.topic-page {
  background: var(--page);
  color: var(--text);
}

.topic-page main {
  overflow: hidden;
}

.topic-hero {
  min-height: clamp(660px, 78vh, 780px);
  display: grid;
  align-items: center;
  padding: clamp(44px, 6vw, 76px) 0;
}

.topic-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(440px, 1.08fr);
  align-items: center;
  gap: clamp(40px, 7vw, 96px);
}

.topic-breadcrumb {
  margin-bottom: 24px;
  color: var(--subtle);
  font-size: 13px;
}

.topic-breadcrumb a {
  color: var(--muted);
}

.topic-hero h1 {
  max-width: 14ch;
  font-size: clamp(42px, 4.2vw, 58px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.035em;
}

.topic-hero h1 .keep-together {
  white-space: nowrap;
}

.topic-lead {
  max-width: 40rem;
  margin-top: 24px;
  color: var(--muted);
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.75;
}

.topic-hero .hero-actions {
  margin-top: 30px;
}

.topic-hero-media {
  position: relative;
  min-height: clamp(340px, 53vh, 560px);
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.32);
}

.topic-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(130deg, rgba(11, 14, 12, 0.08), transparent 52%, rgba(11, 14, 12, 0.32));
}

.topic-hero-media img {
  width: 100%;
  height: 100%;
  min-height: inherit;
  object-fit: cover;
}

.topic-hero-media img[src$="-board.svg"] {
  background: #111614;
  object-fit: contain;
}

.topic-answer {
  padding: clamp(40px, 5vw, 68px) 0;
  background: var(--accent);
  color: var(--accent-ink);
}

.topic-answer .section-shell {
  display: grid;
  grid-template-columns: minmax(220px, 0.54fr) minmax(0, 1.46fr);
  gap: clamp(32px, 7vw, 104px);
  align-items: start;
}

.topic-answer h2 {
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.12;
}

.topic-answer p {
  max-width: 70ch;
  font-size: clamp(18px, 2vw, 25px);
  line-height: 1.58;
}

.topic-section {
  padding: clamp(72px, 9vw, 116px) 0;
}

.topic-section + .topic-section {
  border-top: 1px solid var(--line);
}

.topic-section-soft {
  background: var(--page-deep);
}

.topic-section h2 {
  max-width: 16ch;
  font-size: clamp(34px, 3.4vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.section-intro {
  max-width: 72ch;
  margin-top: 20px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
}

.audience-grid,
.scope-grid,
.condition-grid,
.evidence-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 42px;
}

.audience-grid article,
.scope-grid article,
.condition-grid article {
  min-width: 0;
  padding: clamp(24px, 3vw, 36px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.audience-grid article:nth-child(3n + 1),
.scope-grid article:nth-child(4n + 2),
.condition-grid article:nth-child(3n) {
  background: var(--surface-soft);
}

.audience-grid h3,
.scope-grid h3,
.condition-grid h3,
.evidence-layout h3 {
  margin-bottom: 12px;
  font-size: clamp(20px, 2vw, 27px);
  line-height: 1.25;
}

.audience-grid p,
.scope-grid p,
.condition-grid p,
.evidence-layout p,
.evidence-layout li {
  color: var(--muted);
  line-height: 1.75;
}

.decision-ledger,
.cargo-ledger,
.inquiry-fields,
.fact-matrix {
  margin-top: 42px;
}

.decision-ledger article {
  display: grid;
  grid-template-columns: minmax(210px, 0.62fr) minmax(0, 1.38fr);
  gap: clamp(18px, 4vw, 56px);
  align-items: baseline;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}

.decision-ledger article:last-child {
  border-bottom: 1px solid var(--line);
}

.decision-ledger span,
.fact-matrix > article > span {
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.decision-ledger > article > span {
  display: none;
}

.decision-ledger h3,
.cargo-ledger h3,
.fact-matrix h3,
.inquiry-fields dt {
  font-size: clamp(19px, 2vw, 26px);
  line-height: 1.3;
}

.decision-ledger p,
.cargo-ledger p,
.fact-matrix p,
.inquiry-fields dd {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.mode-comparison {
  margin-top: 42px;
  overflow-x: auto;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  scrollbar-color: var(--accent) var(--surface-soft);
  scrollbar-width: thin;
}

.mode-comparison::-webkit-scrollbar {
  height: 8px;
}

.mode-comparison::-webkit-scrollbar-track {
  background: var(--surface-soft);
}

.mode-comparison::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: var(--accent);
}

