.ai-hero {
  border-bottom: 1px solid var(--color-line);
  background: var(--color-canvas);
}

.ai-hero-grid {
  min-height: calc(100vh - var(--header-height));
  padding-top: clamp(58px, 8vw, 108px);
  padding-bottom: clamp(58px, 8vw, 108px);
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(440px, 1.08fr);
  gap: clamp(42px, 7vw, 92px);
  align-items: center;
}

.ai-hero-copy {
  min-width: 0;
}

.ai-hero-copy h1 {
  margin-top: 22px;
}

.ai-hero-copy .lead {
  max-width: 34em;
  margin-top: 24px;
  margin-bottom: 0;
}

.ai-hero-copy .button-row {
  margin-top: 30px;
}

.ai-fact-line {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ai-fact-line span {
  padding: 6px 10px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.ai-console {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--color-console-line);
  border-radius: var(--radius-md);
  background: var(--color-console);
  color: var(--color-console-text);
}

.ai-console-head,
.ai-console-foot {
  display: flex;
  align-items: center;
}

.ai-console-head {
  min-height: 56px;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--color-console-line);
  background: var(--color-console-raised);
}

.ai-console-title,
.ai-console-label,
.ai-console-foot {
  font-family: var(--font-mono);
}

.ai-console-title {
  min-width: 0;
  overflow-wrap: anywhere;
  color: var(--color-console-text);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .07em;
}

.ai-console-body {
  padding: clamp(24px, 4vw, 42px);
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(150px, .92fr);
  gap: clamp(24px, 4vw, 44px);
}

.ai-console-label {
  margin-bottom: 18px;
  color: var(--color-console-muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .1em;
}

.ai-signal-column,
.ai-tool-bank {
  min-width: 0;
}

.ai-check-item {
  min-height: 46px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--color-console-line);
  color: var(--color-console-text);
  font-size: 13px;
}

.ai-check-item:last-child {
  border-bottom: 0;
}

.ai-check-mark {
  position: relative;
  width: 30px;
  height: 7px;
  flex-shrink: 0;
  border-radius: var(--radius-xs);
  background: var(--color-console-groove);
}

.ai-check-mark::after {
  position: absolute;
  top: -3px;
  right: 3px;
  width: 9px;
  height: 13px;
  border-radius: var(--radius-xs);
  background: var(--color-accent);
  content: "";
}

.ai-tool-bank {
  display: flex;
  align-content: flex-start;
  flex-wrap: wrap;
  gap: 8px;
}

.ai-tool-bank .ai-console-label {
  width: 100%;
}

.ai-tool-bank span:not(.ai-console-label) {
  padding: 7px 9px;
  border: 1px solid var(--color-console-line);
  border-radius: var(--radius-xs);
  background: var(--color-console-raised);
  color: var(--color-console-text);
  font-family: var(--font-mono);
  font-size: 11px;
}

.ai-tool-bank span:nth-of-type(2),
.ai-tool-bank span:nth-of-type(5) {
  border-color: var(--color-warning);
  color: var(--color-warning);
}

.ai-console-foot {
  min-height: 52px;
  justify-content: space-around;
  gap: 12px;
  padding: 12px 18px;
  border-top: 1px solid var(--color-console-line);
  background: var(--color-console-raised);
  color: var(--color-console-muted);
  font-size: 10px;
  letter-spacing: .08em;
}

.ai-article {
  min-width: 0;
}

.ai-section-grid {
  display: grid;
  grid-template-columns: minmax(240px, .68fr) minmax(0, 1.32fr);
  gap: clamp(42px, 8vw, 104px);
  align-items: start;
}

.ai-section-grid .section-head {
  position: sticky;
  top: var(--toc-offset);
  margin-bottom: 0;
}

.ai-prose {
  max-width: none;
}

.ai-prose p {
  margin-bottom: 22px;
  font-size: 16px;
  line-height: 1.9;
}

.ai-prose h3 {
  margin-top: 38px;
  font-size: 23px;
}

.ai-panel-section {
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-panel);
}

.ai-tool-table {
  min-width: 820px;
}

.ai-tool-table td {
  line-height: 1.7;
}

.ai-tool-notes {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--color-line);
  background: var(--color-line);
}

.ai-tool-notes article {
  min-width: 0;
  padding: 26px;
  background: var(--color-canvas);
}

.ai-tool-notes .mono {
  color: var(--color-accent-dark);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
}

.ai-tool-notes h3 {
  margin-top: 14px;
  font-size: 21px;
}

.ai-tool-notes p {
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.8;
}

.ai-split-notes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.ai-note-card {
  min-width: 0;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
}

.ai-note-code {
  margin-bottom: 30px;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
}

.ai-note-card h3 {
  font-size: 27px;
}

.ai-note-card p:not(.ai-note-code) {
  color: var(--color-muted);
  line-height: 1.85;
}

.ai-diagnostic-list {
  border-top: 1px solid var(--color-line);
}

.ai-diagnostic-list article {
  padding-top: 27px;
  padding-bottom: 27px;
  display: grid;
  grid-template-columns: minmax(180px, .55fr) minmax(0, 1.45fr);
  gap: 30px;
  border-bottom: 1px solid var(--color-line);
}

.ai-diagnostic-key {
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 750;
}

.ai-diagnostic-list h3 {
  margin-bottom: 7px;
  font-size: 21px;
}

.ai-diagnostic-list p {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--color-muted);
  line-height: 1.8;
}

.ai-route-actions {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.ai-prose .ai-route-actions .btn-primary {
  color: var(--color-canvas);
  text-decoration: none;
}

.ai-prose .ai-route-actions .btn-secondary {
  color: var(--color-ink);
  text-decoration: none;
}

@media (max-width: 980px) {
  .ai-hero-grid,
  .ai-section-grid {
    grid-template-columns: 1fr;
  }

  .ai-hero-grid {
    min-height: 0;
  }

  .ai-console {
    max-width: 720px;
  }

  .ai-section-grid .section-head {
    position: static;
  }

  .ai-tool-notes {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .ai-console-body,
  .ai-split-notes {
    grid-template-columns: 1fr;
  }

  .ai-console-body {
    gap: 30px;
  }

  .ai-console-foot {
    justify-content: flex-start;
    overflow-x: auto;
  }

  .ai-console-foot span {
    flex: 0 0 auto;
  }

  .ai-diagnostic-list article {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

@media (max-width: 640px) {
  .ai-hero-grid {
    padding-top: 46px;
    padding-bottom: 58px;
  }

  .ai-hero-copy h1 {
    margin-top: 18px;
  }

  .ai-hero-copy .lead {
    margin-top: 18px;
    font-size: 17px;
  }

  .ai-console-head {
    align-items: flex-start;
  }

  .ai-fact-line {
    align-items: flex-start;
    flex-direction: column;
  }

  .ai-tool-notes article,
  .ai-note-card {
    padding: 22px 18px;
  }

  .ai-route-actions,
  .ai-route-actions .btn-primary,
  .ai-route-actions .btn-secondary {
    width: 100%;
  }
}