/* InsightLearn WASM - Design System Foundation
 * Version: 1.6.5-dev
 * Date: 2025-11-17
 * Description: Core design tokens, color palette, typography, spacing, transitions
 */

/* ================================
 * 1. DESIGN TOKENS - COLOR PALETTE
 * ================================ */

:root {
    /* Purple Gradient - Primary Brand */
    --color-primary: #6C3CE1;           /* Purple base */
    --color-primary-dark: #6C3CE1;      /* Purple dark (hover) */
    --color-primary-light: #818cf8;     /* Purple light (disabled) */
    --color-secondary: #5a2dc7;         /* Purple secondary (gradient end) */

    /* Accent Colors */
    --color-accent-gold: #f59e0b;       /* Gold/Yellow for highlights */
    --color-accent-pink: #ec4899;       /* Pink for special badges */

    /* Semantic Colors */
    --color-success: #10b981;           /* Green for success states */
    --color-warning: #f59e0b;           /* Amber for warnings */
    --color-danger: #ef4444;            /* Red for errors/delete */
    --color-info: #3b82f6;              /* Blue for info messages */

    /* Grayscale Palette */
    --color-gray-50: #f9fafb;           /* Background subtle */
    --color-gray-100: #f3f4f6;          /* Background secondary */
    --color-gray-200: #e5e7eb;          /* Borders, dividers */
    --color-gray-300: #d1d5db;          /* Placeholder text */
    --color-gray-400: #9ca3af;          /* Disabled text */
    --color-gray-500: #6b7280;          /* Muted text */
    --color-gray-600: #4b5563;          /* Body text */
    --color-gray-700: #374151;          /* Headings secondary */
    --color-gray-800: #1f2937;          /* Headings primary */
    --color-gray-900: #111827;          /* Heading darkest */

    /* Text Colors */
    --color-text-primary: #111827;      /* Main body text */
    --color-text-secondary: #6b7280;    /* Secondary text */
    --color-text-muted: #9ca3af;        /* Muted/disabled text */

    /* Background Colors */
    --color-bg-primary: #ffffff;        /* Main background */
    --color-bg-secondary: #f9fafb;      /* Secondary background */
    --color-bg-tertiary: #f3f4f6;       /* Tertiary background */

    /* Border Colors */
    --color-border: #e5e7eb;            /* Default border */
    --color-border-dark: #d1d5db;       /* Dark border */

    /* Signature Gradients */
    --gradient-primary: linear-gradient(135deg, #6C3CE1 0%, #5a2dc7 100%);
    --gradient-hero: linear-gradient(135deg, #6C3CE1 0%, #5a2dc7 50%, #f093fb 100%);
    --gradient-gold: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);

    /* Subtle Gradients */
    --gradient-subtle: linear-gradient(180deg, #ffffff 0%, #f9fafb 100%);
    --gradient-card: linear-gradient(135deg, #f9fafb 0%, #ffffff 100%);
}

/* Dark Mode Support (Future-Ready) */
@media (prefers-color-scheme: dark) {
    :root {
        --color-bg-primary: #111827;
        --color-bg-secondary: #1f2937;
        --color-bg-tertiary: #374151;
        --color-text-primary: #f9fafb;
        --color-text-secondary: #d1d5db;
        --color-text-muted: #9ca3af;
        --color-border: #374151;
        --color-border-dark: #4b5563;
    }
}

/* ================================
 * 2. TYPOGRAPHY
 * ================================ */

:root {
    /* Font Stack */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto',
                 'Helvetica Neue', Arial, sans-serif,
                 'Apple Color Emoji', 'Segoe UI Emoji';
    --font-mono: 'Courier New', Courier, monospace;

    /* Type Scale (Modular Scale 1.25) */
    --text-5xl: clamp(2.5rem, 5vw, 4rem);      /* 40px-64px - Hero */
    --text-4xl: clamp(2rem, 4vw, 3rem);        /* 32px-48px - Page Title */
    --text-3xl: clamp(1.5rem, 3vw, 2rem);      /* 24px-32px - Section Title */
    --text-2xl: 1.5rem;                        /* 24px - Card Title */
    --text-xl: 1.25rem;                        /* 20px - Subheading */
    --text-lg: 1.125rem;                       /* 18px - Large body */
    --text-base: 1rem;                         /* 16px - Body (base) */
    --text-sm: 0.875rem;                       /* 14px - Small text */
    --text-xs: 0.75rem;                        /* 12px - Caption */

    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
}

/* Base Typography */
body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Headings */
h1, .h1 {
    font-size: var(--text-4xl);
    font-weight: var(--font-extrabold);
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--color-gray-900);
    margin-bottom: 1rem;
}

h2, .h2 {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    line-height: 1.2;
    color: var(--color-gray-900);
    margin-bottom: 1rem;
}

h3, .h3 {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    line-height: 1.3;
    color: var(--color-gray-900);
    margin-bottom: 0.75rem;
}

h4, .h4 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    line-height: 1.4;
    color: var(--color-gray-800);
    margin-bottom: 0.5rem;
}

h5, .h5 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    line-height: 1.5;
    color: var(--color-gray-800);
    margin-bottom: 0.5rem;
}

h6, .h6 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    line-height: 1.5;
    color: var(--color-gray-800);
    margin-bottom: 0.5rem;
}

/* Text Utilities */
.lead {
    font-size: var(--text-lg);
    color: var(--color-gray-600);
    line-height: 1.6;
}

.text-muted {
    color: var(--color-text-muted);
}

.text-small {
    font-size: var(--text-sm);
}

.text-xs {
    font-size: var(--text-xs);
}

/* ================================
 * 3. SPACING SYSTEM (8px grid)
 * ================================ */

:root {
    --spacing-0: 0;
    --spacing-1: 0.25rem;       /* 4px */
    --spacing-2: 0.5rem;        /* 8px */
    --spacing-3: 0.75rem;       /* 12px */
    --spacing-4: 1rem;          /* 16px */
    --spacing-5: 1.25rem;       /* 20px */
    --spacing-6: 1.5rem;        /* 24px */
    --spacing-8: 2rem;          /* 32px */
    --spacing-10: 2.5rem;       /* 40px */
    --spacing-12: 3rem;         /* 48px */
    --spacing-16: 4rem;         /* 64px */
    --spacing-20: 5rem;         /* 80px */
    --spacing-24: 6rem;         /* 96px */
}

/* Common Layout Patterns */
.container-max {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-6);
}

.section-padding {
    padding: var(--spacing-16) 0;
}

/* ================================
 * 4. BORDER RADIUS & SHADOWS
 * ================================ */

:root {
    /* Border Radius Scale */
    --radius-none: 0;
    --radius-sm: 0.25rem;       /* 4px - Small elements */
    --radius-md: 0.5rem;        /* 8px - Buttons, inputs */
    --radius-lg: 0.75rem;       /* 12px - Cards */
    --radius-xl: 1rem;          /* 16px - Large cards */
    --radius-2xl: 1.5rem;       /* 24px - Hero cards */
    --radius-3xl: 2rem;         /* 32px - Special cards */
    --radius-full: 9999px;      /* Pill shape, avatars */

    /* Elevation Shadows */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Special Purpose Shadows */
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    --shadow-focus: 0 0 0 3px rgba(102, 126, 234, 0.5);  /* Purple glow */
}

/* ================================
 * 5. TRANSITIONS & ANIMATIONS
 * ================================ */

:root {
    /* Transition Timing */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Easing Functions */
    --ease-in: cubic-bezier(0.4, 0, 1, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Standard Transition Classes */
.transition-all {
    transition: all var(--transition-base);
}

.transition-colors {
    transition: background-color var(--transition-base),
                border-color var(--transition-base),
                color var(--transition-base);
}

.transition-transform {
    transition: transform var(--transition-base);
}

/* Keyframe Animations */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer {
    0% { background-position: -1000px 0; }
    100% { background-position: 1000px 0; }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Animation Utility Classes */
.animate-float {
    animation: float 3s ease-in-out infinite;
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-fadeIn {
    animation: fadeIn 0.5s ease-out;
}

.animate-spin {
    animation: spin 1s linear infinite;
}
/* ===== INSIGHTLEARN DESIGN SYSTEM v1.0 ===== */
/* Redis.io-Inspired Clean, Minimal UI/UX Foundation */

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
    /* PRIMARY COLOR SYSTEM */
    --primary-red: #dc2626;
    --primary-red-hover: #b91c1c;
    --primary-red-light: #fecaca;

    /* NEUTRAL GRAYSCALE */
    --gray-900: #111827;        /* Primary text */
    --gray-700: #374151;        /* Secondary text */
    --gray-500: #6b7280;        /* Placeholder text */
    --gray-400: #9ca3af;        /* Disabled text */
    --gray-300: #d1d5db;        /* Light borders */
    --gray-200: #e5e7eb;        /* Subtle borders */
    --gray-100: #f3f4f6;        /* Light backgrounds */
    --gray-50: #f9fafb;         /* Lightest background */

    /* BACKGROUND SYSTEM */
    --bg-white: #ffffff;
    --bg-subtle: #f8fafc;
    --bg-hover: #f3f4f6;

    /* SEMANTIC COLORS */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;

    /* TYPOGRAPHY */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Inter', sans-serif;
    
    /* Type Scale */
    --text-6xl: 3.75rem;        /* 60px - Page titles */
    --text-5xl: 3rem;           /* 48px - Section headers */
    --text-4xl: 2.25rem;        /* 36px - Component titles */
    --text-3xl: 1.875rem;       /* 30px - Card headers */
    --text-2xl: 1.5rem;         /* 24px - Subsection headers */
    --text-xl: 1.25rem;         /* 20px - Large body text */
    --text-base: 1rem;          /* 16px - Standard body text */
    --text-sm: 0.875rem;        /* 14px - Small text, labels */
    --text-xs: 0.75rem;         /* 12px - Captions, metadata */

    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;

    /* Line Heights */
    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;

    /* SPACING SCALE */
    --space-0: 0;
    --space-1: 0.25rem;         /* 4px */
    --space-2: 0.5rem;          /* 8px */
    --space-3: 0.75rem;         /* 12px */
    --space-4: 1rem;            /* 16px */
    --space-5: 1.25rem;         /* 20px */
    --space-6: 1.5rem;          /* 24px */
    --space-8: 2rem;            /* 32px */
    --space-10: 2.5rem;         /* 40px */
    --space-12: 3rem;           /* 48px */
    --space-16: 4rem;           /* 64px */
    --space-20: 5rem;           /* 80px */
    --space-24: 6rem;           /* 96px */

    /* BORDER RADIUS */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;

    /* SHADOWS */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.08);

    /* TRANSITIONS */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
}

/* ===== BASE RESET & FOUNDATION ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: var(--leading-normal);
    color: var(--gray-700);
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-size: var(--text-base);
    color: var(--gray-700);
    background-color: var(--bg-white);
}

/* ===== TYPOGRAPHY SYSTEM ===== */
h1, .text-6xl {
    font-size: var(--text-6xl);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    color: var(--gray-900);
    margin-bottom: var(--space-6);
}

h2, .text-5xl {
    font-size: var(--text-5xl);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    color: var(--gray-900);
    margin-bottom: var(--space-5);
}

h3, .text-4xl {
    font-size: var(--text-4xl);
    font-weight: var(--font-semibold);
    line-height: var(--leading-tight);
    color: var(--gray-900);
    margin-bottom: var(--space-4);
}

h4, .text-3xl {
    font-size: var(--text-3xl);
    font-weight: var(--font-semibold);
    line-height: var(--leading-tight);
    color: var(--gray-900);
    margin-bottom: var(--space-4);
}

h5, .text-2xl {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    line-height: var(--leading-normal);
    color: var(--gray-900);
    margin-bottom: var(--space-3);
}

h6, .text-xl {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    line-height: var(--leading-normal);
    color: var(--gray-900);
    margin-bottom: var(--space-3);
}

p {
    font-size: var(--text-base);
    color: var(--gray-700);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-4);
}

.text-sm {
    font-size: var(--text-sm);
}

.text-xs {
    font-size: var(--text-xs);
}

.font-light { font-weight: var(--font-light); }
.font-normal { font-weight: var(--font-normal); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }

.text-gray-900 { color: var(--gray-900); }
.text-gray-700 { color: var(--gray-700); }
.text-gray-500 { color: var(--gray-500); }

/* ===== LAYOUT SYSTEM ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-4);
    }
}

.grid {
    display: grid;
    gap: var(--space-6);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-cols-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .grid-cols-4,
    .grid-cols-3,
    .grid-cols-2 { 
        grid-template-columns: repeat(1, 1fr); 
    }
}

/* ===== SPACING UTILITIES ===== */
.mt-0 { margin-top: var(--space-0); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.mb-0 { margin-bottom: var(--space-0); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }

.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-6 { padding-top: var(--space-6); padding-bottom: var(--space-6); }

/* ===== ACCESSIBILITY ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus indicators - WCAG 2.1 AA compliant */
*:focus-visible {
    outline: 2px solid var(--primary-red);
    outline-offset: 2px;
}

/* ===== REDUCED MOTION SUPPORT ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        transition-delay: 0ms !important;
        scroll-behavior: auto !important;
    }
}

/* ===== HIGH CONTRAST MODE SUPPORT ===== */
@media (prefers-contrast: high) {
    :root {
        --gray-900: #000000;
        --gray-700: #333333;
        --gray-300: #666666;
        --gray-200: #999999;
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    :root {
        --shadow-sm: none;
        --shadow-md: none;
        --shadow-lg: none;
    }
    
    * {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
    }
}/* ===== DESIGN SYSTEM COMPONENTS ===== */
/* Redis.io-Inspired Component Library */

/* ===== BUTTON COMPONENTS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    line-height: 1;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    min-height: 44px; /* Accessibility: minimum touch target */
}

.btn:focus-visible {
    outline: 2px solid var(--primary-red);
    outline-offset: 2px;
}

/* Primary Button */
.btn-primary {
    background-color: var(--primary-red);
    color: white;
    border-color: var(--primary-red);
}

.btn-primary:hover {
    background-color: var(--primary-red-hover);
    border-color: var(--primary-red-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    color: white;
    text-decoration: none;
}

.btn-primary:active {
    transform: translateY(0);
}

/* Secondary Button */
.btn-secondary {
    background-color: transparent;
    color: var(--gray-700);
    border-color: var(--gray-300);
}

.btn-secondary:hover {
    background-color: var(--bg-hover);
    border-color: var(--gray-400);
    color: var(--gray-700);
    text-decoration: none;
}

/* Ghost Button */
.btn-ghost {
    background-color: transparent;
    color: var(--gray-700);
    border-color: transparent;
}

.btn-ghost:hover {
    background-color: var(--bg-hover);
    color: var(--gray-900);
    text-decoration: none;
}

/* Button Sizes */
.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-xs);
    min-height: 36px;
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
    min-height: 52px;
}

/* Button States */
.btn:disabled,
.btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn:disabled:hover,
.btn.disabled:hover {
    transform: none;
    box-shadow: none;
}

/* ===== FORM COMPONENTS ===== */
.form-group {
    margin-bottom: var(--space-6);
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--gray-700);
    margin-bottom: var(--space-2);
}

.form-label.required::after {
    content: " *";
    color: var(--error);
}

.form-input,
.form-select,
.form-textarea {
    display: block;
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-primary);
    font-size: var(--text-base);
    color: var(--gray-900);
    background-color: var(--bg-white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    min-height: 44px; /* Accessibility */
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-red);
    box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.1);
}

.form-input::placeholder {
    color: var(--gray-400);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

/* Form Validation States */
.form-input.error,
.form-select.error,
.form-textarea.error {
    border-color: var(--error);
}

.form-input.success,
.form-select.success,
.form-textarea.success {
    border-color: var(--success);
}

.form-error {
    display: block;
    font-size: var(--text-sm);
    color: var(--error);
    margin-top: var(--space-1);
}

.form-help {
    display: block;
    font-size: var(--text-sm);
    color: var(--gray-500);
    margin-top: var(--space-1);
}

/* Checkbox and Radio */
.form-check {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.form-check-input {
    width: 20px;
    height: 20px;
    margin-top: 2px; /* Align with first line of text */
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-sm);
    background-color: var(--bg-white);
    cursor: pointer;
}

.form-check-input:checked {
    background-color: var(--primary-red);
    border-color: var(--primary-red);
}

.form-check-label {
    font-size: var(--text-sm);
    color: var(--gray-700);
    cursor: pointer;
    line-height: var(--leading-normal);
}

/* ===== CARD COMPONENTS ===== */
.card {
    background-color: var(--bg-white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-fast);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--gray-100);
}

.card-title {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--gray-900);
    margin: 0 0 var(--space-1) 0;
}

