/* ===========================
   Availability Calendar Widget
   Apple Calendar-style week view showing busy/free only.
   =========================== */

.availability-section {
    max-width: 1120px;
    margin: var(--space-xxl) auto 0;
}

.availability-title-row {
    display: flex;
    align-items: baseline;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: var(--space-md);
}

.availability-section-title {
    margin: 0;
    font-family: var(--font-sans);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

.availability-subtitle {
    color: var(--color-text-tertiary);
    font-size: var(--font-size-xs);
    line-height: 1.4;
}

.availability-card {
    width: 100%;
    padding: var(--space-lg);
    border: 1px solid var(--border-color-light);
    border-radius: var(--border-radius-xl);
    background: #fff;
    box-shadow: var(--shadow-md);
}

.availability-legend {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
    margin-bottom: var(--space-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.availability-legend-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 3px;
    display: inline-block;
}

.legend-dot.busy {
    background: var(--color-primary);
}

.legend-dot.free {
    background: transparent;
    border: 1px solid var(--border-color);
}

.availability-updated {
    margin-left: auto;
    color: var(--color-text-tertiary);
    font-size: var(--font-size-xs);
}

.availability-loading,
.availability-error {
    padding: var(--space-xl) 0;
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-base);
}

.availability-grid {
    --avail-hour-col-width: 52px;
    --avail-hour-row-height: 40px;
}

.avail-header-row,
.avail-allday-row {
    display: grid;
    grid-template-columns: var(--avail-hour-col-width) repeat(7, 1fr);
}

.avail-header-cell {
    padding: 4px 6px 8px;
    text-align: center;
    border-bottom: 1px solid var(--border-color-light);
}

.avail-header-cell.is-corner {
    border-bottom: 1px solid var(--border-color-light);
}

.avail-header-weekday {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.avail-header-daynum {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    margin-top: 2px;
    border-radius: 50%;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text-primary);
}

.avail-header-cell.is-today .avail-header-daynum {
    background: var(--color-primary);
    color: #fff;
}

.avail-allday-cell {
    min-height: 14px;
    padding: 3px;
    border-bottom: 1px solid var(--border-color-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.avail-allday-bar {
    width: 100%;
    height: 10px;
    border-radius: 4px;
    background: var(--color-primary);
    opacity: 0.85;
}

.avail-body-wrap {
    position: relative;
    max-height: 460px;
    overflow-y: auto;
    display: flex;
    align-items: flex-start;
}

.avail-hour-col {
    position: relative;
    flex: 0 0 var(--avail-hour-col-width);
    height: calc(var(--avail-hour-row-height) * 24);
}

.avail-hour-label {
    position: absolute;
    left: 0;
    right: 6px;
    transform: translateY(-50%);
    text-align: right;
    font-size: 11px;
    color: var(--color-text-tertiary);
}

.avail-days-col {
    position: relative;
    flex: 1 1 auto;
    display: flex;
    height: calc(var(--avail-hour-row-height) * 24);
}

.avail-day-col {
    position: relative;
    flex: 1 1 0;
    height: 100%;
    border-left: 1px solid var(--border-color-light);
}

.avail-hour-line {
    position: absolute;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border-color-light);
}

.avail-busy-block {
    position: absolute;
    left: 3px;
    right: 3px;
    min-height: 6px;
    border-radius: 5px;
    background: var(--color-primary);
    opacity: 0.85;
}

.avail-now-line {
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-secondary);
    z-index: 2;
}

.avail-now-line::before {
    content: "";
    position: absolute;
    left: -4px;
    top: 50%;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-secondary);
    transform: translateY(-50%);
}

@media (max-width: 640px) {
    .availability-card {
        padding: var(--space-md);
    }

    .availability-grid {
        --avail-hour-col-width: 40px;
        --avail-hour-row-height: 34px;
    }

    .avail-header-weekday {
        font-size: 10px;
    }

    .avail-header-daynum {
        width: 22px;
        height: 22px;
        font-size: var(--font-size-sm);
    }
}

/* Dark mode */
[data-theme="dark"] .availability-card {
    background: #111827;
    border-color: rgba(248, 250, 252, 0.12);
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.32);
}

[data-theme="dark"] .avail-header-cell,
[data-theme="dark"] .avail-allday-cell {
    border-color: #374151;
}

[data-theme="dark"] .avail-day-col {
    border-color: #374151;
}

[data-theme="dark"] .avail-hour-line {
    background: #2a333f;
}

[data-theme="dark"] .avail-header-daynum {
    color: #f3f4f6;
}

[data-theme="dark"] .legend-dot.free {
    border-color: #4b5563;
}