/* Cornell Database Group Website Styles - Adapted from SemBench */

body {
  font-family: 'Google Sans', 'Noto Sans', sans-serif;
  background-color: #f8f9fa;
  line-height: 1.6;
}

/* Hero sections */
.hero {
  background: linear-gradient(135deg, #b31b1b 0%, #c41e3a 100%);
}

.hero.is-light {
  background: #ffffff;
  color: #363636;
}

.hero-logo {
  margin-bottom: 1.5rem;
}

.cornell-hero-logo {
  height: 120px;
  width: auto;
  object-fit: contain;
  opacity: 1;
}

.publication-title {
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1rem;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.publication-subtitle {
  color: #ffffff;
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
  text-shadow: 1px 1px 3px rgba(0,0,0,0.2);
}

/* Links */
.publication-links {
  margin-top: 1rem;
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.link-block {
  margin: 0;
}

.external-link.button {
  border: 2px solid #ffffff;
  color: #ffffff;
  background-color: transparent;
  transition: all 0.3s ease;
}

.external-link.button:hover {
  background-color: #ffffff;
  color: #b31b1b;
}

/* Section styling */
.section {
  padding: 3rem 1.5rem;
}

.title.is-2 {
  color: #b31b1b;
  margin-bottom: 2rem;
  font-weight: 700;
}

.title.is-3 {
  color: #4a4a4a;
  margin-bottom: 1.5rem;
  font-weight: 600;
}

.title.is-4 {
  color: #666;
  margin-bottom: 1rem;
}

.title.is-5 {
  color: #888;
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
}

/* Navigation Menu */
.navigation-section {
  background: #ffffff;
  padding: 1rem 1.5rem;
  border-bottom: 3px solid #b31b1b;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navigation-menu {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.nav-item {
  font-size: 1.1rem;
  font-weight: 600;
  color: #2c3e50;
  text-decoration: none;
  padding: 0.5rem 1.5rem;
  border-radius: 8px;
  transition: all 0.3s ease;
  position: relative;
}

.nav-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: linear-gradient(135deg, #b31b1b 0%, #c41e3a 100%);
  transition: width 0.3s ease;
}

.nav-item:hover {
  color: #b31b1b;
  background: rgba(179, 27, 27, 0.05);
}

.nav-item:hover::after {
  width: 80%;
}

/* Institutions Section */
.institutions-section {
  background: #ffffff;
  padding: 2rem 0;
  border-bottom: 1px solid #e9ecef;
  width: 100%;
  overflow: hidden;
}

.institution-logos-wrapper {
  width: 100%;
  display: flex;
  justify-content: center;
  overflow: hidden;
}

.institution-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem 2rem;
}

.institution-logo {
  height: 80px;
  width: auto;
  object-fit: contain;
  opacity: 0.9;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.institution-logo:hover {
  transform: scale(1.1);
  opacity: 1;
}

/* Photo Gallery Section */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
  aspect-ratio: 4/3;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(179, 27, 27, 0.2);
}

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(179, 27, 27, 0.9), transparent);
  color: white;
  padding: 1.5rem 1rem 1rem;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
  transform: translateY(0);
}

.gallery-caption {
  font-size: 1rem;
  font-weight: 600;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

/* Lightbox Styles */
.lightbox {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.95);
  overflow: hidden;
}

.lightbox-content {
  margin: auto;
  display: block;
  max-width: 90%;
  max-height: 85vh;
  object-fit: contain;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: zoomIn 0.3s ease;
}

@keyframes zoomIn {
  from {
    transform: translate(-50%, -50%) scale(0.8);
    opacity: 0;
  }
  to {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 40px;
  color: #ffffff;
  font-size: 50px;
  font-weight: bold;
  cursor: pointer;
  z-index: 1001;
  transition: color 0.3s ease;
}

.lightbox-close:hover {
  color: #b31b1b;
}

.lightbox-prev,
.lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: #ffffff;
  font-size: 40px;
  font-weight: bold;
  cursor: pointer;
  padding: 1rem 1.5rem;
  background: rgba(179, 27, 27, 0.7);
  border-radius: 8px;
  transition: all 0.3s ease;
  user-select: none;
  z-index: 1001;
}

.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(179, 27, 27, 0.9);
  transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
  left: 20px;
}

.lightbox-next {
  right: 20px;
}

.lightbox-caption {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: #ffffff;
  font-size: 1.2rem;
  font-weight: 600;
  text-align: center;
  background: rgba(179, 27, 27, 0.9);
  padding: 1rem 2rem;
  border-radius: 8px;
  max-width: 80%;
  z-index: 1001;
}

/* News Section */
.news-container {
  max-width: 900px;
  margin: 0 auto;
}

.news-list {
  list-style: none;
  padding: 0;
}

.news-list li {
  padding: 0.75rem 1.5rem;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
  border-left: 4px solid #b31b1b;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  transition: all 0.3s ease;
}

.news-list li:hover {
  transform: translateX(5px);
  box-shadow: 0 4px 12px rgba(179, 27, 27, 0.15);
}

.news-list li a {
  color: #b31b1b;
  text-decoration: none;
  font-weight: 600;
}

.news-list li a:hover {
  text-decoration: underline;
}

/* People Section */
.people-category {
  margin-bottom: 3rem;
}

.people-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 1.5rem;
}

.person-card {
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
  border: 1px solid #e9ecef;
  text-align: center;
}

.person-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(179, 27, 27, 0.15);
}

.person-image {
  width: 150px;
  height: 150px;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid #b31b1b;
  box-shadow: 0 4px 15px rgba(179, 27, 27, 0.2);
}

.person-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.person-info {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.person-name {
  font-size: 1.4rem;
  font-weight: 600;
  color: #2c3e50;
  margin-bottom: 0.5rem;
}

