/* ============================================================================
   Visiontek Cloud Backup — Design System (T1.7)
   ============================================================================
   Feuille de style locale du design system (tokens + composants réutilisables).

   Contexte : application PHP natif (pas de build Node). Tailwind est chargé en
   CDN pour les utilitaires de layout ; CETTE feuille fournit les tokens CSS
   (palette, espacements, radii, ombres, typo, dark mode) et les composants
   réutilisables (`.vt-*`) utilisés dans les vues — résolution des duplications
   P2-1 et mise en cohérence du design system.

   Couleurs : thème CLAIR par défaut (dashboard B2B). Tokens sémantiques
   conformes à docs/ux-design-tokens.md (§2) — contrastes WCAG AA garantis.
   Dark Mode : bloc `.dark` prêt (activable), même philosophie.
   ========================================================================== */

/* ----------------------------------------------------------------------------
   1. Tokens — palette & sémantique (thème clair, par défaut)
   -------------------------------------------------------------------------- */
:root {
  /* Surfaces & neutres */
  --background: #f8fafc;
  --surface: #ffffff;
  --surface-muted: #f1f5f9;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --foreground: #0f172a;
  --secondary: #475569;
  --muted-foreground: #64748b;

  /* Marque (primaire, bleu « confiance ») */
  --primary: #2563eb;
  --primary-strong: #1d4ed8;
  --primary-hover: #1d4ed8;
  --primary-active: #1e40af;
  --primary-foreground: #ffffff;

  /* Sémantiques (réservées aux surfaces/pastilles/icônes — jamais en texte brut) */
  --success: #16a34a;
  --success-hover: #15803d;
  --warning: #d97706;
  --warning-hover: #b45309;
  --danger: #dc2626;
  --danger-hover: #b91c1c;
  --info: #0284c7;
  --info-hover: #0369a1;

  /* Textes sémantiques (AA ≥ 4.5:1) */
  --success-fg: #15803d;
  --warning-fg: #92400e;
  --danger-fg: #b91c1c;
  --info-fg: #0369a1;

  /* Fonds doux des badges / alertes (pattern 100/800) */
  --success-soft: #dcfce7;
  --warning-soft: #fef3c7;
  --danger-soft: #fee2e2;
  --info-soft: #e0f2fe;

  /* Typographie */
  --font-body: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: var(--font-body);
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  /* Espacements (base 4px) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Radii */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Ombres */
  --shadow-sm: 0 1px 2px rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px rgb(0 0 0 / 0.05), 0 2px 4px rgb(0 0 0 / 0.04);
  --shadow-lg: 0 10px 15px rgb(0 0 0 / 0.1), 0 4px 6px rgb(0 0 0 / 0.05);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}

/* ----------------------------------------------------------------------------
   2. Dark Mode (optionnel, activable via classe .dark sur <html> ou <body>)
   -------------------------------------------------------------------------- */
.dark {
  --background: #0f172a;
  --surface: #1e293b;
  --surface-muted: #334155;
  --border: #334155;
  --border-strong: #475569;
  --foreground: #f1f5f9;
  --secondary: #cbd5e1;
  --muted-foreground: #94a3b8;
  --primary: #60a5fa;
  --primary-strong: #3b82f6;
  --primary-hover: #60a5fa;
  --primary-active: #2563eb;
  --primary-foreground: #0f172a;
}

/* ----------------------------------------------------------------------------
   3. Base
   -------------------------------------------------------------------------- */
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  color: var(--foreground);
  background-color: var(--background);
  margin: 0;
  line-height: 1.5;
}

/* ----------------------------------------------------------------------------
   4. Accessibilité
   -------------------------------------------------------------------------- */

/* Skip link : premier élément du body, invisible jusqu'au focus */
.vt-skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--primary);
  color: var(--primary-foreground);
  padding: 0.75rem 1rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-weight: 600;
  text-decoration: none;
}
.vt-skip-link:focus {
  left: 0;
}

/* Focus visible : jamais outline-none sans alternative visible */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* x-cloak : masque les éléments Alpine non initialisés */
[x-cloak] { display: none !important; }

/* ----------------------------------------------------------------------------
   5. Composants réutilisables (.vt-*)
   -------------------------------------------------------------------------- */

