/* roulang page: index */
:root {
            --primary: #0F52BA;
            --primary-gradient: linear-gradient(135deg, #0F52BA 0%, #00A896 100%);
            --surface-bg: #F8FAFC;
            --text-main: #0F172A;
            --text-sub: #334155;
            --text-muted: #64748B;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
            background-color: var(--surface-bg);
            color: var(--text-main);
            overflow-x: hidden;
        }
        .bg-gradient-brand {
            background: linear-gradient(135deg, #0F52BA 0%, #00A896 100%);
        }
        .text-gradient-brand {
            background: linear-gradient(135deg, #0F52BA 0%, #00A896 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .glass-header {
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .card-transition {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-transition:hover {
            transform: translateY(-4px);
        }