/* ?? NAVBAR COMPACT FIX ?? */
/* ?? NAVBAR AMÉLIORÉE ?? */
.navbar {
  position:fixed;top:0;left:0;right:0;z-index:200;
  background:rgba(255,255,255,.98);
  backdrop-filter:blur(20px);
  border-bottom:2px solid #EDE9FE;
  box-shadow:0 2px 20px rgba(124,58,237,.08);
  overflow:visible;
}
/* Compenser la hauteur de la navbar fixe */
body { padding-top:68px; }

/* Correction du fil d'ariane sur la page d'accueil */
body.home-page .breadcrumb-container,
body.home-page #breadcrumb-container,
body.home-page .breadcrumb-wrapper { display: none !important; }
.navbar .nav-inner {
  width:100%;max-width:1720px;margin:0 auto;padding:0 clamp(16px,5vw,96px);
  display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px;
  overflow:visible;
}
.navbar .logo {
  font-family:'Nunito',sans-serif;font-weight:900;font-size:1.4rem;
  color:#7C3AED;white-space:nowrap;margin-right:0;flex-shrink:0;
  letter-spacing:-.02em;
}
.navbar .logo span { color:#FF6B6B; }
/* Nav links */
.navbar .nav-links { display:flex;align-items:center;justify-content:center;gap:6px;flex:0 1 auto;min-width:0;overflow:visible;position:relative; }
.navbar .nav-link {
  padding:8px 16px;border-radius:14px;font-size:.84rem;font-weight:800;
  color:#374151;white-space:nowrap;transition:all .15s;text-decoration:none;
  font-family:'Space Grotesk',sans-serif;
  background:linear-gradient(180deg,#ffffff 0%,#f0ecff 100%);
  border:1.5px solid #d4c8f8;
  box-shadow:3px 5px 0 #b8a8f0, 4px 7px 12px rgba(124,58,237,.15);
  transform:translateY(0);
  position:relative;
}
.navbar .nav-link:hover {
  color:#7C3AED;
  background:linear-gradient(180deg,#f5f0ff 0%,#e8deff 100%);
  box-shadow:1px 3px 0 #b8a8f0, 2px 5px 8px rgba(124,58,237,.2);
  transform:translateY(2px);
}
.navbar .nav-link.active {
  color:#7C3AED;
  background:linear-gradient(180deg,#ede9fe 0%,#ddd6fe 100%);
  box-shadow:0 1px 0 #b8a8f0, 1px 2px 6px rgba(124,58,237,.2);
  transform:translateY(3px);
  border-color:#c4b5fd;
}
/* Search */
.nav-search {
  display:flex;align-items:center;gap:8px;
  background:#F5F3FF;border:2px solid #DDD6FE;
  border-radius:999px;padding:7px 14px;
  width:clamp(220px,28vw,500px);flex:1 1 320px;max-width:520px;margin:0;transition:all .25s;
}
.nav-search:focus-within {
  border-color:#7C3AED;box-shadow:0 0 0 3px rgba(124,58,237,.12);
  background:white;
}
.nav-search input {
  border:none;outline:none;font-family:'Space Grotesk',sans-serif;
  font-size:.82rem;background:transparent;width:100%;color:#1E1B4B;
}
/* Actions */
.nav-actions { display:flex;align-items:center;gap:8px;flex-shrink:0; }
.nav-avatar {
  width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#7C3AED,#A78BFA);
  color:white;display:flex;align-items:center;justify-content:center;
  font-family:'Nunito',sans-serif;font-weight:900;font-size:.9rem;
  box-shadow:0 3px 10px rgba(124,58,237,.35);text-decoration:none;
  transition:transform .2s;
}
.nav-avatar:hover { transform:scale(1.08); }
.nav-btn {
  padding:8px 18px;border-radius:14px;border:none;cursor:pointer;
  font-family:'Nunito',sans-serif;font-weight:800;font-size:.84rem;
  text-decoration:none;display:inline-flex;align-items:center;gap:5px;
  transition:all .15s;
  position:relative;
  transform:translateY(0);
}
.nav-btn:hover { transform:translateY(2px); }
.nav-btn-ghost {
  background:linear-gradient(180deg,#ffffff 0%,#f9fafb 100%);
  color:#374151;
  border:1.5px solid #d1d5db;
  box-shadow:3px 5px 0 #9ca3af, 4px 7px 12px rgba(107,114,128,.15);
}
.nav-btn-ghost:hover {
  border-color:#7C3AED;color:#7C3AED;
  background:linear-gradient(180deg,#f5f3ff 0%,#ede9fe 100%);
  box-shadow:1px 3px 0 #9ca3af, 2px 5px 8px rgba(124,58,237,.2);
  transform:translateY(2px);
}
.nav-btn-primary {
  background:linear-gradient(180deg,#8b5cf6 0%,#7c3aed 100%);
  color:white;
  border:1.5px solid #6d28d9;
  box-shadow:3px 5px 0 #5b21b6, 4px 7px 14px rgba(124,58,237,.4);
}
.nav-btn-primary:hover {
  background:linear-gradient(180deg,#7c3aed 0%,#6d28d9 100%);
  box-shadow:1px 3px 0 #5b21b6, 2px 5px 10px rgba(124,58,237,.5);
  transform:translateY(2px);
}
/* Dropdown trigger buttons */
.nav-more { position:relative;z-index:100; }
.nav-more-btn {
  padding:8px 16px;border-radius:14px;font-size:.84rem;font-weight:800;
  color:#374151;cursor:pointer;
  font-family:'Space Grotesk',sans-serif;display:flex;align-items:center;
  gap:5px;white-space:nowrap;transition:all .15s;
  background:linear-gradient(180deg,#ffffff 0%,#f0ecff 100%);
  border:1.5px solid #d4c8f8;
  box-shadow:3px 5px 0 #b8a8f0, 4px 7px 12px rgba(124,58,237,.15);
  transform:translateY(0);
  position:relative;
}
.nav-more-btn:hover {
  color:#7C3AED;
  background:linear-gradient(180deg,#f5f0ff 0%,#e8deff 100%);
  box-shadow:1px 3px 0 #b8a8f0, 2px 5px 8px rgba(124,58,237,.2);
  transform:translateY(2px);
}
.nav-more-btn.active {
  color:#7C3AED;
  background:linear-gradient(180deg,#ede9fe 0%,#ddd6fe 100%);
  box-shadow:0 1px 0 #b8a8f0, 1px 2px 6px rgba(124,58,237,.2);
  transform:translateY(3px);
  border-color:#c4b5fd;
}
/* Dropdown chevron animation */
.nav-more-btn .nav-chevron { display:inline-block;transition:transform .2s;font-style:normal;font-size:.7rem;opacity:.6; }
.nav-more.open .nav-more-btn .nav-chevron { transform:rotate(180deg); }
/* Dropdown panel */
.nav-dropdown {
  position:absolute;top:calc(100% + 8px);left:0;
  background:white;border:2px solid #EDE9FE;border-radius:16px;
  padding:8px;min-width:240px;width:max-content;
  box-shadow:0 16px 48px rgba(124,58,237,.18);
  opacity:0;pointer-events:none;
  transform:translateY(-10px) scale(.97);
  transform-origin:top left;
  transition:all .22s cubic-bezier(.34,1.56,.64,1);z-index:300;
}
.nav-more.open .nav-dropdown { opacity:1;pointer-events:all;transform:translateY(0) scale(1); }
/* Dropdown aligné à droite (ex: avatar utilisateur) */
#nav-user-dropdown { left:auto;right:0;transform-origin:top right; }
.nav-dropdown a {
  display:flex;align-items:center;gap:10px;padding:10px 14px;
  border-radius:10px;font-size:.86rem;font-weight:600;
  color:#374151;text-decoration:none;transition:all .15s;white-space:nowrap;
}
.nav-dropdown a:hover { background:#F5F3FF;color:#7C3AED;padding-left:18px; }
.nav-dropdown .drop-divider { height:1px;background:#F3F0FF;margin:6px 8px; }
.nav-dropdown .drop-section-label {
  padding: 8px 14px 3px;
  font-size: .67rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: #9CA3AF;
}

/* Suppression de la flèche de retour en haut */
#scroll-to-top, .back-to-top, .scroll-up-btn, a[href="#top"] { display: none !important; }
/* Notif badge */
.notif-btn {
  position:relative;padding:7px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:#6B7280;text-decoration:none;font-size:1.1rem;
  transition:all .2s;border:2px solid transparent;
}
.notif-btn:hover { background:#F5F3FF;color:#7C3AED;border-color:#DDD6FE; }
.notif-dot {
  position:absolute;top:4px;right:4px;width:8px;height:8px;
  background:#FF6B6B;border-radius:50%;border:2px solid white;
  animation:pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%,100%{box-shadow:0 0 0 0 rgba(255,107,107,.4)}
  50%{box-shadow:0 0 0 4px rgba(255,107,107,0)}
}
.theme-toggle {
  width:36px;height:36px;border-radius:50%;
  border:2px solid #DDD6FE;background:white;
  color:#6B7280;cursor:pointer;font-weight:900;
  transition:all .2s;display:flex;align-items:center;justify-content:center;
}
.theme-toggle:hover { color:#7C3AED;background:#F5F3FF;border-color:#C4B5FD; }
/* Mobile Menu Hamburger */
.mobile-menu-btn { display:none;width:40px;height:40px;border:none;background:transparent;cursor:pointer;padding:8px;border-radius:8px;transition:background .2s; }
.mobile-menu-btn:hover { background:#F3F4F6; }
.mobile-menu-btn span { display:block;width:100%;height:2.5px;background:#1E1B4B;border-radius:2px;transition:all .3s; }
.mobile-menu-btn span:nth-child(2) { margin:5px 0; }
.mobile-menu-btn.active span:nth-child(1) { transform:translateY(7.5px) rotate(45deg); }
.mobile-menu-btn.active span:nth-child(2) { opacity:0; }
.mobile-menu-btn.active span:nth-child(3) { transform:translateY(-7.5px) rotate(-45deg); }

/* Mobile Menu Overlay */
.mobile-menu { position:fixed;top:68px;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);backdrop-filter:blur(4px);z-index:199;opacity:0;pointer-events:none;transition:opacity .3s; }
.mobile-menu.active { opacity:1;pointer-events:all; }
.mobile-menu-content { position:absolute;top:0;right:0;width:min(320px,85vw);height:100%;background:white;box-shadow:-4px 0 20px rgba(0,0,0,.15);transform:translateX(100%);transition:transform .3s;overflow-y:auto;padding:20px;padding-bottom:calc(20px + env(safe-area-inset-bottom,0px)); }
.mobile-menu.active .mobile-menu-content { transform:translateX(0); }

/* Mobile Menu Items */
.mobile-menu-section { margin-bottom:24px; }
.mobile-menu-section-title { font-family:'Nunito',sans-serif;font-weight:900;font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:#9CA3AF;margin-bottom:12px; }
.mobile-menu-link { display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:10px;font-size:.9rem;font-weight:600;color:#374151;text-decoration:none;transition:all .15s;margin-bottom:4px; }
.mobile-menu-link:hover,.mobile-menu-link.active { background:#F5F3FF;color:#7C3AED; }
.mobile-menu-link span { font-size:1.2rem; }

