/* IELTS CB Reading Practice — Eruditus / 乐多闻 palette */
:root {
  --bg: #f4f7f6;
  --panel: #ffffff;
  --border: #e4e9ee;
  --border-strong: #cfd8e0;
  --text: #000000;
  --muted: #8a95a5;
  --accent: #00a3a3;
  --accent-hover: #008f8f;
  --accent-soft: #e6f4f2;
  --selected: #00a3a3;
  --selected-bg: #e6f4f2;
  --correct: #2a9b5a;
  --correct-bg: #e8f7ef;
  --wrong: #d64545;
  --wrong-bg: #fdecec;
  --highlight: #fff59d;
  --topbar-h: 56px;
  --footer-h: 60px;
  --font-size: 17px;
  --passage-font: 17px;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(44, 62, 80, 0.06);
  --font: "Wix Madefor Text", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  font-family: var(--font);
  font-size: var(--font-size);
  color: var(--text);
  background: var(--bg);
  overflow: hidden;
  text-align: left;
}

button, input, select, textarea {
  font-family: inherit;
}

/* —— Top bar (light chrome) —— */
.topbar {
  height: var(--topbar-h);
  background: var(--panel);
  color: var(--text);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  gap: 16px;
  flex-shrink: 0;
  box-shadow: var(--shadow);
}

.topbar-title {
  font-size: 15px;
  font-weight: 700;
  white-space: nowrap;
  color: var(--text);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.topbar-nav {
  display: flex;
  gap: 6px;
}

.topbar-center {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
  min-width: 0;
}

.timer-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  font-variant-numeric: tabular-nums;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
}

.timer-wrap.paused {
  opacity: 0.55;
}

.btn-icon {
  background: var(--bg);
  border: 1px solid var(--border-strong);
  color: var(--text);
  border-radius: 6px;
  padding: 4px 10px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
}

.btn-icon:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
  flex-shrink: 0;
}
.topbar-right .timer-wrap {
  margin-right: 4px;
}

.font-label {
  font-size: 12px;
  color: var(--muted);
}

.font-toggle {
  display: flex;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  overflow: hidden;
  background: var(--bg);
}

.font-toggle button {
  background: transparent;
  border: none;
  color: var(--text);
  padding: 4px 10px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  border-right: 1px solid var(--border);
}

.font-toggle button:last-child {
  border-right: none;
}

.font-toggle button.active {
  background: var(--accent-soft);
  color: var(--accent);
}

.font-toggle button:hover:not(.active) {
  background: #eef2f4;
}

.passage-picker-wrap { min-width: 0; }
.passage-select {
  max-width: 280px;
  appearance: none;
  -webkit-appearance: none;
  background-color: var(--bg);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 6px 28px 6px 10px;
  font-size: 12px;
  font-family: inherit;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath fill='%23000000' d='M1.4 1.6L6 6.2l4.6-4.6L12 2.8 6 8.8 0 2.8z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 10px 7px;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  border: 0;
}

/* —— Workspace + sidebar —— */
.workspace {
  display: flex;
  height: calc(100% - var(--topbar-h) - var(--footer-h));
  min-height: 0;
}

.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.sidebar-head {
  padding: 14px 10px 10px 14px;
  font-weight: 700;
  font-size: 13px;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}
.sidebar-collapse-btn {
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--muted);
  width: 26px;
  height: 26px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  flex-shrink: 0;
  font-family: inherit;
}
.sidebar-collapse-btn:hover {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
}
.workspace.sidebar-collapsed .sidebar {
  width: 0 !important;
  min-width: 0;
  padding: 0;
  border: none;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}
#btnToggleSidebar.active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

.sidebar-list {
  overflow: auto;
  flex: 1;
  padding: 0 8px 12px;
}

.sidebar-item {
  display: block;
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
  color: var(--text);
  margin-bottom: 2px;
  font-family: inherit;
  font-size: 12.5px;
  line-height: 1.35;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-item:hover {
  background: #eef3f2;
}

.sidebar-item.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
  /* no left accent bar */
  box-shadow: none;
}

.sidebar-item .sid {
  font-weight: 700;
  color: inherit;
  margin-right: 6px;
}

.sidebar-item.active .sid {
  color: var(--accent);
}

.sidebar-item .stitle {
  font-weight: 400;
  color: inherit;
}

.workspace .main {
  flex: 1;
  height: 100%;
  display: grid;
  grid-template-columns: 1fr 6px 1fr;
  min-width: 0;
}

