/* Copyright 2026 Mozilla Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

:root {
  color-scheme: light dark;

  /* Backgrounds */
  --bg-color: light-dark(#fff, #1e1e1e);
  --surface-bg: light-dark(#f3f3f3, #252526);
  --input-bg: light-dark(#fff, #3c3c3c);
  --button-bg: light-dark(#f3f3f3, #3c3c3c);
  --button-hover-bg: light-dark(#e0e0e0, #4a4a4a);
  --clr-canvas-bg: var(--surface-bg);

  /* Text */
  --text-color: light-dark(#1e1e1e, #d4d4d4);
  --muted-color: light-dark(#6e6e6e, #888);
  --accent-color: light-dark(#0070c1, #9cdcfe);

  /* Borders */
  --border-color: light-dark(#e0e0e0, #3c3c3c);
  --border-subtle-color: light-dark(#d0d0d0, #444);
  --input-border-color: light-dark(#c8c8c8, #555);

  /* Interactive states */
  --hover-bg: light-dark(rgb(0 0 0 / 0.05), rgb(255 255 255 / 0.05));
  --hover-color: currentColor;
  --paused-bg: light-dark(rgb(255 165 0 / 0.15), rgb(255 165 0 / 0.2));
  --paused-outline-color: rgb(255 140 0 / 0.6);
  --paused-color: currentColor;

  /* Semantic */
  --ref-color: light-dark(#007b6e, #4ec9b0);
  --ref-hover-color: light-dark(#065, #89d9c8);
  --changed-bg: transparent;
  --changed-color: light-dark(#c00, #f66);
  --match-bg: light-dark(rgb(255 200 0 / 0.35), rgb(255 200 0 / 0.25));
  --match-outline-color: light-dark(rgb(200 140 0 / 0.8), rgb(255 200 0 / 0.6));

  /* Syntax highlighting */
  --string-color: light-dark(#a31515, #ce9178);
  --number-color: light-dark(#098658, #b5cea8);
  --bool-color: light-dark(#00f, #569cd6);
  --null-color: light-dark(#767676, #808080);
  --name-color: light-dark(#795e26, #dcdcaa);
  --stream-color: light-dark(#af00db, #c586c0);
}

@media (forced-colors: active) {
  :root {
    /* Backgrounds */
    --bg-color: Canvas;
    --surface-bg: Canvas;
    --input-bg: Field;
    --button-bg: ButtonFace;
    --button-hover-bg: Highlight;
    --clr-canvas-bg: var(--surface-bg);

    /* Text */
    --text-color: CanvasText;
    --muted-color: GrayText;
    --accent-color: CanvasText;

    /* Borders */
    --border-color: ButtonBorder;
    --border-subtle-color: ButtonBorder;
    --input-border-color: ButtonBorder;

    /* Interactive states */
    --hover-bg: Highlight;
    --hover-color: HighlightText;
    --paused-bg: Mark;
    --paused-outline-color: ButtonBorder;
    --paused-color: MarkText;

    /* Semantic */
    --ref-color: LinkText;
    --ref-hover-color: ActiveText;
    --changed-bg: Mark;
    --changed-color: MarkText;
    --match-bg: Mark;
    --match-outline-color: ButtonBorder;

    /* Syntax highlighting — replaced by plain text in HCM */
    --string-color: CanvasText;
    --number-color: CanvasText;
    --bool-color: CanvasText;
    --null-color: GrayText;
    --name-color: CanvasText;
    --stream-color: CanvasText;
  }

  /* Resizer hover: accent color → CanvasText is wrong for a background. */
  #render-resizer,
  #op-resizer,
  #op-gfx-state-resizer {
    &:hover,
    &.dragging {
      background: Highlight;
    }
  }

  /* Opacity trick for breakpoint glyph visibility → use Canvas color to hide. */
  .bp-gutter::before {
    opacity: 1;
    color: Canvas;
  }
  .bp-gutter:hover::before {
    color: ButtonBorder;
  }
  .bp-gutter.active::before {
    color: ButtonText;
  }

  /* Opacity-only disabled style → explicit GrayText. */
  button:disabled,
  input:disabled {
    color: GrayText;
    border-color: GrayText;
    opacity: 1;
  }

