:root {
  --ink: rgb(55, 53, 47);
  --muted: rgba(55, 53, 47, 0.72);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
    Helvetica, "Apple Color Emoji", Arial, sans-serif, "Segoe UI Emoji";
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--muted);
  text-decoration-line: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

a:hover {
  color: var(--ink);
}

a:focus-visible {
  outline: 2px solid rgba(35, 131, 226, 0.55);
  outline-offset: 3px;
}

.site-bar {
  align-items: center;
  background: rgba(255, 255, 255, 0.96);
  display: flex;
  height: 58px;
  padding: 0 18px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-bar a {
  color: var(--ink);
  font-size: 14px;
  text-decoration: none;
}

main {
  margin: 0 auto;
  max-width: 780px;
  padding: 67px 30px 110px;
}

h1 {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin: 0 0 22px;
}

h2 {
  font-size: 16px;
  font-weight: 650;
  line-height: 1.5;
  margin: 51px 0 16px;
}

p {
  margin: 0 0 18px;
}

.content-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.content-list li {
  margin: 0 0 10px;
}

.home-page .content-list li {
  margin-bottom: 15px;
}

.back-link {
  display: inline-block;
  font-size: 14px;
  margin-bottom: 32px;
}

.log-page h1 {
  max-width: 700px;
}

.log-page h1 + p {
  margin-bottom: 38px;
}

.log-page h2 {
  margin-top: 38px;
}

@media (max-width: 720px) {
  .site-bar {
    height: 50px;
    padding: 0 15px;
  }

  main {
    padding: 46px 24px 80px;
  }

  h1 {
    font-size: 34px;
  }

  h2 {
    margin-top: 43px;
  }
}