/* roulang page: index */
:root {
            --primary: #0d9488;
            --primary-dark: #0f766e;
            --secondary: #f97316;
            --bg-light: #f8fafc;
            --text-main: #1e293b;
            --text-muted: #64748b;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            color: var(--text-main);
            background-color: #ffffff;
        }
        .hero-pattern {
            background: linear-gradient(135deg, rgba(19, 78, 74, 0.94) 0%, rgba(15, 118, 110, 0.88) 100%), url('/assets/images/61a7c52253443fdb.webp') center/cover no-repeat;
        }
        .dark-section-pattern {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.96) 0%, rgba(19, 78, 74, 0.92) 100%), url('/assets/images/8671ecb399cacd57.webp') center/cover no-repeat;
        }
        .cta-pattern {
            background: linear-gradient(135deg, rgba(13, 148, 136, 0.95) 0%, rgba(17, 94, 89, 0.95) 100%), url('/assets/images/bdb38f1de6df0087.webp') center/cover no-repeat;
        }