:root {
            --primary-blue: #1a73e8;
            --ocean-deep: #0066cc;
            --coral-accent: #ff6b6b;
            --sea-green: #2ecc71;
            --sand-beige: #f5f5dc;
        }
        body {
            font-family: 'Segoe UI', system-ui, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #e6f7ff 0%, #ffffff 100%);
        }
        .marine-header {
            background: linear-gradient(135deg, var(--ocean-deep) 0%, var(--primary-blue) 100%);
            color: white;
            padding: 2rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .logo-main {
            font-size: 2.5rem;
            font-weight: 800;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
            color: white;
        }
        .nav-custom {
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 15px rgba(0,0,0,0.1);
        }
        .nav-custom .nav-link {
            color: var(--ocean-deep) !important;
            font-weight: 600;
            padding: 1rem 1.5rem;
            transition: all 0.3s ease;
        }
        .nav-custom .nav-link:hover {
            background: var(--ocean-deep);
            color: white !important;
            border-radius: 8px;
            transform: translateY(-2px);
        }
        .content-section {
            background: white;
            border-radius: 15px;
            padding: 2.5rem;
            margin: 2rem 0;
            box-shadow: 0 5px 25px rgba(0,0,0,0.08);
            border-left: 5px solid var(--sea-green);
        }
        .marine-image {
            border-radius: 12px;
            box-shadow: 0 8px 25px rgba(0,102,204,0.2);
            transition: transform 0.3s ease;
            margin: 1.5rem 0;
        }
        .marine-image:hover {
            transform: scale(1.02);
        }
        h1, h2, h3 {
            color: var(--ocean-deep);
            margin-bottom: 1.5rem;
        }
        h1 {
            border-bottom: 3px solid var(--coral-accent);
            padding-bottom: 0.5rem;
            font-weight: 800;
        }
        h2 {
            background: linear-gradient(90deg, var(--ocean-deep), transparent);
            color: white;
            padding: 1rem 1.5rem;
            border-radius: 8px;
            margin-top: 2.5rem;
        }
        .key-feature {
            background: #f8f9fa;
            border-left: 4px solid var(--sea-green);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight-text {
            background: linear-gradient(120deg, #a8e6cf 0%, #dcedc1 100%);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .marine-footer {
            background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
            color: white;
            padding: 3rem 0 2rem;
            margin-top: 4rem;
        }
        @media (max-width: 768px) {
            .content-section {
                padding: 1.5rem;
                margin: 1rem 0;
            }
            .logo-main {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
                padding: 0.8rem 1rem;
            }
        }
        .floating-emoji {
            font-size: 1.5rem;
            margin: 0 0.3rem;
            animation: float 3s ease-in-out infinite;
        }
        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-10px); }
        }
        .stats-box {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 1.5rem;
            border-radius: 12px;
            text-align: center;
            margin: 1rem 0;
        }