/* roulang page: index */
:root {
            --primary: #0D6E6E;
            --deepTech: #082032;
            --accent: #38E54D;
            --labBg: #F7F9FA;
        }
        html {
            scroll-behavior: smooth;
        }
        .text-title {
            color: #0B1B2B;
        }
        .text-body {
            color: #4A5568;
        }
        .text-sub {
            color: #718096;
        }
        .glass-nav {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
        }
        .shadow-soft {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
        }
        .shadow-hover:hover {
            box-shadow: 0 12px 32px rgba(13, 110, 110, 0.12);
        }
        details summary::-webkit-details-marker {
            display: none;
        }