.registration-container {
            min-height: 100vh;
            background: linear-gradient(135deg, var(--primary-blue) 0%, #34495E 100%);
            padding: 2rem 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .registration-card {
            max-width: 600px;
            width: 100%;
            margin: 0 auto;
            background: var(--white);
            border-radius: var(--radius-xl);
            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
            overflow: hidden;
            animation: slideUp 0.5s ease-out;
        }
        
        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .form-header {
            background: linear-gradient(135deg, var(--accent-orange), #D35400);
            color: var(--white);
            padding: 2rem;
            text-align: center;
            position: relative;
        }
        
        .form-header::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
        }
        
        .back-button {
            position: absolute;
            top: 1.5rem;
            left: 1.5rem;
            color: var(--white);
            opacity: 0.9;
            font-size: 0.9rem;
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .back-button:hover {
            opacity: 1;
            transform: translateX(-5px);
        }
        
        .form-header h1 {
            color: var(--white);
            margin: 1.5rem 0 0.5rem 0;
            font-size: clamp(1.5rem, 5vw, 2rem);
            font-weight: 700;
        }
        
        .form-header p {
            margin: 0;
            opacity: 0.95;
            font-size: clamp(0.9rem, 3vw, 1rem);
        }
        
        .form-body {
            padding: 2.5rem 2rem;
        }
        
        .form-body h2 {
            font-size: clamp(1.2rem, 4vw, 1.5rem);
            margin-bottom: 1.5rem;
            color: var(--primary-blue);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .form-body h2::before {
            content: '';
            width: 4px;
            height: 24px;
            background: var(--accent-orange);
            border-radius: 2px;
        }
        
        .form-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }
        
        .form-group {
            position: relative;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--primary-blue);
            font-size: 0.95rem;
        }
        
        .form-group input,
        .form-group select {
            width: 100%;
            padding: 0.875rem 1rem;
            border: 2px solid #e0e0e0;
            border-radius: var(--radius-md);
            font-size: 1rem;
            transition: all 0.3s ease;
            background: #fff;
        }
        
        .form-group input:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--accent-orange);
            box-shadow: 0 0 0 3px rgba(230, 126, 34, 0.1);
        }
        
        .form-group input::placeholder {
            color: #aaa;
        }
        
        .submit-btn {
            width: 100%;
            padding: 1rem;
            background: linear-gradient(135deg, var(--accent-orange), #D35400);
            color: white;
            border: none;
            border-radius: var(--radius-md);
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-top: 1rem;
            box-shadow: 0 4px 15px rgba(230, 126, 34, 0.3);
        }
        
        .submit-btn:hover:not(:disabled) {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(230, 126, 34, 0.4);
        }
        
        .submit-btn:disabled {
            opacity: 0.7;
            cursor: not-allowed;
        }
        
        .success-message {
            background: linear-gradient(135deg, #d4edda, #c3e6cb);
            color: #155724;
            padding: 1.25rem;
            border-radius: var(--radius-lg);
            border: none;
            margin-bottom: 1.5rem;
            display: none;
            animation: slideDown 0.3s ease-out;
            box-shadow: 0 2px 10px rgba(21, 87, 36, 0.1);
        }
        
        .success-message i {
            font-size: 1.2rem;
            margin-right: 0.5rem;
        }
        
        .error-message {
            background: linear-gradient(135deg, #f8d7da, #f5c6cb);
            color: #721c24;
            padding: 1.25rem;
            border-radius: var(--radius-lg);
            border: none;
            margin-bottom: 1.5rem;
            display: none;
            animation: slideDown 0.3s ease-out;
            box-shadow: 0 2px 10px rgba(114, 28, 36, 0.1);
        }
        
        .error-message i {
            font-size: 1.2rem;
            margin-right: 0.5rem;
        }
        
        @keyframes slideDown {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* Mobile Responsive Styles */
        @media (max-width: 768px) {
            .registration-container {
                padding: 1rem 0.75rem;
                align-items: flex-start;
            }
            
            .registration-card {
                margin: 0;
                border-radius: var(--radius-lg);
            }
            
            .form-header {
                padding: 1.5rem 1rem;
            }
            
            .back-button {
                top: 1rem;
                left: 1rem;
                font-size: 0.85rem;
            }
            
            .form-header h1 {
                margin-top: 2rem;
            }
            
            .form-body {
                padding: 1.5rem 1rem;
            }
            
            .form-grid {
                gap: 1.25rem;
            }
            
            .form-group input,
            .form-group select {
                padding: 0.75rem 0.875rem;
                font-size: 16px; /* Prevents zoom on iOS */
            }
            
            .submit-btn {
                padding: 0.875rem;
                font-size: 1rem;
            }
        }
        
        @media (max-width: 480px) {
            .registration-container {
                padding: 0.5rem;
            }
            
            .registration-card {
                border-radius: var(--radius-md);
            }
            
            .form-header {
                padding: 1.25rem 0.875rem;
            }
            
            .form-body {
                padding: 1.25rem 0.875rem;
            }
            
            .form-body h2 {
                font-size: 1.1rem;
            }
            
            .success-message,
            .error-message {
                padding: 1rem;
                font-size: 0.9rem;
            }
        }
        
        /* Touch-friendly improvements */
        @media (hover: none) and (pointer: coarse) {
            .form-group input,
            .form-group select,
            .submit-btn {
                min-height: 48px; /* Apple recommendation for touch targets */
            }
            
            .back-button {
                padding: 0.5rem;
                margin: -0.5rem;
            }
        }