/* Diffusion cluster practice page — quiz-first layout */

body.bio-unit1-review-page {
  background: var(--bg, #fbfcff);
  color: #1f2545;
}

body.bio-unit1-review-page .breadcrumb {
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 20px 0;
  font-size: 0.88rem;
  color: #4a5276;
}

body.bio-unit1-review-page .breadcrumb a {
  color: var(--nav-link, #3b5bdb);
  font-weight: 600;
  text-decoration: none;
}

body.bio-unit1-review-page .breadcrumb a:hover,
body.bio-unit1-review-page .breadcrumb a:focus-visible {
  text-decoration: underline;
}

body.bio-unit1-review-page #quick-answer .section-eyebrow {
  color: #f59e0b;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 8px;
}

body.bio-unit1-review-page #quick-answer h2 {
  color: #0a0f5a;
  font-size: clamp(1.25rem, 2.5vw, 1.55rem);
  margin: 0 0 12px;
}

body.bio-unit1-review-page #quick-answer .snippet-box {
  margin: 0 0 12px;
  padding: 14px 18px;
  border-left: 4px solid #f59e0b;
  background: #f8faff;
  border-radius: 0 12px 12px 0;
  font-size: 0.95rem;
  line-height: 1.58;
  color: #1f2545;
}

body.bio-unit1-review-page #quick-answer .snippet-box strong {
  color: #0a0f5a;
}

body.bio-unit1-review-page .bio-unit1-review-hero {
  background: linear-gradient(135deg, #0a0f5a 0%, #1c2580 55%, #2a35a3 100%);
  color: #fff;
  padding: 36px 20px 44px;
}

body.bio-unit1-review-page .bio-unit1-review-hero .hero-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 32px;
  align-items: center;
}

body.bio-unit1-review-page .hero-eyebrow {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--orange, #f59e0b);
  margin: 0 0 10px;
}

body.bio-unit1-review-page .bio-unit1-review-hero h1 {
  color: #fff;
  font-size: clamp(1.55rem, 3.5vw, 2.1rem);
  line-height: 1.15;
  margin: 0 0 14px;
}

body.bio-unit1-review-page .hero-lead {
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
  margin: 0 0 18px;
  max-width: 52ch;
}

body.bio-unit1-review-page .hero-meta {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.88rem;
  margin: 12px 0 0;
}

body.bio-unit1-review-page .hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Buttons: contrast-safe on hero (dark) and main (light) */

body.bio-unit1-review-page .btn {
  border-radius: 999px;
  padding: 12px 20px;
  font-size: 0.92rem;
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease,
    border-color 0.12s ease, color 0.12s ease;
}

body.bio-unit1-review-page .bio-unit1-review-hero .btn-primary {
  background: linear-gradient(135deg, #ffd37a 0%, #f59e0b 100%);
  color: #0a0f5a;
  border: 2px solid #f59e0b;
  box-shadow: 0 8px 22px rgba(245, 158, 11, 0.4);
}

body.bio-unit1-review-page .bio-unit1-review-hero .btn-primary:hover,
body.bio-unit1-review-page .bio-unit1-review-hero .btn-primary:focus-visible {
  background: linear-gradient(135deg, #ffe9a8 0%, #fbbf24 100%);
  color: #0a0f5a;
  border-color: #d97706;
}

body.bio-unit1-review-page .bio-unit1-review-hero .btn-light {
  background: #ffffff;
  color: #0a0f5a;
  border: 2px solid #ffffff;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}

body.bio-unit1-review-page .bio-unit1-review-hero .btn-light:hover,
body.bio-unit1-review-page .bio-unit1-review-hero .btn-light:focus-visible {
  background: #f0f6ff;
  color: #0a0f5a;
  border-color: #ffffff;
}

body.bio-unit1-review-page .main .btn-primary,
body.bio-unit1-review-page .bio-unit1-review-mobile-bar .btn-primary {
  background: linear-gradient(135deg, #ffd37a 0%, #f59e0b 100%);
  color: #0a0f5a;
  border: 2px solid #d97706;
  box-shadow: 0 6px 18px rgba(245, 158, 11, 0.32);
}

body.bio-unit1-review-page .main .btn-primary:hover,
body.bio-unit1-review-page .main .btn-primary:focus-visible,
body.bio-unit1-review-page .bio-unit1-review-mobile-bar .btn-primary:hover,
body.bio-unit1-review-page .bio-unit1-review-mobile-bar .btn-primary:focus-visible {
  background: linear-gradient(135deg, #ffe9a8 0%, #fbbf24 100%);
  color: #0a0f5a;
  border-color: #b45309;
}

body.bio-unit1-review-page .main .btn-blue,
body.bio-unit1-review-page .question-card .btn-blue {
  background: #0a0f5a;
  color: #ffffff;
  border: 2px solid #0a0f5a;
  box-shadow: 0 4px 14px rgba(10, 15, 90, 0.22);
}

body.bio-unit1-review-page .main .btn-blue:hover,
body.bio-unit1-review-page .main .btn-blue:focus-visible,
body.bio-unit1-review-page .question-card .btn-blue:hover,
body.bio-unit1-review-page .question-card .btn-blue:focus-visible {
  background: #1c2580;
  color: #ffffff;
  border-color: #1c2580;
}

