:root{--bg:#f5f6f8;--card:#fff;--ink:#1c2430;--muted:#667085;--line:#d9dee6;--brand:#1f3a5f;--accent:#2a6fdb;--danger:#b42318;--ok:#0b7a3e}
@media (prefers-color-scheme:dark){:root{--bg:#12161c;--card:#1b222c;--ink:#e8ecf2;--muted:#9aa5b5;--line:#2c3644;--brand:#8db4ee;--accent:#5b9dff;--danger:#ff8a80;--ok:#4cd08a}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.45 system-ui,Segoe UI,Roboto,sans-serif}
.top{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:var(--card);border-bottom:1px solid var(--line)}
.brand{font-weight:700;color:var(--brand);text-decoration:none;font-size:18px}
nav{display:flex;gap:16px;align-items:center;flex-wrap:wrap}nav a{color:var(--ink);text-decoration:none}nav a:hover{text-decoration:underline}
main{max-width:1100px;margin:0 auto;padding:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px;margin-bottom:14px}
.card.narrow{max-width:420px;margin:40px auto}
h1{font-size:22px;margin:0 0 12px}h2{font-size:16px;margin:0 0 10px;color:var(--brand)}
label{display:block;font-size:14px;color:var(--muted);margin-bottom:10px}
input,select{display:block;width:100%;margin-top:4px;padding:9px 10px;font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:6px}
input:focus,select:focus,button:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
label.check{display:flex;gap:8px;align-items:center;color:var(--ink)}label.check input{width:auto;margin:0}
button,.btnlink{font:inherit;padding:10px 14px;border-radius:6px;border:1px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer;text-decoration:none;display:inline-block;text-align:center}
button.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
button.secondary,.btnlink.secondary{background:transparent}
button.danger{color:var(--danger);border-color:var(--danger);background:transparent}
button:disabled{opacity:.5;cursor:not-allowed}
button.link{border:0;background:none;padding:0;color:var(--ink);cursor:pointer}button.link:hover{text-decoration:underline}
.wide{width:100%;margin-top:8px}.row{display:flex;gap:8px}.row input{margin:0}form.inline{display:inline}
table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:8px;border-bottom:1px solid var(--line)}th{font-size:13px;color:var(--muted)}
.flash{background:#fff4e5;color:#7a4b00;border:1px solid #f0c987;padding:10px 12px;border-radius:6px;margin-bottom:12px}
.muted{color:var(--muted)}.small{font-size:13px}.big{font-size:18px;font-weight:600;margin:0 0 10px}.hidden{display:none!important}
.cols{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:16px;align-items:start}
.sticky{position:sticky;top:12px}
.produced{list-style:none;margin:0;padding:0}.produced li{display:flex;justify-content:space-between;gap:8px;align-items:center;padding:6px 0;border-bottom:1px solid var(--line);font-size:14px}
.produced button{padding:4px 8px;font-size:13px}
#result{margin-top:10px;font-size:14px}#result a{display:block;margin:2px 0;word-break:break-all}
.ok{color:var(--ok)}.err{color:var(--danger)}
@media (max-width:820px){.cols{grid-template-columns:1fr}.sticky{position:static}.right{order:-1}}