:root {
  color-scheme: light;
  --color-cream: #fff6e9;
  --color-cream-deep: #f8e8d2;
  --color-paper: #fffdf8;
  --color-purple: #8f78dc;
  --color-purple-dark: #4e368f;
  --color-purple-action: #593d9f;
  --color-lavender: #eadcf9;
  --color-lavender-deep: #d9c8f3;
  --color-coral: #ff557a;
  --color-coral-soft: #ffe1e8;
  --color-amber: #ffdca8;
  --color-amber-deep: #e2a947;
  --color-mint: #dff2df;
  --color-sky: #dceeff;
  --color-ink: #3d3a52;
  --color-muted: #746b7d;
  --color-line: #c6b9d7;
  --shadow-soft: 0 10px 30px rgb(78 54 143 / 0.1);
  --shadow-card: 0 5px 0 rgb(78 54 143 / 0.12), 0 12px 24px rgb(78 54 143 / 0.08);
  --radius: 18px;
  --radius-small: 13px;
  --font-family: ui-rounded, "Arial Rounded MT Bold", "Trebuchet MS", system-ui, sans-serif;
  /* Reserves header, status, legend, and one tray tile row. */
  --game-chrome-height: 452px;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--color-cream);
}

body {
  min-width: 320px;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 8% 8%, rgb(255 213 148 / 0.42) 0 4rem, transparent 4.1rem),
    radial-gradient(circle at 92% 22%, rgb(217 200 243 / 0.42) 0 5rem, transparent 5.1rem),
    var(--color-cream);
  color: var(--color-ink);
  font-family: var(--font-family);
  -webkit-font-smoothing: antialiased;
}

button {
  min-height: 44px;
  border: 0;
  color: inherit;
  font: inherit;
  touch-action: manipulation;
}

button:not(:disabled) {
  cursor: pointer;
}

button:focus-visible,
[tabindex]:focus-visible {
  outline: 4px solid var(--color-purple-action);
  outline-offset: 3px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(1.45rem, 5vw, 2.2rem);
  letter-spacing: -0.035em;
  line-height: 1.05;
}

h2 {
  font-size: 1rem;
  letter-spacing: -0.01em;
}

[hidden] {
  display: none !important;
}

#app {
  width: 100%;
}

.screen {
  width: min(100%, 1120px);
  min-width: 0;
  margin: 0 auto;
  padding:
    max(18px, env(safe-area-inset-top))
    max(18px, env(safe-area-inset-right))
    max(28px, env(safe-area-inset-bottom))
    max(18px, env(safe-area-inset-left));
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.brand-lockup {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  width: 50px;
  height: 50px;
  flex: 0 0 auto;
  place-items: center;
  border: 2px solid var(--color-purple-dark);
  border-radius: 17px;
  background: var(--color-lavender);
  box-shadow: 3px 3px 0 var(--color-purple-dark);
  color: var(--color-purple-dark);
  font-size: 1.35rem;
  transform: rotate(-3deg);
}

.eyebrow {
  margin-bottom: 4px;
  color: var(--color-purple-dark);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.secondary-button,
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border: 2px solid var(--color-purple-dark);
  border-radius: 999px;
  background: var(--color-paper);
  box-shadow: 0 3px 0 var(--color-purple-dark);
  color: var(--color-purple-dark);
  font-weight: 900;
  transition: transform 140ms ease, box-shadow 140ms ease, background-color 140ms ease;
}

.secondary-button {
  min-height: 46px;
  padding: 0 18px;
}

.icon-button {
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  padding: 0;
  font-size: 1.25rem;
}

.secondary-button:hover,
.icon-button:hover {
  background: var(--color-lavender);
  transform: translateY(-1px);
}

.secondary-button:active,
.icon-button:active {
  box-shadow: 0 1px 0 var(--color-purple-dark);
  transform: translateY(2px);
}

.secondary-button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
  transform: none;
}

.level-select {
  padding-top: max(26px, env(safe-area-inset-top));
}

.level-header {
  margin-bottom: 20px;
}

.sound-toggle[aria-pressed="false"] {
  border-color: var(--color-line);
  box-shadow: 0 3px 0 var(--color-line);
  color: var(--color-muted);
}

