/* Brief 510 visual thinking. The canonical app shell owns tokens, top bar,
   navigation, buttons, rail and theme; this file owns only the vt- surfaces. */
html[data-view="brainstorm"][data-brainstorm-workspace="visual"] main{overflow:hidden}
html[data-view="brainstorm"][data-brainstorm-workspace="visual"] #v-brainstorm,
html[data-view="brainstorm"][data-brainstorm-workspace="visual"] #brainstorm-root,
html[data-view="brainstorm"][data-brainstorm-workspace="visual"] #bs-visual-page{height:100%;min-height:0}
html[data-view="brainstorm"][data-brainstorm-workspace="visual"] #brainstorm-root{max-width:none;padding:0}
body.vt-dialog-open{overflow:hidden}
.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.vt-workspace{height:100%;min-height:0;display:flex;flex-direction:column;background:var(--bg);color:var(--fg)}
.vt-head{min-height:68px;display:flex;align-items:center;gap:12px;padding:10px 16px;border-bottom:1px solid var(--line);background:var(--bg)}
.vt-mode-mark{display:grid;place-items:center;width:36px;height:36px;flex:none;border-radius:10px;background:var(--know-soft);color:var(--know);font-size:20px}
.vt-title{min-width:0}.vt-title h1{margin:0;font-size:16px;line-height:1.25;color:var(--fg)}.vt-title p{margin:2px 0 0;color:var(--muted);font-size:10.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.vt-head-actions{display:flex;align-items:center;gap:7px;margin-left:auto}.vt-review-count{min-width:16px;border-radius:999px;background:var(--on-accent);color:var(--accent);font:800 9px var(--mono)}
.vt-concept-legend{display:flex;flex-wrap:wrap;gap:6px;padding:7px 12px;border-bottom:1px solid var(--line);background:var(--bg-2)}.vt-concept-legend span{display:inline-flex;align-items:center;gap:5px;padding:3px 6px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:8px}.vt-concept-legend i{width:7px;height:7px;border-radius:2px;background:var(--accent-br)}.vt-concept-legend .tone-knowledge i{background:var(--know)}.vt-concept-legend .tone-priority i{background:var(--amber)}.vt-concept-legend .tone-recommendation i{background:var(--accent-br)}.vt-concept-legend .tone-risk i,.vt-concept-legend .tone-ruled_out i{background:var(--coral)}.vt-concept-legend .tone-accent i{background:var(--accent)}
.vt-story-panel.tone-knowledge,.vt-cause-chip.tone-knowledge,.vt-bone-label.tone-knowledge{border-color:var(--know);background:var(--know-soft)}.vt-story-panel.tone-priority,.vt-cause-chip.tone-priority,.vt-bone-label.tone-priority{border-color:var(--amber);background:var(--amber-soft)}.vt-story-panel.tone-recommendation,.vt-cause-chip.tone-recommendation,.vt-bone-label.tone-recommendation{border-color:var(--accent-br);background:var(--accent-soft)}.vt-story-panel.tone-risk,.vt-story-panel.tone-ruled_out,.vt-cause-chip.tone-risk,.vt-cause-chip.tone-ruled_out,.vt-bone-label.tone-risk,.vt-bone-label.tone-ruled_out{border-color:var(--coral);background:var(--coral-soft)}.vt-story-panel.tone-accent,.vt-cause-chip.tone-accent,.vt-bone-label.tone-accent{border-color:var(--accent);background:var(--accent-soft)}.vt-bone.tone-knowledge{background:var(--know)}.vt-bone.tone-priority{background:var(--amber)}.vt-bone.tone-recommendation,.vt-bone.tone-accent{background:var(--accent-br)}.vt-bone.tone-risk,.vt-bone.tone-ruled_out{background:var(--coral)}
.vt-modes{display:flex;gap:4px;padding:6px 10px;border-bottom:1px solid var(--line);background:var(--bg-2);overflow-x:auto;scrollbar-width:thin}
.vt-mode-link{display:inline-flex;align-items:center;gap:7px;min-height:32px;flex:0 0 auto;padding:5px 9px;border:1px solid transparent;border-radius:8px;background:transparent;color:var(--muted);font:650 10.5px var(--sans);cursor:pointer}.vt-mode-link:hover,.vt-mode-link.on{border-color:var(--line-2);background:var(--accent-soft);color:var(--accent-br)}.vt-mode-link .icon{font-size:16px}
.vt-source-strip{min-height:39px;display:flex;align-items:center;gap:7px;padding:6px 14px;border-bottom:1px solid var(--line);background:var(--know-soft);color:var(--fg-2);overflow-x:auto;scrollbar-width:none}.vt-source-strip>.icon{color:var(--know);font-size:16px}.vt-source-strip>b{font-size:10px;white-space:nowrap}.vt-source-strip>span:last-child{margin-left:auto;color:var(--muted);font-size:8.7px;white-space:nowrap}
.vt-source-chip{display:inline-flex;align-items:center;gap:5px;padding:4px 8px;border:1px solid var(--line);border-radius:999px;background:var(--bg-2);font-size:8.8px;color:var(--muted);white-space:nowrap}.vt-source-chip i{width:5px;height:5px;border-radius:50%;background:var(--know)}.vt-source-chip.ruled i{background:var(--coral)}.vt-source-chip.parking i{background:var(--amber)}.vt-source-chip.advice i{background:var(--accent-br)}
