@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap";:root{--font-ui: "Inter", system-ui, sans-serif;--font-mono: "JetBrains Mono", "Courier New", monospace;--primary: #2563eb;--primary-light: #3b82f6;--primary-dim: #dbeafe;--primary-hover: #1d4ed8;--bg-app: #f0f4f8;--bg-sidebar: #ffffff;--bg-header: #ffffff;--bg-canvas: #e8edf3;--surface: #ffffff;--surface-2: #f8fafc;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--text-label: #64748b;--border: #e2e8f0;--border-light: #f1f5f9;--border-focus: #3b82f6;--grid-major: rgba(37, 99, 235, .12);--grid-minor: rgba(37, 99, 235, .05);--grid-accent: rgba(37, 99, 235, .25);--c1-color: #2563eb;--c2-color: #16a34a;--c3-color: #dc2626;--c4-color: #7c3aed;--c5-color: #0891b2;--c8-color: #ea580c;--c9-color: #0284c7;--c10-color: #c026d3;--c11-color: #0d9488;--c13-color: #10b981;--shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 6px rgba(0,0,0,.05), 0 2px 4px rgba(0,0,0,.04);--shadow-lg: 0 10px 25px rgba(0,0,0,.08), 0 4px 8px rgba(0,0,0,.04);--shadow-xl: 0 20px 40px rgba(0,0,0,.1), 0 8px 16px rgba(0,0,0,.06);--sidebar-w: 260px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;overflow:hidden}body,button,input,select,textarea,span,p,div,table,th,td,h1,h2,h3,h4,h5,h6{font-family:var(--font-ui)!important}.font-mono,[class*=font-mono],code,pre,.font-mono *{font-family:var(--font-mono)!important}body{background-color:var(--bg-app);color:var(--text-primary);-webkit-font-smoothing:antialiased;text-rendering:geometricPrecision;font-size:13px;line-height:1.5}#root{height:100%}.font-mono{font-family:var(--font-mono)!important;font-variant-numeric:tabular-nums}.label-uppercase{font-size:10px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted)}.bg-blueprint{background-color:var(--bg-canvas);background-image:linear-gradient(var(--grid-major) 1px,transparent 1px),linear-gradient(90deg,var(--grid-major) 1px,transparent 1px),linear-gradient(var(--grid-minor) 1px,transparent 1px),linear-gradient(90deg,var(--grid-minor) 1px,transparent 1px);background-size:100px 100px,100px 100px,20px 20px,20px 20px;background-position:-1px -1px,-1px -1px,-1px -1px,-1px -1px}.sidebar{width:var(--sidebar-w);background:var(--bg-sidebar);border-right:1px solid var(--border);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;height:100%;overflow:hidden;z-index:40;flex-shrink:0}.sidebar-header{padding:16px;border-bottom:1px solid var(--border-light);background:var(--surface-2)}.sidebar-section-label{font-size:9px;font-weight:700;letter-spacing:.15em;text-transform:uppercase;color:var(--text-muted);padding:0 4px;margin-bottom:8px}.tool-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:8px 6px;border-radius:8px;border:1px solid transparent;cursor:pointer;transition:all .15s ease;background:transparent;color:var(--text-secondary);gap:5px;width:100%}.tool-btn:hover{background:var(--primary-dim);color:var(--primary);border-color:#2563eb33}.tool-btn.active{background:var(--primary);color:#fff;border-color:var(--primary-hover);box-shadow:0 2px 8px #2563eb4d}.tool-btn .tool-label{font-size:9px;font-weight:600;letter-spacing:.03em;text-align:center;line-height:1.2}.tool-button-active{background:var(--primary)!important;color:#fff!important;box-shadow:0 2px 8px #2563eb59}.app-header{height:48px;display:flex;align-items:center;justify-content:space-between;padding:0 10px;background:var(--bg-header);border-bottom:1px solid var(--border);box-shadow:var(--shadow-sm);z-index:50;flex-shrink:0;position:relative;overflow:visible!important}.header-tool-group{display:flex;align-items:center;gap:2px;background:var(--surface-2);border:1px solid var(--border);border-radius:8px;padding:2px;flex-shrink:0}.header-tool-pill{display:flex;align-items:center;gap:4px;padding:3px 6px;border-radius:6px;border:none;cursor:pointer;font-size:11px;font-weight:600;color:var(--text-secondary);background:transparent;transition:all .12s ease;white-space:nowrap}.header-tool-pill:hover{color:var(--text-primary);background:var(--surface)}.header-tool-pill.active{background:var(--primary);color:#fff;box-shadow:0 1px 4px #2563eb4d}.header-action-btn{display:flex;align-items:center;gap:4px;padding:0 