/* ============================================
   NIVEAU 17 — LA FLEXBOX
   Styles spécifiques aux démonstrations Flexbox
   ============================================ */

/* ---------- AXE DIRECTION DEMOS ---------- */
.demo-flex-direction {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 1.5rem;
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
}

.dir-demo {
  flex: 1;
  min-width: 200px;
  text-align: center;
}

.dir-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--couleur-texte-clair);
  font-family: var(--police-code);
  background: #f1f5f9;
  padding: 0.2em 0.6em;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 0.5rem;
}

.dir-box {
  display: flex;
  gap: 0.5rem;
  padding: 1rem;
  background: #f8fafc;
  border: 2px dashed var(--couleur-bordure);
  border-radius: var(--rayon);
  min-height: 120px;
}

.dir-box.row { flex-direction: row; }
.dir-box.column { flex-direction: column; }
.dir-box.row-reverse { flex-direction: row-reverse; }
.dir-box.column-reverse { flex-direction: column-reverse; }

.dir-item {
  padding: 0.5rem 1rem;
  background: linear-gradient(135deg, var(--couleur-primaire), var(--couleur-secondaire));
  color: white;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.85rem;
  min-width: 50px;
  text-align: center;
}

/* ---------- FLEX WRAP DEMOS ---------- */
.demo-flex-wrap {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 1.5rem;
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
}

.wrap-demo {
  flex: 1;
  min-width: 250px;
}

.wrap-box {
  display: flex;
  gap: 0.5rem;
  padding: 1rem;
  background: #f8fafc;
  border: 2px dashed var(--couleur-bordure);
  border-radius: var(--rayon);
  min-height: 120px;
}

.wrap-box.nowrap { flex-wrap: nowrap; }
.wrap-box.wrap { flex-wrap: wrap; }
.wrap-box.wrap-reverse { flex-wrap: wrap-reverse; }

.wrap-item {
  padding: 0.5rem 1rem;
  background: linear-gradient(135deg, #16a34a, #06b6d4);
  color: white;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.85rem;
  min-width: 90px;
  text-align: center;
  white-space: nowrap;
}

/* ---------- JUSTIFY-CONTENT DEMOS ---------- */
.demo-justify {
  display: grid;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
}

.justify-item {
  text-align: center;
}

.justify-box {
  display: flex;
  gap: 0.5rem;
  padding: 1rem;
  background: #f8fafc;
  border: 2px dashed var(--couleur-bordure);
  border-radius: var(--rayon);
  min-height: 80px;
  align-items: center;
}

.justify-box.flex-start { justify-content: flex-start; }
.justify-box.flex-end { justify-content: flex-end; }
.justify-box.center { justify-content: center; }
.justify-box.space-between { justify-content: space-between; }
.justify-box.space-around { justify-content: space-around; }
.justify-box.space-evenly { justify-content: space-evenly; }

.justify-child {
  padding: 0.4rem 0.8rem;
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  color: white;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.8rem;
}

/* ---------- ALIGN-ITEMS DEMOS ---------- */
.demo-align-items {
  display: grid;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
}

.align-item-demo {
  text-align: center;
}

.align-box {
  display: flex;
  gap: 0.5rem;
  padding: 1rem;
  background: #f8fafc;
  border: 2px dashed var(--couleur-bordure);
  border-radius: var(--rayon);
  min-height: 150px;
}

.align-box.stretch { align-items: stretch; }
.align-box.flex-start { align-items: flex-start; }
.align-box.flex-end { align-items: flex-end; }
.align-box.center { align-items: center; }
.align-box.baseline { align-items: baseline; }

.align-child {
  padding: 0.5rem 0.8rem;
  background: linear-gradient(135deg, #7c3aed, #ec4899);
  color: white;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.8rem;
}

.align-child.tall {
  font-size: 1.2rem;
  padding: 1.5rem 0.8rem;
}

.align-child.short {
  font-size: 0.7rem;
  padding: 0.3rem 0.8rem;
}

/* ---------- GAP DEMOS ---------- */
.demo-gap-flex {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 1.5rem;
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
}

