.game-root,
.game-root * {
  box-sizing: border-box;
}

.game-root {
  background: #fffdf9;
  color: #314753;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.coloring-shell {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: linear-gradient(145deg, #fffefa, #f3f7f4);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.coloring-canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.coloring-canvas canvas {
  display: block;
}

.coloring-panel {
  position: absolute;
  top: max(14px, env(safe-area-inset-top));
  left: 50%;
  z-index: 4;
  width: min(820px, calc(100% - 390px));
  min-height: 66px;
  display: grid;
  place-items: center;
  border: 2px solid #fff8d9;
  border-radius: 16px;
  padding: 10px 22px;
  background: linear-gradient(100deg, #fff1bd, #fff9dd, #ffedb4);
  box-shadow: 0 10px 28px rgba(141, 110, 35, 0.09);
  transform: translateX(-50%);
  pointer-events: none;
}

.coloring-instruction {
  margin: 0;
  color: #304956;
  font-size: clamp(16px, 2vw, 25px);
  font-weight: 900;
  line-height: 1.25;
  text-align: center;
}

.coloring-instruction.is-updated {
  animation: coloring-text-in 260ms ease-out;
}

.coloring-bottom-controls {
  position: absolute;
  left: max(16px, env(safe-area-inset-left));
  right: max(16px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 14px;
}

.coloring-sounds {
  display: flex;
  flex: 0 0 auto;
  gap: 7px;
  max-width: 38%;
  scrollbar-width: none;
}

.coloring-sounds[hidden] {
  display: none;
}

.coloring-sounds::-webkit-scrollbar {
  display: none;
}

.coloring-choice {
  min-width: 48px;
  min-height: 46px;
  border: 2px solid rgba(255, 255, 255, 0.88);
  border-radius: 12px;
  padding: 0 12px;
  background: rgba(255, 255, 255, 0.9);
  color: #365466;
  font: 900 16px/1 system-ui, sans-serif;
  box-shadow: 0 8px 20px rgba(38, 58, 71, 0.11);
  cursor: pointer;
}

.coloring-choice[aria-pressed="true"] {
  background: #417e70;
  color: #ffffff;
}

.coloring-palette {
  min-width: 0;
  flex: 1 1 auto;
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(16px, 3.2vw, 54px);
  border: 2px solid rgba(255, 255, 255, 0.86);
  border-radius: 18px;
  padding: 9px 28px;
  background: linear-gradient(100deg, rgba(227, 240, 255, 0.94), rgba(242, 247, 255, 0.94), rgba(220, 238, 255, 0.94));
  box-shadow: 0 10px 28px rgba(38, 58, 71, 0.11);
  overflow-x: auto;
  scrollbar-width: none;
}

.coloring-palette::-webkit-scrollbar {
  display: none;
}

.coloring-swatch {
  width: 58px;
  height: 58px;
  flex: 0 0 auto;
  border: 5px solid #ffffff;
  border-radius: 50%;
  background: var(--swatch);
  box-shadow: 0 3px 10px rgba(38, 58, 71, 0.19);
  transition: transform 150ms ease, outline 150ms ease;
  cursor: pointer;
}

.coloring-swatch[aria-pressed="true"] {
  outline: 4px solid #315765;
  outline-offset: 2px;
  transform: scale(1.08);
}

.coloring-choice:focus-visible,
.coloring-swatch:focus-visible,
.coloring-replay:focus-visible,
.coloring-start-button:focus-visible {
  outline: 4px solid #eebf45;
  outline-offset: 3px;
}

.coloring-replay {
  position: absolute;
  top: max(92px, calc(env(safe-area-inset-top) + 82px));
  right: max(16px, env(safe-area-inset-right));
  z-index: 5;
  min-height: 48px;
  border: 2px solid rgba(255, 255, 255, 0.84);
  border-radius: 14px;
  padding: 0 20px;
  background: #417e70;
  color: #ffffff;
  font: 900 15px/1 system-ui, sans-serif;
  box-shadow: 0 9px 22px rgba(38, 58, 71, 0.16);
  cursor: pointer;
}

.coloring-replay[hidden] {
  display: none;
}

.coloring-start-overlay {
  position: absolute;
  inset: 0;
  z-index: 12;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(245, 241, 232, 0.72);
  backdrop-filter: blur(5px);
}

.coloring-start-overlay[hidden] {
  display: none;
}

.coloring-start-card {
  width: min(440px, calc(100vw - 32px));
  border: 2px solid rgba(255, 255, 255, 0.9);
  border-radius: 20px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 18px 46px rgba(38, 58, 71, 0.18);
  text-align: center;
}

.coloring-start-card h2 {
  margin: 0 0 10px;
  color: #315765;
  font-size: clamp(22px, 4vw, 30px);
}

.coloring-start-card p {
  margin: 0 0 20px;
  color: #4a6570;
  font-size: 16px;
  font-weight: 750;
  line-height: 1.4;
}

.coloring-start-button {
  min-height: 52px;
  border: 2px solid rgba(255, 255, 255, 0.84);
  border-radius: 14px;
  padding: 0 24px;
  background: #417e70;
  color: #ffffff;
  font: 900 17px/1 system-ui, sans-serif;
  box-shadow: 0 9px 22px rgba(38, 58, 71, 0.16);
  cursor: pointer;
}

.coloring-svg-measure {
  position: fixed;
  left: -100000px;
  top: -100000px;
  width: 1px;
  height: 1px;
  visibility: hidden;
  pointer-events: none;
}

.coloring-error {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 30px;
  background: #f3eee5;
  color: #8c4c47;
  font: 850 19px/1.4 system-ui, sans-serif;
  text-align: center;
}

.coloring-error small {
  display: block;
  max-width: 760px;
  margin-top: 12px;
  font: 700 13px/1.45 ui-monospace, monospace;
}

@keyframes coloring-text-in {
  from {
    opacity: 0.3;
    transform: translateY(-4px);
  }
}

@media (max-width: 900px) {
  .coloring-palette {
    gap: clamp(10px, 2.4vw, 24px);
    padding-inline: 16px;
  }

  .coloring-swatch {
    width: 50px;
    height: 50px;
  }
}

@media (max-width: 680px) {
  .coloring-panel {
    top: max(58px, calc(env(safe-area-inset-top) + 54px));
    left: 10px;
    right: 10px;
    width: auto;
    min-height: 54px;
    padding: 8px 10px;
    transform: none;
  }

  .coloring-instruction {
    font-size: clamp(14px, 4vw, 18px);
  }

  .coloring-bottom-controls {
    left: max(7px, env(safe-area-inset-left));
    right: max(7px, env(safe-area-inset-right));
    bottom: max(8px, env(safe-area-inset-bottom));
    gap: 6px;
  }

  .coloring-sounds {
    gap: 4px;
    max-width: 42%;
  }

  .coloring-choice {
    min-width: 38px;
    min-height: 38px;
    padding: 0 7px;
    font-size: 13px;
  }

  .coloring-palette {
    min-height: 68px;
    justify-content: flex-end;
    gap: 7px;
    padding: 7px 10px;
    transform: none;
  }

  .coloring-swatch {
    width: 43px;
    height: 43px;
    border-width: 3px;
  }

  .coloring-replay {
    top: max(120px, calc(env(safe-area-inset-top) + 112px));
    right: max(7px, env(safe-area-inset-right));
    min-height: 40px;
    padding: 0 12px;
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .coloring-instruction.is-updated {
    animation: none;
  }

  .coloring-swatch {
    transition: none;
  }
}