/* Sudoku: layered on assets/site.css. Class prefix sk- throughout. */

.sk-game {
  padding-left: 0.6rem;
  padding-right: 0.6rem;
}

.pp-diff-row #diff-tabs {
  flex: 1 1 auto;
  min-width: 0;
}

.sk-timer {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

.sk-toolbar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.sk-tools {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.sk-tools .pp-icon-btn[aria-pressed="true"] {
  background: var(--g-color-soft, color-mix(in srgb, var(--accent) 18%, var(--surface)));
  color: var(--g-color, var(--accent));
}

.sk-tools .pp-icon-btn svg {
  width: 1.1rem;
  height: 1.1rem;
}

/* ---------- board ---------- */

/*
  A 9x9 board can't clear the 44px touch-target guideline on a narrow phone
  without redesigning the grid, so the zoom toggle grows the board itself
  past its wrapper instead: cells stay proportioned the same, they're just
  bigger, and the wrapper scrolls to reach every corner. Off by default, the
  wrap behaves like a plain container with no size of its own.
*/
.sk-board-wrap {
  margin: 0 auto;
}

.sk-board-wrap[data-zoomed="true"] {
  overflow: auto;
  -webkit-overflow-scrolling: touch;
  max-height: min(75vh, 520px);
  border-radius: var(--radius-sm);
  box-shadow: inset 0 0 0 1px var(--line);
}

.sk-board-wrap[data-zoomed="true"] .sk-board {
  width: 170%;
  max-width: none;
}

.sk-board {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 1px;
  background: var(--line);
  border: 2px solid var(--text);
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 1;
  margin: 0 auto;
}

.sk-cell {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  background: var(--surface);
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(0.95rem, 4.2vw, 1.4rem);
  min-height: 0;
  transition: background-color var(--motion-fast) var(--ease);
}

.sk-cell.sk-box-right {
  border-right: 2px solid var(--text);
}

.sk-cell.sk-box-bottom {
  border-bottom: 2px solid var(--text);
}

.sk-cell[data-given="true"] {
  color: var(--text);
  font-weight: 700;
}

.sk-cell[data-given="false"] {
  color: var(--g-color, var(--accent));
}

.sk-cell[data-peer="true"] {
  background: var(--surface-2);
}

.sk-cell[data-same="true"] {
  background: color-mix(in srgb, var(--g-color, var(--accent)) 16%, var(--surface));
}

.sk-cell[data-selected="true"] {
  background: color-mix(in srgb, var(--g-color, var(--accent)) 28%, var(--surface));
  box-shadow: inset 0 0 0 2px var(--g-color, var(--accent));
  z-index: 1;
}

.sk-cell[data-conflict="true"] {
  color: var(--bad);
}

.sk-cell[data-conflict="true"]::after {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 2px;
  background: color-mix(in srgb, var(--bad) 18%, transparent);
  pointer-events: none;
}

.sk-cell--pop {
  animation: pp-pop var(--motion-fast) var(--ease);
}

.sk-marks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  width: 88%;
  height: 88%;
  place-items: center;
}

.sk-mark {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: clamp(0.5rem, 1.8vw, 0.68rem);
  color: var(--muted);
  line-height: 1;
}

.sk-mark--empty {
  visibility: hidden;
}

/* ---------- number pad ---------- */

.sk-pad {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.4rem;
  margin-top: 0.85rem;
}

.sk-pad-btn {
  min-height: 44px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--motion-fast) var(--ease), background-color var(--motion-fast) var(--ease);
}

.sk-pad-btn:hover {
  transform: translateY(-1px);
}

.sk-pad-btn:active {
  transform: translateY(0);
}

.sk-pad-btn[data-exhausted="true"] {
  opacity: 0.35;
}

.sk-pad-btn--erase {
  color: var(--muted);
}

.sk-pad-btn--erase svg {
  stroke: currentColor;
}

/* ---------- status + done panel ---------- */

.sk-status {
  margin-top: 0.6rem;
  min-height: 1.2rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

.sk-done {
  margin-top: 1.1rem;
  padding: 1.1rem;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.sk-done p {
  margin-bottom: 0.85rem;
  font-size: 1.02rem;
}

.sk-done-actions {
  display: flex;
  gap: 0.6rem;
  justify-content: center;
  flex-wrap: wrap;
}

.sk-help-label {
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 0.4rem;
}

@media (max-width: 400px) {
  .sk-pad {
    grid-template-columns: repeat(5, 1fr);
    gap: 0.3rem;
  }

  .sk-pad-btn {
    font-size: 1rem;
  }
}