/* Mobile Search */
.mobile-search { margin-bottom:20px; }
.mobile-search form { display:flex;align-items:center;gap:8px;background:#F9FAFB;border:1.5px solid #E5E7EB;border-radius:12px;padding:10px 14px; }
.mobile-search input { border:none;outline:none;font-family:'Space Grotesk',sans-serif;font-size:.9rem;background:transparent;width:100%;color:#1E1B4B; }
.mobile-search input::placeholder { color:#9CA3AF; }

/* Responsive */
@media(max-width:1100px){ 
  .nav-links { display:none; } 
  .nav-search { display:none; } 
  .mobile-menu-btn { display:flex;flex-direction:column;justify-content:center; }
  .nav-actions .nav-btn-ghost:not([style*="color:#EF4444"]) { display:none; }
  .nav-actions .theme-toggle { display:none; }
}
@media(max-width:1320px){
  .navbar .nav-links { display:none; }
  .navbar .nav-inner { gap:18px; }
  .nav-search { max-width:560px; }
  .mobile-menu-btn { display:flex;flex-direction:column;justify-content:center; }
}
/* Ajustements pour écrans moyens (900px-1100px) */
@media(min-width:901px) and (max-width:1100px){
  .navbar .nav-inner { padding:0 16px; gap:0; }
  .navbar .nav-link { padding:7px 12px; font-size:.8rem; }
  .navbar .nav-more-btn { padding:7px 12px; font-size:.8rem; }
  .nav-search { width:160px; margin:0 8px; }
  .nav-search:focus-within { width:190px; }
}
/* ?? Lucide Icons dans la navbar ?? */
.nav-icon {
  display:inline-flex;align-items:center;justify-content:center;
  width:16px;height:16px;flex-shrink:0;
  vertical-align:middle;
}
.nav-icon svg { width:16px;height:16px;stroke-width:2; }
.nav-dropdown a .nav-icon { width:17px;height:17px; }
.nav-dropdown a .nav-icon svg { width:17px;height:17px; }
.mobile-menu-link .nav-icon { width:20px;height:20px; }
.mobile-menu-link .nav-icon svg { width:20px;height:20px; }
.footer-col a .nav-icon { width:15px;height:15px; }
/* Autocomplete hover — remplace les onmouseover/onmouseout inline (CSP) */
.autocomplete-result-item:hover { background: #F5F3FF !important; }
.footer-col a .nav-icon svg { width:15px;height:15px; }

/* Page transition - fade in */
body { opacity: 0; transition: opacity 0.3s ease-in-out; }
body.loaded { opacity: 1; }
/* ── Carousel devoirs ── */
.carousel-drag { display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;scrollbar-width:thin; }
.carousel-drag::-webkit-scrollbar { height:5px; }
.carousel-drag::-webkit-scrollbar-thumb { background:#7C3AED;border-radius:10px; }
.carousel-drag > * { scroll-snap-align:start;flex-shrink:0; }
.badge-diff-facile { background:linear-gradient(135deg,#10B981,#34D399);color:white;padding:3px 9px;border-radius:999px;font-size:0.7rem;font-weight:800; }
.badge-diff-moyen { background:linear-gradient(135deg,#F59E0B,#FBBF24);color:white;padding:3px 9px;border-radius:999px;font-size:0.7rem;font-weight:800; }
.badge-diff-difficile { background:linear-gradient(135deg,#EF4444,#F87171);color:white;padding:3px 9px;border-radius:999px;font-size:0.7rem;font-weight:800; }
.badge-diff-tres-difficile { background:linear-gradient(135deg,#7C3AED,#A78BFA);color:white;padding:3px 9px;border-radius:999px;font-size:0.7rem;font-weight:800; }
.tilt-card { transition:transform 0.4s ease; }
/* ── Features ── */
.feature-icon-circle { transition:transform 0.6s cubic-bezier(0.34,1.56,0.64,1); }
.feature-card:hover .feature-icon-circle { transform:rotate(360deg) scale(1.1); }
.feature-watermark { position:absolute;top:8px;right:16px;font-size:4.5rem;font-weight:900;color:#7C3AED;opacity:0.04;font-family:'Nunito',sans-serif;pointer-events:none; }

/* ── Niveaux tabs ── */
.niveau-panel { display:none; }
.niveau-panel.active { display:grid;grid-template-columns:repeat(4,1fr);gap:20px; animation: fadeIn 0.5s ease-in-out; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ── Témoignages — 4 par page ── */
.temoignages-viewport { overflow:hidden;position:relative; }
.temoignages-track { display:flex;gap:20px;transition:transform 0.5s cubic-bezier(0.4,0,0.2,1); }
.testimonial-card { flex:0 0 calc(25% - 15px);background:white;border-radius:20px;padding:22px;border:2px solid #E5E7EB;position:relative;transition:all 0.3s; }
.testimonial-card::before { content:'"';position:absolute;top:14px;left:16px;font-size:5rem;font-family:'Nunito',sans-serif;font-weight:900;color:#7C3AED;opacity:0.07;line-height:1; }
.testimonial-avatar { width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:'Nunito',sans-serif;font-weight:900;font-size:1.1rem;color:white;margin-bottom:10px; }
.testimonial-text { font-style:italic;color:#374151;margin-bottom:14px;line-height:1.65;position:relative;z-index:1;font-size:0.88rem; }
.testimonial-author { font-weight:700;color:#1E1B4B;margin-bottom:3px;font-size:0.9rem; }
.testimonial-meta { font-size:0.78rem;color:#6B7280; }
.testimonial-stars { color:#F59E0B;margin-top:6px;font-size:0.9rem; }
.temo-nav { display:flex;justify-content:center;align-items:center;gap:16px;margin-top:24px; }
.temo-nav-btn { width:42px;height:42px;border-radius:50%;border:2px solid #7C3AED;background:white;color:#7C3AED;font-size:1.1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all 0.2s; }
.temo-nav-btn:hover { background:#7C3AED;color:white; }
.temo-nav-btn:disabled { opacity:0.3;cursor:not-allowed; }
.carousel-dots { display:flex;justify-content:center;gap:8px;margin-top:16px; }
.carousel-dot { width:10px;height:10px;border-radius:50%;background:#E5E7EB;cursor:pointer;transition:all 0.3s; }
.carousel-dot.active { background:#7C3AED;width:24px;border-radius:5px; }

/* ── CTA Final ── */
.cta-final { background:linear-gradient(135deg,#7C3AED 0%,#5B21B6 50%,#EF4444 100%);color:white;padding:80px 0;position:relative;overflow:hidden; }

/* ── Scroll to top ── */
.scroll-to-top { position:fixed;bottom:28px;right:28px;width:48px;height:48px;background:#7C3AED;color:white;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.3rem;cursor:pointer;box-shadow:0 4px 20px rgba(124,58,237,0.4);opacity:0;pointer-events:none;transition:all 0.3s;z-index:999; }
.scroll-to-top.visible { opacity:1;pointer-events:all; }
.scroll-to-top:hover { transform:translateY(-4px); }

@media(max-width:1024px){
  .testimonial-card{flex:0 0 calc(50% - 10px);}
  .niveau-panel.active{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:768px){
  .testimonial-card{flex:0 0 100%;}
  .niveau-panel.active{grid-template-columns:1fr 1fr;}
}
/* ── Modern Features Section (shadcnstudio inspired) ── */
.features-section-modern { 
  padding: 120px 0; 
  background: linear-gradient(to bottom, #ffffff 0%, #faf8ff 50%, #f3f0ff 100%);
  position: relative;
  overflow: hidden;
}

.features-section-modern::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(124,58,237,0.08) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 20s ease-in-out infinite;
}

.features-section-modern::after {
  content: '';
  position: absolute;
  bottom: -30%;
  right: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(219,39,119,0.06) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 25s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -30px); }
}

.features-grid-modern { 
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); 
  gap: 32px; 
  position: relative;
  z-index: 1;
}

.feature-card-modern {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  border-radius: 24px;
  padding: 40px 32px;
  border: 1px solid rgba(124,58,237,0.1);
  position: relative;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.feature-card-modern::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--feature-color-1), var(--feature-color-2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.feature-card-modern:hover::before {
  transform: scaleX(1);
}

.feature-card-modern:hover {
  transform: translateY(-8px);
  border-color: rgba(124,58,237,0.3);
  box-shadow: 0 20px 40px rgba(124,58,237,0.15);
  background: rgba(255, 255, 255, 0.9);
}

.feature-icon-wrapper {
  position: relative;
  width: fit-content;
}

.feature-icon-modern {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  background: linear-gradient(135deg, var(--feature-color-1), var(--feature-color-2));
  color: white;
  position: relative;
  z-index: 2;
  transition: all 0.4s ease;
  box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.feature-card-modern:hover .feature-icon-modern {
  transform: scale(1.1) rotate(-5deg);
  box-shadow: 0 12px 24px rgba(0,0,0,0.15);
}

.feature-icon-bg {
  position: absolute;
  width: 80px;
  height: 80px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--feature-color-1), var(--feature-color-2));
  opacity: 0.15;
  top: -8px;
  left: -8px;
  z-index: 1;
  transition: all 0.4s ease;
}

.feature-card-modern:hover .feature-icon-bg {
  transform: rotate(10deg) scale(1.15);
  opacity: 0.25;
}

.feature-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-title-modern {
  font-family: 'Outfit', 'Space Grotesk', sans-serif;
  font-weight: 800;
  font-size: 1.35rem;
  color: #1E1B4B;
  margin: 0;
  line-height: 1.3;
}

.feature-desc-modern {
  font-size: 0.95rem;
  color: #64748B;
  line-height: 1.7;
  margin: 0;
}

.feature-number {
  position: absolute;
  top: 16px;
  right: 16px;
  font-family: 'Outfit', sans-serif;
  font-weight: 900;
  font-size: 2rem;
  background: linear-gradient(135deg, var(--feature-color-1), var(--feature-color-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.15;
  transition: opacity 0.3s ease;
}

.feature-card-modern:hover .feature-number {
  opacity: 0.25;
}

/* Animation d'apparition */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.feature-card-modern {
  animation: fadeInUp 0.6s ease forwards;
  opacity: 0;
}

.feature-card-modern:nth-child(1) { animation-delay: 0.1s; }
.feature-card-modern:nth-child(2) { animation-delay: 0.2s; }
.feature-card-modern:nth-child(3) { animation-delay: 0.3s; }
.feature-card-modern:nth-child(4) { animation-delay: 0.4s; }
.feature-card-modern:nth-child(5) { animation-delay: 0.5s; }
.feature-card-modern:nth-child(6) { animation-delay: 0.6s; }

