/* Layout: workshop bench — 3D stage on the left, step card on the right; stacks on phones. */
:root{
  --bg:#e9ecef; --surface:#ffffff; --fg:#1a1e23; --muted:#5b6570; --line:#d3d8de;
  --wood:#d9b27c; --wood-ink:#7a5426; --accent:#e4570f; --accent-ink:#ffffff; --stage:#f4f5f7;
  --edge:#3b2f22; --ok:#2f8a4c; --warn:#c98a12; --bad:#c23b2a;
  --f-body:"IBM Plex Sans KR","Apple SD Gothic Neo","Malgun Gothic",system-ui,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Consolas,monospace;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#121518; --surface:#1b1f24; --fg:#e7eaee; --muted:#9aa4af; --line:#2c333b;
  --wood:#c79a5f; --wood-ink:#e6c393; --accent:#ff7a33; --accent-ink:#1a0d04; --stage:#171b1f; --edge:#140f0a; --ok:#4fbf72; --warn:#e2a93a; --bad:#ef6a57; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#121518; --surface:#1b1f24; --fg:#e7eaee; --muted:#9aa4af; --line:#2c333b;
  --wood:#c79a5f; --wood-ink:#e6c393; --accent:#ff7a33; --accent-ink:#1a0d04; --stage:#171b1f; --edge:#140f0a; --ok:#4fbf72; --warn:#e2a93a; --bad:#ef6a57; color-scheme:dark}
html,body{height:100%;margin:0}
*{box-sizing:border-box}
[hidden]{display:none!important}
body{background:var(--bg);color:var(--fg);font-family:var(--f-body);font-size:15px;line-height:1.55}
.wrap{max-width:1400px;margin:0 auto;padding-inline:16px;padding-block:16px 24px;display:flex;flex-direction:column;gap:14px}
header{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px}
h1{font-size:1.35rem;font-weight:700;margin:0;letter-spacing:-.01em;text-wrap:balance}
.sub{color:var(--muted);font-size:.85rem;margin:2px 0 0}
.tabs{display:flex;gap:6px;flex-wrap:wrap}
.tab{font:inherit;font-weight:600;border:1px solid var(--line);background:var(--surface);color:var(--fg);border-radius:8px;padding:7px 14px;cursor:pointer;display:flex;gap:8px;align-items:baseline}
.tab small{font-family:var(--f-mono);color:var(--muted);font-weight:500}
.tab[aria-selected="true"]{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.tab[aria-selected="true"] small{color:inherit;opacity:.7}
.tab:focus-visible,.btn:focus-visible,.steplist button:focus-visible,.chk input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.main{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:14px;min-height:0}
.stage{position:relative;background:var(--stage);border:1px solid var(--line);border-radius:12px;overflow:hidden;min-height:520px;height:calc(100vh - 150px);height:calc(100dvh - 150px);max-height:860px}
.stage canvas{display:block;width:100%;height:100%;touch-action:none}
.labels{position:absolute;inset:0;pointer-events:none}
.badge{position:absolute;transform:translate(-50%,-50%);font-family:var(--f-mono);font-weight:600;font-size:12px;min-width:24px;height:24px;padding:0 6px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:var(--accent);color:var(--accent-ink);box-shadow:0 1px 3px rgb(0 0 0 / .3)}
.badge.done{background:var(--surface);color:var(--wood-ink);border:1px solid var(--wood)}
.badge.q{background:var(--fg);color:var(--bg)}
.hint{position:absolute;left:12px;bottom:70px;font-size:.75rem;color:var(--muted);background:color-mix(in srgb,var(--stage) 80%,transparent);padding:2px 8px;border-radius:6px}
.toggles{position:absolute;right:10px;top:10px;display:flex;flex-direction:column;gap:4px;background:color-mix(in srgb,var(--surface) 92%,transparent);border:1px solid var(--line);border-radius:8px;padding:8px 10px;font-size:.8rem}
.chk{display:flex;gap:6px;align-items:center;cursor:pointer}
.chk input{accent-color:var(--accent)}
aside{display:flex;flex-direction:column;gap:12px;min-width:0}
.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:10px}
.stepno{font-family:var(--f-mono);font-size:.8rem;color:var(--muted);letter-spacing:.04em}
.stepno b{color:var(--accent);font-weight:600}
.card h2{margin:0;font-size:1.2rem;font-weight:700;text-wrap:balance}
.card p{margin:0}
.lay{align-self:flex-start;font-size:.8rem;font-weight:600;padding:3px 10px;border-radius:999px;background:color-mix(in srgb,var(--wood) 30%,transparent);color:var(--wood-ink)}
.steplist .tag{font-size:.72rem;color:var(--wood-ink);margin-left:6px}
.parts{display:flex;flex-direction:column;gap:6px;margin:0;padding:0;list-style:none}
.parts li{display:grid;grid-template-columns:40px minmax(0,1fr) auto;gap:10px;align-items:center;font-size:.9rem}
