.cad-app{--cad-navy:#062f46;--cad-deep:#031e2d;--cad-blue:#078bd0;--cad-cyan:#54bce8;--cad-paper:#f7fafb;--cad-panel:#f9fbfc;--cad-line:#cddae0;--cad-muted:#68808b;color:#092f43;background:#eaf1f4;grid-template-rows:58px 50px minmax(0,1fr) 30px;width:100%;height:100dvh;min-height:600px;font-family:Arial,Helvetica,sans-serif;display:grid;overflow:hidden}.cad-app button{font:inherit}.cad-file-input{opacity:0;width:1px;height:1px;position:fixed;left:-9999px}.cad-header{z-index:30;color:#fff;background:linear-gradient(115deg,#073852,#031e2e 74%);border-bottom:1px solid #63bde333;justify-content:space-between;align-items:center;gap:18px;padding:0 16px;display:flex;position:relative;box-shadow:0 8px 28px #00213622}.cad-brand{align-items:center;gap:14px;min-width:0;display:flex}.cad-logo-plate{clip-path:polygon(7px 0,100% 0,100% calc(100% - 7px),calc(100% - 7px) 100%,0 100%,0 7px);background:#fff;align-items:center;padding:6px 12px;display:inline-flex;box-shadow:0 5px 16px #00182438}.cad-logo-plate img{filter:none;width:138px;height:auto;display:block}.cad-brand-divider{background:#ffffff2f;width:1px;height:30px}.cad-brand>div{white-space:nowrap;gap:6px;display:grid}.cad-brand strong{letter-spacing:.14em;font-size:10px;font-weight:700}.cad-brand small{color:#69c7ee;letter-spacing:.16em;align-items:center;gap:6px;font:8px Courier New,monospace;display:flex}.cad-header-actions{align-items:center;gap:10px;min-width:0;height:100%;display:flex}.cad-format-badges{gap:5px;margin-right:4px;display:flex}.cad-format-badges span{color:#d9edf5;letter-spacing:.08em;background:#ffffff07;border:1px solid #7db9d14a;place-items:center;min-width:44px;height:30px;font:8px Courier New,monospace;display:grid}.cad-format-badges span.dwg{color:#fff;border-color:#50c7f26e;grid-template-columns:auto auto;gap:3px;min-width:58px}.cad-format-badges span.dwg small{color:#fff;letter-spacing:.04em;background:#078bd0;padding:2px 3px;font-size:5px;font-weight:800}.cad-home-button,.cad-demo-button,.cad-open-button,.cad-tools-nav>summary{color:#fff;letter-spacing:.06em;cursor:pointer;border:1px solid #63bde34d;justify-content:center;align-items:center;gap:8px;height:38px;padding:0 12px;font-size:9px;font-weight:800;display:flex}.cad-home-button{background:#ffffff09;text-decoration:none}.cad-home-button:hover{background:#ffffff13;border-color:#63bde380}.cad-tools-nav{height:38px;position:relative}.cad-tools-nav>summary{background:#ffffff09;list-style:none}.cad-tools-nav>summary::-webkit-details-marker{display:none}.cad-tools-nav>summary:hover,.cad-tools-nav[open]>summary{background:#ffffff13;border-color:#63bde380}.cad-tools-nav>summary>svg:last-child{color:#70c8ea;transition:transform .18s}.cad-tools-nav[open]>summary>svg:last-child{transform:rotate(180deg)}.cad-tools-nav-panel{z-index:70;color:#173f52;background:#fff;border:1px solid #7fb8ce;width:270px;padding:7px;position:absolute;top:calc(100% + 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#072b3c0a}.cad-toolbar>button,.cad-toolbar-popover>button{color:#274e60;cursor:pointer;background:#fff;border:0;border-right:1px solid #e0e8eb;justify-content:center;align-items:center;gap:9px;height:100%;padding:0 14px;font-size:11px;transition:background .15s,color .15s;display:flex}.cad-toolbar>button:first-child{border-left:1px solid #e0e8eb}.cad-toolbar>button:hover,.cad-toolbar-popover>button:hover{color:#087fb8;background:#f1f7f9}.cad-toolbar>button.active,.cad-toolbar-popover>button.active{color:#087fba;background:#eaf6fb;box-shadow:inset 