:root {
  --bg: #f2efe8;
  --panel: #fffdf8;
  --text: #1f2a36;
  --muted: #5f6b78;
  --accent: #0a7f63;
  --accent-strong: #06614c;
  --accent-soft: #dbf2eb;
  --warning: #d8841c;
  --danger: #b23a2b;
  --border: #d9d0c2;
  --tile-face: #fff9ee;
  --tile-edge: #c8b28a;
  --board-a: #f7f2e7;
  --board-b: #efe6d5;
  --shadow: rgba(21, 30, 38, 0.18);
  --focus: #0b5fd4;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  overflow-x: hidden;
}

body {
  font-family: "Sora", "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 5%, #fff8eb 0 20%, transparent 38%),
    radial-gradient(circle at 90% 15%, #e7f6ee 0 16%, transparent 38%),
    linear-gradient(180deg, #f6f2e9, #ece4d4);
}

body[data-theme="dark"] {
  --bg: #12171b;
  --panel: #1a2329;
  --text: #e8edf2;
  --muted: #b8c0c9;
  --accent: #3ec79d;
  --accent-strong: #2ca985;
  --accent-soft: #173a31;
  --warning: #f3b25e;
  --tile-face: #26313a;
  --tile-edge: #3d4b56;
  --board-a: #172128;
  --board-b: #10181d;
  --shadow: rgba(0, 0, 0, 0.45);
  background:
    radial-gradient(circle at 16% 8%, #20363a 0 16%, transparent 34%),
    radial-gradient(circle at 88% 14%, #233042 0 16%, transparent 34%),
    linear-gradient(180deg, #10161b, #0a0f12);
}

body[data-contrast="high"] {
  --focus: #ffbf00;
  --border: #000;
}

.app-shell {
  width: min(1240px, 100%);
  margin: 0 auto;
  padding: 0.75rem;
  display: grid;
  gap: 0.65rem;
}

body[data-embed="1"] .app-shell {
  width: min(1160px, 100%);
  padding: 0.6rem;
  gap: 0.55rem;
}

body[data-embed="1"] .subtitle {
  display: none;
}

.panel {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: color-mix(in srgb, var(--panel) 92%, #ffffff 8%);
  box-shadow: 0 10px 26px -16px var(--shadow);
}

.topbar {
  padding: 0.7rem 0.85rem;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  align-items: end;
}

.kicker {
  margin: 0;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--muted);
  font-weight: 700;
}

h1 {
  margin: 0.2rem 0;
  font-size: clamp(1.35rem, 2.4vw, 2rem);
}

.subtitle {
  margin: 0;
  color: var(--muted);
}

.mode-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(110px, 1fr));
  gap: 0.75rem;
}

.mode-strip label,
.settings label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.85rem;
}

select,
button {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
  color: var(--text);
  font: inherit;
  min-height: 44px;
}

button {
  cursor: pointer;
  font-weight: 700;
  padding: 0.55rem 0.8rem;
  transition: transform 120ms ease, background 120ms ease, border-color 120ms ease;
}

button:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #fff;
  border-color: var(--accent-strong);
  background: linear-gradient(180deg, var(--accent), var(--accent-strong));
}

button:focus-visible,
select:focus-visible,
.tile:focus-visible,
input:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.hud-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(110px, 1fr));
  gap: 0.55rem;
}

.leaderboard-panel {
  padding: 0.6rem 0.85rem;
}

.leaderboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.55rem;
}

.leaderboard-header h2 {
  margin: 0;
}

.btn-compact {
  min-height: 34px;
  padding: 0.38rem 0.75rem;
}

.leaderboard-list li:first-child strong {
  color: var(--accent-strong);
}

.leaderboard-list small {
  color: var(--muted);
  display: inline-block;
  margin-left: 0.45rem;
}

.stat-card {
  padding: 0.55rem;
  text-align: center;
}

.stat-card span {
  display: block;
  font-size: 1.25rem;
  font-weight: 800;
}

.stat-card small {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.72rem;
}

.actions {
  display: grid;
  grid-template-columns: repeat(6, minmax(120px, 1fr));
  gap: 0.5rem;
  padding: 0.6rem;
}

.message {
  min-height: 44px;
  display: grid;
  place-items: center;
  padding: 0.55rem 0.8rem;
  background: linear-gradient(180deg, var(--accent-soft), color-mix(in srgb, var(--panel) 84%, var(--accent-soft) 16%));
  color: color-mix(in srgb, var(--text) 82%, var(--accent-strong) 18%);
  font-weight: 700;
}

