/* roulang page: index */
:root {
            --brand-gradient: linear-gradient(135deg, #0EA5E9 0%, #10B981 100%);
            --brand-dark: #090D16;
            --brand-text: #0F172A;
            --brand-bg: #F8FAFC;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
            background-color: var(--brand-bg);
            color: var(--brand-text);
            overflow-x: hidden;
        }
        .bg-brand-gradient {
            background: linear-gradient(135deg, #0EA5E9 0%, #10B981 100%);
        }
        .text-brand-gradient {
            background: linear-gradient(135deg, #0EA5E9 0%, #10B981 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .circuit-pattern {
            background-image: radial-gradient(rgba(14, 165, 233, 0.15) 1px, transparent 1px);
            background-size: 28px 28px;
        }
        .card-glow {
            box-shadow: 0 10px 30px -10px rgba(14, 165, 233, 0.15);
        }
        .card-glow:hover {
            box-shadow: 0 20px 40px -12px rgba(16, 185, 129, 0.25);
        }