/* roulang page: index */
:root {
      --bg-dark: #050b14;
      --card-bg: rgba(15, 23, 42, 0.7);
      --border-cyan: rgba(6, 182, 212, 0.25);
      --glow-cyan: rgba(6, 182, 212, 0.45);
    }
    body {
      background-color: var(--bg-dark);
      color: #94a3b8;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }
    .glass-panel {
      background: var(--card-bg);
      backdrop-filter: blur(12px);
      border: 1px solid var(--border-cyan);
      box-shadow: 0 20px 40px -15px rgba(2, 6, 23, 0.7);
    }
    .glass-card {
      background: rgba(15, 23, 42, 0.6);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(6, 182, 212, 0.15);
      transition: all 0.3s ease;
    }
    .glass-card:hover {
      border-color: rgba(56, 189, 248, 0.5);
      transform: translateY(-4px);
      box-shadow: 0 10px 25px -5px rgba(6, 182, 212, 0.2);
    }
    .btn-glow {
      background: linear-gradient(135deg, #06b6d4, #2563eb);
      box-shadow: 0 0 20px rgba(6, 182, 212, 0.35);
      transition: all 0.3s ease;
    }
    .btn-glow:hover {
      box-shadow: 0 0 30px rgba(6, 182, 212, 0.65);
      transform: translateY(-1px);
    }
    .text-glow {
      text-shadow: 0 0 12px rgba(56, 189, 248, 0.35);
    }