claude-scriptorium 0.1.3

Render Claude Code sessions as self-contained HTML
Documentation 
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/*
 * illumination: the theme layer for a folio.
 *
 * A parchment leaf with an illuminated border: rubricated initials, vine
 * ornaments in the outer margins, and fleuron dividers, all drawn in CSS and
 * inline SVG so the folio stays self-contained. A single light palette lives
 * in the token block, so the dark variant (M3) is a swap of those values.
 *
 * Syntax colors target the canonical TextMate scope roots (comment, string,
 * keyword, ...) that syntect emits as the first class on every span, so the
 * palette covers every language without enumerating their finer scopes.
 */

:root {
  /* Every colour is a light-dark() pair, resolved by `color-scheme`. System
   * preference is the default (`light dark`); the theme toggle forces one side
   * by setting color-scheme to `light` or `dark` on <html> (see [data-theme]
   * below), so the whole palette swaps without a duplicated token block. */
  color-scheme: light dark;

  --page: light-dark(#e7dcc0, #171310);
  --leaf: light-dark(#f7f1e1, #201a14);
  --leaf-sunk: light-dark(#f1e9d4, #29221a);
  --ink: light-dark(#2b2620, #ece2cf);
  --ink-soft: light-dark(#6f6656, #b6ab93);
  --ink-faint: light-dark(#9a9080, #857b66);
  --rule: light-dark(#d8ccae, #3b3327);
  --rule-soft: light-dark(#e6dcc3, #2e2820);

  /* The mineral pigments a scribe actually ground: vermilion and red lead,
   * lapis lazuli, malachite, Tyrian purple, ochre, and burnished gold. The
   * dark side lifts each hue so it holds its chroma against a dark vellum. */
  --rubric: light-dark(#b0281d, #e0715f); /* vermilion / red lead */
  --sienna: light-dark(#9a6410, #cf9a4c); /* yellow ochre / raw sienna */
  --gold: light-dark(#b8860b, #d9ad4e); /* solid gold, for small marks */

  /* Burnished gold leaf: the 135° sheen gilded ornaments take by clipping it to
   * their glyph. Metal reads as gold on either ground, so this is one value,
   * not a light-dark pair. */
  --gold-leaf: linear-gradient(
    135deg,
    #f6e08f 0%,
    #d9ad4e 28%,
    #b8860b 50%,
    #916a12 64%,
    #d9ad4e 82%,
    #f6e08f 100%
  );
  --verdigris: light-dark(#2f7a4d, #58b783); /* malachite green */
  --lapis: light-dark(#274690, #7f9fe6); /* lapis lazuli / ultramarine */
  --tyrian: light-dark(#6b2f74, #bd83c8); /* Tyrian purple / folium */

  /* Not a manuscript pigment, but the assistant's own hue. */
  --claude: light-dark(#d97757, #e08a6a);

  --user-edge: var(--lapis);
  --assistant-edge: var(--claude);
  --sidechain-edge: var(--tyrian);
  --error-edge: var(--rubric);

  --measure: 44rem;
  --radius: 4px;

  /* Junicode, Fira Code, and UnifrakturCook are embedded as @font-face rules
   * (see render.rs); the stacks behind them are fallbacks for glyphs the
   * bundled faces lack, since transcripts carry arbitrary Unicode. */
  --serif: "Junicode", "Iowan Old Style", "Palatino Linotype", Palatino,
    "Book Antiqua", Georgia, serif;
  --mono: "Fira Code", ui-monospace, "SF Mono", "Cascadia Code",
    "JetBrains Mono", Menlo, Consolas, monospace;
  --display: "UnifrakturCook", var(--serif);

  /* The eight colours a terminal names, and their bright counterparts, ground
   * into the folio's own pigments so a build log reads in the same palette as
   * everything around it. Bright black is a terminal's usual "this matters
   * less", so it takes the faint ink rather than a lifted black. A colour a
   * tool states outright (256-colour or 24-bit) can't be a token and is carried
   * as its own value. */
  --ansi-black: light-dark(#4a4238, #6f6656);
  --ansi-red: var(--rubric);
  --ansi-green: var(--verdigris);
  --ansi-yellow: var(--sienna);
  --ansi-blue: var(--lapis);
  --ansi-magenta: var(--tyrian);
  --ansi-cyan: light-dark(#1f6f77, #6fc3cb);
  --ansi-white: var(--ink-soft);
  --ansi-bright-black: var(--ink-faint);
  --ansi-bright-red: light-dark(#c8412f, #f08d7b);
  --ansi-bright-green: light-dark(#3d9460, #74d19c);
  --ansi-bright-yellow: light-dark(#b47c1f, #e5b667);
  --ansi-bright-blue: light-dark(#3459ac, #9db6ee);
  --ansi-bright-magenta: light-dark(#84408e, #d09ad9);
  --ansi-bright-cyan: light-dark(#2a8890, #8ed6dd);
  --ansi-bright-white: var(--ink);

