/* Page-specific styles */
    .stats-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1px;
      background: var(--border);
      border-radius: var(--r-lg);
      overflow: hidden;
      margin-top: 80px;
    }

    .stat-cell {
      background: var(--surface);
      padding: 2rem;
      text-align: center;
    }

    .pillars-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.2rem;
    }

    .pillar-card {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: 12px;
      padding: 1.5rem 1.2rem 1.2rem;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--r-lg);
      transition: all 0.3s;
    }

    .pillar-card:hover {
      border-color: var(--border-hi);
      background: var(--surface-2);
      transform: translateY(-3px);
      box-shadow: 0 12px 32px rgba(16, 185, 129, 0.12);
    }

    .pillar-card-head {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 10px;
      width: 100%;
    }

    .pillar-card-img {
      width: 88px;
      height: 88px;
      border-radius: 50%;
      object-fit: cover;
      border: 2px solid rgba(16, 185, 129, 0.3);
      background: rgba(16, 185, 129, 0.06);
      box-shadow: 0 0 20px rgba(16, 185, 129, 0.15);
      flex-shrink: 0;
      transition: transform 0.3s, box-shadow 0.3s;
    }

    .pillar-card:hover .pillar-card-img {
      transform: scale(1.08);
      box-shadow: 0 0 30px rgba(16, 185, 129, 0.3);
    }

    .pillar-card-title {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text);
    }

    .pillar-card-desc {
      font-size: 0.73rem;
      color: var(--text-dim);
      line-height: 1.65;
      text-align: center;
    }

    .ai-modes-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1.5rem;
      margin-bottom: 2.5rem;
    }

    .ai-mode-card {
      display: flex;
      gap: 1.5rem;
      align-items: flex-start;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--r-lg);
      padding: 1.8rem;
      transition: all 0.3s;
    }

    .ai-mode-card:hover {
      border-color: var(--border-hi);
      transform: translateY(-2px);
      box-shadow: 0 12px 32px rgba(16, 185, 129, 0.1);
    }

    .ai-mode-img {
      width: 96px;
      height: 96px;
      border-radius: 50%;
      object-fit: cover;
      border: 2px solid rgba(16, 185, 129, 0.25);
      box-shadow: 0 0 20px rgba(16, 185, 129, 0.15);
      flex-shrink: 0;
      transition: transform 0.3s, box-shadow 0.3s;
    }

    .ai-mode-card:hover .ai-mode-img {
      transform: scale(1.06);
      box-shadow: 0 0 30px rgba(16, 185, 129, 0.3);
    }

    .ai-mode-content {
      flex: 1;
    }

    .ai-mode-badge {
      display: inline-block;
      padding: 4px 12px;
      border-radius: 100px;
      font-size: 0.72rem;
      font-weight: 700;
      letter-spacing: 0.5px;
      margin-bottom: 0.6rem;
    }

    .silicon-shell-banner {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--r-lg);
      padding: 1.8rem 2rem;
    }

    .shell-title {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--text-mid);
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-bottom: 1.2rem;
    }

    .shell-layers {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      flex-wrap: wrap;
    }

    .shell-layer {
      display: flex;
      align-items: center;
      gap: 10px;
      background: var(--surface-2);
      border-radius: var(--r-md);
      padding: 10px 14px;
      flex: 1;
      min-width: 120px;
    }

    .shell-layer-num {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: rgba(16, 185, 129, 0.15);
      color: var(--emerald);
      font-size: 0.78rem;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .shell-layer-name {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--text);
    }

    .shell-layer-desc {
      font-size: 0.68rem;
      color: var(--text-dim);
      margin-top: 2px;
    }

    .shell-arrow {
      color: var(--text-dim);
      font-size: 1rem;
      flex-shrink: 0;
    }

    @media (max-width: 900px) {
      .ai-modes-grid {
        grid-template-columns: 1fr;
      }

      .shell-layers {
        flex-direction: column;
        align-items: stretch;
      }

      .shell-arrow {
        transform: rotate(90deg);
        text-align: center;
      }
    }

    .qr-visual {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--r-lg);
      padding: 2rem;
      text-align: center;
    }

