:root {
  color-scheme: light dark;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #1c2430;
  --muted: #5d6b7e;
  --line: #dde3ea;
  --accent: #1f6feb;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418;
    --surface: #1a1f26;
    --text: #e8ecf1;
    --muted: #9aa7b6;
    --line: #2b333d;
    --accent: #6aa7ff;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Segoe UI", sans-serif;
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 16px 56px;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 15px;
}

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

nav .links {
  display: flex;
  gap: 16px;
}

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

.hero {
  display: flex;
  align-items: center;
  gap: 20px;
  margin: 36px 0 28px;
}

.hero img {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  flex: none;
}

h1 {
  margin: 0;
  font-size: 30px;
  line-height: 1.25;
}

.tagline {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 17px;
}

h2 {
  margin: 40px 0 12px;
  font-size: 21px;
}

h3 {
  margin: 24px 0 6px;
  font-size: 17px;
}

p,
li {
  font-size: 16px;
}

.meta {
  color: var(--muted);
  font-size: 15px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  padding: 0;
  list-style: none;
}

.cards li {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
}

.cards strong {
  display: block;
  margin-bottom: 2px;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  background: var(--surface);
  font-size: 15px;
}

th,
td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

th {
  white-space: nowrap;
}

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

@media (max-width: 480px) {
  .hero {
    gap: 14px;
  }

  .hero img {
    width: 72px;
    height: 72px;
    border-radius: 16px;
  }

  h1 {
    font-size: 25px;
  }
}