/* roulang page: index */
:root {
      --primary: #0D1117;
      --accent-green: #00E599;
      --accent-orange: #FF5E1E;
      --bg-surface: #F8FAFC;
      --border-light: rgba(15, 23, 42, 0.08);
      --border-dark: rgba(255, 255, 255, 0.12);
    }
    body {
      background-color: var(--bg-surface);
      color: #1e293b;
      -webkit-font-smoothing: antialiased;
    }
    .custom-shadow {
      box-shadow: 0 10px 30px -10px rgba(0,0,0,0.06), 0 4px 6px -2px rgba(0,0,0,0.04);
    }
    .hero-bg {
      background: linear-gradient(135deg, rgba(13,17,23,0.95) 0%, rgba(11,15,25,0.92) 100%), url('/assets/images/7472d8841362c0b7.jpg') center/cover no-repeat;
    }
    .dark-section-bg {
      background: linear-gradient(180deg, #0B0F19 0%, #111827 100%);
    }
    .interactive-card {
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .interactive-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 35px -10px rgba(0, 229, 153, 0.15);
      border-color: rgba(0, 229, 153, 0.4);
    }
    .text-glow {
      text-shadow: 0 0 16px rgba(0, 229, 153, 0.4);
    }
    .mono-num {
      font-feature-settings: "tnum";
      font-variant-numeric: tabular-nums;
    }