/* The look, in the tokens' words. Every value that is a choice — a colour, a
   space, a radius, a size — is a var(--…) from /tokens.css, which
   design/tokens.json compiles to at boot; `bun run lint:design` refuses a raw
   colour here. Light and dark are the tokens' business, not this file's. */

/* ── The page ───────────────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-fg);
  font: var(--text-base) / var(--leading-body) var(--font-sans);
  -webkit-font-smoothing: antialiased;
}
h1,
h2,
p {
  margin: 0;
}
a {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}
code,
kbd,
.mono {
  font-family: var(--font-mono);
  font-size: 0.88em;
}
kbd {
  display: inline-block;
  padding: 0 0.35em;
  border: 1px solid var(--color-line);
  border-bottom-width: 2px;
  border-radius: var(--radius-sm);
  color: var(--color-muted);
  font-size: var(--text-xs);
  line-height: 1.6;
}
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}
[hidden] {
  display: none !important;
}
.muted {
  color: var(--color-muted);
}
.small {
  font-size: var(--text-sm);
}
.pad {
  padding: var(--space-2) var(--space-3);
}
.row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.row.center {
  justify-content: center;
}
.pill {
  display: inline-block;
  padding: 0 0.5rem;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-muted);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
}
svg {
  flex: none;
}

/* ── Controls: at least 44px on a side where a finger meets them ───── */
.input {
  min-width: 0;
  min-height: var(--size-tap);
  padding: 0 var(--space-3);
  font: inherit;
  font-size: max(16px, var(--text-base));
  color: inherit;
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}
.input::placeholder {
  color: var(--color-muted);
}
.button {
  min-height: var(--size-tap);
  padding: 0 var(--space-4);
  font: inherit;
  font-weight: 600;
  color: var(--color-accent-fg);
  background: var(--color-accent);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}
.button:hover {
  filter: brightness(1.08);
}
.button svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}
.button-quiet {
  color: var(--color-muted);
  background: transparent;
  padding: 0 var(--space-3);
}
.button-quiet:hover {
  color: var(--color-fg);
  background: var(--color-hover);
  filter: none;
}
.button-big {
  min-height: 3rem;
  padding: 0 var(--space-5);
  font-size: var(--text-lg);
}
.button-wide {
  width: 100%;
}
.icon-button {
  display: inline-grid;
  place-items: center;
  width: var(--size-tap);
  height: var(--size-tap);
  padding: 0;
  color: var(--color-muted);
  background: transparent;
  border: 0;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-decoration: none;
}
.icon-button svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.icon-button:hover,
.icon-button.is-on {
  color: var(--color-fg);
  background: var(--color-hover);
}
.icon-button.is-on {
  color: var(--color-accent);
}
.icon-button.danger:hover {
  color: var(--color-danger);
}
form {
  margin: 0;
}

/* ── The shell: notes | the note | its links ─────────────────────────── */
.app-page {
  height: 100dvh;
  overflow: hidden;
}
.shell {
  display: grid;
  grid-template-columns: var(--size-left) minmax(0, 1fr) var(--size-right);
  height: 100dvh;
}
.shell[data-has-right="false"] {
  grid-template-columns: var(--size-left) minmax(0, 1fr);
}
.left,
.right {
  min-height: 0;
  background: var(--color-surface);
  overflow-y: auto;
  overscroll-behavior: contain;
}
.left {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--color-line);
}
.right {
  border-left: 1px solid var(--color-line);
  padding: var(--space-3) var(--space-4) var(--space-6);
}
.center {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}

