:root {
  --paper: #ffffff;
  --ink: #111111;
  --mid: #6b7280;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #161616;
    --ink: #f3f4f6;
    --mid: #9ca3af;
  }
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.6 "Segoe UI", system-ui, -apple-system, sans-serif;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 56px 16px 64px;
}

header { margin-bottom: 32px; }

.lockup {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 30px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.4px;
}

.lockup svg { width: 27px; height: 27px; flex: none; }

h1 { font-size: 20px; font-weight: 400; color: var(--mid); margin: 12px 0 0; }

h2 { font-size: 17px; font-weight: 600; margin: 32px 0 4px; }

ul { margin: 0; padding-left: 20px; }

a { color: inherit; text-underline-offset: 3px; }