.calendar-generator-form {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background: #f9f9f9;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.calendar-generator-form h2 {
    margin-top: 0;
    color: #333;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group input[type="number"],
.form-group select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.checkbox-group label {
    display: inline-block;
    font-weight: normal;
    margin-left: 5px;
}

.button {
    background: #0073aa;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

.button:hover {
    background: #005177;
}

#calendar-generator-message {
    margin-top: 15px;
    padding: 10px;
    border-radius: 4px;
}

#calendar-generator-message.error {
    background: #ffebee;
    color: #c62828;
}

#calendar-generator-message.success {
    background: #e8f5e9;
    color: #2e7d32;
}