:root{color-scheme:dark;--ink:#eaf2fe;--muted:#8798b0;--line:#223041;--accent:#92eaff;--paper:#080b11;--panel:#0e141e}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif}header{height:90px;padding:18px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line)}small{font-size:9px;letter-spacing:1.7px;color:var(--muted)}h1{font-size:23px;font-weight:600;margin:5px 0 0}h2{font-size:14px;margin:0}h3{font-size:12px;margin:18px 0 8px}button,input{font:inherit;border:1px solid #304252;border-radius:5px;padding:8px 10px;color:var(--ink);background:#0b111b;max-width:100%}button{font-size:12px;cursor:pointer;background:var(--accent);border-color:var(--accent);color:#071822;min-height:35px}button:hover{filter:brightness(1.07)}button:disabled{opacity:.45;cursor:default}.secondary{background:#111c29;color:var(--ink);border-color:#304252}.danger{background:transparent;color:#ffaaa1;border-color:#634246}:focus-visible{outline:2px solid #92eaff;outline-offset:2px}.file-actions,.mode-actions,.history-actions,.object-actions,.primitive-actions{display:flex;gap:7px}.file-actions{flex-wrap:wrap}main{display:grid;grid-template-columns:245px minmax(0,1fr) 280px;height:calc(100dvh - 90px)}aside{background:var(--panel);padding:18px;overflow:auto}.left{border-right:1px solid var(--line)}.right{border-left:1px solid var(--line)}aside section+section{border-top:1px solid var(--line);padding-top:18px;margin-top:18px}.muted,.help p{color:var(--muted);font-size:11px;line-height:1.85;overflow-wrap:anywhere}.search{display:flex;gap:6px;margin:10px 0}.search input{min-width:0;width:100%;font-size:11px}.search button{padding:7px 10px;white-space:nowrap;flex-shrink:0}#search-results{display:grid;gap:8px;max-height:290px;overflow:auto}.asset-card{border:1px solid var(--line);border-radius:5px;padding:9px;background:#111c29}.asset-card strong{font-size:12px;display:block;line-height:1.5}.asset-card p{font-size:10px;line-height:1.65;margin:5px 0;color:var(--muted)}.asset-card div{display:flex;gap:6px;align-items:center;flex-wrap:wrap}.asset-card a{font-size:11px;color:var(--accent)}.asset-card button{font-size:11px;min-height:29px;padding:5px 7px}#more-results{width:100%;margin-top:10px}.primitive-actions{margin-top:12px}.primitive-actions button{flex:1;padding:6px}.heading{display:flex;justify-content:space-between;align-items:center}.heading span{font-size:10px;color:var(--muted)}.host-label{font-size:12px;margin:14px 0 8px;color:var(--muted)}.host-label small{letter-spacing:0;margin-left:10px}#object-list{display:grid;gap:6px}#object-list button{width:100%;text-align:left;background:#111c29;color:var(--ink);border-color:var(--line);font-size:11px;overflow-wrap:anywhere;padding:8px}#object-list button[aria-pressed=true]{background:var(--accent);color:#071822}#object-list details{font-size:10px;color:var(--muted);padding:5px 8px}#object-list summary{cursor:pointer}#object-list ul{margin:7px 0 0;padding-left:15px;line-height:1.9}.stage{position:relative;min-width:0;min-height:380px;overflow:hidden}#view{display:block;width:100%;height:100%;touch-action:none}.stage-toolbar{position:absolute;z-index:2;top:15px;left:15px;right:15px;display:flex;gap:8px;flex-wrap:wrap;pointer-events:none}.stage-toolbar>*{pointer-events:auto}.mode-actions{background:#0e141eee;padding:4px;border-radius:7px;box-shadow:0 2px 14px #00000033}.mode-actions button{background:transparent;color:var(--muted);border-color:transparent;padding:6px 8px}.mode-actions button[aria-pressed=true]{background:var(--accent);color:#071822}.history-actions{align-items:center}.stage-caption{position:absolute;bottom:17px;left:15px;right:15px;display:flex;gap:8px;justify-content:space-between;font-size:10px;pointer-events:none;color:#8798b0}.stage-caption span{padding:5px 7px;background:#0e141edb;border-radius:4px}.right label{display:block;font-size:11px;margin-top:12px}.right label input:not([type=checkbox]){width:100%;margin-top:6px;font-size:12px}.right label.check{display:flex;gap:7px;align-items:center}.right label.check input{margin:0}.object-actions button{flex:1}.vector-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.right .vector-fields label{font-size:10px;margin:0;color:var(--muted)}.vector-fields input{width:100%;padding:7px 5px}.right form>button{margin-top:12px;width:100%}#color{height:36px;padding:3px}#status{font-size:12px;line-height:1.8;padding:10px;background:#111c29;border-left:3px solid #92eaff;overflow-wrap:anywhere}#status[data-error=true]{border-color:#ffaaa1;color:#ffb4a9}*[hidden]{display:none!important}@media(max-width:1100px){main{grid-template-columns:205px minmax(0,1fr) 245px}header{padding:16px}h1{font-size:20px}aside{padding:14px}.brand small{letter-spacing:1px}}@media(max-width:800px){header{height:auto;min-height:115px;align-items:flex-start;flex-direction:column;padding:15px;gap:12px}.file-actions button{font-size:11px;padding:7px 9px}main{display:flex;height:auto;flex-direction:column}.stage{order:0;height:55vh;min-height:380px}.left{order:1;border:0;border-top:1px solid var(--line)}.right{order:2;border:0;border-top:1px solid var(--line)}aside{overflow:visible;padding:18px}.stage-toolbar{left:10px;right:10px;top:10px;gap:5px}.stage-caption{font-size:9px}#stats{display:none}.left .help{display:none}#object-list{max-height:280px;overflow:auto}#search-results{max-height:240px}}

