:root {
            --primary-blue: #0a2e6f;
            --secondary-blue: #1a4f8c;
            --accent-gold: #c9a347;
            --light-gray: #f8f9fa;
            --dark-gray: #343a40;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-blue) !important;
        }
        .nav-link {
            font-weight: 500;
            color: var(--dark-gray) !important;
            transition: color 0.3s ease;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-blue) !important;
            border-bottom: 2px solid var(--accent-gold);
        }
        .hero-section {
            background: linear-gradient(rgba(10, 46, 111, 0.85), rgba(10, 46, 111, 0.9)), url('https://images.unsplash.com/photo-1586773860418-dc22f8b874bc?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 150px 0;
            margin-bottom: 40px;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .section-title {
            color: var(--primary-blue);
            font-weight: 700;
            margin-bottom: 30px;
            padding-bottom: 15px;
            border-bottom: 3px solid var(--accent-gold);
            display: inline-block;
        }
        .card {
            border: none;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .card-icon {
            font-size: 2.5rem;
            color: var(--primary-blue);
            margin-bottom: 15px;
        }
        .btn-primary {
            background-color: var(--primary-blue);
            border-color: var(--primary-blue);
            padding: 10px 25px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-primary:hover {
            background-color: var(--secondary-blue);
            border-color: var(--secondary-blue);
            transform: scale(1.05);
        }
        .bg-light-custom {
            background-color: var(--light-gray) !important;
        }
        .department-card {
            border-left: 5px solid var(--accent-gold);
        }
        .doctor-card img {
            height: 250px;
            object-fit: cover;
            border-top-left-radius: 10px;
            border-top-right-radius: 10px;
        }
        footer {
            background-color: var(--primary-blue);
            color: white;
            padding-top: 50px;
        }
        footer a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        footer a:hover {
            color: var(--accent-gold);
        }
        .flink {
            background-color: rgba(255,255,255,0.1);
            padding: 8px 15px;
            border-radius: 5px;
            margin: 5px;
            display: inline-block;
            transition: all 0.3s ease;
        }
        .flink:hover {
            background-color: rgba(255,255,255,0.2);
            transform: translateY(-3px);
        }
        .contact-info i {
            color: var(--accent-gold);
            margin-right: 10px;
            width: 20px;
        }
        .sticky-top {
            top: 0;
            z-index: 1020;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .hero-section {
                padding: 100px 0;
            }
        }