:root{--bg:#0a0e1a;--panel:#111728db;--border:#96aadc29;--text:#e7ecf8;--text-soft:#c6cfe4;--muted:#94a1bf;--accent:#6ea8ff;--accent-strong:#4d8df7;--danger:#ff8080;--success:#5ee0a0;--surface:#0d1324;--surface-raised:#141b2e;--surface-sheet:#0d1222;--fill-faint:#96aadc12;--hover:#96aadc1a;--fill:#96aadc1f;--hover-strong:#96aadc2e;--line:#96aadc66;--tint:#6ea8ff2e;--tint-faint:#6ea8ff1a;--input:#05081099;--backdrop:#0508108c;--gate:#0a0e1ab8;--shadow:#00000059;--shadow-soft:#0000004d;--fold-shadow:#00000080;--control-hover:#242f4eeb;--card:#111728b3;--glow:#1a2440;--glow-edge:#0d1324;--chip:#080c18cc;--chip-hover:#1e2842f2;--chip-ring:#e7ecf8b3;--chip-text:#e7ecf8;--veil:#0a0e1a8c;--pending:saturate(.5) brightness(.55);--failed:grayscale(1) brightness(.45);--overlay:#0d122299;--overlay-ring:#ffffff40;--overlay-text:#fff;--overlay-shadow:#00000073;--safe-top:env(safe-area-inset-top,0px);--safe-right:env(safe-area-inset-right,0px);--safe-bottom:env(safe-area-inset-bottom,0px);--safe-left:env(safe-area-inset-left,0px);--runway:0px;--runway-below:0px;color-scheme:dark}:root[data-theme=light]{--bg:#fff;--panel:#ffffffe0;--border:#1e2d5024;--text:#18213a;--text-soft:#3d4866;--muted:#5d6987;--accent:#2a62cf;--accent-strong:#2f6fe0;--danger:#c8373a;--success:#069c64;--surface:#f2f4f8;--surface-raised:#fff;--surface-sheet:#f7f8fb;--fill-faint:#1e2d500a;--hover:#1e2d500f;--fill:#1e2d5014;--hover-strong:#1e2d501c;--line:#1e2d504d;--tint:#2f6fe01f;--tint-faint:#2f6fe012;--input:#fff;--backdrop:#141c3059;--gate:#eef1f6cc;--shadow:#141e3c24;--shadow-soft:#141e3c1f;--fold-shadow:#141e3c1f;--control-hover:#ecf0f7f5;--card:#fffc;--glow:#eef2fa;--glow-edge:#fff;--chip:#ffffffe6;--chip-hover:#fff;--chip-ring:#1e2d504d;--chip-text:#18213a;--veil:#fff9;--pending:saturate(.5) contrast(.6) brightness(1.2);--failed:grayscale(1) contrast(.5) brightness(1.15);--overlay:#ffffffbf;--overlay-ring:#1e2d5024;--overlay-text:#18213a;--overlay-shadow:#141e3c2e;color-scheme:light}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}html{touch-action:pan-x pan-y}body{background:var(--bg);color:var(--text);font:14px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;overflow:hidden}@media (width<=760px){html.runway{--runway:64px;--runway-below:120px;--safe-top:calc(env(safe-area-inset-top,0px) + var(--runway));overscroll-behavior:none;height:auto;overflow-y:scroll}html.runway body{height:auto;overflow:visible}html.runway #root{height:calc(100dvh + var(--runway))}html.runway :is(.gate,.overlay-backdrop,.spec-editor){top:calc(-1 * var(--runway))}html.runway .app.scene-only .stage{margin-bottom:calc(-1 * var(--runway-below))}html.runway .sidebar{transition:transform .35s cubic-bezier(.38,.7,.125,1)}html.runway .app{transition:--sheet-open .35s cubic-bezier(.38,.7,.125,1)}html.runway.keyboard .sidebar{transform:translateY(calc(-1 * var(--keyboard,0px)))}html.runway.keyboard .sidebar:after{content:"";height:var(--keyboard,0px);background:var(--surface-sheet);position:absolute;top:100%;left:0;right:0}}h1,h2,h3,h4,p{margin:0}button,textarea,input{font:inherit;color:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.45}code{background:var(--fill);border-radius:4px;padding:1px 5px;font:12px ui-monospace,SFMono-Regular,Menlo,monospace}.muted{color:var(--muted)}.app{--covered:calc(376px + var(--safe-left));--sheet:0px;height:100%;display:flex}@property --sheet-open{syntax:"<length>";inherits:true;initial-value:0}.sidebar{z-index:160;top:calc(16px + var(--safe-top));bottom:calc(16px + var(--safe-bottom));left:calc(16px + var(--safe-left));flex-direction:column;gap:12px;width:360px;padding:16px;display:flex}@media (width>760px){.sidebar{position:absolute}.sidebar.stand-in-sheet{display:none}}@media (width<=760px){.sidebar.stand-in-float{display:none}}.sheet-fold{display:contents}.sidebar-header{align-items:center;gap:8px;display:flex}.account{align-items:center;gap:8px;font-size:13px;display:flex}.account