.panel {
  background: var(--panel);
  overflow: auto;
  height: 100%;
}

.panel-passage {
  padding: 16px 22px 40px;
}

.panel-questions {
  padding: 16px 18px 40px;
  background: #fafcfb;
}

.workspace .panel-passage,
.workspace .panel-questions {
  width: auto;
  min-width: 0;
}

.divider {
  width: 6px;
  background: var(--border);
  cursor: col-resize;
  flex-shrink: 0;
  position: relative;
  z-index: 2;
}

.divider:hover,
.divider.dragging {
  background: var(--accent);
}

.divider::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 2px;
  height: 28px;
  background: rgba(0,0,0,0.12);
  border-radius: 1px;
}

/* —— Passage —— */
.passage-toolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  position: sticky;
  top: 0;
  background: var(--panel);
  padding: 8px 0;
  z-index: 1;
  border-bottom: 1px solid var(--border);
}

.btn-sm {
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid #c5e8e4;
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
  font-weight: 500;
}

.btn-sm:hover {
  background: #d4efeb;
}

.passage-title {
  font-size: 1.3em;
  font-weight: 700;
  margin: 12px 0 18px;
  text-align: left;
  line-height: 1.35;
  color: var(--text);
}

.para {
  display: grid;
  grid-template-columns: 1.4em 1fr;
  gap: 8px;
  margin-bottom: 14px;
  font-size: var(--passage-font);
}

.para-label {
  font-weight: 700;
  color: var(--accent);
  padding-top: 2px;
  /* plain letter — no box/badge */
  background: none;
  border: none;
  width: auto;
  height: auto;
  display: inline;
  border-radius: 0;
}

.para-text {
  line-height: 1.65;
  text-align: left;
}

.para-text mark.hl,
mark.hl,
mark.highlight {
  background: #a05a2c;
  color: #fff;
  padding: 0 2px;
  border-radius: 0;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

#passageBody {
  font-size: var(--passage-font);
  color: var(--text);
}

/* —— Questions —— */
.q-group {
  margin-bottom: 24px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 14px 16px;
  box-shadow: var(--shadow);
}

.q-group-header {
  background: #f4f7f6;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 12px;
}

.q-group-title {
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 6px;
  color: var(--text);
  text-align: left;
}

.q-instruction {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--text);
  text-align: left;
}

.q-wordlimit {
  margin-top: 6px;
  font-size: 12px;
  color: var(--muted);
}

.q-notes-title {
  margin: 14px 0 12px;
  font-weight: 700;
  text-align: center;
  font-size: 1.05em;
  color: var(--text);
}

.q-no {
  display: inline-block;
  min-width: 1.5em;
  font-weight: 700;
  color: var(--accent);
  margin-right: 4px;
  flex-shrink: 0;
}

/* Matching table */
.match-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  font-size: 13.5px;
}

.match-table th,
.match-table td {
  border: 1px solid var(--border);
  padding: 8px 6px;
  text-align: center;
  vertical-align: middle;
}

.match-table th {
  background: #f4f7f6;
  font-weight: 600;
  font-size: 12px;
  color: var(--muted);
}

.match-table th.col-info,
.match-table td.col-info {
  text-align: left;
  padding-left: 10px;
  padding-right: 10px;
  min-width: 160px;
}

.match-table th.col-num,
.match-table td.col-num {
  width: 36px;
  font-weight: 700;
  background: #f8faf9;
}

.match-table td.letter-cell {
  width: 40px;
  padding: 4px;
  cursor: pointer;
  user-select: none;
}

.match-table td.letter-cell .letter-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 30px;
  border-radius: 6px;
  border: 1px solid transparent;
  font-weight: 600;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}

.match-table td.letter-cell:hover .letter-btn {
  background: var(--accent-soft);
  border-color: #c5e8e4;
  color: var(--accent);
}

.match-table td.letter-cell.selected .letter-btn,
.letter-btn.selected {
  background: var(--accent) !important;
  border-color: var(--accent) !important;
  color: #fff !important;
}

.match-table tr.result-correct td.letter-cell.selected .letter-btn {
  background: var(--correct) !important;
  border-color: var(--correct) !important;
}

.match-table tr.result-wrong td.letter-cell.selected .letter-btn {
  background: var(--wrong) !important;
  border-color: var(--wrong) !important;
}

.match-table tr.result-correct td.col-info::after,
.match-table tr.result-wrong td.col-info::after {
  display: block;
  font-size: 11px;
  margin-top: 4px;
  font-weight: 600;
}

