:root {
  --bg: #f5f5f7;
  --text: #1d1d1f;
  --text-body: #424245;
  --text-2: #6e6e73;
  --hairline: rgba(0, 0, 0, 0.07);
  --accent-link: #0066cc;
  --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --max-read: 720px;
  --pad-x: 22px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-rows: 1fr auto;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

main {
  display: grid;
  place-items: center;
  padding: 0 var(--pad-x);
}

h1 {
  font-size: clamp(40px, 9vw, 96px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.05;
  text-align: center;
  text-wrap: balance;
}

footer {
  display: flex;
  justify-content: center;
  padding: 18px var(--pad-x) 22px;
}

footer a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  font-size: 13px;
  color: var(--text-2);
  text-decoration: none;
  border-radius: 999px;
}

footer a:hover { color: var(--text); }
footer a:focus-visible { outline: 2px solid var(--accent-link); outline-offset: 2px; }

/* Text pages (privacy, 404) */
.doc {
  display: block;
  place-items: normal; /* main centres its children; text pages must not */
  max-width: var(--max-read);
  margin: 0 auto;
  padding: clamp(40px, 8vw, 80px) var(--pad-x) 24px;
}
.doc h1 { font-size: clamp(32px, 6vw, 48px); text-align: left; margin-bottom: 24px; }
.doc h2 { font-size: 21px; letter-spacing: -0.01em; margin: 32px 0 8px; }
.doc p, .doc li { color: var(--text-body); font-size: 17px; line-height: 1.85; }
.doc ul { padding-left: 1.2em; }
.doc a { color: var(--accent-link); }
.doc .meta { color: var(--text-2); font-size: 14px; margin-bottom: 16px; }