/* ==========================================================================
   MapleBird — pages/blackjack.css
   The interactive basic-strategy chart. Colour is never the only signal:
   every cell also carries its letter code, and the legend spells it out.
   ========================================================================== */

.sc {
  display: grid;
  gap: var(--space-8);
}

.sc__controls {
  display: grid;
  gap: var(--space-5);
  padding: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

@media (min-width: 900px) {
  .sc__controls {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
}

.sc__fieldset {
  border: 0;
  display: grid;
  gap: var(--space-3);
}

.sc__legend {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  padding: 0;
}

.sc__radios {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.sc__radio {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-surface-2);
  font-size: var(--text-sm);
  cursor: pointer;
}

.sc__radio:hover {
  border-color: var(--color-accent);
}

.sc__radio input {
  accent-color: var(--color-accent);
  width: 1rem;
  height: 1rem;
}

.sc__fields {
  display: grid;
  gap: var(--space-3);
}

@media (min-width: 520px) {
  .sc__fields {
    grid-template-columns: repeat(3, 1fr);
  }
}

.sc__field {
  display: grid;
  gap: var(--space-2);
}

.sc__field label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.sc__field select {
  width: 100%;
  min-height: 2.75rem;
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface-2);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
}

.sc__field select:hover {
  border-color: var(--color-accent);
}

.sc__result {
  padding: var(--space-5);
  background: var(--color-surface-2);
  border: 1px solid var(--color-accent-line);
  border-radius: var(--radius-md);
}

.sc__verdict {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-lg);
  margin-block-end: var(--space-2);
}

.sc__badge {
  display: inline-grid;
  place-items: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding-inline: var(--space-2);
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
}

/* --------------------------------------------------------------- the chart */

.sc__table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.sc__table {
  width: 100%;
  min-width: 32rem;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.sc__table caption {
  caption-side: top;
  text-align: left;
  padding: var(--space-4) var(--space-4) var(--space-2);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text-primary);
}

.sc__table th,
.sc__table td {
  border: 1px solid var(--color-border);
  padding: var(--space-2);
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.sc__table thead th {
  background: var(--color-surface-2);
  color: var(--color-accent);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.sc__table tbody th {
  background: var(--color-surface-2);
  color: var(--color-text-primary);
  font-weight: 700;
  white-space: nowrap;
  text-align: center;
}

.sc__cell {
  font-weight: 700;
  color: var(--color-text-primary);
  min-width: 2.25rem;
}

/* Every colour pairs with a letter, so the chart survives greyscale printing
   and colour-vision deficiency. All fills carry the same dark ink, and every
   pairing clears 5.8:1 against it — the weakest is Rs at 5.82. */
.sc__cell--h  { background: #E8E8E0; }
.sc__cell--s  { background: #FFF0B8; }
.sc__cell--d  { background: #FFD700; }
.sc__cell--ds { background: #E8B400; }
.sc__cell--p  { background: #9FDCD2; }
.sc__cell--ph { background: #5FBCAE; }
.sc__cell--r  { background: #F6A6A6; }
.sc__cell--rs { background: #E07070; }

.sc__table [data-hl='row'] th,
.sc__table [data-hl='col'] {
  box-shadow: inset 0 0 0 2px var(--color-accent-line);
}

.sc__table [data-hl='cell'] {
  box-shadow: inset 0 0 0 3px var(--color-text-primary);
}

/* ------------------------------------------------------------------ legend */

.sc__key {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: var(--space-3);
}

.sc__key li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
}

.sc__swatch {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-text-primary);
}

.sc__expand {
  margin-block-start: var(--space-4);
}