:root{font:12px "Segoe UI",Tahoma,sans-serif;color:#dce6ef;background:#202b37;color-scheme:dark;--panel:#263441;--line:#3c5063;--accent:#69d5ff;--view:#17222c}*{box-sizing:border-box}body{margin:0;height:100dvh;display:flex;flex-direction:column;overflow:hidden}button,input,summary{font:inherit}button{color:inherit;cursor:pointer;background:#2c3d4e;border:1px solid var(--line);border-radius:4px;padding:5px 10px}button:hover{background:#365369;border-color:#59839e}button:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}button.active{background:#176482;border-color:#69d5ff;color:#eafaff}button:disabled{opacity:.36;cursor:not-allowed}button:disabled:hover{background:#2c3d4e;border-color:var(--line)}[hidden]{display:none!important}img{object-fit:contain}button img{display:block;pointer-events:none}kbd{font:10px "Segoe UI",sans-serif;color:#91a5b8;margin-left:25px}details{position:relative}summary{cursor:pointer;list-style:none;user-select:none}summary::-webkit-details-marker{display:none}details[open]>summary{background:#364b5e;color:white}.menu{position:absolute;left:0;top:100%;z-index:30;min-width:205px;background:#202d39;border:1px solid #4a6175;padding:5px;box-shadow:0 8px 25px #0006;border-radius:3px}.menu button{width:100%;border:0;background:transparent;text-align:left;padding:8px 11px;white-space:nowrap;display:flex;justify-content:space-between;align-items:center}.menu button:hover{background:#1c6986}.menu button.active:before{content:'✓';margin-right:9px;color:var(--accent)}hr{border:0;border-top:1px solid var(--line);margin:4px}.menubar{display:flex;align-items:center;height:27px;min-height:27px;background:#22303e;border-bottom:1px solid var(--line);gap:1px;padding:0 8px}.menubar summary{padding:5px 10px;font-size:12px}.appmark{color:#8ec985;text-decoration:none;margin-right:5px;font-size:18px}.document-title{font-size:11px;color:#8fa5b6;margin-left:20px}.document-title span{color:#6e889c}.web-tag{font-size:9px;letter-spacing:1px;color:#88bca8;margin-left:auto;padding:3px 8px}.about{font-weight:600;display:flex;align-items:center;gap:5px;background:#17232f;height:23px;padding:1px 10px}.about img{width:15px;height:15px}.toolbar{height:35px;min-height:35px;background:#253442;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:3px;padding:2px 8px}.grip{color:#71869b;margin-right:3px}.icon-button{width:31px;height:30px;display:grid;place-items:center;padding:3px;background:#293b4b}.icon-button img{width:23px;height:23px}.icon-button.glyph{font-size:22px;font-family:Arial,sans-serif}.toolbar i{height:25px;width:1px;background:#4b5e6c;margin:0 6px}.toolbar-right{margin-left:auto;display:flex;align-items:center;gap:15px}.save-state{font-size:10px;color:#83a99b}.small-button{font-size:11px;padding:3px 12px}.categories{display:flex;height:24px;min-height:24px;background:#1e2a36;border-bottom:1px solid var(--line);gap:2px}.categories button{font-size:10px;padding:2px 15px;border-radius:4px 4px 0 0;background:#1e2a36}.categories button.active{background:#0d637f}.categories button:disabled{opacity:.48}main{display:flex;flex:1;min-height:0;gap:5px}.tools{width:146px;min-width:146px;background:#263441;display:flex;flex-direction:column;overflow:auto}.toolbox-title{padding:7px 8px 10px;font-size:11px}.tool-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:6px;padding:6px 10px}.tool-grid button{height:43px;padding:5px;background:#354653;border:1px solid #526472;border-radius:5px;display:grid;place-items:center}.tool-grid button:hover{background:#3d596c}.tool-grid button.active{background:#185f79;border-color:#69d5ff}.tool-grid img{width:33px;height:33px}.tool-help{font-size:11px;color:#839aaf;padding:22px 12px;line-height:1.7;display:flex;flex-direction:column;gap:8px}.tool-help b{color:#b8c9d7;font-weight:400}.shortcuts-link{font-size:10px;margin:auto 8px 9px;padding:6px;background:transparent;color:#8ca3b6;border-color:#354b5d;white-space:nowrap}.center-column{flex:1;min-width:0;min-height:0;display:flex;flex-direction:column}#workspace{flex:1;min-height:0;position:relative;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:4px;background:#3b4b59}.view{position:relative;min-width:0;min-height:0;overflow:hidden;background:var(--view)}.view-title{position:absolute;top:0;left:0;border-radius:0;padding:1px 11px;font-size:10px;font-weight:600;background:#202d39;border:1px solid #425362;border-top:0;z-index:3}.view.active .view-title{background:#1c5d76;border-color:#5caec8}.view canvas{display:block;width:100%;height:100%;touch-action:none}.view.active{outline:1px solid #4c7186;outline-offset:-1px}.shading-menu{position:absolute;right:5px;top:4px;z-index:7;font-size:10px}.shading-menu summary{padding:3px 9px;background:#1e2c38;border:1px solid #354a5e;border-radius:3px;color:#b3c8d9}.shading-menu .menu{left:auto;right:0;min-width:145px}.axis-widget{position:absolute;width:64px;height:64px;left:13px;bottom:15px;pointer-events:none;z-index:2}.axis-widget svg{width:100%;height:100%;overflow:visible}.axis-widget text{font-size:10px;font-weight:600}#workspace.single{display:block}#workspace.single .view{display:none;height:100%}#workspace.single .view.maximized{display:block}#snapmark{position:fixed;display:none;width:9px;height:9px;border:1px solid #69e8ce;pointer-events:none;z-index:20;transform:translate(-50%,-50%)}.command-panel{margin-top:3px;flex-shrink:0;background:#263441;padding:0 8px 5px;border:1px solid var(--line)}#status{height:21px;font-size:11px;font-style:italic;line-height:20px;white-space:nowrap;text-overflow:ellipsis;overflow:hidden;border-bottom:1px solid #405368;color:#cbd8e6}#command-form{display:flex;gap:6px;align-items:center;margin-top:3px}#command-form label{color:#69d5ff;font-size:11px;font-weight:600}#command{width:100%;min-width:0;padding:4px 7px;height:25px;border:1px solid #43586b;background:#182632;border-radius:2px;color:#dce6ef;font-size:11px}#command::placeholder{color:#7f96a9;font-size:10px}#command-form button{padding:1px 7px;height:25px;color:#85c7dd;background:#233441}.properties{width:clamp(250px,20vw,350px);flex-shrink:0;min-height:0;display:flex;flex-direction:column;background:#263441;border-left:1px solid #3d5063}.scene-panel{height:25%;min-height:160px;display:flex;flex-direction:column}.panel-title{height:28px;min-height:28px;padding:6px 9px;display:flex;align-items:center;justify-content:space-between;font-size:12px;background:#232f3b}.panel-title span{font-size:10px;color:#738da2}.scene-columns{display:grid;grid-template-columns:1fr 47px 35px;background:#263543;border-bottom:1px solid #435568;min-height:26px;color:#9dafc1;font-size:10px}.scene-columns span{padding:6px;border-right:1px solid #435568}.scene-columns span:last-child{border:0}.scene-root{font-size:11px;padding:5px 8px 3px;background:#202c37}.scene-root span{margin-left:5px}#objects{overflow:auto;flex:1;background:#202c37;padding-bottom:7px}.scene-row{display:grid;grid-template-columns:1fr 47px 35px;min-height:24px;align-items:center}.scene-row.selected{background:#1b617d}.scene-row .object-name{display:flex;align-items:center;gap:5px;min-width:0;padding:3px 5px 3px 23px;font-size:11px;border:0;background:transparent;border-radius:0;text-align:left;height:24px}.object-name span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.object-name img{width:14px;height:14px;opacity:.75}.scene-row button.scene-toggle{margin:auto;width:23px;height:21px;display:grid;place-items:center;padding:3px;background:#304454;border-color:#445c70}.scene-toggle img{width:14px;height:14px}.scene-row.locked .object-name{color:#8b9ead}.dock-divider{height:8px;background:#384c5e;color:#8e9dac;line-height:3px;text-align:center;letter-spacing:3px;font-size:13px}.props-panel{display:flex;flex-direction:column;min-height:0;flex:1}.property-tabs{display:flex;padding:2px 6px 0;border-bottom:1px solid #42566a;flex-shrink:0}.property-tabs button{border:0;border-radius:0;padding:9px 9px;font-size:11px;background:transparent;color:#aebdcd}.property-tabs button.active{border-bottom:2px solid #69d5ff;color:#fff;background:#273a4a}.property-tabs button:disabled{opacity:.4;padding-left:6px;padding-right:6px}#props{overflow:auto;padding:10px 8px;min-height:0}fieldset{border:1px solid #42576b;border-radius:5px;padding:20px 12px 25px;margin:0;min-width:0}legend{font-size:12px;font-weight:600;padding:0 7px}#empty{color:#7c94a8;font-size:10px;padding:7px 10px 0}#props label{display:flex;align-items:center;gap:12px;justify-content:space-between;font-size:11px;margin:12px 0}#props input:not([type=range]):not([type=color]){background:#263746;color:#cfdeea;border:1px solid #405870;border-radius:3px;padding:6px 7px;height:27px;min-width:0;width:75%;font:11px "Segoe UI",sans-serif}#props input:disabled{opacity:.5}#props h4{font-size:11px;margin:20px 0 7px;font-weight:600}.xyz{display:flex;flex-direction:column}.xyz label{margin:5px 