/* ── Postcard cards: image left, content right ─────────────────────────── */
.postcard-item {
  display: flex;
  align-items: stretch;
  padding: 0;
  overflow: hidden;
}

.postcard-image {
  flex-shrink: 0;
  width: 200px;
}

.postcard-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: .375rem 0 0 .375rem;
}

.postcard-body {
  flex: 1;
  min-width: 0;
  padding: 1rem;
}

/* ── Feature image on article pages ────────────────────────────────────── */
.feature-image {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: .375rem;
  display: block;
  margin-bottom: 1.5rem;
}

/* ── Nav: show full navbar at 768px+, hide hamburger at same point ──────── */
@media screen and (min-width: 48rem) {
  #header_navbar {
    display: block !important;
  }
  #sidebar_btn {
    display: none !important;
  }
}

/* ── Mobile: stack image above content ─────────────────────────────────── */
@media (max-width: 640px) {
  .postcard-item {
    flex-direction: column;
  }

  .postcard-image {
    width: 100%;
    height: 160px;
  }

  .postcard-image img {
    border-radius: .375rem .375rem 0 0;
  }
}