:root, [data-theme="light"] {
  --bg: #f5f5f4; --card: #fff; --text: #1c1917; --muted: #78716c;
  --line: #e7e5e4; --accent: #e11d48; --done: #a8a29e;
  --doc-canvas: #f0f0f0; --doc-page: #fff; --doc-page-text: #000;
  --doc-page-gap-border: #e5e5e5;
  color-scheme: light;
}
[data-theme="dark"] {
  --bg: #0c0a09; --card: #1c1917; --text: #fafaf9; --muted: #a8a29e;
  --line: #292524; --accent: #e11d48; --done: #57534e;
  --doc-canvas: #1a1a1a; --doc-page: #fff; --doc-page-text: #000;
  --doc-page-gap-border: #333;
  color-scheme: dark;
}
/* No-JS / before bootstrap: follow the OS preference. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg: #0c0a09; --card: #1c1917; --text: #fafaf9; --muted: #a8a29e;
    --line: #292524; --done: #57534e;
    --doc-canvas: #1a1a1a; --doc-page: #fff; --doc-page-text: #000;
    --doc-page-gap-border: #333;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif; }
.top-nav { display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .7rem 1rem; border-bottom: 1px solid var(--line); background: var(--card);
  position: sticky; top: 0; z-index: 10; }
.top-nav-brand { display: flex; align-items: center; gap: 1rem; }
.top-nav .brand { color: var(--accent); text-decoration: none; font-weight: 600;
  font-size: 1.1rem; letter-spacing: -.02em; }
.top-nav .brand:hover { opacity: .85; }
.top-nav .nav-link { color: var(--muted); text-decoration: none; font-size: .9rem; font-weight: 500; }
.top-nav .nav-link:hover { color: var(--accent); }
.top-nav-end { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap;
  justify-content: flex-end; font-size: .85rem; color: var(--muted); }
.top-nav-end .logout { margin: 0; }
.top-nav-end .logout button { text-decoration: underline; }
.account-email { max-width: 14rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.theme-toggle { padding: .2rem .55rem; border: 1px solid var(--line); border-radius: .375rem;
  background: var(--bg); color: var(--text); line-height: 1.3; }
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.theme-label-to-light { display: none; }
[data-theme="dark"] .theme-label-to-dark { display: none; }
[data-theme="dark"] .theme-label-to-light { display: inline; }
main { max-width: 34rem; margin: 0 auto; padding: 2.5rem 1rem; }
h1 { margin: 0 0 1rem; text-align: center; font-size: 4rem; font-weight: 200; color: var(--accent); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: .75rem; overflow: hidden;
  box-shadow: 0 2px 12px rgb(0 0 0 / .06); }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input[type="text"] { font: inherit; color: inherit; background: none; border: 0; outline: 0; width: 100%; }
.new-todo { display: flex; align-items: center; border-bottom: 1px solid var(--line); }
.new-todo input { padding: 1rem 1rem 1rem .25rem; font-size: 1.15rem; }
.toggle-all { padding: 1rem .75rem 1rem 1rem; color: var(--muted); transform: rotate(90deg); }
.todos { list-style: none; margin: 0; padding: 0; }
.todo { display: flex; align-items: center; gap: .75rem; padding: .75rem 1rem; border-bottom: 1px solid var(--line); }
.todo label { flex: 1; word-break: break-word; cursor: text; }
.todo.completed label { color: var(--done); text-decoration: line-through; }
.todo .toggle { width: 1.25rem; height: 1.25rem; accent-color: var(--accent); }
.todo .edit { flex: 1; border-bottom: 1px solid var(--accent); }
.drag-handle { color: var(--muted); cursor: grab; user-select: none; font-size: 1rem; line-height: 1;
  letter-spacing: -.15em; opacity: .45; }
.todo:hover .drag-handle, .drag-handle:hover { opacity: 1; }
.todo-chosen .drag-handle { cursor: grabbing; }
.todo-ghost { opacity: .4; }
.todos.sort-disabled .drag-handle { cursor: default; opacity: .2; pointer-events: none; }
.destroy { color: var(--muted); font-size: 1.4rem; line-height: 1; opacity: 0; }
.todo:hover .destroy, .destroy:focus-visible { opacity: 1; }
.destroy:hover { color: var(--accent); }
.controls { display: flex; align-items: center; justify-content: space-between; gap: .5rem;
  padding: .6rem 1rem; font-size: .85rem; color: var(--muted); flex-wrap: wrap; }
.filters { display: flex; gap: .25rem; }
.filters button, .clear { padding: .15rem .5rem; border: 1px solid transparent; border-radius: .25rem; }
.filters button:hover, .clear:hover { border-color: var(--line); }
.filters button.selected { border-color: var(--accent); }
.empty { margin: 0; padding: 1.5rem 1rem; text-align: center; color: var(--muted); }
.hint { text-align: center; color: var(--muted); font-size: .85rem; }
.counter { display: flex; align-items: center; justify-content: center; gap: .75rem;
  margin: 0 0 1rem; }
.counter button { width: 2.25rem; height: 2.25rem; border: 1px solid var(--line);
  border-radius: .5rem; background: var(--card); color: var(--text); font-size: 1.25rem;
  line-height: 1; }
.counter button:hover { border-color: var(--accent); color: var(--accent); }
.counter-value { min-width: 2rem; text-align: center; font-size: 1.5rem; font-variant-numeric: tabular-nums; }
.auth { padding: 1.5rem; }
.auth h2 { margin: 0 0 1rem; font-weight: 500; }
.auth form { display: grid; gap: 1rem; }
.auth label { display: grid; gap: .25rem; font-size: .85rem; color: var(--muted); }
.auth input { font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--line);
  border-radius: .5rem; padding: .6rem .75rem; }
.auth input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.primary { background: var(--accent); color: #fff; border-radius: .5rem; padding: .7rem; font-weight: 600; }
.error { margin: 0 0 1rem; padding: .6rem .75rem; border-radius: .5rem; color: var(--accent);
  border: 1px solid var(--accent); font-size: .9rem; }
.switch { margin: 1rem 0 0; text-align: center; font-size: .9rem; }
.switch a { color: var(--muted); }

