:root {
  color-scheme: light;
  --ink: #352018;
  --paper: #fff5ca;
  --accent: #f26b3a;
  --accent-2: #16b8b3;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  height: 100%;
  margin: 0;
  overscroll-behavior: none;
}

body {
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  background:
    radial-gradient(circle at 20% 18%, rgba(255, 244, 167, 0.8), transparent 28%),
    linear-gradient(135deg, #4dcbd6 0%, #f8d26a 48%, #f8834f 100%);
  color: var(--ink);
  font-family:
    "Trebuchet MS",
    "Microsoft JhengHei",
    system-ui,
    sans-serif;
}

.game-viewport {
  position: relative;
  width: 100vw;
  height: 100dvh;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  touch-action: none;
}

.loading-screen {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 28% 20%, rgba(255, 244, 167, 0.26), transparent 24%),
    linear-gradient(135deg, rgba(40, 138, 191, 0.88), rgba(244, 187, 92, 0.82));
  z-index: 10;
  transition: opacity 220ms ease, visibility 220ms ease;
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loading-card {
  min-width: min(88vw, 340px);
  padding: 26px 28px 22px;
  border: 4px solid #56301d;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 248, 215, 0.98), rgba(255, 223, 148, 0.96));
  box-shadow: 0 18px 48px rgba(54, 28, 12, 0.28);
  text-align: center;
}

.loading-spinner {
  width: 54px;
  height: 54px;
  margin: 0 auto 14px;
  border: 6px solid rgba(123, 68, 40, 0.2);
  border-top-color: #d96a34;
  border-right-color: #ffc74d;
  border-radius: 50%;
  animation: awawa-spin 0.8s linear infinite;
}

.loading-title {
  margin: 0 0 8px;
  color: #5b321d;
  font-size: 28px;
  font-weight: 900;
}

.loading-text {
  margin: 0;
  color: #6d4027;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.45;
}

@keyframes awawa-spin {
  to {
    transform: rotate(360deg);
  }
}

.game-shell {
  position: absolute;
  left: 0;
  top: 50%;
  width: 1280px;
  height: 720px;
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: #78d5dd;
  box-shadow: none;
  transform-origin: left center;
  transform: translateY(-50%) scale(var(--game-scale, 1));
  --safe-left: 20px;
  --safe-right: 20px;
  --safe-top: 20px;
  --safe-bottom: 18px;
}

canvas {
  display: block;
  width: 1280px;
  height: 720px;
  image-rendering: auto;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  touch-action: none;
}

.hud {
  position: absolute;
  top: var(--safe-top);
  left: var(--safe-left);
  right: var(--safe-right);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  pointer-events: none;
  z-index: 4;
}

.hud-actions {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  pointer-events: auto;
}

.icon-button {
  border: 3px solid #56301d;
  background: linear-gradient(#fff8d7, #ffc74d);
  box-shadow: 0 4px 0 #7c4328;
}

.score-text {
  margin: 0;
  color: #fff7d5;
  font-size: 40px;
  font-weight: 900;
  line-height: 1;
  text-shadow:
    0 3px 0 rgba(92, 46, 23, 0.95),
    0 0 12px rgba(92, 46, 23, 0.25);
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}

.score-text strong {
  font-size: 1em;
  font-variant-numeric: tabular-nums;
}

.icon-button {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  color: var(--ink);
  cursor: pointer;
  font-size: 30px;
  font-weight: 900;
  pointer-events: auto;
  touch-action: manipulation;
}

.icon-button span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  line-height: 1;
}

.settings-panel {
  position: absolute;
  inset: 0;
  padding: 16px;
  background: rgba(53, 32, 24, 0.34);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 160ms ease;
  z-index: 5;
}

.settings-panel.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.gameover-panel {
  position: absolute;
  inset: 0;
  padding: 16px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 180ms ease;
  z-index: 5;
}

.gameover-panel.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.settings-card {
  position: absolute;
  top: 50%;
  left: var(--settings-card-center, 50%);
  transform: translate(-50%, -50%);
  width: var(--settings-card-width, 360px);
  max-height: calc(100% - 32px);
  overflow: auto;
  padding: 20px 18px 18px;
  border: 4px solid #56301d;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 248, 215, 0.98), rgba(255, 223, 148, 0.96));
  box-shadow: 0 18px 48px rgba(54, 28, 12, 0.35);
}

.gameover-card {
  position: absolute;
  top: 50%;
  left: var(--settings-card-center, 50%);
  transform: translate(-50%, -50%);
  width: min(var(--settings-card-width, 360px), 430px);
  padding: 24px 22px 20px;
  border: 4px solid #56301d;
  border-radius: 22px;
  background:
    radial-gradient(circle at 50% 22%, rgba(255, 255, 255, 0.58), transparent 38%),
    linear-gradient(180deg, rgba(255, 248, 215, 0.985), rgba(255, 223, 148, 0.965));
  box-shadow:
    0 20px 46px rgba(54, 28, 12, 0.34),
    inset 0 2px 0 rgba(255, 255, 255, 0.38);
  text-align: center;
}

