:root {
  color-scheme: light;
  --font-sans: ui-sans-serif, Inter, "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --color-bg: #f1f2f6;
  --color-bg-warm: #f7f5ef;
  --color-surface: #ffffff;
  --color-surface-soft: #f7f8fb;
  --color-surface-raised: #ffffff;
  --color-text: #121419;
  --color-muted: #626875;
  --color-subtle: #858b98;
  --color-line: #dfe2e8;
  --color-line-strong: #c8cdd7;
  --color-primary: #2457f5;
  --color-primary-strong: #173bbd;
  --color-primary-soft: #eaf0ff;
  --color-accent-lime: #d8ff5f;
  --color-accent-coral: #ff6b57;
  --color-accent-amber: #ffc83d;
  --color-accent-mint: #9be4cb;
  --color-accent-lavender: #9a8cf5;
  --color-success: #087b57;
  --color-success-soft: #e9f8f2;
  --color-danger: #c93443;
  --color-danger-soft: #fff0f1;
  --color-warning: #956100;
  --color-ink: #121419;
  --color-white: #ffffff;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --radius-xs: 3px;
  --radius-sm: 5px;
  --radius-md: 8px;
  --radius-card: 8px;
  --radius-pill: 999px;
  --shadow-xs: 0 1px 2px rgba(18, 20, 25, 0.05);
  --shadow-sm: 0 8px 24px rgba(18, 20, 25, 0.07);
  --shadow-md: 0 18px 48px rgba(18, 20, 25, 0.11);
  --shadow-strong: 0 28px 80px rgba(18, 20, 25, 0.18);
  --transition-fast: 130ms ease;
  --transition-base: 190ms ease;
  --transition-slow: 280ms ease;
  --z-base: 0;
  --z-raised: 2;
  --z-sticky: 20;
  --z-overlay: 50;
  --z-modal: 60;
  --ink: var(--color-text);
  --muted: var(--color-muted);
  --line: var(--color-line);
  --paper: var(--color-bg);
  --surface: var(--color-surface);
  --green: var(--color-success);
  --green-dark: #075b42;
  --blue: var(--color-primary);
  --red: var(--color-danger);
  --amber: var(--color-warning);
  --navy: var(--color-ink);
  --plum: #705bc4;
  --shadow: var(--shadow-md);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0 0 auto;
  z-index: var(--z-overlay);
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary) 0 38%, var(--color-accent-coral) 38% 63%, var(--color-accent-lime) 63% 100%);
  content: "";
  pointer-events: none;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3,
strong,
button {
  letter-spacing: 0;
}

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

button,
.button-primary,
.button-secondary,
.button-ghost,
.button-premium,
.button-danger {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-md);
  padding: 0 var(--space-4);
  background: var(--color-surface);
  color: var(--color-text);
  font-weight: 800;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}

button:hover:not(:disabled),
.button-primary:hover,
.button-secondary:hover,
.button-ghost:hover,
.button-premium:hover,
.button-danger:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

button:active:not(:disabled),
.button-primary:active,
.button-secondary:active,
.button-ghost:active,
.button-premium:active,
.button-danger:active {
  transform: translateY(0) scale(0.985);
  box-shadow: none;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
  transform: none;
}

.primary,
.button-primary {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: var(--color-white);
}

.primary:hover,
.button-primary:hover {
  border-color: var(--color-primary-strong);
  background: var(--color-primary-strong);
}

.secondary,
.button-secondary {
  border-color: var(--color-text);
  background: var(--color-surface);
  color: var(--color-text);
}

.ghost,
.button-ghost {
  border-color: transparent;
  background: transparent;
}

.premium,
.button-premium {
  border-color: var(--color-ink);
  background: var(--color-ink);
  color: var(--color-accent-lime);
}

.danger,
.button-danger {
  border-color: rgba(201, 52, 67, 0.35);
  background: var(--color-danger-soft);
  color: var(--color-danger);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible,
.admin-question-row:focus-visible {
  outline: 3px solid var(--color-accent-amber);
  outline-offset: 3px;
}

.hidden {
  display: none !important;
}

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

.shell {
  width: min(100%, 1440px);
  margin: 0 auto;
  padding: var(--space-5);
}

.app-header {
  display: grid;
  gap: var(--space-4);
}

.app-nav,
.seo-topbar,
.legal-header,
.admin-topbar,
.topbar {
  display: flex;
  min-height: 68px;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow-xs);
}

.brand-mark {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  font-weight: 900;
  text-decoration: none;
}

.brand-symbol,
.seo-topbar .brand-mark::before,
.legal-header .brand-mark::before {
  display: grid;
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  place-items: center;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: var(--color-accent-lime);
  font-size: 0.8rem;
  font-weight: 950;
  content: "TC";
}

.brand-copy {
  display: grid;
  line-height: 1.1;
}

.brand-copy strong {
  font-size: 1rem;
}

.brand-copy small {
  margin-top: 4px;
  color: var(--color-muted);
  font-size: 0.75rem;
  font-weight: 700;
}

.site-nav,
.admin-nav,
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.site-nav a,
.admin-nav a,
.nav-restore-link {
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.8rem;
  color: var(--color-muted);
  font-size: 0.86rem;
  font-weight: 800;
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.site-nav a:hover,
.site-nav a.active,
.admin-nav a:hover,
.nav-restore-link:hover {
  background: var(--color-surface-soft);
  color: var(--color-text);
}

.nav-unlock {
  min-height: 42px;
  white-space: nowrap;
}

.hero-panel {
  position: relative;
  display: grid;
  min-height: 390px;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.72fr);
  gap: var(--space-10);
  overflow: hidden;
  border-radius: var(--radius-md);
  padding: var(--space-12);
  background: var(--color-ink);
  color: var(--color-white);
}

.hero-panel::before {
  position: absolute;
  inset: auto auto 0 0;
  width: 12rem;
  height: 10px;
  background: var(--color-accent-coral);
  content: "";
}

.hero-copy {
  position: relative;
  z-index: var(--z-raised);
  display: flex;
  max-width: 700px;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.eyebrow,
.section-label {
  margin: 0 0 var(--space-3);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 900;
  line-height: 1.2;
  text-transform: uppercase;
}

.hero-copy .eyebrow,
.seo-hero .eyebrow {
  color: var(--color-accent-lime);
}

.hero-copy h1 {
  max-width: 780px;
  margin: 0;
  font-size: 4.25rem;
  font-weight: 950;
  line-height: 0.98;
}

.hero-subheading {
  max-width: 660px;
  margin: var(--space-6) 0 0;
  color: #d9dce4;
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.55;
}

.hero-actions,
.seo-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.hero-actions .button-primary {
  border-color: var(--color-accent-lime);
  background: var(--color-accent-lime);
  color: var(--color-text);
}

.hero-actions .button-primary:hover {
  border-color: var(--color-white);
  background: var(--color-white);
}

.hero-actions .button-secondary {
  border-color: rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.07);
  color: var(--color-white);
}

.hero-disclaimer {
  margin: var(--space-5) 0 0;
  color: #aeb4c1;
  font-size: 0.78rem;
  font-weight: 700;
}

.hero-visual {
  position: relative;
  align-self: center;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  background: var(--color-primary);
  box-shadow: var(--shadow-strong);
}

