/* css/app.css — RTL-first. Logical properties throughout; physical left/right
   appears only where the meaning is genuinely physical (code alignment). */

/* ------------------------------------------------------------------ font */
@font-face {
  font-family: 'Vazirmatn';
  src: url('../fonts/Vazirmatn[wght].woff2') format('woff2-variations');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #ffffff;
  --bg-alt: #f6f8fa;
  --bg-inset: #f0f1f3;
  --border: #d0d7de;
  --fg: #1f2328;
  --fg-muted: #57606a;
  --accent: #0969da;
  --accent-fg: #ffffff;
  --danger: #cf222e;
  --warn-bg: #fff8c5;
  --warn-border: #d4a72c;
  --ok: #1a7f37;
  /* 25% of the viewport, not a fixed 320px: at a 1024px window that was 31% of
     the screen spent on file names, and the ratio is what reads wrong, not the
     pixels. The floor keeps the tree usable in a narrow desktop window (below
     ~960px 25% would be thinner than a filename) and the ceiling stops a
     sidebar on an ultra-wide monitor from becoming a wall. */
  --sidebar-w: clamp(15rem, 25vw, 23rem);
  --topbar-h: 48px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --bg-alt: #161b22;
    --bg-inset: #21262d;
    --border: #30363d;
    --fg: #e6edf3;
    --fg-muted: #8b949e;
    --accent: #2f81f7;
    --warn-bg: #2d2404;
    --warn-border: #9e6a03;
  }
}

* { box-sizing: border-box; }

/* display:grid / display:flex on an element OVERRIDES the UA's
   `[hidden] { display: none }` — without this line the login card, the find
   bar and the app shell would all render even while "hidden". */
[hidden] { display: none !important; }

html, body {
  height: 100%;
  margin: 0;
}

body {
  font-family: 'Vazirmatn', 'Segoe UI', Tahoma, system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: var(--fg);
  background: var(--bg);
}

/* Form controls do NOT inherit font-family. This is the single easiest thing
   to miss in a webfont setup. */
button, input, select, textarea {
  font: inherit;
  color: inherit;
}

/* 16px minimum, or iOS zooms the page on focus. */
input, select, textarea { font-size: 16px; }

button {
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  border-radius: 6px;
  padding: 0.3rem 0.7rem;
}
button:hover:not(:disabled) { background: var(--bg-inset); }
button:disabled { opacity: 0.5; cursor: default; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
.icon-btn { padding: 0.3rem 0.5rem; line-height: 1; }
.link-btn { border: 0; background: none; color: var(--accent); padding: 0; }
.muted { color: var(--fg-muted); }
.spacer { flex: 1; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  margin: -1px; padding: 0; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ------------------------------------------------------------------ login */
.login {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background: var(--bg-alt);
}
.login-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.75rem;
  width: min(30rem, 100%);
  display: grid;
  gap: 0.6rem;
}
.login-card h1 { margin: 0 0 0.25rem; font-size: 1.35rem; }
.login-card label { font-weight: 600; }
.login-card input[type="password"] {
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
}
.check { display: flex; gap: 0.5rem; align-items: center; font-weight: 400; }
.login-divider {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--fg-muted);
  font-size: 0.8rem;
  margin-block: 0.2rem;
}
.login-divider::before, .login-divider::after {
  content: "";
  flex: 1;
  border-block-start: 1px solid var(--border);
}
.ghost-btn {
  background: var(--bg);
  border: 1px dashed var(--border);
  border-radius: 6px;
  padding: 0.55rem 0.6rem;
  font-weight: 600;
  color: var(--accent);
}
.ghost-btn:hover:not(:disabled) { background: var(--bg-alt); border-style: solid; }
.hint { font-size: 0.85rem; color: var(--fg-muted); margin: 0; }
.hint.small { font-size: 0.78rem; }
.error { color: var(--danger); margin: 0; font-size: 0.9rem; }

