/* Nonograms: ink on paper, clues in the margins. */

:root {
  --ink: #26313f;
  --paper: #ffffff;
  --grid: rgba(38, 49, 63, 0.16);
  --grid-strong: rgba(38, 49, 63, 0.5);
  --lit: rgba(47, 125, 224, 0.1);
  --wrong: #d23c2e;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --ink: #dfe6ef;
    --paper: #1f2226;
    --grid: rgba(255, 255, 255, 0.1);
    --grid-strong: rgba(255, 255, 255, 0.35);
    --lit: rgba(91, 155, 240, 0.14);
    --wrong: #ff6b5e;
  }
}
:root[data-theme='dark'] {
  --ink: #dfe6ef;
  --paper: #1f2226;
  --grid: rgba(255, 255, 255, 0.1);
  --grid-strong: rgba(255, 255, 255, 0.35);
  --lit: rgba(91, 155, 240, 0.14);
  --wrong: #ff6b5e;
}
:root[data-theme='hallows'] {
  --ink: #f0b03c;
  --paper: #1c1430;
  --grid: rgba(255, 226, 154, 0.1);
  --grid-strong: rgba(255, 226, 154, 0.35);
  --lit: rgba(240, 176, 60, 0.12);
}
:root[data-theme='hallows'] .hw-candle {
  display: none;
}
:root[data-theme='hallows'] .title-main {
  font-family: var(--font-display);
  letter-spacing: 0;
}

body {
  min-height: var(--app-height);
  padding: var(--safe-top) var(--safe-right) var(--safe-bottom) var(--safe-left);
}
#announce {
  margin: 0;
  top: 0;
}
.app {
  display: flex;
  flex-direction: column;
  height: calc(var(--app-height) - var(--safe-top) - var(--safe-bottom));
  min-height: 460px;
  max-width: 640px;
  margin: 0 auto;
}

/* ---------- Top bar ---------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px 6px;
}
.title-btn {
  appearance: none;
  border: 0;
  background: none;
  text-align: left;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 12px;
  color: var(--text);
  min-width: 0;
}
.title-btn:hover {
  background: var(--accent-soft);
}
.title-btn:focus-visible {
  outline: 3px solid var(--accent);
}
.title-main {
  display: block;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.title-main::after {
  content: ' ▾';
  font-size: 0.7em;
  color: var(--text-muted);
}
.title-sub {
  display: block;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.8rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.score {
  display: flex;
  gap: 8px;
}
.chip {
  min-width: 64px;
  text-align: center;
  padding: 6px 12px;
  border-radius: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
}
.chip small {
  display: block;
  font-size: 0.66rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}
.chip b {
  display: block;
  font-size: 1.3rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.chip.bump b {
  animation: bump 0.25s ease;
}
.chip.over b {
  color: var(--danger);
}
@keyframes bump {
  40% {
    transform: scale(1.25);
  }
}
.challenge {
  margin: 2px auto 0;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-weight: 700;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  align-self: center;
}
.challenge[hidden] {
  display: none;
}
.status {
  margin: 2px 16px 0;
  min-height: 2.6em;
  font-size: 0.9rem;
  color: var(--text-muted);
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  text-wrap: balance;
}