.hero-visual-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  padding: var(--space-3) var(--space-4);
  color: #dfe7ff;
  font-size: 0.76rem;
  font-weight: 800;
}

.hero-visual-body {
  display: grid;
  min-height: 235px;
  grid-template-columns: 43% 1fr;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-5);
}

.hero-visual-body img {
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 4;
  border: 5px solid var(--color-white);
  border-radius: var(--radius-sm);
  object-fit: cover;
}

.hero-visual-body > div {
  display: grid;
  gap: var(--space-3);
}

.hero-visual-label {
  width: fit-content;
  border-radius: var(--radius-pill);
  padding: 0.3rem 0.55rem;
  background: var(--color-accent-amber);
  color: var(--color-text);
  font-size: 0.7rem;
  font-weight: 900;
  text-transform: uppercase;
}

.hero-visual-body strong {
  font-size: 1.35rem;
  line-height: 1.15;
}

.hero-visual-body p {
  margin: 0;
  color: #dfe7ff;
  font-size: 0.88rem;
}

.hero-visual-progress {
  height: 8px;
  background: rgba(255, 255, 255, 0.2);
}

.hero-visual-progress span {
  display: block;
  width: 62%;
  height: 100%;
  background: var(--color-accent-lime);
}

.hero-stats,
.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-line);
}

.hero-stats div,
.trust-strip div {
  display: grid;
  min-height: 78px;
  align-content: center;
  gap: 2px;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
}

.hero-stats div:nth-child(3n + 2) {
  box-shadow: inset 0 3px 0 var(--color-accent-coral);
}

.hero-stats div:nth-child(3n + 3) {
  box-shadow: inset 0 3px 0 var(--color-accent-lime);
}

.hero-stats div:nth-child(3n + 4) {
  box-shadow: inset 0 3px 0 var(--color-accent-amber);
}

.hero-stats strong,
.trust-strip strong {
  font-size: 1.25rem;
  line-height: 1.1;
}

.hero-stats span,
.trust-strip span {
  color: var(--color-muted);
  font-size: 0.75rem;
  font-weight: 750;
}

.layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr) 276px;
  align-items: start;
  gap: var(--space-4);
  margin-top: var(--space-5);
}

.sidebar,
.coach-rail {
  display: grid;
  gap: var(--space-4);
  min-width: 0;
}

.panel,
.question-view,
.admin-section,
.admin-protected {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-xs);
}

.panel {
  padding: var(--space-4);
}

.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.panel-heading h2 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.2;
}

.panel-heading .section-label {
  margin-bottom: var(--space-1);
}

.panel-heading > span,
#modeAccessLabel,
#unlockBadge,
#flowStateLabel {
  border-radius: var(--radius-pill);
  padding: 0.25rem 0.5rem;
  background: var(--color-surface-soft);
  color: var(--color-muted);
  font-size: 0.68rem;
  font-style: normal;
  font-weight: 850;
  white-space: nowrap;
}

.mode-card-grid {
  display: grid;
  gap: var(--space-2);
}

.mode-card {
  position: relative;
  display: grid;
  min-height: 76px;
  grid-template-columns: 30px minmax(0, 1fr);
  grid-template-rows: auto auto;
  align-items: center;
  justify-content: stretch;
  column-gap: var(--space-3);
  overflow: hidden;
  border-color: transparent;
  padding: var(--space-3);
  background: transparent;
  text-align: left;
}

.mode-card:hover:not(:disabled) {
  border-color: var(--color-line);
  background: var(--color-surface-soft);
  box-shadow: none;
}

.mode-card.active {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  box-shadow: inset 4px 0 0 var(--color-primary);
}

.mode-icon {
  grid-row: 1 / 3;
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: var(--radius-sm);
  background: var(--color-surface-soft);
  color: var(--color-subtle);
  font-size: 0.68rem;
  font-weight: 900;
}

.mode-card.active .mode-icon {
  background: var(--color-primary);
  color: var(--color-white);
}

.mode-card-top {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.mode-card strong {
  font-size: 0.88rem;
}

.mode-card > span:last-child {
  overflow: hidden;
  color: var(--color-muted);
  font-size: 0.72rem;
  font-weight: 650;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mode-card em,
.mobile-mode-rail em {
  border-radius: var(--radius-pill);
  padding: 0.18rem 0.4rem;
  background: var(--color-accent-amber);
  color: var(--color-text);
  font-size: 0.6rem;
  font-style: normal;
  font-weight: 900;
  text-transform: uppercase;
}

.mode-card.is-locked:not(.active) {
  color: var(--color-muted);
}

.mode-card:not(.is-locked) em[data-premium-badge],
.mobile-mode-rail button:not(.is-locked) em[data-premium-badge] {
  display: none;
}

details > summary {
  list-style: none;
}

details > summary::-webkit-details-marker {
  display: none;
}

.mobile-collapsible summary,
.browse-panel summary,
.stats-panel summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 850;
}

.mobile-collapsible summary::after {
  color: var(--color-primary);
  content: "+";
  font-size: 1.1rem;
}

.mobile-collapsible[open] summary::after {
  content: "-";
}

.mobile-collapsible summary em {
  margin-left: auto;
  color: var(--color-muted);
  font-size: 0.68rem;
  font-style: normal;
  font-weight: 650;
}

.collapsible-body {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.field {
  display: grid;
  gap: var(--space-2);
}

.field > span,
.field > label,
.check-field span {
  color: var(--color-muted);
  font-size: 0.72rem;
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-sm);
  padding: 0 var(--space-3);
  background: var(--color-surface);
  color: var(--color-text);
}

textarea {
  min-height: 110px;
  padding-block: var(--space-3);
  resize: vertical;
}

input::placeholder,
textarea::placeholder {
  color: #999fac;
}

.actions,
.browse-actions {
  display: flex;
  gap: var(--space-2);
}

.browse-actions button {
  min-width: 0;
  flex: 1;
}

.workspace {
  display: grid;
  min-width: 0;
  gap: var(--space-3);
}

.mobile-mode-rail {
  display: none;
}

.status-bar {
  min-height: 38px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.8rem;
  background: rgba(255, 255, 255, 0.72);
  color: var(--color-muted);
  font-size: 0.76rem;
  font-weight: 700;
}

.insight-bar,
.exam-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  background: var(--color-surface);
}

.insight-bar strong,
.exam-bar strong {
  display: block;
  margin-bottom: 2px;
}

.insight-bar p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.78rem;
}

.insight-bar .section-label {
  margin-bottom: 2px;
}

.exam-bar {
  border-color: var(--color-ink);
  background: var(--color-ink);
  color: var(--color-white);
}

.exam-bar > div {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

#examTimer {
  border-radius: var(--radius-pill);
  padding: 0.3rem 0.55rem;
  background: var(--color-accent-lime);
  color: var(--color-text);
  font-weight: 900;
}

.question-view {
  position: relative;
  overflow: hidden;
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
}

.question-view::before {
  position: absolute;
  inset: 0 0 auto;
  height: 5px;
  background: var(--color-primary);
  content: "";
}

.question-view.answered-correct::before {
  background: var(--color-success);
}

.question-view.answered-wrong::before {
  background: var(--color-accent-coral);
}

.question-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.question-badges {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.category-pill,
.priority-pill,
.high-yield-reason-badge,
.category-chip,
.difficulty-chip,
.premium-chip,
.stat-chip {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  padding: 0.25rem 0.65rem;
  background: var(--color-surface-soft);
  color: var(--color-text);
  font-size: 0.7rem;
  font-weight: 850;
}

.category-pill {
  border-color: rgba(36, 87, 245, 0.2);
  background: var(--color-primary-soft);
  color: var(--color-primary-strong);
}

.priority-pill.priority-critical,
.priority-critical {
  border-color: rgba(201, 52, 67, 0.28);
  background: var(--color-danger-soft);
  color: var(--color-danger);
}

.priority-pill.priority-high,
.priority-high,
.high-yield-reason-badge {
  border-color: rgba(255, 200, 61, 0.5);
  background: #fff8dc;
  color: var(--color-warning);
}

.priority-pill.priority-standard,
.priority-standard {
  border-color: rgba(154, 140, 245, 0.3);
  background: #f1efff;
  color: #5d4fb5;
}

.question-number {
  flex: 0 0 auto;
  color: var(--color-muted);
  font-size: 0.76rem;
  font-weight: 850;
}

.priority-meta {
  min-height: 0;
  margin: calc(var(--space-4) * -1) 0 var(--space-3);
  color: var(--color-muted);
  font-size: 0.74rem;
  font-weight: 650;
}

.question-title {
  max-width: 820px;
  margin: 0 0 var(--space-8);
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1.18;
}

.question-image-wrap {
  position: relative;
  display: grid;
  width: min(100%, 680px);
  min-height: 220px;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  margin: 0 0 var(--space-6);
  background: var(--color-surface-soft);
}

.question-image {
  width: 100%;
  max-height: 430px;
  object-fit: contain;
}

.question-image-wrap.image-loading::after,
.question-image-wrap.image-error::after {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: var(--color-surface-soft);
  color: var(--color-muted);
  content: "Loading image...";
  font-weight: 750;
}

.question-image-wrap.image-error::after {
  content: "Image unavailable";
}

.answer-list {
  display: grid;
  gap: var(--space-3);
}

.answer-option {
  display: grid;
  width: 100%;
  min-height: 68px;
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: center;
  justify-content: stretch;
  gap: var(--space-4);
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  color: var(--color-text);
  text-align: left;
  box-shadow: var(--shadow-xs);
}

.answer-option:hover:not(:disabled) {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  box-shadow: 0 8px 24px rgba(36, 87, 245, 0.1);
}

.answer-option > strong {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--color-line);
  border-radius: 50%;
  background: var(--color-surface-soft);
  color: var(--color-muted);
  font-size: 0.82rem;
}

.answer-option > span {
  min-width: 0;
  font-size: 0.98rem;
  font-weight: 750;
  line-height: 1.45;
}

.answer-option.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  box-shadow: inset 4px 0 0 var(--color-primary);
}

.answer-option.selected > strong {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: var(--color-white);
}

.answer-option:disabled {
  opacity: 0.72;
}

.answer-option.correct,
.answer-option.correct.selected {
  border-color: var(--color-success);
  background: var(--color-success-soft);
  color: var(--color-text);
  opacity: 1;
  box-shadow: inset 4px 0 0 var(--color-success);
}

.answer-option.correct > strong {
  border-color: var(--color-success);
  background: var(--color-success);
  color: var(--color-white);
}

.answer-option.wrong,
.answer-option.wrong.selected {
  border-color: var(--color-danger);
  background: var(--color-danger-soft);
  opacity: 1;
  box-shadow: inset 4px 0 0 var(--color-danger);
}

.answer-option.wrong > strong {
  border-color: var(--color-danger);
  background: var(--color-danger);
  color: var(--color-white);
}

.signal-list,
.why-high-yield {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.signal-list span,
.why-high-yield span {
  border-radius: var(--radius-pill);
  padding: 0.3rem 0.55rem;
  background: #fff8dc;
  color: var(--color-warning);
  font-size: 0.68rem;
  font-weight: 800;
}

.feedback {
  display: grid;
  gap: var(--space-4);
  border: 1px solid rgba(8, 123, 87, 0.24);
  border-left: 5px solid var(--color-success);
  border-radius: var(--radius-md);
  margin-top: var(--space-6);
  padding: var(--space-5);
  background: var(--color-success-soft);
  animation: feedback-in var(--transition-slow) ease both;
}

.feedback.is-wrong {
  border-color: rgba(201, 52, 67, 0.24);
  border-left-color: var(--color-danger);
  background: var(--color-danger-soft);
}

.feedback-header {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: center;
  gap: var(--space-3);
}

.feedback-status-icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 50%;
  background: var(--color-success);
  color: var(--color-white);
  font-size: 0.68rem;
  font-weight: 900;
}

.feedback.is-wrong .feedback-status-icon {
  background: var(--color-danger);
}

.feedback-header strong {
  display: block;
  font-size: 1.15rem;
}

.feedback-header p,
.feedback-explanation,
.feedback-why,
.feedback-tip p,
.feedback-high-yield p {
  margin: 0;
  color: var(--color-muted);
}

.feedback-explanation {
  color: var(--color-text);
  font-weight: 700;
  line-height: 1.65;
}

.feedback-why,
.feedback-tip,
.feedback-high-yield,
.feedback-coach-visual,
.ai-explain-panel {
  border: 1px solid rgba(18, 20, 25, 0.11);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.76);
}

.feedback-coach-visual {
  display: grid;
  gap: var(--space-2);
  margin: 0;
}

.feedback-coach-visual img {
  width: 100%;
  max-height: 340px;
  border-radius: calc(var(--radius-sm) - 2px);
  object-fit: contain;
  background: var(--color-surface-soft);
}

.feedback-coach-visual figcaption {
  color: var(--color-muted);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.feedback-tip > strong,
.feedback-high-yield > strong {
  display: block;
  margin-bottom: var(--space-2);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.feedback-reason-list,
.ai-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.feedback-reason-list span,
.ai-tag-list span {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  border-radius: var(--radius-pill);
  padding: 0.35rem 0.6rem;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.7rem;
}

.feedback-reason-list em {
  color: var(--color-muted);
  font-style: normal;
}

.feedback-next-actions,
.preview-answer-actions,
.question-actions,
.question-nav-actions,
.paywall-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.feedback-next-actions button {
  min-width: 140px;
}

.ai-explain {
  display: grid;
  gap: var(--space-3);
}

.ai-explain-btn {
  width: fit-content;
  border-color: var(--color-text);
  background: var(--color-text);
  color: var(--color-accent-lime);
}

.ai-explain-panel {
  display: grid;
  gap: var(--space-4);
}

.ai-explain-panel.cached {
  border-color: rgba(36, 87, 245, 0.25);
  background: var(--color-primary-soft);
}

.ai-explain-panel.fallback {
  border-color: rgba(255, 200, 61, 0.45);
  background: #fff9e5;
}

.ai-explain-section strong,
.ai-explain-meta {
  display: block;
  margin-bottom: var(--space-1);
  font-size: 0.76rem;
  text-transform: uppercase;
}

.ai-explain-section p,
.ai-explain-note {
  margin: 0;
  color: var(--color-muted);
}

.preview-answer-cta {
  display: grid;
  gap: var(--space-3);
  border-top: 1px solid var(--color-line);
  padding-top: var(--space-4);
}

.question-actions {
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--color-line);
  margin-top: var(--space-6);
  padding-top: var(--space-5);
}

.flag-btn.flagged {
  border-color: var(--color-accent-amber);
  background: #fff8dc;
  color: var(--color-warning);
}

.target-ring {
  display: grid;
  width: 88px;
  height: 88px;
  flex: 0 0 88px;
  place-content: center;
  border-radius: 50%;
  background: conic-gradient(var(--color-primary) var(--progress-angle, 0deg), var(--color-line) 0deg);
  box-shadow: inset 0 0 0 10px var(--color-surface);
  text-align: center;
}

.target-ring span {
  font-size: 1rem;
  font-weight: 900;
}

.target-ring small {
  color: var(--color-muted);
  font-size: 0.62rem;
  font-weight: 800;
  text-transform: uppercase;
}

.today-plan-main {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.today-plan-copy p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.82rem;
  font-weight: 650;
}

.meter {
  height: 7px;
  overflow: hidden;
  border-radius: var(--radius-pill);
  margin-top: var(--space-4);
  background: var(--color-line);
}

.meter span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--color-primary);
  transition: width var(--transition-slow);
}

.next-action-card {
  display: grid;
  gap: var(--space-1);
  border-left: 4px solid var(--color-accent-coral);
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-3) var(--space-3) var(--space-4);
  background: var(--color-surface-soft);
}

.next-action-card > span {
  color: var(--color-muted);
  font-size: 0.64rem;
  font-weight: 850;
  text-transform: uppercase;
}

.next-action-card strong {
  font-size: 0.84rem;
}

.next-action-card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.74rem;
}

.unlock-panel {
  border-color: var(--color-ink);
  background: var(--color-ink);
  color: var(--color-white);
}

.unlock-panel .section-label,
.unlock-panel .panel-heading > span {
  color: var(--color-accent-lime);
}

.unlock-panel .panel-heading > span {
  background: rgba(216, 255, 95, 0.12);
}

.unlock-panel p {
  color: #c5c9d2;
  font-size: 0.82rem;
}

.unlock-panel #checkoutBtn {
  width: 100%;
  border-color: var(--color-accent-lime);
  background: var(--color-accent-lime);
  color: var(--color-text);
}

.restore-access-link,
.nav-restore-link {
  color: inherit;
  font-weight: 800;
}

.compact-restore-link {
  display: block;
  margin-top: var(--space-3);
  color: var(--color-white);
  font-size: 0.76rem;
  text-align: center;
}

.referral-form {
  display: grid;
  gap: var(--space-2);
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
}

.referral-form .field > span {
  color: inherit;
}

.referral-form button {
  min-height: 40px;
}

.referral-status,
.pricing-plan-status {
  min-height: 0;
  margin: 0;
  font-size: 0.72rem;
}

.restore-form {
  display: grid;
  gap: var(--space-4);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-strong);
}

.restore-card-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.restore-card-heading strong {
  display: block;
  font-size: 1.35rem;
}

.restore-close-btn {
  min-height: 36px;
  padding-inline: var(--space-3);
  font-size: 0.76rem;
}

.restore-form > p {
  margin: 0;
  color: var(--color-muted);
}

.restore-status {
  display: grid;
  gap: 2px;
  border-left: 4px solid var(--color-primary);
  padding: var(--space-3);
  background: var(--color-primary-soft);
  font-size: 0.76rem;
}

.restore-status span {
  color: var(--color-muted);
}

.restore-status.sent,
.restore-status.success {
  border-left-color: var(--color-success);
  background: var(--color-success-soft);
}

.restore-status.error,
.restore-status.rate-limited {
  border-left-color: var(--color-danger);
  background: var(--color-danger-soft);
}

.restore-focus-active::after {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background: rgba(18, 20, 25, 0.72);
  content: "";
  backdrop-filter: blur(6px);
}

.restore-focus-active .restore-form {
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: var(--z-modal);
  width: min(calc(100vw - 32px), 480px);
  max-height: calc(100vh - 40px);
  overflow: auto;
  transform: translate(-50%, -50%);
}

.study-flow-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.study-flow-list li {
  position: relative;
  display: grid;
  gap: 2px;
  border-left: 2px solid var(--color-line);
  padding: 0 0 var(--space-5) var(--space-5);
}

.study-flow-list li:last-child {
  padding-bottom: 0;
}

.study-flow-list li::before {
  position: absolute;
  top: 1px;
  left: -7px;
  width: 12px;
  height: 12px;
  border: 2px solid var(--color-line-strong);
  border-radius: 50%;
  background: var(--color-surface);
  content: "";
}

.study-flow-list li[data-state="in-progress"] {
  border-left-color: var(--color-primary);
}

.study-flow-list li[data-state="in-progress"]::before {
  border-color: var(--color-primary);
  background: var(--color-primary);
}

.study-flow-list li[data-state="done"] {
  border-left-color: var(--color-success);
}

.study-flow-list li[data-state="done"]::before {
  border-color: var(--color-success);
  background: var(--color-success);
}

.flow-state {
  width: fit-content;
  color: var(--color-subtle);
  font-size: 0.6rem;
  font-weight: 850;
  text-transform: uppercase;
}

.study-flow-list strong {
  font-size: 0.82rem;
}

.study-flow-list p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.72rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
  margin: 0;
}

.stats-grid div {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  background: var(--color-surface-soft);
}

.stats-grid dt {
  color: var(--color-muted);
  font-size: 0.65rem;
  font-weight: 800;
}

.stats-grid dd {
  margin: var(--space-1) 0 0;
  font-size: 1.15rem;
  font-weight: 900;
}

.category-summary {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.category-summary-overview {
  display: grid;
  gap: var(--space-2);
}

.category-highlight-card,
.category-summary-row {
  display: grid;
  gap: 2px;
  border-left: 3px solid var(--color-primary);
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface-soft);
}

.category-highlight-card span,
.category-summary-row span {
  color: var(--color-muted);
  font-size: 0.64rem;
}

.category-highlight-card strong,
.category-summary-row strong {
  overflow-wrap: anywhere;
  font-size: 0.76rem;
}

.category-highlight-card em,
.category-summary-row em,
.category-summary-empty {
  color: var(--color-muted);
  font-size: 0.64rem;
  font-style: normal;
}

.paywall-view {
  border-color: var(--color-ink);
  padding: 0;
  background: var(--color-ink);
  color: var(--color-white);
  animation: paywall-in var(--transition-slow) ease both;
}

.paywall-view::before {
  background: linear-gradient(90deg, var(--color-accent-lime), var(--color-accent-coral), var(--color-primary));
}

.paywall-shell {
  display: grid;
  gap: var(--space-6);
  padding: var(--space-8);
}

.paywall-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: var(--space-8);
}

.premium-chip {
  border-color: rgba(216, 255, 95, 0.45);
  background: rgba(216, 255, 95, 0.12);
  color: var(--color-accent-lime);
}

.paywall-hero h2 {
  max-width: 680px;
  margin: var(--space-4) 0 var(--space-3);
  font-size: 3.35rem;
  font-weight: 950;
  line-height: 1;
}

