.topic-hero {
  position: relative;
  overflow-x: clip;
  padding-top: clamp(52px, 8vw, 96px);
  padding-bottom: clamp(72px, 10vw, 124px);
}

.topic-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  width: 760px;
  height: 620px;
  top: -190px;
  left: calc(50% - 720px);
  border-radius: var(--radius-pill);
  background: radial-gradient(circle, rgba(var(--rgb-accent), .26), rgba(var(--rgb-accent), .08) 42%, transparent 70%);
  pointer-events: none;
}

.topic-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr);
  align-items: center;
  gap: clamp(44px, 8vw, 94px);
}

.topic-copy {
  min-width: 0;
}

.topic-copy .hero-eyebrow {
  margin-bottom: 22px;
}

.topic-copy h1 {
  max-width: 720px;
}

.topic-keyword {
  color: var(--color-accent);
}

.topic-lede {
  max-width: 670px;
  margin-top: 22px;
  color: var(--color-text-muted);
  font-size: clamp(16px, 1.8vw, 19px);
}

.topic-copy .hero-actions {
  justify-content: flex-start;
  margin-top: 28px;
  margin-bottom: 22px;
}

.topic-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
}

.topic-facts li {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 3px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11.5px;
}

.ai-console {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-panel);
  box-shadow: var(--shadow-near), var(--shadow-far);
}

.ai-console::before {
  content: "";
  display: block;
  height: 1px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-dark), transparent);
}

.console-bar {
  min-height: 44px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  padding-inline: 16px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .08em;
}

.console-dots {
  display: flex;
  gap: 7px;
}

.console-dots i {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-pill);
}

.console-dots i:first-child {
  background: var(--color-error);
}

.console-dots i:nth-child(2) {
  background: var(--color-warning);
}

.console-dots i:last-child {
  background: var(--color-success);
}

.console-state {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.console-state i {
  width: 7px;
  height: 7px;
  border-radius: var(--radius-pill);
  background: var(--color-warning);
  box-shadow: 0 0 0 3px rgba(var(--rgb-accent), .12);
}

.console-body {
  padding: clamp(22px, 4vw, 34px);
}

.console-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 24px minmax(0, 1fr) 24px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
}

.console-flow span {
  min-width: 0;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 9px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-panel-raised);
  color: var(--color-text);
  font-size: 12px;
  text-align: center;
}

.console-flow i {
  position: relative;
  height: 1px;
  background: var(--color-accent-dark);
}

.console-flow i::after {
  content: "";
  position: absolute;
  top: -3px;
  right: 0;
  width: 7px;
  height: 7px;
  border-top: 1px solid var(--color-accent);
  border-right: 1px solid var(--color-accent);
  transform: rotate(45deg);
}

.console-checks {
  display: grid;
  gap: 2px;
  margin-top: 24px;
}

.console-checks div {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(90px, .7fr) minmax(0, 1.3fr);
  gap: 18px;
  padding-top: 12px;
  padding-bottom: 12px;
  border-top: 1px solid rgba(var(--rgb-text), .08);
}

.console-checks dt {
  color: var(--color-text);
  font-size: 12.5px;
}

.console-checks dd {
  color: var(--color-text-muted);
  font-size: 12.5px;
}

.console-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.console-tools span {
  min-height: 27px;
  display: inline-flex;
  align-items: center;
  padding-inline: 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10.5px;
}

.ai-reading {
  max-width: 920px;
  padding-bottom: var(--section-space);
}

.ai-reading .toc-tabs {
  margin-bottom: clamp(72px, 10vw, 112px);
}

.article-section {
  padding-top: 20px;
  padding-bottom: var(--section-space);
}

.article-section h2 {
  max-width: 780px;
  margin-top: 10px;
}

.article-section > p {
  margin-top: 20px;
  color: var(--color-text-muted);
  font-size: 16px;
  line-height: 1.85;
}

.article-section > .callout {
  margin-top: 30px;
}

.reason-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 32px;
}

.reason-grid section {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-panel);
}

.reason-grid h3,
.compare-panels h3,
.workflow-list h3,
.account-note h3,
.final-check h3 {
  font-family: var(--font-body);
  font-size: 19px;
  font-weight: 550;
}

.reason-grid p,
.compare-panels li,
.workflow-list p {
  margin-top: 10px;
  color: var(--color-text-muted);
}

.ai-matrix {
  min-width: 840px;
}

.article-section .table-scroll {
  margin-top: 30px;
}

.account-note {
  display: grid;
  grid-template-columns: minmax(180px, .7fr) minmax(0, 1.4fr) auto;
  align-items: center;
  gap: 28px;
  margin-top: 32px;
  padding: clamp(24px, 4vw, 34px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-panel-raised);
}