/* --- Carte --- */
.vt-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

/* --- Boutons --- */
.vt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.25rem;
  min-height: 44px;
  padding: 0.5rem 1rem;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}
.vt-btn:disabled {
  opacity: 0.5;
  pointer-events: none;
}
.vt-btn--primary {
  background-color: var(--primary);
  color: var(--primary-foreground);
}
.vt-btn--primary:hover { background-color: var(--primary-hover); }
.vt-btn--primary:active { background-color: var(--primary-active); }
.vt-btn--danger {
  background-color: var(--danger);
  color: #fff;
}
.vt-btn--danger:hover { background-color: var(--danger-hover); }
.vt-btn--secondary {
  background-color: var(--surface);
  color: var(--foreground);
  border-color: var(--border);
}
.vt-btn--secondary:hover { background-color: var(--surface-muted); }
.vt-btn--ghost {
  background-color: transparent;
  color: var(--foreground);
}
.vt-btn--ghost:hover { background-color: var(--surface-muted); }
.vt-btn--link {
  background-color: transparent;
  color: var(--primary);
  border-color: transparent;
  min-height: auto;
  padding: 0.25rem 0.5rem;
}
.vt-btn--link:hover { text-decoration: underline; }

/* Spinner de chargement (anti double-soumission, P1-5) */
.vt-btn--loading {
  opacity: 0.6;
  pointer-events: none;
}

/* --- Champs de formulaire --- */
.vt-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--foreground);
  margin-bottom: 0.25rem;
}
.vt-input {
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background-color: var(--surface);
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  color: var(--foreground);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.vt-input::placeholder { color: var(--muted-foreground); }
.vt-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgb(37 99 235 / 0.2);
  outline: none;
}
.vt-input:disabled {
  background-color: var(--surface-muted);
  color: var(--muted-foreground);
  opacity: 0.6;
}
.vt-input--error {
  border-color: var(--danger);
}
.vt-input--error:focus { box-shadow: 0 0 0 2px rgb(220 38 38 / 0.2); }
.vt-input--success {
  border-color: var(--success);
}
.vt-input--success:focus { box-shadow: 0 0 0 2px rgb(22 163 74 / 0.2); }

.vt-field-error {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--danger-fg);
}
.vt-field-helper {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

/* --- Badge (pattern fond -100 / texte -800, AA) --- */
.vt-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.125rem 0.625rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.125rem;
  white-space: nowrap;
}
.vt-badge-success  { background-color: var(--success-soft); color: #166534; }
.vt-badge-error    { background-color: var(--danger-soft); color: #b91c1c; }
.vt-badge-warning  { background-color: var(--warning-soft); color: #92400e; }
.vt-badge-info     { background-color: var(--info-soft); color: #0369a1; }
.vt-badge-active   { background-color: var(--success-soft); color: #166534; }
.vt-badge-resolved { background-color: #e2e8f0; color: #475569; }
.vt-badge-neutral  { background-color: #e2e8f0; color: #475569; }

/* --- Statut machine : pastille (décorative, aria-hidden) + libellé --- */
.vt-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
}
.vt-status-dot {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}
.vt-status-label {
  font-size: 0.875rem;
  font-weight: 500;
}

/* --- Alerte / bannière --- */
.vt-alert {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 1rem;
}
.vt-alert--error   { background-color: var(--danger-soft); border-color: rgb(220 38 38 / 0.3); color: #b91c1c; }
.vt-alert--success { background-color: var(--success-soft); border-color: rgb(22 163 74 / 0.3); color: #15803d; }
.vt-alert--warning { background-color: var(--warning-soft); border-color: rgb(217 119 6 / 0.3); color: #92400e; }
.vt-alert--info    { background-color: var(--info-soft); border-color: rgb(2 132 199 / 0.3); color: #0369a1; }

/* --- Table --- */
.vt-table { width: 100%; border-collapse: collapse; }
.vt-table thead th {
  background-color: var(--surface-muted);
  color: var(--muted-foreground);
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.75rem 1rem;
}
.vt-table tbody td {
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  border-bottom: 1px solid var(--border);
}
.vt-table tbody tr:hover { background-color: var(--surface-muted); }

/* --- KPI --- */
.vt-kpi-value {
  font-size: 1.875rem;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--foreground);
}