/* —— Document list —— */
.new-doc { padding: 1rem; border-bottom: 1px solid var(--line); }
.new-doc .primary { width: auto; padding: .55rem 1rem; }
.doc-list { list-style: none; margin: 0; padding: 0; }
.doc-item { display: flex; align-items: center; gap: .75rem; padding: .85rem 1rem;
  border-bottom: 1px solid var(--line); }
.doc-item:last-child { border-bottom: 0; }
.doc-title { flex: 1; color: var(--text); text-decoration: none; font-weight: 500;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.doc-title:hover { color: var(--accent); }
.doc-updated { font-size: .8rem; color: var(--muted); white-space: nowrap; }
.doc-delete { margin: 0; }
.doc-item .destroy { opacity: 0; }
.doc-item:hover .destroy, .doc-item .destroy:focus-visible { opacity: 1; }

/* —— Document editor (Google Docs–like) —— */
body.doc-page main { max-width: none; margin: 0; padding: 0; }
.doc-shell { display: flex; flex-direction: column; min-height: calc(100vh - 3.2rem); }
.doc-header { display: flex; align-items: center; gap: .75rem; padding: .6rem 1.25rem;
  background: var(--card); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.doc-title-input { flex: 1; font-size: 1.15rem; font-weight: 400; padding: .25rem .1rem;
  border: 0; outline: 0; background: transparent; color: var(--text); min-width: 8rem; }
.doc-title-input:focus { outline: 0; }
.doc-status { font-size: .8rem; color: var(--muted); white-space: nowrap; min-width: 4.5rem; }
.doc-presence { display: flex; align-items: center; gap: .25rem; }
.doc-presence-chip {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.75rem; height: 1.75rem; border-radius: 50%;
  background: var(--presence-color, #888); color: #111; font-size: .65rem; font-weight: 700;
  border: 2px solid var(--card); margin-left: -.35rem; }
.doc-presence-chip:first-child { margin-left: 0; }
.doc-share { margin: 0; }
.doc-share-label { display: inline-flex; align-items: center; gap: .4rem;
  font-size: .8rem; color: var(--muted); white-space: nowrap; cursor: pointer; }
.doc-copy-link, .doc-delete-btn { font-size: .85rem; color: var(--muted); padding: .35rem .65rem;
  border: 1px solid var(--line); border-radius: .375rem; background: transparent; cursor: pointer; }
.doc-copy-link:hover, .doc-delete-btn:hover { color: var(--accent); border-color: var(--accent); }
.doc-shared-badge { font-size: .8rem; color: var(--muted); white-space: nowrap;
  padding: .25rem .5rem; border: 1px dashed var(--line); border-radius: .375rem; }

