:root {
    --calendar-border: #dee2e6;
    --calendar-muted: #6c757d;
    --calendar-today: #0d6efd;
    --calendar-weekend: #f8f9fa;
}

body {
    min-height: 100vh;
    background: #f4f6f9;
}

.calendar-shell {
    max-width: 1180px;
    margin-inline: auto;
}

.calendar-toolbar {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 1rem;
}

.calendar-toolbar__navigation {
    display: flex;
    align-items: center;
    gap: .5rem;
}

.calendar-toolbar__title {
    margin: 0;
    font-size: clamp(1.25rem, 3vw, 1.8rem);
    font-weight: 700;
    text-align: center;
}

.calendar-toolbar__spacer {
    min-width: 1px;
}

.calendar-arrow {
    display: inline-grid;
    width: 2.5rem;
    height: 2.5rem;
    place-items: center;
    padding: 0;
    font-size: 1.45rem;
    line-height: 1;
}

.calendar-scroll {
    overflow-x: auto;
    overscroll-behavior-inline: contain;
}

.calendar-table {
    width: 100%;
    min-width: 700px;
    table-layout: fixed;
    margin: 0;
    border-collapse: separate;
    border-spacing: 0;
}

.calendar-table th,
.calendar-table td {
    border-right: 1px solid var(--calendar-border);
    border-bottom: 1px solid var(--calendar-border);
}

.calendar-table th:first-child,
.calendar-table td:first-child {
    border-left: 1px solid var(--calendar-border);
}

.calendar-table thead th {
    padding: .8rem .5rem;
    background: #fff;
    color: var(--calendar-muted);
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .04em;
    text-align: center;
    text-transform: uppercase;
    border-top: 1px solid var(--calendar-border);
}

.calendar-table thead th:first-child {
    border-top-left-radius: .5rem;
}

.calendar-table thead th:last-child {
    border-top-right-radius: .5rem;
}

.calendar-day {
    position: relative;
    height: 128px;
    padding: .65rem;
    vertical-align: top;
    background: #fff;
}

.calendar-day--weekend {
    background: var(--calendar-weekend);
}

.calendar-day--empty {
    background: #f1f3f5;
}

.calendar-day__number {
    display: inline-grid;
    width: 2rem;
    height: 2rem;
    place-items: center;
    border-radius: 50%;
    font-weight: 600;
}

.calendar-day--today {
    box-shadow: inset 0 0 0 2px rgba(13, 110, 253, .22);
}

.calendar-day--today .calendar-day__number {
    color: #fff;
    background: var(--calendar-today);
}

.weekday-short {
    display: none;
}

@media (max-width: 767.98px) {
    .calendar-card {
        border-radius: 0;
        border-inline: 0;
    }

    .calendar-card .card-body {
        padding-inline: .75rem;
    }

    .calendar-toolbar {
        grid-template-columns: 1fr;
    }

    .calendar-toolbar__title {
        grid-row: 1;
    }

    .calendar-toolbar__navigation {
        grid-row: 2;
        justify-content: center;
    }

    .calendar-toolbar__spacer {
        display: none;
    }

    .calendar-table {
        min-width: 560px;
    }

    .calendar-day {
        height: 92px;
        padding: .4rem;
    }

    .weekday-full {
        display: none;
    }

    .weekday-short {
        display: inline;
    }
}