.card-subtitle {
    font-size: var(--text-sm);
    color: var(--gray-500);
    margin: 0;
}

.card-body {
    color: var(--gray-700);
}

.card-footer {
    margin-top: var(--space-6);
    padding-top: var(--space-4);
    border-top: 1px solid var(--gray-100);
}

/* Card Variants */
.card-elevated {
    box-shadow: var(--shadow-md);
}

.card-bordered {
    border: 2px solid var(--gray-200);
}

/* ===== TABLE COMPONENTS ===== */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
    background-color: var(--bg-white);
}

.table th {
    background-color: var(--gray-50);
    font-weight: var(--font-semibold);
    color: var(--gray-700);
    padding: var(--space-4) var(--space-6);
    text-align: left;
    border-bottom: 2px solid var(--gray-200);
    white-space: nowrap;
}

.table td {
    padding: var(--space-4) var(--space-6);
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-100);
    vertical-align: top;
}

.table tbody tr:hover {
    background-color: var(--bg-hover);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* ===== BADGE COMPONENTS ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    line-height: 1;
    border-radius: var(--radius-md);
    white-space: nowrap;
}

.badge-gray {
    background-color: var(--gray-100);
    color: var(--gray-700);
}

.badge-red {
    background-color: var(--primary-red-light);
    color: var(--primary-red-hover);
}

.badge-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.badge-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.badge-error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--error);
}

/* ===== ALERT COMPONENTS ===== */
.alert {
    padding: var(--space-4) var(--space-6);
    margin-bottom: var(--space-6);
    border: 1px solid transparent;
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
}

.alert-info {
    background-color: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.2);
    color: var(--info);
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.alert-error {
    background-color: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.2);
    color: var(--error);
}

/* ===== PROGRESS COMPONENTS ===== */
.progress {
    width: 100%;
    height: 8px;
    background-color: var(--gray-200);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--primary-red);
    border-radius: var(--radius-md);
    transition: width var(--transition-normal);
}

.progress-sm {
    height: 4px;
}

.progress-lg {
    height: 12px;
}

/* ===== LOADING COMPONENTS ===== */
.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--gray-200);
    border-radius: 50%;
    border-top-color: var(--primary-red);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

.spinner-lg {
    width: 48px;
    height: 48px;
    border-width: 4px;
}

/* Loading state for components */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

/* ===== DROPDOWN COMPONENTS ===== */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + var(--space-2));
    left: 0;
    min-width: 200px;
    background-color: var(--bg-white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-2) 0;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-fast);
}

.dropdown.open .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    width: 100%;
    padding: var(--space-3) var(--space-4);
    color: var(--gray-700);
    text-decoration: none;
    font-size: var(--text-sm);
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.dropdown-item:hover {
    background-color: var(--bg-hover);
    color: var(--gray-900);
    text-decoration: none;
}

.dropdown-divider {
    height: 1px;
    background-color: var(--gray-200);
    margin: var(--space-2) 0;
    border: none;
}

/* ===== MODAL COMPONENTS ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.open {
    opacity: 1;
    visibility: visible;
}

.modal {
    background-color: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

.modal-overlay.open .modal {
    transform: scale(1);
}

.modal-header {
    padding: var(--space-6) var(--space-6) 0;
}

.modal-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    color: var(--gray-900);
    margin: 0;
}

.modal-body {
    padding: var(--space-6);
}

.modal-footer {
    padding: 0 var(--space-6) var(--space-6);
    display: flex;
    gap: var(--space-3);
    justify-content: flex-end;
}

.modal-close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    background: none;
    border: none;
    font-size: var(--text-xl);
    color: var(--gray-400);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--bg-hover);
    color: var(--gray-700);
}

/* ===== DASHBOARD COMPONENTS ===== */
/* Redis.io-Inspired Dashboard Elements */

/* Metric Cards */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-12);
}

.metric-card {
    background-color: var(--bg-white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.metric-card:hover {
    border-color: var(--gray-300);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.metric-value {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--gray-900);
    line-height: var(--leading-tight);
    margin-bottom: var(--space-2);
}

.metric-label {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--gray-500);
    margin-bottom: var(--space-3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.metric-change {
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}

.metric-change.positive {
    color: var(--success);
    background-color: rgba(16, 185, 129, 0.1);
}

.metric-change.negative {
    color: var(--error);
    background-color: rgba(239, 68, 68, 0.1);
}

.metric-change.neutral {
    color: var(--gray-500);
    background-color: var(--gray-100);
}

/* Activity Feed Components */
.activity-section {
    background-color: var(--bg-white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-8);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-6);
    border-bottom: 1px solid var(--gray-200);
    background-color: var(--gray-50);
}

.section-title {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--gray-900);
    margin: 0;
}

.view-all-link {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--primary-red);
    text-decoration: none;
    transition: color var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.view-all-link:hover {
    color: var(--primary-red-hover);
    text-decoration: none;
}

.activity-list {
    padding: var(--space-2) 0;
}

.activity-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--gray-100);
    transition: background-color var(--transition-fast);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-item:hover {
    background-color: var(--gray-50);
}

.activity-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.activity-action {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--gray-900);
}

.activity-time {
    font-size: var(--text-xs);
    color: var(--gray-500);
}

.activity-link {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--primary-red);
    text-decoration: none;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.activity-link:hover {
    color: var(--primary-red-hover);
    background-color: var(--primary-red-light);
    text-decoration: none;
}

/* Data Table Components */
.data-table-container {
    background-color: var(--bg-white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-8);
}

.table-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-6);
    background-color: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}

.table-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.search-box {
    position: relative;
    width: 280px;
}

.search-box .form-input {
    padding-right: var(--space-10);
    margin: 0;
}

.search-icon {
    position: absolute;
    right: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    pointer-events: none;
}

.clean-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
    background-color: var(--bg-white);
}

.clean-table th {
    background-color: var(--bg-white);
    padding: var(--space-4) var(--space-6);
    text-align: left;
    font-weight: var(--font-semibold);
    color: var(--gray-700);
    border-bottom: 2px solid var(--gray-200);
    white-space: nowrap;
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.clean-table td {
    padding: var(--space-4) var(--space-6);
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-100);
    vertical-align: middle;
}

.clean-table tr:hover {
    background-color: var(--gray-50);
}

.clean-table tr:last-child td {
    border-bottom: none;
}

.table-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-6);
    background-color: var(--gray-50);
    border-top: 1px solid var(--gray-200);
}

.pagination-info {
    font-size: var(--text-sm);
    color: var(--gray-500);
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.pagination-btn {
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--gray-300);
    background-color: var(--bg-white);
    color: var(--gray-700);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
    min-width: 36px;
    text-align: center;
}

.pagination-btn:hover {
    background-color: var(--gray-50);
    border-color: var(--gray-400);
    color: var(--gray-700);
    text-decoration: none;
}

.pagination-btn.active {
    background-color: var(--primary-red);
    border-color: var(--primary-red);
    color: white;
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Page Header Components */
.page-header {
    margin-bottom: var(--space-12);
    padding-bottom: var(--space-6);
}

.page-title {
    font-size: var(--text-5xl);
    font-weight: var(--font-bold);
    color: var(--gray-900);
    margin: 0 0 var(--space-2) 0;
    line-height: var(--leading-tight);
}

.page-subtitle {
    font-size: var(--text-base);
    color: var(--gray-500);
    margin: 0;
    font-weight: var(--font-normal);
}

/* Status Indicators */
.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-active {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.status-inactive {
    background-color: var(--gray-100);
    color: var(--gray-500);
}

.status-pending {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.status-draft {
    background-color: var(--gray-100);
    color: var(--gray-600);
}

/* Action Buttons */
.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-300);
    background-color: var(--bg-white);
    color: var(--gray-600);
    transition: all var(--transition-fast);
    cursor: pointer;
    text-decoration: none;
}

.btn-icon:hover {
    background-color: var(--gray-50);
    color: var(--primary-red);
    border-color: var(--gray-400);
    text-decoration: none;
}

.btn-icon.btn-danger:hover {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border-color: rgba(239, 68, 68, 0.3);
}

/* Layout Components */
.main-content {
    min-height: calc(100vh - var(--header-height, 72px));
    background-color: var(--bg-subtle);
    padding: var(--space-8) 0;
}

.dashboard-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* Filter Components */
.filters-bar {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
    padding: var(--space-4) var(--space-6);
    background-color: var(--bg-white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
}

.filter-group {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.filter-label {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--gray-700);
    white-space: nowrap;
}

.filter-dropdown {
    min-width: 140px;
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    background-color: var(--bg-white);
    font-size: var(--text-sm);
    color: var(--gray-700);
}

.filter-dropdown:focus {
    outline: none;
    border-color: var(--primary-red);
    box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.1);
}

/* ===== RESPONSIVE ADJUSTMENTS ===== */
@media (max-width: 1024px) {
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .table-header {
        flex-direction: column;
        gap: var(--space-4);
        align-items: stretch;
    }
    
    .search-box {
        width: 100%;
    }
    
    .filters-bar {
        flex-wrap: wrap;
    }
}

@media (max-width: 768px) {
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .modal {
        width: 95%;
        margin: var(--space-4);
    }
    
    .table-container {
        font-size: var(--text-xs);
    }
    
    .card {
        padding: var(--space-4);
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
    
    .metric-card {
        padding: var(--space-4);
    }
    
    .activity-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
    }
    
    .dashboard-container {
        padding: 0 var(--space-4);
    }
    
    .page-title {
        font-size: var(--text-4xl);
    }
    
    .clean-table {
        font-size: var(--text-xs);
    }
    
    .clean-table th,
    .clean-table td {
        padding: var(--space-3) var(--space-4);
    }
    
    .table-pagination {
        flex-direction: column;
        gap: var(--space-4);
        align-items: center;
    }
}

/* ===== LOADING SCREEN COMPONENT ===== */
.loading-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background-color: var(--bg-primary);
    padding: var(--space-6);
}

.loading-container {
    max-width: 400px;
    width: 100%;
    text-align: center;
    padding: var(--space-8);
    background-color: var(--bg-primary);
}

.loading-spinner {
    display: flex;
    justify-content: center;
    margin-bottom: var(--space-6);
}

.loading-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-4);
    letter-spacing: var(--letter-tight);
}

.loading-description {
    font-size: var(--text-base);
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    line-height: var(--leading-relaxed);
}

.loading-progress {
    margin-bottom: var(--space-6);
}

.progress-bar {
    width: 100%;
    height: 4px;
    background-color: var(--gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    width: 75%;
    height: 100%;
    background-color: var(--primary-red);
    border-radius: var(--radius-full);
    transition: width 0.5s var(--ease-out);
}

.loading-hint {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    font-weight: var(--font-medium);
}

/* Loading screen responsive adjustments */
@media (max-width: 640px) {
    .loading-container {
        padding: var(--space-6);
    }
    
    .loading-title {
        font-size: var(--text-xl);
    }
}/* ===== DESIGN SYSTEM DASHBOARD LAYOUTS ===== */
/* Redis.io-Inspired Clean Dashboard Components */

/* ===== PAGE STRUCTURE ===== */
.dashboard-layout {
    min-height: 100vh;
    background-color: var(--bg-white);
}

.dashboard-main {
    padding: var(--space-8) 0;
    min-height: calc(100vh - var(--header-height, 72px));
}

/* ===== PAGE HEADER COMPONENTS ===== */
.page-header {
    margin-bottom: var(--space-12);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--gray-200);
}

.page-title h1 {
    font-size: var(--text-5xl);
    font-weight: var(--font-bold);
    color: var(--gray-900);
    margin: 0 0 var(--space-3) 0;
    line-height: var(--leading-tight);
    letter-spacing: -0.025em;
}

.page-subtitle {
    font-size: var(--text-base);
    color: var(--gray-500);
    margin: 0;
    font-weight: var(--font-medium);
}

/* ===== BREADCRUMB NAVIGATION ===== */
.page-breadcrumb {
    margin-bottom: var(--space-8);
}

.breadcrumb {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: var(--text-sm);
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    color: var(--gray-500);
    font-weight: var(--font-medium);
}

.breadcrumb-item:not(:last-child)::after {
    content: '/';
    margin: 0 var(--space-3);
    color: var(--gray-300);
    font-weight: var(--font-normal);
}

.breadcrumb-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--gray-500);
    text-decoration: none;
    transition: color var(--transition-fast);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
}

.breadcrumb-link:hover {
    color: var(--primary-red);
    background-color: var(--bg-hover);
    text-decoration: none;
}

.breadcrumb-item.active {
    color: var(--gray-700);
    font-weight: var(--font-semibold);
}

/* ===== METRIC CARDS ===== */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-12);
}

.metric-card {
    background-color: var(--bg-white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.metric-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.metric-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
}

.metric-title {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
}

.metric-icon {
    width: 24px;
    height: 24px;
    color: var(--gray-400);
}

.metric-value {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--gray-900);
    line-height: var(--leading-tight);
    margin-bottom: var(--space-2);
}

.metric-change {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
}

.metric-change.positive {
    color: var(--success);
}

.metric-change.negative {
    color: var(--error);
}

.metric-change.neutral {
    color: var(--gray-500);
}

/* ===== DASHBOARD CARDS ===== */
.dashboard-card {
    background-color: var(--bg-white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.dashboard-card-header {
    padding: var(--space-6) var(--space-6) 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.dashboard-card-title {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--gray-900);
    margin: 0;
}

.dashboard-card-action {
    font-size: var(--text-sm);
    color: var(--primary-red);
    text-decoration: none;
    font-weight: var(--font-medium);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.dashboard-card-action:hover {
    background-color: var(--primary-red-light);
    text-decoration: none;
    color: var(--primary-red-hover);
}

.dashboard-card-body {
    padding: var(--space-6);
}

.dashboard-card-body.no-padding {
    padding: 0;
}

/* ===== SYSTEM STATUS BANNER ===== */
.system-status-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-6);
    margin-bottom: var(--space-8);
    border-radius: var(--radius-lg);
    border: 1px solid transparent;
}

.system-status-banner.status-healthy {
    background-color: rgba(16, 185, 129, 0.05);
    border-color: rgba(16, 185, 129, 0.2);
}

.system-status-banner.status-warning {
    background-color: rgba(245, 158, 11, 0.05);
    border-color: rgba(245, 158, 11, 0.2);
}

.system-status-banner.status-error {
    background-color: rgba(239, 68, 68, 0.05);
    border-color: rgba(239, 68, 68, 0.2);
}

.status-content {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.status-dot.online {
    background-color: var(--success);
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
}

.status-dot.offline {
    background-color: var(--error);
    box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.2);
}

.status-text {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--gray-700);
}

.status-details {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.status-metric {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    color: var(--gray-500);
    font-weight: var(--font-medium);
}

.status-metric i {
    font-size: var(--text-xs);
}

/* ===== DATA VISUALIZATION ===== */
.chart-container {
    width: 100%;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-subtle);
    border-radius: var(--radius-lg);
    margin: var(--space-6) 0;
}

.chart-placeholder {
    text-align: center;
    color: var(--gray-400);
}

.chart-placeholder i {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-4);
    display: block;
}

/* ===== ACTIVITY FEED ===== */
.activity-feed {
    max-height: 400px;
    overflow-y: auto;
}

.activity-item {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--gray-100);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-500);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    flex-shrink: 0;
}

.activity-content {
    flex: 1;
    min-width: 0;
}

.activity-text {
    font-size: var(--text-sm);
    color: var(--gray-700);
    margin-bottom: var(--space-1);
    line-height: var(--leading-normal);
}

.activity-time {
    font-size: var(--text-xs);
    color: var(--gray-400);
    font-weight: var(--font-medium);
}

/* ===== DASHBOARD TABLES ===== */
.dashboard-table-wrapper {
    background-color: var(--bg-white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.dashboard-table {
    width: 100%;
    border-collapse: collapse;
}

.dashboard-table th {
    background-color: var(--gray-50);
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--gray-700);
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.dashboard-table td {
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-sm);
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-100);
    vertical-align: middle;
}

.dashboard-table tbody tr:hover {
    background-color: var(--bg-hover);
}

.dashboard-table tbody tr:last-child td {
    border-bottom: none;
}

/* ===== COURSE CARDS (Student Dashboard) ===== */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
}

.course-card {
    background-color: var(--bg-white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.course-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.course-image {
    width: 100%;
    height: 180px;
    background-color: var(--gray-100);
    background-image: linear-gradient(135deg, var(--gray-100), var(--gray-50));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    font-size: var(--text-2xl);
}

.course-content {
    padding: var(--space-6);
}

.course-title {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--gray-900);
    margin: 0 0 var(--space-2) 0;
    line-height: var(--leading-tight);
}

.course-instructor {
    font-size: var(--text-sm);
    color: var(--gray-500);
    margin-bottom: var(--space-4);
}