/* Yjs / TipTap collaboration carets */
.collaboration-carets__caret {
  position: relative; margin-left: -1px; margin-right: -1px;
  border-left: 1px solid; border-right: 1px solid; word-break: normal;
  pointer-events: none; }
.collaboration-carets__label {
  position: absolute; top: -1.4em; left: -1px; font-size: .7rem; font-style: normal;
  font-weight: 600; line-height: normal; user-select: none; color: #111;
  padding: .1rem .35rem; border-radius: .25rem .25rem .25rem 0; white-space: nowrap; }

.doc-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: .15rem;
  padding: .35rem .75rem; background: var(--card); border-bottom: 1px solid var(--line);
  position: sticky; top: 3.25rem; z-index: 5; }
.tb-btn { display: inline-flex; align-items: center; justify-content: center;
  width: 2rem; height: 2rem; border-radius: .25rem; color: var(--text); }
.tb-btn:hover { background: rgb(0 0 0 / .06); }
[data-theme="dark"] .tb-btn:hover { background: rgb(255 255 255 / .08); }
.tb-btn.is-active { background: #d3e3fd; color: #174ea6; }
[data-theme="dark"] .tb-btn.is-active { background: #174ea6; color: #d3e3fd; }
.tb-text { font-size: .72rem; font-weight: 700; letter-spacing: -.02em; line-height: 1; }
.tb-sep { width: 1px; height: 1.25rem; background: var(--line); margin: 0 .35rem; }

.doc-canvas { flex: 1; background: var(--doc-canvas); padding: 1.5rem 1rem 3rem;
  display: flex; justify-content: center; align-items: flex-start; overflow: auto; }

/* Mount only — page size/margins/gaps owned by PaginationPlus */
.doc-editor { color: var(--doc-page-text); }

.doc-editor .doc-prose, .doc-editor .tiptap {
  outline: 0; font: 11pt/1.5 Arial, Helvetica, sans-serif;
  color: var(--doc-page-text); background: var(--doc-page);
  box-shadow: 0 1px 3px rgb(0 0 0 / .12), 0 4px 14px rgb(0 0 0 / .08); }
.doc-editor .tiptap.rm-with-pagination {
  background: var(--doc-page);
  border-color: var(--doc-page-gap-border) !important; }
.doc-editor .tiptap p { margin: 0 0 .5em; }
.doc-editor .tiptap h1 { font-size: 20pt; font-weight: 700; margin: 0 0 .4em; }
.doc-editor .tiptap h2 { font-size: 16pt; font-weight: 700; margin: 0 0 .4em; }
.doc-editor .tiptap h3 { font-size: 14pt; font-weight: 700; margin: 0 0 .4em; }
.doc-editor .tiptap ul, .doc-editor .tiptap ol { margin: 0 0 .5em; padding-left: 1.5em; }
.doc-editor .tiptap blockquote { margin: 0 0 .5em; padding-left: 1em;
  border-left: 3px solid #dadce0; color: #5f6368; }
.doc-editor .tiptap a { color: #1155cc; text-decoration: underline; }
.doc-editor .tiptap p.is-editor-empty:first-child::before,
.doc-editor .tiptap .is-empty::before {
  color: #9aa0a6; content: attr(data-placeholder); float: left; height: 0; pointer-events: none; }

/* —— Block-based chrome (Notion-like) —— */
.doc-editor { position: relative; }
.doc-editor .tiptap.block-editor > * {
  position: relative; border-radius: .35rem; transition: background .12s ease;
  padding-left: .15rem; padding-right: .15rem; }
.doc-editor .tiptap.block-editor > *.is-block-active {
  background: rgb(0 0 0 / .035); }
[data-theme="dark"] .doc-editor .tiptap.block-editor > *.is-block-active {
  background: rgb(255 255 255 / .06); }
.doc-editor .tiptap.block-editor > .mcq--atom.is-block-active {
  outline: 1px solid var(--line); }

