/* roulang page: index */
:root {
      --primary: #10b981;
      --primary-hover: #059669;
      --secondary: #0ea5e9;
      --dark-bg: #090d16;
      --dark-card: #131b2e;
      --dark-border: #1e293b;
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      background-color: var(--dark-bg);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }
    .custom-scroll::-webkit-scrollbar {
      height: 6px;
    }
    .custom-scroll::-webkit-scrollbar-thumb {
      background: #334155;
      border-radius: 4px;
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(16, 185, 129, 0.15), rgba(9, 13, 22, 0.95) 75%);
    }
    .card-hover {
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }
    .card-hover:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 24px -10px rgba(16, 185, 129, 0.25);
      border-color: rgba(16, 185, 129, 0.5);
    }
    .pulse-dot {
      animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
    }
    @keyframes pulse {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(1.15); }
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
    }
    .faq-answer.open {
      max-height: 200px;
    }