/* roulang page: index */
:root {
      --brand-emerald: #00DC82;
      --brand-emerald-dark: #059669;
      --brand-slate: #0F172A;
      --bg-dark: #0C0E12;
      --bg-light: #F8FAFC;
    }
    body {
      color: #334155;
      background-color: var(--bg-light);
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(0, 220, 130, 0.12) 0%, rgba(12, 14, 18, 0) 70%);
    }
    .dark-card-hover {
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .dark-card-hover:hover {
      transform: translateY(-4px);
      border-color: rgba(0, 220, 130, 0.4);
      box-shadow: 0 12px 30px -10px rgba(0, 220, 130, 0.15);
    }
    .light-card-hover {
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .light-card-hover:hover {
      transform: translateY(-4px);
      border-color: #00DC82;
      box-shadow: 0 14px 30px -8px rgba(15, 23, 42, 0.08);
    }
    .btn-glow:hover {
      box-shadow: 0 0 20px rgba(0, 220, 130, 0.45);
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out, padding 0.35s ease;
    }
    .accordion-open .accordion-content {
      max-height: 350px;
    }
    .accordion-open .accordion-icon {
      transform: rotate(180deg);
    }