.pn{font-family:var(--f-mono);font-weight:600;background:var(--accent);color:var(--accent-ink);border-radius:6px;text-align:center;padding:2px 0;font-size:.85rem}
.pn.x{background:transparent;color:var(--muted);border:1px dashed var(--line)}
.pn.q{background:var(--fg);color:var(--bg)}
.qty{font-family:var(--f-mono);color:var(--muted);font-variant-numeric:tabular-nums}
.nav{display:flex;gap:8px}
.btn{flex:1;font:inherit;font-weight:600;border-radius:8px;padding:9px 12px;cursor:pointer;border:1px solid var(--line);background:var(--surface);color:var(--fg)}
.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn:disabled{opacity:.4;cursor:default}
.steplist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;max-height:470px;overflow:auto}
.steplist button{all:unset;box-sizing:border-box;width:100%;display:grid;grid-template-columns:28px minmax(0,1fr);gap:8px;padding:5px 6px;border-radius:6px;cursor:pointer;font-size:.88rem;color:var(--muted)}
.steplist button .n{font-family:var(--f-mono);text-align:right}
.steplist button.done{color:var(--fg)}
.steplist button.cur{background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--fg);font-weight:600}
.steplist button.cur .n{color:var(--accent)}
.note{font-size:.8rem;color:var(--muted)}
.note a{color:inherit}
.err{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:24px;text-align:center;color:var(--muted)}
.cap{display:none;position:absolute;left:10px;top:10px;max-width:calc(100% - 250px);background:color-mix(in srgb,var(--surface) 92%,transparent);border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-weight:700;font-size:.95rem;line-height:1.35}
.cap small{display:block;font-family:var(--f-mono);font-weight:500;font-size:.75rem;color:var(--muted)}
.cap .tag{color:var(--wood-ink);font-size:.75rem;font-weight:600;margin-left:4px}
.snav{position:absolute;left:50%;bottom:12px;transform:translateX(-50%);display:flex;gap:8px;align-items:center;background:color-mix(in srgb,var(--surface) 92%,transparent);border:1px solid var(--line);border-radius:999px;padding:5px;box-shadow:0 2px 8px rgb(0 0 0 / .12)}
.snav button{font:inherit;font-size:1.5rem;line-height:1;width:58px;height:46px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--fg);cursor:pointer;display:flex;align-items:center;justify-content:center}
.snav button.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.snav button:disabled{opacity:.35;cursor:default}
.snav span{font-family:var(--f-mono);font-weight:600;font-variant-numeric:tabular-nums;min-width:58px;text-align:center}
.snav button:focus-visible,.reset:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.reset{font:inherit;font-size:.8rem;font-weight:600;margin-top:4px;padding:5px 8px;border-radius:6px;border:1px solid var(--line);background:var(--surface);color:var(--fg);cursor:pointer}
.shot .cap,.shot .snav{display:none}
@media (min-width:901px){aside{max-height:max(520px,min(860px,calc(100dvh - 150px)));overflow:auto}}
@media (pointer:coarse){
  .tab{padding:11px 18px}
  .steplist button{padding:11px 8px;font-size:.95rem}
  .btn{padding:14px 12px}
  .chk{gap:10px;padding:5px 0;font-size:.9rem}
  .chk input{width:20px;height:20px}
  .reset{padding:9px 10px;font-size:.9rem}
  .hint{display:none}
}
.shot .wrap{max-width:none;padding:0}
.shot header,.shot aside,.shot .toggles,.shot .hint{display:none}
.shot .main{display:block}
.shot .stage{height:100vh;max-height:none;border:0;border-radius:0}
@media (max-width:900px){
  .main{grid-template-columns:minmax(0,1fr)}
  .stage{height:62vh;height:62dvh;min-height:340px}
  .cap{display:block}
  .hint{display:none}
  .steplist{max-height:none}
}

/* --- Team progress (Firebase) --- */
.hdr-right{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.prog-btn{align-items:center}
.dot{width:9px;height:9px;border-radius:50%;background:var(--muted);display:inline-block}
.dot[data-state="live"]{background:var(--ok)}
.dot[data-state="pending"]{background:var(--warn)}
.dot[data-state="error"]{background:var(--bad)}
.unitrow{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:8px;align-items:center;font-size:.9rem}
.unitrow select{font:inherit;padding:8px 10px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--fg);min-width:0}
.unitstat{font-family:var(--f-mono);color:var(--muted);font-variant-numeric:tabular-nums}
