:root {
  color-scheme: light dark;
  --ink: #1a1e26;
  --paper: #fafaf7;
  --highlight: #f5d547;
  --muted: #5a6472;
  --line: #e3e4de;
  --serif: "Iowan Old Style", Charter, Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8e6df;
    --paper: #14171e;
    --muted: #9aa3b0;
    --line: #2a2f3a;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 1rem/1.65 var(--sans);
}
main {
  width: min(100% - 2rem, 42rem);
  margin: 0 auto;
  padding: 3rem 0 4rem;
}
h1, h2 {
  font-family: var(--serif);
  line-height: 1.25;
}
h1 { margin: 0 0 2rem; font-size: clamp(2rem, 8vw, 3rem); }
h2 { margin: 2rem 0 0.5rem; font-size: 1.25rem; }
p, ul { margin: 0.5rem 0; }
a { color: inherit; text-decoration-color: var(--highlight); text-decoration-thickness: 2px; }
.corner {
  display: block;
  width: 1rem;
  height: 1rem;
  margin-bottom: 1rem;
  background: var(--highlight);
  clip-path: polygon(0 0, 100% 0, 0 100%);
}
.note {
  padding-left: 1rem;
  border-left: 3px solid var(--highlight);
}
.muted { color: var(--muted); }
nav { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--line); }