:root {
    --calendar-green: #5d6e2a;
    --calendar-red: #b51b1a;
    --calendar-cream: #f5f2ef;
    --calendar-gold: #c7a25a;
    --calendar-text: #252525;
    --calendar-muted: #747474;
    --calendar-border: #dedbd5;
    --calendar-white: #ffffff;
    --calendar-shadow: 0 12px 35px rgba(34, 34, 34, 0.08);
}

* {
    box-sizing: border-box;
}

html {
    color-scheme: light;
}

body {
    margin: 0;
    color: var(--calendar-text);
    background: var(--calendar-cream);
    font-family: Arial, Helvetica, sans-serif;
}

button,
input,
select,
textarea {
    font: inherit;
}

.page {
    width: min(1500px, calc(100% - 32px));
    margin: 0 auto;
    padding: 48px 0;
}

.availability-calendar {
    padding: clamp(20px, 3vw, 42px);
    background: var(--calendar-white);
    border: 1px solid var(--calendar-border);
    border-radius: 18px;
    box-shadow: var(--calendar-shadow);
}

.calendar-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 28px;
}

.calendar-kicker {
    margin: 0 0 5px;
    color: var(--calendar-green);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.calendar-header h1 {
    margin: 0;
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    line-height: 1.05;
}

.calendar-navigation {
    display: flex;
    align-items: center;
    gap: 8px;
}

.calendar-navigation button {
    min-width: 46px;
    min-height: 44px;
    padding: 8px 14px;
    color: var(--calendar-text);
    background: var(--calendar-white);
    border: 1px solid var(--calendar-border);
    border-radius: 10px;
    cursor: pointer;
    transition: border-color 160ms ease, background-color 160ms ease;
}

.calendar-navigation button:hover,
.calendar-navigation button:focus-visible {
    background: var(--calendar-cream);
    border-color: var(--calendar-green);
    outline: none;
}

#calendar-prev,
#calendar-next {
    font-size: 1.7rem;
    line-height: 1;
}

.calendar-status {
    min-height: 1.5em;
    margin: -12px 0 18px;
    color: var(--calendar-muted);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.calendar-month {
    min-width: 0;
    overflow: hidden;
    background: var(--calendar-white);
    border: 1px solid var(--calendar-border);
    border-radius: 14px;
}

.calendar-month__title {
    margin: 0;
    padding: 15px 18px;
    color: var(--calendar-white);
    background: var(--calendar-green);
    font-size: 1.1rem;
    font-weight: 700;
    text-align: center;
    text-transform: capitalize;
}

.calendar-weekdays,
.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
}

.calendar-weekdays {
    color: var(--calendar-muted);
    background: #faf9f7;
    border-bottom: 1px solid var(--calendar-border);
    font-size: 0.76rem;
    font-weight: 700;
    text-align: center;
    text-transform: uppercase;
}

.calendar-weekdays > div {
    padding: 10px 3px;
}

.calendar-day {
    position: relative;
    display: grid;
    place-items: center;
    min-width: 0;
    aspect-ratio: 1 / 1;
    background: var(--calendar-green);
    border-right: 1px solid var(--calendar-border);
    border-bottom: 1px solid var(--calendar-border);
}

.calendar-day:nth-child(7n) {
    border-right: 0;
}

.calendar-day--empty {
    background: #faf9f7;
}

.calendar-day.is-occupied {
    background: var(--calendar-red);
}

.calendar-day.is-arrival:not(.is-departure) {
    background: linear-gradient(
        135deg,
        var(--calendar-green) 0 49%,
        var(--calendar-red) 50% 100%
    );
}

.calendar-day.is-departure:not(.is-arrival) {
    background: linear-gradient(
        135deg,
        var(--calendar-red) 0 49%,
        var(--calendar-green) 50% 100%
    );
}

.calendar-day.is-turnover {
    background: var(--calendar-red);
}

.calendar-day.is-today {
    z-index: 1;
    outline: 3px solid var(--calendar-gold);
    outline-offset: -3px;
}

.calendar-day__number {
    position: relative;
    z-index: 2;
    display: grid;
    place-items: center;
    width: clamp(25px, 2.4vw, 31px);
    height: clamp(25px, 2.4vw, 31px);
    color: var(--calendar-text);
    background: rgba(255, 255, 255, 0.92);
    border-radius: 999px;
    font-size: clamp(0.72rem, 1vw, 0.88rem);
    font-weight: 700;
}

.calendar-day__turnover {
    position: absolute;
    right: 4px;
    bottom: 2px;
    z-index: 2;
    color: var(--calendar-white);
    font-size: 0.75rem;
    font-weight: 700;
}

.calendar-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 13px 22px;
    margin-top: 24px;
    color: var(--calendar-muted);
    font-size: 0.9rem;
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.legend-swatch {
    display: inline-block;
    width: 25px;
    height: 25px;
    border: 1px solid var(--calendar-border);
    border-radius: 5px;
}

.legend-swatch--free {
    background: var(--calendar-green);
    border-color: var(--calendar-green);
}

.legend-swatch--occupied {
    background: var(--calendar-red);
    border-color: var(--calendar-red);
}

.legend-swatch--arrival {
    background: linear-gradient(
        135deg,
        var(--calendar-green) 0 49%,
        var(--calendar-red) 50% 100%
    );
}

.legend-swatch--departure {
    background: linear-gradient(
        135deg,
        var(--calendar-red) 0 49%,
        var(--calendar-green) 50% 100%
    );
}

@media (max-width: 1099px) {
    .calendar-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 699px) {
    .page {
        width: min(100% - 20px, 600px);
        padding: 18px 0;
    }

    .availability-calendar {
        padding: 17px;
        border-radius: 13px;
    }

    .calendar-header {
        align-items: stretch;
        flex-direction: column;
        gap: 17px;
    }

    .calendar-navigation {
        justify-content: space-between;
    }

    #calendar-today {
        flex: 1;
    }

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

    .calendar-day__number {
        width: 28px;
        height: 28px;
    }
}