  /* Syntax tokens, all resolved against the parchment ground. */
  --syn-comment: light-dark(#948a74, #7f765f);
  --syn-string: var(--verdigris);
  --syn-keyword: var(--rubric);
  --syn-storage: var(--rubric);
  --syn-constant: var(--sienna);
  --syn-entity: var(--lapis);
  --syn-variable: var(--tyrian);
  --syn-support: var(--lapis);
  --syn-inserted: var(--verdigris);
  --syn-deleted: var(--rubric);
}

/* The theme toggle forces one side of every light-dark() pair by pinning
 * color-scheme; absent the attribute (or with data-theme="system") the :root
 * default of `light dark` follows the OS. */
:root[data-theme="light"] {
  color-scheme: light;
}

:root[data-theme="dark"] {
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  font-size: 17px;
  /* Parchment ground with faint mottling, so the page isn't a flat fill. */
  background-color: var(--page);
  /* The parchment mottling inverts for dark: a warm highlight and a deepening
   * shadow rather than the light page's bright bloom. */
  background-image:
    radial-gradient(
      ellipse at 20% 15%,
      light-dark(rgba(255, 255, 255, 0.35), rgba(255, 244, 214, 0.06)),
      transparent 55%
    ),
    radial-gradient(
      ellipse at 85% 80%,
      light-dark(rgba(120, 96, 48, 0.12), rgba(0, 0, 0, 0.28)),
      transparent 60%
    );
}

/* The body is the leaf itself: a centered parchment page. */
body {
  position: relative;
  max-width: var(--measure);
  margin: 2.5rem auto 3rem;
  padding: 3rem 3.25rem 2.5rem;
  background: var(--leaf);
  color: var(--ink);
  font-family: var(--serif);
  line-height: 1.6;
  border: 1px solid var(--rule);
  box-shadow:
    0 0 0 1px var(--leaf) inset,
    0 0 0 4px var(--rule-soft) inset,
    0 6px 26px rgba(60, 46, 20, 0.18);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

/* Illuminated borders down the outer margins: a per-session strip of vine
 * sections with drolleries seated among them (composed in render.rs, its data
 * URI set inline), tiled to fill the leaf however tall it grows. Each creature
 * is mirrored at random within the strip, so neither margin faces a consistent
 * way; the left copy is flipped whole so the two vines curl as a mirrored
 * frame around the text. */
.margin {
  position: absolute;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 90px;
  background-repeat: repeat-y;
  background-position: center top;
  opacity: 0.9;
  pointer-events: none;
}

.margin--left {
  right: 100%;
  margin-right: 0.5rem;
  transform: scaleX(-1);
}

.margin--right {
  left: 100%;
  margin-left: 0.5rem;
}

@media (max-width: 62rem) {
  .margin {
    display: none;
  }
}

@media (max-width: 34rem) {
  body {
    padding: 1.75rem 1.25rem;
  }
}

/* --- Search: a fixed widget that steps through matches --------------- */

.search {
  position: fixed;
  top: 0.8rem;
  right: 0.8rem;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0.34rem 0.5rem;
  background: var(--leaf);
  border: 1px solid var(--rule);
  border-radius: 0.9rem;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.18);
  font-family: var(--mono);
  font-size: 0.7rem;
}

.search__bar {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.search__scopes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  justify-content: center;
}

.search__scope {
  --scope-hue: var(--ink-soft);
  padding: 0.05rem 0.4rem;
  border: 1px solid color-mix(in srgb, var(--scope-hue) 45%, transparent);
  border-radius: 999px;
  background: transparent;
  color: var(--scope-hue);
  font: inherit;
  line-height: 1.4;
  cursor: pointer;
}

.search__scope--user {
  --scope-hue: var(--user-edge);
}

.search__scope--assistant {
  --scope-hue: var(--assistant-edge);
}

.search__scope[aria-pressed="true"] {
  background: color-mix(in srgb, var(--scope-hue) 20%, transparent);
  border-color: var(--scope-hue);
}

/* Off reads as struck out: dimmed and no longer searched. */
.search__scope[aria-pressed="false"] {
  opacity: 0.5;
  text-decoration: line-through;
}

.search__input {
  width: 9rem;
  border: none;
  background: transparent;
  color: var(--ink);
  font: inherit;
  outline: none;
}

.search__input::placeholder {
  color: var(--ink-faint);
}

.search__count {
  min-width: 3.4rem;
  text-align: right;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}

.search__nav {
  padding: 0 0.25rem;
  border: none;
  background: transparent;
  color: var(--ink-soft);
  font: inherit;
  line-height: 1;
  cursor: pointer;
}

