/* App shell styles: paper and ink with neutral tints. The editor's own styles live in /editor.css. */

/* Inter (SIL OFL 1.1), see src/client/fonts/OFL.txt. */
@font-face {
  font-family: "Inter";
  font-style: italic;
  font-weight: 100 900;
  font-display: swap;
  src: url("/dist/fonts/Inter-italic-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Inter";
  font-style: italic;
  font-weight: 100 900;
  font-display: swap;
  src: url("/dist/fonts/Inter-italic-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("/dist/fonts/Inter-roman-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("/dist/fonts/Inter-roman-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  /* Surfaces: paper for the page, neutral (very slightly cool) tints for the sidebar, drawer and hovers. */
  --paper: #fcfcfb;
  --paper-2: #f4f4f5;
  --paper-3: #ebebed;
  --tint-hover: #ececee;
  --tint-active: #e4e4e7;
  --code-bg: #f1f1f2;
  --ink: #1d1e22;
  --ink-2: #3f3f46;
  /* muted and grey-2: small grey text, >= 4.5:1 on paper, the tints and the code background */
  --muted: #62626a;
  --grey-2: #62626a;
  /* grey: borders of controls, >= 3:1 on paper */
  --grey: #8b8b93;
  /* hairlines around raised surfaces (menus, dialogs, secondary buttons) */
  --line: rgba(24, 24, 27, 0.12);
  --line-soft: rgba(24, 24, 27, 0.07);
  --blue: #296d9a;
  --focus: 0 0 0 2px var(--paper), 0 0 0 4px var(--blue);
  /* soft warm yellow: highlights and warnings (no red anywhere) */
  --warn: #e0a800;
  --warn-soft: rgba(245, 197, 66, 0.26);
  --radius-sm: 4px;
  --radius: 6px;
  --radius-lg: 8px;
  --shadow-pop: 0 1px 2px rgba(24, 24, 27, 0.06), 0 6px 20px rgba(24, 24, 27, 0.1);
  --shadow-modal: 0 2px 8px rgba(24, 24, 27, 0.06), 0 24px 64px rgba(24, 24, 27, 0.18);
  --sidebar-w: 272px;
  --history-w: 380px;
  --header-h: 52px;
  /* Type. Swap faces here; the editor reads the same tokens (with its own fallbacks). */
  --font-ui: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-text: var(--font-ui);
  --font-head: var(--font-ui);
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  /* small labels (notebook names, History, table heads) */
  --label-weight: 600;
  --label-size: 12px;
  --label-tracking: 0.005em;
  --label-case: none;
  /* headings in the shell (empty state, dialogs) */
  --head-weight: 650;
  --head-stretch: 100%;
  --head-tracking: -0.02em;
  /* slab logo */
  --logo-font: var(--font-ui);
  --logo-weight: 800;
  --logo-stretch: 100%;
  --logo-tracking: 0.04em;
  /* note text and headings (read by editor.css) */
  --text-size: 16px;
  --text-leading: 1.6;
  --h-weight: 650;
  --h1-weight: 700;
  --h3-weight: 600;
  --h-stretch: 100%;
  --h1-stretch: 100%;
  --h3-stretch: 100%;
  --h4-stretch: 100%;
  --h-tracking: -0.017em;
  --h1-tracking: -0.024em;
  --h2-tracking: -0.02em;
  --h3-tracking: -0.01em;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

#app {
  height: 100%;
}

button,
input {
  font: inherit;
  color: inherit;
}

a {
  color: var(--blue);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

kbd {
  font-family: var(--font-mono);
}

mark {
  background: var(--warn-soft);
  color: inherit;
}

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

/* thin, quiet scrollbars on the scrolling panes */
.sb-tree,
.doc-body,
.history-body,
.modal {
  scrollbar-width: thin;
  scrollbar-color: #cfcfd4 transparent;
}

.label {
  font: var(--label-weight) var(--label-size)/1.2 var(--font-ui);
  letter-spacing: var(--label-tracking);
  text-transform: var(--label-case);
}

.muted {
  color: var(--muted);
}

.pad {
  padding: 12px 18px;
}

.boot,
.fatal {
  display: grid;
  place-items: center;
  height: 100%;
  color: var(--muted);
}

/* ---------- slab logo (the one inverted, square-edged element) ---------- */

.slab-blk {
  display: inline-block;
  padding: 9px 11px 8px;
  background: var(--ink);
  color: var(--paper);
  font: var(--logo-weight) 22px/1 var(--logo-font);
  font-stretch: var(--logo-stretch);
  letter-spacing: var(--logo-tracking);
  text-decoration: none;
}
.slab-sm {
  padding: 6px 8px 5px;
  font-size: 14px;
}

/* ---------- buttons ---------- */

/* Secondary (default): paper with a hairline. Primary: ink. Quiet: no frame, a tint on hover. */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 32px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: 0 1px 1px rgba(24, 24, 27, 0.04);
  color: var(--ink);
  cursor: pointer;
  font: 550 13px/1 var(--font-ui);
  white-space: nowrap;
  text-decoration: none;
  transition: background-color 0.12s, border-color 0.12s;
}
.btn:hover:not(:disabled) {
  background: var(--paper-2);
  border-color: rgba(24, 24, 27, 0.18);
}
.btn:active:not(:disabled) {
  background: var(--paper-3);
}
.btn:disabled {
  color: var(--muted);
  cursor: default;
  box-shadow: none;
  opacity: 0.7;
}
.btn-primary,
.btn-danger {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}
.btn-primary:hover:not(:disabled),
.btn-danger:hover:not(:disabled) {
  border-color: #000;
  background: #000;
}
.btn-primary:active:not(:disabled),
.btn-danger:active:not(:disabled) {
  background: var(--ink-2);
}
.btn-primary:disabled {
  border-color: var(--paper-3);
  background: var(--paper-3);
  color: var(--muted);
  opacity: 1;
}
.btn-tab {
  height: 30px;
  padding: 0 10px;
  border-color: transparent;
  background: transparent;
  box-shadow: none;
  font: 550 13px/1 var(--font-ui);
}
.btn-tab:hover:not(:disabled) {
  border-color: transparent;
  background: var(--paper-2);
}
.btn-tab.active,
.btn-tab.active:hover:not(:disabled) {
  border-color: transparent;
  background: var(--tint-active);
  color: var(--ink);
}
.btn-small {
  height: 28px;
  padding: 0 10px;
  font-size: 12.5px;
}