7px;height:28px;border-radius:7px;border:1px solid var(--border);background:var(--surface-2);color:var(--text-secondary);cursor:pointer;transition:all .15s ease;font-size:11px;font-weight:600;letter-spacing:.01em;white-space:nowrap;flex-shrink:0}.header-action-btn:hover{background:var(--surface);color:var(--text-primary);border-color:var(--border-focus)}.header-action-btn.active{background:var(--primary-dim);color:var(--primary);border-color:#2563eb4d}.header-menu-pill{display:flex;align-items:center;gap:5px;padding:0 8px;height:28px;border-radius:7px;border:1px solid var(--border);background:var(--surface);color:var(--text-secondary);cursor:pointer;transition:all .15s ease;font-size:11px;font-weight:600;letter-spacing:.01em;white-space:nowrap;flex-shrink:0;-webkit-user-select:none;user-select:none}.header-menu-pill:hover{background:var(--surface-2);color:var(--text-primary);border-color:var(--border-focus)}.header-menu-pill.active{background:var(--primary-dim);color:var(--primary);border-color:#2563eb66}.header-dropdown-container{position:relative}.header-dropdown-menu{position:absolute;top:calc(100% + 6px);right:0;background:var(--surface);border:1px solid var(--border);border-radius:10px;box-shadow:0 12px 36px #0000002e,0 3px 8px #00000014;z-index:1000;min-width:230px;padding:6px;animation:fadeInDown .14s cubic-bezier(.16,1,.3,1)}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.header-dropdown-header{font-size:9px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);padding:5px 8px 3px}.header-dropdown-item{width:100%;display:flex;align-items:center;justify-content:space-between;padding:6px 9px;border-radius:6px;border:none;background:transparent;color:var(--text-secondary);font-size:11.5px;font-weight:600;cursor:pointer;transition:all .12s ease;text-align:left}.header-dropdown-item:hover{background:var(--surface-2);color:var(--text-primary)}.dropdown-check-badge{width:16px;height:16px;border-radius:4px;border:1.5px solid var(--border);display:flex;align-items:center;justify-content:center;background:var(--surface-2);color:transparent;transition:all .12s ease;flex-shrink:0}.dropdown-check-badge.active{background:var(--primary);border-color:var(--primary);color:#fff}@media(max-width:1550px){.header-tool-pill span{display:none!important}}@media(max-width:1400px){.header-btn-text-optional{display:none!important}.header-action-btn{padding:0 6px}}@media(max-width:1150px){.header-symbol-scale{display:none!important}}.properties-panel{background:var(--surface);border-left:1px solid var(--border);box-shadow:var(--shadow-md);overflow-y:auto;overflow-x:hidden}.glass-panel{background:#ffffffeb;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(226,232,240,.8);box-shadow:var(--shadow-lg)}.wall-dim-badge{font-family:var(--font-mono);font-size:11px;font-weight:600;fill:#1e3a5f;paint-order:stroke fill;stroke:#fff;stroke-width:3px;stroke-linejoin:round}@keyframes snapPulse{0%{opacity:.8;transform:scale(.8)}50%{opacity:1;transform:scale(1.2)}to{opacity:.8;transform:scale(.8)}}.snap-indicator{animation:snapPulse .5s ease-in-out}@keyframes flow{0%{stroke-dashoffset:32}to{stroke-dashoffset:0}}.tube-flow-animation{animation:flow 1.8s linear infinite}.scrollbar-hide::-webkit-scrollbar{display:none}.scrollbar-hide{-ms-overflow-style:none;scrollbar-width:none}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}input[type=range]{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:transparent;cursor:pointer}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;height:14px;width:14px;border-radius:50%;background:var(--primary);cursor:pointer;margin-top:-5px;box-shadow:0 0 6px #2563eb66;border:2px solid white}input[type=range]::-webkit-slider-runnable-track{width:100%;height:4px;cursor:pointer;background:var(--border);border-radius:2px}.animate-float{animation:float 3s ease-in-out infinite}@keyframes float{0%{transform:translateY(0)}50%{transform:translateY(-4px)}to{transform:translateY(0)}}.bom-row{display:flex;justify-content:space-between;align-items:center;padding:4px 0;border-bottom:1px solid