.mode-comparison table {
  width: 100%;
  min-width: 780px;
  border-collapse: collapse;
}

.mode-comparison th,
.mode-comparison td {
  padding: 20px clamp(18px, 2.4vw, 30px);
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.mode-comparison tr:last-child th,
.mode-comparison tr:last-child td {
  border-bottom: 0;
}

.mode-comparison thead th {
  color: var(--subtle);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.mode-comparison tbody th {
  color: var(--text);
  font-size: 18px;
  white-space: nowrap;
}

.mode-comparison tbody td {
  color: var(--muted);
  line-height: 1.7;
}

.inquiry-checklist-table {
  width: 100%;
  margin-top: 42px;
  border-collapse: collapse;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.inquiry-checklist-table th,
.inquiry-checklist-table td {
  padding: 20px clamp(16px, 2.4vw, 30px);
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.inquiry-checklist-table tr:last-child th,
.inquiry-checklist-table tr:last-child td {
  border-bottom: 0;
}

.inquiry-checklist-table thead th {
  color: var(--subtle);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.inquiry-checklist-table tbody th {
  width: 30%;
  color: var(--text);
  font-size: 18px;
}

.inquiry-checklist-table tbody td {
  color: var(--muted);
  line-height: 1.7;
}

.brief-phases {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(44px, 8vw, 120px);
  margin-top: 44px;
}

.brief-phases article {
  padding-top: 24px;
  border-top: 1px solid var(--line-strong);
}

.brief-phases h3 {
  font-size: clamp(22px, 2.4vw, 30px);
}

.brief-phases ol {
  margin: 24px 0 0;
  padding-left: 22px;
}

.brief-phases li {
  padding: 16px 0 18px 8px;
  border-bottom: 1px solid var(--line);
}

.brief-phases li::marker {
  color: var(--accent);
  font-weight: 800;
}

.brief-phases strong,
.brief-phases span {
  display: block;
}

.brief-phases span {
  margin-top: 6px;
  color: var(--muted);
  line-height: 1.7;
}

.fact-matrix {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

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

.fact-matrix article {
  min-width: 0;
  padding: 26px clamp(18px, 2.5vw, 32px) 30px;
  border-left: 1px solid var(--line);
}

.fact-matrix article:first-child {
  border-left: 0;
  padding-left: 0;
}

.fact-matrix h3 {
  margin: 18px 0 10px;
}

.fact-matrix-plain h3 {
  margin-top: 0;
}

.decision-ledger-unordered article {
  grid-template-columns: minmax(210px, 0.62fr) minmax(0, 1.38fr);
}

.cargo-ledger {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
  column-gap: clamp(40px, 8vw, 120px);
}

.cargo-ledger article {
  position: relative;
  padding: 25px 0 27px 30px;
  border-top: 1px solid var(--line);
}

.cargo-ledger article:nth-child(3),
.cargo-ledger article:nth-child(4) {
  border-bottom: 1px solid var(--line);
}

.cargo-ledger article::before {
  content: "";
  position: absolute;
  top: 32px;
  left: 0;
  width: 12px;
  height: 3px;
  background: var(--accent);
}

.cargo-ledger h3 {
  margin-bottom: 9px;
}

.inquiry-fields {
  border-top: 1px solid var(--line-strong);
}

.inquiry-fields div {
  display: grid;
  grid-template-columns: minmax(190px, 0.45fr) minmax(0, 1.55fr);
  gap: clamp(24px, 5vw, 72px);
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.inquiry-fields dt {
  color: var(--text);
  font-weight: 800;
}

.cargo-flow {
  margin: 44px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
}

.cargo-flow li {
  display: grid;
  grid-template-columns: minmax(190px, 0.55fr) minmax(0, 1.45fr);
  gap: clamp(18px, 4vw, 52px);
  align-items: baseline;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.cargo-flow strong {
  font-size: 18px;
}

.cargo-flow span {
  color: var(--muted);
  line-height: 1.7;
}

.process-flow {
  counter-reset: process;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin: 46px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
}

.process-flow li {
  counter-increment: process;
  min-width: 0;
  padding: 28px 24px 8px;
  border-left: 1px solid var(--line);
}

.process-flow li:first-child,
.process-flow li:nth-child(5) {
  border-left: 0;
}

.process-flow li:nth-child(n + 5) {
  margin-top: 30px;
  border-top: 1px solid var(--line);
}

.process-flow li::before {
  content: counter(process, decimal-leading-zero);
  display: block;
  margin-bottom: 24px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.process-flow strong {
  display: block;
  margin-bottom: 10px;
  font-size: 18px;
}

