/* roulang page: index */
:root {
            --primary: #1e40af;
            --primary-hover: #1d4ed8;
            --accent: #0ea5e9;
            --accent-warm: #f59e0b;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --text-main: #0f172a;
            --text-muted: #475569;
            --text-sub: #64748b;
            --border-light: #e2e8f0;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
            --shadow-hover: 0 20px 25px -5px rgba(30, 64, 175, 0.08), 0 8px 10px -6px rgba(30, 64, 175, 0.04);
        }

        body {
            font-family: var(--font-sans, system-ui, -apple-system, sans-serif);
            color: var(--text-main);
            background-color: #ffffff;
            -webkit-font-smoothing: antialiased;
        }

        .hero-mesh {
            background-color: #ffffff;
            background-image: radial-gradient(#e2e8f0 1px, transparent 1px), radial-gradient(#e2e8f0 1px, #ffffff 1px);
            background-size: 40px 40px;
            background-position: 0 0, 20px 20px;
        }

        .card-custom {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            border: 1px solid var(--border-light);
            background: #ffffff;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: #cbd5e1;
        }

        details > summary::-webkit-details-marker {
            display: none;
        }

        .glass-header {
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .stat-glow {
            background: linear-gradient(135deg, rgba(30, 64, 175, 0.04) 0%, rgba(14, 165, 233, 0.08) 100%);
        }