.search__nav:disabled {
  opacity: 0.35;
  cursor: default;
}

mark.search__hit {
  color: inherit;
  background: color-mix(in srgb, var(--gold) 34%, transparent);
  border-radius: 2px;
}

mark.search__hit.is-current {
  background: color-mix(in srgb, var(--gold) 68%, transparent);
  outline: 1px solid var(--gold);
}

/* On narrow screens the widget would crowd the leaf; let it shrink. */
@media (max-width: 34rem) {
  .search__input {
    width: 6rem;
  }
}

/* --- Dock: fixed jump / fold controls -------------------------------- */

.dock {
  position: fixed;
  right: 0.8rem;
  bottom: 0.8rem;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.3rem;
  background: var(--leaf);
  border: 1px solid var(--rule);
  border-radius: 0.9rem;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.18);
}

/* Three columns of up/down arrows: a user (blue) and assistant (orange)
 * column seeking one speaker, flanking the middle column that steps all. */
.dock__nav {
  display: grid;
  grid-template-columns: repeat(3, 2.2rem);
  gap: 0.2rem;
}

.dock__fold,
.dock__leap {
  display: flex;
  justify-content: center;
  gap: 0.2rem;
}

/* The follow toggle lights gold while active, so a live "tailing" reads at a
 * glance and is told apart from the plain jump-to-end beside it. */
.dock__btn--tail[aria-pressed="true"] {
  --dock-hue: var(--gold);
  background: var(--leaf-sunk);
}

.dock__btn {
  --dock-hue: var(--ink-soft);
  display: grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--dock-hue);
  font-size: 0.95rem;
  line-height: 1;
  cursor: pointer;
}

.dock__btn--user {
  --dock-hue: var(--user-edge);
}

.dock__btn--assistant {
  --dock-hue: var(--assistant-edge);
}

/* The fold buttons stack two chevrons: outward to unfold, inward to fold. */
/* The chevron glyphs hug the direction they point, so outward and inward need
 * different box gaps to read as the same visual separation. */
.dock__btn--fold {
  display: flex;
  flex-direction: column;
}

.dock__btn--fold[data-fold="expand"] {
  gap: 0.08rem;
}

.dock__btn--fold[data-fold="collapse"] {
  gap: 0.32rem;
}

.dock__chevron {
  font-size: 0.8rem;
  line-height: 0.85;
}

/* Hover brightens each arrow's own hue rather than recolouring it, so a user
 * (blue) or assistant (orange) arrow never flashes the other speaker's colour. */
.dock__btn:hover,
.dock__btn:focus-visible {
  background: var(--leaf-sunk);
  color: color-mix(in srgb, var(--dock-hue), white 30%);
}

/* --- Plaque: title, facts, and colophon on demand -------------------- */
/* A disclosure in the top corner, opposite the search widget: the reading
 * column stays pure transcript, and the folio's metadata is a click away. */

.plaque {
  position: fixed;
  top: 0.8rem;
  left: 0.8rem;
  z-index: 10;
}

.plaque__seal {
  display: grid;
  place-items: center;
  width: 1.9rem;
  height: 1.9rem;
  padding: 0;
  background: var(--leaf);
  border: 1px solid var(--rule);
  border-radius: 50%;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.18);
  color: var(--gold);
  font-family: inherit;
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
}

.plaque:hover .plaque__seal,
.plaque:focus-within .plaque__seal {
  color: var(--rubric);
}

.plaque__panel {
  position: absolute;
  display: none;
  top: calc(100% + 0.4rem);
  left: 0;
  width: max-content;
  max-width: min(22rem, 80vw);
  padding: 0.9rem 1.1rem;
  background: var(--leaf);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  box-shadow: 0 6px 26px rgba(60, 46, 20, 0.22);
}

/* The panel shows while the seal is hovered or focused. A click focuses the
 * seal (keeping :focus-within true), so it stays open until focus moves away;
 * on touch, a tap focuses it the same way. */
.plaque:hover .plaque__panel,
.plaque:focus-within .plaque__panel {
  display: block;
}

/* A transparent bridge across the seal-to-panel gap so the pointer can travel
 * into the panel without the hover lapsing. */
.plaque__panel::before {
  content: "";
  position: absolute;
  bottom: 100%;
  left: 0;
  right: 0;
  height: 0.5rem;
}

.plaque__title {
  margin: 0 0 0.7rem;
  font-family: var(--display);
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1.1;
  color: var(--rubric);
  word-break: break-word;
}

.plaque__facts {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.15rem 1rem;
  margin: 0;
  font-size: 0.78rem;
  color: var(--ink-soft);
}

.plaque__facts dt {
  font-variant: small-caps;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
}

.plaque__facts dd {
  margin: 0;
  word-break: break-word;
}

.plaque__colophon {
  margin: 0.7rem 0 0;
  font-size: 0.72rem;
  line-height: 1.5;
  color: var(--ink-faint);
}

