:root {
  --bg: #f2f2f7;
  --card: #ffffff;
  --text: #1c1c1e;
  --muted: #6e6e73;
  --line: #e5e5ea;
  --accent: #1abd9c;
  --link: #0b7a64;
  --tint: #e6f7f3;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --card: #1c1c1e;
    --text: #f2f2f7;
    --muted: #a1a1a6;
    --line: #38383a;
    --accent: #36d9b8;
    --link: #36d9b8;
    --tint: #0f2b25;
  }
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

a {
  color: var(--link);
  text-underline-offset: 2px;
}

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 9px;
}

h1 {
  margin: 0 0 4px;
  font-size: 34px;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h2 {
  margin: 0 0 12px;
  font-size: 21px;
  line-height: 1.3;
}

.meta {
  margin: 0 0 24px;
  color: var(--muted);
}

.card {
  margin-bottom: 16px;
  padding: 20px;
  border-radius: 16px;
  background: var(--card);
}

.card > :last-child {
  margin-bottom: 0;
}

.summary {
  border-left: 4px solid var(--accent);
  background: var(--tint);
}

p,
ul {
  margin: 0 0 12px;
}

ul {
  padding-left: 22px;
}

li + li {
  margin-top: 4px;
}

.footer {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 15px;
}

.footer a {
  margin-right: 16px;
}