:root{--bg:#f6f7f9;--card:#fff;--ink:#16191d;--mute:#5d6672;--line:#dde1e6;--accent:#0b5fff;--warn:#b45309;--bad:#b42318;--good:#067647;--desk:#dfe3e8}
@media (prefers-color-scheme:dark){:root{--bg:#111418;--card:#1a1f26;--ink:#e8ebef;--mute:#9aa4b0;--line:#2b323b;--accent:#6aa0ff;--warn:#f0a35a;--bad:#ff8a80;--good:#5fd39a;--desk:#232a33}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.45 system-ui,-apple-system,Segoe UI,sans-serif}
header{background:var(--card);border-bottom:1px solid var(--line);padding:8px 16px;display:flex;gap:12px;align-items:center;flex-wrap:wrap}
header a{color:var(--ink);text-decoration:none;padding:10px 4px;font-weight:600}header a.on{color:var(--accent)}header .sp{flex:1}
header .brand{display:flex;align-items:center;gap:10px;padding:4px 8px 4px 0}
header svg.logo{height:30px;width:auto;fill:var(--ink);display:block}
header .brandname{display:none;font-weight:800;font-style:italic;letter-spacing:.05em;text-transform:uppercase;font-size:.95rem}
@media (min-width:700px){header .brandname{display:inline}}
header nav.top{display:flex;gap:12px}header .who{font-size:.9rem}
main{max-width:1100px;margin:0 auto;padding:16px}main.wide{max-width:none;padding:10px 12px}
h1{font-size:1.4rem;margin:.2em 0 .6em}h2{font-size:1.1rem;margin:1.4em 0 .5em}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px;margin:12px 0}
.card.good{border-color:var(--good)}.card.bad{border-color:var(--bad)}
.wrap{overflow-x:auto}table{border-collapse:collapse;width:100%}th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:.8rem;text-transform:uppercase;letter-spacing:.04em;color:var(--mute)}td.n,th.n{text-align:right;white-space:nowrap}
input[type=text],input[type=search],input[type=number],select,textarea{padding:10px 12px;font:inherit;border:1px solid var(--line);border-radius:8px;background:var(--card);color:var(--ink);min-height:44px}
input[type=text],input[type=search],textarea{width:100%}
button,.btn{min-height:44px;padding:0 16px;border-radius:8px;border:1px solid var(--line);background:var(--card);color:var(--ink);font:inherit;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}
button:disabled{opacity:.45;cursor:default}
button.primary,.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
button.danger{color:var(--bad);border-color:var(--bad)}
form.inline{display:inline}
.mute{color:var(--mute)}.warn{color:var(--warn)}.bad{color:var(--bad)}.good{color:var(--good)}
.tag{font-size:.78rem;border:1px solid var(--line);border-radius:99px;padding:1px 8px}.tag.good{color:var(--good);border-color:var(--good)}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}a{color:var(--accent)}.grow{flex:1;min-width:180px}.narrow{max-width:420px}
.sp{flex:1}

/* ---- editor */
.bar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:8px}.dtitle{font-size:1.05rem;max-width:40ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#status{font-size:.9rem}#status.bad{color:var(--bad)}
.work{display:grid;grid-template-columns:200px minmax(0,1fr) 270px;grid-template-areas:"tools tools tools" "palette canvas props";gap:8px}
#app[data-level=view] .work{grid-template-columns:minmax(0,1fr) 270px;grid-template-areas:"canvas props"}
.tools{grid-area:tools;display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:99px;overflow:hidden;background:var(--card)}
.seg button{border:0;border-right:1px solid var(--line);border-radius:0;background:transparent;padding:0 16px}
.seg button:last-child{border-right:0}.seg button.on{background:var(--ink);color:var(--bg);font-weight:700}
.tools .gap{width:12px}
.palette{grid-area:palette;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:8px;overflow:auto;max-height:calc(100vh - 190px)}
.palette input{margin-bottom:8px}
.palette h4{margin:10px 0 4px;font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--mute)}
.palette .grid{display:grid;grid-template-columns:repeat(2,1fr);gap:6px}
