/* CSS Custom Properties for consistent theming */
:root {
  --primary-color: #2563eb;
  --primary-light: #3b82f6;
  --secondary-color: #64748b;
  --accent-color: #f59e0b;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-accent: #f1f5f9;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --radius: 8px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
}

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-secondary);
  font-size: 16px;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.main-content {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--spacing-xl);
  margin: var(--spacing-xl) 0;
}

@media (max-width: 768px) {
  .main-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
}

/* Typography */
h1 {
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  letter-spacing: -0.025em;
}

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: var(--spacing-lg) 0 var(--spacing-md) 0;
  padding-bottom: var(--spacing-xs);
  border-bottom: 2px solid var(--border-color);
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: var(--spacing-md) 0 var(--spacing-sm) 0;
}

h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: var(--spacing-sm) 0;
}

h5 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--primary-color);
  margin: var(--spacing-lg) 0 var(--spacing-md) 0;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border-color);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Profile section */
.profile-section {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  align-items: start;
}

.profile-image {
  width: 240px;
  height: 260px;
  border-radius: var(--radius);
  object-fit: cover;
  box-shadow: var(--shadow-md);
}

.profile-text {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* Notice box */
.notice-box {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  border: 1px solid #f59e0b;
  border-radius: var(--radius);
  padding: var(--spacing-sm);
  margin: var(--spacing-xs) 0 var(--spacing-xs) 0;
  box-shadow: var(--shadow-sm);
  font-size: 0.9rem;
  line-height: 1.4;
}

.notice-box strong {
  color: #92400e;
}

/* Tab Navigation */
.tab-navigation {
  display: flex;
  background: var(--bg-accent);
  border-radius: var(--radius) var(--radius) 0 0;
  overflow-x: auto;
  margin-bottom: 0;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE and Edge */
}

.tab-navigation::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}

.tab-button {
  background: var(--bg-accent);
  padding: var(--spacing-md) var(--spacing-sm);
  margin: 0;
  cursor: pointer;
  border: none;
  border-right: 1px solid var(--border-color);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.2s ease;
  white-space: nowrap;
  flex: 0 1 auto;
  min-width: fit-content;
  text-align: center;
  line-height: 1.2;
  flex: 1;
}

.tab-button:last-child {
  border-right: none;
}

.tab-button:hover {
  background: var(--border-color);
  color: var(--text-primary);
}

.tab-button.active {
  background: var(--primary-color);
  color: white;
}

/* Tab Content Container */
.tab-content-container {
  background: var(--bg-primary);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  margin-bottom: var(--spacing-lg);
}

.section-content {
  padding: var(--spacing-md);
  display: none;
}

.section-content.active {
  display: block;
}

/* Publications tab layout - completely isolated from main grid */
.publications-container {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--spacing-lg);
  min-height: 600px;
  /* Ensure this grid is independent of parent grid */
  grid-column: 1;
  width: 100%;
}

/* Year navigation sidebar */
.year-navigation {
  background: var(--bg-accent);
  border-radius: var(--radius);
  padding: var(--spacing-sm);
  overflow-y: auto;
  max-height: 600px;
  border: 1px solid var(--border-color);
  position: sticky;
  top: var(--spacing-md);
}

.year-navigation::-webkit-scrollbar {
  width: 6px;
}

.year-navigation::-webkit-scrollbar-track {
  background: var(--bg-accent);
  border-radius: 3px;
}

.year-navigation::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

.year-button {
  display: block;
  width: 100%;
  padding: var(--spacing-sm);
  margin-bottom: var(--spacing-xs);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.year-button:hover {
  background: var(--border-color);
  color: var(--text-primary);
}

.year-button.active {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

/* Publications list */
.publications-list {
  overflow-y: auto;
  max-height: 600px;
  padding-right: var(--spacing-sm);
}

.publications-list::-webkit-scrollbar {
  width: 8px;
}

.publications-list::-webkit-scrollbar-track {
  background: var(--bg-accent);
  border-radius: 4px;
}

.publications-list::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

.publications-list::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Publication cards */
.publication-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

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

.publication-content {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: var(--spacing-sm);
  align-items: start;
}

.publication-image {
  width: 100px;
  height: 100px;
  border-radius: var(--radius);
  object-fit: cover;
  box-shadow: var(--shadow-sm);
}

.publication-info h3 {
  margin: 0 0 var(--spacing-xs) 0;
  font-size: 1rem;
  line-height: 1.3;
}

.publication-info h3 a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

.publication-info h3 a:hover {
  color: var(--primary-light);
}

.publication-authors {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
  font-size: 0.875rem;
  line-height: 1.4;
}