.gap-demo {
  flex: 1;
  min-width: 200px;
  text-align: center;
}

.gap-box {
  display: flex;
  gap: 1rem;
  padding: 1rem;
  background: #f8fafc;
  border: 2px dashed var(--couleur-bordure);
  border-radius: var(--rayon);
}

.gap-box.column {
  flex-direction: column;
}

.gap-box.row-col {
  flex-wrap: wrap;
}

.gap-child {
  padding: 0.5rem 1rem;
  background: linear-gradient(135deg, #06b6d4, #2563eb);
  color: white;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.85rem;
}

/* ---------- FLEX ITEM PROPERTIES DEMOS ---------- */
.demo-flex-grow {
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
  margin-bottom: 1.5rem;
}

.grow-item {
  padding: 1rem;
  background: linear-gradient(135deg, var(--couleur-primaire), var(--couleur-secondaire));
  color: white;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.85rem;
  text-align: center;
}

.grow-0 { flex-grow: 0; }
.grow-1 { flex-grow: 1; }
.grow-2 { flex-grow: 2; }
.grow-3 { flex-grow: 3; }

/* ---------- ORDER DEMOS ---------- */
.demo-order {
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
}

.order-item {
  padding: 1rem;
  background: linear-gradient(135deg, #16a34a, #84cc16);
  color: white;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.85rem;
  text-align: center;
}

.order-1 { order: 1; }
.order-2 { order: 2; }
.order-3 { order: 3; }
.order-0 { order: 0; }
.order-neg { order: -1; }

/* ---------- ALIGN-SELF DEMOS ---------- */
.demo-align-self {
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
}

.self-item {
  padding: 0.5rem 0.8rem;
  background: linear-gradient(135deg, #ef4444, #f59e0b);
  color: white;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.75rem;
  text-align: center;
}

.self-item.default {
  align-self: auto;
}

.self-item.start {
  align-self: flex-start;
}

.self-item.end {
  align-self: flex-end;
}

.self-item.center-self {
  align-self: center;
}

.self-item.stretch-self {
  align-self: stretch;
}

/* ---------- CHEAT SHEET ---------- */
.cheat-sheet {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
}

.cheat-category {
  padding: 1rem;
  background: #f8fafc;
  border-radius: var(--rayon);
  border-left: 4px solid var(--couleur-primaire);
}

.cheat-category h4 {
  margin-bottom: 0.5rem;
  color: var(--couleur-primaire);
}

.cheat-category ul {
  list-style: none;
  padding: 0;
}

.cheat-category li {
  padding: 0.3rem 0;
  font-size: 0.85rem;
}

.cheat-category code {
  background: #e2e8f0;
  padding: 0.1em 0.4em;
  border-radius: 4px;
  font-size: 0.8rem;
}

/* ---------- PROJECT DEMOS ---------- */

/* Projet 1: Navbar */
.demo-navbar {
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
  padding: 1rem 1.5rem;
  margin-bottom: 1.5rem;
}

.demo-navbar .navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.demo-navbar .navbar-logo {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--couleur-primaire);
}

.demo-navbar .navbar-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.demo-navbar .navbar-links a {
  text-decoration: none;
  color: var(--couleur-texte);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.demo-navbar .navbar-links a:hover {
  color: var(--couleur-primaire);
}

/* Projet 2: Footer */
.demo-footer {
  background: #1e293b;
  color: white;
  border-radius: var(--rayon);
  padding: 2rem 1.5rem;
  margin-bottom: 1.5rem;
}

.demo-footer .footer-grid {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.demo-footer .footer-col {
  flex: 1;
  min-width: 150px;
}

.demo-footer .footer-col h4 {
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #94a3b8;
}

.demo-footer .footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.demo-footer .footer-col li {
  margin-bottom: 0.4rem;
}

.demo-footer .footer-col a {
  color: #cbd5e1;
  text-decoration: none;
  font-size: 0.85rem;
}

.demo-footer .footer-bottom {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid #334155;
  text-align: center;
  font-size: 0.8rem;
  color: #64748b;
}

