/* =============================================
   Al Handassa DZ — Plateforme Génie Civil & Architecture
   ============================================= */

:root {
  --primary: #1B3A6B;
  --primary-light: #2a5298;
  --secondary: #C8A142;
  --accent: #E63946;
  --green: #2ecc71;
  --dark: #0d1b2a;
  --gray-dark: #2c3e50;
  --gray: #64748b;
  --gray-light: #94a3b8;
  --bg: #f0f4f8;
  --bg-card: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-muted: #64748b;
  --shadow: 0 4px 24px rgba(27,58,107,0.10);
  --shadow-md: 0 8px 32px rgba(27,58,107,0.16);
  --shadow-lg: 0 16px 48px rgba(27,58,107,0.22);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --font: 'Segoe UI', 'Cairo', system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; overflow-x: hidden; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

body.rtl { direction: rtl; text-align: right; }
body.rtl .nav-links { flex-direction: row-reverse; }

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--primary-light); border-radius: 4px; }

/* ── UTILITIES ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-alt { background: var(--bg-card); }
.text-center { text-align: center; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: 999px; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.5px; }
.badge-primary { background: rgba(27,58,107,0.1); color: var(--primary); }
.badge-gold { background: rgba(200,161,66,0.15); color: #a07c1e; }
.badge-red { background: rgba(230,57,70,0.1); color: var(--accent); }
.badge-green { background: rgba(46,204,113,0.1); color: #16a34a; }

/* ── SECTION HEADER ── */
.section-header { margin-bottom: 52px; }
.section-header .label {
  display: inline-block;
  background: linear-gradient(135deg, rgba(27,58,107,0.1), rgba(200,161,66,0.1));
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 14px;
  border: 1px solid rgba(27,58,107,0.15);
}
.section-header h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  color: var(--dark);
  line-height: 1.2;
  margin-bottom: 14px;
}
.section-header h2 span { color: var(--secondary); }
.section-header p { font-size: 1.05rem; color: var(--text-muted); max-width: 580px; }
.section-header.text-center p { margin: 0 auto; }
.divider { width: 60px; height: 4px; background: linear-gradient(90deg, var(--primary), var(--secondary)); border-radius: 2px; margin: 16px 0; }
.divider-center { margin: 16px auto; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  box-shadow: 0 4px 16px rgba(27,58,107,0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(27,58,107,0.45); }
.btn-secondary {
  background: linear-gradient(135deg, var(--secondary), #e6b84a);
  color: white;
  box-shadow: 0 4px 16px rgba(200,161,66,0.35);
}
.btn-secondary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(200,161,66,0.45); }
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover { background: var(--primary); color: white; }
.btn-white {
  background: white;
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.18); }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-full { width: 100%; justify-content: center; }
.btn-icon { padding: 10px; border-radius: 50%; }

/* ── NAVBAR ── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
#navbar.scrolled {
  box-shadow: 0 2px 24px rgba(27,58,107,0.12);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}
.nav-logo-img {
  height: 64px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.18));
}
.logo-icon {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.4rem;
  box-shadow: 0 4px 12px rgba(27,58,107,0.3);
}
.logo-text { line-height: 1.1; }
.logo-text .name {
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--primary);
  letter-spacing: -0.5px;
}
.logo-text .name span { color: var(--secondary); }
.logo-text .tagline { font-size: 0.65rem; color: var(--gray); font-weight: 500; letter-spacing: 1px; text-transform: uppercase; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  flex: 1;
  justify-content: center;
}
.nav-links a {
  text-decoration: none;
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 8px;
  transition: var(--transition);
  white-space: nowrap;
}
.nav-links a:hover { color: var(--primary); background: rgba(27,58,107,0.06); }
.nav-links a.active { color: var(--primary); background: rgba(27,58,107,0.08); }

/* Dropdown Espace Entreprise */
.nav-dropdown { position: relative; }
.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(27,58,107,.12);
  list-style: none;
  padding: 6px 0;
  min-width: 200px;
  z-index: 200;
}
.nav-dropdown:hover .nav-dropdown-menu { display: block; }
.nav-dropdown-menu li a {
  display: block;
  padding: 9px 18px;
  font-size: 0.85rem;
  color: var(--text);
  border-radius: 0;
  white-space: nowrap;
}
.nav-dropdown-menu li a:hover { background: #f1f5ff; color: var(--primary); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  transition: var(--transition);
}
.lang-btn:hover { border-color: var(--primary); color: var(--primary); }

/* ── Lang switcher dropdown ── */
.lang-switcher {
  position: relative;
}
.lang-current {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 7px 12px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text);
  transition: var(--transition);
  white-space: nowrap;
}
.lang-current:hover { border-color: var(--primary); color: var(--primary); }
.lang-arrow { font-size: 0.65rem; opacity: .6; transition: transform .2s; }
.lang-switcher.open .lang-arrow { transform: rotate(180deg); }
.lang-menu {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(27,58,107,.12);
  list-style: none;
  padding: 6px 0;
  min-width: 140px;
  z-index: 300;
}
.lang-switcher.open .lang-menu { display: block; }
.lang-menu li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text);
  transition: background .15s;
}
.lang-menu li:hover { background: #f1f5ff; color: var(--primary); }
.lang-menu li.active { color: var(--primary); font-weight: 700; }
.cart-btn {
  position: relative;
  padding: 9px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  color: var(--text);
  transition: var(--transition);
  font-size: 1.1rem;
}
.cart-btn:hover { border-color: var(--primary); color: var(--primary); }
.cart-badge {
  position: absolute;
  top: -6px; right: -6px;
  background: var(--accent);
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
  width: 18px; height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: transparent;
  border: none;
}
.hamburger span {
  width: 24px; height: 2.5px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── HERO ── */
#hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--dark) 0%, var(--primary) 50%, #1a4a8a 100%);
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 72px;
}
.hero-bg-pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(200,161,66,0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255,255,255,0.04) 0%, transparent 40%),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 60px 0;
}
.hero-left {}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(200,161,66,0.15);
  border: 1px solid rgba(200,161,66,0.3);
  color: var(--secondary);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-badge .dot {
  width: 8px; height: 8px;
  background: var(--secondary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}
.hero-title {
  font-size: clamp(2.2rem, 4.5vw, 3.8rem);
  font-weight: 900;
  color: white;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.hero-title .highlight {
  background: linear-gradient(135deg, var(--secondary), #f0c842);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-title .line2 { display: block; }
.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 36px;
  max-width: 500px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.hero-stats {
  display: flex;
  gap: 32px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.stat-item {}
.stat-number {
  font-size: 2rem;
  font-weight: 900;
  color: var(--secondary);
  line-height: 1;
}
.stat-label { font-size: 0.8rem; color: rgba(255,255,255,0.6); margin-top: 4px; }
.hero-right {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.hero-card {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  transition: var(--transition);
}
.hero-card:hover {
  background: rgba(255,255,255,0.12);
  transform: translateX(-4px);
}
.hcard-top {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}
.hcard-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.hcard-icon.blue  { background: rgba(42,82,152,0.5); }
.hcard-icon.gold  { background: rgba(200,161,66,0.3); }
.hcard-icon.green { background: rgba(46,204,113,0.25); }
.hcard-info h4 { font-size: 0.95rem; font-weight: 700; color: white; }
.hcard-info p { font-size: 0.78rem; color: rgba(255,255,255,0.55); }
.hcard-norms {
  display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px;
}
.norm-tag {
  font-size: 0.7rem; font-weight: 600;
  padding: 3px 8px; border-radius: 20px;
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.8);
  border: 1px solid rgba(255,255,255,0.18);
  white-space: nowrap;
}

/* ── ANNOUNCEMENTS TICKER ── */
#ticker {
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  color: white;
  padding: 12px 0;
  overflow: hidden;
  position: relative;
}
.ticker-inner { display: flex; align-items: center; gap: 0; }
.ticker-label {
  background: var(--secondary);
  color: white;
  padding: 4px 16px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  white-space: nowrap;
  margin-right: 24px;
  border-radius: 4px;
  flex-shrink: 0;
}
.ticker-track {
  overflow: hidden;
  flex: 1;
}
.ticker-content {
  display: flex;
  gap: 48px;
  animation: ticker 30s linear infinite;
  white-space: nowrap;
}
.ticker-content:hover { animation-play-state: paused; }
@keyframes ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.ticker-item {
  font-size: 0.85rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.9);
  flex-shrink: 0;
}
.ticker-item::after {
  content: '◆';
  color: var(--secondary);
  font-size: 0.5rem;
  margin-left: 40px;
}

/* ── LEVELS — Groupes par racine ── */
#levels .levels-grid {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

/* Groupe racine */
.level-group { display: flex; flex-direction: column; gap: 16px; }

.level-group-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 4px;
  border-left: 4px solid var(--racine-color, #1B3A6B);
  padding-left: 16px;
}
.level-group-icon { font-size: 1.5rem; line-height: 1; }
.level-group-name {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--racine-color, #1B3A6B);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Cartes à l'intérieur du groupe */
.level-group-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  padding-left: 4px;
}

.level-card {
  background: var(--card-bg, white);
  border-radius: var(--radius-lg);
  padding: 22px 20px;
  text-align: center;
  border: 2px solid transparent;
  border-top: 4px solid var(--card-color, var(--primary));
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.level-card:hover {
  border-color: var(--card-color, var(--primary));
  border-top-color: var(--card-color, var(--primary));
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
.level-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 14px;
  background: rgba(255,255,255,0.7);
  border: 1px solid rgba(0,0,0,0.06);
}
.level-card h3 {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 8px;
  line-height: 1.3;
}
.level-card p { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 16px; line-height: 1.5; }
.level-count {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--card-color, var(--primary));
  border: 1px solid var(--card-color, var(--primary));
  padding: 3px 12px;
  border-radius: 20px;
  transition: all 0.2s;
}
.level-card:hover .level-count {
  background: var(--card-color, var(--primary));
  color: white;
}

/* ── CATALOG SEARCH ── */
.catalog-search-wrap {
  margin-bottom: 20px;
}
.catalog-search-box {
  position: relative;
  max-width: 520px;
  margin: 0 auto;
}
.catalog-search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: #94a3b8;
  font-size: 1rem;
  pointer-events: none;
}
.catalog-search-input {
  width: 100%;
  padding: 13px 48px 13px 44px;
  border: 2px solid #e2e8f0;
  border-radius: 999px;
  font-size: 0.95rem;
  color: #1e293b;
  background: white;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  font-family: inherit;
  box-sizing: border-box;
}
.catalog-search-input:focus {
  border-color: #1B3A6B;
  box-shadow: 0 0 0 4px rgba(27,58,107,0.1);
}
.catalog-search-input::placeholder { color: #94a3b8; }
.catalog-search-clear {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: #e2e8f0;
  border: none;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  cursor: pointer;
  color: #64748b;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}
.catalog-search-clear:hover { background: #cbd5e1; }