/* --- Turns ----------------------------------------------------------- */

.turn {
  position: relative;
  margin: 1.6rem 0;
  padding: 0.2rem 0 0.2rem 1.1rem;
  border-left: 2px solid var(--rule);
  scroll-margin-top: 1rem;
}

/* A deep-linked turn (its number followed, or the page opened at #turn-N) takes
 * a faint gilt wash so the reader sees where they landed. The wash reaches as
 * far right of the turn number as the left padding sets the text in from the
 * border bar, so it sits symmetric; the negative margin lets the box grow
 * rightward (into the leaf's own margin) without reflowing its content. */
.turn:target {
  background: color-mix(in srgb, var(--gold) 9%, transparent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding-right: 1.1rem;
  margin-right: -1.1rem;
}

/* Hold the copy button on the turn number as the wash widens the box. */
.turn:target .copy-button--meta {
  right: 1.1rem;
}

.turn--user {
  border-left-color: var(--user-edge);
}

.turn--assistant {
  border-left-color: var(--assistant-edge);
}

.turn[data-sidechain] {
  border-left-color: var(--sidechain-edge);
  border-left-style: dashed;
  margin-left: 1.5rem;
}

/* Harness-injected turns (command caveats, skill scaffolding, context dumps)
 * carry no reader value and are always hidden. */
.turn[data-meta] {
  display: none;
}

/* --- Controls: the presentation cluster, opposite the dock ----------- */
/* Bottom-left, mirroring the navigation dock at bottom-right. A bare anchor;
 * the theme toggle inside carries its own floating pill. */
.controls {
  position: fixed;
  left: 0.8rem;
  bottom: 0.8rem;
  z-index: 10;
}

/* A segmented light / dark / system control, wired by the app script. */
.theme-toggle {
  display: inline-flex;
  background: var(--leaf);
  border: 1px solid var(--rule);
  border-radius: 999px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.18);
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.theme-toggle button {
  padding: 0.28rem 0.75rem;
  border: none;
  background: transparent;
  color: var(--ink-faint);
  font: inherit;
  letter-spacing: inherit;
  cursor: pointer;
}

.theme-toggle button + button {
  border-left: 1px solid var(--rule);
}

.theme-toggle button[aria-pressed="true"] {
  background: var(--leaf-sunk);
  color: var(--rubric);
}

.turn__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 0.9rem;
  margin-bottom: 0.3rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.03em;
  color: var(--ink-faint);
}

/* The turn number is a permalink to its own panel: click it to put #turn-N in
 * the address bar and share the exact spot. Muted until hovered so it reads as
 * chrome, not prose. The two-class selector outranks the .folio a link rule. */
.turn__meta .turn__index {
  color: var(--ink-faint);
  text-decoration: none;
}

.turn__meta .turn__index:hover,
.turn__meta .turn__index:focus-visible {
  color: var(--gold);
  text-decoration: underline;
}

.turn__role {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--ink-soft);
}

.turn--user .turn__role {
  color: var(--user-edge);
}

.turn--assistant .turn__role {
  color: var(--assistant-edge);
}

/* Tool and thinking labels are secondary to prose, so mute them and reserve
 * the role colour for panels that actually speak to the reader. */
.turn[data-kind="tool"] .turn__role,
.turn[data-kind="thinking"] .turn__role {
  color: var(--ink-faint);
}

/* The turn's input and output sit with its other facts, faint enough to read as
 * an aside until the panel is hovered. Its exact counts, and which scope they
 * cover, are the title. */
.turn__usage {
  opacity: 0.45;
  font-variant-numeric: tabular-nums;
  cursor: help;
  transition: opacity 0.12s ease;
}

.turn:hover .turn__usage {
  opacity: 1;
}

/* Push the timestamp and turn number to the panel's top-right corner. */
.turn__time {
  margin-left: auto;
}

/* --- Blocks ---------------------------------------------------------- */

.block {
  margin: 0.7rem 0;
}

.block--text > :first-child,
.block--thinking > :first-child {
  margin-top: 0;
}

.block--text > :last-child,
.block--thinking > :last-child {
  margin-bottom: 0;
}

