:root {
            --ocean-blue: #0077be;
            --ocean-dark: #004d7a;
            --sea-foam: #7dd3c0;
        }
        .bg-ocean-blue { background-color: var(--ocean-blue); }
        .bg-ocean-dark { background-color: var(--ocean-dark); }
        .bg-sea-foam { background-color: var(--sea-foam); }
        .text-ocean-blue { color: var(--ocean-blue); }
        .text-ocean-dark { color: var(--ocean-dark); }
        
        .hero-section { 
            background: linear-gradient(135deg, var(--ocean-blue), var(--ocean-dark)); 
            position: relative;
            z-index: 0;
            overflow: hidden;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 2rem 0;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-size: 100% 100px;
            z-index: -1;
            pointer-events: none;
        }
        
        .vessel-card {
            background: white;
            border-radius: 20px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.1);
            overflow: hidden;
        }
        
        .vessel-form {
            padding: 3rem;
        }
        
        .form-control {
            border: 2px solid #e9ecef;
            border-radius: 12px;
            padding: 0.75rem 1rem;
            font-size: 1rem;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        
        .form-control:focus {
            border-color: var(--ocean-blue);
            box-shadow: 0 0 0 0.2rem rgba(0, 119, 190, 0.25);
        }
        
        .form-select {
            border: 2px solid #e9ecef;
            border-radius: 12px;
            padding: 0.75rem 1rem;
            font-size: 1rem;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        
        .form-select:focus {
            border-color: var(--ocean-blue);
            box-shadow: 0 0 0 0.2rem rgba(0, 119, 190, 0.25);
        }
        
        .btn-vessel {
            background: linear-gradient(135deg, var(--ocean-blue), var(--ocean-dark));
            border: none;
            border-radius: 12px;
            padding: 0.75rem 2rem;
            font-weight: 600;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .btn-vessel:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0, 119, 190, 0.3);
            background: linear-gradient(135deg, var(--ocean-dark), var(--ocean-blue));
        }
        
        .btn-secondary-custom {
            border: 2px solid var(--ocean-blue);
            color: var(--ocean-blue);
            border-radius: 12px;
            padding: 0.75rem 2rem;
            font-weight: 600;
            background: transparent;
            transition: all 0.3s ease;
        }
        
        .btn-secondary-custom:hover {
            background: var(--ocean-blue);
            color: white;
            transform: translateY(-2px);
        }
        
        .readonly-field {
            background-color: #f8f9fa;
            color: #6c757d;
        }
        
        .template-toggle {
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 1000;
            background: white;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            padding: 10px;
        }
        
        .template-toggle button {
            border-radius: 8px;
            border: none;
            padding: 8px 16px;
            margin: 0 5px;
            transition: all 0.3s ease;
        }
        
        .template-toggle button.active {
            background: var(--ocean-blue);
            color: white;
        }
        
        .template-toggle button:not(.active) {
            background: #f8f9fa;
            color: #6c757d;
        }
        
        .template {
            display: none;
        }
        
        .template.active {
            display: block;
        }