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

@media(max-width:768px){ 
  .features-grid-modern { grid-template-columns: 1fr; } 
  .feature-card-modern { padding: 32px 24px; }
  .features-section-modern { padding: 80px 0; }
}
/* ?? HERO ? cartes stables avec float doux ?? */
.hero-section { padding:90px 0 70px;position:relative;overflow:hidden;background:linear-gradient(135deg,#faf8ff 0%,#fff5f5 100%); }
.hero-mesh { position:absolute;inset:0;overflow:hidden;z-index:0;pointer-events:none; }
.blob { position:absolute;border-radius:50%;filter:blur(80px);opacity:0.12; }
.blob1 { width:380px;height:380px;background:#7C3AED;top:5%;left:2%;animation:blobFloat1 12s ease-in-out infinite alternate; }
.blob2 { width:320px;height:320px;background:#EF4444;bottom:10%;right:5%;animation:blobFloat2 14s ease-in-out infinite alternate; }
.blob3 { width:260px;height:260px;background:#F59E0B;top:45%;left:45%;animation:blobFloat3 10s ease-in-out infinite alternate; }
@keyframes blobFloat1 { 0%{transform:translate(0,0)} 100%{transform:translate(20px,-20px)} }
@keyframes blobFloat2 { 0%{transform:translate(0,0)} 100%{transform:translate(-15px,15px)} }
@keyframes blobFloat3 { 0%{transform:translate(0,0)} 100%{transform:translate(10px,-10px)} }

/* ?? Particules ?? */
.particle { position:absolute;pointer-events:none;opacity:0.18; }
.particle-1 { top:12%;left:8%;animation:pFloat 8s ease-in-out infinite; }
.particle-2 { top:22%;right:12%;animation:pFloat 7s ease-in-out infinite 1s; }
.particle-3 { top:65%;left:18%;animation:pFloat 9s ease-in-out infinite 2s; }
.particle-4 { top:75%;right:22%;animation:pFloat 6s ease-in-out infinite 0.5s; }
@keyframes pFloat { 0%,100%{transform:translateY(0) rotate(0deg)} 50%{transform:translateY(-18px) rotate(90deg)} }

/* ?? Hero cards ? float doux SANS 3D agressif ?? */
.hero-cards-wrap { position:relative;height:420px; }
.hero-card { position:absolute;background:white;border-radius:20px;padding:18px;
  box-shadow:0 8px 32px rgba(124,58,237,0.14);border:1.5px solid #E5E7EB;
  transition:transform 0.6s cubic-bezier(0.34,1.56,0.64,1),box-shadow 0.3s; }
.hero-card:hover { box-shadow:0 16px 48px rgba(124,58,237,0.22); }
.hero-card-1 { width:270px;top:0;left:0;animation:cardFloat1 5s ease-in-out infinite; }
.hero-card-2 { width:270px;top:90px;left:90px;animation:cardFloat2 6s ease-in-out infinite 0.8s; }
.hero-card-3 { width:250px;top:185px;left:20px;animation:cardFloat3 5.5s ease-in-out infinite 1.5s; }
@keyframes cardFloat1 { 0%,100%{transform:translateY(0) rotate(-2deg)} 50%{transform:translateY(-10px) rotate(-1deg)} }
@keyframes cardFloat2 { 0%,100%{transform:translateY(0) rotate(1.5deg)} 50%{transform:translateY(-8px) rotate(0.5deg)} }
@keyframes cardFloat3 { 0%,100%{transform:translateY(0) rotate(-1deg)} 50%{transform:translateY(-6px) rotate(0deg)} }

/* ?? Avatar group ?? */
.avatar-group { display:flex;align-items:center;margin-top:22px;gap:0; }
.avatar-group .av {
  width:42px;height:42px;border-radius:50%;
  border:3px solid rgba(255,255,255,0.95);
  margin-left:-12px;
  background:#EDE9FE;
  display:flex;align-items:center;justify-content:center;
  font-size:1rem;font-weight:800;color:#7C3AED;
  position:relative;
  overflow:hidden;
  box-shadow:0 2px 8px rgba(0,0,0,0.15);
  transition:transform 0.25s cubic-bezier(.34,1.56,.64,1), box-shadow 0.25s ease;
  animation: avatarPop 0.5s cubic-bezier(.34,1.56,.64,1) both;
  cursor:default;
}
.avatar-group .av:nth-child(1){animation-delay:0.05s;}
.avatar-group .av:nth-child(2){animation-delay:0.12s;}
.avatar-group .av:nth-child(3){animation-delay:0.19s;}
.avatar-group .av:nth-child(4){animation-delay:0.26s;}
.avatar-group .av:nth-child(5){animation-delay:0.33s;}
.avatar-group .av:first-child { margin-left:0; }
.avatar-group .av:hover {
  transform:translateY(-5px) scale(1.12);
  box-shadow:0 8px 20px rgba(0,0,0,0.2);
  z-index:10;
}
.avatar-group .av img {
  width:100%;height:100%;object-fit:cover;border-radius:50%;
}
.avatar-group .av-silhouette {
  width:100%;height:100%;
  display:flex;align-items:center;justify-content:center;
}
.avatar-group .av-silhouette svg {
  width:100%;height:100%;
}
.avatar-group-info {
  margin-left:14px;
  display:flex;flex-direction:column;gap:2px;
}
.avatar-group-text {
  font-size:0.88rem;color:#374151;font-weight:700;
  display:flex;align-items:center;gap:5px;
}
.avatar-group-text .live-dot {
  width:7px;height:7px;border-radius:50%;
  background:#10B981;
  display:inline-block;
  animation:livePulse 1.8s ease-in-out infinite;
  flex-shrink:0;
}
.avatar-group-sub {
  font-size:0.75rem;color:#9CA3AF;font-weight:500;
}
@keyframes avatarPop {
  0%   { opacity:0; transform:scale(0.5) translateY(8px); }
  100% { opacity:1; transform:scale(1) translateY(0); }
}
@keyframes livePulse {
  0%,100% { box-shadow:0 0 0 0 rgba(16,185,129,0.5); transform:scale(1); }
  50%      { box-shadow:0 0 0 5px rgba(16,185,129,0); transform:scale(1.15); }
}

/* ?? Scroll indicator ?? */
.scroll-indicator { position:absolute;bottom:24px;left:50%;transform:translateX(-50%);color:#7C3AED;opacity:0.5;animation:scrollBounce 1.8s ease-in-out infinite;font-size:1.4rem; }
@keyframes scrollBounce { 0%,100%{transform:translateX(-50%) translateY(0)} 50%{transform:translateX(-50%) translateY(8px)} }

/* ?? Animations ?? */
/* Le hero (premier .fade-up dans le viewport) est visible immédiatement pour le LCP.
   Les éléments hors viewport reçoivent la classe via JS après le chargement. */
.fade-up { opacity:1;transform:translateY(0); }
.fade-up.will-animate { opacity:0;transform:translateY(36px);transition:opacity 0.6s,transform 0.6s cubic-bezier(0.4,0,0.2,1); }
.fade-up.animate-in { opacity:1;transform:translateY(0); }
.slide-left { opacity:0;transform:translateX(-36px);transition:opacity 0.6s,transform 0.6s cubic-bezier(0.4,0,0.2,1); }
.slide-left.animate-in { opacity:1;transform:translateX(0); }
.scale-in { opacity:0;transform:scale(0.88);transition:opacity 0.6s,transform 0.6s cubic-bezier(0.4,0,0.2,1); }
.scale-in.animate-in { opacity:1;transform:scale(1); }

/* ?? Responsive ?? */
@media(max-width:768px){
  .hero-section{padding:60px 0 50px;}
  .hero-cards-wrap{height:300px;}
  .hero-card-1{width:220px;} .hero-card-2{width:220px;top:70px;left:60px;} .hero-card-3{width:200px;top:145px;}
}
@media(prefers-reduced-motion:reduce){ *,*::before,*::after{animation-duration:0.01ms !important;transition-duration:0.01ms !important;} }
.linktree-animation-section {
    background: linear-gradient(135deg, var(--violet) 0%, var(--dark) 100%);
    padding: 80px 0;
    overflow: hidden;
    color: white;
    position: relative;
    border-top: 5px solid var(--lime);
    border-bottom: 5px solid var(--lime);
}
 
.linktree-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}
 
.linktree-visual {
    position: relative;
    height: 500px;
    display: flex;
    justify-content: center;
    align-items: center;
}
 
.visual-container {
    position: relative;
    width: 100%;
    max-width: 500px;
    height: 100%;
}
 
/* Mockup Téléphone Tilted */
.phone-mockup {
    width: 240px;
    height: 480px;
    background: #111;
    border-radius: 40px;
    padding: 10px;
    box-shadow: 0 40px 100px -20px rgba(0, 0, 0, 0.5);
    transform: rotate(-10deg);
    z-index: 10;
    position: absolute;
    top: 40px;
    left: 100px;
    animation: floatPhone 10s ease-in-out infinite;
}
 
.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, var(--violet) 0%, var(--dark) 100%);
    border-radius: 32px;
    padding: 30px 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow: hidden;
}
 
.avatar-img {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background-size: cover;
    background-position: center;
    border: 3px solid rgba(255,255,255,0.25);
    margin-bottom: 15px;
}
 
.profile-name {
    font-weight: 900;
    font-size: 1.4rem;
    margin-bottom: 30px;
    letter-spacing: -1px;
    text-transform: uppercase;
    font-family: 'Nunito', sans-serif;
    color: var(--lime);
}
 
.link-bar {
    width: 100%;
    padding: 12px;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(12px);
    border-radius: 40px;
    margin-bottom: 15px;
    font-size: 0.85rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.1);
}
 
/* Éléments Flottants */
.floating-element {
    position: absolute;
}
 
.code-bracket {
    top: 20px;
    right: 40px;
    z-index: 15;
    animation: floatPara 12s ease-in-out infinite;
}
 
.card-edu {
    bottom: 40px;
    left: 0;
    width: 220px;
    background: white;
    color: var(--dark);
    border-radius: 20px;
    padding: 12px;
    box-shadow: 0 30px 60px rgba(0,0,0,0.3);
    z-index: 20;
    transform: rotate(-5deg);
    animation: floatPara 15s ease-in-out infinite reverse;
}
 
.edu-inner { display: flex; align-items: center; gap: 12px; }
.edu-img { width: 55px; height: 55px; display: flex; align-items: center; justify-content: center; border-radius: 10px; }
.edu-text { flex: 1; }
.edu-title { font-weight: 900; font-size: 1rem; color: var(--dark); }
.edu-sub { font-size: 0.75rem; opacity: 0.8; font-weight: 700; color: #6B7280; }
.edu-icon { color: var(--lime); opacity: 0.9; }
.edu-logo-corner { position: absolute; top: -10px; right: -10px; background: var(--violet); color: white; border-radius: 50%; width: 30px; height: 30px; display: flex; align-items: center; justify-content: center; box-shadow: 0 5px 15px rgba(0,0,0,0.2); }
.edu-logo-corner i { width: 16px; height: 16px; }
 
.social-icon {
    width: 54px;
    height: 54px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: white;
    color: var(--violet);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
    z-index: 12;
}
.social-icon i { width: 24px; height: 24px; }
.ig { right: 20px; top: 200px; animation: floatPara 9s ease-in-out infinite 0.5s; }
.spot { right: 10px; top: 290px; animation: floatPara 11s ease-in-out infinite 1s; }
.vim { right: 30px; top: 380px; animation: floatPara 10s ease-in-out infinite 1.5s; }
 
