/* roulang page: index */
:root {
            --primary: #6366f1;
            --primary-dark: #4338ca;
            --accent-cyan: #06b6d4;
            --bg-light: #f8fafc;
            --text-main: #0f172a;
            --text-body: #334155;
            --text-muted: #64748b;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-body);
            background-color: var(--bg-light);
            scroll-behavior: smooth;
        }
        .hero-bg {
            background-image: linear-gradient(rgba(15, 23, 42, 0.82), rgba(15, 23, 42, 0.9)), url('/assets/images/4c71618cdbf9a939.webp');
            background-size: cover;
            background-position: center;
        }
        .badge-chip {
            background: rgba(99, 102, 241, 0.1);
            border: 1px solid rgba(99, 102, 241, 0.25);
            color: #4f46e5;
        }
        .card-hover {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
        }
        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
        }
        .accordion-content.active {
            max-height: 250px;
        }