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
}
.icon-btn:hover,
.icon-btn[aria-expanded="true"] {
  background: var(--tint-active);
  color: var(--ink);
}
.icon-btn:focus-visible {
  outline-offset: 0;
}

.quiet-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  border: 0;
  background: none;
  color: var(--ink);
  cursor: pointer;
  font: 550 13.5px/1.2 var(--font-ui);
}
.quiet-btn:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}
.quiet-btn .plus {
  /* A drawn plus (two bars in a fixed square) rather than the "+" glyph, so it centres exactly on the text. */
  position: relative;
  flex: none;
  width: 10px;
  height: 10px;
}
.quiet-btn .plus::before,
.quiet-btn .plus::after {
  content: "";
  position: absolute;
  background: currentColor;
}
.quiet-btn .plus::before {
  left: 0;
  right: 0;
  top: 4px;
  height: 2px;
}
.quiet-btn .plus::after {
  top: 0;
  bottom: 0;
  left: 4px;
  width: 2px;
}

.link-btn {
  padding: 0;
  border: 0;
  background: none;
  color: var(--muted);
  cursor: pointer;
  font: 550 12.5px/1.2 var(--font-ui);
}
.link-btn:hover {
  color: var(--ink);
}

/* chevrons, drawn with two borders */
.chev {
  flex: none;
  display: inline-block;
  width: 6px;
  height: 6px;
  margin: 0 5px 0 3px;
  border: solid currentColor;
  border-width: 0 1.5px 1.5px 0;
  transform: rotate(-45deg);
  transition: transform 0.12s;
}
[aria-expanded="true"] > .chev,
.chev-down {
  transform: translateY(-2px) rotate(45deg);
}

/* ---------- badges & avatars ---------- */

.badge {
  flex: none;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  background: var(--tint-active);
  color: var(--ink-2);
  font: 550 10.5px/1.3 var(--font-ui);
}
.badge-error {
  background: var(--warn-soft);
  color: var(--ink);
}

.avatar {
  --c: #888;
  position: relative;
  display: inline-grid;
  place-items: center;
  flex: none;
  background: var(--c);
  color: #fff;
  font-weight: 650;
  letter-spacing: 0.02em;
  user-select: none;
}
.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.avatar-md {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  font-size: 10.5px;
}
.avatar-md img {
  border-radius: inherit;
}
.agent-badge {
  position: absolute;
  right: -5px;
  bottom: -5px;
  padding: 0 3px;
  border-radius: 3px;
  background: var(--ink);
  color: var(--paper);
  font-size: 7.5px;
  letter-spacing: 0.06em;
  line-height: 11px;
  box-shadow: 0 0 0 1.5px var(--paper);
}
.avatar-more {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  background: var(--tint-active);
  color: var(--ink-2);
  font-size: 10.5px;
}

/* ---------- inputs ---------- */

input[type="text"],
input[type="search"] {
  height: 34px;
  padding: 0 10px;
  border: 1px solid var(--grey);
  border-radius: var(--radius);
  background: var(--paper);
  outline: none;
  font-size: 14px;
  transition: border-color 0.12s, box-shadow 0.12s;
}
input[type="text"]:hover,
input[type="search"]:hover {
  border-color: var(--ink-2);
}
input[type="text"]:focus,
input[type="search"]:focus {
  border-color: var(--blue);
}
input[type="text"]:focus-visible,
input[type="search"]:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(41, 109, 154, 0.22);
}
input[type="search"]::-webkit-search-cancel-button {
  display: none;
}
input::placeholder {
  color: var(--muted);
}
input[type="checkbox"],
input[type="radio"] {
  margin: 0;
  accent-color: var(--ink);
}

