/* ==========================================================================
   QT Trading Lab — course pages: module overview, lesson, quiz, drills, notes.
   Markup comes from assets/js/course-app.js. Requires qt-tokens.css,
   qt-components.css, qt-shell.css and qt-slideshow.css.
   ========================================================================== */

.course-view {
  display: flex;
  flex-direction: column;
  gap: 26px;
  max-width: 1240px;
  padding: 32px 44px 72px;
}

body[data-route="lesson"] .course-view {
  padding-top: 0;
}

#courseHeader:empty {
  display: none;
}

/* ---- Module header ---- */
.cv-head {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.cv-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--color-text-faint);
}

.cv-crumbs a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.cv-crumbs a:hover {
  color: var(--color-accent-300);
}

.cv-head-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.cv-title {
  max-width: 30ch;
  margin: 0;
  font-size: clamp(26px, 3.2vw, 34px);
  font-weight: var(--font-heading-weight);
  line-height: 1.12;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.cv-pager {
  display: flex;
  flex: none;
  align-items: center;
  gap: 6px;
}

.cv-pager-btn {
  width: 38px;
  padding: 0;
}

.cv-jump select {
  min-height: 38px;
  padding: 0 32px 0 12px;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  background-color: var(--glass-fill);
  background-image:
    linear-gradient(45deg, transparent 50%, var(--color-text-muted) 50%),
    linear-gradient(135deg, var(--color-text-muted) 50%, transparent 50%);
  background-position: calc(100% - 17px) 16px, calc(100% - 12px) 16px;
  background-size: 5px 5px;
  background-repeat: no-repeat;
  color: var(--color-text);
  font: 12.5px var(--font-mono);
  appearance: none;
  cursor: pointer;
}

.cv-jump select:hover {
  border-color: var(--color-divider-strong);
}

.cv-tabs {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  background: linear-gradient(to right, transparent, var(--color-divider) 48px, var(--color-divider) calc(100% - 48px), transparent) no-repeat bottom / 100% 1px;
}

.cv-tab {
  position: relative;
  padding: 10px 12px;
  color: var(--color-text-muted);
  font-size: 13.5px;
  text-decoration: none;
  white-space: nowrap;
}

.cv-tab:hover {
  color: var(--color-text);
}

.cv-tab[aria-current="page"] {
  color: var(--color-text);
}

.cv-tab[aria-current="page"]::after {
  content: "";
  position: absolute;
  right: 12px;
  bottom: 0;
  left: 12px;
  height: 2px;
  border-radius: 2px 2px 0 0;
  background: var(--color-accent);
}

/* ---- Module overview ---- */
.cv-module {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.cv-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 32px;
}

.cv-intro-copy {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 70ch;
}

.cv-intro-copy p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--color-text-muted);
  text-wrap: pretty;
}

.cv-intro-copy p:first-child {
  font-size: 15px;
  color: var(--color-text);
}

.cv-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.cv-intro-ring {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  color: var(--color-text-faint);
}

.cv-module-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  align-items: start;
  gap: 22px;
}

.cv-module-main {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.cv-lessons {
  display: flex;
  flex-direction: column;
  gap: 1px;
  margin: 0;
  padding: 0;
  overflow: hidden;
  list-style: none;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  background: var(--color-divider);
}

.cv-lesson-row {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) auto 18px;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: var(--color-surface);
  color: inherit;
  text-decoration: none;
  transition: background-color 0.15s ease;
}

.cv-lesson-row:hover {
  background: var(--color-raised);
}

.cv-lesson-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-faint);
  font-variant-numeric: tabular-nums;
}

.cv-lesson-name {
  font-size: 14.5px;
  line-height: 1.35;
  color: var(--color-text);
}

.cv-lesson-status {
  font-family: var(--font-mono);
  font-size: 11px;
  white-space: nowrap;
  color: var(--color-text-faint);
  font-variant-numeric: tabular-nums;
}

.cv-lesson-mark {
  display: grid;
  width: 18px;
  height: 18px;
  place-items: center;
  border: 1px solid var(--color-neutral-700);
  border-radius: 50%;
}

.cv-lesson-mark svg {
  width: 11px;
  height: 11px;
}

.cv-lesson-row.is-done .cv-lesson-name {
  color: var(--color-text-muted);
}

.cv-lesson-row.is-done .cv-lesson-mark {
  border-color: var(--color-accent-600);
  background: color-mix(in srgb, var(--color-accent) 30%, transparent);
  color: var(--color-accent-100);
}

.cv-lesson-row.is-current {
  background: linear-gradient(90deg, color-mix(in srgb, var(--color-accent) 14%, var(--color-surface)), var(--color-surface));
  box-shadow: inset 2px 0 0 var(--color-accent);
}