.level-intro {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 22px;
  padding: 16px 18px;
  border: 1px solid rgb(115 85 198 / 0.12);
  border-radius: var(--radius);
  background: rgb(255 253 248 / 0.78);
  box-shadow: var(--shadow-soft);
}

.level-intro > p {
  max-width: 560px;
  color: var(--color-muted);
  font-size: 0.93rem;
  font-weight: 700;
  line-height: 1.45;
}

.version-selector {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.version-card {
  display: grid;
  min-width: 0;
  min-height: 78px;
  align-content: center;
  gap: 4px;
  padding: 12px 15px;
  border: 2px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-paper);
  box-shadow: 0 3px 0 var(--color-line);
  color: var(--color-ink);
  text-align: left;
  transition: transform 140ms ease, box-shadow 140ms ease, background-color 140ms ease;
}

.version-card:hover {
  background: var(--color-lavender);
  box-shadow: 0 5px 0 var(--color-purple-dark);
  transform: translateY(-1px);
}

.version-card.selected {
  border-color: var(--color-purple-dark);
  background: var(--color-lavender);
  box-shadow: 0 4px 0 var(--color-purple-dark);
}

.version-card-title {
  color: var(--color-purple-dark);
  font-size: 0.96rem;
  font-weight: 950;
}

.version-card-description {
  color: var(--color-muted);
  font-size: 0.78rem;
  font-weight: 750;
  line-height: 1.35;
}

.difficulty-key {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 7px;
}

.key-item,
.difficulty-badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 5px 9px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.difficulty-easy {
  color: #347046;
}

.difficulty-medium {
  color: #8b5a05;
}

.difficulty-hard {
  color: #a0375a;
}

.key-item.difficulty-easy,
.level-card.difficulty-easy .difficulty-badge {
  background: var(--color-mint);
}

.key-item.difficulty-medium,
.level-card.difficulty-medium .difficulty-badge {
  background: #fff0c7;
}

.key-item.difficulty-hard,
.level-card.difficulty-hard .difficulty-badge {
  background: var(--color-coral-soft);
}

.level-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.level-card {
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 132px;
  align-content: space-between;
  gap: 13px;
  padding: 15px;
  overflow: hidden;
  border: 2px solid var(--color-purple-dark);
  border-radius: var(--radius);
  background: var(--color-paper);
  box-shadow: var(--shadow-card);
  text-align: left;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.level-card::after {
  position: absolute;
  right: -22px;
  bottom: -32px;
  width: 78px;
  height: 78px;
  border-radius: 50%;
  background: var(--color-lavender);
  content: "";
  opacity: 0.65;
}

.level-card:hover {
  box-shadow: 0 8px 0 rgb(78 54 143 / 0.16), 0 16px 30px rgb(78 54 143 / 0.12);
  transform: translateY(-3px) rotate(-0.25deg);
}

.level-card:active {
  box-shadow: 0 2px 0 rgb(78 54 143 / 0.16);
  transform: translateY(3px);
}

.level-card.completed {
  background: linear-gradient(145deg, var(--color-paper), #f9f5ff);
}

.level-card-top,
.level-card-bottom {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.level-number {
  color: var(--color-purple-dark);
  font-size: 1.8rem;
  font-weight: 950;
  letter-spacing: -0.06em;
}

.level-size {
  color: var(--color-muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.level-action {
  color: var(--color-purple-dark);
  font-size: 0.75rem;
  font-weight: 900;
}

.completion-check {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #347046;
}

.game-shell {
  width: min(100%, 760px);
}

.game-header {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) 72px;
  width: min(92vw, 560px);
  margin: 0 auto 14px;
}

.game-header #back-button {
  justify-self: start;
}

.game-header #hearts {
  justify-self: end;
}

.game-heading {
  min-width: 0;
  text-align: center;
}

.game-heading h1 {
  white-space: nowrap;
}

.status-card,
.legend-panel,
.tray-panel {
  width: min(92vw, 560px);
  margin-inline: auto;
  border: 1px solid rgb(115 85 198 / 0.13);
  background: rgb(255 253 248 / 0.9);
  box-shadow: var(--shadow-soft);
}

.status-card {
  margin-bottom: 12px;
  padding: 12px 14px 14px;
  border-radius: 17px;
}

