/* ============================================================
   Admin Operations Console — design tokens & shell styles
   Namespace: .admin-shell  (does not affect public site CSS)
   v4.0.0 — Warm Neutral theme
   ============================================================ */

.admin-shell {
  /* Colors — Warm Neutral theme */
  --admin-bg-base:        #fafaf9;
  --admin-bg-surface:     #ffffff;
  --admin-bg-hover:       #f5f3ff;
  --admin-bg-active:      #f5f3ff;

  --admin-border:         #e7e5e4;
  --admin-border-subtle:  #f3f4f6;
  --admin-border-strong:  #d6d3d1;

  --admin-text-primary:   #1c1917;
  --admin-text-secondary: #44403c;
  --admin-text-muted:     #78716c;
  --admin-text-disabled:  #a8a29e;
  --admin-text-faint:     #d6d3d1;

  --admin-accent:         #7c3aed;
  --admin-accent-hover:   #6d28d9;
  --admin-accent-soft:    #f5f3ff;
  --admin-accent-border:  #ddd6fe;
  --admin-accent-glow:    rgba(124, 58, 237, 0.15);

  --admin-success:        #16a34a;
  --admin-warning:        #d97706;
  --admin-danger:         #dc2626;
  --admin-danger-hover:   #b91c1c;
  --admin-info:           #2563eb;

  /* Typography */
  --admin-font-sans:      'Outfit', -apple-system, 'Segoe UI', sans-serif;
  --admin-font-mono:      'JetBrains Mono', 'Consolas', monospace;
  --admin-fs-xs:          11px;
  --admin-fs-sm:          12px;
  --admin-fs-base:        14px;
  --admin-fs-md:          15px;
  --admin-fs-lg:          18px;
  --admin-fs-xl:          22px;

  /* Spacing */
  --admin-sp-1: 4px;  --admin-sp-2: 8px;   --admin-sp-3: 12px;
  --admin-sp-4: 16px; --admin-sp-5: 24px;  --admin-sp-6: 32px;
  --admin-sp-7: 48px; --admin-sp-8: 64px;

  /* Radius */
  --admin-r-sm: 4px; --admin-r-md: 8px; --admin-r-lg: 12px; --admin-r-xl: 16px;

  /* Shadow */
  --admin-shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --admin-shadow-md: 0 2px 8px rgba(124,58,237,0.15);
  --admin-shadow-lg: 0 8px 24px rgba(0,0,0,0.10);

  /* Layout */
  --admin-topbar-h:    52px;
  --admin-rail-w:      56px;
  --admin-panel-w:     200px;
  --admin-content-max: 1440px;

  /* Motion */
  --admin-easing:    cubic-bezier(0.4, 0, 0.2, 1);
  --admin-dur-fast:  120ms;
  --admin-dur-base:  200ms;
  --admin-dur-slow:  320ms;

  /* Layout grid — 3 colonne: rail | panel | content
     !important necessario: 29 CSS globali (Bootstrap, Tailwind, bundle-admin) caricati
     sullo stesso documento sovrascrivono display e position senza !important */
  display: grid !important;
  grid-template-columns: var(--admin-rail-w) var(--admin-panel-w) 1fr !important;
  grid-template-rows: var(--admin-topbar-h) 1fr !important;
  grid-template-areas: "rail topbar topbar" "rail panel content" !important;
  min-height: 100vh !important;
  background: var(--admin-bg-base);
  color: var(--admin-text-primary);
  font-family: var(--admin-font-sans);
  font-size: var(--admin-fs-base);
  line-height: 1.5;
}

/* a11y: focus rings */
.admin-shell *:focus-visible {
  outline: 2px solid var(--admin-accent);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px var(--admin-accent-glow);
}

/* Topbar */
.admin-shell .admin-topbar {
  grid-area: topbar !important;
  position: sticky !important; top: 0; z-index: 40 !important;
  display: flex !important; align-items: center; gap: var(--admin-sp-3);
  height: var(--admin-topbar-h) !important;
  padding: 0 var(--admin-sp-4);
  background: var(--admin-bg-surface);
  border-bottom: 1px solid var(--admin-border);
  box-shadow: none;
  box-sizing: border-box;
}

/* Content */
.admin-shell .admin-content {
  grid-area: content !important;
  padding: var(--admin-sp-5);
  max-width: var(--admin-content-max);
  width: 100%;
  background: var(--admin-bg-base);
  overflow-y: auto;
}