.gameover-kicker {
  margin: 0 0 8px;
  color: #8b5532;
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.gameover-card h2 {
  margin: 0 0 14px;
  color: #e9543d;
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1;
  text-shadow: 0 2px 0 rgba(255, 255, 255, 0.72);
}

.gameover-stats {
  display: grid;
  gap: 8px;
  margin: 0 0 16px;
}

.gameover-stats p {
  margin: 0;
  color: #5b321d;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 900;
}

.gameover-stats strong {
  font-size: 1.08em;
  font-variant-numeric: tabular-nums;
}

.gameover-hint {
  margin: 0 0 18px;
  color: #7b4428;
  font-size: clamp(16px, 2.2vw, 22px);
  font-weight: 800;
  line-height: 1.4;
}

.settings-card h2 {
  margin: 0 0 14px;
  font-size: clamp(22px, 3vw, 30px);
  text-align: center;
  -webkit-font-smoothing: antialiased;
}

.slider-row {
  display: grid;
  gap: 10px;
  margin-bottom: 16px;
  font-weight: 900;
  color: #5f351f;
}

.wood-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 28px;
  background: transparent;
}

.wood-slider:focus {
  outline: none;
}

.wood-slider::-webkit-slider-runnable-track {
  height: 14px;
  border: 3px solid rgba(91, 50, 29, 0.9);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(130, 84, 48, 0.92), rgba(91, 50, 29, 0.96)),
    repeating-linear-gradient(
      90deg,
      rgba(255, 224, 140, 0.18) 0 18px,
      rgba(255, 224, 140, 0.05) 18px 36px
    );
  box-shadow:
    inset 0 2px 0 rgba(255, 241, 196, 0.35),
    0 3px 0 rgba(74, 35, 13, 0.35);
}

.wood-slider::-moz-range-track {
  height: 14px;
  border: 3px solid rgba(91, 50, 29, 0.9);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(130, 84, 48, 0.92), rgba(91, 50, 29, 0.96)),
    repeating-linear-gradient(
      90deg,
      rgba(255, 224, 140, 0.18) 0 18px,
      rgba(255, 224, 140, 0.05) 18px 36px
    );
  box-shadow:
    inset 0 2px 0 rgba(255, 241, 196, 0.35),
    0 3px 0 rgba(74, 35, 13, 0.35);
}

.wood-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 26px;
  height: 26px;
  margin-top: -9px;
  border: 3px solid #7b4428;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 35%, #fff8d7 0 18%, #ffc74d 18% 72%, #d96a34 72% 100%);
  box-shadow:
    0 4px 0 rgba(91, 50, 29, 0.45),
    0 0 0 3px rgba(255, 248, 215, 0.4);
  cursor: grab;
}

.wood-slider::-moz-range-thumb {
  width: 26px;
  height: 26px;
  border: 3px solid #7b4428;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 35%, #fff8d7 0 18%, #ffc74d 18% 72%, #d96a34 72% 100%);
  box-shadow:
    0 4px 0 rgba(91, 50, 29, 0.45),
    0 0 0 3px rgba(255, 248, 215, 0.4);
  cursor: grab;
}

.settings-note {
  margin: 0 0 14px;
  color: #6d4027;
  font-size: 12px;
  line-height: 1.45;
}

.settings-actions {
  display: grid;
  gap: 10px;
}

.settings-cta {
  width: 100%;
  padding: 12px 16px;
  border: 3px solid #56301d;
  border-radius: 999px;
  background: linear-gradient(#fff8d7, #ffc74d);
  box-shadow: 0 4px 0 #7c4328;
  color: var(--ink);
  cursor: pointer;
  font-size: 18px;
  font-weight: 900;
  touch-action: manipulation;
  -webkit-font-smoothing: antialiased;
}

.settings-cta.secondary {
  background: linear-gradient(#fff7e5, #f4d996);
}

.hint {
  position: absolute;
  right: var(--safe-right);
  bottom: var(--safe-bottom);
  left: auto;
  transform: none;
  margin: 0;
  padding: 6px 12px;
  border: 2px solid rgba(80, 46, 30, 0.35);
  border-radius: 8px;
  background: rgba(255, 247, 205, 0.78);
  color: #5f351f;
  font-size: clamp(11px, 1.7vw, 15px);
  font-weight: 800;
  text-align: right;
  white-space: nowrap;
  pointer-events: none;
  max-width: min(46vw, 420px);
  -webkit-font-smoothing: antialiased;
}

@media (max-width: 760px) {
  .hud {
    gap: 10px;
  }

  .score-text {
    font-size: 34px;
  }

  .settings-card {
    width: min(calc(100% - 8px), var(--overlay-card-width, 340px));
  }

  .gameover-card {
    width: min(calc(100% - 8px), var(--overlay-card-width, 340px));
    padding: 22px 18px 18px;
  }

  .hud-actions {
    gap: 10px;
  }

  .icon-button {
    width: 62px;
    height: 62px;
    font-size: 26px;
  }

  .hint {
    max-width: min(52vw, 250px);
    font-size: 11px;
    white-space: normal;
  }
}

.game-viewport.handheld .hint {
  display: none;
}