body {
  font-family: 'Google Sans', 'Noto Sans', sans-serif;
}

/* Hero — animated gradient background */
.hero {
  background: linear-gradient(-45deg, #ecf6ff, #e0f2fe, #dbeafe, #e0f7fa);
  background-size: 400% 400%;
  animation: gradientShift 18s ease infinite;
  border-bottom: 1px solid #e0f2fe;
}
@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Title — gradient text */
.publication-title {
  font-weight: 700;
  background: linear-gradient(90deg, #0369a1, #0284c7, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

.publication-authors {
  margin-top: 1rem;
}

.publication-authors .author-block {
  margin-right: 0.5rem;
}

.publication-links .link-block {
  margin: 0.25rem;
  display: inline-block;
}

.publication-links .button {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.publication-links .button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(2, 132, 199, 0.28);
}

/* Figures */
figure.image img {
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
figure.image img:hover {
  transform: scale(1.015);
  box-shadow: 0 8px 32px rgba(2, 132, 199, 0.18);
}

/* Highlights list */
#highlights ul li {
  padding: 0.75rem 1rem;
  margin: 0.5rem 0;
  border-left: 3px solid #0284c7;
  background: #f0f9ff;
  border-radius: 0 6px 6px 0;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
#highlights ul li:hover {
  transform: translateX(6px);
  box-shadow: 0 4px 16px rgba(2, 132, 199, 0.12);
  background: #e0f2fe;
}

/* Section headers — animated underline */
.section h2.title {
  position: relative;
  display: inline-block;
  padding-bottom: 0.4rem;
}
.section h2.title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #0369a1, #06b6d4);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.8s ease;
}
.section[data-aos].aos-animate h2.title::after {
  transform: scaleX(1);
}

/* Tables */
.table {
  border-radius: 8px;
  overflow: hidden;
}
.table thead th {
  background: linear-gradient(90deg, #e0f2fe, #dbeafe);
}

/* BibTeX block */
pre {
  background: #1e1e2e;
  color: #e4e4e7;
  padding: 1.25rem;
  border-radius: 8px;
  overflow-x: auto;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}
pre code {
  color: inherit;
  background: transparent;
}

/* Counter */
.counter {
  color: #0284c7;
  font-variant-numeric: tabular-nums;
}

/* Footer */
.footer {
  background-color: #fafafa;
  padding: 2rem 1.5rem;
}