/* 4. Атлас — главы по курортам, боковое оглавление */
.atlas { display: grid; grid-template-columns: 210px 1fr; gap: 1.2rem; align-items: start; }
.atlas-nav { position: sticky; top: 5rem; display: grid; gap: .35rem; }
.atlas-nav a { text-decoration: none; padding: .45rem .6rem; border-left: 3px solid var(--line); }
.atlas-nav a:hover { border-color: var(--accent); }
.chapter { padding: 1.2rem 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: 1.1fr .9fr; gap: 1rem; }
.chapter img { width: 100%; aspect-ratio: 5/4; object-fit: cover; }
.place { font-size: clamp(2rem, 5vw, 3.4rem); line-height: .95; margin: 0; letter-spacing: -.03em; }
@media (max-width: 860px) {
  .atlas { grid-template-columns: 1fr; }
  .atlas-nav { position: static; display: flex; overflow-x: auto; max-width: 100%; gap: .5rem; }
  .atlas-nav a { white-space: nowrap; border-left: 0; border-bottom: 2px solid var(--line); }
  .chapter { grid-template-columns: 1fr; }
}