:root{
  --bg:#fbfaf8; --panel:#ffffff; --ink:#191714; --muted:#6d6459; --line:#e6e1d8;
  --accent:#a4471f; --accent-soft:#f6e9e2; --ok:#2f6b46; --warn:#8a5a12; --warn-soft:#fbf1dd;
  --chip:#f1ede6; --shadow:0 1px 2px rgba(25,23,20,.06),0 8px 24px rgba(25,23,20,.05);
  --radius:12px; --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:ui-sans-serif,-apple-system,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
}
html[data-theme="dark"]{
  --bg:#14120f; --panel:#1d1a16; --ink:#f0ece5; --muted:#a49a8c; --line:#302b24;
  --accent:#e08b5e; --accent-soft:#33231a; --ok:#7fc39b; --warn:#e0b168; --warn-soft:#2e2618;
  --chip:#262119; --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.3);
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);
  font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}
.top{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 22px;border-bottom:1px solid var(--line)}
.brand{font-weight:640;letter-spacing:-.015em;text-decoration:none;color:var(--ink);font-size:15px}
.top-right{display:flex;align-items:center;gap:6px}
.credits{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.icon,.iconlink{background:transparent;border:1px solid transparent;color:var(--muted);
  border-radius:8px;width:30px;height:30px;display:inline-flex;align-items:center;
  justify-content:center;cursor:pointer;font-size:13px;text-decoration:none;font-family:var(--mono)}
.icon:hover,.iconlink:hover{background:var(--chip);color:var(--ink)}
main{max-width:820px;margin:0 auto;padding:44px 22px 72px}
.ask h1{font-size:30px;line-height:1.15;letter-spacing:-.025em;margin:0 0 6px}
.sub{color:var(--muted);margin:0 0 18px;font-size:15px}
textarea{width:100%;font:inherit;color:var(--ink);background:var(--panel);
  border:1px solid var(--line);border-radius:var(--radius);padding:14px 15px;resize:vertical;
  min-height:64px;box-shadow:var(--shadow)}
textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:transparent}
.ask-row{display:flex;align-items:center;gap:10px;margin-top:12px;flex-wrap:wrap}
button{font:inherit}
.primary{background:var(--accent);color:#fff;border:0;border-radius:9px;padding:9px 18px;
  font-weight:560;cursor:pointer}
.primary:disabled{opacity:.45;cursor:not-allowed}
.ghost{background:transparent;border:1px solid var(--line);color:var(--muted);
  border-radius:9px;padding:8px 13px;cursor:pointer}
.ghost:hover{color:var(--ink);border-color:var(--muted)}
.ghost.small{padding:5px 10px;font-size:13px}
.hold{font-size:12.5px;color:var(--muted)}
.shortfall{color:var(--warn);font-size:13px;margin:10px 0 0}
.seeds{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.seed{background:var(--chip);border:0;color:var(--muted);border-radius:20px;
  padding:6px 13px;font-size:13px;cursor:pointer}
.seed:hover{color:var(--ink)}
.facts{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}
.chips{display:flex;gap:6px;flex-wrap:wrap;margin:10px 0}
.chip{background:var(--chip);border-radius:7px;padding:4px 10px;font-size:12.5px;color:var(--muted)}
.chip b{color:var(--ink);font-weight:560}
.chip.guess{border:1px dashed var(--line);background:transparent}
.unknowns .chip{cursor:pointer;border:1px solid var(--line);background:transparent}
.unknowns .chip[data-on="1"]{background:var(--accent-soft);color:var(--ink);border-color:var(--accent)}
.zone{margin-top:34px;border-top:1px solid var(--line);padding-top:22px}
.zone-head{display:flex;align-items:baseline;justify-content:space-between;gap:14px}
.zone-head h2{font-size:19px;margin:0 0 4px;letter-spacing:-.02em;font-weight:600}
.zone-actions{display:flex;gap:6px;flex-shrink:0}
.steps{list-style:none;margin:14px 0 0;padding:0;display:flex;flex-direction:column;gap:8px}
.step{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:12px 14px;box-shadow:var(--shadow)}
