/* roulang page: index */
:root {
      --primary: #0F2B48;
      --primary-blue: #1E56A0;
      --accent-teal: #00C9A7;
      --accent-cyan: #0081CF;
      --bg-dark: #0B131F;
      --bg-surface: #F6F8FA;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --border-color: rgba(226, 232, 240, 0.85);
    }
    body {
      color: var(--text-main);
      background-color: #FFFFFF;
      font-feature-settings: "cv02", "cv03", "cv04", "cv11";
      -webkit-font-smoothing: antialiased;
    }
    .custom-container {
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    @media (max-width: 640px) {
      .custom-container {
        padding-left: 16px;
        padding-right: 16px;
      }
    }
    .badge-pill {
      display: inline-flex;
      align-items: center;
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      font-size: 0.75rem;
      font-family: 'Inter', monospace;
      letter-spacing: 0.025em;
      font-weight: 600;
    }
    .card-transition {
      transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease;
    }
    .card-transition:hover {
      transform: translateY(-4px);
    }
    details summary::-webkit-details-marker {
      display: none;
    }
    .btn-gradient {
      background: linear-gradient(135deg, #0081CF 0%, #00C9A7 100%);
      transition: all 0.3s ease;
    }
    .btn-gradient:hover {
      filter: brightness(1.08);
      box-shadow: 0 8px 20px rgba(0, 201, 167, 0.35);
    }