/* ============================================================
   CrossWord — reading_calendar.css
   Reading plan calendar overlay.
   ============================================================ */

/* ── Overlay ─────────────────────────────────────────────── */
.rcal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 580;
    background: rgba(17,37,72,0.55);
    backdrop-filter: blur(3px);
    align-items: flex-start;
    justify-content: center;
    padding: env(safe-area-inset-top, 0px) 0 0;
    overflow-y: auto;
}

.rcal-overlay.open {
    display: flex;
    animation: modalBackdropIn 0.2s ease;
}

/* ── Panel ───────────────────────────────────────────────── */
.rcal-panel {
    background: var(--surface);
    width: 100%;
    max-width: 820px;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    animation: searchSlideDown 0.22s cubic-bezier(0.16,1,0.3,1);
}

@media (min-width: 860px) {
    .rcal-overlay { align-items: flex-start; padding: var(--sp-xl); overflow: unset; }
    .rcal-panel {
        min-height: unset;
        max-height: 92dvh;
        border-radius: var(--r-xl);
        box-shadow: var(--shadow-xl);
        overflow-y: auto;
    }
}

/* ── Header ──────────────────────────────────────────────── */
.rcal-header {
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
    padding: var(--sp-sm) var(--sp-md);
    background: var(--navy);
    position: sticky;
    top: 0;
    z-index: 10;
    flex-shrink: 0;
}

.rcal-month-label {
    flex: 1;
    text-align: center;
    font-family: var(--font-display);
    font-size: 0.95rem;
    letter-spacing: 0.06em;
    color: var(--parchment);
}

.rcal-nav-btn,
.rcal-close-btn {
    background: none;
    border: none;
    color: rgba(237,227,207,0.7);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--r-sm);
    line-height: 1;
    transition: color 0.15s;
}
.rcal-nav-btn:hover,
.rcal-close-btn:hover { color: var(--parchment); }

/* ── Calendar grid ───────────────────────────────────────── */
.rcal-grid {
    padding: var(--sp-sm);
}

.rcal-dow-row {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
    margin-bottom: 2px;
}

.rcal-dow {
    text-align: center;
    font-family: var(--font-display);
    font-size: 0.6rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 4px 0;
}

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

/* ── Calendar cells ──────────────────────────────────────── */
.rcal-cell {
    min-height: 70px;
    background: var(--surface-raised);
    border-radius: var(--r-sm);
    padding: 4px;
    cursor: default;
    transition: background 0.15s;
    overflow: hidden;
    position: relative;
}

.rcal-cell-empty {
    background: transparent;
    cursor: default;
}

.rcal-cell.rcal-has-reading {
    cursor: pointer;
}

.rcal-cell.rcal-has-reading:hover {
    background: rgba(27,58,107,0.08);
}

.rcal-cell.rcal-today {
    outline: 2px solid var(--gold);
    outline-offset: -2px;
}

.rcal-cell.rcal-current-day {
    background: rgba(27,58,107,0.06);
}

.rcal-date-num {
    font-family: var(--font-display);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 3px;
}

.rcal-cell.rcal-today .rcal-date-num {
    color: var(--navy);
    font-weight: 700;
}

/* ── Assignment pills ────────────────────────────────────── */
.rcal-pills {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.rcal-pill {
    font-size: 0.55rem;
    line-height: 1.3;
    color: var(--navy);
    background: rgba(27,58,107,0.08);
    border-radius: 3px;
    padding: 1px 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-family: var(--font-display);
    letter-spacing: 0.02em;
}

.rcal-pill.rcal-pill-current {
    background: rgba(201,168,76,0.2);
    color: var(--navy);
    font-weight: 600;
}

/* ── Day detail modal ────────────────────────────────────── */
.rcal-detail {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 600;
    background: rgba(17,37,72,0.5);
    backdrop-filter: blur(2px);
    align-items: flex-end;
    justify-content: center;
    padding: var(--sp-md);
}

.rcal-detail.open {
    display: flex;
    animation: modalBackdropIn 0.15s ease;
}

@media (min-width: 600px) {
    .rcal-detail { align-items: center; }
}

.rcal-detail-panel {
    background: var(--surface);
    border-radius: var(--r-xl) var(--r-xl) 0 0;
    width: 100%;
    max-width: 540px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    animation: lessonSlideUp 0.2s cubic-bezier(0.16,1,0.3,1);
    max-height: 80dvh;
    display: flex;
    flex-direction: column;
}

@media (min-width: 600px) {
    .rcal-detail-panel { border-radius: var(--r-xl); }
}

.rcal-detail-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sp-sm) var(--sp-md);
    background: var(--navy);
    flex-shrink: 0;
}

.rcal-detail-date {
    font-family: var(--font-display);
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    color: var(--parchment);
}

.rcal-detail-close {
    background: none;
    border: none;
    color: rgba(237,227,207,0.6);
    font-size: 1rem;
    cursor: pointer;
    padding: 4px 6px;
    border-radius: var(--r-sm);
    transition: color 0.15s;
}
.rcal-detail-close:hover { color: var(--parchment); }

.rcal-detail-body {
    overflow-y: auto;
    padding: var(--sp-sm) var(--sp-md) var(--sp-md);
    -webkit-overflow-scrolling: touch;
}

.rcal-detail-row {
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
    padding: var(--sp-sm) 0;
    border-bottom: 1px solid var(--border-light);
    flex-wrap: wrap;
}
.rcal-detail-row:last-child { border-bottom: none; }

.rcal-detail-row.rcal-detail-current {
    background: rgba(201,168,76,0.06);
    margin: 0 calc(-1 * var(--sp-md));
    padding-left: var(--sp-md);
    padding-right: var(--sp-md);
}

.rcal-detail-plan {
    font-size: 0.72rem;
    color: var(--text-muted);
    width: 100%;
    font-family: var(--font-display);
    letter-spacing: 0.03em;
}

.rcal-detail-ref {
    font-family: var(--font-display);
    font-size: 0.95rem;
    color: var(--navy);
    font-weight: 600;
    flex: 1;
}

.rcal-detail-meta {
    font-size: 0.7rem;
    color: var(--text-muted);
    flex-shrink: 0;
}

/* ── Start date settings ─────────────────────────────────── */
.rcal-settings {
    border-top: 1px solid var(--border-light);
    padding: var(--sp-md);
    background: var(--surface-raised);
}

.rcal-settings-title {
    font-family: var(--font-display);
    font-size: 0.65rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: var(--sp-sm);
}

.rcal-setting-row {
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
    padding: var(--sp-xs) 0;
    border-bottom: 1px solid var(--border-light);
    flex-wrap: wrap;
}
.rcal-setting-row:last-child { border-bottom: none; }

.rcal-setting-label {
    flex: 1;
    font-size: 0.82rem;
    color: var(--text-primary);
    min-width: 140px;
}

.rcal-date-input {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    padding: 5px 8px;
    font-family: var(--font-body);
    font-size: 0.82rem;
    color: var(--text-primary);
    outline: none;
    flex-shrink: 0;
    transition: border-color 0.2s;
}
.rcal-date-input:focus { border-color: var(--navy-mid); }

/* ── Mobile: smaller cells ───────────────────────────────── */
@media (max-width: 480px) {
    .rcal-cell { min-height: 52px; }
    .rcal-pill { display: none; }  /* too small — tap to see detail */
    .rcal-cell.rcal-has-reading::after {
        content: '●';
        display: block;
        font-size: 0.5rem;
        color: var(--gold);
        text-align: center;
        margin-top: 2px;
    }
}