:root {
  /* Define icon content */
  --icon-project: '🌐';  /* Globe for project page */
  --icon-code: '💻';     /* Computer for code */
  --icon-paper: '📖';    /* Paper for PDF */
  --icon-cite: '"';     /* Books for citation */
  --font-size-paperlink: 12px;
  --font-size-linkicon: 10px;

  --font-size-papertitle: 14.5px;
  --font-size-author: 13.5px;
  --font-size-venue: 12.5px;
}


/* Publication Component */
.publication {
  display: flex;
  gap: 0.7rem;
  margin-bottom: 2rem;
}

.publication-image {
  flex-shrink: 0;
  width: 230px; /* Fixed width */
  border-radius: 8px;
  overflow: hidden;
  position: relative;
  transform: translateZ(0);
}

.publication-image img {
  width: 100%;
  height: auto; /* Auto height based on aspect ratio */
  display: block;
  transition: transform 0.3s ease;
  /* border: 1px solid #e5e7eb; */
}

.publication-image:hover img {
  transform: scale(1.05);
}

.publication-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    transparent 98%,
    rgba(0, 0, 0, 0.05) 100%
  );
  pointer-events: none;
  z-index: 1;
}

.publication-content {
  flex: 1;
  min-width: 0; /* Prevents flex item from overflowing */
}

/* Header: Conference Tag + Title */
.paper-header {
  display: block; /* Changed from inline to block */
  line-height: 1.4;
  margin-bottom: 0.3rem;
}

.venue-tag {
  display: inline-block;
  padding: 0.03rem 0.15rem;
  background-color: #f0f5ff;
  border: 1px solid #c7d2fe;
  border-radius: 4px;
  color: #3b82f6;
  font-size: var(--font-size-venue);
  font-weight: 500;
  margin-right: 0.2rem; /* Space between tag and title */
  vertical-align: middle;
}

.paper-title {
  font-size: var(--font-size-papertitle);
  font-weight: 500;
  /* color: #3676dc; */
  color: #000000;

  text-decoration: none;
  transition: color 0.25s;
}

.paper-title:hover {
  color: #0f6bd5;
  /*   color: #0e38ab; */
}

/* Authors Section */
.authors {
  font-size: var(--font-size-author);
  margin: 0.5rem 0;
  line-height: 1.3;
  color: #4a5568;
}

.author-link {
  font-size: var(--font-size-author);
  color: var(--text-secondary);
  text-decoration: none;
  position: relative;
  transition: color 0.25s;
}

.author-link::after {
  content: "";
  position: absolute;
  left: 50%;  
  bottom: -0.25px; 
  width: 0;
  height: 1.5px;
  background-color: #8ca2c2;
  transition: width 0.4s ease-in-out;
  transform: translateX(-50%); /* place middle */
}

.author-link:hover {
  color: #0f6bd5;
}

.author-link:hover::after {
  width: 95%; 
  background-color: #3b82f6; 
}

.author-self {
  color: var(--text-primary);
  font-weight: 525;
  text-decoration: underline;
  text-underline-offset: 3px; 
  text-decoration-thickness: 1.2px;
  transition: none; 
  font-size: var(--font-size-author);
}

/* Co-author notation style */
.authors sup {
  color: var(--text-secondary);
  font-weight: normal;
}

.authors small {
  color: var(--text-secondary);
  font-style: italic;
  display: inline-block;
}

/* Venue Info */
.venue-info {
  color: #718096;
  font-style: italic;
  margin: 0.3rem 0;
  /* line-height: 1.1; */
  font-size: var(--font-size-venue);
}

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

.paper-link {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2px 6px; 
  height: 24px;      /* fixed height */
  box-sizing: border-box;  /* ensure padding will not override fixed height */
  color: var(--text-tertiary);
  text-decoration: none;
  font-size: var(--font-size-paperlink);
  font-family: var(--font-primary);
  font-weight: 500;
  border-radius: 6px;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
  min-width: 50px;
  text-align: center;
  white-space: nowrap;
}

.paper-link:hover {
  color: #1a56db;
  background: linear-gradient(135deg, #e7eefa 0%, #f0f5ff 100%);
  border-color: #c7d2fe;
  transform: translateY(-1px);
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

/* Icon styles for different link types */
.paper-link[data-type="project"]::before, 
.paper-link[data-type="code"]::before, 
.paper-link[data-type="paper"]::before, 
.paper-link[data-type="cite"]::before {
  margin-right: 4px;
  font-size: var(--font-size-linkicon);
  line-height: 1;
  display: inline-block;
  vertical-align: middle;
}

.paper-link[data-type="project"]::before {
  content: var(--icon-project);
}

.paper-link[data-type="code"]::before {
  content: var(--icon-code);
}

.paper-link[data-type="paper"]::before {
  content: var(--icon-paper);
}

.paper-link[data-type="cite"]::before {
  content: var(--icon-cite);
  font-size: 1rem;
  font-weight: bold;
  margin-right: 0.3rem;
  margin-left: 0.1rem;
  color: #6d85c4;
}