.paywall-hero p {
  max-width: 720px;
  margin: 0;
  color: #cbd0da;
  font-size: 1rem;
}

.paywall-price {
  display: grid;
  min-width: 150px;
  gap: 2px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  background: var(--color-accent-lime);
  color: var(--color-text);
  text-align: right;
}

.paywall-price span,
.paywall-price small {
  font-size: 0.68rem;
  font-weight: 850;
  text-transform: uppercase;
}

.paywall-price strong {
  font-size: 1.8rem;
}

.paywall-value-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  border-block: 1px solid rgba(255, 255, 255, 0.15);
  padding-block: var(--space-4);
}

.paywall-value-line strong {
  margin-right: auto;
}

.paywall-value-line span {
  border-radius: var(--radius-pill);
  padding: 0.35rem 0.6rem;
  background: rgba(255, 255, 255, 0.1);
  color: #d9dde5;
  font-size: 0.7rem;
  font-weight: 800;
}

.paywall-comparison {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: var(--space-3);
}

.paywall-tier {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  background: rgba(255, 255, 255, 0.055);
}

.paywall-tier.full-tier {
  border-color: rgba(216, 255, 95, 0.38);
  background: rgba(216, 255, 95, 0.08);
}

.paywall-tier-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.paywall-tier-header span {
  color: #aeb5c2;
  font-size: 0.7rem;
  font-weight: 850;
  text-transform: uppercase;
}

.paywall-tier-header strong {
  font-size: 0.78rem;
}

.paywall-tier ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin: var(--space-5) 0 0;
  padding: 0;
  list-style: none;
}

.paywall-tier.free-tier ul {
  grid-template-columns: 1fr;
}

.paywall-tier li {
  position: relative;
  padding-left: 26px;
  color: #edf0f5;
  font-size: 0.8rem;
  font-weight: 700;
}

.paywall-tier li::before {
  position: absolute;
  top: 1px;
  left: 0;
  display: grid;
  width: 18px;
  height: 18px;
  place-items: center;
  border-radius: 50%;
  background: var(--color-accent-mint);
  color: var(--color-text);
  content: "OK";
  font-size: 0.45rem;
  font-weight: 950;
}

.paywall-trust {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.65fr);
  gap: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: var(--space-5);
}

.paywall-trust p {
  margin: var(--space-1) 0 0;
  color: #aeb5c2;
  font-size: 0.76rem;
}

.paywall-trust .referral-form {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  border-top: 0;
  margin: 0;
  padding: 0;
}

.paywall-trust .referral-status {
  grid-column: 1 / -1;
}

.paywall-actions {
  align-items: center;
}

.paywall-actions .paywall-checkout-btn {
  min-width: 220px;
  border-color: var(--color-accent-lime);
  background: var(--color-accent-lime);
  color: var(--color-text);
}

.paywall-actions a {
  color: #d7dbe3;
  font-size: 0.78rem;
}

.result-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  border-bottom: 1px solid var(--color-line);
  padding: var(--space-3) 0;
}

.empty-state,
.loading-state {
  display: flex;
  min-height: 260px;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  color: var(--color-muted);
  text-align: center;
}

.loading-spinner {
  width: 22px;
  height: 22px;
  border: 3px solid var(--color-line);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}

.question-skeleton .loading-state {
  min-height: 70px;
  justify-content: flex-start;
}

.skeleton-pill-row {
  display: flex;
  gap: var(--space-2);
}

.skeleton-pill,
.skeleton-line,
.skeleton-card,
.admin-skeleton-card,
.admin-skeleton-list .skeleton-card {
  display: block;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: #e8eaf0;
  animation: skeleton-pulse 1.3s ease-in-out infinite;
}

.skeleton-pill {
  width: 120px;
  height: 28px;
  border-radius: var(--radius-pill);
}

.skeleton-pill.short {
  width: 76px;
}

.skeleton-line {
  width: 100%;
  height: 18px;
  margin-top: var(--space-4);
}

.skeleton-line.title {
  width: 78%;
  height: 40px;
}

.skeleton-line.medium {
  width: 54%;
}

.question-skeleton-options {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.question-skeleton-options .skeleton-card {
  height: 68px;
}

button.is-loading,
.button-primary.is-loading {
  position: relative;
  color: transparent !important;
}

button.is-loading::after,
.button-primary.is-loading::after {
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  color: var(--color-white);
  content: "";
  animation: spin 650ms linear infinite;
}

.celebration-toast {
  position: fixed;
  right: var(--space-5);
  bottom: var(--space-5);
  z-index: var(--z-modal);
  width: min(360px, calc(100vw - 32px));
  border: 1px solid rgba(216, 255, 95, 0.5);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  background: var(--color-ink);
  color: var(--color-white);
  box-shadow: var(--shadow-strong);
  animation: toast-in var(--transition-slow) ease both;
}

.celebration-toast strong {
  color: var(--color-accent-lime);
}

.celebration-toast p {
  margin: var(--space-1) 0 0;
  color: #cbd0da;
}

.celebration-toast.is-hiding {
  opacity: 0;
  transform: translateY(8px);
}

.mobile-sticky-cta {
  display: none;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(260px, 1.2fr) repeat(2, minmax(150px, 0.5fr));
  gap: var(--space-8);
  border-top: 1px solid var(--color-line-strong);
  margin-top: var(--space-12);
  padding: var(--space-8) var(--space-2) var(--space-4);
  color: var(--color-muted);
}

.footer-brand p {
  max-width: 430px;
  margin: var(--space-4) 0 0;
}

.site-footer nav {
  display: grid;
  align-content: start;
  gap: var(--space-2);
}

.site-footer nav strong {
  margin-bottom: var(--space-2);
  color: var(--color-text);
  font-size: 0.76rem;
  text-transform: uppercase;
}

.site-footer nav a {
  width: fit-content;
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
}

.site-footer nav a:hover {
  color: var(--color-primary);
}

.footer-disclaimer {
  grid-column: 1 / -1;
  border-top: 1px solid var(--color-line);
  margin: 0;
  padding-top: var(--space-4);
  font-size: 0.75rem;
}

/* SEO and public landing pages */
.seo-shell,
.legal-shell,
.admin-shell {
  width: min(100%, 1320px);
}

.seo-topbar,
.legal-header,
.admin-topbar {
  margin-bottom: var(--space-4);
}

.seo-topbar .brand-mark,
.legal-header .brand-mark {
  gap: var(--space-3);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-5) 0 var(--space-3);
  color: var(--color-muted);
  font-size: 0.76rem;
  font-weight: 750;
}

.breadcrumbs a {
  color: var(--color-primary);
  text-decoration: none;
}

.breadcrumbs span::before {
  margin-right: var(--space-2);
  color: var(--color-line-strong);
  content: "/";
}

.seo-main {
  display: grid;
  gap: 0;
}

.seo-hero {
  position: relative;
  min-height: 410px;
  overflow: hidden;
  border-radius: var(--radius-md);
  padding: var(--space-12);
  background-color: var(--color-ink);
  background-image: url("./data/assets/img/quiz-img/a_0P6qm.png");
  background-position: calc(100% - 56px) center;
  background-repeat: no-repeat;
  background-size: 34% auto;
  color: var(--color-white);
}

.seo-hero::after {
  position: absolute;
  inset: auto 0 0 auto;
  width: 34%;
  height: 8px;
  background: var(--color-accent-coral);
  content: "";
}

.seo-hero-content {
  position: relative;
  z-index: var(--z-raised);
  width: 61%;
}

.seo-hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: 3.8rem;
  font-weight: 950;
  line-height: 1.02;
  text-transform: none;
}

.seo-hero p {
  max-width: 720px;
  margin: var(--space-5) 0 0;
  color: #d8dce5;
  font-size: 1.05rem;
}

.seo-hero .hero-disclaimer {
  color: #aeb4c1;
  font-size: 0.76rem;
}

.seo-cta-row .button-primary {
  border-color: var(--color-accent-lime);
  background: var(--color-accent-lime);
  color: var(--color-text);
}

.seo-cta-row .button-secondary {
  border-color: rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-white);
}

.seo-band,
.seo-card-band,
.seo-flow-band,
.seo-related-band,
.sample-practice,
.related-articles,
.faq-section {
  border-bottom: 1px solid var(--color-line);
  padding: var(--space-12) var(--space-4);
  background: transparent;
}

.seo-band:nth-of-type(even),
.seo-card-band:nth-of-type(even) {
  background: rgba(255, 255, 255, 0.46);
}

.seo-card-band > section {
  max-width: 900px;
  margin: 0 auto var(--space-8);
}

.seo-card-band > section:last-child {
  margin-bottom: 0;
}

.seo-band h2,
.seo-card-band h2,
.seo-flow-card h2,
.seo-cta-strip h2,
.faq-section > h2,
.related-articles > h2 {
  margin: 0 0 var(--space-4);
  font-size: 2rem;
  line-height: 1.12;
}

.seo-band p,
.seo-card-band p,
.seo-flow-band p,
.seo-cta-strip p {
  color: var(--color-muted);
  line-height: 1.75;
}

.seo-benefit-grid,
.seo-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
}

.seo-feature-card,
.seo-feature,
.pricing-plan-card {
  position: relative;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  background: var(--color-surface);
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.seo-feature-card::before,
.seo-feature::before {
  display: block;
  width: 34px;
  height: 6px;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-5);
  background: var(--color-primary);
  content: "";
}

.seo-feature-card:nth-child(2)::before,
.seo-feature:nth-child(2)::before {
  background: var(--color-accent-coral);
}

.seo-feature-card:nth-child(3)::before,
.seo-feature:nth-child(3)::before {
  background: var(--color-accent-amber);
}

.seo-feature-card:nth-child(4)::before,
.seo-feature:nth-child(4)::before {
  background: var(--color-success);
}

.seo-feature-card:hover,
.seo-feature:hover,
.pricing-plan-card:hover {
  border-color: var(--color-line-strong);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.seo-feature-card h2,
.seo-feature-card strong,
.seo-feature h2,
.seo-feature strong {
  display: block;
  margin: 0 0 var(--space-3);
  font-size: 1.25rem;
  line-height: 1.2;
}

.seo-feature-card p,
.seo-feature p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.65;
}

.sample-practice ol,
.seo-flow-card ol {
  display: grid;
  gap: var(--space-3);
  max-width: 860px;
  margin: var(--space-5) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.sample-practice li,
.seo-flow-card li {
  position: relative;
  border-left: 2px solid var(--color-line-strong);
  padding: 0 0 var(--space-5) var(--space-10);
  counter-increment: steps;
}

.sample-practice li::before,
.seo-flow-card li::before {
  position: absolute;
  top: -2px;
  left: -18px;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  content: counter(steps);
  font-size: 0.76rem;
  font-weight: 900;
}

.seo-link-grid,
.seo-link-list,
.seo-footer-links nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
}

.seo-link-grid a,
.seo-link-list a,
.seo-footer-links a {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.82rem;
  font-weight: 750;
  text-decoration: none;
}

.seo-link-grid a:hover,
.seo-link-list a:hover,
.seo-footer-links a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.faq-section {
  display: grid;
  gap: var(--space-2);
}

.faq-section details {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  background: var(--color-surface);
}

.faq-section summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  cursor: pointer;
  font-weight: 850;
}

.faq-section summary::after {
  color: var(--color-primary);
  content: "+";
  font-size: 1.2rem;
}

.faq-section details[open] summary::after {
  content: "-";
}

.faq-section details p {
  margin: var(--space-3) 0 0;
}

.seo-cta-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  border-radius: var(--radius-md);
  margin-top: var(--space-8);
  padding: var(--space-8);
  background: var(--color-primary);
  color: var(--color-white);
}

.seo-cta-strip h2 {
  max-width: 760px;
}

.seo-cta-strip p {
  margin-bottom: 0;
  color: #dce5ff;
}

.seo-cta-strip .seo-cta-row {
  flex: 0 0 auto;
  margin-top: 0;
}

.seo-footer {
  display: block;
}

.seo-footer-links h2 {
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

.seo-footer > p {
  margin: var(--space-6) 0 0;
  font-size: 0.75rem;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
}

.pricing-plan-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.pricing-plan-card:nth-child(3) {
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.pricing-plan-card h2 {
  margin: 0 0 var(--space-2);
  font-size: 1.15rem;
}

.pricing-plan-card > strong {
  display: block;
  margin-bottom: var(--space-3);
  font-size: 2rem;
  line-height: 1;
}

.pricing-plan-card p {
  color: var(--color-muted);
  font-size: 0.82rem;
}

.pricing-plan-card button,
.pricing-plan-card > .button-primary,
.pricing-plan-card > .button-secondary {
  width: 100%;
  margin-top: auto;
}

/* Legal and trust pages */
.legal-header {
  padding-inline: var(--space-4);
}

.legal-header p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.78rem;
}

.legal-header > a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  font-weight: 900;
  text-decoration: none;
}

.legal-header > a::before {
  display: grid;
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  place-items: center;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: var(--color-accent-lime);
  content: "TC";
  font-size: 0.72rem;
  font-weight: 950;
}

.legal-page {
  max-width: 900px;
  margin: var(--space-8) auto;
  padding: var(--space-10);
  background: var(--color-surface);
  box-shadow: var(--shadow-xs);
}

.legal-page h1 {
  margin: 0 0 var(--space-8);
  font-size: 3rem;
  line-height: 1.05;
}

.legal-page section {
  border-top: 1px solid var(--color-line);
  padding: var(--space-6) 0;
}

.legal-page h2 {
  margin-bottom: var(--space-3);
  font-size: 1.25rem;
}

.legal-page p,
.legal-page li {
  color: var(--color-muted);
  line-height: 1.75;
}

.legal-page a {
  color: var(--color-primary);
  font-weight: 750;
}

/* Admin */
.admin-topbar h1 {
  margin: 0;
  font-size: 1.8rem;
}

.admin-topbar .eyebrow {
  margin-bottom: 2px;
}

.admin-layout {
  display: grid;
  gap: var(--space-4);
}

.admin-protected {
  display: flex;
  min-height: 250px;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  border-color: var(--color-ink);
  padding: var(--space-10);
  background: var(--color-ink);
  color: var(--color-white);
}