  /* Color swatch preserves the actual PDF color value. */
  .color-swatch {
    forced-color-adjust: none;
  }
}

* {
  box-sizing: border-box;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
body.loading {
  cursor: wait;
}
html {
  height: 100%;
}
body {
  font-family: "Courier New", Courier, monospace;
  margin: 0;
  padding: 16px;
  background: var(--bg-color);
  color: var(--text-color);
  font-size: 13px;
  line-height: 1.5;
  display: flex;
  flex-direction: column;
}

/* In debug mode the body must be viewport-height so #debug-view can fill it.
   In tree mode body is auto-height so the tree can grow and the page scrolls. */
body:has(#debug-view:not([hidden])) {
  height: 100%;
  overflow: hidden;
}
#header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 12px;

  h1 {
    color: var(--accent-color);
    font-size: 1.2em;
    margin: 0;
  }

  #pdf-info {
    font-family: system-ui, sans-serif;
    font-size: 1.15em;
    font-weight: 500;
    color: var(--text-color);
  }
}
#password-dialog {
  background: var(--input-bg);
  color: var(--text-color);
  border: 1px solid var(--input-border-color);
  border-radius: 6px;
  padding: 20px;
  min-width: 320px;

  &::backdrop {
    background: rgb(0 0 0 / 0.4);
  }

  p {
    margin: 0 0 12px;
  }

  input {
    display: block;
    width: 100%;
    margin-top: 4px;
    background: var(--input-bg);
    color: var(--text-color);
    border: 1px solid var(--input-border-color);
    border-radius: 3px;
    padding: 4px 8px;
    font-family: inherit;
    font-size: inherit;
  }

  .password-dialog-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 16px;

    button {
      padding: 4px 14px;
      border-radius: 3px;
      border: 1px solid var(--input-border-color);
      background: var(--button-bg);
      color: inherit;
      cursor: pointer;
      font-family: inherit;
      font-size: inherit;

      &:hover {
        background: var(--button-hover-bg);
      }
    }
  }
}
#controls {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  padding: 10px 14px;
  background: var(--surface-bg);
  border-radius: 4px;
  border: 1px solid var(--border-color);

  label {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--muted-color);
  }

  #github-link {
    margin-inline-start: auto;
    display: flex;
    align-items: center;
    color: var(--muted-color);
    text-decoration: none;

    &:hover {
      color: var(--text-color);
    }

    svg {
      width: 20px;
      height: 20px;
      fill: currentColor;
    }
  }
}
#goto-input {
  background: var(--input-bg);
  color: var(--text-color);
  border: 1px solid var(--input-border-color);
  border-radius: 3px;
  padding: 2px 6px;
  font-family: inherit;
  font-size: inherit;

  &:disabled {
    opacity: 0.4;
  }
  &[aria-invalid="true"] {
    border-color: var(--changed-color);
  }
}
#status {
  color: var(--muted-color);
  font-style: italic;
}
#tree.loading {
  pointer-events: none;
}
#tree {
  padding: 8px 12px;
  background: var(--surface-bg);
  border-radius: 4px;
  border: 1px solid var(--border-color);
  min-height: 60px;

  .node {
    display: block;
    padding: 1px 0;
  }
  .key {
    color: var(--accent-color);
  }
  .separator {
    color: var(--muted-color);
  }
  [role="button"] {
    display: inline-block;
    width: 14px;
    font-size: 0.7em;
    color: var(--muted-color);
    cursor: pointer;
    user-select: none;
    vertical-align: middle;
  }
  [role="group"] {
    padding-left: 20px;
    border-left: 1px dashed var(--border-subtle-color);
    margin-left: 2px;

    &.hidden {
      display: none;
    }
  }
  .ref {
    color: var(--ref-color);
    cursor: pointer;
    text-decoration: underline dotted;

    &:hover {
      color: var(--ref-hover-color);
    }
  }
  .str-value {
    color: var(--string-color);
  }
  .num-value {
    color: var(--number-color);
  }
  .bool-value {
    color: var(--bool-color);
  }
  .null-value {
    color: var(--null-color);
  }
  .name-value {
    color: var(--name-color);
  }
  .bracket {
    color: var(--muted-color);
    cursor: pointer;
    user-select: none;

