:root{--night:#161511;--panel:#1d1c18;--line:rgba(255,255,255,.12);--paper:#f4efe6;--muted:#a59d8e;--gold:#b8925a;--gold-soft:#d9bd8c;--blue:#2f6fdc;--font:Jost,"Helvetica Neue",Arial,sans-serif;--serif:"Cormorant Garamond",Georgia,serif}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--night);color:var(--paper);font:14px/1.5 var(--font)}
body{overflow:hidden}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
a{color:inherit;text-decoration:none}
code{font-size:12px;color:var(--gold-soft)}
[hidden]{display:none!important}
.eyebrow{margin:0;font-size:10px;font-weight:600;letter-spacing:.22em;color:var(--gold)}

.app{height:100%;display:grid;grid-template-rows:64px 1fr 32px}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 20px;border-bottom:1px solid var(--line);background:var(--night)}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;border:1px solid rgba(255,255,255,.45);font-family:var(--serif);font-size:16px}
.brand-copy{font-size:12px;letter-spacing:.16em}
.brand-copy small{display:block;font-size:9px;letter-spacing:.18em;opacity:.55}
.scene-tabs{display:flex;gap:2px;background:#0f0e0b;border:1px solid var(--line);padding:3px}
.scene-tabs button{padding:7px 14px;font-size:12px;letter-spacing:.04em;color:#cfc8ba;transition:background .2s,color .2s}
.scene-tabs button:hover{color:#fff}
.scene-tabs button.is-active{background:var(--paper);color:var(--night)}
.top-links{display:flex;gap:22px;font-size:12px;letter-spacing:.06em}
.top-links a{opacity:.8}.top-links a:hover{opacity:1;color:var(--gold-soft)}

.workspace{position:relative;display:grid;grid-template-columns:270px 1fr 320px;min-height:0}
.viewport{position:relative;grid-column:2;grid-row:1;overflow:hidden;background:#eef2f3}
.viewport canvas{display:block;width:100%;height:100%;touch-action:none}
.label-layer{position:absolute;inset:0;pointer-events:none}

.project-card{position:absolute;left:20px;top:18px;z-index:3;padding:16px 20px;background:rgba(22,21,17,.86);border:1px solid var(--line);backdrop-filter:blur(10px);pointer-events:none}
.project-card h1{margin:6px 0 8px;font:400 34px/.95 var(--serif)}
.project-card h1 em{color:var(--gold-soft)}
.project-meta{margin:0;font-size:11px;color:#cbc4b5;letter-spacing:.03em}
.style-bar{position:absolute;right:16px;top:18px;z-index:3;display:flex;background:rgba(22,21,17,.86);border:1px solid var(--line);padding:3px}
.style-bar button{padding:7px 12px;font-size:11px;letter-spacing:.06em;color:#cfc8ba}
.style-bar button.is-active{background:var(--gold);color:var(--night)}
.view-hint{position:absolute;left:50%;bottom:16px;z-index:3;transform:translateX(-50%);padding:7px 14px;background:rgba(22,21,17,.78);font-size:11px;letter-spacing:.04em;color:#ddd6c8;white-space:nowrap;pointer-events:none}
.loading{position:absolute;inset:0;z-index:5;display:flex;align-items:center;justify-content:center;gap:12px;background:rgba(22,21,17,.9);font-size:13px}
.loading.is-error .spinner{display:none}
.spinner{width:18px;height:18px;border:2px solid rgba(255,255,255,.25);border-top-color:var(--gold-soft);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.tag-room{padding:5px 9px;background:rgba(255,255,255,.92);border-left:3px solid var(--gold);color:#1d1c18;font-size:11px;line-height:1.3;white-space:nowrap;box-shadow:0 2px 10px rgba(0,0,0,.12)}
.tag-room b{display:block;font-weight:600}
.tag-room span{color:#6a6356;font-size:10px}
.tag-dim{padding:2px 7px;background:#1d1c18;color:#fff;font-size:10px;letter-spacing:.04em;white-space:nowrap}
.tag-ghost{background:#d9534f}