.status-row,
.progress-copy {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.game-meta {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  gap: 6px;
}

.meta-chip {
  display: inline-flex;
  align-items: center;
  min-height: 27px;
  padding: 4px 9px;
  border-radius: 999px;
  background: var(--color-lavender);
  color: var(--color-purple-dark);
  font-size: 0.72rem;
  font-weight: 900;
}

#hearts,
.hearts {
  display: flex;
  flex: 0 0 auto;
  gap: 3px;
  color: var(--color-coral);
  font-size: 1.12rem;
}

.heart {
  display: inline-grid;
  width: 24px;
  height: 24px;
  place-items: center;
  transform-origin: center;
}

.heart-empty {
  color: #cfc6d4;
  filter: grayscale(1);
  opacity: 0.8;
}

.heart-lost {
  animation: heart-loss 380ms ease both;
}

.legend-panel {
  margin-bottom: 12px;
  padding: 11px 12px 12px;
  border-radius: 17px;
}

.legend-panel h2 {
  margin: 0 3px 8px;
  color: var(--color-muted);
  font-size: 0.73rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

#category-legend {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(118px, 1fr));
  gap: 7px;
  overflow: visible;
  padding: 2px;
}

.category-chip {
  display: inline-flex;
  min-height: 30px;
  min-width: 0;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 5px 10px;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  background: var(--color-paper);
  color: var(--color-ink);
  font-size: 0.73rem;
  font-weight: 850;
  text-align: center;
  white-space: normal;
}

.category-count {
  display: inline-grid;
  min-width: 22px;
  min-height: 22px;
  place-items: center;
  padding: 2px 6px;
  border-radius: 999px;
  background: var(--color-lavender);
  color: var(--color-purple-dark);
  font-size: 0.7rem;
  font-weight: 950;
  line-height: 1;
}

.chip-dot {
  width: 12px;
  height: 12px;
  flex: 0 0 12px;
  border: 1px solid var(--color-purple-dark);
  border-radius: 50%;
  background: var(--color-lavender);
}

.chip-dot.category-tone-0 { background: #f3b1bd; border-color: #cb718b; }
.chip-dot.category-tone-1 { background: #f3cc78; border-color: #c99e3b; }
.chip-dot.category-tone-2 { background: #b1db87; border-color: #70a94a; }
.chip-dot.category-tone-3 { background: #77c9bf; border-color: #3c8e83; }
.chip-dot.category-tone-4 { background: #91b8e5; border-color: #4f7fb3; }
.chip-dot.category-tone-5 { background: #baa0dd; border-color: #7759a7; }

.board-wrap {
  display: grid;
  width: 100%;
  place-items: center;
}

#board {
  --grid-size: 3;
  display: grid;
  grid-template-columns: repeat(var(--grid-size), 1fr);
  grid-template-rows: repeat(var(--grid-size), minmax(0, 1fr));
  gap: 0;
  width: min(92vw, 560px);
  width: min(92vw, 560px, max(300px, calc(100dvh - var(--game-chrome-height))));
  aspect-ratio: 1;
  overflow: hidden;
  border: 3px solid var(--color-purple-dark);
  border-radius: clamp(13px, 4vw, 22px);
  background: var(--color-purple-dark);
  box-shadow: 0 8px 0 rgb(78 54 143 / 0.19), 0 18px 38px rgb(78 54 143 / 0.13);
}

.cell {
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 0;
  place-items: center;
  padding: 0;
  border: 1px solid var(--color-line);
  border-radius: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  transition: background-color 140ms ease, box-shadow 140ms ease, transform 140ms ease;
}

.cell.empty:hover {
  z-index: 2;
  background: #f8f1ff;
  box-shadow: none;
}

.cell.empty::after {
  display: none;
}

.cell.clue {
  background: var(--color-lavender);
  box-shadow: inset 0 0 0 2px rgb(115 85 198 / 0.08);
}

.cell.player-placed {
  background: var(--color-paper);
}

.cell[data-category="pets"] {
  --cell-category-bg: #ffc8d6;
  --cell-category-accent: #d85b7a;
}

.cell[data-category="wild"] {
  --cell-category-bg: #d7c4ff;
  --cell-category-accent: #7650c3;
}