header{background:#0a0e15}.brand small{color:var(--accent)}input::placeholder{color:#8798b0}input[type=checkbox]{accent-color:var(--accent)}.stage{background:#0b111b}button{font-weight:550}.stage-toolbar .secondary{background:#101b29e8}#status{min-height:44px}

select{width:100%;background:#101b29;color:#eaf2fe;border:1px solid #334358;border-radius:5px;padding:8px}#parameters-form{border-bottom:1px solid #223041;padding-bottom:16px;margin-bottom:16px}#project-report pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:11px}#parameter-fields label{margin-top:10px}

/* Fixed viewport workspace: only property/library panels scroll. */
html,body{width:100%;height:100%;overflow:hidden}body{height:100dvh;display:flex;flex-direction:column}header{flex:none;height:72px;padding:12px 18px}h1{font-size:20px}main{flex:1;min-height:0;height:auto;overflow:hidden}aside{min-height:0;overscroll-behavior:contain}.stage{min-height:0;height:auto}
@media(max-width:800px){header{height:98px;min-height:0;padding:9px 12px;gap:5px}h1{font-size:17px}main{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:minmax(140px,1fr) minmax(0,38%);height:auto;min-height:0}.stage{grid-column:1/-1;grid-row:1;height:auto;min-height:0;order:0}.left,.right{grid-row:2;min-width:0;padding:10px;overflow:auto;order:0}.left{grid-column:1}.right{grid-column:2}.stage-toolbar{gap:4px;top:8px}.stage-toolbar button{font-size:10px;padding:5px;min-height:30px}.stage-caption{bottom:8px}aside .help{display:none}}

/* Thumbnail library: actions remain visible for mouse, keyboard and touch. */
#search-results{max-height:430px;gap:12px}.asset-card{padding:0;overflow:hidden}.asset-card .asset-cover{display:block;position:relative;aspect-ratio:16/10;background:radial-gradient(ellipse at 50% 30%,#283e50,#111c29);overflow:hidden}.asset-cover img{width:100%;height:100%;display:block;object-fit:cover}.asset-cover-placeholder{position:absolute;inset:0;display:grid;place-items:center;color:var(--muted);font-size:12px}.asset-card .asset-load{position:absolute;right:9px;bottom:9px;min-width:62px;min-height:32px;box-shadow:0 2px 12px #0008}.asset-card .asset-meta{display:block;padding:10px}.asset-card strong{overflow-wrap:anywhere}.asset-card .asset-meta-actions{display:flex;justify-content:space-between;margin-top:8px}.asset-card .asset-options{display:block;margin-top:10px;padding-top:10px;border-top:1px solid var(--line)}.asset-options label{display:block;font-size:11px;color:var(--muted)}.asset-options select{width:100%;margin-top:5px;min-height:32px;background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:5px;padding:5px}.asset-card .asset-files{display:grid;gap:6px;font-size:11px;color:var(--muted)}.asset-files button{width:100%;text-align:left}@media(max-width:800px){#search-results{max-height:310px}}

.stage-caption>span:first-child{white-space:nowrap;overflow-x:auto;max-width:100%;pointer-events:auto}.stage-caption #stats{flex-shrink:0}@media(max-width:1100px){.stage-caption #stats{display:none}}

#autosave-status{font-size:11px;color:var(--muted);align-self:center;max-width:220px}@media(max-width:800px){#autosave-status{width:100%;font-size:10px}}
@media(max-width:800px){header{height:125px}}

