/* Gallery grid for docs/index.md and docs/05-results.md. */
.ns-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.6rem;
  margin: 1.25rem 0;
}
.ns-gallery img {
  width: 100%;
  height: auto;
  border-radius: 0.375rem;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.ns-gallery img:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
@media (max-width: 960px) {
  .ns-gallery { grid-template-columns: repeat(2, 1fr); }
}

/* Before/after pair, side-by-side. */
.ns-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.25rem 0;
}
.ns-compare figure {
  margin: 0;
}
.ns-compare img {
  width: 100%;
  height: auto;
  border-radius: 0.375rem;
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}
.ns-compare figcaption {
  font-size: 0.8rem;
  text-align: center;
  margin-top: 0.4rem;
  color: var(--md-default-fg-color--light);
}
.ns-compare .ns-fail {
  border-color: #c33;
}
.ns-compare .ns-win {
  border-color: #2ea44f;
}

/* Key-number stat cards used in docs/index.md and 05-results.md. */
.ns-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
  margin: 1.25rem 0;
}
.ns-stats .ns-stat {
  background: var(--md-code-bg-color);
  border-radius: 0.5rem;
  padding: 0.8rem 1rem;
  text-align: center;
}
.ns-stats .ns-stat strong {
  display: block;
  font-size: 1.5rem;
  line-height: 1.1;
  font-family: "JetBrains Mono", monospace;
}
.ns-stats .ns-stat span {
  font-size: 0.75rem;
  color: var(--md-default-fg-color--light);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Diagram captions. */
figure.ns-figure {
  margin: 1.5rem 0;
}
figure.ns-figure img {
  width: 100%;
  border-radius: 0.375rem;
}
figure.ns-figure figcaption {
  text-align: center;
  font-size: 0.85rem;
  color: var(--md-default-fg-color--light);
  margin-top: 0.5rem;
}