/* -------------------------------------------------------------------- app */
.app {
  height: 100dvh;
  display: grid;
  /* In RTL the first grid column is the RIGHT one, so the sidebar lands on the
     right with no ordering hack. */
  grid-template-columns: var(--sidebar-w) 1fr;
  /* The header row is `auto`, NOT var(--topbar-h): under 860px the header is two
     rows tall, and --topbar-h is measured from the DOM (see measureTopbar()) to
     keep the mobile drawer positioned under it. */
  grid-template-rows: auto 1fr;
  grid-template-areas:
    "topbar topbar"
    "sidebar main";
}
body.sidebar-collapsed .app {
  grid-template-columns: 1fr;
  grid-template-areas: "topbar" "main";
}
body.sidebar-collapsed .sidebar { display: none; }

.topbar {
  grid-area: topbar;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding-inline: 0.6rem;
  padding-block: 0.3rem;
  /* Literal, not var(--topbar-h): that variable is written back from the
     measured height, and using it here would freeze the header at its tallest
     ever value. */
  min-height: 48px;
  border-block-end: 1px solid var(--border);
  background: var(--bg-alt);
  overflow: hidden;
}

/* Two logical rows. `display: contents` unpacks them on desktop, so the header
   stays the single flat row it always was; the media query below turns them into
   real rows and moves the secondary controls into the ⋯ menu. */
.topbar-row,
.topbar-extra { display: contents; }
.path-wrap { display: inline-flex; align-items: center; gap: 0.3rem; min-width: 0; }
.more-btn { display: none; }
.menu-dlg { width: min(22rem, calc(100vw - 2rem)); }
/* Settings. Small on purpose: it holds switches, not forms. */
.settings-dlg { width: min(24rem, calc(100vw - 2rem)); }
.settings-head { display: flex; align-items: center; justify-content: space-between; margin-block-end: 0.9rem; }
.settings-body { display: grid; gap: 0.5rem; }
/* .dlg label is `display: block`, which would break the checkbox row. */
.settings-dlg .check { display: flex; gap: 0.55rem; align-items: flex-start; font-weight: 500; margin: 0; cursor: pointer; }
.settings-dlg .check input { margin-block-start: 0.15rem; inline-size: 1.05rem; block-size: 1.05rem; flex: 0 0 auto; }
.settings-dlg .hint { margin: 0; }

.menu-head { display: flex; align-items: center; justify-content: space-between; margin-block-end: 0.6rem; }
.menu-head h2 { margin: 0; font-size: 1.05rem; }
.menu-slot { display: grid; gap: 0.35rem; }
.menu-slot > * { width: 100%; }
.menu-slot > button { text-align: start; min-height: 44px; }
.menu-slot .user { display: flex; align-items: center; gap: 0.5rem; justify-content: space-between; padding: 0.3rem 0.1rem; }
.menu-slot #user-login { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.path-label {
  font-weight: 600;
  font-size: 0.9rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  /* min-width: 0 / flex: 1 1 auto are what let a long path ellipsize. Without
     them a flex item refuses to shrink below its content, and the filename
     pushes کامیت and ⋯ off the edge — the bug this header layout exists to fix. */
  flex: 1 1 auto;
  min-width: 0;
  max-width: 34ch;
  unicode-bidi: plaintext;
}
.dirty { color: var(--danger); }
.counts { font-size: 0.78rem; color: var(--fg-muted); white-space: nowrap; }
.mode-group { display: flex; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.mode-group button { border: 0; border-radius: 0; background: var(--bg-alt); }
.mode-group button[aria-pressed="true"] { background: var(--accent); color: var(--accent-fg); }
.user { display: flex; align-items: center; gap: 0.4rem; font-size: 0.85rem; }
.user img { border-radius: 50%; }