.cloud-strip{display:flex;gap:12px;align-items:center;justify-content:space-between;padding:4px 18px;border-bottom:1px solid var(--line);font-size:11px;min-height:36px;flex:none}.cloud-strip button{font-size:10px;min-height:26px;padding:3px 7px}#cloud-status{overflow-wrap:anywhere;color:var(--muted)}#cloud-dialog{width:min(740px,94vw);max-height:85dvh;background:var(--panel);color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:20px}#cloud-dialog::backdrop{background:#000a}.cloud-heading{display:flex;gap:8px;align-items:center}.cloud-heading h2{flex:1}#cloud-usage{font-size:12px;color:var(--muted)}.cloud-row{padding:15px 0;border-top:1px solid var(--line)}.cloud-row p{font-size:11px;color:var(--muted)}.cloud-row>div{display:flex;flex-wrap:wrap;gap:8px}.cloud-row select{width:auto;max-width:100%;font-size:11px}@media(max-width:800px){header{height:165px}.cloud-strip{padding:4px 10px}}
/* Compact application shell. The website header remains in the host page. */
.app-header{height:52px;min-height:52px;padding:0 18px;display:flex;flex-direction:row;gap:24px;align-items:center;background:#10151e;position:relative;z-index:10}.app-title{display:flex;gap:8px;align-items:baseline;white-space:nowrap}.app-title h1{font-size:14px;margin:0;letter-spacing:.3px;font-weight:600}.app-title small{font-size:9px;letter-spacing:0;color:#697b92}.app-header .file-actions{margin-left:auto;gap:8px;flex-wrap:nowrap}.app-header .file-actions button{font-size:11px;min-height:30px;padding:5px 12px}.app-menus{display:flex;align-items:center;gap:4px}.app-menu{position:relative}.app-menu summary{font-size:12px;cursor:pointer;list-style:none;padding:8px 12px;border-radius:5px;color:#b7c4d7}.app-menu summary::-webkit-details-marker{display:none}.app-menu summary span{margin-left:8px;color:#697b92}.app-menu[open]>summary,.app-menu summary:hover{background:#202b3a;color:var(--ink)}.menu-panel{position:absolute;top:calc(100% + 9px);left:0;width:220px;background:#141e2b;border:1px solid #2a394c;border-radius:8px;padding:6px;box-shadow:0 12px 36px #0007;display:grid;gap:3px;z-index:30}.menu-panel button{display:flex;justify-content:space-between;align-items:center;width:100%;padding:9px 10px;background:transparent;border:0;color:var(--ink);text-align:left;font-size:12px;min-height:34px}.menu-panel button:hover{background:#25384a}.menu-panel small{letter-spacing:0;font-size:10px;color:var(--muted)}.menu-panel hr{width:100%;border:0;border-top:1px solid var(--line);margin:4px 0}.menu-panel .check{display:flex;align-items:center;gap:8px;padding:7px 10px;margin:0;font-size:11px;color:var(--muted)}
main{grid-template-columns:240px minmax(0,1fr) 270px}aside{padding:16px;background:#101620}h2{font-size:12px;font-weight:600;color:#bccbdd;letter-spacing:.3px}h3{font-size:11px;font-weight:500;color:#8ea2ba;margin-top:18px}aside section+section{margin-top:20px;padding-top:20px}.left section:first-child{position:relative}.connection-state{position:absolute;right:0;top:1px;font-size:9px;color:#8095ab}.search{margin:14px 0 10px}.search input{font-size:11px;min-height:33px}.search button{font-size:10px;min-height:33px}.primitive-actions{gap:5px}.primitive-actions button{font-size:11px}.host-label{font-size:10px;color:#61788e;margin:12px 0}.heading span{font-size:9px}.source-info{font-size:10px;color:#71849c;margin:8px 0 12px}.source-info summary{cursor:pointer}.source-info p{font-size:9px}.right label{font-size:10px;color:#9dafc4}.right input{border-color:#273548;background:#0c121b}.right label input:not([type=checkbox]){font-size:11px;padding:8px}.object-actions{margin-top:12px}.object-actions button{font-size:10px;min-height:30px}#parameters-form{margin-top:18px;padding-bottom:18px}#parameters-form h3{margin-top:0;color:#c3d1e3}.right form>button{font-size:10px;min-height:30px}.right .check{font-size:10px}.report-section{border:0!important;margin:0!important;padding:0!important}.stage-toolbar{top:14px;left:14px;right:auto;gap:6px;align-items:center}.mode-actions,.history-actions{gap:3px;padding:3px;border:1px solid #2a3849;border-radius:7px;background:#111a26ed;box-shadow:0 3px 10px #0002}.stage-toolbar button,.stage-toolbar .mode-actions button{display:grid;place-items:center;padding:7px;width:34px;height:34px;min-height:34px;border:0;border-radius:4px;background:transparent;color:#839ab4}.stage-toolbar #home-view{background:#111a26ed;border:1px solid #2a3849;border-radius:7px;height:42px;width:42px}.stage-toolbar svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round}.mode-actions button[aria-pressed=true]{background:#91def0!important;color:#09202a!important}.stage-toolbar button:hover{background:#243649}.stage-toolbar button:disabled{opacity:.28}.stage-caption{bottom:10px;left:12px;right:12px;font-size:9px}.stage-caption span{background:#101723c9;color:#73879e;padding:5px 7px}.app-status{height:28px;min-height:28px;padding:0 16px;display:flex;gap:10px;align-items:center;background:#10151e;border-top:1px solid var(--line);font-size:10px;color:#71849c;flex:none}.app-status #autosave-status,.app-status #cloud-status{font-size:10px;white-space:nowrap;text-overflow:ellipsis;overflow:hidden;width:auto;max-width:50%;align-self:auto}.status-divider{color:#374b60}#status{position:fixed;right:286px;bottom:42px;max-width:420px;max-height:40vh;overflow:auto;z-index:40;margin:0;background:#22222c;box-shadow:0 8px 24px #0005;border-radius:6px;font-size:12px}#status:not([data-error=true]){display:none}#empty-selection{padding-top:14px;font-size:11px}#search-results{max-height:38vh}.asset-card .asset-meta{padding:9px}.asset-card strong{font-size:11px}
@media(max-width:1100px){main{grid-template-columns:210px minmax(0,1fr) 240px}aside{padding:13px}.app-header{gap:14px;padding:0 12px}#status{right:254px}}
@media(max-width:800px){.app-header{height:86px;min-height:86px;display:grid;grid-template-columns:1fr auto;gap:2px 8px;padding:8px 10px}.app-title h1{font-size:13px}.app-title small{font-size:8px}.app-menus{grid-row:2;grid-column:1}.app-header .file-actions{grid-row:1/3;grid-column:2;display:grid;gap:4px}.app-header .file-actions button{min-height:29px;padding:4px 9px;font-size:10px}.app-menu summary{padding:6px 9px;font-size:11px}.menu-panel{top:100%;width:205px}main{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:minmax(140px,1fr) minmax(0,38%)}.stage-toolbar{top:10px;left:10px}.stage-toolbar button,.stage-toolbar .mode-actions button{width:30px;height:30px;min-height:30px;padding:6px}.stage-toolbar #home-view{width:38px;height:38px}.app-status{padding:0 10px;gap:5px}.app-status #autosave-status,.app-status #cloud-status{font-size:9px}.right,.left{padding:10px}#status{left:10px;right:10px;bottom:36px;max-width:none}.connection-state{display:none}.stage-caption{font-size:8px}}

