/* roulang page: index */
:root {
            --primary-emerald: #059669;
            --primary-teal: #10B981;
            --secondary-lime: #84CC16;
            --secondary-accent: #F97316;
            --bg-dark: #0F172A;
            --bg-surface: #1E293B;
            --bg-light: #F8FAFC;
            --card-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
            --card-hover-shadow: 0 12px 28px -4px rgba(5, 150, 105, 0.15);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            box-sizing: border-box;
            background-color: var(--bg-light);
            color: #334155;
            line-height: 1.6;
        }
        .hero-bg {
            background-image: linear-gradient(to right, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.85)), url('/assets/images/5803deda8921ca8d.webp');
            background-size: cover;
            background-position: center;
        }
        .immersion-bg {
            background-image: linear-gradient(to right, rgba(15, 23, 42, 0.96), rgba(30, 41, 59, 0.92)), url('/assets/images/46b26d1c35ccfee5.jpg');
            background-size: cover;
            background-position: center;
        }
        .glow-dot {
            box-shadow: 0 0 10px #84CC16;
        }
        .accordion-active {
            border-left: 3px solid var(--primary-emerald);
        }
        .accordion-active .acc-chevron {
            transform: rotate(180deg);
        }