/* The left. */
.left-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-2) 0 var(--space-4);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-fg);
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
  min-height: var(--size-tap);
}
.brand svg {
  width: 22px;
  height: 22px;
  color: var(--color-accent);
}
.actions {
  display: flex;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
}
.actions form:first-child {
  flex: 1;
}
.find {
  position: relative;
  margin: 0 var(--space-3) var(--space-2);
}
.find > svg {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  width: 16px;
  height: 16px;
  transform: translateY(-50%);
  fill: none;
  stroke: var(--color-muted);
  stroke-width: 2;
  pointer-events: none;
}
.input-find {
  width: 100%;
  padding-left: 2.1rem;
  padding-right: 3rem;
  background: var(--color-bg);
}
.find .hint {
  position: absolute;
  right: var(--space-2);
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
}
.files {
  flex: 1;
  padding: 0 var(--space-2) var(--space-4);
}
.section {
  margin: var(--space-4) var(--space-2) var(--space-1);
  color: var(--color-muted);
  font-size: var(--text-xs);
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.count {
  margin-left: 0.3em;
  font-weight: 500;
  letter-spacing: 0;
  opacity: 0.8;
}
.file-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.file {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  min-height: 2.25rem;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--color-fg);
  text-decoration: none;
  line-height: var(--leading-tight);
  align-items: center;
}
.file:hover {
  background: var(--color-hover);
}
.file.is-active {
  background: var(--color-active);
  font-weight: 600;
}
.file-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.file-when {
  color: var(--color-muted);
  font-size: var(--text-xs);
  font-variant-numeric: tabular-nums;
}
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
}
.left-foot {
  position: sticky;
  bottom: 0;
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-2) var(--space-2) var(--space-4);
  border-top: 1px solid var(--color-line);
  background: var(--color-surface);
}
.you {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--color-muted);
  font-size: var(--text-sm);
}

/* The toolbar above the note. */
.toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 3.25rem;
  padding: var(--space-1) var(--space-3);
  border-bottom: 1px solid var(--color-line);
}
.crumbs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 1;
  min-width: 0;
  font-size: var(--text-sm);
  color: var(--color-muted);
  white-space: nowrap;
}
.crumbs a {
  color: var(--color-muted);
  text-decoration: none;
}
.crumbs a:hover {
  color: var(--color-fg);
}
.crumb-here {
  color: var(--color-fg);
  overflow: hidden;
  text-overflow: ellipsis;
}
.tools {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}
.status {
  min-width: 4.5rem;
  text-align: right;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 16rem;
}
.status[data-kind="error"] {
  color: var(--color-danger);
}
.segmented {
  display: inline-flex;
  padding: 2px;
  margin-right: var(--space-2);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}
.segmented button {
  min-height: 2.25rem;
  padding: 0 var(--space-3);
  font: inherit;
  font-size: var(--text-sm);
  color: var(--color-muted);
  background: transparent;
  border: 0;
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.segmented button:hover {
  color: var(--color-fg);
}
.segmented button[aria-pressed="true"] {
  color: var(--color-fg);
  background: var(--color-hover);
  font-weight: 600;
}
.only-narrow,
.only-narrow-right {
  display: none;
}

/* ── The note: a title, then the words and the reading view ──────────── */
.editor {
  flex: 1;
  min-height: 0;
  display: flex;
}
.sheet {
  flex: 1;
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
.title-input {
  width: 100%;
  margin: 0;
  padding: var(--space-5) max(var(--space-5), calc((100% - var(--size-read)) / 2)) var(--space-2);
  font: 700 var(--text-2xl) / var(--leading-tight) var(--font-sans);
  letter-spacing: -0.02em;
  color: var(--color-fg);
  background: transparent;
  border: 0;
  outline: 0;
}
.title-input:focus-visible {
  outline: 0;
  box-shadow: inset 3px 0 0 var(--color-accent);
}
.panes {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}
.panes[data-mode="split"] {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}
.panes[data-mode="split"] .source,
.panes[data-mode="split"] .preview {
  padding-inline: var(--space-5);
}
.sheet:has(.panes[data-mode="split"]) .title-input {
  padding-inline: var(--space-5);
}
.panes[data-mode="split"] .preview {
  border-left: 1px solid var(--color-line);
}
.panes[data-mode="read"] .source,
.panes[data-mode="edit"] .preview {
  display: none;
}
.source {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: var(--space-3) max(var(--space-5), calc((100% - var(--size-read)) / 2)) 40vh;
  resize: none;
  font: 1.0625rem / 1.7 var(--font-sans);
  tab-size: 2;
  color: var(--color-fg);
  background: transparent;
  border: 0;
  outline: 0;
  caret-color: var(--color-accent);
}
.source:focus-visible {
  outline: 0;
}
.source::placeholder {
  color: var(--color-muted);
}
.preview {
  min-height: 0;
  overflow-y: auto;
  padding: var(--space-3) max(var(--space-5), calc((100% - var(--size-read)) / 2)) 40vh;
}