/* ---------------------------------------------------------------- sidebar */
.sidebar {
  grid-area: sidebar;
  border-inline-end: 1px solid var(--border);
  background: var(--bg-alt);
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}
.side-head {
  display: flex;
  gap: 0.35rem;
  padding: 0.4rem;
  align-items: center;
}
.side-head input, .side-head select {
  flex: 1;
  min-width: 0;
  padding: 0.3rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
}
.branch-row { border-block-start: 1px solid var(--border); }
.repo-list { overflow-y: auto; max-height: 34vh; padding-inline: 0.4rem; }
.repo-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  width: 100%;
  text-align: start;
  border: 0;
  border-radius: 6px;
  background: none;
  padding: 0.28rem 0.5rem;
  font-size: 0.88rem;
}
.repo-item:hover { background: var(--bg-inset); }
.repo-item.active { background: var(--accent); color: var(--accent-fg); }
.repo-name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; }
.repo-owner { color: var(--fg-muted); font-size: 0.75rem; }
.repo-item.active .repo-owner { color: inherit; opacity: 0.85; }
.badge {
  font-size: 0.68rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  padding: 0 0.35rem;
  opacity: 0.75;
}
.side-status { font-size: 0.75rem; color: var(--fg-muted); padding-inline: 0.6rem; margin: 0.25rem 0; }
.ratelimit.warn { color: var(--danger); }

.file-tree { flex: 1; overflow-y: auto; padding-inline: 0.25rem 0.4rem; }
.tree { list-style: none; margin: 0; padding-inline-start: 0.75rem; }
.file-tree > .tree { padding-inline-start: 0; }
.tree.flat { padding-inline-start: 0; }
.tree-toggle {
  display: flex; align-items: center; gap: 0.3rem;
  width: 100%; text-align: start;
  border: 0; background: none; border-radius: 5px;
  padding: 0.15rem 0.35rem;
  font-size: 0.86rem; font-weight: 600;
}
.tree-toggle:hover { background: var(--bg-inset); }
.twisty { font-size: 0.7rem; color: var(--fg-muted); width: 0.8em; }
.dir-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tree-file-btn {
  display: block; width: 100%; text-align: start;
  border: 0; background: none; border-radius: 5px;
  padding: 0.12rem 0.35rem;
  font-size: 0.84rem;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  unicode-bidi: plaintext;
}
.tree-file-btn:hover { background: var(--bg-inset); }
.tree-file-btn.active { background: var(--accent); color: var(--accent-fg); }
.tree-file.non-md .tree-file-btn { opacity: 0.55; }
.empty { font-size: 0.82rem; color: var(--fg-muted); padding: 0.5rem; }

/* ------------------------------------------------------------------- main */
.main { grid-area: main; display: flex; flex-direction: column; min-width: 0; min-height: 0; }

.find-bar {
  display: flex; align-items: center; gap: 0.35rem;
  padding: 0.4rem 0.6rem;
  border-block-end: 1px solid var(--border);
  background: var(--bg-alt);
  flex-wrap: wrap;
}
.find-replace-group { display: contents; }   /* children stay flex items of .find-bar */
.find-bar input {
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  min-width: 10rem;
  flex: 1 1 8rem;
}
.find-status { font-size: 0.78rem; color: var(--fg-muted); white-space: nowrap; min-width: 5ch; }

.banner { padding: 0.5rem 0.8rem; font-size: 0.88rem; }
.banner.warn { background: var(--warn-bg); border-block-end: 1px solid var(--warn-border); }
.banner.info { background: var(--bg-alt); border-block-end: 1px solid var(--border); }
.banner.info .link-btn { margin-inline-start: 0.5rem; }

.panes {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr;
  min-height: 0;
}
body.mode-split .panes { grid-template-columns: 1fr 1fr; }
.pane { min-width: 0; min-height: 0; overflow: hidden; }
.editor-pane { display: flex; }

