* {
  box-sizing: border-box;
}

html {
  overflow-y: scroll;
  scrollbar-gutter: stable;
}

body {
  margin: 0;
  color: #222;
  background: white;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

a {
  color: #174f7a;
}

a:hover {
  color: #111;
}

.site-header {
  border-bottom: 1px solid #ddd;
}

.header-inner {
  display: flex;
  max-width: 900px;
  margin: 0 auto;
  padding: 18px 24px 0;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
}

.site-name {
  padding-bottom: 12px;
  color: #222;
  font-size: 18px;
  font-weight: bold;
  text-decoration: none;
}

.tabs {
  display: flex;
  gap: 24px;
}

.tabs a {
  padding-bottom: 12px;
  border-bottom: 2px solid transparent;
  color: #555;
  font-size: 14px;
  text-decoration: none;
}

.tabs a:hover,
.tabs a[aria-current="page"] {
  border-bottom-color: #222;
  color: #222;
}

main,
.site-footer {
  max-width: 900px;
  margin: 0 auto;
  padding-right: 24px;
  padding-left: 24px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 20px;
}

h3 {
  font-size: 17px;
}

.about {
  display: grid;
  max-width: 900px;
  padding: 48px 0 60px;
  grid-template-columns: minmax(0, 1fr) 400px;
  gap: 50px;
}

.about h1 {
  margin-bottom: 10px;
}

.about .position {
  margin-bottom: 25px;
  color: #555;
}

.about h2 {
  margin: 28px 0 8px;
}

.about ul {
  padding-left: 22px;
}

.about .contact {
  margin-top: 28px;
  color: #555;
  font-size: 14px;
}

.portrait-wrap {
  margin: 0;
}

.portrait {
  display: block;
  width: 400px;
  height: 600px;
  object-fit: cover;
  object-position: center top;
}

.simple-page {
  max-width: 740px;
  min-height: calc(100vh - 150px);
  padding-top: 48px;
  padding-bottom: 60px;
}

.simple-page > h1 {
  margin-bottom: 10px;
}

.simple-page > section {
  margin-top: 38px;
}

.simple-page section + section {
  margin-top: 46px;
}

.simple-page ul,
.simple-page ol {
  padding-left: 24px;
}

.entries article {
  margin-bottom: 24px;
}

.entries h3 {
  margin-bottom: 3px;
}

.entries p {
  margin-bottom: 3px;
  color: #555;
}

.entries .placeholder {
  font-style: italic;
}

.publications {
  margin-top: 14px;
}

.publications li {
  padding-left: 5px;
  margin-bottom: 24px;
}

.site-footer {
  padding-top: 22px;
  padding-bottom: 28px;
  color: #666;
  font-size: 12px;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 850px) {
  .about {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .about .portrait-wrap {
    width: min(400px, 100%);
    grid-row: 1;
  }

  .portrait {
    width: 100%;
    height: auto;
    aspect-ratio: 4 / 7;
  }
}

@media (max-width: 680px) {
  .header-inner {
    display: block;
    padding: 16px 18px 0;
  }

  .site-name {
    display: inline-block;
    padding-bottom: 8px;
  }

  .tabs {
    overflow-x: auto;
    gap: 18px;
  }

  .tabs a {
    white-space: nowrap;
  }

  main,
  .site-footer {
    padding-right: 18px;
    padding-left: 18px;
  }

  .about {
    padding: 38px 0 48px;
    gap: 25px;
  }

  .about .portrait-wrap {
    width: min(400px, 100%);
  }

  .simple-page {
    padding-top: 38px;
    padding-bottom: 48px;
  }
}