/* AI or Human? The Writing Test
   Scoped to this page. The passage sits on a paper sheet; the shell stays obsidian. */

.ah-page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 4.5rem;
  color: var(--text);
}

.ah-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin: 0.5rem 0 1.25rem;
  font-size: 0.85rem;
  color: var(--text-faint);
}

.ah-crumb a {
  color: var(--text-muted);
  text-decoration: none;
}

.ah-crumb a:hover {
  color: var(--primary-soft);
}

.ah-hero {
  position: static;
  top: auto;
  z-index: auto;
  max-width: 42rem;
  margin-bottom: 1.25rem;
  background: transparent;
  border: 0;
  box-shadow: none;
  backdrop-filter: none;
}

.ah-badge {
  display: inline-block;
  margin-bottom: 0.75rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--primary-soft);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.ah-hero h1,
.ah-prose h2,
.ah-faq h2,
.ah-related h2,
.ah-score-heading {
  margin: 0 0 0.45rem;
  font-family: var(--font-brand), Georgia, serif;
  font-weight: 600;
}

.ah-hero h1 {
  font-size: clamp(2.3rem, 6vw, 3.8rem);
  line-height: 0.96;
  letter-spacing: -0.03em;
}

.ah-rule {
  width: 4.5rem;
  height: 2px;
  margin: 0.85rem 0 1rem;
  background: var(--primary);
  border: 0;
}

.ah-hero p,
.ah-prose p,
.ah-faq p,
.ah-hint,
.ah-summary,
.ah-share {
  color: var(--text-muted);
  font-size: 1.02rem;
  line-height: 1.6;
}

.ah-hero p {
  margin: 0 0 0.9rem;
}

.ah-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ah-steps li {
  margin: 0;
  padding: 0.75rem 0.8rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.ah-steps strong {
  display: block;
  margin-bottom: 0.15rem;
  color: var(--text);
}

.ah-client {
  margin: 1.5rem 0 2rem;
}

.ah-status {
  max-width: 40rem;
  margin: 0 auto 0.75rem;
}

.ah-status p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.ah-status-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.35rem 1rem;
  margin-bottom: 0.65rem;
}

#ah-progress {
  color: var(--text);
  font-weight: 650;
}

.ah-gauge-block {
  padding: 0.75rem 0.85rem 0.8rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
}

.ah-gauge-head {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.45rem;
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 650;
}

#ah-gauge-value {
  font-variant-numeric: tabular-nums;
}

.ah-gauge-track {
  height: 10px;
  overflow: hidden;
  background: var(--bg);
  border-radius: 999px;
}

.ah-gauge-fill {
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, #f4efe4, var(--primary-soft));
  transition: width 180ms ease;
}

.ah-sheet {
  position: relative;
  max-width: 40rem;
  margin: 0 auto;
  padding: 1.8rem 1.45rem 1.3rem 1.7rem;
  color: #1c140e;
  background: linear-gradient(90deg, rgba(127, 29, 29, 0.16), rgba(127, 29, 29, 0) 16px), #f4efe4;
  border-radius: 2px 16px 16px 2px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.45),
    0 18px 50px rgba(0, 0, 0, 0.45);
}

.ah-sheet.is-fresh {
  animation: ah-in 180ms ease;
}

.ah-kicker {
  margin: 0 0 0.7rem;
  color: #7f1d1d;
  font-family: var(--font), system-ui, sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.ah-quote {
  margin: 0;
  padding: 0;
  border: 0;
}

.ah-passage {
  margin: 0;
  color: #1c140e;
  font-family: var(--font-brand), Georgia, serif;
  font-size: clamp(1.28rem, 2.4vw, 1.55rem);
  font-weight: 500;
  line-height: 1.45;
}

.ah-passage.is-prose::first-letter,
.ah-passage.is-description::first-letter,
.ah-passage.is-letter::first-letter {
  float: left;
  margin: 0.08em 0.08em 0 0;
  color: #7f1d1d;
  font-size: 3.15rem;
  line-height: 0.78;
}

.ah-passage.is-poetry {
  font-size: clamp(1.35rem, 2.6vw, 1.7rem);
  font-style: italic;
  line-height: 1.4;
  white-space: pre-line;
}

.ah-actions,
.ah-score-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
  margin-top: 1.25rem;
}

.ah-choice,
.ah-next,
.ah-copy,
.ah-again {
  min-height: 56px;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  font: inherit;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
}

.ah-choice {
  color: #1c140e;
  background: transparent;
  border: 1px solid rgba(28, 20, 14, 0.28);
}

.ah-human {
  color: #f4efe4;
  background: #1c140e;
  border-color: #1c140e;
}

.ah-choice:hover,
.ah-copy:hover {
  border-color: #7f1d1d;
}

.ah-judgement,
.ah-score-num,
.ah-accuracy-line,
.ah-copy-status {
  margin: 0.85rem 0 0;
  font-family: var(--font), system-ui, sans-serif;
  font-weight: 650;
}

.ah-judgement.is-right,
.ah-review li.is-right .ah-review-mark {
  color: #14532d;
}

