:root { color-scheme: light; --paper:#fffaf2; --ink:#22262f; --muted:#62666d; --sky:#82b7d5; --coral:#d77a72; --line:rgba(34,38,47,.12); }
* { box-sizing: border-box; }
body { margin:0; background:var(--paper); color:var(--ink); font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; line-height:1.65; }
main { width:min(760px,calc(100% - 40px)); margin:0 auto; padding:64px 0 96px; }
header { margin-bottom:42px; }
.mark { display:inline-flex; gap:8px; align-items:center; font-weight:750; letter-spacing:-.02em; }
.dot { width:13px; height:13px; border-radius:50%; background:linear-gradient(135deg,var(--sky) 0 50%,var(--coral) 50%); }
h1 { margin:24px 0 10px; font-size:clamp(2rem,7vw,3.4rem); line-height:1.08; letter-spacing:-.05em; }
h2 { margin-top:38px; font-size:1.25rem; letter-spacing:-.02em; }
p,li { color:var(--muted); }
a { color:#356f91; }
.card { padding:22px; background:rgba(255,255,255,.62); border:1px solid var(--line); border-radius:18px; }
nav { display:flex; flex-wrap:wrap; gap:14px; margin-top:26px; }
nav a { text-decoration:none; font-weight:650; }
footer { margin-top:54px; padding-top:22px; border-top:1px solid var(--line); font-size:.9rem; color:var(--muted); }