.course-progress {
    margin-bottom: var(--space-4);
}

.progress-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-2);
    font-size: var(--text-sm);
    color: var(--gray-700);
    font-weight: var(--font-medium);
}

.progress-bar-container {
    width: 100%;
    height: 6px;
    background-color: var(--gray-200);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background-color: var(--primary-red);
    border-radius: var(--radius-md);
    transition: width var(--transition-normal);
}

.course-actions {
    display: flex;
    gap: var(--space-3);
}

/* ===== LOADING STATES ===== */
.dashboard-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    flex-direction: column;
    gap: var(--space-4);
}

.dashboard-loading-text {
    font-size: var(--text-base);
    color: var(--gray-500);
    font-weight: var(--font-medium);
}

/* ===== EMPTY STATES ===== */
.empty-state {
    text-align: center;
    padding: var(--space-16) var(--space-8);
}

.empty-state-icon {
    font-size: var(--text-6xl);
    color: var(--gray-300);
    margin-bottom: var(--space-6);
}

.empty-state-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    color: var(--gray-700);
    margin-bottom: var(--space-4);
}

.empty-state-description {
    font-size: var(--text-base);
    color: var(--gray-500);
    margin-bottom: var(--space-8);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
    line-height: var(--leading-relaxed);
}

/* ===== RESPONSIVE DASHBOARD ===== */
@media (max-width: 1024px) {
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .course-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .status-details {
        display: none;
    }
}

@media (max-width: 768px) {
    .dashboard-main {
        padding: var(--space-6) 0;
    }
    
    .page-header {
        margin-bottom: var(--space-8);
    }
    
    .page-title h1 {
        font-size: var(--text-4xl);
    }
    
    .metrics-grid,
    .course-grid {
        grid-template-columns: 1fr;
    }
    
    .system-status-banner {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-4);
    }
    
    .dashboard-card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-3);
    }
    
    .dashboard-table th,
    .dashboard-table td {
        padding: var(--space-3) var(--space-4);
        font-size: var(--text-xs);
    }
}

@media (max-width: 480px) {
    .dashboard-card,
    .metric-card {
        padding: var(--space-4);
    }
    
    .metric-value {
        font-size: var(--text-3xl);
    }
    
    .course-content {
        padding: var(--space-4);
    }
    
    .empty-state {
        padding: var(--space-12) var(--space-4);
    }
}

/* ===== ADMIN DASHBOARD SPECIFIC COMPONENTS ===== */

/* Loading State for Inline Content */
.loading-state-inline {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-8);
    gap: var(--space-4);
}

.loading-text {
    font-size: var(--text-base);
    color: var(--text-secondary);
    font-weight: var(--font-medium);
}

/* Breadcrumb Navigation */
.breadcrumb-nav {
    margin-bottom: var(--space-6);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.breadcrumb-item {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb-item:hover {
    color: var(--text-primary);
}

.breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: var(--font-medium);
}

.breadcrumb-separator {
    color: var(--text-tertiary);
}

/* Page Header */
.page-header .page-title {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin: 0 0 var(--space-3) 0;
    letter-spacing: var(--letter-tight);
}

.page-description {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin: 0;
    font-weight: var(--font-medium);
}

/* Metrics Section */
.metrics-section {
    margin-bottom: var(--space-12);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-6);
}

/* Stat Cards (Clean Metrics) */
.stat-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    transition: all var(--transition-fast);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--gray-300);
}

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-4);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background-color: var(--primary-red);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
}

.stat-trend {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
}

.trend-indicator {
    color: var(--text-secondary);
    background-color: var(--gray-100);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-md);
}

.stat-trend.positive .trend-indicator {
    color: var(--green-600);
    background-color: var(--green-50);
}

.stat-trend.negative .trend-indicator {
    color: var(--red-600);
    background-color: var(--red-50);
}

.stat-content {
    text-align: left;
}

.stat-value {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.stat-label {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.stat-subtitle {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

/* Status Variants */
.stat-card.stat-success .stat-icon {
    background-color: var(--green-500);
}

.stat-card.stat-warning .stat-icon {
    background-color: var(--yellow-500);
}

.stat-card.stat-danger .stat-icon {
    background-color: var(--red-500);
}

/* Dashboard Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-12);
}

/* Clean Cards */
.clean-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.clean-card .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-6);
    border-bottom: 1px solid var(--gray-200);
}

.clean-card .card-title h3 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin: 0;
}

.clean-card .card-content {
    padding: var(--space-6);
}

/* Link Button */
.link-button {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--primary-red);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.link-button:hover {
    color: var(--primary-red-hover);
    text-decoration: none;
}

.link-button i {
    font-size: var(--text-xs);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .metrics-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
    
    .content-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
    
    .stat-card {
        padding: var(--space-5);
    }
    
    .stat-value {
        font-size: var(--text-3xl);
    }
    
    .page-header .page-title {
        font-size: var(--text-3xl);
    }
    
    .clean-card .card-header,
    .clean-card .card-content {
        padding: var(--space-5);
    }
}

/* ===== STUDENT DASHBOARD SPECIFIC COMPONENTS ===== */

/* Container */
.container-max {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* Welcome Banner */
.welcome-banner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-red-hover) 100%);
    color: white;
    padding: var(--space-8);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-8);
    box-shadow: var(--shadow-lg);
}

.welcome-content {
    flex: 1;
}

.welcome-title {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    margin: 0 0 var(--space-2) 0;
    color: white;
}

.welcome-subtitle {
    font-size: var(--text-lg);
    margin: 0;
    opacity: 0.9;
    color: white;
}

.welcome-icon {
    font-size: 3rem;
    opacity: 0.8;
    margin-left: var(--space-6);
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

.courses-section,
.progress-section {
    min-height: 400px;
}

/* Course List */
.courses-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.course-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: var(--space-5);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    background-color: var(--bg-primary);
    transition: all var(--transition-fast);
}

.course-item:hover {
    border-color: var(--gray-300);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.course-info {
    flex: 1;
    margin-right: var(--space-6);
}

.course-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin: 0 0 var(--space-2) 0;
}

.course-category {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin: 0 0 var(--space-1) 0;
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.course-date {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    margin: 0;
}

.course-progress {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-2);
    min-width: 160px;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background-color: var(--gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--primary-red);
    border-radius: var(--radius-full);
    transition: width 0.3s var(--ease-out);
}

.progress-text {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin: 0;
    font-weight: var(--font-medium);
}

/* Stats List */
.stats-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--gray-200);
}

.stat-item:last-child {
    border-bottom: none;
}

.stat-label {
    font-size: var(--text-base);
    color: var(--text-secondary);
    font-weight: var(--font-medium);
}

.stat-value {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    background-color: var(--gray-100);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-md);
}

/* Activity Section */
.activity-section {
    margin-bottom: var(--space-8);
}

/* Error State */
.error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-8);
    text-align: center;
    gap: var(--space-4);
}

.error-state i {
    font-size: 3rem;
    color: var(--yellow-500);
    margin-bottom: var(--space-2);
}

.error-state h3 {
    font-size: var(--text-xl);
    color: var(--text-primary);
    margin: 0;
    font-weight: var(--font-semibold);
}

.error-text {
    font-size: var(--text-base);
    color: var(--text-secondary);
    margin: 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
}

@media (max-width: 768px) {
    .container-max {
        padding: 0 var(--space-4);
    }
    
    .welcome-banner {
        flex-direction: column;
        text-align: center;
        gap: var(--space-4);
    }
    
    .welcome-icon {
        margin-left: 0;
        font-size: 2.5rem;
    }
    
    .welcome-title {
        font-size: var(--text-2xl);
    }
    
    .course-item {
        flex-direction: column;
        gap: var(--space-4);
    }
    
    .course-info {
        margin-right: 0;
    }
    
    .course-progress {
        align-items: stretch;
        min-width: auto;
    }
}

@media (max-width: 480px) {
    .welcome-banner {
        padding: var(--space-6);
    }
    
    .course-item {
        padding: var(--space-4);
    }
    
    .welcome-title {
        font-size: var(--text-xl);
    }
}


/* ===== INSTRUCTOR DASHBOARD SPECIFIC COMPONENTS ===== */

/* Instructor Welcome Banner */
.instructor-welcome-banner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, var(--green-500) 0%, var(--green-600) 100%);
    color: white;
    padding: var(--space-8);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-8);
    box-shadow: var(--shadow-lg);
}

/* Instructor Course Items */
.instructor-course-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: var(--space-5);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    background-color: var(--bg-primary);
    transition: all var(--transition-fast);
}

.instructor-course-item:hover {
    border-color: var(--gray-300);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.course-enrollment {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin: 0 0 var(--space-2) 0;
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.course-metrics {
    display: flex;
    gap: var(--space-4);
    align-items: center;
}

.course-metrics .metric {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-weight: var(--font-medium);
}

.course-metrics .metric.revenue {
    color: var(--green-600);
    font-weight: var(--font-semibold);
}

.course-metrics .metric i {
    color: var(--yellow-500);
}

.course-metrics .metric.revenue i {
    color: var(--green-600);
}

.course-actions {
    display: flex;
    align-items: center;
}

/* Actions Grid */
.actions-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

/* Action Buttons */
.action-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.action-buttons .btn {
    justify-content: flex-start;
    text-align: left;
    padding: var(--space-4) var(--space-5);
}

.action-buttons .btn i {
    margin-right: var(--space-3);
    width: 16px;
    text-align: center;
}

/* Responsive Design for Instructor Dashboard */
@media (max-width: 1024px) {
    .actions-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
}

@media (max-width: 768px) {
    .instructor-welcome-banner {
        flex-direction: column;
        text-align: center;
        gap: var(--space-4);
    }
    
    .instructor-course-item {
        flex-direction: column;
        gap: var(--space-4);
    }
    
    .course-info {
        margin-right: 0;
    }
    
    .course-actions {
        align-self: stretch;
    }
    
    .course-actions .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .instructor-welcome-banner {
        padding: var(--space-6);
    }
    
    .instructor-course-item {
        padding: var(--space-4);
    }
    
    .action-buttons .btn {
        padding: var(--space-3) var(--space-4);
    }
}
/* ===== DESIGN SYSTEM UTILITIES ===== */
/* Redis.io-Inspired Utility Classes */

/* ===== SPACING UTILITIES ===== */
/* Margin utilities */
.m-0 { margin: var(--space-0); }
.m-1 { margin: var(--space-1); }
.m-2 { margin: var(--space-2); }
.m-3 { margin: var(--space-3); }
.m-4 { margin: var(--space-4); }
.m-5 { margin: var(--space-5); }
.m-6 { margin: var(--space-6); }
.m-8 { margin: var(--space-8); }
.m-10 { margin: var(--space-10); }
.m-12 { margin: var(--space-12); }
.m-16 { margin: var(--space-16); }
.m-20 { margin: var(--space-20); }
.m-24 { margin: var(--space-24); }

/* Margin top */
.mt-0 { margin-top: var(--space-0); }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-10 { margin-top: var(--space-10); }
.mt-12 { margin-top: var(--space-12); }
.mt-16 { margin-top: var(--space-16); }
.mt-20 { margin-top: var(--space-20); }
.mt-24 { margin-top: var(--space-24); }

/* Margin bottom */
.mb-0 { margin-bottom: var(--space-0); }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-10 { margin-bottom: var(--space-10); }
.mb-12 { margin-bottom: var(--space-12); }
.mb-16 { margin-bottom: var(--space-16); }
.mb-20 { margin-bottom: var(--space-20); }
.mb-24 { margin-bottom: var(--space-24); }

/* Margin left and right */
.ml-0 { margin-left: var(--space-0); }
.ml-auto { margin-left: auto; }
.mr-0 { margin-right: var(--space-0); }
.mr-auto { margin-right: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Padding utilities */
.p-0 { padding: var(--space-0); }
.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-5 { padding: var(--space-5); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }
.p-10 { padding: var(--space-10); }
.p-12 { padding: var(--space-12); }
.p-16 { padding: var(--space-16); }

/* Padding directional */
.pt-0 { padding-top: var(--space-0); }
.pt-4 { padding-top: var(--space-4); }
.pt-6 { padding-top: var(--space-6); }
.pt-8 { padding-top: var(--space-8); }

.pb-0 { padding-bottom: var(--space-0); }
.pb-4 { padding-bottom: var(--space-4); }
.pb-6 { padding-bottom: var(--space-6); }
.pb-8 { padding-bottom: var(--space-8); }

.px-0 { padding-left: var(--space-0); padding-right: var(--space-0); }
.px-2 { padding-left: var(--space-2); padding-right: var(--space-2); }
.px-3 { padding-left: var(--space-3); padding-right: var(--space-3); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }
.px-8 { padding-left: var(--space-8); padding-right: var(--space-8); }

.py-0 { padding-top: var(--space-0); padding-bottom: var(--space-0); }
.py-2 { padding-top: var(--space-2); padding-bottom: var(--space-2); }
.py-3 { padding-top: var(--space-3); padding-bottom: var(--space-3); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-6 { padding-top: var(--space-6); padding-bottom: var(--space-6); }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }

/* ===== LAYOUT UTILITIES ===== */
/* Display */
.d-none { display: none; }
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

/* Flexbox utilities */
.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }

.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.items-stretch { align-items: stretch; }

.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

.flex-1 { flex: 1; }
.flex-auto { flex: auto; }
.flex-none { flex: none; }

/* Gap utilities */
.gap-0 { gap: var(--space-0); }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* ===== TEXT UTILITIES ===== */
/* Font sizes */
.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-xl); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }
.text-3xl { font-size: var(--text-3xl); }
.text-4xl { font-size: var(--text-4xl); }
.text-5xl { font-size: var(--text-5xl); }
.text-6xl { font-size: var(--text-6xl); }

/* Font weights */
.font-light { font-weight: var(--font-light); }
.font-normal { font-weight: var(--font-normal); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }

/* Text colors */
.text-gray-900 { color: var(--gray-900); }
.text-gray-700 { color: var(--gray-700); }
.text-gray-500 { color: var(--gray-500); }
.text-gray-400 { color: var(--gray-400); }
.text-primary { color: var(--primary-red); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-error { color: var(--error); }
.text-info { color: var(--info); }

/* Text alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-justify { text-align: justify; }

/* Text transform */
.uppercase { text-transform: uppercase; }
.lowercase { text-transform: lowercase; }
.capitalize { text-transform: capitalize; }

/* Text decoration */
.underline { text-decoration: underline; }
.no-underline { text-decoration: none; }

/* ===== BACKGROUND UTILITIES ===== */
.bg-white { background-color: var(--bg-white); }
.bg-subtle { background-color: var(--bg-subtle); }
.bg-hover { background-color: var(--bg-hover); }
.bg-gray-50 { background-color: var(--gray-50); }
.bg-gray-100 { background-color: var(--gray-100); }
.bg-primary { background-color: var(--primary-red); }
.bg-success { background-color: var(--success); }
.bg-warning { background-color: var(--warning); }
.bg-error { background-color: var(--error); }

/* ===== BORDER UTILITIES ===== */
.border { border: 1px solid var(--gray-200); }
.border-0 { border: 0; }
.border-t { border-top: 1px solid var(--gray-200); }
.border-r { border-right: 1px solid var(--gray-200); }
.border-b { border-bottom: 1px solid var(--gray-200); }
.border-l { border-left: 1px solid var(--gray-200); }

.border-gray-200 { border-color: var(--gray-200); }
.border-gray-300 { border-color: var(--gray-300); }
.border-primary { border-color: var(--primary-red); }

/* Border radius */
.rounded-none { border-radius: 0; }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: 9999px; }

/* ===== SHADOW UTILITIES ===== */
.shadow-none { box-shadow: none; }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

/* ===== WIDTH & HEIGHT UTILITIES ===== */
.w-auto { width: auto; }
.w-full { width: 100%; }
.w-1\/2 { width: 50%; }
.w-1\/3 { width: 33.333333%; }
.w-2\/3 { width: 66.666667%; }
.w-1\/4 { width: 25%; }
.w-3\/4 { width: 75%; }

.h-auto { height: auto; }
.h-full { height: 100%; }
.h-screen { height: 100vh; }

.min-h-0 { min-height: 0; }
.min-h-full { min-height: 100%; }
.min-h-screen { min-height: 100vh; }

.max-w-xs { max-width: 320px; }
.max-w-sm { max-width: 384px; }
.max-w-md { max-width: 448px; }
.max-w-lg { max-width: 512px; }
.max-w-xl { max-width: 576px; }
.max-w-2xl { max-width: 672px; }
.max-w-3xl { max-width: 768px; }
.max-w-4xl { max-width: 896px; }
.max-w-5xl { max-width: 1024px; }
.max-w-6xl { max-width: 1152px; }
.max-w-7xl { max-width: 1280px; }
.max-w-full { max-width: 100%; }

