:root {
            --primary-color: #ff6b35;
            --secondary-color: #f7931e;
            --accent-color: #ffd166;
            --dark-color: #073b4c;
            --light-color: #f8f9fa;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
        }
        .logo-text {
            font-family: 'Georgia', serif;
            font-weight: bold;
            font-size: 2.2rem;
            color: var(--primary-color);
            text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
        }
        .nav-custom {
            background: linear-gradient(90deg, var(--dark-color) 0%, #0a4c63 100%);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .nav-link {
            color: white !important;
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 0.5rem 1rem !important;
        }
        .nav-link:hover {
            color: var(--accent-color) !important;
            transform: translateY(-2px);
        }
        .hero-section {
            background: linear-gradient(rgba(7, 59, 76, 0.8), rgba(7, 59, 76, 0.9)), url('https://via.placeholder.com/1600x900') center/cover no-repeat;
            color: white;
            padding: 5rem 0;
            margin-bottom: 3rem;
            border-radius: 0 0 20px 20px;
        }
        .section-title {
            color: var(--dark-color);
            border-left: 5px solid var(--primary-color);
            padding-left: 15px;
            margin: 2.5rem 0 1.5rem;
            font-weight: 700;
        }
        .content-card {
            background: white;
            border-radius: 12px;
            box-shadow: 0 6px 15px rgba(0,0,0,0.08);
            padding: 2rem;
            margin-bottom: 2rem;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: none;
        }
        .content-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 20px rgba(0,0,0,0.15);
        }
        .highlight-text {
            background: linear-gradient(120deg, var(--accent-color) 0%, var(--accent-color) 100%);
            background-repeat: no-repeat;
            background-size: 100% 0.4em;
            background-position: 0 88%;
            font-weight: 600;
            padding: 0.1em 0;
        }
        .feature-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .image-caption {
            font-style: italic;
            color: #6c757d;
            text-align: center;
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .fact-box {
            background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
            border-left: 4px solid var(--primary-color);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        footer {
            background: var(--dark-color);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--primary-color);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            box-shadow: 0 4px 10px rgba(0,0,0,0.2);
            transition: all 0.3s ease;
            z-index: 1000;
        }
        .back-to-top:hover {
            background: var(--secondary-color);
            transform: translateY(-3px);
            color: white;
        }
        @media (max-width: 768px) {
            .logo-text {
                font-size: 1.8rem;
            }
            .hero-section {
                padding: 3rem 0;
            }
            .content-card {
                padding: 1.5rem;
            }
        }