/* ── Markdown, read ───────────────────────────────────────────────────── */
.md {
  font-size: 1.0625rem;
  line-height: 1.7;
  overflow-wrap: anywhere;
}
.md > :first-child {
  margin-top: 0;
}
.md p,
.md ul,
.md ol,
.md pre,
.md blockquote,
.md .callout,
.md .table {
  margin: 0 0 var(--space-4);
}
.md h1,
.md h2,
.md h3,
.md h4,
.md h5,
.md h6 {
  margin: var(--space-5) 0 var(--space-2);
  line-height: var(--leading-tight);
  letter-spacing: -0.015em;
  scroll-margin-top: var(--space-4);
}
.md h1 {
  font-size: 1.85rem;
}
.md h2 {
  font-size: 1.45rem;
}
.md h3 {
  font-size: 1.2rem;
}
.md h4,
.md h5,
.md h6 {
  font-size: 1rem;
}
.md ul,
.md ol {
  padding-left: 1.5rem;
}
.md li {
  margin: 0.15rem 0;
}
.md li > ul,
.md li > ol {
  margin: 0.15rem 0 0;
}
.md li::marker {
  color: var(--color-muted);
}
.md li.task {
  list-style: none;
  margin-left: -1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: baseline;
}
.md li.task > ul,
.md li.task > ol {
  flex-basis: 100%;
  padding-left: 3rem;
}
.check {
  flex: none;
  position: relative;
  top: 0.18em;
  width: 1.05rem;
  height: 1.05rem;
  padding: 0;
  border: 1.5px solid var(--color-muted);
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
}
.check::after {
  content: "";
  position: absolute;
  inset: -0.7rem;
}
.check[aria-checked="true"] {
  background: var(--color-accent);
  border-color: var(--color-accent);
}
.check[aria-checked="true"]::before {
  content: "";
  position: absolute;
  left: 0.3rem;
  top: 0.08rem;
  width: 0.3rem;
  height: 0.58rem;
  border: solid var(--color-accent-fg);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.md .done {
  color: var(--color-muted);
  text-decoration: line-through;
}
.md code {
  padding: 0.1em 0.35em;
  color: var(--color-code-fg);
  background: var(--color-code-bg);
  border-radius: var(--radius-sm);
}
.md pre {
  padding: var(--space-3) var(--space-4);
  overflow-x: auto;
  background: var(--color-code-bg);
  border-radius: var(--radius-md);
  line-height: 1.55;
}
.md pre code {
  padding: 0;
  color: var(--color-fg);
  background: none;
}
.md blockquote {
  padding: 0 0 0 var(--space-4);
  color: var(--color-muted);
  border-left: 3px solid var(--color-line);
}
.md blockquote > :last-child,
.md .callout > :last-child {
  margin-bottom: 0;
}
.md hr {
  margin: var(--space-5) 0;
  border: 0;
  border-top: 1px solid var(--color-line);
}
.md mark {
  padding: 0 0.15em;
  color: var(--color-fg);
  background: var(--color-mark-bg);
  border-radius: 3px;
}
.md del {
  color: var(--color-muted);
}
.md a {
  text-decoration: none;
}
.md a:hover {
  text-decoration: underline;
}
.wikilink {
  font-weight: 550;
}
.unresolved {
  color: var(--color-link-missing);
  text-decoration: underline dashed 1px;
  text-underline-offset: 0.2em;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.05em 0.55em;
  color: var(--color-tag-fg);
  background: var(--color-tag-bg);
  border-radius: var(--radius-pill);
  font-size: 0.875em;
  text-decoration: none;
  line-height: 1.6;
}
.tag:hover {
  text-decoration: none;
  filter: brightness(1.06);
}
.tag-cloud .tag {
  min-height: 1.75rem;
}
.md .table {
  overflow-x: auto;
}
.md table {
  border-collapse: collapse;
  min-width: 50%;
  font-size: 0.95em;
}
.md th,
.md td {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-line);
  text-align: left;
  vertical-align: top;
}
.md th {
  background: var(--color-surface);
  font-weight: 650;
}
.callout {
  padding: var(--space-3) var(--space-4);
  color: var(--color-callout-info);
  border-left: 3px solid currentColor;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, currentColor 9%, transparent);
}
.callout > :not(.callout-title) {
  color: var(--color-fg);
}
.callout-title {
  margin: 0 0 var(--space-1) !important;
  font-weight: 650;
}
.callout-tip,
.callout-success {
  color: var(--color-callout-tip);
}
.callout-warning,
.callout-question,
.callout-todo {
  color: var(--color-callout-warning);
}
.callout-danger,
.callout-bug,
.callout-failure {
  color: var(--color-callout-danger);
}
.callout-quote,
.callout-example,
.callout-abstract {
  color: var(--color-accent);
}