span{text-overflow:ellipsis;white-space:nowrap;min-width:0;color:var(--text);flex:1;overflow:hidden}.link{color:var(--accent);background:0 0;border:0;padding:0}.link:hover{text-decoration:underline}.account-menu{margin-left:auto;display:flex;position:relative}.avatar{border:1px solid var(--border);background:var(--tint);border-radius:50%;place-items:center;width:30px;height:30px;padding:0;font-size:13px;font-weight:600;display:grid;overflow:hidden}.avatar img{object-fit:cover;width:100%;height:100%;display:block}.avatar[aria-expanded=true]{border-color:var(--accent)}.account-popover{z-index:220;background:var(--surface-raised);overflow-wrap:anywhere;flex-direction:column;align-items:flex-start;gap:6px;width:max-content;max-width:min(280px,100vw - 20px);padding:12px 14px;font-size:13px;display:flex;position:absolute;top:calc(100% + 8px);right:0}.account-popover .button,.account-theme{margin-top:4px}.sidebar-sign-in{margin-left:auto;font-size:13px}.sheet-handle{touch-action:none;background:0 0;border:0;flex:none;height:22px;margin:0 -10px;padding:0}.sheet-handle:before{content:"";background:var(--line);border-radius:2px;width:38px;height:4px;margin:0 auto;display:block}.gate{z-index:300;padding:calc(24px + var(--safe-top)) calc(24px + var(--safe-right)) calc(24px + var(--safe-bottom)) calc(24px + var(--safe-left));background:var(--gate);backdrop-filter:blur(8px);place-items:center;display:grid;position:fixed;inset:0}.gate-card{text-align:center;flex-direction:column;gap:14px;width:min(380px,100%);padding:28px;display:flex;position:relative}.gate-card .logo{width:min(100%,280px)}.gate-card h1{letter-spacing:-.01em;font-size:18px;font-weight:600}.gate-card form{flex-direction:column;gap:10px;display:flex}.gate-or{color:var(--muted);align-items:center;gap:10px;font-size:12px;display:flex}.gate-or:before,.gate-or:after{content:"";border-top:1px solid var(--border);flex:1}.gate-links{justify-content:space-between;font-size:13px;display:flex}.gate-terms{font-size:12px}.gate-terms a{color:inherit}.gate-close{position:absolute;top:12px;right:12px}textarea,input{border:1px solid var(--border);background:var(--input);resize:none;border-radius:10px;outline:none;width:100%;padding:10px 12px}textarea:focus,input:focus{border-color:var(--accent)}.thread{flex-direction:column;flex:1;gap:12px;min-height:0;margin:0 -8px;padding:4px 8px 16px;display:flex;overflow-y:auto}.thread-empty{flex-direction:column;gap:10px;margin:auto 0;padding:0 6px;display:flex}.shared-note{gap:16px}.shared-note section{flex-direction:column;align-items:flex-start;gap:6px;display:flex}.shared-note section+section{border-top:1px solid var(--border);padding-top:16px}.shared-kind{font-size:12px}.shared-note h3{font-size:17px;font-weight:600;line-height:1.3}.shared-note h4{font-size:14px;font-weight:600}.shared-note .button{margin-top:6px}.how{counter-reset:step;gap:16px;list-style:none}.how>li{counter-increment:step;grid-template-columns:24px 1fr;column-gap:12px;display:grid}.how>li:before{content:counter(step);border:1px solid var(--border);background:var(--tint-faint);width:24px;height:24px;color:var(--accent);border-radius:50%;grid-row:1/span 3;place-items:center;font-size:12px;font-weight:600;display:grid}.how>li>*{grid-column:2}.how strong{font-weight:600;line-height:24px}.how .chips{gap:6px;margin-top:8px}.how .chip{color:var(--text);padding:4px 11px;font-size:13px}.asks{flex-direction:column;align-items:flex-start;gap:6px;margin:8px 0 0;padding:0;list-style:none;display:flex}.asks li{border:1px solid var(--border);background:var(--fill-faint);color:var(--text);border-radius:12px 12px 12px 4px;padding:5px 11px;font-size:13px}.message{overflow-wrap:anywhere}.message.user{background:var(--tint);white-space:pre-wrap;border-radius:14px 14px 4px;align-self:flex-end;max-width:88%;padding:8px 12px}.message.agent{flex-direction:column;gap:8px;display:flex}.message.agent