/* --- Breadcrumb --- */
.vt-breadcrumb-link { color: var(--muted-foreground); text-decoration: none; }
.vt-breadcrumb-link:hover { color: var(--foreground); }
.vt-breadcrumb-current { color: var(--foreground); font-weight: 500; }
.vt-breadcrumb-sep { color: var(--muted-foreground); }

/* --- Sidebar --- */
.vt-sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-radius: var(--radius-md);
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}
.vt-sidebar-link:hover { background-color: var(--surface-muted); color: var(--foreground); }
.vt-sidebar-link--active {
  background-color: var(--surface-muted);
  color: var(--foreground);
  font-weight: 600;
}

/* --- Skeleton --- */
.vt-skeleton {
  background-color: var(--surface-muted);
  border-radius: var(--radius-md);
  animation: vt-pulse 1.6s ease-in-out infinite;
}
@keyframes vt-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* --- Empty state --- */
.vt-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  background-color: var(--surface);
  padding: 2rem;
}

/* --- Overlay du drawer mobile --- */
.vt-drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 30;
  background-color: rgb(0 0 0 / 0.4);
  transition: opacity var(--transition-base);
}

/* --- Indicateur de contexte tenant --- */
.vt-context {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--surface-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 0.25rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
}
.vt-context--locked { color: var(--secondary); }
.vt-context--global { color: var(--foreground); }

/* --- Arborescence (topologie) : ligne de guidage verticale (résout P2-2) --- */
.tree-line {
  border-left: 2px solid var(--border);
  margin-left: 11px;
  padding-left: 20px;
}

/* ----------------------------------------------------------------------------
   6. Ticketing & Support (C5 v1.0 — T5.4)
   Badges domaine : pattern fond -100 / texte -700/-800 (AA vérifié, cf.
   docs/ux-design-tokens.md §2.4). Jamais la couleur seule : chaque badge
   porte un libellé textuel + icône (rendus par views/tickets/_badges.php).
   -------------------------------------------------------------------------- */

/* --- Badges statut ticket --- */
.vt-badge-tk-ouvert  { background-color: #e0f2fe; color: #0369a1; }  /* sky-100 / sky-700   — 5.17:1 */
.vt-badge-tk-encours { background-color: #dbeafe; color: #1e40af; }  /* blue-100 / blue-800 — 8.60:1 */
.vt-badge-tk-attente { background-color: #fef3c7; color: #92400e; }  /* amber-100 / amber-800 — 6.37:1 */
.vt-badge-tk-resolu  { background-color: #dcfce7; color: #166534; }  /* green-100 / green-800 — 6.50:1 */
.vt-badge-tk-ferme   { background-color: #e2e8f0; color: #475569; }  /* slate-100 / slate-600 — 6.15:1 */

/* --- Badges priorité --- */
.vt-badge-pr-basse    { background-color: #e2e8f0; color: #475569; }  /* slate-100 / slate-600 */
.vt-badge-pr-normale  { background-color: #e0f2fe; color: #0369a1; }  /* sky-100 / sky-700 */
.vt-badge-pr-haute    { background-color: #fef3c7; color: #92400e; }  /* amber-100 / amber-800 */
.vt-badge-pr-critique { background-color: #fee2e2; color: #b91c1c; }  /* red-100 / red-700 — 5.30:1 */

/* --- Badges origine --- */
.vt-badge-or-auto  { background-color: #e0e7ff; color: #4338ca; }    /* indigo-100 / indigo-700 — 6.90:1 */
.vt-badge-or-user  { background-color: #e2e8f0; color: #475569; }    /* slate-100 / slate-600 */
.vt-badge-or-admin { background-color: #e0f2fe; color: #0369a1; }    /* sky-100 / sky-700 */

/* --- Note interne (rôles internes uniquement — jamais envoyée à un admin) ---
   Distinction NON colorée seule : fond ambré + bordure gauche + badge
   « Note interne » + icône (rendus côté vue). */
.vt-note-interne {
  background-color: #fffbeb; /* amber-50 */
  border: 1px solid rgb(217 119 6 / 0.35);
  border-left: 3px solid var(--warning);
  border-radius: var(--radius-md);
}

/* --- Fil de messages --- */
.vt-msg {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1rem;
}