.block-handle {
  position: absolute; z-index: 4; display: flex; flex-direction: column; gap: 2px;
  transform: translateY(2px); }
.block-handle[hidden] { display: none !important; }
.block-handle__plus, .block-handle__drag {
  width: 1.35rem; height: 1.35rem; border: 0; border-radius: .25rem;
  background: transparent; color: var(--muted); font-size: .85rem; line-height: 1;
  display: inline-flex; align-items: center; justify-content: center; cursor: pointer;
  opacity: .55; }
.block-handle__drag { cursor: grab; letter-spacing: -.05em; }
.block-handle__plus:hover, .block-handle__drag:hover { opacity: 1;
  background: rgb(0 0 0 / .06); color: var(--text); }
[data-theme="dark"] .block-handle__plus:hover,
[data-theme="dark"] .block-handle__drag:hover { background: rgb(255 255 255 / .1); }
.block-handle.is-dragging .block-handle__drag { cursor: grabbing; opacity: 1; }

.slash-menu {
  position: fixed; z-index: 40; min-width: 16rem; max-width: 20rem; max-height: 16rem;
  overflow: auto; padding: .35rem; border: 1px solid var(--line); border-radius: .5rem;
  background: var(--card); color: var(--text);
  box-shadow: 0 8px 28px rgb(0 0 0 / .14); }
.slash-menu__item {
  display: grid; gap: .1rem; width: 100%; text-align: left; padding: .45rem .55rem;
  border: 0; border-radius: .35rem; background: transparent; color: inherit; cursor: pointer; }
.slash-menu__item:hover, .slash-menu__item.is-selected { background: rgb(0 0 0 / .06); }
[data-theme="dark"] .slash-menu__item:hover,
[data-theme="dark"] .slash-menu__item.is-selected { background: rgb(255 255 255 / .08); }
.slash-menu__title { font-size: .9rem; font-weight: 600; }
.slash-menu__desc { font-size: .75rem; color: var(--muted); }
.slash-menu__empty { padding: .6rem; font-size: .85rem; color: var(--muted); }
.doc-editor .tiptap .tiptap-mathematics-render {
  cursor: pointer; border-radius: .2em; padding: 0 .15em;
  transition: background-color .12s ease; }
.doc-editor .tiptap .tiptap-mathematics-render:hover,
.doc-editor .tiptap .tiptap-mathematics-render--editable {
  background: #e8f0fe; }
.doc-editor .tiptap .tiptap-mathematics-render[data-type="block-math"] {
  display: block; margin: .75em 0; padding: .5em .75em; text-align: center;
  overflow-x: auto; }
.doc-editor .tiptap .inline-math-error,
.doc-editor .tiptap .block-math-error {
  color: #c5221f; font-family: ui-monospace, monospace; font-size: .9em; }

@media (max-width: 720px) {
  .doc-header { flex-wrap: wrap; }
}

/*
 * Print/PDF capture chrome — PaginationPlus uses float + margin-top page
 * widgets (not discrete page boxes), so browser reflow print is inaccurate.
 * We rasterize the on-screen editor instead; these rules only prep capture.
 *
 * Gap borders must die too: with pageGap=0 the gap node still keeps 1px
 * top+bottom borders, which adds ~2px per page and causes progressive drift
 * when slicing by --rm-page-height alone.
 */
body.doc-printing .doc-canvas { overflow: visible; }
body.doc-printing .doc-editor .doc-prose,
body.doc-printing .doc-editor .tiptap,
body.doc-printing .rm-with-pagination {
  box-shadow: none !important;
  border: 0 !important;
}
body.doc-printing .rm-pagination-gap {
  height: 0 !important;
  min-height: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  border: 0 !important;
  background: transparent !important;
}
body.doc-printing .collaboration-carets__caret,
body.doc-printing .collaboration-carets__label,
body.doc-printing .doc-editor .tiptap p.is-editor-empty:first-child::before {
  display: none !important;
}

