@import url('https://fonts.googleapis.com/css2?family=Crimson+Text:ital,wght@0,400;0,600;0,700;1,400&family=Inter:wght@300;400;500;600;700&family=Kalam:wght@300;400;700&display=swap');

/* Base Styles */
body {
  font-family: 'Inter', sans-serif;
  color: #0f172a; /* slate-900 */
  background-color: #f8fafc; /* slate-50 */
  line-height: 1.6;
}

/* Typography Overrides */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Crimson Text', serif;
}

.font-serif {
  font-family: 'Crimson Text', serif;
}

.font-sans {
  font-family: 'Inter', sans-serif;
}

/* Glassmorphism Navigation */
.glass {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.03);
}

.nav-item {
  position: relative;
  font-weight: 500;
  color: #475569; /* slate-600 */
  transition: color 0.2s;
}

.nav-item:hover {
  color: #1e293b; /* slate-800 */
}

.nav-item::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: #d4a562; /* accent */
  transition: width 0.3s ease;
}

.nav-item:hover::after {
  width: 100%;
}

/* Hero Section */
.profile-image-container {
  position: relative;
  z-index: 10;
}

/* Section Styling */
section {
  position: relative;
}

.section-header h2 {
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 40%;
  height: 3px;
  background-color: rgba(212, 165, 98, 0.3); /* accent with opacity */
  z-index: -1;
}

/* Main Layout Grid */
.grid-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 1024px) {
  .grid-layout {
    grid-template-columns: 320px 1fr;
    gap: 4rem;
    align-items: start;
  }
}

/* Cards */
.news-card, .research-card, .contact-card {
  transition: all 0.3s ease;
}

.news-card:hover, .research-card:hover, .contact-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  border-color: #cbd5e1; /* slate-300 */
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* Utility */
.text-accent {
  color: #d4a562;
}

.bg-accent {
  background-color: #d4a562;
}

.border-accent {
  border-color: #d4a562;
}

.hover\:text-accent:hover {
  color: #d4a562;
}

/* Research Highlights */
details summary {
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: justify;
}

/* New Publication List Styles */
.pub-year-group {
  margin-bottom: 2rem;
}

.pub-year-header {
  font-family: 'Inter', sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  font-style: italic;
  letter-spacing: 0.05em;
  color: #1e293b;
  margin-bottom: 1rem;
  border-bottom: 2px solid #e2e8f0;
  padding-bottom: 0.25rem;
  display: inline-block;
}

.pub-list-ul {
  list-style-type: disc;
  padding-left: 1.5rem;
}

.pub-list-item {
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

.pub-line-1 {
  font-size: 1rem;
  margin-bottom: 0.1rem;
}

.pub-venue-tag {
  font-weight: 700;
  margin-right: 0.5rem;
}

.pub-title-text {
  font-weight: 600;
  color: #1e293b;
}

.pub-link-btn {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.1rem 0.5rem;
  border: 1px solid #cbd5e1;
  border-radius: 4px;
  color: #475569;
  margin-left: 0.5rem;
  text-decoration: none;
  transition: all 0.2s;
  vertical-align: middle;
  background-color: white;
}

.pub-link-btn:hover {
  border-color: #d4a562;
  color: #d4a562;
  background-color: #fffbeb;
}

.tag-arxiv {
  color: #2563eb; /* Blue for Arxiv */
}

.tag-conference {
  color: #dc2626; /* Red for Conference/Journal */
}

.pub-title-link {
  color: #1e293b;
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.pub-title-link:hover {
  color: #d4a562;
  border-bottom-color: #d4a562;
}

.pub-line-2 {
  font-size: 0.95rem;
  color: #4b5563; /* neutral-600 */
  margin-bottom: 0.1rem;
}

.pub-line-2 strong, .pub-line-2 b {
  color: #1e293b; /* primary */
  font-weight: 600;
  text-decoration: underline;
}