/* ---------- home and /start (signed out) ---------- */

.home {
  position: relative;
  min-height: 100%;
}
/* Above the fold on the home page: blank paper for the pencils (src/client/doodle). */
.home-hero {
  position: relative;
  height: max(100vh, 820px);
  height: max(100svh, 820px);
  user-select: none;
  -webkit-user-select: none;
}
.home-hero .home-top {
  position: relative;
  z-index: 2;
  padding: 28px 36px 0;
}
.home-hint {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 28px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}
.home-hero + .home-page {
  padding-top: 0;
}
.home-hero + .home-page .home-main {
  margin-top: 56px;
}
/* exactly as tall as the page's content (the doodle measures it without the canvas) */
.doodle-ink {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  pointer-events: none;
  mix-blend-mode: multiply;
}
.doodle-gl {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 30;
  pointer-events: none;
}
.doodle-labels {
  position: fixed;
  inset: 0;
  z-index: 31;
  overflow: hidden;
  pointer-events: none;
}
.doodle-label {
  position: absolute;
  top: 0;
  left: 0;
  padding: 2px 7px 3px;
  border-radius: 999px;
  background: var(--c, var(--ink-2));
  color: #fff;
  font-size: 11.5px;
  font-weight: 550;
  line-height: 1.3;
  white-space: nowrap;
  opacity: 0.92;
}
.doodle-label span {
  margin-left: 5px;
  opacity: 0.75;
  font-weight: 450;
}
.home .home-page {
  position: relative;
  z-index: 2;
}
.home.doodling,
.home.doodling * {
  user-select: none;
  -webkit-user-select: none;
}
/* Your cursor is a pencil, except over things you click, type in or select (the doodle's INTERACTIVE list hides
   the pencil over exactly these, so there's always one or the other). In a layer so any cursor the app or the
   editor sets on an element still wins. */
@layer doodle {
  .doodle-on,
  .doodle-on * {
    cursor: none;
  }
  .doodle-on :is(a, button, label, summary, [role="button"]),
  .doodle-on :is(a, button, label, summary, [role="button"]) * {
    cursor: pointer;
  }
  .doodle-on :is(input, textarea, select, [contenteditable]),
  .doodle-on :is(.home-editor, .home-caption, .home-about, .form-error),
  .doodle-on :is(.home-editor, .home-caption, .home-about, .form-error) * {
    cursor: text;
  }
}
.home-page {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 40px 72px;
}
.start .home-page {
  max-width: 840px;
}
/* line the logo up with the guide's text column */
.start .home-top {
  padding: 0 24px 0 calc(var(--mde-gutter, 33px) + 16px);
}
.home-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.home-top .slab-blk {
  font-size: 18px;
  padding: 8px 10px 7px;
}
.home-nav a:not(.btn) {
  color: var(--ink-2);
  font-weight: 550;
  text-decoration: none;
}
.home-nav a:not(.btn):hover {
  color: var(--ink);
}
.home-main {
  margin-top: clamp(32px, 8vh, 80px);
}
/* The example note: the real editor on a faint tint. */
.home-editor {
  border-radius: var(--radius-lg);
  background: var(--paper-2);
}
.home-editor .mde {
  --mde-bg: var(--paper-2);
  --mde-code-bg: var(--paper-3);
  --mde-bg2: var(--paper-3);
  border-radius: inherit;
}
.home-editor .mde-content {
  max-width: none;
  min-height: 0;
  padding: 28px 32px 30px calc(var(--mde-gutter) + 10px);
}
/* the H1 hint in the gutter only once you're editing */
.home-editor .mde:not(:focus-within) .ln .tok-heading {
  visibility: hidden;
}
.home-caption {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 12.5px;
}
.home-about {
  margin: 28px 0 0;
  color: var(--ink-2);
  font-size: 16px;
  line-height: 1.6;
}
/* The call to action: the only thing at the bottom, centred. */
.home-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin: 40px 0 8px;
}
.cta-form {
  display: flex;
  align-items: center;
  gap: 10px;
}
.cta-label {
  margin-right: 2px;
  color: var(--ink-2);
  font-size: 16px;
  font-weight: 500;
}
.cta-form input {
  width: 260px;
  height: 46px;
  padding: 0 14px;
  font-size: 16px;
}
.btn-cta {
  height: 46px;
  padding: 0 22px;
  font-size: 16px;
  font-weight: 650;
}
.cta-alt {
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
}
.cta-alt:hover {
  color: var(--ink);
}
.start-main {
  margin-top: 16px;
}
.start-doc .mde-content {
  padding-bottom: 32px;
  min-height: 0;
}
.start-doc .mde .ln.active .tok-heading {
  visibility: hidden;
}

@media (max-width: 640px) {
  .home-page {
    padding: 20px 16px 48px;
  }
  .home-main {
    margin-top: 28px;
  }
  .home-editor .mde-content {
    padding: 20px 18px 22px calc(var(--mde-gutter) + 2px);
  }
  .home-cta,
  .cta-form {
    width: 100%;
  }
  .cta-form input {
    flex: 1;
    width: auto;
    min-width: 0;
  }
  .start .home-top {
    padding: 0;
  }
}