/* ── SUJETS LEVEL SELECTOR — RACINES ── */
.sujet-levels-wrap {
  background: linear-gradient(135deg, #f0f4fa 0%, #e8eef8 100%);
  border-radius: 16px;
  border: 1px solid #d4e0f0;
  padding: 20px 24px;
  margin-bottom: 24px;
  animation: fadeIn 0.22s ease;
}
@keyframes fadeIn { from { opacity:0; transform:translateY(-8px); } to { opacity:1; transform:none; } }

.sujet-levels-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: #1B3A6B;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Grille des racines */
.sujet-roots-grid {
  display: grid;
  grid-template-columns: auto repeat(5, 1fr);
  gap: 12px;
  align-items: stretch;
}

/* Carte racine */
.root-card {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: white;
  border: 2px solid #e2e8f0;
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.22s ease;
  text-align: left;
  position: relative;
  overflow: hidden;
}
.root-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  border-radius: 14px 14px 0 0;
  opacity: 0;
  transition: opacity 0.2s;
}
.root-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(27,58,107,0.14);
  border-color: #b8cde8;
}
.root-card:hover::before { opacity: 1; }
.root-card.active {
  border-color: #1B3A6B;
  box-shadow: 0 6px 24px rgba(27,58,107,0.22);
}
.root-card.active::before { opacity: 1; }

/* Couleurs accent par racine */
.root-all::before, .root-all.active { border-color: #64748b; }
.root-all::before { background: #64748b; }
.root-all.active { background: #f8fafc; }

.root-bac::before { background: #2563eb; }
.root-bac.active { border-color: #2563eb; background: #eff6ff; }
.root-bts::before { background: #16a34a; }
.root-bts.active { border-color: #16a34a; background: #f0fdf4; }
.root-lic::before { background: #9333ea; }
.root-lic.active { border-color: #9333ea; background: #faf5ff; }
.root-mas::before { background: #ea580c; }
.root-mas.active { border-color: #ea580c; background: #fff7ed; }
.root-ing::before { background: #1B3A6B; }
.root-ing.active { border-color: #1B3A6B; background: #f0f4fa; }

/* Cartes accent dynamique (Revit, Archicad...) */
.root-card[style*="--accent"]::before { background: var(--accent); }
.root-card[style*="--accent"].active  { border-color: var(--accent); }

.root-card-icon {
  font-size: 2rem;
  line-height: 1;
  flex-shrink: 0;
}
.root-card-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.root-card-racine {
  font-size: 0.6rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #94a3b8;
}
.root-card-name {
  font-size: 0.95rem;
  font-weight: 800;
  color: #1e293b;
  white-space: nowrap;
}
.root-card-sub {
  font-size: 0.7rem;
  color: #64748b;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 140px;
}
.root-card-count {
  display: inline-block;
  margin-top: 4px;
  font-size: 0.68rem;
  font-weight: 700;
  color: white;
  background: #1B3A6B;
  padding: 2px 8px;
  border-radius: 20px;
  width: fit-content;
}
.root-bac .root-card-count  { background: #2563eb; }
.root-bts .root-card-count  { background: #16a34a; }
.root-lic .root-card-count  { background: #9333ea; }
.root-mas .root-card-count  { background: #ea580c; }
.root-ing .root-card-count  { background: #1B3A6B; }
.root-all .root-card-count  { background: #64748b; }

/* "Tous" : colonne plus étroite */
.root-all {
  grid-column: 1;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-width: 80px;
}
.root-all .root-card-icon { font-size: 1.6rem; }
.root-all .root-card-name { font-size: 0.78rem; }

/* ── THEME CHIPS (Cours PDF / TD PDF) ── */
.theme-chips-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.theme-chip {
  padding: 7px 16px;
  border: 1.5px solid #e2e8f0;
  border-radius: 999px;
  background: white;
  font-size: 0.82rem;
  font-weight: 600;
  color: #475569;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.theme-chip:hover {
  border-color: #1B3A6B;
  color: #1B3A6B;
  background: #f0f4fa;
}
.theme-chip.active {
  background: #1B3A6B;
  border-color: #1B3A6B;
  color: white;
  box-shadow: 0 2px 8px rgba(27,58,107,0.25);
}
@media (max-width: 768px) {
  .theme-chips-wrap {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 6px;
    scrollbar-width: none;
  }
  .theme-chips-wrap::-webkit-scrollbar { display: none; }
  .theme-chip { flex-shrink: 0; }
}

/* ── CATALOG ── */
.catalog-filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.filter-btn {
  padding: 8px 20px;
  border: 1.5px solid var(--border);
  border-radius: 999px;
  background: white;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}
.filter-btn:hover { border-color: var(--primary); color: var(--primary); }
.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  box-shadow: 0 4px 12px rgba(27,58,107,0.3);
}

/* ── Filtres source vidéos ── */
.vsrc-btn {
  padding: 7px 16px;
  border: 1.5px solid rgba(255,255,255,0.25);
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  font-size: 0.82rem;
  font-weight: 600;
  color: rgba(255,255,255,0.75);
  cursor: pointer;
  transition: all .2s;
  white-space: nowrap;
}
.vsrc-btn:hover { border-color: var(--secondary); color: var(--secondary); background: rgba(200,161,66,0.12); }
.vsrc-btn.vsrc-active {
  background: var(--secondary);
  border-color: var(--secondary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(200,161,66,0.35);
}

/* ── Filtres logiciels sur fond clair ── */
#logiciels-cat-filters .vsrc-btn {
  border-color: var(--border);
  background: #fff;
  color: var(--text-muted);
  box-shadow: 0 1px 4px rgba(27,58,107,0.07);
}
#logiciels-cat-filters .vsrc-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(27,58,107,0.05);
}
#logiciels-cat-filters .vsrc-btn.vsrc-active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(27,58,107,0.25);
}
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.product-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}
.product-thumb {
  position: relative;
  height: 180px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  overflow: hidden;
}
.product-thumb.gold { background: linear-gradient(135deg, #8B6914, var(--secondary)); }
.product-thumb.teal { background: linear-gradient(135deg, #0d6e6e, #1aabab); }
.product-thumb.purple { background: linear-gradient(135deg, #4a1d8c, #7c3aed); }
.product-thumb.red { background: linear-gradient(135deg, #8B1A1A, var(--accent)); }
.product-thumb.green { background: linear-gradient(135deg, #14532d, #16a34a); }
.product-thumb-icon {
  font-size: 3.5rem;
  z-index: 1;
  position: relative;
}
.product-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='white' fill-opacity='0.05'%3E%3Cpath d='M0 0h20v20H0V0zm20 20h20v20H20V20z'/%3E%3C/g%3E%3C/svg%3E");
}
.product-badges {
  position: absolute;
  top: 12px;
  left: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 2;
}
.product-wishlist {
  position: absolute;
  top: 12px; right: 12px;
  width: 34px; height: 34px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(4px);
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  transition: var(--transition);
  z-index: 2;
}
.product-wishlist:hover { background: rgba(230,57,70,0.6); }
.product-type-icon {
  position: absolute;
  bottom: 12px; right: 12px;
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(6px);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  z-index: 2;
}
.product-body { padding: 18px 20px; }
.product-category { font-size: 0.72rem; font-weight: 700; color: var(--primary); letter-spacing: 0.8px; text-transform: uppercase; margin-bottom: 8px; }
.product-title { font-size: 0.95rem; font-weight: 700; color: var(--dark); margin-bottom: 8px; line-height: 1.4; }
.product-author { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 12px; display: flex; align-items: center; gap: 6px; }
.product-author .avatar { width: 22px; height: 22px; background: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: white; font-size: 0.65rem; font-weight: 700; }
.product-rating { display: flex; align-items: center; gap: 6px; margin-bottom: 14px; }
.stars { color: #f59e0b; font-size: 0.8rem; letter-spacing: 1px; }
.rating-count { font-size: 0.75rem; color: var(--text-muted); }
.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.price-block {}
.price-current { font-size: 1.2rem; font-weight: 800; color: var(--primary); }
.price-current .currency { font-size: 0.75rem; margin-right: 2px; }
.price-old { font-size: 0.8rem; color: var(--text-muted); text-decoration: line-through; }
.price-free { font-size: 1rem; font-weight: 800; color: var(--green); }
.add-cart-btn {
  padding: 9px 20px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}
.add-cart-btn:hover { background: var(--primary-light); transform: scale(1.04); }

/* ── VIDEOS ── */
#videos { background: var(--dark); }
#videos .section-header h2 { color: white; }
#videos .section-header p { color: rgba(255,255,255,0.6); }
#videos .section-header .label { background: rgba(200,161,66,0.15); border-color: rgba(200,161,66,0.3); }
.videos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.video-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover { transform: translateY(-6px); box-shadow: 0 16px 40px rgba(0,0,0,0.4); }
.video-thumb {
  position: relative;
  height: 190px;
  background: linear-gradient(135deg, #0f2847, #1B3A6B);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  overflow: hidden;
}
.video-thumb.v2 { background: linear-gradient(135deg, #1a0a2e, #3d1e6e); }
.video-thumb.v3 { background: linear-gradient(135deg, #0a1f0a, #145214); }
.video-thumb.v4 { background: linear-gradient(135deg, #2a0a0a, #7c1a1a); }
.video-thumb.v5 { background: linear-gradient(135deg, #0a1a2a, #0d4f6b); }
.video-thumb.v6 { background: linear-gradient(135deg, #1a1400, #7c5a00); }
.play-btn {
  position: absolute;
  width: 56px; height: 56px;
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(8px);
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.4rem;
  transition: var(--transition);
  z-index: 2;
}
.video-card:hover .play-btn {
  background: var(--secondary);
  border-color: var(--secondary);
  transform: scale(1.1);
}
.video-duration {
  position: absolute;
  bottom: 10px; right: 10px;
  background: rgba(0,0,0,0.7);
  color: white;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 6px;
  z-index: 2;
}
.video-level {
  position: absolute;
  top: 10px; left: 10px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  z-index: 2;
}
.level-bg { background: rgba(27,58,107,0.8); color: #7dd3fc; }
.level-int { background: rgba(200,161,66,0.8); color: #fffbeb; }
.level-adv { background: rgba(230,57,70,0.7); color: white; }
.video-body { padding: 16px 18px; }
.video-tag { font-size: 0.7rem; font-weight: 700; color: var(--secondary); letter-spacing: 0.8px; text-transform: uppercase; margin-bottom: 7px; }
.video-title { font-size: 0.92rem; font-weight: 700; color: white; margin-bottom: 8px; line-height: 1.4; }
.video-meta { display: flex; align-items: center; justify-content: space-between; }
.video-author { font-size: 0.75rem; color: rgba(255,255,255,0.5); }
.video-views { font-size: 0.72rem; color: rgba(255,255,255,0.4); display: flex; align-items: center; gap: 4px; }
.video-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

