/* roulang page: index */
:root {
            --primary: #0F172A;
            --accent: #0EA5E9;
            --emerald: #10B981;
            --bg-light: #F8FAFC;
        }
        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }
        .hero-pattern {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(2, 6, 23, 0.96) 100%), url('/assets/images/d9ab08652613c83d.webp') center/cover no-repeat;
        }
        .tech-pattern {
            background: linear-gradient(180deg, rgba(2, 6, 23, 0.98) 0%, rgba(15, 23, 42, 0.95) 100%), url('/assets/images/5e75447eb2f29129.webp') center/cover no-repeat;
        }
        details summary::-webkit-details-marker {
            display: none;
        }