/* ---------- layout ---------- */

.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr) auto;
  height: 100%;
}

.sidebar {
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--paper-2);
}
.sb-head {
  display: flex;
  align-items: center;
  flex: none;
  height: var(--header-h);
  padding: 0 8px;
}
/* The workspace switcher: the open workspace and its server, top left. */
.ws-switcher {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-width: 0;
  height: 40px;
  padding: 0 10px 0 8px;
  border: 0;
  border-radius: var(--radius);
  background: none;
  cursor: pointer;
  text-align: left;
}
.ws-switcher:hover,
.ws-switcher[aria-expanded="true"] {
  background: var(--tint-hover);
}
.ws-switcher:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: -2px;
}
.ws-mark {
  display: grid;
  place-items: center;
  flex: none;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
  background: var(--ink);
  color: var(--paper);
  font: 700 12px/1 var(--font-ui);
}
.ws-text {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  gap: 1px;
}
.ws-title,
.ws-host {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ws-title {
  font: 600 13.5px/1.25 var(--font-ui);
}
.ws-host {
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.25;
}
.ws-switcher .chev {
  flex: none;
  width: 5px;
  height: 5px;
  margin: 0 2px 0 0;
  color: var(--muted);
}
.ws-menu {
  width: calc(var(--sidebar-w) - 16px);
  max-height: calc(100vh - 64px);
  overflow-y: auto;
}
/* the filter right under the switcher, then "New note" (a row like the tree's), then the tree */
.sb-tools {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: none;
  padding: 8px 12px 8px 16px;
}
.sb-actions {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
}
/* Sidebar actions behave like tree rows: a faint tint on hover, no underline. */
.sb-actions .quiet-btn {
  margin: 0 -8px;
  padding: 5px 8px;
  border-radius: var(--radius);
  /* Whole-pixel line boxes keep every row's icon and text on the same pixel grid. */
  line-height: 18px;
}
.sb-actions .quiet-btn:hover {
  text-decoration: none;
  background: var(--tint-hover);
  color: var(--ink);
}
/* A quiet action, not a heading: regular weight, muted, a thin plus. Its plus sits where the top-level folders'
   chevrons are (same centre, about the same size) and its label lines up with their names. */
.sb-actions .quiet-btn {
  color: var(--muted);
  font-weight: 400;
}
.sb-actions .quiet-btn .plus {
  width: 8px;
  height: 8px;
  margin-left: 2px;
}
.sb-actions .quiet-btn .plus::before {
  top: 3.25px;
  height: 1.5px;
}
.sb-actions .quiet-btn .plus::after {
  left: 3.25px;
  width: 1.5px;
}
/* "Search files": looks like a field, opens the search dialog (Ctrl+P). */
.sb-search {
  display: flex;
  align-items: center;
  width: 100%;
  height: 32px;
  padding: 0 7px 0 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--muted);
  cursor: text;
  font: 400 14px/1 var(--font-ui);
  text-align: left;
  transition: border-color 0.12s;
}
.sb-search:hover {
  border-color: rgba(24, 24, 27, 0.22);
}
.sb-search:focus-visible {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(41, 109, 154, 0.22);
}
.sb-search-label {
  flex: 1;
}
.sb-search kbd {
  padding: 2px 5px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--muted);
  font: 400 11px/1.2 var(--font-ui);
}
.sb-tree {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 0 0 32px;
}
/* "Share with an agent": a tinted card pinned below the tree */
.sb-agent {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: none;
  margin: 8px 12px 12px;
  padding: 8px 8px 8px 12px;
  border-radius: var(--radius);
  background: var(--tint-hover);
  font-size: 13px;
}
.sb-agent[hidden] {
  display: none;
}
/* "Share this workspace with an agent": wraps to two lines rather than being cut off */
.sb-agent-label {
  flex: 1;
  min-width: 0;
  color: var(--ink-2);
  line-height: 1.3;
  overflow-wrap: anywhere;
}
/* Who's signed in, at the very bottom: opens the account menu (upward). */
.sb-account {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: none;
  min-width: 0;
  margin: 0 8px 8px;
  padding: 5px 8px;
  border: 0;
  border-radius: var(--radius);
  background: none;
  color: var(--muted);
  font: 500 13px/18px var(--font-ui);
  text-align: left;
  cursor: pointer;
}
.sb-agent:not([hidden]) + .sb-account {
  margin-top: -4px;
}
.sb-account:hover,
.sb-account[aria-expanded="true"] {
  background: var(--tint-hover);
  color: var(--ink-2);
}
.sb-account:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: -2px;
}
.sb-account .avatar {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  font-size: 9px;
}
.sb-account .avatar img {
  border-radius: inherit;
}
.sb-account-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.account-menu {
  width: calc(var(--sidebar-w) - 16px);
}
.sb-tree ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.repo + .repo {
  margin-top: 16px;
}
/* Rows are inset from the sidebar edges with small rounded corners. */
.repo-row,
.folder-row,
.file-row {
  --depth: 0;
  display: flex;
  align-items: center;
  gap: 4px;
  min-height: 28px;
  margin: 0 8px;
  padding: 2px 8px 2px calc(var(--depth) * 14px - 6px);
  border-radius: var(--radius);
  color: var(--ink);
  cursor: pointer;
  user-select: none;
  text-decoration: none;
  outline: none;
}
.repo-row {
  min-height: 30px;
  margin-bottom: 2px;
  padding: 4px 56px 4px 7px;
  color: var(--ink-2);
  font: var(--label-weight) var(--label-size)/1.2 var(--font-ui);
  letter-spacing: var(--label-tracking);
  text-transform: var(--label-case);
}
.repo-row .chev {
  width: 5px;
  height: 5px;
  margin: 0 8px 0 1px;
  color: var(--muted);
}
.repo-row:hover,
.folder-row:hover,
.file-row:hover {
  background: var(--tint-hover);
}
.repo-row:focus-visible,
.folder-row:focus-visible,
.file-row:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: -2px;
}
.repo-title,
.folder-name,
.file-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.repo-title {
  flex: 0 1 auto;
}
.repo-row .badge {
  margin-left: 6px;
}
.folder-row {
  color: var(--ink-2);
}
.folder-row .chev {
  width: 6px;
  height: 6px;
  color: var(--muted);
}
.file-row {
  padding-left: calc(12px + var(--depth) * 14px);
  font-size: 14px;
}
.file-row .file-name mark {
  background: none;
  text-decoration: underline;
  text-decoration-color: var(--warn);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}
.file-row.active,
.file-row.active:hover {
  background: var(--tint-active);
  color: var(--ink);
  font-weight: 600;
}
/* The tree's current row while the tree has focus: only its background, a light blue tint instead of grey (dark text); over hover and the open note's grey. */
.sb-tree [role="treeitem"]:focus,
.sb-tree [role="treeitem"]:focus:hover {
  background: color-mix(in srgb, var(--blue) 18%, var(--paper-2));
  color: var(--ink);
  outline: none;
}
/* Row buttons sit beside the row (not inside it), over its right edge. */
.row-wrap,
.file-item,
.folder-item {
  position: relative;
}
/* a subfolder's "+": a new note in it */
.folder-add {
  position: absolute;
  top: 2px;
  right: 12px;
  opacity: 0;
}
.folder-item > .folder-row:hover ~ .folder-add,
.folder-item > .folder-row:hover ~ .row-menu,
.folder-item > .folder-row:focus ~ .row-menu,
.folder-item > .folder-add:hover ~ .row-menu,
.folder-item > .row-menu:hover,
.folder-item:has(> .row-menu:hover) > .folder-add,
.folder-add:hover,
.folder-add:focus-visible {
  opacity: 1;
}
/* a folder row's "+" sits left of its "⋯" */
.folder-item > .folder-add:has(~ .row-menu) {
  right: 38px;
}
.folder-item > .folder-row {
  padding-right: 64px;
}
/* A row's name while it's being renamed in place. */
.row-rename {
  flex: 1;
  min-width: 0;
  height: 22px;
  margin: 0 0 0 -4px;
  padding: 0 4px;
  border: 1px solid var(--blue);
  border-radius: 4px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  outline: none;
}
.file-item .file-row {
  padding-right: 34px;
}
.row-actions {
  position: absolute;
  top: 3px;
  right: 12px;
  display: flex;
  gap: 2px;
}
.row-menu {
  position: absolute;
  top: 2px;
  right: 12px;
  opacity: 0;
}
.row-actions .icon-btn {
  opacity: 0;
}
/* Inside a notebook row the menu button is laid out in the row of actions, not positioned on its own. */
.row-actions .row-menu {
  position: static;
}
/* The "+ new note" beside a notebook's name is always visible; its menu button shows on hover. */
.row-actions .icon-btn.row-add,
.row-wrap:hover .row-actions .icon-btn,
.row-wrap:focus-within .row-actions .icon-btn,
.row-actions .icon-btn[aria-expanded="true"] {
  opacity: 1;
}
.row-wrap:hover .row-actions,
.row-wrap:focus-within .row-actions,
.file-item:hover .row-menu,
.file-item:focus-within .row-menu,
.file-item.active .row-menu,
.row-menu[aria-expanded="true"] {
  opacity: 1;
}
.row-add {
  font-size: 17px;
  font-weight: 400;
}
/* Touch screens have no hover: show the menus, but quietly. */
@media (hover: none) {
  .row-actions .icon-btn,
  .row-menu {
    opacity: 1;
  }
  .file-item:not(.active) .row-menu {
    color: #a1a1aa;
  }
}
.presence-dots {
  display: flex;
  align-items: center;
  gap: 3px;
  flex: none;
}
.pdot {
  --c: #888;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--c);
}
.pdot.is-agent {
  background: transparent;
  box-shadow: inset 0 0 0 1.5px var(--c);
}
.presence-dots .more {
  margin-left: 1px;
  color: var(--muted);
  font-size: 10.5px;
}
.tree-note {
  margin: 0;
  padding: 4px 16px 6px 34px;
  color: var(--muted);
  font-size: 13px;
}
.tree-note.error {
  color: var(--ink-2);
}
.tree-note.error::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--warn);
  vertical-align: 1px;
}
.sb-tree > .tree-note {
  padding-left: 20px;
}
.sb-label {
  display: flex;
  justify-content: space-between;
  margin: 0 12px 4px 16px;
  padding: 6px 0 4px;
  color: var(--ink-2);
  font: var(--label-weight) var(--label-size)/1.2 var(--font-ui);
  letter-spacing: var(--label-tracking);
  text-transform: var(--label-case);
}
.sb-empty {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 16px 20px;
  color: var(--muted);
}
.sb-empty p {
  margin: 0;
}