/* ===== POSITION UTILITIES ===== */
.static { position: static; }
.fixed { position: fixed; }
.absolute { position: absolute; }
.relative { position: relative; }
.sticky { position: sticky; }

.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.top-0 { top: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }
.left-0 { left: 0; }

/* ===== OVERFLOW UTILITIES ===== */
.overflow-auto { overflow: auto; }
.overflow-hidden { overflow: hidden; }
.overflow-visible { overflow: visible; }
.overflow-scroll { overflow: scroll; }

.overflow-x-auto { overflow-x: auto; }
.overflow-x-hidden { overflow-x: hidden; }
.overflow-y-auto { overflow-y: auto; }
.overflow-y-hidden { overflow-y: hidden; }

/* ===== VISIBILITY UTILITIES ===== */
.visible { visibility: visible; }
.invisible { visibility: hidden; }

/* ===== CURSOR UTILITIES ===== */
.cursor-auto { cursor: auto; }
.cursor-default { cursor: default; }
.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }

/* ===== TRANSITION UTILITIES ===== */
.transition-none { transition: none; }
.transition-all { transition: all var(--transition-fast); }
.transition-colors { transition: color var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast); }
.transition-transform { transition: transform var(--transition-fast); }

/* ===== HOVER UTILITIES ===== */
.hover\:bg-gray-50:hover { background-color: var(--gray-50); }
.hover\:bg-gray-100:hover { background-color: var(--gray-100); }
.hover\:bg-primary:hover { background-color: var(--primary-red); }
.hover\:text-primary:hover { color: var(--primary-red); }
.hover\:border-primary:hover { border-color: var(--primary-red); }
.hover\:shadow-md:hover { box-shadow: var(--shadow-md); }
.hover\:scale-105:hover { transform: scale(1.05); }

/* ===== FOCUS UTILITIES ===== */
.focus\:outline-none:focus { outline: none; }
.focus\:ring:focus { 
    outline: none;
    box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.1);
}
.focus\:border-primary:focus { border-color: var(--primary-red); }

/* ===== RESPONSIVE UTILITIES ===== */
@media (min-width: 640px) {
    .sm\:block { display: block; }
    .sm\:hidden { display: none; }
    .sm\:flex { display: flex; }
    .sm\:grid { display: grid; }
    .sm\:text-left { text-align: left; }
    .sm\:text-center { text-align: center; }
}

@media (min-width: 768px) {
    .md\:block { display: block; }
    .md\:hidden { display: none; }
    .md\:flex { display: flex; }
    .md\:grid { display: grid; }
    .md\:text-left { text-align: left; }
    .md\:text-center { text-align: center; }
    .md\:w-1\/2 { width: 50%; }
    .md\:w-1\/3 { width: 33.333333%; }
    .md\:w-2\/3 { width: 66.666667%; }
}

@media (min-width: 1024px) {
    .lg\:block { display: block; }
    .lg\:hidden { display: none; }
    .lg\:flex { display: flex; }
    .lg\:grid { display: grid; }
    .lg\:text-left { text-align: left; }
    .lg\:text-center { text-align: center; }
    .lg\:w-1\/4 { width: 25%; }
    .lg\:w-1\/3 { width: 33.333333%; }
    .lg\:w-1\/2 { width: 50%; }
    .lg\:w-2\/3 { width: 66.666667%; }
    .lg\:w-3\/4 { width: 75%; }
}

@media (min-width: 1280px) {
    .xl\:block { display: block; }
    .xl\:hidden { display: none; }
    .xl\:flex { display: flex; }
    .xl\:grid { display: grid; }
}

/* ===== ACCESSIBILITY HELPERS ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.not-sr-only {
    position: static;
    width: auto;
    height: auto;
    padding: 0;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

/* Focus visible for better accessibility */
.focus-visible\:outline:focus-visible {
    outline: 2px solid var(--primary-red);
    outline-offset: 2px;
}

/* ===== PRINT UTILITIES ===== */
@media print {
    .print\:hidden { display: none !important; }
    .print\:block { display: block !important; }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
    .motion-reduce\:transition-none {
        transition: none !important;
    }
    .motion-reduce\:animate-none {
        animation: none !important;
    }
}/* InsightLearn WASM - Component Library
 * Version: 1.6.5-dev
 * Date: 2025-11-17
 * Description: Reusable UI components (buttons, forms, cards, navigation, loading states)
 */

/* ================================
 * 1. BUTTON COMPONENTS
 * ================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--radius-md);
    font-weight: var(--font-semibold);
    font-size: var(--text-base);
    line-height: 1.5;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-base);
    user-select: none;
    white-space: nowrap;
}

.btn:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 4px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Button Variants */
.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: white;
    color: var(--color-primary-dark);
    border-color: var(--color-primary);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-primary);
    color: white;
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline:hover:not(:disabled) {
    background: var(--color-primary);
    color: white;
}

.btn-ghost {
    background: transparent;
    color: var(--color-gray-700);
    border: none;
}

.btn-ghost:hover:not(:disabled) {
    background: var(--color-gray-100);
}

.btn-danger {
    background: var(--color-danger);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
}

.btn-success {
    background: var(--color-success);
    color: white;
}

.btn-success:hover:not(:disabled) {
    background: #059669;
}

/* Button Sizes */
.btn-sm {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--text-sm);
}

.btn-lg {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--text-lg);
}

.btn-xl {
    padding: var(--spacing-5) var(--spacing-10);
    font-size: var(--text-xl);
}

/* Button Loading State */
.btn-loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.6s linear infinite;
}

/* Button Group */
.btn-group {
    display: flex;
    gap: var(--spacing-2);
    flex-wrap: wrap;
}

.btn-group-vertical {
    flex-direction: column;
}

/* ================================
 * 2. FORM COMPONENTS
 * ================================ */

.form-group {
    margin-bottom: var(--spacing-5);
}

.form-label {
    display: block;
    font-weight: var(--font-medium);
    margin-bottom: var(--spacing-2);
    color: var(--color-gray-700);
    font-size: var(--text-sm);
}

.form-control {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    line-height: 1.5;
    color: var(--color-text-primary);
    background: white;
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-focus);
}

.form-control:disabled {
    background: var(--color-gray-100);
    cursor: not-allowed;
}

.form-control::placeholder {
    color: var(--color-gray-400);
}

/* Form Validation States */
.form-control.is-valid {
    border-color: var(--color-success);
}

.form-control.is-invalid {
    border-color: var(--color-danger);
}

.invalid-feedback {
    display: block;
    margin-top: var(--spacing-1);
    font-size: var(--text-sm);
    color: var(--color-danger);
}

.valid-feedback {
    display: block;
    margin-top: var(--spacing-1);
    font-size: var(--text-sm);
    color: var(--color-success);
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-3);
}

.form-check-input {
    width: 20px;
    height: 20px;
    cursor: pointer;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.form-check-input:checked {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.form-check-label {
    cursor: pointer;
    font-size: var(--text-sm);
    color: var(--color-gray-700);
}

/* Select */
.form-select {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    background: white;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M10.293 3.293L6 7.586 1.707 3.293A1 1 0 00.293 4.707l5 5a1 1 0 001.414 0l5-5a1 1 0 10-1.414-1.414z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-4) center;
    padding-right: var(--spacing-10);
}

.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-focus);
}

/* ================================
 * 3. CARD COMPONENTS
 * ================================ */

.card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-header {
    padding: var(--spacing-5) var(--spacing-6);
    border-bottom: 1px solid var(--color-border);
}

.card-body {
    padding: var(--spacing-6);
}

.card-footer {
    padding: var(--spacing-5) var(--spacing-6);
    border-top: 1px solid var(--color-border);
    background: var(--color-gray-50);
}

.card-title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--spacing-2);
    color: var(--color-gray-900);
}

.card-text {
    color: var(--color-gray-600);
    line-height: 1.6;
}

/* Course Card Variant */
.course-card {
    display: block;
    text-decoration: none;
    color: inherit;
}

.course-card:hover {
    text-decoration: none;
}

.course-thumbnail {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.course-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin: var(--spacing-3) 0;
    color: var(--color-gray-900);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-instructor {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-2);
}

.course-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-4);
}

.course-price {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--color-primary);
}

.course-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    font-size: var(--text-sm);
    color: var(--color-accent-gold);
}

/* ================================
 * 4. NAVIGATION COMPONENTS
 * ================================ */

/* Breadcrumbs */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    padding: var(--spacing-4) 0;
    list-style: none;
    margin: 0;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: '/';
    padding: 0 var(--spacing-2);
    color: var(--color-gray-400);
}

.breadcrumb-item a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb-item a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.breadcrumb-item.active {
    color: var(--color-gray-600);
}

/* Tabs */
.nav-tabs {
    display: flex;
    border-bottom: 2px solid var(--color-border);
    gap: var(--spacing-4);
}

.nav-tab {
    padding: var(--spacing-3) var(--spacing-4);
    border: none;
    background: transparent;
    color: var(--color-gray-600);
    font-weight: var(--font-medium);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all var(--transition-fast);
}

.nav-tab:hover {
    color: var(--color-primary);
}

.nav-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* Pagination */
.pagination {
    display: flex;
    gap: var(--spacing-2);
    list-style: none;
    padding: 0;
}

.pagination-item {
    display: flex;
}

.pagination-link {
    padding: var(--spacing-2) var(--spacing-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-gray-700);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.pagination-link:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.pagination-link.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.pagination-link:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ================================
 * 5. LOADING STATES
 * ================================ */

/* Skeleton Loader */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-gray-200) 0%,
        var(--color-gray-100) 50%,
        var(--color-gray-200) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

.skeleton-text {
    height: 16px;
    margin-bottom: var(--spacing-2);
}

.skeleton-title {
    height: 24px;
    width: 60%;
    margin-bottom: var(--spacing-3);
}

.skeleton-card {
    height: 300px;
    border-radius: var(--radius-lg);
}

.skeleton-circle {
    border-radius: 50%;
    width: 48px;
    height: 48px;
}

/* Spinner */
.spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid var(--color-gray-200);
    border-radius: 50%;
    border-top-color: var(--color-primary);
    animation: spin 0.8s linear infinite;
}

.spinner-lg {
    width: 48px;
    height: 48px;
    border-width: 4px;
}

/* Loading Container */
.loading-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
}

/* ================================
 * 6. TOAST NOTIFICATIONS
 * ================================ */

.toast {
    position: fixed;
    top: var(--spacing-6);
    right: var(--spacing-6);
    max-width: 400px;
    padding: var(--spacing-4) var(--spacing-5);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    animation: fadeIn 0.3s ease-out;
    z-index: 9999;
}

.toast-success {
    border-left: 4px solid var(--color-success);
}

.toast-error {
    border-left: 4px solid var(--color-danger);
}

.toast-warning {
    border-left: 4px solid var(--color-warning);
}

.toast-info {
    border-left: 4px solid var(--color-info);
}

.toast-icon {
    font-size: var(--text-xl);
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: var(--font-semibold);
    margin-bottom: var(--spacing-1);
}

.toast-message {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

.toast-close {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--color-gray-400);
    font-size: var(--text-lg);
}

/* ================================
 * 7. ALERT COMPONENTS
 * ================================ */

.alert {
    padding: var(--spacing-4) var(--spacing-5);
    border-radius: var(--radius-md);
    border-left: 4px solid;
    margin-bottom: var(--spacing-5);
}

.alert-success {
    background: #d1fae5;
    border-color: var(--color-success);
    color: #065f46;
}

.alert-danger {
    background: #fee2e2;
    border-color: var(--color-danger);
    color: #991b1b;
}

.alert-warning {
    background: #fef3c7;
    border-color: var(--color-warning);
    color: #92400e;
}

.alert-info {
    background: #dbeafe;
    border-color: var(--color-info);
    color: #1e40af;
}

.alert-title {
    font-weight: var(--font-semibold);
    margin-bottom: var(--spacing-2);
}

/* ================================
 * 8. EMPTY STATES
 * ================================ */

.empty-state {
    text-align: center;
    padding: var(--spacing-16) var(--spacing-6);
}

.empty-state i {
    font-size: 64px;
    color: var(--color-gray-300);
    margin-bottom: var(--spacing-4);
}

.empty-state h3 {
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-2);
}

.empty-state p {
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-6);
}

/* ================================
 * 9. BADGE COMPONENTS
 * ================================ */

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
}

.badge-primary {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}

.badge-danger {
    background: #fee2e2;
    color: #991b1b;
}

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

.badge-info {
    background: #dbeafe;
    color: #1e40af;
}

/* ================================
 * 10. CATEGORY GRID (SPECIFIC)
 * ================================ */

.category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-6);
    margin-top: var(--spacing-8);
}

.category-card {
    display: block;
    text-align: center;
    padding: var(--spacing-8) var(--spacing-6);
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-decoration: none;
    transition: all var(--transition-base);
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.category-icon {
    font-size: 48px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-4);
}

.category-name {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-2);
}

.category-count {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

/* Course Grid (Categories page) */
.course-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-6);
    margin-top: var(--spacing-8);
}

/* Responsive Grid Layouts */
@media (max-width: 1024px) {
    .category-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .course-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-4);
    }

    .course-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .category-grid {
        grid-template-columns: 1fr;
    }
}
/**
 * Connection Handler Styles
 * User-friendly connection error handling for Blazor Server
 */

/* Connection Modal */
.connection-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.connection-modal.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.connection-modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(17, 24, 39, 0.8);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.connection-modal-content {
    position: relative;
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
    max-width: 400px;
    width: 90%;
    margin: 0 1rem;
    transform: translateY(0);
    transition: transform 0.3s ease;
}

.connection-modal.hidden .connection-modal-content {
    transform: translateY(-20px);
}

/* Connection Icon */
.connection-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    border-radius: 50%;
    color: white;
    font-size: 2rem;
}

.connection-icon-wifi {
    animation: pulse 2s infinite;
}

.connection-icon-error {
    color: #dc2626;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.7; }
    100% { opacity: 1; }
}

/* Connection Text */
.connection-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 0.5rem;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.connection-message {
    color: #6b7280;
    font-size: 1rem;
    line-height: 1.5;
    margin-bottom: 2rem;
}

.connection-message small {
    display: block;
    margin-top: 0.5rem;
    color: #9ca3af;
    font-size: 0.875rem;
}

/* Progress Bar */
.connection-progress {
    margin-bottom: 2rem;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: #f3f4f6;
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    border-radius: 3px;
    width: 0%;
    transition: width 2s ease;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(200%); }
}

/* Connection Actions */
.connection-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1rem;
}

.connection-actions.hidden {
    display: none;
}

.connection-actions .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.connection-actions .btn-primary {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    color: white;
}

.connection-actions .btn-primary:hover {
    background: linear-gradient(135deg, #b91c1c, #991b1b);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}

.connection-actions .btn-outline {
    background: white;
    color: #6b7280;
    border: 2px solid #e5e7eb;
}

.connection-actions .btn-outline:hover {
    border-color: #dc2626;
    color: #dc2626;
    transform: translateY(-2px);
}

/* Offline Notification */
.offline-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    background: #374151;
    color: white;
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.offline-notification.show {
    transform: translateX(0);
}

.offline-content {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
}

.offline-content i {
    color: #fbbf24;
}

/* Mobile Responsiveness */
@media (max-width: 480px) {
    .connection-modal-content {
        padding: 1.5rem;
        margin: 0 0.5rem;
    }
    
    .connection-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .connection-title {
        font-size: 1.25rem;
    }
    
    .connection-message {
        font-size: 0.875rem;
    }
    
    .connection-actions {
        flex-direction: column;
    }
    
    .connection-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .offline-notification {
        top: 10px;
        right: 10px;
        left: 10px;
        transform: translateY(-100%);
    }
    
    .offline-notification.show {
        transform: translateY(0);
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .connection-modal-content {
        background: #1f2937;
        color: #f9fafb;
    }
    
    .connection-title {
        color: #f9fafb;
    }
    
    .connection-message {
        color: #d1d5db;
    }
    
    .connection-actions .btn-outline {
        background: #1f2937;
        color: #d1d5db;
        border-color: #374151;
    }
    
    .connection-actions .btn-outline:hover {
        border-color: #dc2626;
        color: #dc2626;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .connection-modal-content {
        border: 3px solid #000;
    }
    
    .connection-actions .btn {
        border-width: 2px;
    }
    
    .connection-actions .btn-outline {
        border-color: #000;
        color: #000;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .connection-modal,
    .connection-modal-content,
    .progress-fill,
    .offline-notification {
        transition: none;
    }
    
