#form-message {
    margin-top: 10px;
    padding: 10px;
    border-radius: 4px;
    min-height: 20px;
    font-weight: 500;
    transition: all 0.3s ease;
}

#form-message:empty {
    display: none;
}

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

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

#form-message:not(.success):not(.error) {
    background-color: #e2e3e5;
    color: #383d41;
    border: 1px solid #d6d8db;
}

/* Disable button styling */
#subscription-form button[disabled] {
    opacity: 0.65;
    cursor: not-allowed;
}