/* Daily Sudoku player */
.sudoku-page {
  --sudoku-ink: var(--games-ink, #20242a);
  --sudoku-muted: var(--games-muted, #68717d);
  --sudoku-rule: #c8ced6;
  --sudoku-heavy-rule: #636c78;
  --sudoku-surface: #f8fafc;
  --sudoku-highlight: #eaf2ff;
  --sudoku-selected: #cfe2ff;
  --sudoku-accent: var(--games-accent, #0b5ed7);
  --sudoku-error: var(--games-danger, #b42318);
}

/* Timer, shown in the compact games bar */
.sudoku-timer-group {
  align-items: center;
  display: flex;
  flex: 0 0 auto;
  gap: .4rem;
}

.sudoku-timer {
  color: var(--sudoku-ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 1.15rem;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  text-align: right;
}

.sudoku-pause {
  padding: 0;
  width: var(--games-touch, 2.75rem);
}

/* Board. Its width is also capped by the viewport height so the tools and
   number pad stay on screen below it. */
.sudoku-board-wrap {
  margin: 0 auto;
  max-width: min(620px, max(18.75rem, calc(100svh - 20rem)));
  position: relative;
}

.sudoku-board {
  background: var(--sudoku-heavy-rule);
  border: 2px solid var(--sudoku-heavy-rule);
  display: grid;
  gap: 0;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  overflow: hidden;
  touch-action: manipulation;
}

.sudoku-cell {
  align-items: center;
  aspect-ratio: 1;
  background: #fff;
  border: 0;
  border-bottom: 1px solid var(--sudoku-rule);
  border-right: 1px solid var(--sudoku-rule);
  border-radius: 0;
  box-sizing: border-box;
  color: var(--sudoku-accent);
  display: flex;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: clamp(1.35rem, 5.5vw, 2.4rem);
  font-weight: 650;
  justify-content: center;
  line-height: 1;
  min-height: 0;
  padding: 0;
  position: relative;
  transition: background-color .12s ease, box-shadow .12s ease;
}

.sudoku-cell:nth-child(3n) {
  border-right: 3px solid var(--sudoku-heavy-rule);
}

.sudoku-cell--given {
  background: #f1f3f6;
  color: var(--sudoku-ink);
  font-weight: 800;
}

.sudoku-cell--row-divider {
  border-bottom: 3px solid var(--sudoku-heavy-rule);
}

.sudoku-cell--column-divider {
  border-right: 3px solid var(--sudoku-heavy-rule);
}

.sudoku-cell:nth-child(9n) {
  border-right: 0;
}

.sudoku-cell:nth-child(n + 73) {
  border-bottom: 0;
}

.sudoku-cell:hover,
.sudoku-cell:focus-visible {
  background: var(--sudoku-highlight);
  outline: 0;
  z-index: 1;
}

.sudoku-cell:focus-visible {
  box-shadow: inset 0 0 0 3px var(--sudoku-accent);
}

.sudoku-cell.is-peer {
  background: #eaf1fc;
}

.sudoku-cell.is-match {
  background: #cfe8d7;
}

.sudoku-cell.is-selected {
  background: var(--sudoku-selected);
  box-shadow: inset 0 0 0 2px var(--sudoku-accent);
  z-index: 2;
}

.sudoku-cell.is-error {
  background: var(--games-danger-soft, #fde8e7);
  color: var(--sudoku-error);
}

.sudoku-cell.is-error.is-selected {
  box-shadow: inset 0 0 0 2px var(--sudoku-error);
}

.sudoku-cell.is-complete {
  background: #e9f7ef;
}

.sudoku-notes {
  color: #596575;
  display: grid;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: clamp(.43rem, 1.5vw, .72rem);
  font-weight: 700;
  grid-template-columns: repeat(3, 1fr);
  inset: .16rem;
  line-height: 1;
  place-items: center;
  position: absolute;
}

.sudoku-cell.has-value .sudoku-notes {
  display: none;
}

/* Pause overlay (shared overlay styles are in games.css) */
.sudoku-overlay--paused .fa-play {
  color: var(--sudoku-accent);
  font-size: 1.75rem;
  margin-bottom: .5rem;
}

.sudoku-overlay--paused:focus-visible .games-overlay-panel {
  outline: 3px solid var(--sudoku-accent);
  outline-offset: 2px;
}

.sudoku-page[data-locked="true"] .sudoku-board {
  filter: blur(1.5px);
  opacity: .7;
}

/* Tools and number pad */
.sudoku-controls[aria-disabled="true"] {
  opacity: .6;
  pointer-events: none;
}

/* Equal columns for however many tools are shown (Check hides while
   conflicts are highlighted). */
.sudoku-tools {
  display: grid;
  gap: .4rem;
  grid-auto-columns: minmax(0, 1fr);
  grid-auto-flow: column;
}

.sudoku-tool[hidden] {
  display: none;
}

.sudoku-tool {
  align-items: center;
  background: transparent;
  border: 1px solid transparent;
  border-radius: .6rem;
  color: var(--sudoku-ink);
  display: flex;
  flex-direction: column;
  font-size: .76rem;
  font-weight: 600;
  gap: .2rem;
  justify-content: center;
  min-height: 3.25rem;
  padding: .3rem .25rem;
  -webkit-touch-callout: none;
  user-select: none;
}

.sudoku-tool > span {
  white-space: nowrap;
}

.sudoku-tool :is(i, svg) {
  font-size: 1.15rem;
}

.sudoku-tool:hover:not(:disabled),
.sudoku-tool:focus-visible {
  background: var(--sudoku-highlight);
  color: var(--sudoku-accent);
  outline: 0;
}

