:root{--bar:#153c40;--bar-text:#dce8e4;--bar-muted:#9db8b2;--bar-border:#ffffff1a;--bar-accent:#7cc4ae;--panel:#f3f5f4;--surface:#fff;--line:#d7e0dc;--line-soft:#e4eae7;--canvas:#e6eae7;--paper:#fcfcf9;--ink:#233b43;--muted:#647d77;--faint:#8fa19b;--accent:#157e68;--accent-deep:#0f5f4e;--accent-soft:#e7f1ec;--accent-line:#a9cdbc;--focus:#2d9483;--state-energised:#cf342c;--state-earthed:#16845f;--state-off:#97a5a0;--radius:3px;--mono:ui-monospace, "SF Mono", SFMono-Regular, Menlo, monospace;--shadow-pop:0 8px 28px #233b4324, 0 1px 4px #233b431a;color:var(--ink);background:var(--panel);font-synthesis:none;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:14px}*{box-sizing:border-box}body{-webkit-font-smoothing:antialiased;margin:0}button,input,select{font:inherit;touch-action:manipulation}a{color:var(--accent);text-decoration:none}h1,h2,h3,p{margin-top:0}:focus-visible{outline:2px solid var(--focus);outline-offset:2px}kbd{font-family:var(--mono);border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);color:var(--muted);padding:2px 5px;font-size:10px}.site-header{background:var(--bar);height:52px;color:var(--bar-text);justify-content:space-between;align-items:center;padding:0 22px;display:flex}.brand{color:var(--bar-text);align-items:center;gap:10px;font-size:15px;font-weight:600;display:flex}.brand-mark{color:var(--bar-accent);font-size:18px}.site-header .context{color:var(--bar-muted);font-size:12px}.projects-page{max-width:1080px;margin:0 auto;padding:48px 28px 72px}.projects-heading{flex-wrap:wrap;justify-content:space-between;align-items:end;gap:20px;margin-bottom:28px;display:flex}.projects-heading h1{letter-spacing:-.5px;margin:0;font-size:26px}.projects-heading .intro{color:var(--muted);margin:8px 0 0;font-size:14px}.project-search{width:300px;max-width:100%;position:relative}.project-search svg{color:var(--faint);pointer-events:none;position:absolute;top:50%;left:12px;translate:0 -50%}.project-search input{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);width:100%;color:var(--ink);padding:11px 14px 11px 38px}.project-search input:focus{border-color:var(--focus);outline:none}.project-grid{grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:20px;display:grid}.project-card{border:1px solid var(--line);background:var(--surface);color:inherit;border-radius:4px;transition:box-shadow .16s,translate .16s;display:block;overflow:hidden}.project-card:hover{box-shadow:var(--shadow-pop);border-color:var(--accent-line);translate:0 -2px}.card-preview{background:var(--canvas);border-bottom:1px solid var(--line-soft);height:190px;padding:22px 56px 0;overflow:hidden}.card-preview img{object-fit:cover;object-position:top;width:100%;height:210px;box-shadow:0 2px 12px #233b431f}.card-body{justify-content:space-between;align-items:center;gap:12px;padding:18px 22px 20px;display:flex}.card-body h2{margin:0;font-size:16px}.card-body .card-meta{color:var(--muted);margin-top:5px;font-size:12px}.card-go{color:var(--faint);flex-shrink:0}.project-card:hover .card-go{color:var(--accent)}.empty-note{color:var(--muted)}.app{background:var(--panel);flex-direction:column;height:100dvh;display:flex}.app-bar{background:var(--bar);height:48px;color:var(--bar-text);flex-shrink:0;align-items:center;gap:18px;padding:0 14px 0 16px;display:flex}.app-bar .brand{font-size:14px}.app-bar .brand-mark{font-size:16px}.crumbs{align-items:center;gap:9px;min-width:0;font-size:12.5px;display:flex}.crumbs a{color:var(--bar-muted)}.crumbs a:hover{color:var(--bar-text)}.crumbs .separator{color:#ffffff40}.crumbs strong{color:var(--bar-text);text-overflow:ellipsis;white-space:nowrap;font-weight:600;overflow:hidden}.app-actions{align-items:center;gap:7px;margin-left:auto;display:flex}.palette-trigger{border:1px solid var(--bar-border);border-radius:var(--radius);min-width:190px;height:30px;color:var(--bar-muted);background:#ffffff12;align-items:center;gap:10px;padding:0 8px 0 12px;font-size:12.5px;display:flex}.palette-trigger:hover{color:var(--bar-text);border-color:#ffffff3d}.palette-trigger