/* roulang page: index */
:root {
      --primary: #2563EB;
      --primary-cyan: #06B6D4;
      --bg-slate: #F8FAFC;
      --text-dark: #0F172A;
      --text-muted: #64748B;
      --card-border: rgba(226, 232, 240, 0.8);
      --card-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
    }
    body {
      background-color: var(--bg-slate);
      color: var(--text-dark);
      font-family: inherit;
    }
    .hero-gradient {
      background: radial-gradient(circle at top right, rgba(37, 99, 235, 0.08) 0%, transparent 60%),
                  radial-gradient(circle at bottom left, rgba(6, 182, 212, 0.08) 0%, transparent 60%),
                  #F8FAFC;
    }
    .glass-nav {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }
    .custom-card {
      background: #FFFFFF;
      border: 1px solid var(--card-border);
      box-shadow: var(--card-shadow);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .custom-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 30px -10px rgba(37, 99, 235, 0.12);
      border-color: rgba(37, 99, 235, 0.3);
    }
    .badge-gradient {
      background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
      color: #2563EB;
      border: 1px solid rgba(37, 99, 235, 0.2);
    }
    .btn-gradient {
      background: linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
      transition: all 0.3s ease;
    }
    .btn-gradient:hover {
      opacity: 0.95;
      box-shadow: 0 8px 20px -4px rgba(37, 99, 235, 0.4);
      transform: translateY(-1px);
    }
    .clip-slant {
      clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
    }