.kart-to-kart-transfer {
    margin: 20px 0;
    padding: 20px;
    background: #f8f9fa;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.kart-to-kart-transfer h3 {
    margin-top: 0;
    margin-bottom: 15px;
    color: #333;
}

#kart-to-kart-form {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

#target-user-email {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

#kart-to-kart-form button {
    padding: 8px 16px;
    background: #0073aa;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s ease;
}

#kart-to-kart-form button:hover {
    background: #005177;
}

#kart-to-kart-form button:disabled {
    background: #ccc;
    cursor: not-allowed;
}

#kart-to-kart-message {
    display: none;
    padding: 10px;
    border-radius: 4px;
    margin-top: 10px;
}

#kart-to-kart-message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

#kart-to-kart-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}