/* roulang page: index */
:root {
            --primary: #0f766e;
            --primary-dark: #042f2e;
            --accent: #10b981;
            --accent-warm: #f59e0b;
            --bg-light: #f8fafc;
            --text-main: #0f172a;
            --text-muted: #475569;
            --card-border: rgba(15, 118, 110, 0.12);
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
            background-color: var(--bg-light);
            color: var(--text-main);
            overflow-x: hidden;
        }
        .hero-countdown-ring {
            background: conic-gradient(#10b981 82%, #1e3a36 0%);
        }
        .card-custom {
            border: 1px solid var(--card-border);
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 30px -8px rgba(15, 118, 110, 0.12);
            border-color: rgba(16, 185, 129, 0.4);
        }