/* ── Badge sommaire sur la carte ────────────────────────────────── */
.video-chapters-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--secondary);
  background: rgba(200,161,66,0.1);
  border: 1px solid rgba(200,161,66,0.2);
  padding: 3px 8px;
  border-radius: 20px;
  margin-top: 8px;
  cursor: pointer;
  transition: background .15s;
}
.video-chapters-badge:hover { background: rgba(200,161,66,0.2); }

/* ── Bouton Source dans le panel droit ──────────────────────────── */
.yt-source-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 20px;
  background: rgba(255,0,0,0.15);
  color: #ff6b6b;
  border: 1px solid rgba(255,0,0,0.25);
  text-decoration: none;
  transition: background .15s;
}
.yt-source-link:hover { background: rgba(255,0,0,0.28); }

/* ── Chapitres dans le panel droit du modal ─────────────────────── */
.yt-chapter-item {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  cursor: pointer;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: background .15s;
}
.yt-chapter-item:last-child { border-bottom: none; }
.yt-chapter-item:hover { background: rgba(200,161,66,0.1); }
.yt-chapter-item.active { background: rgba(200,161,66,0.15); }
.yt-ch-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(200,161,66,0.15);
  color: var(--secondary);
  font-size: 0.68rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background .15s, color .15s;
}
.yt-chapter-item:hover .yt-ch-num,
.yt-chapter-item.active .yt-ch-num { background: var(--secondary); color: var(--dark); }
.yt-ch-title {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.35;
}
.yt-ch-time {
  font-size: 0.68rem;
  color: rgba(255,255,255,0.35);
  background: rgba(255,255,255,0.06);
  padding: 2px 7px;
  border-radius: 4px;
  white-space: nowrap;
  font-weight: 700;
}

/* ── Sommaire vidéo — style Leroy Merlin ────────────────────────── */
.video-sommaire-wrap {
  margin-top: 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  overflow: hidden;
}
.video-sommaire-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.07);
}
.video-sommaire-label {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--secondary);
  display: flex;
  align-items: center;
  gap: 5px;
}
.video-sommaire-actions { display: flex; gap: 6px; align-items: center; }
.sommaire-count-badge {
  font-size: 0.68rem;
  background: rgba(200,161,66,0.15);
  color: var(--secondary);
  padding: 2px 7px;
  border-radius: 20px;
  font-weight: 700;
}
.video-source-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 20px;
  background: rgba(255,0,0,0.12);
  color: #ff6b6b;
  border: 1px solid rgba(255,0,0,0.2);
  cursor: pointer;
  text-decoration: none;
  transition: background .15s;
}
.video-source-btn:hover { background: rgba(255,0,0,0.22); }
.video-sommaire-toggle-btn {
  background: none;
  border: none;
  color: rgba(255,255,255,0.4);
  cursor: pointer;
  font-size: 0.75rem;
  padding: 2px 4px;
  transition: color .15s;
}
.video-sommaire-toggle-btn:hover { color: rgba(255,255,255,0.8); }
.video-sommaire-list { padding: 4px 0; }
.video-chapter {
  display: grid;
  grid-template-columns: 24px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  cursor: pointer;
  transition: background .15s;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.video-chapter:last-child { border-bottom: none; }
.video-chapter:hover { background: rgba(200,161,66,0.1); }
.video-chapter:hover .chapter-num { background: var(--secondary); color: var(--dark); }
.chapter-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(200,161,66,0.15);
  color: var(--secondary);
  font-size: 0.65rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background .15s, color .15s;
}
.chapter-title {
  color: rgba(255,255,255,0.82);
  font-size: 0.76rem;
  line-height: 1.3;
}
.chapter-time {
  font-size: 0.68rem;
  font-weight: 700;
  color: rgba(255,255,255,0.35);
  background: rgba(255,255,255,0.06);
  padding: 2px 6px;
  border-radius: 4px;
  white-space: nowrap;
  flex-shrink: 0;
}
.video-price-free { font-size: 0.85rem; font-weight: 700; color: var(--green); }
.video-price-paid { font-size: 0.85rem; font-weight: 700; color: var(--secondary); }
.video-watch-btn {
  padding: 7px 16px;
  background: rgba(200,161,66,0.15);
  border: 1px solid rgba(200,161,66,0.3);
  color: var(--secondary);
  border-radius: 7px;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}
.video-watch-btn:hover { background: var(--secondary); color: white; }

/* ── ARTICLES ── */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.article-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.article-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.article-thumb {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  background: linear-gradient(135deg, var(--bg), var(--border));
  position: relative;
  overflow: hidden;
}
.article-thumb.a1 { background: linear-gradient(135deg, #e8f4fd, #bfdbfe); }
.article-thumb.a2 { background: linear-gradient(135deg, #fef9e7, #fde68a); }
.article-thumb.a3 { background: linear-gradient(135deg, #e8fdf4, #bbf7d0); }
.article-thumb.a4 { background: linear-gradient(135deg, #fdf0e8, #fed7aa); }
.article-thumb.a5 { background: linear-gradient(135deg, #f3e8fd, #e9d5ff); }
.article-thumb.a6 { background: linear-gradient(135deg, #fde8e8, #fecaca); }
.article-category-tag {
  position: absolute;
  top: 10px; left: 10px;
  padding: 4px 10px;
  background: var(--primary);
  color: white;
  font-size: 0.68rem;
  font-weight: 700;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.article-body { padding: 18px 20px; }
.article-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.article-date { font-size: 0.75rem; color: var(--text-muted); }
.article-read { font-size: 0.75rem; color: var(--text-muted); display: flex; align-items: center; gap: 4px; }
.article-title { font-size: 0.95rem; font-weight: 700; color: var(--dark); margin-bottom: 10px; line-height: 1.4; }
.article-excerpt { font-size: 0.82rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 16px; }
.article-footer { display: flex; align-items: center; justify-content: space-between; }
.article-author { display: flex; align-items: center; gap: 8px; font-size: 0.78rem; color: var(--text-muted); }
.author-avatar { width: 28px; height: 28px; background: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: white; font-size: 0.65rem; font-weight: 700; }
.read-more { font-size: 0.8rem; font-weight: 600; color: var(--primary); text-decoration: none; display: flex; align-items: center; gap: 4px; }
.read-more:hover { gap: 8px; }

/* ── PRICING ── */
#pricing {
  background: linear-gradient(180deg, var(--bg) 0%, white 100%);
}
.pricing-toggle {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
  justify-content: center;
}
.toggle-label { font-size: 0.9rem; font-weight: 600; color: var(--text-muted); }
.toggle-label.active { color: var(--dark); }
.toggle-switch {
  position: relative;
  width: 52px;
  height: 28px;
  background: var(--primary);
  border-radius: 999px;
  cursor: pointer;
  border: none;
}
.toggle-switch::after {
  content: '';
  position: absolute;
  top: 3px; left: 3px;
  width: 22px; height: 22px;
  background: white;
  border-radius: 50%;
  transition: var(--transition);
}
.toggle-switch.annual::after { transform: translateX(24px); }
.save-badge {
  background: var(--green);
  color: white;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
}
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: start; }
.pricing-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  border: 2px solid var(--border);
  transition: var(--transition);
  position: relative;
}
.pricing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.pricing-card.featured {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: scale(1.04);
  z-index: 1;
}
.pricing-card.featured:hover { transform: scale(1.04) translateY(-4px); }
.popular-tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--secondary);
  color: white;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 5px 18px;
  border-radius: 999px;
  white-space: nowrap;
  letter-spacing: 0.5px;
}
.plan-icon { font-size: 2.2rem; margin-bottom: 14px; }
.plan-name { font-size: 1rem; font-weight: 700; color: var(--dark); margin-bottom: 4px; }
.pricing-card.featured .plan-name { color: white; }
.plan-desc { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 24px; }
.pricing-card.featured .plan-desc { color: rgba(255,255,255,0.7); }
.plan-price { margin-bottom: 28px; }
.price-amount { font-size: 2.4rem; font-weight: 900; color: var(--dark); line-height: 1; }
.pricing-card.featured .price-amount { color: white; }
.price-amount .dz { font-size: 1rem; font-weight: 600; margin-right: 4px; }
.price-period { font-size: 0.82rem; color: var(--text-muted); margin-top: 4px; }
.pricing-card.featured .price-period { color: rgba(255,255,255,0.6); }
.plan-features { list-style: none; margin-bottom: 28px; display: flex; flex-direction: column; gap: 10px; }
.plan-features li { display: flex; align-items: center; gap: 10px; font-size: 0.85rem; color: var(--text); }
.pricing-card.featured .plan-features li { color: rgba(255,255,255,0.85); }
.plan-features .check { color: var(--green); font-size: 1rem; }
.plan-features .cross { color: var(--gray-light); font-size: 0.85rem; }
.pricing-card.featured .plan-features .check { color: #86efac; }
.btn-plan {
  width: 100%;
  padding: 14px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}
.btn-plan-outline {
  background: transparent;
  border: 2px solid var(--border);
  color: var(--text);
}
.btn-plan-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-plan-featured {
  background: white;
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}
.btn-plan-featured:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.18); }

/* ── PAYMENT ── */
#payment { background: var(--dark); }
#payment .section-header h2 { color: white; }
#payment .section-header p { color: rgba(255,255,255,0.6); }
.payment-methods { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 48px; }
.payment-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}
.payment-card:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--secondary);
  transform: translateY(-4px);
}
.payment-icon { font-size: 2.8rem; margin-bottom: 14px; display: block; }
.payment-name { font-size: 1rem; font-weight: 700; color: white; margin-bottom: 6px; }
.payment-desc { font-size: 0.8rem; color: rgba(255,255,255,0.5); line-height: 1.5; }
.payment-tags { display: flex; gap: 6px; justify-content: center; margin-top: 12px; flex-wrap: wrap; }
.payment-tag {
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 600;
  background: rgba(200,161,66,0.15);
  color: var(--secondary);
  border: 1px solid rgba(200,161,66,0.2);
}
.payment-security {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding: 28px 32px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  flex-wrap: wrap;
}
.security-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.7);
  font-size: 0.85rem;
  font-weight: 500;
}
.security-icon { font-size: 1.4rem; }

