:root{--bg:#fff;--fg:#1b2430;--muted:#5b6675;--line:#e3e7ee;--accent:#2457d6;--accent-fg:#fff;--card:#f7f9fc;--todo:#fff3b0}
@media (prefers-color-scheme:dark){:root{--bg:#10151c;--fg:#e8edf4;--muted:#9aa6b6;--line:#26303d;--accent:#6b97ff;--accent-fg:#0b1220;--card:#171e28;--todo:#5a4b00}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.wrap{max-width:980px;margin:0 auto;padding:0 16px}
.top{border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:56px}
.brand{font-weight:700;font-size:1.2rem;color:var(--fg);text-decoration:none}
nav a{margin-left:16px;color:var(--muted);text-decoration:none}
a{color:var(--accent)}
main{padding:24px 16px 48px}
h1{line-height:1.2}h2{margin-top:1.6em}
.hero{padding:24px 0}
.meta,.small{color:var(--muted);font-size:.9rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px}
.card h2{margin:0 0 8px}
.price{font-size:1.2rem;font-weight:700}.price.big{font-size:1.8rem;margin:0}
.btn{display:inline-block;background:var(--accent);color:var(--accent-fg);border:0;border-radius:8px;padding:10px 18px;font:inherit;font-weight:600;text-decoration:none;cursor:pointer}
.btn[disabled]{opacity:.5;cursor:not-allowed;width:100%}
.cols{display:grid;grid-template-columns:1fr 300px;gap:32px}
.buy{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px;align-self:start}
.trust{padding-left:18px;font-size:.9rem;color:var(--muted)}
.crumbs{color:var(--muted);font-size:.9rem}
.foot{border-top:1px solid var(--line);padding:24px 0;color:var(--muted);font-size:.9rem}
.foot .links a{margin-right:14px;display:inline-block}
mark.todo{background:var(--todo);color:inherit;padding:0 3px;border-radius:3px}
@media (max-width:720px){.cols{grid-template-columns:1fr}}