/* ns3-ntn-toolkit site polish + media galleries */
:root { --ntn-radius: 12px; }

/* Responsive showcase gallery */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.1rem;
  margin: 1.4rem 0 2rem;
}
.showcase-grid figure {
  margin: 0;
  border-radius: var(--ntn-radius);
  overflow: hidden;
  background: var(--md-default-fg-color--lightest);
  border: 1px solid var(--md-default-fg-color--lightest);
  box-shadow: 0 2px 10px rgba(0,0,0,.10);
  transition: transform .18s ease, box-shadow .18s ease;
}
.showcase-grid figure:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 26px rgba(0,0,0,.20);
}
.showcase-grid img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: #05070d;
}
.showcase-grid figcaption {
  padding: .6rem .85rem .8rem;
  font-size: .82rem;
  line-height: 1.35;
  color: var(--md-default-fg-color--light);
}
.showcase-grid figcaption strong { color: var(--md-default-fg-color); }

/* Full-width hero banner image */
.ntn-hero-banner img {
  width: 100%;
  border-radius: var(--ntn-radius);
  border: 1px solid var(--md-default-fg-color--lightest);
}

/* Stat strip */
.ntn-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: .75rem;
  margin: 1.4rem 0;
}
.ntn-stats .stat {
  text-align: center;
  padding: 1rem .5rem;
  border-radius: var(--ntn-radius);
  background: var(--md-default-fg-color--lightest);
}
.ntn-stats .stat .n {
  display: block;
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--md-primary-fg-color);
  line-height: 1;
}
.ntn-stats .stat .l {
  font-size: .76rem;
  color: var(--md-default-fg-color--light);
}

/* ---- Lightbox ---- */
.ntn-lightbox {
  position: fixed; inset: 0; z-index: 2000;
  display: none; align-items: center; justify-content: center;
  background: rgba(3, 5, 12, .92); padding: 3vmin; cursor: zoom-out;
}
.ntn-lightbox.open { display: flex; }
.ntn-lightbox img { max-width: 96vw; max-height: 92vh; border-radius: 10px; box-shadow: 0 8px 40px rgba(0,0,0,.6); }
.ntn-lightbox-close {
  position: fixed; top: 14px; right: 22px; font-size: 2.4rem; line-height: 1;
  color: #fff; cursor: pointer; opacity: .85;
}
.ntn-lightbox-close:hover { opacity: 1; }

/* ---- Responsive tuning ---- */
@media screen and (max-width: 600px) {
  .showcase-grid { grid-template-columns: 1fr; gap: .9rem; }
  .ntn-stats { grid-template-columns: repeat(2, 1fr); }
  .ntn-stats .stat .n { font-size: 1.4rem; }
  .md-typeset h1 { font-size: 1.6rem; line-height: 1.2; }
}
@media screen and (max-width: 900px) {
  .showcase-grid { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
}
/* Make the Material "grid cards" feature responsive down to 1 col on phones */
@media screen and (max-width: 480px) {
  .md-typeset .grid.cards > ul,
  .md-typeset .grid.cards { grid-template-columns: 1fr !important; }
}
/* Tables scroll instead of overflowing on small screens */
.md-typeset__table { overflow-x: auto; }

/* ---- Module "purpose" callout band ---- */
.ntn-purpose {
  border-left: 4px solid var(--md-primary-fg-color);
  background: var(--md-default-fg-color--lightest);
  padding: .9rem 1.1rem; border-radius: 0 10px 10px 0; margin: 1rem 0 1.4rem;
  font-size: .95rem;
}
.ntn-badges img { margin: 2px 4px 2px 0; }