/* roulang page: index */
:root {
      --cyan-glow: rgba(0, 229, 255, 0.35);
      --violet-glow: rgba(124, 58, 237, 0.25);
    }
    body {
      background-color: #070B19;
      color: #F8FAFC;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      overflow-x: hidden;
    }
    .glass-card {
      background: rgba(15, 23, 42, 0.65);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 1rem;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glass-card:hover {
      border-color: rgba(0, 229, 255, 0.4);
      box-shadow: 0 10px 30px -10px rgba(0, 229, 255, 0.2);
      transform: translateY(-2px);
    }
    .glow-btn {
      box-shadow: 0 0 25px var(--cyan-glow);
      transition: all 0.3s ease;
    }
    .glow-btn:hover {
      box-shadow: 0 0 35px rgba(0, 229, 255, 0.6);
      transform: translateY(-2px);
    }
    .radial-bg {
      background: radial-gradient(circle at 50% 0%, #1e1b4b 0%, #070B19 75%);
    }