/* ============================================
   SFA-PRESENTATION — Styles communs
   v2 — Améliorations UX & accessibilité
   ============================================ */

/* --- Base --- */
html { scroll-behavior: smooth; }
html, body { margin: 0; height: 100vh; }
body { overflow: hidden; font-family: 'Inter', system-ui, sans-serif; }

/* --- Système de slides (mode toggle, défaut) --- */
.slide {
  display: none;
  position: relative;
  box-sizing: border-box;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none; /* Firefox */
  /* Forcer l'alignement en haut — le centrage est géré par margin auto sur les enfants */
  align-items: flex-start !important;
}
.slide::-webkit-scrollbar { display: none; /* Chrome/Safari */ }
/* Centrage vertical via margin auto — centre quand il y a de la place, top-align quand ça déborde */
.slide > * { margin-top: auto; margin-bottom: auto; }
.slide.active {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Scroll mode : toutes les slides visibles, scroll vertical */
body[data-nav="scroll"] { overflow-y: auto; scroll-snap-type: y mandatory; }
body[data-nav="scroll"] .slide { display: flex; }
body[data-nav="scroll"] .slide-scaler {
  overflow: hidden;
  scroll-snap-align: start;
}

/* Transition entre slides (mode toggle) */
.slide.slide-enter {
  animation: slideEnter 0.4s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes slideEnter {
  from { opacity: 0; transform: translateX(16px); }
  to { opacity: 1; transform: translateX(0); }
}

/* --- Skip link (accessibilité WCAG) --- */
.skip-link {
  position: fixed;
  top: -100%;
  left: 1rem;
  z-index: 200;
  padding: 0.75rem 1.25rem;
  background: #000;
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 0 0 0.5rem 0.5rem;
  text-decoration: none;
  transition: top 0.2s ease;
}
.skip-link:focus {
  top: 0;
  outline: 3px solid #3b82f6;
  outline-offset: 2px;
}

/* --- Focus visible global (WCAG 2.4.7) --- */
:focus-visible {
  outline: 3px solid var(--color-accent, #3b82f6);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Pas d'outline au clic souris */
:focus:not(:focus-visible) {
  outline: none;
}

/* --- ARIA live region (invisible, pour lecteurs d'écran) --- */
.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;
}

/* --- Navigation dots --- */
#dots {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
  background: rgba(0,0,0,0.35);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 0.5rem 0.35rem;
  border-radius: 9999px;
}
.nav-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 9999px;
  background: rgba(255,255,255,0.35);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: all 0.3s ease;
}
.nav-dot:hover {
  background: rgba(255,255,255,0.65);
}
.nav-dot.active {
  width: 0.6rem;
  height: 0.6rem;
  background: var(--color-accent, #3b82f6);
  box-shadow: 0 0 6px var(--color-accent, rgba(59,130,246,0.6));
}
.nav-dot:focus-visible {
  outline: 2px solid var(--color-accent, #3b82f6);
  outline-offset: 2px;
}

/* --- Barre de progression (auto-créée) --- */
.slide-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(255,255,255,0.08);
  z-index: 100;
}
.slide-progress-bar {
  height: 100%;
  background: var(--color-accent, #3b82f6);
  transition: width 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

/* --- Boutons prev/next (auto-créés) --- */
.slide-nav {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: 90;
  display: flex;
  gap: 0.5rem;
}
.slide-nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 9999px;
  border: none;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}
.slide-nav-btn:hover {
  background: rgba(255,255,255,0.16);
  color: rgba(255,255,255,0.9);
}
.slide-nav-btn:active {
  transform: scale(0.92);
}

/* --- Compteur de slides (auto-créé) --- */
.slide-counter {
  position: fixed;
  bottom: 1.5rem;
  left: 1.25rem;
  z-index: 90;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: rgba(255,255,255,0.35);
}

/* --- Animations --- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes fadeInScale {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}
@keyframes pulse-slow {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.animate-fade-in-up { animation: fadeInUp 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards; }
.animate-fade-in-left { animation: fadeInLeft 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards; }
.animate-fade-in-scale { animation: fadeInScale 0.5s cubic-bezier(0.22, 1, 0.36, 1) forwards; }
.animate-pulse-slow { animation: pulse-slow 3s ease-in-out infinite; }