    .connection-icon-wifi {
        animation: none;
    }
    
    .progress-fill::after {
        animation: none;
    }
}/* ===== CRITICAL: Base HTML/Body for sticky header support ===== */
html, body {
    /* CRITICAL: Allow vertical scroll for sticky to work */
    overflow-x: hidden;  /* Prevent horizontal scroll only */
    overflow-y: auto !important;  /* MUST allow vertical scroll */

    /* CRITICAL: NO transform or perspective - breaks sticky */
    transform: none !important;
    perspective: none !important;

    /* Height MUST be auto to allow content to scroll */
    height: auto !important;
    min-height: 100vh;

    /* Typography */
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

/* CRITICAL: Force Blazor root container to not break sticky */
#app {
    overflow: visible !important;
    transform: none !important;
    perspective: none !important;
    height: auto !important;
    min-height: 100vh !important;
    display: flex !important;
    flex-direction: column !important;
}

h1:focus {
    outline: none;
}

a, .btn-link {
    color: #0071c1;
}

.btn-primary {
    color: #fff;
    background-color: #1b6ec2;
    border-color: #1861ac;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

.content {
    padding-top: 1.1rem;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid red;
}

.validation-message {
    color: red;
}

#blazor-error-ui {
    background: lightyellow;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

    #blazor-error-ui .dismiss {
        cursor: pointer;
        position: absolute;
        right: 0.75rem;
        top: 0.5rem;
    }

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.loading-progress {
    position: relative;
    display: block;
    width: 8rem;
    height: 8rem;
    margin: 20vh auto 1rem auto;
}

    .loading-progress circle {
        fill: none;
        stroke: #e0e0e0;
        stroke-width: 0.6rem;
        transform-origin: 50% 50%;
        transform: rotate(-90deg);
    }

        .loading-progress circle:last-child {
            stroke: #1b6ec2;
            stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
            transition: stroke-dasharray 0.05s ease-in-out;
        }

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: bold;
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
}

    .loading-progress-text:after {
        content: var(--blazor-load-percentage-text, "Loading");
    }

code {
    color: #c02d76;
}
/* =============================================================================
   ACCESSIBILITY CSS - WCAG 2.1 AA Compliance
   InsightLearn v2.1.0-dev
   Sprint 2 PageSpeed Optimization (A1, A2, A3)
   ============================================================================= */

/* =============================================================================
   1. FOCUS INDICATORS - Visible focus for keyboard navigation (WCAG 2.4.7)
   ============================================================================= */

/* Default focus ring - high contrast for all focusable elements */
:focus {
    outline: 2px solid #0066cc;
    outline-offset: 2px;
}

/* Focus-visible for keyboard only (not mouse clicks) */
:focus:not(:focus-visible) {
    outline: none;
}

:focus-visible {
    outline: 3px solid #0066cc;
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.25);
}

/* Enhanced focus for buttons */
button:focus-visible,
.btn:focus-visible,
a.btn:focus-visible {
    outline: 3px solid #0066cc;
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.3);
    transition: box-shadow 0.15s ease-in-out;
}

/* Enhanced focus for form inputs */
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.form-control:focus-visible {
    outline: 2px solid #0066cc;
    outline-offset: 1px;
    border-color: #0066cc;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.2);
}

/* Focus for links */
a:focus-visible {
    outline: 2px solid #0066cc;
    outline-offset: 2px;
    border-radius: 2px;
}

/* Skip link focus */
.skip-link:focus {
    position: fixed;
    top: 10px;
    left: 10px;
    z-index: 100000;
    padding: 12px 24px;
    background-color: #0066cc;
    color: #ffffff;
    font-weight: 600;
    text-decoration: none;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* =============================================================================
   2. COLOR CONTRAST FIXES - WCAG AA (4.5:1 for text, 3:1 for large text)
   ============================================================================= */

/* Fix low contrast text colors */
.text-secondary,
.text-muted {
    color: #595959 !important; /* Contrast ratio 7:1 against white */
}

/* Fix placeholder contrast */
::placeholder {
    color: #6b7280; /* Contrast ratio 4.5:1 */
    opacity: 1;
}

/* Fix light gray text on white backgrounds */
.footer-link,
.footer-description {
    color: #9ca3af; /* Light on dark background is OK */
}

/* Fix category item text for better readability */
.category-item span {
    color: #1f2937; /* Near-black for maximum contrast */
}

/* Fix rating stars - ensure visible on any background */
.rating-stars .star {
    color: #f59e0b; /* Gold color with good contrast */
}

.rating-stars .star.empty {
    color: #9ca3af; /* Gray with sufficient contrast */
}

/* Fix badge text contrast */
.course-badge {
    font-weight: 600;
}

.course-badge.bestseller {
    background-color: #f59e0b;
    color: #1f2937; /* Dark text on gold background for 7:1 contrast */
}

.course-badge.new {
    background-color: #10b981;
    color: #ffffff; /* White on green for 4.5:1 contrast */
}

.course-badge.hot {
    background-color: #ef4444;
    color: #ffffff; /* White on red for 4.5:1 contrast */
}

/* Fix button text contrast */
.btn-outline {
    color: #1f2937;
    border-color: #6b7280;
}

.btn-outline:hover {
    background-color: #1f2937;
    color: #ffffff;
}

/* Fix form label contrast */
.form-label {
    color: #1f2937;
    font-weight: 500;
}

/* Fix validation message contrast */
.field-validation-error,
.validation-message {
    color: #dc2626; /* Red with 4.5:1 contrast against white */
    font-weight: 500;
}

/* Fix cart badge contrast */
.cart-badge {
    background-color: #dc2626;
    color: #ffffff;
    font-weight: 600;
}

/* =============================================================================
   3. SCREEN READER UTILITIES
   ============================================================================= */

/* Visually hidden but accessible to screen readers */
.sr-only,
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Show on focus for skip links */
.sr-only-focusable:focus,
.sr-only-focusable:active {
    position: static;
    width: auto;
    height: auto;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

/* =============================================================================
   4. MOTION PREFERENCES - Respect prefers-reduced-motion
   ============================================================================= */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    /* Disable parallax and floating animations */
    .hero-floating-elements,
    .floating-card,
    .particle {
        animation: none !important;
        transform: none !important;
    }
}

/* =============================================================================
   5. HIGH CONTRAST MODE SUPPORT
   ============================================================================= */

@media (prefers-contrast: more) {
    /* Increase all borders */
    button,
    input,
    select,
    textarea,
    .btn,
    .card {
        border-width: 2px;
        border-style: solid;
    }

    /* Force high contrast colors */
    :focus-visible {
        outline-width: 4px;
        outline-color: #000000;
    }

    /* Increase text contrast */
    body {
        color: #000000;
    }

    a {
        color: #0000ee;
        text-decoration: underline;
    }

    a:visited {
        color: #551a8b;
    }
}

/* =============================================================================
   6. INTERACTIVE ELEMENT MINIMUM SIZE (WCAG 2.5.5 - 44x44px touch target)
   ============================================================================= */

/* Ensure minimum touch target size for mobile */
@media (max-width: 768px) {
    button,
    a.btn,
    .nav-link,
    .dropdown-item,
    input[type="checkbox"],
    input[type="radio"] {
        min-height: 44px;
        min-width: 44px;
    }

    /* Increase tap area for icons */
    .icon-btn,
    .cart-btn,
    .user-menu-trigger {
        padding: 10px;
    }
}

/* =============================================================================
   7. ICON-ONLY BUTTON IMPROVEMENTS
   ============================================================================= */

/* Ensure icon-only buttons have visible text alternative */
[aria-label]::before {
    /* Screen readers will read aria-label */
}

/* Icon button styles */
.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    padding: 8px;
    border-radius: 8px;
    transition: background-color 0.15s ease;
}

.icon-btn:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.icon-btn:focus-visible {
    outline: 3px solid #0066cc;
    outline-offset: 2px;
}

/* Password toggle button accessibility */
.password-toggle-btn {
    min-width: 44px;
    min-height: 44px;
}

/* =============================================================================
   8. LINK UNDERLINES FOR DISTINGUISHABILITY (WCAG 1.4.1)
   ============================================================================= */

/* Ensure links are distinguishable from text */
.content a:not(.btn):not(.card):not(.course-card) {
    text-decoration: underline;
    text-underline-offset: 2px;
}

.content a:not(.btn):not(.card):not(.course-card):hover {
    text-decoration-thickness: 2px;
}

/* =============================================================================
   9. ERROR STATE ACCESSIBILITY
   ============================================================================= */

/* Error messages with icon indicator */
.field-validation-error::before,
.validation-message::before {
    content: "⚠ ";
    font-weight: bold;
}

/* Error input styling */
input.invalid,
input:invalid:not(:placeholder-shown),
.form-control.is-invalid {
    border-color: #dc2626;
    border-width: 2px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23dc2626' viewBox='0 0 16 16'%3E%3Cpath d='M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z'/%3E%3Cpath d='M7.002 11a1 1 0 1 1 2 0 1 1 0 0 1-2 0zM7.1 4.995a.905.905 0 1 1 1.8 0l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 4.995z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 40px;
}

/* =============================================================================
   10. TABLE ACCESSIBILITY
   ============================================================================= */

/* Table headers should be distinguishable */
table th {
    font-weight: 600;
    background-color: #f3f4f6;
    text-align: left;
}

/* Alternating row colors for readability */
table tbody tr:nth-child(even) {
    background-color: #f9fafb;
}

/* Table focus */
table:focus-within {
    outline: 2px solid #0066cc;
    outline-offset: 2px;
}

/* =============================================================================
   11. LOADING STATES ACCESSIBILITY
   ============================================================================= */

/* Announce loading to screen readers */
[aria-busy="true"]::after {
    content: "";
    /* Screen reader will announce via aria-busy */
}

/* Loading spinner should not rely on color alone */
.spinner,
.loading-spinner {
    border-width: 3px;
    border-style: solid;
}
/* ========================================
   RESPONSIVE.CSS - Global Mobile Responsive Styles
   Gestisce la compatibilità mobile per tutte le pagine

   Version: 1.3.6
   Date: 2025-10-26
   Author: Claude Code + InsightLearn Team
   ======================================== */

/* ========================================
   ROOT & VARIABLES
   ======================================== */
:root {
    --mobile-padding: 1rem;
    --tablet-padding: 1.5rem;
    --desktop-padding: 2rem;
    --header-height: 60px;
    --header-height-mobile: 56px;
}

/* ========================================
   BASE RESPONSIVE UTILITIES
   ======================================== */
* {
    box-sizing: border-box;
}

html {
    overflow-x: hidden;
    width: 100%;
}

body {
    overflow-x: hidden;
    width: 100%;
    min-width: 320px; /* Minimo per smartphone */
}

/* ========================================
   CONTAINER & LAYOUT RESPONSIVE
   ======================================== */
.container, .container-fluid {
    width: 100%;
    padding-right: var(--mobile-padding);
    padding-left: var(--mobile-padding);
    margin-right: auto;
    margin-left: auto;
}

/* ========================================
   TYPOGRAPHY RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    h1 {
        font-size: 1.75rem !important;
        line-height: 1.2;
    }

    h2 {
        font-size: 1.5rem !important;
        line-height: 1.3;
    }

    h3 {
        font-size: 1.25rem !important;
        line-height: 1.4;
    }

    h4 {
        font-size: 1.1rem !important;
        line-height: 1.4;
    }

    h5, h6 {
        font-size: 1rem !important;
        line-height: 1.5;
    }

    p, li, span {
        font-size: 0.9rem;
        line-height: 1.6;
    }
}

/* ========================================
   BUTTONS RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .btn {
        padding: 0.65rem 1rem;
        font-size: 0.9rem;
        width: 100%;
        margin-bottom: 0.5rem;
    }

    .btn-group {
        display: flex;
        flex-direction: column;
        width: 100%;
    }

    .btn-group .btn {
        border-radius: 0.25rem !important;
        margin-bottom: 0.5rem;
    }
}

/* ========================================
   FORMS RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .form-control, .form-select {
        font-size: 16px !important; /* Previene zoom su iOS */
        padding: 0.75rem;
    }

    .form-label {
        font-size: 0.9rem;
        font-weight: 600;
    }

    .form-row {
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }

    .form-group {
        margin-bottom: 1rem;
    }
}

/* ========================================
   TABLES RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .table-responsive {
        display: block;
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    table {
        font-size: 0.85rem;
    }

    th, td {
        padding: 0.5rem !important;
        white-space: nowrap;
    }

    /* Stack table su mobile per tabelle semplici */
    .table-stack thead {
        display: none;
    }

    .table-stack tr {
        display: block;
        margin-bottom: 1rem;
        border: 1px solid #dee2e6;
        border-radius: 0.25rem;
    }

    .table-stack td {
        display: flex;
        justify-content: space-between;
        padding: 0.75rem !important;
        border: none;
        border-bottom: 1px solid #dee2e6;
    }

    .table-stack td:before {
        content: attr(data-label);
        font-weight: bold;
        margin-right: 1rem;
    }
}

/* ========================================
   CARDS RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .card {
        margin-bottom: 1rem;
    }

    .card-body {
        padding: 1rem;
    }

    .card-columns {
        column-count: 1 !important;
    }

    .row > [class*='col-'] {
        margin-bottom: 1rem;
    }
}

/* ========================================
   NAVIGATION RESPONSIVE
   ======================================== */

/* CRITICAL: Protect sticky header from responsive overrides */
.main-header {
    position: -webkit-sticky !important;  /* Safari */
    position: sticky !important;
    top: 0 !important;
    z-index: 10001 !important;

    /* CRITICAL: NO transform/perspective on sticky element */
    transform: none !important;
    perspective: none !important;

    /* CRITICAL: Ensure no parent breaks sticky */
    isolation: isolate;
}

/* CRITICAL: Container must NOT be sticky - only parent .main-header */
.main-header-container {
    position: relative !important;  /* MUST be relative, NOT sticky */
    /* RIMOSSO: top: auto !important; - Non necessario */
    z-index: inherit !important;  /* Inherit from parent */
    overflow: visible !important;  /* MUST be visible */

    /* CRITICAL: NO transform/perspective */
    transform: none !important;
    perspective: none !important;
}

@media (max-width: 768px) {
    .navbar {
        padding: 0.5rem 1rem;
    }

    .navbar-brand {
        font-size: 1.1rem;
    }

    .navbar-toggler {
        padding: 0.25rem 0.5rem;
        font-size: 1rem;
    }

    .navbar-nav {
        padding: 1rem 0;
    }

    .navbar-nav .nav-link {
        padding: 0.75rem 0;
        font-size: 1rem;
    }

    /* Sidebar navigation */
    .sidebar {
        width: 100%;
        position: fixed;
        top: var(--header-height-mobile);
        left: -100%;
        height: calc(100vh - var(--header-height-mobile));
        transition: left 0.3s ease;
        z-index: 1040;
        background: white;
        box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    }

    .sidebar.show {
        left: 0;
    }

    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0,0,0,0.5);
        z-index: 1039;
    }

    .sidebar-overlay.show {
        display: block;
    }
}

/* ========================================
   MODALS RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .modal-dialog {
        margin: 0.5rem;
        max-width: calc(100% - 1rem);
    }

    .modal-content {
        border-radius: 0.5rem;
    }

    .modal-header, .modal-footer {
        padding: 1rem;
    }

    .modal-body {
        padding: 1rem;
        max-height: calc(100vh - 200px);
        overflow-y: auto;
    }

    .modal-fullscreen-sm-down {
        width: 100vw;
        max-width: none;
        height: 100%;
        margin: 0;
    }

    .modal-fullscreen-sm-down .modal-content {
        height: 100%;
        border: 0;
        border-radius: 0;
    }
}

/* ========================================
   GRID SYSTEM RESPONSIVE
   ======================================== */
@media (max-width: 576px) {
    .row {
        margin-right: -0.5rem;
        margin-left: -0.5rem;
    }

    .row > * {
        padding-right: 0.5rem;
        padding-left: 0.5rem;
    }

    /* Force stacking su mobile */
    .col-sm, .col-sm-1, .col-sm-2, .col-sm-3, .col-sm-4,
    .col-sm-5, .col-sm-6, .col-sm-7, .col-sm-8, .col-sm-9,
    .col-sm-10, .col-sm-11, .col-sm-12,
    .col-md, .col-md-1, .col-md-2, .col-md-3, .col-md-4,
    .col-md-5, .col-md-6, .col-md-7, .col-md-8, .col-md-9,
    .col-md-10, .col-md-11, .col-md-12,
    .col-lg, .col-lg-1, .col-lg-2, .col-lg-3, .col-lg-4,
    .col-lg-5, .col-lg-6, .col-lg-7, .col-lg-8, .col-lg-9,
    .col-lg-10, .col-lg-11, .col-lg-12 {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