.match-table tr.result-correct td.col-info::after {
  content: attr(data-feedback);
  color: var(--correct);
}

.match-table tr.result-wrong td.col-info::after {
  content: attr(data-feedback);
  color: var(--wrong);
}

/* TFNG / YNNG — radio list */
.tfng-list,
.mcq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.tfng-item,
.mcq-item {
  background: transparent;
  border: none;
  padding: 4px 0;
  text-align: left;
}

.tfng-item.result-correct,
.mcq-item.result-correct,
.completion-item.result-correct,
.q-row-feedback.result-correct {
  background: var(--correct-bg);
  border-radius: 8px;
  outline: 1px solid var(--correct);
  padding: 8px;
}

.tfng-item.result-wrong,
.mcq-item.result-wrong,
.completion-item.result-wrong,
.q-row-feedback.result-wrong {
  background: var(--wrong-bg);
  border-radius: 8px;
  outline: 1px solid var(--wrong);
  padding: 8px;
}

.completion-item.result-unanswered,
.mcq-item.result-unanswered,
.tfng-item.result-unanswered,
.match-table tr.result-unanswered {
  outline: 1px dashed #c5cdd4;
  border-radius: 8px;
}

.tfng-stem,
.mcq-stem {
  display: grid;
  grid-template-columns: 2.25em 1fr;
  column-gap: 10px;
  margin-bottom: 10px;
  line-height: 1.55;
  text-align: left;
  align-items: start;
}

.tfng-stem .q-no,
.mcq-stem .q-no {
  grid-column: 1;
  margin-right: 0;
  text-align: left;
  padding-top: 0;
}

.tfng-stem .stem-text,
.mcq-stem .stem-text {
  grid-column: 2;
  min-width: 0;
}

/* Option group indented under stem text (not under q number) */
.tfng-opts,
.mcq-opts {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  margin-left: calc(2.25em + 10px);
  padding-left: 0;
}

.radio-opt {
  display: grid;
  grid-template-columns: 18px 1fr;
  column-gap: 8px;
  align-items: start;
  cursor: pointer;
  font-size: 14px;
  line-height: 1.45;
  color: var(--text);
  padding: 2px 0;
  text-align: left;
  background: none;
  border: none;
  font-family: inherit;
  width: 100%;
  max-width: 36em;
}

.radio-opt input[type="radio"] {
  appearance: auto;
  width: 16px;
  height: 16px;
  margin: 2px 0 0;
  accent-color: var(--accent);
  flex-shrink: 0;
  cursor: pointer;
  grid-column: 1;
}

.radio-opt .radio-text {
  grid-column: 2;
  min-width: 0;
  /* hanging indent: wrap aligns under text, not under letter A/B/C */
  padding-left: 1.35em;
  text-indent: -1.35em;
}

.radio-opt .radio-letter {
  font-weight: 700;
  color: var(--text);
}

.radio-opt .radio-label {
  color: var(--text);
}

.radio-opt.selected .radio-letter,
.radio-opt.selected .radio-label {
  color: var(--accent);
  font-weight: 600;
}

.hint {
  color: var(--muted);
  font-size: 12px;
  margin-left: 6px;
}

/* Multi-select still uses checkbox-like buttons but compact */
.mcq-opt.multi {
  display: grid;
  grid-template-columns: 18px 1.25em 1fr;
  column-gap: 8px;
  align-items: start;
  border: none;
  background: transparent;
  padding: 2px 0;
  cursor: pointer;
  font: inherit;
  text-align: left;
  width: 100%;
  max-width: 36em;
}
.mcq-opt.multi::before {
  content: "";
  grid-column: 1;
  margin-top: 2px;
  width: 14px;
  height: 14px;
  border: 2px solid var(--border-strong);
  border-radius: 3px;
  flex-shrink: 0;
}
.mcq-opt.multi .mcq-letter { grid-column: 2; }
.mcq-opt.multi .mcq-text { grid-column: 3; min-width: 0; }

.mcq-opt.multi.selected::before {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: inset 0 0 0 2px #fff;
}

.mcq-letter {
  font-weight: 700;
  color: var(--text);
  min-width: 1.2em;
}

.mcq-text {
  color: var(--text);
}

/* Completion */
.completion-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.completion-item {
  line-height: 1.7;
  text-align: left;
}