body.bio-unit1-review-page .main .btn-ghost,
body.bio-unit1-review-page .result-box .btn-ghost,
body.bio-unit1-review-page .bio-unit1-review-mobile-bar .btn-ghost {
  background: #ffffff;
  color: #0a0f5a;
  border: 2px solid #0a0f5a;
  box-shadow: none;
}

body.bio-unit1-review-page .main .btn-ghost:hover,
body.bio-unit1-review-page .main .btn-ghost:focus-visible,
body.bio-unit1-review-page .result-box .btn-ghost:hover,
body.bio-unit1-review-page .result-box .btn-ghost:focus-visible,
body.bio-unit1-review-page .bio-unit1-review-mobile-bar .btn-ghost:hover,
body.bio-unit1-review-page .bio-unit1-review-mobile-bar .btn-ghost:focus-visible {
  background: #eff6ff;
  color: #0a0f5a;
  border-color: #1c2580;
}

body.bio-unit1-review-page .main .btn-light,
body.bio-unit1-review-page .result-box .btn-light,
body.bio-unit1-review-page .section-practice-focus .btn-light {
  background: #ffffff;
  color: #0a0f5a;
  border: 2px solid #0a0f5a;
  box-shadow: 0 2px 8px rgba(10, 15, 90, 0.08);
}

body.bio-unit1-review-page .main .btn-light:hover,
body.bio-unit1-review-page .main .btn-light:focus-visible,
body.bio-unit1-review-page .result-box .btn-light:hover,
body.bio-unit1-review-page .result-box .btn-light:focus-visible,
body.bio-unit1-review-page .section-practice-focus .btn-light:hover,
body.bio-unit1-review-page .section-practice-focus .btn-light:focus-visible {
  background: #f0f6ff;
  color: #0a0f5a;
  border-color: #1c2580;
}

body.bio-unit1-review-page .btn-primary:disabled,
body.bio-unit1-review-page .btn-blue:disabled,
body.bio-unit1-review-page #quizNext:disabled {
  background: #e2e8f0;
  color: #475569;
  border: 2px solid #cbd5e1;
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
  opacity: 1;
}

body.bio-unit1-review-page .hero-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 18px;
  padding: 22px 20px;
  text-align: center;
}

body.bio-unit1-review-page .score-ring-wrap {
  position: relative;
  width: 140px;
  height: 140px;
  margin: 0 auto 16px;
}

body.bio-unit1-review-page .score-ring {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

body.bio-unit1-review-page .score-ring-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.2);
  stroke-width: 10;
}

body.bio-unit1-review-page .score-ring-fill {
  fill: none;
  stroke: var(--orange, #f59e0b);
  stroke-width: 10;
  stroke-linecap: round;
  stroke-dasharray: 326.7;
  stroke-dashoffset: 326.7;
  transition: stroke-dashoffset 0.35s ease;
}

body.bio-unit1-review-page .score-ring-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
}

body.bio-unit1-review-page .score-ring-center strong {
  font-size: 1.65rem;
  line-height: 1;
}

body.bio-unit1-review-page .score-ring-center span {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.78);
  margin-top: 4px;
}

body.bio-unit1-review-page .hero-stat-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.88);
}

body.bio-unit1-review-page .hero-stat-list strong {
  color: #fff;
  font-weight: 800;
}

body.bio-unit1-review-page .layout {
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 20px 48px;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 32px;
  align-items: start;
}

body.bio-unit1-review-page .sidebar .panel {
  background: #fff;
  border: 1px solid var(--border, #e8ecf4);
  border-radius: 16px;
  padding: 16px 18px;
  margin-bottom: 16px;
}

body.bio-unit1-review-page .sidebar .panel h3 {
  margin: 0 0 12px;
  font-size: 0.95rem;
  color: var(--navy, #0a0f5a);
}

body.bio-unit1-review-page .sidebar {
  position: sticky;
  top: 100px;
}

body.bio-unit1-review-page .progress-track {
  height: 4px;
  background: #e8ecf4;
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 14px;
}

body.bio-unit1-review-page .progress-track .progress-bar {
  height: 100%;
  width: 0%;
  background: var(--orange, #f59e0b);
  border-radius: 999px;
  transition: width 0.25s ease;
}

body.bio-unit1-review-page .stat-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

body.bio-unit1-review-page .stat-list li {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid #eef1f6;
  font-size: 0.88rem;
  color: #4a5276;
}

body.bio-unit1-review-page .stat-list li:last-child {
  border-bottom: 0;
}

body.bio-unit1-review-page .stat-list strong {
  color: var(--navy, #0a0f5a);
}

body.bio-unit1-review-page .study-path {
  display: grid;
  gap: 8px;
}

body.bio-unit1-review-page .path-link {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 10px 10px;
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
  border: 1px solid transparent;
}

body.bio-unit1-review-page a.path-link:hover,
body.bio-unit1-review-page a.path-link:focus-visible {
  border-color: #c7d2fe;
  background: #f8faff;
}

body.bio-unit1-review-page .path-link.is-here {
  border-color: #fed7aa;
  background: #fff7ed;
}

body.bio-unit1-review-page .path-link.is-here .path-num {
  background: var(--orange, #f59e0b);
  color: #0a0f5a;
}

body.bio-unit1-review-page .path-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: #eef1f6;
  color: var(--navy, #0a0f5a);
  font-weight: 800;
  font-size: 0.82rem;
  display: grid;
  place-items: center;
}

body.bio-unit1-review-page .path-body strong {
  display: block;
  font-size: 0.9rem;
  color: var(--navy, #0a0f5a);
}

