/* roulang page: index */
:root {
            --primary-teal: #0e7490;
            --primary-dark: #0f172a;
            --accent-indigo: #4f46e5;
            --surface-light: #f8fafc;
            --border-soft: #e2e8f0;
        }
        html { scroll-behavior: smooth; }
        body { font-family: var(--font-sans); color: #1e293b; background-color: #ffffff; }
        .hero-pattern {
            background-color: #0b1329;
            background-image: radial-gradient(rgba(14, 116, 144, 0.25) 1px, transparent 1px);
            background-size: 24px 24px;
        }
        .code-block {
            background: #020617;
            border: 1px solid #1e293b;
            font-family: 'SFMono-Regular', Consolas, monospace;
        }