/* Projet 3: Sidebar Layout */
.demo-sidebar-layout {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
  margin-bottom: 1.5rem;
}

.demo-sidebar-layout .sidebar {
  flex: 0 0 200px;
  padding: 1rem;
  background: #f1f5f9;
  border-radius: var(--rayon);
}

.demo-sidebar-layout .sidebar nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.demo-sidebar-layout .sidebar nav li {
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  margin-bottom: 0.25rem;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.2s;
}

.demo-sidebar-layout .sidebar nav li:hover,
.demo-sidebar-layout .sidebar nav li.active {
  background: var(--couleur-primaire);
  color: white;
}

.demo-sidebar-layout .main-content {
  flex: 1;
  padding: 1rem;
  background: #f8fafc;
  border-radius: var(--rayon);
  min-height: 200px;
}

/* Projet 4: Header CTA */
.demo-header-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2rem 2.5rem;
  background: linear-gradient(135deg, #1e293b, #334155);
  color: white;
  border-radius: var(--rayon);
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.demo-header-cta .header-text h2 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.demo-header-cta .header-text p {
  color: #94a3b8;
  font-size: 0.95rem;
}

.demo-header-cta .cta-button {
  padding: 0.75rem 1.5rem;
  background: var(--couleur-primaire);
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}

.demo-header-cta .cta-button:hover {
  background: #1d4ed8;
}

/* Projet 5: Card Grid */
.demo-card-grid {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 1.5rem;
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
  margin-bottom: 1.5rem;
}

.demo-card-grid .card {
  flex: 1;
  min-width: 200px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
  overflow: hidden;
  transition: box-shadow 0.2s, transform 0.2s;
}

.demo-card-grid .card:hover {
  box-shadow: 0 8px 25px -5px rgba(0,0,0,0.1);
  transform: translateY(-2px);
}

.demo-card-grid .card-image {
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.9rem;
}

.demo-card-grid .card-body {
  padding: 1rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.demo-card-grid .card-body h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.demo-card-grid .card-body p {
  font-size: 0.85rem;
  color: #64748b;
  line-height: 1.5;
  flex: 1;
}

.demo-card-grid .card-body .card-btn {
  display: inline-block;
  margin-top: 0.75rem;
  padding: 0.4rem 0.8rem;
  background: var(--couleur-primaire);
  color: white;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  transition: background 0.2s;
}

/* Projet 6: Pricing Table */
.demo-pricing {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 1.5rem;
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
  margin-bottom: 1.5rem;
  align-items: stretch;
}

.demo-pricing .pricing-card {
  flex: 1;
  min-width: 200px;
  display: flex;
  flex-direction: column;
  border: 2px solid var(--couleur-bordure);
  border-radius: var(--rayon);
  padding: 1.5rem;
  text-align: center;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.demo-pricing .pricing-card.featured {
  border-color: var(--couleur-primaire);
  box-shadow: 0 4px 15px -3px rgba(37, 99, 235, 0.2);
  position: relative;
}

.demo-pricing .pricing-card.featured::before {
  content: "Populaire";
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--couleur-primaire);
  color: white;
  padding: 0.2rem 0.8rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.demo-pricing .pricing-name {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.demo-pricing .pricing-price {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.demo-pricing .pricing-price span {
  font-size: 0.9rem;
  font-weight: 400;
  color: #64748b;
}

.demo-pricing .pricing-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  text-align: left;
  flex: 1;
}

.demo-pricing .pricing-features li {
  padding: 0.4rem 0;
  font-size: 0.85rem;
  color: #475569;
}

.demo-pricing .pricing-features li::before {
  content: "✓ ";
  color: #16a34a;
  font-weight: 700;
}

.demo-pricing .pricing-btn {
  display: block;
  padding: 0.6rem 1rem;
  border: 2px solid var(--couleur-primaire);
  background: transparent;
  color: var(--couleur-primaire);
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.demo-pricing .pricing-card.featured .pricing-btn {
  background: var(--couleur-primaire);
  color: white;
}

/* Projet 7: Dashboard */
.demo-dashboard {
  display: flex;
  gap: 1rem;
  padding: 1rem;
  background: #f1f5f9;
  border-radius: var(--rayon);
  margin-bottom: 1.5rem;
  min-height: 300px;
}

