/* roulang page: index */
:root {
            --primary: #00C853;
            --primary-hover: #0FA958;
            --accent: #00E5FF;
            --dark-navy: #0B1120;
            --slate-card: #1E293B;
            --bg-light: #F8FAFC;
            --text-main: #0F172A;
            --text-sub: #475569;
        }
        html { scroll-behavior: smooth; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
        .hero-bg {
            background-image: linear-gradient(rgba(11, 17, 32, 0.88), rgba(11, 17, 32, 0.95)), url('/assets/images/a3e1fab196016896.webp');
            background-size: cover;
            background-position: center;
        }
        .progress-ring-circle {
            transition: stroke-dashoffset 0.35s;
            transform: rotate(-90deg);
            transform-origin: 50% 50%;
        }
        .glass-card {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(226, 232, 240, 0.8);
        }
        .glass-dark {
            background: rgba(30, 41, 59, 0.7);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }