/* ===== publications.css ===== */

.publications-section {
  padding: 50px 0;
}

/* Controls */
.publications-controls {
  margin-bottom: 40px;
}

.publication-search {
  margin-bottom: 30px;
  text-align: center;
}

.search-input {
  width: 100%;
  max-width: 500px;
  padding: 12px 20px;
  border: 1px solid #ddd;
  border-radius: 25px;
  font-size: 16px;
  background: #f9f9f9;
  transition: all 0.3s ease;
}

.search-input:focus {
  outline: none;
  border-color: #FFC109;
  background: #fff;
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.publication-filters {
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: center;
}

.presentation-tag {
  display: inline-block;
  margin-left: 6px;
  padding: 2px 6px;
  background-color: #fffed4; 
  color: #FFC109;            
  border-radius: 10px;
  /* font-size: 0.75rem; */
  font-size: 14px;
  font-weight: 600;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 15px;
  flex-wrap: wrap;
  justify-content: center;
}

.filter-group label {
  font-weight: 500;
  color: #333;
  font-size: 14px;
  white-space: nowrap;
}

.filter-group-status.hidden {
  display: none;
}

.filter-btn {
  padding: 8px 16px;
  border: 1px solid #ddd;
  background: #fff;
  color: #666;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 14px;
}

.filter-btn.active,
.filter-btn:hover {
  background: #FFC109;
  color: #fff;
  border-color: #FFC109;
}

/* Year sections */
.year-section {
  margin-bottom: 40px;
}

.year-title {
  font-size: 28px;
  font-weight: 600;
  color: #333;
  margin-bottom: 25px;
  border-bottom: 2px solid #FFC109;
  padding-bottom: 10px;
}

.publications-list {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

/* Publication card */
.publication-item {
  background: #fff;
  border: 1px solid #eee;
  border-radius: 8px;
  padding: 25px;
  transition: box-shadow 0.3s ease;
}

.publication-item:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.publication-item.featured {
  border-left: 4px solid #FFC109;
  background: linear-gradient(135deg, #fff 0%, #fef8f6 100%);
}

.publication-title {
  font-size: 18px;
  font-weight: 600;
  color: #333;
  margin-bottom: 10px;
  line-height: 1.3;
}

.publication-title-kor {
  font-size: 0.9em;
  font-weight: 400;
  color: #333;
  opacity: 0.8;
}

.publication-authors {
  font-size: 14px;
  color: #666;
  margin-bottom: 6px;
}

.publication-authors-kor {
  font-size: 0.85em;
  color: #666;
  font-weight: 400;
  margin-top: -8px;
  margin-bottom: 6px;
}

.publication-patent-meta {
  margin-top: 4px;
  font-size: 0.9em;
  color: #555;
}

.publication-venue {
  font-size: 14px;
  color: #FFC109;
  margin-bottom: 12px;
}

.publication-description {
  font-size: 14px;
  color: #555;
  line-height: 1.5;
  margin-bottom: 15px;
}

/* Meta chips */
.publication-meta {
  display: flex;
  gap: 15px;
  margin-bottom: 15px;
  flex-wrap: wrap;
}

.publication-date,
.publication-type,
.publication-status {
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 10px;
  font-weight: 500;
}

.publication-date {
  background: #e8f5e8;
  color: #2d5a2d;
}

.publication-type {
  background: #e8f0ff;
  color: #1a5490;
}

.publication-status {
  background: #fff3e0;
  color: #b8860b;
}

/* Keywords */
.publication-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
  margin-bottom: 15px;
}

.keyword {
  background: #f0f7ff;
  color: #0066cc;
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

/* Links */
.publication-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.pub-link {
  font-size: 12px;
  color: #666;
  text-decoration: none;
  padding: 6px 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.pub-link:hover {
  background: #FFC109;
  color: #fff;
  border-color: #FFC109;
}

/* Publications-specific messages (override base) */
.loading-message {
  text-align: center;
  padding: 60px 20px;
  color: #666;
  font-size: 16px;
}

.error-message {
  text-align: center;
  padding: 60px 20px;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 8px;
  color: #dc2626;
}

.error-message h3 {
  margin-bottom: 10px;
  color: #b91c1c;
}

.no-results {
  text-align: center;
  padding: 60px 20px;
  color: #666;
  font-size: 16px;
  background: #f9f9f9;
  border-radius: 8px;
}