.nn-cats__head { margin-bottom: clamp(34px, 4vw, 56px); }
@media (min-width: 990px) {
  .nn-cats__head { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: 60px; align-items: end; }
}
.nn-cats__title { margin-top: 18px; max-width: 16ch; }
.nn-cats__desc { max-width: 46ch; }

/* editorial grid: 6 columns on desktop, cards span 2 or 3 */
.nn-cats__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
@media (min-width: 750px) {
  .nn-cats__grid { grid-template-columns: repeat(6, 1fr); gap: 16px; }
}

.nn-cat {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 24px 28px;
  background: var(--nn-paper);
  border: 1px solid var(--nn-line-soft);
  border-radius: var(--nn-radius-lg);
  min-height: 168px;
  overflow: hidden;
  transition: transform 0.5s var(--nn-ease), box-shadow 0.5s var(--nn-ease), border-color 0.5s var(--nn-ease), background 0.5s var(--nn-ease);
  isolation: isolate;
}
.nn-cat::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--nn-terra);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.55s var(--nn-ease);
}
.nn-cat:hover {
  transform: translateY(-4px);
  border-color: rgba(18, 49, 58, 0.16);
  box-shadow: var(--nn-shadow-md);
}
.nn-cat:hover::after { transform: scaleX(1); }

@media (min-width: 750px) {
  .nn-cat { grid-column: span 2; }
  .nn-cat--md { grid-column: span 3; }
  .nn-cat--lg { grid-column: span 4; min-height: 216px; }
  .nn-cat--full { grid-column: span 6; }
}

.nn-cat__top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.nn-cat__num {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--nn-terra-text);
  font-variant-numeric: tabular-nums;
}
.nn-cat__mark {
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 1px solid var(--nn-line);
  display: grid;
  place-items: center;
  color: var(--nn-ink-mute);
  transition: background 0.45s var(--nn-ease), color 0.45s var(--nn-ease), border-color 0.45s var(--nn-ease), transform 0.45s var(--nn-ease);
}
.nn-cat:hover .nn-cat__mark {
  background: var(--nn-cobalt);
  border-color: var(--nn-cobalt);
  color: #fff;
  transform: rotate(-45deg);
}
.nn-cat__title {
  font-family: var(--nn-serif);
  font-size: clamp(20px, 2vw, 25px);
  letter-spacing: -0.015em;
  line-height: 1.16;
  color: var(--nn-ink);
  margin-top: auto;
}
.nn-cat--lg .nn-cat__title { font-size: clamp(24px, 2.6vw, 32px); }
.nn-cat__text { font-size: 14px; line-height: 1.55; color: var(--nn-ink-soft); max-width: 40ch; }

/* dark accent card variant */
.nn-cat--accent { background: var(--nn-ink); border-color: var(--nn-ink); }
.nn-cat--accent .nn-cat__title { color: var(--nn-cream); }
.nn-cat--accent .nn-cat__text { color: rgba(251, 247, 240, 0.68); }
.nn-cat--accent .nn-cat__mark { border-color: rgba(251, 247, 240, 0.28); color: rgba(251, 247, 240, 0.8); }
.nn-cat--accent .nn-cat__num { color: #E58B62; }

.nn-cat--blue { background: var(--nn-cobalt); border-color: var(--nn-cobalt); }
.nn-cat--blue .nn-cat__title { color: #fff; }
.nn-cat--blue .nn-cat__text { color: rgba(255, 255, 255, 0.74); }
.nn-cat--blue .nn-cat__mark { border-color: rgba(255, 255, 255, 0.32); color: #fff; }
.nn-cat--blue .nn-cat__num { color: #FFC7A8; }
.nn-cat--blue:hover .nn-cat__mark, .nn-cat--accent:hover .nn-cat__mark { background: var(--nn-terra); border-color: var(--nn-terra); }

.nn-cats__footer {
  margin-top: clamp(28px, 3.5vw, 44px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 26px;
}