/* roulang page: index */
:root {
      --primary: #0A2540;
      --secondary: #1B365D;
      --accent: #00A86B;
      --highlight: #0070F3;
      --bg-base: #F8F9FA;
      --text-main: #111827;
      --text-muted: #4B5563;
      --border-color: #E9ECEF;
      --dark-surface: #0F141C;
    }
    html {
      box-sizing: border-box;
      -webkit-font-smoothing: antialiased;
    }
    *, *:before, *:after {
      box-sizing: inherit;
    }
    body {
      background-color: #FFFFFF;
      color: var(--text-main);
      overflow-x: hidden;
    }
    .custom-scrollbar::-webkit-scrollbar {
      width: 6px;
      height: 6px;
    }
    .custom-scrollbar::-webkit-scrollbar-track {
      background: #F1F5F9;
    }
    .custom-scrollbar::-webkit-scrollbar-thumb {
      background: #CBD5E1;
      border-radius: 3px;
    }
    .hover-card {
      transition: all 250ms cubic-bezier(0.16, 1, 0.3, 1);
    }
    .hover-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 32px -8px rgba(10, 37, 64, 0.08);
    }
    .hero-bg {
      background: linear-gradient(135deg, rgba(10, 37, 64, 0.92) 0%, rgba(27, 54, 93, 0.88) 100%), url('/assets/images/b40aaa9e0e168471.jpg') center/cover no-repeat;
    }
    .dark-section {
      background-color: var(--dark-surface);
      background-image: radial-gradient(circle at 80% 20%, rgba(0, 112, 243, 0.08) 0%, transparent 60%);
    }
    details summary::-webkit-details-marker {
      display: none;
    }