.topic-main {
  overflow: clip;
}

.topic-hero {
  min-height: calc(82dvh - 72px);
  border-bottom: 1px solid var(--line);
}

.topic-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.75fr);
  align-items: center;
  width: min(calc(100% - 48px), var(--page-width));
  min-height: calc(82dvh - 72px);
  margin-inline: auto;
  gap: clamp(48px, 8vw, 112px);
  padding-block: clamp(48px, 7vw, 96px);
}

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

.topic-hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(3.1rem, 4.7vw, 5.3rem);
  font-weight: 860;
  letter-spacing: -0.075em;
  line-height: 0.93;
}

.topic-title-line {
  display: block;
  white-space: nowrap;
}

.topic-hero-lede {
  max-width: 560px;
  margin: 26px 0 0;
  color: var(--text-soft);
  font-size: clamp(1rem, 1.35vw, 1.18rem);
  line-height: 1.65;
}

.topic-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.topic-hero-visual {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.topic-hero-visual::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(180deg, transparent 54%, rgba(4, 18, 11, 0.28));
  pointer-events: none;
}

.topic-hero-visual img {
  width: 100%;
  height: 100%;
  min-height: 520px;
  object-fit: cover;
}

.topic-author-strip {
  border-bottom: 1px solid var(--line);
}

.topic-author-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  width: min(calc(100% - 48px), 980px);
  min-height: 104px;
  margin-inline: auto;
  gap: 18px;
}

.topic-author-inner img {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  object-fit: cover;
}

.topic-author-inner strong,
.topic-author-inner span {
  display: block;
}

.topic-author-inner span {
  margin-top: 4px;
  color: var(--text-soft);
  font-size: 0.82rem;
}

.topic-article {
  width: min(calc(100% - 48px), 980px);
  margin-inline: auto;
  padding-block: clamp(76px, 9vw, 126px);
}

.topic-article h2,
.topic-article h3 {
  margin: 0;
  letter-spacing: -0.045em;
}

.topic-article h2 {
  max-width: 780px;
  font-size: clamp(2.35rem, 4.7vw, 4.5rem);
  line-height: 1;
}

.topic-article h3 {
  font-size: clamp(1.45rem, 2.4vw, 2.15rem);
  line-height: 1.12;
}

.topic-article p,
.topic-article li {
  color: var(--text-soft);
  font-size: clamp(1rem, 1.2vw, 1.08rem);
  line-height: 1.78;
}

.topic-article p {
  max-width: 72ch;
  margin: 22px 0 0;
}

.topic-intro {
  max-width: 800px;
  font-size: clamp(1.2rem, 2vw, 1.5rem) !important;
  line-height: 1.62 !important;
}

.topic-map {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 52px;
  margin: 54px 0 0;
  padding: 0;
  counter-reset: topic-step;
  list-style: none;
}

.topic-map li {
  position: relative;
  min-height: 96px;
  padding: 20px 0 20px 58px;
  border-top: 1px solid var(--line);
}

.topic-map li::before {
  position: absolute;
  top: 20px;
  left: 0;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--surface-strong);
  color: var(--accent);
  content: counter(topic-step);
  counter-increment: topic-step;
  display: grid;
  place-items: center;
  font-family: var(--font-geist-mono), monospace;
  font-size: 0.75rem;
  font-weight: 760;
}

.topic-map a {
  color: var(--text);
  font-weight: 760;
}

.topic-section {
  display: grid;
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 1fr);
  gap: clamp(42px, 8vw, 96px);
  padding-block: clamp(66px, 8vw, 104px);
  border-top: 1px solid var(--line);
}

.topic-section-copy > p:first-of-type {
  margin-top: 0;
}

.topic-figure {
  margin: 30px 0 0;
}

.topic-figure img {
  width: 100%;
  max-height: 590px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  object-fit: cover;
  box-shadow: 0 18px 46px color-mix(in srgb, var(--accent) 10%, transparent);
}

.topic-figure figcaption {
  max-width: 70ch;
  margin-top: 14px;
  color: var(--text-soft);
  font-size: 0.82rem;
  line-height: 1.55;
}

.topic-callout {
  margin-top: 34px;
  padding: clamp(26px, 4vw, 42px);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background:
    radial-gradient(circle at 95% 5%, color-mix(in srgb, var(--accent) 13%, transparent), transparent 42%),
    var(--surface);
}

.topic-callout strong {
  display: block;
  color: var(--text);
  font-size: 1.08rem;
}

.topic-callout p {
  margin-top: 10px;
}

.topic-source-list {
  display: grid;
  gap: 16px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

.topic-source-list li {
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.topic-source-list a {
  color: var(--text);
  font-weight: 730;
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--accent) 55%, transparent);
  text-underline-offset: 4px;
}

.topic-cta {
  padding-block: clamp(72px, 9vw, 118px);
  border-top: 1px solid var(--line);
}

.topic-cta-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  width: min(calc(100% - 48px), 980px);
  margin-inline: auto;
  gap: 38px;
  padding: clamp(32px, 5vw, 58px);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.topic-cta h2 {
  max-width: 620px;
  margin: 0;
  font-size: clamp(2.2rem, 4.5vw, 4.3rem);
  letter-spacing: -0.065em;
  line-height: 0.98;
}

.topic-cta p {
  max-width: 58ch;
  margin: 18px 0 0;
  color: var(--text-soft);
  line-height: 1.65;
}

.profile-hero .topic-hero-visual img {
  object-position: center 18%;
}

.profile-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 34px;
}

.profile-link {
  min-height: 166px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
  transition:
    transform 220ms cubic-bezier(0.16, 1, 0.3, 1),
    border-color 220ms ease;
}

.profile-link:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
}

.profile-link strong,
.profile-link span {
  display: block;
}

.profile-link strong {
  font-size: 1.12rem;
  letter-spacing: -0.025em;
}

.profile-link span {
  margin-top: 12px;
  color: var(--text-soft);
  line-height: 1.55;
}

@media (max-width: 900px) {
  .topic-hero-inner {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .topic-hero-visual,
  .topic-hero-visual img {
    min-height: 390px;
  }

  .topic-section {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

@media (max-width: 820px) {
  .topic-hero-inner,
  .topic-author-inner,
  .topic-article,
  .topic-cta-inner {
    width: min(calc(100% - 32px), 980px);
  }

  .topic-hero-inner {
    gap: 34px;
    padding-block: 42px;
  }

  .topic-hero h1 {
    font-size: clamp(2.7rem, 13vw, 4.5rem);
  }

  .topic-title-line {
    white-space: normal;
  }

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

  .topic-hero-visual,
  .topic-hero-visual img {
    min-height: 320px;
  }

  .topic-author-inner {
    grid-template-columns: auto 1fr;
    padding-block: 18px;
  }

  .topic-author-inner .text-link {
    grid-column: 2;
    margin-top: 0;
  }

  .topic-map,
  .profile-links {
    grid-template-columns: 1fr;
  }

  .topic-article {
    padding-block: 70px;
  }

  .topic-section {
    padding-block: 64px;
  }
}

@media (max-width: 440px) {
  .topic-author-inner {
    grid-template-columns: 1fr;
  }

  .topic-author-inner img {
    width: 68px;
    height: 68px;
  }

  .topic-author-inner .text-link {
    grid-column: auto;
  }
}