:root {
  --ink: #16181d;
  --muted: #555b66;
  --line: #e3e5e8;
  --accent: #b3261e;
  --bg: #ffffff;
  --soft: #f6f7f8;
}
@media (prefers-color-scheme: dark) {
  :root { --ink: #e8eaed; --muted: #a3a9b3; --line: #2c3036; --accent: #ff8a80; --bg: #121417; --soft: #1a1d21; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
}
main, header, footer { max-width: 44rem; margin: 0 auto; padding: 0 1.25rem; }
header { padding-top: 1.5rem; display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; flex-wrap: wrap; }
header a { color: var(--ink); text-decoration: none; }
header .name { font-weight: 700; letter-spacing: -0.01em; }
header nav a { color: var(--muted); margin-left: 1rem; font-size: 0.95rem; }
h1 { font-size: 2.1rem; line-height: 1.2; letter-spacing: -0.02em; margin: 2.5rem 0 1rem; }
h2 { font-size: 1.3rem; margin: 2.5rem 0 0.75rem; }
p, ul, ol { margin: 0 0 1rem; }
li { margin-bottom: 0.35rem; }
a { color: var(--accent); }
.lede { font-size: 1.2rem; color: var(--muted); }
.price { background: var(--soft); border: 1px solid var(--line); border-radius: 10px; padding: 1.1rem 1.25rem; margin: 1.5rem 0; }
.price strong { font-size: 1.6rem; }
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
@media (max-width: 640px) { .cols { grid-template-columns: 1fr; } h1 { font-size: 1.7rem; } }
.cols h3 { font-size: 1rem; margin: 0 0 0.5rem; }
.cta { display: inline-block; background: var(--ink); color: var(--bg); padding: 0.7rem 1.1rem; border-radius: 8px; text-decoration: none; font-weight: 600; }
code { font-size: 0.92em; background: var(--soft); padding: 0.1em 0.35em; border-radius: 4px; }
footer { color: var(--muted); font-size: 0.9rem; border-top: 1px solid var(--line); margin-top: 3rem; padding-top: 1rem; padding-bottom: 2rem; }
footer a { color: var(--muted); }