/* ── TESTIMONIALS ── */
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.testimonial-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.testi-header { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.testi-avatar {
  width: 50px; height: 50px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 800;
  color: white;
  flex-shrink: 0;
}
.testi-info h4 { font-size: 0.92rem; font-weight: 700; color: var(--dark); margin-bottom: 3px; }
.testi-info p { font-size: 0.75rem; color: var(--text-muted); }
.testi-stars { color: #f59e0b; font-size: 0.85rem; margin-bottom: 12px; }
.testi-text { font-size: 0.87rem; color: var(--text); line-height: 1.7; font-style: italic; }
.testi-text::before { content: '"'; color: var(--secondary); font-size: 2rem; line-height: 0; vertical-align: -0.6em; margin-right: 4px; }

/* ── CTA BANNER ── */
#cta-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, #1a4a8a 100%);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
#cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(200,161,66,0.15) 0%, transparent 60%);
}
.cta-content {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.cta-text h2 { font-size: clamp(1.6rem, 2.5vw, 2.4rem); font-weight: 800; color: white; margin-bottom: 10px; }
.cta-text p { font-size: 1rem; color: rgba(255,255,255,0.75); max-width: 480px; }
.cta-actions { display: flex; gap: 14px; flex-shrink: 0; flex-wrap: wrap; }

/* ── NEWSLETTER ── */
#newsletter { background: var(--bg-card); }
.newsletter-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 60px 0;
}
.nl-title { font-size: 1.8rem; font-weight: 800; color: var(--dark); margin-bottom: 10px; }
.nl-sub { font-size: 0.95rem; color: var(--text-muted); line-height: 1.6; }
.nl-form { display: flex; flex-direction: column; gap: 14px; }
.nl-input-row { display: flex; gap: 12px; }
.nl-input {
  flex: 1;
  padding: 14px 18px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.92rem;
  background: var(--bg);
  color: var(--text);
  transition: var(--transition);
  outline: none;
}
.nl-input:focus { border-color: var(--primary); background: white; box-shadow: 0 0 0 3px rgba(27,58,107,0.08); }
.nl-note { font-size: 0.75rem; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }

/* ── FOOTER ── */
#footer {
  background: var(--dark);
  color: rgba(255,255,255,0.75);
  padding: 64px 0 0;
}
.footer-grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand {}
.footer-logo-text .name { font-size: 1.5rem; font-weight: 900; color: white; }
.footer-logo-text .name span { color: var(--secondary); }
.footer-tagline { font-size: 0.82rem; color: rgba(255,255,255,0.4); letter-spacing: 1px; text-transform: uppercase; margin-top: 2px; margin-bottom: 18px; }
.footer-desc { font-size: 0.85rem; line-height: 1.7; margin-bottom: 24px; color: rgba(255,255,255,0.55); }
.social-links { display: flex; gap: 10px; }
.social-link {
  width: 38px; height: 38px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: 0.95rem;
  transition: var(--transition);
}
.social-link:hover { background: var(--primary); border-color: var(--primary); color: white; }
.footer-col h4 { font-size: 0.88rem; font-weight: 700; color: white; margin-bottom: 18px; letter-spacing: 0.5px; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { text-decoration: none; color: rgba(255,255,255,0.5); font-size: 0.83rem; transition: var(--transition); display: flex; align-items: center; gap: 6px; }
.footer-links a:hover { color: var(--secondary); padding-left: 4px; }
.footer-contact { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; font-size: 0.83rem; color: rgba(255,255,255,0.5); }
.footer-contact .icon { color: var(--secondary); font-size: 1rem; margin-top: 1px; flex-shrink: 0; }
.footer-bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-copy { font-size: 0.8rem; color: rgba(255,255,255,0.35); }
.footer-copy span { color: var(--secondary); }
.footer-links-bottom { display: flex; gap: 20px; }
.footer-links-bottom a { font-size: 0.78rem; color: rgba(255,255,255,0.35); text-decoration: none; transition: var(--transition); }
.footer-links-bottom a:hover { color: var(--secondary); }

/* ── CART SIDEBAR ── */
#cart-sidebar {
  position: fixed;
  top: 0; right: 0;
  width: 420px;
  height: 100vh;
  background: white;
  z-index: 2000;
  box-shadow: -8px 0 48px rgba(0,0,0,0.2);
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
  display: flex;
  flex-direction: column;
}
#cart-sidebar.open { transform: translateX(0); }
.cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.cart-header h3 { font-size: 1.1rem; font-weight: 700; color: var(--dark); }
.cart-close {
  width: 36px; height: 36px;
  background: var(--bg);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--text);
  transition: var(--transition);
}
.cart-close:hover { background: var(--border); }
.cart-items { flex: 1; overflow-y: auto; padding: 16px 24px; }
.cart-item {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.cart-item-thumb {
  width: 60px; height: 60px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  flex-shrink: 0;
}
.cart-item-info { flex: 1; }
.cart-item-title { font-size: 0.85rem; font-weight: 600; color: var(--dark); margin-bottom: 4px; line-height: 1.3; }
.cart-item-type { font-size: 0.72rem; color: var(--text-muted); margin-bottom: 8px; }
.cart-item-price { font-size: 0.9rem; font-weight: 700; color: var(--primary); }
.cart-item-remove {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  font-size: 0.95rem;
  transition: var(--transition);
}
.cart-item-remove:hover { color: var(--accent); }
.cart-empty { text-align: center; padding: 48px 0; color: var(--text-muted); }
.cart-empty .empty-icon { font-size: 3rem; margin-bottom: 12px; }
.cart-empty p { font-size: 0.9rem; }
.cart-footer {
  padding: 20px 24px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.cart-total-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.cart-total-label { font-size: 0.9rem; font-weight: 600; color: var(--text-muted); }
.cart-total-amount { font-size: 1.3rem; font-weight: 800; color: var(--primary); }
.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1999;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.cart-overlay.show { opacity: 1; pointer-events: all; }

/* ── MODAL ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.modal-overlay.show { opacity: 1; pointer-events: all; }
.modal {
  background: white;
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 460px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95) translateY(10px);
  transition: var(--transition);
}
.modal-overlay.show .modal { transform: scale(1) translateY(0); }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 28px 0;
}
.modal-header h3 { font-size: 1.2rem; font-weight: 800; color: var(--dark); }
.modal-close {
  width: 34px; height: 34px;
  background: var(--bg);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  color: var(--text);
  transition: var(--transition);
}
.modal-close:hover { background: var(--border); }
.modal-body { padding: 24px 28px; }
.modal-tabs { display: flex; gap: 0; margin-bottom: 24px; border-bottom: 2px solid var(--border); }
.modal-tab {
  flex: 1;
  padding: 10px;
  background: none;
  border: none;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: var(--transition);
}
.modal-tab.active { color: var(--primary); border-bottom-color: var(--primary); }
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--text); margin-bottom: 7px; }
.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--text);
  background: var(--bg);
  outline: none;
  transition: var(--transition);
}
.form-input:focus { border-color: var(--primary); background: white; box-shadow: 0 0 0 3px rgba(27,58,107,0.08); }
.form-select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--text);
  background: var(--bg);
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 16px;
  padding-right: 40px;
  transition: var(--transition);
}
.form-select:focus { border-color: var(--primary); background-color: white; }
.form-divider { display: flex; align-items: center; gap: 12px; margin: 20px 0; color: var(--text-muted); font-size: 0.82rem; }
.form-divider::before, .form-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.social-login { display: flex; flex-direction: column; gap: 10px; }
.btn-social {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: white;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: var(--transition);
}
.btn-social:hover { border-color: var(--primary); background: var(--bg); }

/* ── NOTIFICATION TOAST ── */
#toast {
  position: fixed;
  bottom: 24px; right: 24px;
  background: var(--dark);
  color: white;
  padding: 14px 20px;
  border-radius: var(--radius);
  font-size: 0.88rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  transform: translateY(80px);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.4,0,0.2,1);
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 280px;
}
#toast.show { transform: translateY(0); opacity: 1; }
#toast .toast-icon { font-size: 1.2rem; }

/* ── BACK TO TOP ── */
#back-top {
  position: fixed;
  bottom: 24px; right: 80px;
  width: 44px; height: 44px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  font-size: 1.1rem;
  box-shadow: 0 4px 16px rgba(27,58,107,0.4);
  transition: var(--transition);
  opacity: 0;
  pointer-events: none;
  z-index: 500;
}
#back-top.show { opacity: 1; pointer-events: all; }
#back-top:hover { transform: translateY(-3px); }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .level-group-cards { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .level-group-name { font-size: 0.95rem; }
  .level-card { padding: 16px 14px; }
  .level-icon { width: 44px; height: 44px; font-size: 1.4rem; margin-bottom: 10px; }
  .level-card h3 { font-size: 0.82rem; }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .videos-grid { grid-template-columns: repeat(2, 1fr); }
  .articles-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .pricing-card.featured { transform: scale(1); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .payment-methods { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  /* ── Mise en page générale ── */
  .section { padding: 28px 0 !important; }
  .section-header { margin-bottom: 16px !important; }
  .section-header h2 { font-size: 1.3rem !important; }
  .section-header p { font-size: 0.88rem !important; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  #cart-sidebar { width: 100%; }

  /* ── Navbar ── */
  .nav-links { display: none; }
  .hamburger { display: flex; }
  /* Nav-actions compact sur tablette */
  .nav-actions { gap: 6px; flex-shrink: 1; }
  /* Logo légèrement réduit */
  .nav-logo-img { height: 48px; }
  .nav-inner { height: 64px; gap: 8px; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 60px; left: 0; right: 0;
    background: white; padding: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 32px rgba(0,0,0,0.1); z-index: 100;
  }
  /* Ajouter boutons auth dans le menu hamburger ouvert */
  .nav-links.open .nav-mobile-auth {
    display: flex; gap: 8px; padding-top: 12px;
    border-top: 1px solid var(--border); margin-top: 8px;
  }

