body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #f8f9fa;
    color: #343a40;
}

.calendar-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 20px;
}

#calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 10px;
    max-width: 600px;
    margin-bottom: 20px;
}

.day {
    padding: 10px;
    background-color: #ffffff;
    border: 1px solid #dddddd;
    border-radius: 5px;
    position: relative;
}

.day.today {
    background-color: #007bff;
    color: #ffffff;
}

.event {
    background-color: #28a745;
    color: #ffffff;
    padding: 2px 4px;
    font-size: 12px;
    border-radius: 3px;
    margin-top: 5px;
    display: block;
}

.event-form {
    margin-top: 20px;
}

.event-form input, .event-form button {
    margin: 5px;
    padding: 10px;
    border: 1px solid #dddddd;
    border-radius: 5px;
    width: 200px;
}

.event-form button {
    background-color: #007bff;
    color: #ffffff;
    cursor: pointer;
}