/* roulang page: index */
:root {
            --primary: #1A56DB;
            --primary-dark: #0E3A99;
            --accent-cyan: #06B6D4;
            --accent-emerald: #10B981;
            --bg-page: #F8FAFC;
            --text-main: #1F2937;
            --text-muted: #64748B;
            --border-color: #E2E8F0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-page);
            color: var(--text-main);
            overflow-x: hidden;
        }

        .hero-gradient {
            background: linear-gradient(135deg, rgba(11, 15, 25, 0.92) 0%, rgba(14, 58, 153, 0.85) 100%);
        }

        .card-shadow {
            box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .card-shadow:hover {
            box-shadow: 0 20px 30px -10px rgba(26, 86, 219, 0.15), 0 10px 15px -5px rgba(26, 86, 219, 0.08);
            transform: translateY(-4px);
        }

        .glass-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .badge-status {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease-out;
        }

        .accordion-content.open {
            max-height: 500px;
        }