:root{--ultra-dark-blue: #090f29;--dark-blue: #0b1333;--blue: #719fff;--light-purple: #e1e3fc;--yellow: #f7ed69;--white: #ffffff;--ultra-light-grey: #f8f8f8;--light-grey: #dbdbdb;--grey: #b6b6b6;--dark-grey: #6d6d6d;--ultra-dark-grey: #494949;--bg: var(--ultra-dark-blue);--panel: var(--dark-blue);--panel-2: #141c40;--border: #283163;--text: var(--white);--muted: #9aa1c9;--accent: var(--yellow);--accent-hover: #fbf48f;--accent-contrast: var(--dark-blue);--blue-accent: var(--blue);--blue-soft: rgba(113, 159, 255, .16);--danger: #f2616b;--ok: #5bd18b;--font-primary: "DM Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-secondary: "Space Grotesk", "DM Sans", system-ui, sans-serif;font-family:var(--font-primary)}*{box-sizing:border-box}html,body,#root{margin:0;height:100%;width:100%;background:var(--bg);color:var(--text);overflow:hidden}button{font-family:inherit;cursor:pointer}.login-wrap{height:100%;display:flex;align-items:center;justify-content:center;background:radial-gradient(1200px 600px at 50% -10%,#16205a 0%,var(--bg) 62%)}.login-card{width:340px;background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:32px 28px;box-shadow:0 20px 60px #00000080}.login-card h1{margin:0 0 4px;font-size:22px}.login-card .brand{color:var(--blue-accent)}.login-card p{margin:0 0 22px;color:var(--muted);font-size:13px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.modal-card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:24px;max-width:520px;width:100%;max-height:90vh;overflow-y:auto}.modal-card h2{margin:0 0 8px;font-size:1.2rem}.invite-created{margin-top:16px;padding:12px;background:var(--panel-2);border-radius:8px;border:1px solid var(--border)}.invite-list{list-style:none;padding:0;margin:0}.invite-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px solid var(--border);font-size:13px}.field{margin-bottom:14px;display:flex;flex-direction:column;gap:6px}.field label{font-size:12px;color:var(--muted)}input,select{background:var(--panel-2);border:1px solid var(--border);color:var(--text);padding:9px 10px;border-radius:8px;font-size:13px;outline:none}input:focus,select:focus{border-color:var(--blue-accent);box-shadow:0 0 0 2px var(--blue-soft)}.btn{background:var(--accent);border:none;color:var(--accent-contrast);padding:10px 14px;border-radius:8px;font-size:13px;font-weight:700;width:100%}.btn:hover{background:var(--accent-hover)}.btn.secondary{background:var(--panel-2);border:1px solid var(--border);color:var(--text);width:auto}.btn.secondary:hover{border-color:var(--blue-accent);background:var(--panel)}.btn.danger{background:transparent;border:1px solid var(--danger);color:var(--danger);width:auto}.error{color:var(--danger);font-size:12px;margin:-6px 0 12px}.app{display:grid;grid-template-columns:240px 1fr 300px;grid-template-rows:60px 1fr;grid-template-areas:"top top top" "left center right";height:100%}.topbar{grid-area:top;display:flex;align-items:center;gap:12px;padding:0 14px;background:var(--panel);border-bottom:1px solid var(--border)}.topbar .logo{font-weight:700}.topbar .logo span{color:var(--blue-accent)}.topbar .spacer{flex:1}.topbar .brand-logo{height:60px;width:auto;margin-left:6px;mix-blend-mode:screen;pointer-events:none;-webkit-user-select:none;user-select:none}.topbar .layout-name{color:var(--muted);font-size:13px}.collab-indicator{color:var(--accent);font-size:12px;font-weight:600}.collab-reconnect{color:var(--muted);font-size:12px;font-style:italic}.save-form{display:flex;align-items:center;gap:6px}.left-panel{grid-area:left;background:var(--panel);border-right:1px solid var(--border);overflow-y:auto;display:flex;flex-direction:column}.right-panel{grid-area:right;background:var(--panel);border-left:1px solid