:root {
  --bg: #f6f7f8;
  --surface: #ffffff;
  --text: #1d2124;
  --muted: #5b646b;
  --line: #dde1e4;
  --accent: #d93f3f;
  --good: #3f8f1f;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c2023;
    --surface: #262b2e;
    --text: #eef1f3;
    --muted: #a3acb3;
    --line: #3a4146;
    --accent: #ff6b6b;
    --good: #9bd84a;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font:
    17px/1.6 -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    Helvetica,
    Arial,
    sans-serif;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 16px 64px;
}

header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

header img {
  width: 64px;
  height: 64px;
  border-radius: 14px;
}

header p {
  margin: 0;
  color: var(--muted);
}

h1 {
  margin: 0;
  font-size: 30px;
  line-height: 1.2;
}

h2 {
  margin: 40px 0 8px;
  font-size: 22px;
  line-height: 1.3;
}

h3 {
  margin: 24px 0 4px;
  font-size: 18px;
}

a {
  color: var(--accent);
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-bottom: 8px;
}

.note {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 12px 16px;
  margin: 20px 0;
}

.note p {
  margin: 0;
}

ul {
  padding-left: 22px;
}

li {
  margin: 4px 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 15px;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 8px;
  border-bottom: 1px solid var(--line);
}

.table-wrap {
  overflow-x: auto;
}

footer {
  margin-top: 48px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}