/* Leaderboard; the data form comes from :has() on the radios, or from the
   data-form attribute main.js sets. Kept as separate rules: a browser without
   :has() drops any selector list containing it. */
.board {
  margin: 28px 0 32px;
  padding: 0;
}

.board-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 6px 16px;
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-soft);
}

.board-cap {
  display: inline-flex;
  gap: 8px;
  align-items: baseline;
}

.board-forms {
  display: inline-flex;
  border: 1px solid var(--rule);
  border-radius: 3px;
  overflow: hidden;
}

.board-forms label {
  cursor: pointer;
}

.board-forms input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.board-forms span {
  display: block;
  padding: 3px 10px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.board-forms label + label span {
  border-left: 1px solid var(--rule);
}

.board-forms input:checked + span {
  background: var(--ink);
  color: var(--paper);
}

.board-forms input:focus-visible + span {
  outline: 2px solid var(--signal);
  outline-offset: -2px;
}

.board-key {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  margin-bottom: 10px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-soft);
}

.board-key span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.sw {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
}

.sw-yn { background: #d4481c; }
.sw-choice { background: #1c78a8; }
.sw-score { background: #b8901f; }
.sw-base { background: var(--ink-faint); }

.board-row {
  display: grid;
  grid-template-columns: 112px 1fr 200px;
  gap: 0 12px;
  align-items: center;
  padding: 5px 0;
  border-top: 1px solid var(--paper-deep);
  font-size: 13px;
  line-height: 1.3;
}

.board-name {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
}

.board-q {
  color: var(--ink-soft);
}

.board-row .bar-track {
  height: 10px;
}

.board-row .bar-area {
  position: relative;
  display: block;
  width: calc(100% - 40px);
  height: 100%;
}

.board-row .bar-fill {
  width: var(--number);
  transition: width 0.35s ease;
}

.board-row .bar-value {
  position: absolute;
  top: 0;
  left: calc(var(--number) + 6px);
  line-height: 10px;
  white-space: nowrap;
  transition: left 0.35s ease;
}

.board-row .bar-value::after {
  content: attr(data-number);
}

.board:has(input[value="words"]:checked) .bar-fill { width: var(--words); }
.board:has(input[value="words"]:checked) .bar-value { left: calc(var(--words) + 6px); }
.board:has(input[value="words"]:checked) .bar-value::after { content: attr(data-words); }

.board[data-form="words"] .bar-fill { width: var(--words); }
.board[data-form="words"] .bar-value { left: calc(var(--words) + 6px); }
.board[data-form="words"] .bar-value::after { content: attr(data-words); }

.board:has(input[value="binary"]:checked) .bar-fill { width: var(--binary); }
.board:has(input[value="binary"]:checked) .bar-value { left: calc(var(--binary) + 6px); }
.board:has(input[value="binary"]:checked) .bar-value::after { content: attr(data-binary); }

.board[data-form="binary"] .bar-fill { width: var(--binary); }
.board[data-form="binary"] .bar-value { left: calc(var(--binary) + 6px); }
.board[data-form="binary"] .bar-value::after { content: attr(data-binary); }

@media (max-width: 700px) {
  .board-row {
    grid-template-columns: 112px 1fr;
    gap: 3px 12px;
  }

  .board-row .bar-track {
    grid-column: 1 / -1;
  }
}

.math {
  margin: 0 0 1.1em;
  padding: 6px 14px;
  background: var(--paper-deep);
  overflow-x: auto;
}

.math .katex-display {
  margin: 6px 0;
}

.math .katex-display > .katex {
  text-align: left;
  font-size: 1.05em;
}