/* roulang page: index */
:root {
            --color-primary: #00FF85;
            --color-bg-dark: #121212;
            --color-surface: #1E1E1E;
            --color-text-main: #FFFFFF;
            --color-text-dim: #B0B0B0;
            --color-accent: #6C63FF;
            --spacing-base: 80px;
            --border-radius: 12px;
            --shadow-card: 0 10px 30px rgba(0,0,0,0.3);
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { 
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            background-color: var(--color-bg-dark);
            color: var(--color-text-main);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* Container */
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        section { padding: var(--spacing-base) 0; }

        /* Typography */
        h1, h2, h3 { line-height: 1.2; margin-bottom: 20px; }
        h1 { font-size: 3rem; color: #fff; }
        .text-accent { color: var(--color-primary); }

        /* Buttons */
        .btn {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 8px;
            font-weight: bold;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
            text-align: center;
        }
        .btn-primary { background-color: var(--color-primary); color: #000; }
        .btn-primary:hover { box-shadow: 0 0 20px rgba(0, 255, 133, 0.4); transform: translateY(-2px); }
        .btn-outline { border: 2px solid var(--color-primary); color: var(--color-primary); }
        .btn-outline:hover { background: rgba(0, 255, 133, 0.1); }

        /* Header */
        header { position: sticky; top: 0; background: rgba(18, 18, 18, 0.9); backdrop-filter: blur(10px); z-index: 1000; padding: 20px 0; border-bottom: 1px solid #333; }
        .nav-wrapper { display: flex; justify-content: space-between; align-items: center; }
        .logo { font-size: 1.5rem; font-weight: 800; color: #fff; text-decoration: none; }
        .nav-links a { color: #fff; text-decoration: none; margin-left: 30px; font-weight: 500; }

        /* Hero */
        .hero { min-height: 80vh; display: flex; align-items: center; background: linear-gradient(rgba(18,18,18,0.8), rgba(18,18,18,0.8)), url('/assets/images/b3593174d0974ab9.png') no-repeat center/cover; }
        
        /* Stats */
        .stats-bar { background: var(--color-surface); padding: 40px 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
        .stat-item h3 { font-size: 2.5rem; color: var(--color-primary); margin: 0; }

        /* Bento Grid */
        .grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
        .card { background: var(--color-surface); padding: 30px; border-radius: var(--border-radius); border: 1px solid #333; transition: 0.3s; }
        .card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-card); }

        /* Footer */
        footer { background: #000; padding: 60px 0; border-top: 1px solid #333; }

        /* Responsive */
        @media (max-width: 768px) {
            .hero { text-align: center; }
            .stats-bar { grid-template-columns: repeat(2, 1fr); }
            h1 { font-size: 2rem; }
        }