/* roulang page: index */
:root {
            --bg-deep: #060B18;
            --cyan-glow: #00E5FF;
            --blue-glow: #0066FF;
            --neon-green: #00FF88;
            --glass-border: rgba(0, 229, 255, 0.2);
            --glass-bg: rgba(15, 23, 42, 0.65);
        }
        body {
            background-color: var(--bg-deep);
            color: #E2E8F0;
            overflow-x: hidden;
        }
        .glass-panel {
            background: var(--glass-bg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--glass-border);
            box-shadow: 0 8px 32px 0 rgba(0, 102, 255, 0.12);
        }
        .glass-panel:hover {
            border-color: rgba(0, 229, 255, 0.45);
            box-shadow: 0 12px 40px 0 rgba(0, 229, 255, 0.2);
        }
        .glow-btn-primary {
            background: linear-gradient(135deg, #00E5FF 0%, #0066FF 100%);
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.4);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .glow-btn-primary:hover {
            box-shadow: 0 0 30px rgba(0, 229, 255, 0.7);
            transform: translateY(-2px);
        }
        .glow-btn-secondary {
            background: rgba(15, 23, 42, 0.8);
            border: 1px solid rgba(0, 229, 255, 0.4);
            transition: all 0.3s ease;
        }
        .glow-btn-secondary:hover {
            border-color: #00E5FF;
            box-shadow: 0 0 15px rgba(0, 229, 255, 0.3);
            color: #00E5FF;
        }
        .text-glow {
            text-shadow: 0 0 15px rgba(0, 229, 255, 0.5);
        }
        .grid-pattern {
            background-image: linear-gradient(to right, rgba(0, 229, 255, 0.05) 1px, transparent 1px),
                              linear-gradient(to bottom, rgba(0, 229, 255, 0.05) 1px, transparent 1px);
            background-size: 40px 40px;
        }