.board-wrap {
  overflow-y: auto;
  overflow-x: hidden;
  padding: 1rem;
  min-height: min(72vh, 760px);
  max-height: calc(100vh - 1rem);
  background:
    linear-gradient(145deg, var(--board-a), var(--board-b));
}

body[data-embed="1"] .board-wrap {
  min-height: 0;
  padding: 0.6rem;
}

body[data-embed="1"] .board {
  max-width: 100%;
}

body[data-embed="1"] .meta-grid {
  display: none;
}

.board {
  position: relative;
  width: 1040px;
  height: 700px;
  margin: 0 auto;
}

.tile {
  position: absolute;
  width: 78px;
  height: 104px;
  border: 0;
  border-radius: 11px;
  background: transparent;
  --depth-edge-color: var(--tile-edge);
  --depth-shadow-color: var(--shadow);
  box-shadow: none;
  display: grid;
  place-items: center;
  padding: 0;
  user-select: none;
  transition: transform 120ms ease, box-shadow 120ms ease, opacity 120ms ease, filter 120ms ease, border-color 120ms ease;
  overflow: hidden;
  isolation: isolate;
  transform: none;
}

.tile::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 3;
  border-radius: inherit;
  pointer-events: none;
  box-shadow: none;
  border-right: var(--depth-edge-size, 1px) solid color-mix(in srgb, var(--tile-edge) 58%, transparent 42%);
  border-bottom: var(--depth-edge-size, 1px) solid color-mix(in srgb, var(--tile-edge) 58%, transparent 42%);
}


.tile-base,
.tile-symbol {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.tile-base {
  z-index: 1;
  object-fit: cover;
  pointer-events: none;
}

.tile-symbol-wrap {
  position: absolute;
  inset: 0;
  z-index: 2;
  padding: 15%;
  pointer-events: none;
  overflow: hidden;
}

.tile.bamboo-fullset .tile-symbol-wrap {
  padding: 18%;
}

.tile.bamboo-repeat1 .tile-symbol-wrap {
  padding: 13%;
}

.tile.wind-asset-tile .tile-symbol-wrap {
  padding: 23%;
}

.tile.jade-dot-asset-tile .tile-symbol-wrap {
  padding: 24%;
}

.tile.dragon-asset-tile .tile-symbol-wrap {
  padding: 24%;
}

.tile.season-asset-tile .tile-symbol-wrap {
  padding: 25%;
}

.tile.flower-asset-tile .tile-symbol-wrap {
  padding: 25%;
}

.tile.jade-dot-asset-tile .tile-base {
  transform: scale(1.05);
  transform-origin: center;
}

.tile-symbol {
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
  mix-blend-mode: multiply;
  opacity: 0.98;
}

.tile-symbol.bamboo-symbol-fullset {
  transform: scale(1);
  transform-origin: center;
  filter: saturate(1.18) contrast(1.1) brightness(0.96);
}

.tile-symbol.wind-symbol-asset {
  transform: scale(0.74);
  transform-origin: center;
}

.tile-symbol.jade-dot-symbol-asset {
  transform: scale(0.74);
  transform-origin: center;
}

.tile-symbol.dragon-symbol-asset {
  transform: scale(0.81);
  transform-origin: center;
}

.tile-symbol.season-symbol-asset {
  transform: scale(0.72);
  transform-origin: center;
}

.tile-symbol.flower-symbol-asset {
  transform: scale(0.83);
  transform-origin: center;
}

.bamboo-stack {
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-columns: repeat(var(--stem-cols, 3), 1fr);
  gap: 2px;
  align-items: center;
  justify-items: center;
}

.bamboo-stem-cell {
  width: 100%;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.bamboo-stem {
  width: 220%;
  height: 220%;
  object-fit: contain;
  transform: translateY(-1%);
  filter: saturate(1.08) contrast(1.05);
  mix-blend-mode: multiply;
}