    &:hover {
      color: light-dark(#444, #bbb);
    }
  }
  .stream-label {
    color: var(--stream-color);
    font-style: italic;
  }
  [role="status"] {
    color: var(--muted-color);
    font-style: italic;
  }
  [role="alert"] {
    color: var(--changed-color);
  }
  .bytes-content {
    padding-left: 20px;
    white-space: pre-wrap;
    font-size: 1em;
    opacity: 0.85;
    color: var(--string-color);
  }
  .bytes-hex {
    font-family: monospace;
    color: var(--bool-color);
  }
  .image-preview {
    display: block;
    margin-top: 4px;
    max-width: 40%;
    height: auto;
    image-rendering: pixelated;
    border: 1px solid var(--border-subtle-color);
  }
  .content-stm-scroll {
    display: flex;
    flex-direction: column;
    max-height: 60vh;
    border: 1px solid var(--border-subtle-color);
    border-radius: 3px;
    overflow: hidden;
  }
  .content-stm-load-sentinel {
    height: 1px;
  }
  .token-cmd {
    color: var(--accent-color);
    font-weight: bold;
  }
  .token-num {
    color: var(--number-color);
  }
  .token-str {
    color: var(--string-color);
  }
  .token-name {
    color: var(--name-color);
  }
  .token-bool {
    color: var(--bool-color);
  }
  .token-null {
    color: var(--null-color);
  }
  .token-ref {
    color: var(--ref-color);
  }
  .token-array,
  .token-dict {
    color: var(--text-color);
  }
}
#debug-btn,
#debug-back-btn {
  padding: 4px 12px;
  border-radius: 3px;
  border: 1px solid var(--input-border-color);
  background: var(--button-bg);
  color: inherit;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;

  &:hover {
    background: var(--button-hover-bg);
  }
}
#debug-view {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;

  &[hidden] {
    display: none;
  }
}
#render-panels {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: row;
  gap: 0;
  align-items: stretch;
}
#render-resizer {
  flex-shrink: 0;
  width: 6px;
  align-self: stretch;
  cursor: col-resize;
  background: var(--border-color);

  &:hover,
  &.dragging {
    background: var(--accent-color);
  }
}
/* ── Shared code-view layout (content stream and op-list) ──────────────── */
/* Row wrapper that sits between the toolbar and the scrollable content.
   Hosts the frozen line-number column and the actual scroll container. */
.content-stm-body,
.op-list-body {
  flex: 1;
  display: flex;
  flex-direction: row;
  min-height: 0;
}
.content-stm-body {
  line-height: 1.8;
}
/* The line-number column lives *outside* the scroll container so it is
   never affected by horizontal or vertical scroll. Its scrollTop is kept
   in sync with the adjacent scroll container via a JS scroll listener. */
.cs-line-nums-col {
  overflow: hidden;
  flex-shrink: 0;
  background: var(--surface-bg);
  border-inline-end: 1px solid var(--border-subtle-color);
}
.content-stm-inner {
  flex: 1;
  overflow: auto;
  /* Disable scroll anchoring so manual scrollTop corrections aren't doubled. */
  overflow-anchor: none;
}
.content-stm-instruction {
  display: block;
  white-space: nowrap;
  padding-inline-start: 0.5em;
}
.raw-bytes-stream {
  color: var(--string-color);
}
/* ── Shared search/goto toolbar (used in .content-stm-scroll and #op-list-panel) ── */
.cs-goto-bar {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px 4px;
  background: var(--surface-bg);
  border-bottom: 1px solid var(--border-subtle-color);
  z-index: 1;

  .cs-search-group {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
  }

  .cs-search-input,
  .cs-goto {
    font: inherit;
    font-size: 0.85em;
    padding: 2px 6px;
    border: 1px solid var(--input-border-color);
    border-radius: 3px;
    background: var(--input-bg);
    color: var(--text-color);

    &:focus {
      outline: 2px solid var(--accent-color);
      outline-offset: 0;
    }

