:root {
  --category-blue: #4e72ff;
  --category-blue-dark: #2848c7;
  --category-blue-pale: #f2f5ff;
  --category-coral: #fe6468;
  --category-green: #33c480;
  --category-surface: #ffffff;
  --category-ink: #101a38;
  --category-muted: #65718c;
  --category-border: #dce3f2;
}

#category-view {
  max-width: 1440px;
  margin: 0 auto;
}

.category-hero {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  align-items: flex-end;
  padding: 10px 2px 26px;
}

.category-hero h1 {
  margin: 6px 0 8px;
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1;
  letter-spacing: -0.055em;
}

.category-hero p,
.category-builder-heading p {
  max-width: 760px;
  margin: 0;
  color: var(--category-muted);
  font-size: 1rem;
  line-height: 1.55;
}

.category-review-label {
  display: grid;
  gap: 2px;
  min-width: 238px;
  padding: 12px 14px;
  border: 1px solid #ccd6f8;
  border-radius: 14px;
  background: var(--category-blue-pale);
  color: var(--category-blue-dark);
  font-size: .8rem;
}

.category-review-label span { color: var(--category-muted); }

.category-layout {
  display: grid;
  grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.category-list-card,
.category-builder-card,
.category-quiz-card,
.category-results {
  border: 1px solid var(--category-border);
  border-radius: 22px;
  background: var(--category-surface);
  box-shadow: 0 12px 34px rgba(37, 55, 106, .06);
}

.category-list-card {
  padding: 18px;
  position: sticky;
  top: 18px;
}

.category-list-heading h2,
.category-builder-heading h2,
.category-results-hero h2 {
  margin: 5px 0 8px;
  font-size: clamp(1.35rem, 2.2vw, 2rem);
  line-height: 1.08;
  letter-spacing: -.035em;
}

.category-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.category-choice {
  width: 100%;
  min-height: 62px;
  display: grid;
  grid-template-columns: 38px 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 10px;
  text-align: left;
  border: 1px solid #b8c7ff;
  border-radius: 14px;
  background: var(--category-blue-pale);
  color: var(--category-ink);
}

.category-choice-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: var(--category-blue);
  color: #fff;
  font-weight: 800;
}

.category-choice-copy { display: grid; gap: 2px; }
.category-choice-copy small { color: var(--category-muted); }
.category-choice-count { color: var(--category-blue-dark); font-weight: 800; }

.coming-soon-tray {
  margin-top: 16px;
  border-top: 1px solid var(--category-border);
  padding-top: 14px;
}

.coming-soon-tray summary {
  min-height: 44px;
  display: flex;
  align-items: center;
  cursor: pointer;
  color: var(--category-blue-dark);
  font-weight: 750;
}

.coming-soon-list { display: grid; gap: 6px; padding-top: 6px; }
.coming-soon-item {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 9px 10px;
  border-radius: 10px;
  background: #f7f8fb;
  color: var(--category-muted);
  font-size: .78rem;
}

.coming-soon-item strong { color: #38435d; font-size: .82rem; }

.category-builder-card { padding: 24px; }
.category-builder-heading,
.category-start-row,
.category-results-hero,
.category-quiz-topline,
.category-quiz-status {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}

.category-count {
  flex: 0 0 auto;
  display: grid;
  justify-items: end;
  color: var(--category-muted);
  font-size: .8rem;
}

.category-count strong {
  color: var(--category-blue-dark);
  font-size: 2rem;
  line-height: 1;
}

.category-progress {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 20px 0;
  overflow: hidden;
  border: 1px solid var(--category-border);
  border-radius: 14px;
  background: var(--category-border);
}

.category-progress-stat {
  min-height: 68px;
  display: grid;
  align-content: center;
  gap: 2px;
  padding: 11px 14px;
  background: #fafbfe;
}

.category-progress-stat strong { font-size: 1.18rem; }
.category-progress-stat span { color: var(--category-muted); font-size: .78rem; }
.category-next-focus {
  margin: -8px 0 20px;
  padding: 11px 13px;
  border-left: 3px solid var(--category-blue);
  background: var(--category-blue-pale);
  color: #3f4d6c;
  font-size: .82rem;
}

.category-filter-tray {
  border: 1px solid var(--category-border);
  border-radius: 18px;
  overflow: hidden;
}

.category-filter-section {
  padding: 18px;
  border-bottom: 1px solid var(--category-border);
}

.category-filter-section:last-child { border-bottom: 0; }
.category-filter-heading { display: flex; justify-content: space-between; gap: 18px; align-items: center; margin-bottom: 10px; }
.category-filter-heading p { margin: 2px 0 0; color: var(--category-muted); font-size: .8rem; }
.category-filter-heading .link-button { min-height: 44px; }

.category-mode-rail,
.category-decision-rail {
  width: 100%;
  grid-template-columns: repeat(var(--segment-count, 2), minmax(0, 1fr));
}

.category-mode-rail { --segment-count: 2; }
.category-decision-rail { --segment-count: 4; }
.category-mode-rail button,
.category-decision-rail button { min-height: 46px; }

.filter-help { margin: 8px 2px 0; color: var(--category-muted); font-size: .8rem; }

.stable-filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.stable-filter-chip {
  min-height: 44px;
  padding: 9px 12px;
  border: 1px solid var(--category-border);
  border-radius: 999px;
  background: #fff;
  color: #33405e;
  font: inherit;
  font-size: .82rem;
  font-weight: 700;
  white-space: nowrap;
}

