/* =========================================================================
   layout.css
   App shell scaffolding and the recurring two-column page layouts (main +
   sidebar). Mobile-first: single column, expanding to two columns at >=960px.
   ========================================================================= */

#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

#app-main {
  flex: 1 0 auto;
  max-width: var(--maxw);
  width: 100%;
  margin-inline: auto;
  padding: var(--sp-6) var(--sp-5) var(--sp-8);
}

/* Generic listing layout (category / trending) */
.listing__head { margin-bottom: var(--sp-6); }
.listing__layout,
.home__layout,
.city__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-6);
}

@media (min-width: 960px) {
  .listing__layout,
  .city__layout {
    grid-template-columns: minmax(0, 1fr) 320px;
  }
  .home__layout {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
  }
}

.home__primary { min-width: 0; }
.home__section { margin-bottom: var(--sp-7); }

/* Sticky sidebar on desktop */
@media (min-width: 960px) {
  .home__aside,
  .listing__aside,
  .city__aside {
    position: sticky;
    top: var(--sp-5);
  }
}

/* Card grid (responsive) */
.card-grid {
  display: grid;
  gap: var(--sp-5);
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}
.cat-row {
  display: grid;
  gap: var(--sp-5);
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}