/* roulang page: index */
:root {
      --primary: #0F172A;
      --secondary: #0D9488;
      --accent: #D97706;
      --bg-light: #F8FAFC;
      --card-white: #FFFFFF;
      --text-main: #1E293B;
      --text-muted: #64748B;
    }
    body {
      color: var(--text-main);
      background-color: #FFFFFF;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    .card-hover-effect {
      transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
    }
    .card-hover-effect:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 30px -10px rgba(15, 23, 42, 0.1);
    }
    .active-nav-link {
      color: #0D9488;
      font-weight: 600;
      position: relative;
    }
    .active-nav-link::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 100%;
      height: 2px;
      background-color: #0D9488;
      border-radius: 9999px;
    }