/* —— Shared UI dialog (shadcn-like anatomy; native <dialog>) —— */
.ui-dialog {
  margin: auto; padding: 0; border: 0; border-radius: .75rem;
  background: transparent; max-width: calc(100vw - 2rem); width: 26rem;
  color: var(--text);
}
.ui-dialog.ui-dialog-wide { width: 32rem; }
.ui-dialog-section {
  margin: .35rem 0 0; font-size: .8rem; font-weight: 600;
  color: var(--muted); letter-spacing: .02em; text-transform: uppercase;
}
.ui-dialog-check {
  display: flex; align-items: center; gap: .5rem;
  font-size: .875rem; color: var(--text); cursor: pointer;
}
.ui-dialog-check input { accent-color: var(--accent); }
.ui-dialog-input:disabled {
  opacity: .65; cursor: not-allowed;
}
.ui-dialog::backdrop {
  background: rgb(0 0 0 / .45);
}
.ui-dialog-panel {
  display: flex; flex-direction: column; gap: .85rem;
  margin: 0; padding: 1.25rem 1.35rem 1.1rem;
  background: var(--card); border: 1px solid var(--line); border-radius: .75rem;
  box-shadow: 0 8px 28px rgb(0 0 0 / .18);
}
.ui-dialog-title {
  margin: 0; font-size: 1.05rem; font-weight: 600; letter-spacing: -.01em;
}
.ui-dialog-desc {
  margin: 0; font-size: .875rem; color: var(--muted); line-height: 1.45;
}
.ui-dialog-desc:empty { display: none; }
.ui-dialog-field { display: flex; flex-direction: column; gap: .35rem; }
.ui-dialog-label { font-size: .8rem; font-weight: 500; color: var(--muted); }
.ui-dialog-input, .ui-dialog-select {
  width: 100%; padding: .55rem .7rem; border: 1px solid var(--line);
  border-radius: .5rem; background: var(--bg); color: var(--text);
  font: inherit; outline: 0;
}
.ui-dialog-input:focus, .ui-dialog-select:focus {
  border-color: var(--accent); box-shadow: 0 0 0 3px rgb(225 29 72 / .18);
}
.ui-dialog-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: .65rem;
}
.ui-dialog-row .ui-dialog-field { min-width: 0; }
@media (max-width: 420px) {
  .ui-dialog-row { grid-template-columns: 1fr; }
}
.ui-dialog-preview {
  min-height: 2.5rem; padding: .65rem .75rem; border-radius: .5rem;
  border: 1px dashed var(--line); background: var(--bg);
  overflow-x: auto; text-align: center; color: #000;
}
.ui-dialog-preview[hidden] { display: none; }
.ui-dialog-preview.is-error {
  color: #c5221f; font-family: ui-monospace, monospace; font-size: .85rem;
  text-align: left;
}
.ui-dialog-footer {
  display: flex; flex-direction: row-reverse; justify-content: flex-start;
  gap: .5rem; margin-top: .15rem;
}
.ui-dialog-cancel, .ui-dialog-confirm {
  padding: .45rem .9rem; border-radius: .5rem; font-size: .9rem; font-weight: 500;
  border: 1px solid var(--line);
}
.ui-dialog-cancel:hover { border-color: var(--muted); }
.ui-dialog-confirm.primary {
  background: var(--accent); color: #fff; border-color: var(--accent);
}
.ui-dialog-confirm.primary:hover { filter: brightness(1.05); }