  /* ── Hero ultra-compact ── */
  #hero { padding: 28px 0 20px !important; }
  .hero-content { grid-template-columns: 1fr; gap: 0; }
  .hero-right { display: none; }
  .hero-title { font-size: 1.6rem !important; margin-bottom: 10px !important; }
  .hero-subtitle { font-size: 0.88rem !important; margin-bottom: 14px !important; }
  .hero-actions { flex-direction: row; gap: 8px; }
  .hero-actions .btn-lg { padding: 10px 16px; font-size: 0.85rem; }
  .hero-badge { font-size: 0.78rem; padding: 5px 12px; margin-bottom: 10px; }
  .hero-stats { display: grid; grid-template-columns: repeat(4,1fr); gap: 8px; margin-top: 16px; }
  .stat-item { text-align: center; }
  .stat-number { font-size: 1.1rem !important; }
  .stat-label { font-size: 0.65rem !important; }

  /* ── Sections CACHÉES sur mobile (trop longues, accessibles via menu) ── */
  #levels       { display: none; }
  #logiciels    { display: none; }
  #articles     { display: none; }
  #payment      { display: none; }
  #testimonials { display: none; }
  #cta-banner   { display: none; }
  #newsletter   { display: none; }

  /* ── Catalogue ── */
  .sujet-levels-wrap { padding: 14px; }
  .sujet-roots-grid {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .root-all { grid-column: 1 / -1; flex-direction: row; }
  .root-card { padding: 10px 12px; gap: 8px; }
  .root-card-icon { font-size: 1.4rem; }
  .root-card-name { font-size: 0.82rem; }
  .root-card-sub { display: none; }
  .root-card-racine { display: none; }
  .catalog-filters {
    flex-wrap: nowrap !important; overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 6px; scrollbar-width: none;
  }
  .catalog-filters::-webkit-scrollbar { display: none; }
  .filter-btn { flex-shrink: 0; padding: 6px 14px; font-size: 0.8rem; }
  .catalog-search-wrap { margin-bottom: 12px; }
  .products-grid { grid-template-columns: 1fr 1fr; gap: 12px; }

  /* ── Vidéos ── */
  #videos-source-filters {
    flex-wrap: nowrap !important; overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 6px; scrollbar-width: none;
    justify-content: flex-start !important;
  }
  #videos-source-filters::-webkit-scrollbar { display: none; }
  .vsrc-btn { flex-shrink: 0; }
  .videos-grid { grid-template-columns: 1fr 1fr; gap: 12px; }

  /* ── Tarifs ── */
  .pricing-grid { grid-template-columns: 1fr; max-width: 320px; margin: 0 auto; }
  .pricing-card.featured { transform: scale(1); }

  /* ── Footer minimal ── */
  .footer-grid { grid-template-columns: 1fr; }
  .footer-col:not(:first-child) { display: none; }
  .footer-bottom { flex-direction: column; text-align: center; font-size: 0.78rem; }
}

/* ── Mobile strict (téléphone) : cacher auth + lang de la nav ── */
@media (max-width: 600px) {
  #nav-auth-actions { display: none !important; }
  .lang-switcher { display: none; }
  .nav-actions { gap: 4px; }
  .nav-logo-img { height: 40px; max-width: 130px; }
  .nav-inner { height: 56px; }
  .nav-links.open { top: 56px; }
}

@media (max-width: 480px) {
  .container { padding: 0 12px; }
  .hero-actions { flex-direction: column; }
  .products-grid { grid-template-columns: 1fr; }
  .videos-grid   { grid-template-columns: 1fr; }
  .nl-input-row  { flex-direction: column; }
}

/* =============================================
   MOBILE BOTTOM NAV BAR
   ============================================= */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: white;
  border-top: 1px solid #e2e8f0;
  z-index: 999;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.08);
  padding: 0;
  padding-bottom: env(safe-area-inset-bottom);
}
.mobile-bottom-nav ul {
  display: flex;
  list-style: none;
  margin: 0; padding: 0;
  height: 58px;
}
.mobile-bottom-nav li {
  flex: 1;
}
.mobile-bottom-nav a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-decoration: none;
  color: #94a3b8;
  font-size: 0.62rem;
  font-weight: 600;
  gap: 4px;
  transition: color 0.2s;
}
.mobile-bottom-nav a .mbn-icon {
  font-size: 1.25rem;
  line-height: 1;
}
.mobile-bottom-nav a.active,
.mobile-bottom-nav a:hover {
  color: #1B3A6B;
}
.mobile-bottom-nav a.active .mbn-icon {
  transform: scale(1.1);
}

/* Compenser la hauteur de la barre en bas sur mobile */
@media (max-width: 768px) {
  .mobile-bottom-nav { display: block; }
  body { padding-bottom: 58px; }

  /* Réduire les espacements des sections */
  .section { padding: 36px 0 !important; }
  .section-header { margin-bottom: 24px !important; }
  .section-header h2 { font-size: 1.5rem !important; }

  /* Masquer les sections secondaires sur mobile par défaut */
  #testimonials { display: none; }
  #cta-banner { display: none; }

  /* Filtres vidéos : scroll horizontal sur mobile */
  #videos-source-filters {
    flex-wrap: nowrap !important;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
    justify-content: flex-start !important;
    scrollbar-width: none;
  }
  #videos-source-filters::-webkit-scrollbar { display: none; }
  .vsrc-btn { flex-shrink: 0; }

  /* Filtres catalogue : scroll horizontal */
  .catalog-filters {
    flex-wrap: nowrap !important;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
    scrollbar-width: none;
  }
  .catalog-filters::-webkit-scrollbar { display: none; }
  .filter-btn { flex-shrink: 0; }

  /* Hero plus compact */
  #hero { padding: 40px 0 32px !important; }
  .hero-stats { grid-template-columns: repeat(2, 1fr) !important; }

  /* Cacher le footer volumineux sur mobile, garder juste l'essentiel */
  .footer-col:not(:first-child) { display: none; }
  .footer-bottom { padding-top: 16px !important; }
}

/* =============================================
   DYNAMIC CONTENT — Skeleton / Empty / User Menu
   ============================================= */

/* ── Skeleton loading ── */
.skeleton-card { pointer-events: none; }
.skeleton-thumb {
  height: 160px;
  background: linear-gradient(90deg, #e2e8f0 25%, #f0f4f8 50%, #e2e8f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: var(--radius) var(--radius) 0 0;
}
.skeleton-body { padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.skeleton-line {
  height: 12px; border-radius: 6px;
  background: linear-gradient(90deg, #e2e8f0 25%, #f0f4f8 50%, #e2e8f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
}
.skeleton-line.w80 { width: 80%; }
.skeleton-line.w60 { width: 60%; }
.skeleton-line.w40 { width: 40%; }
@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── Split section headers (Cours / TD séparés par thème) ── */
.split-section-header {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary, #1a1a2e);
  padding: .5rem 0 .8rem;
  border-bottom: 2px solid var(--accent, #2563eb);
  margin-bottom: .5rem;
}
.split-count {
  background: var(--accent, #2563eb);
  color: #fff;
  font-size: .78rem;
  font-weight: 700;
  padding: .15rem .55rem;
  border-radius: 999px;
}
.split-grid { display: contents; }

/* ── Empty / error state ── */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 1.05rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

/* ── User menu (navbar) ── */
.user-menu { position: relative; }
.user-menu-btn {
  display: flex; align-items: center; gap: 8px;
  background: rgba(27,58,107,0.08);
  border: 1px solid rgba(27,58,107,0.15);
  border-radius: 999px;
  padding: 6px 14px 6px 6px;
  cursor: pointer; color: var(--primary);
  font-weight: 600; font-size: 0.87rem;
  transition: var(--transition);
}
.user-menu-btn:hover { background: rgba(27,58,107,0.14); }
.user-avatar-sm {
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--primary); color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 700;
}
.user-name-sm { max-width: 90px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chevron { font-size: 0.7rem; transition: transform 0.2s; }
.user-dropdown.open ~ .user-menu-btn .chevron,
.user-menu-btn:has(+ .user-dropdown.open) .chevron { transform: rotate(180deg); }

.user-dropdown {
  position: absolute; top: calc(100% + 8px); right: 0;
  min-width: 230px; background: white;
  border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  opacity: 0; pointer-events: none; transform: translateY(-6px);
  transition: opacity 0.2s, transform 0.2s;
  z-index: 200;
}
.user-dropdown.open { opacity: 1; pointer-events: all; transform: translateY(0); }
.dropdown-header {
  padding: 14px 16px 12px;
  border-bottom: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 3px;
}
.dropdown-header strong { font-size: 0.95rem; color: var(--text); }
.dropdown-email { font-size: 0.78rem; color: var(--text-muted); }
.dropdown-plan {
  font-size: 0.73rem; font-weight: 700; padding: 2px 8px;
  border-radius: 999px; display: inline-block; margin-top: 4px;
  width: fit-content;
}
.plan-free     { background: #f0f4f8; color: var(--gray); }
.plan-standard { background: #fef3c7; color: #b45309; }
.plan-pro      { background: #ede9fe; color: #6d28d9; }

.dropdown-item {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 16px; color: var(--text);
  text-decoration: none; font-size: 0.88rem;
  transition: background 0.15s;
}
.dropdown-item:hover { background: var(--bg); }
.dropdown-logout { color: var(--accent); }
.dropdown-divider { height: 1px; background: var(--border); margin: 4px 0; }

/* ── Article card (dynamic layout) ── */
.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.article-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.article-thumb {
  height: 100px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex; align-items: center; justify-content: center;
  font-size: 2.8rem;
  position: relative;
}
.article-body { padding: 20px; flex: 1; display: flex; flex-direction: column; gap: 10px; }
.article-meta { display: flex; align-items: center; gap: 12px; }
.article-category {
  background: rgba(27,58,107,0.08); color: var(--primary);
  padding: 3px 10px; border-radius: 999px;
  font-size: 0.73rem; font-weight: 700; letter-spacing: 0.5px;
}
.article-read-time { font-size: 0.78rem; color: var(--text-muted); }
.article-title { font-size: 0.97rem; font-weight: 700; color: var(--text); line-height: 1.45; }
.article-excerpt { font-size: 0.84rem; color: var(--text-muted); line-height: 1.55; flex: 1; }
.article-footer { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 12px; border-top: 1px solid var(--border); gap: 12px; }
.article-author { display: flex; align-items: center; gap: 10px; }
.avatar.sm { width: 30px; height: 30px; font-size: 0.72rem; }
.author-name { font-size: 0.82rem; font-weight: 600; color: var(--text); }
.author-date { font-size: 0.74rem; color: var(--text-muted); }
.article-actions { display: flex; align-items: center; gap: 10px; }
.article-views { font-size: 0.78rem; color: var(--text-muted); white-space: nowrap; }

/* ── Price variants ── */
.price-free { color: #16a34a; font-weight: 700; font-size: 1rem; }