body.bio-unit1-review-page .path-sub {
  display: block;
  font-size: 0.78rem;
  color: #64748b;
  margin-top: 2px;
}

body.bio-unit1-review-page .panel-practice-nav {
  border-color: #c7d2fe;
  background: linear-gradient(180deg, #f8faff 0%, #fff 100%);
  box-shadow: 0 4px 18px rgba(10, 15, 90, 0.06);
}

body.bio-unit1-review-page .panel-practice-nav h3 {
  color: var(--navy, #0a0f5a);
  font-size: 1rem;
}

body.bio-unit1-review-page .practice-jump-nav {
  display: grid;
  gap: 8px;
}

body.bio-unit1-review-page .practice-jump-link {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 2px solid #0a0f5a;
  background: #ffffff;
  text-decoration: none;
  color: #0a0f5a;
  transition: border-color 0.15s ease, background 0.15s ease;
}

body.bio-unit1-review-page a.practice-jump-link:hover,
body.bio-unit1-review-page a.practice-jump-link:focus-visible {
  border-color: #1c2580;
  background: #eff6ff;
  color: #0a0f5a;
}

body.bio-unit1-review-page .practice-jump-link.is-primary {
  border-color: #d97706;
  background: linear-gradient(180deg, #fff7ed 0%, #ffedd5 100%);
  color: #0a0f5a;
}

body.bio-unit1-review-page a.practice-jump-link.is-primary:hover,
body.bio-unit1-review-page a.practice-jump-link.is-primary:focus-visible {
  border-color: #b45309;
  background: #ffedd5;
  color: #0a0f5a;
}

body.bio-unit1-review-page .practice-jump-label {
  font-weight: 800;
  font-size: 0.92rem;
  color: #0a0f5a;
}

body.bio-unit1-review-page .practice-jump-sub {
  font-size: 0.78rem;
  color: #1f2545;
  line-height: 1.35;
}

body.bio-unit1-review-page .main-practice-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0 4px;
}

body.bio-unit1-review-page .main-practice-jump-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 16px;
  border-radius: 12px;
  border: 2px solid #0a0f5a;
  background: #ffffff;
  color: #0a0f5a;
  font-weight: 800;
  font-size: 0.88rem;
  text-decoration: none;
}

body.bio-unit1-review-page a.main-practice-jump-link:hover,
body.bio-unit1-review-page a.main-practice-jump-link:focus-visible {
  border-color: #1c2580;
  background: #eff6ff;
  color: #0a0f5a;
}

body.bio-unit1-review-page .main-practice-jump-link.is-primary {
  border-color: #d97706;
  background: linear-gradient(180deg, #fff7ed 0%, #ffedd5 100%);
  color: #0a0f5a;
}

body.bio-unit1-review-page a.main-practice-jump-link.is-primary:hover,
body.bio-unit1-review-page a.main-practice-jump-link.is-primary:focus-visible {
  border-color: #b45309;
  background: #ffedd5;
  color: #0a0f5a;
}

body.bio-unit1-review-page .section-practice-focus {
  padding: 22px 20px 24px;
  border-radius: 18px;
  border: 2px solid #c7d2fe;
  background: linear-gradient(180deg, #fbfcff 0%, #fff 72%);
  scroll-margin-top: 110px;
}

body.bio-unit1-review-page .section-practice-focus h2 {
  font-size: 1.45rem;
}

body.bio-unit1-review-page .practice-next-link {
  margin-top: 18px;
}

body.bio-unit1-review-page .skill-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 16px;
}

body.bio-unit1-review-page .skill-card {
  background: #fff;
  border: 1px solid var(--border, #e8ecf4);
  border-radius: 14px;
  padding: 16px;
}

body.bio-unit1-review-page .skill-card h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

body.bio-unit1-review-page .skill-card h3 a {
  color: var(--navy, #0a0f5a);
  text-decoration: none;
}

body.bio-unit1-review-page .skill-card h3 a:hover,
body.bio-unit1-review-page .skill-card h3 a:focus-visible {
  text-decoration: underline;
}

body.bio-unit1-review-page .skill-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.55;
  color: #1f2545;
}

body.bio-unit1-review-page .result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

body.bio-unit1-review-page .main .section {
  margin-bottom: 36px;
}

body.bio-unit1-review-page .main h2 {
  color: var(--navy, #0a0f5a);
  font-size: 1.35rem;
  margin: 0 0 10px;
}

body.bio-unit1-review-page .main .muted {
  color: #64748b;
  line-height: 1.6;
}

body.bio-unit1-review-page .quiz-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

body.bio-unit1-review-page .pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

body.bio-unit1-review-page .pill {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 5px 10px;
  border-radius: 999px;
  background: #fff7ed;
  color: #9a3412;
  border: 1px solid #fed7aa;
}

body.bio-unit1-review-page .question-card {
  background: #fff;
  border: 1px solid var(--border, #e8ecf4);
  border-radius: 18px;
  padding: 22px 20px 18px;
  box-shadow: 0 8px 24px rgba(10, 15, 90, 0.06);
}

body.bio-unit1-review-page .question-label {
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #64748b;
  margin: 0 0 8px;
}

body.bio-unit1-review-page .question-text {
  margin: 0 0 16px;
  font-size: 1.08rem;
  line-height: 1.45;
  color: var(--navy, #0a0f5a);
}

body.bio-unit1-review-page .answer-list {
  display: grid;
  gap: 10px;
}

body.bio-unit1-review-page .answer-list button {
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  border-radius: 12px;
  border: 2px solid #94a3b8;
  background: #ffffff;
  color: #0a0f5a;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.12s ease, transform 0.12s ease, background 0.12s ease;
}

body.bio-unit1-review-page .answer-list button:hover:not(:disabled) {
  border-color: #0a0f5a;
  background: #f8faff;
  transform: translateY(-1px);
}

body.bio-unit1-review-page .answer-list button:disabled {
  cursor: default;
}

body.bio-unit1-review-page .answer-list button.is-correct {
  background: #ecfdf5;
  border-color: #6ee7b7;
  color: #065f46;
}

body.bio-unit1-review-page .answer-list button.is-wrong {
  background: #fef2f2;
  border-color: #fca5a5;
  color: #991b1b;
}

body.bio-unit1-review-page .explanation {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 12px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  color: #1e3a5f;
  line-height: 1.55;
  font-size: 0.92rem;
}

body.bio-unit1-review-page .why-wrong {
  margin-top: 10px;
  padding: 12px 14px;
  border-radius: 12px;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  color: #7c2d12;
  font-size: 0.9rem;
  line-height: 1.5;
}

body.bio-unit1-review-page .quiz-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

body.bio-unit1-review-page .result-box {
  margin-top: 20px;
  padding: 22px 20px;
  border-radius: 16px;
  background: linear-gradient(180deg, #f0f4ff, #fff);
  border: 1px solid #c7d2fe;
}

body.bio-unit1-review-page .result-box h3 {
  margin: 0 0 8px;
  color: var(--navy, #0a0f5a);
}

body.bio-unit1-review-page .result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

body.bio-unit1-review-page .review-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 14px;
}

body.bio-unit1-review-page .review-card {
  background: #fff;
  border: 1px solid var(--border, #e8ecf4);
  border-radius: 14px;
  padding: 16px;
}

body.bio-unit1-review-page .review-card h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  color: var(--navy, #0a0f5a);
}

body.bio-unit1-review-page .trap-grid {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

body.bio-unit1-review-page .bio-unit1-review-figure {
  margin: 16px 0;
  text-align: center;
}

body.bio-unit1-review-page .bio-unit1-review-figure img {
  max-width: 100%;
  height: auto;
  border-radius: 14px;
  border: 1px solid var(--border, #e8ecf4);
}

body.bio-unit1-review-page .bio-unit1-review-figure figcaption {
  margin-top: 10px;
  font-size: 0.88rem;
  color: #4a5276;
  text-align: center;
}

body.bio-unit1-review-page .bio-unit1-review-figure--quiz {
  margin: 0 0 14px;
}

body.bio-unit1-review-page .result-box .bio-unit1-review-figure--result {
  margin: 18px 0 12px;
}

body.bio-unit1-review-page .result-box .bio-unit1-review-figure--result img {
  border-color: #c7d2fe;
}

body.bio-unit1-review-page .frq-block {
  border: 1px solid var(--border, #e8ecf4);
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 10px;
  background: #fff;
}

body.bio-unit1-review-page .frq-block summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--navy, #0a0f5a);
}

body.bio-unit1-review-page .frq-model {
  margin-top: 12px;
  line-height: 1.6;
}

body.bio-unit1-review-page .weak-area-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 14px;
}

body.bio-unit1-review-page .weak-area-card {
  display: block;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--border, #e8ecf4);
  background: #fff;
  text-decoration: none;
  color: inherit;
}

body.bio-unit1-review-page .weak-area-card:hover,
body.bio-unit1-review-page .weak-area-card:focus-visible {
  border-color: #a5b4fc;
  box-shadow: 0 6px 16px rgba(10, 15, 90, 0.08);
}

body.bio-unit1-review-page .weak-area-card strong {
  display: block;
  color: var(--navy, #0a0f5a);
  margin-bottom: 4px;
}

body.bio-unit1-review-page .weak-area-card span {
  font-size: 0.84rem;
  color: #64748b;
}

body.bio-unit1-review-page .cta-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 14px;
}

body.bio-unit1-review-page .cta-card {
  display: block;
  padding: 16px;
  border-radius: 14px;
  border: 1px solid var(--border, #e8ecf4);
  background: linear-gradient(180deg, #fff, #f8faff);
  text-decoration: none;
}

body.bio-unit1-review-page .cta-card strong {
  display: block;
  color: var(--navy, #0a0f5a);
  margin-bottom: 6px;
}

body.bio-unit1-review-page .cta-card span {
  font-size: 0.84rem;
  color: #64748b;
}

body.bio-unit1-review-page .cta-card.cta-card-primary {
  border-color: #2f66d0;
  background: linear-gradient(145deg, #0a0f5a, #1c2580);
}

body.bio-unit1-review-page .cta-card.cta-card-primary strong {
  color: #ffffff;
}

body.bio-unit1-review-page .cta-card.cta-card-primary span {
  color: rgba(255, 255, 255, 0.88);
}

body.bio-unit1-review-page .bio-review-role-note {
  margin: 0 0 20px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid #dbe2f2;
  background: #f8faff;
}

body.bio-unit1-review-page .bio-review-role-note p {
  margin: 0;
  color: #1f2545;
}

body.bio-unit1-review-page .hero-card .score-ring-center span {
  font-size: 0.62rem;
  line-height: 1.25;
  max-width: 5rem;
  text-align: center;
}

body.bio-unit1-review-page .full-ad {
  margin: 16px 0;
  padding: 20px;
  border-radius: 14px;
  background: #f8faff;
  border: 1px dashed #c7d2fe;
  text-align: center;
  color: #4a5276;
}

body.bio-unit1-review-page .bio-unit1-review-mobile-bar {
  display: none;
  position: sticky;
  bottom: 0;
  z-index: 40;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.96);
  border-top: 1px solid #e8ecf4;
  box-shadow: 0 -6px 20px rgba(10, 15, 90, 0.08);
}

body.bio-unit1-review-page .bio-unit1-review-mobile-bar .btn {
  width: 100%;
  justify-content: center;
}

@media (max-width: 900px) {
  body.bio-unit1-review-page .bio-unit1-review-hero .hero-inner,
  body.bio-unit1-review-page .layout {
    grid-template-columns: 1fr;
  }

  body.bio-unit1-review-page .hero-card {
    max-width: 240px;
    margin: 4px auto 0;
  }

  body.bio-unit1-review-page .sidebar {
    display: none;
  }

  body.bio-unit1-review-page .skill-grid,
  body.bio-unit1-review-page .cta-grid {
    grid-template-columns: 1fr;
  }

  body.bio-unit1-review-page .review-grid,
  body.bio-unit1-review-page .weak-area-grid {
    grid-template-columns: 1fr;
  }

  body.bio-unit1-review-page .bio-unit1-review-mobile-bar {
    display: flex;
    gap: 10px;
  }

  body.bio-unit1-review-page .bio-unit1-review-mobile-bar .btn {
    flex: 1;
    min-width: 0;
  }

  body.bio-unit1-review-page .review-mobile-jump {
    display: flex;
  }

  body.bio-unit1-review-page .learning-path-grid {
    grid-template-columns: 1fr;
  }
}

body.bio-unit1-review-page .callout {
  background: #f0f6ff;
  border: 1px solid #d6e4ff;
  padding: 18px;
  border-radius: 16px;
  margin: 18px 0;
  color: #1f2545;
}
body.bio-unit1-review-page .callout-warn {
  background: #fffbeb;
  border-color: #fcd34d;
  color: #1f2545;
}

body.bio-unit1-review-page .callout-tip,
body.bio-unit1-review-page .main .callout:not(.callout-warn) {
  background: linear-gradient(180deg, #f0f6ff 0%, #f8faff 100%);
  border-left: 4px solid #3b82f6;
}

body.bio-unit1-review-page .main .section-eyebrow {
  color: #f59e0b;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 8px;
}

body.bio-unit1-review-page .review-content-section {
  scroll-margin-top: 110px;
  padding: 22px 20px 24px;
  border-radius: 18px;
  border: 1px solid #e8ecf4;
  background: #ffffff;
  box-shadow: 0 4px 20px rgba(10, 15, 90, 0.04);
}

body.bio-unit1-review-page .review-content-section + .review-content-section,
body.bio-unit1-review-page .section-practice-focus + .review-content-section {
  margin-top: 8px;
}

body.bio-unit1-review-page .review-table-section {
  background: linear-gradient(180deg, #fbfcff 0%, #ffffff 100%);
  border-color: #c7d2fe;
}

body.bio-unit1-review-page .review-big-picture .big-picture-card {
  margin-top: 12px;
  padding: 18px 20px;
  border-radius: 14px;
  background: linear-gradient(135deg, #f0f4ff 0%, #f8faff 100%);
  border: 1px solid #c7d2fe;
}

body.bio-unit1-review-page .review-big-picture .big-picture-card p {
  margin: 0 0 12px;
  color: #1f2545;
  line-height: 1.62;
}

body.bio-unit1-review-page .review-big-picture .big-picture-card p:last-child {
  margin-bottom: 0;
}

body.bio-unit1-review-page .review-mobile-jump {
  display: none;
  flex-wrap: nowrap;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding: 0 0 16px;
  margin: 0 0 8px;
  scrollbar-width: thin;
}

body.bio-unit1-review-page .review-mobile-jump a {
  flex: 0 0 auto;
  padding: 10px 14px;
  border-radius: 999px;
  border: 2px solid #0a0f5a;
  background: #ffffff;
  color: #0a0f5a;
  font-weight: 800;
  font-size: 0.82rem;
  text-decoration: none;
  white-space: nowrap;
}

body.bio-unit1-review-page .review-mobile-jump a:hover,
body.bio-unit1-review-page .review-mobile-jump a:focus-visible {
  background: #eff6ff;
  border-color: #1c2580;
}

body.bio-unit1-review-page .study-pass-timeline {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

body.bio-unit1-review-page .study-pass-card {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid #e8ecf4;
  background: #f8faff;
}

body.bio-unit1-review-page .study-pass-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background: linear-gradient(135deg, #0a0f5a, #2a35a3);
  color: #ffffff;
  font-weight: 900;
  font-size: 1rem;
  display: grid;
  place-items: center;
}

body.bio-unit1-review-page .study-pass-card strong {
  display: block;
  color: #0a0f5a;
  margin-bottom: 6px;
  font-size: 0.98rem;
}

body.bio-unit1-review-page .study-pass-card p {
  margin: 0;
  color: #4a5276;
  font-size: 0.9rem;
  line-height: 1.55;
}

body.bio-unit1-review-page .learning-path-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

body.bio-unit1-review-page .learning-path-card {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid #e8ecf4;
  background: #fff;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.12s ease;
}