/* ── The right: graph, backlinks, links, outline ─────────────────────── */
.panel {
  padding: var(--space-2) 0 var(--space-3);
  border-bottom: 1px solid var(--color-line);
}
.panel:last-child {
  border-bottom: 0;
}
.panel .section {
  margin: var(--space-2) 0;
}
.local-graph {
  display: block;
  width: 100%;
  height: 11rem;
  border-radius: var(--radius-md);
  background: var(--color-bg);
  touch-action: none;
}
.link-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.link-list li {
  display: grid;
  padding: var(--space-1) 0;
}
.link-list a {
  text-decoration: none;
  font-weight: 550;
  min-height: 1.75rem;
  display: inline-flex;
  align-items: center;
}
.link-list a:hover {
  text-decoration: underline;
}
.context {
  color: var(--color-muted);
  font-size: var(--text-sm);
  line-height: 1.45;
}
.outline {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--text-sm);
}
.outline .depth-1 {
  padding-left: 0.9rem;
}
.outline .depth-2 {
  padding-left: 1.8rem;
}
.outline .depth-3,
.outline .depth-4,
.outline .depth-5 {
  padding-left: 2.7rem;
}
.outline a {
  display: block;
  padding: 0.2rem 0;
  color: var(--color-muted);
  text-decoration: none;
}
.outline a:hover {
  color: var(--color-fg);
}
.meta p {
  margin: 0 0 var(--space-1);
}

/* ── Pages without a note ─────────────────────────────────────────────── */
.empty-state {
  margin: auto;
  max-width: 30rem;
  padding: var(--space-6) var(--space-4);
  text-align: center;
  display: grid;
  gap: var(--space-4);
  justify-items: center;
}
.empty-state h1 {
  font-size: var(--text-xl);
}
.mark {
  color: var(--color-accent);
}
.mark svg {
  width: 56px;
  height: 56px;
}
.results {
  overflow-y: auto;
  padding: var(--space-5) max(var(--space-5), calc((100% - var(--size-read)) / 2)) var(--space-6);
}
.results-head {
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
}
.hits {
  list-style: none;
  margin: 0;
  padding: 0;
}
.hits a {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3);
  margin: 0 calc(-1 * var(--space-3));
  border-radius: var(--radius-md);
  color: var(--color-fg);
  text-decoration: none;
}
.hits a:hover {
  background: var(--color-hover);
}
.hits mark {
  color: var(--color-fg);
  background: var(--color-mark-bg);
  border-radius: 3px;
}
.graph-stage {
  position: relative;
  flex: 1;
  min-height: 0;
}
.big-graph {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}
.graph-help {
  position: absolute;
  left: var(--space-4);
  bottom: var(--space-3);
  pointer-events: none;
}

/* Signed out. */
.landing-page {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  background: radial-gradient(60rem 30rem at 50% -10%, var(--color-active), transparent 70%), var(--color-bg);
}
.landing {
  padding: var(--space-6) var(--space-4);
}
.landing-card {
  max-width: 30rem;
  display: grid;
  gap: var(--space-4);
  justify-items: center;
  text-align: center;
}
.landing-card h1 {
  font-size: 2.5rem;
  letter-spacing: -0.03em;
}
.lede {
  font-size: var(--text-lg);
  color: var(--color-muted);
}

/* Sign up, log in, account. */
.auth {
  width: min(24rem, 100%);
  justify-items: stretch;
  text-align: left;
}
.auth h1 {
  font-size: var(--text-2xl);
  text-align: center;
}
.auth .mark {
  justify-self: center;
}
.auth > p {
  text-align: center;
}
.field {
  display: grid;
  gap: var(--space-1);
  font-weight: 600;
  font-size: var(--text-sm);
}
.field .input {
  width: 100%;
  font-weight: 400;
}
.auth-error {
  padding: var(--space-2) var(--space-3);
  color: var(--color-danger);
  border: 1px solid currentColor;
  border-radius: var(--radius-md);
  text-align: center;
}
.settings {
  display: grid;
  gap: var(--space-3);
  max-width: 24rem;
  margin-top: var(--space-5);
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-line);
}
.button-danger {
  background: var(--color-danger);
  color: var(--color-bg);
}

