/* roulang page: index */
:root {
      --bg-dark: #060B14;
      --bg-card: rgba(17, 24, 39, 0.75);
      --border-glow: rgba(0, 242, 254, 0.2);
      --btn-gradient: linear-gradient(135deg, #1D63FF 0%, #00F2FE 100%);
    }
    body {
      background-color: var(--bg-dark);
      color: #F8FAFC;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      overflow-x: hidden;
    }
    .glass-panel {
      background: rgba(14, 26, 56, 0.65);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid rgba(255, 255, 255, 0.08);
      box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
      transition: all 0.3s ease;
    }
    .glass-panel:hover {
      border-color: rgba(0, 242, 254, 0.4);
      box-shadow: 0 0 25px rgba(0, 242, 254, 0.2);
      transform: translateY(-2px);
    }
    .btn-glow {
      background: var(--btn-gradient);
      box-shadow: 0 0 18px rgba(29, 99, 255, 0.55);
      transition: all 0.25s ease;
    }
    .btn-glow:hover {
      box-shadow: 0 0 28px rgba(0, 242, 254, 0.8);
      filter: brightness(1.1);
    }
    .btn-outline {
      border: 1px solid rgba(0, 242, 254, 0.4);
      background: rgba(13, 27, 62, 0.5);
      backdrop-filter: blur(8px);
      transition: all 0.25s ease;
    }
    .btn-outline:hover {
      background: rgba(29, 99, 255, 0.2);
      border-color: #00F2FE;
    }
    .pulse-dot {
      box-shadow: 0 0 0 0 rgba(5, 213, 136, 0.7);
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0% { box-shadow: 0 0 0 0 rgba(5, 213, 136, 0.7); }
      70% { box-shadow: 0 0 0 8px rgba(5, 213, 136, 0); }
      100% { box-shadow: 0 0 0 0 rgba(5, 213, 136, 0); }
    }