0 -2px #189cd8}.cad-toolbar>button:disabled{color:#a9b8be;cursor:not-allowed;background:#fafcfc}.cad-toolbar-spacer{flex:1}.cad-toolbar .cad-panel-toggle{width:48px;padding:0}.cad-unit-toggle{background:#f7fafb;border:1px solid #b9cbd3;flex:none;grid-template-columns:42px 48px;align-self:center;height:32px;margin:0 8px;display:grid}.cad-unit-toggle button{color:#607a85;cursor:pointer;background:0 0;border:0;border-right:1px solid #d4e0e4;font:700 10px Courier New,monospace}.cad-unit-toggle button:last-child{border-right:0}.cad-unit-toggle button:hover{color:#087fba;background:#eef7fa}.cad-unit-toggle button.active{color:#fff;background:#0b87bf}.cad-toolbar-popover{height:100%;position:relative}.cad-view-menu{z-index:45;border:1px solid var(--cad-line);background:#fff;width:180px;padding:6px;position:absolute;top:calc(100% + 1px);left:0;box-shadow:0 16px 40px #062b3d26}.cad-view-menu button{color:#315564;text-align:left;cursor:pointer;background:#fff;border:0;align-items:center;gap:10px;width:100%;padding:11px 12px;font-size:11px;display:flex}.cad-view-menu button:hover{color:#0784c0;background:#edf6f9}.cad-measure-menu{width:310px}.cad-measure-menu button{align-items:flex-start}.cad-measure-menu button>svg{flex:none;margin-top:2px}.cad-measure-menu button>span{gap:4px;display:grid}.cad-measure-menu b{font-size:11px}.cad-measure-menu 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strong{text-overflow:ellipsis;white-space:nowrap;font-size:11px;display:block;overflow:hidden}.cad-viewport{background:#eaf1f4;min-width:0;min-height:0;position:relative;overflow:hidden}.cad-viewport canvas{z-index:1;touch-action:none;outline:0;width:100%;height:100%;display:block;position:absolute;inset:0}.cad-viewport.measure-mode canvas{cursor:crosshair}.cad-view-badge{z-index:4;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#f9fcfddd;border:1px solid #9ebbc7aa;grid-template-columns:18px auto minmax(0,1fr);align-items:center;gap:7px;max-width:calc(100% - 36px);padding:8px 10px;display:grid;position:absolute;top:16px;left:18px;box-shadow:0 5px 16px #082f4013}.cad-view-badge svg{color:#148fc8}.cad-view-badge span{color:#fff;background:#0b7fb4;padding:4px 5px;font:800 8px Courier New,monospace}.cad-view-badge b{text-overflow:ellipsis;white-space:nowrap;color:#3b5c69;font-size:9px;font-weight:700;overflow:hidden}.cad-view-navigator{z-index:8;filter:drop-shadow(0 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#bed0d7!important}.cad-view-nav-arrow:hover{color:#0788c3;background:#e1f3fa;border-color:#68b4d3!important}.cad-view-nav-arrow:disabled,.cad-view-nav-iso:disabled{visibility:hidden;cursor:default}.cad-view-nav-arrow.north{top:0;left:60px;transform:rotate(180deg)}.cad-view-nav-arrow.south{bottom:0;left:60px}.cad-view-nav-arrow.west{top:60px;left:0;transform:rotate(180deg)}.cad-view-nav-arrow.east{top:60px;right:0}.cad-view-nav-iso{color:#547481;background:#f8fbfce8;border-radius:4px;width:30px;height:30px;position:absolute;bottom:4px;right:4px;box-shadow:0 3px 9px #173f5114;border:1px solid #b9ccd4!important}.cad-view-nav-iso:hover{color:#0984b9;background:#dff3fb;border-color:#65b6d8!important}.cad-view-navigator.locked{width:112px;height:112px}.cad-view-navigator.locked .cad-view-cube-svg{top:0;left:0}.cad-mouse-help{z-index:4;color:#66808b;pointer-events:none;background:#ffffffba;align-items:center;gap:6px;padding:7px 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