.atom {
    top: 150px;
    left: -20px;
    z-index: 5;
    animation: floatPara 14s ease-in-out infinite 1s;
}
 
/* Texte à droite */
.linktree-content {
    padding-left: 20px;
}
.linktree-title {
    font-family: 'Nunito', sans-serif;
    font-weight: 900;
    font-size: 3.8rem;
    line-height: 0.95;
    margin-bottom: 24px;
    color: white;
    letter-spacing: -2px;
}
.linktree-desc {
    font-size: 1.2rem;
    line-height: 1.5;
    margin-bottom: 32px;
    opacity: 0.9;
    max-width: 500px;
    font-weight: 600;
}
.btn-linktree {
    display: inline-block;
    background: var(--lime);
    color: var(--dark);
    padding: 16px 40px;
    border-radius: 50px;
    font-weight: 900;
    font-size: 1.1rem;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 10px 20px rgba(132, 204, 22, 0.2);
}
.btn-linktree:hover {
    transform: translateY(-3px);
    filter: brightness(1.1);
    box-shadow: 0 15px 30px rgba(132, 204, 22, 0.3);
}
 
/* Animations Premium */
@keyframes floatPhone {
    0%, 100% { transform: rotate(-10deg) translateY(0); }
    50% { transform: rotate(-8deg) translateY(-30px); }
}
 
@keyframes floatPara {
    0%, 100% { transform: translate(0, 0) rotate(0); }
    33% { transform: translate(10px, -15px) rotate(2deg); }
    66% { transform: translate(-10px, 15px) rotate(-2deg); }
}
 
/* Mobile Responsive Optimized */
@media (max-width: 1024px) {
    .linktree-title { font-size: 3rem; }
    .linktree-desc { font-size: 1.1rem; }
}
 
@media (max-width: 992px) {
    .linktree-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 20px;
        padding-top: 40px;
    }
    .linktree-content { order: -1; padding-left: 0; }
    .linktree-desc { margin-left: auto; margin-right: auto; }
    .linktree-visual { height: 450px; margin-top: 20px; transform: scale(0.85); }
    .phone-mockup { left: 50%; margin-left: -120px; }
    .atom { display: none; }
}
/* ── MEGA EXPLORER SCOLAIRE ── */
.home-section-header { text-align:center;margin-bottom:50px;position:relative;z-index:2; }
.home-section-tag {
  display:inline-flex;align-items:center;gap:10px;
  background:linear-gradient(90deg, rgba(124,58,237,0.1), rgba(236,72,153,0.1));
  color:#EC4899;border-radius:999px;padding:8px 24px;
  font-size:.78rem;font-weight:800;text-transform:uppercase;letter-spacing:.15em;
  margin-bottom:20px;backdrop-filter:blur(8px);
}
.home-section-title {
  font-family:'Outfit',sans-serif;font-size:clamp(1.8rem,5vw,2.6rem);font-weight:900;
  color:#1E1B4B;margin:0;line-height:1.1;letter-spacing:-.02em;
}
.home-section-title span {
  background:linear-gradient(90deg,#7C3AED 0%,#EC4899 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}

.mega-explorer-layout {
  display: flex; gap: 30px; align-items: flex-start;
  max-width: 1400px; margin: 0 auto;
  width: 100%; overflow: hidden;
}

/* Sidebar Accordion */
.explorer-sidebar {
  width: 280px; flex-shrink: 0;
  position: sticky; top: 100px;
}
.accordion-group {
  margin-bottom: 16px; background: white; border-radius: 20px;
  border: 2px solid #F0EEFF; overflow: hidden; transition: all 0.3s ease;
  box-shadow: 0 10px 30px rgba(124,58,237,0.03);
}
.accordion-group:hover { border-color: #E0D4FF; box-shadow: 0 10px 20px rgba(124,58,237,0.08); }
.accordion-header {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; background: transparent; border: none; cursor: pointer;
  font-family: 'Outfit', sans-serif; font-weight: 900; font-size: 1.1rem;
  color: #1E1B4B; transition: all 0.3s ease;
}
.accordion-header i.nav-icon { margin-right: 12px; transition: transform 0.3s; }
.accordion-header.active { background: linear-gradient(135deg, rgba(124,58,237,0.08), rgba(236,72,153,0.08)); color: #7C3AED; }
.accordion-header.active i.chevron-icon { transform: rotate(180deg); }
.accordion-content { display: none; padding: 10px 16px 16px 16px; }
.accordion-content.active { display: block; animation: slideDown 0.3s ease-out forwards; }
@keyframes slideDown { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }
.v-tab-container { display: flex; flex-direction: column; gap: 4px; }
.v-subtabs { display: none; padding-left: 12px; margin-top: 2px; flex-wrap: wrap; gap: 6px; }
.v-subtab {
  font-size: 0.75rem; font-weight: 700; padding: 4px 12px; border-radius: 999px;
  background: white; border: 1.5px solid #E5E7EB; color: #6B7280; cursor: pointer;
  transition: all 0.2s; font-family: 'Outfit', sans-serif;
}
.v-subtab:hover { border-color: #D8B4FE; color: #7C3AED; background: #F8F9FF; }
.v-subtab.active { background: #EDE9FE; color: #7C3AED; border-color: #A78BFA; }
.v-tab {
  display: flex; flex-direction: column; align-items: flex-start;
  padding: 12px 18px; background: white; border: 2px solid #F0EEFF;
  border-radius: 14px; cursor: pointer; text-align: left; transition: all 0.3s;
}
.v-tab:hover { border-color: #D8B4FE; transform: translateX(5px); box-shadow: 0 4px 15px rgba(124, 58, 237, 0.05); }
.v-tab.active {
  background: linear-gradient(135deg, #7C3AED, #6D28D9); border-color: transparent;
  box-shadow: 0 8px 20px rgba(124, 58, 237, 0.25); transform: translateX(8px);
}
.v-tab-label { font-family: 'Outfit', sans-serif; font-weight: 900; font-size: 1rem; color: #1E1B4B; transition: color 0.3s; }
.v-tab.active .v-tab-label { color: white; }
.v-tab-sub { font-size: 0.7rem; color: #6B7280; font-weight: 800; margin-top: 2px; }
.v-tab.active .v-tab-sub { color: rgba(255,255,255,0.8); }

/* Main Area */
.explorer-main { flex: 1; min-width: 0; }

/* Horizontal Tabs (Matières - Niveau 1) Carousel */
.h-tabs-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  position: relative;
}

.h-tabs-container {
  display: flex; 
  justify-content: flex-start; 
  gap: 10px; 
  padding: 0;
  flex: 1;
  /* Carrousel horizontal avec glissement */
  overflow-x: auto;
  overflow-y: hidden;
  scroll-behavior: smooth;
  scrollbar-width: none;
  position: relative;
  -webkit-overflow-scrolling: touch;
  /* Masquer la scrollbar */
  -ms-overflow-style: none;
}
.h-tabs-container::-webkit-scrollbar {
  display: none;
}

/* Gradient overlays pour effet élégant */
.h-tabs-container::before,
.h-tabs-container::after {
  content: '';
  position: absolute;
  top: 0;
  width: 30px;
  height: 100%;
  pointer-events: none;
  z-index: 5;
}
.h-tabs-container::before {
  left: 0;
  background: linear-gradient(90deg, rgba(248,249,255,1) 0%, rgba(248,249,255,0) 100%);
}
.h-tabs-container::after {
  right: 0;
  background: linear-gradient(90deg, rgba(248,249,255,0) 0%, rgba(248,249,255,1) 100%);
}

/* Boutons de navigation avec design moderne */
.carousel-arrow {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 2px solid #E5E7EB;
  background: white;
  color: #7C3AED;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  font-size: 1.1rem;
  font-weight: 900;
}
.carousel-arrow:hover:not(.disabled) {
  border-color: #7C3AED;
  background: linear-gradient(135deg, #7C3AED, #6D28D9);
  color: white;
  transform: scale(1.1);
  box-shadow: 0 8px 20px rgba(124,58,237,0.2);
}
.carousel-arrow:active:not(.disabled) {
  transform: scale(0.95);
}
.carousel-arrow.disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

.carousel-prev::before {
  content: '‹';
  font-size: 1.8rem;
  line-height: 1;
}

.carousel-next::before {
  content: '›';
  font-size: 1.8rem;
  line-height: 1;
}

.h-tab {
  white-space: nowrap; 
  padding: 8px 16px; 
  background: white; 
  border: 2px solid #E5E7EB;
  border-radius: 12px; 
  font-family: 'Outfit', sans-serif; 
  font-weight: 700; 
  font-size: 0.9rem;
  color: #4B5563; 
  cursor: pointer; 
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  display: flex; 
  align-items: center; 
  gap: 8px; 
  box-shadow: 0 2px 8px rgba(0,0,0,0.03);
  flex-shrink: 0;
  letter-spacing: 0.3px;
}
.h-tab:hover { 
  border-color: #A78BFA; 
  color: #7C3AED; 
  transform: translateY(-3px); 
  box-shadow: 0 6px 16px rgba(124,58,237,0.12); 
}
.h-tab.active { 
  background: linear-gradient(135deg, #7C3AED, #6D28D9); 
  color: white; 
  border-color: transparent; 
  box-shadow: 0 8px 20px rgba(124,58,237,0.3);
  transform: translateY(-2px);
}

/* Matière sans résultat pour le filtre courant */
.h-tab.h-tab-disabled {
  opacity: 0.38;
  cursor: not-allowed;
  background: #F3F4F6;
  border-color: #E5E7EB;
  color: #9CA3AF;
  transform: none !important;
  box-shadow: none !important;
}

/* Resource Type Tabs (Filtres - Niveau 1 — EN HAUT) */
.t-tabs-container {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; 
  margin-bottom: 14px;
}
.t-tab {
  padding: 4px 12px; background: #F8F9FF; border: 1px solid #E5E7EB;
  border-radius: 999px; font-family: 'Outfit', sans-serif; font-weight: 700; font-size: 0.75rem;
  color: #6B7280; cursor: pointer; transition: all 0.2s ease-in-out; text-transform: uppercase; letter-spacing: 0.05em;
}
.t-tab:hover { background: white; border-color: #D8B4FE; color: #7C3AED; transform: translateY(-1px); box-shadow: 0 2px 8px rgba(124,58,237,0.08); }
.t-tab.active { background: #EDE9FE; color: #7C3AED; border-color: #A78BFA; box-shadow: inset 0 0 0 1px #A78BFA; }

/* Devoirs Cross Grid (Compact 5 cols) */
.devoirs-cross-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 16px;
}
@media(min-width: 1200px) {
  .devoirs-cross-grid { grid-template-columns: repeat(5, 1fr); }
}