/* —— Question authoring —— */
body.question-page main { max-width: none; margin: 0; padding: 0; }
.question-shell { display: flex; flex-direction: column; min-height: calc(100vh - 3.2rem); }
.question-header { display: flex; align-items: center; gap: .75rem; padding: .6rem 1.25rem;
  background: var(--card); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.q-type-select { font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: .375rem; padding: .35rem .5rem; }
.q-mode-toggle { display: inline-flex; border: 1px solid var(--line); border-radius: .375rem;
  overflow: hidden; }
.q-mode-btn { padding: .35rem .7rem; font-size: .85rem; color: var(--muted);
  border-right: 1px solid var(--line); background: transparent; }
.q-mode-btn:last-child { border-right: 0; }
.q-mode-btn.is-active, .q-mode-btn:hover { color: var(--text); background: rgb(0 0 0 / .05); }
[data-theme="dark"] .q-mode-btn.is-active,
[data-theme="dark"] .q-mode-btn:hover { background: rgb(255 255 255 / .08); }
.q-layout-bar { display: flex; flex-wrap: wrap; gap: .75rem 1.25rem; padding: .5rem 1.25rem;
  background: var(--card); border-bottom: 1px solid var(--line); font-size: .85rem; color: var(--muted); }
.q-layout-field { display: inline-flex; align-items: center; gap: .4rem; }
.q-layout-field select { font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: .375rem; padding: .2rem .4rem; }
.q-canvas { flex: 1; background: var(--doc-canvas); padding: 1.5rem 1rem 3rem;
  display: flex; justify-content: center; align-items: flex-start; overflow: auto; }
.q-form-card, .q-preview { width: min(48rem, 100%); background: var(--doc-page);
  color: var(--doc-page-text); box-shadow: 0 1px 3px rgb(0 0 0 / .12), 0 4px 14px rgb(0 0 0 / .08);
  padding: 1.5rem 1.75rem; min-height: 16rem; }
.q-form-field { display: grid; gap: .35rem; margin-bottom: 1rem; }
.q-form-label { font-size: .8rem; color: var(--muted); text-transform: uppercase;
  letter-spacing: .04em; }
.q-stem { font: inherit; color: var(--doc-page-text); background: var(--bg);
  border: 1px solid var(--line); border-radius: .5rem; padding: .65rem .75rem;
  width: 100%; resize: vertical; }
.q-options-editor { display: grid; gap: .65rem; margin-bottom: .75rem; }
.q-option-row { display: grid; grid-template-columns: 1.5rem minmax(0, 1fr) auto auto;
  gap: .5rem; align-items: center; }
.q-option-letter { color: var(--muted); font-weight: 600; }
.q-option-text { font: inherit; color: var(--doc-page-text); background: var(--bg);
  border: 1px solid var(--line); border-radius: .375rem; padding: .4rem .55rem; width: 100%; }
.q-option-correct { display: inline-flex; align-items: center; gap: .3rem;
  font-size: .8rem; color: var(--muted); white-space: nowrap; }
.q-option-remove, .q-add-option { font-size: .8rem; color: var(--muted);
  padding: .3rem .55rem; border: 1px solid var(--line); border-radius: .375rem; }
.q-option-remove:hover, .q-add-option:hover { color: var(--accent); border-color: var(--accent); }
.q-form-hint { margin: 1rem 0 0; font-size: .8rem; color: var(--muted); }

.mcq { container-type: inline-size; width: 100%; min-width: 0; }
.mcq--atom { border: 1px solid var(--line); border-radius: .5rem; padding: .75rem;
  margin: .5rem 0; background: var(--doc-page); }
.mcq--selected { outline: 2px solid var(--accent); outline-offset: 2px; }
.mcq-edit-toggle, .mcq-inline-done, .mcq-inline-actions button {
  font-size: .8rem; color: var(--muted); padding: .25rem .55rem;
  border: 1px solid var(--line); border-radius: .375rem; margin-bottom: .5rem; }
.mcq-edit-toggle:hover, .mcq-inline-actions button:hover {
  color: var(--accent); border-color: var(--accent); }
.mcq-inline-stem { width: 100%; font: inherit; padding: .5rem .65rem;
  border: 1px solid var(--line); border-radius: .375rem; margin-bottom: .65rem;
  resize: vertical; color: var(--doc-page-text); background: var(--bg); }
.mcq-inline-options { display: grid; gap: .45rem; margin-bottom: .65rem; }
.mcq-inline-option-row { display: grid; grid-template-columns: 1.5rem minmax(0, 1fr) auto;
  gap: .45rem; align-items: center; }
.mcq-inline-option-row input { font: inherit; padding: .35rem .5rem;
  border: 1px solid var(--line); border-radius: .375rem; width: 100%;
  color: var(--doc-page-text); background: var(--bg); }
.mcq-inline-actions { display: flex; gap: .5rem; flex-wrap: wrap; }
.mcq__prompt { margin: 0 0 .5em; font: 11pt/1.5 Arial, Helvetica, sans-serif; }
.mcq__options { display: grid;
  grid-template-columns: repeat(var(--mcq-small-cols, 1), minmax(0, 1fr));
  gap: 12px 20px; margin-top: .75rem; }
.mcq__option { display: grid; grid-template-columns: 22px 22px minmax(0, 1fr);
  align-items: start; gap: 8px; min-width: 0; }
.mcq__option-text { min-width: 0; overflow-wrap: anywhere;
  font: 11pt/1.5 Arial, Helvetica, sans-serif; }
.mcq__marker, .mcq__letter { color: var(--muted); line-height: 1.5; }
@container (min-width: 36rem) {
  .mcq__options {
    grid-template-columns: repeat(var(--mcq-wide-cols, 2), minmax(0, 1fr));
  }
}
@media print {
  @page { size: A4; margin: 15mm; }
  .mcq { container-type: normal; break-inside: auto; }
  .mcq__options {
    grid-template-columns: repeat(var(--mcq-print-cols, 2), minmax(0, 1fr));
  }
  .mcq__option { break-inside: avoid; }
  .mcq__prompt { break-after: avoid; }
  .question-header, .q-layout-bar, .doc-toolbar, .mcq-edit-toggle,
  .mcq-inline-actions, .q-option-remove, .q-add-option { display: none !important; }
}

