:root {
            --primary: #007cba;
            --secondary: #222;
            --accent: #00a99d;
            --bg: #efefef;
            --text: #3a3a3a;
            --white: #ffffff;
        }

        body {
            font-family: -apple-system, system-ui, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
            background-color: var(--bg);
            color: var(--text);
            margin: 0;
            line-height: 1.6;
        }

        .grid-container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
        
        header { background: var(--white); padding: 40px 0; border-bottom: 3px solid var(--primary); }
        .main-title a { color: var(--secondary); text-decoration: none; font-size: 2.5rem; }

        nav { background: var(--secondary); padding: 10px 0; }
        nav ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; }
        nav li a { color: var(--white); text-decoration: none; padding: 10px 15px; display: block; }
        nav li a:hover { background: #3f3f3f; }

        .hero-banner {
            width: 100%;
            height: 300px;
            background: linear-gradient(135deg, #007cba, #00d084);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-align: center;
            margin-bottom: 2rem;
        }

        .hero-image-placeholder {
            background-image: url('/assets/1189.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .hero-image-placeholder::after {
            content: "";
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0,0,0,0.3);
        }

        .content-card {
            background: var(--white);
            padding: 2rem;
            margin-bottom: 2rem;
            border-radius: 4px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }

        footer { background: var(--secondary); color: var(--white); padding: 40px 0; text-align: center; }

        @media (max-width: 768px) {
            nav ul { flex-direction: column; }
            .grid-container { padding: 0 15px; }
        }