    &[aria-invalid="true"] {
      border-color: red;
    }
  }

  .cs-search-input {
    width: 140px;
  }

  .cs-goto {
    width: 110px;
    margin-inline-start: auto;
  }

  .cs-nav-btn {
    font: inherit;
    font-size: 0.85em;
    padding: 1px 6px;
    border: 1px solid var(--input-border-color);
    border-radius: 3px;
    background: var(--button-bg);
    color: var(--text-color);
    cursor: pointer;
    line-height: 1.4;

    &:hover:not(:disabled) {
      background: var(--button-hover-bg);
    }

    &:disabled {
      opacity: 0.4;
      cursor: default;
    }

    &[aria-pressed="true"] {
      background: var(--accent-color);
      color: light-dark(white, black);
      border-color: var(--accent-color);
    }
  }

  .cs-match-info {
    font-size: 0.8em;
    color: var(--muted-color);
    white-space: nowrap;
    min-width: 4ch;
  }

  .cs-check-label {
    display: flex;
    align-items: center;
    gap: 3px;
    font-size: 0.85em;
    cursor: pointer;
    white-space: nowrap;
  }
}
.cs-num-item {
  display: block;
  white-space: nowrap;
}
/* Op-list num items need padding/spacing to match .op-line and #op-list-panel. */
.op-list-body .cs-num-item {
  padding: 1px 0;
}
.op-list-body .cs-line-nums-col {
  padding-block: 8px;
}
.cs-num-item.cs-match {
  background: var(--match-bg);
}
.cs-line-num {
  display: inline-block;
  min-width: var(--line-num-width, 3ch);
  padding-inline: 0.4em;
  text-align: right;
  font-family: monospace;
  font-size: 0.8em;
  color: var(--muted-color);
  user-select: none;
}
.cs-match {
  background: var(--match-bg);
  outline: 1px solid var(--match-outline-color);
  border-radius: 2px;
}

#op-left-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
#op-resizer {
  flex-shrink: 0;
  height: 6px;
  cursor: row-resize;
  background: var(--border-color);

  &:hover,
  &.dragging {
    background: var(--accent-color);
  }
}
#op-top-row {
  flex: 4 1 0;
  display: flex;
  flex-direction: row;
  min-height: 0;
}
/* Wrapper injected by showRenderView() to host the toolbar above #op-list-panel
   without it being part of the horizontal-scroll area. */
.op-list-panel-wrapper {
  flex: 1 1 0;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;

  & > .cs-goto-bar {
    position: static;
    border: 1px solid var(--border-color);
    border-bottom-color: var(--border-subtle-color);
    border-radius: 4px 4px 0 0;
  }

  & > .op-list-body > #op-list-panel {
    flex: 1 1 0;
    border-radius: 0 0 4px 4px;
    border-top: none;
  }
}
#op-list-panel {
  flex: 1 1 0;
  overflow: auto;
  min-width: 0;
  min-height: 0;
  padding: 8px 12px;
  background: var(--surface-bg);
  border-radius: 4px;
  border: 1px solid var(--border-color);
}
#op-list {
  min-width: max-content;
}
#op-gfx-state-resizer {
  flex-shrink: 0;
  width: 6px;
  align-self: stretch;
  cursor: col-resize;
  background: var(--border-color);

  &:hover,
  &.dragging {
    background: var(--accent-color);
  }
}
#gfx-state-panel {
  flex: 0 0 auto;
  width: 40ch;
  overflow: auto;
  min-height: 0;
  padding: 8px 12px;
  background: var(--surface-bg);
  border-radius: 4px;
  border: 1px solid var(--border-color);

  .gfx-state-section + .gfx-state-section {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--border-color);
  }
  .gfx-state-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4px;
    color: var(--accent-color);
    font-weight: bold;
    margin-bottom: 4px;
  }
  .gfx-state-stack-nav {
    display: flex;
    align-items: center;
    gap: 2px;
    font-weight: normal;
    font-size: 0.8em;

    &[hidden] {
      display: none;
    }
  }
  .gfx-state-stack-btn {
    padding: 0 3px;
    border: 1px solid currentcolor;
    border-radius: 2px;
    background: transparent;
    color: inherit;
    cursor: pointer;
    line-height: 1.3;

