/* roulang page: index */
:root {
      --primary: #0F172A;
      --accent: #10B981;
      --cyan: #06B6D4;
      --bg-base: #F8FAFC;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      color: var(--text-main);
      background-color: var(--bg-base);
      overflow-x: hidden;
    }
    .custom-gradient-bg {
      background: radial-gradient(circle at 50% 20%, rgba(6, 182, 212, 0.15) 0%, rgba(15, 23, 42, 0.98) 70%), #0B0F19;
    }
    .card-glow {
      box-shadow: 0 4px 20px -2px rgba(6, 182, 212, 0.12);
    }
    .card-glow-green {
      box-shadow: 0 4px 24px -2px rgba(16, 185, 129, 0.25);
    }
    .pulse-dot {
      animation: pulseGlow 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
    }
    @keyframes pulseGlow {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: .4; transform: scale(1.15); }
    }