.admin-protected h2 {
  margin: var(--space-2) 0;
  font-size: 2.5rem;
}

.admin-protected p {
  margin: 0;
  color: #c7ccd5;
}

.admin-protected-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.admin-protected-actions .button-primary {
  border-color: var(--color-accent-lime);
  background: var(--color-accent-lime);
  color: var(--color-text);
}

.admin-grid,
.metric-grid,
.launch-readiness-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
}

.admin-grid-thirds {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.admin-section {
  min-width: 0;
  padding: var(--space-5);
}

.admin-section h3 {
  margin: 0 0 var(--space-4);
  font-size: 1.05rem;
}

.admin-section-note,
.admin-review-note {
  color: var(--color-muted);
  font-size: 0.78rem;
}

.admin-form {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
  align-items: end;
}

.admin-form-wide {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.admin-form-stack,
.admin-draft-grid {
  display: grid;
  gap: var(--space-3);
}

.admin-list,
.generated-question-list {
  display: grid;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.admin-item {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  background: var(--color-surface-soft);
}

.admin-item:hover {
  border-color: var(--color-line-strong);
  background: var(--color-surface);
}

.admin-item-heading,
.admin-badge-row,
.review-editor-heading,
.review-actions,
.admin-export-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.admin-item dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
  margin: var(--space-3) 0 0;
}

.admin-item dt {
  color: var(--color-muted);
  font-size: 0.68rem;
  font-weight: 800;
}

.admin-item dd {
  margin: var(--space-1) 0 0;
  overflow-wrap: anywhere;
  font-size: 0.82rem;
}

.admin-status-badge {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-pill);
  padding: 0.25rem 0.55rem;
  background: var(--color-surface-soft);
  color: var(--color-muted);
  font-size: 0.65rem;
  font-weight: 850;
  text-transform: uppercase;
}

.admin-status-badge.success {
  background: var(--color-success-soft);
  color: var(--color-success);
}

.admin-status-badge.warning {
  background: #fff8dc;
  color: var(--color-warning);
}

.admin-status-badge.danger {
  background: var(--color-danger-soft);
  color: var(--color-danger);
}

.admin-status-badge.primary,
.admin-status-badge.info {
  background: var(--color-primary-soft);
  color: var(--color-primary-strong);
}

.admin-empty-state {
  display: grid;
  min-height: 130px;
  place-content: center;
  border: 1px dashed var(--color-line-strong);
  border-radius: var(--radius-sm);
  padding: var(--space-5);
  color: var(--color-muted);
  text-align: center;
}

.admin-empty-state p {
  margin: var(--space-2) 0 0;
}

.admin-table-wrap {
  overflow: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
}

.admin-table th,
.admin-table td {
  border-bottom: 1px solid var(--color-line);
  padding: var(--space-3);
  text-align: left;
  vertical-align: top;
}

.admin-table th {
  background: var(--color-surface-soft);
  color: var(--color-muted);
  font-size: 0.68rem;
  text-transform: uppercase;
}

.admin-question-row {
  cursor: pointer;
}

.admin-question-row:hover,
.admin-question-row:focus {
  background: var(--color-primary-soft);
}

.admin-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.admin-tag-list span {
  border-radius: var(--radius-pill);
  padding: 0.2rem 0.45rem;
  background: var(--color-surface-soft);
  font-size: 0.65rem;
}

.admin-locked .admin-section,
.admin-locked .admin-grid,
.admin-locked #refreshBtn {
  display: none;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes skeleton-pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

@keyframes feedback-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes paywall-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1180px) {
  .hero-panel {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.68fr);
    padding: var(--space-10);
  }

  .hero-copy h1 {
    font-size: 3.7rem;
  }

  .layout {
    grid-template-columns: 220px minmax(0, 1fr);
  }

  .coach-rail {
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .coach-rail .stats-panel {
    grid-column: 1 / -1;
  }

  .seo-benefit-grid,
  .seo-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .admin-grid,
  .metric-grid,
  .launch-readiness-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .mode-card em {
    font-size: 0;
  }

  .mode-card em::after {
    content: "Plus";
    font-size: 0.58rem;
  }
}

@media (max-width: 920px) {
  .shell {
    padding: var(--space-3);
  }

  .site-nav {
    max-width: 44vw;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .site-nav a {
    white-space: nowrap;
  }

  .nav-restore-link {
    display: none;
  }

  .hero-panel {
    min-height: 350px;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: var(--space-6);
    padding: var(--space-8);
  }

  .hero-copy h1 {
    font-size: 3.15rem;
  }

  .hero-visual-body {
    grid-template-columns: 1fr;
  }

  .hero-visual-body img {
    max-height: 150px;
    object-fit: contain;
  }

  .hero-visual-body > div p {
    display: none;
  }

  .seo-hero {
    background-position: calc(100% - 26px) center;
    background-size: 38% auto;
  }

  .seo-hero-content {
    width: 62%;
  }

  .seo-hero h1 {
    font-size: 3.15rem;
  }

  .pricing-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  body.has-mobile-sticky-cta {
    padding-bottom: calc(84px + env(safe-area-inset-bottom));
  }

  .app-nav {
    min-height: 60px;
  }

  .brand-copy small,
  .nav-actions,
  .app-nav .site-nav {
    display: none;
  }

  .hero-panel {
    min-height: 0;
    grid-template-columns: 1fr;
    padding: var(--space-5);
  }

  .hero-copy h1 {
    font-size: 2.2rem;
    line-height: 1.02;
  }

  .hero-subheading {
    margin-top: var(--space-3);
    font-size: 0.9rem;
  }

  .hero-actions {
    margin-top: var(--space-4);
  }

  .hero-actions a,
  .hero-actions button {
    flex: 1 1 0;
  }

  .hero-disclaimer {
    margin-top: var(--space-3);
  }

  .hero-visual {
    display: none;
  }

  .hero-stats,
  .trust-strip {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }

  .hero-stats::-webkit-scrollbar,
  .trust-strip::-webkit-scrollbar {
    display: none;
  }

  .hero-stats div,
  .trust-strip div {
    min-width: 154px;
    scroll-snap-align: start;
  }

  .layout {
    display: flex;
    flex-direction: column;
  }

  .workspace {
    order: 1;
    width: 100%;
  }

  .sidebar {
    order: 2;
    width: 100%;
  }

  .coach-rail {
    order: 3;
    display: grid;
    width: 100%;
    grid-template-columns: 1fr;
  }

  .coach-rail .stats-panel {
    grid-column: auto;
  }

  .mode-panel {
    display: none;
  }

  .mobile-mode-rail {
    display: flex;
    gap: var(--space-2);
    overflow-x: auto;
    border-block: 1px solid var(--color-line);
    padding: var(--space-3) 0;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
  }

  .mobile-mode-rail::-webkit-scrollbar {
    display: none;
  }

  .mobile-mode-rail button {
    position: relative;
    display: grid;
    min-width: 128px;
    min-height: 58px;
    flex: 0 0 auto;
    align-content: center;
    justify-items: start;
    gap: 1px;
    border-color: var(--color-line);
    padding: var(--space-2) var(--space-3);
    background: var(--color-surface);
    scroll-snap-align: start;
  }

  .mobile-mode-rail button strong {
    font-size: 0.82rem;
  }

  .mobile-mode-rail button span {
    color: var(--color-muted);
    font-size: 0.66rem;
    font-weight: 650;
  }