body.bio-unit1-review-page .learning-path-card:hover,
body.bio-unit1-review-page .learning-path-card:focus-visible {
  border-color: #a5b4fc;
  box-shadow: 0 8px 20px rgba(10, 15, 90, 0.08);
  transform: translateY(-1px);
}

body.bio-unit1-review-page .learning-path-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: #eef1f6;
  color: #0a0f5a;
  font-weight: 900;
  font-size: 0.88rem;
  display: grid;
  place-items: center;
}

body.bio-unit1-review-page .learning-path-body strong {
  display: block;
  color: #0a0f5a;
  margin-bottom: 4px;
  font-size: 0.92rem;
}

body.bio-unit1-review-page .learning-path-body span {
  display: block;
  font-size: 0.82rem;
  color: #64748b;
  line-height: 1.4;
}

body.bio-unit1-review-page .topic-review-panel {
  margin-top: 12px;
  padding: 16px 18px 18px;
  border-radius: 14px;
  background: #fbfcff;
  border: 1px solid #e8ecf4;
  border-left-width: 4px;
  border-left-color: #3b82f6;
}

body.bio-unit1-review-page .topic-review-panel[data-topic="water-properties"] {
  border-left-color: #0ea5e9;
}

body.bio-unit1-review-page .topic-review-panel[data-topic="elements-of-life"] {
  border-left-color: #8b5cf6;
}

body.bio-unit1-review-page .topic-review-panel[data-topic="monomers-and-polymers"],
body.bio-unit1-review-page .topic-review-panel[data-topic="dehydration-synthesis-and-hydrolysis"] {
  border-left-color: #6366f1;
}

body.bio-unit1-review-page .topic-review-panel[data-topic="carbohydrates"] {
  border-left-color: #f59e0b;
}

body.bio-unit1-review-page .topic-review-panel[data-topic="lipids"] {
  border-left-color: #eab308;
}

body.bio-unit1-review-page .topic-review-panel[data-topic="proteins"] {
  border-left-color: #ec4899;
}

body.bio-unit1-review-page .topic-review-panel[data-topic="nucleic-acids"] {
  border-left-color: #10b981;
}

body.bio-unit1-review-page .topic-review-panel p {
  color: #1f2545;
  line-height: 1.6;
}

body.bio-unit1-review-page .topic-deep-link {
  margin: 14px 0 0;
  font-weight: 600;
}

body.bio-unit1-review-page .topic-deep-link a {
  color: #1c2580;
}

body.bio-unit1-review-page .quiz-progress-head {
  margin: 0 0 14px;
}

body.bio-unit1-review-page .quiz-progress-track {
  height: 8px;
  background: #e8ecf4;
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 8px;
}

body.bio-unit1-review-page .quiz-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #f59e0b, #fbbf24);
  border-radius: 999px;
  transition: width 0.3s ease;
}

body.bio-unit1-review-page .quiz-progress-label {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 700;
  color: #4a5276;
}

body.bio-unit1-review-page .skill-card-mcq {
  border-top: 3px solid #f59e0b;
}

body.bio-unit1-review-page .skill-card-frq {
  border-top: 3px solid #3b82f6;
}

body.bio-unit1-review-page .skill-card-route {
  border-top: 3px solid #10b981;
}

body.bio-unit1-review-page .skill-card {
  transition: box-shadow 0.15s ease, transform 0.12s ease;
}

body.bio-unit1-review-page .skill-card:hover {
  box-shadow: 0 8px 22px rgba(10, 15, 90, 0.08);
  transform: translateY(-2px);
}

body.bio-unit1-review-page .frq-stack {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

body.bio-unit1-review-page .frq-block {
  margin-bottom: 0;
  padding: 0;
  overflow: hidden;
}

body.bio-unit1-review-page .frq-block summary {
  padding: 14px 16px;
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

body.bio-unit1-review-page .frq-block summary::-webkit-details-marker {
  display: none;
}

body.bio-unit1-review-page .frq-block summary::after {
  content: "+";
  margin-left: auto;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: #eef1f6;
  color: #0a0f5a;
  font-weight: 900;
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  line-height: 1;
}

body.bio-unit1-review-page .frq-block[open] summary::after {
  content: "−";
  background: #0a0f5a;
  color: #ffffff;
}

body.bio-unit1-review-page .frq-block[open] {
  border-color: #c7d2fe;
  box-shadow: 0 6px 18px rgba(10, 15, 90, 0.06);
}

body.bio-unit1-review-page .frq-block[open] summary {
  background: #f8faff;
  border-bottom: 1px solid #e8ecf4;
}

body.bio-unit1-review-page .frq-model {
  padding: 14px 16px 16px;
}

body.bio-unit1-review-page .clue-card-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

body.bio-unit1-review-page .clue-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 10px;
  align-items: center;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid #e8ecf4;
  background: #fff;
}

body.bio-unit1-review-page .clue-if {
  grid-column: 1 / -1;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #64748b;
}

body.bio-unit1-review-page .clue-phrase {
  color: #0a0f5a;
  font-size: 0.95rem;
}

body.bio-unit1-review-page .clue-arrow {
  color: #f59e0b;
  font-weight: 900;
}

body.bio-unit1-review-page .clue-answer {
  grid-column: 2 / -1;
  color: #1f2545;
  font-style: normal;
  font-size: 0.92rem;
}

body.bio-unit1-review-page .cram-checklist {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