    .qr-code-mock {
      width: 140px;
      height: 140px;
      margin: 0 auto 1rem;
      background:
        repeating-linear-gradient(90deg, var(--emerald) 0, var(--emerald) 3px, transparent 0, transparent 10px),
        repeating-linear-gradient(0deg, var(--emerald) 0, var(--emerald) 3px, transparent 0, transparent 10px);
      opacity: 0.4;
      border-radius: 8px;
    }

    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1.5rem;
    }

    .scenario-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--r-lg);
      padding: 2rem;
      display: flex;
      gap: 1.5rem;
      align-items: flex-start;
      transition: all 0.3s;
    }

    .scenario-card:hover {
      border-color: var(--border-hi);
    }

    .scenario-icon {
      font-size: 2.2rem;
      flex-shrink: 0;
    }

    .countries-bar {
      display: flex;
      align-items: center;
      gap: 2rem;
      flex-wrap: wrap;
      justify-content: center;
      opacity: 0.5;
    }

    .country-flag {
      font-size: 2rem;
    }

    .pillar-card-disabled {
      opacity: 0.38;
      filter: grayscale(0.7);
      pointer-events: none;
      position: relative;
    }

    .pillar-coming-soon {
      display: inline-block;
      margin-top: 6px;
      padding: 2px 8px;
      border-radius: 100px;
      font-size: 0.62rem;
      font-weight: 700;
      letter-spacing: 0.4px;
      background: rgba(245,158,11,0.12);
      color: #f59e0b;
      border: 1px solid rgba(245,158,11,0.25);
    }

    @media (max-width: 900px) {
      .stats-row {
        grid-template-columns: repeat(2, 1fr);
      }

      .pillars-grid {
        grid-template-columns: 1fr 1fr;
      }

      .scenarios-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 600px) {
      .pillars-grid {
        grid-template-columns: 1fr 1fr;
      }

      .pillar-card-img {
        width: 72px;
        height: 72px;
      }
    }

    @media (max-width: 400px) {
      .pillars-grid {
        grid-template-columns: 1fr;
      }
    }

/* ════════════════════════════════════════════════════════════════
   FOR HACKATHON JUDGES — Home page section (added Livraison 2A)
   ════════════════════════════════════════════════════════════════ */

.judge-ribbon-home {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 22px;
  background: linear-gradient(90deg, rgba(245, 158, 11, 0.15), rgba(245, 158, 11, 0.05));
  border: 1px solid rgba(245, 158, 11, 0.4);
  border-radius: 999px;
  font-size: 0.88rem;
  color: var(--amber);
}

/* ── Home YouTube Frame ─────────────────────────────────────── */
.home-youtube-frame {
  max-width: 900px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5),
              0 0 60px rgba(16, 185, 129, 0.1);
}

.home-youtube-aspect {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 */
  background: #000;
}

.home-youtube-aspect iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ── Quick Tiles (3 tiles after the video) ──────────────────── */
.judge-quick-tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  max-width: 900px;
  margin: 0 auto;
}

.judge-quick-tile {
  display: grid;
  grid-template-columns: 44px 1fr 28px;
  gap: 1rem;
  padding: 1.2rem 1.4rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  text-decoration: none;
  color: inherit;
  align-items: center;
  transition: all 0.3s;
}

.judge-quick-tile:hover {
  border-color: var(--border-hi);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(16, 185, 129, 0.12);
}

.judge-quick-tile:hover .judge-quick-tile-arrow {
  transform: translateX(4px);
  color: var(--emerald);
}

.judge-quick-tile-icon {
  font-size: 1.5rem;
  text-align: center;
}

.judge-quick-tile-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.judge-quick-tile-content strong {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
}

.judge-quick-tile-content span {
  font-size: 0.78rem;
  color: var(--text-mid);
  line-height: 1.5;
}

.judge-quick-tile-arrow {
  font-size: 1.2rem;
  color: var(--text-mid);
  transition: all 0.3s;
  font-family: var(--font-mono);
}

@media (max-width: 768px) {
  .judge-quick-tiles {
    grid-template-columns: 1fr;
  }
}