* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
}

body {
  margin: 0;
  color: #111827;
  background: #fff;
  font-family: Georgia, "Times New Roman", Times, serif;
  line-height: 1.625;
}

.container {
  width: 100%;
  max-width: 64rem;
  margin-inline: auto;
  padding-inline: 1rem;
}

.site-header {
  padding-top: 2rem;
  padding-bottom: 1rem;
  text-align: center;
}

h1,
h2 {
  font-weight: 400;
  line-height: 1.2;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: 1.875rem;
}

.subtitle {
  margin: 0;
  color: #4b5563;
  font-size: 1.125rem;
}

.banner {
  display: block;
  width: 100%;
  height: 8rem;
  margin-bottom: 2rem;
  border-radius: 0.5rem;
  object-fit: cover;
  object-position: center;
  box-shadow: 0 1px 2px rgb(0 0 0 / 5%);
}

.biography-layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.portrait {
  display: block;
  width: 100%;
  max-width: 24rem;
  height: auto;
  margin-inline: auto;
  border: 2px solid #000;
  border-radius: 0.5rem;
  box-shadow: 0 10px 15px -3px rgb(0 0 0 / 10%), 0 4px 6px -4px rgb(0 0 0 / 10%);
}

.contact {
  margin: 1rem 0 0;
  text-align: center;
  font-size: 1rem;
}

h2 {
  margin: 0 0 1.5rem;
  font-size: 1.5rem;
}

.biography {
  min-width: 0;
  padding-bottom: 3rem;
  color: #1f2937;
  font-size: 1rem;
}

.biography p {
  margin: 0 0 1rem;
}

a {
  color: #2563eb;
  text-underline-offset: 0.15em;
}

a:hover {
  color: #1e40af;
}

a:focus-visible {
  outline: 2px solid #1e40af;
  outline-offset: 4px;
  border-radius: 2px;
}

.further-reading {
  padding-top: 0.5rem;
  font-size: 0.9375rem;
}

.further-reading span {
  padding-inline: 0.25rem;
}

.site-footer {
  margin-top: 3rem;
  padding-block: 2rem;
  border-top: 1px solid #e5e7eb;
  color: #4b5563;
  text-align: center;
}

.site-footer p {
  margin: 0;
}

.site-footer .photo-credit {
  margin-top: 0.75rem;
  font-size: 0.75rem;
}

.photo-credit a {
  color: inherit;
}

.skip-link {
  position: absolute;
  top: -10rem;
  left: 1rem;
  padding: 0.5rem 1rem;
  background: #fff;
  z-index: 1;
}

.skip-link:focus {
  top: 1rem;
}

@media (min-width: 640px) {
  .container {
    padding-inline: 1.5rem;
  }

  .site-header {
    text-align: left;
  }

  h1 {
    font-size: 2.25rem;
  }

  h2 {
    font-size: 1.875rem;
  }

  .banner {
    height: 10rem;
  }

  .biography {
    font-size: 1.125rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding-inline: 2rem;
  }

  .biography-layout {
    flex-direction: row;
    gap: 3rem;
  }

  .portrait-column {
    flex: 1;
    min-width: 0;
  }

  .biography {
    flex: 2;
  }
}