/* Responsive Design */
@media (max-width: 768px) {
  .paper-header {
    flex-direction: column;
    gap: 0.4rem;
  }

  .publication {
    flex-direction: column;
  }

  .publication-image {
    width: 100%;
    max-width: 300px;
    margin: 0 auto 1rem auto;
  }
}


/* Citation Popup Styles */
.citation-popup {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: white;
  padding: 16px;           
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  z-index: 1000;
  min-width: 280px;         
  max-width: 500px;        
  width: 90%;
  opacity: 1;
  transition: opacity 0.15s ease-out;
}

.citation-popup.hide {
  opacity: 0;
}

.citation-popup pre {
  background: #f5f5f5;
  padding: 10px;
  border-radius: 4px;
  overflow-x: auto;
}

.popup-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0);
  z-index: 999;
  transition: background-color 0.3s ease-out;
}

.popup-backdrop.show {
  background: rgba(0, 0, 0, 0.207);

}

.popup-backdrop.hide {
  background: rgba(0,0,0,0);
}

.popup-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.popup-header h3 {
  flex-grow: 1;
  text-align: center;
  margin: 0;
  font-size: 14px;        
}

.popup-close {
  position: absolute;
  top: -10px;
  right: -10px;
  width: 20px;            
  height: 20px;          
  border-radius: 50%;
  border: none;
  background: #f3f4f6;
  color: #4b5563;
  font-size: 16px;        
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s;
}

.popup-close:hover {
  background: #e5e7eb;
  color: #1f2937;
}

/* cite latex bib */
.citation-content {
  background: #f8fafc;
  padding: 0.8rem;          
  border-radius: 4px;
  margin: 0.8rem 0;       
  font-family: "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.7rem;     
  line-height: 1.3;     
  overflow-x: auto;
  white-space: pre;
  tab-size: 2;
  -moz-tab-size: 2;
}

.popup-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;             
  margin-top: 1.2rem;    
}

.popup-button {
  min-width: 100px;     
  padding: 0.5rem 1rem;    
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  background: #ffffff;
  color: #374151;
  font-size: 0.7rem;  
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.popup-button:hover {
  color: #1a56db;
  background: linear-gradient(135deg, #e7eefa 0%, #f0f5ff 100%);
  border-color: #c7d2fe;
  transform: translateY(-1px);
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.popup-copy {
  position: relative;
}

.popup-copy[data-copied]::after {
  content: 'Copied to clipboard!';
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: #4b5563;
  color: white;
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
  font-size: 0.65rem;
  white-space: nowrap;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  opacity: 0;
  animation: fadeOut 1.5s forwards; /* Add forwards to maintain final state */
}

@keyframes fadeOut {
  0% { opacity: 1; }
  70% { opacity: 1; }
  100% { 
    opacity: 0;
    visibility: hidden; /* Add this line */
  }
}

/* 添加深色主题下引用弹出窗口的样式 */
[data-theme="dark"] .citation-popup {
  background: #272a36;
  color: #e3e7ef;
  border: 1px solid #3a3f4b;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  opacity: 1; /* 确保初始状态是完全显示的 */
  transition: opacity 0.15s ease-out; /* 添加过渡效果 */
}

[data-theme="dark"] .popup-backdrop.show {
  background: rgba(0, 0, 0, 0.6);
  transition: background-color 0.3s ease-out; /* 添加过渡效果 */
}

[data-theme="dark"] .citation-content {
  background: #1e2129;
  color: #b8c7e0;
  border: 1px solid #383c4a;
}

[data-theme="dark"] .popup-close {
  background: #383c4a;
  color: #e3e7ef;
}

[data-theme="dark"] .popup-close:hover {
  background: #4a4f5e;
  color: #ffffff;
}

[data-theme="dark"] .popup-button {
  background: #2d3039;
  color: #b8c7e0;
  border: 1px solid #3a3f4b;
}

[data-theme="dark"] .popup-button:hover {
  background: linear-gradient(135deg, #2d3748 0%, #3a4a69 100%);
  border-color: #5a6c8f;
  color: #d2e0f7;
}

[data-theme="dark"] .popup-copy[data-copied]::after {
  background: #4a5568;
  color: #ffffff;
}

[data-theme="dark"] .popup-header h3 {
  color: #d2e0f7;
}

/* 添加深色主题下引用弹出窗口退出动画的样式 */
[data-theme="dark"] .citation-popup.hide {
  opacity: 0;
  transition: opacity 0.15s ease-out;
}

[data-theme="dark"] .popup-backdrop.hide {
  background: rgba(0, 0, 0, 0);
  transition: background-color 0.3s ease-out;
}