/* Nav section */
.admin-shell .admin-nav-section { padding: var(--admin-sp-2) 0; }
.admin-shell .admin-nav-section__header {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%;
  padding: var(--admin-sp-2) var(--admin-sp-4);
  background: transparent; border: 0;
  font-family: var(--admin-font-sans);
  font-size: var(--admin-fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--admin-text-muted);
  cursor: pointer;
}
.admin-shell .admin-nav-section__chevron {
  transition: transform var(--admin-dur-base) var(--admin-easing);
}
.admin-shell .admin-nav-section[data-collapsed="true"] .admin-nav-section__chevron {
  transform: rotate(-90deg);
}
.admin-shell .admin-nav-section[data-collapsed="true"] .admin-nav-section__items { display: none; }

/* Nav link */
.admin-shell .admin-nav-link {
  display: flex; align-items: center; gap: var(--admin-sp-3);
  height: 36px;
  padding: 0 var(--admin-sp-4) 0 var(--admin-sp-6);
  color: var(--admin-text-secondary);
  font-size: var(--admin-fs-base);
  font-weight: 500;
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: background var(--admin-dur-fast), color var(--admin-dur-fast);
}
.admin-shell .admin-nav-link__icon { width: 16px; color: var(--admin-text-muted); font-size: 14px; }
.admin-shell .admin-nav-link[aria-current="page"] {
  background: var(--admin-bg-active);
  border-left-color: var(--admin-accent);
  color: var(--admin-accent);
  font-weight: 600;
}
.admin-shell .admin-nav-link[aria-current="page"] .admin-nav-link__icon {
  color: var(--admin-accent);
}
.admin-shell .admin-nav-link:hover {
  background: var(--admin-bg-hover);
  color: var(--admin-text-primary);
}
.admin-shell .admin-nav-link:hover .admin-nav-link__icon {
  color: var(--admin-accent);
}

/* Nav divider */
.admin-shell .admin-nav-divider {
  margin: var(--admin-sp-4) var(--admin-sp-4) var(--admin-sp-2);
  border-top: 1px solid var(--admin-border);
  text-align: center;
  font-size: 10px; text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--admin-text-disabled);
}
.admin-shell .admin-nav-divider span {
  position: relative; top: -8px;
  padding: 0 var(--admin-sp-2);
  background: var(--admin-bg-surface);
}

/* Topbar elements */
.admin-shell .admin-topbar__brand {
  display: flex; align-items: center; gap: var(--admin-sp-2);
  font-weight: 600; color: var(--admin-text-primary);
  text-decoration: none;
}
.admin-shell .admin-topbar__separator { color: var(--admin-text-faint); }
.admin-shell .admin-breadcrumb {
  flex: 1;
  display: flex; align-items: center; gap: var(--admin-sp-2);
  color: var(--admin-text-secondary);
  font-size: var(--admin-fs-sm);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.admin-shell .admin-breadcrumb__sep { color: var(--admin-text-faint); }
.admin-shell .admin-breadcrumb__current {
  color: var(--admin-text-primary);
  font-weight: 600;
}

.admin-shell .admin-icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  background: transparent; border: 0; border-radius: var(--admin-r-md);
  color: var(--admin-text-muted);
  cursor: pointer;
  transition: background var(--admin-dur-fast), color var(--admin-dur-fast);
}
.admin-shell .admin-icon-btn:hover { background: var(--admin-bg-hover); color: var(--admin-text-primary); }
.admin-shell .admin-panel-toggle { opacity: 0.7; font-size: 11px; }
.admin-shell .admin-panel-toggle:hover { opacity: 1; }

.admin-shell .admin-exit-site {
  display: inline-flex; align-items: center; gap: var(--admin-sp-2);
  padding: var(--admin-sp-2) var(--admin-sp-3);
  color: var(--admin-text-secondary);
  text-decoration: none;
  border-radius: var(--admin-r-md);
  transition: background var(--admin-dur-fast), color var(--admin-dur-fast);
}
.admin-shell .admin-exit-site:hover { background: var(--admin-bg-hover); color: var(--admin-text-primary); }

