.collection {
  min-width: 0;
}
.drop-zone {
  text-align: center;
  border: 1px dashed #9db7a8;
  border-radius: 12px;
  padding: 18px 10px;
  background: #f1f5ec;
}
.drop-zone.dragging {
  outline: 3px solid var(--gold);
}
.drop-zone p {
  margin-bottom: 10px;
}
.upload-symbol {
  font-size: 2rem;
  color: var(--accent);
}
.file-button {
  display: block;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 0.65rem 0.8rem;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
}
.file-button:hover {
  background: var(--accent-soft);
}
.file-button.primary {
  margin-bottom: 12px;
}
.file-button.primary:hover {
  background: var(--ink);
}
.drop-zone small {
  font-size: 0.7rem;
}
.wide {
  width: 100%;
}
.stack-actions {
  display: grid;
  gap: 8px;
}
.filter-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 16px 0;
}
.filter-grid label {
  font-size: 0.74rem;
}
.inline-label {
  display: flex;
  gap: 8px;
  align-items: center;
  margin: 0;
  font-size: 0.82rem;
  font-weight: 500;
}
.compact-select {
  width: auto;
  max-width: 200px;
}
.selection-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 18px 0;
}
.selection-bar button {
  font-size: 0.75rem;
  padding: 0.5rem 0.7rem;
}
.paper-group {
  margin-bottom: 24px;
}
.group-heading {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 12px;
  font-size: 1.1rem;
}
.paper-card {
  position: relative;
  margin-bottom: 12px;
  padding: 20px;
}
.paper-heading {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.paper-heading h3 {
  font-size: 1.05rem;
  line-height: 1.5;
  margin: 0 0 6px;
}
.paper-heading input {
  margin-top: 7px;
}
.title-button {
  border: 0;
  padding: 0;
  text-align: left;
  background: transparent;
  font-weight: 600;
  line-height: 1.5;
  border-radius: 2px;
}
.title-button:hover {
  background: transparent;
  color: var(--accent);
  text-decoration: underline;
}
.paper-source {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 12px;
}
.paper-abstract {
  font-size: 0.86rem;
  line-height: 1.75;
  margin: 12px 0;
  color: #46605a;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.paper-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
}
.paper-bottom button {
  font-size: 0.75rem;
  padding: 0.4rem 0.65rem;
}
.paper-labels {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.missing-notice {
  margin: 10px 0 0;
  font-size: 0.72rem;
  color: #87642d;
}
.search-panel h2 {
  font-size: 1.45rem;
}
.empty-symbol {
  font-size: 2.2rem;
  color: #78938b;
  margin: 0 0 10px;
}
#reader {
  width: min(900px, calc(100vw - 32px));
}
#pdf-canvas {
  max-width: 100%;
  display: block;
  margin: 20px auto;
  border: 1px solid var(--line);
}
#text-preview {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  max-height: 60vh;
  background: var(--paper);
}
#storage-error {
  margin-bottom: 20px;
}
.note a {
  color: inherit;
}
.busy {
  cursor: progress;
}
.busy button {
  cursor: progress;
}
#storage-estimate {
  margin-top: 12px;
  margin-bottom: 0;
}
.dialog-head button {
  font-size: 1.4rem;
  padding: 0.1rem 0.6rem;
}
#confirm-dialog {
  max-width: 480px;
}
.paper-tags {
  margin-top: 10px;
}
.paper-tags .tag {
  background: transparent;
}
#editor-info {
  padding: 10px;
  background: var(--accent-soft);
  border-radius: 8px;
}
@media (max-width: 1100px) {
  .filter-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .selection-bar {
    justify-content: flex-start;
  }
}
@media (max-width: 720px) {
  .paper-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
  .selection-bar .actions {
    width: 100%;
  }
  .filter-grid {
    gap: 10px;
  }
  .paper-card {
    padding: 16px;
  }
  .compact-select {
    max-width: 160px;
  }
  .group-heading {
    font-size: 1rem;
  }
  .stats .stat strong {
    font-size: 1.4rem;
  }
}