.collections-panel {
  display: grid;
  gap: 10px;
  margin-bottom: 14px;
  border: 1px solid rgba(201, 220, 228, 0.9);
  border-radius: var(--brand-radius-md, 16px);
  padding: 14px;
  background: rgba(251, 253, 255, 0.9);
  box-shadow: var(--brand-shadow-sm, 0 8px 24px rgba(15, 79, 103, 0.08));
}

.collections-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
}

.collections-heading h2 {
  margin: 0;
  color: var(--brand-text, #10252e);
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 22px;
  line-height: 1;
}

.collection-clear {
  border: 0;
  background: transparent;
  color: var(--brand-blue-dark, #0f4f67);
  cursor: pointer;
  font-size: 11px;
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.collections-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
}

.collection-button {
  display: grid;
  gap: 2px;
  min-width: 0;
  border: 1px solid #d6e2e6;
  border-radius: 11px;
  padding: 9px 10px;
  background: #fff;
  color: var(--brand-text, #10252e);
  cursor: pointer;
  text-align: left;
}

.collection-button:hover {
  border-color: rgba(23, 111, 143, 0.45);
  background: var(--brand-blue-soft, #dceff5);
}

.collection-button.is-active {
  border-color: var(--brand-blue, #176f8f);
  background: var(--brand-blue-soft, #dceff5);
  box-shadow: inset 0 0 0 1px var(--brand-blue, #176f8f);
}

.collection-button strong {
  overflow: hidden;
  font-size: 11px;
  font-weight: 800;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.collection-button span {
  color: var(--brand-muted, #5a6f78);
  font-size: 10px;
}

.collection-description {
  margin: 0;
  color: var(--brand-muted, #5a6f78);
  font-size: 11px;
  line-height: 1.4;
}

@media (max-width: 860px) {
  .collections-panel {
    grid-area: collections;
    margin: 0 12px 12px;
    box-shadow: none;
  }

  .app-shell {
    grid-template-rows: auto auto auto auto auto minmax(360px, 52dvh) auto;
    grid-template-areas:
      "brand"
      "wayfinding"
      "collections"
      "controls"
      "summary"
      "map"
      "results";
  }
}

@media (max-width: 520px) {
  .collections-list {
    grid-template-columns: 1fr;
  }
}