:root {
            --bg: #030712;
            --surface: rgba(255, 255, 255, 0.03);
            --border: rgba(255, 255, 255, 0.08);
            --brand: #25D366;
        }

        body {
            font-family: 'Space Grotesk', sans-serif;
            background-color: var(--bg);
            color: #eef5f1;
            background-image:
                radial-gradient(circle at 15% 50%, rgba(37,211,102,0.05), transparent 25vw),
                linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
            background-size: 100% 100%, 40px 40px, 40px 40px;
            background-position: 0 0, -1px -1px, -1px -1px;
            overflow-x: hidden;
        }

        .bento-card {
            background: var(--surface);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border);
            border-radius: 20px;
        }

        /* Indonesian flag line */
        .id-line {
            height: 3px;
            background: linear-gradient(90deg, #CE1126 0 50%, #FFFFFF 50% 100%);
            box-shadow: 0 0 10px rgba(255,255,255,0.1);
        }

        .back-link:hover {
            color: #25D366;
        }