/* roulang page: index */
:root {
            --primary: #0F52BA;
            --primary-dark: #0A3B85;
            --accent: #00D26A;
            --midnight: #0B132B;
            --text-main: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border-color: #E2E8F0;
            --radius-md: 12px;
            --radius-lg: 16px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--text-body);
            background-color: #FFFFFF;
            line-height: 1.75;
        }

        .hero-bg {
            background-image: linear-gradient(rgba(11, 19, 43, 0.85), rgba(15, 82, 186, 0.9)), url('/assets/images/7400ec1562c6cc8a.jpg');
            background-size: cover;
            background-position: center;
        }

        .dark-showcase-bg {
            background-image: linear-gradient(rgba(11, 19, 43, 0.96), rgba(11, 19, 43, 0.98)), url('/assets/images/133afd888890ab6a.jpg');
            background-size: cover;
            background-position: center;
        }

        .card-shadow {
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05), 0 10px 15px -5px rgba(0, 0, 0, 0.04);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .card-shadow:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 25px -5px rgba(15, 82, 186, 0.12);
        }

        .badge-pulse {
            animation: pulse-green 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
        }

        @keyframes pulse-green {
            0%, 100% { opacity: 1; }
            50% { opacity: .5; }
        }