.symbtn{display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 2px;min-height:78px;font-size:.78rem;line-height:1.15;text-align:center;border:1px solid var(--line);border-radius:8px;background:#fff;color:#111;cursor:pointer}
.symbtn svg{width:48px;height:48px}.symbtn.on{border-color:var(--accent);outline:2px solid var(--accent)}
.canvaswrap{grid-area:canvas;position:relative;background:var(--desk);border:1px solid var(--line);border-radius:10px;overflow:hidden;height:calc(100vh - 190px);min-height:420px;touch-action:none;user-select:none;-webkit-user-select:none}
#app[data-mode=print] .canvaswrap{display:none}
.canvaswrap svg{display:block;width:100%;height:100%}
#sheet.t-wire,#sheet.t-bus,#sheet.t-box,#sheet.t-text,#sheet.placing{cursor:crosshair}
#sheet .pan{cursor:grab}
.props{grid-area:props;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px;overflow:auto;max-height:calc(100vh - 190px)}
.props h3{margin:0 0 8px;font-size:1rem}.props label{display:block;font-size:.8rem;color:var(--mute);margin:8px 0 2px}
.props .row button{min-height:40px}
.zoom{position:absolute;right:10px;top:10px;display:flex;gap:6px}.zoom button{min-height:40px;min-width:40px;padding:0 10px;box-shadow:0 2px 8px rgba(0,0,0,.2)}
.banner{position:absolute;left:10px;right:10px;top:10px;background:var(--card);border:2px solid var(--bad);border-radius:10px;padding:10px;z-index:5}
.handle{fill:#fff;stroke:#0b5fff;stroke-width:2}.sel{fill:none;stroke:#0b5fff;stroke-width:1.5;stroke-dasharray:5 4}
.portdot{fill:#0b5fff;fill-opacity:.35}.portdot.near{fill:#0b5fff;fill-opacity:.9}
.ghost{opacity:.55;pointer-events:none}
[hidden]{display:none !important}
.compactonly{display:none}
.dragghost{position:fixed;z-index:60;width:64px;height:64px;pointer-events:none;opacity:.8;background:#fff;border:1px solid var(--accent);border-radius:8px;padding:4px}
.dragghost svg{width:100%;height:100%}
.pclose{position:absolute;right:6px;top:6px;min-height:36px;min-width:36px;padding:0;font-size:1.3rem;line-height:1}
.props.closed{display:none}
/* small screens (iPad, phones, touch-first): the sheet gets the whole width; symbols open as a pop-up; properties float over the sheet */
#app.compact .compactonly{display:inline-flex}
#app.compact .work{grid-template-columns:auto minmax(0,1fr);grid-template-areas:"tools canvas"}
#app.compact[data-level=view] .work{grid-template-columns:minmax(0,1fr);grid-template-areas:"canvas"}
#app.compact .secondary{display:none}
#app.compact details.compactonly{display:block}
#app.compact .bar .dtitle{max-width:22ch}
#app.compact .tools{flex-direction:column;flex-wrap:nowrap;align-items:stretch;align-self:start;gap:8px}
#app.compact .seg{flex-direction:column;border-radius:22px}
#app.compact .seg button{border-right:0;border-bottom:1px solid var(--line)}#app.compact .seg button:last-child{border-bottom:0}
#app.compact .tool,#app.compact #addsym,#app.compact #doneplace{flex-direction:column;gap:2px;min-width:64px;min-height:60px;padding:4px 2px;font-size:.68rem;line-height:1.1}
#app.compact .canvaswrap{height:calc(100vh - 255px);height:calc(100dvh - 255px);min-height:360px}
#app.compact .tools button,#app.compact .bar button,#app.compact .bar .btn{min-height:46px}
#app.compact .palette{display:none}
#app.compact .palette.open{display:block;position:fixed;left:8px;right:8px;top:8px;bottom:8px;max-height:none;z-index:50;box-shadow:0 12px 40px rgba(0,0,0,.35);padding:10px}
#app.compact .palette .grid{grid-template-columns:repeat(auto-fill,minmax(104px,1fr));gap:8px}
#app.compact .palette .symbtn{min-height:96px;font-size:.85rem}
#app.compact .palette .symbtn svg{width:56px;height:56px}
#app.compact .props{position:absolute;right:8px;top:8px;width:min(340px,calc(100% - 16px));max-height:calc(100% - 16px);z-index:4;box-shadow:0 8px 28px rgba(0,0,0,.28);padding-top:12px}
#app.compact .props h3{padding-right:40px}
#app.compact .zoom{top:auto;bottom:10px;right:auto;left:10px}
#app.compact .zoom button{min-height:46px;min-width:46px}
/* ---- menus built from <details> (same as bizcat) */