0!important;justify-content:flex-end!important;color:#b6c8d8}.xyz label>input{margin-left:16px}#props input[type=range]{width:65%;accent-color:#69d5ff;height:10px}#props input[type=color]{width:51px;height:25px;border:0;background:none;margin-right:auto;margin-left:12px}.material-hint{font-size:10px;color:#879db0;line-height:1.8;margin-top:25px}.snap-dock{min-height:54px;background:#202d39;border-top:1px solid #3c4c5c;margin-top:5px;flex-shrink:0}.snap-title{font-size:11px;padding:5px 9px}.snap-options{display:flex;align-items:center;gap:17px;padding:4px 12px 6px;font-size:11px}.snap-options strong{font-size:11px;color:#69d5ff;margin-right:5px}.snap-options label{display:flex;align-items:center;gap:5px;white-space:nowrap}.snap-options input{appearance:none;width:15px;height:15px;border:1px solid #506981;background:#1c2936;margin:0;border-radius:0;cursor:pointer}.snap-options input:checked{background:#155671;border-color:#69d5ff;box-shadow:inset 0 0 0 2px #203644}footer{height:29px;min-height:29px;border-top:1px solid #3b5064;display:flex;align-items:center;justify-content:space-between;padding:0 10px;background:#1e2b36;color:#a4b9cb;font-size:10px}footer>div{display:flex;align-items:center;gap:6px}footer button{padding:2px 11px;font-size:10px;background:#21313e;border-radius:4px}footer button.active{background:#325d2b;border-color:#528646}#camera-indicator.active{background:#315a28}.units{color:#e3ebf3;font-weight:600;margin-right:12px}#coords{font-size:9px;min-width:140px;text-align:right;color:#acc2d5}dialog{color:#dce6ef;background:#253542;border:1px solid #526d81;border-radius:8px;width:520px;max-width:92vw;padding:0;box-shadow:0 20px 70px #0008}dialog::backdrop{background:#0b1420a0}.dialog-heading{display:flex;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid #3f5367}.dialog-heading img{width:33px;height:33px}.dialog-heading b{font-size:17px}.dialog-heading small{display:block;color:#8dabbc;font-size:10px;margin-top:4px}.dialog-heading button{margin-left:auto;background:transparent;font-size:20px;border:0}.help-content{padding:10px 24px 22px;line-height:1.8}.help-content h3{font-size:15px}.help-content dl{display:grid;grid-template-columns:100px 1fr;direction:ltr;gap:8px;font-size:11px}.help-content dd{margin:0;direction:rtl}.help-content dt{color:#69d5ff}.scope-note{font-size:11px;color:#9bafbd;border-top:1px solid #465868;padding-top:12px}@media(min-width:1600px){.tools{width:150px;min-width:150px}.tool-grid button{height:45px}.property-tabs button{padding:9px 12px}fieldset{padding-top:24px;padding-bottom:32px}}@media(max-width:1050px){.tools{width:110px;min-width:110px}.tool-grid{padding:5px 6px;gap:5px}.tool-grid button{height:39px}.tool-grid img{width:28px;height:28px}.properties{width:235px}.document-title{display:none}.property-tabs button{font-size:10px;padding:9px 6px}.property-tabs button:disabled:last-child{display:none}.save-state{display:none}#tool-status{max-width:240px;overflow:hidden;white-space:nowrap}.shortcuts-link{font-size:9px}.categories button{padding:3px 10px}}@media(max-width:720px){.properties{width:190px}.tools{width:80px;min-width:80px}.tool-grid{grid-template-columns:1fr}.tool-help,.shortcuts-link,.web-tag,.about,.toolbar i,.toolbar .icon-button:disabled{display:none}.menubar{padding:0 3px}.menubar summary{padding:5px 7px}.categories button{font-size:9px;padding:4px 7px}.toolbar{padding:2px;gap:2px}.icon-button{width:28px;height:28px}.icon-button img{width:21px;height:21px}.snap-options{gap:9px;font-size:10px;padding-left:7px}.snap-options strong{display:none}.property-tabs button{padding:8px 7px}.property-tabs button:disabled{display:none}.scene-columns{grid-template-columns:1fr 38px 30px}.scene-row{grid-template-columns:1fr 38px 30px}.scene-columns span{font-size:9px;padding:5px 2px}fieldset{padding:10px 7px}#tool-status{display:none}footer>div{width:100%;justify-content:flex-end}.units{margin-right:auto}.toolbox-title{font-size:10px;padding:7px 4px}}@media(max-width:480px){.properties{display:none}.categories button:disabled{display:none}.toolbar-right{display:none}.snap-options{gap:7px}.snap-options label{gap:3px}.menubar summary{font-size:11px}.axis-widget{width:45px;height:45px;left:6px;bottom:8px}}
#props h4{margin-top:12px}.xyz label{margin:4px 0!important}#props .name-row{margin:8px 0}#props fieldset{padding-top:12px;padding-bottom:20px}.property-tabs button{white-space:nowrap}.tool-help{opacity:.65}

