:root{
  --bg:#fafafa;
  --card:#ffffff;
  --muted:#6b7280;
  --accent:#007a3d;
  --accent-dark:#005a2d;
  --max-width:1000px;
  --radius:8px;
  --mono: Helvetica, Arial, sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0;font-family:var(--mono);background:var(--bg);color:#111}
.container{max-width:var(--max-width);margin:0 auto;padding:24px}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.site-header{background:linear-gradient(90deg, #ffffffcc, #ffffffcc);border-bottom:1px solid #e6e6e6}
.brand{font-weight:700;color:var(--accent);text-decoration:none;font-size:1.15rem}
.main-nav a{margin-left:16px;color:#111;text-decoration:none;padding:8px;border-radius:6px}
.main-nav a[aria-current="page"]{background:#f3f4f6}
.hero{padding:60px 0;background:linear-gradient(180deg,#ffffff, #f8fbff)}
.hero h1{margin:0 0 8px;font-size:2rem}
.lead{margin:0 0 16px;color:var(--muted)}
.cta .btn{display:inline-block;padding:10px 16px;border-radius:8px;background:var(--accent);color:#fff;text-decoration:none;margin-right:8px}
.cta .btn.ghost{background:transparent;color:var(--accent);border:1px solid #dbeafe}
.content{padding:36px 24px;background:transparent}
.content h1{margin-top:0}
.publications{padding-left:1rem}
.publications li{margin:12px 0}
.site-footer{border-top:1px solid #eaeaea;padding:16px 0;background:transparent;color:var(--muted);text-align:center}
@media (max-width:600px){
  .header-inner{flex-direction:row;gap:8px}
  .main-nav{display:flex;flex:1;justify-content:flex-end}
  .hero{padding:36px 0}
  .container{padding:16px}
}
/* Small utility */
.btn{transition:background .12s ease}
.btn:hover{background:var(--accent-dark)}
/* Project title and description styles */
.project-title {
  font-weight: bold;
  color: #000;
}
.project-title-link {
  font-weight: bold;
  color: var(--accent);
  text-decoration: none;
}
.project-title-link:hover {
  text-decoration: underline;
}
.project-description {
  color: var(--muted);
  margin-top: 0.5em;
  margin-bottom: 1em;
}
/* Publication header container */
.publication-header {
  display: flex;
  align-items: baseline;
  gap: 0.5em;
  flex-wrap: wrap;
}
/* Toggle button for abstracts */
.toggle-description {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-size: 0.9em;
  padding: 0;
  text-decoration: underline;
  font-family: inherit;
}
.toggle-description:hover {
  color: var(--accent-dark);
}
.toggle-description:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
/* Hero photo layout */
.hero-content {
  display: flex;
  align-items: center;
  gap: 3rem;
}
.hero-text {
  flex: 1;
}
.hero-image {
  flex-shrink: 0;
  text-align: center;
}
.profile-photo {
  width: 280px;
  height: 280px;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid #fff;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.photo-caption {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  color: var(--muted);
  font-style: italic;
}
@media (max-width:768px){
  .hero-content {
    flex-direction: column;
    text-align: center;
  }
  .profile-photo {
    width: 220px;
    height: 220px;
  }
}