/* roulang page: index */
:root {
            --brand-primary: #0F4C81;
            --brand-secondary: #0ea5e9;
            --brand-dark: #0B132B;
            --text-main: #0F172A;
            --text-muted: #475569;
            --border-light: #E2E8F0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-main);
            background-color: #F8FAFC;
        }
        .hero-bg {
            background: linear-gradient(135deg, rgba(15, 76, 129, 0.94) 0%, rgba(11, 19, 43, 0.96) 100%), url('/assets/images/38ecaad205c251f6.jpg') center/cover no-repeat;
        }
        .deep-arch-bg {
            background: radial-gradient(circle at 20% 30%, rgba(14, 165, 233, 0.15) 0%, rgba(11, 19, 43, 1) 70%), url('/assets/images/dc60f7809ed2fb88.webp') center/cover no-repeat;
        }
        .card-custom {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            border: 1px solid rgba(226, 232, 240, 0.8);
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 32px -8px rgba(15, 76, 129, 0.12);
            border-color: rgba(14, 165, 233, 0.4);
        }
        details summary::-webkit-details-marker {
            display: none;
        }
        .coupon-ticket {
            background: radial-gradient(circle at 0 50%, transparent 8px, #ffffff 9px), radial-gradient(circle at 100% 50%, transparent 8px, #ffffff 9px);
            background-size: 100% 100%;
        }