#metadata{width:100%;resize:vertical;background:#17222c;color:#dce6ef;border:1px solid #43586b;padding:8px;font:11px monospace}#apply-metadata{margin-top:8px;padding:7px}.tools{overflow-y:auto}

#operation-form{padding:22px;display:grid;gap:14px}#operation-form label{display:grid;grid-template-columns:1fr 120px;gap:14px;align-items:center}#operation-form input,#operation-form select{width:100%;padding:8px;background:#17222c;color:#dce6ef;border:1px solid #43586b}#operation-form button{padding:8px 20px;margin-right:8px}#cancel-compute{position:fixed;bottom:60px;left:45%;z-index:99;background:#28546d;padding:12px}

.texture-controls{display:grid;gap:6px;margin-top:14px}.texture-controls button{padding:6px;text-align:left}

.selection-marquee{position:absolute;pointer-events:none;border:1px solid #65d6ff;background:#65d6ff18;z-index:30;}

/* Fixed-size CAD crosshair in every viewport, including selection mode. */
.view canvas{cursor:url("icons/cad-crosshair.svg") 12 12,crosshair;}

#operation-panel{padding:8px 0;border-bottom:1px solid #456074}#operation-panel form{display:flex;align-items:center;gap:10px;flex-wrap:wrap}#operation-panel strong{color:#69d5ff;font-size:11px;letter-spacing:.7px;margin-right:4px}#operation-panel label{display:flex;align-items:center;gap:6px;font-size:11px;color:#aebfce}#operation-panel input,#operation-panel select{width:84px;height:27px;background:#182632;border:1px solid #456074;border-radius:5px;color:#e1edf4;padding:3px 7px}#operation-panel select{width:108px}#operation-panel button{height:27px;padding:3px 12px}#operation-panel button[type=submit]{background:#176482;border-color:#3887a6}

/* Interface localization keeps engineering axes and numeric entry left-to-right. */
#language{height:25px;max-width:105px;padding:2px 7px;border:1px solid #435b6d;border-radius:4px;background:#182632;color:#d7e7f2;font:inherit;margin-left:auto}
html[lang=ar] body{font-family:Tahoma,Arial,sans-serif}
html[lang=ar] .menu,html[lang=ar] .tool-help,html[lang=ar] .properties,html[lang=ar] .help-content,html[lang=ar] #status,html[lang=ar] #tool-status{direction:rtl;text-align:right}
html[lang=ar] .menu button{direction:rtl;text-align:right}
html[lang=ar] .menu kbd{direction:ltr;float:left;margin-left:0;margin-right:18px}
html[lang=ar] .property-tabs{direction:rtl}
html[lang=ar] input[type=number],html[lang=ar] .xyz input,html[lang=ar] textarea,html[lang=ar] #coords,html[lang=ar] .xyz{direction:ltr}
html[lang=ar] #command{direction:rtl;text-align:right}
html[lang=ar] .help-content dl{direction:rtl}
html[lang=ar] #operation-panel form{direction:rtl}
html[lang=ar] #operation-panel input{direction:ltr}
html[lang=ar] .scene-row{direction:ltr}
html[lang=ar] .scene-columns{direction:ltr}
html[lang=ar] .document-title{letter-spacing:0}

.layer-actions{display:flex;flex-wrap:wrap;gap:4px;margin:6px 0}.layer-actions button{padding:5px 7px;font-size:11px}.layer-table{margin:8px -4px}.layer-row{display:grid;grid-template-columns:24px minmax(55px,1fr) 32px 30px 38px;gap:3px;padding:4px 0;align-items:center}.layer-row.selected{background:#176080}.layer-row input{min-width:0;width:100%;height:25px;padding:3px}.layer-row button{padding:3px;min-width:0}.layer-row input[type=color]{padding:1px}.layer-head{font-size:9px;overflow-wrap:anywhere}.layer-head span{min-width:0}#bim-json{direction:ltr;text-align:left;font:11px/1.5 Consolas,monospace}#bim-prompt,#bim-json{width:100%;box-sizing:border-box;background:#17222c;color:#dce6ef;border:1px solid #405267;border-radius:4px;padding:7px;resize:vertical}#bim-status{color:#69d5ff;overflow-wrap:anywhere}