.devoir-compact-card {
  background: white; border-radius: 16px; border: 1.5px solid #F0EEFF; border-top-width: 4px;
  padding: 14px 14px; display: flex; flex-direction: column; gap: 10px;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1); cursor: pointer; text-decoration: none; color: inherit;
  box-shadow: 0 4px 12px rgba(0,0,0,0.03); position: relative; overflow: hidden;
  height: 100%; z-index: 1;
}
.devoir-compact-card::before {
  content: ''; position: absolute; top:0; left:0; width:100%; height:100%; z-index:-1;
  transition: opacity 0.3s ease; opacity: 1;
}
.devoir-compact-card:hover { transform: translateY(-6px) scale(1.02); }

/* Color coding by type with subtle modern gradients */
.devoir-compact-card.type-devoir { border-top-color: #8B5CF6; }
.devoir-compact-card.type-devoir::before { background: linear-gradient(180deg, rgba(139,92,246,0.08) 0%, rgba(255,255,255,0) 60%); }
.devoir-compact-card.type-devoir:hover { box-shadow: 0 20px 40px rgba(139,92,246,0.15); border-color: #C4B5FD; }

.devoir-compact-card.type-serie { border-top-color: #EF4444; }
.devoir-compact-card.type-serie::before { background: linear-gradient(180deg, rgba(239,68,68,0.08) 0%, rgba(255,255,255,0) 60%); }
.devoir-compact-card.type-serie:hover { box-shadow: 0 20px 40px rgba(239,68,68,0.15); border-color: #FCA5A5; }

.devoir-compact-card.type-livre { border-top-color: #10B981; }
.devoir-compact-card.type-livre::before { background: linear-gradient(180deg, rgba(16,185,129,0.08) 0%, rgba(255,255,255,0) 60%); }
.devoir-compact-card.type-livre:hover { box-shadow: 0 20px 40px rgba(16,185,129,0.15); border-color: #6EE7B7; }

.devoir-compact-card.type-cours { border-top-color: #0EA5E9; }
.devoir-compact-card.type-cours::before { background: linear-gradient(180deg, rgba(14,165,233,0.08) 0%, rgba(255,255,255,0) 60%); }
.devoir-compact-card.type-cours:hover { box-shadow: 0 20px 40px rgba(14,165,233,0.15); border-color: #7DD3FC; }

.devoir-compact-card.type-bac { border-top-color: #F59E0B; }
.devoir-compact-card.type-bac::before { background: linear-gradient(180deg, rgba(245,158,11,0.08) 0%, rgba(255,255,255,0) 60%); }
.devoir-compact-card.type-bac:hover { box-shadow: 0 20px 40px rgba(245,158,11,0.15); border-color: #FBBF24; }

.dc-type { 
  font-size: 0.65rem; font-weight: 900; text-transform: uppercase; letter-spacing: 0.05em;
  padding: 4px 8px; border-radius: 8px; display: inline-block; width: max-content;
}
.type-devoir .dc-type     { background: #EDE9FE; color: #7C3AED; }
.type-serie .dc-type      { background: #FEE2E2; color: #EF4444; }
.type-livre .dc-type      { background: #ECFCCB; color: #65A30D; }
.type-cours .dc-type      { background: #E0F2FE; color: #0284C7; }
.type-bac .dc-type        { background: #FEF3C7; color: #F59E0B; }

/* Nouveaux types */
.devoir-compact-card.type-sujet_bac { border-top-color: #7C3AED; }
.devoir-compact-card.type-sujet_bac::before { background: linear-gradient(180deg, rgba(124,58,237,0.08) 0%, rgba(255,255,255,0) 60%); }
.devoir-compact-card.type-sujet_bac:hover { box-shadow: 0 20px 40px rgba(124,58,237,0.15); border-color: #C4B5FD; }

.devoir-compact-card.type-fiche { border-top-color: #8B5CF6; }
.devoir-compact-card.type-fiche::before { background: linear-gradient(180deg, rgba(139,92,246,0.08) 0%, rgba(255,255,255,0) 60%); }
.devoir-compact-card.type-fiche:hover { box-shadow: 0 20px 40px rgba(139,92,246,0.15); border-color: #C4B5FD; }

.devoir-compact-card.type-correction { border-top-color: #F97316; }
.devoir-compact-card.type-correction::before { background: linear-gradient(180deg, rgba(249,115,22,0.08) 0%, rgba(255,255,255,0) 60%); }
.devoir-compact-card.type-correction:hover { box-shadow: 0 20px 40px rgba(249,115,22,0.15); border-color: #FDBA74; }

.type-sujet_bac .dc-type  { background: transparent; color: #7C3AED; padding: 0; border-radius: 0; }
.type-fiche .dc-type      { background: #EDE9FE; color: #8B5CF6; }
.type-correction .dc-type { background: #FFEDD5; color: #F97316; }

.dc-mat { font-size: 0.75rem; font-weight: 800; color: #8B5CF6; line-height: 1.2; }
.dc-title { font-family: 'Outfit', sans-serif; font-size: 0.95rem; font-weight: 700; line-height: 1.3; color: #1E1B4B; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.dc-meta { display: flex; align-items: center; justify-content: space-between; font-size: 0.75rem; color: #6B7280; font-weight: 600; margin-top: auto; }

.empty-state { text-align:center; padding: 60px 20px; background: rgba(255,255,255,0.6); border-radius: 24px; border: 2px dashed #E5E7EB; width: 100%; grid-column: 1 / -1; }

@media(max-width: 992px) {
  .mega-explorer-layout { flex-direction: column; width: 100%; }
  .explorer-sidebar { width: 100%; position: relative; top: 0; margin-bottom: 10px; }
  .devoirs-cross-grid { grid-template-columns: repeat(3, 1fr); }
}
@media(max-width: 768px) {
  .mega-explorer-layout { gap: 16px; overflow: hidden; }
  .explorer-main { min-width: 0; width: 100%; overflow: hidden; }
  .h-tabs-container {
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    justify-content: flex-start !important;
    scrollbar-width: none;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
  }
  .h-tabs-container::-webkit-scrollbar { display: none; }
  .h-tab { flex-shrink: 0; }
  .t-tabs-container {
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    justify-content: flex-start !important;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .t-tabs-container::-webkit-scrollbar { display: none; }
  .t-tab { flex-shrink: 0; }
  .devoirs-cross-grid { grid-template-columns: repeat(2, 1fr); }
  /* Sidebar accordion : scroll horizontal pour les sous-onglets */
  .v-subtabs {
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .v-subtabs::-webkit-scrollbar { display: none; }
  .v-subtab { flex-shrink: 0; }
  /* Limiter la hauteur de la grille de ressources */
  .devoirs-cross-grid {
    max-height: 480px;
    overflow-y: auto;
    scrollbar-width: thin;
  }
}
@media(max-width: 480px) {
  .devoirs-cross-grid { grid-template-columns: 1fr; max-height: 400px; }
}
.how-it-works-section { padding: 100px 0; background: #FFF; position: relative; overflow: hidden; }
.how-it-works-section::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 100px;
  background: linear-gradient(180deg, #F8F9FF 0%, transparent 100%);
}

.timeline-modern { 
  display: flex; justify-content: space-between; gap: 40px; position: relative; 
  max-width: 1000px; margin: 0 auto;
}
/* Connection Line */
.timeline-modern-line {
  position: absolute; top: 50px; left: 50px; right: 50px; height: 3px;
  background: #F0EEFF; z-index: 1;
}
.timeline-modern-line-fill {
  height: 100%; background: linear-gradient(90deg, #7C3AED, #EC4899);
  width: 0%; transition: width 2s cubic-bezier(0.2, 1, 0.2, 1);
}

.timeline-step-modern {
  flex: 1; text-align: center; position: relative; z-index: 2;
  transition: all 0.5s cubic-bezier(0.2, 1, 0.2, 1);
}

.step-num-wrap {
  position: relative; width: 100px; height: 100px; margin: 0 auto 24px;
}
.step-num-circle {
  width: 100%; height: 100%; border-radius: 50%;
  background: white; border: 2px solid #F0EEFF;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Outfit', sans-serif; font-size: 2.2rem; font-weight: 900;
  color: #DDD6FE; transition: all 0.5s cubic-bezier(0.2, 1, 0.2, 1);
  box-shadow: 0 10px 25px rgba(0,0,0,0.03);
}
.step-icon-float {
  position: absolute; bottom: -10px; right: -5px;
  width: 44px; height: 44px; border-radius: 14px;
  background: white; border: 1.5px solid #F0EEFF;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; color: #7C3AED;
  box-shadow: 0 8px 20px rgba(0,0,0,0.08);
  transition: all 0.5s cubic-bezier(0.2, 1, 0.2, 1);
}

.timeline-step-modern:hover .step-num-circle {
  border-color: #7C3AED; color: #7C3AED; transform: scale(1.05);
  box-shadow: 0 15px 35px rgba(124,58,237,0.15);
}
.timeline-step-modern:hover .step-icon-float {
  background: #7C3AED; color: white; border-color: #7C3AED;
  transform: translateY(-5px) rotate(10deg);
}

.step-title-modern {
  font-family: 'Outfit', sans-serif; font-weight: 900; font-size: 1.2rem;
  color: #1E1B4B; margin-bottom: 10px;
}
.step-desc-modern {
  font-size: 0.9rem; color: #6B7280; line-height: 1.6;
  max-width: 220px; margin: 0 auto;
}

/* Active State */
.timeline-step-modern.active .step-num-circle {
  background: linear-gradient(135deg, #7C3AED, #6D28D9);
  color: white; border-color: transparent;
  box-shadow: 0 20px 40px rgba(124,58,237,0.3);
}