.cv-lesson-row.is-current .cv-lesson-num,
.cv-lesson-row.is-current .cv-lesson-status {
  color: var(--color-accent-300);
}

.cv-lesson-row.is-current .cv-lesson-mark {
  border-color: transparent;
  color: var(--color-accent);
}

.cv-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 4px;
}

.cv-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  padding: 16px;
}

.cv-card h3 {
  margin: 0;
  font-size: 16px;
  font-weight: var(--font-heading-weight);
  line-height: 1.3;
}

.cv-card-meta {
  margin: 0 0 6px;
  font-size: 12.5px;
  color: var(--color-text-muted);
}

.cv-module-aside,
.cv-lesson-aside {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.cv-side {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px 18px;
  scroll-margin-top: 76px;
}

.cv-list {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.cv-list li {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr);
  gap: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--color-text-muted);
}

.cv-list li::before {
  content: "";
  width: 6px;
  height: 1px;
  margin-top: 0.75em;
  background: var(--color-accent);
}

.cv-terms {
  display: flex;
  flex-direction: column;
  gap: 11px;
  margin: 0;
}

.cv-terms dt {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-accent-300);
}

.cv-terms dt a {
  color: inherit;
  text-decoration: none;
}

.cv-terms dt a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.cv-terms dd {
  margin: 2px 0 0;
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--color-text-muted);
}

.cv-side-link {
  font-size: 12.5px;
  color: var(--color-accent-300);
  text-decoration: none;
}

.cv-side-link:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---- Lesson ---- */
.cv-lesson {
  display: flex;
  flex-direction: column;
}

.cv-lesson-bar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 0 -44px;
  padding: 12px 44px;
  border-bottom: 1px solid var(--color-divider);
  background: var(--glass-fill-bar);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
}

.cv-lesson-bar-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  font-size: 13px;
  white-space: nowrap;
  text-overflow: ellipsis;
  color: var(--color-text-muted);
}

.cv-segs {
  display: flex;
  flex: none;
  gap: 4px;
}

.cv-seg {
  width: 22px;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--color-accent) var(--fill, 0%), var(--color-neutral-800) var(--fill, 0%));
}

.cv-seg.is-current {
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--color-accent) 45%, transparent);
}

.cv-complete.is-done {
  border-color: var(--color-accent);
  color: var(--color-accent-300);
}

/* Played when the last slide marks the lesson complete */
.cv-complete.is-flash {
  animation: cv-complete-flash 1.2s ease-out;
}

@keyframes cv-complete-flash {
  from {
    background: color-mix(in srgb, var(--color-accent) 24%, transparent);
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--color-accent) 55%, transparent);
  }
  to {
    background: transparent;
    box-shadow: 0 0 0 10px color-mix(in srgb, var(--color-accent) 0%, transparent);
  }
}

/* Eyebrow, title and player span the full content width; slides need the room. */
.cv-lesson-hero {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding-top: 28px;
}

.cv-lesson-hero .cv-media {
  margin-top: 4px;
}

.cv-lesson-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  align-items: start;
  gap: 28px;
  padding-top: 28px;
}

.cv-lesson-main {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}

.cv-lesson-title {
  max-width: 26ch;
  margin: -6px 0 0;
  font-size: clamp(26px, 3vw, 32px);
  font-weight: var(--font-heading-weight);
  line-height: 1.12;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.cv-media .qt-player-wrap {
  width: 100%;
  max-height: none;
}

.cv-media .qt-slide-area {
  max-height: none;
}

.cv-media .qt-player-label {
  display: none;
}

.cv-media .qt-player {
  box-shadow: var(--shadow-md);
}

.cv-outline ol {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 8px 0 0;
  padding-left: 22px;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--color-text-muted);
}

.cv-outline li::marker {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--color-text-faint);
}

.cv-prose {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 70ch;
}

.cv-prose p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: color-mix(in srgb, var(--color-text) 86%, transparent);
  text-wrap: pretty;
}

.cv-lesson-pager {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 22px;
  background: linear-gradient(to right, transparent, var(--color-divider) 48px, var(--color-divider) calc(100% - 48px), transparent) no-repeat top / 100% 1px;
}

.cv-lesson-pager .qt-btn {
  min-width: 0;
  max-width: 100%;
}

.cv-lesson-pager .qt-btn span {
  max-width: 34ch;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.cv-lesson-pager .qt-btn--primary {
  margin-left: auto;
}

.cv-lesson-aside {
  position: sticky;
  top: 80px;
}

.cv-side-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.cv-saved {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-faint);
}

.cv-notes {
  width: 100%;
  min-height: 120px;
  padding: 10px 12px;
  resize: vertical;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-sunken) 70%, transparent);
  color: var(--color-text);
  font: 13.5px/1.55 var(--font-body);
  caret-color: var(--color-accent);
}