/* ---------- main ---------- */

.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}
.doc-header {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
  height: var(--header-h);
  padding: 0 12px 0 24px;
}
.spacer {
  flex: 1;
}
.breadcrumb {
  display: flex;
  align-items: baseline;
  gap: 6px;
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
}
.crumb {
  overflow: hidden;
  text-overflow: ellipsis;
  /* Every part of the path uses the same type; only colour sets the file apart. */
  font: 500 14px/1.2 var(--font-ui);
  letter-spacing: 0;
  text-transform: none;
  color: var(--muted);
}
.crumb-repo {
  flex: none;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}
.crumb-repo:hover {
  color: var(--ink);
}
.crumb-sep {
  font: 400 14px/1.2 var(--font-ui);
  color: #a1a1aa;
}
.crumb-file {
  color: var(--ink);
}
.participants {
  display: flex;
  align-items: center;
  gap: 4px;
}
.save-status {
  flex: none;
  color: var(--muted);
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
}
.save-status:empty {
  display: none;
}
.save-status .sha {
  font-size: 11.5px;
  color: var(--ink-2);
}
.save-status.dirty {
  color: var(--ink);
}
/* Offline: a soft yellow note, not an alarm. */
.save-status.warn {
  padding: 4px 9px 4px 8px;
  border-radius: var(--radius);
  background: var(--warn-soft);
  color: var(--ink);
  font-weight: 500;
}
.save-status.warn::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--warn);
  vertical-align: 1px;
}

