/* Component-specific styles */

/* Modern Tag Filter Components */
.filters-panel { 
  background: var(--card-bg); 
  box-shadow: var(--card-shadow); 
  border-radius: var(--radius-lg); 
  padding: var(--spacing-lg);
  margin: 0 0 var(--spacing-xl) 0;
  border: 1px solid var(--btn-border);
}

.filter-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--divider);
}

.filter-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.filter-icon {
  font-size: 1.1rem;
}

.filter-text {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.filter-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--action-bg);
  color: var(--action-text);
  border: 1px solid var(--btn-border);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
}

.filter-btn:hover {
  background: var(--action-bg-hover);
  transform: translateY(-1px);
}

.clear-btn {
  background: var(--muted);
  color: white;
  border-color: var(--muted);
}

.clear-btn:hover {
  background: var(--text);
  border-color: var(--text);
}

.filter-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

/* Search Section */
.search-section {
  margin-bottom: var(--spacing-md);
  position: relative;
}

.search-group {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.search-input {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--btn-border);
  border-radius: var(--radius-md);
  background: var(--bg);
  color: var(--text);
  font-size: 0.9rem;
  transition: border-color 0.2s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
}

.search-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--primary);
  color: white;
  border: 1px solid var(--primary);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.search-btn:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  transform: translateY(-1px);
}

.search-icon {
  font-size: 0.9rem;
}

.search-text {
  font-size: 0.9rem;
}

/* Search Scope Selector */
.search-scope {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  justify-content: center;
}

.scope-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.scope-select {
  padding: var(--spacing-xs) var(--spacing-sm);
  border: 1px solid var(--btn-border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 200px;
}

.scope-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-alpha);
}

.scope-select:hover {
  border-color: var(--primary);
}

/* Search Suggestions */
.search-suggestions {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--card-bg);
  border: 1px solid var(--btn-border);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  box-shadow: var(--card-shadow);
  z-index: 1000;
  max-height: 200px;
  overflow-y: auto;
}

.suggestion-item {
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  border-bottom: 1px solid var(--divider);
  font-size: 0.9rem;
  color: var(--text);
  transition: background-color 0.2s ease;
}

.suggestion-item:last-child {
  border-bottom: none;
}

.suggestion-item:hover,
.suggestion-item.hover {
  background: var(--hover-bg);
  color: var(--text);
}


.all-papers-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--success-light);
  color: var(--success-hover);
  border: 1px solid var(--success);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
}

.all-papers-btn:hover {
  background: var(--success);
  color: white;
  transform: translateY(-1px);
}

.all-papers-btn.active {
  background: var(--success);
  color: white;
  box-shadow: 0 0 0 2px var(--success-light);
}

/* Filter Sections */
.filter-section {
  margin-bottom: var(--spacing-md);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-sm);
}

.section-icon {
  font-size: 1rem;
  margin-right: var(--spacing-xs);
}

.section-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: transparent;
  color: var(--muted-text);
  border: 1px solid var(--btn-border);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.toggle-btn:hover {
  background: var(--action-bg);
  color: var(--action-text);
}

.toggle-icon {
  font-size: 0.8rem;
  transition: transform 0.2s ease;
}

.toggle-btn.expanded .toggle-icon {
  transform: rotate(180deg);
}

/* Tag Chips */
.top-chips,
.detail-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  align-items: center;
}

.top-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--success-light);
  color: var(--success-hover);
  border: 1px solid var(--success);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.top-chip:hover {
  background: var(--success);
  color: white;
  transform: translateY(-1px);
}

.top-chip input {
  margin: 0;
  opacity: 0;
  position: absolute;
}

.top-chip.checked {
  background: var(--success);
  color: white;
  box-shadow: 0 0 0 2px var(--success-light);
}