.demo-dashboard .dash-sidebar {
  flex: 0 0 60px;
  background: #1e293b;
  border-radius: var(--rayon);
  padding: 1rem 0.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.demo-dashboard .dash-sidebar .dash-icon {
  width: 36px;
  height: 36px;
  background: #334155;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #94a3b8;
  font-size: 0.8rem;
  cursor: pointer;
  transition: background 0.2s;
}

.demo-dashboard .dash-sidebar .dash-icon:hover,
.demo-dashboard .dash-sidebar .dash-icon.active {
  background: var(--couleur-primaire);
  color: white;
}

.demo-dashboard .dash-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.demo-dashboard .dash-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: white;
  padding: 0.75rem 1rem;
  border-radius: var(--rayon);
}

.demo-dashboard .dash-header h3 {
  font-size: 0.95rem;
}

.demo-dashboard .dash-header .avatar-sm {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--couleur-primaire), var(--couleur-secondaire));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
}

.demo-dashboard .dash-stats {
  display: flex;
  gap: 1rem;
}

.demo-dashboard .dash-stat-card {
  flex: 1;
  background: white;
  padding: 1rem;
  border-radius: var(--rayon);
  text-align: center;
}

.demo-dashboard .dash-stat-card .stat-value {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--couleur-primaire);
}

.demo-dashboard .dash-stat-card .stat-label {
  font-size: 0.75rem;
  color: #64748b;
  margin-top: 0.2rem;
}

.demo-dashboard .dash-chart {
  flex: 1;
  background: white;
  border-radius: var(--rayon);
  padding: 1rem;
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
}

.demo-dashboard .dash-bar {
  flex: 1;
  border-radius: 4px 4px 0 0;
  min-height: 20px;
  transition: height 0.3s;
}

/* Projet 8: Timeline */
.demo-timeline {
  padding: 1.5rem;
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
  margin-bottom: 1.5rem;
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--couleur-bordure);
}

.timeline-item {
  display: flex;
  gap: 1rem;
  position: relative;
  padding-bottom: 1.5rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -1.55rem;
  top: 0.3rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--couleur-primaire);
  border: 2px solid white;
  box-shadow: 0 0 0 2px var(--couleur-primaire);
}

.timeline-date {
  flex: 0 0 80px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--couleur-primaire);
  padding-top: 0.1rem;
}

.timeline-content h4 {
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.timeline-content p {
  font-size: 0.85rem;
  color: #64748b;
  line-height: 1.4;
}

/* Projet 9: Hero Section */
.demo-hero {
  position: relative;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1e293b, #0f172a);
  border-radius: var(--rayon);
  overflow: hidden;
  margin-bottom: 1.5rem;
  color: white;
}

.demo-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(37, 99, 235, 0.3) 0%, transparent 60%),
              radial-gradient(circle at 70% 50%, rgba(124, 58, 237, 0.3) 0%, transparent 60%);
}

.demo-hero .hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 2rem;
  max-width: 600px;
}

.demo-hero .hero-content h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.demo-hero .hero-content p {
  color: #94a3b8;
  font-size: 1rem;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.demo-hero .hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.demo-hero .btn-primary {
  padding: 0.75rem 1.5rem;
  background: var(--couleur-primaire);
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
}

.demo-hero .btn-secondary {
  padding: 0.75rem 1.5rem;
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
}

/* Projet 10: Image Gallery */
.demo-gallery {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1.5rem;
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
  margin-bottom: 1.5rem;
}

.gallery-item {
  flex: 1;
  min-width: 150px;
  min-height: 150px;
  border-radius: var(--rayon);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 0.85rem;
  transition: transform 0.3s;
  cursor: pointer;
}

.gallery-item:hover {
  transform: scale(1.05);
  z-index: 1;
}

.gallery-item.wide {
  flex: 2;
}

.gallery-item.tall {
  min-height: 200px;
}

/* Projet 11: Holy Grail */
.demo-holy-grail {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
  overflow: hidden;
  margin-bottom: 1.5rem;
  min-height: 350px;
}

