:root{--bg:#fff;--fg:#1d2129;--muted:#69707d;--border:#e1e4ea;--surface:#f4f5f8;--accent:#ff6b2c;--accent-fg:#fff;--warn-bg:#fff4e0;--warn-fg:#8a5300;--shadow:0 4px 24px #0000001f;--footer-h:28px;color:var(--fg);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}@media (prefers-color-scheme:dark){:root{--bg:#1b1e24;--fg:#e8eaee;--muted:#9aa1ad;--border:#343944;--surface:#262a32;--warn-bg:#3a2c14;--warn-fg:#f5c26b;--shadow:0 4px 24px #00000080}}*{box-sizing:border-box}html,body{background:var(--bg);height:100%;margin:0}#map{inset:0 0 var(--footer-h);position:absolute}#footer{z-index:5;height:var(--footer-h);color:var(--muted);background:var(--bg);border-top:1px solid var(--border);white-space:nowrap;justify-content:center;align-items:center;gap:14px;padding:0 12px;font-size:12px;display:flex;position:fixed;inset:auto 0 0;overflow:hidden}#footer>span:first-child{color:var(--fg);font-weight:600}#footer a{color:inherit}#footer a:hover{color:var(--fg)}#footer 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var(--footer-h))}.nav-hint{display:none}}.fields{grid-template-columns:1fr auto;align-items:center;gap:6px 10px;font-size:14px;display:grid}.field{color:var(--muted)}.field input{width:72px;font:inherit;color:var(--fg);background:var(--surface);border:1px solid var(--border);text-align:right;font-variant-numeric:tabular-nums;border-radius:6px;padding:4px 6px}.stepper{align-items:stretch;display:inline-flex}.stepper input{appearance:textfield}.stepper input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.stepper input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.stepper .steps{flex-direction:column;margin-left:2px;display:flex}.stepper .steps button{border-radius:3px;padding:0 4px;font-size:9px;line-height:1.2}.field.pair input{width:66px}.pieces .hint{margin:8px 0 0}.msg{box-sizing:content-box;height:calc(var(--lines,3) * 1.45em);line-height:1.45;overflow-y:auto}.msg[hidden]{display:none}.warning.ok{background:var(--surface);color:var(--muted)}.pieces 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.hint{flex:1;margin:0}#format-hint{margin-top:6px}