.tile.bamboo-repeat1 .bamboo-stem {
  width: 250%;
  height: 250%;
}

body[data-tile-theme="minimal"] .tile {
  border-radius: 8px;
  --depth-edge-color: #9ea6b3;
  --depth-shadow-color: rgba(57, 69, 86, 0.2);
}

body[data-tile-theme="jade"] .tile {
  --depth-edge-color: #6ea791;
  --depth-shadow-color: rgba(15, 60, 49, 0.34);
}

body[data-tile-theme="wood"] .tile {
  --depth-edge-color: #8d643d;
  --depth-shadow-color: rgba(66, 43, 20, 0.38);
}

body[data-tile-theme="neon"] .tile {
  --depth-edge-color: #1d4ed8;
  --depth-shadow-color: rgba(34, 211, 238, 0.42);
}

body[data-tile-theme="ivory"] .tile {
  --depth-edge-color: #bca783;
  --depth-shadow-color: rgba(70, 54, 30, 0.3);
}

body[data-tile-theme="lacquer"] .tile {
  --depth-edge-color: #a53d30;
  --depth-shadow-color: rgba(92, 24, 18, 0.38);
}

body[data-tile-theme="slate"] .tile {
  --depth-edge-color: #617283;
  --depth-shadow-color: rgba(31, 43, 58, 0.36);
}

body[data-highlight-free="on"] .tile.free {
  box-shadow: none;
  outline: none;
}

body[data-highlight-free="on"] .tile.free:not(.selected)::after {
  display: none;
}

.tile.selected {
  transform: translateY(-3px);
  box-shadow: none;
  outline: none;
}

.tile.selected::after {
  content: "";
  position: absolute;
  inset: 2px;
  z-index: 4;
  display: block;
  border: 3px solid #0f9f83;
  border-radius: 10px;
  pointer-events: none;
}

.tile.hint {
  box-shadow: none;
  outline: 3px solid color-mix(in srgb, var(--warning) 82%, #8a5a12 18%);
  outline-offset: -2px;
  animation: hintPulse 1.1s ease-in-out infinite;
}

.tile.blocked {
  filter: none;
  opacity: 1;
}

.tile:not(.blocked) {
  box-shadow: none;
}

.tile.hint:not(.selected) {
  box-shadow: none;
}

.tile.invalid {
  animation: blockedShake 0.22s ease-in-out;
}

.tile.removed {
  transition: none !important;
  opacity: 0;
  transform: scale(0.98);
  visibility: hidden;
  pointer-events: none;
}

@keyframes hintPulse {
  0%,
  100% {
    outline-color: color-mix(in srgb, var(--warning) 84%, #8a5a12 16%);
  }
  50% {
    outline-color: color-mix(in srgb, var(--warning) 62%, #8a5a12 38%);
  }
}

@keyframes blockedShake {
  0%,
  100% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-3px);
  }
  40% {
    transform: translateX(3px);
  }
  60% {
    transform: translateX(-2px);
  }
  80% {
    transform: translateX(2px);
  }
}

body[data-highlight-free="off"] .tile.free {
  border-color: transparent;
}

body[data-highlight-free="off"] .tile.free:not(.selected)::after {
  display: none;
}

.meta-grid {
  display: none;
  grid-template-columns: repeat(4, minmax(200px, 1fr));
  gap: 0.75rem;
}

.meta-grid.is-open {
  display: grid;
}

.meta-toggle {
  justify-self: center;
  min-height: 40px;
  padding: 0.45rem 0.9rem;
}

.meta-grid .panel {
  padding: 1rem;
}

h2 {
  margin: 0 0 0.7rem;
  font-size: 1rem;
}

.settings {
  display: grid;
  gap: 0.45rem;
}

.settings input {
  margin-right: 0.45rem;
}

.list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}

.list li {
  display: flex;
  justify-content: space-between;
  gap: 0.65rem;
  border-bottom: 1px dashed var(--border);
  padding-bottom: 0.28rem;
}

.dialog-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100000;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgba(31, 42, 54, 0.42);
}

.dialog-backdrop[hidden] {
  display: none;
}

.win-dialog {
  width: min(420px, 100%);
  padding: 1.25rem;
  display: grid;
  gap: 0.85rem;
}

.win-dialog h2,
.win-dialog p {
  margin: 0;
}

.win-dialog label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-weight: 700;
}

.win-dialog input {
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.55rem 0.75rem;
  background: var(--panel);
  color: var(--text);
  font: inherit;
}

.win-summary {
  color: var(--muted);
}

.form-error {
  min-height: 1.2em;
  color: var(--danger);
  font-weight: 700;
}

.dialog-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}

body[data-animations="off"] * {
  transition: none !important;
  animation: none !important;
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}