.vt-frame-chip,.vt-version-strip,.vt-question-state,.vt-progressive{display:inline-flex;align-items:center;gap:4px}.vt-frame-chip{padding:4px 7px;border:1px solid var(--line);border-radius:999px;background:var(--surface);color:var(--fg-2);font-size:8px;white-space:nowrap}.vt-frame-chip .icon{color:var(--accent-br);font-size:13px}.vt-version-strip{flex-wrap:wrap;gap:6px;padding:6px 14px;border-bottom:1px solid var(--line);background:var(--surface);color:var(--muted);font:650 8px var(--mono)}.vt-version-strip>span{display:inline-flex;align-items:center;gap:4px}.vt-version-strip .icon{color:var(--know);font-size:13px}.vt-question-state{margin-top:3px;color:var(--fg-2);font-size:8px;line-height:1.2}.vt-question-state .icon{font-size:13px}.vt-question-state[data-question-state="open"] .icon{color:var(--coral)}.vt-question-state[data-question-state="partially_answered"] .icon{color:var(--amber)}.vt-question-state[data-question-state="answered_unresolved"] .icon{color:var(--accent-br)}.vt-question-state[data-question-state="resolved"] .icon{color:var(--emerald)}.vt-progressive{position:absolute;z-index:7;right:13px;top:13px;max-width:calc(100% - 26px);padding:6px 8px;border:1px solid var(--line-2);border-radius:8px;background:var(--bg-2);color:var(--fg-2);font-size:8px}.vt-progressive .btn{min-height:32px}.vt-empty-canvas{position:absolute;left:50%;top:50%;display:grid;justify-items:center;gap:7px;width:min(360px,calc(100% - 32px));padding:18px;transform:translate(-50%,-50%);border:1px dashed var(--line-2);border-radius:12px;background:var(--surface);color:var(--muted);text-align:center}.vt-empty-canvas>.icon{color:var(--know);font-size:28px}.vt-empty-canvas b{color:var(--fg);font-size:11px}.vt-empty-canvas>small{max-width:320px;color:var(--faint);font-size:8.5px;line-height:1.45}
.vt-source-changed{display:flex;align-items:center;gap:9px;padding:8px 14px;border-bottom:1px solid var(--amber);background:var(--amber-soft);color:var(--fg-2)}.vt-source-changed>.icon{color:var(--amber)}.vt-source-changed>span{display:grid;gap:1px;min-width:0}.vt-source-changed b{font-size:10.5px}.vt-source-changed small{color:var(--muted);font-size:9px}.vt-source-changed .btn:first-of-type{margin-left:auto}
.vt-canvas-wrap{position:relative;flex:1;min-height:240px;overflow:hidden}.vt-canvas{position:absolute;inset:0;overflow:hidden;touch-action:none;background-color:var(--bg);background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);background-size:28px 28px;cursor:grab}.vt-canvas.selecting{cursor:default}.vt-canvas:active{cursor:grabbing}.vt-canvas:focus-visible{outline:2px solid var(--accent-br);outline-offset:-2px}
.vt-world{position:absolute;left:0;top:0;width:1500px;height:880px;transform-origin:0 0;transition:transform .16s ease-out}.vt-connectors{position:absolute;inset:0;width:1500px;height:880px;overflow:visible}.vt-edge{fill:none;stroke:var(--know);stroke-width:2;pointer-events:none}.vt-edge-hit{fill:none;stroke:transparent;stroke-width:18;cursor:pointer}.vt-edge-hit:hover,.vt-edge-hit:focus-visible,.vt-edge-hit.selected{stroke:color-mix(in srgb,var(--accent-br) 22%,transparent);outline:none}.vt-edge-label{fill:var(--muted);font:650 10px var(--sans);text-anchor:middle;pointer-events:none}
.vt-object{position:absolute;display:grid;align-content:center;gap:3px;padding:10px 12px;border:1px solid var(--line-2);border-radius:11px;background:var(--surface);color:var(--fg);font:inherit;text-align:center;cursor:move;user-select:none;transition:border-color .15s,background .15s,transform .15s}.vt-object:hover{transform:translateY(-1px)}.vt-object b{display:block;font-size:11px}.vt-object small{display:block;color:var(--muted);font-size:8.5px}.vt-object.selected,.vt-group-title.selected,.vt-bone-label.selected,.vt-fish-problem.selected,.vt-story-select.selected,.vt-sun-sector.selected{outline:2px solid var(--accent-br);outline-offset:3px}
.vt-object.tone-accent{border-color:var(--accent);background:var(--accent-soft)}.vt-object.tone-knowledge{border-color:var(--know);background:var(--know-soft)}.vt-object.tone-priority{border-color:var(--amber);background:var(--amber-soft)}.vt-object.tone-parking{border-color:var(--amber);opacity:.7}.vt-object.tone-ruled_out{text-decoration:line-through;opacity:.55}.vt-object.tone-risk{border-color:var(--coral);background:var(--coral-soft)}.vt-object.tone-evidence{border-color:var(--know)}.vt-object.tone-recommendation{border-style:dashed;border-color:var(--accent-br)}
