/* roulang page: index */
:root {
      --bg-base: #070b14;
      --card-bg: rgba(15, 23, 42, 0.7);
      --border-glow: rgba(0, 242, 254, 0.2);
    }
    body {
      background-color: var(--bg-base);
      color: #f8fafc;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      overflow-x: hidden;
    }
    .glass-card {
      background: var(--card-bg);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid rgba(255, 255, 255, 0.08);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glass-card:hover {
      border-color: rgba(0, 242, 254, 0.4);
      box-shadow: 0 10px 30px -10px rgba(0, 210, 255, 0.25);
      transform: translateY(-2px);
    }
    .glow-border {
      position: relative;
    }
    .glow-border::after {
      content: '';
      position: absolute;
      inset: -1px;
      background: linear-gradient(90deg, #00f2fe, #00d2ff, #7928ca);
      border-radius: inherit;
      z-index: -1;
      opacity: 0.35;
      filter: blur(8px);
      transition: opacity 0.3s;
    }
    .glow-border:hover::after {
      opacity: 0.75;
    }