body {
    background-color: #f8f9fa;
    font-family: 'Arial', sans-serif;
}

header {
    background-color: #ff4d4d;
    padding: 10px;
    border-radius: 10px;
}

#calendar {
    background-color: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
}

.calendar-table {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 10px;
}

.day {
    background-color: #f2f2f2;
    padding: 10px;
    border-radius: 5px;
    text-align: center;
}

#menu {
    margin-top: 20px;
}

.menu-item {
    border-radius: 10px;
    width: 80px;
    height: 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

footer {
    margin-top: 20px;
}

button {
    margin: 5px;
    width: 100px;
}