/* roulang page: index */
:root {
      --brand-primary: #0284c7;
      --brand-dark: #0369a1;
      --bg-light: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #475569;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      color: var(--text-main);
      background-color: var(--bg-light);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }
    .hero-card-shadow {
      box-shadow: 0 20px 40px -15px rgba(2, 132, 199, 0.12), 0 0 25px 0 rgba(15, 23, 42, 0.04);
    }
    .card-hover-effect {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .card-hover-effect:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 32px -8px rgba(15, 23, 42, 0.12);
    }