.cell[data-category="birds"] {
  --cell-category-bg: #bcdfff;
  --cell-category-accent: #4d90c4;
}

.cell[data-category="sea"] {
  --cell-category-bg: #b7f0ea;
  --cell-category-accent: #3b9e98;
}

.cell[data-category="insects"] {
  --cell-category-bg: #fff0a6;
  --cell-category-accent: #b78900;
}

.cell[data-category="fruits"] {
  --cell-category-bg: #ffd0a8;
  --cell-category-accent: #c76c36;
}

.cell[data-category="vegetables"] {
  --cell-category-bg: #c4eea4;
  --cell-category-accent: #579839;
}

.cell[data-category="desserts"] {
  --cell-category-bg: #ffbdda;
  --cell-category-accent: #bd4f87;
}

.cell[data-category="drinks"] {
  --cell-category-bg: #c6bdff;
  --cell-category-accent: #6656bd;
}

.cell[data-category="road"] {
  --cell-category-bg: #bfcfff;
  --cell-category-accent: #5270c4;
}

.cell[data-category="airspace"] {
  --cell-category-bg: #aee8d7;
  --cell-category-accent: #3c9c79;
}

.cell[data-category="sports"] {
  --cell-category-bg: #ffd38a;
  --cell-category-accent: #c17d13;
}

.cell[data-category="music"] {
  --cell-category-bg: #e5b8f5;
  --cell-category-accent: #9b4eb4;
}

.cell[data-category="plants"] {
  --cell-category-bg: #b9e2a9;
  --cell-category-accent: #568d43;
}

.cell[data-category="weather"] {
  --cell-category-bg: #a9e3f5;
  --cell-category-accent: #3b91ae;
}

.cell[data-category="clothing"] {
  --cell-category-bg: #f0c6ad;
  --cell-category-accent: #b86840;
}

.cell[data-category="tools"] {
  --cell-category-bg: #d9d2b4;
  --cell-category-accent: #887b4d;
}

.cell[data-category="places"] {
  --cell-category-bg: #f4b8a9;
  --cell-category-accent: #bb6655;
}

.cell[data-category="technology"] {
  --cell-category-bg: #b4d9e7;
  --cell-category-accent: #4c8299;
}

.cell[data-category="symbols"] {
  --cell-category-bg: #f1c4f5;
  --cell-category-accent: #a14eaa;
}

.cell[data-category] {
  background: var(--cell-category-bg, var(--color-paper));
}

.cell.category-tone-0 {
  background: #f3b1bd;
}

.cell.category-tone-1 {
  background: #f3cc78;
}

.cell.category-tone-2 {
  background: #b1db87;
}

.cell.category-tone-3 {
  background: #77c9bf;
}

.cell.category-tone-4 {
  background: #91b8e5;
}

.cell.category-tone-5 {
  background: #baa0dd;
}

.cell.locked {
  cursor: default;
}

.cell-art {
  position: relative;
  z-index: 1;
  font-family: "Segoe UI Emoji", "Apple Color Emoji", sans-serif;
  font-size: 2.5rem;
  line-height: 1;
  filter: drop-shadow(0 2px 1px rgb(61 54 81 / 0.12));
}

#board[aria-colcount="3"] .cell-art {
  font-size: 3.75rem;
}

#board[aria-colcount="4"] .cell-art {
  font-size: 3.25rem;
}

#board[aria-colcount="6"] .cell-art {
  font-size: 2.5rem;
}

.region-top {
  border-top-width: 3px;
  border-top-color: var(--color-purple-dark);
}

.region-right {
  border-right-width: 3px;
  border-right-color: var(--color-purple-dark);
}

.region-bottom {
  border-bottom-width: 3px;
  border-bottom-color: var(--color-purple-dark);
}

.region-left {
  border-left-width: 3px;
  border-left-color: var(--color-purple-dark);
}

.cell.correct {
  z-index: 3;
  background: var(--color-mint);
  animation: settle 320ms cubic-bezier(0.2, 0.9, 0.3, 1.25);
}

.cell.wrong {
  z-index: 3;
  background: var(--color-coral-soft);
  box-shadow: inset 0 0 0 3px var(--color-coral);
  animation: shake 330ms ease;
}

