/* roulang page: index */
:root {
            --primary: #0A2540;
            --secondary: #00D4B2;
            --bg-light: #FAFAFC;
            --card-border: rgba(10, 37, 64, 0.08);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--bg-light);
            color: #2D3748;
        }
        .hero-pattern {
            background-image: linear-gradient(180deg, rgba(10, 37, 64, 0.88) 0%, rgba(13, 17, 23, 0.95) 100%), url('/assets/images/8b4aa90230d12a5d.webp');
            background-size: cover;
            background-position: center;
        }
        .tech-bg {
            background-image: linear-gradient(180deg, rgba(13, 17, 23, 0.96) 0%, rgba(10, 37, 64, 0.98) 100%), url('/assets/images/b7767651cc66e897.webp');
            background-size: cover;
            background-position: center;
        }
        .card-hover {
            transition: all 0.25s ease-in-out;
            border: 1px solid var(--card-border);
        }
        .card-hover:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 24px -10px rgba(10, 37, 64, 0.12);
            border-color: rgba(0, 212, 178, 0.4);
        }
        details summary::-webkit-details-marker {
            display: none;
        }