#props #layer-manager input{width:100%;margin:0;min-width:0;padding:3px;height:25px}#props #layer-manager input[type=color]{width:28px;padding:0}#props .layer-row{grid-template-columns:22px minmax(40px,1fr) 25px 25px 28px;gap:2px}#props input#use-layer-color{width:14px;height:14px;margin:0}#props [data-property-panel=layer] label{display:flex;gap:6px;flex-wrap:wrap}.layer-table{margin:8px 0}
html[lang=ar] #bim-prompt{direction:rtl;text-align:right}

.furniture-library{width:min(930px,92vw);max-width:94vw;max-height:88vh;padding:0;border:1px solid #436073;border-radius:14px;background:#1b2934;color:#dfebf0;box-shadow:0 24px 90px #0009}.furniture-library::backdrop{background:#08131bcc;backdrop-filter:blur(3px)}.furniture-library header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;background:#233847;height:auto}.furniture-library h2{font-size:22px;margin:0 0 7px}.furniture-library p{margin:0;color:#a4bdca}.furniture-library .library-close{font-size:26px;background:none;border:0;color:#c9e2ed;cursor:pointer}.furniture-library nav{display:flex;gap:8px;padding:16px 24px 10px;flex-wrap:wrap}.furniture-library nav button{padding:8px 20px;border:1px solid #3e5868;border-radius:20px;background:#253743;color:#d7e6ed;cursor:pointer}.furniture-library nav button.active{background:#17758b;border-color:#5fd2e8;color:white}.library-search{display:block;width:calc(100% - 48px);box-sizing:border-box;margin:0 24px 16px;padding:11px;border:1px solid #3d5667;border-radius:7px;background:#15232d;color:white}.library-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px;padding:0 24px 24px;overflow:auto;max-height:53vh}.furniture-card{overflow:hidden;padding:0 0 14px;border:1px solid #375263;border-radius:10px;background:#253642;color:#dce9ef;cursor:pointer;text-align:start}.furniture-card:hover{border-color:#62d5ed;box-shadow:0 0 0 1px #62d5ed;transform:translateY(-2px)}.furniture-card img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover}.furniture-card strong{display:block;padding:10px 12px 0;font-size:13px;font-weight:500}.furniture-library footer{padding:13px 24px;border-top:1px solid #375263;color:#94b2c2;background:#1b2b36}

.furniture-library header small{display:block;color:#77d6c7;margin-top:8px}.furniture-library nav{gap:6px;padding-top:12px}.furniture-library nav button{font-size:11px;padding:6px 12px}.library-pagination{display:flex;align-items:center;justify-content:space-between;padding:0 24px 12px;gap:12px}.library-pagination button{border:1px solid #426174;border-radius:6px;padding:6px 12px;color:#d4e6ef;background:#293e4c;cursor:pointer}.library-pagination button:disabled{opacity:.35;cursor:default}.library-count{color:#95b9c9;font-size:12px}.furniture-card small{display:block;color:#8fb4c3;font-size:10px;padding:6px 12px 0}.library-grid{max-height:43vh}.furniture-library .library-search{margin-bottom:12px}.furniture-library .furniture-card img{background:#253642}

.furniture-library[open]{display:flex;flex-direction:column;overflow:hidden}.furniture-library header,.furniture-library nav,.furniture-library footer,.library-pagination,.library-search{flex-shrink:0}.furniture-library .library-grid{min-height:0;flex:1 1 auto}

.shell-tools button{height:68px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px}.shell-tools button img{height:34px}.shell-tools button span{font-size:9px;line-height:12px}.auto-furniture{border-top:1px solid #3b4856;margin-top:14px;padding-top:10px}.auto-furniture label{display:flex;flex-direction:column;gap:5px;margin:8px 0}.auto-furniture select,.auto-furniture input{width:100%;min-width:0}.auto-furniture button{width:100%;margin:4px 0}.auto-furniture button:disabled{opacity:.4;cursor:not-allowed}
#workspace{position:relative}

#import-dialog{width:min(650px,85vw);background:#20303d;color:#e6f2f9;border:1px solid #507086;border-radius:8px;padding:22px}#import-progress{width:100%;height:14px}#import-details{white-space:pre-wrap;overflow:auto;max-height:40vh;font:12px/1.6 Segoe UI,sans-serif}#import-dialog::backdrop{background:#07141baa}