.vt-object.mind{min-width:126px;max-width:210px}.vt-object.concept{display:flex;align-items:center;text-align:left;min-width:150px}.vt-object.sticky{display:block;width:130px;min-height:88px;text-align:left;border:0;border-left:4px solid var(--amber);border-radius:8px;background:var(--amber-soft)}.vt-object.sticky.tone-knowledge{border-left-color:var(--know)}.vt-object.sticky.tone-parking{border-left-color:var(--amber)}.vt-object.sticky.tone-ruled_out{border-left-color:var(--coral)}.vt-object.cause{width:150px;min-height:46px;text-align:left;border-radius:8px;background:var(--bg-2)}
.vt-tools{position:absolute;z-index:6;left:12px;top:12px;display:flex;align-items:center;gap:4px;max-width:calc(100% - 24px);padding:4px;border:1px solid var(--line-2);border-radius:10px;background:var(--bg-2);overflow-x:auto}.vt-tool{display:grid;place-items:center;width:31px;height:31px;flex:none;border:0;border-radius:7px;background:transparent;color:var(--muted);cursor:pointer}.vt-tool:hover,.vt-tool.on{background:var(--accent-soft);color:var(--accent-br)}.vt-tool:focus-visible,.vt-mode-link:focus-visible{outline:2px solid var(--accent-br);outline-offset:2px}.vt-tool .icon{font-size:17px}.vt-tool-sep{width:1px;height:20px;flex:none;background:var(--line)}
.vt-canvas-status{position:absolute;z-index:5;left:13px;bottom:13px;display:flex;align-items:center;gap:7px;padding:6px 9px;border:1px solid var(--line);border-radius:8px;background:var(--bg-2);color:var(--muted);font-size:9px}.vt-zoom{position:absolute;z-index:5;right:13px;bottom:13px;display:flex;align-items:center;border:1px solid var(--line-2);border-radius:9px;background:var(--bg-2);overflow:hidden}.vt-zoom button{width:34px;height:34px;border:0;border-right:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer}.vt-zoom button:last-child{border:0}.vt-zoom button:hover{background:var(--surface);color:var(--fg)}.vt-zoom span{min-width:44px;text-align:center;color:var(--muted);font:600 9px var(--mono)}
.vt-snap-preview{position:absolute;z-index:4;width:160px;height:74px;border:2px dashed var(--know);border-radius:10px;background:var(--know-soft);pointer-events:none;transform-origin:0 0}.vt-snap-preview span{position:absolute;left:0;top:-24px;padding:3px 6px;border-radius:5px;background:var(--know);color:var(--bg);font:800 8px var(--sans);white-space:nowrap}
.vt-savebar{display:flex;align-items:center;gap:8px;min-height:38px;padding:6px 14px;border-top:1px solid var(--line);background:var(--bg-2)}.vt-save-state{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:9.5px}.vt-save-state .icon{font-size:15px}.vt-save-state.saved .icon{color:var(--emerald)}.vt-save-state.saving .icon{color:var(--know)}.vt-save-state.failed{color:var(--coral)}.vt-savebar .btn{margin-left:auto}
.vt-outline-wrap{flex:none;max-height:0;overflow:hidden;background:var(--bg-2);transition:max-height .18s}.vt-outline-wrap:focus-within{max-height:42vh;overflow:auto;border-top:1px solid var(--line)}.vt-outline-wrap>header{display:flex;align-items:center;gap:8px;padding:9px 14px}.vt-outline-wrap h2{margin:0;font-size:11px}.vt-outline-wrap header span{color:var(--muted);font-size:9px}.vt-outline{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:5px;padding:0 14px 12px}.vt-outline-row{display:flex;align-items:flex-start;gap:8px;min-height:44px;padding:7px 9px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--fg-2);text-align:left;cursor:pointer}.vt-outline-row:hover,.vt-outline-row.selected{border-color:var(--accent);background:var(--accent-soft)}.vt-outline-row>.icon{color:var(--know);font-size:16px}.vt-outline-row>span:nth-child(2){display:grid;gap:2px;min-width:0;flex:1}.vt-outline-row b{font-size:10px}.vt-outline-row small{color:var(--muted);font-size:8.5px}.vt-outline-row>.icon:last-child{margin-left:auto;color:var(--accent-br)}
.vt-affinity-group{position:absolute;border:1px dashed var(--line-2);border-radius:12px;background:color-mix(in srgb,var(--surface) 52%,transparent)}.vt-group-title{position:absolute;left:10px;right:10px;top:8px;display:flex;align-items:center;gap:7px;width:calc(100% - 20px);min-height:30px;border:0;background:transparent;color:var(--fg);cursor:pointer}.vt-group-title i{width:8px;height:8px;border-radius:3px;background:var(--know)}.vt-group-title b{font-size:11px}.vt-group-title span{margin-left:auto;color:var(--muted);font-size:8px}
