/* roulang page: index */
:root {
      --primary: #1E40AF;
      --accent: #3B82F6;
      --highlight: #06B6D4;
      --bg-light: #F8FAFC;
      --bg-dark: #0F172A;
      --text-main: #334155;
      --text-dark: #0F172A;
      --text-muted: #64748B;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
    }
    .hero-banner-bg {
      background-image: linear-gradient(to right, rgba(15, 23, 42, 0.94), rgba(30, 64, 175, 0.82)), url('/assets/images/1756c78bb0f9f7f1.webp');
      background-size: cover;
      background-position: center;
    }
    .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 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    }