.quick-extrude-handle{position:absolute;width:120px;height:120px;padding:0;border:0;background:transparent!important;z-index:8;pointer-events:none;overflow:visible;touch-action:none;}
.quick-extrude-handle[hidden]{display:none!important;}
.quick-extrude-handle svg{overflow:visible;pointer-events:none;}
.quick-extrude-shaft{fill:none;stroke:#ce9bff;stroke-width:5;pointer-events:stroke;cursor:ns-resize;}
.quick-extrude-tip{fill:#ce9bff;stroke:#482766;stroke-width:1;pointer-events:all;cursor:ns-resize;}
.quick-extrude-handle:hover .quick-extrude-tip{fill:#efdaff;}

.quick-extrude-handle.surface-snapped .quick-extrude-shaft{stroke:#66ffd0}.quick-extrude-handle.surface-snapped .quick-extrude-tip{fill:#66ffd0}
#drawing-input{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:9px 10px;border:1px solid #4d91ad;border-radius:7px;background:#1c3342;margin:4px 0}#drawing-input[hidden]{display:none}#drawing-input strong{color:#72dcec}#drawing-input small{color:#abc2d0;font-size:11px}.drawing-fields{display:flex;gap:9px;direction:ltr}.drawing-fields label{display:flex;align-items:center;gap:5px;font-weight:600}.drawing-fields input{width:90px;padding:6px;background:#122532;color:white;border:1px solid #597588;border-radius:4px}.drawing-fields input:focus{outline:2px solid #5ed2ee}#drawing-input.invalid input{border-color:#ed8b78}#drawing-input button{margin-inline-start:auto}#new-design-dialog{width:min(650px,92vw);padding:0;border:1px solid #55788c;border-radius:16px;background:#1c2d3a;color:#e5eff7;box-shadow:0 25px 90px #0009}#new-design-dialog::backdrop{background:#071019b8;backdrop-filter:blur(3px)}#new-design-dialog header{display:flex;align-items:center;gap:16px;padding:27px;background:linear-gradient(120deg,#223e50,#172a38)}#new-design-dialog h2{font-size:25px;margin:0 0 6px}#new-design-dialog p{color:#b4c9d7;line-height:1.6;margin:0}.new-design-icon{font-size:48px;color:#61d8ed}.new-close{margin-inline-start:auto;align-self:flex-start}#new-design-dialog section{padding:25px}#new-design-dialog h3{margin:0 0 15px}.new-layouts{display:grid;grid-template-columns:1fr 1fr;gap:15px}.new-layouts label{position:relative;padding:18px;border:1px solid #526b7d;border-radius:10px;display:grid;gap:8px;cursor:pointer}.new-layouts label:has(input:checked){border-color:#65d9ef;background:#23495c;box-shadow:inset 0 0 0 1px #65d9ef}.new-layouts input{position:absolute;right:14px;top:14px}.layout-quad{font-size:38px;color:#89d6ed}.new-layouts small{color:#b4cad8}.new-grid{display:flex;gap:8px;margin:20px 0}.new-current{padding:18px;border-radius:8px;background:#263d4c}.new-current[hidden]{display:none}.new-current p{margin:8px 0 13px!important}.new-current [role=status]{margin-inline-start:12px;color:#80ded3}#new-design-dialog footer{padding:18px 25px;display:flex;justify-content:flex-end;gap:10px;background:#152633}#new-design-dialog button{padding:9px 15px;border-radius:6px}#new-design-dialog .primary{background:#087d9d;border-color:#4ad2f0;color:#fff}html[lang=ar] #new-design-dialog{direction:rtl}html[lang=ar] #drawing-input{direction:rtl}@media(max-width:600px){.new-layouts{grid-template-columns:1fr}.drawing-fields input{width:65px}#drawing-input small{display:none}}

#snapmark[data-kind]{width:12px;height:12px;border:2px solid #78ffb1;box-shadow:0 0 3px #10231f;background:transparent}
#snapmark[data-kind="center"],#snapmark[data-kind="near"]{border-radius:50%}
#snapmark[data-kind="mid"]{clip-path:polygon(50% 0,100% 100%,0 100%);background:#78ffb1}
#snapmark[data-kind="intersection"]{border-radius:0;transform:translate(-50%,-50%) rotate(45deg)}
#snapmark[data-label]::after{content:attr(data-label);position:absolute;left:16px;top:10px;white-space:nowrap;color:#78ffb1;font:600 12px "Segoe UI",Tahoma,sans-serif;text-shadow:0 1px 3px #000,0 -1px 3px #000}
#snapmark[data-kind="mid"]{clip-path:none;background:transparent;border-width:0 2px 2px;transform:translate(-50%,-50%)}