/* ─────────────────────────────────────────────
   LOGICIELS SECTION (index.html) — même style que logiciels.html
───────────────────────────────────────────── */
.log-category-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
}
.log-cat-title { font-size: 1.15rem; font-weight: 800; color: var(--primary); margin: 0; }
.log-cat-subtitle { font-size: .82rem; color: var(--text-muted); margin-left: 10px; }
.log-cat-count {
  font-size: .75rem; font-weight: 700; color: var(--primary-light);
  background: rgba(27,58,107,.08); padding: 4px 12px; border-radius: 20px;
}
.log-sw-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 22px;
}
.log-sw-card {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 2px 10px rgba(27,58,107,.06);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.log-sw-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(27,58,107,.12);
  border-color: #c7d6ef;
}
.log-sw-header { display: flex; align-items: flex-start; gap: 12px; }
.log-sw-icon { font-size: 2rem; line-height: 1; flex-shrink: 0; }
.log-sw-title-block { flex: 1; min-width: 0; }
.log-sw-name { font-size: 1rem; font-weight: 800; color: #1B3A6B; margin: 0 0 3px; line-height: 1.2; }
.log-sw-cat { font-size: .72rem; color: #64748b; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
.log-sw-badge {
  display: inline-block; padding: 4px 9px; border-radius: 16px;
  font-size: .68rem; font-weight: 800; color: #fff;
  white-space: nowrap; flex-shrink: 0; align-self: flex-start;
}
.log-sw-desc {
  font-size: .85rem; color: #475569; line-height: 1.55; margin: 0;
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden;
}
.log-sw-features { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 5px; }
.log-sw-features li { font-size: .8rem; color: #334155; display: flex; align-items: center; gap: 7px; }
.log-sw-features li i { color: #16a34a; font-size: .72rem; flex-shrink: 0; }
.log-sw-footer { margin-top: auto; display: flex; flex-direction: column; gap: 10px; }
.log-sw-meta { display: flex; flex-wrap: wrap; gap: 6px; }
.log-sw-pill {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 9px; border-radius: 16px; font-size: .72rem;
  background: #f1f5f9; color: #475569; font-weight: 500;
}
.log-sw-pill i { font-size: .65rem; }
.log-sw-pill-price { background: #fef3c7; color: #92400e; }
.log-sw-links { display: flex; flex-wrap: wrap; gap: 8px; }
.log-sw-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: 8px; font-size: .78rem;
  font-weight: 700; text-decoration: none;
  transition: background .15s, transform .15s; font-family: inherit;
}
.log-sw-btn:hover { transform: translateY(-1px); text-decoration: none; }
.log-sw-btn-trial { background: #1B3A6B; color: #fff; }
.log-sw-btn-trial:hover { background: #15305a; color: #fff; }
.log-sw-btn-site { background: #f1f5f9; color: #1B3A6B; border: 1px solid #cbd5e1; }
.log-sw-btn-site:hover { background: #e2e8f0; color: #1B3A6B; }
@media (max-width: 640px) {
  .log-sw-grid { grid-template-columns: 1fr; }
  .log-sw-card { padding: 16px; }
  .log-sw-desc { -webkit-line-clamp: 6; }
}

/* ── LECTEUR PDF INTERACTIF ───────────────────────────────────────────────── */
.pdf-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.92);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 12px;
}
.pdf-overlay.active { display: flex; }

.pdf-dialog {
  background: #0d1b2a;
  border-radius: 16px;
  width: 100%;
  max-width: 1200px;
  height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 32px 100px rgba(0,0,0,.8);
  border: 1px solid #1e293b;
}

/* Header */
.pdf-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-bottom: 1px solid #1e293b;
  gap: 12px;
  flex-shrink: 0;
  min-height: 52px;
}
.pdf-header-left { display: flex; align-items: center; gap: 10px; overflow: hidden; flex: 1; }
.pdf-type-badge {
  background: #1e3a5f;
  color: #C8A142;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  white-space: nowrap;
  flex-shrink: 0;
}
.pdf-title {
  color: #e2e8f0;
  font-weight: 600;
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pdf-header-right { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.pdf-counter { color: #64748b; font-size: 13px; white-space: nowrap; }
.pdf-dl-btn {
  background: #1e293b;
  border: 1px solid #334155;
  color: #94a3b8;
  padding: 5px 12px;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  text-decoration: none;
  transition: all .2s;
}
.pdf-dl-btn:hover { background: #C8A142; color: #0d1b2a; border-color: #C8A142; }
.pdf-close-btn {
  background: #1e293b;
  border: none;
  color: #94a3b8;
  font-size: 18px;
  width: 34px; height: 34px;
  border-radius: 8px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all .2s;
}
.pdf-close-btn:hover { background: #e63946; color: #fff; }

/* Body */
.pdf-body {
  display: flex;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

/* Visionneuse */
.pdf-viewer-wrap {
  flex: 1;
  background: #525659;
  position: relative;
  overflow: hidden;
}
.pdf-loading {
  position: absolute;
  inset: 0;
  background: #1e293b;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: #94a3b8;
  font-size: 14px;
  z-index: 10;
}
.pdf-spinner {
  width: 40px; height: 40px;
  border: 3px solid #1e3a5f;
  border-top-color: #C8A142;
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Sidebar */
.pdf-sidebar {
  width: 280px;
  flex-shrink: 0;
  background: #0a1628;
  border-left: 1px solid #1e293b;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.pdf-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid #1e293b;
  color: #cbd5e1;
  font-size: 13px;
  font-weight: 600;
  flex-shrink: 0;
}
.pdf-panel-count { color: #64748b; font-size: 12px; font-weight: 400; }
.pdf-sidebar-items {
  overflow-y: auto;
  flex: 1;
  padding: 6px 0;
}
.pdf-sidebar-items::-webkit-scrollbar { width: 4px; }
.pdf-sidebar-items::-webkit-scrollbar-thumb { background: #1e293b; border-radius: 2px; }

/* Items */
.pdf-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 9px 12px;
  cursor: pointer;
  transition: background .15s;
  border-radius: 8px;
  margin: 2px 6px;
}
.pdf-item:hover { background: #1e293b; }
.pdf-item.active {
  background: #1e3a5f;
  border-left: 3px solid #C8A142;
  padding-left: 9px;
}
.pdf-item-num { color: #475569; font-size: 11px; width: 18px; text-align: center; flex-shrink: 0; margin-top: 2px; }
.pdf-item.active .pdf-item-num { color: #C8A142; font-weight: 700; }
.pdf-item-icon { font-size: 1.2rem; flex-shrink: 0; }
.pdf-item-info { flex: 1; overflow: hidden; }
.pdf-item-title {
  color: #cbd5e1;
  font-size: 12px;
  line-height: 1.4;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.pdf-item.active .pdf-item-title { color: #fff; font-weight: 600; }
.pdf-item-size { color: #475569; font-size: 11px; margin-top: 2px; }

/* Footer */
.pdf-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 18px;
  border-top: 1px solid #1e293b;
  gap: 12px;
  flex-shrink: 0;
}
.pdf-footer-info { color: #334155; font-size: 11px; text-align: center; flex: 1; }
.pdf-nav-btn {
  background: #1e293b;
  border: 1px solid #334155;
  color: #94a3b8;
  padding: 7px 16px;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  transition: all .2s;
  white-space: nowrap;
}
.pdf-nav-btn:hover:not(:disabled) { background: #C8A142; color: #0d1b2a; border-color: #C8A142; font-weight: 600; }
.pdf-nav-btn:disabled { opacity: .35; cursor: not-allowed; }

/* Bouton Lire sur les cartes produits */
.pdf-read-btn {
  background: #1e3a5f;
  border: 1px solid #2a5298;
  color: #C8A142;
  padding: 7px 12px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s;
  white-space: nowrap;
}
.pdf-read-btn:hover { background: #C8A142; color: #0d1b2a; border-color: #C8A142; }

/* Responsive */
@media (max-width: 768px) {
  .pdf-dialog { height: 100vh; border-radius: 0; }
  .pdf-body { flex-direction: column; }
  .pdf-sidebar { width: 100%; height: 180px; border-left: none; border-top: 1px solid #1e293b; }
  .pdf-sidebar-items { display: flex; flex-direction: row; overflow-x: auto; overflow-y: hidden; padding: 6px; }
  .pdf-item { min-width: 160px; flex-direction: column; align-items: flex-start; }
  .pdf-footer { padding: 8px 12px; }
  .pdf-footer-info { display: none; }
}