var(--border);overflow-y:auto}.center{grid-area:center;position:relative}.canvas-host{position:absolute;top:0;right:0;bottom:0;left:0}.toolbar{display:flex;gap:6px;padding:8px;flex-wrap:wrap;border-bottom:1px solid var(--border)}.tool-btn{background:var(--panel-2);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:8px 10px;font-size:12px;flex:1;min-width:64px}.tool-btn.active{border-color:var(--blue-accent);background:var(--blue-soft);color:var(--white)}.section{padding:12px;border-bottom:1px solid var(--border)}.section h3{margin:0 0 10px;font-family:var(--font-secondary);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}.row{display:flex;align-items:center;gap:8px;margin-bottom:8px}.row label{font-size:12px;color:var(--muted);width:86px;flex-shrink:0}.row input,.row select{flex:1;width:100%}.note-input{width:100%;min-height:4.5em;resize:vertical;font:inherit;color:inherit;background:var(--panel-2);border:1px solid var(--border);border-radius:4px;padding:6px 8px}.xyz{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.xyz input{width:100%}.axis-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-bottom:8px}.axis-input{display:flex;align-items:stretch;gap:0;border-radius:6px;overflow:hidden}.axis-btn{color:#fff;font-size:11px;font-weight:700;border:none;padding:0 8px;min-width:30px;background:var(--axis, #555);display:flex;align-items:center;justify-content:center;transition:filter .12s ease}.axis-btn:hover{filter:brightness(1.15)}.axis-btn:active{filter:brightness(.9)}.axis-input input{flex:1;width:100%;min-width:0;border-radius:0;border-left:none}.hint{font-size:11px;color:var(--muted);line-height:1.5}.lib-tree{padding:8px 0}.lib-folder{font-size:13px}.lib-folder-row{display:flex;align-items:center;gap:6px;padding:4px 10px;cursor:pointer;-webkit-user-select:none;user-select:none}.lib-folder-row:hover{background:var(--panel-2)}.lib-item{display:flex;align-items:center;gap:6px;padding:5px 10px;font-size:12px;color:var(--text);cursor:grab;border-radius:6px;margin:1px 6px;background:var(--panel-2);border:1px solid var(--border)}.lib-item:hover{border-color:var(--blue-accent)}.lib-item .dot{color:var(--blue-accent)}.tree-group-label{font-family:var(--font-secondary);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:10px 0 4px}.tree-group-label:first-of-type{margin-top:0}.tree-list{max-height:220px;overflow-y:auto}.tree-row{display:flex;align-items:center;gap:8px;padding:5px 8px;border-radius:6px;font-size:12px;color:var(--text);cursor:pointer;border-left:2px solid transparent;-webkit-user-select:none;user-select:none}.tree-row:hover{background:var(--panel-2)}.tree-row.selected{background:var(--blue-soft);border-left-color:var(--blue-accent)}.tree-row.hidden-object{opacity:.45}.tree-row.hidden-object .tree-label{color:var(--muted)}.tree-row.child{padding-left:22px;color:var(--muted)}.tree-row.child.selected{color:var(--text)}.tree-row .ic{width:14px;text-align:center;color:var(--blue-accent);flex-shrink:0}.tree-row .tree-label{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tree-row .tree-meta{font-size:10px;color:var(--muted);flex-shrink:0}.tree-group-header{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:4px}.tree-group-header h3.tree-group-title{margin:0;font-size:13px;font-weight:600}.measure-tree .measure-row{align-items:flex-start}.measure-tree-label{display:flex;flex-direction:column;gap:2px;min-width:0}.measure-tree-stats{font-size:10px;color:var(--muted);line-height:1.35;white-space:normal}.measure-label{background:#090f29e0;border:1px solid var(--blue-accent);border-radius:4px;padding:4px 8px;font-family:var(--font-secondary);font-size:11px;line-height:1.35;color:var(--text);white-space:nowrap;box-shadow:0 1px 4px #00000059}.measure-label.selected{border-color:#f7ed69}.measure-label .measure-dist{margin-top:2px;padding-top:2px;border-top:1px solid rgba(113,159,255,.35);font-weight:600;color:#f7ed69}.muted{color:var(--muted);font-size:12px}.list-row{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:6px 8px;border:1px solid var(--border);border-radius:6px;margin-bottom:6px;font-size:12px;background:var(--panel-2)}.iconbtn{background:transparent;border:none;color:var(--muted);font-size:14px;padding:2px 6px;border-radius:4px}.iconbtn:hover{color:var(--text);background:var(--border)}.eyebtn{display:flex;align-items:center;justify-content:center;padding:2px 4px;flex-shrink:0}.eyebtn.off{color:var(--muted);opacity:.55}.eyebtn:hover{color:var(--blue-accent);opacity:1}.eye-icon{display:block}.viewport-toolbar{position:absolute;left:12px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:6px;padding:6px;background:#0b1333c7;border:1px solid var(--border);border-radius:12px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);z-index:5}.vp-btn{width:38px;height:38px;display:flex;align-items:center;justify-content:center;background:var(--panel-2);border:1px solid var(--border);border-radius:8px;color:var(--text);cursor:pointer;padding:0;transition:background .12s ease,border-color .12s ease}.vp-btn:hover{border-color:var(--blue-accent);background:var(--blue-soft)}.vp-btn.active{border-color:var(--blue-accent);background:var(--blue-soft);color:var(--white)}.vp-help{position:relative;display:flex}.vp-help-popup{position:absolute;left:calc(100% + 10px);bottom:0;width:270px;background:#0b1333f5;border:1px solid var(--border);border-radius:12px;padding:12px 14px;box-shadow:0 16px 40px #00000080;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);z-index:20}.vp-help-title{font-family:var(--font-secondary);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:10px}.vp-help-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:7px}.vp-help-list li{display:flex;align-items:center;gap:10px;font-size:12px}.vp-help-keys{display:inline-flex;align-items:center;flex-shrink:0;width:96px}.vp-help-plus{color:var(--muted);font-size:10px;margin:0 3px}.vp-help-label{color:var(--text);line-height:1.3}.poly-total{font-family:var(--font-secondary);font-size:22px;font-weight:700;color:var(--blue-accent);line-height:1.1}.poly-total span{font-size:12px;font-weight:500;color:var(--muted);margin-left:5px}.vp-help kbd{font-family:var(--font-secondary);font-size:10px;line-height:1;color:var(--white);background:var(--panel-2);border:1px solid var(--border);border-bottom-width:2px;border-radius:5px;padding:3px 5px;white-space:nowrap}.drag-hud{position:fixed;z-index:30;pointer-events:none;background:#0b1333eb;border:1px solid var(--blue-accent);border-radius:7px;padding:4px 9px;font-family:var(--font-secondary);font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--white);white-space:nowrap;box-shadow:0 6px 18px #00000073}.marquee-host{position:absolute;top:0;right:0;bottom:0;left:0;z-index:4;cursor:crosshair;touch-action:none}.marquee-rect{position:absolute;border:1px solid var(--blue-accent);background:var(--blue-soft);pointer-events:none}.vp-btn:disabled{opacity:.4;cursor:default}.vp-btn:disabled:hover{border-color:var(--border);background:var(--panel-2)}.drop-hint{position:absolute;top:12px;left:50%;transform:translate(-50%);background:var(--accent);color:var(--accent-contrast);font-weight:600;padding:6px 14px;border-radius:20px;font-size:12px;pointer-events:none}.statusbar{position:absolute;bottom:10px;left:10px;background:#0b1333d9;border:1px solid var(--border);border-radius:8px;padding:6px 12px;font-family:var(--font-secondary);font-size:12px;letter-spacing:.02em;color:var(--muted);pointer-events:none}.full{width:100%}.stack{display:flex;flex-direction:column;gap:8px}.inline{display:flex;gap:8px;align-items:center}