:root {
            --primary-color: #1a365d;
            --secondary-color: #2d3748;
            --accent-color: #e53e3e;
            --light-bg: #f7fafc;
            --dark-text: #2d3748;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: var(--dark-text);
            line-height: 1.6;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .nav-link {
            font-weight: 500;
            transition: color 0.3s;
        }
        .nav-link:hover {
            color: var(--accent-color) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(26, 54, 93, 0.85), rgba(45, 55, 72, 0.9)), url('https://images.unsplash.com/photo-1451187580459-43490279c0fa?ixlib=rb-4.0.3&auto=format&fit=crop&w=2072&q=80') no-repeat center center/cover;
            color: white;
            padding: 150px 0;
        }
        .hero-section h1 {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 20px;
        }
        .section-title {
            color: var(--primary-color);
            font-weight: 700;
            margin-bottom: 30px;
            position: relative;
            display: inline-block;
        }
        .section-title::after {
            content: '';
            position: absolute;
            width: 60%;
            height: 4px;
            background: var(--accent-color);
            bottom: -10px;
            left: 0;
            border-radius: 2px;
        }
        .card {
            border: none;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s, box-shadow 0.3s;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        .card-img-top {
            height: 200px;
            object-fit: cover;
            border-top-left-radius: 10px;
            border-top-right-radius: 10px;
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 10px 25px;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            background-color: var(--accent-color);
            border-color: var(--accent-color);
            transform: scale(1.05);
        }
        .flink {
            display: inline-block;
            margin: 5px 10px;
            padding: 8px 15px;
            background: var(--light-bg);
            border-radius: 5px;
            color: var(--primary-color);
            text-decoration: none;
            transition: all 0.3s;
            border: 1px solid #ddd;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        footer {
            background-color: var(--secondary-color);
            color: white;
            padding: 40px 0 20px;
        }
        .social-icons a {
            color: white;
            margin: 0 10px;
            font-size: 1.2rem;
            transition: color 0.3s;
        }
        .social-icons a:hover {
            color: var(--accent-color);
        }
        .contact-info i {
            color: var(--accent-color);
            margin-right: 10px;
        }
        .sticky-top {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .hero-section {
                padding: 100px 0;
            }
        }