:root { --ink: #3c3c3c; --muted: #6f6f6f; --rule: #e8e8e8; --page: #ffffff; --link: #1899d6; }
@media (prefers-color-scheme: dark) {
  :root { --ink: #ececec; --muted: #a8a8a8; --rule: #333333; --page: #151515; --link: #5cc3f5; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--page); color: var(--ink);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 24px 16px 64px; }
nav { display: flex; justify-content: space-between; gap: 16px; font-size: 14px; color: var(--muted); }
nav a { color: var(--link); text-decoration: none; }
h1 { font-size: 28px; line-height: 1.25; margin: 28px 0 8px; }
h2 { font-size: 20px; line-height: 1.3; margin: 32px 0 8px; }
h3 { font-size: 17px; margin: 24px 0 6px; }
p, ul, ol { margin: 0 0 12px; }
ul, ol { padding-left: 22px; }
li { margin: 4px 0; }
a { color: var(--link); overflow-wrap: anywhere; }
.draft { margin: 16px 0 0; padding: 10px 12px; border: 1px solid var(--rule); border-radius: 10px;
  color: var(--muted); font-size: 14px; }
footer { margin-top: 40px; padding-top: 16px; border-top: 1px solid var(--rule); color: var(--muted); font-size: 14px; }