body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
}
.widget-container {
    padding: 20px;
}
h3 {
    margin-top: 0;
    color: #333;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
}
p {
    line-height: 1.6;
    color: #555;
}
button {
    background-color: #007bff;
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    width: 100%;
    transition: background-color 0.2s;
}
button:hover {
    background-color: #0056b3;
}
.form-group {
    margin-bottom: 15px;
}
.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #444;
}
.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box; /* Important */
}
.error-message {
    background-color: #f8d7da;
    color: #721c24;
    padding: 10px;
    border: 1px solid #f5c6cb;
    border-radius: 4px;
    margin-bottom: 15px;
}
.error-summary {
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    border-radius: 4px;
    padding: 0 15px;
    margin-bottom: 15px;
}
.error-summary ul {
    color: #721c24;
    padding-left: 20px;
}
.confirmation-details p {
    margin: 5px 0;
}