kbd{color:var(--bar-muted);background:0 0;border-color:#ffffff2e;margin-left:auto}.chrome-icon-btn{border-radius:var(--radius);width:30px;height:30px;color:var(--bar-muted);background:0 0;border:1px solid #0000;place-items:center;padding:0;display:grid}.chrome-icon-btn:hover{color:var(--bar-text);background:#ffffff17}.chrome-icon-btn[aria-pressed=true]{color:var(--bar-accent);background:#7cc4ae29}.shell{background:var(--panel);flex:1;min-height:0;display:flex}.panel{background:var(--surface);flex-direction:column;min-height:0;display:flex}.equipment-panel{border-right:1px solid var(--line);flex-shrink:0;width:246px}.inspector{border-left:1px solid var(--line);flex-shrink:0;width:274px}.panel-head{flex-shrink:0;justify-content:space-between;align-items:center;padding:14px 16px 10px;display:flex}.panel-title{letter-spacing:1.2px;text-transform:uppercase;color:var(--muted);font-size:10.5px;font-weight:700}.panel-meta{font-family:var(--mono);color:var(--faint);font-size:10px}.panel-scroll{flex:1;padding:0 12px 14px;overflow-y:auto}.panel-search{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);color:var(--faint);flex-shrink:0;align-items:center;gap:8px;margin:0 12px 10px;padding:0 10px;display:flex}.panel-search:focus-within{border-color:var(--focus);color:var(--accent)}.panel-search input{color:var(--ink);background:0 0;border:0;flex:1;min-width:0;padding:8px 0}.panel-search input:focus{outline:none}.equipment-list{gap:2px;margin:0;padding:0;list-style:none;display:grid}.equipment-list button{text-align:left;border-radius:var(--radius);width:100%;color:var(--ink);background:0 0;border:0;grid-template-columns:auto 1fr auto;align-items:center;gap:9px;padding:9px 10px;display:grid}.equipment-list button:hover{background:#157e6812}.equipment-list button.active{background:var(--accent-soft);box-shadow:inset 2px 0 0 var(--accent)}.eq-desig{font-family:var(--mono);color:var(--accent-deep);min-width:30px;font-size:11.5px;font-weight:700}.equipment-list button.active .eq-desig{color:var(--ink)}.eq-label{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.equipment-list button.active .eq-label{color:var(--ink)}.eq-dot{background:var(--state-off);border-radius:1px;width:8px;height:8px}.eq-dot.energised{background:var(--state-energised)}.eq-dot.earthed{background:var(--state-earthed)}.panel-empty{color:var(--faint);padding:18px 10px;font-size:12px}.insp-body{flex:1;padding:4px 16px 16px;overflow-y:auto}.insp-body h2{letter-spacing:-.3px;font-size:21px;font-family:var(--mono);margin:4px 0 0}.insp-sub{color:var(--muted);margin:3px 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button:hover{border-color:var(--accent);color:var(--accent-deep);background:var(--accent-soft)}.insp-empty{text-align:center;color:var(--faint);padding:56px 10px}.insp-empty svg{color:#b3c4bd}.insp-empty h2{color:var(--ink);margin:14px 0 6px;font-size:14px}.insp-empty p{margin:0;font-size:12px;line-height:1.6}.sheet-area{background:var(--canvas);flex-direction:column;flex:1;min-width:0;min-height:0;display:flex}.drawing-body{flex:1;min-height:0;display:flex}.sheet-tabs{background:var(--canvas);border-bottom:1px solid var(--line);flex-shrink:0;gap:2px;padding:0 10px 0 0;display:flex;overflow-x:auto}.sheet-tabs button{color:var(--muted);background:0 0;border:0;border-bottom:2px solid #0000;border-radius:0;flex-shrink:0;align-items:center;gap:8px;margin-bottom:-1px;padding:12px 14px 10px;font-size:12px;font-weight:500;display:flex}.sheet-tabs button:hover{color:var(--ink);background:#ffffff4d}.sheet-tabs button.active{border-bottom-color:var(--accent);color:var(--ink);background:#ffffff8c;font-weight:600}.tab-index{font-family:var(--mono);color:var(--muted);background:#233b4314;border-radius:2px;padding:2px 6px;font-size:10px}.sheet-tabs button.active .tab-index{background:var(--accent-soft);color:var(--accent-deep)}.tool-rail{background:var(--panel);border-right:1px solid var(--line);flex-direction:column;flex-shrink:0;align-items:center;gap:4px;width:44px;padding:8px 