#snapmark[data-kind="mid"]{border:0;box-shadow:none}
#snapmark[data-kind="mid"]::before{content:"";position:absolute;inset:0;background:#78ffb1;clip-path:polygon(50% 0,100% 100%,0 100%,50% 0,50% 30%,24% 80%,76% 80%,50% 30%)}
#snapmark[data-kind="intersection"]{transform:translate(-50%,-50%);border:0;box-shadow:none}
#snapmark[data-kind="intersection"]::before{content:"×";position:absolute;inset:-5px;color:#78ffb1;font:bold 22px Arial}

#quick-depth-input{display:flex;align-items:center;gap:14px;padding:9px;border:1px solid #a793d8;border-radius:6px;margin-bottom:5px}#quick-depth-input[hidden]{display:none}#quick-depth-input input{width:120px}#quick-depth-input small{color:#bfd1df}

#screencast-overlay{position:fixed;right:370px;bottom:150px;z-index:10000;display:flex;flex-direction:column;align-items:flex-end;gap:7px;pointer-events:none}#screencast-overlay[hidden]{display:none}#screencast-overlay kbd{font:600 18px system-ui;color:#fff;background:#10212bea;border:1px solid #77d9fc77;border-radius:8px;padding:9px 15px;box-shadow:0 3px 14px #0005;animation:key-in .12s ease-out}@keyframes key-in{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}@media(max-width:900px){#screencast-overlay{right:20px;bottom:150px}}

.screencast-mouse{position:fixed;right:370px;bottom:75px;z-index:10000;pointer-events:none;filter:drop-shadow(0 2px 4px #0008)}.screencast-mouse[hidden]{display:none}.screencast-mouse svg{fill:#152630;stroke:#b6d8e8;stroke-width:2}.screencast-mouse [data-button]{fill:#263f50}.screencast-mouse .pressed{fill:#55dcc7;stroke:white}.screencast-mouse .wheel-up,.screencast-mouse .wheel-down{fill:none;stroke:#67828f;opacity:.35}.screencast-mouse .scrolling{stroke:#55dcc7;opacity:1;stroke-width:4}@media(max-width:900px){.screencast-mouse{right:20px}}

.screencast-mouse{bottom:190px}#screencast-overlay{right:430px}@media(max-width:900px){#screencast-overlay{right:80px}}


#section-panel{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:10px;border:1px solid #d4ad60;border-radius:6px;background:#223442}#section-panel[hidden]{display:none}#section-panel label{display:flex;align-items:center;gap:5px}#section-panel input[type=number]{width:90px}#section-panel input[type=range]{width:180px;accent-color:#ffd078}#section-panel small{width:100%;color:#b6cddd}

/* Stable bottom measurement dock alongside snapping controls. */
.snap-dock{display:flex;align-items:stretch;gap:12px;margin-top:0;padding:5px 10px;min-height:58px}
.snap-controls{flex:0 1 auto;align-self:center;min-width:0}.snap-title{display:none}.snap-options{padding:5px 0;gap:10px;flex-wrap:wrap}
#input-dock{flex:1 1 520px;min-width:0;min-height:46px;border-inline-start:1px solid #456074;padding-inline-start:12px;display:flex;align-items:center;gap:8px}
#input-dock #drawing-input,#input-dock #quick-depth-input,#input-dock #operation-panel{width:100%;margin:0;padding:6px 8px;border:0;border-radius:5px;background:#1c3342;min-height:42px;gap:8px}
#input-dock #drawing-input,#input-dock #quick-depth-input,#input-dock #operation-panel form{flex-wrap:wrap}
#input-dock .drawing-fields{gap:7px;flex-wrap:wrap}#input-dock .drawing-fields input{width:78px;padding:5px}
#input-dock small{font-size:10px;flex:1 1 160px}#input-dock button{white-space:nowrap;padding:5px 9px}#input-dock strong{font-size:11px}
@media(max-width:1200px){.snap-dock{flex-wrap:wrap;gap:3px}.snap-controls{flex-basis:100%}#input-dock{flex-basis:100%;border-inline-start:0;padding-inline-start:0}.snap-options{padding:1px 0}}
@media(max-width:600px){#input-dock small{display:none}#input-dock .drawing-fields input{width:60px}.snap-dock{padding:4px 6px}.snap-options{gap:7px}}

