/* roulang page: index */
:root {
            --brand-primary: #0E7490;
            --brand-gradient: linear-gradient(135deg, #0284C7 0%, #06B6D4 100%);
            --accent-orange: #F97316;
            --dark-surface: #0F172A;
            --light-surface: #F8FAFC;
            --border-card: 1.25rem;
            --shadow-float: 0 10px 25px -5px rgba(14, 116, 144, 0.08);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: #FFFFFF;
            color: #1E293B;
            overflow-x: hidden;
        }
        .gradient-btn {
            background: var(--brand-gradient);
            transition: all 0.25s ease;
        }
        .gradient-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px -3px rgba(6, 182, 212, 0.45);
        }
        .badge-pill {
            background: rgba(14, 116, 144, 0.08);
            border: 1px solid rgba(6, 182, 212, 0.35);
        }
        .card-custom {
            border-radius: var(--border-card);
            box-shadow: var(--shadow-float);
            transition: all 0.3s ease;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: 0 18px 30px -8px rgba(14, 116, 144, 0.15);
        }
        .glow-border {
            border: 1px solid rgba(6, 182, 212, 0.2);
            position: relative;
        }
        .glow-border::after {
            content: '';
            position: absolute;
            inset: -1px;
            border-radius: inherit;
            padding: 1px;
            background: linear-gradient(135deg, rgba(6, 182, 212, 0.4), transparent);
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
        }