/* =========================================================================
   Timetable — page-specific styles
   Design tokens, base, masthead, toolbar, page switch and theme switch all
   come from shared.css. This file only adds what the timetable view needs.
   ========================================================================= */

/* =========================================================================
   Grade pills
   ========================================================================= */
.grade-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 28px 0 8px;
}
.grade-pill {
  padding: 7px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
  background: var(--bone);
  color: var(--ink-3);
  border: 1px solid var(--rule);
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
}
.grade-pill:hover {
  border-color: var(--ink);
  color: var(--ink);
}
.grade-pill[aria-pressed="true"] {
  background: var(--ink);
  color: var(--bone);
  border-color: var(--ink);
  font-weight: 600;
}

/* =========================================================================
   Section header for selected class
   ========================================================================= */
.tt-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 32px 0 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ink);
  gap: 16px;
  flex-wrap: wrap;
}
.tt-head h2 {
  margin: 0;
  font-size: clamp(28px, 3.4vw, 32px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--ink);
}
.tt-head .updated {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
}

/* =========================================================================
   Timetable grid
   ========================================================================= */
.tt-wrapper {
  position: relative;
  background: var(--bone);
  border: 1px solid var(--rule);
  overflow: hidden;
}
.tt-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.tt {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-family: var(--font-sans);
  table-layout: fixed;
}
.tt thead th {
  padding: 12px 12px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--paper-2);
  border-bottom: 1px solid var(--ink);
  text-align: left;
  vertical-align: middle;
}
.tt thead th.period-col-head {
  width: 116px;
  border-right: 1px solid var(--rule);
}
.tt tbody td {
  padding: 12px 12px;
  border-bottom: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
  vertical-align: middle;
  height: 60px;
  background: var(--bone);
}
.tt tbody tr:last-child td { border-bottom: none; }
.tt tbody td:last-child { border-right: none; }

.tt .period-cell {
  background: var(--paper-2);
  font-family: var(--font-mono);
  border-right: 1px solid var(--rule);
}
.tt .period-cell .num {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.tt .period-cell .time {
  display: block;
  color: var(--ink-3);
  font-size: 10px;
  margin-top: 2px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.tt .subject {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.25;
}

/* Lunch cells */
.tt td.lun {
  background: var(--paper-2);
  color: var(--ink-4);
}
.tt td.lun .subject {
  font-weight: 500;
  font-style: italic;
  color: var(--ink-4);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Empty cells (pre-primary half day) */
.tt td.empty {
  background: repeating-linear-gradient(
    135deg,
    var(--paper) 0 6px,
    var(--paper-2) 6px 12px
  );
}

/* Whole-school activity highlight */
.tt td.activity {
  background: var(--ppp-red-soft);
}
.tt td.activity .subject {
  color: var(--ppp-red-deep);
  font-weight: 700;
}

/* Snack break row */
.tt .break-row td {
  padding: 8px 12px;
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--ink-3);
  text-transform: uppercase;
  text-align: center;
  border-bottom: 1px solid var(--rule);
  border-top: 1px solid var(--rule);
  height: auto;
}
.tt .break-row td .break-label {
  display: inline-block;
  padding: 0 12px;
}

/* Sticky first column on mobile */
@media (max-width: 720px) {
  .tt .period-cell,
  .tt thead th.period-col-head {
    position: sticky;
    left: 0;
    z-index: 2;
    box-shadow: 1px 0 0 var(--rule);
  }
  .tt thead th.period-col-head { z-index: 3; }
  .tt tbody td { padding: 10px 8px; height: 56px; }
  .tt .subject { font-size: 12px; }
}

/* =========================================================================
   Legend
   ========================================================================= */
.legend-section {
  margin-top: 56px;
}
.legend-details {
  background: var(--white);
  border: 1px solid var(--rule);
  padding: 20px 24px;
}
.legend-details #legend-container { margin-top: 20px; }
.legend-details #legend-container .legend-group:last-child { margin-bottom: 0; }
.legend-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 0;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.legend-head::-webkit-details-marker { display: none; }
.legend-head:focus-visible {
  outline: 2px solid var(--ppp-red);
  outline-offset: 4px;
}
.legend-meta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.legend-chevron {
  width: 18px;
  height: 18px;
  color: var(--ink-3);
  transition: transform var(--dur-med) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
.legend-head:hover .legend-chevron { color: var(--ink); }
.legend-details[open] .legend-chevron { transform: rotate(180deg); }
.legend-head h2 {
  margin: 0;
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--ink);
}
.legend-head .count {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
}

.legend-group {
  margin-bottom: 28px;
}
.legend-group-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 12px;
  padding-bottom: 6px;
  border-bottom: 1px dotted var(--rule);
}

.legend-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 2px 32px;
}
.legend-item {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 12px;
  padding: 6px 0;
  align-items: baseline;
}
.legend-key {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--ink);
  font-size: 12px;
  letter-spacing: 0.02em;
}
.legend-val {
  color: var(--ink-2);
  font-size: 13px;
  line-height: 1.35;
}

/* =========================================================================
   Dark theme (timetable-specific overrides)
   ========================================================================= */
html.dark { --ppp-red-soft: #3A2620; }
html.dark .tt td.activity { background: var(--ppp-red-soft); }
html.dark .tt td.activity .subject { color: #F0A48B; }