header .menu summary{list-style:none;cursor:pointer;padding:10px 4px;font-weight:600;color:var(--ink);display:flex;gap:6px;align-items:center}
header .menu summary::-webkit-details-marker{display:none}
.menu summary.on{color:var(--accent)}.menu summary::after{content:"\25BE";font-size:.75em;color:var(--mute)}
.menu{position:relative}.menu .pop{position:absolute;right:0;top:100%;min-width:230px;background:var(--card);border:1px solid var(--line);border-radius:12px;box-shadow:0 10px 28px rgba(0,0,0,.2);padding:6px;z-index:40}
.menu .pop a,.menu .pop button{display:block;width:100%;text-align:left;padding:12px;border-radius:8px;border:0;background:none;color:var(--ink);text-decoration:none;font:inherit;font-weight:500;min-height:44px}
.menu .pop a:hover,.menu .pop button:hover{background:var(--bg)}.menu .pop a.on{color:var(--accent);font-weight:700}
.menu .pop .head{font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;padding:8px 12px 2px}
.menu .pop form{margin:0;border-top:1px solid var(--line);margin-top:4px;padding-top:4px}
img.logoprev{max-width:260px;max-height:110px;background:#fff;border:1px solid var(--line);padding:6px;border-radius:8px}
button,.btn,.symbtn{-webkit-tap-highlight-color:transparent}

.ic{width:22px;height:22px;flex:none;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.tool,#addsym,#doneplace{gap:6px}
.bar .menu summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:6px;min-height:46px;padding:0 14px;border:1px solid var(--line);border-radius:8px;background:var(--card);color:var(--ink);font-weight:500}
.bar .menu summary::-webkit-details-marker{display:none}.bar .menu summary::after{content:"\25BE";font-size:.75em;color:var(--mute)}
#app.compact .bar .sp{display:none}
#app.compact #status{flex:1 1 0;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-align:right}

/* wire conductors: tick boxes as chips */
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:2px 0 6px}
.props label.chip{display:inline-flex;align-items:center;gap:6px;margin:0;padding:0 12px;min-height:40px;border:1px solid var(--line);border-radius:99px;background:var(--card);color:var(--ink);font-size:.9rem;cursor:pointer}
.chip input{width:18px;height:18px;margin:0}.chip:has(input:checked){border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}
.sw{width:14px;height:14px;border-radius:50%;border:1px solid #444;display:inline-block}
.sw-l1,.sw-dcp{background:#d71920}.sw-l2{background:#fff}.sw-l3{background:#1565c0}.sw-n,.sw-dcn{background:#000}.sw-e{background:linear-gradient(90deg,#1b8a3b 50%,#f5c400 50%)}.sw-comms{background:#0e7490}
.props .seg{margin:2px 0 6px}.props .seg button{min-height:40px;padding:0 12px}
.props .seg{display:flex;width:100%}.props .seg button{flex:1;padding:0 4px}

/* other people: comments panel, newer-version notice */
.cmtpanel{position:absolute;left:10px;top:10px;width:min(340px,calc(100% - 20px));max-height:calc(100% - 20px);overflow:auto;z-index:4;background:var(--card);border:1px solid var(--line);border-radius:12px;box-shadow:0 8px 28px rgba(0,0,0,.28);padding:12px}
.cmtpanel h3{margin:0 0 8px;padding-right:40px;font-size:1rem}.cmtpanel textarea{width:100%;margin:8px 0}
.cmtlist{max-height:40vh;overflow:auto}.cmt{border-bottom:1px solid var(--line);padding:8px 0;font-size:.92rem}.cmt.resolved .cmtbody{text-decoration:line-through;color:var(--mute)}
.cmtbody{white-space:pre-wrap;margin:2px 0 4px}.cmtres{min-height:34px;padding:0 10px;font-size:.85rem}
.banner.soft{border-color:var(--accent)}
#presence{font-size:.9rem}
#app.compact .bar{flex-wrap:nowrap}
#app.compact #presence{flex:0 1 auto;min-width:0;max-width:14ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#app.compact .bar .dtitle{flex:0 1 auto;min-width:0;max-width:18ch}
#app.compact #cmtbtn{display:none}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:8px 12px;margin-top:8px}.field{display:flex;flex-direction:column;gap:2px;font-size:.85rem;color:var(--mute)}
.stack{display:flex;flex-direction:column;gap:6px;margin-top:6px}.stack textarea{width:100%}.annexf{margin-top:6px}