.top-chip.checked .chip-count {
  background: rgba(255, 255, 255, 0.2);
}

.chip-text {
  font-size: 0.8rem;
}

.chip-count {
  font-size: 0.7rem;
  opacity: 0.8;
  padding: 0.1rem 0.3rem;
  background: rgba(0, 0, 0, 0.1);
  border-radius: 999px;
  margin-left: var(--spacing-xs);
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--primary-light);
  color: var(--primary);
  text-decoration: none;
  border: 1px solid var(--primary);
  transition: all 0.2s ease;
}

.tag-chip:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(59, 130, 246, 0.3);
}

.tag-chip.active {
  background: var(--primary);
  color: white;
  box-shadow: 0 0 0 2px var(--primary-light);
}

.tag-chip.query-hit {
  background: var(--warning-light);
  border-color: var(--warning);
  color: var(--warning-hover);
  box-shadow: 0 0 0 2px var(--warning-light);
}

/* Search hit highlighting for tags */
.tag-chip.search-hit,
.top-chip.search-hit {
  background: #ffeb3b;
  border: 2px solid #fbc02d;
  color: #333;
  box-shadow: 0 2px 8px rgba(251, 192, 45, 0.3);
  font-weight: 600;
  text-shadow: none;
  transform: scale(1.02);
  animation: search-pulse 3s ease-in-out infinite, search-pop 0.5s ease-out;
}

.tag-chip.search-hit:hover,
.top-chip.search-hit:hover {
  background: #fff176;
  border-color: #f9a825;
  color: #333;
  transform: scale(1.05);
  box-shadow: 0 3px 10px rgba(251, 192, 45, 0.4);
}

@keyframes search-pulse {
  0%, 100% {
    box-shadow: 0 2px 8px rgba(251, 192, 45, 0.3);
  }
  50% {
    box-shadow: 0 3px 10px rgba(251, 192, 45, 0.5);
  }
}

@keyframes search-pop {
  0% {
    transform: scale(1) rotate(0deg);
    box-shadow: 0 0 0 rgba(251, 192, 45, 0);
  }
  50% {
    transform: scale(1.1) rotate(1deg);
    box-shadow: 0 4px 12px rgba(251, 192, 45, 0.6);
  }
  100% {
    transform: scale(1.02) rotate(0deg);
    box-shadow: 0 2px 8px rgba(251, 192, 45, 0.3);
  }
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .filters-panel {
    padding: var(--spacing-md);
  }
  
  .search-group {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .search-btn {
    width: 100%;
    justify-content: center;
  }
  
  .top-chips,
  .detail-chips {
    gap: var(--spacing-xs);
  }
  
  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
  }
}

/* Modern Pagination Component */
.pagination { 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  margin: var(--spacing-xl) 0; 
  padding: var(--spacing-lg);
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  border: 1px solid var(--btn-border);
}

.pagination-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  width: 100%;
}

.pagination-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.9rem;
  color: var(--text);
}

.page-icon {
  font-size: 1rem;
  opacity: 0.7;
}

.page-text {
  font-weight: 500;
}

.page-count {
  color: var(--muted-text);
  font-size: 0.85rem;
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  justify-content: center;
}

.page-btn { 
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md); 
  border: 1px solid var(--btn-border); 
  border-radius: var(--radius-md); 
  background: var(--action-bg); 
  color: var(--action-text); 
  text-decoration: none; 
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.page-btn:hover:not(.disabled) {
  background: var(--action-bg-hover);
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.page-btn.disabled { 
  pointer-events: none; 
  opacity: 0.5; 
  cursor: not-allowed;
}

.btn-icon {
  font-size: 0.9rem;
}

.btn-text {
  font-size: 0.85rem;
}

/* Specific button styles */
.first-btn,
.last-btn {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
}

.first-btn:hover:not(.disabled),
.last-btn:hover:not(.disabled) {
  background: var(--primary);
  color: white;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.prev-btn,
.next-btn {
  background: var(--success-light);
  color: var(--success-hover);
  border-color: var(--success);
}

.prev-btn:hover:not(.disabled),
.next-btn:hover:not(.disabled) {
  background: var(--success);
  color: white;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .pagination {
    padding: var(--spacing-md);
  }
  
