.feature61-block,
.feature62-block,
.feature63-block,
.feature64-block,
.feature65-block,
.feature66-block {
  padding: clamp(var(--space-8), 5vw, var(--space-16));
}

:is(
  .feature61-heading, .feature61-layout, .feature61-notes,
  .feature62-heading, .feature62-timeline,
  .feature63-heading, .feature63-grid,
  .feature64-heading, .feature64-layout, .feature64-ledger, .feature64-item,
  .feature65-heading, .feature65-matrix, .feature65-row,
  .feature66-heading, .feature66-proof
) {
  display: grid;
}

:is(.feature61-title, .feature62-title, .feature63-title, .feature64-title, .feature65-title, .feature66-title),
:is(.feature61-description, .feature62-description, .feature63-description, .feature64-description, .feature65-description, .feature66-description),
:is(.feature61-note h3, .feature62-step h3, .feature63-card h3, .feature64-item h3, .feature65-cell h3, .feature66-card h3),
:is(.feature61-note p, .feature62-step p, .feature63-card p, .feature64-item p, .feature65-cell p, .feature66-card p),
.feature64-quote {
  margin: 0;
}

:is(.feature61-title, .feature62-title, .feature63-title, .feature64-title, .feature65-title, .feature66-title) {
  font-size: clamp(var(--display-sm-size), 4.5vw, var(--display-lg-size));
  font-weight: var(--display-lg-weight);
  line-height: var(--display-lg-leading);
  letter-spacing: var(--display-lg-tracking);
  text-wrap: balance;
}

:is(.feature61-description, .feature62-description, .feature63-description, .feature64-description, .feature65-description, .feature66-description) {
  max-width: var(--width-prose);
  color: var(--color-text-secondary);
  font-size: var(--lead-size);
  line-height: var(--lead-leading);
  text-wrap: pretty;
}

:is(.feature61-heading, .feature62-heading, .feature63-heading, .feature64-heading, .feature65-heading, .feature66-heading) {
  --grid-gap: clamp(var(--space-6), 4vw, var(--space-12));
  grid-template-columns: minmax(0, 1fr);
  align-items: end;
  margin-block-end: clamp(var(--space-8), 5vw, var(--space-12));
}

.feature61-layout {
  --grid-gap: var(--space-5);
  grid-template-columns: minmax(0, 1fr);
}

.feature61-media,
.feature63-media,
.feature64-media,
.feature66-media {
  margin: 0;
  overflow: hidden;
  background: var(--color-surface-sunken);
  border-radius: var(--radius-lg);
}

.feature61-media {
  --frame-ratio: 16 / 9;
}

.feature61-notes {
  --grid-gap: var(--space-4);
  grid-template-columns: minmax(0, 1fr);
}

.feature61-note {
  --stack-gap: var(--space-3);
  padding: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.feature61-index,
.feature62-index,
.feature63-label,
.feature64-label,
.feature65-label,
.feature66-label {
  color: var(--color-accent-strong);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

:is(.feature61-note h3, .feature62-step h3, .feature63-card h3, .feature64-item h3, .feature65-cell h3, .feature66-card h3) {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  line-height: var(--leading-snug);
}

:is(.feature61-note p, .feature62-step p, .feature63-card p, .feature64-item p, .feature65-cell p, .feature66-card p) {
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

.feature62-timeline {
  --grid-gap: 0;
  grid-template-columns: minmax(0, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
  border-block-end: 1px solid var(--color-border-strong);
}

.feature62-step {
  --stack-gap: var(--space-4);
  min-width: 0;
  padding: clamp(var(--space-5), 3vw, var(--space-8));
  border-block-start: 1px solid var(--color-border-strong);
}

.feature62-value {
  color: var(--color-accent-strong);
  font-size: clamp(var(--text-3xl), 5vw, var(--text-6xl));
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
}

.feature63-grid {
  --grid-gap: var(--space-5);
  grid-template-columns: minmax(0, 1fr);
}

.feature63-card {
  --stack-gap: var(--space-4);
  justify-content: end;
  min-height: 22rem;
  padding: clamp(var(--space-6), 4vw, var(--space-9));
  background: var(--color-surface-sunken);
  border-radius: var(--radius-lg);
}

.feature63-card-dark {
  color: var(--color-text-inverted);
  background: var(--color-text);
}

.feature63-card-dark :is(.feature63-label, h3, p) {
  color: inherit;
}

.feature63-card-media {
  padding: 0;
  overflow: hidden;
}

.feature63-media {
  --frame-ratio: 4 / 5;
  min-height: 100%;
  border-radius: 0;
}

.feature64-layout {
  --grid-gap: clamp(var(--space-6), 4vw, var(--space-10));
  grid-template-columns: minmax(0, 1fr);
}

.feature64-media {
  --frame-ratio: 4 / 5;
}

.feature64-copy {
  --stack-gap: var(--space-6);
  align-content: center;
  min-width: 0;
}

.feature64-quote {
  font-size: clamp(var(--text-2xl), 4vw, var(--text-5xl));
  font-weight: var(--weight-bold);
  line-height: var(--leading-snug);
  text-wrap: balance;
}

.feature64-ledger {
  --grid-gap: 0;
  grid-template-columns: minmax(0, 1fr);
  border-block-end: 1px solid var(--color-border-strong);
}

.feature64-item {
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-4);
  padding-block: var(--space-4);
  border-block-start: 1px solid var(--color-border-strong);
}

.feature65-matrix {
  --grid-gap: 0;
  grid-template-columns: minmax(0, 1fr);
  border-block-end: 1px solid var(--color-border-strong);
}

.feature65-row {
  grid-template-columns: minmax(0, 1fr);
  border-block-start: 1px solid var(--color-border-strong);
}

.feature65-cell {
  --stack-gap: var(--space-3);
  padding: clamp(var(--space-5), 3vw, var(--space-7));
}

.feature65-cell-system {
  background: var(--color-accent-subtle);
}

.feature65-row-heading {
  align-self: start;
  margin: 0;
  padding: clamp(var(--space-5), 3vw, var(--space-7));
  font-size: var(--text-lg);
}

.feature66-media {
  --frame-ratio: 21 / 9;
  min-height: 20rem;
}

.feature66-proof {
  --grid-gap: var(--space-4);
  grid-template-columns: minmax(0, 1fr);
  margin-block-start: var(--space-5);
}

.feature66-card {
  --stack-gap: var(--space-3);
  padding: clamp(var(--space-5), 3vw, var(--space-7));
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

@media (min-width: 48rem) {
  :is(.feature61-heading, .feature62-heading, .feature63-heading, .feature64-heading, .feature65-heading, .feature66-heading) {
    grid-template-columns: minmax(0, 1.05fr) minmax(18rem, 0.75fr);
  }

  .feature61-layout {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .feature61-media {
    grid-column: span 8;
  }

  .feature61-notes {
    grid-column: span 4;
  }

  .feature62-timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .feature62-step {
    border-inline-start: 1px solid var(--color-border-strong);
  }

  .feature62-step:first-child {
    border-inline-start: 0;
  }

  .feature63-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .feature64-layout {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  }

  .feature65-row {
    grid-template-columns: minmax(10rem, 0.45fr) repeat(2, minmax(0, 1fr));
  }

  .feature65-cell-system {
    border-inline-start: 1px solid var(--color-border);
  }

  .feature66-proof {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}