.vt-story-support{position:absolute;left:70px;top:45px;display:flex;gap:7px;max-width:1220px}.vt-story-support button{display:flex;align-items:center;gap:6px;max-width:220px;padding:6px 8px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--fg);text-align:left}.vt-story-support button>.icon{color:var(--accent-br);font-size:14px}.vt-story-support button span:last-child{min-width:0}.vt-story-support button b,.vt-story-support button small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.vt-story-support button b{font-size:8px}.vt-story-support button small{color:var(--muted);font-size:7px}.vt-story-lane{position:absolute;left:70px;top:130px;display:flex;align-items:flex-start;gap:18px}.vt-story-panel{position:relative;width:204px;height:314px;border:1px solid var(--line-2);border-radius:12px;background:var(--surface);overflow:visible}.vt-story-select{display:flex;flex-direction:column;width:100%;height:100%;padding:0;border:0;border-radius:inherit;background:transparent;color:var(--fg);text-align:left;cursor:pointer;overflow:hidden}.vt-story-top{display:flex;align-items:center;gap:7px;min-height:36px;padding:8px 10px;border-bottom:1px solid var(--line)}.vt-story-num{display:grid;place-items:center;width:20px;height:20px;border-radius:5px;background:var(--accent-soft);color:var(--accent-br);font:800 8px var(--mono)}.vt-story-top b{font-size:9.5px}.vt-story-top>.icon{margin-left:auto;color:var(--faint);font-size:14px}.vt-story-scene{position:relative;display:grid;place-items:center;height:142px;margin:10px;border-radius:9px;background:var(--bg-2)}.vt-story-scene>.icon{color:var(--accent-br);font-size:48px}.vt-story-scene>span:last-child{position:absolute;left:8px;bottom:8px;padding:4px 6px;border-radius:6px;background:var(--surface-2);color:var(--fg-2);font-size:8px}.vt-story-copy{display:grid;gap:4px;padding:0 11px}.vt-story-copy b{font-size:10px}.vt-story-copy small{color:var(--muted);font-size:8.5px;line-height:1.45}.vt-story-state{display:flex;align-items:center;gap:5px;margin:9px 11px 0;padding-top:8px;border-top:1px solid var(--line);color:var(--muted);font-size:8px}.vt-story-state i{width:6px;height:6px;border-radius:50%;background:var(--emerald)}.vt-order-actions{position:absolute;display:flex;gap:3px;left:50%;bottom:-34px;transform:translateX(-50%)}.vt-order-actions button{display:grid;place-items:center;width:30px;height:28px;border:1px solid var(--line);border-radius:7px;background:var(--bg-2);color:var(--muted);cursor:pointer}.vt-order-actions .icon{font-size:15px}
.vt-fish-head{position:absolute;left:90px;top:405px;display:flex;align-items:center;gap:7px;max-width:520px;color:var(--muted);font-size:9px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.vt-fish-head .icon{color:var(--know)}.vt-fish-spine{position:absolute;left:165px;top:430px;width:980px;height:3px;background:var(--line-2)}.vt-fish-spine:after{content:"";position:absolute;right:-12px;top:-6px;border-left:14px solid var(--coral);border-top:7px solid transparent;border-bottom:7px solid transparent}.vt-fish-problem{position:absolute;left:1160px;top:380px;width:230px;padding:14px;border:1px solid var(--coral);border-radius:11px;background:var(--coral-soft);color:var(--fg);text-align:left;cursor:pointer}.vt-fish-problem.empty{cursor:default}.vt-fish-problem small{display:block;color:var(--coral);font:700 8px var(--mono);text-transform:uppercase}.vt-fish-problem b{display:block;margin-top:6px;font-size:11.5px}.vt-bone{position:absolute;width:210px;height:2px;background:var(--line-2);transform-origin:left center}.vt-bone.up{transform:rotate(-48deg)}.vt-bone.down{transform:rotate(48deg)}.vt-bone-label{position:absolute;width:150px;padding:8px 10px;border:1px solid var(--line);border-radius:9px;background:var(--surface);color:var(--fg);text-align:left;cursor:pointer}.vt-bone-label b{display:block;font-size:9.5px}.vt-bone-label small{display:block;margin-top:2px;color:var(--muted);font-size:8px}.vt-cause-chip{position:absolute;width:145px;padding:7px 8px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--fg);text-align:left;cursor:pointer}.vt-cause-chip b{display:block;font-size:8px;line-height:1.35}.vt-cause-chip small{display:block;margin-top:3px;color:var(--muted);font-size:7px}
