:root{--navy:#0048c8;--ink:#0b2f7a;--orange:#f05020;--cyan:#40e0f8;--light:#e8f0fc;--yellow:#fff2cc;--grey:#e7e6e6;--red:#f8cbad;--line:#d0d4dc;--panel:380px}*{box-sizing:border-box}html,body{height:100%;margin:0}body{color:#1a1a1a;background:#f6f7f9;flex-direction:column;font:13px/1.4 system-ui,Segoe UI,sans-serif;display:flex;overflow:hidden}header{color:var(--ink);border-bottom:3px solid var(--navy);background:#fff;flex-wrap:nowrap;align-items:center;gap:6px;padding:5px 12px;display:flex;overflow:hidden}header .logo{width:auto;height:38px;margin-right:4px}header h1{color:var(--navy);letter-spacing:.02em;white-space:nowrap;margin:0 8px 0 0;font-size:15px;font-weight:600}header input#description{flex:120px;min-width:100px;max-width:320px}header input#jobRef{width:110px}header button{padding:5px 9px}header #who{white-space:nowrap;text-overflow:ellipsis;max-width:180px;overflow:hidden}header input{font:inherit;border:1px solid var(--line);background:#fff;border-radius:4px;padding:4px 7px}header .spacer{flex:1}header a{color:var(--navy);font-size:12px}button{font:inherit;border:1px solid var(--navy);color:var(--navy);cursor:pointer;white-space:nowrap;background:#fff;border-radius:4px;padding:5px 10px}button:hover{background:var(--light)}button.primary{background:var(--orange);border-color:var(--orange);color:#fff;font-weight:600}button.primary:hover{background:#d8461a}button.small{padding:2px 7px;font-size:12px}button.danger{color:#b23;border-color:#b23}details.advanced{margin:8px 0}details.advanced summary,details summary{cursor:pointer;color:var(--navy);margin:6px 0;font-size:12px;font-weight:600}details.advanced .grid{margin-top:6px}table.glance td:first-child{color:#555;width:40%}.row.eq{flex-wrap:nowrap;align-items:flex-end}.row.eq label.f.grow{flex:1}.row.eq label.f input{width:100%}header button.small{opacity:.8;padding:3px 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100%);justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.gateCard{border:1px solid var(--line);border-top:5px solid var(--navy);text-align:center;background:#fff;border-radius:10px;width:min(440px,92vw);padding:34px 40px 28px;box-shadow:0 12px 40px #0b2f7a1f}.gateCard img{width:auto;height:74px}.gateCard h2{color:var(--navy);margin:14px 0 6px;font-size:20px}.gateCard p{color:#333;margin:6px 0 18px}.gateCard button.primary{padding:10px 22px;font-size:15px}.gateCard .muted{margin:12px 0 0}#gateError:empty{display:none}#gateError{color:#b23}#layout{grid-template-columns:104px 1fr var(--panel);flex:1;min-height:0;display:grid}#tools{border-right:1px solid var(--line);scrollbar-width:thin;background:#fff;flex-direction:column;gap:2px;padding:6px 6px 10px;display:flex;overflow:hidden auto}#tools h4{color:#7a8190;text-transform:uppercase;letter-spacing:.06em;border-top:1px solid var(--line);margin:5px 0 2px;padding-top:6px;font-size:9.5px;font-weight:700}#tools 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label{color:#444;align-items:center;gap:4px;font-size:11px;display:flex}#centre{flex-direction:column;min-width:0;min-height:0;display:flex}#levels{border-bottom:1px solid var(--line);background:#eef0f4;align-items:flex-end;gap:4px;padding:6px 10px 0;display:flex}#levels button{border:1px solid var(--line);color:#333;background:#f6f7f9;border-bottom:none;border-radius:6px 6px 0 0;padding:6px 12px}#levels button.active{color:var(--navy);background:#fff;font-weight:600}#levels button.add{border:1px dashed var(--line);background:0 0}#canvasWrap{background:#fff;flex:1;min-height:0;position:relative}#canvas{touch-action:none;cursor:crosshair;width:100%;height:100%;display:block}#canvas.select{cursor:default}#typeIn{border:2px solid var(--orange);pointer-events:none;background:#fff;border-radius:6px;flex-direction:column;gap:2px;max-width:360px;padding:6px 10px;display:flex;position:absolute;top:10px;left:12px;box-shadow:0 6px 18px #0b2f7a26}#typeIn .val{color:var(--navy);font:700 18px/1.2 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10px;list-style:none}#warnings:empty{display:none}#warnings li{margin:2px 0;font-family:ui-monospace,Consolas,monospace;font-size:11px}#warnings li.error{color:#b23;font-weight:600}#isoWrap{border:1px solid var(--line);background:#fff;overflow:auto}#isoWrap svg{width:100%;height:auto}.hidden{display:none!important}dialog{border:1px solid var(--line);font:inherit;border-radius:8px;padding:16px 18px}dialog::backdrop{background:#0000004d}