.doc-body {
  position: relative;
  flex: 1;
  min-height: 0;
  /* never sideways: what's too wide (tables, code blocks) scrolls inside itself (editor.css); this is only a net */
  overflow-x: hidden;
  overflow-y: auto;
}
.editor-host {
  min-height: 100%;
}
/* A note with nothing to show yet: a thin bar along the top, and only once it has taken 300 ms. */
.note-pending {
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  overflow: hidden;
  opacity: 0;
  animation: pending-in 0.2s ease-out 0.3s forwards;
}
.note-pending::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 30%;
  background: var(--tint-active);
  animation: pending-slide 1.1s ease-in-out infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@keyframes pending-in {
  to {
    opacity: 1;
  }
}
@keyframes pending-slide {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(340%);
  }
}
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 6px;
  max-width: 460px;
  height: 100%;
  margin: 0 auto;
  padding: 32px;
}
.empty-state .label {
  color: var(--muted);
  font-weight: 500;
}
.empty-state h2 {
  margin: 0;
  font-size: 24px;
  line-height: 1.2;
  font-family: var(--font-head);
  font-weight: var(--head-weight);
  font-stretch: var(--head-stretch);
  letter-spacing: var(--head-tracking);
}
.empty-state p {
  margin: 2px 0 18px;
  font-size: 14.5px;
  line-height: 1.5;
}
.empty-state .row {
  display: flex;
  gap: 8px;
}

/* ---------- history drawer ---------- */

.history {
  display: flex;
  flex-direction: column;
  width: var(--history-w);
  min-height: 0;
  background: var(--paper-2);
}
.history-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: none;
  height: var(--header-h);
  padding: 0 12px 0 20px;
}
.history-head h2 {
  margin: 0;
  font: 600 14px/1.2 var(--font-ui);
}
.history-head .icon-btn,
.modal-head .icon-btn {
  width: 28px;
  height: 28px;
  font-size: 18px;
}
.history-body {
  flex: 1;
  min-height: 0;
  overflow: auto;
}
.history .empty {
  margin: 0;
  padding: 12px 20px;
  color: var(--muted);
  line-height: 1.5;
}
.commits {
  margin: 0;
  padding: 0 12px 24px;
  list-style: none;
}
.commits li + li {
  margin-top: 2px;
}
.commit {
  display: flex;
  flex-direction: column;
  gap: 3px;
  width: 100%;
  padding: 9px 8px 10px;
  border: 0;
  border-radius: var(--radius);
  background: none;
  cursor: pointer;
  text-align: left;
}
.commit:hover {
  background: var(--tint-hover);
}
.commit-msg {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 550;
}
.commit-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 5px;
  color: var(--muted);
  font-size: 12px;
}
.commit-meta code {
  margin-left: auto;
  color: var(--muted);
  font-size: 11.5px;
}
.commit-detail {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0 20px 16px;
}
.commit-detail .link-btn {
  align-self: flex-start;
  margin-bottom: 8px;
}
.commit-detail .commit-meta code {
  margin-left: 0;
}
.commit-title {
  font-weight: 650;
  font-size: 15px;
  line-height: 1.35;
}
.commit-actions {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}
.diff,
.file-at-ref {
  margin: 0 12px 24px;
  padding: 10px 0;
  border-radius: var(--radius);
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  overflow-x: auto;
}
.file-at-ref {
  padding: 12px 14px;
  white-space: pre-wrap;
  word-break: break-word;
}
.dl {
  display: block;
  padding: 0 14px;
  white-space: pre-wrap;
  word-break: break-word;
}
.dl-add {
  background: rgba(41, 109, 154, 0.09);
  box-shadow: inset 2px 0 0 var(--blue);
}
.dl-del {
  background: rgba(24, 24, 27, 0.045);
  box-shadow: inset 2px 0 0 #a1a1aa;
  color: var(--muted);
}
.dl-hunk {
  margin-top: 6px;
  color: var(--muted);
}
.dl-meta {
  color: var(--muted);
}

/* ---------- menus ---------- */

.menu {
  position: fixed;
  z-index: 50;
  min-width: 184px;
  max-width: min(320px, calc(100vw - 16px));
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--paper);
  box-shadow: var(--shadow-pop);
  animation: pop-in 0.1s ease-out;
}
@keyframes pop-in {
  from {
    opacity: 0;
    transform: translateY(-2px);
  }
}
.menu-item {
  display: flex;
  align-items: center;
  width: 100%;
  height: 30px;
  padding: 0 10px;
  border: 0;
  border-radius: var(--radius-sm);
  background: none;
  color: var(--ink);
  cursor: pointer;
  font-size: 13.5px;
  text-align: left;
  white-space: nowrap;
}
.menu-item:hover {
  background: var(--paper-2);
}
.menu-item:focus {
  outline: none;
}
.menu-item:focus-visible {
  background: var(--paper-2);
  box-shadow: inset 0 0 0 2px var(--blue);
}
/* destructive: last, after a separator, set apart by weight (never red) */
.menu-item.danger {
  font-weight: 600;
}
.menu-item.danger:hover,
.menu-item.danger:focus-visible {
  background: var(--paper-3);
}
.menu-sep {
  height: 1px;
  margin: 4px 6px;
  background: var(--line-soft);
}
.menu-header {
  overflow: hidden;
  padding: 6px 10px 4px;
  color: var(--muted);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.menu-section {
  overflow: hidden;
  padding: 8px 10px 4px;
  color: var(--muted);
  font-size: 11.5px;
  font-weight: 550;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.menu-item:disabled {
  color: var(--muted);
  cursor: default;
}
.menu-item:disabled:hover {
  background: none;
}
.menu-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}
.menu-detail {
  flex: none;
  margin-left: 12px;
  color: var(--muted);
  font-size: 12px;
}
/* a row with a × at its right (leave / remove from the list): shown on hover and focus, always on touch */
.menu-row {
  position: relative;
}
.menu-row > .menu-item {
  padding-right: 34px;
}
.menu-remove {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 24px;
  height: 24px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-sm);
  background: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  opacity: 0;
}
.menu-row:hover .menu-remove,
.menu-row:focus-within .menu-remove {
  opacity: 1;
}
.menu-remove:hover,
.menu-remove:focus-visible {
  background: var(--paper-3);
  color: var(--ink);
}
.menu-remove:focus {
  outline: none;
}
.menu-remove:focus-visible {
  box-shadow: inset 0 0 0 2px var(--blue);
}
@media (hover: none) {
  .menu-remove {
    opacity: 1;
  }
}
/* the open workspace: a small dot before its name (other rows keep the space) */
.menu-check {
  flex: none;
  width: 6px;
  height: 6px;
  margin-right: 10px;
  border-radius: 50%;
}
.menu-check.on {
  background: var(--ink);
}