#board.reset {
  animation: reset-pulse 420ms ease;
}

.tray-panel {
  margin-top: 18px;
  padding: 13px 13px 10px;
  border: 2px solid #bd7e20;
  border-radius: var(--radius);
  background: #fff0d4;
  box-shadow: 0 6px 0 rgb(189 126 32 / 0.2), 0 14px 30px rgb(126 80 16 / 0.1);
}

.tray-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
  margin: 0 3px 10px;
}

.tray-heading .eyebrow {
  color: #8b5a05;
}

.tray-heading h2 {
  color: #5f4216;
  font-size: 1.05rem;
}

.drag-hint {
  color: #7c581f;
  font-size: 0.7rem;
  font-weight: 850;
  white-space: nowrap;
}

#tray {
  display: flex;
  max-width: 100%;
  min-height: 70px;
  align-items: center;
  gap: 9px;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  padding: 4px 3px 10px;
  scrollbar-color: var(--color-amber-deep) transparent;
  scrollbar-width: thin;
}

.tray-tile {
  display: grid;
  width: 62px;
  height: 62px;
  min-height: 62px;
  flex: 0 0 62px;
  place-items: center;
  border: 2px solid #c4882e;
  border-radius: 17px;
  background: var(--color-paper);
  box-shadow: 0 4px 0 rgb(139 90 5 / 0.24);
  font-family: "Segoe UI Emoji", "Apple Color Emoji", sans-serif;
  font-size: 2rem;
  line-height: 1;
  transition: transform 140ms ease, box-shadow 140ms ease, background-color 140ms ease;
  user-select: none;
}

.game-shell[data-version="1"] .tray-tile {
  -webkit-user-drag: element;
}

.tray-tile:hover {
  transform: translateY(-2px) rotate(-2deg);
}

.tray-tile.selected {
  border-color: var(--color-purple-dark);
  background: var(--color-lavender);
  box-shadow: 0 0 0 3px var(--color-paper), 0 0 0 6px var(--color-purple);
  transform: translateY(-3px);
}

.tray-empty {
  display: grid;
  width: 100%;
  min-height: 54px;
  place-items: center;
  color: #7c581f;
  font-size: 0.82rem;
  font-weight: 850;
}

.game-controls {
  display: flex;
  width: min(92vw, 560px);
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 16px auto 0;
}

#toast {
  position: fixed;
  z-index: 30;
  right: 50%;
  bottom: max(20px, env(safe-area-inset-bottom));
  max-width: min(90vw, 420px);
  min-height: 42px;
  padding: 10px 16px;
  border: 2px solid var(--color-purple-dark);
  border-radius: 999px;
  background: var(--color-ink);
  box-shadow: 0 6px 20px rgb(61 54 81 / 0.24);
  color: white;
  font-size: 0.85rem;
  font-weight: 850;
  opacity: 0;
  pointer-events: none;
  text-align: center;
  transform: translate(50%, 14px);
  transition: opacity 160ms ease, transform 160ms ease;
}

#toast[data-visible="true"] {
  opacity: 1;
  transform: translate(50%, 0);
  animation: toast-life 2400ms ease both;
}

dialog {
  width: min(90vw, 420px);
  padding: 0;
  overflow: visible;
  border: 3px solid var(--color-purple-dark);
  border-radius: 26px;
  background: var(--color-paper);
  box-shadow: 0 12px 0 rgb(78 54 143 / 0.2), 0 34px 70px rgb(61 54 81 / 0.3);
  color: var(--color-ink);
}

dialog:not([open]) {
  display: none;
}

dialog::backdrop {
  background: rgb(61 54 81 / 0.45);
  backdrop-filter: blur(3px);
}

dialog.dialog-fallback {
  position: fixed;
  z-index: 40;
  inset: 0;
  margin: auto;
  box-shadow: 0 0 0 100vmax rgb(61 54 81 / 0.45), 0 12px 0 rgb(78 54 143 / 0.2), 0 34px 70px rgb(61 54 81 / 0.3);
}

#placement-dialog {
  width: min(92vw, 560px);
  max-width: min(92vw, 560px);
  max-height: min(86dvh, 600px);
  overflow: auto;
  border: 0;
  background: transparent;
  box-shadow: none;
}