.sudoku-tool:focus-visible {
  border-color: var(--sudoku-accent);
}

.sudoku-tool:disabled {
  color: #9aa2ad;
}

.sudoku-tool[aria-pressed="true"] {
  background: var(--sudoku-accent);
  color: #fff;
}

.sudoku-tool-state {
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: .6rem;
  letter-spacing: .04em;
  margin-left: .15rem;
  padding: 0 .3rem;
  text-transform: uppercase;
}

.sudoku-keypad {
  border: 2px solid transparent;
  border-radius: .7rem;
  display: grid;
  gap: .3rem;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  padding: 2px;
  transition: border-color .12s ease;
}

.sudoku-key {
  align-items: center;
  background: var(--sudoku-surface);
  border: 1px solid #cbd2da;
  border-radius: .5rem;
  color: var(--sudoku-ink);
  display: flex;
  font-size: 1.35rem;
  font-weight: 700;
  justify-content: center;
  min-height: 3.25rem;
  min-width: 0;
  padding: 0;
  position: relative;
  user-select: none;
}

.sudoku-key:hover:not(:disabled),
.sudoku-key:focus-visible {
  background: var(--sudoku-highlight);
  border-color: var(--sudoku-accent);
  color: var(--sudoku-accent);
  outline: 0;
}

.sudoku-key-count {
  bottom: .15rem;
  color: var(--sudoku-muted);
  font-size: .6rem;
  font-weight: 600;
  line-height: 1;
  position: absolute;
  right: .25rem;
}

.sudoku-key.is-done {
  opacity: .45;
}

.sudoku-key.is-done .sudoku-key-count {
  color: var(--games-success, #14733c);
  font-size: .7rem;
}

/* Notes mode: digits move to their pencil-mark corner and the pad is outlined. */
.sudoku-controls.is-notes .sudoku-keypad {
  border-color: var(--sudoku-accent);
}

.sudoku-controls.is-notes .sudoku-key {
  align-items: var(--note-y);
  color: #596575;
  font-size: .85rem;
  justify-content: var(--note-x);
  padding: .3rem .35rem;
}

.sudoku-controls.is-notes .sudoku-key-count {
  display: none;
}

.sudoku-key[data-sudoku-number="1"], .sudoku-key[data-sudoku-number="4"], .sudoku-key[data-sudoku-number="7"] { --note-x: flex-start; }
.sudoku-key[data-sudoku-number="2"], .sudoku-key[data-sudoku-number="5"], .sudoku-key[data-sudoku-number="8"] { --note-x: center; }
.sudoku-key[data-sudoku-number="3"], .sudoku-key[data-sudoku-number="6"], .sudoku-key[data-sudoku-number="9"] { --note-x: flex-end; }
.sudoku-key[data-sudoku-number="1"], .sudoku-key[data-sudoku-number="2"], .sudoku-key[data-sudoku-number="3"] { --note-y: flex-start; }
.sudoku-key[data-sudoku-number="4"], .sudoku-key[data-sudoku-number="5"], .sudoku-key[data-sudoku-number="6"] { --note-y: center; }
.sudoku-key[data-sudoku-number="7"], .sudoku-key[data-sudoku-number="8"], .sudoku-key[data-sudoku-number="9"] { --note-y: flex-end; }

/* Status row and settings */
.sudoku-status {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: .25rem .75rem;
  min-height: var(--games-touch, 2.75rem);
}

.sudoku-message {
  color: var(--sudoku-muted);
  flex: 1 1 12rem;
}

.sudoku-message.is-error {
  color: var(--sudoku-error);
}

.sudoku-message.is-success {
  color: var(--games-success, #14733c);
}

.sudoku-save-status {
  margin-left: auto;
}

.sudoku-settings .games-menu-list {
  bottom: calc(100% + .35rem);
  top: auto;
}

.sudoku-setting {
  align-items: center;
  cursor: pointer;
  display: flex;
  gap: .6rem;
  min-height: var(--games-touch, 2.75rem);
  padding: .5rem .75rem;
  width: 16rem;
}

.sudoku-help {
  max-width: 58rem;
}

/* Results: the shared card lives in games.css; on phones it rises as a sheet. */
.sudoku-complete:not(.is-sheet) .sudoku-complete-close {
  display: none;
}

@media (min-width: 576px) {
  .sudoku-keypad {
    gap: .45rem;
  }

  .sudoku-tool {
    font-size: .82rem;
  }
}

@media (max-width: 575.98px) {
  /* Full-bleed on phones: the board keeps only the card's 8px gutter. */
  .sudoku-page {
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
  }

  .sudoku-page > .row {
    --bs-gutter-x: 0;
  }

  .sudoku-page .games-hero--compact {
    margin-bottom: .5rem !important;
    padding-bottom: .5rem;
  }

  .sudoku-page .games-bar {
    gap: .4rem;
  }

  .sudoku-card {
    box-shadow: none !important;
  }

  .sudoku-board-wrap {
    max-width: max(18.75rem, calc(100svh - 19rem));
  }

  .sudoku-complete.is-sheet {
    border-radius: 1rem 1rem 0 0;
    bottom: 0;
    box-shadow: 0 -.5rem 2rem rgba(20, 30, 45, .22);
    left: 0;
    margin: 0 !important;
    max-height: 85svh;
    overflow-y: auto;
    padding-bottom: calc(1rem + env(safe-area-inset-bottom));
    position: fixed;
    right: 0;
    z-index: 1045;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sudoku-cell,
  .sudoku-keypad {
    transition: none;
  }
}