:root {
  --thea-ink: #303234;
  --thea-muted: #696d70;
  --thea-paper: #fbfaf7;
  --thea-line: #ddd9d2;
  --thea-slate: #5f7388;
  --thea-teal: #6d8986;
  --thea-gold: #a18a55;
}

.thea-document-title {
  display: none;
}

body {
  letter-spacing: -0.006em;
}

.sidebar-brand-text {
  font-weight: 720;
  letter-spacing: -0.035em;
}

.sidebar-tree .caption-text {
  color: var(--thea-gold);
  font-size: 0.72rem;
  font-weight: 760;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.content {
  line-height: 1.68;
}

.content h1,
.content h2,
.content h3 {
  font-weight: 660;
  letter-spacing: -0.03em;
}

.content h2 {
  margin-top: 2.7rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-background-border);
}

.content table {
  border-radius: 0.45rem;
  box-shadow: none;
}

.content code {
  border: 1px solid var(--color-background-border);
  border-radius: 0.28rem;
}

.content pre code {
  border: 0;
}

.thea-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(15rem, 0.8fr);
  gap: 3rem;
  align-items: end;
  padding: 3.8rem 0 4rem;
  border-bottom: 1px solid var(--color-background-border);
}

.thea-eyebrow,
.thea-section-heading > span {
  display: block;
  margin-bottom: 0.8rem;
  color: var(--thea-gold);
  font-size: 0.72rem;
  font-weight: 760;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.thea-hero h1 {
  max-width: 14ch;
  margin: 0;
  font-size: clamp(2.3rem, 5vw, 4.6rem);
  font-weight: 690;
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.thea-hero__copy > p {
  max-width: 42rem;
  margin: 1.6rem 0 0;
  color: var(--color-foreground-secondary);
  font-size: 1rem;
}

.thea-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.8rem;
}

.thea-button {
  display: inline-flex;
  align-items: center;
  min-height: 2.6rem;
  padding: 0.55rem 1rem;
  border: 1px solid var(--color-background-border);
  border-radius: 999px;
  color: var(--color-foreground-primary);
  font-size: 0.82rem;
  font-weight: 680;
  text-decoration: none;
}

.thea-button:hover {
  border-color: var(--color-brand-primary);
  color: var(--color-brand-primary);
}

.thea-button--primary {
  border-color: var(--color-brand-primary);
  background: var(--color-brand-primary);
  color: var(--color-background-primary);
}

.thea-button--primary:hover {
  background: transparent;
  color: var(--color-brand-primary);
}

.thea-hero__signal {
  border-top: 2px solid var(--color-foreground-primary);
}

.thea-hero__signal > div {
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  gap: 0.8rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--color-background-border);
}

.thea-hero__signal strong {
  color: var(--thea-gold);
  font-variant-numeric: tabular-nums;
}

.thea-hero__signal span {
  color: var(--color-foreground-secondary);
  font-size: 0.78rem;
  line-height: 1.45;
}

.thea-architecture,
.thea-paths,
.thea-quickstart {
  padding: 4rem 0;
}

.thea-section-heading {
  max-width: 42rem;
  margin-bottom: 2rem;
}

.thea-section-heading h2,
.thea-quickstart h2 {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: clamp(1.65rem, 3vw, 2.5rem);
}

.thea-section-heading p,
.thea-quickstart p {
  color: var(--color-foreground-secondary);
}

.thea-architecture__frame {
  overflow: hidden;
  padding: 1rem;
  border: 1px solid var(--color-background-border);
  border-radius: 0.8rem;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--thea-slate) 8%, transparent),
    color-mix(in srgb, var(--thea-gold) 7%, transparent)
  );
}

.thea-architecture__frame img {
  display: block;
  width: 100%;
  border-radius: 0.45rem;
}

.thea-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--color-background-border);
  border-left: 1px solid var(--color-background-border);
}

.thea-card {
  min-height: 13rem;
  padding: 1.4rem;
  border-right: 1px solid var(--color-background-border);
  border-bottom: 1px solid var(--color-background-border);
  color: var(--color-foreground-primary);
  text-decoration: none;
  transition:
    background-color 160ms ease,
    transform 160ms ease;
}

.thea-card:hover {
  background: var(--color-background-secondary);
  transform: translateY(-2px);
}

.thea-card__index {
  color: var(--thea-gold);
  font-size: 0.72rem;
  font-weight: 720;
}

.thea-card h3 {
  margin: 2rem 0 0.6rem;
  font-size: 1.15rem;
}

.thea-card p {
  min-height: 3.2rem;
  margin: 0;
  color: var(--color-foreground-secondary);
  font-size: 0.8rem;
}

.thea-card strong {
  display: block;
  margin-top: 1rem;
  color: var(--color-brand-primary);
  font-size: 0.78rem;
}

.thea-quickstart {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 2.5rem;
  align-items: start;
  margin-bottom: 2rem;
  border-top: 1px solid var(--color-background-border);
}

.thea-quickstart .highlight {
  margin: 0;
}

.thea-quickstart__next {
  grid-column: 2;
  margin-top: -1.6rem;
  font-size: 0.82rem;
}

@media (max-width: 67rem) {
  .thea-hero {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 2.5rem 0 3rem;
  }

  .thea-card-grid,
  .thea-quickstart {
    grid-template-columns: 1fr;
  }

  .thea-quickstart__next {
    grid-column: 1;
    margin-top: -1rem;
  }
}

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