/**
 * Publications Page Styles
 * Styles specific to the publications listing and filtering
 */

/* Filter Section */
.filter-section {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.filter-controls {
  display: grid;
  grid-template-columns: auto auto auto auto auto auto;
  gap: var(--space-md) var(--space-xl);
  align-items: center;
}

/* Tablet: 2 pairs per row (Sort+Filter on first row, View on second row) */
@media (max-width: 1024px) {
  .filter-controls {
    grid-template-columns: auto auto auto auto;
    gap: var(--space-md) var(--space-xl);
  }
}

/* Mobile: Each pair gets its own row */
@media (max-width: 640px) {
  .filter-controls {
    grid-template-columns: auto auto;
    gap: var(--space-md) var(--space-lg);
  }
}

/* Very small mobile: Stack label above control */
@media (max-width: 480px) {
  .filter-controls {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
  
  .filter-controls > div {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
  }
}

.filter-label {
  font-weight: 600;
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
}

.filter-select {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

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

.filter-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-alpha);
}

/* View Toggle */
.view-toggle {
  display: flex;
  gap: var(--space-xs);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 2px;
}

.view-toggle-btn {
  padding: var(--space-xs) var(--space-sm);
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, color 0.2s ease;
  min-width: 36px;
  min-height: 36px;
}

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

.view-toggle-btn.active {
  background: var(--color-primary);
  color: white;
}

.view-toggle-btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Stats Section */
.stats-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.stat-card {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-value {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Publications Grid */
.publications-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

/* Grid View (Compact) - 3 columns */
.publications-grid.view-grid {
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}

@media (max-width: 768px) {
  .publications-grid,
  .publications-grid.view-grid {
    grid-template-columns: 1fr;
  }
}

/* Publication Card */
.publication-card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  overflow: visible;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  height: 100%;
  will-change: transform;
  transform-style: preserve-3d;
  backface-visibility: hidden;
}

.publication-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* List View (Expanded) - Horizontal layout */
.publications-grid:not(.view-grid) .publication-card {
  flex-direction: row;
  height: auto;
}

@media (max-width: 768px) {
  .publications-grid:not(.view-grid) .publication-card {
    flex-direction: column;
  }
}

/* Thumbnail */
.publication-thumbnail {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-bg-tertiary);
  flex-shrink: 0;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* List view - fixed width for thumbnail */
.publications-grid:not(.view-grid) .publication-thumbnail {
  width: 300px;
  min-width: 300px;
}

@media (max-width: 768px) {
  .publications-grid:not(.view-grid) .publication-thumbnail {
    width: 100%;
    min-width: unset;
  }
}

.publication-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  transition: opacity 0.3s ease;
  background: var(--color-bg-tertiary);
}

.publication-thumbnail .thumbnail-animated {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
}

.publication-card:hover .thumbnail-animated {
  opacity: 1;
}

/* Content */
.publication-content {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.publication-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
  line-height: 1.3;
}

.publication-authors {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
  line-height: 1.5;
}

.publication-authors .author-primary {
  font-weight: 600;
  color: var(--color-text-primary);
}

.publication-authors .equal-contribution {
  font-size: 0.75em;
  font-weight: normal;
  color: var(--color-text-secondary);
  margin-left: 0.1em;
}

.publication-authors a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.publication-authors a:hover {
  color: var(--color-primary);
}

.publication-venue {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  align-items: center;
}

.publication-venue strong {
  color: var(--color-text-primary);
}

.publication-venue a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-base);
}

.publication-venue a:hover {
  color: var(--color-primary);
}

.publication-venue a:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Workshop Names */
.workshop-names {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-xs);
}

.workshop-link {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

.workshop-link:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

.workshop-link:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Award Badge */
.publication-award {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: linear-gradient(135deg, #ffd700, #ffed4e);
  color: #8b6914;
  font-size: var(--font-size-xs);
  font-weight: 700;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  width: fit-content;
}

.publication-award::before {
  content: "🏆";
  font-size: var(--font-size-sm);
}

/* Links */
.publication-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-top: auto;
}

.publication-card .publication-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  text-decoration: none;
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  transition: background 0.2s ease, transform 0.2s ease;
  white-space: nowrap;
  border: none;
}

.publication-card .publication-link:hover {
  background: var(--color-primary);
  color: white;
  transform: translateY(-1px);
}

.publication-card .publication-link:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Loading and Empty States */
.loading,
.no-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-3xl);
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.publication-card {
  animation: fadeIn 0.3s ease-out;
}

/* Screen reader only announcement */
#filter-announcement {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Publications Preview (Home Page) */
.publications-preview {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.publications-preview .publications-grid {
  gap: var(--space-lg);
}

/* Print Styles */
@media print {
  .filter-section,
  .stats-section {
    display: none;
  }
  
  .publication-card {
    break-inside: avoid;
    page-break-inside: avoid;
  }
  
  .publication-link {
    color: var(--color-text-primary) !important;
    background: transparent !important;
  }
  
  .publication-link::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    color: var(--color-text-secondary);
  }
}