.vt-sunburst{position:absolute;inset:0;width:1500px;height:880px;overflow:visible}.vt-sun-sector{cursor:pointer;stroke:var(--bg);stroke-width:4;fill:color-mix(in srgb,var(--know) 72%,var(--surface))}.vt-sun-sector.ring-2{fill:color-mix(in srgb,var(--accent) 66%,var(--surface))}.vt-sun-sector.ring-3{fill:color-mix(in srgb,var(--pink) 48%,var(--surface))}.vt-sun-sector.ring-4{fill:color-mix(in srgb,var(--emerald) 35%,var(--surface))}.vt-sun-sector:hover,.vt-sun-sector:focus-visible{filter:brightness(1.18);outline:none;stroke:var(--fg);stroke-width:6}.vt-sun-sector.tone-parking{opacity:.45}.vt-sun-sector.tone-ruled_out{opacity:.3}.vt-sun-centre circle{fill:var(--surface);stroke:var(--accent-br);stroke-width:2}.vt-sun-centre text{text-anchor:middle;fill:var(--accent-br);font:700 9px var(--mono);letter-spacing:.06em}.vt-sun-centre .title{fill:var(--fg);font:800 15px var(--sans);letter-spacing:0}.vt-sun-label{text-anchor:middle;dominant-baseline:middle;fill:var(--fg);font:700 8px var(--sans);pointer-events:none}.vt-sun-crumb{position:absolute;z-index:2;left:475px;top:18px;display:flex;align-items:center;gap:7px;padding:7px 9px;border:1px solid var(--line);border-radius:9px;background:var(--bg-2);color:var(--muted);font-size:8.5px}.vt-sun-crumb>.icon{color:var(--accent-br);font-size:14px}.vt-sun-crumb b{color:var(--fg-2)}.vt-sun-crumb>span:last-child{padding:3px 6px;border-radius:5px;background:var(--accent-soft);color:var(--accent-br);font-weight:700}.vt-sun-legend{position:absolute;left:1160px;top:120px;display:grid;gap:8px;width:220px;padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--bg-2);color:var(--muted);font-size:8.5px}.vt-sun-legend span{display:flex;align-items:center;gap:7px}.vt-sun-legend i{width:10px;height:10px;border-radius:3px;background:var(--know)}.vt-sun-legend b{padding-top:8px;border-top:1px solid var(--line);color:var(--amber);font-size:8px}.vt-sun-boundary{position:absolute;left:1158px;top:560px;display:flex;gap:8px;width:230px;padding:11px;border:1px solid var(--coral);border-radius:10px;background:var(--coral-soft)}.vt-sun-boundary>.icon{color:var(--coral)}.vt-sun-boundary b{display:block;font-size:9px}.vt-sun-boundary small{display:block;margin-top:3px;color:var(--muted);font-size:8px}
.vt-rail-foot{padding:10px;color:var(--muted);font-size:8.5px;line-height:1.45}.vt-rail-foot .icon{margin-right:4px;color:var(--emerald);font-size:14px;vertical-align:-3px}.vt-source-card,.vt-inspector{margin-top:8px;border:1px solid var(--line);border-radius:10px;background:var(--surface);overflow:hidden}.vt-source-card summary{display:flex;align-items:center;gap:7px;min-height:38px;padding:8px 10px;list-style:none;cursor:pointer}.vt-source-card summary::-webkit-details-marker{display:none}.vt-source-card summary>.icon{color:var(--know);font-size:15px}.vt-source-card summary b{font-size:9.5px}.vt-source-card summary:after{content:"expand_more";margin-left:auto;color:var(--faint);font:400 16px "Material Symbols Rounded"}.vt-source-card:not([open]) summary:after{content:"chevron_right"}.vt-count{display:grid;place-items:center;min-width:18px;height:18px;border-radius:5px;background:var(--surface-2);color:var(--muted);font:700 8px var(--mono)}.vt-source-body{padding:0 10px 10px}.vt-source-row{display:flex;align-items:flex-start;gap:7px;width:100%;padding:7px 0;border:0;border-top:1px solid var(--line);background:transparent;color:var(--fg-2);font:500 9px/1.5 var(--sans);text-align:left;cursor:pointer}.vt-source-row .icon{color:var(--muted);font-size:13px}.vt-source-empty{color:var(--muted);font-size:9px}.vt-inspector{padding:10px}.vt-inspector.empty{display:grid;justify-items:center;gap:5px;padding:18px 10px;text-align:center;color:var(--muted)}.vt-inspector.empty>.icon{color:var(--accent-br)}.vt-inspector.empty b{font-size:10px}.vt-inspector.empty p{margin:0;font-size:8.5px}.vt-inspector-head{display:flex;align-items:center;gap:7px;margin-bottom:9px}.vt-inspector-head .icon{color:var(--accent-br);font-size:15px}.vt-inspector-head b{font-size:9.5px}.vt-inspector label,.vt-field-label{display:block;margin:8px 0 5px;color:var(--faint);font:700 7.5px var(--mono);letter-spacing:.05em;text-transform:uppercase}.vt-inspector .field{width:100%;font-size:9px}.vt-status-grid{display:grid;grid-template-columns:1fr 1fr;gap:5px}.vt-status-btn{display:flex;align-items:center;gap:5px;padding:6px;border:1px solid var(--line);border-radius:7px;background:var(--bg-2);color:var(--muted);font-size:8px;cursor:pointer}.vt-status-btn:hover,.vt-status-btn.on{border-color:var(--accent);background:var(--accent-soft);color:var(--fg)}.vt-status-btn .icon{font-size:13px}.vt-structure-note{display:block;margin-top:5px;color:var(--muted);font-size:7.5px}.vt-structure-buttons,.vt-insight-actions,.vt-inspector-actions{display:flex;gap:5px;margin-top:8px}.vt-insight-actions{display:grid;grid-template-columns:1fr;padding-top:10px;border-top:1px solid var(--line)}.vt-insight-actions .btn{justify-content:flex-start}.vt-inspector-actions .btn{flex:1}