/* `position: relative` is load-bearing, not decoration. marked-footnote puts a
   screen-reader heading (h2.sr-only) at the END of the rendered document, and
   .sr-only is `position: absolute`. Without a positioned ancestor here, that
   element's containing block is the initial containing block, so it is NOT
   clipped by this pane's `overflow-y: auto` — its static position (the bottom
   of the preview) stretches the scrollable area of the PAGE. That is why a
   document with footnotes made the whole page scroll while a document without
   them did not. Making the pane the containing block puts it back under the
   pane's own clipping, where it belongs. */
.preview-pane {
  position: relative;
  overflow-y: auto;
  border-inline-start: 1px solid var(--border);
  background: var(--bg);
}
body.mode-preview .preview-pane { border-inline-start: 0; }
#preview { padding: 1.25rem 1.5rem; max-width: 60rem; }

/* Preview search matches (js/pvsearch.mjs). Same two colours as the editor's
   .cm-hl-* so the bar looks the same in every mode. */
#preview mark.pv-hl-match {
  background-color: rgb(234 179 8 / 0.35);
  color: inherit;
  border-radius: 2px;
  padding: 0;
}
#preview mark.pv-hl-current {
  background-color: rgb(249 115 22 / 0.75);
  box-shadow: 0 0 0 1px #ea580c;
}

/* =============================================================== markdown */
/* 🔴 unicode-bidi does NOT inherit. Setting plaintext on #preview alone does
   nothing for the paragraphs inside it: each child would inherit
   direction: rtl from <html> and force pure-English paragraphs RTL too.
   Apply it to the leaf blocks. :where() keeps specificity at 0 and covers
   nested blocks such as blockquote > p. */
#preview :where(p, li, h1, h2, h3, h4, h5, h6, blockquote,
                td, th, figcaption, dt, dd, summary, caption) {
  unicode-bidi: plaintext;
}

/* Code is LTR no matter what, and must not leak direction into surrounding
   Persian text. Without isolate, `useState(count)` inside a Persian sentence
   gets its parentheses reordered. */
#preview :where(pre, code) { direction: ltr; text-align: left; }
#preview :where(pre) {
  overflow: auto;
  unicode-bidi: isolate;
  padding: 0.75rem 1rem;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  line-height: 1.5;
}
#preview :where(code) {
  unicode-bidi: isolate;
  font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas,
               'Liberation Mono', monospace;
  font-size: 0.88em;
}
#preview :where(:not(pre) > code) {
  padding: 0.12em 0.35em;
  background: var(--bg-inset);
  border-radius: 4px;
}

#preview :where(h1, h2) { border-block-end: 1px solid var(--border); padding-block-end: 0.3em; }
#preview :where(h1, h2, h3, h4, h5, h6) { margin-block: 1.2em 0.5em; line-height: 1.35; }
#preview :where(p, ul, ol, blockquote, table, pre) { margin-block: 0.9em; }
#preview :where(img) { max-width: 100%; height: auto; }
#preview :where(hr) { border: 0; border-block-start: 1px solid var(--border); margin-block: 1.5em; }
#preview :where(a) { color: var(--accent); }

#preview :where(blockquote) {
  margin-inline: 0;
  padding-inline-start: 1em;
  border-inline-start: 3px solid var(--border);
  color: var(--fg-muted);
}

/* Tables. marked emits alignment as an `align` ATTRIBUTE, which survives the
   sanitizer; inline style does not, so the renderer never produces it. */
#preview :where(table) {
  border-collapse: collapse;
  display: block;
  overflow-x: auto;
  max-width: 100%;
}
#preview :where(th, td) { border: 1px solid var(--border); padding: 0.4rem 0.75rem; }
#preview :where(th) { background: var(--bg-alt); }
#preview :where([align="right"],  .align-right)  { text-align: right; }
#preview :where([align="center"], .align-center) { text-align: center; }
#preview :where([align="left"],   .align-left)   { text-align: left; }