/* User menu */
.admin-shell .admin-user-trigger {
  display: flex; align-items: center; gap: var(--admin-sp-2);
  padding: 0 var(--admin-sp-2);
  background: transparent; border: 0; cursor: pointer;
  border-radius: var(--admin-r-md);
}
.admin-shell .admin-user-avatar {
  width: 32px; height: 32px;
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #7c3aed, #a855f7);
  color: #ffffff;
  font-weight: 700; font-size: var(--admin-fs-sm);
  border-radius: 50%;
}
.admin-shell .admin-user-menu {
  position: absolute; top: calc(var(--admin-topbar-h) + var(--admin-sp-2)); right: var(--admin-sp-4);
  min-width: 240px;
  background: var(--admin-bg-surface);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-r-lg);
  box-shadow: var(--admin-shadow-lg);
  z-index: 50;
  overflow: hidden;
}
.admin-shell .admin-user-menu__header {
  padding: var(--admin-sp-3) var(--admin-sp-4);
  border-bottom: 1px solid var(--admin-border);
}
.admin-shell .admin-user-menu__name { font-weight: 600; color: var(--admin-text-primary); }
.admin-shell .admin-user-menu__role {
  font-size: var(--admin-fs-xs); text-transform: uppercase; letter-spacing: 1px;
  color: var(--admin-accent); margin-top: 2px;
}
.admin-shell .admin-user-menu__item {
  display: flex; align-items: center; gap: var(--admin-sp-2);
  padding: var(--admin-sp-2) var(--admin-sp-4);
  color: var(--admin-text-secondary);
  text-decoration: none;
  background: transparent; border: 0;
  width: 100%; text-align: left;
  cursor: pointer; font-size: var(--admin-fs-base);
}
.admin-shell .admin-user-menu__item:hover {
  background: var(--admin-bg-hover);
  color: var(--admin-text-primary);
}
.admin-shell .admin-user-menu__divider {
  height: 1px; background: var(--admin-border); margin: var(--admin-sp-1) 0;
}
.admin-shell .admin-user-menu__item--danger { color: var(--admin-danger); }
.admin-shell .admin-user-menu__item--danger:hover {
  color: var(--admin-danger-hover);
  background: #fef2f2;
}

/* ── Icon Rail ── */
.admin-shell .admin-rail {
  grid-area: rail !important;
  position: sticky !important; top: 0;
  height: 100vh;
  width: var(--admin-rail-w) !important;
  background: var(--admin-bg-surface);
  border-right: 1px solid var(--admin-border);
  display: flex !important; flex-direction: column !important;
  align-items: center;
  padding: var(--admin-sp-3) 0;
  gap: var(--admin-sp-1);
  z-index: 30 !important;
}

.admin-shell .admin-rail__item {
  width: 36px; height: 36px;
  border-radius: var(--admin-r-md);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  background: transparent; border: 0;
  color: var(--admin-text-muted);
  font-size: 15px;
  transition: background var(--admin-dur-fast) var(--admin-easing),
              color var(--admin-dur-fast) var(--admin-easing);
  position: relative;
}
.admin-shell .admin-rail__item:hover {
  background: var(--admin-bg-hover);
  color: var(--admin-text-primary);
}
.admin-shell .admin-rail__item.active {
  background: linear-gradient(135deg, #7c3aed, #a855f7);
  color: #ffffff;
  box-shadow: var(--admin-shadow-md);
}
.admin-shell .admin-rail__divider {
  width: 24px; height: 1px;
  background: var(--admin-border);
  opacity: 0.5;
  margin: var(--admin-sp-2) auto;
}

/* ── Side Panel ── */
.admin-shell .admin-panel {
  grid-area: panel !important;
  position: sticky !important; top: 0;
  height: 100vh;
  width: var(--admin-panel-w) !important;
  background: var(--admin-bg-surface);
  border-right: 1px solid var(--admin-border);
  display: flex !important; flex-direction: column !important;
  overflow-y: auto;
  overflow-x: hidden;
  transition: width var(--admin-dur-base) var(--admin-easing);
  scrollbar-width: thin;
  scrollbar-color: var(--admin-border) transparent;
}
.admin-shell .admin-panel::-webkit-scrollbar { width: 4px; }
.admin-shell .admin-panel::-webkit-scrollbar-thumb {
  background: var(--admin-border); border-radius: 2px;
}

.admin-shell.panel-collapsed .admin-panel {
  width: 0;
  border-right: 0;
}
.admin-shell.panel-collapsed {
  grid-template-columns: var(--admin-rail-w) 0 1fr;
  grid-template-areas:
    "rail topbar topbar"
    "rail content content";
}

.admin-shell .admin-panel__heading {
  font-size: var(--admin-fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--admin-text-primary);
  padding: var(--admin-sp-4) var(--admin-sp-4) var(--admin-sp-2);
  white-space: nowrap;
}