.person-name a {
  color: #b31b1b;
  text-decoration: none;
  transition: color 0.3s ease;
}

.person-name a:hover {
  color: #c41e3a;
  text-decoration: underline;
}

.person-role {
  font-size: 1rem;
  color: #666;
  font-weight: 500;
}

/* Small person cards for students */
.person-card-small {
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
  border-radius: 8px;
  padding: 1rem 1.5rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
  border-left: 3px solid #b31b1b;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.person-card-small:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(179, 27, 27, 0.12);
}

.person-image-small {
  width: 120px;
  height: 120px;
  margin: 0 auto 0.75rem;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid #b31b1b;
  box-shadow: 0 3px 10px rgba(179, 27, 27, 0.15);
}

.person-image-small img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.person-name-small {
  font-size: 1rem;
  font-weight: 500;
  color: #2c3e50;
  margin: 0;
}

.person-name-small a {
  color: #b31b1b;
  text-decoration: none;
}

.person-name-small a:hover {
  text-decoration: underline;
}

.person-affiliation {
  font-size: 0.85rem;
  color: #888;
  font-style: italic;
}

/* Projects Section */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.project-card {
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
  border-top: 4px solid #b31b1b;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(179, 27, 27, 0.15);
}

.project-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: #2c3e50;
}

.project-title a {
  color: #b31b1b;
  text-decoration: none;
  transition: color 0.3s ease;
}

.project-title a:hover {
  color: #c41e3a;
  text-decoration: underline;
}

.project-description {
  font-size: 1rem;
  color: #666;
  line-height: 1.5;
}

/* Publications Section */
.publications-container {
  max-width: 1000px;
  margin: 0 auto;
}

.pub-year-section {
  margin-bottom: 1.5rem;
  background: #ffffff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.pub-year-header {
  background: linear-gradient(135deg, #b31b1b 0%, #c41e3a 100%);
  color: #ffffff;
  padding: 1rem 1.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pub-year-header:hover {
  background: linear-gradient(135deg, #a01919 0%, #b01c38 100%);
}

.pub-year-header h3 {
  color: #ffffff !important;
  margin: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.toggle-icon {
  font-size: 1.5rem;
  font-weight: bold;
  transition: transform 0.3s ease;
}

.pub-year-content {
  padding: 1.5rem;
  background: #ffffff;
}

.pub-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.pub-list li {
  padding: 1rem;
  margin-bottom: 0.75rem;
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
  border-left: 3px solid #b31b1b;
  border-radius: 6px;
  line-height: 1.7;
  transition: all 0.3s ease;
}

.pub-list li:hover {
  background: linear-gradient(135deg, #fff5f5 0%, #fff8f8 100%);
  transform: translateX(5px);
  box-shadow: 0 4px 12px rgba(179, 27, 27, 0.1);
}

.pub-list li strong {
  color: #b31b1b;
  font-weight: 700;
}

.pub-list li em {
  color: #666;
  font-style: italic;
}

.pub-list li a {
  color: #b31b1b;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}

.pub-list li a:hover {
  color: #c41e3a;
  text-decoration: underline;
}

.award {
  background: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
  color: #8b4513;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 700;
  margin-left: 0.5rem;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Footer */
.footer {
  background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
  color: #ffffff;
  padding: 3rem 1.5rem 2rem;
  margin-top: 3rem;
}

.footer-content {
  padding: 1rem 0;
}

.footer-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1rem;
}

.footer-info {
  font-size: 1rem;
  color: #ecf0f1;
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.footer-links a {
  color: #ffffff;
  font-size: 1.8rem;
  transition: all 0.3s ease;
}

.footer-links a:hover {
  color: #b31b1b;
  transform: scale(1.2);
}

.footer-copyright {
  font-size: 0.9rem;
  color: #bdc3c7;
  margin-top: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .cornell-hero-logo {
    height: 70px;
  }

  .publication-title {
    font-size: 2rem;
  }

  .publication-subtitle {
    font-size: 1rem;
  }

  .navigation-menu {
    gap: 1rem;
  }

  .nav-item {
    font-size: 1rem;
    padding: 0.4rem 1rem;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .gallery-item {
    aspect-ratio: 16/9;
  }

  .lightbox-prev,
  .lightbox-next {
    font-size: 30px;
    padding: 0.5rem 1rem;
  }

  .lightbox-prev {
    left: 10px;
  }

  .lightbox-next {
    right: 10px;
  }

  .lightbox-close {
    top: 10px;
    right: 20px;
    font-size: 40px;
  }

  .lightbox-caption {
    font-size: 1rem;
    padding: 0.75rem 1rem;
    bottom: 20px;
  }

  .lightbox-content {
    max-width: 95%;
    max-height: 75vh;
  }

  .people-grid {
    grid-template-columns: 1fr;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .person-card {
    padding: 1.5rem;
  }

  .person-image {
    width: 120px;
    height: 120px;
  }

  .person-image-small {
    width: 100px;
    height: 100px;
  }

  .project-card {
    padding: 1.25rem;
  }

  .pub-year-header {
    padding: 0.75rem 1rem;
  }

  .pub-year-content {
    padding: 1rem;
  }

  .pub-list li {
    padding: 0.75rem;
    font-size: 0.95rem;
  }

  .news-list li {
    padding: 0.6rem 1rem;
    font-size: 0.95rem;
  }

  .institution-logo {
    height: 60px;
  }

  .footer-links a {
    font-size: 1.5rem;
  }
}

/* Loading animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.section {
  animation: fadeIn 0.6s ease-out;
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Selection color */
::selection {
  background-color: #b31b1b;
  color: #ffffff;
}

::-moz-selection {
  background-color: #b31b1b;
  color: #ffffff;
}