.publication-venue {
  font-style: italic;
  color: var(--text-muted);
  margin-bottom: var(--spacing-xs);
  font-size: 0.875rem;
  line-height: 1.4;
}

.publication-links {
  margin-top: var(--spacing-xs);
}

.publication-links a {
  display: inline-block;
  text-decoration: none;
  padding: 0.2rem 0.6rem;
  border-radius: 16px;
  font-size: 0.75rem;
  margin-right: var(--spacing-xs);
  margin-bottom: var(--spacing-xs);
  transition: all 0.2s ease;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Color-coded link types with emojis */
.publication-links .link-paper {
  background: #3b82f6;
  color: white;
}

.publication-links .link-paper:hover {
  background: #2563eb;
  transform: translateY(-1px);
}

.publication-links .link-data {
  background: #10b981;
  color: white;
}

.publication-links .link-data:hover {
  background: #059669;
  transform: translateY(-1px);
}

.publication-links .link-code {
  background: #f59e0b;
  color: white;
}

.publication-links .link-code:hover {
  background: #d97706;
  transform: translateY(-1px);
}

.publication-links .link-poster {
  background: #8b5cf6;
  color: white;
}

.publication-links .link-poster:hover {
  background: #7c3aed;
  transform: translateY(-1px);
}

.publication-links .link-slides {
  background: #ef4444;
  color: white;
}

.publication-links .link-slides:hover {
  background: #dc2626;
  transform: translateY(-1px);
}

.publication-links .link-video {
  background: #ec4899;
  color: white;
}

.publication-links .link-video:hover {
  background: #db2777;
  transform: translateY(-1px);
}

.publication-links .link-demo {
  background: #06b6d4;
  color: white;
}

.publication-links .link-demo:hover {
  background: #0891b2;
  transform: translateY(-1px);
}

.publication-links .link-blog {
  background: #84cc16;
  color: white;
}

.publication-links .link-blog:hover {
  background: #65a30d;
  transform: translateY(-1px);
}

/* Fallback for any other link types */
.publication-links a:not(.link-paper):not(.link-data):not(.link-code):not(.link-poster):not(.link-slides):not(.link-video):not(.link-demo):not(.link-blog) {
  background: var(--bg-accent);
  color: var(--text-secondary);
}

.publication-links a:not(.link-paper):not(.link-data):not(.link-code):not(.link-poster):not(.link-slides):not(.link-video):not(.link-demo):not(.link-blog):hover {
  background: var(--primary-color);
  color: white;
}

.publication-award {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  color: #92400e;
  padding: 0.2rem 0.6rem;
  border-radius: 16px;
  font-size: 0.75rem;
  font-weight: 600;
  display: inline-block;
  margin-top: var(--spacing-xs);
  margin-bottom: var(--spacing-xs);
  margin-right: var(--spacing-xs);
}

.publication-note {
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-top: var(--spacing-xs);
  font-style: italic;
  line-height: 1.3;
}

/* Sidebar */
.sidebar {
  background: var(--bg-primary);
  border-radius: var(--radius);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  height: fit-content;
  position: sticky;
  top: var(--spacing-md);
}

.sidebar h3 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
  font-size: 1.1rem;
}

.sidebar p {
  font-size: 0.9rem;
  margin-bottom: var(--spacing-sm);
}

.sidebar a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

.sidebar a:hover {
  color: var(--primary-light);
}

.sidebar hr {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: var(--spacing-md) 0;
}

      .sidebar img {
        max-width: 100%;
        height: auto;
        border-radius: var(--radius);
        margin: var(--spacing-sm) 0;
      }

      /* Make the Blablablab logo smaller */
      .sidebar img[alt="Blablablab"] {
        max-width: 60%;
        height: auto;
      }

/* Lists */
ul {
  margin-left: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

li {
  margin-bottom: var(--spacing-xs);
  color: var(--text-secondary);
}

/* Links */
a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--primary-light);
}

/* Responsive design */
@media (max-width: 768px) {
  .profile-section {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .profile-image {
    margin: 0 auto;
  }

  .publication-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .publication-image {
    margin: 0 auto;
  }

  h1 {
    font-size: 2rem;
  }

  .tab-navigation {
    flex-direction: column;
  }

  .tab-button {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .tab-button:last-child {
    border-bottom: none;
  }

  .publications-container {
    grid-template-columns: 1fr;
    height: auto;
  }

  .year-navigation {
    height: auto;
    max-height: 200px;
    margin-bottom: var(--spacing-md);
  }
}