.blank-input {
  display: inline-block;
  vertical-align: baseline;
  width: 6.5em;
  min-width: 5.5em;
  max-width: 10em;
  height: 1.85em;
  margin: 0 3px;
  padding: 2px 6px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: #fff;
  font: inherit;
  font-size: 0.95em;
  color: var(--text);
  text-align: center;
  line-height: 1.4;
}

.blank-input::placeholder {
  color: #c5cdd4;
  font-size: 1.15em;
  font-weight: 600;
  opacity: 1;
  text-align: center;
}

.blank-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.blank-select,
.heading-select {
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 4px 8px;
  font: inherit;
  max-width: 100%;
  background: #fff;
}

.feature-options {
  background: #f8faf9;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 12px;
}

.feature-options-title {
  font-weight: 700;
  margin-bottom: 6px;
}

.feature-opt {
  font-size: 13px;
  margin: 4px 0;
}

.headings-box {
  background: #f8faf9;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 14px;
}

.headings-box-title {
  font-weight: 700;
  margin-bottom: 8px;
  text-align: left;
}

.heading-row {
  margin: 4px 0;
  font-size: 13px;
}

.heading-rom {
  display: inline-block;
  min-width: 2em;
  font-weight: 700;
  color: var(--accent);
}

.headings-slots {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.heading-slot {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
}

.heading-para {
  font-weight: 600;
}

/* —— Footer —— */
.footer {
  height: var(--footer-h);
  background: var(--panel);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  gap: 12px;
  flex-shrink: 0;
  box-shadow: 0 -1px 3px rgba(44, 62, 80, 0.04);
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 120px;
  flex-shrink: 0;
}

.score-badge {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 4px 10px;
  display: none;
}

.score-badge.visible {
  display: inline-block;
}

.answer-note {
  font-size: 12px;
  color: var(--muted);
}

.footer-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* Progress dots in footer */
.progress-dots {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  align-items: center;
  justify-content: center;
  flex: 1;
  max-height: 48px;
  overflow: auto;
  min-width: 0;
}

.progress-dots .dot {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1.5px solid #c5cdd4;
  background: transparent;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  font-family: inherit;
}

.progress-dots .dot:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Answered (before check): solid teal fill + white number */
.progress-dots .dot.filled {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.progress-dots .dot.correct {
  background: var(--correct);
  border-color: var(--correct);
  color: #fff;
}

.progress-dots .dot.wrong {
  background: var(--wrong);
  border-color: var(--wrong);
  color: #fff;
}

.progress-dots .dot.unanswered {
  background: #eef1f4;
  border-color: #b0b8c0;
  color: #5a6577;
}

.btn {
  border: none;
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border-strong);
}

.btn-secondary:hover {
  background: #eef2f4;
}

.btn-secondary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-strong);
  padding: 6px 12px;
  font-size: 12.5px;
}

.btn-ghost:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

/* Font size variants */
body.font-s {
  --font-size: 15px;
  --passage-font: 15px;
}

body.font-m {
  --font-size: 17px;
  --passage-font: 17px;
}

body.font-l {
  --font-size: 19px;
  --passage-font: 19px;
}

/* Scrollbar */
.panel::-webkit-scrollbar,
.sidebar-list::-webkit-scrollbar {
  width: 8px;
}

.panel::-webkit-scrollbar-thumb,
.sidebar-list::-webkit-scrollbar-thumb {
  background: #c8d0d6;
  border-radius: 4px;
}

.panel::-webkit-scrollbar-track,
.sidebar-list::-webkit-scrollbar-track {
  background: transparent;
}

/* Scoring notes */
.ref-answer { display: none !important; }

/* ref answers only via .q-feedback after submit */

.multi-feedback {
  margin-top: 8px;
  font-size: 13px;
  color: var(--muted);
  text-align: left;
}


/* —— Context menu (passage highlight) —— */
.hl-menu {
  position: fixed;
  z-index: 1000;
  min-width: 140px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 6px 20px rgba(44, 62, 80, 0.14);
  padding: 6px 0;
  display: flex;
  flex-direction: column;
}

.hl-menu[hidden] {
  display: none !important;
}

.hl-menu button {
  appearance: none;
  border: none;
  background: transparent;
  text-align: left;
  padding: 10px 16px;
  font: inherit;
  font-size: 14px;
  color: var(--text);
  cursor: pointer;
  width: 100%;
}

.hl-menu button:hover:not(:disabled) {
  background: var(--accent-soft);
  color: var(--accent);
}

