.coloring-workspace {
  --coloring-ink: #2f2a2e;
  --coloring-muted: #8a8189;
  --coloring-border: #e5dacc;
  --coloring-paper: #faf5ee;
  --coloring-coral: #f2604f;
  --coloring-coral-dark: #d14b3b;
  position: fixed;
  inset: 0;
  z-index: 5000;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  color: var(--coloring-ink);
  background:
    radial-gradient(circle at 12% 12%, rgba(111, 198, 239, 0.14), transparent 28%),
    radial-gradient(circle at 88% 82%, rgba(242, 96, 79, 0.12), transparent 30%),
    var(--coloring-paper);
  font-family: 'Nunito', sans-serif;
  overscroll-behavior: none;
}

.coloring-workspace[hidden],
.coloring-dialog[hidden] {
  display: none !important;
}

body.coloring-open {
  overflow: hidden !important;
  touch-action: manipulation;
}

.coloring-header {
  position: relative;
  z-index: 4;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  min-height: 68px;
  padding: calc(10px + env(safe-area-inset-top)) 14px 10px;
  border-bottom: 1px solid var(--coloring-border);
  background: rgba(250, 245, 238, 0.94);
  backdrop-filter: blur(12px);
}

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

.coloring-heading h2 {
  margin: 0;
  overflow: hidden;
  color: var(--coloring-ink);
  font-family: 'Baloo 2', cursive;
  font-size: clamp(16px, 4vw, 20px);
  font-weight: 800;
  line-height: 1.15;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.coloring-heading p {
  margin: 2px 0 0;
  color: var(--coloring-muted);
  font-size: 11px;
  font-weight: 800;
}

.coloring-heading p[data-state='saved'] { color: #3b8b62; }
.coloring-heading p[data-state='error'] { color: var(--coloring-coral-dark); }

.coloring-header-actions,
.coloring-zoom,
.coloring-tool-row,
.coloring-size-picker {
  display: flex;
  align-items: center;
}

.coloring-header-actions { gap: 8px; }

.coloring-icon-button,
.coloring-tool-button,
.coloring-size-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  margin: 0;
  padding: 0;
  border: 1.5px solid var(--coloring-border);
  color: #5f5761;
  background: #fff;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.coloring-icon-button {
  width: 44px;
  height: 44px;
  border-radius: 50%;
}

.coloring-icon-button:hover,
.coloring-tool-button:hover,
.coloring-size-button:hover { background: #fffaf5; }

.coloring-icon-button:focus-visible,
.coloring-tool-button:focus-visible,
.coloring-size-button:focus-visible,
.coloring-swatch:focus-visible,
.coloring-finish-button:focus-visible,
.coloring-dialog button:focus-visible {
  outline: 3px solid rgba(74, 157, 224, 0.45);
  outline-offset: 2px;
}

.coloring-icon-button:disabled,
.coloring-tool-button:disabled {
  cursor: default;
  opacity: 0.35;
}

.coloring-viewport {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  cursor: crosshair;
  touch-action: none;
  user-select: none;
}

.coloring-viewport[data-tool='pan'] { cursor: grab; }
.coloring-viewport[data-tool='pan'][data-panning='true'] { cursor: grabbing; }
.coloring-viewport[data-busy='true'] { cursor: progress; }

.coloring-stage {
  position: absolute;
  top: 50%;
  left: 50%;
  overflow: hidden;
  border-radius: 7px;
  background: #fff;
  box-shadow: 0 8px 34px rgba(47, 42, 46, 0.2);
  transform-origin: center;
  will-change: transform;
}

.coloring-stage canvas,
.coloring-stage img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}

#coloringPaintCanvas { touch-action: none; }

#coloringLineArt {
  pointer-events: none;
  user-select: none;
  mix-blend-mode: multiply;
}

#coloringSourceCanvas { display: none; }

.coloring-zoom {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 3;
  flex-direction: column;
  gap: 8px;
}

.coloring-zoom .coloring-icon-button {
  box-shadow: 0 2px 8px rgba(47, 42, 46, 0.12);
}

.coloring-zoom-label {
  min-width: 44px;
  padding: 3px 7px;
  border-radius: 999px;
  color: var(--coloring-muted);
  background: rgba(250, 245, 238, 0.9);
  font-size: 11px;
  font-weight: 900;
  text-align: center;
}

.coloring-loading {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: grid;
  place-items: center;
  padding: 24px;
  color: var(--coloring-ink);
  background: rgba(250, 245, 238, 0.88);
  font-family: 'Baloo 2', cursive;
  font-size: 18px;
  font-weight: 800;
  text-align: center;
}

