:root {
  --bg: #ffffff;
  --card: #ffffff;
  --text: #1c1c1e;
  --muted: #6b6b70;
  --line: #e6e6ea;
  --accent: #ff3b30;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --card: #1c1c1e;
    --text: #f2f2f7;
    --muted: #9a9aa0;
    --line: #2c2c2e;
    --accent: #ff453a;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 56px 24px 96px;
}

.eyebrow {
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.01em;
  margin: 0 0 8px;
}

h1 {
  font-size: 34px;
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}

.updated {
  color: var(--muted);
  font-size: 15px;
  margin: 0 0 40px;
}

h2 {
  font-size: 21px;
  font-weight: 650;
  letter-spacing: -0.01em;
  margin: 40px 0 10px;
}

p, li { color: var(--text); }
p { margin: 0 0 16px; }

.lead {
  font-size: 19px;
  color: var(--muted);
  margin: 0 0 8px;
}

ul { margin: 0 0 16px; padding-left: 22px; }
li { margin: 0 0 8px; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.back {
  display: inline-block;
  margin-bottom: 32px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 500;
}

hr {
  border: none;
  border-top: 1px solid var(--line);
  margin: 40px 0;
}

.foot {
  color: var(--muted);
  font-size: 14px;
  margin-top: 48px;
}

.home-links { list-style: none; padding: 0; margin: 32px 0 0; }
.home-links li { margin: 0 0 12px; }
.home-links a {
  display: block;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--text);
  font-weight: 600;
}
.home-links a:hover { border-color: var(--accent); text-decoration: none; }