#placement-dialog::backdrop {
  background: rgb(61 54 81 / 0.18);
  backdrop-filter: blur(1px);
}

.placement-card {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 14px;
  overflow: hidden;
  border: 3px solid var(--color-purple-dark);
  border-radius: 24px;
  background: rgb(255 253 248 / 0.58);
  backdrop-filter: blur(1px);
  box-shadow: var(--shadow-card), 0 28px 60px rgb(61 54 81 / 0.2);
  animation: placement-pop 220ms ease-out both;
}

.placement-card::before {
  position: absolute;
  top: -44px;
  right: -20px;
  width: 112px;
  height: 112px;
  border-radius: 50%;
  background: var(--color-lavender);
  content: "";
  opacity: 0.8;
}

.placement-card h2,
.placement-card p {
  position: relative;
  z-index: 1;
}

.placement-card h2 {
  color: var(--color-purple-dark);
  font-size: 1.5rem;
}

.placement-card > p {
  color: var(--color-muted);
  line-height: 1.4;
}

.placement-card .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.placement-options {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(92px, 1fr));
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.placement-tile {
  display: grid;
  min-width: 0;
  min-height: 82px;
  align-content: center;
  justify-items: center;
  gap: 0;
  padding: 8px 4px;
  border: 2px solid #c4882e;
  border-radius: 17px;
  background: var(--color-paper);
  box-shadow: 0 4px 0 rgb(139 90 5 / 0.2);
  color: var(--color-ink);
  text-align: center;
  transition: transform 140ms ease, box-shadow 140ms ease, background-color 140ms ease, border-color 140ms ease;
}

.placement-tile:hover {
  border-color: var(--color-purple-dark);
  background: var(--color-lavender);
  box-shadow: 0 5px 0 rgb(78 54 143 / 0.2);
  transform: translateY(-2px) rotate(-1deg);
}

.placement-tile-art {
  display: grid;
  min-height: 44px;
  place-items: center;
  font-family: "Segoe UI Emoji", "Apple Color Emoji", sans-serif;
  font-size: 2.25rem;
  line-height: 1;
}

.placement-tile-label {
  max-width: 100%;
  overflow: hidden;
  color: var(--color-purple-dark);
  font-size: 0.78rem;
  font-weight: 950;
  line-height: 1.15;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.placement-tile-category {
  max-width: 100%;
  overflow: hidden;
  color: var(--color-muted);
  font-size: 0.67rem;
  font-weight: 850;
  line-height: 1.15;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.version-card:focus-visible,
.placement-tile:focus-visible {
  outline: 4px solid var(--color-purple-action);
  outline-offset: 3px;
  box-shadow: 0 0 0 2px var(--color-paper), 0 4px 0 var(--color-purple-dark);
}

.dialog-is-open {
  overflow: hidden;
}

.dialog-is-open #app {
  pointer-events: none;
  user-select: none;
}

.completion-card {
  position: relative;
  display: grid;
  gap: 14px;
  padding: 30px 24px 24px;
  overflow: hidden;
  border-radius: 22px;
  text-align: center;
}

.completion-card::before,
.completion-card::after {
  position: absolute;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  content: "";
  opacity: 0.55;
}

.completion-card::before {
  top: -48px;
  left: -28px;
  background: var(--color-amber);
}

.completion-card::after {
  right: -35px;
  bottom: -48px;
  background: var(--color-lavender-deep);
}

.completion-icon {
  position: relative;
  z-index: 1;
  font-size: 3.2rem;
  line-height: 1;
  animation: celebrate 480ms cubic-bezier(0.2, 0.9, 0.3, 1.25);
}

.completion-card h2 {
  position: relative;
  z-index: 1;
  color: var(--color-purple-dark);
  font-size: 1.75rem;
}

.completion-card p {
  position: relative;
  z-index: 1;
  color: var(--color-muted);
  line-height: 1.45;
}

.dialog-actions {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
  margin-top: 4px;
}

.dialog-button {
  min-height: 48px;
  padding: 10px 14px;
  border: 2px solid var(--color-purple-dark);
  border-radius: 14px;
  background: var(--color-paper);
  color: var(--color-purple-dark);
  font-weight: 900;
}

.dialog-button.primary {
  background: var(--color-purple-action);
  color: white;
}

