/* roulang page: index */
:root {
      --primary: #0F2A4A;
      --brand: #1E6091;
      --accent: #52B788;
      --bg-surface: #F8FAFC;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
    }
    body {
      color: var(--text-main);
      background-color: #FFFFFF;
      -webkit-font-smoothing: antialiased;
    }
    .custom-shadow {
      box-shadow: 0 4px 20px -2px rgba(15, 42, 74, 0.06), 0 2px 6px -1px rgba(15, 42, 74, 0.04);
    }
    .card-hover {
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .card-hover:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 32px -4px rgba(15, 42, 74, 0.1), 0 4px 12px -2px rgba(15, 42, 74, 0.05);
    }
    .hero-stack-bg {
      background: linear-gradient(135deg, #0F2A4A 0%, #16365C 60%, #1E6091 100%);
    }
    .tech-pattern {
      background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 0);
      background-size: 24px 24px;
    }