:root { color-scheme: light; --bg: #EAF7F6; --text: #10302F; --muted: #4A625F; --accent: #0C7675; --card: #FFFFFF; --line: #DCEAE8; }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: linear-gradient(180deg, #DDF4F3, #F7FBFA 60%); background-attachment: fixed; color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; }
main, header, footer { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header { display: flex; align-items: center; gap: 10px; padding-top: 22px; padding-bottom: 8px; }
header a { display: flex; align-items: center; gap: 10px; color: var(--accent); text-decoration: none; font-weight: 700; font-size: 22px; }
header img { width: 36px; height: 36px; border-radius: 10px; }
h1 { font-size: clamp(28px, 6vw, 40px); line-height: 1.2; margin: 18px 0 10px; }
h2 { font-size: 21px; margin: 28px 0 8px; }
p, li { max-width: 68ch; }
a { color: var(--accent); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 22px; padding: 18px 20px; margin: 16px 0; }
.draft { background: #FBEFD2; color: #6E4B00; border-radius: 14px; padding: 12px 16px; font-weight: 600; }
.muted { color: var(--muted); }
.code { font-size: 26px; font-weight: 700; letter-spacing: 4px; }
footer { padding-top: 30px; padding-bottom: 40px; color: var(--muted); font-size: 15px; }
footer a { margin-right: 14px; }
ol li + li, ul li + li { margin-top: 6px; }