/* ── WORD DOCUMENT MODAL ─────────────────────────────────────────────────── */
.word-overlay {
  display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.82);
  z-index: 9000; align-items: center; justify-content: center; padding: 10px;
}
.word-overlay.active { display: flex; }
.word-dialog {
  background: #1a1d26; border-radius: 16px; width: 100%; max-width: 1200px;
  height: 90vh; display: flex; flex-direction: column; overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,0.6);
}
.word-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; background: #12151f; border-bottom: 1px solid #2a2e3e;
  gap: 12px; flex-shrink: 0;
}
.word-header-left { display: flex; align-items: center; gap: 12px; min-width: 0; }
.word-icon { font-size: 28px; flex-shrink: 0; }
.word-collection-label { font-size: 11px; color: #6c7a99; text-transform: uppercase; letter-spacing: .5px; }
.word-title-label { font-size: 14px; font-weight: 600; color: #fff; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 400px; }
.word-header-right { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.word-counter { font-size: 12px; color: #6c7a99; white-space: nowrap; }
.word-buy-btn {
  background: linear-gradient(135deg, #1565c0, #1976d2); color: #fff;
  border: none; border-radius: 8px; padding: 8px 16px; font-size: 13px;
  font-weight: 600; cursor: pointer; white-space: nowrap;
  transition: all .2s; display: flex; align-items: center; gap: 6px;
}
.word-buy-btn:hover { background: linear-gradient(135deg, #1976d2, #1e88e5); transform: translateY(-1px); }
.word-close-btn {
  background: rgba(255,255,255,.08); color: #fff; border: none; border-radius: 8px;
  width: 32px; height: 32px; cursor: pointer; font-size: 16px;
  display: flex; align-items: center; justify-content: center;
}
.word-close-btn:hover { background: rgba(255,255,255,.15); }
.word-body { display: flex; flex: 1; overflow: hidden; }
.word-sommaire {
  width: 280px; flex-shrink: 0; background: #12151f;
  border-right: 1px solid #2a2e3e; display: flex; flex-direction: column; overflow: hidden;
}
.word-sommaire-header {
  padding: 12px 16px; font-size: 12px; font-weight: 700; color: #6c7a99;
  text-transform: uppercase; letter-spacing: .5px; border-bottom: 1px solid #2a2e3e;
  flex-shrink: 0;
}
.word-sommaire-items { flex: 1; overflow-y: auto; padding: 8px 0; }
.word-sommaire-items::-webkit-scrollbar { width: 4px; }
.word-sommaire-items::-webkit-scrollbar-thumb { background: #2a2e3e; border-radius: 2px; }
.word-section-header {
  padding: 10px 14px 4px; font-size: 10px; font-weight: 700; color: #4a90d9;
  text-transform: uppercase; letter-spacing: .5px;
}
.word-item {
  display: flex; align-items: center; gap: 10px; padding: 9px 14px;
  cursor: pointer; transition: background .15s; border-radius: 8px; margin: 1px 6px;
}
.word-item:hover { background: rgba(255,255,255,.06); }
.word-item.active { background: rgba(69,130,236,.15); border: 1px solid rgba(69,130,236,.3); }
.word-item-icon { font-size: 18px; flex-shrink: 0; }
.word-item-info { flex: 1; min-width: 0; }
.word-item-title { font-size: 11.5px; color: #c9d1e0; line-height: 1.3; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.word-item-price { font-size: 10px; color: #4a90d9; font-weight: 600; margin-top: 2px; display: block; }
.word-item-lock { font-size: 12px; color: #4a5568; flex-shrink: 0; }
.word-item.active .word-item-lock { color: #f6ad55; }
.word-viewer-wrap {
  flex: 1; display: flex; flex-direction: column; position: relative; background: #0e1018;
}
.word-watermark-banner {
  background: linear-gradient(90deg, rgba(245,158,11,.15), rgba(239,68,68,.1));
  border-bottom: 1px solid rgba(245,158,11,.3);
  padding: 8px 20px; font-size: 12px; color: #f6ad55;
  text-align: center; flex-shrink: 0;
}
.word-watermark-banner strong { color: #fff; }
.word-loading {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  background: #0e1018; z-index: 2; gap: 12px; color: #6c7a99;
}
.word-spinner {
  width: 28px; height: 28px; border: 3px solid #2a2e3e;
  border-top-color: #4a90d9; border-radius: 50%; animation: spin .8s linear infinite;
}
.word-iframe { flex: 1; border: none; width: 100%; height: 100%; }
.word-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 20px; background: #12151f; border-top: 1px solid #2a2e3e; flex-shrink: 0;
}
.word-nav-btn {
  background: rgba(255,255,255,.08); color: #c9d1e0; border: none;
  border-radius: 8px; padding: 8px 16px; cursor: pointer; font-size: 13px;
  transition: background .2s;
}
.word-nav-btn:hover:not(:disabled) { background: rgba(255,255,255,.15); }
.word-nav-btn:disabled { opacity: .3; cursor: not-allowed; }
.word-doc-info { font-size: 12px; color: #6c7a99; }
.word-preview-btn { background: rgba(21,101,192,.2) !important; color: #90caf9 !important; border: 1px solid rgba(21,101,192,.4) !important; }
.word-preview-btn:hover { background: rgba(21,101,192,.35) !important; }
@media (max-width: 768px) {
  .word-sommaire { display: none; }
  .word-title-label { max-width: 180px; }
  .word-buy-btn { font-size: 11px; padding: 6px 10px; }
}

/* ── PORTAILS DE RECHERCHE SCIENTIFIQUE ───────────────────────────────────── */
.portails-section {
  margin-top: 64px;
  padding-top: 48px;
  border-top: 1px solid var(--border);
}

.portails-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 36px;
}
.portails-icon {
  font-size: 2.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.portails-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.portails-header p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.portails-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.portail-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
  overflow: hidden;
}
.portail-card:hover {
  border-color: var(--secondary);
  box-shadow: 0 8px 32px rgba(200,161,66,.15);
  transform: translateY(-3px);
}
.portail-card:hover .portail-link {
  color: var(--secondary);
}

.portail-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
  letter-spacing: .4px;
  text-transform: uppercase;
}
.portail-badge.dz  { background: #e8f5e9; color: #2e7d32; }
.portail-badge.fr  { background: #e3f2fd; color: #1565c0; }
.portail-badge.intl { background: #fce4ec; color: #c62828; }

.portail-logo {
  font-size: 2rem;
  line-height: 1;
}

.portail-info h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.portail-info p {
  font-size: 0.83rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.portail-link {
  margin-top: auto;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-light);
  transition: color .2s;
}

.portail-card--green:hover {
  border-color: #2e7d32;
  box-shadow: 0 8px 32px rgba(46,125,50,.15);
}
.portail-card--green:hover .portail-link { color: #2e7d32; }

.portail-card--energy:hover {
  border-color: #f57c00;
  box-shadow: 0 8px 32px rgba(245,124,0,.15);
}
.portail-card--energy:hover .portail-link { color: #f57c00; }

.portail-card--scopus:hover {
  border-color: #6a1b9a;
  box-shadow: 0 8px 32px rgba(106,27,154,.15);
}
.portail-card--scopus:hover .portail-link { color: #6a1b9a; }
.portail-badge.intl[class*="Scopus"] {
  background: #f3e5f5;
  color: #6a1b9a;
}

@media (max-width: 768px) {
  .portails-grid { grid-template-columns: 1fr; }
  .portails-header { flex-direction: column; gap: 10px; }
}

/* ── LECTEUR PLAYLIST YOUTUBE ─────────────────────────────────────────────── */
.yt-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.92);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.yt-overlay[style*="flex"] { display: flex; }

.yt-dialog {
  background: #0d1b2a;
  border-radius: 18px;
  width: 100%;
  max-width: 1100px;
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 32px 100px rgba(0,0,0,.8);
  border: 1px solid #1e293b;
}

/* Header */
.yt-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-bottom: 1px solid #1e293b;
  gap: 12px;
  min-height: 52px;
}
.yt-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow: hidden;
  flex: 1;
}
.yt-source-badge {
  background: #C8A142;
  color: #0d1b2a;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
  white-space: nowrap;
  letter-spacing: .4px;
  flex-shrink: 0;
}
.yt-title {
  color: #e2e8f0;
  font-weight: 600;
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.yt-header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.yt-counter {
  color: #64748b;
  font-size: 13px;
  white-space: nowrap;
}
.yt-close-btn {
  background: #1e293b;
  border: none;
  color: #94a3b8;
  font-size: 18px;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .2s;
}
.yt-close-btn:hover { background: #e63946; color: #fff; }

/* Body = player + panel */
.yt-body {
  display: flex;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

/* Player */
.yt-player-wrap {
  flex: 1;
  background: #000;
  min-height: 0;
  position: relative;
}
.yt-player-wrap #yt-player,
.yt-player-wrap iframe {
  width: 100% !important;
  height: 100% !important;
  min-height: 300px;
  border: none;
  display: block;
}

/* Playlist panel */
.yt-playlist-panel {
  width: 300px;
  flex-shrink: 0;
  background: #0a1628;
  border-left: 1px solid #1e293b;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.yt-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid #1e293b;
  color: #cbd5e1;
  font-size: 13px;
  font-weight: 600;
  flex-shrink: 0;
}
.yt-panel-count {
  color: #64748b;
  font-size: 12px;
  font-weight: 400;
}
.yt-panel-items {
  overflow-y: auto;
  flex: 1;
  padding: 6px 0;
}
.yt-panel-items::-webkit-scrollbar { width: 4px; }
.yt-panel-items::-webkit-scrollbar-thumb { background: #1e293b; border-radius: 2px; }

/* Item de playlist */
.yt-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  cursor: pointer;
  transition: background .15s;
  border-radius: 8px;
  margin: 2px 6px;
}
.yt-item:hover { background: #1e293b; }
.yt-item.active { background: #1e3a5f; border-left: 3px solid #C8A142; padding-left: 9px; }

.yt-item-num {
  color: #475569;
  font-size: 11px;
  width: 18px;
  text-align: center;
  flex-shrink: 0;
}
.yt-item.active .yt-item-num { color: #C8A142; font-weight: 700; }

.yt-item-thumb {
  width: 72px;
  height: 44px;
  border-radius: 6px;
  background-size: cover;
  background-position: center;
  background-color: #1e293b;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}
.yt-item-play {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.5);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
  opacity: 0;
  transition: opacity .15s;
}
.yt-item:hover .yt-item-play,
.yt-item.active .yt-item-play { opacity: 1; }
.yt-item.active .yt-item-play { background: rgba(200,161,66,.4); color: #C8A142; }

.yt-item-info {
  flex: 1;
  overflow: hidden;
}
.yt-item-title {
  color: #cbd5e1;
  font-size: 12px;
  line-height: 1.4;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.yt-item.active .yt-item-title { color: #fff; font-weight: 600; }
.yt-item-dur {
  color: #475569;
  font-size: 11px;
  margin-top: 2px;
}

/* Footer nav */
.yt-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 18px;
  border-top: 1px solid #1e293b;
  gap: 12px;
}
.yt-footer-info {
  color: #334155;
  font-size: 11px;
  text-align: center;
  flex: 1;
}
.yt-nav-btn {
  background: #1e293b;
  border: 1px solid #334155;
  color: #94a3b8;
  padding: 7px 16px;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  transition: all .2s;
  white-space: nowrap;
}
.yt-nav-btn:hover:not(:disabled) { background: #C8A142; color: #0d1b2a; border-color: #C8A142; font-weight: 600; }
.yt-nav-btn:disabled { opacity: .35; cursor: not-allowed; }

/* Responsive */
@media (max-width: 768px) {
  .yt-dialog { max-height: 100vh; border-radius: 0; }
  .yt-body { flex-direction: column; }
  .yt-playlist-panel {
    width: 100%;
    height: 200px;
    border-left: none;
    border-top: 1px solid #1e293b;
  }
  .yt-panel-items { display: flex; flex-direction: row; overflow-x: auto; overflow-y: hidden; padding: 6px; }
  .yt-item { min-width: 160px; flex-direction: column; align-items: flex-start; gap: 6px; }
  .yt-item-thumb { width: 100%; height: 80px; }
  .yt-item-num { display: none; }
  .yt-footer { padding: 8px 12px; }
  .yt-footer-info { display: none; }
}

