:root{color-scheme:dark;--bg: #0f172a;--panel: #111827;--panel-2: #1f2937;--line: #334155;--text: #e5e7eb;--muted: #94a3b8;--accent: #38bdf8;--danger: #ef4444}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}body{min-height:100vh}button,input,select,textarea{font:inherit}input,select,textarea{width:100%;margin-top:.35rem;padding:.62rem .75rem;border:1px solid var(--line);border-radius:.7rem;background:#0b1120;color:var(--text)}textarea{resize:vertical}button{border:1px solid var(--line);border-radius:.75rem;background:linear-gradient(180deg,#1e293b,#0f172a);color:var(--text);padding:.7rem .9rem;cursor:pointer;transition:transform .12s ease,border-color .12s ease,background .12s ease}button:hover{transform:translateY(-1px);border-color:var(--accent)}button.active{border-color:var(--accent);background:linear-gradient(180deg,#0f4c81,#082f49)}button.danger{border-color:#ef444480;background:linear-gradient(180deg,#7f1d1df2,#450a0af2)}label{display:block;color:var(--muted);font-size:.92rem;margin-top:.9rem}strong{color:var(--text)}ul{padding-left:1rem;margin:.5rem 0 0}.app-shell{display:grid;grid-template-columns:320px minmax(0,1fr) 320px;min-height:100vh}.sidebar{padding:1rem;border-right:1px solid rgba(148,163,184,.12);overflow-y:auto;background:#020617e0}.right-sidebar{border-right:0;border-left:1px solid rgba(148,163,184,.12)}.panel{background:#111827f5;border:1px solid rgba(148,163,184,.12);border-radius:1rem;padding:1rem;margin-bottom:1rem;box-shadow:0 16px 40px #0f172a4d}.panel h2{margin:0 0 .8rem;font-size:1rem}.button-row{display:flex;gap:.5rem}.button-row.wrap{flex-wrap:wrap}.compact-top{margin-top:.65rem}.tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.5rem}.toggle-row{display:flex;flex-direction:column;gap:.45rem;margin-top:.9rem}.checkbox{display:flex;align-items:center;gap:.65rem;color:var(--text)}.checkbox input{width:auto;margin:0}.meta{color:var(--muted);line-height:1.45}.meta.small{font-size:.86rem}.editor-main{display:flex;flex-direction:column;min-width:0;min-height:100vh;background:radial-gradient(circle at top,rgba(14,165,233,.12),transparent 28%),#020617}.canvas-toolbar{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 1.25rem;border-bottom:1px solid rgba(148,163,184,.12)}.toolbar-subtitle{margin-left:.65rem;color:var(--muted)}.status-pill,.pill{display:inline-flex;align-items:center;gap:.35rem;border-radius:999px;background:#0ea5e91f;border:1px solid rgba(56,189,248,.2);color:#dbeafe;padding:.4rem .8rem;font-size:.9rem}.viewport{position:relative;flex:1;overflow:hidden;touch-action:none;background:linear-gradient(90deg,#0f172ad9,#020617e6),radial-gradient(circle at center,rgba(56,189,248,.05),transparent 55%)}.stage{position:absolute;top:0;left:0;transform-origin:top left;box-shadow:0 20px 48px #0f172a99}.floorplan-image,.overlay,.floorplan-placeholder{position:absolute;inset:0;width:100%;height:100%}.floorplan-image{object-fit:contain;user-select:none}.floorplan-placeholder{display:flex;align-items:center;justify-content:center;border:2px dashed rgba(148,163,184,.35);border-radius:1rem;color:var(--muted);background:#0f172a66}.overlay{overflow:visible}.svg-label{fill:#e5e7eb;paint-order:stroke;stroke:#020617d9;stroke-width:4px;font-size:20px;font-weight:600;pointer-events:none}.divider{height:1px;margin:1rem 0;background:#94a3b829}.validation-panel ul{list-style:none;padding:0}.issue{margin-top:.55rem;padding:.65rem .75rem;border-radius:.8rem;border:1px solid rgba(148,163,184,.12);background:#0f172abf;line-height:1.4}.issue.error{border-color:#ef444466}.issue.warning{border-color:#f59e0b66}.issue.info{border-color:#38bdf84d}.inspector-group{display:flex;flex-direction:column}.split-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.65rem}.read-only-grid input{color:#cbd5e1}.stats-grid div{padding:.9rem;border-radius:.85rem;background:#0f172abf;border:1px solid rgba(148,163,184,.12)}.stats-grid strong{display:block;font-size:1.35rem}.stats-grid span{color:var(--muted);font-size:.88rem}.legend-list{list-style:none;padding:0}.legend-list li{display:flex;align-items:center;gap:.65rem;margin-top:.55rem}.legend-dot{width:.9rem;height:.9rem;border-radius:999px;border:2px solid rgba(255,255,255,.9)}@media(max-width:1400px){.app-shell{grid-template-columns:280px minmax(0,1fr) 300px}}@media(max-width:1100px){.app-shell{grid-template-columns:1fr}.sidebar,.right-sidebar{border:0;border-bottom:1px solid rgba(148,163,184,.12)}.editor-main{min-height:70vh}}a.nav-link{display:inline-flex;align-items:center;justify-content:center;gap:.35rem;border-radius:.75rem;border:1px