body.bio-unit1-review-page .cram-checklist li {
  position: relative;
  padding: 12px 14px 12px 42px;
  border-radius: 12px;
  border: 1px solid #e8ecf4;
  background: #f8faff;
  color: #1f2545;
  line-height: 1.5;
  font-size: 0.92rem;
}

body.bio-unit1-review-page .cram-checklist li::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 2px solid #94a3b8;
  background: #fff;
}

body.bio-unit1-review-page .trap-card {
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid #fecaca;
  background: linear-gradient(180deg, #fff5f5 0%, #ffffff 100%);
}

body.bio-unit1-review-page .trap-card h4 {
  margin: 0 0 8px;
  color: #991b1b;
  font-size: 1rem;
}

body.bio-unit1-review-page .trap-card p {
  margin: 0;
  color: #1f2545;
  line-height: 1.55;
}

body.bio-unit1-review-page .review-card {
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

body.bio-unit1-review-page .review-card:hover {
  border-color: #c7d2fe;
  box-shadow: 0 4px 14px rgba(10, 15, 90, 0.06);
}

body.bio-unit1-review-page .faq-block details {
  border: 1px solid #e8ecf4;
  border-radius: 12px;
  margin-bottom: 10px;
  background: #fff;
  overflow: hidden;
}

body.bio-unit1-review-page .faq-block details[open] {
  border-color: #c7d2fe;
  box-shadow: 0 4px 14px rgba(10, 15, 90, 0.05);
}

body.bio-unit1-review-page .faq-block summary {
  padding: 14px 16px;
  font-weight: 700;
  color: #0a0f5a;
  cursor: pointer;
  list-style: none;
}

body.bio-unit1-review-page .faq-block summary::-webkit-details-marker {
  display: none;
}

body.bio-unit1-review-page .faq-block details p {
  margin: 0;
  padding: 0 16px 16px;
  color: #1f2545;
  line-height: 1.6;
}

body.bio-unit1-review-page .hub-table-wrap table.data caption {
  caption-side: top;
  text-align: left;
  font-weight: 800;
  color: #0a0f5a;
  padding: 0 0 10px;
  font-size: 0.95rem;
}

body.bio-unit1-review-page .hub-table-wrap thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  box-shadow: 0 1px 0 #e2e8f0;
}

body.bio-unit1-review-page .hub-table-wrap tbody tr:nth-child(even) {
  background: #fbfcff;
}

body.bio-unit1-review-page .hub-table-wrap tbody tr:hover {
  background: #f0f6ff;
}

body.bio-unit1-review-page .weak-area-card {
  transition: transform 0.12s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

body.bio-unit1-review-page .weak-area-card:hover,
body.bio-unit1-review-page .weak-area-card:focus-visible {
  transform: translateY(-2px);
}

body.bio-unit1-review-page .cta-card {
  transition: transform 0.12s ease, box-shadow 0.15s ease;
}

body.bio-unit1-review-page a.cta-card:hover,
body.bio-unit1-review-page a.cta-card:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(10, 15, 90, 0.1);
}

body.bio-unit1-review-page .bio-review-role-note {
  border-left: 4px solid #f59e0b;
  background: linear-gradient(90deg, #fff7ed 0%, #f8faff 100%);
}

body.bio-unit1-review-page .hub-quick-review {
  margin: 12px 0;
  color: #1f2545;
}
body.bio-unit1-review-page .table-wrap {
  overflow-x: auto;
  margin: 16px 0 20px;
}
body.bio-unit1-review-page .table-wrap table.data {
  width: 100%;
  border-collapse: collapse;
}
body.bio-unit1-review-page .table-wrap th,
body.bio-unit1-review-page .table-wrap td {
  border: 1px solid #e2e8f0;
  padding: 10px 12px;
  text-align: left;
  color: #1f2545;
}
body.bio-unit1-review-page .table-wrap th {
  background: #f8faff;
  color: #0a0f5a;
}

@media (max-width: 700px) {
  body.bio-unit1-review-page .skill-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  body.bio-unit1-review-page .quiz-toolbar {
    flex-direction: column;
  }

  body.bio-unit1-review-page .pill-row {
    justify-content: flex-start;
  }

  body.bio-unit1-review-page .section-practice-focus {
    padding: 16px 14px 18px;
  }

  body.bio-unit1-review-page .main,
  body.bio-unit1-review-page .layout {
    overflow-x: hidden;
  }

  body.bio-unit1-review-page .hub-table-wrap,
  body.bio-unit1-review-page .table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    max-width: 100%;
  }

  body.bio-unit1-review-page .bio-unit1-review-figure figcaption {
    text-align: center;
    font-size: 0.88rem;
    line-height: 1.45;
    color: #4a5276;
  }

  body.bio-unit1-review-page .frq-block summary {
    padding: 12px 14px;
    min-height: 44px;
  }

  body.bio-unit1-review-page .hero-ctas {
    flex-direction: column;
    align-items: stretch;
  }

  body.bio-unit1-review-page .hero-ctas .btn {
    width: 100%;
  }
}

/* Logged-out save progress CTA (shown via ap-hug-diffusion-practice.js) */
body.bio-unit1-review-page .bio-save-progress-cta {
  margin-top: 8px;
  border: none;
  border-radius: 20px;
  padding: 28px 28px 32px;
  background:
    radial-gradient(circle at 88% 10%, rgba(245, 158, 11, 0.2), transparent 16rem),
    linear-gradient(135deg, #0a0f5a 0%, #1c2580 55%, #2a35a3 100%);
  color: #ffffff;
}