.cv-notes:hover {
  border-color: var(--color-divider-strong);
}

.cv-notes:focus-visible {
  border-color: var(--color-accent);
  outline: none;
}

.cv-stamp {
  align-self: flex-start;
}

.cv-checks {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cv-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--color-text-muted);
  cursor: pointer;
}

.cv-check input {
  flex: none;
  width: 16px;
  height: 16px;
  margin: 1px 0 0;
  accent-color: var(--color-accent);
}

.cv-actionbar {
  display: none;
}

/* ---- Diagram fallback (lessons without a slide deck) ---- */
.diagram-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  overflow: hidden;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  background: var(--glass-fill);
}

.diagram-art {
  padding: 14px;
  border-right: 1px solid var(--color-divider);
  background: var(--color-sunken);
}

.diagram-art svg {
  display: block;
  width: 100%;
  height: 200px;
}

.diagram-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 20px;
}

.diagram-kicker {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-300);
}

.diagram-title {
  font-size: 17px;
  font-weight: var(--font-heading-weight);
}

.diagram-caption {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-muted);
}

.diagram-marks {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.diagram-mark {
  padding: 6px 10px;
  border: 1px solid var(--color-divider);
  border-radius: 6px;
  background: var(--color-raised);
  font-size: 12px;
  color: var(--color-text-muted);
}

/* ---- Quiz, drills and notes ---- */
.quiz-wrap,
.drills-wrap,
.notes-wrap {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 880px;
}

.quiz-header {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.hero-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-300);
}

.hero-title {
  margin: 0;
  font-weight: var(--font-heading-weight);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.quiz-score-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  padding: 16px 20px;
  border: 1px solid color-mix(in srgb, var(--pl-pos) 32%, transparent);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--pl-pos) 7%, transparent);
}

.quiz-score-banner.not-passed {
  border-color: color-mix(in srgb, var(--pl-warn) 32%, transparent);
  background: color-mix(in srgb, var(--pl-warn) 7%, transparent);
}

.quiz-score-num {
  font-size: 34px;
  font-weight: var(--font-heading-weight);
  line-height: 1;
  color: var(--pl-pos);
  font-variant-numeric: tabular-nums;
}

.quiz-score-copy {
  flex: 1;
  min-width: 200px;
}

.quiz-score-status {
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--pl-pos);
}

.quiz-score-banner.not-passed .quiz-score-num,
.quiz-score-banner.not-passed .quiz-score-status {
  color: var(--pl-warn);
}

.quiz-score-msg {
  font-size: 13.5px;
  color: var(--color-text-muted);
}

.quiz-retake {
  flex-shrink: 0;
}

.quiz-pass-note {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--color-text-faint);
}

.quiz-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.quiz-card {
  padding: 18px 20px;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  background: var(--glass-fill);
}

.quiz-q {
  margin-bottom: 12px;
  font-size: 15px;
  font-weight: var(--font-heading-weight);
  line-height: 1.45;
}

.quiz-choice {
  display: block;
  width: 100%;
  margin-bottom: 6px;
  padding: 10px 14px;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-raised) 70%, transparent);
  color: var(--color-text-muted);
  font: 14px/1.45 var(--font-body);
  text-align: left;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.quiz-choice:last-child {
  margin-bottom: 0;
}

.quiz-choice:hover {
  border-color: var(--color-divider-strong);
  color: var(--color-text);
}

.quiz-choice.correct {
  border-color: color-mix(in srgb, var(--pl-pos) 60%, transparent);
  background: color-mix(in srgb, var(--pl-pos) 10%, transparent);
  color: var(--pl-pos);
}

.quiz-choice.wrong {
  border-color: color-mix(in srgb, var(--pl-neg) 60%, transparent);
  background: color-mix(in srgb, var(--pl-neg) 10%, transparent);
  color: var(--pl-neg);
}

.quiz-choice:disabled {
  cursor: default;
}

.quiz-choice:disabled:not(.correct):not(.wrong) {
  opacity: 0.55;
}

.quiz-choice:disabled:not(.correct):not(.wrong):hover {
  border-color: var(--color-divider);
  color: var(--color-text-muted);
}

.drills-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.drill-panel {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  background: var(--glass-fill);
}

.drill-panel.wide {
  grid-column: 1 / -1;
}

.toolkit-section-title {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.check-item-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 9px 0;
  background: linear-gradient(to right, transparent, color-mix(in srgb, var(--color-text) 8%, transparent) 48px, color-mix(in srgb, var(--color-text) 8%, transparent) calc(100% - 48px), transparent) no-repeat bottom / 100% 1px;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--color-text-muted);
}

.check-item-row:last-child {
  background: none;
}

.check-item-row input {
  flex: none;
  width: 16px;
  height: 16px;
  margin-top: 2px;
  accent-color: var(--color-accent);
}