/* ---------- dialogs ---------- */

.modal {
  width: min(440px, calc(100vw - 32px));
  max-height: calc(100vh - 48px);
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--paper);
  color: var(--ink);
  box-shadow: var(--shadow-modal);
}
.modal[open] {
  animation: modal-in 0.14s ease-out;
}
@keyframes modal-in {
  from {
    opacity: 0;
    transform: translateY(6px) scale(0.99);
  }
}
.modal-wide {
  width: min(600px, calc(100vw - 32px));
}
.modal::backdrop {
  background: rgba(24, 24, 27, 0.3);
}
.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 12px 0 20px;
}
.modal-head h2 {
  margin: 0;
  font-size: 16px;
  line-height: 1.3;
  font-family: var(--font-head);
  font-weight: 650;
  letter-spacing: -0.01em;
}
.modal-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 14px 20px 20px;
}
.modal-body p {
  margin: 0;
  line-height: 1.5;
}
/* "Search files" (Ctrl+P): near the top, a compact search field over a flat list of paths. No flex chain: the
   list's own max-height sizes it (a flex: 1 list in an auto-height dialog collapses to nothing in Safari). */
.fs-modal {
  width: min(600px, 90vw);
  max-height: none;
  margin: 12vh auto auto;
  overflow: hidden;
}
.fs-field {
  padding: 8px;
  border-bottom: 1px solid var(--line-soft);
}
.fs-field .fs-input {
  display: block;
  width: 100%;
  height: 32px;
  padding: 0 8px;
  border: 0;
  border-color: transparent;
  background: transparent;
  box-shadow: none;
  color: var(--ink);
  font: 400 14px/1.2 var(--font-ui);
}
.fs-field .fs-input::placeholder {
  color: var(--muted);
}
.fs-field .fs-input:hover,
.fs-field .fs-input:focus,
.fs-field .fs-input:focus-visible {
  border-color: transparent;
  box-shadow: none;
}
.fs-list {
  /* grows with its results, then scrolls; shorter windows keep the whole dialog on screen */
  position: relative;
  max-height: min(420px, 60vh, calc(88vh - 120px));
  margin: 0;
  padding: 4px;
  overflow-y: auto;
  overscroll-behavior: contain;
  list-style: none;
}
.fs-item {
  overflow: hidden;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  color: var(--ink);
  cursor: pointer;
  font: 400 14px/18px var(--font-ui);
  text-overflow: ellipsis;
  white-space: nowrap;
}
.fs-item[aria-selected="true"] {
  background: color-mix(in srgb, var(--blue) 16%, var(--paper));
}
.fs-dir {
  color: var(--muted);
}
.fs-name {
  font-weight: 600;
}
.fs-empty {
  padding: 12px 10px;
  color: var(--muted);
  font-size: 14px;
}
.fs-foot {
  margin: 0;
  padding: 7px 14px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 12.5px;
}
/* "Open…": choices on the left, the chosen form on the right. */
.open-modal {
  width: min(620px, calc(100vw - 32px));
}
.open-dlg {
  display: grid;
  grid-template-columns: 168px 1fr;
  min-height: 248px;
  margin-top: 14px;
  border-top: 1px solid var(--line-soft);
}
.open-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 10px 16px;
  background: var(--paper-2);
  border-bottom-left-radius: var(--radius-lg);
}
.open-section {
  padding: 10px 10px 4px;
  color: var(--grey);
  font: 600 11.5px/1.2 var(--font-ui);
  letter-spacing: 0.01em;
}
.open-section:first-child {
  padding-top: 2px;
}
.open-choice {
  padding: 6px 10px;
  border: 0;
  border-radius: var(--radius);
  background: none;
  color: var(--ink-2);
  font: 500 13.5px/1.3 var(--font-ui);
  text-align: left;
  cursor: pointer;
}
.open-choice:hover {
  background: var(--tint-hover);
}
.open-choice[aria-selected="true"] {
  background: var(--tint-active);
  color: var(--ink);
}
.open-choice:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}
.open-panes {
  min-width: 0;
}
.open-pane {
  padding-top: 16px;
}
@media (max-width: 520px) {
  .open-dlg {
    grid-template-columns: 1fr;
  }
  .open-nav {
    border-radius: 0;
  }
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 6px;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.field > span {
  color: var(--ink-2);
  font: 550 12.5px/1.2 var(--font-ui);
}
.field input {
  width: 100%;
}
.check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  cursor: pointer;
}
.radio-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.hint {
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.5;
}
.form-error {
  margin: 0;
  padding: 8px 10px;
  border-radius: var(--radius);
  background: var(--warn-soft);
  color: var(--ink);
  font-weight: 500;
  font-size: 13px;
}
.gh-status::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 8px;
  border: 1.5px solid var(--tint-active);
  border-top-color: var(--ink-2);
  border-radius: 50%;
  vertical-align: -1px;
  animation: spin 0.8s linear infinite;
}
/* ---------- toasts ---------- */