.done-btn{background:color-mix(in srgb,var(--ok) 16%,var(--surface));border-color:var(--ok);color:var(--fg)}
.done-btn.is-done{background:var(--surface);border-style:dashed;color:var(--muted)}
.steplist .ck{color:var(--ok);margin-left:6px;font-weight:700}
.sheet{position:fixed;top:0;right:0;bottom:0;width:min(440px,100%);background:var(--surface);border-left:1px solid var(--line);box-shadow:-8px 0 24px rgb(0 0 0 / .15);padding:calc(16px + env(safe-area-inset-top,0px)) 16px calc(16px + env(safe-area-inset-bottom,0px));overflow:auto;z-index:20;display:flex;flex-direction:column;gap:12px}
.sheet-head{display:flex;justify-content:space-between;align-items:center}
.sheet-head h2{margin:0;font-size:1.2rem}
.icon-btn{font:inherit;font-size:1.1rem;width:44px;height:44px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--fg);cursor:pointer}
.syncline{margin:0;font-size:.9rem;color:var(--muted)}
.teamform,.nameline{display:flex;flex-direction:column;gap:6px}
.teamform label,.nameline label{font-weight:600}
.teamform .row{display:flex;gap:8px}
.teamform input,.nameline input{font:inherit;flex:1;min-width:0;padding:10px 12px;border-radius:8px;border:1px solid var(--line);background:var(--bg);color:var(--fg)}
.teamform .btn{flex:0 0 auto}
.teamline{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:.9rem}
.teamline b{font-family:var(--f-mono)}
.linkbtn{font:inherit;font-size:.85rem;background:none;border:0;color:var(--accent);cursor:pointer;padding:6px 0;text-decoration:underline}
.units{display:flex;flex-direction:column;gap:14px}
.units h3{margin:0 0 6px;font-size:.85rem;letter-spacing:.06em;color:var(--muted)}
.ugrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:8px}
.ucard{font:inherit;text-align:left;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--fg);padding:10px 12px;display:flex;flex-direction:column;gap:6px;cursor:pointer}
.ucard.sel{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.ucard .t{display:flex;justify-content:space-between;font-weight:700}
.ucard .t span{font-family:var(--f-mono);font-weight:600;font-variant-numeric:tabular-nums}
.bar{height:6px;border-radius:3px;background:var(--line);overflow:hidden}
.bar i{display:block;height:100%;background:var(--accent)}
.bar.full i{background:var(--ok)}
.ucard small{color:var(--muted);font-size:.78rem}
@media (pointer:coarse){.unitrow select{padding:11px 10px}.linkbtn{padding:10px 0}}


/* --- step extras: insertion direction, parts check, reference dimensions, field layout --- */
.dirchip{align-self:flex-start;font-size:.85rem;font-weight:600;padding:3px 10px;border-radius:999px;background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--fg)}
.parts li.phead{font-size:.75rem;color:var(--muted);letter-spacing:.03em}
.parts li.frow{cursor:pointer;border-radius:6px;padding:4px 2px}
.parts li.frow:hover,.parts li.frow:focus-visible{background:color-mix(in srgb,var(--accent) 10%,transparent);outline:none}
.pn.ok{background:var(--ok);color:#fff}
.extra{border-top:1px solid var(--line);padding-top:10px;display:flex;flex-direction:column;gap:6px}
.extra h3{margin:0;font-size:.8rem;letter-spacing:.04em;color:var(--muted)}
.extra dl{margin:0;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 12px;font-size:.9rem}
.extra dt{color:var(--fg)}
.extra dd{margin:0;font-family:var(--f-mono);font-variant-numeric:tabular-nums;text-align:right}
.badge.unit{background:var(--fg);color:var(--bg);font-family:var(--f-body);font-size:12px;padding:0 8px}
.badge.ctx{background:transparent;color:var(--muted);box-shadow:none;border:1px dashed var(--line);font-family:var(--f-body);font-size:11px}
.fieldmode .snav,.fieldmode .nav,.fieldmode #listcard,.fieldmode .toggles .chk{display:none}
.sub2{display:block;font-size:.78rem;color:var(--muted);font-family:var(--f-mono)}
.toggles summary{cursor:pointer;font-weight:600;list-style:none;display:flex;align-items:center;gap:6px;min-height:28px}
.toggles summary::-webkit-details-marker{display:none}
.toggles summary::before{content:"⚙";font-size:1rem}
.toggles:not([open]){padding:4px 10px}
.toggles[open] summary{margin-bottom:4px}
.fieldmode .toggles .chk{display:none}
@media (pointer:coarse){.toggles summary{min-height:40px}}
.tab .ord{font-family:var(--f-mono);font-size:.75rem;font-weight:600;width:18px;height:18px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:var(--accent-ink);align-self:center}