:root {
  --bg: #fbfaff;
  --text: #1d1b26;
  --muted: #6b6878;
  --line: #e7e3f2;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f0e14; --text: #f2f0f8; --muted: #a29fb0; --line: #2a2735; }
  .logo-light { display: none; }
  .logo-dark { display: block; }
}
* { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.5 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
}
main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  padding: 48px 24px;
  text-align: center;
}
.logo-dark { display: none; }
.logo { width: min(320px, 72vw); height: auto; }
h1 { font-size: clamp(26px, 5vw, 40px); font-weight: 650; letter-spacing: -0.02em; max-width: 18em; }
p.lead { color: var(--muted); max-width: 30em; }
footer {
  display: flex;
  gap: 20px;
  justify-content: center;
  padding: 20px 24px 28px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--muted);
}
a { color: inherit; }
article { max-width: 640px; margin: 0 auto; padding: 48px 24px; text-align: left; }
article h1 { margin-bottom: 24px; }
article h2 { font-size: 19px; margin: 28px 0 8px; }
article p { color: var(--text); }