:root {
  color-scheme: light dark;
  --paper: #fbf7ed;
  --ink: #272a31;
  --muted: #68665f;
  --blue: #2853ad;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #16181c;
    --ink: #e8e4d8;
    --muted: #9a978d;
    --blue: #7fa0e0;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
  max-width: 42rem;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif;
}

h1 { font-size: 1.75rem; line-height: 1.2; }
h2 { font-size: 1.15rem; margin-top: 2rem; }
a { color: var(--blue); }
.muted { color: var(--muted); font-size: 0.9rem; }
.play {
  display: inline-block;
  margin: 1rem 0 2rem;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  background: var(--blue);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}
nav { margin-top: 3rem; font-size: 0.9rem; }
nav a { margin-right: 1rem; }