/* roulang page: index */
:root {
      --primary-dark: #0F172A;
      --deep-night: #0A0F1D;
      --accent-orange: #EA580C;
      --accent-hover: #C2410C;
      --bg-light: #F8FAFC;
      --border-color: #E2E8F0;
      --text-muted: #475569;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      color: #1E293B;
      background-color: #FFFFFF;
      overflow-x: hidden;
    }
    .custom-container {
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }
    .card-hover-fx {
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .card-hover-fx:hover {
      transform: translateY(-3px);
      box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.08);
      border-color: #CBD5E1;
    }
    details[open] summary svg {
      transform: rotate(180deg);
    }
    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(10, 15, 29, 0.98) 100%);
    }