@media(min-width:1201px) and (max-width:1600px){#input-dock small{display:none}}

/* Grouped CAD tool palettes and editable feature properties. */
.tool-groups[hidden]{display:none}.tool-section h3{font-size:10px;text-transform:uppercase;letter-spacing:.08em;color:#90afc2;margin:13px 12px 3px}.tool-section .tool-grid{padding-top:5px;padding-bottom:5px}.tool-section .tool-grid button{min-height:66px}.tool-section .tool-grid span{font-size:10px;line-height:1.25}.tool-section+.tool-section{border-top:1px solid #395161}.property-tabs{flex-wrap:wrap}.property-tabs button{padding:8px 7px}#modifier-properties label,#physics-properties label{display:flex;justify-content:space-between;align-items:center;gap:8px;margin:9px 0;text-transform:capitalize}#modifier-properties input,#physics-properties input,#physics-properties select{width:112px;min-width:0}#physics-properties input[type=checkbox]{width:auto}#modifier-properties p,#physics-properties p{color:#aec6d5;line-height:1.55;font-size:11px}#modifier-properties button,#physics-properties button{margin:5px 3px;padding:6px 8px}#physics-playback{padding:10px;display:flex;gap:5px;flex-wrap:wrap}#physics-playback small{flex-basis:100%;font-size:10px;color:#a8cbd6;line-height:1.5}.physics-note{border-top:1px solid #496071;padding-top:10px}

#physics-playback{flex:0 0 auto;align-self:center;margin-inline-start:auto;padding:0 4px;display:flex;flex-wrap:wrap;justify-content:flex-end;gap:5px;max-width:300px}#physics-playback small{flex-basis:100%;text-align:end;line-height:1.1}#physics-playback button{padding:6px 12px;white-space:nowrap}#physics-properties h4{color:#69d5ff;margin:4px 0 10px}

/* Contextual Z drawer sits inside the viewport, beside the toolbox. */
#quick-settings-toggle{position:absolute;left:2px;top:38px;z-index:35;width:23px;height:35px;padding:0;font-size:23px;background:#243947;border:1px solid #527587;border-radius:0 5px 5px 0}
#quick-settings{position:absolute;left:28px;top:36px;bottom:16px;width:min(320px,calc(100% - 40px));z-index:34;background:#213341f5;border:1px solid #527587;border-radius:7px;box-shadow:0 8px 28px #0006;display:flex;flex-direction:column;text-align:start}
#quick-settings[hidden],#quick-settings-toggle[hidden]{display:none}
#quick-settings header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px;border-bottom:1px solid #456173}
#quick-settings header button{font-size:19px;padding:0 8px}
.quick-settings-content{padding:12px;overflow:auto;overscroll-behavior:contain}
.quick-settings-content p{font-size:12px;line-height:1.6;color:#b1cad8}
.quick-settings-content h4{margin:12px 0 8px;color:#75d9fc}
#physics-properties .physics-value-row{display:grid;grid-template-columns:1fr 90px;align-items:center;gap:5px;margin:10px 0}
#physics-properties .physics-value-row input[type=number]{width:90px;min-width:0}
#physics-properties .physics-slider{grid-column:1/-1;width:100%;margin:2px 0;cursor:ew-resize;accent-color:#56c7ec;direction:ltr}
#quick-settings #physics-properties>button{margin:8px 5px 4px 0;padding:7px}
.material-swatch{width:100%;height:52px;border-radius:3px;background-size:64px}
#quick-settings input[type=number]{background:#2b4354;border:1px solid #567286;border-radius:4px;color:#e3f0f8;padding:6px;font:inherit}
#quick-settings input[type=checkbox]{accent-color:#56c7ec}

/* Compact contextual editors; no duplicate physics editor in Properties. */
#quick-settings{width:min(260px,calc(100% - 40px));bottom:auto;max-height:calc(100% - 52px)}
#quick-settings header{padding:7px 9px;font-size:12px}
.quick-settings-content{padding:8px 10px;min-height:0}
#quick-settings #physics-properties h4{font-size:12px;margin:0 0 5px}
#quick-settings #physics-properties p{font-size:10px;line-height:1.4;margin:5px 0}
#quick-settings #physics-properties .physics-value-row{grid-template-columns:1fr 66px;gap:2px;margin:6px 0;font-size:11px}
#quick-settings #physics-properties input[type=number]{width:66px;padding:3px 4px;font-size:11px}
#quick-settings #physics-properties label{font-size:11px;margin:6px 0}
#quick-settings #physics-properties .physics-slider{height:13px;margin:0}
#quick-settings #physics-properties>button{font-size:10px;padding:5px;margin:5px 3px 2px 0}
#quick-settings .physics-note{padding-top:6px}
#quick-settings .material-swatch{height:36px}

/* Playback belongs to the Physics drawer, with three controls on one row. */
#quick-settings #physics-playback{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px;max-width:none;margin:8px 0 0;padding:8px 0 0;border-top:1px solid #496071;align-self:stretch}
#quick-settings #physics-playback[hidden]{display:none}
#quick-settings #physics-playback small{grid-column:1/-1;text-align:start;font-size:10px}
#quick-settings #physics-playback button{min-width:0;margin:0;padding:6px 2px;font-size:10px;white-space:nowrap}