0;display:flex}.rail-btn{border-radius:var(--radius);width:32px;height:32px;color:var(--muted);background:0 0;border:1px solid #0000;place-items:center;padding:0;display:grid}.rail-btn:hover{background:var(--surface);border-color:var(--line);color:var(--ink)}.rail-btn[aria-pressed=true]{background:var(--accent-soft);border-color:var(--accent-line);color:var(--accent-deep)}.rail-gap{background:var(--line-soft);flex-shrink:0;width:20px;height:1px;margin:3px 0}.drawing-area{flex-direction:column;flex:1;min-width:0;min-height:0;display:flex}.drawing-stage{background:var(--canvas);background-image:radial-gradient(#94a49e4d .7px,#0000 .7px);background-size:13px 13px;flex:1;min-height:0;position:relative}.drawing-canvas{touch-action:none;cursor:grab;-webkit-user-select:none;user-select:none;width:100%;height:100%;display:block;position:absolute}.drawing-canvas:active{cursor:grabbing}.drawing-canvas.pan-tool{cursor:grab}.asset-hit{cursor:pointer;vector-effect:non-scaling-stroke;transition:fill .1s}.drawing-canvas g[role=button]:hover .asset-hit{fill:#3148581a}.drawing-canvas g[role=button][aria-pressed=true]:hover .asset-hit{fill:#0000}.drawing-canvas g[role=button]:focus{outline:none}.drawing-canvas g[role=button]:focus-visible .asset-hit{stroke:#314858;stroke-width:3px}.state-overlay{fill:none;stroke:#657986;stroke-width:calc(2.5px * 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var(--line);background:var(--surface);max-width:320px;box-shadow:var(--shadow-pop);color:var(--ink);justify-items:start;gap:10px;padding:14px 16px;font-size:13px;display:grid;position:absolute;top:16px;left:16px}.image-message button{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);padding:7px 12px;font-size:12px}.image-message button:hover{border-color:var(--accent);color:var(--accent-deep)}.status-bar{background:var(--surface);border-top:1px solid var(--line);height:27px;color:var(--muted);white-space:nowrap;flex-shrink:0;align-items:center;gap:8px;padding:0 14px;font-size:11px;display:flex;overflow:hidden}.status-sheet{color:var(--ink);font-weight:600}.status-sep{color:var(--faint)}.status-coords{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--muted);border-left:1px solid var(--line-soft);padding-left:14px;font-size:10.5px}.status-spacer{flex:1}.status-legend{align-items:center;gap:14px;display:flex}.status-legend span{align-items:center;gap:6px;display:flex}.status-legend i{background:var(--state-off);border-radius:1px;width:8px;height:8px}.status-legend .energised{background:var(--state-energised)}.status-legend .earthed{background:var(--state-earthed)}.palette::backdrop{z-index:20;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#153c4047;position:fixed;inset:0}.palette{color:var(--ink);z-index:21;border:1px solid var(--line);background:var(--surface);width:min(560px,92vw);box-shadow:var(--shadow-pop);border-radius:5px;flex-direction:column;max-height:66vh;margin:0;padding:0;display:flex;position:fixed;top:14vh;left:50%;overflow:hidden;translate:-50%}.palette-input-row{border-bottom:1px solid var(--line-soft);color:var(--faint);flex-shrink:0;align-items:center;gap:12px;padding:14px 18px;display:flex}.palette-input-row input{color:var(--ink);background:0 0;border:0;flex:1;font-size:15px}.palette-input-row input:focus{outline:none}.palette-results{padding:8px;overflow-y:auto}.palette-group{letter-spacing:1.2px;text-transform:uppercase;color:var(--faint);padding:10px 10px 5px;font-size:10px;font-weight:700}.palette-item{text-align:left;border-radius:var(--radius);width:100%;color:var(--ink);background:0 0;border:0;align-items:center;gap:10px;padding:10px 12px;font-size:13px;display:flex}.palette-item.active{background:var(--accent-soft);box-shadow:inset 2px 0 0 var(--accent)}.palette-item .item-hint{color:var(--faint);font-size:11px;font-family:var(--mono);flex-shrink:0;margin-left:auto}.palette-item .item-icon{color:var(--faint);flex-shrink:0;place-items:center;display:grid}.palette-item.active .item-icon{color:var(--accent-deep)}.palette-empty{text-align:center;color:var(--faint);padding:26px;font-size:13px}.palette-footer{border-top:1px