.demo-holy-grail .hg-header {
  background: var(--couleur-primaire);
  color: white;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.demo-holy-grail .hg-body {
  display: flex;
  flex: 1;
}

.demo-holy-grail .hg-nav {
  flex: 0 0 180px;
  background: #f1f5f9;
  padding: 1rem;
}

.demo-holy-grail .hg-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.demo-holy-grail .hg-nav li {
  padding: 0.4rem 0.6rem;
  font-size: 0.85rem;
  border-radius: 4px;
  margin-bottom: 0.2rem;
  cursor: pointer;
}

.demo-holy-grail .hg-nav li:hover {
  background: #e2e8f0;
}

.demo-holy-grail .hg-main {
  flex: 1;
  padding: 1rem;
}

.demo-holy-grail .hg-main h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.demo-holy-grail .hg-main p {
  font-size: 0.85rem;
  color: #64748b;
  line-height: 1.5;
}

.demo-holy-grail .hg-aside {
  flex: 0 0 200px;
  background: #f8fafc;
  padding: 1rem;
  border-left: 1px solid var(--couleur-bordure);
}

.demo-holy-grail .hg-aside h4 {
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.demo-holy-grail .hg-footer {
  background: #1e293b;
  color: #94a3b8;
  padding: 0.75rem 1.5rem;
  text-align: center;
  font-size: 0.8rem;
}

/* Projet 12: Centering */
.demo-centering {
  display: grid;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}

.centering-method {
  text-align: center;
}

.centering-box {
  height: 150px;
  background: #f8fafc;
  border: 2px dashed var(--couleur-bordure);
  border-radius: var(--rayon);
  margin-bottom: 0.5rem;
}

.centering-box.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.centering-box.grid-center {
  display: grid;
  place-items: center;
}

.centering-box.margin-auto-center {
  display: flex;
}

.centering-box.margin-auto-center .centered-el {
  margin: auto;
}

.centering-box.position-center {
  position: relative;
}

.centering-box.position-center .centered-el {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.centering-box.text-align-center {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.centering-box.text-align-center .centered-el {
  text-align: center;
}

.centered-el-inner {
  padding: 0.5rem 1rem;
  background: var(--couleur-primaire);
  color: white;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.8rem;
}

/* ---------- COMMON PATTERNS ---------- */
.demo-patterns {
  display: grid;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

.pattern-item {
  text-align: center;
}

.pattern-box {
  height: 120px;
  background: #f8fafc;
  border: 2px dashed var(--couleur-bordure);
  border-radius: var(--rayon);
  margin-bottom: 0.5rem;
  overflow: hidden;
}

/* Sticky footer pattern */
.pattern-sticky-footer {
  display: flex;
  flex-direction: column;
  min-height: 120px;
}

.pattern-sticky-footer .pf-header {
  background: var(--couleur-primaire);
  color: white;
  padding: 0.3rem 0.5rem;
  font-size: 0.7rem;
  font-weight: 600;
}

.pattern-sticky-footer .pf-content {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #64748b;
  font-size: 0.75rem;
}

.pattern-sticky-footer .pf-footer {
  background: #1e293b;
  color: #94a3b8;
  padding: 0.3rem 0.5rem;
  font-size: 0.7rem;
  text-align: center;
}

/* Media object pattern */
.pattern-media {
  display: flex;
  gap: 0.75rem;
  padding: 0.75rem;
  align-items: flex-start;
}

.pattern-media .media-avatar {
  flex: 0 0 40px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.7rem;
}

.pattern-media .media-body {
  flex: 1;
  text-align: left;
}

.pattern-media .media-body h5 {
  font-size: 0.8rem;
  margin-bottom: 0.2rem;
}

.pattern-media .media-body p {
  font-size: 0.75rem;
  color: #64748b;
  line-height: 1.4;
}

/* Holy grail mini */
.pattern-holy-grail {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.pattern-hg-header {
  background: var(--couleur-primaire);
  padding: 0.3rem 0.5rem;
  color: white;
  font-size: 0.7rem;
  font-weight: 600;
}