/* ---------- Board ---------- */

.stage {
  flex: 1 1 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 6px 10px;
}
.loading {
  margin: auto;
  color: var(--text-muted);
  font-weight: 600;
}
.ng {
  --cell: 28px;
  display: grid;
  grid-template-columns: auto auto;
  grid-template-rows: auto auto;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}
.ng-corner {
  grid-area: 1 / 1;
}
.ng-top {
  grid-area: 1 / 2;
  display: grid;
  grid-template-columns: repeat(var(--w), var(--cell));
  align-items: end;
}
.ng-left {
  grid-area: 2 / 1;
  display: grid;
  grid-template-rows: repeat(var(--h), var(--cell));
}
.ng-top .clue {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding-bottom: 4px;
  line-height: 1.1;
}
.ng-left .clue {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.35em;
  padding-right: 6px;
}
.clue {
  font-weight: 800;
  font-size: calc(var(--cell) * 0.46);
  color: var(--text);
  font-variant-numeric: tabular-nums;
  transition: opacity 0.2s ease;
}
.clue.lit {
  background: var(--lit);
  border-radius: 6px;
}
.clue.done {
  opacity: 0.3;
}
.ng-grid {
  grid-area: 2 / 2;
  display: grid;
  grid-template-columns: repeat(var(--w), var(--cell));
  grid-template-rows: repeat(var(--h), var(--cell));
  background: var(--paper);
  border: 2px solid var(--grid-strong);
  border-radius: 4px;
  box-shadow: 0 10px 24px -14px rgba(0, 0, 0, 0.35);
  cursor: pointer;
}
.cell {
  position: relative;
  box-shadow: inset -1px -1px 0 var(--grid);
}
.cell.r5 {
  box-shadow: inset -1px -1px 0 var(--grid), inset 0 -1.5px 0 var(--grid-strong);
}
.cell.c5 {
  box-shadow: inset -1px -1px 0 var(--grid), inset -1.5px 0 0 var(--grid-strong);
}
.cell.r5.c5 {
  box-shadow: inset -1.5px -1.5px 0 var(--grid-strong);
}
.cell.lit {
  background: var(--lit);
}
.cell.on::before {
  content: '';
  position: absolute;
  inset: 1.5px;
  border-radius: 3px;
  background: var(--ink);
  animation: ink 0.12s ease-out;
}
.cell.x::before,
.cell.x::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 50%;
  height: 2px;
  border-radius: 1px;
  background: var(--text-muted);
  opacity: 0.6;
}
.cell.x::before {
  transform: translate(-50%, -50%) rotate(45deg);
}
.cell.x::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}
.cell.wrong::before {
  background: var(--wrong);
}
.cell.wrong.x::before,
.cell.wrong.x::after {
  background: var(--wrong);
  opacity: 1;
}
.cell.hint {
  animation: hint 1.2s ease;
}
@keyframes ink {
  from {
    transform: scale(0.6);
  }
}
@keyframes hint {
  0%,
  60% {
    background: color-mix(in srgb, var(--accent) 45%, transparent);
  }
}
.ng.solved .cell.x::before,
.ng.solved .cell.x::after {
  opacity: 0;
}
.ng.solved .cell,
.ng.solved .ng-grid {
  box-shadow: none;
}
.ng.solved .cell.on::before {
  inset: 0;
  border-radius: 0;
}
.tools {
  display: flex;
  gap: 8px;
  align-items: center;
}
.tools .segmented {
  min-width: 200px;
}
@media (prefers-reduced-motion: reduce) {
  .cell.on::before,
  .cell.hint {
    animation: none;
  }
}

/* ---------- Toolbar ---------- */

.toolbar {
  display: flex;
  justify-content: center;
  gap: 6px;
  padding: 8px 8px 12px;
}
.tool {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  min-width: 64px;
  min-height: 52px;
  padding: 6px 8px;
  border-radius: 14px;
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
}
.tool svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.tool:hover:not(:disabled) {
  background: var(--accent-soft);
}
.tool:disabled {
  opacity: 0.38;
  cursor: default;
}
.tool:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 1px;
}

/* ---------- Menus ---------- */

.menu-list {
  display: grid;
  gap: 10px;
}
.menu-card {
  appearance: none;
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  text-align: left;
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.12s ease;
}
.menu-card:active {
  transform: scale(0.98);
}
.menu-card:focus-visible {
  outline: 3px solid var(--accent);
}
.menu-card .menu-icon {
  display: grid;
  place-items: center;
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
}
.menu-card b {
  display: block;
  font-size: 1.05rem;
}
.menu-card small {
  color: var(--text-muted);
}
.menu-row {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}
.menu-row .btn {
  flex: 1;
  padding-inline: 0.8em;
  white-space: nowrap;
}
.level-picker {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 6px;
}
.level-picker input {
  flex: 1;
  min-width: 0;
  font: inherit;
  font-size: 1.1rem;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}
.help ul {
  padding-left: 1.2em;
}


/* ---------- Pictures ---------- */

.gallery-count {
  margin: 0 0 12px;
  color: var(--text-muted);
  font-weight: 600;
}
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(78px, 1fr));
  gap: 8px;
}
.pic-tile {
  position: relative;
  appearance: none;
  display: grid;
  justify-items: center;
  align-content: center;
  gap: 4px;
  min-height: 104px;
  padding: 10px 4px 8px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  cursor: pointer;
}
.pic-tile:hover {
  border-color: var(--accent);
}
.pic-tile small {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.15;
}
.pic-tile.got small {
  color: var(--text);
}
.pic-no {
  position: absolute;
  top: 4px;
  left: 7px;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--text-muted);
}
.pic-q {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 8px;
  border: 2px dashed var(--border);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-muted);
}
.thumb path {
  fill: var(--ink);
}
.pic-tile.got {
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
}
.reveal {
  display: grid;
  place-items: center;
  margin: 4px 0 8px;
}
.reveal .thumb {
  padding: 10px;
  border-radius: 14px;
  background: var(--paper);
  box-shadow: 0 10px 24px -14px rgba(0, 0, 0, 0.4);
  animation: pop 0.4s ease;
}
@keyframes pop {
  from {
    transform: scale(0.6);
    opacity: 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  .reveal .thumb {
    animation: none;
  }
}