:root { --bg:#fbfaf7; --ink:#1c1b19; --muted:#615f5a; --line:#e3e0d8; --accent:#1f5f4a; --accent-ink:#fff; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --bg:#161614; --ink:#f1efe9; --muted:#a8a59d; --line:#2e2d2a; --accent:#5fb89a; --accent-ink:#0f1a16; }
}
* { box-sizing:border-box; }
body { margin:0; background:var(--bg); color:var(--ink); font:17px/1.6 system-ui,-apple-system,"Segoe UI",sans-serif; }
main { max-width:720px; margin:0 auto; padding:48px 16px 80px; }
nav { font-size:.95rem; margin-bottom:28px; }
nav a { margin-right:16px; }
h1 { font-size:1.9rem; line-height:1.15; margin:0 0 12px; }
h2 { font-size:1.2rem; margin:32px 0 8px; }
.muted { color:var(--muted); }
.box { border:1px solid var(--line); border-radius:10px; padding:16px 20px; margin:14px 0; }
.price { font-size:1.6rem; font-weight:700; }
ul { padding-left:20px; } li { margin:5px 0; }
a { color:var(--accent); }
footer { margin-top:48px; font-size:.9rem; color:var(--muted); }
footer a { margin-right:14px; }
.btn { display:inline-block; padding:11px 20px; background:var(--accent); color:var(--accent-ink); border-radius:8px; text-decoration:none; font-weight:600; }