/* roulang page: index */
:root {
      --bg-dark: #0F1117;
      --bg-card: #181C26;
      --bg-card-hover: #1F2433;
      --brand-cyan: #00F2FE;
      --brand-blue: #4FACFE;
      --brand-purple: #7F00FF;
      --text-main: #FFFFFF;
      --text-muted: #94A3B8;
      --text-dim: #64748B;
      --border-dark: #2A3245;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      overflow-x: hidden;
    }
    .neon-cyan-gradient {
      background: linear-gradient(135deg, var(--brand-cyan) 0%, var(--brand-blue) 100%);
    }
    .neon-text-gradient {
      background: linear-gradient(135deg, #00F2FE 0%, #4FACFE 50%, #E100FF 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .card-hover-border {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      border: 1px solid var(--border-dark);
    }
    .card-hover-border:hover {
      border-color: rgba(0, 242, 254, 0.6);
      box-shadow: 0 0 25px rgba(0, 242, 254, 0.15);
      transform: translateY(-3px);
    }
    .custom-scrollbar::-webkit-scrollbar {
      height: 6px;
    }
    .custom-scrollbar::-webkit-scrollbar-thumb {
      background: #2A3245;
      border-radius: 3px;
    }