.panel{min-height:0;overflow:auto;background:var(--panel);border-color:var(--line);border-style:solid;border-width:0}
.panel-left{grid-column:1;border-right-width:1px}
.panel-right{grid-column:3;border-left-width:1px;display:flex;flex-direction:column}
.panel::-webkit-scrollbar{width:6px}.panel::-webkit-scrollbar-thumb{background:#3a382f}
.panel-head{display:flex;justify-content:space-between;align-items:center;padding:16px 18px 10px}
.panel-head span,.panel-head button{font-size:11px;color:var(--muted)}
.panel-head button:hover{color:#fff}
.panel-block{padding:16px 18px;border-top:1px solid var(--line)}
.panel-block .eyebrow{margin-bottom:10px}

.out-group{padding:4px 10px 8px}
.out-group>p{display:flex;justify-content:space-between;margin:6px 8px;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.out-group>p span{letter-spacing:0;text-transform:none}
.out-item{display:block;width:100%;text-align:left;padding:7px 8px;border-left:2px solid transparent;transition:background .15s}
.out-item span{display:block;font-size:13px}
.out-item small{font-size:11px;color:var(--muted)}
.out-item:hover{background:rgba(255,255,255,.05)}
.out-item.is-active{background:rgba(47,111,220,.18);border-left-color:var(--blue)}

.toggle{display:flex;align-items:center;gap:9px;margin:7px 0;font-size:13px;color:#dcd5c7;cursor:pointer}
.toggle input{accent-color:var(--gold)}
input[type=range]{width:100%;accent-color:var(--gold)}
.range-value{font-size:11px;color:var(--muted)}

.entity-info{padding:4px 18px 18px;flex:1}
.entity-info .empty{margin:0;color:var(--muted);font-size:13px}
.ent-kicker{margin:0;font-size:10px;letter-spacing:.16em;color:var(--gold-soft)}
.entity-info h2{margin:4px 0 2px;font:400 28px/1.05 var(--serif)}
.ent-room{margin:0 0 14px;color:var(--muted);font-size:12px}
.ent-grid{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.ent-grid div{padding:8px 10px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.ent-grid span{display:block;font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.ent-grid b{font-weight:500;font-size:13px}
.ent-trace{margin:14px 0}
.ent-trace div{display:grid;grid-template-columns:62px 1fr auto;gap:8px;padding:7px 0;border-bottom:1px dashed var(--line);font-size:12px}
.ent-trace span{color:var(--muted)}
.ent-trace b{font-weight:400;color:#ddd6c8}
.ent-cost{padding:12px 14px;background:rgba(47,111,220,.14);border:1px solid rgba(47,111,220,.4)}
.ent-cost span,.total-card span{display:block;font-size:9px;letter-spacing:.18em;color:var(--muted)}
.ent-cost strong{display:block;font:500 24px/1.2 var(--serif)}
.ent-cost small,.total-card small{font-size:11px;color:var(--muted)}
.total-card{margin:0 18px 16px;padding:14px 16px;background:var(--paper);color:var(--night)}
.total-card span,.total-card small{color:#6a6356}
.total-card strong{display:block;font:500 30px/1.15 var(--serif)}
.notes ul{margin:0;padding-left:16px;font-size:12px;color:#bdb5a6}
.notes li{margin-bottom:6px}

.statusbar{display:flex;justify-content:space-between;align-items:center;padding:0 16px;border-top:1px solid var(--line);background:#0f0e0b;font-size:11px;color:#bdb5a6}
.measure-box{display:flex;align-items:center;gap:10px}
.measure-box b{font-weight:500}
.measure-box output{min-width:110px;padding:2px 8px;background:#fff;color:#111;text-align:right}

@media (max-width:1100px){
  .workspace{grid-template-columns:1fr;grid-template-rows:60vh auto auto;overflow:auto}
  .viewport{grid-column:1;grid-row:1}
  .panel-left{grid-column:1;grid-row:3;border-right-width:0;border-top-width:1px}
  .panel-right{grid-column:1;grid-row:2;border-left-width:0}
  body{overflow:auto}
  .app{height:auto;min-height:100%;grid-template-rows:auto 1fr 32px}
  .topbar{flex-wrap:wrap;padding:10px 14px}
  .scene-tabs{order:3;width:100%;overflow-x:auto}
  .scene-tabs button{flex:1;white-space:nowrap}
  .view-hint{display:none}
}
@media (max-width:600px){
  .project-card{left:10px;top:10px;padding:10px 14px}
  .project-card h1{font-size:24px}
  .project-meta{display:none}
  .style-bar{top:auto;bottom:10px;right:10px;left:10px;justify-content:space-between}
  .style-bar button{padding:6px 8px;font-size:10px}
}