.td3-demo{--td3-bg:#f2f0e8;--td3-surface:#7d9673;--td3-next:#c07b32;--td3-collision:#256f99;--td3-grid:#b8b3a6;--td3-brush:#c38a3e;--td3-ground:#e5e2d6;--td3-wire:#707a69;--td3-light:#fffaf0}
:root[data-theme=dark] .td3-demo{--td3-bg:#1d2b25;--td3-surface:#9db48a;--td3-next:#e5ad63;--td3-collision:#82c6e5;--td3-grid:#536359;--td3-brush:#e7b765;--td3-ground:#293a30;--td3-wire:#a7b7a4;--td3-light:#f2f1dc}
.td3-toolbar{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:18px;margin:18px 0}.td3-toolbar label,.td3-inspector>label{display:flex;flex-wrap:wrap;justify-content:space-between;gap:9px;font-size:12px;line-height:1.8;min-width:0}.td3-toolbar select,.td3-inspector select{width:100%;min-width:0;min-height:42px;font:inherit;font-size:13px;padding:8px;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:5px}.td3-toolbar input,.td3-inspector input{width:100%;min-width:0;margin:0;min-height:27px;accent-color:var(--green)}.td3-toolbar output,.td3-inspector label output{font-variant-numeric:tabular-nums}.td3-actions{display:flex;flex-wrap:wrap;gap:9px;margin:18px 0}.td3-demo button{font:inherit;font-size:12px;padding:8px 11px;min-height:42px;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:5px}.td3-demo button:disabled{opacity:.45}.td3-demo #td3-dig{background:var(--soft);border-color:var(--green)}.td3-layout{display:grid;grid-template-columns:minmax(0,1fr) 235px;gap:20px}.td3-layout>*{min-width:0}.td3-viewport{position:relative;width:100%;height:490px;border:1px solid var(--line);background:var(--td3-bg);border-radius:8px;overflow:hidden}.td3-viewport canvas{display:block;width:100%;height:100%;touch-action:none}.td3-viewport #td3-loading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:22px;text-align:center;font-size:13px;line-height:1.9;color:var(--ink);background:var(--td3-bg);z-index:1}.td3-view-tools{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:10px;align-items:center}.td3-view-tools>span{font-size:11px;line-height:1.85;color:var(--muted);flex:1 1 240px}.td3-view-tools>div{display:flex;gap:5px}.td3-view-tools button{min-width:40px;min-height:38px;font-size:17px;padding:3px 10px}.td3-legend{display:flex;flex-wrap:wrap;gap:9px 16px;margin-top:10px;font-size:11px;line-height:1.8}.td3-current{color:var(--green)}.td3-pending{color:var(--td3-next)}.td3-physics{color:var(--td3-collision)}.td3-inspector{border-left:1px solid var(--line);padding-left:18px}.terrain-reference .td3-inspector h3{font-size:14px;margin:0 0 15px}.td3-tree-root{padding:10px 8px;text-align:center;font:12px var(--mono);background:var(--soft);margin:15px 0 9px;border:1px solid var(--line)}.td3-tree-root[data-changed=true]{border-color:var(--td3-next)}.td3-parents{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:5px;margin-bottom:18px}.td3-parents span{padding:7px 2px;text-align:center;font:11px var(--mono);border-bottom:2px solid var(--line)}.td3-parents [data-changed=true]{border-color:var(--td3-next);background:var(--soft)}.td3-blocks{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:5px;margin:12px 0}.td3-blocks button{font:11px var(--mono);padding:7px 0;border-radius:3px;min-height:34px}.td3-blocks [data-changed=true]{border-color:var(--td3-next)}.td3-blocks [aria-pressed=true]{background:var(--soft);box-shadow:inset 0 0 0 1px var(--green)}.td3-block-detail{display:block;font-size:12px;line-height:1.9;min-height:75px;overflow-wrap:anywhere}.terrain-reference .td3-structure-note,.terrain-reference .td3-scope{font-size:12px;color:var(--muted);line-height:1.9;margin:10px 0 0}.td3-stages{list-style:none;display:flex;flex-wrap:wrap;gap:10px 20px;padding:0;margin:25px 0 13px;color:var(--muted)}.terrain-reference .td3-stages li{font-size:12px;line-height:1.8}.td3-stages [aria-current=step]{color:var(--ink);text-decoration:underline;text-underline-offset:5px}.td3-status{display:block;font-size:13px;line-height:1.95;min-height:26px}.td3-state{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin:22px 0}.td3-state dt{font-size:12px;line-height:1.8;color:var(--muted);margin-bottom:7px}.td3-state dd{margin:0;font:13px var(--mono);overflow-wrap:anywhere;line-height:1.9}.td3-probe{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 0;display:grid;gap:9px;margin:20px 0}.td3-probe b{font-size:13px;font-weight:500}.td3-probe output{font-size:13px;font-variant-numeric:tabular-nums;line-height:1.9}.td3-probe>span{font-size:12px;line-height:1.9;color:var(--muted)}
@media(max-width:850px){.td3-layout{grid-template-columns:1fr}.td3-inspector{border-left:0;border-top:1px solid var(--line);padding:20px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:12px 24px;align-items:start}.td3-inspector>h3,.td3-inspector>.td3-structure-note{grid-column:1/-1}.td3-inspector>label{grid-column:1}.td3-inspector .td3-tree-root{margin:0;grid-column:2;grid-row:2}.td3-inspector .td3-parents{grid-column:2;grid-row:3;margin:0}.td3-inspector .td3-blocks{grid-column:1;grid-row:4;margin:0}.td3-inspector .td3-block-detail{grid-column:2;grid-row:4}.td3-viewport{height:440px}.td3-toolbar{grid-template-columns:1fr 1fr}.td3-toolbar>label:first-child{grid-column:1/-1}.td3-state{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.td3-viewport{height:360px}.td3-toolbar{grid-template-columns:1fr}.td3-inspector{display:block}.td3-inspector>label{margin:14px 0 9px}.td3-inspector .td3-tree-root{margin:14px 0 9px}.td3-inspector .td3-parents{margin-bottom:15px}.td3-inspector .td3-block-detail{min-height:0;margin-top:12px}.td3-blocks button{min-height:40px;font-size:12px}.td3-parents span{font-size:12px}.td3-demo button{min-height:44px}.td3-view-tools>div{width:100%;justify-content:space-between}.td3-state{gap:13px}.td3-state dd{font-size:12px}.td3-legend{font-size:12px}.td3-actions>button{flex:1 1 110px}}