.svg-viewer {
  --svg-viewer-stage-bg: var(--color-bg);
  color: var(--color-text);
}

.svg-viewer__panel {
  display: grid;
  gap: 1rem;
}

.svg-viewer__workspace {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  align-items: stretch;
}

.svg-viewer__editor,
.svg-viewer__preview {
  min-width: 0;
  display: grid;
  grid-template-rows: auto minmax(22rem, 1fr) auto;
  gap: 0.75rem;
}

.svg-viewer__section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.svg-viewer__section-heading h3 {
  margin: 0;
  font-size: 1rem;
}

.svg-viewer__section-heading .tool-hint {
  margin: 0.3rem 0 0;
}

.svg-viewer__code-shell {
  min-height: 22rem;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--tool-radius);
  background: var(--color-bg);
}

.svg-viewer__line-numbers,
.svg-viewer__code {
  min-height: 22rem;
  margin: 0;
  padding: 0.8rem;
  font: 0.9rem/1.5 ui-monospace, SFMono-Regular, Consolas, monospace;
  white-space: pre;
}

.svg-viewer__line-numbers {
  min-width: 2.7rem;
  overflow: hidden;
  color: var(--color-muted);
  text-align: right;
  user-select: none;
  border-right: 1px solid var(--color-border);
}

.svg-viewer__code {
  width: 100%;
  resize: none;
  overflow: auto;
  border: 0;
  outline: 0;
  color: var(--color-text);
  background: transparent;
}

.svg-viewer__code:focus {
  box-shadow: inset 0 0 0 2px var(--color-focus-ring);
}

.svg-viewer__canvas {
  position: relative;
  min-height: 22rem;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--tool-radius);
  background-color: var(--svg-viewer-stage-bg);
  background-image: linear-gradient(45deg, color-mix(in srgb, var(--color-border) 30%, transparent) 25%, transparent 25%), linear-gradient(-45deg, color-mix(in srgb, var(--color-border) 30%, transparent) 25%, transparent 25%), linear-gradient(45deg, transparent 75%, color-mix(in srgb, var(--color-border) 30%, transparent) 75%), linear-gradient(-45deg, transparent 75%, color-mix(in srgb, var(--color-border) 30%, transparent) 75%);
  background-size: 1.25rem 1.25rem;
  background-position: 0 0, 0 0.625rem, 0.625rem -0.625rem, -0.625rem 0;
  touch-action: none;
}

.svg-viewer__stage {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  transform-origin: center;
  user-select: none;
}

.svg-viewer__stage > svg {
  display: block;
  width: min(88%, 32rem);
  height: min(88%, 32rem);
  max-width: none;
  max-height: none;
}

.svg-viewer__empty {
  max-width: 24rem;
  margin: 1rem;
  color: var(--color-muted);
  text-align: center;
}

.svg-viewer__zoom-controls,
.svg-viewer__preview-actions,
.svg-viewer__actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.svg-viewer__zoom-controls {
  flex-shrink: 0;
}

.svg-viewer__zoom-value {
  min-width: 3.8rem;
  color: var(--color-muted);
  font-size: 0.85rem;
  text-align: center;
}

.svg-viewer__preview-actions {
  justify-content: flex-end;
}

.svg-viewer__actions {
  justify-content: flex-end;
  padding-top: 0.25rem;
}

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

  .svg-viewer__editor,
  .svg-viewer__preview,
  .svg-viewer__code-shell,
  .svg-viewer__canvas,
  .svg-viewer__line-numbers,
  .svg-viewer__code {
    min-height: 18rem;
  }

  .svg-viewer__preview-actions,
  .svg-viewer__actions {
    justify-content: stretch;
  }

  .svg-viewer__preview-actions .btn,
  .svg-viewer__actions .btn {
    flex: 1 1 10rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .svg-viewer__stage {
    transition: none;
  }
}