:root {
  color: #17202a;
  background: #f7f8fb;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  padding: 34px 18px;
  background:
    linear-gradient(180deg, #ffffff 0, #f7f8fb 54%, #edf2ef 100%);
}

main {
  width: min(860px, 100%);
  margin: 0 auto;
  border: 1px solid #dbe1e8;
  border-radius: 8px;
  padding: 30px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 18px 54px rgba(23, 32, 42, 0.08);
}

main > p:first-child {
  margin: 0 0 26px;
}

main > p:first-child a {
  min-height: 38px;
  border: 1px solid #cfd6dd;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
  color: #17202a;
  background: #ffffff;
  text-decoration: none;
}

main > p:first-child a::before {
  content: "←";
  color: #1f8a70;
  font-weight: 800;
}

main > p:first-child a:hover {
  border-color: #3a6ea5;
  box-shadow: 0 1px 0 rgba(58, 110, 165, 0.14);
}

h1,
h2,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0 0 10px;
  color: #17202a;
  font-size: 38px;
  line-height: 1.08;
}

h1 + p {
  color: #697584;
  font-size: 14px;
}

h2 {
  margin: 28px 0 8px;
  color: #253241;
  font-size: 19px;
  line-height: 1.25;
}

p {
  margin: 10px 0;
  color: #465363;
  font-size: 16px;
  line-height: 1.68;
}

a {
  color: #176d58;
}

footer {
  margin-top: 34px;
  border-top: 1px solid #dbe1e8;
  padding: 22px;
  border-radius: 8px;
  background: #f1f7f5;
}

footer h2 {
  margin-top: 0;
}

footer p:last-child {
  margin-bottom: 0;
}

@media (max-width: 640px) {
  body {
    padding: 0;
  }

  main {
    min-height: 100vh;
    border: 0;
    border-radius: 0;
    padding: 22px 16px 30px;
    box-shadow: none;
  }

  h1 {
    font-size: 30px;
  }
}