/* ============================================================
   ecoki.jp — Calendar Styles
   Week-grid layout, slot states, legend, responsive.
   ============================================================ */

/* ------------------------------------------------------------
   Calendar header
   ------------------------------------------------------------ */
.cal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: var(--sp-4);
    margin-bottom: var(--sp-5);
}
.cal-header__title .eyebrow { margin-bottom: var(--sp-2); }
.cal-header__month {
    font-family: var(--font-display);
    font-size: var(--fs-xl);
    font-weight: 600;
    letter-spacing: -0.02em;
    margin: 0;
}
html[lang="ja"] .cal-header__month {
    font-family: var(--font-jp);
    font-weight: 700;
}

.cal-header__controls {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
}

.cal-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    background: transparent;
    border: 1px solid var(--line);
    border-radius: 999px;
    font-family: var(--font-body);
    font-size: var(--fs-xs);
    font-weight: 500;
    color: var(--ink-soft);
    text-decoration: none;
    cursor: pointer;
    transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.cal-btn:hover {
    border-color: var(--ink-mute);
    color: var(--ink);
    text-decoration: none;
}
.cal-btn--disabled {
    opacity: 0.35;
    cursor: not-allowed;
    pointer-events: none;
}

/* View toggle (week/month pill) */
.cal-view-toggle {
    display: flex;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 2px;
    margin-left: var(--sp-2);
}
.cal-view-toggle__opt {
    padding: 4px 14px;
    font-size: var(--fs-xs);
    font-weight: 500;
    border-radius: 999px;
    color: var(--ink-mute);
    cursor: pointer;
    transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.cal-view-toggle__opt--active {
    background: var(--ink);
    color: var(--paper);
}

/* ------------------------------------------------------------
   Week grid
   ------------------------------------------------------------ */
.cal-grid {
    display: grid;
    grid-template-columns: 52px repeat(7, 1fr);
    gap: 5px;
}

/* Corner cell (top-left, plus gap spacers) */
.cal-grid__corner { /* empty top-left */ }

/* Day headers */
.cal-grid__day-header {
    text-align: center;
    padding: var(--sp-2) 0 var(--sp-3);
    border-radius: var(--radius-md);
}
.cal-grid__day-header--today {
    /* subtle highlight for today's column header */
}
.cal-grid__day-header--holiday {
    background: var(--paper-deep);
}
.cal-grid__day-header--past {
    opacity: 0.5;
}
.cal-grid__dow {
    display: block;
    font-size: var(--fs-xs);
    color: var(--ink-mute);
    margin-bottom: 2px;
}
.cal-grid__date {
    display: block;
    font-family: var(--font-display);
    font-size: var(--fs-lg);
    font-weight: 600;
    color: var(--ink);
    line-height: 1.2;
}
.cal-grid__day-header--today .cal-grid__date {
    color: var(--terracotta);
}
.cal-grid__day-header--past .cal-grid__date {
    color: var(--ink-mute);
}
.cal-grid__holiday-label {
    display: block;
    font-size: 10px;
    color: var(--ink-mute);
    letter-spacing: 0.05em;
    margin-top: 1px;
}

/* Gap divider between hour bands */
.cal-grid__gap {
    height: 10px;
}

/* Hour label (left column) */
.cal-grid__hour {
    font-size: var(--fs-xs);
    color: var(--ink-mute);
    text-align: right;
    padding-right: 8px;
    padding-top: 8px;
    font-variant-numeric: tabular-nums;
}

/* ------------------------------------------------------------
   Slot cells
   ------------------------------------------------------------ */
.cal-grid__cell {
    height: 38px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-xs);
    font-weight: 500;
    transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
    text-decoration: none;
    position: relative;
}

/* Empty / not offered */
.cal-grid__cell--empty {
    background: var(--paper-deep);
}

/* Available — regular */
.cal-grid__cell--available {
    background: rgba(107, 142, 127, 0.15);
    border: 0.5px solid var(--sea);
    color: var(--sea-deep);
    cursor: pointer;
}
.cal-grid__cell--available:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
    border-color: var(--sea-deep);
    text-decoration: none;
    color: var(--sea-deep);
}
.cal-slot__time {
    font-variant-numeric: tabular-nums;
}

/* Available — trial: distinct warm tint */
.cal-grid__cell--trial {
    background: rgba(181, 74, 60, 0.08);
    border-color: rgba(181, 74, 60, 0.35);
    color: var(--terracotta-deep);
}
.cal-grid__cell--trial:hover {
    border-color: var(--terracotta);
    color: var(--terracotta-deep);
}

/* Trial badge */
.cal-slot__trial {
    position: absolute;
    top: 2px;
    right: 5px;
    font-size: 8px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--terracotta);
}

/* Past slots — inert, greyed, italic time */
.cal-grid__cell--past {
    background: var(--paper-deep);
    border: none;
    color: var(--ink-mute);
    cursor: default;
    pointer-events: none;
    opacity: 0.55;
}
.cal-grid__cell--past .cal-slot__time {
    font-style: italic;
}
.cal-grid__cell--past .cal-slot__trial {
    display: none;
}
.cal-grid__cell--past:hover {
    transform: none;
    box-shadow: none;
}

/* Booked */
.cal-grid__cell--booked {
    background: var(--terracotta);
    color: var(--paper);
}
.cal-grid__cell--mine {
    border: 2px solid var(--terracotta-deep);
}
/* Past + booked: muted terracotta */
.cal-grid__cell--booked.cal-grid__cell--past {
    background: var(--terracotta);
    opacity: 0.4;
    color: var(--paper);
    pointer-events: none;
}
.cal-slot__label {
    font-size: var(--fs-xs);
}

