calendar.css

:root {
    --blue: #01C2F9;
}

.calendar {
    height: max-content;
    width: max-content;
    border-radius: 30px;
    padding: 1px;
    position: relative;
    overflow: hidden;
    transform: scale(0.75);
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 25px;
    font-weight: 600;
    padding: 5px;
}

.calendar-body {
    padding: 5px;
}

.calendar-week-day {
    height: 50px;
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    font-weight: 600;
}

.calendar-week-day div {
    display: grid;
    place-items: center;
}

.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}

.calendar-days div {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 5px;
    position: relative;
    cursor: pointer;
    animation: to-top 1s forwards;
}

.calendar-days div span {
    position: absolute;
}

.calendar-days div.curr-date,
.calendar-days div.curr-date:hover {
    background-color: var(--blue);
    border-radius: 50%;
}

.calendar-days div.curr-date span {
    display: none;
}

.year-picker {
    display: flex;
    align-items: center;
}

.month-list {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    padding: 20px;
    grid-template-columns: repeat(3, auto);
    gap: 10px;
    display: grid;
    transform: scale(1.5);
    visibility: hidden;
    pointer-events: none;
}

.month-list.show {
    transform: scale(1);
    visibility: visible;
    pointer-events: visible;
    transition: all 0.2s ease-in-out;
}