:root {
  color-scheme: light;
  --canvas: #f2f2f5;
  --surface: #ffffff;
  --text: #0d0d0f;
  --muted: #71717a;
  --line: #dedee4;
  --max: 42rem;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--canvas);
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--canvas);
  color: var(--text);
  font-family: "Segoe UI", ui-sans-serif, -apple-system, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
}

a {
  color: inherit;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.25rem 1.25rem 0;
}

.mark {
  font-weight: 700;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.top nav {
  display: flex;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.9375rem;
}

.top a {
  text-decoration: none;
}

.top a[aria-current="page"] {
  color: var(--text);
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 4rem;
}

.home {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1.5rem;
  padding-top: 15vh;
}

.home h1 {
  margin: 0;
  font-size: 2.5rem;
  letter-spacing: -0.04em;
}

.home nav {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}

.home a {
  font-size: 1.125rem;
}

article h1 {
  margin: 0 0 0.35rem;
  font-size: 2rem;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.updated {
  margin: 0 0 1.5rem;
  color: var(--muted);
}

h2 {
  margin: 2rem 0 0.6rem;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

p,
li {
  margin: 0.7rem 0;
}

ul {
  margin: 0.4rem 0 0;
  padding-left: 1.2rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.975rem;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 0.7rem 0.75rem 0.7rem 0;
  border-bottom: 1px solid var(--line);
}

th {
  color: var(--muted);
  font-weight: 600;
}

.contact {
  margin-top: 0.4rem;
}

.contact a {
  color: var(--text);
}