/* Rubricated versal: the first letter of a speaker's opening paragraph, set as
 * a dropped blackletter initial in the speaker's own colour. It opens each turn
 * of the conversation the way a manuscript opens a division, doubling as a
 * visual anchor for where the exchange turns. The renderer tags the leading
 * text block of a speech panel with data-versal, so only that paragraph is
 * decorated (and tool and thinking panels never are). The drop is two lines
 * uniformly: enough to read as an initial, shallow enough to keep turns
 * vertically compact and to never dangle far past a one-line message. The
 * `> p:first-child` guard means an opener that leads with a heading or list
 * (no paragraph) simply goes without. */
.block--text[data-versal] > p:first-child::first-letter {
  -webkit-initial-letter: 2 2;
  initial-letter: 2 2;
  margin-right: 0.4rem;
  font-family: var(--display);
  font-weight: 400;
  /* Uppercase the displayed initial so a lowercased opener still gets a
   * full-height capital; the DOM text stays as written, so copy and search
   * still see the original letter. */
  text-transform: uppercase;
  /* Gild the initial by laying a slightly-expanded gold silhouette behind it:
   * a ring of gold text-shadows traces the glyph a pixel or two out on every
   * side (::first-letter ignores text-stroke, so the shadow ring stands in). The
   * ring is lit diagonally, pale gold at the upper-left fading to deep gold at
   * the lower-right, so the gilt reads as the 135° gold-leaf sheen following the
   * glyph's own shape. The letter keeps its speaker colour on top. The golds are
   * baked, not var(--gold): metal reads as gold on either parchment. */
  text-shadow:
    -2px -2px 0 #f6e08f, -1px -1px 0 #f6e08f,
    -2px -1px 0 #ecd074, -1px -2px 0 #ecd074,
    0 -2px 0 #dcb45a, -2px 0 0 #dcb45a,
    1px -1px 0 #cfa347, -1px 1px 0 #cfa347,
    2px 0 0 #b98d22, 0 2px 0 #b98d22,
    1px 1px 0 #916a12, 2px 2px 0 #916a12,
    0 0 3px #b8860b;
}

.turn--user .block--text[data-versal] > p:first-child::first-letter {
  color: var(--user-edge);
}

.turn--assistant .block--text[data-versal] > p:first-child::first-letter {
  color: var(--assistant-edge);
}

.block--thinking {
  padding: 0.6rem 1rem;
  border-left: 2px solid var(--rule-soft);
  background: var(--leaf-sunk);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--ink-soft);
  font-style: italic;
}

/* A slim note where extended reasoning was redacted from the transcript. */
.block--redacted {
  margin: 0.5rem 0;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-variant: small-caps;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}

.block--redacted::before {
  content: "※ ";
  color: var(--gold);
}

.block--image {
  margin: 1rem 0;
}

.block--image img {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}

.block--unknown {
  font-family: var(--mono);
  font-size: 0.82rem;
}

.block--unknown > summary {
  color: var(--ink-faint);
  font-style: italic;
}

/* --- Marginalia: collapsible tool calls and their results ------------ */

.marginalia {
  margin: 0.55rem 0;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--leaf-sunk);
  font-size: 0.86rem;
}

.marginalia__head {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.35rem 0.7rem;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--ink-soft);
  list-style: none;
}

.marginalia > summary::-webkit-details-marker {
  display: none;
}

.marginalia > summary::before {
  content: "❧";
  color: var(--gold);
  font-size: 0.9em;
}

.marginalia[open] > summary::before {
  content: "❧";
  transform: rotate(90deg);
}

/* Gild the fold-marker fleurons and section dividers in the 135° gold leaf by
 * clipping the gradient to the glyph. A lone ::before glyph has no competing
 * background, so the sheen shows cleanly; where the clip is unsupported the
 * solid var(--gold) above remains. */
@supports (background-clip: text) or (-webkit-background-clip: text) {
  .marginalia > summary::before,
  .folio hr::before {
    background: var(--gold-leaf);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }
}

.marginalia[open] > summary {
  border-bottom: 1px solid var(--rule-soft);
}

/* A call the summary line states in full has nothing to open, so it carries the
 * fleuron in the rule's own colour: the line still aligns with the folds around
 * it, and reads as having no fold rather than a shut one. */
.marginalia--flat .marginalia__head {
  cursor: default;
}

.marginalia--flat .marginalia__head::before {
  content: "❧";
  color: var(--rule);
  font-size: 0.9em;
}

.marginalia__tool {
  font-weight: 600;
  color: var(--sienna);
}

/* A folded call's gist is a label, so it can ellipsise: opening the fold shows
 * the subject in full. */
.marginalia__gist {
  overflow: hidden;
  color: var(--ink-faint);
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* A flat call has no fold to open, so its gist is the only place the subject
 * appears: it wraps rather than being cut off at the column's edge. */
.marginalia--flat .marginalia__gist {
  overflow: visible;
  text-overflow: clip;
  white-space: normal;
  overflow-wrap: anywhere;
}

/* A qualifier on the call keeps its full width; the gist ellipsises around it. */
.marginalia__note {
  flex: none;
  color: var(--ink-faint);
  font-style: italic;
}

.marginalia--result > summary {
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.marginalia[data-error] {
  border-color: var(--error-edge);
  background: color-mix(in srgb, var(--rubric) 7%, var(--leaf-sunk));
}