.process-flow span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.detail-groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(36px, 7vw, 96px);
  margin-top: 46px;
}

.detail-group {
  min-width: 0;
}

.detail-group h3 {
  margin-bottom: 20px;
  font-size: clamp(22px, 2.4vw, 30px);
}

.detail-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
}

.detail-list li {
  display: grid;
  grid-template-columns: minmax(110px, 0.38fr) minmax(0, 1fr);
  gap: 22px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.detail-list strong {
  color: var(--text);
}

.detail-list span {
  color: var(--muted);
  line-height: 1.7;
}

.evidence-layout {
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  gap: clamp(32px, 6vw, 84px);
}

.evidence-panel,
.review-panel {
  padding: clamp(26px, 4vw, 42px);
  border-radius: var(--radius);
}

.evidence-panel {
  background: var(--surface);
}

.evidence-panel ul {
  margin: 22px 0 0;
  padding-left: 20px;
}

.evidence-panel li + li {
  margin-top: 12px;
}

.review-panel {
  border: 1px solid var(--line-strong);
}

.review-panel dl {
  display: grid;
  gap: 18px;
  margin: 22px 0 0;
}

.review-panel div {
  display: grid;
  gap: 4px;
}

.review-panel dt {
  color: var(--subtle);
  font-size: 13px;
}

.review-panel dd {
  margin: 0;
  color: var(--text);
}

.content-update {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--subtle);
  font-size: 13px;
  line-height: 1.65;
}

.content-update time {
  color: inherit;
  font-variant-numeric: tabular-nums;
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 26px;
}

.related-links a {
  color: var(--accent);
  font-weight: 800;
}

.topic-cta {
  padding: clamp(64px, 9vw, 108px) 0;
  background: var(--page-deep);
  border-top: 1px solid var(--line);
}

.topic-cta .section-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 36px;
}

.topic-cta h2 {
  max-width: 18ch;
  font-size: clamp(34px, 3.4vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.topic-cta p {
  max-width: 62ch;
  margin-top: 18px;
  color: var(--muted);
  line-height: 1.75;
}

.topic-cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

@media (max-width: 1060px) {
  .topic-hero {
    min-height: auto;
  }

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

  .topic-hero-copy {
    max-width: 760px;
  }

  .topic-hero-media {
    min-height: 430px;
  }

  .topic-cta .section-shell {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .topic-cta-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 760px) {
  .topic-hero {
    padding: 42px 0 60px;
  }

  .topic-hero h1 {
    font-size: clamp(37px, 11vw, 52px);
  }

  .topic-hero-media {
    min-height: 300px;
  }

  .topic-answer .section-shell,
  .audience-grid,
  .scope-grid,
  .condition-grid,
  .detail-groups,
  .evidence-layout,
  .brief-phases,
  .topic-cta .section-shell {
    grid-template-columns: 1fr;
  }

  .inquiry-checklist-table th,
  .inquiry-checklist-table td {
    padding-right: 12px;
    padding-left: 12px;
  }

  .inquiry-checklist-table tbody th {
    width: 38%;
    font-size: 16px;
  }

  .decision-ledger article,
  .cargo-flow li {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .decision-ledger p,
  .cargo-flow span {
    grid-column: 1;
  }

  .decision-ledger-unordered article {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .decision-ledger-unordered p {
    grid-column: 1;
  }

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

  .fact-matrix article,
  .fact-matrix article:first-child {
    padding: 22px 16px 24px;
    border-top: 1px solid var(--line);
    border-left: 1px solid var(--line);
  }

  .fact-matrix article:nth-child(odd) {
    padding-left: 0;
    border-left: 0;
  }

  .fact-matrix article:nth-child(-n + 2) {
    border-top: 0;
  }

  .cargo-ledger {
    grid-template-columns: 1fr;
  }

  .cargo-ledger article:nth-child(3) {
    border-bottom: 0;
  }

  .inquiry-fields div {
    grid-template-columns: 1fr;
    gap: 8px;
  }

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

  .process-flow li,
  .process-flow li:first-child,
  .process-flow li:nth-child(5) {
    margin-top: 0;
    padding: 22px 14px 8px;
    border-top: 1px solid var(--line);
    border-left: 1px solid var(--line);
  }

  .process-flow li:nth-child(odd) {
    border-left: 0;
    padding-left: 0;
  }

  .process-flow li:nth-child(-n + 2) {
    border-top: 0;
  }

  .detail-list li {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .topic-cta-actions,
  .topic-cta-actions .button {
    width: 100%;
  }
}