.calendar {
    background: white;
    padding: 20px!important;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    width: 320px;
}
.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.calendar-header button {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
}
.calendar-header h2 {
    margin: 0;
    font-size: 20px;
}
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 5px;
    margin-top: 10px;
}
.day-name {
    font-weight: bold;
    text-align: center;
}
.day {
    height: 40px;
    text-align: center;
    line-height: 40px;
    border-radius: 4px;
    cursor: pointer;
}
.day.today {
    background: #2196F3;
    color: white;
}
.day.other-month {
    color: #ccc;
}
button.day{
    border: none;
    background-color: transparent;
}