.dialog-button.primary:focus-visible {
  outline: 4px solid var(--color-coral);
  outline-offset: 3px;
  box-shadow: 0 0 0 2px var(--color-paper);
}

.dialog-button:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

.fatal-card {
  width: min(92vw, 620px);
  margin: 12vh auto 0;
  padding: 26px;
  border: 3px solid var(--color-purple-dark);
  border-radius: var(--radius);
  background: var(--color-paper);
  box-shadow: var(--shadow-card);
  text-align: center;
}

.fatal-card h1 {
  margin-bottom: 12px;
}

.fatal-card p {
  color: var(--color-muted);
  line-height: 1.5;
}

@keyframes settle {
  0% { transform: scale(0.74); }
  65% { transform: scale(1.08); }
  100% { transform: scale(1); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  55% { transform: translateX(5px); }
  78% { transform: translateX(-3px); }
}

@keyframes heart-loss {
  0% { opacity: 1; transform: scale(1); }
  45% { opacity: 1; transform: scale(1.35) rotate(-10deg); }
  100% { opacity: 0.55; transform: scale(0.9); }
}

@keyframes reset-pulse {
  0%, 100% { filter: none; transform: scale(1); }
  50% { filter: saturate(0.55); transform: scale(0.985); }
}

@keyframes celebrate {
  0% { opacity: 0; transform: scale(0.55) rotate(-12deg); }
  75% { opacity: 1; transform: scale(1.12) rotate(4deg); }
  100% { transform: scale(1) rotate(0); }
}

@keyframes placement-pop {
  0% { opacity: 0; transform: translateY(8px) scale(0.98); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes toast-life {
  0% { opacity: 0; transform: translate(50%, 14px); }
  8%, 82% { opacity: 1; transform: translate(50%, 0); }
  100% { opacity: 0; transform: translate(50%, 8px); }
}

@media (max-width: 760px) {
  .version-selector {
    grid-template-columns: 1fr;
  }

  .level-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .level-intro {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .difficulty-key {
    justify-content: flex-start;
  }
}

@media (max-width: 419px) {
  .screen {
    padding-right: max(12px, env(safe-area-inset-right));
    padding-left: max(12px, env(safe-area-inset-left));
  }

  .brand-mark {
    width: 44px;
    height: 44px;
    border-radius: 14px;
  }

  .level-header {
    align-items: flex-start;
  }

  #level-sound {
    width: 46px;
    padding: 0;
  }

  #level-sound span:last-child {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .level-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 11px;
  }

  .level-card {
    min-height: 118px;
    padding: 13px;
    border-radius: 17px;
  }

  .level-number {
    font-size: 1.55rem;
  }

  .game-shell {
    padding-top: max(12px, env(safe-area-inset-top));
  }

  .game-header {
    margin-bottom: 9px;
  }

  .game-header .icon-button {
    width: 44px;
    height: 44px;
  }

  .status-card {
    margin-bottom: 9px;
    padding: 9px 11px 11px;
  }

  .legend-panel {
    margin-bottom: 9px;
    padding: 8px 9px 9px;
  }

  .category-chip {
    min-height: 28px;
    padding-block: 4px;
  }

  .tray-panel {
    margin-top: 14px;
    padding: 10px 10px 7px;
  }

  .tray-tile {
    width: 56px;
    height: 56px;
    min-height: 56px;
    flex-basis: 56px;
    border-radius: 15px;
    font-size: 1.8rem;
  }

  .placement-options {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .placement-card {
    padding: 17px 14px;
  }

  .placement-tile {
    min-height: 76px;
    padding-inline: 5px;
  }

  .game-controls {
    margin-top: 13px;
  }
}

@media (min-width: 980px) {
  .level-select {
    padding-top: 44px;
  }

  .level-grid {
    gap: 17px;
  }

  .level-card {
    min-height: 142px;
    padding: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }

  .level-card:hover,
  .tray-tile:hover,
  .tray-tile.selected,
  .placement-tile:hover,
  .secondary-button:hover,
  .icon-button:hover {
    transform: none;
  }

  .placement-card {
    animation: none;
  }

  #toast[data-visible="true"] {
    opacity: 1;
    transform: translate(50%, 0);
    animation: none;
  }
}