/* roulang page: index */
:root {
      --primary: #1e40af;
      --primary-hover: #1d4ed8;
      --accent: #2563eb;
      --success: #10b981;
      --warning: #f59e0b;
      --danger: #ef4444;
      --bg-light: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #64748b;
      --border-color: rgba(226, 232, 240, 0.9);
      --card-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(15, 23, 42, 0.02);
      --card-hover-shadow: 0 20px 25px -5px rgba(30, 64, 175, 0.08), 0 10px 10px -5px rgba(30, 64, 175, 0.04);
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      color: var(--text-main);
      background-color: #ffffff;
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
    }

    .custom-container {
      width: 100%;
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }

    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(248, 250, 252, 0.96) 0%, rgba(239, 246, 255, 0.92) 100%),
                  url('/assets/images/066bd6950dfa8750.jpg') center/cover no-repeat;
    }

    .dark-section-bg {
      background-color: #0b1120;
      background-image: radial-gradient(rgba(37, 99, 235, 0.15) 1px, transparent 0);
      background-size: 24px 24px;
    }

    .card-base {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 1rem;
      box-shadow: var(--card-shadow);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .card-base:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-hover-shadow);
      border-color: rgba(37, 99, 235, 0.35);
    }

    .badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 0.375rem;
      padding: 0.35rem 0.85rem;
      font-size: 0.8125rem;
      font-weight: 600;
      border-radius: 9999px;
      letter-spacing: 0.025em;
    }

    .btn-brand-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0.875rem 2rem;
      font-size: 1rem;
      font-weight: 600;
      color: #ffffff;
      background: linear-gradient(135deg, #1e40af 0%, #2563eb 100%);
      border-radius: 0.75rem;
      transition: all 0.25s ease;
      box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.35);
    }

    .btn-brand-primary:hover {
      background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
      box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
      transform: translateY(-1px);
    }

    .btn-brand-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0.875rem 1.75rem;
      font-size: 1rem;
      font-weight: 600;
      color: #1e40af;
      background-color: #ffffff;
      border: 1px solid #bfdbfe;
      border-radius: 0.75rem;
      transition: all 0.25s ease;
    }

    .btn-brand-secondary:hover {
      background-color: #eff6ff;
      border-color: #93c5fd;
    }

    details > summary {
      list-style: none;
    }
    details > summary::-webkit-details-marker {
      display: none;
    }