@media(max-width:1024px){
  .timeline-modern { flex-direction: column; gap: 60px; }
  .timeline-modern-line { display: none; }
  .step-num-wrap { margin-bottom: 16px; }
}
/* ── Quiz mini ── */
.quiz-mini { background:white;border-radius:24px;padding:32px;box-shadow:0 12px 48px rgba(124,58,237,0.15);border:2px solid #E5E7EB;max-width:700px;margin:0 auto; }
@keyframes correctPop { 0%,100%{transform:scale(1)} 50%{transform:scale(1.04)} }
@keyframes wrongShake { 0%,100%{transform:translateX(0)} 25%{transform:translateX(-8px)} 75%{transform:translateX(8px)} }
.quiz-option.correct { animation:correctPop 0.4s; }
.quiz-option.wrong { animation:wrongShake 0.4s; }
.search-shortcut-btn {
          font-size:.78rem;
          background:white;
          border:1.5px solid #DDD6FE;
          color:#7C3AED;
          padding:4px 12px;
          border-radius:999px;
          text-decoration:none;
          font-weight:700;
          transition:all .2s;
          display: inline-block;
        }
        .search-shortcut-btn:hover {
          background:#7C3AED !important;
          color:white !important;
        }
/* ── Trust Bar ── */
.trust-bar { 
  background: linear-gradient(135deg, #7C3AED 0%, #5B21B6 25%, #EC4899 50%, #F59E0B 75%, #7C3AED 100%);
  background-size: 300% 300%;
  color: white;
  padding: 28px 0;
  position: relative;
  overflow: hidden;
}
.trust-metrics { display:grid;grid-template-columns:repeat(4,1fr);max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1; }
.trust-metric { 
  text-align:center;
  padding:0 16px;
  border-right:1px solid rgba(255,255,255,0.2);
}
.trust-metric:last-child { border-right:none; }
.trust-metric-num { 
  font-family:'Nunito',sans-serif;
  font-size:2.4rem;
  font-weight:900;
  margin-bottom:4px;
  text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}
.trust-metric-label { 
  font-size:0.88rem;
  opacity:0.85;
  font-weight:600;
  text-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
@media(max-width:1024px){
  .trust-metrics{grid-template-columns:repeat(2,1fr);gap:16px;}
  .trust-metric{border-right:none;border-bottom:1px solid rgba(255,255,255,0.2);padding-bottom:16px;}
  .trust-metric:nth-child(3),.trust-metric:nth-child(4){border-bottom:none;}
}
@media(max-width:768px){
  .trust-metrics{grid-template-columns:1fr;}
  .trust-metric{border-bottom:1px solid rgba(255,255,255,0.2);padding-bottom:14px;}
  .trust-metric:last-child{border-bottom:none;}
}
/* ── Trust Bar ── */
@keyframes trust-gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes trust-glow {
  0%, 100% { box-shadow: 0 4px 20px rgba(124, 58, 237, 0.3), inset 0 1px 0 rgba(255,255,255,0.1); }
  50% { box-shadow: 0 8px 40px rgba(124, 58, 237, 0.6), inset 0 1px 0 rgba(255,255,255,0.2); }
}
@keyframes trust-float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-3px); }
}
.trust-bar { 
  background: linear-gradient(135deg, #7C3AED 0%, #5B21B6 25%, #EC4899 50%, #F59E0B 75%, #7C3AED 100%);
  background-size: 300% 300%;
  animation: trust-gradient-shift 8s ease infinite, trust-glow 3s ease-in-out infinite;
  color: white;
  padding: 28px 0;
  position: relative;
  overflow: hidden;
}
.trust-bar::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  animation: trust-shimmer 3s infinite;
}
@keyframes trust-shimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}
.trust-metrics { display:grid;grid-template-columns:repeat(4,1fr);max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1; }
.trust-metric { 
  text-align:center;
  padding:0 16px;
  border-right:1px solid rgba(255,255,255,0.2);
  animation: trust-float 3s ease-in-out infinite;
}
.trust-metric:nth-child(2) { animation-delay: 0.2s; }
.trust-metric:nth-child(3) { animation-delay: 0.4s; }
.trust-metric:nth-child(4) { animation-delay: 0.6s; }
.trust-metric:last-child { border-right:none; }
.trust-metric-num { 
  font-family:'Nunito',sans-serif;
  font-size:2.4rem;
  font-weight:900;
  margin-bottom:4px;
  text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}
.trust-metric-label { 
  font-size:0.88rem;
  opacity:0.85;
  font-weight:600;
  text-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
@media(max-width:1024px){
  .trust-metrics{grid-template-columns:repeat(2,1fr);gap:16px;}
  .trust-metric{border-right:none;border-bottom:1px solid rgba(255,255,255,0.2);padding-bottom:16px;}
  .trust-metric:nth-child(3),.trust-metric:nth-child(4){border-bottom:none;}
}
@media(max-width:768px){
  .trust-metrics{grid-template-columns:1fr;}
  .trust-metric{border-bottom:1px solid rgba(255,255,255,0.2);padding-bottom:14px;}
  .trust-metric:last-child{border-bottom:none;}
}
@keyframes bac-float { 0%,100%{transform:translateY(0) rotate(0deg)} 50%{transform:translateY(-12px) rotate(4deg)} }
@keyframes bac-pulse-ring { 0%{transform:scale(1);opacity:.7} 100%{transform:scale(2.5);opacity:0} }
@keyframes bac-flip {
  0%{transform:rotateX(0) scale(1)}
  50%{transform:rotateX(-90deg) scale(.9)}
  100%{transform:rotateX(0) scale(1)}
}
@keyframes bac-shimmer { 0%{background-position:-200% 0} 100%{background-position:200% 0} }
@keyframes bac-particle { 
  0%{transform:translate(0,0) scale(1);opacity:0} 
  20%{opacity:.6}
  80%{opacity:.6}
  100%{transform:translate(var(--tx),var(--ty)) scale(0);opacity:0} 
}
@keyframes bac-glow-violet {
  0%,100%{box-shadow:0 10px 40px rgba(124,58,237,.3),0 0 0 1px rgba(167,139,250,.2),inset 0 1px 0 rgba(255,255,255,.1)}
  50%{box-shadow:0 20px 60px rgba(124,58,237,.55),0 0 0 1px rgba(167,139,250,.4),inset 0 1px 0 rgba(255,255,255,.15)}
}
@keyframes bac-glow-cyan {
  0%,100%{box-shadow:0 10px 40px rgba(6,182,212,.3),0 0 0 1px rgba(34,211,238,.2),inset 0 1px 0 rgba(255,255,255,.1)}
  50%{box-shadow:0 20px 60px rgba(6,182,212,.55),0 0 0 1px rgba(34,211,238,.4),inset 0 1px 0 rgba(255,255,255,.15)}
}
@keyframes bac-nebula-spin { 0%{transform:rotate(0deg) scale(1)} 50%{transform:rotate(180deg) scale(1.2)} 100%{transform:rotate(360deg) scale(1)} }

.bac-countdown-section {
  padding:80px 0 100px;
  background:#050308;
  position:relative;overflow:hidden;
  perspective:1000px;
}
/* Mesh Gradient Background */
.bac-mesh-bg {
  position:absolute;inset:0;z-index:1;
  background:#050308;
  overflow:hidden;
}
.bac-nebula {
  position:absolute;border-radius:50%;filter:blur(100px);opacity:0.25;
  animation:bac-nebula-spin 25s linear infinite;
}
.nebula-1 { width:600px;height:600px;background:#6D28D9;top:-100px;left:-100px;animation-duration:35s; }
.nebula-2 { width:500px;height:500px;background:#0891B2;bottom:-100px;right:-100px;animation-duration:45s;animation-direction:reverse; }
.nebula-3 { width:400px;height:400px;background:#EC4899;top:40%;left:50%;opacity:0.15;animation-duration:30s; }

.bac-countdown-section::after {
  content:'';position:absolute;inset:0;z-index:2;
  background-image:radial-gradient(rgba(255,255,255,0.05) 1px,transparent 1px);
  background-size:32px 32px;
  mask-image:radial-gradient(ellipse 80% 80% at 50% 50%,black,transparent);
}

.bac-cd-header { text-align:center;margin-bottom:60px;position:relative;z-index:10; }
.bac-cd-tag {
  display:inline-flex;align-items:center;gap:10px;
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.1);
  color:rgba(255,255,255,0.8);border-radius:999px;padding:8px 24px;
  font-size:.78rem;font-weight:800;text-transform:uppercase;letter-spacing:.15em;
  margin-bottom:20px;backdrop-filter:blur(10px);
  box-shadow:0 10px 30px rgba(0,0,0,0.3);
}
.bac-cd-title {
  font-family:'Outfit',sans-serif;font-size:clamp(1.8rem,5vw,2.8rem);font-weight:900;
  color:white;margin:0;line-height:1.1;letter-spacing:-.03em;
}
.bac-cd-title span {
  background:linear-gradient(90deg,#C4B5FD 0%,#F9A8D4 50%,#818CF8 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
  filter:drop-shadow(0 0 20px rgba(167,139,250,0.3));
}

.bac-cd-cards {
  display:flex;gap:32px;justify-content:center;flex-wrap:wrap;
  position:relative;z-index:10;max-width:1100px;margin:0 auto;padding:0 20px;
}

.bac-cd-card {
  flex:1;min-width:300px;max-width:480px;
  border-radius:40px;padding:48px 40px 40px;
  position:relative;overflow:hidden;
  transition:transform .5s cubic-bezier(.2,1,.2,1), box-shadow .5s ease;
  text-decoration:none;display:block;
  background:rgba(255,255,255,0.03);
  backdrop-filter:blur(30px);
  border:1px solid rgba(255,255,255,0.1);
  transform-style:preserve-3d;
}
.bac-cd-card:hover { 
  transform:translateY(-15px);
  border-color:rgba(255,255,255,0.2);
}

/* Border Glow Effect */
.bac-cd-card::before {
  content:'';position:absolute;inset:0;
  background:radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255,255,255,0.1), transparent 40%);
  z-index:3;pointer-events:none;opacity:0;transition:opacity .5s;
}
.bac-cd-card:hover::before { opacity:1; }

.bac-cd-card.violet { animation:bac-glow-violet 6s infinite; }
.bac-cd-card.rouge  { animation:bac-glow-cyan 6s infinite; animation-delay: 1s; }

.bac-cd-card-icon {
  font-size:3rem;margin-bottom:20px;display:inline-block;
  animation:bac-float 4s ease-in-out infinite;
  filter:drop-shadow(0 10px 20px rgba(0,0,0,0.5));
  transition:transform .4s cubic-bezier(.2,1,.2,1);
  transform:translateZ(40px);
}
.bac-cd-card:hover .bac-cd-card-icon { transform:translateZ(60px) scale(1.1); }

.bac-cd-card-label {
  font-family:'Outfit',sans-serif;font-weight:900;font-size:1.4rem;
  margin-bottom:32px;letter-spacing:-.01em;display:block;
  color:white;text-transform:none;
}

.bac-cd-digits {
  display:flex;gap:12px;justify-content:center;
  margin-bottom:28px;align-items:center;
  transform:translateZ(30px);
}
.bac-cd-unit { text-align:center; flex:1; }
.bac-cd-num {
  font-family:'Outfit',sans-serif;font-size:clamp(2.2rem,5vw,3.2rem);font-weight:900;
  border-radius:24px;padding:16px 4px;width:100%;
  position:relative;overflow:hidden;
  transition:all .3s ease;line-height:1;
  background:rgba(0,0,0,0.3);
  border:1px solid rgba(255,255,255,0.05);
  box-shadow:inset 0 0 20px rgba(0,0,0,0.5);
}
.bac-cd-num.flip { animation:bac-flip .5s ease; }

.bac-cd-card.violet .bac-cd-num { color:#C4B5FD; text-shadow:0 0 30px rgba(167,139,250,0.6); }
.bac-cd-card.rouge  .bac-cd-num { color:#67E8F9; text-shadow:0 0 30px rgba(34,211,238,0.6); }

.bac-cd-num::after {
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(255,255,255,0.1),transparent 60%);
  pointer-events:none;
}

.bac-cd-sep {
  font-family:'Outfit',sans-serif;font-size:2.5rem;font-weight:200;
  color:rgba(255,255,255,.2);align-self:center;
  margin-top:-24px;line-height:1;
}

.bac-cd-unit-label {
  font-size:.68rem;font-weight:800;color:rgba(255,255,255,0.5);
  text-transform:uppercase;letter-spacing:.2em;margin-top:12px;
}

.bac-cd-date-label {
  font-size:.9rem;font-weight:600;margin-top:10px;
  color:rgba(255,255,255,0.6);
  transform:translateZ(20px);
}