solid var(--line-soft);color:var(--faint);background:var(--panel);flex-shrink:0;gap:16px;padding:9px 16px;font-size:10.5px;display:flex}.loading{z-index:10;background:var(--surface);border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow-pop);padding:14px;font-size:13px;position:fixed;top:0;left:40%}.error-page{background:var(--panel);place-items:center;min-height:100dvh;display:grid}.error-card{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-pop);border-radius:4px;max-width:420px;padding:40px 46px}.error-card .code{font-family:var(--mono);color:var(--accent);letter-spacing:2px;font-size:12px}.error-card h1{margin:10px 0 8px;font-size:20px}.error-card p{color:var(--muted);margin-bottom:22px;font-size:13.5px;line-height:1.6}.error-card a{font-weight:600}@media (width<=1200px){.inspector{width:240px}}@media (width<=980px){.palette-trigger{min-width:0}.palette-trigger .palette-trigger-label{display:none}}@media (width<=880px){.shell{flex-direction:column}.equipment-panel,.inspector{border-left:0;border-right:0;border-top:1px solid var(--line);order:2;width:auto}.panel-resize{display:none}.inspector{order:3}.sheet-area{border-bottom:1px solid var(--line);flex-direction:column;flex:none;order:0;height:58dvh;min-height:380px}.drawing-body{flex-direction:column}.drawing-area{flex:1;order:1}.tool-rail{border-right:0;border-top:1px solid var(--line);flex-direction:row;order:2;justify-content:center;width:auto;height:44px;padding:0 10px}.viewer-settings{margin-top:0}.viewer-settings section{bottom:calc(100% + 8px);left:auto;right:0}.rail-gap{width:1px;height:20px;margin:0 3px}.insp-grid{flex-wrap:wrap;gap:12px;display:flex}.insp-grid dt,.insp-grid dd{border-bottom:0;padding:0}.insp-empty{padding:20px 10px}.status-coords{display:none}}@media (width<=640px){.projects-page{padding:28px 18px 48px}.app-bar{gap:10px;padding:0 10px}.app-bar .brand{white-space:nowrap;flex-shrink:0;font-size:12.5px}.app-bar .brand-mark{font-size:14px}.crumbs{gap:6px;min-width:0}.status-legend{display:none}.projects-heading h1{font-size:22px}.sheet-area{height:52dvh;min-height:320px}.card-preview{height:150px;padding:14px 36px 0}.card-preview img{height:165px}}.status-legend i{border-top:3px solid #657986;border-radius:0;width:16px;height:0;background:0 0!important}.status-legend i.energised{border-color:#cf342c}.status-legend i.earthed{border-color:#16845f}.status-legend i.open,.status-legend i.disconnected{border-top-style:dashed}.status-legend i.boundary{border-color:#526f7d}.status-legend i.selected{border-color:#314858}.status-legend i.conflict{border:1px solid #861c15;height:9px;background:repeating-linear-gradient(-45deg,#fff0ed,#fff0ed 2px,#861c15 2px 4px)!important}.eq-dot.conflict{background:#861c15}.eq-dot.boundary{background:#526f7d}.status-bar{flex-wrap:wrap;height:auto;min-height:28px}.status-legend{flex-wrap:wrap}.state-outline-backing{fill:none;stroke:#fcfcf9;stroke-width:calc(7px * var(--state-detail,1));vector-effect:non-scaling-stroke}.real-asset-hit{stroke:#0000;stroke-width:14px}polyline.real-asset-hit,polyline.state-overlay,polyline.state-outline-backing{fill:none}.asset-disambiguation{z-index:8;background:#fff;border:1px solid #bccbc9;gap:6px;max-width:min(360px,90%);padding:12px;display:grid;position:absolute;top:64px;left:16px;box-shadow:0 4px 18px #18333026}.asset-disambiguation button{text-align:left;padding:8px}.source-location-outline{fill:none;stroke:#52758b;stroke-width:1px;vector-effect:non-scaling-stroke}.assembly-outline{fill:none;stroke:#657986;stroke-width:1.5px;stroke-dasharray:6 4;vector-effect:non-scaling-stroke}.terminal-outline{fill:none!important}.conductor-hover-target{fill:none;stroke:#0000;stroke-width:12px;vector-effect:non-scaling-stroke;pointer-events:stroke;cursor:help}.conductor-state-overlay{--conductor-width:1.5px;--conductor-color:#687a86;fill:none;stroke:var(--conductor-color);stroke-width:calc(var(--conductor-width) * 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