.vt-loading{height:100%;display:flex;flex-direction:column}.vt-source-skeleton{height:44px;border-bottom:1px solid var(--line);background:linear-gradient(90deg,var(--know-soft),var(--surface),var(--know-soft));background-size:200% 100%;animation:vt-shimmer 1.3s linear infinite}.vt-canvas-skeleton{flex:1;display:grid;place-content:center;justify-items:center;gap:8px;color:var(--muted)}.vt-loading-spinner{width:30px;height:30px;border:3px solid var(--know-soft);border-top-color:var(--know);border-radius:50%;animation:vt-spin .8s linear infinite}.vt-canvas-skeleton>.icon{font-size:42px;color:var(--know)}.vt-canvas-skeleton b{color:var(--fg);font-size:14px}.vt-state-card{display:flex;gap:12px;width:min(620px,calc(100% - 32px));margin:56px auto;padding:20px;border:1px solid var(--coral);border-radius:12px;background:var(--surface)}.vt-state-card>.icon{color:var(--coral)}.vt-state-card h2{margin:0;font-size:16px}.vt-state-card p{color:var(--muted);font-size:12px}.vt-state-actions{display:flex;gap:8px}
.vt-backdrop{position:fixed;inset:0;z-index:220;background:color-mix(in srgb,var(--bg) 74%,transparent);backdrop-filter:blur(3px)}.vt-review-sheet{position:fixed;z-index:221;right:0;top:0;bottom:0;display:flex;flex-direction:column;width:min(500px,100%);border-left:1px solid var(--line-2);background:var(--bg-2);box-shadow:var(--shadow)}.vt-review-sheet[hidden],.vt-backdrop[hidden],.vt-dialog[hidden]{display:none}.vt-review-sheet>header,.vt-dialog>header{display:flex;align-items:flex-start;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line)}.vt-review-sheet header>span:nth-child(2),.vt-dialog header>span:nth-child(2){min-width:0}.vt-review-sheet h2,.vt-dialog h2{margin:0;font-size:14px}.vt-review-sheet header p{margin:3px 0 0;color:var(--muted);font-size:9.5px}.vt-review-sheet header>.iconbtn,.vt-dialog header>.iconbtn{margin-left:auto}.vt-review-mark,.vt-explorer-mark{display:grid;place-items:center;width:36px;height:36px;flex:none;border-radius:10px;background:var(--accent-soft);color:var(--accent-br)}.vt-review-body{flex:1;overflow:auto;padding:14px 16px}.vt-review-sheet>footer{display:flex;align-items:center;gap:8px;padding:12px 16px;border-top:1px solid var(--line)}.vt-review-sheet>footer>span{color:var(--muted);font-size:9px}.vt-review-sheet>footer>.btn{margin-left:auto}
.vt-version-line{display:flex;align-items:center;gap:8px;padding:9px 10px;border:1px solid var(--line);border-radius:9px;background:var(--surface)}.vt-version-line .icon{color:var(--accent-br);font-size:15px}.vt-version-line b{font-size:9px}.vt-version-line span:last-child{margin-left:auto;color:var(--emerald);font-size:8px}.vt-proposal-rule{display:flex;gap:8px;margin-top:12px;padding:10px;border:1px solid var(--accent);border-radius:8px;background:var(--accent-soft);color:var(--fg-2);font-size:8.5px;line-height:1.5}.vt-proposal-rule>.icon{color:var(--accent-br);font-size:15px}.vt-proposal-rule b{display:block;color:var(--fg)}.vt-ignored{margin-top:10px;color:var(--muted);font-size:8.5px}.vt-change-group{margin-top:14px}.vt-change-group h3{margin:0 0 7px;color:var(--muted);font-size:9.5px;text-transform:uppercase}.vt-change-item{display:grid;grid-template-columns:18px minmax(0,1fr) auto;gap:8px;align-items:start;padding:10px 0;border-top:1px solid var(--line)}.vt-change-item input{accent-color:var(--accent)}.vt-change-item b{display:block;font-size:9.5px}.vt-change-item p{margin:3px 0;color:var(--muted);font-size:8.5px}.vt-change-item details{margin-top:6px;color:var(--accent-br);font-size:8px}.vt-change-item dl{display:grid;grid-template-columns:64px 1fr;gap:4px;margin:6px 0 0;padding:7px;border-radius:7px;background:var(--surface)}.vt-change-item dt{color:var(--faint);font-weight:800}.vt-change-item dd{margin:0;color:var(--fg-2);overflow-wrap:anywhere}.vt-change-type{padding:3px 6px;border-radius:5px;background:var(--surface-2);color:var(--muted);font:700 7px var(--mono);text-transform:uppercase}.vt-review-note,.vt-apply-error{display:flex;gap:7px;margin-top:12px;padding:9px 10px;border-radius:8px;background:var(--know-soft);color:var(--fg-2);font-size:8.5px}.vt-review-note .icon{color:var(--know);font-size:14px}.vt-apply-error{display:block;border:1px solid var(--coral);background:var(--coral-soft)}.vt-review-empty{margin-top:14px;padding:16px;border:1px dashed var(--line-2);border-radius:9px;text-align:center}.vt-review-empty b{font-size:10px}.vt-review-empty p{color:var(--muted);font-size:9px}
