:root{--bg:#f6f7f4;--fg:#1d2420;--mut:#66706a;--card:#fff;--line:#d9ded8;--acc:#1f7a4d;--accf:#bfe8cf;--prev:#ffd36b;--field:#eef1ea}
@media(prefers-color-scheme:dark){:root{--bg:#141a17;--fg:#e8eee9;--mut:#9aa69f;--card:#1e2723;--line:#34423b;--acc:#4cc58a;--accf:#2d6b4a;--prev:#b8860b;--field:#26312c}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
main{max-width:760px;margin:0 auto;padding:12px 16px 40px}
a{color:var(--acc)}
h1{font-size:1.35rem;margin:.4rem 0 .2rem}
p.lead{color:var(--mut);margin:.2rem 0 .8rem}
.back{display:inline-block;padding:10px 0;text-decoration:none;font-weight:600}
.stage{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden}
svg{display:block;width:100%;height:auto;user-select:none;-webkit-user-select:none}
.parcel{fill:var(--field);stroke:var(--mut);stroke-width:1.2;stroke-dasharray:5 4}
.f{fill:var(--card);stroke:var(--mut);stroke-width:1;cursor:pointer;transition:fill .08s}
.f.sel{fill:var(--accf);stroke:var(--acc);stroke-width:2}
.f.prev{fill:var(--prev);stroke:#a87400;stroke-width:2}
.f.sel.prev{fill:var(--prev)}
.lbl{font-size:11px;fill:var(--mut);text-anchor:middle;dominant-baseline:central;pointer-events:none}
.ov{pointer-events:none}
.ov .shape{fill:rgba(31,122,77,.12);stroke:var(--acc);stroke-width:2;stroke-dasharray:6 4}
.ov .line{fill:none;stroke:var(--acc);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.ov .dot{fill:var(--acc);stroke:#fff;stroke-width:2}
.chip{fill:var(--acc);cursor:pointer}.chipt{fill:#fff;font-size:12px;font-weight:700;text-anchor:middle;dominant-baseline:central;pointer-events:none}
.bar,.extra{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:10px 0}
.count{flex:1 1 100%;font-weight:600}
button,select,.btn{min-height:44px;padding:8px 14px;border-radius:10px;border:1px solid var(--line);background:var(--card);color:var(--fg);font:inherit;cursor:pointer}
button.pri{background:var(--acc);border-color:var(--acc);color:#fff;font-weight:600}
button.on{background:var(--acc);border-color:var(--acc);color:#fff}
button:disabled{opacity:.4}
.seg{display:inline-flex}.seg button{border-radius:0;margin-left:-1px}.seg button:first-child{border-radius:10px 0 0 10px;margin:0}.seg button:last-child{border-radius:0 10px 10px 0}
.hint{color:var(--mut);font-size:.92rem;margin:6px 0}
label.r{display:flex;gap:10px;align-items:center;flex:1 1 100%}
input[type=range]{flex:1;min-height:44px}
.list{max-height:240px;overflow:auto;border:1px solid var(--line);border-radius:12px;background:var(--card)}
.list label{display:flex;gap:12px;align-items:center;min-height:44px;padding:4px 12px;border-bottom:1px solid var(--line)}
.list label:last-child{border:0}.list input{width:22px;height:22px}
.list label.hl{background:var(--prev)}
.toast{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);background:#222;color:#fff;padding:12px 18px;border-radius:12px;opacity:0;transition:.2s;pointer-events:none;z-index:9}
.toast.show{opacity:1}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px;margin-top:10px}
.card{display:block;text-decoration:none;color:inherit;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px}
.card b{display:block;font-size:1.05rem;margin-bottom:4px}.card span{color:var(--mut);font-size:.92rem}
.tag{display:inline-block;margin-top:8px;font-size:.78rem;padding:2px 8px;border-radius:99px;background:var(--field);color:var(--mut)}
h2{font-size:1.05rem;margin:22px 0 0;color:var(--mut);text-transform:uppercase;letter-spacing:.04em}
.legend{display:flex;flex-wrap:wrap;gap:10px;font-size:.88rem}.legend i{display:inline-block;width:14px;height:14px;border-radius:4px;vertical-align:-2px;margin-right:4px;border:1px solid var(--mut)}