/* Global settings */
body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    background: #f5f7fa;
    color: #2b2b2b;
}

.container {
    width: 90%;
    max-width: 900px;
    margin: auto;
}

/* Navigation bar */
.navbar {
    background: white;
    padding: 18px 30px;
    display: flex;
    justify-content: space-between;
    position: sticky;
    top: 0;
    font-weight: 600;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.nav-right a {
    margin-left: 20px;
    text-decoration: none;
    color: #333;
}

.nav-right a:hover {
    color: #0077ff;
}

/* Hero section */
.hero {
    text-align: center;
    padding: 90px 20px;
}

.hero h1 {
    font-size: 38px;
    margin-bottom: 10px;
}

.highlight {
    color: #0077ff;
}

.hero-subtitle {
    font-size: 18px;
    color: #555;
}

.hero-button {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 24px;
    background: #0077ff;
    color: white;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
}

.hero-button:hover {
    background: #005fcc;
}

/* Cards */
.card {
    background: white;
    padding: 30px;
    margin: 30px 0;
    border-radius: 10px;
    box-shadow: 0 4px 18px rgba(0,0,0,0.08);
}

.card h2 {
    margin-top: 0;
}

/* Grid for research section */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.grid-item {
    background: #fdfdfd;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

/* Publications */
.pub-list li {
    margin-bottom: 18px;
}

/* Footer */
footer {
    text-align: center;
    padding: 30px;
    color: #666;
    font-size: 14px;
}

.hero-content{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.hero-text{ flex:1 1 420px; }

.hero-photo img{
  width: 145px;
  height: 145px;
  object-fit: cover;
  border-radius: 50%;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}