/* roulang page: index */
:root {
            --primary: #0F766E;
            --primary-dark: #115E59;
            --accent: #10B981;
            --dark-navy: #0B132B;
            --text-main: #0F172A;
            --text-muted: #475569;
            --bg-light: #F8FAFC;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
            color: var(--text-main);
            background-color: #FFFFFF;
        }
        .coupon-mask {
            background: radial-gradient(circle at 0 50%, transparent 8px, #ffffff 8.5px),
                        radial-gradient(circle at 100% 50%, transparent 8px, #ffffff 8.5px);
            background-size: 100% 100%;
        }
        .coupon-mask-primary {
            background: radial-gradient(circle at 0 50%, transparent 8px, #0F766E 8.5px),
                        radial-gradient(circle at 100% 50%, transparent 8px, #0F766E 8.5px);
            background-size: 100% 100%;
        }