.viewport {
  --font-mono: ui-monospace, 'JetBrains Mono', SFMono-Regular, Menlo, Consolas, monospace;
  --font-size: 12.5px;

  --bg-sticky: #181a20;
  --bg-hover: #1a1d23;

  --token-key: #7aa7d8;
  --token-string: #c8a36a;
  --token-number: #d97757;
  --token-bool: #9b88d4;
  --token-null: #6b7280;
  --token-bracket: #6b7280;

  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 8px;
  height: 580px;
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: var(--font-size);
  line-height: var(--json-viewer-line-height);
}
.viewport::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
.viewport::-webkit-scrollbar-track,
.viewport::-webkit-scrollbar-corner {
  background: transparent;
}
.viewport::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.06);
  border-radius: 5px;
  border: 2px solid var(--bg-subtle);
}
.viewport::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.14);
}
.viewport:focus {
  outline: none;
}

.line {
  height: var(--json-viewer-line-height);
  line-height: var(--json-viewer-line-height);
  display: flex;
  align-items: center;
  white-space: nowrap;
  padding-right: 16px;
  color: var(--fg);
}
.line[data-sticky] {
  background: var(--bg-sticky);
  box-shadow: inset 2px 0 0 var(--accent);
}
.line[data-sticky-last]::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 6px;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.35), rgba(0, 0, 0, 0));
  pointer-events: none;
}
.line[data-clickable] {
  cursor: pointer;
}
.line[data-clickable]:hover {
  background: var(--bg-hover);
}
.line[data-focused] {
  background: var(--bg-hover);
}
.property:focus {
  outline: none;
}
.property:focus-visible > .line {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}
.trigger {
  color: var(--fg-faint);
  transition: transform 80ms;
}
.trigger[data-state='open'] {
  transform: rotate(90deg);
}
.viewport [data-token='property'] {
  color: var(--token-key);
}
.viewport [data-token='punctuation'] {
  color: var(--fg-faint);
}
.viewport [data-token='bracket'] {
  color: var(--token-bracket);
}
.viewport [data-token='string'] {
  color: var(--token-string);
}
.viewport [data-token='number'] {
  color: var(--token-number);
}
.viewport [data-token='boolean'] {
  color: var(--token-bool);
}
.viewport [data-token='null'] {
  color: var(--token-null);
  font-style: italic;
}
.viewport [data-token='ellipsis'] {
  color: var(--fg-faint);
  padding: 0 4px;
}
.viewport [data-token='count'] {
  color: var(--fg-faint);
  font-size: 10.5px;
  margin-left: 8px;
  font-style: italic;
}

.inputRow {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
  align-items: stretch;
}
.input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--fg);
  padding: 8px 12px;
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  outline: none;
  transition: border-color 120ms;
}
.input:focus {
  border-color: var(--accent);
}
.button {
  background: var(--accent);
  color: #1a1206;
  border: none;
  padding: 8px 16px;
  font-family: inherit;
  font-weight: 600;
  font-size: 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 120ms;
}
.button:hover {
  background: var(--accent-2);
}
.error {
  margin-bottom: 8px;
  padding: 6px 10px;
  background: rgba(224, 108, 117, 0.1);
  color: #e06c75;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
}

/* Collapse/expand animation. `interpolate-size` lets `height` interpolate
 * to/from `auto`. `overflow: clip` clips the content while it slides — `clip`,
 * not `hidden`, so the group never becomes a block formatting context: a BFC
 * would contain the close row's sticky negative margin and snap the height by
 * one row when the transition ends. */
.group {
  interpolate-size: allow-keywords;
}
.group[data-starting-style],
.group[data-ending-style] {
  height: 0;
  opacity: 0;
}
.group[data-ending-style] {
  /* The close-row offset (the group's inline negative margin-bottom) must SNAP
     to 0 on collapse — in lockstep with the open Property's padding
     compensation, which React drops synchronously. Animating the margin alone
     leaves the footprint a row short mid-close and jumps the rows below. Zeroed
     only on `ending` (collapse); on `starting` (expand) the inline -1row stays
     so it keeps cancelling the padding. */
  margin-bottom: 0 !important;
}
.group[data-transitioning] {
  /* Scoped to this attribute so toggling the `sticky` prop stays instant and
     only an actual collapse/expand animates. The close-row margin is NOT in the
     transition: it snaps (see above) so it can't desync from the padding. */
  transition:
    height 160ms ease,
    opacity 120ms ease;
  overflow: clip;
}