.pattern-hg-body {
  display: flex;
  flex: 1;
}

.pattern-hg-nav {
  flex: 0 0 50px;
  background: #e2e8f0;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.3rem;
  gap: 0.2rem;
}

.pattern-hg-nav .nav-dot {
  width: 16px;
  height: 4px;
  background: #94a3b8;
  border-radius: 2px;
}

.pattern-hg-main {
  flex: 1;
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: #64748b;
}

.pattern-hg-aside {
  flex: 0 0 50px;
  background: #e2e8f0;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.3rem;
  gap: 0.2rem;
}

/* Input group pattern */
.pattern-input-group {
  display: flex;
  gap: 0;
  padding: 0.5rem;
  align-items: center;
}

.pattern-input-group .ig-input {
  flex: 1;
  padding: 0.4rem 0.6rem;
  border: 2px solid var(--couleur-bordure);
  border-right: none;
  border-radius: 6px 0 0 6px;
  font-size: 0.8rem;
}

.pattern-input-group .ig-btn {
  padding: 0.4rem 0.8rem;
  background: var(--couleur-primaire);
  color: white;
  border: none;
  border-radius: 0 6px 6px 0;
  font-weight: 600;
  font-size: 0.8rem;
  cursor: pointer;
}

/* ---------- ANTI-PATTERNS ---------- */
.anti-pattern-demo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
}

.anti-box {
  text-align: center;
}

.anti-preview {
  min-height: 100px;
  background: #f8fafc;
  border: 2px dashed var(--couleur-bordure);
  border-radius: var(--rayon);
  padding: 0.5rem;
  margin-bottom: 0.5rem;
}

/* Bad: margin hacks */
.bad-center {
  display: flex;
}

.bad-center .bad-el {
  margin: auto;
}

/* Good: proper centering */
.good-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------- GRID OVERLAY DEMO ---------- */
.grid-overlay-demo {
  position: relative;
  min-height: 200px;
  background: var(--couleur-blanc);
  border: 1px solid var(--couleur-bordure);
  border-radius: var(--rayon);
  overflow: hidden;
}

.grid-overlay-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

.grid-overlay-lines .axis-line {
  position: absolute;
  background: rgba(239, 68, 68, 0.4);
}

.grid-overlay-lines .axis-main {
  width: 2px;
  top: 0;
  bottom: 0;
  left: 50%;
}

.grid-overlay-lines .axis-cross {
  height: 2px;
  left: 0;
  right: 0;
  top: 50%;
}

.grid-overlay-lines .axis-label {
  position: absolute;
  background: rgba(239, 68, 68, 0.8);
  color: white;
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  font-size: 0.7rem;
  font-weight: 600;
  white-space: nowrap;
}

.grid-overlay-lines .label-main {
  bottom: 4px;
  right: 4px;
}

.grid-overlay-lines .label-cross {
  top: 4px;
  right: 4px;
}

/* ---------- RESPONSIVE OVERRIDES ---------- */
@media (max-width: 768px) {
  .demo-sidebar-layout {
    flex-direction: column;
  }

  .demo-sidebar-layout .sidebar {
    flex: none;
  }

  .demo-dashboard {
    flex-direction: column;
  }

  .demo-dashboard .dash-sidebar {
    flex: none;
    flex-direction: row;
    justify-content: center;
  }

  .demo-holy-grail .hg-body {
    flex-direction: column;
  }

  .demo-holy-grail .hg-nav,
  .demo-holy-grail .hg-aside {
    flex: none;
    border-left: none;
    border-top: 1px solid var(--couleur-bordure);
  }

  .demo-header-cta {
    flex-direction: column;
    text-align: center;
  }

  .demo-footer .footer-grid {
    flex-direction: column;
  }

  .anti-pattern-demo {
    grid-template-columns: 1fr;
  }

  .demo-pricing {
    flex-direction: column;
  }

  .demo-pricing .pricing-card {
    max-width: 320px;
    margin: 0 auto;
    width: 100%;
  }

  .demo-hero .hero-content h1 {
    font-size: 1.5rem;
  }
}