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

.coloring-toolbar {
  position: relative;
  z-index: 4;
  flex: 0 0 auto;
  padding: 9px 14px calc(12px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--coloring-border);
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 -6px 20px rgba(47, 42, 46, 0.07);
  backdrop-filter: blur(12px);
}

.coloring-toolbar-inner {
  display: flex;
  flex-direction: column;
  gap: 9px;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
}

.coloring-palette {
  display: grid;
  grid-auto-flow: column;
  grid-template-rows: 42px;
  grid-auto-columns: 42px;
  justify-content: start;
  gap: 9px;
  overflow-x: auto;
  padding: 5px 4px 8px;
  scrollbar-width: none;
  touch-action: pan-x;
  overscroll-behavior-x: contain;
  -webkit-overflow-scrolling: touch;
}

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

.coloring-swatch {
  width: 38px;
  height: 38px;
  margin: 0;
  padding: 0;
  border: 2px solid rgba(47, 42, 46, 0.12);
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(47, 42, 46, 0.18);
  cursor: pointer;
  touch-action: pan-x;
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.coloring-swatch[aria-pressed='true'] {
  transform: scale(1.08);
  box-shadow: 0 0 0 3px #fff, 0 0 0 6px var(--swatch-color);
}

.coloring-palette-hint {
  margin: -2px 0 0;
  color: var(--coloring-muted);
  font-size: 11px;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
}

.coloring-tone-picker {
  position: absolute;
  bottom: calc(100% + 9px);
  left: 50%;
  z-index: 8;
  display: flex;
  align-items: center;
  gap: 7px;
  width: min(calc(100% - 20px), 430px);
  padding: 10px 12px;
  box-sizing: border-box;
  border: 1px solid var(--coloring-border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 10px 30px rgba(47, 42, 46, 0.2);
  transform: translateX(-50%);
}

.coloring-tone-picker[hidden] { display: none !important; }

.coloring-tone-picker strong {
  flex: 0 0 auto;
  color: var(--coloring-muted);
  font-size: 10px;
  font-weight: 900;
}

.coloring-tone-options {
  display: grid;
  grid-template-columns: repeat(7, minmax(30px, 1fr));
  flex: 1 1 auto;
  gap: 5px;
  min-width: 0;
}

.coloring-tone-swatch {
  width: 100%;
  min-width: 30px;
  max-width: none;
  height: 36px;
  margin: 0;
  padding: 0;
  border: 2px solid rgba(47, 42, 46, 0.12);
  border-radius: 12px;
  box-shadow: none;
  cursor: pointer;
}

.coloring-tone-swatch[aria-pressed='true'] {
  border-color: #fff;
  outline: 3px solid var(--coloring-ink);
  outline-offset: 0;
}

.coloring-tool-row {
  flex-wrap: wrap;
  gap: 8px;
}

.coloring-tool-button {
  width: 50px;
  height: 50px;
  border-radius: 15px;
}

.coloring-tool-button[aria-pressed='true'] {
  border-color: var(--coloring-coral);
  color: var(--coloring-coral-dark);
  background: #fef0ed;
}

.coloring-size-picker {
  gap: 3px;
  padding: 4px;
  border-radius: 999px;
  background: #f1eae0;
}

.coloring-size-button {
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 50%;
  background: transparent;
}

.coloring-size-button[aria-pressed='true'] {
  background: #fff;
  box-shadow: 0 1px 4px rgba(47, 42, 46, 0.15);
}

.coloring-size-dot {
  display: block;
  border: 1px solid rgba(47, 42, 46, 0.14);
  border-radius: 50%;
  background: var(--active-color, var(--coloring-coral));
}

.coloring-size-button[data-size='small'] .coloring-size-dot { width: 9px; height: 9px; }
.coloring-size-button[data-size='medium'] .coloring-size-dot { width: 15px; height: 15px; }
.coloring-size-button[data-size='large'] .coloring-size-dot { width: 22px; height: 22px; }

.coloring-tool-spacer { flex: 1 1 16px; }

.coloring-finish-button {
  min-width: 112px;
  max-width: none;
  width: auto;
  margin: 0;
  min-height: 50px;
  padding: 0 22px;
  border: 0;
  border-radius: 15px;
  color: #fff;
  background: var(--coloring-coral);
  box-shadow: 0 4px 0 var(--coloring-coral-dark);
  font-family: 'Baloo 2', cursive;
  font-size: 17px;
  font-weight: 800;
  cursor: pointer;
}

