:root{color-scheme:dark;--bg:#0b1018;--panel:#121b27;--panel2:#182433;--line:#2a394b;--text:#edf4fc;--muted:#91a4ba;--accent:#55d6be;--danger:#ff6b6b}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.35 system-ui,-apple-system,Segoe UI,sans-serif;overflow:hidden}button,.button,input,select,textarea{font:inherit}button,.button{border:1px solid var(--line);background:var(--panel2);color:var(--text);border-radius:9px;padding:9px 12px;cursor:pointer}.primary{background:var(--accent);color:#071310;border-color:transparent;font-weight:750}.danger{color:#ff9f9f;margin-top:12px}.text-btn{border:0;background:none;color:var(--accent);padding:2px}header{height:68px;padding:10px 16px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);background:#0e1621}h1{font-size:21px;margin:0;letter-spacing:-.4px}h1 span{color:var(--accent)}small,.hint{color:var(--muted)}header nav{display:flex;gap:8px}main{display:grid;grid-template-columns:250px minmax(300px,1fr) 300px;height:calc(100vh - 68px)}aside{background:var(--panel);overflow:auto;padding:15px}.left-panel{border-right:1px solid var(--line)}.right-panel{border-left:1px solid var(--line)}section+section{margin-top:20px;padding-top:16px;border-top:1px solid var(--line)}h2{font-size:16px;margin:0 0 10px}h3{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:18px 0 8px}.drop{display:flex;flex-direction:column;align-items:center;padding:18px;border:1px dashed #52657c;border-radius:12px;background:#0e1722;cursor:pointer}.drop span{color:var(--muted);font-size:13px}.page-row,.nav-row{display:flex;align-items:center;justify-content:space-between;gap:6px;margin-top:10px}.page-row span{font-size:13px}.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px}.tool-grid .active{outline:2px solid var(--accent);color:var(--accent)}.section-title{display:flex;justify-content:space-between;align-items:center}.legend-item{display:grid;grid-template-columns:34px 1fr;gap:9px;padding:8px;border-radius:8px;cursor:pointer}.legend-item.active{background:#25364a}.legend-line{height:8px;border-radius:3px;align-self:center}.legend-item strong{display:block;font-size:13px}.legend-item small{font-size:11px}.workspace{position:relative;overflow:hidden;margin:0;border:0}.zoom-controls{position:absolute;z-index:5;right:12px;top:12px;display:flex;box-shadow:0 3px 15px #0008}.zoom-controls button{border-radius:0}.zoom-controls button:first-child{border-radius:8px 0 0 8px}.zoom-controls button:last-child{border-radius:0 8px 8px 0}#viewport{position:absolute;inset:0;overflow:auto;background-color:#111923;background-image:linear-gradient(#ffffff08 1px,transparent 1px),linear-gradient(90deg,#ffffff08 1px,transparent 1px);background-size:24px 24px}#stage{position:relative;width:100%;height:100%;transform-origin:top left}#drawing,#overlay{position:absolute;left:0;top:0}#overlay{overflow:visible;touch-action:none}.wire-path{fill:none;stroke-width:6;stroke-linecap:round;cursor:pointer;opacity:.88}.wire-path.selected{stroke-width:11;filter:drop-shadow(0 0 5px white)}.wire-path.faded{opacity:.1}.device{cursor:pointer}.device circle{fill:#fff;stroke:#15202c;stroke-width:3}.device text{fill:#08111b;font-size:12px;font-weight:800;text-anchor:middle;dominant-baseline:middle;pointer-events:none}.device.selected circle{stroke:var(--accent);stroke-width:6;filter:drop-shadow(0 0 6px var(--accent))}.device.trace circle{stroke:#ffe066;stroke-width:5}.device.faded{opacity:.18}#emptyState{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--muted);pointer-events:none}#emptyState strong{font-size:20px;color:var(--text)}label{display:block;color:var(--muted);font-size:12px;margin:10px 0}input,select,textarea{display:block;width:100%;margin-top:5px;background:#0c141e;border:1px solid var(--line);color:var(--text);border-radius:8px;padding:9px}.title-input{font-size:21px;font-weight:800;margin-bottom:12px}.eyebrow{text-transform:uppercase;color:var(--accent);font-size:11px;letter-spacing:.12em}.route-card{display:grid;grid-template-columns:auto 1fr;gap:8px 12px;background:#0c141e;border:1px solid var(--line);border-radius:10px;padding:12px;margin-top:14px}.route-card span{color:var(--muted)}.wire-list{display:grid;gap:6px}.wire-pill{padding:8px 10px;border-left:5px solid;border-radius:6px;background:#0c141e}.empty{color:var(--muted);font-size:13px}.wire-check{display:grid;grid-template-columns:20px 1fr;gap:7px;padding:7px;border-bottom:1px solid var(--line)}.wire-check input{margin:2px 0}.workspace.drop-active{outline:3px solid var(--accent);outline-offset:-3px}dialog{background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:14px;width:min(400px,90vw)}dialog::backdrop{background:#000a}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}#toast{position:fixed;left:50%;bottom:25px;transform:translate(-50%,20px);background:#eaf8f5;color:#071310;padding:10px 16px;border-radius:20px;opacity:0;transition:.2s;pointer-events:none;z-index:20}#toast.show{opacity:1;transform:translate(-50%,0)}@media(max-width:850px){header{height:auto;align-items:flex-start}header nav{overflow:auto;max-width:68vw}main{grid-template-columns:190px 1fr}.right-panel{position:fixed;right:0;top:68px;bottom:0;width:min(310px,85vw);z-index:8;box-shadow:-8px 0 30px #0008}.left-panel{padding:10px}body{font-size:14px}}@media(max-width:600px){main{grid-template-columns:150px 1fr}.left-panel h2{font-size:13px}.tool-grid{grid-template-columns:1fr}.right-panel{top:60px}header small{display:none}header nav button,header .button{padding:7px 9px;font-size:12px}}