/* roulang page: index */
:root {
            --bg-deep: #0F141C;
            --bg-card: #151D28;
            --accent-green: #00E5A3;
            --accent-purple: #7928CA;
            --accent-orange: #F5A623;
            --text-main: #F1F5F9;
            --text-dim: #94A3B8;
            --border: rgba(255, 255, 255, 0.08);
            --radius: 16px;
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; background-color: var(--bg-deep); color: var(--text-main); line-height: 1.75; }
        .container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
        
        /* Header */
        header { position: sticky; top: 0; z-index: 1000; background: rgba(15, 20, 28, 0.8); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); padding: 15px 0; }
        .nav-wrapper { display: flex; justify-content: space-between; align-items: center; }
        .logo { font-size: 20px; font-weight: 700; color: var(--text-main); text-decoration: none; }
        .nav-links { display: flex; gap: 24px; }
        .nav-links a { color: var(--text-dim); text-decoration: none; font-size: 14px; transition: 0.3s; }
        .nav-links a:hover { color: var(--accent-green); }
        .cta-nav { background: var(--accent-green); color: #000; padding: 8px 20px; border-radius: 8px; font-weight: 600; text-decoration: none; }

        /* Hero */
        .hero { padding: 80px 0; display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
        .hero-content h1 { font-size: 48px; line-height: 1.2; margin-bottom: 20px; }
        .hero-content p { color: var(--text-dim); font-size: 18px; margin-bottom: 30px; }
        .bento-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
        .card-glass { background: var(--bg-card); padding: 24px; border-radius: var(--radius); border: 1px solid var(--border); }

        /* Sections */
        section { padding: 80px 0; }
        h2 { font-size: 36px; margin-bottom: 48px; text-align: center; }
        .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .card { background: var(--bg-card); padding: 32px; border-radius: var(--radius); border: 1px solid var(--border); transition: 0.3s; }
        .card:hover { border-color: var(--accent-green); transform: translateY(-5px); }

        /* Components */
        .btn-primary { background: var(--accent-green); color: #000; padding: 12px 28px; border-radius: 8px; text-decoration: none; display: inline-block; font-weight: 600; }
        .stat-bar { background: var(--bg-card); padding: 40px; border-radius: var(--radius); display: flex; justify-content: space-around; }
        .stat-item { text-align: center; }
        .stat-val { font-size: 28px; font-weight: 700; color: var(--accent-green); }

        footer { padding: 60px 0; border-top: 1px solid var(--border); text-align: center; color: var(--text-dim); font-size: 14px; }

        @media (max-width: 768px) {
            .hero { grid-template-columns: 1fr; text-align: center; }
            .grid-3 { grid-template-columns: 1fr; }
            .stat-bar { flex-direction: column; gap: 20px; }
        }