.marginalia[data-error] > summary {
  color: var(--rubric);
}

/* A fold's body fills it edge to edge: a call's subject and a result's output
 * are the same kind of thing, so neither sits in a second box inside the first.
 * The fold is already a box, so the body sheds the chrome `.folio pre` gives a
 * standalone block and keeps only its padding. A code block nested deeper
 * (inside a result's own prose) stays a block and keeps its own frame. */
.folio details > pre {
  margin: 0;
  background: none;
  border: none;
  border-radius: 0;
}

/* On wide viewports, an open marginalia that holds a code, diff, or JSON block
 * unfurls past the reading measure, so wide content (diffs especially) fits
 * without sideways scrolling. Prose keeps the narrow column; only these panels
 * break out, lifting above the marginal vines on their own shadow. Scoped with
 * :has(pre) so a short text result stays in column. */
@media (min-width: 64rem) {
  .marginalia[open]:has(pre) {
    position: relative;
    z-index: 1;
    width: min(66rem, 92vw);
    margin-inline: calc((100% - min(66rem, 92vw)) / 2);
    box-shadow: 0 3px 20px rgba(40, 30, 12, 0.16);
  }
}

/* --- Tool bodies: the bespoke views for common tools ----------------- */

.tool--todos {
  margin: 0;
  padding: 0.3rem 0.8rem;
  list-style: none;
}

.tool__todo {
  display: flex;
  gap: 0.55rem;
  padding: 0.12rem 0;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--ink);
}

.tool__todo::before {
  content: "☐";
  color: var(--ink-faint);
}

.tool__todo[data-status="in_progress"]::before {
  content: "◐";
  color: var(--sienna);
}

.tool__todo[data-status="completed"]::before {
  content: "☑";
  color: var(--verdigris);
}

.tool__todo[data-status="completed"] {
  color: var(--ink-faint);
  text-decoration: line-through;
}

/* A body that is prose (a prompt, a plan, a message) keeps the reading face and
 * the fold's padding; a body that is a list of small structured things sets
 * those in the mono face, the way the summary line above it is set. */
.tool {
  margin: 0;
  padding: 0.5rem 0.85rem;
}

.tool--questions,
.tool--answers,
.tool--findings,
.tool--prompts,
.tool--references,
.tool--links,
.tool--facts {
  font-family: var(--mono);
  font-size: 0.8rem;
}

.tool--questions,
.tool--answers,
.tool--findings,
.tool--prompts,
.tool--references {
  list-style: none;
}

/* A label sits inside a running line, so it is marked by weight and colour
 * rather than by a box that would break the line's rhythm. */
.tool__label {
  color: var(--sienna);
  font-weight: 600;
}

/* A qualifier on the thing the line names: a category, a verdict, a header. */
.tool__header {
  padding: 0 0.35rem;
  border: 1px solid var(--rule);
  border-radius: 2px;
  color: var(--ink-faint);
  font-size: 0.9em;
}

.tool__question + .tool__question {
  margin-top: 0.8rem;
}

.tool__ask {
  display: flex;
  gap: 0.5rem;
  margin: 0 0 0.35rem;
  color: var(--ink);
}

.tool__options {
  margin: 0;
  padding: 0;
  list-style: none;
}

.tool__option {
  padding: 0.15rem 0 0.15rem 0.9rem;
  border-left: 2px solid var(--rule);
  color: var(--ink-faint);
}

.tool__option + .tool__option {
  margin-top: 0.3rem;
}

.tool__label + .tool__description::before {
  content: " — ";
}

/* What a reader chose, against what they were asked. The question is repeated
 * from the call above so the answer stands on its own, but it is the answer
 * that is being reported, so the question recedes to make room for it. */
.tool__answer + .tool__answer {
  margin-top: 0.6rem;
}

.tool__answer .tool__ask {
  display: block;
  margin: 0;
  color: var(--ink-faint);
}

.tool__chosen {
  margin: 0.1rem 0 0 0.9rem;
  border-left: 2px solid var(--sienna);
  padding-left: 0.5rem;
  color: var(--sienna);
  font-weight: 600;
}

/* An answer the reader typed took none of the options offered, so it is set as
 * the prose it is rather than as the label it isn't. */
.tool__chosen[data-typed] {
  border-left-color: var(--rule);
  color: var(--ink);
  font-style: italic;
  font-weight: 400;
}

.tool__finding + .tool__finding {
  margin-top: 0.7rem;
}

.tool__where {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
}

.tool__line {
  color: var(--ink-faint);
}

.tool__summary {
  margin: 0.2rem 0 0;
  color: var(--ink);
}

.tool__scenario {
  margin: 0.2rem 0 0;
  color: var(--ink-faint);
}

.tool__prompt {
  display: flex;
  gap: 0.5rem;
}

.tool__prompt + .tool__prompt {
  margin-top: 0.2rem;
}

.tool--prompts {
  padding-top: 0;
  border-top: 1px solid var(--rule-soft);
}

.tool__reference {
  color: var(--sienna);
}

/* A web search's own preamble, above the links it found. */
.tool__query {
  margin: 0 0 0.4rem;
  color: var(--ink-faint);
}