.coloring-finish-button:active {
  transform: translateY(4px);
  box-shadow: 0 0 0 var(--coloring-coral-dark);
}

.coloring-dialog {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  overflow-y: auto;
  padding: 20px;
  background: rgba(47, 42, 46, 0.48);
  backdrop-filter: blur(4px);
}

.coloring-dialog-card {
  width: min(100%, 380px);
  padding: 24px;
  box-sizing: border-box;
  border: 1px solid var(--coloring-border);
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 20px 60px rgba(47, 42, 46, 0.25);
  text-align: center;
}

.coloring-dialog-card h3 {
  margin: 0 0 6px;
  color: var(--coloring-ink);
  font-family: 'Baloo 2', cursive;
  font-size: 22px;
  line-height: 1.15;
}

.coloring-dialog-card p {
  margin: 0 0 18px;
  color: var(--coloring-muted);
  font-size: 13px;
  font-weight: 700;
}

.coloring-dialog-card img {
  display: block;
  width: 180px;
  height: 230px;
  margin: 0 auto 14px;
  object-fit: contain;
  border: 1px solid var(--coloring-border);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 3px 10px rgba(47, 42, 46, 0.08);
}

.coloring-dialog-actions {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.coloring-dialog-actions.is-row { flex-direction: row; }

.coloring-dialog-actions button {
  flex: 1 1 0;
  max-width: none;
  width: auto;
  margin: 0;
  min-height: 48px;
  padding: 11px 16px;
  border: 1.5px solid var(--coloring-border);
  border-radius: 14px;
  color: var(--coloring-ink);
  background: #fff;
  font-family: 'Nunito', sans-serif;
  font-size: 14px;
  font-weight: 900;
  cursor: pointer;
}

.coloring-dialog-actions .is-primary {
  border-color: var(--coloring-coral);
  color: #fff;
  background: var(--coloring-coral);
  box-shadow: 0 3px 0 var(--coloring-coral-dark);
  font-family: 'Baloo 2', cursive;
  font-size: 16px;
}

.coloring-dialog-actions .is-download {
  border-color: #4a9de0;
  color: #fff;
  background: #4a9de0;
  box-shadow: 0 3px 0 #3a7eb5;
}

@media (max-width: 560px) {
  .coloring-header {
    grid-template-columns: 44px minmax(0, 1fr) auto;
    gap: 7px;
    padding-right: 10px;
    padding-left: 10px;
  }

  .coloring-header-actions { gap: 5px; }
  .coloring-header-actions .coloring-icon-button { width: 40px; height: 40px; }
  .coloring-toolbar { padding-right: 10px; padding-left: 10px; }
  .coloring-tool-row { gap: 6px; }
  .coloring-tool-button { width: 46px; height: 46px; }
  .coloring-size-button { width: 38px; height: 38px; }
  .coloring-finish-button { min-width: 96px; padding: 0 16px; }
}

@media (max-width: 410px) {
  .coloring-heading p { display: none; }
  .coloring-tool-row {
    display: grid;
    grid-template-columns: repeat(5, 46px) minmax(0, 1fr);
    gap: 6px;
  }
  .coloring-tool-row > [data-coloring-tool]:nth-of-type(1) { grid-column: 1; }
  .coloring-tool-row > [data-coloring-tool]:nth-of-type(2) { grid-column: 2; }
  .coloring-tool-row > [data-coloring-tool]:nth-of-type(3) { grid-column: 3; }
  .coloring-tool-row > [data-coloring-tool]:nth-of-type(4) { grid-column: 4; }
  #coloringClearBtn { grid-column: 5; grid-row: 1; }
  .coloring-size-picker { grid-column: 1 / 4; grid-row: 2; justify-content:space-around; }
  .coloring-tool-spacer { display: none; }
  .coloring-finish-button { grid-column: 4 / -1; grid-row: 2; width: 100%; }
  .coloring-tone-picker { gap:5px; padding:9px; }
  .coloring-tone-picker strong { display:none; }
  .coloring-tone-options { grid-template-columns:repeat(7, minmax(34px, 1fr)); }
}

@media (max-width: 350px) {
  .coloring-tool-row {
    grid-template-columns: repeat(5, 42px) minmax(0, 1fr);
    gap: 5px;
  }
  .coloring-tool-button { width: 42px; height: 42px; }
  .coloring-size-button { width: 34px; height: 34px; }
}

@media (prefers-reduced-motion: reduce) {
  .coloring-swatch,
  .coloring-finish-button { transition: none; }
}