.bac-cd-progress {
  margin-top:24px;height:8px;border-radius:999px;
  background:rgba(255,255,255,.05);overflow:hidden;
  box-shadow:inset 0 2px 4px rgba(0,0,0,0.3);
  transform:translateZ(10px);
}
.bac-cd-progress-bar { height:100%;border-radius:999px;transition:width 1s linear; position:relative; }
.bac-cd-progress-bar::after {
  content:'';position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.4),transparent);
  animation:bac-shimmer 2s linear infinite;
}

.bac-cd-card.violet .bac-cd-progress-bar { background:linear-gradient(90deg,#7C3AED,#A78BFA); box-shadow:0 0 15px rgba(124,58,237,0.5); }
.bac-cd-card.rouge  .bac-cd-progress-bar { background:linear-gradient(90deg,#0891B2,#22D3EE); box-shadow:0 0 15px rgba(6,182,212,0.5); }

.bac-cd-live {
  display:inline-flex;align-items:center;gap:10px;
  font-size:.78rem;font-weight:800;color:rgba(255,255,255,.7);
  margin-top:20px;background:rgba(255,255,255,0.05);padding:6px 14px;border-radius:999px;
  transform:translateZ(20px);
}
.bac-cd-live-dot {
  width:10px;height:10px;border-radius:50%;background:#34D399;
  position:relative;flex-shrink:0;
  box-shadow:0 0 10px rgba(52,211,153,.8);
}
.bac-cd-live-dot::after {
  content:'';position:absolute;inset:-5px;border-radius:50%;
  border:2px solid rgba(52,211,153,.6);
  animation:bac-pulse-ring 2s ease-out infinite;
}

@media(max-width:768px){
  .bac-cd-cards{gap:20px;}
  .bac-cd-card{padding:32px 24px;border-radius:32px;}
  .bac-cd-num{font-size:2rem;padding:12px 2px;}
  .bac-cd-sep{font-size:2rem;margin-top:-18px;}
}
/* ── UNIFIED SLIDER HERO ── */
.unified-slider-wrapper {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: linear-gradient(-45deg, #f5f3ff, #ede9fe, #ddd6fe, #e0e7ff);
  background-size: 400% 400%;
  animation: gradientBg 15s ease infinite;
  min-height: 600px;
  display: flex;
  align-items: center;
  padding: 60px 0;
}

/* ── SLIDE 4 : 3D RESOURCE CARDS ── */
.res3d-scene {
  perspective: 1100px;
  perspective-origin: 50% 40%;
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  height: 380px;
  position: relative;
}
.res3d-stack {
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  position: relative;
}
.res3d-card {
  position: absolute;
  width: 220px;
  border-radius: 24px;
  padding: 28px 22px 22px;
  color: white;
  box-shadow: 0 30px 60px rgba(0,0,0,.22), 0 0 0 1px rgba(255,255,255,.12);
  transition: transform .5s cubic-bezier(.34,1.56,.64,1), box-shadow .4s ease;
  cursor: pointer;
  user-select: none;
  will-change: transform;
  backface-visibility: hidden;
}
.res3d-card:hover {
  box-shadow: 0 40px 80px rgba(0,0,0,.28), 0 0 0 2px rgba(255,255,255,.25);
}
/* Card positions — fan layout with depth */
.res3d-card:nth-child(1) { /* Devoirs — front-left */
  background: linear-gradient(135deg, #7C3AED 0%, #5B21B6 100%);
  left: 5%;
  top: 10%;
  transform: rotateY(18deg) rotateX(-6deg) translateZ(40px);
}
.res3d-card:nth-child(2) { /* Cours — center-front */
  background: linear-gradient(135deg, #0EA5E9 0%, #0369A1 100%);
  left: 50%;
  top: 5%;
  transform: translateX(-50%) rotateX(-4deg) translateZ(80px);
  z-index: 2;
}
.res3d-card:nth-child(3) { /* Séries — right */
  background: linear-gradient(135deg, #10B981 0%, #065F46 100%);
  right: 5%;
  top: 10%;
  transform: rotateY(-18deg) rotateX(-6deg) translateZ(40px);
}
.res3d-card:nth-child(4) { /* Vidéo — back-center */
  background: linear-gradient(135deg, #FF6B6B 0%, #B91C1C 100%);
  left: 50%;
  top: 18%;
  transform: translateX(-50%) rotateX(-8deg) translateZ(-40px) scale(.88);
  z-index: 0;
  opacity: .82;
}
/* Hover tilt effect (JS handles this) */
.res3d-card.hovered { z-index: 10; }
.res3d-card.hovered:nth-child(1) { transform: rotateY(5deg) rotateX(-3deg) translateZ(120px) scale(1.04); }
.res3d-card.hovered:nth-child(2) { transform: translateX(-50%) rotateX(-2deg) translateZ(160px) scale(1.06); }
.res3d-card.hovered:nth-child(3) { transform: rotateY(-5deg) rotateX(-3deg) translateZ(120px) scale(1.04); }
.res3d-card.hovered:nth-child(4) { transform: translateX(-50%) rotateX(-4deg) translateZ(60px) scale(1); opacity:1; }

.res3d-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: rgba(255,255,255,.22);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
  box-shadow: 0 4px 12px rgba(0,0,0,.15);
}
.res3d-type { font-size: .68rem; font-weight: 900; text-transform: uppercase; letter-spacing: .1em; opacity: .75; margin-bottom: 6px; }
.res3d-title { font-family: 'Nunito', sans-serif; font-weight: 900; font-size: 1.05rem; line-height: 1.25; margin-bottom: 10px; }
.res3d-meta { font-size: .75rem; opacity: .7; font-weight: 600; }
.res3d-badge {
  display: inline-flex; align-items: center; gap: 4px;
  background: rgba(255,255,255,.2); border-radius: 999px;
  padding: 3px 10px; font-size: .7rem; font-weight: 800;
  margin-top: 12px;
}
/* Slide 4 layout */
.res3d-wrapper {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  align-items: center; width: 100%; max-width: 1160px; margin: 0 auto;
}
.res3d-text-side { }
.res3d-text-side h2 {
  font-family: 'Nunito', sans-serif; font-weight: 900;
  font-size: clamp(2rem, 3.5vw, 3rem); color: var(--dark); line-height: 1.1; margin-bottom: 16px;
}
.res3d-text-side p {
  font-size: 1.05rem; color: var(--muted); line-height: 1.65; margin-bottom: 28px;
}
.res3d-pills {
  display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px;
}
.res3d-pill {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 16px; border-radius: 999px; font-size: .82rem; font-weight: 800;
  border: 2px solid; transition: all .2s;
}
.res3d-pill:hover { transform: translateY(-2px); }
.res3d-pill-violet { background: #EDE9FE; color: #7C3AED; border-color: #DDD6FE; }
.res3d-pill-blue   { background: #E0F2FE; color: #0369A1; border-color: #BAE6FD; }
.res3d-pill-green  { background: #DCFCE7; color: #065F46; border-color: #A7F3D0; }
.res3d-pill-red    { background: #FFE4E4; color: #B91C1C; border-color: #FCA5A5; }

/* Floating number badges on the 3D scene */
.res3d-float-badge {
  position: absolute; background: white; border-radius: 14px;
  padding: 8px 14px; box-shadow: 0 8px 24px rgba(0,0,0,.12);
  font-family: 'Nunito', sans-serif; font-weight: 900;
  z-index: 20; pointer-events: none;
  animation: floatAnim 5s ease-in-out infinite alternate;
}
.res3d-float-badge.b1 { bottom: 0; left: 0; font-size: .8rem; color: var(--violet); animation-delay: 0s; }
.res3d-float-badge.b2 { top: 0; right: -20px; font-size: .8rem; color: var(--electric); animation-delay: 1.5s; }

@media (max-width: 992px) {
  .res3d-wrapper { grid-template-columns: 1fr; text-align: center; gap: 24px; }
  .res3d-scene { height: 260px; }
  .res3d-pills { justify-content: center; }
  .res3d-card { width: 160px; padding: 18px 14px; }
  .res3d-card:nth-child(1) { left: 0%; }
  .res3d-card:nth-child(3) { right: 0%; }
  .res3d-title { font-size: .9rem; }
  .res3d-float-badge { display: none; }
}
@keyframes gradientBg {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Background Shapes (Subtle Educational Icons) */
.slider-bg-shape {
  position: absolute;
  color: var(--violet);
  opacity: 0.04;
  pointer-events: none;
  filter: blur(1px);
  z-index: 0;
}
.shape-1 { top: 10%; left: 5%; width: 250px; height: 250px; transform: rotate(-15deg); animation: floatAnim 10s ease-in-out infinite alternate; }
.shape-2 { bottom: 5%; right: 10%; width: 300px; height: 300px; transform: rotate(10deg); animation: floatAnim 12s ease-in-out infinite alternate-reverse; }
.shape-3 { top: 40%; left: 45%; width: 150px; height: 150px; transform: rotate(45deg); animation: floatAnim 15s ease-in-out infinite alternate; }
@keyframes floatAnim {
  0% { transform: translateY(0) rotate(0); }
  100% { transform: translateY(-20px) rotate(15deg); }
}

.unified-slider-container {
  width: 100%;
  position: relative;
  z-index: 10;
  max-width: 100vw;
  overflow: hidden;
}

.unified-slider-track {
  display: flex;
  /* width: 500% force le track à contenir les 5 slides sans débordement */
  width: 500%;
  transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.unified-slide {
  /* Chaque slide = 1/5 du track = 100% du viewport */
  flex: 0 0 calc(100% / 5);
  width: calc(100% / 5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  box-sizing: border-box;
}

/* Navigation Arrows */
.unified-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: white;
  border: 1px solid rgba(124,58,237, 0.2);
  color: var(--violet);
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 50;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 15px rgba(124,58,237,0.15);
}
.unified-arrow:hover {
  background: var(--violet);
  color: white;
  transform: translateY(-50%) scale(1.1);
  box-shadow: 0 8px 25px rgba(124,58,237,0.3);
}
.unified-arrow.prev { left: 30px; }
.unified-arrow.next { right: 30px; }

/* Pagination Dots */
.unified-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 50;
}
.unified-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(124,58,237, 0.2);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.unified-dot.active {
  background: var(--violet);
  width: 32px;
  border-radius: 6px;
}

/* UNIFIED BUTTON STYLE */
.unified-slide .btn-primary, .unified-slide .btn-linktree {
  background: linear-gradient(135deg, var(--violet) 0%, #5B21B6 100%) !important;
  color: white !important;
  border: none !important;
  padding: 14px 32px;
  border-radius: 14px;
  font-weight: 800;
  font-family: 'Nunito', sans-serif;
  box-shadow: 0 4px 15px rgba(124,58,237,0.3) !important;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.unified-slide .btn-primary:hover, .unified-slide .btn-linktree:hover {
  transform: translateY(-3px) !important;
  box-shadow: 0 8px 25px rgba(124,58,237,0.4) !important;
}