.tool__links {
  margin: 0;
  padding-left: 1.1rem;
}

.tool__links li {
  padding: 0.1rem 0;
}

/* The facts a background task answers with, before its output. */
.tool--facts {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.15rem 0.7rem;
}

.tool--facts dt {
  color: var(--ink-faint);
}

.tool--facts dd {
  margin: 0;
  color: var(--ink);
}

/* A prose body reads as the document it is, so it keeps the reading face rather
 * than the mono the structured bodies take, and its first and last paragraphs
 * shed the margins that would double the fold's own padding. */
.tool--prose > :first-child {
  margin-top: 0;
}

.tool--prose > :last-child {
  margin-bottom: 0;
}

/* --- Terminal colour: what a tool wrote its output in ----------------- */

.ansi--black { color: var(--ansi-black); }
.ansi--red { color: var(--ansi-red); }
.ansi--green { color: var(--ansi-green); }
.ansi--yellow { color: var(--ansi-yellow); }
.ansi--blue { color: var(--ansi-blue); }
.ansi--magenta { color: var(--ansi-magenta); }
.ansi--cyan { color: var(--ansi-cyan); }
.ansi--white { color: var(--ansi-white); }
.ansi--bright-black { color: var(--ansi-bright-black); }
.ansi--bright-red { color: var(--ansi-bright-red); }
.ansi--bright-green { color: var(--ansi-bright-green); }
.ansi--bright-yellow { color: var(--ansi-bright-yellow); }
.ansi--bright-blue { color: var(--ansi-bright-blue); }
.ansi--bright-magenta { color: var(--ansi-bright-magenta); }
.ansi--bright-cyan { color: var(--ansi-bright-cyan); }
.ansi--bright-white { color: var(--ansi-bright-white); }

.ansi--bg-black { background-color: var(--ansi-black); }
.ansi--bg-red { background-color: var(--ansi-red); }
.ansi--bg-green { background-color: var(--ansi-green); }
.ansi--bg-yellow { background-color: var(--ansi-yellow); }
.ansi--bg-blue { background-color: var(--ansi-blue); }
.ansi--bg-magenta { background-color: var(--ansi-magenta); }
.ansi--bg-cyan { background-color: var(--ansi-cyan); }
.ansi--bg-white { background-color: var(--ansi-white); }
.ansi--bg-bright-black { background-color: var(--ansi-bright-black); }
.ansi--bg-bright-red { background-color: var(--ansi-bright-red); }
.ansi--bg-bright-green { background-color: var(--ansi-bright-green); }
.ansi--bg-bright-yellow { background-color: var(--ansi-bright-yellow); }
.ansi--bg-bright-blue { background-color: var(--ansi-bright-blue); }
.ansi--bg-bright-magenta { background-color: var(--ansi-bright-magenta); }
.ansi--bg-bright-cyan { background-color: var(--ansi-bright-cyan); }
.ansi--bg-bright-white { background-color: var(--ansi-bright-white); }

/* A background needs a little room around the text it sits behind, or the
 * colour ends flush against the glyphs. */
.ansi[class*="ansi--bg-"] {
  padding: 0 0.15em;
  border-radius: 2px;
}

.ansi--bold {
  font-weight: 700;
}

.ansi--dim {
  opacity: 0.65;
}

.ansi--italic {
  font-style: italic;
}

.ansi--underline {
  text-decoration: underline;
}

/* --- Copy buttons: injected by the app script ------------------------ */

.folio pre {
  position: relative;
}

.copy-button {
  padding: 0.1rem 0.42rem;
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: var(--leaf);
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.12s ease;
}

/* A code / output block's copy button sits just inside its top-right corner,
 * over the block's top padding, always visible for discovery. */
.folio pre > .copy-button {
  position: absolute;
  top: 0.3rem;
  right: 0.5rem;
  z-index: 1;
  opacity: 0.6;
}

/* A fold's body butts against its summary, so its button rides the rule between
 * the two, the way a turn's button rides its leading block's edge. The block no
 * longer scrolls (its code does), so nothing clips the overhang. */
.folio details > pre > .copy-button {
  top: 0;
  transform: translateY(-50%);
}

.folio pre:hover > .copy-button,
.copy-button:focus-visible {
  opacity: 1;
}

/* The turn's copy button rides the panel's top edge, flush-right under the turn
 * number (which keeps the corner). It stays visible for discovery, muted until
 * the panel is hovered. The leading block's clearance below keeps it off text. */
.copy-button--meta {
  position: absolute;
  top: 2.3rem;
  right: 0;
  z-index: 2;
  opacity: 0.6;
  transform: translateY(-50%);
}

