:root {
  --text: #202124;
  --muted: #5f6368;
  --line: #dadce0;
  --nav: #f1f3f4;
  --link: #1a73e8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--text);
  background: #fff;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

.page-width {
  width: min(900px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header { padding: 30px 0 20px; }

h1 {
  margin: 0 0 3px;
  font-size: 31px;
  font-weight: 400;
  letter-spacing: -.02em;
}

.site-header p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

nav { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--nav); }

nav .page-width { display: flex; flex-wrap: wrap; gap: 0; }

nav a {
  padding: 10px 15px 10px 0;
  color: #3c4043;
  font-size: 14px;
  text-decoration: none;
}

nav a:hover, nav a:focus { color: var(--link); text-decoration: underline; }

main { padding: 29px 0 38px; }

section { margin-bottom: 34px; }

h2 {
  margin: 0 0 13px;
  padding-bottom: 7px;
  border-bottom: 1px solid var(--line);
  font-size: 21px;
  font-weight: 400;
}

p { max-width: 780px; margin: 0 0 14px; }

.home-profile {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  align-items: start;
  gap: 22px;
  max-width: 800px;
}

.profile-photo {
  display: block;
  width: 210px;
  height: auto;
  border: 1px solid var(--line);
}

ul, ol { max-width: 800px; margin: 0 0 14px; padding-left: 22px; }
li { margin-bottom: 9px; }

a { color: var(--link); }
a:focus-visible { outline: 2px solid var(--link); outline-offset: 2px; }

footer {
  padding: 16px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: #fafafa;
  font-size: 13px;
}

@media (max-width: 560px) {
  .page-width { width: min(100% - 32px, 900px); }
  .site-header { padding-top: 23px; }
  h1 { font-size: 28px; }
  nav a { padding-right: 13px; }
  .home-profile { grid-template-columns: 1fr; }
  .profile-photo { width: min(210px, 100%); }
}