/* External catalog add-book state polish. Scoped to the add-book API page only. */
.add-book-api-page .api-results-state {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  min-height: 96px;
  padding: 22px;
  border: 1px solid var(--panel-border);
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface-panel) 92%, transparent);
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.08);
}

.add-book-api-page .api-results-state-icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border: 1px solid color-mix(in srgb, var(--accent) 38%, var(--panel-border) 62%);
  border-radius: 16px;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent-soft) 22%, transparent);
}

.add-book-api-page .api-results-state-icon svg {
  width: 26px;
  height: 26px;
}

.add-book-api-page .api-results-state h3 {
  margin: 0 0 4px;
  color: var(--text);
  font-size: 1rem;
  font-weight: 800;
}

.add-book-api-page .api-results-state p {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.add-book-api-page .api-results-state-error .api-results-state-icon {
  border-color: color-mix(in srgb, var(--danger, #FF6B6B) 44%, var(--panel-border) 56%);
  color: var(--danger, #FF6B6B);
  background: color-mix(in srgb, var(--danger, #FF6B6B) 12%, transparent);
}

.add-book-api-page .api-results-state-loading .api-results-state-icon svg {
  animation: api-state-spin 1s linear infinite;
}

.add-book-api-page .api-results-grid-loading {
  opacity: 0.8;
  pointer-events: none;
}

.add-book-api-page .api-result-card-skeleton .api-result-cover,
.add-book-api-page .api-result-card-skeleton .api-result-body span,
.add-book-api-page .api-result-card-skeleton .api-result-meta span,
.add-book-api-page .api-result-card-skeleton .api-result-add-button {
  position: relative;
  overflow: hidden;
  background: color-mix(in srgb, var(--surface-panel) 66%, var(--panel-border) 34%);
}

.add-book-api-page .api-result-card-skeleton .api-result-cover::after,
.add-book-api-page .api-result-card-skeleton .api-result-body span::after,
.add-book-api-page .api-result-card-skeleton .api-result-meta span::after,
.add-book-api-page .api-result-card-skeleton .api-result-add-button::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--text) 9%, transparent), transparent);
  content: "";
  transform: translateX(-100%);
  animation: api-skeleton-sweep 1.35s ease-in-out infinite;
}

.add-book-api-page .api-result-card-skeleton .api-result-body span {
  display: block;
  height: 14px;
  border-radius: 999px;
}

.add-book-api-page .api-result-card-skeleton .api-result-body span:first-child {
  width: 82%;
}

.add-book-api-page .api-result-card-skeleton .api-result-body span:last-child {
  width: 56%;
}

.add-book-api-page .api-result-card-skeleton .api-result-meta span {
  width: 62px;
  height: 14px;
  border-radius: 999px;
}

.add-book-api-page .api-result-card-skeleton .api-result-add-button {
  border-color: transparent;
}

.add-book-api-page .api-result-cover {
  cursor: default;
}

body[data-theme="light"] .add-book-api-page .api-results-state {
  background: var(--bg-card);
  border-color: var(--border-color);
  box-shadow: 0 12px 26px rgba(84, 64, 40, 0.07);
}

body[data-theme="light"] .add-book-api-page .api-result-card-skeleton .api-result-cover,
body[data-theme="light"] .add-book-api-page .api-result-card-skeleton .api-result-body span,
body[data-theme="light"] .add-book-api-page .api-result-card-skeleton .api-result-meta span,
body[data-theme="light"] .add-book-api-page .api-result-card-skeleton .api-result-add-button {
  background: color-mix(in srgb, var(--bg-card) 72%, var(--border-color) 28%);
}

@keyframes api-state-spin {
  to { transform: rotate(360deg); }
}

@keyframes api-skeleton-sweep {
  to { transform: translateX(100%); }
}

@media (max-width: 760px) {
  .add-book-api-page .api-results-state {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 14px;
    padding: 18px;
  }

  .add-book-api-page .api-results-state .compact-button {
    grid-column: 1 / -1;
    width: 100%;
  }

  .add-book-api-page .api-results-state-icon {
    width: 44px;
    height: 44px;
    border-radius: 14px;
  }
}