.turn:hover .copy-button--meta,
.copy-button--meta:focus-visible {
  opacity: 1;
}

/* Seat the always-on copy button centred on the leading block's top edge: the
 * shaded top border of a thinking block, or the (invisible) top of a prose
 * block, which land in the same place. The block drops by one button-height so
 * its edge sits under the button's centre, which makes the turn-number-to-button
 * gap equal the button-to-edge gap. A prose block also takes the same top
 * padding a thinking block has, so its first line lands where thinking text
 * would and never runs under the button. */
.turn:has(.copy-button--meta) > .turn__meta + * {
  margin-top: 1rem;
}

.turn:has(.copy-button--meta) > .turn__meta + .block--text {
  padding-top: 0.6rem;
}

.copy-button.is-done {
  color: var(--verdigris);
  border-color: var(--verdigris);
  opacity: 1;
}

/* --- Prose the markdown renderer emits ------------------------------- */

.folio :is(h1, h2, h3, h4, h5, h6) {
  margin: 1.3em 0 0.5em;
  font-weight: 600;
  line-height: 1.3;
  color: var(--ink);
}

/* Blackletter is a display face at one weight: reserve it for the larger
 * headings and let it stand at its native weight rather than faux-bolded. */
.folio :is(h1, h2, h3) {
  font-family: var(--display);
  font-weight: 400;
}

.folio h1 {
  font-size: 1.6rem;
}

.folio h2 {
  font-size: 1.2rem;
}

.folio h3 {
  font-size: 1.05rem;
}

.folio :is(h4, h5, h6) {
  font-size: 1rem;
}

.folio p {
  margin: 0.6em 0;
}

.folio a {
  color: var(--lapis);
  text-underline-offset: 0.15em;
  text-decoration-color: color-mix(in srgb, var(--lapis) 40%, transparent);
}

.folio a:hover {
  text-decoration-color: currentColor;
}

.folio blockquote {
  margin: 0.9em 0;
  padding: 0.1em 1rem;
  border-left: 3px solid var(--rule);
  color: var(--ink-soft);
}

.folio ul,
.folio ol {
  padding-left: 1.4rem;
}

.folio li {
  margin: 0.15em 0;
}

.folio li::marker {
  color: var(--gold);
}

.folio hr {
  margin: 1.5em 0;
  border: none;
  text-align: center;
}

.folio hr::before {
  content: "❧";
  color: var(--gold);
  font-size: 0.95rem;
}

.folio table {
  margin: 1em 0;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.folio :is(th, td) {
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--rule);
  text-align: left;
}

.folio th {
  background: var(--leaf-sunk);
  font-weight: 600;
}

/* Inline code, distinct from fenced blocks. */
.folio :not(pre) > code {
  padding: 0.1em 0.35em;
  background: var(--leaf-sunk);
  border: 1px solid var(--rule-soft);
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 0.85em;
}

.folio pre {
  padding: 0.7rem 0.9rem;
  background: var(--leaf-sunk);
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius);
  font-size: 0.82rem;
  line-height: 1.5;
}

/* The code, not the block around it, is what scrolls sideways: an absolutely
 * positioned child of a scroll container travels with the content, so a copy
 * button anchored to a scrolling block would drift off the corner and over the
 * text. Sinking the overflow one level leaves the block a still frame to pin
 * to. */
.folio pre > code {
  display: block;
  overflow-x: auto;
}

.folio pre code {
  font-family: var(--mono);
}

/* --- Syntax highlighting: the canonical scope roots ------------------ */

pre.syntax-highlighting {
  color: var(--ink);
}

.ink-comment {
  color: var(--syn-comment);
  font-style: italic;
}

.ink-string {
  color: var(--syn-string);
}

.ink-constant {
  color: var(--syn-constant);
}

.ink-keyword {
  color: var(--syn-keyword);
}

.ink-storage {
  color: var(--syn-storage);
}

.ink-entity {
  color: var(--syn-entity);
}

.ink-variable {
  color: var(--syn-variable);
}

.ink-support {
  color: var(--syn-support);
}

/* Operators and structural punctuation read as ink, not as color. */
.ink-keyword.ink-operator,
.ink-punctuation {
  color: var(--ink-soft);
}

/* Markup scopes (Markdown, diff) carry weight and hue rather than a palette. */
.ink-markup.ink-bold {
  font-weight: 700;
}

.ink-markup.ink-italic {
  font-style: italic;
}

.ink-markup.ink-heading {
  color: var(--rubric);
  font-weight: 700;
}

.ink-markup.ink-raw {
  color: var(--sienna);
}

.ink-markup.ink-inserted {
  color: var(--syn-inserted);
}

.ink-markup.ink-deleted {
  color: var(--syn-deleted);
}