.hl-menu button:disabled {
  color: #c0c6ce;
  cursor: default;
}

/* —— Inline notes / completion —— */
.notes-block {
  white-space: pre-wrap;
  line-height: 1.75;
  font-size: 0.98em;
  color: var(--text);
  text-align: left;
}

span.blank-wrap {
  display: inline-flex;
  flex-direction: column;
  align-items: stretch;
  vertical-align: middle;
  position: relative;
  max-width: 14em;
  margin: 0 3px;
}
span.blank-wrap > .blank-input,
span.blank-wrap > .blank-select {
  margin-left: 0;
  margin-right: 0;
  width: 6.5em;
  max-width: 100%;
  box-sizing: border-box;
}
span.blank-wrap.result-correct .blank-input,
span.blank-wrap.result-correct .blank-select {
  border-color: var(--correct);
  background: var(--correct-bg);
  outline: none;
}
span.blank-wrap.result-wrong .blank-input,
span.blank-wrap.result-wrong .blank-select {
  border-color: var(--wrong);
  background: var(--wrong-bg);
  outline: none;
}
span.blank-wrap.result-unanswered .blank-input,
span.blank-wrap.result-unanswered .blank-select {
  border-style: dashed;
  border-color: #b0b8c0;
}


.completion-list.notes-lines {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.completion-list.notes-lines .notes-line {
  line-height: 1.75;
  text-align: left;
  color: var(--text);
}

/* Nested note lines (en-dash / hyphen under a bullet) */
.completion-list.notes-lines .notes-line.nested {
  padding-left: 1.4em;
}

.completion-list.notes-lines .notes-line.notes-spacer {
  line-height: 0.6;
  height: 0.4em;
  overflow: hidden;
}


.completion-list.notes-lines .notes-line .q-no {
  display: none;
}

.blank-select {
  display: inline-block;
  vertical-align: baseline;
  min-width: 4.5em;
  margin: 0 3px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 4px 6px;
  font: inherit;
  background: #fff;
  text-align: center;
}

.q-group[data-type="note_completion"] .q-group-header,
.q-group[data-type="summary_completion"] .q-group-header,
.q-group[data-type="summary_completion_list"] .q-group-header,
.q-group[data-type="flowchart_completion"] .q-group-header,
.q-group[data-type="table_completion"] .q-group-header,
.q-group[data-type="sentence_completion"] .q-group-header,
.q-group[data-type="short_answer"] .q-group-header,
.q-group[data-type="diagram_completion"] .q-group-header {
  background: transparent;
  border: none;
  padding: 0 0 8px;
}

.passage-toolbar { display: none; }


/* —— Post-submit feedback —— */
.q-feedback {
  display: none;
  margin-top: 6px;
  padding: 6px 8px;
  border-radius: 6px;
  font-size: 12px;
  line-height: 1.45;
  text-align: left;
  background: #f4f7f6;
  border: 1px solid var(--border);
}
.q-feedback.visible { display: block; }
.blank-wrap > .q-feedback {
  margin-top: 6px;
  margin-left: 0;
  align-self: flex-start;
  width: auto;
  min-width: 100%;
  max-width: none;
  box-sizing: border-box;
  white-space: normal;
  border-radius: 6px;
}
.tfng-item > .q-feedback,
.mcq-item > .q-feedback,
.heading-slot > .q-feedback,
.completion-item:not(.blank-wrap) > .q-feedback,
td.col-info > .q-feedback {
  margin-left: calc(2.25em + 10px);
}
.q-feedback .fb-sep {
  margin: 0 6px;
  color: var(--muted);
}
.q-feedback.fb-ok {
  background: var(--correct-bg);
  border-color: #b7e0c5;
  color: var(--correct);
}
.q-feedback.fb-bad {
  background: var(--wrong-bg);
  border-color: #f0c2c0;
  color: var(--wrong);
}
.q-feedback.fb-miss {
  background: #f4f5f7;
  border-color: #d0d5dc;
  color: var(--muted);
}
.q-feedback .fb-verdict {
  font-weight: 700;
}
.tfng-item.result-wrong,
.mcq-item.result-wrong {
  /* keep light red wash from earlier rules */
}
.tfng-item.result-wrong .stem-text,
.mcq-item.result-wrong .stem-text {
  color: var(--wrong);
}


.student-meta input {
  width: 88px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 5px 8px;
  font: inherit;
  font-size: 12px;
  background: #fff;
  color: #000;
}
.student-meta input::placeholder { color: #a0a8b0; }
@media (max-width: 1100px) {
  .student-meta input { width: 72px; }
}