/* ========================================
   IMAGES & MEDIA RESPONSIVE
   ======================================== */
img, video, iframe {
    max-width: 100%;
    height: auto;
}

@media (max-width: 768px) {
    .img-fluid {
        width: 100%;
        height: auto;
    }

    iframe {
        width: 100%;
        min-height: 300px;
    }
}

/* ========================================
   SPACING UTILITIES RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .p-5 { padding: 2rem !important; }
    .p-4 { padding: 1.5rem !important; }
    .p-3 { padding: 1rem !important; }

    .px-5 { padding-right: 2rem !important; padding-left: 2rem !important; }
    .px-4 { padding-right: 1.5rem !important; padding-left: 1.5rem !important; }
    .px-3 { padding-right: 1rem !important; padding-left: 1rem !important; }

    .py-5 { padding-top: 2rem !important; padding-bottom: 2rem !important; }
    .py-4 { padding-top: 1.5rem !important; padding-bottom: 1.5rem !important; }
    .py-3 { padding-top: 1rem !important; padding-bottom: 1rem !important; }

    .m-5 { margin: 2rem !important; }
    .m-4 { margin: 1.5rem !important; }
    .m-3 { margin: 1rem !important; }

    .mx-auto { margin-left: auto !important; margin-right: auto !important; }

    .gap-5 { gap: 2rem !important; }
    .gap-4 { gap: 1.5rem !important; }
    .gap-3 { gap: 1rem !important; }
}

/* ========================================
   TEXT ALIGNMENT RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .text-sm-center { text-align: center !important; }
    .text-sm-left { text-align: left !important; }
    .text-sm-right { text-align: right !important; }
}

/* ========================================
   DISPLAY UTILITIES RESPONSIVE
   ======================================== */
@media (max-width: 576px) {
    .d-sm-none { display: none !important; }
    .d-sm-block { display: block !important; }
    .d-sm-flex { display: flex !important; }
    .d-sm-inline { display: inline !important; }
    .d-sm-inline-block { display: inline-block !important; }
}

@media (max-width: 768px) {
    .d-md-none { display: none !important; }
    .d-md-block { display: block !important; }
    .d-md-flex { display: flex !important; }
    .d-md-inline { display: inline !important; }
    .d-md-inline-block { display: inline-block !important; }
}

@media (max-width: 992px) {
    .d-lg-none { display: none !important; }
    .d-lg-block { display: block !important; }
    .d-lg-flex { display: flex !important; }
}

/* ========================================
   FLEX UTILITIES RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .flex-md-column { flex-direction: column !important; }
    .flex-md-row { flex-direction: row !important; }
    .flex-md-wrap { flex-wrap: wrap !important; }
    .justify-content-md-center { justify-content: center !important; }
    .align-items-md-center { align-items: center !important; }
}

/* ========================================
   OVERFLOW HANDLING
   ======================================== */
@media (max-width: 768px) {
    .overflow-auto-mobile {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Previene overflow orizzontale */
    .no-overflow-x {
        overflow-x: hidden !important;
    }
}

/* ========================================
   TOUCH OPTIMIZATION
   ======================================== */
@media (max-width: 768px) {
    /* Aumenta area touch per link e pulsanti */
    a, button, .btn, .nav-link {
        min-height: 44px; /* Apple HIG raccomandazione */
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    /* Smooth scrolling */
    * {
        -webkit-tap-highlight-color: rgba(0,0,0,0.1);
        -webkit-touch-callout: none;
    }

    /* Previene zoom accidentale */
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="number"],
    input[type="tel"],
    textarea,
    select {
        font-size: 16px !important;
    }
}

/* ========================================
   LOADING & SPINNERS RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .loading-progress {
        width: 6rem;
        height: 6rem;
    }

    .spinner-border {
        width: 2rem;
        height: 2rem;
    }
}

/* ========================================
   ALERTS & TOASTS RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .alert {
        font-size: 0.9rem;
        padding: 0.75rem 1rem;
    }

    .toast {
        max-width: calc(100vw - 2rem);
        margin: 0.5rem;
    }
}

/* ========================================
   SPECIFIC PAGE FIXES
   ======================================== */

/* Dashboard responsive */
@media (max-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr !important;
    }

    .dashboard-card {
        margin-bottom: 1rem;
    }

    .stat-cards {
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }
}

/* Login/Register pages responsive */
@media (max-width: 768px) {
    .auth-container {
        padding: 1rem;
        min-height: 100vh;
    }

    .auth-card {
        margin: 0;
        border-radius: 0;
        box-shadow: none;
    }

    .auth-form {
        padding: 1.5rem 1rem;
    }
}

/* Homepage responsive */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 1rem !important;
        min-height: auto !important;
    }

    .hero-title {
        font-size: 2rem !important;
    }

    .hero-subtitle {
        font-size: 1.1rem !important;
    }

    .features-grid {
        grid-template-columns: 1fr !important;
    }
}

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {
    .no-print {
        display: none !important;
    }

    .navbar, .sidebar, .footer, .chatbot-container {
        display: none !important;
    }

    body {
        font-size: 12pt;
        line-height: 1.5;
    }

    h1, h2, h3, h4, h5, h6 {
        page-break-after: avoid;
    }

    table, figure {
        page-break-inside: avoid;
    }
}

/* ========================================
   ACCESSIBILITY IMPROVEMENTS
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .btn {
        border: 2px solid currentColor;
    }

    .card {
        border: 2px solid currentColor;
    }
}

/* ========================================
   LANDSCAPE ORIENTATION FIX
   ======================================== */
@media (max-width: 768px) and (orientation: landscape) {
    .modal-dialog {
        max-height: 90vh;
    }

    .modal-body {
        max-height: calc(90vh - 120px);
        overflow-y: auto;
    }
}
/* ========================================
   MOBILE OPTIMIZATIONS CSS
   Version: 1.1.0 | Date: 2025-12-22
   ======================================== */

/* CRITICAL: Force proper viewport scaling */
html {
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

/* Prevent horizontal scroll on mobile */
html, body {
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

/* Ensure all content respects viewport */
*, *::before, *::after {
    box-sizing: border-box;
}

:root {
    --mobile-safe-area-top: env(safe-area-inset-top, 0px);
    --mobile-safe-area-bottom: env(safe-area-inset-bottom, 0px);
    --mobile-safe-area-left: env(safe-area-inset-left, 0px);
    --mobile-safe-area-right: env(safe-area-inset-right, 0px);
    --touch-target-min: 44px;
    --header-height-mobile: 56px;
    --mobile-nav-width: 280px;
}

/* Device Classes (applied by deviceDetection.js) */
.device-mobile {
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
}

.touch-device { cursor: default; }
.touch-device input, .touch-device textarea { -webkit-user-select: text; user-select: text; }

/* CRITICAL: Force responsive images and media */
img, video, iframe, embed, object {
    max-width: 100%;
    height: auto;
}

/* Prevent content overflow */
@media (max-width: 767px) {
    .container, .container-fluid, .row, [class*="col-"] {
        max-width: 100% !important;
        padding-left: 12px !important;
        padding-right: 12px !important;
    }

    /* Force text wrapping */
    p, h1, h2, h3, h4, h5, h6, span, a, li, td, th {
        word-wrap: break-word;
        overflow-wrap: break-word;
        hyphens: auto;
    }

    /* Prevent tables from overflowing */
    table {
        display: block;
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Force pre/code to wrap */
    pre, code {
        white-space: pre-wrap;
        word-wrap: break-word;
        max-width: 100%;
    }
}

/* Mobile Header */
@media (max-width: 767px) {
    .main-header { height: var(--header-height-mobile) !important; }
    .main-header-container {
        height: var(--header-height-mobile) !important;
        grid-template-columns: auto 1fr auto !important;
        padding: 0 12px !important;
        gap: 8px !important;
    }
    .header-search-section { display: none !important; }
    .logo-image { height: 28px !important; }
    .logo-text { font-size: 16px !important; }
    .auth-buttons .btn { padding: 8px 12px !important; font-size: 13px !important; }
    .auth-buttons .btn i { display: none !important; }
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    width: var(--touch-target-min);
    height: var(--touch-target-min);
    border: none;
    background: transparent;
    cursor: pointer;
}

@media (max-width: 767px) {
    .mobile-menu-toggle { display: flex; align-items: center; justify-content: center; }
}

.mobile-menu-toggle .hamburger {
    width: 24px; height: 18px;
    display: flex; flex-direction: column; justify-content: space-between;
}

.mobile-menu-toggle .hamburger span {
    display: block; width: 100%; height: 2px;
    background-color: var(--text-primary, #1c1d1f);
    border-radius: 2px; transition: all 0.3s ease;
}

.mobile-menu-toggle.active .hamburger span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.mobile-menu-toggle.active .hamburger span:nth-child(2) { opacity: 0; }
.mobile-menu-toggle.active .hamburger span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* Mobile Nav Overlay */
.mobile-nav-overlay {
    position: fixed; inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    opacity: 0; visibility: hidden;
    transition: all 0.3s ease;
    z-index: 9998;
}
.mobile-nav-overlay.active { opacity: 1; visibility: visible; }

/* Mobile Nav Panel */
.mobile-nav-panel {
    position: fixed; top: 0; left: 0; bottom: 0;
    width: var(--mobile-nav-width); max-width: 85vw;
    background: #fff;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 9999;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}
.mobile-nav-panel.active { transform: translateX(0); }

.mobile-nav-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 20px; border-bottom: 1px solid #e5e7eb;
}

.mobile-nav-close {
    width: var(--touch-target-min); height: var(--touch-target-min);
    display: flex; align-items: center; justify-content: center;
    border: none; background: transparent;
    font-size: 24px; color: #6b7280; cursor: pointer;
}

.mobile-nav-search { padding: 16px 20px; border-bottom: 1px solid #e5e7eb; }
.mobile-nav-search .search-input {
    width: 100%; height: 48px; padding: 0 16px;
    border: 1px solid #e5e7eb; border-radius: 8px;
    font-size: 16px !important; background: #f9fafb;
}

.mobile-nav-item {
    display: flex; align-items: center; gap: 12px;
    padding: 14px 20px; color: #1c1d1f;
    text-decoration: none; font-size: 15px; font-weight: 500;
    min-height: var(--touch-target-min);
}
.mobile-nav-item:hover { background: #f3f4f6; }
.mobile-nav-item i { width: 24px; text-align: center; font-size: 18px; color: #6b7280; }
.mobile-nav-divider { height: 1px; background: #e5e7eb; margin: 8px 20px; }
.mobile-nav-section-title {
    padding: 16px 20px 8px; font-size: 12px; font-weight: 600;
    text-transform: uppercase; color: #6b7280;
}

/* Mobile Forms */
@media (max-width: 767px) {
    input, textarea, select { font-size: 16px !important; }
    .form-control, .form-select { min-height: 48px; padding: 12px 16px; }
    .btn { width: 100%; min-height: 48px; justify-content: center; }
    .btn-group { flex-direction: column; width: 100%; }
    .btn-group .btn { border-radius: 8px !important; margin-bottom: 8px; }
}

/* Mobile Cards */
@media (max-width: 767px) {
    .courses-grid, .categories-grid, .features-grid { grid-template-columns: 1fr !important; }
}

/* Mobile Modals */
@media (max-width: 767px) {
    .modal-dialog { margin: 0 !important; max-width: 100% !important; height: 100% !important; }
    .modal-content { border-radius: 0 !important; height: 100%; }
    .modal-body { flex: 1; overflow-y: auto; -webkit-overflow-scrolling: touch; }
}

/* Mobile Dropdowns */
@media (max-width: 767px) {
    .dropdown-menu, .categories-menu, .user-dropdown {
        position: fixed !important; bottom: 0 !important; left: 0 !important; right: 0 !important;
        width: 100% !important; max-height: 70vh !important;
        border-radius: 16px 16px 0 0 !important;
        transform: translateY(100%) !important;
        transition: transform 0.3s ease !important;
    }
    .dropdown-menu.show, .categories-menu.show, .user-dropdown.show { transform: translateY(0) !important; }
    .categories-grid { grid-template-columns: repeat(2, 1fr) !important; padding: 16px !important; }
}

/* Mobile Bottom Nav */
.mobile-bottom-nav {
    display: none; position: fixed; bottom: 0; left: 0; right: 0;
    height: calc(56px + var(--mobile-safe-area-bottom));
    padding-bottom: var(--mobile-safe-area-bottom);
    background: #fff; border-top: 1px solid #e5e7eb;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 9000;
}

@media (max-width: 767px) {
    .mobile-bottom-nav { display: flex; justify-content: space-around; align-items: flex-start; padding-top: 4px; }
    .main-content { padding-bottom: calc(56px + var(--mobile-safe-area-bottom) + 16px) !important; }
}

.mobile-bottom-nav-item {
    display: flex; flex-direction: column; align-items: center;
    padding: 6px 12px; color: #6b7280;
    text-decoration: none; font-size: 11px; font-weight: 500;
}
.mobile-bottom-nav-item i { font-size: 20px; margin-bottom: 4px; }
.mobile-bottom-nav-item.active { color: var(--primary-color, #6C3CE1); }

/* Landscape */
@media (max-width: 896px) and (orientation: landscape) {
    .main-header, .main-header-container { height: 48px !important; }
    .mobile-bottom-nav { display: none !important; }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .mobile-nav-panel, .mobile-nav-overlay, .dropdown-menu { transition: none !important; }
}

/* ========================================
   RESPONSIVE TABS COMPONENT
   v2.2.2-dev - Adaptive Tab Navigation
   ======================================== */

/* Base Container */
.responsive-tabs {
    --tab-primary: var(--primary-color, #6C3CE1);
    --tab-text: var(--text-primary, #1c1d1f);
    --tab-text-muted: var(--text-secondary, #6b7280);
    --tab-border: var(--border-color, #e5e7eb);
    --tab-bg: var(--bg-primary, #ffffff);
    --tab-bg-hover: var(--bg-secondary, #f3f4f6);
    --tab-radius: 8px;
    --tab-transition: all 0.2s ease;
}

/* ===== DESKTOP TABS ===== */
.tabs-desktop {
    position: relative;
    border-bottom: 2px solid var(--tab-border);
}

.tabs-desktop-container {
    display: flex;
    flex-wrap: nowrap;
    gap: 4px;
}

.tab-item-desktop {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: transparent;
    border: none;
    font-size: 14px;
    font-weight: 500;
    color: var(--tab-text-muted);
    cursor: pointer;
    transition: var(--tab-transition);
    position: relative;
    white-space: nowrap;
}

.tab-item-desktop:hover {
    color: var(--tab-text);
    background: var(--tab-bg-hover);
}

.tab-item-desktop.active {
    color: var(--tab-primary);
}

.tab-item-desktop .tab-icon {
    font-size: 16px;
}

.tab-item-desktop .tab-badge {
    background: var(--tab-primary);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

/* Animated Indicator */
.tabs-indicator {
    position: absolute;
    bottom: -2px;
    height: 2px;
    background: var(--tab-primary);
    transition: left 0.3s ease, width 0.3s ease;
}

/* ===== TABLET TABS ===== */
.tabs-tablet {
    background: var(--tab-bg);
    border-bottom: 1px solid var(--tab-border);
    overflow: hidden;
}

.tabs-tablet-container {
    display: flex;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 2px;
    padding: 4px;
}

.tabs-tablet-container::-webkit-scrollbar {
    display: none;
}

.tab-item-tablet {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 14px;
    background: transparent;
    border: none;
    border-radius: var(--tab-radius);
    font-size: 13px;
    font-weight: 500;
    color: var(--tab-text-muted);
    cursor: pointer;
    transition: var(--tab-transition);
    flex-shrink: 0;
    white-space: nowrap;
}

.tab-item-tablet:hover {
    background: var(--tab-bg-hover);
    color: var(--tab-text);
}

.tab-item-tablet.active {
    background: rgba(164, 53, 240, 0.1);
    color: var(--tab-primary);
}

.tab-item-tablet i {
    font-size: 16px;
}

/* Hide text on narrow tablets, show only icons */
@media (min-width: 768px) and (max-width: 899px) {
    .tab-item-tablet .tab-text {
        display: none;
    }
    .tab-item-tablet {
        padding: 10px 12px;
    }
}

@media (min-width: 900px) and (max-width: 1023px) {
    .tab-item-tablet .tab-text {
        display: inline;
    }
}

.tab-item-tablet .tab-badge {
    background: var(--tab-primary);
    color: #fff;
    font-size: 10px;
    font-weight: 600;
    padding: 2px 5px;
    border-radius: 8px;
    min-width: 16px;
    text-align: center;
}

/* ===== MOBILE TABS ===== */
.tabs-mobile {
    background: var(--tab-bg);
    border-bottom: 1px solid var(--tab-border);
    position: relative;
}

