/* roulang page: index */
:root {
            --bg-main: #060B18;
            --cyan-glow: rgba(0, 242, 254, 0.35);
            --blue-glow: rgba(79, 172, 254, 0.25);
        }
        body {
            background-color: #060B18;
            color: #E2E8F0;
            background-image: 
                radial-gradient(at 0% 0%, rgba(0, 242, 254, 0.08) 0px, transparent 50%),
                radial-gradient(at 100% 100%, rgba(79, 172, 254, 0.08) 0px, transparent 50%),
                radial-gradient(at 50% 50%, rgba(16, 185, 129, 0.04) 0px, transparent 60%);
            background-attachment: fixed;
        }
        .glass-card {
            background: rgba(15, 23, 42, 0.65);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(0, 242, 254, 0.15);
            box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
        }
        .glass-card:hover {
            border-color: rgba(0, 242, 254, 0.4);
            box-shadow: 0 12px 40px 0 rgba(0, 242, 254, 0.12);
        }
        .btn-glow {
            background: linear-gradient(135deg, #00F2FE 0%, #4FACFE 100%);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .btn-glow:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 24px rgba(0, 242, 254, 0.5);
        }
        .text-gradient {
            background: linear-gradient(135deg, #FFFFFF 20%, #00F2FE 80%, #4FACFE 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .progress-ring-circle {
            transition: stroke-dashoffset 0.35s;
            transform: rotate(-90deg);
            transform-origin: 50% 50%;
        }