.delay-100 { animation-delay: 0.1s; opacity: 0; }
.delay-200 { animation-delay: 0.2s; opacity: 0; }
.delay-300 { animation-delay: 0.3s; opacity: 0; }
.delay-400 { animation-delay: 0.4s; opacity: 0; }
.delay-500 { animation-delay: 0.5s; opacity: 0; }
.delay-600 { animation-delay: 0.6s; opacity: 0; }

/* prefers-reduced-motion : désactiver les animations (WCAG 2.3.3) */
@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;
  }
  html { scroll-behavior: auto; }
  .slide.slide-enter { animation: none; opacity: 1; transform: none; }
}

/* --- Blocs de code --- */
.code-block {
  background: #1e1e1e;
  position: relative;
  border-radius: 0.75rem;
  padding: 1rem 1.25rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.875rem;
  line-height: 1.65;
  color: #cbd5e1;
  overflow-x: auto;
  border: 1px solid rgba(255,255,255,0.06);
}
.code-block pre { margin: 0; color: inherit; }
.code-block code { color: inherit; white-space: pre; display: block; }

/* Coloration syntaxique — toutes AAA (≥ 7:1) sur #1e1e1e */
.keyword  { color: #d4a0cf; } /* 7.72:1 — mauve */
.string   { color: #daa48e; } /* 7.69:1 — orange */
.function { color: #dcdcaa; } /* 11.80:1 — jaune pâle */
.comment  { color: #85b86e; font-style: italic; } /* 7.21:1 — vert */
.tag      { color: #74b3e8; } /* 7.43:1 — bleu */
.attr     { color: #9cdcfe; } /* 11.18:1 — bleu ciel */
.value    { color: #daa48e; } /* 7.69:1 — orange */
.number   { color: #b5cea8; } /* 9.81:1 — vert clair */
.type     { color: #4ec9b0; } /* 8.18:1 — turquoise */
.variable { color: #9cdcfe; } /* 11.18:1 — bleu ciel */
.php-tag  { color: #aaaaaa; } /* 7.18:1 — gris */

/* --- Cartes --- */
.card-hover { transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1); }
.card-hover:hover { transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,0.3); }

/* --- Gradient text --- */
.gradient-text {
  background: linear-gradient(135deg, var(--color-accent, #60a5fa) 0%, var(--color-accent-alt, #a78bfa) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Glow --- */
.glow { box-shadow: 0 0 40px rgba(59, 130, 246, 0.15); }

/* --- Bouton copier (blocs de code) --- */
.copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  padding: 0.35rem 0.7rem;
  min-height: 32px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 0.375rem;
  color: #94a3b8;
  font-size: 0.75rem;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.22, 1, 0.36, 1);
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}
.copy-btn:hover { background: rgba(255,255,255,0.16); color: #e2e8f0; }
.copy-btn.copied { background: rgba(34,197,94,0.2); border-color: rgba(34,197,94,0.4); color: #4ade80; }

/* --- Indicateur contraste --- */
#contrast-indicator,
#contrast-badge {
  display: none;
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 100;
  background: #000;
  color: #fff;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: bold;
}

/* --- Raccourcis clavier hint --- */
.keyboard-hint {
  position: fixed;
  bottom: 1.25rem;
  left: 1.25rem;
  z-index: 90;
  display: flex;
  gap: 0.35rem;
  opacity: 0;
  animation: hintAppear 0.5s 2s forwards;
}
.keyboard-hint kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.5rem;
  height: 1.5rem;
  padding: 0 0.3rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  color: rgba(255,255,255,0.3);
}
@keyframes hintAppear {
  to { opacity: 1; }
}
/* Masquer le hint après la première interaction */
body.has-navigated .keyboard-hint { opacity: 0 !important; transition: opacity 0.3s ease; }

/* --- Print / export --- */
@media print {
  body { overflow: visible !important; }
  .slide { display: flex !important; min-height: 100vh; page-break-after: always; break-after: page; }
  .slide.active { display: flex !important; }
  #dots, .nav-dot, .slide-progress, .slide-nav, .copy-btn,
  .keyboard-hint, .slide-counter, .skip-link,
  #contrast-indicator, #contrast-badge { display: none !important; }
  [class*="blur"] { filter: none !important; }
}

/* ============================================
   Mode contraste élevé (touche C)

