:root {
  --ground: #EEF3F7;
  --card: #FBFCFD;
  --ink: #243044;
  --ink-2: #56647A;
  --accent: #40608C;
  --line: #D8E0E9;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ground: #141A22;
    --card: #1C2430;
    --ink: #E7EDF4;
    --ink-2: #A3B0C2;
    --accent: #8FB0DA;
    --line: #2E3A4A;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.6;
}
.page {
  max-width: 720px;
  margin: 0 auto;
  padding-inline: 20px;
  padding-block: calc(env(safe-area-inset-top, 0px) + 28px) calc(env(safe-area-inset-bottom, 0px) + 56px);
}
.top { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap; margin-bottom: 28px; }
.brand { font-weight: 700; color: var(--ink); text-decoration: none; }
.lang { display: flex; gap: 14px; font-size: 15px; }
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 6px; text-wrap: balance; }
h2 { font-size: 19px; margin: 30px 0 6px; }
h3 { font-size: 17px; margin: 20px 0 4px; }
p { margin: 0 0 10px; max-width: 65ch; }
.meta { color: var(--ink-2); font-size: 15px; margin-bottom: 18px; }
.lede { color: var(--ink-2); font-size: 19px; }
a { color: var(--accent); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
hr { border: 0; border-top: 1px solid var(--line); margin: 48px 0; }
.todo { background: #FFF1C2; color: #6B4E00; border-radius: 4px; padding: 0 4px; }
@media (prefers-color-scheme: dark) { .todo { background: #3A3113; color: #F2D77E; } }
.links { padding-left: 18px; }
.links li { margin: 8px 0; }
.foot { margin-top: 48px; color: var(--ink-2); font-size: 15px; }