  .pagination-controls {
    gap: var(--spacing-xs);
  }
  
  .page-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8rem;
  }
  
  .btn-text {
    display: none;
  }
  
  .btn-icon {
    font-size: 1rem;
  }
  
  .pagination-info {
    flex-direction: column;
    gap: var(--spacing-xs);
    text-align: center;
  }
}

/* Modern Paper Submission Component */
.paper-submission-panel {
  background: var(--card-bg);
  box-shadow: var(--card-shadow);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  border: 1px solid var(--btn-border);
  transition: box-shadow 0.2s ease;
}

.paper-submission-panel:hover {
  box-shadow: var(--card-shadow-hover, var(--card-shadow));
}

.submission-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--divider);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.submission-header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.submission-header:hover::after {
  transform: scaleX(1);
}

.submission-header:hover {
  background-color: var(--hover-bg);
  border-radius: var(--radius-md);
  margin: calc(-1 * var(--spacing-sm)) calc(-1 * var(--spacing-sm)) var(--spacing-lg) calc(-1 * var(--spacing-sm));
  padding: var(--spacing-sm);
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex: 1;
}

.header-icon {
  font-size: 1.2rem;
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

.submission-header:hover .header-icon {
  opacity: 1;
}

.submission-header-title {
  margin: 0;
  color: var(--text);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.2s ease;
}

.submission-header-title:hover {
  color: var(--primary);
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.toggle-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: var(--spacing-xs);
  opacity: 0.7;
}

.toggle-btn:hover {
  background-color: var(--hover-bg);
  opacity: 1;
}

.toggle-icon {
  font-size: 0.8rem;
  transition: transform 0.3s ease;
  color: var(--text-secondary);
}

.toggle-icon.expanded {
  transform: rotate(180deg);
}

.submission-content {
  display: none;
  transition: opacity 0.3s ease;
  opacity: 0;
  padding-top: 1rem;
}

.submission-content.expanded {
  display: block !important;
  opacity: 1 !important;
}

.submission-badge {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 500;
}

/* Quota Section */
.quota-section {
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  background: var(--code-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--btn-border);
}

.quota-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.quota-icon {
  font-size: 1rem;
}

.quota-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.quota-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.quota-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm);
  background: var(--card-bg);
  border-radius: var(--radius-sm);
  border: 1px solid var(--btn-border);
}

.quota-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted-text);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.quota-value {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace;
}

.quota-value.quota-exhausted {
  color: var(--danger);
}

/* Form Section */
.submission-form {
  margin-bottom: var(--spacing-lg);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.label-icon {
  font-size: 1rem;
}

.label-text {
  font-size: 0.9rem;
}

.input-group {
  display: flex;
  gap: var(--spacing-sm);
  align-items: stretch;
}

.url-input {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--btn-border);
  border-radius: var(--radius-md);
  background: var(--bg);
  color: var(--text);
  font-size: 0.9rem;
  transition: border-color 0.2s ease;
}

.url-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
}

.submit-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--success);
  color: white;
  border: 1px solid var(--success);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.submit-btn:hover:not(:disabled) {
  background: var(--success-hover);
  border-color: var(--success-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.submit-btn:active:not(:disabled) {
  transform: translateY(0);
}

.submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-icon {
  font-size: 0.9rem;
}

.btn-text {
  font-size: 0.9rem;
}

/* Form Info */
.form-info {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-top: var(--spacing-sm);
}

.info-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.8rem;
  color: var(--muted-text);
}

.info-icon {
  font-size: 0.9rem;
}

.info-text {
  font-size: 0.8rem;
}

/* Login Required */
.login-required {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--code-bg);
  border-radius: var(--radius-md);
  border: 1px dashed var(--btn-border);
}

.login-icon {
  font-size: 2rem;
  opacity: 0.7;
}

.login-content {
  flex: 1;
}

.login-title {
  margin: 0 0 var(--spacing-xs) 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.login-text {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted-text);
}