/* Task lists: marked emits the checkbox with `disabled`, and the sanitizer
   allowlist keeps `disabled`/`checked`, so these stay read-only. */
#preview :where(li > input[type="checkbox"]) { margin-inline-end: 0.5em; }

/* Footnotes (marked-footnote, prefixId: 'fn-'). */
#preview :where(.footnotes) { font-size: 0.9em; color: var(--fg-muted); }
#preview :where(.footnotes hr) { margin-block: 1.5em; }
#preview :where(.footnotes sup) { font-size: 0.75em; }
#preview :where(sup > a) { text-decoration: none; }
#preview :where(.footnotes li a) { text-decoration: none; margin-inline-start: 0.3em; }
/* marked-footnote puts class="sr-only" on its screen-reader heading. */
#preview .sr-only, .sr-only {
  position: absolute; width: 1px; height: 1px;
  margin: -1px; padding: 0; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* YAML front matter, rendered by md.mjs as a collapsed table. */
#preview .front-matter { margin-block: 0 1.2em; font-size: 0.88rem; }
#preview .front-matter > summary { cursor: pointer; color: var(--fg-muted); }
#preview .front-matter-table { display: table; }
#preview .front-matter-table th { text-align: start; white-space: nowrap; }

#preview .render-error { color: var(--danger); }

/* ---------------------------------------------------------------- dialogs */
.dlg {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
  width: min(28rem, calc(100vw - 2rem));
  background: var(--bg);
  color: var(--fg);
}
.dlg::backdrop { background: rgb(0 0 0 / 0.4); }
.dlg h2 { margin: 0 0 0.75rem; font-size: 1.1rem; }
.dlg label { display: block; font-weight: 600; margin-block-end: 0.25rem; }
.dlg input[type="text"] {
  width: 100%;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
}
.dlg-actions { display: flex; justify-content: flex-end; gap: 0.5rem; margin-block-start: 1rem; }

/* ------------------------------------------------------------------ toast */
.toast {
  position: fixed;
  inset-block-end: calc(1rem + env(safe-area-inset-bottom, 0px));
  inset-inline-start: 1rem;
  max-width: min(32rem, calc(100vw - 2rem));
  padding: 0.6rem 0.9rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  box-shadow: 0 4px 16px rgb(0 0 0 / 0.18);
  display: none;
  gap: 0.75rem;
  align-items: center;
  z-index: 50;
}
.toast.show { display: flex; }
.toast.success { border-color: var(--ok); }
.toast.error   { border-color: var(--danger); }
.toast.warn    { background: var(--warn-bg); border-color: var(--warn-border); }
.toast-action { white-space: nowrap; }

body.busy { cursor: progress; }

/* ----------------------------------------------------------------- mobile */
/* The sidebar becomes an overlay drawer. Same .sidebar-collapsed toggle as
   desktop, so the default state (visible) matches desktop and the button means
   the same thing at every width. */
/* Sidebar overlay on mobile */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 19;
  backdrop-filter: blur(2px);
}

@media (max-width: 860px) {
  .app {
    grid-template-columns: 1fr;
    grid-template-areas: "topbar" "main";
  }
  .sidebar {
    position: fixed;
    inset-block: var(--topbar-h) 0;
    inset-inline-start: 0;
    width: min(22rem, 88vw);
    z-index: 20;
    box-shadow: 0 0 24px rgb(0 0 0 / 0.35);
    transition: transform 0.2s ease, visibility 0.2s;
  }
  .sidebar-overlay { inset-block-start: var(--topbar-h); }
  body:not(.sidebar-collapsed) .sidebar-overlay {
    display: block;
  }
  /* Slide the drawer out instead of `display: none` — that killed the
     transition three lines above and made the overlay flash. translateX is
     physical, which is what we want here: in RTL the drawer is anchored to the
     right (inset-inline-start: 0), so +100% is off the right edge. */
  body.sidebar-collapsed .sidebar {
    display: flex;
    transform: translateX(100%);
    visibility: hidden;
  }
  body.mode-split .panes { grid-template-columns: 1fr; }
  body.mode-split .preview-pane { border-inline-start: 0; border-block-start: 1px solid var(--border); }
  .counts, #user-login, #user-avatar { display: none; }
  /* …except inside the ⋯ menu, where the account line is the only identity left. */
  .menu-dlg #user-login, .menu-dlg #user-avatar { display: inline-block; }