/* --- Kanban (vue MSP) --- */
.vt-kanban {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
}
.vt-kanban-col {
  flex: 1 1 0;
  min-width: 15rem;
  background-color: var(--surface-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0.75rem;
}
.vt-kanban-card {
  display: block;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.75rem;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}
.vt-kanban-card:hover,
.vt-kanban-card:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

/* --- Micro-interactions (phase 4) — neutralisées par la règle globale
   prefers-reduced-motion ci-dessous (duration 0.01ms) --- */
@keyframes vt-rise {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: none; }
}
.vt-anim-rise { animation: vt-rise 300ms ease both; }
/* Stagger léger des cartes Kanban (plafonné à 10 colonnes visibles) */
.vt-kanban-col:nth-child(2) .vt-kanban-card { animation-delay: 40ms; }
.vt-kanban-col:nth-child(3) .vt-kanban-card { animation-delay: 80ms; }
.vt-kanban-col:nth-child(4) .vt-kanban-card { animation-delay: 120ms; }
.vt-kanban-col:nth-child(5) .vt-kanban-card { animation-delay: 160ms; }

/* ----------------------------------------------------------------------------
   7. Explorateur distant (C5.2 — Sprint 5 UI)
   Badges de statut de scan : pattern fond -100 / texte -700/-800 (AA vérifié,
   cf. docs/ux-design-tokens.md §2.4). Jamais la couleur seule : chaque badge
   est accompagné de son libellé textuel (+ icône pendant running).
   L'arbre (treeview) suit le pattern "disclosure list" : indentation pilotée
   par la variable CSS --tree-level (0..5), aucune couleur inline.
   -------------------------------------------------------------------------- */

/* --- Badges statut de scan (contrastes AA sur fond -100) --- */
.vt-badge-scan-queued    { background-color: #e0f2fe; color: #0369a1; }  /* sky-100   / sky-700   — 5.17:1 */
.vt-badge-scan-running   { background-color: #dbeafe; color: #1e40af; }  /* blue-100  / blue-800  — 8.60:1 */
.vt-badge-scan-completed { background-color: #dcfce7; color: #166534; }  /* green-100 / green-800 — 6.50:1 */
.vt-badge-scan-failed    { background-color: #fee2e2; color: #b91c1c; }  /* red-100   / red-700   — 5.30:1 */
.vt-badge-scan-expired   { background-color: #fef3c7; color: #92400e; }  /* amber-100 / amber-800 — 6.37:1 */
.vt-badge-scan-cancelled { background-color: #e2e8f0; color: #475569; }  /* slate-100 / slate-600 — 6.15:1 */

/* --- Treeview (résultats de scan) --- */
.vt-tree {
  background-color: var(--surface);
  border-top: 1px solid var(--border);
  max-height: 32rem;
  overflow: auto;
}
.vt-tree ul { list-style: none; margin: 0; padding: 0; }
.vt-tree-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px; /* cible tactile WCAG 2.2 AA */
  padding: 0.25rem 0.75rem 0.25rem calc(0.75rem + var(--tree-level, 0) * 1.25rem);
  border-bottom: 1px solid var(--border);
  font-size: 0.875rem;
  transition: background-color var(--transition-fast);
  animation: vt-fadein 200ms ease both;
}
.vt-tree-row:hover { background-color: var(--surface-muted); }
.vt-tree-row:last-child { border-bottom: 0; }
.vt-tree-name {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
/* Stagger léger à l'apparition (plafonné à 8 lignes visibles) */
.vt-tree-row:nth-child(2) { animation-delay: 20ms; }
.vt-tree-row:nth-child(3) { animation-delay: 40ms; }
.vt-tree-row:nth-child(4) { animation-delay: 60ms; }
.vt-tree-row:nth-child(5) { animation-delay: 80ms; }
.vt-tree-row:nth-child(6) { animation-delay: 100ms; }
.vt-tree-row:nth-child(7) { animation-delay: 120ms; }
.vt-tree-row:nth-child(8) { animation-delay: 140ms; }

/* --- Chemins & identifiants (mono) --- */
.vt-path {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

/* --- Spinner de polling (attendu, non bloquant) --- */
.vt-spinner {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: var(--radius-full);
  animation: vt-spin 0.8s linear infinite;
}
@keyframes vt-spin { to { transform: rotate(360deg); } }

@keyframes vt-fadein {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* --- Réduction de mouvement --- */
@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;
  }
}