   Monochrome strict : noir #000, blanc #FFF,
   gris #E0E0E0 (secondaire), #CCC (bordures).
   Fond sombre — optimal pour projection en salle.
   Aucune couleur d'accent.
   ============================================ */

/* --- Base --- */
body.high-contrast {
  background: #000 !important;
  color: #fff !important;
}
body.high-contrast #contrast-indicator,
body.high-contrast #contrast-badge {
  display: block;
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  background: #fff !important;
  color: #000 !important;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: bold;
  border: 2px solid #fff !important;
}

/* --- Slides : fond noir uniforme --- */
body.high-contrast .slide {
  background: #000 !important;
  background-image: none !important;
}

/* --- Tout texte → blanc --- */
body.high-contrast .slide *:not(.code-block):not(.code-block *) {
  color: #fff !important;
  -webkit-text-fill-color: #fff !important;
}

/* --- Texte secondaire (gris clair, 15.3:1 sur noir) --- */
body.high-contrast .text-slate-400,
body.high-contrast .text-slate-500,
body.high-contrast .text-slate-600 {
  color: #e0e0e0 !important;
  -webkit-text-fill-color: #e0e0e0 !important;
}

/* --- Arrière-plans : tout en noir --- */
body.high-contrast [class*="bg-slate"],
body.high-contrast [class*="bg-js"],
body.high-contrast [class*="from-slate"],
body.high-contrast [class*="from-green"],
body.high-contrast [class*="from-orange"],
body.high-contrast [class*="from-amber"],
body.high-contrast [class*="from-red"],
body.high-contrast [class*="from-blue"],
body.high-contrast [class*="from-purple"],
body.high-contrast [class*="bg-green-500/10"],
body.high-contrast [class*="bg-orange-500/10"],
body.high-contrast [class*="bg-red-500/10"],
body.high-contrast [class*="bg-blue-500/10"],
body.high-contrast [class*="bg-purple-500/10"],
body.high-contrast [class*="bg-wp"],
body.high-contrast [class*="bg-vue"],
body.high-contrast [class*="from-wp"],
body.high-contrast [class*="from-vue"],
body.high-contrast [class*="gradient-"] {
  background: #000 !important;
  background-image: none !important;
}

/* --- Cartes / surfaces surélevées --- */
body.high-contrast [class*="bg-slate-900/"],
body.high-contrast [class*="bg-slate-800/"],
body.high-contrast [class*="bg-white/"],
body.high-contrast [class*="bg-black/"] {
  background: #1a1a1a !important;
}
body.high-contrast .slide a[class*="rounded"],
body.high-contrast .slide div[class*="rounded"][class*="border"],
body.high-contrast .slide div[class*="rounded"][class*="bg-"] {
  background: #1a1a1a !important;
  border: 2px solid #ccc !important;
}

/* --- Bordures : gris visible, 2px minimum --- */
body.high-contrast [class*="border-green"],
body.high-contrast [class*="border-orange"],
body.high-contrast [class*="border-amber"],
body.high-contrast [class*="border-red"],
body.high-contrast [class*="border-blue"],
body.high-contrast [class*="border-purple"],
body.high-contrast [class*="border-slate"],
body.high-contrast [class*="border-js"],
body.high-contrast [class*="border-wp"],
body.high-contrast [class*="border-vue"] {
  border-color: #ccc !important;
}

/* --- Badges / pills : monochrome --- */
body.high-contrast .bg-green-500,
body.high-contrast .bg-orange-500,
body.high-contrast .bg-red-500,
body.high-contrast .bg-blue-500,
body.high-contrast .bg-purple-500 {
  background: #333 !important;
}
body.high-contrast [class*="rounded-full"][class*="bg-"] {
  background: #1a1a1a !important;
  border: 1px solid #ccc !important;
}

/* --- Gradient text → blanc, pas de gradient --- */
body.high-contrast .gradient-text {
  background: none !important;
  -webkit-background-clip: unset !important;
  background-clip: unset !important;
  -webkit-text-fill-color: #fff !important;
  color: #fff !important;
}

/* --- Tableaux --- */
body.high-contrast table { border: 2px solid #ccc !important; }
body.high-contrast table thead { background: #1a1a1a !important; }
body.high-contrast table th { border-bottom: 2px solid #ccc !important; color: #fff !important; }
body.high-contrast table td { border-bottom: 1px solid #333 !important; color: #e0e0e0 !important; }
body.high-contrast table tr { border-color: #333 !important; }