  /* --- two-row header --------------------------------------------------- */
  .topbar {
    flex-direction: column;
    align-items: stretch;
    gap: 0.35rem;
    padding-inline: 0.4rem;
    padding-block-start: max(0.35rem, env(safe-area-inset-top));
    overflow: visible;
  }
  .topbar-row {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    min-width: 0;
  }
  .topbar-extra { display: none; }         /* moved into #menu-slot instead */
  .more-btn { display: inline-flex; }
  .topbar button {
    min-height: 38px;
    padding: 0.3rem 0.55rem;
    font-size: 0.85rem;
    white-space: nowrap;
  }
  .mode-group { flex: 1; }
  .mode-group button { flex: 1; }
  .path-wrap { flex: 1 1 auto; }
  .path-label { max-width: none; font-size: 0.9rem; }

  .editor-toolbar { flex-wrap: wrap; row-gap: 0.15rem; }
  .tb-btn { min-height: 34px; padding: 0.3rem 0.55rem; }
  .find-bar button { min-height: 34px; }

  /* On a phone the reading column is the screen; every pixel of gutter and
     padding is prose lost. */
  #editor-host .cm-content { padding-block: 0.75rem; padding-inline: 0.7rem; }
  #editor-host .cm-editor { font-size: 15px; }
  #editor-host .cm-lineNumbers .cm-gutterElement { padding-inline: 0.3rem 0.25rem; }
}

@media (prefers-reduced-motion: reduce) {
  .sidebar { transition: none; }
}




/* ------------------------------------------------ editor layout & toolbar */
.editor-pane {
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  background: var(--bg);
  min-height: 0;
}

.editor-toolbar {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.3rem 0.5rem;
  background: var(--bg-alt);
  border-block-end: 1px solid var(--border);
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  /* Without this, a sideways swipe on the toolbar is taken by the browser's
     back/forward gesture on iOS and touchpads instead of scrolling the row. */
  overscroll-behavior-x: contain;
}
.editor-toolbar::-webkit-scrollbar { display: none; }

.tb-btn {
  padding: 0.2rem 0.45rem;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid transparent;
  background: transparent;
  border-radius: 4px;
  cursor: pointer;
  white-space: nowrap;
  line-height: 1.3;
}
.tb-btn:hover {
  background: var(--bg-inset);
  border-color: var(--border);
}
.tb-btn:active {
  background: var(--border);
}
.tb-bold { font-weight: 800; font-family: ui-monospace, sans-serif; }
.tb-italic { font-style: italic; font-family: ui-monospace, sans-serif; }
.tb-strike { text-decoration: line-through; font-family: ui-monospace, sans-serif; }
.tb-sep {
  display: inline-block;
  width: 1px;
  height: 1.1rem;
  background: var(--border);
  margin-inline: 0.2rem;
  flex-shrink: 0;
}

.editor-body {
  flex: 1;
  display: flex;
  flex-direction: row;
  position: relative;
  overflow: hidden;
  min-height: 0;
}

.editor-host { flex: 1; min-width: 0; min-height: 0; position: relative; }

/* ============================================================ CodeMirror skin */
/* Structure (font, line-height, the wrapping column) is set by the theme in
   js/editor.mjs; everything visual lives here, next to the rest of the app's
   styling, so the mobile media query below can restyle the editor with no JS.