var(--border-light);font-size:11px}.bom-row:last-child{border-bottom:none}.circuit-dot{width:8px;height:8px;border-radius:50%;display:inline-block;flex-shrink:0}.header-tool-pill:active,.tool-btn:active,.mobile-toggle-btn:active,.sidebar button:active,button:active{transform:scale(.95);filter:brightness(.92);transition:transform .1s cubic-bezier(.25,.46,.45,.94)}@media(max-width:1024px){:root{--sidebar-w: 240px}.app-header{padding:0 12px;padding-top:env(safe-area-inset-top,0);height:calc(48px + env(safe-area-inset-top,0));justify-content:space-between}.header-tool-group,.header-symbol-scale{display:none!important}.mobile-active-tool-badge{display:flex!important}button,.header-tool-pill,.tool-btn{min-height:38px}}@media(max-width:768px){.bg-blueprint{touch-action:none!important}.sidebar,aside,.sidebar-content{-webkit-overflow-scrolling:touch}input,select,textarea{font-size:16px!important}.sidebar{position:fixed;left:0;top:0;bottom:0;width:270px;height:100%;transform:translate(-100%);transition:transform .4s cubic-bezier(.16,1,.3,1);z-index:130;box-shadow:4px 0 30px #0003;padding-top:env(safe-area-inset-top,16px);padding-bottom:env(safe-area-inset-bottom,16px)}.sidebar.mobile-open{transform:translate(0)}aside{position:fixed;left:0;right:0;bottom:0;top:auto!important;height:62vh!important;width:100%!important;max-width:100%!important;border-radius:24px 24px 0 0;border-top:1px solid var(--border);border-left:none!important;background:#ffffffe0!important;backdrop-filter:blur(20px) saturate(190%)!important;-webkit-backdrop-filter:blur(20px) saturate(190%)!important;box-shadow:0 -8px 30px #0000001f;transform:translateY(100%)!important;transition:transform .4s cubic-bezier(.16,1,.3,1)!important;z-index:120;padding-bottom:calc(env(safe-area-inset-bottom,16px) + 8px)}aside.mobile-open{transform:translateY(0)!important;width:100%!important}aside:before{content:"";display:block;width:38px;height:5px;border-radius:2.5px;background:#cbd5e1;margin:8px auto 4px;flex-shrink:0}.header-tool-pill span{display:none!important}.app-header>div:nth-child(2)>div:nth-child(3){display:none!important}.mobile-toggle-btn{display:flex!important}.mobile-toggle-btn.animate-float{bottom:calc(16px + env(safe-area-inset-bottom,0px))!important;right:16px!important}.glass-panel{padding:8px 10px;font-size:10px}.drawer-backdrop{display:block!important;position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a59;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:100}}.cad-status-bar{position:absolute;bottom:0;left:0;right:0;height:28px;background:var(--bg-header);border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 10px;z-index:25;-webkit-user-select:none;user-select:none;font-size:11px;overflow:hidden;white-space:nowrap;gap:8px}.cad-status-group{display:flex;align-items:center;gap:5px;flex-shrink:0;white-space:nowrap}.cad-status-item{display:flex;align-items:center;gap:3px;font-size:10.5px;color:var(--text-secondary)}.cad-status-label{font-weight:700;color:var(--text-muted)}.cad-status-val{font-weight:700;color:var(--text-primary)}.cad-status-divider{width:1px;height:14px;background:var(--border);margin:0 3px}.cad-status-btn{display:flex;align-items:center;gap:4px;padding:1px 7px;height:22px;border-radius:5px;border:1px solid var(--border);background:var(--surface-2);color:var(--text-secondary);font-size:9.5px;font-weight:700;cursor:pointer;transition:all .12s ease;white-space:nowrap}.cad-status-btn:hover{background:var(--surface);color:var(--text-primary);border-color:var(--border-focus)}.cad-status-btn.active{background:var(--primary-dim);color:var(--primary);border-color:#2563eb66}.cad-status-btn-icon{display:flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:5px;border:1px solid var(--border);background:var(--surface-2);color:var(--text-secondary);cursor:pointer;transition:all .12s ease}.cad-status-btn-icon:hover{background:var(--surface);color:var(--text-primary);border-color:var(--border-focus)}.cad-status-shortcuts{display:flex;align-items:center;gap:12px;font-size:10px;color:var(--text-muted);white-space:nowrap;flex-shrink:1;min-width:0;overflow:hidden;text-overflow:ellipsis}@media(max-width:1450px){.cad-status-shortcuts{display:none!important}}.cad-status-shortcuts kbd{background:var(--surface-2);border:1px solid