details.card>summary{cursor:pointer}
/* ---- pack editor */
.pkapp{display:flex;flex-direction:column;gap:8px}
.pk-top .menu{position:relative}.pk-top .menu .pop{max-height:70vh;overflow:auto;min-width:260px}
.pk-main{display:grid;grid-template-columns:172px minmax(0,1fr) 340px;gap:10px;height:calc(100vh - 150px);min-height:420px}
.pk-left{display:flex;flex-direction:column;gap:8px;overflow:auto;padding:2px}
.pk-th{position:relative;border:1px solid var(--line);border-radius:8px;background:var(--card);padding:6px;cursor:pointer;flex:none;width:136px}
.pk-th.on{outline:2px solid var(--accent);outline-offset:1px}.pk-th.dragging{opacity:.6;outline:2px dashed var(--accent)}
.pk-thv{position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);margin:0 auto}
.pk-thv iframe,.pk-stage iframe{position:absolute;left:0;top:0;border:0;transform-origin:0 0;background:#fff;pointer-events:none}
.pk-stage iframe{pointer-events:auto}
.pk-thl{display:flex;align-items:center;gap:5px;margin-top:5px;font-size:.78rem;min-width:0}.pk-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0}
.pk-num{font-weight:700;min-width:1.6em;text-align:center;border:1px solid var(--line);border-radius:4px;padding:0 3px}.pk-pp,.pk-warn{font-size:.7rem;color:var(--mute)}.pk-warn{color:var(--bad);font-weight:700}
.pk-grip{position:absolute;right:4px;top:4px;width:28px;height:28px;display:flex;align-items:center;justify-content:center;background:var(--card);border:1px solid var(--line);border-radius:6px;cursor:grab;touch-action:none;user-select:none;font-size:1.1rem;opacity:.9}
.reordering .pk-th{cursor:grabbing}.pk-emptyp{padding:8px}
.pk-mid{display:flex;flex-direction:column;align-items:center;gap:8px;overflow:auto;min-width:0;padding:2px}
.pk-pager{display:flex;align-items:center;gap:10px;flex:none}
.pk-stage{position:relative;background:#fff;box-shadow:0 1px 8px rgba(0,0,0,.3);flex:none}
.pk-right{overflow:auto;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px;display:flex;flex-direction:column;gap:10px}
.pk-right h2{margin:0 0 2px;font-size:1.05rem}.pk-right h3{margin:6px 0 2px;font-size:.95rem}
.pk-right .field input,.pk-right .field select,.pk-right .field textarea{width:100%}
.check{display:flex;align-items:center;gap:6px}
.pk-photos{display:flex;flex-direction:column;gap:8px}.pk-photo{display:flex;flex-direction:column;gap:4px;border:1px solid var(--line);border-radius:8px;padding:6px}.pk-photo img{max-width:100%;max-height:120px;object-fit:contain;align-self:flex-start}
.pk-meta{border-top:1px solid var(--line);padding-top:8px}.pk-meta summary{cursor:pointer;margin-bottom:6px}.pk-meta .field{margin-top:6px}
.menuitem{display:block;width:100%;text-align:left;border:0;background:none;padding:8px 10px;border-radius:6px;color:var(--ink);font:inherit;cursor:pointer;text-decoration:none;min-height:40px}.menuitem:hover{background:var(--line)}.menunote{padding:4px 10px}
@media (max-width:1000px){
  .pk-main{display:flex;flex-direction:column;height:auto}
  .pk-left{flex-direction:row;overflow-x:auto;overflow-y:hidden}.pk-th{width:136px}
  .pk-mid{overflow:visible}.pk-right{max-height:none}
}
/* ---- datasheet details */
.lgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px;margin-top:10px}
.lpg{display:flex;flex-direction:column;gap:4px;align-items:center;border:2px solid var(--line);border-radius:8px;padding:5px;cursor:pointer;background:var(--card);font-size:.85rem}
.lpg.on{border-color:var(--accent);background:rgba(11,95,255,.07)}.lpg img{width:100%;height:auto;background:#fff;border:1px solid var(--line)}
.chips2{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px;max-height:150px;overflow:auto}
.chip2{border:1px solid var(--line);border-radius:99px;background:var(--card);color:var(--ink);padding:4px 10px;font:inherit;font-size:.85rem;cursor:pointer;min-height:34px}.chip2.model{border-color:var(--accent);font-weight:700}
.lepick{margin-top:8px}.libimp{margin-top:8px}