/* ── Overlays: the switcher, [[ completion, the toast ─────────────────── */
.palette {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: grid;
  justify-items: center;
  align-items: start;
  padding: 12vh var(--space-4) var(--space-4);
  background: var(--color-scrim);
}
.palette-box {
  width: min(38rem, 100%);
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 64px var(--color-shadow);
}
.palette-input {
  width: 100%;
  min-height: 3.25rem;
  padding: 0 var(--space-4);
  border: 0;
  border-bottom: 1px solid var(--color-line);
  border-radius: 0;
  background: transparent;
  outline: 0;
}
.palette-list {
  list-style: none;
  margin: 0;
  padding: var(--space-2);
  max-height: min(24rem, 55vh);
  overflow-y: auto;
}
.palette-item,
.palette-empty {
  display: flex;
  align-items: center;
  min-height: var(--size-tap);
  padding: 0 var(--space-3);
  border-radius: var(--radius-md);
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.palette-item[aria-selected="true"] {
  background: var(--color-active);
}
.palette-item.is-create {
  color: var(--color-accent);
  font-weight: 600;
}
.palette-help {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  align-items: center;
  padding: var(--space-2) var(--space-4);
  border-top: 1px solid var(--color-line);
}
.suggest {
  position: fixed;
  z-index: 20;
  list-style: none;
  margin: 0;
  padding: var(--space-1);
  min-width: 14rem;
  max-width: min(24rem, calc(100vw - 1rem));
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 32px var(--color-shadow);
}
.suggest-item {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.suggest-item[aria-selected="true"] {
  background: var(--color-active);
}
.scrim {
  display: none;
}

/* A word from the last request, shown once, gone in a moment. */
.toast {
  position: fixed;
  z-index: 40;
  left: 50%;
  bottom: var(--space-5);
  transform: translateX(-50%);
  max-width: calc(100% - 2 * var(--space-4));
  padding: var(--space-3) var(--space-4);
  color: var(--color-toast-fg);
  background: var(--color-toast-bg);
  border-radius: var(--radius-pill);
  box-shadow: 0 8px 24px var(--color-shadow);
  animation: toast 6s forwards;
}
@keyframes toast {
  0%,
  85% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    visibility: hidden;
  }
}

/* ── Narrower: the links slide in from the right ──────────────────────── */
@media (max-width: 1250px) {
  .shell,
  .shell[data-has-right="true"] {
    grid-template-columns: var(--size-left) minmax(0, 1fr);
  }
  .right {
    position: fixed;
    z-index: 15;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(var(--size-right), 88vw);
    transform: translateX(100%);
    transition: transform 0.2s ease;
    box-shadow: 0 0 40px var(--color-shadow);
  }
  .shell[data-open="right"] .right {
    transform: none;
  }
  .only-narrow-right {
    display: inline-grid;
  }
  .scrim:not([hidden]) {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 12;
    background: var(--color-scrim);
  }
}

/* ── A phone: the notes slide in from the left, one pane at a time ────── */
@media (max-width: 900px) {
  .shell,
  .shell[data-has-right="true"],
  .shell[data-has-right="false"] {
    grid-template-columns: minmax(0, 1fr);
  }
  .left {
    position: fixed;
    z-index: 15;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(var(--size-left), 88vw);
    transform: translateX(-100%);
    transition: transform 0.2s ease;
    box-shadow: 0 0 40px var(--color-shadow);
  }
  .shell[data-open="left"] .left {
    transform: none;
  }
  .only-narrow {
    display: inline-grid;
  }
  .only-wide {
    display: none;
  }
  .panes[data-mode="split"] {
    grid-template-columns: minmax(0, 1fr);
  }
  .panes[data-mode="split"] .preview {
    display: none;
  }
  .status {
    min-width: 0;
    max-width: 6rem;
  }
  .toolbar {
    padding: var(--space-1);
    gap: var(--space-1);
  }
  .segmented {
    margin-right: 0;
  }
  .segmented button {
    min-height: 2.5rem;
  }
  .title-input,
  .sheet:has(.panes[data-mode="split"]) .title-input,
  .panes[data-mode] .source,
  .panes[data-mode] .preview,
  .results {
    padding-inline: var(--space-4);
  }
  .title-input {
    font-size: var(--text-xl);
    padding-top: var(--space-4);
  }
}
@media (max-width: 520px) {
  .toolbar .crumbs {
    display: none;
  }
  .tools {
    flex: 1;
    justify-content: flex-end;
  }
}

/* Motion is a courtesy: whoever asked for less gets none. */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .toast {
    animation: none;
  }
}