.step[data-dropped="1"]{opacity:.42}
.step[data-dropped="1"] .step-body{display:none}
.step-head{display:flex;align-items:center;gap:9px}
.step-n{font-family:var(--mono);font-size:12px;color:var(--muted);width:20px;flex-shrink:0}
.step-title{font-weight:560;flex:1;min-width:0}
.step-tag{font-family:var(--mono);font-size:11px;background:var(--accent-soft);
  color:var(--accent);border-radius:5px;padding:2px 7px;white-space:nowrap}
.cost{font-size:11px;color:var(--muted);font-family:var(--mono)}
.cost[data-c="high"]{color:var(--warn)}
.step-ctl{display:flex;gap:2px;flex-shrink:0}
.step-ctl button{background:transparent;border:1px solid var(--line);color:var(--muted);
  border-radius:6px;width:26px;height:26px;cursor:pointer;font-size:12px;line-height:1;padding:0}
.step-ctl button:hover{color:var(--ink);border-color:var(--muted)}
.step-ctl button:disabled{opacity:.3;cursor:not-allowed}
.step-body{margin:8px 0 0 29px;font-size:14px;color:var(--muted)}
.step-body .why{color:var(--ink)}
.flow{font-family:var(--mono);font-size:12px;margin-top:5px}
.alt{margin-top:7px;font-size:13px}
.alt button{background:transparent;border:1px dashed var(--line);color:var(--muted);
  border-radius:7px;padding:3px 9px;cursor:pointer;font-size:12.5px}
.alt button:hover{border-style:solid;color:var(--ink)}
.opt{font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:5px;padding:1px 6px}
.watch{margin-top:14px;font-size:13.5px;color:var(--muted)}
.watch ul{margin:6px 0 0;padding-left:18px}
.conflict{margin-top:12px;background:var(--warn-soft);border-radius:9px;padding:10px 13px;
  font-size:13.5px;color:var(--ink)}
.conflict ul{margin:6px 0 0;padding-left:18px}
.confirm-row{display:flex;align-items:center;gap:12px;margin-top:20px;flex-wrap:wrap}
.muted{color:var(--muted);font-size:13px}
.out .step-body{display:block}
.do{color:var(--ink);margin-bottom:8px}
.pre{position:relative;background:var(--chip);border-radius:9px;padding:11px 13px;
  font-family:var(--mono);font-size:12.5px;white-space:pre-wrap;word-break:break-word;color:var(--ink)}
.pre .copy{position:absolute;top:6px;right:6px}
.kv{margin-top:8px;font-size:13px}
.kv b{color:var(--ink);font-weight:560}
.setlist{margin:8px 0 0;padding-left:18px;font-family:var(--mono);font-size:12.5px}
.recovery{background:var(--warn-soft);border-radius:9px;padding:9px 13px;font-size:13.5px;margin:12px 0 0}
.progress{margin-top:28px;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);padding:14px 16px;box-shadow:var(--shadow)}
.prog-head{display:flex;justify-content:space-between;font-size:14px;font-weight:560}
.prog-time{font-family:var(--mono);color:var(--muted);font-weight:400}
.prog-steps{list-style:none;margin:10px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px;
  font-size:12.5px;color:var(--muted)}
.prog-steps li[data-state="done"]{color:var(--ok)}
.prog-steps li[data-state="active"]{color:var(--ink);font-weight:560}
.history-list{list-style:none;margin:12px 0 0;padding:0;display:flex;flex-direction:column;gap:6px}
.history-list li{display:flex;gap:10px;align-items:baseline}
.history-list button{background:transparent;border:0;color:var(--accent);cursor:pointer;
  padding:0;text-align:left;font:inherit}
.history-list .when{font-size:12px;color:var(--muted);font-family:var(--mono);flex-shrink:0}
.error{margin-top:24px;background:var(--warn-soft);border-radius:9px;padding:12px 14px;font-size:14px}
.mono{font-family:var(--mono);font-size:.92em}
footer{max-width:820px;margin:0 auto;padding:24px 22px 60px;border-top:1px solid var(--line);
  color:var(--muted);font-size:12.5px}
footer a{color:var(--muted)}
@media (max-width:620px){
  main{padding:30px 16px 60px}
  .ask h1{font-size:25px}
  .step-body{margin-left:0}
}