:root {
  --page: #e9e9e9;
  --content: #ffffff;
  --text: #202020;
  --muted: #555555;
  --line: #cccccc;
  --tab: #d8d8d8;
  --tab-active: #ffffff;
  --link: #1e5f8c;
  --heading: #315f52;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--text);
  background: var(--page);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--text);
  font-size: 16px;
  line-height: 1.5;
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site {
  width: min(900px, calc(100% - 28px));
  margin: 28px auto;
  border: 1px solid var(--line);
  background: var(--content);
}

.site-header {
  padding: 24px 28px 0;
  border-bottom: 1px solid var(--line);
  background: #f7f7f7;
}

.site-header h1 {
  margin: 0 0 18px;
  font-size: 2.35rem;
  font-weight: normal;
  line-height: 1.1;
}

.site-header h1 a {
  color: var(--text);
}

.site-header h1 a:hover {
  text-decoration: none;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.tabs a {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-bottom: 0;
  background: var(--tab);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  font-size: 0.92rem;
}

.tabs a.active {
  position: relative;
  top: 1px;
  background: var(--tab-active);
  color: var(--heading);
  font-weight: 700;
}

main {
  padding: 26px 28px 14px;
}

section {
  margin-bottom: 28px;
}

.profile-photo {
  display: block;
  width: 180px;
  max-width: 100%;
  height: auto;
  margin: 0 0 18px;
  border: 1px solid var(--line);
}

h2 {
  margin: 0 0 10px;
  color: var(--heading);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
}

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

p {
  margin-bottom: 13px;
}

ul,
ol {
  padding-left: 22px;
}

li {
  margin-bottom: 8px;
}

footer {
  padding: 12px 28px 20px;
  color: var(--muted);
  font-size: 0.9rem;
}

footer p {
  margin: 0;
}

@media (max-width: 620px) {
  .site {
    width: 100%;
    margin: 0;
    border-left: 0;
    border-right: 0;
  }

  .site-header,
  main,
  footer {
    padding-left: 16px;
    padding-right: 16px;
  }

  .site-header h1 {
    font-size: 2rem;
  }

  .tabs a {
    padding: 7px 10px;
  }
}