.admin-shell .admin-panel__link {
  display: flex; align-items: center; gap: var(--admin-sp-2);
  padding: 7px var(--admin-sp-4);
  font-size: var(--admin-fs-base);
  color: var(--admin-text-secondary);
  text-decoration: none;
  border-left: 3px solid transparent;
  white-space: nowrap;
  transition: background var(--admin-dur-fast), color var(--admin-dur-fast);
}
.admin-shell .admin-panel__link:hover {
  background: var(--admin-bg-hover);
  color: var(--admin-text-primary);
}
.admin-shell .admin-panel__link[aria-current="page"] {
  background: var(--admin-bg-active);
  border-left-color: var(--admin-accent);
  color: var(--admin-accent);
  font-weight: 600;
}
.admin-shell .admin-panel__divider {
  height: 1px;
  background: var(--admin-border-subtle);
  margin: var(--admin-sp-2) var(--admin-sp-4);
}
.admin-shell .admin-panel__footer {
  margin-top: auto;
  padding: var(--admin-sp-3) var(--admin-sp-4);
  border-top: 1px solid var(--admin-border);
  font-size: var(--admin-fs-sm);
  color: var(--admin-text-disabled);
}

/* ── Topbar brand ── */
.admin-shell .admin-topbar__brand-icon {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, #7c3aed, #a855f7);
  border-radius: 7px;
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-size: 12px; font-weight: 700;
  flex-shrink: 0;
}
.admin-shell .admin-topbar__workspace {
  background: var(--admin-accent-soft);
  color: var(--admin-accent);
  border: 1px solid var(--admin-accent-border);
  border-radius: 20px;
  padding: 2px 8px;
  font-size: var(--admin-fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.admin-shell .admin-topbar__separator { color: var(--admin-text-faint); }

/* Mobile drawer & responsive */
@media (max-width: 1023px) {
  .admin-shell {
    grid-template-columns: 1fr;
    grid-template-areas: "topbar" "content";
  }
  .admin-shell .admin-rail,
  .admin-shell .admin-panel {
    position: fixed; left: 0; top: 0; z-index: 50;
    height: 100vh;
    display: none;
  }
  .admin-shell.sidebar-open .admin-rail,
  .admin-shell.sidebar-open .admin-panel {
    display: flex;
  }
  .admin-shell.sidebar-open .admin-rail {
    width: var(--admin-rail-w);
    flex-direction: column;
    align-items: center;
  }
  .admin-shell.sidebar-open .admin-panel {
    width: 200px;
    left: var(--admin-rail-w);
    flex-direction: column;
  }
  .admin-shell .admin-backdrop {
    position: fixed; inset: 0; z-index: 45;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
  }
  .admin-shell .admin-content { padding: var(--admin-sp-3); }
}

@media (min-width: 1024px) {
  .admin-shell .admin-hamburger { display: none; }
  .admin-shell .admin-backdrop  { display: none; }
}

/* Command palette */
.admin-shell .admin-cmd-overlay {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(0,0,0,0.4); backdrop-filter: blur(6px);
  display: flex; justify-content: center; align-items: flex-start;
  padding-top: 15vh;
}
.admin-shell .admin-cmd-modal {
  width: 560px; max-width: 90vw;
  background: var(--admin-bg-surface);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-r-lg);
  box-shadow: var(--admin-shadow-lg);
  display: flex; flex-direction: column;
  overflow: hidden;
}
.admin-shell .admin-cmd-input {
  width: 100%;
  padding: var(--admin-sp-3) var(--admin-sp-4);
  background: transparent; border: 0; color: var(--admin-text-primary);
  font-family: var(--admin-font-sans); font-size: var(--admin-fs-md);
  border-bottom: 1px solid var(--admin-border);
  outline: 0;
}
.admin-shell .admin-cmd-results { max-height: 400px; overflow-y: auto; }
.admin-shell .admin-cmd-section-label {
  padding: var(--admin-sp-2) var(--admin-sp-4);
  font-size: var(--admin-fs-xs);
  text-transform: uppercase; letter-spacing: 1px;
  color: var(--admin-text-muted);
}
.admin-shell .admin-cmd-item {
  display: flex; align-items: center; gap: var(--admin-sp-3);
  padding: var(--admin-sp-2) var(--admin-sp-4);
  cursor: pointer; color: var(--admin-text-secondary);
}
.admin-shell .admin-cmd-item.active,
.admin-shell .admin-cmd-item:hover {
  background: var(--admin-bg-hover);
  color: var(--admin-text-primary);
}
.admin-shell .admin-cmd-item__route {
  margin-left: auto;
  font-family: var(--admin-font-mono);
  font-size: var(--admin-fs-xs);
  color: var(--admin-text-muted);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .admin-shell *, .admin-shell *::before, .admin-shell *::after {
    transition-duration: 0ms !important;
    animation-duration: 0ms !important;
  }
}