.tabs-mobile-scroll {
    display: flex;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 4px;
    padding: 8px 12px;
}

.tabs-mobile-scroll::-webkit-scrollbar {
    display: none;
}

.tab-item-mobile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 16px;
    background: transparent;
    border: none;
    border-radius: var(--tab-radius);
    font-size: 11px;
    font-weight: 500;
    color: var(--tab-text-muted);
    cursor: pointer;
    transition: var(--tab-transition);
    flex-shrink: 0;
    min-width: var(--touch-target-min, 44px);
    min-height: var(--touch-target-min, 44px);
}

.tab-item-mobile:hover,
.tab-item-mobile:active {
    background: var(--tab-bg-hover);
}

.tab-item-mobile.active {
    color: var(--tab-primary);
    background: rgba(164, 53, 240, 0.08);
}

.tab-item-mobile i {
    font-size: 18px;
}

.tab-label-mobile {
    font-size: 10px;
    text-align: center;
    max-width: 60px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tab-item-mobile .tab-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    background: #ef4444;
    color: #fff;
    font-size: 9px;
    font-weight: 700;
    padding: 1px 4px;
    border-radius: 6px;
    min-width: 14px;
    text-align: center;
}

/* ===== FIXED BOTTOM TABS FOR MOBILE ===== */
.tabs-mobile-fixed {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--tab-bg);
    border-top: 1px solid var(--tab-border);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.08);
    z-index: 8998;
    padding-bottom: var(--mobile-safe-area-bottom, 0px);
}

.tabs-mobile-fixed .tabs-mobile-scroll {
    justify-content: space-around;
    padding: 6px 8px;
}

/* ===== DEVICE-SPECIFIC CLASSES ===== */
.responsive-tabs-mobile {
    /* Mobile specific overrides */
}

.responsive-tabs-tablet {
    /* Tablet specific overrides */
}

.responsive-tabs-desktop {
    /* Desktop specific overrides */
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
    .tabs-indicator,
    .tab-item-desktop,
    .tab-item-tablet,
    .tab-item-mobile {
        transition: none !important;
    }
}
/*
 * ============================================
 * MOBILE UX CRITICAL FIXES - B2B/IaaS Platform
 * Version: 2.3.0 | Date: 2025-12-23
 * ============================================
 *
 * This file addresses critical mobile UX issues:
 * 1. Auth buttons floating white box issue
 * 2. Text contrast on colored backgrounds
 * 3. Hero section readability
 * 4. Stats labels visibility
 * 5. Content padding/spacing
 * 6. B2B Navigation (Solutions, Developers, Pricing)
 * 7. Developer Console mobile experience
 * ============================================
 */

/* ============================================
   1. AUTH BUTTONS - REMOVE WHITE BOX ON MOBILE
   ============================================ */

@media (max-width: 768px) {
    /* Remove the white box container from auth buttons on mobile */
    .auth-buttons {
        background: transparent !important;
        border: none !important;
        padding: 0 !important;
        border-radius: 0 !important;
        gap: 8px;
    }

    /* Compact login button - text only */
    .auth-buttons .btn-outline {
        background: transparent;
        color: var(--text-primary, #1c1d1f);
        border: none;
        padding: 8px 12px;
        font-size: 14px;
        font-weight: 600;
        min-height: 40px;
    }

    .auth-buttons .btn-outline:hover,
    .auth-buttons .btn-outline:active {
        background: rgba(0, 0, 0, 0.05);
        color: var(--primary-color, #dc2626);
    }

    /* Compact sign up button - primary CTA */
    .auth-buttons .btn-primary {
        background: var(--primary-color, #dc2626);
        color: white;
        padding: 8px 14px;
        font-size: 14px;
        font-weight: 600;
        min-height: 40px;
        border-radius: 8px;
        box-shadow: 0 2px 4px rgba(220, 38, 38, 0.2);
    }

    .auth-buttons .btn-primary:hover,
    .auth-buttons .btn-primary:active {
        background: var(--primary-hover, #b91c1c);
        transform: scale(0.98);
    }

    /* Hide icons in auth buttons on mobile to save space */
    .auth-buttons .btn i {
        display: none !important;
    }
}

/* Extra small screens - stack auth buttons or hide login */
@media (max-width: 380px) {
    .auth-buttons {
        gap: 4px;
    }

    .auth-buttons .btn-outline {
        padding: 6px 8px;
        font-size: 13px;
    }

    .auth-buttons .btn-primary {
        padding: 6px 10px;
        font-size: 13px;
    }
}

/* ============================================
   2. TEXT CONTRAST ON COLORED BACKGROUNDS
   ============================================ */

/* Global rule: Force white text on dark/colored backgrounds */
.hero-section,
.hero-section *,
[class*="bg-primary"],
[class*="bg-gradient"],
.gradient-bg,
section[style*="background: linear-gradient"],
section[style*="background-color: #6"],
section[style*="background-color: #7"],
section[style*="background-color: #8"],
section[style*="background-color: #9"] {
    --text-on-dark: #ffffff;
    --text-muted-on-dark: rgba(255, 255, 255, 0.9);
}

/* Hero Section - Ensure ALL text is readable */
.hero-section {
    color: #ffffff;
}

.hero-section .hero-title,
.hero-section h1,
.hero-section h2,
.hero-section h3 {
    color: #ffffff !important;
}

.hero-section .hero-subtitle,
.hero-section p {
    color: rgba(255, 255, 255, 0.95) !important;
}

/* Stats in hero section - CRITICAL FIX */
.hero-section .stat-item {
    color: #ffffff;
}

.hero-section .stat-number {
    color: #ffffff !important;
    font-weight: 800;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.hero-section .stat-label {
    color: rgba(255, 255, 255, 0.95) !important;
    opacity: 1 !important; /* Override the 0.9 opacity that makes text invisible */
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* ============================================
   3. STATS SECTION - IMPROVED VISIBILITY
   ============================================ */

/* Stats on colored backgrounds */
.hero-stats .stat-item {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 16px 20px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

@media (max-width: 768px) {
    .hero-stats {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
        width: 100%;
    }

    .hero-stats .stat-item {
        padding: 12px 8px;
        text-align: center;
        align-items: center;
    }

    .hero-stats .stat-number {
        font-size: 1.5rem !important;
    }

    .hero-stats .stat-label {
        font-size: 0.7rem !important;
        line-height: 1.3;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .hero-stats .stat-item {
        flex-direction: row;
        justify-content: space-between;
        padding: 12px 16px;
    }

    .hero-stats .stat-number {
        font-size: 1.75rem !important;
    }

    .hero-stats .stat-label {
        font-size: 0.85rem !important;
    }
}

/* ============================================
   4. CONTENT PADDING & SPACING
   ============================================ */

@media (max-width: 768px) {
    /* Main content area - Add breathing room */
    .main-content {
        padding-left: 0 !important;
        padding-right: 0 !important;
    }

    /* Content container inside main */
    .content-container {
        padding-left: 0;
        padding-right: 0;
    }

    /* Section containers - Horizontal padding */
    .hero-container,
    .section-container,
    .stats-container,
    .steps-grid,
    .features-grid,
    .courses-grid {
        padding-left: 16px !important;
        padding-right: 16px !important;
    }

    /* Ensure no content touches edges */
    .new-home-page > section {
        padding-left: 0;
        padding-right: 0;
        overflow-x: hidden;
    }

    .new-home-page > section > * {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-container,
    .section-container,
    .stats-container {
        padding-left: 12px !important;
        padding-right: 12px !important;
    }
}

/* ============================================
   5. BUTTON SIZES - MOBILE OPTIMIZATION
   ============================================ */

@media (max-width: 768px) {
    /* Hero CTA buttons - More reasonable size */
    .hero-cta {
        flex-direction: column;
        gap: 12px;
        width: 100%;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 300px;
        padding: 14px 24px !important;
        font-size: 1rem !important;
        justify-content: center;
    }

    .hero-cta .btn-primary {
        order: 1; /* Primary button first */
    }

    .hero-cta .btn-secondary {
        order: 2;
        background: rgba(255, 255, 255, 0.15);
        border: 1px solid rgba(255, 255, 255, 0.4);
    }

    /* Reduce btn-large on mobile */
    .btn-large {
        padding: 14px 24px !important;
        font-size: 1rem !important;
    }
}

/* ============================================
   6. HERO SECTION - MOBILE LAYOUT
   ============================================ */

@media (max-width: 768px) {
    .hero-section {
        min-height: auto;
        padding: 80px 0 60px; /* Account for fixed header */
    }

    .hero-container {
        grid-template-columns: 1fr !important;
        gap: 32px;
        text-align: center;
    }

    .hero-content {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .hero-title {
        font-size: clamp(1.75rem, 6vw, 2.5rem) !important;
        line-height: 1.2;
        margin-bottom: 16px;
    }

    .hero-subtitle {
        font-size: 1rem !important;
        margin-bottom: 24px;
        max-width: 100%;
    }

    /* Hero visual cards - simplified on mobile */
    .hero-visual {
        display: none; /* Hide floating cards on mobile for cleaner look */
    }

    .hero-cta {
        align-items: center;
    }
}

@media (max-width: 480px) {
    .hero-section {
        padding: 70px 0 40px;
    }

    .hero-title {
        font-size: 1.5rem !important;
    }

    .hero-subtitle {
        font-size: 0.9rem !important;
    }
}

/* ============================================
   7. STEP CARDS & FEATURE CARDS
   ============================================ */

@media (max-width: 768px) {
    .steps-grid,
    .features-grid {
        grid-template-columns: 1fr !important;
        gap: 16px;
    }

    .step-card,
    .feature-card {
        padding: 20px;
    }

    .step-number {
        font-size: 2rem;
    }

    .step-title,
    .feature-title {
        font-size: 1.1rem;
    }

    .step-description,
    .feature-description {
        font-size: 0.9rem;
        line-height: 1.5;
    }
}

/* ============================================
   8. STATS BOXES - MOBILE OPTIMIZATION
   ============================================ */

@media (max-width: 768px) {
    .stats-section {
        padding: 40px 0;
    }

    .stats-container {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 16px;
    }

    .stat-box {
        padding: 20px 16px;
    }

    .stat-icon {
        font-size: 1.5rem;
        margin-bottom: 8px;
    }

    .stat-value {
        font-size: 1.5rem;
        font-weight: 700;
    }

    .stat-description {
        font-size: 0.75rem;
        line-height: 1.3;
    }
}

@media (max-width: 480px) {
    .stats-container {
        grid-template-columns: 1fr !important;
    }

    .stat-box {
        flex-direction: row;
        gap: 16px;
        text-align: left;
    }

    .stat-icon {
        font-size: 1.25rem;
    }

    .stat-value {
        font-size: 1.25rem;
    }
}

/* ============================================
   9. FOOTER - MOBILE OPTIMIZATION
   ============================================ */

@media (max-width: 768px) {
    .main-footer {
        padding: 40px 16px 24px !important;
    }

    .footer-content {
        grid-template-columns: 1fr !important;
        gap: 32px;
    }

    .footer-section {
        text-align: center;
    }

    .footer-social {
        justify-content: center;
    }

    .footer-bottom-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .footer-badges {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* ============================================
   10. PREVENT HORIZONTAL SCROLL
   ============================================ */

html, body {
    overflow-x: hidden;
    max-width: 100vw;
}

.new-home-page,
.main-layout,
.main-content {
    overflow-x: hidden;
    max-width: 100%;
}

/* ============================================
   11. TOUCH-FRIENDLY INTERACTIONS
   ============================================ */

@media (max-width: 768px) {
    /* Ensure all interactive elements have proper touch targets */
    button,
    a,
    .btn,
    input[type="submit"],
    input[type="button"] {
        min-height: 44px;
        min-width: 44px;
    }

    /* Remove hover effects that don't work well on touch */
    .btn:hover,
    .card:hover,
    .hero-card:hover {
        transform: none;
    }

    /* Active state for touch feedback */
    .btn:active {
        transform: scale(0.98);
        opacity: 0.9;
    }
}

/* ============================================
   12. HAMBURGER MENU MOBILE INTEGRATION
   ============================================ */

@media (max-width: 768px) {
    /* Ensure hamburger menu is visible */
    .mobile-menu-toggle {
        display: flex !important;
        order: 99; /* Push to end */
    }

    /* Hide categories dropdown on mobile - use hamburger menu instead */
    .categories-dropdown,
    .categories-trigger {
        display: none !important;
    }
}

/* ============================================
   13. SECTION TITLES - MOBILE READABILITY
   ============================================ */

@media (max-width: 768px) {
    .section-title {
        font-size: 1.5rem !important;
        line-height: 1.3;
        margin-bottom: 8px;
    }

    .section-subtitle {
        font-size: 0.9rem !important;
        margin-bottom: 24px;
    }

    .section-header {
        margin-bottom: 32px;
        text-align: center;
    }
}

/* ============================================
   14. LIVE INDICATOR - MOBILE POSITION
   ============================================ */

@media (max-width: 768px) {
    .live-indicator {
        position: static;
        transform: none;
        margin: 24px auto 0;
        width: fit-content;
    }
}

/* ============================================
   15. REDUCED MOTION SUPPORT
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .hero-card {
        animation: none;
    }
}

/* ============================================
   16. MOBILE MENU PANEL (v2.2.5)
   ============================================ */

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
    display: none; /* Hidden on desktop */
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: var(--text-primary, #1c1d1f);
    font-size: 20px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.mobile-menu-toggle:hover,
.mobile-menu-toggle:focus {
    background: rgba(0, 0, 0, 0.05);
}

.mobile-menu-toggle:active {
    transform: scale(0.95);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex !important;
    }
}

/* Mobile Menu Backdrop */
.mobile-menu-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99998;
    opacity: 1;
    transition: opacity 0.3s ease;
}

/* Mobile Menu Panel */
.mobile-menu-panel {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 320px;
    height: 100vh;
    height: 100dvh;
    background: #ffffff;
    z-index: 99999;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
    transition: right 0.3s ease;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.mobile-menu-panel.open {
    right: 0;
}

/* Mobile Menu Header */
.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid #e4e8eb;
    background: #f7f9fa;
}

.mobile-menu-title {
    font-size: 18px;
    font-weight: 600;
    color: #1c1d1f;
}

.mobile-menu-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    border-radius: 50%;
    color: #6b7280;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.mobile-menu-close:hover,
.mobile-menu-close:focus {
    background: rgba(0, 0, 0, 0.05);
    color: #1c1d1f;
}

/* Mobile Menu Content */
.mobile-menu-content {
    flex: 1;
    padding: 16px 0;
    overflow-y: auto;
}

/* Mobile Search */
.mobile-search-form {
    display: flex;
    padding: 0 16px 16px;
    gap: 8px;
}

.mobile-search-input {
    flex: 1;
    height: 44px;
    padding: 0 16px;
    border: 1px solid #e4e8eb;
    border-radius: 8px;
    font-size: 15px;
    background: #f7f9fa;
    transition: all 0.2s ease;
}

.mobile-search-input:focus {
    outline: none;
    border-color: var(--primary-color, #6C3CE1);
    background: #ffffff;
}

.mobile-search-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color, #6C3CE1);
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.mobile-search-btn:hover {
    background: var(--primary-hover, #5a2dc7);
}

/* Mobile Navigation Links */
.mobile-nav-section {
    padding: 8px 0;
    border-bottom: 1px solid #f2f3f5;
}

.mobile-nav-section:last-child {
    border-bottom: none;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 20px;
    color: #1c1d1f;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: background-color 0.2s ease;
}

.mobile-nav-link:hover,
.mobile-nav-link:focus {
    background: #f7f9fa;
    color: var(--primary-color, #6C3CE1);
    text-decoration: none;
}

.mobile-nav-link i {
    width: 20px;
    text-align: center;
    color: #6b7280;
    font-size: 16px;
}

.mobile-nav-link:hover i,
.mobile-nav-link:focus i {
    color: var(--primary-color, #6C3CE1);
}

/* Mobile User Section */
.mobile-user-section {
    background: #f7f9fa;
}

.mobile-user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid #e4e8eb;
}

.mobile-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-color, #6C3CE1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 16px;
}

.mobile-user-name {
    font-size: 15px;
    font-weight: 600;
    color: #1c1d1f;
}

/* Mobile Auth Section */
.mobile-auth-section {
    padding: 16px 20px !important;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mobile-auth-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 20px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
}

.mobile-login-btn {
    background: transparent;
    border: 2px solid #e4e8eb;
    color: #1c1d1f;
}

.mobile-login-btn:hover {
    border-color: var(--primary-color, #6C3CE1);
    color: var(--primary-color, #6C3CE1);
    text-decoration: none;
}

.mobile-signup-btn {
    background: var(--primary-color, #6C3CE1);
    border: none;
    color: white;
}