.pub-line-3 {
  font-size: 0.9rem;
  color: #64748b; /* slate-500 */
  font-style: italic;
}

/* Publication Card Typography */
.pub-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.pub-authors {
  font-size: 0.95rem;
  color: #64748b;
  margin-bottom: 0.5rem;
}

.pub-venue {
  font-size: 0.9rem;
  font-weight: 500;
  color: #64748b;
  margin-bottom: 1rem;
  font-style: italic;
}

.pub-highlight {
  font-size: 0.85rem;
  color: #d97706;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

/* Publication CCF Ranks and Badges */
.pub-badge-highlight {
  display: inline-block;
  background-color: #ef4444;
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  margin-right: 0.5rem;
  vertical-align: middle;
  line-height: 1.2;
}

.ccf-rank {
  font-weight: 700;
  margin-left: 0.3rem;
}

.ccf-a {
  color: #dc2626;
}

.ccf-b {
  color: #2563eb;
}

.ccf-c {
  color: #16a34a;
}

.publication:hover {
  border-color: #d4a562;
  box-shadow: 0 10px 30px -10px rgba(0,0,0,0.05);
  transform: translateY(-2px);
}

/* Venue Logo - Hidden for Text-Only Style */
.venue-logo {
  display: none;
}

/* News Item Dashed Line */
.news-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 1.5rem;
  align-items: baseline;
  padding-bottom: 0.5rem;
  border-bottom: 1px dashed #e2e8f0;
}

.news-date {
  font-family: 'Kalam', cursive;
  font-weight: 400;
  font-size: 0.9rem;
  color: #64748b;
  white-space: nowrap;
}

.news-content {
  font-family: 'Kalam', cursive;
  font-size: 0.95rem;
  color: #334155;
  line-height: 1.5;
}

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

/* Formal Text */
.formal-font {
  font-family: 'Times New Roman', Times, serif;
  font-size: 1.05rem;
  line-height: 1.6;
}

/* Service Section */
.service-category {
  padding-bottom: 1.5rem;
  border-bottom: 1px solid #f1f5f9;
  margin-bottom: 1.5rem;
}

.service-category:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.service-category h3 {
  font-size: 1rem;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 0.35rem;
  font-family: 'Inter', sans-serif;
}

.service-items {
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  color: #475569;
  line-height: 1.5;
}

/* Honors Section Styling */
.honor-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 1.5rem;
  align-items: baseline;
  margin-bottom: 1.5rem;
}

.honor-year {
  font-family: 'Courier New', Courier, monospace;
  font-weight: 700;
  font-size: 0.9rem;
  color: #d4a562;
  text-align: right;
  white-space: nowrap;
}

.honor-content h3 {
  font-size: 1rem;
  font-weight: 600;
  color: #1e293b;
}

/* Publication Thumbnail & Layout */
.pub-content-wrapper {
  width: 100%;
}

.pub-list-item.with-thumbnail-expanded {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  padding: 1rem;
  background-color: white;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.pub-thumbnail-box {
  width: 200px;
  flex-shrink: 0;
  order: -1;
  border: none;
  padding: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.pub-thumbnail-box img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.pub-list-item.with-thumbnail-expanded .pub-content-wrapper {
  flex-grow: 1;
}

.pub-list-item.with-thumbnail-expanded .pub-line-1 {
  margin-bottom: 0.5rem;
}

.pub-list-item.with-thumbnail-expanded .pub-title-text {
  font-size: 1.1rem;
}

.pub-btn-preview {
  cursor: pointer;
}

.pub-btn-preview.active {
  background-color: #1e293b;
  color: white;
  border-color: #1e293b;
}

/* Make sure mobile layout stacks */
@media (max-width: 640px) {
  .pub-list-item.with-thumbnail-expanded {
    flex-direction: column;
  }
  .pub-thumbnail-box {
    width: 100%;
    max-width: 300px;
    margin-top: 0.5rem;
  }
}