/* roulang page: index */
:root {
            --primary: #1E40AF;
            --accent: #0284C7;
            --success: #10B981;
            --dark-bg: #0F172A;
            --light-bg: #F8FAFC;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
            color: #334155;
            background-color: #F8FAFC;
        }
        .hero-diagonal {
            clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
        }
        @media (max-width: 768px) {
            .hero-diagonal {
                clip-path: none;
            }
        }
        .data-grid-pattern {
            background-size: 32px 32px;
            background-image: 
                linear-gradient(to right, rgba(30, 64, 175, 0.05) 1px, transparent 1px),
                linear-gradient(to bottom, rgba(30, 64, 175, 0.05) 1px, transparent 1px);
        }
        .tab-btn.active {
            border-bottom: 2px solid #0284C7;
            color: #1E40AF;
            font-weight: 600;
        }