:root{--bg:#fbfbfc;--card:#fff;--line:#e3e6ec;--text:#1b1f27;--muted:#69717f;
--accent:#0b6e4f;--accent-2:#e8f3ee;--warn:#8a5a00;--warn-bg:#fff6e0;color-scheme:light}
@media (prefers-color-scheme:dark){:root{--bg:#12151a;--card:#191d24;--line:#282e38;
--text:#e8ebf0;--muted:#98a1b0;--accent:#4cc79a;--accent-2:#16302a;--warn:#e0b25c;--warn-bg:#2a2213;color-scheme:dark}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);
font:16px/1.6 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--accent)}
main{max-width:900px;margin:0 auto;padding:1.5rem 1.25rem 3rem}
.top{display:flex;gap:1.5rem;align-items:center;padding:.9rem 1.25rem;
background:var(--card);border-bottom:1px solid var(--line)}
.brand{font-weight:700;text-decoration:none;color:var(--text)}
.top nav a{text-decoration:none}
h1{font-size:1.8rem;line-height:1.25;margin:.2rem 0 .6rem}
h2{font-size:1.15rem;margin:2rem 0 .75rem}
.lede{color:var(--muted);font-size:1.05rem}
fieldset{border:1px solid var(--line);border-radius:10px;margin:0 0 1rem;padding:1rem;background:var(--card)}
legend{font-weight:650;padding:0 .4rem}
.choices{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:.6rem}
.choice{display:block;border:1px solid var(--line);border-radius:9px;padding:.7rem .8rem;cursor:pointer;background:var(--bg)}
.choice:has(input:checked){border-color:var(--accent);background:var(--accent-2)}
.choice span{font-weight:600;display:block}
.choice small{color:var(--muted);display:block;margin-top:.15rem}
button{background:var(--accent);color:#fff;border:0;border-radius:9px;
padding:.7rem 1.3rem;font:inherit;font-weight:650;cursor:pointer}
ul.devices,ul.links{list-style:none;padding:0;margin:0;display:grid;gap:.6rem}
.device{border:1px solid var(--line);border-radius:10px;padding:.8rem .9rem;background:var(--card)}
.d-head{display:flex;justify-content:space-between;gap:1rem;align-items:baseline}
.d-name{font-weight:650}
.d-price{font-variant-numeric:tabular-nums;white-space:nowrap}
.d-meta{margin-top:.35rem;display:flex;flex-wrap:wrap;gap:.3rem}
.tag{font-size:.78rem;border:1px solid var(--line);border-radius:99px;padding:.05rem .5rem;color:var(--muted)}
.tag.matter{color:var(--accent);border-color:var(--accent)}
.d-need{margin:.5rem 0 0;font-size:.9rem;color:var(--warn)}
.d-note,.d-src{margin:.4rem 0 0;font-size:.87rem;color:var(--muted)}
.warn{background:var(--warn-bg);border:1px solid var(--line);border-left:3px solid var(--warn);
border-radius:8px;padding:.75rem .9rem;margin:1rem 0}
.warn ul{margin:.4rem 0 0;padding-left:1.1rem}
.total .big{font-size:2rem;font-weight:700;margin:.2rem 0}
.muted{color:var(--muted);font-size:.9rem}
ul.links{gap:.3rem}
.foot{border-top:1px solid var(--line);margin-top:2rem;padding:1rem 1.25rem;color:var(--muted);font-size:.87rem}
#preview{margin-top:1rem}