/* roulang page: index */
:root {
        --primary: #6366F1;
        --secondary: #06B6D4;
        --bg-dark: #0B0F17;
        --card-dark: #111827;
        --text-main: #F8FAFC;
        --text-muted: #94A3B8;
        --border-color: rgba(255, 255, 255, 0.08);
      }
      html {
        scroll-behavior: smooth;
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      }
      body {
        background-color: #0B0F17;
        color: #F8FAFC;
        overflow-x: hidden;
      }
      .transition-custom {
        transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      }
      .glass-card {
        background: rgba(17, 24, 39, 0.85);
        backdrop-filter: blur(12px);
        border: 1px solid var(--border-color);
      }
      .glass-card:hover {
        border-color: rgba(99, 102, 241, 0.4);
      }
      .badge-glow {
        box-shadow: 0 0 15px rgba(6, 182, 212, 0.25);
      }
      .faq-content {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s cubic-bezier(0.16, 1, 0.3, 1);
      }
      .faq-item.active .faq-content {
        max-height: 200px;
      }
      .faq-item.active .faq-icon {
        transform: rotate(180deg);
      }