.toasts {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transform: translateX(-50%);
  pointer-events: none;
}
.toast {
  display: flex;
  align-items: center;
  gap: 9px;
  max-width: min(480px, calc(100vw - 32px));
  padding: 10px 14px;
  border-radius: var(--radius-lg);
  background: var(--ink);
  box-shadow: var(--shadow-pop);
  color: var(--paper);
  font-size: 13px;
  line-height: 1.4;
  animation: toast-in 0.18s ease-out;
  transition: opacity 0.3s, transform 0.3s;
}
.toast-error::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #f5c542;
}
.toast-action {
  flex: none;
  margin: -4px -6px -4px 4px;
  padding: 4px 9px;
  border: 0;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.14);
  color: inherit;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  pointer-events: auto;
}
.toast-action:hover { background: rgba(255, 255, 255, 0.24); }
.toast.leaving {
  opacity: 0;
  transform: translateY(6px);
}
@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
}

/* ---------- GitHub repos ---------- */

.doc-source {
  flex: none;
  display: flex;
  min-width: 0;
}
.gh-source {
  padding: 3px 8px;
  border-radius: var(--radius);
  background: var(--paper-2);
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  text-decoration: none;
}
.gh-source:hover {
  background: var(--tint-hover);
  color: var(--ink);
}

/* ---------- small screens ---------- */

.sidebar-toggle,
.sidebar-backdrop {
  display: none;
}
.burger {
  display: block;
  width: 14px;
  height: 10px;
  border-top: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  background: linear-gradient(currentColor, currentColor) center / 100% 2px no-repeat;
}

@media (max-width: 900px) {
  .app.history-open {
    grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  }
  .history {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 20;
    width: min(var(--history-w), 100vw);
    box-shadow: var(--shadow-modal);
  }
}
@media (max-width: 640px) {
  .app {
    grid-template-columns: minmax(0, 1fr);
  }
  .sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 30;
    width: min(var(--sidebar-w), 85vw);
    transform: translateX(-105%);
    transition: transform 0.18s ease-out;
  }
  .app.sidebar-open .sidebar {
    transform: none;
    box-shadow: var(--shadow-modal);
  }
  .app.sidebar-open .sidebar-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 25;
    background: rgba(24, 24, 27, 0.3);
  }
  .sidebar-toggle {
    display: inline-grid;
    flex: none;
    width: 32px;
    height: 32px;
    margin-left: -6px;
    color: var(--ink);
  }
  .doc-header {
    gap: 8px;
    padding: 0 8px 0 12px;
  }
  .participants,
  .doc-source {
    display: none;
  }
  .history {
    width: 100vw;
  }
}
@media (max-width: 520px) {
  .breadcrumb > :not(.crumb-file) {
    display: none;
  }
  .save-status {
    max-width: 40vw;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 12px;
  }
}

/* ---------- sign-in screen (signed out in the app) ---------- */

.signin-page {
  display: grid;
  place-items: center;
  min-height: 100%;
  padding: 32px 16px;
}
.signin-card {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 14px;
  width: min(360px, 100%);
}
.signin-card .slab-blk {
  align-self: flex-start;
  margin-bottom: 18px;
}
.signin-card h1 {
  margin: 0;
  font: var(--head-weight) 22px/1.25 var(--font-head);
  letter-spacing: var(--head-tracking);
}
.signin-card > p {
  margin: -4px 0 6px;
  line-height: 1.5;
}
.btn-signin {
  height: 40px;
  font-size: 14px;
}
.btn-google svg {
  flex: none;
}
.signin-or {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 12px;
}
.signin-or::before,
.signin-or::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line-soft);
}
.signin-name {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.signin-name .btn {
  height: 40px;
}
.signin-card .cta-alt {
  align-self: center;
  margin-top: 10px;
}

/* ---------- not signed in (guests) ---------- */

/* a guest in the participants list: a dashed ring, no account */
.avatar.is-guest {
  box-shadow: 0 0 0 1.5px var(--paper), 0 0 0 2.5px var(--c);
  opacity: 0.85;
}
.sb-account.sb-signin {
  color: var(--ink-2);
  font-weight: 550;
}
/* the home page's "View the notes" + "Sign in" */
.cta-row {
  display: flex;
  align-items: center;
  gap: 18px;
}
.cta-signin {
  color: var(--ink-2);
  font-size: 15px;
  font-weight: 550;
  text-decoration: none;
}
.cta-signin:hover {
  color: var(--ink);
  text-decoration: underline;
}
/* the sign-in dialog */
.signin-modal {
  width: min(400px, calc(100vw - 32px));
}
.signin-body .signin-why {
  margin: 0 0 14px;
  line-height: 1.5;
}
.signin-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.signin-options .hint {
  margin: 0;
}
.signin-actions {
  flex-wrap: wrap;
  align-items: center;
  margin-top: 16px;
}
.signin-actions .spacer {
  flex: 1;
}
.signin-scratch {
  color: var(--muted);
  font-size: 13px;
}
.signin-scratch:hover {
  color: var(--ink);
}
/* /scratch */
.scratch-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 20px;
  padding: 8px 12px;
  border-radius: var(--radius);
  background: var(--warn-soft);
  color: var(--ink-2);
  font-size: 13.5px;
}
.scratch-back {
  color: var(--ink-2);
  font-weight: 550;
  text-decoration: none;
}

/* the demo folder's note, above the editor */
.demo-banner {
  flex: none;
  margin: 12px auto 0;
  padding: 6px 12px;
  border-radius: var(--radius);
  background: var(--warn-soft);
  color: var(--ink-2);
  font-size: 13px;
  text-align: center;
  width: fit-content;
  max-width: calc(100% - 32px);
}