  .mobile-mode-rail button.active {
    border-color: var(--color-primary);
    background: var(--color-primary-soft);
    color: var(--color-primary-strong);
    box-shadow: inset 0 -3px 0 var(--color-primary);
  }

  .mobile-mode-rail em {
    position: absolute;
    top: 5px;
    right: 5px;
  }

  .status-bar {
    display: none;
  }

  .workspace > .insight-bar {
    display: none;
  }

  .question-view {
    padding: var(--space-5);
  }

  .question-title {
    margin-bottom: var(--space-6);
    font-size: 1.75rem;
  }

  .question-actions {
    align-items: stretch;
  }

  .flag-btn {
    flex: 1 1 100%;
  }

  .question-nav-actions {
    display: grid;
    width: 100%;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .question-nav-actions .finish-exam-inline-btn {
    grid-column: 1 / -1;
  }

  .mobile-sticky-cta:not(.hidden) {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: var(--z-sticky);
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto;
    align-items: center;
    gap: var(--space-2);
    border-top: 1px solid var(--color-line-strong);
    padding: var(--space-2) var(--space-3) calc(var(--space-2) + env(safe-area-inset-bottom));
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 -12px 32px rgba(18, 20, 25, 0.12);
    backdrop-filter: blur(14px);
  }

  .mobile-bottom-progress {
    display: grid;
    min-width: 0;
  }

  .mobile-bottom-progress strong {
    font-size: 0.78rem;
  }

  .mobile-bottom-progress span {
    overflow: hidden;
    color: var(--color-muted);
    font-size: 0.64rem;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .mobile-sticky-cta button {
    min-height: 42px;
  }

  .mobile-sticky-cta a {
    padding: var(--space-2);
    font-size: 0.72rem;
    font-weight: 800;
    white-space: nowrap;
  }

  .site-footer {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .seo-topbar .site-nav {
    display: none;
  }

  .seo-hero {
    min-height: 380px;
    padding: var(--space-8) var(--space-6);
    background-position: right bottom 26px;
    background-size: 190px auto;
  }

  .seo-hero-content {
    width: 100%;
    padding-bottom: 120px;
  }

  .seo-hero h1 {
    font-size: 2.55rem;
  }

  .seo-hero p {
    font-size: 0.95rem;
  }

  .seo-band,
  .seo-card-band,
  .seo-flow-band,
  .seo-related-band,
  .sample-practice,
  .related-articles,
  .faq-section {
    padding: var(--space-8) 0;
  }

  .seo-cta-strip {
    display: grid;
    padding: var(--space-6);
  }

  .seo-cta-strip .seo-cta-row {
    width: 100%;
  }

  .seo-cta-strip .seo-cta-row a {
    flex: 1 1 0;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .admin-protected {
    display: grid;
    padding: var(--space-6);
  }

  .admin-form,
  .admin-form-wide {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .shell {
    padding: var(--space-2);
  }

  .app-header {
    gap: var(--space-2);
  }

  .app-nav,
  .seo-topbar,
  .legal-header,
  .admin-topbar {
    min-height: 56px;
    padding: var(--space-2);
  }

  .legal-header {
    display: grid;
    grid-template-columns: 1fr;
    justify-items: start;
    gap: var(--space-2);
    padding: var(--space-3);
  }

  .legal-header p {
    border-top: 1px solid var(--color-line);
    margin: 0;
    padding-top: var(--space-2);
  }

  .brand-symbol,
  .seo-topbar .brand-mark::before,
  .legal-header .brand-mark::before {
    width: 36px;
    height: 36px;
    flex-basis: 36px;
  }

  .hero-panel {
    padding: var(--space-4);
  }

  .hero-copy .eyebrow {
    margin-bottom: var(--space-2);
  }

  .hero-copy h1 {
    font-size: 2rem;
  }

  .hero-subheading {
    line-height: 1.45;
  }

  .hero-actions {
    display: grid;
    width: 100%;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-actions a,
  .hero-actions button {
    min-width: 0;
    padding-inline: var(--space-2);
    font-size: 0.78rem;
  }

  .hero-stats div,
  .trust-strip div {
    min-width: 136px;
    min-height: 62px;
  }

  .mobile-bottom-progress span {
    display: none;
  }

  .mobile-sticky-cta:not(.hidden) {
    gap: var(--space-1);
    padding-inline: var(--space-2);
  }

  .mobile-sticky-cta button {
    min-width: 76px;
    padding-inline: var(--space-3);
  }

  .mobile-sticky-cta a {
    padding-inline: var(--space-2);
  }

  .question-view {
    padding: var(--space-4);
  }

  .question-meta {
    align-items: flex-start;
    margin-bottom: var(--space-5);
  }

  .question-title {
    font-size: 1.55rem;
    line-height: 1.22;
  }

  .answer-option {
    min-height: 64px;
    grid-template-columns: 38px minmax(0, 1fr);
    gap: var(--space-3);
    padding: var(--space-3);
  }

  .answer-option > strong {
    width: 38px;
    height: 38px;
  }

  .answer-option > span {
    font-size: 0.9rem;
  }

  .feedback {
    padding: var(--space-4);
  }

  .feedback-next-actions button {
    min-width: 0;
    flex: 1 1 130px;
  }

  .paywall-shell {
    gap: var(--space-5);
    padding: var(--space-5);
  }

  .paywall-hero {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .paywall-hero h2 {
    font-size: 2.3rem;
  }

  .paywall-price {
    min-width: 0;
    width: 100%;
    grid-template-columns: 1fr auto;
    align-items: center;
    text-align: left;
  }

  .paywall-price small {
    grid-column: 1 / -1;
  }

  .paywall-comparison,
  .paywall-trust {
    grid-template-columns: 1fr;
  }

  .paywall-tier ul,
  .paywall-tier.full-tier ul {
    grid-template-columns: 1fr;
  }

  .paywall-trust .referral-form {
    grid-template-columns: 1fr;
  }

  .paywall-actions .paywall-checkout-btn {
    width: 100%;
  }

  .paywall-actions a {
    flex: 1 1 40%;
    text-align: center;
  }

  .site-footer {
    gap: var(--space-6);
    padding-inline: var(--space-2);
  }

  .seo-hero {
    min-height: 420px;
    padding: var(--space-6) var(--space-5);
    background-size: 150px auto;
  }

  .seo-hero h1 {
    font-size: 2.25rem;
  }

  .seo-hero-content {
    padding-bottom: 105px;
  }

  .seo-cta-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .seo-cta-row a {
    min-width: 0;
    padding-inline: var(--space-2);
    font-size: 0.76rem;
  }

  .seo-benefit-grid,
  .seo-grid,
  .seo-link-grid,
  .seo-link-list,
  .seo-footer-links nav,
  .admin-grid,
  .admin-grid-thirds,
  .metric-grid,
  .launch-readiness-grid {
    grid-template-columns: 1fr;
  }

  .legal-page {
    margin: var(--space-4) 0;
    padding: var(--space-5);
  }

  .legal-page h1 {
    font-size: 2.25rem;
  }

  .admin-topbar {
    align-items: flex-start;
  }

  .admin-topbar h1 {
    font-size: 1.45rem;
  }

  .admin-nav {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .admin-protected h2 {
    font-size: 2rem;
  }

  .admin-item dl {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
  }
}