/* --- Liens : blanc souligné (pas de couleur) --- */
body.high-contrast a {
  color: #fff !important;
  text-decoration: underline !important;
  text-underline-offset: 3px;
}

/* --- Effets visuels : tout supprimer --- */
body.high-contrast [class*="blur"] { filter: none !important; -webkit-filter: none !important; }
body.high-contrast [class*="shadow"] { box-shadow: none !important; }
body.high-contrast .glow { box-shadow: none !important; }
body.high-contrast [class*="opacity-"] { opacity: 1 !important; }
body.high-contrast .animate-pulse-slow { animation: none !important; }

/* --- Dots --- */
body.high-contrast #dots {
  background: transparent !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}
body.high-contrast .nav-dot {
  background: #333 !important;
  border: 2px solid #fff !important;
  box-shadow: none !important;
}
body.high-contrast .nav-dot.active {
  background: #fff !important;
  box-shadow: none !important;
}
body.high-contrast .nav-dot:focus-visible { outline-color: #fff; }

/* --- Nav prev/next --- */
body.high-contrast .slide-nav-btn {
  background: #1a1a1a !important;
  color: #fff !important;
  border: 2px solid #ccc !important;
  backdrop-filter: none !important;
}
body.high-contrast .slide-nav-btn:hover {
  background: #333 !important;
}

/* --- Progress bar --- */
body.high-contrast .slide-progress { background: #1a1a1a !important; }
body.high-contrast .slide-progress-bar { background: #fff !important; }

/* --- Counter --- */
body.high-contrast .slide-counter { color: #e0e0e0 !important; }

/* --- Keyboard hint --- */
body.high-contrast .keyboard-hint kbd {
  background: #1a1a1a !important;
  border-color: #ccc !important;
  color: #e0e0e0 !important;
}

/* --- SVG icons : blanc --- */
body.high-contrast svg { color: #fff !important; stroke: #fff !important; }

/* --- Images : ne pas toucher --- */
body.high-contrast img { filter: none !important; }

/* --- Blocs de code — DOIT rester en dernier pour gagner sur .slide * --- */
body.high-contrast .code-block,
body.high-contrast .code-block * {
  background-color: #1a1a1a !important;
  color: #e0e0e0 !important;
  -webkit-text-fill-color: #e0e0e0 !important;
  border-color: #ccc !important;
}
body.high-contrast .code-block {
  border: 2px solid #ccc !important;
}
body.high-contrast .code-block .keyword  { color: #d4a0cf !important; -webkit-text-fill-color: #d4a0cf !important; }
body.high-contrast .code-block .string   { color: #daa48e !important; -webkit-text-fill-color: #daa48e !important; }
body.high-contrast .code-block .function { color: #dcdcaa !important; -webkit-text-fill-color: #dcdcaa !important; }
body.high-contrast .code-block .comment  { color: #85b86e !important; -webkit-text-fill-color: #85b86e !important; }
body.high-contrast .code-block .tag      { color: #74b3e8 !important; -webkit-text-fill-color: #74b3e8 !important; }
body.high-contrast .code-block .attr     { color: #9cdcfe !important; -webkit-text-fill-color: #9cdcfe !important; }
body.high-contrast .code-block .value    { color: #daa48e !important; -webkit-text-fill-color: #daa48e !important; }
body.high-contrast .code-block .number   { color: #b5cea8 !important; -webkit-text-fill-color: #b5cea8 !important; }
body.high-contrast .code-block .type     { color: #4ec9b0 !important; -webkit-text-fill-color: #4ec9b0 !important; }
body.high-contrast .code-block .variable { color: #9cdcfe !important; -webkit-text-fill-color: #9cdcfe !important; }
body.high-contrast .code-block .php-tag  { color: #aaaaaa !important; -webkit-text-fill-color: #aaaaaa !important; }
body.high-contrast .code-block .copy-btn {
  background: #333 !important;
  color: #e0e0e0 !important;
  -webkit-text-fill-color: #e0e0e0 !important;
  border-color: #ccc !important;
}

/* --- Support OS forced-colors --- */
@media (forced-colors: active) {
  .code-block { forced-color-adjust: none; border: 2px solid ButtonText; }
  .slide { forced-color-adjust: auto; }
}