/* ------------------------------------------------------------
   Legend
   ------------------------------------------------------------ */
.cal-legend {
    margin-top: var(--sp-5);
    padding-top: var(--sp-4);
    border-top: 1px solid var(--line);
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-5);
    font-size: var(--fs-xs);
    color: var(--ink-soft);
}
.cal-legend__item {
    display: flex;
    align-items: center;
    gap: 6px;
}
.cal-legend__swatch {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    flex-shrink: 0;
}
.cal-legend__swatch--available {
    background: rgba(107, 142, 127, 0.15);
    border: 0.5px solid var(--sea);
}
.cal-legend__swatch--trial {
    background: rgba(181, 74, 60, 0.08);
    border: 0.5px solid rgba(181, 74, 60, 0.35);
}
.cal-legend__swatch--booked {
    background: var(--terracotta);
}
.cal-legend__swatch--empty {
    background: var(--paper-deep);
}
.cal-legend__holiday-mark {
    font-size: 11px;
    color: var(--ink-mute);
}

/* Info text below legend */
.cal-info {
    margin-top: var(--sp-3);
    font-size: var(--fs-xs);
    color: var(--ink-mute);
    font-style: italic;
}
.cal-info a {
    font-style: normal;
    font-weight: 500;
}

/* ------------------------------------------------------------
   Responsive: mobile agenda view
   ------------------------------------------------------------ */
@media (max-width: 719px) {
    .cal-grid {
        grid-template-columns: 1fr;
        gap: 0;
    }
    .cal-grid__corner,
    .cal-grid__hour,
    .cal-grid__gap {
        display: none;
    }

    /* Day headers become inline dividers */
    .cal-grid__day-header {
        text-align: left;
        padding: var(--sp-4) 0 var(--sp-2);
        display: flex;
        align-items: baseline;
        gap: var(--sp-2);
        border-bottom: 1px solid var(--line);
        margin-bottom: var(--sp-2);
        border-radius: 0;
    }
    .cal-grid__dow {
        display: inline;
        margin-bottom: 0;
    }
    .cal-grid__date {
        display: inline;
        font-size: var(--fs-md);
    }
    .cal-grid__holiday-label {
        display: inline;
        margin-left: var(--sp-2);
    }

    /* Cells stack vertically */
    .cal-grid__cell {
        height: auto;
        padding: var(--sp-3) var(--sp-4);
        margin-bottom: var(--sp-2);
        justify-content: flex-start;
        gap: var(--sp-3);
    }

    /* Hide empty cells on mobile (and past cells) */
    .cal-grid__cell--empty,
    .cal-grid__cell--past:not(.cal-grid__cell--booked) {
        display: none;
    }

    .cal-slot__trial {
        position: static;
    }
}

/* ------------------------------------------------------------
   Holiday column tint (applied by JS to all cells in column)
   REMOVED — holidays do not affect slot availability or colour.
   Only the day header receives a subtle accent border.
   ------------------------------------------------------------ */
.cal-grid__day-header--holiday {
    border-bottom: 2px solid rgba(181, 74, 60, 0.35);
}

/* ------------------------------------------------------------
   Month view
   ------------------------------------------------------------ */
.cal-month {
    margin-bottom: var(--sp-5);
}
.cal-month__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--sp-3);
    margin-bottom: var(--sp-4);
}
.cal-month__title {
    font-family: var(--font-display);
    font-size: var(--fs-xl);
    font-weight: 600;
    letter-spacing: -0.02em;
    margin: 0;
}
html[lang="ja"] .cal-month__title {
    font-family: var(--font-jp);
    font-weight: 700;
}
.cal-month__nav {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
}

.cal-month__grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}
.cal-month__dow {
    text-align: center;
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--ink-mute);
    padding: var(--sp-2) 0;
    letter-spacing: 0.04em;
}
.cal-month__cell {
    min-height: 72px;
    padding: var(--sp-2);
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    text-decoration: none;
    color: var(--ink);
    transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
    position: relative;
    overflow: hidden;
}
.cal-month__cell:hover {
    border-color: var(--sea);
    text-decoration: none;
}
.cal-month__cell--faded {
    background: var(--paper-deep);
    opacity: 0.45;
    pointer-events: none;
}
.cal-month__cell--past {
    opacity: 0.5;
    pointer-events: none;
}
.cal-month__cell--today {
    border-color: var(--terracotta);
}
.cal-month__cell--holiday {
    background: var(--paper-deep);
}
.cal-month__day-num {
    font-family: var(--font-display);
    font-size: var(--fs-md);
    font-weight: 600;
    line-height: 1;
    color: var(--ink);
}
.cal-month__cell--today .cal-month__day-num {
    color: var(--terracotta);
}
.cal-month__cell--past .cal-month__day-num {
    color: var(--ink-mute);
}
.cal-month__holiday-label {
    font-size: 9px;
    font-weight: 600;
    color: var(--ink-mute);
    letter-spacing: 0.05em;
    background: rgba(139, 143, 153, 0.12);
    border-radius: 3px;
    padding: 1px 4px;
}
.cal-month__dot {
    display: block;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    margin-top: auto;
}
.cal-month__dot--open {
    background: var(--sea);
}
.cal-month__dot--full {
    background: var(--terracotta);
    opacity: 0.45;
}

@media (max-width: 719px) {
    .cal-month__cell {
        min-height: 52px;
        padding: var(--sp-1) var(--sp-2);
    }
    .cal-month__day-num { font-size: var(--fs-sm); }
}

/* ------------------------------------------------------------
   Reduced motion
   ------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
    .cal-grid__cell { transition: none; }
}