   #editor-host raises specificity above CodeMirror's injected styles: those are
   appended to <head> after this file, so equal-specificity rules would lose. */
#editor-host .cm-editor { height: 100%; background: var(--bg); color: var(--fg); }
#editor-host .cm-editor.cm-focused { outline: none; }

#editor-host .cm-scroller { overflow-y: auto; overscroll-behavior-y: contain; }

#editor-host .cm-content {
  padding-block: 1rem;
  /* The reading column: a comfortable measure, centred in the pane. Padding
     rather than max-width keeps the lines inside the scroll box, so dragging a
     selection past the last line still works. */
  padding-inline: max(1.25rem, calc((100% - 72ch) / 2));
}

#editor-host .cm-line { padding: 0; }

/* --- gutters: Persian digits, sized by content (never a fixed 52px) ------- */
#editor-host .cm-gutters {
  background: var(--bg-alt);
  color: var(--fg-muted);
  border-inline-end: 1px solid var(--border);
  border-inline-start: 0;
}
#editor-host .cm-lineNumbers .cm-gutterElement {
  /* tabular-nums keeps the digits in a column; the width follows the widest
     number on screen instead of being guessed. */
  font-variant-numeric: tabular-nums;
  font-size: 0.78em;
  padding-inline: 0.5rem 0.35rem;
  min-width: 0;
}
#editor-host .cm-activeLineGutter { background: transparent; color: var(--fg); }

/* --- active line, caret, selection --------------------------------------- */
#editor-host .cm-activeLine { background: color-mix(in srgb, var(--fg) 4%, transparent); }
#editor-host .cm-cursor,
#editor-host .cm-dropCursor { border-inline-start: 2px solid var(--fg); border-left: 0; }
#editor-host .cm-editor.cm-focused .cm-selectionBackground,
#editor-host .cm-selectionBackground {
  background: color-mix(in srgb, var(--accent) 28%, transparent) !important;
}

/* --- search matches (were a drifting overlay; now real decorations) ------- */
#editor-host .cm-hl-match {
  background-color: rgb(234 179 8 / 0.35);
  border-radius: 2px;
}
#editor-host .cm-hl-current {
  background-color: rgb(249 115 22 / 0.75);
  box-shadow: 0 0 0 1px #ea580c;
}

#editor-host .cm-placeholder { color: var(--fg-muted); }
#editor-host .cm-content.is-readonly { color: var(--fg-muted); }
#editor-host .cm-editor:has(.cm-content.is-readonly) { background: var(--bg-alt); }

/* --- markdown skin: the prose leads, the markup recedes ------------------- */
#editor-host .cm-heading-line { font-weight: 700; }

/* ------------------------------------------------ commit dialog (GitHub-style) */
.commit-dlg {
  width: min(34rem, calc(100vw - 2rem));
  padding: 1.5rem;
}
.commit-dlg .dlg-header {
  margin-block-end: 1rem;
}
.commit-dlg .dlg-header h2 {
  margin: 0 0 0.25rem;
  font-size: 1.25rem;
  font-weight: 700;
}
.commit-dlg .form-group {
  margin-block-end: 0.9rem;
}
.commit-dlg label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-block-end: 0.3rem;
}
.commit-dlg .required {
  color: var(--danger);
}
.commit-dlg input[type="text"],
.commit-dlg textarea {
  width: 100%;
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  box-sizing: border-box;
}
.commit-branch-section {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem 0.8rem;
  margin-block: 0.8rem 1.2rem;
}
.commit-branch-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 !important;
  font-size: 0.88rem;
  font-weight: 500;
}
.commit-branch-icon {
  font-size: 1.1rem;
  color: var(--accent);
}

/* ------------------------------------------------ find bar buttons & divider */
.find-divider {
  width: 1px;
  height: 1.2rem;
  background: var(--border);
  margin-inline: 0.3rem;
}
.btn-toggle[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}

#commit-btn:not(:disabled) {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
  font-weight: 600;
}