var(--border);border-radius:4px;padding:1px 4px;font-family:var(--font-mono);font-size:9px;font-weight:700;color:var(--text-secondary)}.cad-theme-pill{display:flex;background:var(--surface-2);border:1px solid var(--border);border-radius:6px;padding:1px;gap:1px}.cad-theme-btn{padding:1px 7px;border-radius:4px;border:none;background:transparent;font-size:9.5px;font-weight:700;color:var(--text-secondary);cursor:pointer;transition:all .12s ease}.cad-theme-btn.active{background:var(--primary);color:#fff}@media(max-width:768px){.cad-status-bar{height:24px;padding:0 6px;font-size:10px}.cad-status-shortcuts{display:none!important}}.cad-desktop-app-bar{display:flex;flex-direction:column;background:var(--bg-header);border-bottom:1px solid var(--border);box-shadow:0 2px 6px #0000000a;position:relative;z-index:100;-webkit-user-select:none;user-select:none;flex-shrink:0}.cad-window-titlebar{height:28px;background:#0f172a;color:#94a3b8;display:flex;align-items:center;justify-content:space-between;padding:0 10px;border-bottom:1px solid #1e293b;font-size:11px}.cad-branding-group{display:flex;align-items:center;gap:7px}.cad-app-icon{width:17px;height:17px;border-radius:4px;background:#2563eb;color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0}.cad-app-title{font-weight:800;color:#f1f5f9;letter-spacing:-.01em;font-size:11px}.cad-title-separator{color:#475569;font-size:10px}.cad-project-title-input-wrap{display:flex;align-items:center;background:#ffffff12;border:1px solid rgba(255,255,255,.12);border-radius:4px;padding:1px 6px;gap:2px}.cad-project-name-input{background:transparent;border:none;outline:none;color:#38bdf8;font-family:var(--font-mono);font-size:10.5px;font-weight:700;width:140px;padding:0}.cad-project-name-input:focus{background:#38bdf826;border-radius:2px}.cad-file-extension{color:#64748b;font-family:var(--font-mono);font-size:10px;font-weight:700}.cad-status-chip{font-size:9.5px;font-weight:700;padding:1px 6px;border-radius:10px;display:flex;align-items:center;gap:3px}.cad-status-chip.saved{background:#22c55e26;color:#4ade80;border:1px solid rgba(34,197,94,.3)}.cad-status-chip.modified{background:#f59e0b26;color:#fbbf24;border:1px solid rgba(245,158,11,.3)}.cad-quick-actions{display:flex;align-items:center;gap:3px}.cad-quick-btn{width:22px;height:22px;border-radius:4px;border:none;background:transparent;color:#94a3b8;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .12s ease}.cad-quick-btn:hover:not(:disabled){background:#ffffff1f;color:#f8fafc}.cad-quick-btn:disabled{opacity:.3;cursor:default}.cad-quick-divider{width:1px;height:12px;background:#334155;margin:0 3px}.cad-menubar-row{height:38px;background:var(--surface);display:flex;align-items:center;justify-content:space-between;padding:0 8px;gap:8px}.cad-menu-list{display:flex;align-items:center;gap:1px}.cad-menu-item-wrap{position:relative}.cad-menu-btn{padding:4px 8px;font-size:11.5px;font-weight:600;color:var(--text-secondary);border:none;background:transparent;border-radius:5px;cursor:pointer;display:flex;align-items:center;gap:5px;transition:all .12s ease}.cad-menu-btn:hover,.cad-menu-btn.active{background:var(--surface-2);color:var(--text-primary)}.cad-scale-pill-badge{font-size:9px;font-family:var(--font-mono);font-weight:800;background:var(--primary-dim);color:var(--primary);padding:1px 4px;border-radius:4px}.cad-sub-dropdown{position:absolute;top:calc(100% + 4px);left:0;min-width:220px;background:var(--surface);border:1px solid var(--border);border-radius:8px;box-shadow:0 10px 30px #00000026,0 2px 6px #00000014;padding:5px;z-index:1000;animation:fadeInDown .12s ease}.cad-sub-item{width:100%;display:flex;align-items:center;justify-content:space-between;padding:6px 8px;border:none;background:transparent;border-radius:5px;color:var(--text-secondary);font-size:11px;font-weight:600;cursor:pointer;text-align:left;transition:all .1s ease}.cad-sub-item:hover:not(:disabled){background:var(--primary-dim);color:var(--primary)}.cad-sub-item.highlight{background:var(--primary-dim);color:var(--primary);font-weight:700}.cad-sub-item.text-red{color:#ef4444}.cad-sub-item.text-red:hover{background:#fee2e2;color:#b91c1c}.cad-sub-item:disabled{opacity:.35;cursor:default}.cad-sub-label{display:flex;align-items:center;gap:7px}.cad-sub-shortcut{font-family:var(--font-mono);font-size:9.5px;font-weight:700;background:var(--surface-2);border:1px