.stable-filter-chip span { display: inline-block; min-width: 1.5ch; margin-left: 5px; color: var(--category-muted); }
.stable-filter-chip[aria-pressed="true"] { border-color: var(--category-blue); background: var(--category-blue-pale); color: var(--category-blue-dark); box-shadow: inset 0 0 0 1px var(--category-blue); }
.stable-filter-chip:disabled { opacity: .42; cursor: not-allowed; }

.category-filter-row { display: grid; grid-template-columns: 1fr 1fr; }
.category-filter-row .category-filter-section:first-child { border-right: 1px solid var(--category-border); }
.category-filter-section.compact .field-label { display: block; margin-bottom: 10px; }

.category-start-row {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 14px;
  background: var(--category-blue-pale);
}

.category-start-row > div:first-child { display: grid; gap: 3px; }
.category-start-row span { color: var(--category-muted); font-size: .78rem; }
.category-start-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.category-start-actions button { min-height: 46px; }

.category-quiz-card,
.category-results { max-width: 980px; margin: 0 auto; padding: clamp(18px, 4vw, 36px); }
.category-quiz-topline { margin-bottom: 18px; }
.category-quiz-status { padding: 13px 15px; margin-bottom: 14px; border-radius: 14px; background: var(--category-blue-pale); }
.category-quiz-status > div { display: grid; gap: 2px; }
.category-live-score { color: var(--category-blue-dark); font-weight: 800; }
.category-question-tags { display: flex; flex-wrap: wrap; gap: 7px; margin: 22px 0 8px; }
.category-question-tag { padding: 5px 9px; border-radius: 999px; background: #f0f2f8; color: #52607d; font-size: .72rem; font-weight: 750; }
#category-question-title { margin-top: 12px; }
.category-distractor-note { margin: 12px 0; padding: 12px 14px; border-radius: 12px; background: #f7f8fb; color: #495570; }
.category-test-note { margin: 14px 0 0; padding: 13px 15px; border-left: 3px solid var(--category-blue); background: var(--category-blue-pale); color: #3a4767; }

.category-results-hero { padding-bottom: 20px; border-bottom: 1px solid var(--category-border); }
.category-results-recommendation { margin-top: 10px; color: var(--category-blue-dark); font-weight: 800; }
.category-result-score { display: grid; justify-items: end; color: var(--category-muted); }
.category-result-score strong { font-size: 2.4rem; line-height: 1; color: var(--category-blue-dark); }
.category-performance-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin: 20px 0; }
.category-performance-card { padding: 15px; border: 1px solid var(--category-border); border-radius: 14px; }
.category-performance-card h3 { margin: 0 0 10px; font-size: 1rem; }
.category-performance-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; padding: 7px 0; border-top: 1px solid #edf0f7; color: var(--category-muted); font-size: .8rem; }
.category-performance-row strong { color: var(--category-ink); }
.category-results-actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 18px 0 24px; }
.category-review-list { display: grid; gap: 12px; }
.category-review-item { border: 1px solid var(--category-border); border-radius: 16px; overflow: hidden; }
.category-review-item summary { min-height: 54px; display: grid; grid-template-columns: 34px 1fr auto; gap: 10px; align-items: center; padding: 12px 14px; cursor: pointer; list-style: none; }
.category-review-item summary::-webkit-details-marker { display: none; }
.category-review-number { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 9px; background: #edf1ff; color: var(--category-blue-dark); font-weight: 800; }
.category-review-state { font-size: .75rem; font-weight: 800; }
.category-review-state.correct { color: #15744b; }
.category-review-state.wrong { color: #b4353a; }
.category-review-body { padding: 0 16px 16px 58px; color: #44506c; }
.category-review-body p { line-height: 1.55; }
.category-source-list { margin: 8px 0 0; padding-left: 18px; }
.category-source-list a { color: var(--category-blue-dark); }

@media (max-width: 980px) {
  .category-layout { grid-template-columns: 1fr; }
  .category-list-card { position: static; }
  .category-list-card .category-list-heading,
  .category-list-card .category-list { display: none; }
  .coming-soon-tray { margin-top: 0; padding-top: 0; border-top: 0; }
}

@media (max-width: 720px) {
  .category-hero,
  .category-builder-heading,
  .category-start-row,
  .category-results-hero,
  .category-quiz-topline { align-items: flex-start; flex-direction: column; }
  .category-review-label { width: 100%; min-width: 0; }
  .category-builder-card { padding: 16px; }
  .category-count { justify-items: start; }
  .category-filter-row { grid-template-columns: 1fr; }
  .category-filter-row .category-filter-section:first-child { border-right: 0; }
  .category-decision-rail { --segment-count: 2; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .category-start-actions { width: 100%; justify-content: stretch; }
  .category-start-actions button { flex: 1 1 180px; }
  .category-performance-grid { grid-template-columns: 1fr; }
  .category-review-body { padding-left: 16px; }
}

@media (max-width: 460px) {
  .category-progress { grid-template-columns: 1fr; }
  .stable-filter-chip { flex: 1 1 calc(50% - 8px); white-space: normal; }
  .category-mode-rail { grid-template-columns: 1fr 1fr; }
  .category-review-item summary { grid-template-columns: 32px 1fr; }
  .category-review-state { grid-column: 2; }
}