:root {
  color-scheme: light;
  --bg: #ffffff;
  --panel: #ffffff;
  --text: #111111;
  --muted: #555555;
  --border: #e6e6e6;
  --link: #0b66ff;
  --link-hover: #084fc4;
  --shadow: none;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font: 16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji",
    "Segoe UI Emoji";
  color: var(--text);
  background: var(--bg);
}

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

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

.container {
  width: min(980px, calc(100% - 40px));
  margin-inline: auto;
}

.content {
  padding: 26px 0 44px;
}

.doc {
  padding: 26px 22px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.15;
}

h2 {
  margin: 22px 0 8px;
  font-size: 20px;
  line-height: 1.3;
}

h3 {
  margin: 18px 0 6px;
  font-size: 17px;
  line-height: 1.35;
}

h4 {
  margin: 14px 0 6px;
  font-size: 15px;
  line-height: 1.35;
  color: var(--muted);
}

p {
  margin: 10px 0;
}

ul,
ol {
  margin: 10px 0;
  padding-left: 20px;
}

li {
  margin: 6px 0;
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 22px 0;
}

.muted {
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 40px;
  padding: 20px 0 30px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

@media (max-width: 520px) {
  .container {
    width: min(980px, calc(100% - 28px));
  }

  .doc {
    padding: 20px 16px;
  }
}