.account-note h3 {
  margin-top: 8px;
}

.account-note > p {
  color: var(--color-text-muted);
}

.compare-panels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.compare-panels h3 {
  margin-top: 8px;
}

.compare-panels ul {
  display: grid;
  gap: 10px;
  margin-top: 20px;
  list-style: none;
}

.compare-panels li {
  position: relative;
  padding-left: 18px;
}

.compare-panels li::before {
  content: "";
  position: absolute;
  top: .72em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

.workflow-list {
  position: relative;
  display: grid;
  gap: 10px;
  margin-top: 32px;
}

.workflow-list::before {
  content: "";
  position: absolute;
  top: 28px;
  bottom: 28px;
  left: 12px;
  width: 1px;
  background: var(--color-border);
}

.workflow-list section {
  position: relative;
  min-width: 0;
  padding: 22px 24px 22px 46px;
  border-radius: var(--radius-large);
  background: var(--color-panel);
}

.workflow-list section::before {
  content: "";
  position: absolute;
  z-index: 1;
  top: 29px;
  left: 8px;
  width: 9px;
  height: 9px;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
}

.failure-list {
  display: grid;
  gap: 10px;
  margin-top: 32px;
}

.failure-list div {
  padding: 22px 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
}

.failure-list dt {
  color: var(--color-text);
  font-weight: 550;
}

.failure-list dd {
  margin-top: 8px;
  color: var(--color-text-muted);
}

.selection-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 34px;
}

.selection-link {
  min-width: 0;
  min-height: 104px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-panel);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.selection-link:hover {
  background: var(--color-panel-raised);
  transform: translateY(-2px);
}

.selection-link span {
  min-width: 0;
}

.selection-link small {
  display: block;
  margin-bottom: 6px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
}

.selection-link strong {
  display: block;
}

.selection-link > span:last-child {
  flex: 0 0 auto;
  color: var(--color-accent);
  font-size: 22px;
}

.final-check {
  display: grid;
  grid-template-columns: minmax(150px, .55fr) minmax(0, 1.45fr) auto;
  align-items: center;
  gap: 26px;
  margin-top: 46px;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-panel-raised);
  box-shadow: var(--shadow-near);
}

.final-check h3 {
  grid-column: 1;
  grid-row: 2;
  margin-top: 8px;
}

.final-check > .mono-label {
  grid-column: 1;
  grid-row: 1;
  align-self: end;
}

.final-check > p:not(.mono-label) {
  grid-column: 2;
  grid-row: 1 / span 2;
  color: var(--color-text-muted);
}

.final-check > .btn {
  grid-column: 3;
  grid-row: 1 / span 2;
}

@media (max-width: 900px) {
  .topic-hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .topic-copy {
    text-align: center;
  }

  .topic-copy h1,
  .topic-lede {
    margin-inline: auto;
  }

  .topic-copy .hero-actions,
  .topic-facts {
    justify-content: center;
  }

  .ai-console {
    width: min(100%, 680px);
    margin-inline: auto;
  }

  .account-note,
  .final-check {
    grid-template-columns: minmax(0, 1fr);
  }

  .account-note .btn,
  .final-check .btn {
    justify-self: start;
  }

  .final-check > .mono-label,
  .final-check > h3,
  .final-check > p:not(.mono-label),
  .final-check > .btn {
    grid-column: 1;
    grid-row: auto;
  }
}

@media (max-width: 768px) {
  .topic-hero {
    padding-top: 38px;
  }

  .topic-hero::before {
    width: 580px;
    height: 500px;
    top: -170px;
    left: calc(50% - 470px);
  }

  .reason-grid,
  .compare-panels,
  .selection-actions {
    grid-template-columns: minmax(0, 1fr);
  }

  .ai-reading .toc-tabs {
    margin-bottom: 62px;
  }

  .console-bar {
    grid-template-columns: auto 1fr;
  }

  .console-bar > span:nth-child(2) {
    justify-self: end;
  }

  .console-state {
    display: none;
  }
}

@media (max-width: 560px) {
  .topic-copy .hero-actions {
    align-items: stretch;
  }

  .topic-copy .hero-actions .btn {
    width: 100%;
  }

  .topic-facts {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .topic-facts li {
    justify-content: center;
  }

  .console-flow {
    grid-template-columns: minmax(0, 1fr);
  }

  .console-flow i {
    width: 1px;
    height: 20px;
    justify-self: center;
  }

  .console-flow i::after {
    top: auto;
    right: -3px;
    bottom: 0;
    transform: rotate(135deg);
  }

  .console-checks div {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .reason-grid section,
  .failure-list div,
  .workflow-list section {
    padding-right: 20px;
  }

  .account-note,
  .final-check {
    padding: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .selection-link {
    transition: none;
  }
}