.vt-dialog{position:fixed;z-index:221;left:50%;top:50%;display:flex;flex-direction:column;width:min(760px,calc(100% - 30px));max-height:min(760px,calc(100% - 40px));transform:translate(-50%,-50%);border:1px solid var(--line-2);border-radius:14px;background:var(--bg-2);box-shadow:var(--shadow);overflow:hidden}.vt-dialog>header>span>small{display:block;color:var(--faint);font:700 7.5px var(--mono);letter-spacing:.08em}.vt-dialog-body{flex:1;overflow:auto;padding:14px 16px 20px}.vt-dialog>footer{display:flex;align-items:center;gap:10px;padding:11px 16px;border-top:1px solid var(--line)}.vt-dialog>footer>span{color:var(--muted);font-size:8px}.vt-dialog>footer>span .icon{margin-right:4px;color:var(--emerald);font-size:13px;vertical-align:-3px}.vt-dialog>footer>.btn{margin-left:auto}.vt-dialog-loading,.vt-dialog-error{padding:18px;color:var(--muted);font-size:10px}.vt-dialog-error{color:var(--coral)}
.vt-node-trail{display:flex;align-items:center;gap:5px;color:var(--muted);font-size:8.5px}.vt-node-trail .icon{font-size:14px}.vt-node-trail b{color:var(--fg-2)}.vt-explore-block{margin-top:12px;padding:13px;border:1px solid var(--line);border-radius:11px;background:var(--surface)}.vt-section-label{display:flex;align-items:center;gap:8px;margin-bottom:9px;font-size:9.5px;font-weight:750}.vt-section-label>small{margin-left:auto;color:var(--faint);font-size:7.5px}.vt-grounded{display:flex;align-items:center;gap:4px;margin-left:auto;padding:3px 6px;border-radius:5px;background:var(--emerald-soft);color:var(--emerald);font-size:7.5px}.vt-grounded .icon{font-size:11px}.vt-explore-block>p{color:var(--fg-2);font-size:10px;line-height:1.6}.vt-structure-readout{display:flex;gap:7px;margin-top:10px;padding:9px;border-radius:8px;background:var(--bg-2)}.vt-structure-readout>.icon{color:var(--accent-br);font-size:15px}.vt-structure-readout span{display:grid;gap:3px}.vt-structure-readout b{font-size:8.5px}.vt-structure-readout small{color:var(--muted);font-size:8px}.vt-provenance{color:var(--muted);font-size:8px}.vt-provenance ul{padding-left:18px}.vt-explore-block>label{display:block;margin:10px 0 5px;color:var(--muted);font-size:8px}.vt-explore-block>.field{width:100%;font-size:10px}.vt-explore-block>#vt-augment{margin-top:8px}
.vt-action-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.vt-action-grid button{min-height:78px;padding:9px;border:1px solid var(--line);border-radius:9px;background:var(--bg-2);color:var(--fg-2);text-align:left;cursor:pointer}.vt-action-grid button:hover{border-color:var(--accent);background:var(--accent-soft)}.vt-action-grid .icon{display:block;margin-bottom:6px;color:var(--accent-br);font-size:17px}.vt-action-grid b{display:block;font-size:8.8px}.vt-action-grid small{display:block;margin-top:2px;color:var(--muted);font-size:7.3px}.vt-attributed{display:flex;gap:8px;margin-top:10px;padding:9px;border:1px solid var(--accent);border-radius:8px;background:var(--accent-soft)}.vt-attributed>.icon{color:var(--accent-br)}.vt-attributed b{display:block;font-size:8.5px}.vt-attributed small{color:var(--muted);font-size:7.5px}.vt-draft-result{display:flex;align-items:flex-start;gap:8px;margin-top:7px;padding:9px;border:1px solid var(--line);border-radius:8px;background:var(--bg-2)}.vt-draft-result>span{flex:1}.vt-draft-result b{font-size:9px}.vt-draft-result p{margin:3px 0;color:var(--fg-2);font-size:8.5px}
.vt-expert-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.vt-expert-card{position:relative;display:flex;align-items:center;gap:8px;padding:9px;border:1px solid var(--line);border-radius:9px;background:var(--bg-2);cursor:pointer}.vt-expert-card:has(input:checked){border-color:var(--accent);background:var(--accent-soft)}.vt-expert-card input{position:absolute;right:7px;top:7px;accent-color:var(--accent)}.vt-expert-card>span:nth-of-type(2){display:grid;gap:2px;min-width:0}.vt-expert-card b{font-size:8.7px}.vt-expert-card small{color:var(--muted);font-size:7.2px}.vt-expert-card em{margin-left:auto;align-self:flex-end;color:var(--faint);font-size:6.8px;font-style:normal}.vt-expert-mark{display:grid;place-items:center;width:32px;height:32px;flex:none;border-radius:9px;border:1px solid var(--line-2);background:var(--surface);overflow:hidden}.vt-expert-mark img{width:100%;height:100%;object-fit:cover}.vt-expert-mark .av{width:30px;height:30px}.vt-expert-controls{display:flex;gap:7px;margin-top:9px}.vt-expert-response{margin-top:9px;padding:11px;border:1px solid var(--line-2);border-radius:10px;background:var(--bg-2)}.vt-expert-response header{display:flex;align-items:center;gap:8px}.vt-expert-response header>span:nth-child(2){display:grid;gap:2px}.vt-expert-response header b{font-size:9px}.vt-expert-response header small{color:var(--muted);font-size:7.3px}.vt-expert-response header em{margin-left:auto;padding:3px 6px;border-radius:5px;background:var(--amber-soft);color:var(--amber);font-size:7px;font-style:normal}.vt-expert-response p{color:var(--fg-2);font-size:9px;line-height:1.55}.vt-expert-response dl{display:grid;grid-template-columns:80px 1fr;gap:4px;font-size:8px}.vt-expert-response dt{color:var(--muted);font-weight:800}.vt-expert-response dd{margin:0;color:var(--fg-2)}
.vt-history{width:min(640px,calc(100% - 30px))}.vt-history-row{display:flex;align-items:center;gap:10px;padding:10px 11px;border:1px solid var(--line);border-radius:10px;background:var(--surface)}.vt-history-row>span{display:grid;gap:3px;flex:1}.vt-history-row b{font-size:10px}.vt-history-row small{color:var(--muted);font-size:8.5px}
@keyframes vt-shimmer{to{background-position:-200% 0}}@keyframes vt-spin{to{transform:rotate(360deg)}}
@media(max-width:1120px){.vt-title p{max-width:34vw}.vt-mode-link span:not(.icon){display:none}.vt-mode-link{width:34px;justify-content:center}.vt-sun-legend,.vt-sun-boundary{display:none}}
@media(max-width:760px){
  html[data-view="brainstorm"][data-brainstorm-workspace="visual"] #brainstorm-root{height:calc(100dvh - 58px)}
  .vt-head{min-height:62px;padding:8px 10px}.vt-title p{max-width:42vw}.vt-head-actions .btn.ghost{display:none}.vt-head-actions .btn{min-height:42px;padding-inline:10px}.vt-source-strip{padding:6px 10px}.vt-source-strip>span:last-child{display:none}.vt-version-strip{padding-inline:10px}.vt-canvas-wrap{min-height:0}.vt-tools{left:8px;top:8px;max-width:calc(100% - 16px)}.vt-tool{width:40px;height:40px}.vt-canvas-status{display:none}.vt-progressive{left:8px;right:auto;top:58px;max-width:calc(100% - 16px)}.vt-zoom{right:max(8px,env(safe-area-inset-right));bottom:max(8px,env(safe-area-inset-bottom))}.vt-zoom button{width:42px;height:42px}.vt-savebar{padding-bottom:max(6px,env(safe-area-inset-bottom))}
  .vt-outline-wrap:focus-within{max-height:50vh}.vt-outline{grid-template-columns:1fr}
  .vt-review-sheet{top:0;width:100%;border-left:0}.vt-dialog{inset:0;width:100%;max-height:none;height:100dvh;transform:none;border-radius:0;border-width:0}.vt-dialog>footer{padding-bottom:max(11px,env(safe-area-inset-bottom))}.vt-action-grid{grid-template-columns:1fr 1fr}.vt-expert-strip{grid-template-columns:1fr}.vt-expert-controls{flex-wrap:wrap}.vt-section-label{align-items:flex-start;flex-wrap:wrap}.vt-grounded{margin-left:0}.vt-change-item{grid-template-columns:18px 1fr}.vt-change-type{grid-column:2}.vt-story-lane{left:36px}.vt-sun-crumb{left:390px}
}
@media(max-width:420px){.vt-title p{display:none}.vt-mode-mark{width:32px;height:32px}.vt-source-chip{padding-inline:6px}.vt-action-grid{grid-template-columns:1fr}.vt-review-sheet>footer{align-items:stretch;flex-direction:column}.vt-review-sheet>footer>.btn{width:100%;margin-left:0;min-height:44px}}
@media(max-width:760px){
  .vt-story-support{left:20px;top:20px;max-width:430px;flex-wrap:wrap}.vt-story-support button{max-width:132px}
  .vt-story-lane{left:20px;top:135px;display:grid;grid-template-columns:repeat(2,190px);gap:30px 18px;width:398px}
  .vt-story-panel{width:190px;height:220px}.vt-story-top{min-height:30px;padding:6px 8px}.vt-story-scene{height:78px;margin:7px}.vt-story-scene>.icon{font-size:32px}.vt-story-copy{padding:0 8px}.vt-story-state{margin:6px 8px 0;padding-top:5px}
  .vt-sun-label{font-size:12px}.vt-sun-centre .title{font-size:15px}.vt-sun-centre text{font-size:11px}
  .vt-bone-label b{font-size:11px}.vt-bone-label small{font-size:9px}.vt-cause-chip b{font-size:10px}.vt-cause-chip small{font-size:8.5px}
}
@media(prefers-reduced-motion:reduce){.vt-world,.vt-outline-wrap,.vt-object{transition:none}.vt-source-skeleton{animation:none}}

/* State and focus fixes validated in the Brief 510 visual comparison pass. */
.vt-savebar [hidden]{display:none!important}
.vt-sun-centre{cursor:pointer}
.vt-sun-centre:hover circle,.vt-sun-centre:focus-visible circle{stroke:var(--fg);stroke-width:4}
.vt-sun-centre text{pointer-events:none}
.vt-sun-centre .title{font-size:13px}