:root{--brand:#1546C0;--ink:#1d2433;--muted:#5b6475;--bg:#f6f7fb;--card:#fff;--line:#e3e6ef}
*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans",sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
header{background:var(--brand);color:#fff}header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 16px}
header a{color:#fff;text-decoration:none;font-weight:600}nav a{margin-left:16px;font-weight:500;opacity:.9}
.wrap{max-width:860px;margin:0 auto;padding:0 16px}main .wrap{padding:32px 16px 56px}
h1{font-size:clamp(1.7rem,4vw,2.4rem);line-height:1.2;margin:0 0 12px}h2{margin-top:32px;font-size:1.25rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;margin:16px 0}
.muted{color:var(--muted)}.hero{padding:56px 0 24px}.btn{display:inline-block;background:var(--brand);color:#fff;padding:10px 18px;border-radius:10px;text-decoration:none;font-weight:600}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
footer{border-top:1px solid var(--line);padding:20px 0;color:var(--muted);font-size:.9rem}footer a{color:var(--muted)}
.todo{background:#fff4d6;border-radius:4px;padding:0 4px}