/* roulang page: index */
:root {
      --deep-blue: #1E293B;
      --purple: #6D28D9;
      --coral: #F97316;
      --light-bg: #F8FAFC;
      --white: #FFFFFF;
      --text-primary: #1E293B;
      --text-secondary: #475569;
      --text-muted: #64748b;
      --border-light: #e2e8f0;
      --radius-xl: 1.5rem;
      --radius-lg: 1rem;
      --radius-md: 0.75rem;
      --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.02);
      --shadow-hover: 0 25px 30px -10px rgba(0, 0, 0, 0.1), 0 10px 15px -6px rgba(0, 0, 0, 0.05);
      --transition-base: all 0.3s ease;
    }
    * {
      box-sizing: border-box;
    }
    body {
      font-family: 'Inter', system-ui, -apple-system, sans-serif;
      background-color: var(--light-bg);
      color: var(--text-primary);
      line-height: 1.6;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    .gradient-text {
      background: linear-gradient(135deg, var(--deep-blue) 0%, var(--purple) 70%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .bg-gradient-primary {
      background: linear-gradient(135deg, var(--deep-blue) 0%, var(--purple) 100%);
    }
    .glass-nav {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.4);
    }
    .card-hover {
      transition: var(--transition-base);
    }
    .card-hover:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(109, 40, 217, 0.15);
    }
    .btn-coral {
      background-color: var(--coral);
      color: white;
      font-weight: 600;
      border-radius: 9999px;
      padding: 0.75rem 2rem;
      transition: var(--transition-base);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 8px 20px -8px rgba(249, 115, 22, 0.4);
      border: none;
      cursor: pointer;
    }
    .btn-coral:hover {
      background-color: #ea580c;
      box-shadow: 0 12px 24px -10px rgba(249, 115, 22, 0.5);
      transform: translateY(-2px);
    }
    .btn-outline-light {
      background: transparent;
      border: 2px solid white;
      color: white;
      font-weight: 600;
      border-radius: 9999px;
      padding: 0.75rem 2rem;
      transition: var(--transition-base);
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .btn-outline-light:hover {
      background: white;
      color: var(--purple);
      transform: translateY(-2px);
    }
    .stat-badge {
      background: rgba(255,255,255,0.9);
      backdrop-filter: blur(4px);
      border-radius: 2rem;
      padding: 0.25rem 1rem;
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-weight: 600;
      box-shadow: 0 4px 12px rgba(0,0,0,0.04);
      border: 1px solid rgba(255,255,255,0.7);
    }
    .stat-number {
      color: var(--coral);
      font-weight: 800;
      font-size: 1.5rem;
      line-height: 1.2;
    }
    .faq-details summary {
      list-style: none;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 600;
      color: var(--deep-blue);
      padding: 1.25rem 0;
      border-bottom: 1px solid var(--border-light);
      transition: color 0.2s;
    }
    .faq-details summary::-webkit-details-marker {
      display: none;
    }
    .faq-details summary:hover {
      color: var(--purple);
    }
    .faq-details p {
      color: var(--text-muted);
      padding: 1rem 0 1.5rem;
      margin: 0;
      line-height: 1.7;
    }
    .mobile-menu {
      display: none;
    }
    @media (max-width: 768px) {
      .mobile-menu {
        display: block;
      }
      .desktop-nav-links {
        display: none;
      }
      .hero-title {
        font-size: 2.5rem;
        line-height: 1.2;
      }
    }