html {
  background: #f6f7f8;
  color: #1f2933;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  line-height: 1.65;
}

body {
  margin: 0;
}

.page {
  box-sizing: border-box;
  max-width: 1040px;
  margin: 0 auto;
  padding: 40px 24px 64px;
  background: #ffffff;
  min-height: 100vh;
}

.profile {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 28px;
  align-items: center;
  padding-bottom: 24px;
  border-bottom: 1px solid #d8dee4;
}

.portrait {
  width: 180px;
  height: auto;
  border: 1px solid #c9d1d9;
}

h1,
h2,
h3 {
  color: #111827;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.25;
}

h1 {
  margin: 0 0 8px;
  font-size: 2.1rem;
}

h2 {
  margin: 34px 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid #e5e7eb;
  font-size: 1.35rem;
}

h3 {
  margin: 0 0 8px;
  font-size: 1.08rem;
}

p,
ul,
ol {
  margin-top: 0;
}

a {
  color: #0f5f8c;
}

a:hover,
a:focus {
  color: #093f5f;
}

.subtitle {
  margin-bottom: 12px;
  color: #4b5563;
  font-family: Arial, Helvetica, sans-serif;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: 22px 0 4px;
  padding-bottom: 18px;
  border-bottom: 1px solid #d8dee4;
  font-family: Arial, Helvetica, sans-serif;
}

.nav a {
  font-weight: 700;
  text-decoration: none;
}

.publication-years {
  margin-top: 22px;
}

.publication-year {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 22px;
  padding: 22px 0;
  border-bottom: 1px solid #e5e7eb;
}

.publication-year h2 {
  position: sticky;
  top: 16px;
  align-self: start;
  margin: 0;
  padding: 0;
  border-bottom: 0;
  color: #374151;
  font-size: 1.2rem;
}

.publication-list {
  margin: 0;
  padding-left: 1.2rem;
}

.publication-list li,
li {
  margin-bottom: 8px;
}

img {
  max-width: 100%;
  height: auto;
}

.project-list {
  display: grid;
  gap: 18px;
}

.project {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 22px;
  align-items: center;
  padding: 18px 0;
  border-bottom: 1px solid #e5e7eb;
}

.project img {
  width: 100%;
  aspect-ratio: 4 / 3;
  height: auto;
  object-fit: cover;
  object-position: center;
  border: 1px solid #d8dee4;
}

.project h2 {
  margin-top: 0;
}

.service-list {
  columns: 1;
  list-style-position: outside;
  padding-left: 1.3rem;
}

.service-list li {
  margin-bottom: 6px;
}

.photo-section {
  margin-bottom: 40px;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
}

.photo-grid img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  height: 100%;
  object-fit: cover;
  border: 1px solid #d8dee4;
  background: #f6f7f8;
}

@media (max-width: 720px) {
  html {
    font-size: 16px;
  }

  .page {
    padding: 24px 16px 48px;
  }

  .profile,
  .project {
    grid-template-columns: 1fr;
  }

  .project {
    align-items: start;
  }

  .project img {
    aspect-ratio: 16 / 9;
  }

  .publication-year {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 18px 0;
  }

  .publication-year h2 {
    position: static;
  }

  .photo-grid {
    grid-template-columns: 1fr;
  }

  .portrait {
    width: 150px;
  }
}