/* roulang page: index */
:root {
            --brand-primary: #0F4C5C;
            --brand-accent: #00B4D8;
            --brand-emerald: #10B981;
            --bg-base: #F8FAFC;
            --text-heading: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border-light: #E2E8F0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            background-color: var(--bg-base);
            color: var(--text-body);
            overflow-x: hidden;
        }

        .brand-gradient-text {
            background: linear-gradient(135deg, #0F4C5C 0%, #00B4D8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .brand-gradient-bg {
            background: linear-gradient(135deg, #0F4C5C 0%, #007A87 100%);
        }

        .brand-cta-gradient {
            background: linear-gradient(135deg, #0F4C5C 0%, #00B4D8 100%);
        }

        .card-custom {
            border-radius: 1.25rem;
            background-color: #ffffff;
            box-shadow: 0 10px 30px -5px rgba(15, 76, 92, 0.06);
            border: 1px solid var(--border-light);
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .card-custom:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 180, 216, 0.4);
            box-shadow: 0 18px 36px -5px rgba(15, 76, 92, 0.12);
        }

        .data-badge {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            line-height: 1rem;
            border: 1px solid rgba(0, 180, 216, 0.25);
            background: rgba(0, 180, 216, 0.08);
            color: #0F4C5C;
        }

        .hero-cover {
            background: linear-gradient(rgba(15, 23, 42, 0.85), rgba(15, 76, 92, 0.9)), url('/assets/images/d894ed7238b2784f.webp') center/cover no-repeat;
        }