    &:disabled {
      opacity: 0.35;
      cursor: default;
    }
  }
  .gfx-state-stack-pos {
    min-width: 4ch;
    text-align: center;
    font-variant-numeric: tabular-nums;
  }
  .gfx-state-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 1px 0;
  }
  .gfx-state-key {
    color: var(--muted-color);
    flex-shrink: 0;
    min-width: 20ch;
  }
  .gfx-state-val {
    color: var(--number-color);
    flex: 1 1 0;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}
#op-detail-panel {
  flex: 1 1 0;
  container-type: size;
  overflow: auto;
  min-height: 0;
  padding: 8px 12px;
  background: var(--surface-bg);
  border-radius: 4px;
  border: 1px solid var(--border-color);

  .detail-name {
    color: var(--accent-color);
    font-weight: bold;
    margin-bottom: 4px;
  }
  .detail-empty {
    color: var(--muted-color);
    font-style: italic;
  }
  .detail-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 1px 0;
  }
  .detail-idx {
    color: var(--muted-color);
    flex-shrink: 0;
  }
  .detail-val {
    color: var(--number-color);
    white-space: pre-wrap;
    word-break: break-all;
  }
  .detail-body {
    display: flex;
    flex-direction: row;
    gap: 12px;
    align-items: flex-start;
  }
  .detail-args-col {
    flex: 1;
    min-width: 0;
  }
  .detail-img-col {
    flex-shrink: 0;
    max-width: 45%;
    overflow: hidden;

    .image-preview {
      height: 90cqh;
      width: auto;
      max-width: 100%;
      margin-top: 0;
    }
  }
  .path-preview {
    flex-shrink: 0;
    border: 1px solid var(--border-subtle-color);
    border-radius: 3px;
    background: var(--bg-color);
  }
}
#canvas-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--surface-bg);
  border-radius: 4px;
  border: 1px solid var(--border-color);
}
#canvas-toolbar {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 4px 8px;
  border-bottom: 1px solid var(--border-color);

  button {
    padding: 1px 8px;
    border-radius: 3px;
    border: 1px solid var(--input-border-color);
    background: var(--button-bg);
    color: inherit;
    cursor: pointer;
    font-family: inherit;
    font-size: 1.1em;
    line-height: 1.4;

    &:hover {
      background: var(--button-hover-bg);
    }
    &:disabled {
      opacity: 0.4;
      cursor: default;
    }
  }

  #zoom-level {
    min-width: 4ch;
    text-align: center;
  }
}
#canvas-scroll {
  flex: 1;
  overflow: auto;
  padding: 8px 12px;
  min-height: 0;
  background: var(--clr-canvas-bg);
  display: flex;
  flex-direction: column;
  align-items: safe center;
  gap: 12px;
}
#canvas-wrapper {
  position: relative;
  display: inline-block;
  line-height: 0;
}
.temp-canvas-wrapper {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  cursor: pointer;
}
.temp-canvas-label {
  font-size: 0.85em;
  color: var(--muted-color);
  font-style: italic;
}
.temp-canvas-wrapper canvas {
  border: 1px solid var(--border-subtle-color);
  zoom: calc(1 / var(--dpr, 1));
}
#render-canvas {
  cursor: pointer;
}
#highlight-canvas {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
}
.op-line {
  display: flex;
  align-items: center;
  gap: 0.5ch;
  white-space: nowrap;
  padding: 1px 0;
  cursor: pointer;

  &.selected {
    text-decoration: underline;
  }

  &:hover {
    background: var(--hover-bg);
    color: var(--hover-color);
  }
}
.color-swatch {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1px solid var(--muted-color);
  flex-shrink: 0;
}
.op-name {
  color: var(--accent-color);
  font-weight: bold;
}
.op-arg {
  color: var(--number-color);
}
.changed-value {
  font-weight: bold;
  background: var(--changed-bg);
  color: var(--changed-color);
}
.bp-gutter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  flex-shrink: 0;
  cursor: pointer;
  user-select: none;

  &::before {
    content: "●";
    color: var(--changed-color);
    font-size: 0.75em;
    opacity: 0;
  }

  &:hover::before {
    opacity: 0.4;
  }

  &.active::before {
    opacity: 1;
  }
}
.op-line.paused {
  background: var(--paused-bg);
  color: var(--paused-color);
  outline: 1px solid var(--paused-outline-color);
  outline-offset: -1px;
}