.app-status [data-warning=true]{color:#f2b98d!important}
#context-menu{position:fixed;z-index:150;min-width:210px;padding:5px;background:#15202d;border:1px solid #324457;border-radius:8px;box-shadow:0 12px 32px #0008}#context-menu button{display:flex;justify-content:space-between;gap:24px;width:100%;padding:8px 10px;border:0;background:transparent;color:var(--ink);font-size:12px;text-align:left}#context-menu button:hover,#context-menu button:focus{background:#284153}#context-menu button span{color:var(--muted);font-size:10px}#context-menu button:disabled{opacity:.3}

.building-presets{display:grid;gap:10px;margin-top:12px}.building-preset{overflow:hidden;border:1px solid var(--line);border-radius:7px;background:#111c29}.building-preset img{display:block;width:100%;aspect-ratio:1.6;object-fit:cover;object-position:70% 55%}.building-preset>div{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px}.building-preset strong{font-size:11px}.building-preset button{min-height:28px;font-size:11px;padding:4px 10px}

#building-tools label{display:block;font-size:11px;margin-top:10px}#building-tools select{width:100%;margin-top:5px}#building-done,#edit-building{width:100%;margin-top:12px}.building-brush{display:flex;gap:5px;margin-top:10px}.building-brush button{flex:1;padding:5px;font-size:11px;background:#142332;color:var(--ink)}.building-brush button[aria-pressed=true]{background:var(--accent);color:#071822}#building-count{font-size:11px;color:var(--muted)}

.building-brush{flex-wrap:wrap}.building-brush button{min-width:40%}#building-apply-module,#building-remove-module{width:100%;margin:5px 0}

.building-color-label{font-size:11px;margin-top:14px}#building-swatches{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px;margin:10px 0 14px}#building-swatches button{height:28px;min-height:28px;padding:0;border:2px solid transparent;border-radius:5px;box-shadow:0 0 0 1px #304252}#building-swatches button[aria-pressed=true]{border-color:#fff;box-shadow:0 0 0 2px #92eaff}#building-swatches button:focus-visible{outline:2px solid #92eaff;outline-offset:3px}

#weather{width:100%;margin-top:10px;padding:8px;color:var(--ink);background:#111c29;border:1px solid var(--line);border-radius:5px}