solid var(--border);border-radius:4px;padding:1px 5px;color:var(--text-muted)}.cad-sub-check{width:15px;height:15px;border-radius:4px;border:1.5px solid var(--border);display:flex;align-items:center;justify-content:center;background:var(--surface-2);color:transparent;flex-shrink:0}.cad-sub-check.active{background:var(--primary);border-color:var(--primary);color:#fff}.cad-sub-divider{height:1px;background:var(--border-light);margin:4px 2px}.cad-ribbon-tools{display:flex;align-items:center;gap:2px;background:var(--surface-2);border:1px solid var(--border);border-radius:7px;padding:2px}.cad-ribbon-btn{display:flex;align-items:center;gap:5px;padding:3px 8px;border-radius:5px;border:none;background:transparent;color:var(--text-secondary);font-size:11px;font-weight:600;cursor:pointer;transition:all .12s ease;white-space:nowrap}.cad-ribbon-btn:hover{background:var(--surface);color:var(--text-primary)}.cad-ribbon-btn.active{background:var(--primary);color:#fff;box-shadow:0 1px 4px #2563eb59}.cad-ribbon-shortcut{font-size:9px;font-family:var(--font-mono);font-weight:700;background:#00000014;border-radius:3px;padding:1px 4px}.cad-ribbon-btn.active .cad-ribbon-shortcut{background:#ffffff40;color:#fff}.cad-header-right{display:flex;align-items:center;gap:6px;flex-shrink:0}.cad-action-pill-btn{display:flex;align-items:center;gap:5px;padding:4px 10px;height:27px;border-radius:6px;border:1px solid var(--border);background:var(--surface-2);color:var(--text-secondary);font-size:11px;font-weight:700;cursor:pointer;transition:all .12s ease}.cad-action-pill-btn:hover{background:var(--surface);color:var(--primary);border-color:var(--border-focus)}.cad-panel-toggle-btn{display:flex;align-items:center;justify-content:center;width:27px;height:27px;border-radius:6px;border:1px solid var(--border);background:var(--surface-2);color:var(--text-secondary);cursor:pointer;transition:all .12s ease}.cad-panel-toggle-btn:hover,.cad-panel-toggle-btn.active{background:var(--primary-dim);color:var(--primary);border-color:#2563eb66}.cad-ucs-indicator{position:absolute;bottom:34px;left:14px;display:flex;flex-direction:column;align-items:center;pointer-events:none;z-index:20;opacity:.85;filter:drop-shadow(0 2px 4px rgba(0,0,0,.35))}.cad-ucs-label{font-family:var(--font-mono);font-size:9px;font-weight:800;color:#94a3b8;letter-spacing:.05em;margin-top:-2px}.cad-orientation-widget{position:absolute;top:14px;right:14px;pointer-events:none;z-index:20;display:flex;flex-direction:column;align-items:center;gap:3px;opacity:.85}.cad-orientation-compass{width:38px;height:38px;border-radius:50%;background:#0f172ab3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border:1.5px solid rgba(255,255,255,.25);display:flex;align-items:center;justify-content:center;box-shadow:0 4px 10px #00000040}.cad-orientation-north{color:#ef4444;font-family:var(--font-mono);font-size:11px;font-weight:900;letter-spacing:.05em}.cad-orientation-label{font-family:var(--font-mono);font-size:8.5px;font-weight:800;color:#64748b;letter-spacing:.08em;background:#0f172a99;padding:1px 5px;border-radius:3px}.cad-mobile-menu-btn{display:none;align-items:center;justify-content:center;width:20px;height:20px;border-radius:4px;border:1px solid #334155;background:#1e293b;color:#f1f5f9;cursor:pointer;padding:0;flex-shrink:0;margin-right:2px}.cad-mobile-menu-btn:hover{background:#334155}@media(max-width:1100px){.cad-ribbon-btn span{display:none!important}}@media(max-width:850px){.cad-mobile-menu-btn{display:flex!important}.cad-app-title,.cad-title-separator{display:none!important}.cad-project-title-input-wrap{max-width:130px}.cad-project-name-input{width:85px!important}.cad-menubar-row{overflow-x:auto;scrollbar-width:none;padding-bottom:2px}.cad-menubar-row::-webkit-scrollbar{display:none}.cad-ribbon-tools,.cad-ucs-indicator{display:none!important}}@media(max-width:580px){.cad-quick-actions .cad-quick-btn:nth-child(n+5){display:none!important}.cad-status-chip{display:none!important}}