/* ── CHECKOUT MODAL ──────────────────────────────────────────────────────── */
.checkout-overlay {
  position: fixed; inset: 0; z-index: 9500;
  background: rgba(0,0,0,.72); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
}
.checkout-box {
  background: #fff; border-radius: 20px;
  width: 100%; max-width: 520px;
  max-height: 90vh; overflow-y: auto;
  padding: 32px 28px; position: relative;
  box-shadow: 0 24px 64px rgba(0,0,0,.35);
}
.co-close {
  position: absolute; top: 14px; right: 16px;
  background: none; border: none; font-size: 20px;
  cursor: pointer; color: #64748b; line-height: 1;
}
.co-title {
  font-size: 1.3rem; font-weight: 800; color: #1B3A6B;
  margin: 0 0 4px; text-align: center;
}
.co-order-number {
  text-align: center; font-size: 12px; color: #94a3b8;
  margin-bottom: 18px; letter-spacing: .5px;
}
/* Récapitulatif commande */
.co-summary {
  background: #f8fafc; border-radius: 12px;
  padding: 14px 16px; margin-bottom: 20px;
  border: 1px solid #e2e8f0;
}
.co-order-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 6px 0; font-size: 13.5px; color: #334155;
  border-bottom: 1px dashed #e2e8f0;
}
.co-order-item:last-child { border-bottom: none; }
.co-total-row {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 10px; margin-top: 6px; border-top: 2px solid #1B3A6B;
  font-size: 15px;
}
.co-total-amt { color: #1B3A6B; font-size: 1.1rem; }
/* Onglets méthodes */
.co-tabs {
  display: flex; gap: 6px; margin-bottom: 18px; flex-wrap: wrap;
}
.co-tab {
  flex: 1; padding: 9px 10px; border-radius: 10px;
  border: 2px solid #e2e8f0; background: #f8fafc;
  font-size: 12.5px; font-weight: 600; cursor: pointer;
  color: #64748b; transition: all .2s; white-space: nowrap;
  min-width: 0;
}
.co-tab.active {
  background: #1B3A6B; color: #fff; border-color: #1B3A6B;
}
.co-tab:hover:not(.active) { border-color: #1B3A6B; color: #1B3A6B; }
/* Panneau paiement */
.co-bank-info {
  background: #eff6ff; border: 1px solid #bfdbfe;
  border-radius: 10px; padding: 12px 14px; margin-bottom: 14px;
}
.co-bank-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 5px 0; font-size: 13px; color: #1e3a5f;
  border-bottom: 1px dashed #bfdbfe;
}
.co-bank-row:last-child { border-bottom: none; }
.co-bank-row span { color: #64748b; }
.co-bank-row strong { color: #1B3A6B; font-weight: 700; }
.co-instructions {
  font-size: 13px; color: #475569; margin-bottom: 10px; line-height: 1.5;
}
.co-input {
  width: 100%; padding: 11px 14px; border: 2px solid #e2e8f0;
  border-radius: 10px; font-size: 14px; color: #1e293b;
  margin-bottom: 14px; outline: none; box-sizing: border-box;
  transition: border-color .2s;
}
.co-input:focus { border-color: #1B3A6B; }
.co-submit { font-size: 15px; font-weight: 700; padding: 13px; }
/* Écran succès */
.co-success {
  text-align: center;
}
.co-success-icon { font-size: 56px; margin-bottom: 8px; }
.co-success-title {
  font-size: 1.5rem; font-weight: 800; color: #16a34a; margin: 0 0 8px;
}
.co-success-sub { color: #64748b; font-size: 14px; margin-bottom: 20px; }
.co-dl-list {
  text-align: left; border: 1px solid #e2e8f0;
  border-radius: 12px; overflow: hidden;
}
.co-dl-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; gap: 12px;
  border-bottom: 1px solid #f1f5f9;
}
.co-dl-item:last-child { border-bottom: none; }
.co-dl-info {
  display: flex; align-items: center; gap: 10px; flex: 1; min-width: 0;
}
.co-dl-icon { font-size: 20px; flex-shrink: 0; }
.co-dl-title {
  font-size: 13.5px; font-weight: 600; color: #1e293b;
  overflow: hidden; white-space: nowrap; text-overflow: ellipsis;
}
.co-dl-btn {
  background: #1B3A6B; color: #fff; border: none;
  border-radius: 8px; padding: 8px 14px; font-size: 13px;
  font-weight: 700; cursor: pointer; white-space: nowrap;
  flex-shrink: 0; transition: background .2s;
}
.co-dl-btn:hover { background: #2a5298; }
.co-dl-soon {
  font-size: 12px; color: #94a3b8; white-space: nowrap; flex-shrink: 0;
}
/* Bouton "Mon téléchargement" sur les cartes produits */
.co-purchased-btn {
  background: linear-gradient(135deg, #16a34a, #15803d);
  color: #fff; border: none; border-radius: 10px;
  padding: 9px 14px; font-size: 12.5px; font-weight: 700;
  cursor: pointer; transition: all .2s; white-space: nowrap;
  flex: 1;
}
.co-purchased-btn:hover { background: #15803d; transform: scale(1.03); }
@media (max-width: 500px) {
  .checkout-box { padding: 24px 16px; }
  .co-tabs { flex-direction: column; }
  .co-tab { flex: none; text-align: left; }
}

/* ── SUBSCRIPTION MODAL ──────────────────────────────────────────────────────── */
.sub-overlay {
  position: fixed; inset: 0; z-index: 9500;
  background: rgba(0,0,0,.72); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center; padding: 16px;
}
.sub-box {
  background: #fff; border-radius: 20px; width: 100%; max-width: 480px;
  max-height: 92vh; overflow-y: auto; padding: 28px 24px; position: relative;
  box-shadow: 0 24px 64px rgba(0,0,0,.35);
}
.sub-close {
  position: absolute; top: 12px; right: 14px; background: none; border: none;
  font-size: 20px; cursor: pointer; color: #64748b; line-height: 1;
}
/* En-tête plan */
.sub-plan-header {
  display: flex; align-items: center; gap: 14px; margin-bottom: 20px;
  padding-bottom: 16px; border-bottom: 2px solid #f1f5f9;
}
.sub-plan-icon { font-size: 36px; }
.sub-plan-name { font-size: 1.2rem; font-weight: 800; color: #1B3A6B; }
.sub-plan-tagline { font-size: 13px; color: #64748b; margin-top: 2px; }
/* Prix */
.sub-pricing-block {
  text-align: center; margin-bottom: 18px; padding: 14px;
  background: #f8faff; border-radius: 12px; border: 1px solid #dbeafe;
}
.sub-price-display { display: flex; align-items: baseline; gap: 6px; justify-content: center; }
.sub-price-amount { font-size: 2rem; font-weight: 900; color: #1B3A6B; }
.sub-price-period { font-size: 14px; color: #64748b; }
.sub-save-badge {
  display: inline-block; background: #dcfce7; color: #16a34a;
  font-size: 12px; font-weight: 700; padding: 3px 10px;
  border-radius: 20px; margin-top: 6px;
}
.sub-toggle-btn {
  margin-top: 10px; background: none; border: 1px solid #1B3A6B;
  color: #1B3A6B; border-radius: 20px; padding: 6px 16px;
  font-size: 12.5px; font-weight: 600; cursor: pointer; transition: all .2s;
}
.sub-toggle-btn:hover { background: #1B3A6B; color: #fff; }
/* Méthodes */
.sub-methods {
  display: flex; gap: 6px; margin-bottom: 16px;
}
.sub-method-btn {
  flex: 1; padding: 9px 8px; border-radius: 10px;
  border: 2px solid #e2e8f0; background: #f8fafc;
  font-size: 12.5px; font-weight: 600; cursor: pointer; color: #64748b;
  transition: all .2s;
}
.sub-method-btn.active { background: #1B3A6B; color: #fff; border-color: #1B3A6B; }
.sub-method-btn:hover:not(.active) { border-color: #1B3A6B; color: #1B3A6B; }
/* Bank info */
.sub-bank-info {
  background: #eff6ff; border: 1px solid #bfdbfe; border-radius: 10px;
  padding: 12px 14px; margin-bottom: 12px;
}
.sub-bank-row {
  display: flex; justify-content: space-between; font-size: 13px;
  padding: 5px 0; border-bottom: 1px dashed #bfdbfe; color: #1e3a5f;
}
.sub-bank-row:last-child { border-bottom: none; }
.sub-bank-row span { color: #64748b; }
.sub-bank-row strong { color: #1B3A6B; font-weight: 700; }
.sub-instructions { font-size: 13px; color: #475569; margin-bottom: 10px; line-height: 1.5; }
/* Submit */
.sub-submit-btn { font-size: 15px; font-weight: 700; padding: 13px; margin-top: 14px; }
.sub-fine-print { text-align: center; font-size: 11.5px; color: #94a3b8; margin-top: 10px; }
/* Succès abonnement */
.sub-success { text-align: center; }
.sub-success-icon { font-size: 60px; margin-bottom: 10px; }
.sub-success-title { font-size: 1.5rem; font-weight: 800; color: #16a34a; margin: 0 0 6px; }
.sub-success-plan { font-size: 1rem; font-weight: 700; color: #1B3A6B; margin-bottom: 10px; }
.sub-success-desc { font-size: 14px; color: #475569; line-height: 1.6; margin-bottom: 16px; }
.sub-success-perks { text-align: left; border: 1px solid #dcfce7; border-radius: 10px; padding: 12px 16px; }
.sub-perk { font-size: 13.5px; color: #15803d; padding: 5px 0; }
/* Dashboard dropdown upgrade */
.dropdown-upgrade { color: #C8A142 !important; font-weight: 700 !important; }
.dropdown-upgrade:hover { background: #fef9ee !important; }
/* Statut abonnement */
.sub-status-card {
  display: flex; align-items: center; gap: 14px;
  padding: 16px; border-radius: 12px; border: 2px solid;
}
.sub-status-card.active { border-color: #86efac; background: #f0fdf4; }
.sub-status-card.inactive { border-color: #e2e8f0; background: #f8fafc; }
.sub-status-icon { font-size: 32px; }
.sub-status-info { flex: 1; }
.sub-status-plan { font-size: 15px; font-weight: 700; color: #1e293b; }
.sub-status-expires { font-size: 12.5px; color: #64748b; margin-top: 3px; }
.badge-active { background: #dcfce7; color: #16a34a; padding: 4px 10px; border-radius: 20px; font-size: 12px; font-weight: 700; white-space: nowrap; }
.badge-free { background: #f1f5f9; color: #64748b; padding: 4px 10px; border-radius: 20px; font-size: 12px; font-weight: 700; white-space: nowrap; }
@media (max-width: 500px) {
  .sub-box { padding: 20px 16px; }
  .sub-methods { flex-direction: column; }
}