/* —— Files / uploader —— */
.file-uploader { display: block; padding: 1rem; border-bottom: 1px solid var(--line); }
.fu-dropzone { border: 1.5px dashed var(--line); border-radius: .5rem; padding: 1.5rem 1rem;
  text-align: center; cursor: pointer; background: var(--bg); transition: border-color .15s, background .15s; }
.fu-dropzone:hover, .fu-dropzone:focus-visible { border-color: var(--accent); outline: none; }
.fu-dropzone.is-dragover { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, var(--bg)); }
.fu-drop-title { margin: 0 0 .35rem; font-weight: 500; }
.fu-drop-hint { margin: 0; font-size: .85rem; color: var(--muted); }
.fu-toolbar { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: .85rem; }
.fu-toolbar .primary { width: auto; padding: .55rem 1rem; }
.fu-toolbar .primary:disabled, .fu-clear-done:disabled { opacity: .45; cursor: not-allowed; }
.fu-clear-done { padding: .55rem .85rem; border: 1px solid var(--line); border-radius: .5rem;
  color: var(--muted); }
.fu-clear-done:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.fu-queue { list-style: none; margin: .85rem 0 0; padding: 0; display: grid; gap: .65rem; }
.fu-item { display: flex; align-items: flex-start; gap: .75rem; padding: .65rem .75rem;
  border: 1px solid var(--line); border-radius: .5rem; background: var(--bg); }
.fu-item-main { flex: 1; min-width: 0; display: grid; gap: .35rem; }
.fu-name { font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fu-meta { font-size: .8rem; color: var(--muted); }
.fu-item progress { width: 100%; height: .45rem; border-radius: 999px; overflow: hidden;
  accent-color: var(--accent); }
.fu-actions { display: flex; flex-direction: column; gap: .25rem; flex-shrink: 0; }
.fu-actions button { font-size: .8rem; color: var(--muted); padding: .2rem .45rem;
  border: 1px solid var(--line); border-radius: .375rem; }
.fu-actions button:hover { color: var(--accent); border-color: var(--accent); }
.fu-cancel:hover { color: var(--accent); }

.file-library { margin-top: 1rem; }
.file-library-title { margin: 0; padding: .85rem 1rem; font-size: 1rem; font-weight: 500;
  border-bottom: 1px solid var(--line); }
.file-list { list-style: none; margin: 0; padding: 0; }
.file-item { display: flex; align-items: center; gap: .75rem; padding: .85rem 1rem;
  border-bottom: 1px solid var(--line); }
.file-item:last-child { border-bottom: 0; }
.file-name { flex: 1; color: var(--text); text-decoration: none; font-weight: 500;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-name:hover { color: var(--accent); }
.file-meta { font-size: .8rem; color: var(--muted); white-space: nowrap; }
.file-empty { padding: 1.5rem 1rem; text-align: center; color: var(--muted); }
.file-item .destroy { opacity: 0; }
.file-item:hover .destroy, .file-item .destroy:focus-visible { opacity: 1; }