solid var(--line);background:linear-gradient(180deg,#1e293b,#0f172a);color:var(--text);padding:.68rem .95rem;text-decoration:none;transition:transform .12s ease,border-color .12s ease,background .12s ease}a.nav-link:hover{transform:translateY(-1px);border-color:var(--accent)}.toolbar-actions{align-items:center}.panel-heading-row{display:flex;align-items:center;justify-content:space-between;gap:.75rem;margin-bottom:.8rem}.panel-heading-row h2{margin:0}.split-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem}.read-only-grid input{color:var(--muted)}.stats-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem}.stats-grid div{display:flex;flex-direction:column;gap:.2rem;border:1px solid rgba(148,163,184,.12);border-radius:.9rem;padding:.85rem;background:#02061799}.stats-grid strong{font-size:1.25rem}.legend-list{list-style:none;padding:0;display:grid;gap:.55rem}.legend-dot{display:inline-block;width:.8rem;height:.8rem;border-radius:999px;margin-right:.6rem;vertical-align:middle}.inspector-group+.inspector-group{margin-top:1rem;padding-top:1rem;border-top:1px solid rgba(148,163,184,.12)}.list-row-button{width:100%;display:flex;align-items:center;justify-content:space-between;gap:.75rem}.small-pill{font-size:.72rem;padding:.2rem .55rem}.overlay-list{display:grid;gap:.5rem}.campus-shell .editor-main{background:radial-gradient(circle at top,rgba(34,197,94,.12),transparent 30%),radial-gradient(circle at bottom right,rgba(56,189,248,.08),transparent 28%),#020617}.map-stage{overflow:hidden;border-radius:1rem;background:#07111f}.map-underlay-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(148,163,184,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(148,163,184,.08) 1px,transparent 1px);background-size:80px 80px}.geo-overlay-image{position:absolute;object-fit:fill;pointer-events:none;border:1px dashed rgba(148,163,184,.35)}.svg-label{fill:#e2e8f0;font-size:14px;paint-order:stroke;stroke:#020617f2;stroke-width:4px;stroke-linejoin:round}.campus-tip-list{display:grid;gap:.45rem}@media(max-width:1280px){.app-shell{grid-template-columns:300px minmax(0,1fr)}.right-sidebar{grid-column:1 / -1;border-left:0;border-top:1px solid rgba(148,163,184,.12)}}@media(max-width:920px){.app-shell{grid-template-columns:1fr}.sidebar,.right-sidebar{border-right:0;border-left:0;border-top:1px solid rgba(148,163,184,.12)}.split-row,.stats-grid{grid-template-columns:1fr}}.campus-tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.selection-rect{fill:#38bdf81f;stroke:#7dd3fcf2;stroke-width:2px;stroke-dasharray:8 6;pointer-events:none}.reference-preview{display:flex;flex-direction:column;gap:.5rem}.reference-preview-image{width:100%;max-height:220px;object-fit:contain;border-radius:.85rem;border:1px solid rgba(148,163,184,.18);background:#0f172ad9}.map-tile-image{position:absolute;object-fit:fill;pointer-events:none;opacity:.92;user-select:none}.campus-area-fill{fill:#22c55e1f;stroke:#22c55e8c;stroke-width:2px}.campus-area-stroke{fill:none;stroke:#4ade80f2;stroke-width:3px;stroke-dasharray:9 6;stroke-linecap:round;stroke-linejoin:round}.campus-area-handle{fill:#86efac;stroke:#052e16;stroke-width:2px}.checkbox-compact{margin-top:0}.collapsible-panel{padding:0;overflow:hidden}.panel-summary{display:flex;align-items:center;justify-content:space-between;gap:.75rem;list-style:none;cursor:pointer;padding:1rem;font-size:1rem;font-weight:700}.panel-summary::-webkit-details-marker{display:none}.panel-summary:after{content:"▾";color:var(--muted);font-size:.9rem}.collapsible-panel:not([open]) .panel-summary:after{content:"▸"}.panel-content{padding:0 1rem 1rem}.compact-checkbox{margin-top:.35rem;justify-content:flex-end;white-space:nowrap}.unified-workspace{min-height:100vh;display:flex;flex-direction:column}.workspace-toolbar{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.85rem 1rem;border-bottom:1px solid rgba(148,163,184,.12);background:#020617f2;position:sticky;top:0;z-index:20}.workspace-title-group{display:flex;flex-direction:column;gap:.2rem;min-width:0}.workspace-body{flex:1;min-height:0}.workspace-body .app-shell{min-height:calc(100vh - 76px)}.workspace-import-dropzone{margin:0 0 .9rem;padding:.8rem .95rem;border:1px dashed rgba(148,163,184,.5);border-radius:.9rem;background:#0f172a80}.workspace-import-dropzone strong{color:#e2e8f0}.visualization-shell{min-height:100vh;background:radial-gradient(circle at top,rgba(14,165,233,.12),transparent 30%),#020617}.visualization-grid{display:grid;grid-template-columns:360px