.drill-mini-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.drill-mini {
  padding: 10px 12px;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-raised) 60%, transparent);
}

.drill-mini strong {
  display: block;
  margin-bottom: 3px;
  font-size: 13px;
  font-weight: var(--font-heading-weight);
  color: var(--color-text);
}

.drill-mini span {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--color-text-muted);
}

.brief-area,
.note-area {
  width: 100%;
  padding: 12px 14px;
  resize: vertical;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-sunken) 70%, transparent);
  color: var(--color-text);
  font: 14px/1.65 var(--font-body);
  caret-color: var(--color-accent);
}

.brief-area {
  min-height: 140px;
  margin: 10px 0;
}

.note-area {
  min-height: 360px;
  margin: 14px 0;
}

.brief-area:focus-visible,
.note-area:focus-visible {
  border-color: var(--color-accent);
  outline: none;
}

.note-panel {
  max-width: 760px;
  padding: 22px 24px;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  background: var(--glass-fill);
}

.note-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

/* Legacy buttons emitted by the quiz, drill and notes renderers */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 8px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  background: transparent;
  font: 500 14px/1.2 var(--font-body);
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.btn-primary {
  border-color: var(--color-accent);
  color: var(--color-accent-300);
}

.btn-primary:hover {
  background: color-mix(in srgb, var(--color-accent) 12%, transparent);
}

.btn-secondary {
  border-color: var(--color-divider);
  color: var(--color-text);
}

.btn-secondary:hover {
  background: color-mix(in srgb, var(--color-text) 7%, transparent);
}

/* ---- Responsive ---- */
@media (max-width: 1279px) {
  .cv-lesson-grid {
    grid-template-columns: minmax(0, 1fr) 280px;
  }
}

@media (max-width: 1099px) {
  .cv-module-grid,
  .cv-lesson-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .cv-lesson-aside {
    position: static;
  }

  .cv-segs {
    display: none;
  }
}

@media (max-width: 1023px) {
  .course-view {
    padding: 28px 32px 60px;
  }

  .cv-lesson-bar {
    margin: 0 -32px;
    padding: 12px 32px;
  }
}

@media (max-width: 767px) {
  .course-view {
    gap: 20px;
    padding: 20px 18px 40px;
  }

  .cv-head-row {
    flex-direction: column;
    gap: 12px;
  }

  .cv-intro {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }

  .cv-intro-ring {
    flex-direction: row;
    align-self: flex-start;
    gap: 12px;
  }

  .cv-intro-ring .qt-ring {
    width: 64px;
    height: 64px;
  }

  .cv-cards,
  .drills-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .cv-lesson-row {
    grid-template-columns: 34px minmax(0, 1fr) 18px;
    row-gap: 3px;
  }

  .cv-lesson-num {
    grid-row: 1 / span 2;
  }

  .cv-lesson-name {
    grid-column: 2;
    grid-row: 1;
  }

  .cv-lesson-status {
    grid-column: 2;
    grid-row: 2;
  }

  .cv-lesson-mark {
    grid-column: 3;
    grid-row: 1 / span 2;
  }

  .cv-lesson-bar {
    gap: 10px;
    margin: 0 -18px;
    padding: 10px 18px;
  }

  /* The heading below repeats the lesson title, so the bar keeps just back + complete */
  .cv-lesson-bar-title {
    display: none;
  }

  .cv-complete {
    margin-left: auto;
  }

  .cv-lesson-pager .qt-btn {
    width: 100%;
  }

  .cv-lesson-pager .qt-btn--primary {
    margin-left: 0;
  }

  .cv-lesson-pager .qt-btn span {
    max-width: none;
  }

  body[data-route="lesson"] .qt-mobilebar,
  body[data-route="lesson"] .qt-tabbar {
    display: none;
  }

  body[data-route="lesson"] .qt-main {
    padding-bottom: calc(76px + env(safe-area-inset-bottom));
  }

  .cv-actionbar {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 40;
    display: flex;
    gap: 8px;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
    border-top: 1px solid var(--color-divider);
    background: var(--glass-fill-bar);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
  }

  /* Notes and Terms take their own width; the complete / next button gets the rest */
  .cv-actionbar .qt-btn {
    flex: none;
    min-height: 44px;
    padding: 8px 14px;
  }

  .cv-actionbar .qt-btn--primary {
    flex: 1;
    min-width: 0;
  }

  .cv-actionbar .qt-btn span {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .diagram-card {
    grid-template-columns: 1fr;
  }

  .diagram-art {
    border-right: 0;
    border-bottom: 1px solid var(--color-divider);
  }
}

@media (prefers-reduced-motion: reduce) {
  .cv-complete.is-flash {
    animation: none;
  }

  .cv-lesson-row,
  .quiz-choice,
  .btn-primary,
  .btn-secondary {
    transition: none;
  }
}