/* roulang page: index */
:root {
      --primary: #4F46E5;
      --primary-hover: #4338CA;
      --secondary: #7C3AED;
      --accent: #06B6D4;
      --accent-green: #10B981;
      --dark-bg: #0F172A;
      --dark-surface: #1E293B;
      --light-bg: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --radius-xl: 1.5rem;
      --radius-2xl: 2rem;
      --shadow-brand: 0 12px 30px -5px rgba(79, 70, 229, 0.12);
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      color: #334155;
      background-color: #FFFFFF;
      overflow-x: hidden;
    }
    .hero-gold-gradient {
      background: radial-gradient(circle at 50% 20%, rgba(217, 119, 6, 0.15) 0%, rgba(15, 23, 42, 0.95) 70%), #0B0F19;
    }
    .badge-gold {
      background: linear-gradient(135deg, #F59E0B 0%, #D97706 50%, #B45309 100%);
      color: #FFFBEB;
      box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
    }
    .card-dark-glass {
      background: rgba(30, 41, 59, 0.7);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(245, 158, 11, 0.2);
    }
    .brand-gradient-text {
      background: linear-gradient(135deg, #4F46E5 0%, #7C3AED 50%, #06B6D4 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .gold-gradient-text {
      background: linear-gradient(135deg, #FDE68A 0%, #F59E0B 50%, #D97706 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .custom-scrollbar::-webkit-scrollbar {
      width: 6px;
      height: 6px;
    }
    .custom-scrollbar::-webkit-scrollbar-track {
      background: rgba(15, 23, 42, 0.5);
    }
    .custom-scrollbar::-webkit-scrollbar-thumb {
      background: rgba(79, 70, 229, 0.5);
      border-radius: 4px;
    }
    .feature-card {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-brand);
      border-color: #C7D2FE;
    }