.login-text a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

.login-text a:hover {
  text-decoration: underline;
}

/* Submission Status */
.submission-status {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--code-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--btn-border);
}

.status-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.status-icon {
  font-size: 1.2rem;
}

.status-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.progress-section {
  margin-bottom: var(--spacing-md);
}

.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--btn-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: var(--spacing-xs);
}

.progress-fill {
  height: 100%;
  background: var(--success);
  width: 0%;
  transition: width 0.3s ease;
}

.progress-text {
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--success);
}

.status-details {
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--btn-border);
}

.detail-item {
  font-size: 0.8rem;
  color: var(--muted-text);
  margin-bottom: var(--spacing-xs);
}

/* Download Progress Section */
.download-progress-section {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--primary-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--primary);
}

.download-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.download-icon {
  font-size: 1rem;
}

.download-text {
  font-weight: 600;
  color: var(--primary);
  font-size: 0.9rem;
}

.download-progress-bar {
  width: 100%;
  height: 4px;
  background: rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: var(--spacing-xs);
}

.download-progress-fill {
  height: 100%;
  background: var(--primary);
  width: 0%;
  transition: width 0.3s ease;
}

.download-progress-text {
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.download-details {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--muted-text);
}

.download-speed {
  font-weight: 500;
}

.download-size {
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .paper-submission-panel {
    padding: var(--spacing-lg);
  }
  
  .quota-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
  
  .input-group {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .submit-btn {
    width: 100%;
    justify-content: center;
  }
  
  .form-info {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .login-required {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-sm);
  }
  
  .status-header {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-xs);
  }
}

/* Abstract Trigger and Popover Styles */
.abstract-trigger {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--action-bg);
    border: 1px solid var(--btn-border);
    border-radius: 50%;
    color: var(--action-text);
    cursor: pointer !important;
    transition: all 0.2s ease;
    font-size: 0.9rem;
    margin-left: var(--spacing-xs);
    opacity: 0.8;
    position: relative;
    z-index: 10;
    pointer-events: auto !important;
}

/* Ensure abstract trigger is always visible and clickable */
article .abstract-trigger,
.article-header .abstract-trigger,
h2 .abstract-trigger {
    display: inline-flex !important;
    pointer-events: auto !important;
    cursor: pointer !important;
}

.abstract-trigger:hover {
    background: var(--action-bg-hover);
    opacity: 1;
    transform: scale(1.1);
}

.abstract-trigger:active {
    transform: scale(0.95);
}

.abstract-trigger.loading {
    opacity: 0.5;
    cursor: not-allowed;
}

.abstract-trigger.loading .abstract-trigger-icon {
    animation: spin 1s linear infinite;
}

.abstract-popover {
    position: absolute;
    z-index: 1000;
    background: var(--card-bg);
    border: 1px solid var(--btn-border);
    border-radius: var(--radius-md);
    box-shadow: var(--card-shadow-hover);
    padding: var(--spacing-md);
    max-width: 400px;
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--text);
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: all 0.2s ease;
}

.abstract-popover.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.abstract-popover-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--text);
    font-size: 0.85rem;
}

.abstract-popover-icon {
    font-size: 0.9rem;
    opacity: 0.8;
}

.abstract-popover-text {
    margin: 0;
    padding: 0;
    max-height: 200px;
    overflow-y: auto;
}

.abstract-popover-text.truncated {
    display: -webkit-box;
    -webkit-line-clamp: 6;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.abstract-popover-footer {
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--divider);
    text-align: center;
}

.abstract-popover-footer .abstract-expand-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--primary);
    color: white;
    border: 1px solid var(--primary);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.abstract-popover-footer .abstract-expand-btn:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
}

.abstract-popover-arrow {
    position: absolute;
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 6px solid var(--card-bg);
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
}

.abstract-popover-arrow::before {
    content: '';
    position: absolute;
    width: 0;
    height: 0;
    border-left: 7px solid transparent;
    border-right: 7px solid transparent;
    border-bottom: 7px solid var(--btn-border);
    top: -1px;
    left: -1px;
}