* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Aptos, Arial, Helvetica, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  color: #222;
  background: #fff;
  padding: 30px 40px;
  max-width: 960px;
}

a {
  color: #003399;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

a:visited {
  color: #003399;
}

/* Top nav */
nav {
  font-size: 13px;
  margin-bottom: 20px;
}

nav a {
  margin-right: 4px;
}

nav .sep {
  margin-right: 4px;
  color: #999;
}

/* Name heading */
h1 {
  font-size: 26px;
  font-weight: normal;
  margin-bottom: 16px;
}

/* Two-column layout */
.columns {
  display: flex;
  gap: 40px;
}

.sidebar {
  width: 280px;
  flex-shrink: 0;
  font-size: 14px;
  line-height: 1.6;
}

.sidebar p {
  margin-bottom: 16px;
}

.sidebar h3 {
  font-size: 14px;
  font-weight: bold;
  margin-bottom: 6px;
}

.sidebar ul {
  list-style: none;
  margin-bottom: 16px;
}

.sidebar ul li {
  margin-bottom: 2px;
}

.main {
  flex: 1;
}

/* Project grid */
.projects {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.project {
  min-width: 0;
}

.project a {
  display: block;
}

.project img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
  margin-bottom: 4px;
}

.project .caption {
  font-size: 12px;
  color: #444;
}

/* Project pages */
.project-page .sidebar h1 {
  font-size: 28px;
  margin-bottom: 20px;
}

.project-page .sidebar .separator {
  border: none;
  border-top: 1px dotted #ccc;
  margin: 16px 0;
}

.project-page .sidebar h3 {
  margin-top: 4px;
}

.project-page .main img {
  max-width: 100%;
  height: auto;
  display: block;
  margin-bottom: 20px;
}

.project-page .main p {
  margin-bottom: 16px;
  line-height: 1.6;
}

/* Research page */
.research-item {
  display: flex;
  gap: 20px;
  margin-bottom: 28px;
}

.research-item > a {
  flex-shrink: 0;
}

.research-item img {
  width: 120px;
  height: 120px;
  object-fit: cover;
  display: block;
}

.research-item .details h3 {
  font-size: 15px;
  margin-bottom: 2px;
}

.research-item .details .authors {
  font-style: italic;
  font-size: 13px;
  color: #555;
  margin-bottom: 4px;
}

.research-item .details p {
  font-size: 14px;
  margin-bottom: 0;
  line-height: 1.5;
}

/* About page */
.about-page .sidebar img.portrait {
  width: 100%;
  max-width: 260px;
  height: auto;
  display: block;
  margin-bottom: 20px;
}

.about-page .sidebar .contact {
  font-size: 13px;
  color: #555;
  margin-top: 16px;
}

.about-page .main p {
  margin-bottom: 16px;
  line-height: 1.6;
}

.about-page .main h3 {
  font-size: 15px;
  margin-bottom: 4px;
}

/* Mobile responsiveness */
@media (max-width: 700px) {
  body {
    padding: 20px 20px;
  }

  .columns {
    flex-direction: column;
    gap: 24px;
  }

  .sidebar {
    width: 100%;
  }

  .projects {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .research-item {
    gap: 14px;
  }

  .research-item img {
    width: 80px;
    height: 80px;
  }

  .about-page .sidebar img.portrait {
    max-width: 200px;
  }
}