body.bio-unit1-review-page .bio-save-progress-cta .section-eyebrow {
  color: #f59e0b;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

body.bio-unit1-review-page .bio-save-progress-cta h2 {
  color: #ffffff !important;
  font-size: clamp(1.35rem, 2.8vw, 1.75rem);
  margin: 0 0 12px;
}

body.bio-unit1-review-page .bio-save-progress-cta .muted {
  color: rgba(255, 255, 255, 0.88) !important;
  max-width: 52ch;
  line-height: 1.6;
}

body.bio-unit1-review-page .bio-save-progress-cta .final-loop-actions {
  margin-top: 18px;
}

body.bio-unit1-review-page .bio-save-progress-cta .btn-primary {
  background: #ffd37a;
  color: #0a0f5a;
  font-weight: 800;
  border: none;
  border-radius: 999px;
  padding: 14px 22px;
  box-shadow: 0 8px 24px rgba(255, 211, 122, 0.45);
}

body.bio-unit1-review-page .bio-save-progress-cta .btn-primary:hover,
body.bio-unit1-review-page .bio-save-progress-cta .btn-primary:focus-visible {
  background: #ffe9a8;
  color: #0a0f5a;
}

/* Review dashboard helpers */
body.bio-unit1-review-page .one-minute-cram-list {
  margin: 14px 0 12px;
  padding: 0 0 0 1.25rem;
  display: grid;
  gap: 10px;
  color: #1f2545;
  line-height: 1.55;
}

body.bio-unit1-review-page .one-minute-cram-list li {
  padding-left: 4px;
}

body.bio-unit1-review-page .cram-cta-note {
  margin: 0;
}

body.bio-unit1-review-page .know-overstudy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 16px 0 12px;
}

body.bio-unit1-review-page .know-overstudy-card {
  border-radius: 16px;
  border: 1px solid #e2e8f0;
  padding: 18px 18px 14px;
  background: #ffffff;
}

body.bio-unit1-review-page .know-overstudy-card h3 {
  margin: 0 0 12px;
  font-size: 1rem;
  color: #0a0f5a;
}

body.bio-unit1-review-page .know-overstudy-card ul {
  margin: 0;
  padding-left: 1.15rem;
  color: #1f2545;
  line-height: 1.5;
  font-size: 0.92rem;
}

body.bio-unit1-review-page .know-overstudy-card-focus {
  border-color: #bfdbfe;
  background: #f8faff;
}

body.bio-unit1-review-page .know-overstudy-note {
  margin: 0;
}

body.bio-unit1-review-page .stem-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

body.bio-unit1-review-page .stem-card {
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 14px 16px;
  background: #ffffff;
}

body.bio-unit1-review-page .stem-card-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 999px;
  background: #eff6ff;
  color: #0a0f5a;
  font-weight: 800;
  font-size: 0.78rem;
  margin-bottom: 8px;
}

body.bio-unit1-review-page .stem-pattern,
body.bio-unit1-review-page .stem-think {
  margin: 0 0 8px;
  font-size: 0.92rem;
  line-height: 1.5;
  color: #1f2545;
}

body.bio-unit1-review-page .stem-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #f59e0b;
  margin-bottom: 4px;
}

body.bio-unit1-review-page .review-time-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

body.bio-unit1-review-page .review-time-card {
  border-radius: 14px;
  border: 1px solid #dbeafe;
  background: linear-gradient(180deg, #f8faff 0%, #ffffff 100%);
  padding: 16px 18px;
}

body.bio-unit1-review-page .review-time-card h3 {
  margin: 0 0 8px;
  color: #0a0f5a;
  font-size: 1.05rem;
}

body.bio-unit1-review-page .review-time-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.5;
  color: #1f2545;
}

body.bio-unit1-review-page .review-time-card a {
  font-weight: 700;
}

body.bio-unit1-review-page .quiz-track-callout h3,
body.bio-unit1-review-page .frq-formula-callout h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  color: #0a0f5a;
}

body.bio-unit1-review-page .frq-formula-steps {
  margin: 8px 0 12px;
  padding-left: 1.25rem;
  color: #1f2545;
  line-height: 1.5;
}

body.bio-unit1-review-page .frq-formula-example {
  margin: 0;
}

body.bio-unit1-review-page .quiz-score-bands {
  margin: 0 0 10px;
  line-height: 1.55;
}

body.bio-unit1-review-page .cta-grid-final {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

body.bio-unit1-review-page .editorial-note-section {
  border-top: 1px solid #e8ecf4;
  padding-top: 8px;
}

@media (max-width: 900px) {
  body.bio-unit1-review-page .know-overstudy-grid,
  body.bio-unit1-review-page .stem-card-grid,
  body.bio-unit1-review-page .review-time-grid,
  body.bio-unit1-review-page .cta-grid-final {
    grid-template-columns: 1fr;
  }

  body.bio-unit1-review-page .bio-unit1-review-hero .hero-text {
    order: 1;
  }

  body.bio-unit1-review-page .bio-unit1-review-hero .hero-card {
    order: 2;
    max-width: 220px;
  }
}

@media (max-width: 640px) {
  body.bio-unit1-review-page .answer-list button {
    min-height: 48px;
  }

  body.bio-unit1-review-page .quiz-track-callout,
  body.bio-unit1-review-page .frq-formula-callout {
    padding: 14px;
  }
}