/* SLIDE 1: Hero Adjustments */
.hero-grid { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; width:100%; max-width:1160px; margin:0 auto; }
.hero-label { font-size: 0.9rem; font-weight: 800; color: var(--violet); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; }
.hero-title { font-size: 3.5rem; font-weight: 900; color: var(--dark); line-height: 1.1; margin-bottom: 20px; font-family: 'Nunito', sans-serif; }
.hero-subtitle { font-size: 1.1rem; color: var(--muted); line-height: 1.6; margin-bottom: 30px; }

/* SLIDE 3: Countdown Adjustments */
.cd-wrapper { max-width: 1000px; margin: 0 auto; text-align: center; }
.bac-cd-title { font-family:'Nunito',sans-serif;font-size:clamp(1.8rem,3.5vw,2.8rem);font-weight:900;color:var(--dark);margin-bottom:40px;line-height:1.2; }
.bac-cd-cards { display:flex;gap:30px;justify-content:center;flex-wrap:wrap; }
.bac-cd-card {
  flex: 1; min-width: 350px; border-radius: 32px; padding: 40px;
  background: rgba(255, 255, 255, 0.85); backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 1);
  box-shadow: 0 25px 50px rgba(124, 58, 237, 0.1);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  text-decoration: none; display: block; position: relative; overflow: hidden;
}
.bac-cd-card::before {
  content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 6px;
  background: linear-gradient(90deg, var(--violet), var(--lime));
}
.bac-cd-card:hover { transform: translateY(-15px) scale(1.02); box-shadow: 0 35px 60px rgba(124, 58, 237, 0.2); }
.bac-cd-digits { display:flex;gap:12px;justify-content:center;margin:30px 0;align-items:center; }
.bac-cd-num {
  font-family:'Nunito',sans-serif;font-size:3rem;font-weight:900;border-radius:20px;padding:15px 10px;min-width:80px;
  background: linear-gradient(135deg, var(--violet) 0%, #5B21B6 100%);
  color: white; box-shadow: 0 10px 20px rgba(124, 58, 237, 0.3); text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}
.bac-cd-unit-label { font-size:0.85rem;font-weight:900;color:var(--violet);text-transform:uppercase;margin-top:12px;letter-spacing:1px; }
.bac-cd-sep { font-size:2.5rem;font-weight:900;color:var(--violet);margin-top:-30px;animation: blink 2s infinite ease-in-out; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.2; } }
.cd-badge {
  display: inline-flex; align-items: center; gap: 10px;
  background: linear-gradient(135deg, var(--violet), #5B21B6);
  color: white; padding: 8px 24px; border-radius: 50px; font-weight: 900; font-size: 0.9rem; text-transform: uppercase; margin-bottom: 25px;
  box-shadow: 0 10px 20px rgba(124, 58, 237, 0.3);
  animation: floatAnim 4s ease-in-out infinite alternate;
}
.cd-badge i[data-lucide],
.cd-badge i[data-lucide] svg {
  width: 20px !important;
  height: 20px !important;
}
.bac-cd-card i[data-lucide],
.bac-cd-card i[data-lucide] svg {
  width: 40px !important;
  height: 40px !important;
  display: inline-block !important;
}
@media (max-width: 768px) {
  .bac-cd-card i[data-lucide],
  .bac-cd-card i[data-lucide] svg {
    width: 32px !important;
    height: 32px !important;
  }
}
.unified-slider-wrapper i[data-lucide] {
  display: inline-flex !important;
}
.unified-slider-wrapper i[data-lucide] svg {
  width: 100% !important;
  height: 100% !important;
}

/* SLIDE 2: Linktree Adjustments */
.linktree-wrapper { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; width:100%; max-width:1160px; margin:0 auto; }
.linktree-title { font-size:3.5rem; font-weight:900; color:var(--dark); line-height:1.1; margin-bottom:20px; font-family:'Nunito',sans-serif; }
.linktree-desc { font-size:1.1rem; color:var(--muted); line-height:1.6; margin-bottom:30px; }
.linktree-visual { position: relative; height: 500px; display: flex; justify-content: center; align-items: center; }
.visual-container { position: relative; width: 100%; max-width: 500px; height: 100%; display: flex; justify-content: center; align-items: center; }
.phone-mockup { width:240px; height:480px; background:#111; border-radius:40px; padding:10px; box-shadow:0 40px 100px -20px rgba(0,0,0,0.3); transform:rotate(-10deg); animation:floatPhone 10s ease-in-out infinite; position:relative; z-index: 10; }
.phone-screen { width:100%; height:100%; background:linear-gradient(180deg, var(--violet) 0%, var(--dark) 100%); border-radius:32px; padding:30px 15px; display:flex; flex-direction:column; align-items:center; }
.avatar-img { width:70px; height:70px; border-radius:50%; background-size:contain; background-color:white; border:3px solid rgba(255,255,255,0.25); margin-bottom:15px; }
.profile-name { font-weight:900; font-size:1.4rem; margin-bottom:30px; color:var(--lime); }
.link-bar { width:100%; padding:12px; background:rgba(255,255,255,0.1); border-radius:40px; margin-bottom:15px; font-size:0.85rem; font-weight:800; display:flex; align-items:center; justify-content:center; gap:8px; color:white; }

/* Floating Elements (Linktree) */
.floating-element { position: absolute; }
.code-bracket { top: 20px; right: 40px; z-index: 15; animation: floatPara 12s ease-in-out infinite; }
.card-edu { bottom: 40px; left: 0; width: 220px; background: white; color: var(--dark); border-radius: 20px; padding: 12px; box-shadow: 0 30px 60px rgba(0,0,0,0.3); z-index: 20; transform: rotate(-5deg); animation: floatPara 15s ease-in-out infinite reverse; }
.edu-inner { display: flex; align-items: center; gap: 12px; }
.edu-img { width: 55px; height: 55px; display: flex; align-items: center; justify-content: center; border-radius: 10px; }
.edu-text { flex: 1; }
.edu-title { font-weight: 900; font-size: 1rem; color: var(--dark); }
.edu-sub { font-size: 0.75rem; opacity: 0.8; font-weight: 700; color: #6B7280; }
.edu-icon { color: var(--lime); opacity: 0.9; }
.edu-logo-corner { position: absolute; top: -10px; right: -10px; background: var(--violet); color: white; border-radius: 50%; width: 30px; height: 30px; display: flex; align-items: center; justify-content: center; box-shadow: 0 5px 15px rgba(0,0,0,0.2); }
.edu-logo-corner i { width: 16px; height: 16px; }
.social-icon { width: 54px; height: 54px; border-radius: 50%; display: flex; justify-content: center; align-items: center; background: white; color: var(--violet); box-shadow: 0 15px 30px rgba(0,0,0,0.2); z-index: 12; }
.social-icon i { width: 24px; height: 24px; }
.ig { right: 20px; top: 200px; animation: floatPara 9s ease-in-out infinite 0.5s; }
.spot { right: 10px; top: 290px; animation: floatPara 11s ease-in-out infinite 1s; }
.vim { right: 30px; top: 380px; animation: floatPara 10s ease-in-out infinite 1.5s; }
.atom { top: 150px; left: -20px; z-index: 5; animation: floatPara 14s ease-in-out infinite 1s; }
@keyframes floatPhone { 0%, 100% { transform: rotate(-10deg) translateY(0); } 50% { transform: rotate(-8deg) translateY(-30px); } }
@keyframes floatPara { 0%, 100% { transform: translate(0, 0) rotate(0); } 33% { transform: translate(10px, -15px) rotate(2deg); } 66% { transform: translate(-10px, 15px) rotate(-2deg); } }

@media(max-width:992px) {
  .hero-grid, .linktree-wrapper { grid-template-columns:1fr; text-align:center; gap:30px; }
  .unified-slide { padding-top: 40px; padding-bottom: 40px; }
  .unified-arrow { display: none; }
  .hero-title, .linktree-title { font-size: 2.5rem; }
  .bac-cd-card { min-width: 100%; }
}

/* ══ MOBILE CRITIQUE : affichage immédiat du slider ══ */
@media (max-width: 768px) {
  /* Wrapper : hauteur auto, pas de min-height qui crée du vide */
  .unified-slider-wrapper {
    min-height: auto !important;
    padding: 28px 0 48px !important;
    display: block !important;
    /* Fond visible immédiatement */
    background: linear-gradient(135deg, #ede9fe 0%, #f5f3ff 100%) !important;
    animation: none !important;
  }
  /* Container : pleine largeur */
  .unified-slider-container {
    width: 100% !important;
    overflow: hidden !important;
  }
  /* Track : 500% pour contenir 5 slides */
  .unified-slider-track {
    display: flex !important;
    flex-wrap: nowrap !important;
    width: 500% !important;
    transition: transform 0.4s ease-in-out !important;
  }
  /* Chaque slide : 1/5 du track = 100% du viewport */
  .unified-slide {
    flex: 0 0 calc(100% / 5) !important;
    width: calc(100% / 5) !important;
    min-width: calc(100% / 5) !important;
    padding: 20px 16px 40px !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
    display: block !important;
  }
  /* Grilles → 1 colonne */
  .hero-grid,
  .linktree-wrapper {
    display: block !important;
    text-align: center !important;
  }
  /* Masquer les éléments décoratifs qui débordent */
  .hero-grid > div:last-child,
  .linktree-visual,
  .slider-bg-shape,
  .shape-1, .shape-2, .shape-3,
  .unified-arrow {
    display: none !important;
  }
  /* Titre hero */
  .hero-title {
    font-size: 1.7rem !important;
    line-height: 1.2 !important;
    margin-bottom: 12px !important;
  }
  .hero-subtitle {
    font-size: 0.9rem !important;
    margin-bottom: 16px !important;
  }
  /* Boutons CTA */
  .unified-slide .btn-primary {
    padding: 11px 20px !important;
    font-size: 0.88rem !important;
  }
  /* Countdown : cartes empilées */
  .bac-cd-cards {
    flex-direction: column !important;
    gap: 12px !important;
  }
  .bac-cd-card {
    min-width: unset !important;
    padding: 20px 14px !important;
    border-radius: 16px !important;
  }
  .bac-cd-num {
    font-size: 1.8rem !important;
    min-width: 50px !important;
    padding: 8px 6px !important;
    border-radius: 12px !important;
  }
  .bac-cd-title {
    font-size: 1.2rem !important;
    margin-bottom: 16px !important;
  }
  .bac-cd-digits { gap: 6px !important; margin: 16px 0 !important; }
  .bac-cd-sep { font-size: 1.5rem !important; margin-top: -16px !important; }
  /* Dots */
  .unified-dots {
    bottom: 10px !important;
    gap: 8px !important;
  }
  .unified-dot { width: 10px !important; height: 10px !important; }
  .unified-dot.active { width: 28px !important; }
  /* Linktree slide : juste le texte */
  .linktree-title { font-size: 1.5rem !important; }
  .linktree-desc { font-size: 0.88rem !important; }
  /* Slide 4 3D : masquer la scène 3D */
  .res3d-scene { display: none !important; }
  .res3d-wrapper { grid-template-columns: 1fr !important; text-align: center !important; gap: 16px !important; }
  .res3d-text-side h2 { font-size: 1.5rem !important; }
  .res3d-pills { justify-content: center !important; }
}