.mobile-signup-btn:hover {
    background: var(--primary-hover, #5a2dc7);
    color: white;
    text-decoration: none;
}

/* Mobile Logout Button */
.mobile-logout-btn {
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    color: #dc2626 !important;
}

.mobile-logout-btn:hover {
    background: #fef2f2;
}

.mobile-logout-btn i {
    color: #dc2626 !important;
}

/* ============================================
   17. GDPR COOKIE CONSENT - BOTTOM BAR (v2.2.9)
   Converts from full-screen blocking modal to discrete bottom bar
   ============================================ */

/* Override the full-screen overlay to be a bottom bar */
.cookie-wall-overlay {
    position: fixed !important;
    top: auto !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    height: auto !important;
    max-height: none !important;
    min-height: auto !important;
    background: transparent !important;
    display: flex !important;
    align-items: flex-end !important;
    justify-content: center !important;
    z-index: 9999 !important;
    padding: 0 !important;
    overflow: visible !important;
}

/* Remove backdrop blur and dark overlay */
.cookie-wall-overlay::before {
    display: none !important;
}

.cookie-wall-container {
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    padding: 0 !important;
    margin: 0 !important;
    display: flex !important;
    align-items: flex-end !important;
    justify-content: center !important;
}

/* Modal becomes a bottom bar */
.cookie-wall-modal {
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    max-height: none !important;
    min-height: auto !important;
    margin: 0 !important;
    border-radius: 16px 16px 0 0 !important;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15) !important;
    transform: none !important;
    animation: slideUpBar 0.3s ease-out !important;
    overflow: visible !important;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%) !important;
}

@keyframes slideUpBar {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Content layout for bottom bar - Compact Mode */
.cookie-modal-content {
    display: flex !important;
    flex-direction: row !important;
    padding: 16px 24px !important;
    gap: 20px !important;
    align-items: center !important;
    width: 100% !important;
    max-width: 1400px !important;
    margin: 0 auto !important;
}

/* HIDE the AI Avatar section in bottom bar mode - it's too large */
.ai-avatar-section {
    display: none !important;
}

/* Cookie content takes full width */
.cookie-content-section {
    flex: 1 !important;
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 20px !important;
    padding: 0 !important;
    width: 100% !important;
}

/* Compact header */
.cookie-wall-header {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 12px !important;
    flex: 1 !important;
    padding: 0 !important;
    margin: 0 !important;
}

.cookie-icon-wrapper {
    width: 40px !important;
    height: 40px !important;
    min-width: 40px !important;
    margin: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

.cookie-icon {
    font-size: 28px !important;
}

.cookie-wall-title {
    font-size: 16px !important;
    margin: 0 !important;
    white-space: nowrap !important;
    color: #fff !important;
}

.cookie-wall-subtitle {
    display: none !important; /* Hide in compact mode */
}

/* Hide the body content in compact mode */
.cookie-wall-body {
    display: none !important;
}

/* Footer with horizontal buttons */
.cookie-wall-footer {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 12px !important;
    padding: 0 !important;
    margin: 0 !important;
    border-top: none !important;
    background: transparent !important;
}

.cookie-links {
    display: none !important; /* Hide in compact bottom bar */
}

/* Horizontal buttons layout */
.cookie-actions {
    display: flex !important;
    flex-direction: row !important;
    gap: 10px !important;
    flex-wrap: nowrap !important;
    align-items: center !important;
}

/* Compact button styles */
.cookie-actions button {
    padding: 10px 16px !important;
    font-size: 13px !important;
    font-weight: 600 !important;
    border-radius: 8px !important;
    white-space: nowrap !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 6px !important;
    min-height: 40px !important;
    transition: all 0.2s ease !important;
}

/* Reject button - subtle */
.btn-cookie-reject {
    background: rgba(255, 255, 255, 0.1) !important;
    color: #9ca3af !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
}

.btn-cookie-reject:hover {
    background: rgba(255, 255, 255, 0.15) !important;
    color: #fff !important;
}

/* Settings button */
.btn-cookie-settings {
    background: rgba(59, 130, 246, 0.2) !important;
    color: #60a5fa !important;
    border: 1px solid rgba(59, 130, 246, 0.3) !important;
}

.btn-cookie-settings:hover {
    background: rgba(59, 130, 246, 0.3) !important;
}

/* Accept button - prominent */
.btn-cookie-accept {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%) !important;
    color: #fff !important;
    border: none !important;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3) !important;
}

.btn-cookie-accept:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%) !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4) !important;
}

/* Hide button icons in compact mode */
.cookie-actions .btn-icon {
    display: none !important;
}

/* ============================================
   17.1 GDPR BOTTOM BAR - TABLET (768px - 1024px)
   ============================================ */

@media (max-width: 1024px) {
    .cookie-modal-content {
        padding: 14px 20px !important;
        gap: 16px !important;
    }

    .cookie-content-section {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 12px !important;
    }

    .cookie-wall-header {
        justify-content: center !important;
    }

    .cookie-wall-footer {
        justify-content: center !important;
    }
}

/* ============================================
   17.2 GDPR BOTTOM BAR - MOBILE (max 768px)
   ============================================ */

@media (max-width: 768px) {
    .cookie-wall-modal {
        border-radius: 12px 12px 0 0 !important;
    }

    .cookie-modal-content {
        padding: 12px 16px !important;
        flex-direction: column !important;
        gap: 12px !important;
    }

    .cookie-content-section {
        flex-direction: column !important;
        gap: 10px !important;
    }

    .cookie-wall-header {
        flex-direction: row !important;
        justify-content: center !important;
        gap: 10px !important;
    }

    .cookie-icon-wrapper {
        width: 32px !important;
        height: 32px !important;
        min-width: 32px !important;
    }

    .cookie-icon {
        font-size: 24px !important;
    }

    .cookie-wall-title {
        font-size: 14px !important;
    }

    .cookie-actions {
        width: 100% !important;
        justify-content: center !important;
        gap: 8px !important;
    }

    .cookie-actions button {
        padding: 10px 14px !important;
        font-size: 12px !important;
        flex: 1 !important;
        justify-content: center !important;
        min-height: 44px !important; /* Touch-friendly */
    }
}

/* ============================================
   17.3 GDPR BOTTOM BAR - SMALL MOBILE (max 480px)
   ============================================ */

@media (max-width: 480px) {
    .cookie-modal-content {
        padding: 10px 12px !important;
    }

    .cookie-wall-title {
        font-size: 13px !important;
    }

    .cookie-actions button {
        padding: 10px 10px !important;
        font-size: 11px !important;
    }
}

/* ============================================
   17.4 GDPR BOTTOM BAR - VERY SMALL MOBILE (max 360px)
   ============================================ */

@media (max-width: 360px) {
    .cookie-actions {
        flex-wrap: wrap !important;
    }

    .cookie-actions button {
        flex: 1 1 calc(50% - 4px) !important;
        min-width: calc(50% - 4px) !important;
    }

    .btn-cookie-settings {
        order: 3 !important;
        flex: 1 1 100% !important;
    }
}

/* ============================================
   17.5 GDPR BOTTOM BAR - LANDSCAPE MOBILE
   ============================================ */

@media (max-width: 900px) and (orientation: landscape) {
    .cookie-wall-modal {
        max-height: 30vh !important;
    }

    .cookie-modal-content {
        flex-direction: row !important;
        padding: 10px 20px !important;
    }

    .cookie-content-section {
        flex-direction: row !important;
    }

    .cookie-wall-header {
        flex: 1 !important;
    }

    .cookie-wall-footer {
        flex-shrink: 0 !important;
    }
}

/* ============================================
   17.6 GDPR DETAILED SETTINGS - Modal View
   When detailed settings is shown, use full modal
   ============================================ */

/* When detailed settings is shown, revert to modal-like appearance */
.cookie-wall-overlay:has(.cookie-settings-content) {
    background: rgba(0, 0, 0, 0.7) !important;
    backdrop-filter: blur(4px) !important;
    align-items: center !important;
    top: 0 !important;
    height: 100vh !important;
}

.cookie-wall-overlay:has(.cookie-settings-content) .cookie-wall-modal {
    max-width: 600px !important;
    max-height: 80vh !important;
    border-radius: 16px !important;
    margin: 20px !important;
    overflow-y: auto !important;
}

.cookie-wall-overlay:has(.cookie-settings-content) .cookie-modal-content {
    flex-direction: column !important;
    padding: 24px !important;
}

.cookie-wall-overlay:has(.cookie-settings-content) .cookie-content-section {
    flex-direction: column !important;
}

.cookie-wall-overlay:has(.cookie-settings-content) .cookie-wall-header {
    flex-direction: column !important;
    text-align: center !important;
}

.cookie-wall-overlay:has(.cookie-settings-content) .cookie-wall-subtitle {
    display: block !important;
}

.cookie-wall-overlay:has(.cookie-settings-content) .cookie-wall-body {
    display: block !important;
}

.cookie-wall-overlay:has(.cookie-settings-content) .cookie-links {
    display: flex !important;
}

.cookie-wall-overlay:has(.cookie-settings-content) .cookie-wall-footer {
    flex-direction: column !important;
    gap: 16px !important;
    padding-top: 16px !important;
    border-top: 1px solid rgba(255, 255, 255, 0.1) !important;
}

.cookie-wall-overlay:has(.cookie-settings-content) .cookie-actions {
    flex-wrap: wrap !important;
}

.cookie-wall-overlay:has(.cookie-settings-content) .btn-icon {
    display: inline !important;
}

/* Fallback for browsers that don't support :has() - uses explicit class */
.cookie-wall-overlay.settings-open {
    background: rgba(0, 0, 0, 0.7) !important;
    backdrop-filter: blur(4px) !important;
    align-items: center !important;
    top: 0 !important;
    height: 100vh !important;
}

.cookie-wall-overlay.settings-open .cookie-wall-modal {
    background: #1a1a2e !important;
    max-width: 600px !important;
    max-height: 80vh !important;
    border-radius: 16px !important;
    margin: 20px !important;
    overflow-y: auto !important;
}

.cookie-wall-overlay.settings-open .cookie-modal-content {
    flex-direction: column !important;
    padding: 24px !important;
}

.cookie-wall-overlay.settings-open .cookie-content-section {
    flex-direction: column !important;
}

.cookie-wall-overlay.settings-open .cookie-wall-header {
    flex-direction: column !important;
    text-align: center !important;
}

.cookie-wall-overlay.settings-open .cookie-wall-subtitle {
    display: block !important;
}

.cookie-wall-overlay.settings-open .cookie-wall-body {
    display: block !important;
    padding: 24px 32px !important;
    overflow-y: auto !important;
    max-height: 50vh !important;
    background: rgba(255, 255, 255, 0.05) !important;
}

.cookie-wall-overlay.settings-open .cookie-settings-content {
    display: block !important;
    max-height: none !important;
}

.cookie-wall-overlay.settings-open .cookie-categories {
    display: flex !important;
    flex-direction: column !important;
    gap: 16px !important;
}

.cookie-wall-overlay.settings-open .cookie-category {
    background: rgba(255, 255, 255, 0.08) !important;
    border-radius: 12px !important;
    padding: 20px !important;
    border: 1px solid rgba(255, 255, 255, 0.15) !important;
}

.cookie-wall-overlay.settings-open .cookie-category:hover {
    border-color: #6C3CE1 !important;
    box-shadow: 0 4px 12px rgba(164, 53, 240, 0.2) !important;
    background: rgba(255, 255, 255, 0.12) !important;
}

.cookie-wall-overlay.settings-open .category-header {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
}

.cookie-wall-overlay.settings-open .category-info {
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
}

.cookie-wall-overlay.settings-open .category-title {
    font-size: 15px !important;
    font-weight: 600 !important;
    color: #ffffff !important;
    margin: 0 !important;
}

.cookie-wall-overlay.settings-open .category-description {
    font-size: 13px !important;
    color: rgba(255, 255, 255, 0.6) !important;
    margin: 2px 0 0 !important;
}

.cookie-wall-overlay.settings-open .category-details {
    margin-top: 12px !important;
    padding-top: 12px !important;
    border-top: 1px solid rgba(255, 255, 255, 0.1) !important;
    font-size: 13px !important;
    color: rgba(255, 255, 255, 0.6) !important;
    line-height: 1.6 !important;
}

.cookie-wall-overlay.settings-open .category-details p {
    margin: 4px 0 !important;
    color: rgba(255, 255, 255, 0.6) !important;
}

.cookie-wall-overlay.settings-open .category-details strong {
    color: rgba(255, 255, 255, 0.85) !important;
}

.cookie-wall-overlay.settings-open .settings-intro {
    font-size: 14px !important;
    color: rgba(255, 255, 255, 0.7) !important;
    margin: 0 0 20px !important;
    line-height: 1.6 !important;
}

/* Toggle switch styling */
.cookie-wall-overlay.settings-open .cookie-switch {
    position: relative !important;
    display: inline-block !important;
    width: 44px !important;
    height: 24px !important;
    flex-shrink: 0 !important;
}

.cookie-wall-overlay.settings-open .cookie-switch input {
    opacity: 0 !important;
    width: 0 !important;
    height: 0 !important;
}

.cookie-wall-overlay.settings-open .switch-slider {
    position: absolute !important;
    cursor: pointer !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    background-color: #d1d5db !important;
    border-radius: 24px !important;
    transition: 0.3s !important;
}

.cookie-wall-overlay.settings-open .switch-slider::before {
    content: "" !important;
    position: absolute !important;
    height: 18px !important;
    width: 18px !important;
    left: 3px !important;
    bottom: 3px !important;
    background-color: white !important;
    border-radius: 50% !important;
    transition: 0.3s !important;
}

.cookie-wall-overlay.settings-open .cookie-switch input:checked + .switch-slider {
    background-color: #6C3CE1 !important;
}

.cookie-wall-overlay.settings-open .cookie-switch input:checked + .switch-slider::before {
    transform: translateX(20px) !important;
}

.cookie-wall-overlay.settings-open .cookie-switch.disabled .switch-slider {
    background-color: #6C3CE1 !important;
    opacity: 0.6 !important;
    cursor: not-allowed !important;
}

.cookie-wall-overlay.settings-open .cookie-switch.disabled input:checked + .switch-slider::before {
    transform: translateX(20px) !important;
}

.cookie-wall-overlay.settings-open .cookie-links {
    display: flex !important;
}

.cookie-wall-overlay.settings-open .cookie-wall-footer {
    flex-direction: column !important;
    gap: 16px !important;
    padding-top: 16px !important;
    border-top: 1px solid rgba(255, 255, 255, 0.1) !important;
}

.cookie-wall-overlay.settings-open .cookie-actions {
    flex-wrap: wrap !important;
}

.cookie-wall-overlay.settings-open .btn-icon {
    display: inline !important;
}

/* ============================================
   17.7 GDPR HIGH CONTRAST & ACCESSIBILITY
   ============================================ */

@media (prefers-contrast: high) {
    .cookie-wall-modal {
        border: 2px solid #fff !important;
    }

    .cookie-actions button {
        border-width: 2px !important;
    }

    .btn-cookie-accept {
        background: #10b981 !important;
        border: 2px solid #fff !important;
    }
}

/* ============================================
   18. HERO SECTION - INFRASTRUCTURE VISUAL CARDS (v2.2.9)
   Replaces the YAML code block with clean visual cards
   ============================================ */

/* Infrastructure Specs Grid - replaces code-preview */
.infra-specs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    width: 100%;
    max-width: 500px;
}

.infra-spec-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    padding: 20px 16px;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.infra-spec-card:hover {
    transform: translateY(-4px);
    border-color: rgba(164, 53, 240, 0.5);
    box-shadow: 0 8px 30px rgba(164, 53, 240, 0.2);
}

.infra-spec-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    font-size: 24px;
}

.infra-spec-icon.region {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: #fff;
}

.infra-spec-icon.hardware {
    background: linear-gradient(135deg, #6C3CE1 0%, #5a2dc7 100%);
    color: #fff;
}

.infra-spec-icon.compliance {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: #fff;
}

.infra-spec-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 4px;
}

.infra-spec-value {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    line-height: 1.3;
}

/* Mobile responsive for infra cards */
@media (max-width: 768px) {
    .infra-specs-grid {
        grid-template-columns: 1fr;
        gap: 12px;
        max-width: 100%;
    }

    .infra-spec-card {
        display: flex;
        align-items: center;
        gap: 16px;
        padding: 16px 20px;
        text-align: left;
    }

    .infra-spec-icon {
        margin: 0;
        width: 44px;
        height: 44px;
        flex-shrink: 0;
    }

    .infra-spec-content {
        flex: 1;
    }
}

/* Hide the old code-preview when using new visual cards */
.hero-visual .code-preview {
    display: none !important;
}