/* In styles.css */
input:invalid, textarea:invalid {
    border-color: #dc3545;
}
.error-message {
    color: #dc3545;
    font-size: 0.875em;
}
.full-width-content {
    width: 100%;
    max-width: none;
    padding-left: 15px;
    padding-right: 15px;
}