.ah-judgement.is-wrong,
.ah-review li.is-wrong .ah-review-mark {
  color: #9f1239;
}

.ah-source,
.ah-summary,
.ah-accuracy-line {
  margin: 0.45rem 0 0;
  color: #3f3228;
  font-family: var(--font), system-ui, sans-serif;
  font-size: 0.98rem;
  line-height: 1.5;
}

.ah-source-label,
.ah-tells-label {
  display: block;
  margin-bottom: 0.15rem;
  color: #7f1d1d;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.ah-tells {
  margin-top: 0.9rem;
  padding: 0.8rem 0.85rem 0.7rem;
  background: rgba(28, 20, 14, 0.05);
  border-left: 3px solid #7f1d1d;
}

.ah-tell-list {
  margin: 0.2rem 0 0;
  padding-left: 1.1rem;
  color: #1c140e;
  font-family: var(--font), system-ui, sans-serif;
  font-size: 0.95rem;
  line-height: 1.45;
}

.ah-tell-list li + li {
  margin-top: 0.35rem;
}

.ah-note {
  margin: 0.65rem 0 0;
  color: #3f3228;
  font-family: var(--font), system-ui, sans-serif;
  font-size: 0.88rem;
  line-height: 1.45;
}

.ah-next,
.ah-again {
  color: #f4efe4;
  background: #7f1d1d;
  border: 1px solid #7f1d1d;
}

.ah-next {
  width: 100%;
  margin-top: 1rem;
}

.ah-copy {
  color: #1c140e;
  background: transparent;
  border: 1px solid rgba(28, 20, 14, 0.28);
}

.ah-score-heading {
  color: #1c140e;
}

.ah-copy-status {
  color: #3f3228;
}

.ah-score-num {
  color: #1c140e;
  font-family: var(--font-brand), Georgia, serif;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 600;
  line-height: 1;
}

.ah-share {
  margin-top: 0.8rem;
  padding: 0.75rem 0.8rem;
  color: #1c140e;
  background: rgba(28, 20, 14, 0.05);
  border-radius: 12px;
  overflow-wrap: anywhere;
}

.ah-review {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.ah-review li {
  display: grid;
  gap: 0.15rem;
  margin: 0;
  padding: 0.7rem 0;
  border-top: 1px solid rgba(28, 20, 14, 0.12);
}

.ah-review-mark {
  font-family: var(--font), system-ui, sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.ah-review-claim {
  color: #1c140e;
  font-family: var(--font-brand), Georgia, serif;
  font-size: 1.05rem;
  line-height: 1.35;
}

.ah-review-answer {
  color: #3f3228;
  font-family: var(--font), system-ui, sans-serif;
  font-size: 0.88rem;
}

.ah-choice:focus-visible,
.ah-next:focus-visible,
.ah-copy:focus-visible,
.ah-again:focus-visible,
.ah-passage:focus-visible,
.ah-judgement:focus-visible,
.ah-score-heading:focus-visible {
  outline: 2px solid #7f1d1d;
  outline-offset: 3px;
}

.ah-hint {
  max-width: 40rem;
  margin: 0.75rem auto 0;
  color: var(--text-faint);
  font-size: 0.88rem;
}

.ah-prose,
.ah-faq,
.ah-related {
  max-width: 42rem;
  margin: 2rem auto;
}

.ah-prose h3 {
  margin: 1.4rem 0 0.4rem;
  font-family: var(--font-brand), Georgia, serif;
  font-size: 1.35rem;
  font-weight: 600;
}

.ah-prose a,
.ah-faq a {
  color: var(--primary-soft);
}

.ah-sources {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--text-muted);
}

.ah-sources li {
  margin: 0.35rem 0;
  line-height: 1.45;
}

.ah-faq details {
  border-top: 1px solid var(--border);
}

.ah-faq summary {
  padding: 0.85rem 0;
  color: var(--text);
  font-weight: 650;
  cursor: pointer;
}

.ah-related-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

.ah-related-grid a {
  display: block;
  padding: 0.9rem 1rem;
  color: var(--text-muted);
  text-decoration: none;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
}

.ah-related-grid a:hover,
.ah-related-grid a:focus-visible {
  border-color: var(--primary-soft);
}

.ah-related-grid a:focus-visible {
  outline: 2px solid var(--primary-soft);
  outline-offset: 3px;
}

.ah-related-grid strong {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--text);
}

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

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

  to {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 700px) {
  .ah-page {
    padding: 1rem 0.9rem 4rem;
  }

  .ah-steps,
  .ah-related-grid,
  .ah-actions,
  .ah-score-actions {
    grid-template-columns: 1fr;
  }

  .ah-sheet {
    padding: 1.35rem 1rem 1.1rem 1.15rem;
  }

  .ah-passage.is-prose::first-letter,
  .ah-passage.is-description::first-letter,
  .ah-passage.is-letter::first-letter {
    font-size: 2.6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ah-sheet,
  .ah-sheet.is-fresh,
  .ah-gauge-fill,
  .ah-choice,
  .ah-next,
  .ah-copy,
  .ah-again {
    animation: none;
    transition: none;
  }
}