minmax(0,1fr);min-height:calc(100vh - 76px)}.visualization-sidebar{padding:1rem;border-right:1px solid rgba(148,163,184,.12);overflow-y:auto;background:#020617e0}.visualization-main{padding:1rem;overflow-y:auto}.visualization-results{display:grid;gap:1rem}.upload-card{display:flex;align-items:flex-start;justify-content:space-between;gap:.85rem;border:1px solid rgba(148,163,184,.12);border-radius:.9rem;padding:.8rem;background:#02061799}.route-node-summary{display:flex;flex-wrap:wrap;gap:.45rem;margin-bottom:.85rem}.svg-preview-frame{border:1px solid rgba(148,163,184,.12);border-radius:1rem;overflow:auto;background:#020617a6;padding:.75rem}.svg-preview-frame img{display:block;width:100%;height:auto}@media(max-width:1100px){.visualization-grid{grid-template-columns:1fr}.visualization-sidebar{border-right:0;border-bottom:1px solid rgba(148,163,184,.12)}}.route-tool-page{max-width:1400px;margin:0 auto;padding:1.25rem}.route-tool-hero,.route-tool-card{background:#111827f5;border:1px solid rgba(148,163,184,.12);border-radius:1rem;padding:1rem;box-shadow:0 16px 40px #0f172a4d}.route-tool-hero{margin-bottom:1rem}.route-tool-hero h1,.route-tool-card h2,.route-tool-svg-card h3{margin:0 0 .35rem}.route-tool-card{margin-bottom:1rem}.route-tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.route-tool-field{position:relative}.route-tool-field label{margin-top:0}.route-tool-suggestions{position:absolute;left:0;right:0;top:calc(100% + .35rem);z-index:20;background:#020617fa;border:1px solid rgba(148,163,184,.16);border-radius:.85rem;overflow:hidden;box-shadow:0 16px 40px #0f172a73}.route-tool-suggestion{display:block;width:100%;text-align:left;border:0;border-radius:0;background:transparent;padding:.75rem .9rem}.route-tool-suggestion+.route-tool-suggestion{border-top:1px solid rgba(148,163,184,.1)}.route-tool-actions{display:flex;align-items:center;gap:.9rem;margin-top:1rem;flex-wrap:wrap}.btn.primary{border-color:#38bdf873;background:linear-gradient(180deg,#082f49f2,#0c4a6ef2)}.btn.subtle{padding:.55rem .8rem}.route-tool-status,.route-tool-meta,.route-tool-svg-subtitle,.route-tool-warning,.route-tool-empty,.route-tool-summary-line{color:var(--muted)}.route-tool-section-header,.route-tool-svg-header{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:.75rem}.route-tool-node-list{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.9rem}.route-tool-node-pill{padding:.45rem .65rem;border:1px solid rgba(148,163,184,.12);border-radius:999px;background:#020617bf;font-size:.92rem}.route-tool-empty-inline{margin:0}.route-tool-alignment-card{overflow:hidden}.route-tool-alignment-controls{display:flex;flex-wrap:wrap;gap:.75rem;margin-bottom:1rem}.route-tool-alignment-grid{display:grid;grid-template-columns:minmax(260px,340px) minmax(0,1fr);gap:1rem;align-items:start}.route-tool-alignment-sliders{display:grid;gap:.85rem}.route-tool-alignment-sliders label{display:grid;gap:.35rem;color:var(--muted);font-size:.95rem}.route-tool-alignment-sliders input[type=number]{width:100%}.route-tool-alignment-preview{border:1px solid rgba(148,163,184,.12);border-radius:.95rem;background:#020617bf;padding:.75rem}.route-tool-alignment-stage{position:relative;width:100%;overflow:hidden;border-radius:.85rem;background:#020617d9}.route-tool-alignment-base,.route-tool-alignment-base svg{position:absolute;inset:0;width:100%;height:100%}.route-tool-alignment-image{position:absolute;transform-origin:top left;pointer-events:none}@media(max-width:1100px){.route-tool-alignment-grid{grid-template-columns:1fr}}.route-tool-svg-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:1rem}.route-tool-svg-card{border:1px solid rgba(148,163,184,.12);border-radius:.95rem;padding:.9rem;background:#020617b8}.route-tool-svg-preview{background:#020617bf;border-radius:.85rem;overflow:auto}.route-tool-svg-preview svg{display:block;width:100%;height:auto}.route-tool-svg-image-fallback{display:none}.route-tool-warning{margin-bottom:.6rem;font-size:.9rem}code{padding:.1rem .35rem;border-radius:.35rem;background:#0f172acc}@media(max-width:900px){.route-tool-grid{grid-template-columns:1fr}}.route-tool-hero-links{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:.9rem}.linkish{text-decoration:none}.route-tool-gps-note{flex-basis:100%;color:var(--muted);font-size:.92rem}.legacy-page{max-width:1600px;margin:0 auto;padding:1.25rem}.legacy-hero{margin-bottom:1rem}.legacy-frame-card{padding:0;overflow:hidden}.legacy-frame{width:100%;min-height:82vh;border:0;background:#fff}