p{white-space:pre-wrap}.message.working{flex-direction:row;align-items:center;gap:8px}.message.from-version{align-self:center;font-size:12px}.tool{border:1px solid var(--border);background:var(--fill-faint);color:var(--text-soft);border-radius:10px;gap:8px;padding:7px 10px;font-size:13px;display:flex}.tool-mark{text-align:center;width:16px;color:var(--success);flex:none}.tool.failed .tool-mark{color:var(--danger)}.tool-mark .building-mark{margin-top:2px}.thinking{font-size:12.5px;line-height:1.45}.thinking.live{align-items:flex-start;gap:8px;font-style:italic;display:flex}.thinking.live .building-mark{margin-top:1px}details.thinking summary{cursor:pointer;color:var(--muted)}details.thinking p{color:var(--muted);white-space:pre-wrap;margin-top:4px}.tool ul{color:var(--muted);margin:4px 0 0;padding-left:16px}.composer{border:1px solid var(--border);background:var(--input);cursor:text;border-radius:10px;flex:none;align-items:flex-end;display:flex}.composer:focus-within{border-color:var(--accent)}.composer textarea{background:0 0;border:0;border-radius:0;flex:1;min-width:0;padding:10px 4px 10px 12px}.composer .icon-button{width:32px;height:32px;margin:6px;font-size:18px}.composer .icon-button svg{stroke-width:2px}.composer .icon-button.primary{background:var(--accent-strong);color:#fff;border-color:#0000}.composer .icon-button.primary:hover:not(:disabled){background:var(--accent)}.composer.compact{border-radius:20px}.composer.compact textarea{max-height:116px;padding:8px 4px 8px 14px;font-size:16px;line-height:22px}.composer.compact textarea::placeholder{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.composer.compact .icon-button{margin:3px}.session-list{flex:1;min-height:0;margin:0;padding:0;list-style:none;overflow-y:auto}.session-list li{align-items:center;gap:6px;padding-right:6px;display:flex}.session-list li:first-child{border-top-left-radius:10px;border-top-right-radius:10px}.session-list li:last-child{border-bottom-right-radius:10px;border-bottom-left-radius:10px}.session-list li:hover,.session-list li.current{background:var(--hover)}.session-open{text-align:left;background:0 0;border:0;flex-direction:column;flex:1;min-width:0;padding:8px 10px;font-size:12px;display:flex}.session-title{text-overflow:ellipsis;white-space:nowrap;font-size:14px;overflow:hidden}.session-list li.current .session-title{color:var(--accent)}.session-list-empty{flex:1}.button{border:1px solid var(--border);background:var(--hover);border-radius:10px;padding:8px 14px;font-weight:600}.button:hover:not(:disabled){background:var(--hover-strong)}.button.small{border-radius:8px;padding:4px 10px;font-size:13px}.button.active{border-color:var(--accent);color:var(--accent)}.button.primary{background:var(--accent-strong);color:#fff;border-color:#0000}.button.primary:hover:not(:disabled){background:var(--accent)}.icon-button{border:1px solid var(--border);background:var(--hover);border-radius:50%;flex:none;place-items:center;width:36px;height:36px;padding:0;font-size:20px;line-height:1;display:inline-grid}.icon-button:hover:not(:disabled){background:var(--hover-strong)}.icon-button.small{width:26px;height:26px;font-size:16px}.icon-button.flat{background:0 0;border:none;width:32px;height:32px;font-size:28px}.chips{flex-wrap:wrap;gap:8px;display:flex}.chip{border:1px solid var(--border);background:0 0;border-radius:999px;padding:5px 12px}.chip:hover{background:var(--fill)}.chip.active{border-color:var(--accent);color:var(--accent)}.notice{border:1px solid var(--border);background:var(--fill-faint);color:var(--muted);overflow-wrap:anywhere;border-radius:10px;padding:10px 12px;font-size:13px}.notice.error{color:var(--danger);background:#ff808014;border-color:#ff808066}.notice ul{margin:6px 0 0;padding-left:18px}.stage{background:radial-gradient(ellipse at calc(50% + var(--covered) / 2) 38%, #1a2440 0%, #0d1324 55%, var(--bg) 100%);flex:1;grid-template:minmax(0,1fr)/minmax(0,1fr);min-width:0;display:grid}.stage>*{grid-area:1/1}:root[data-theme=light] .stage{background:#fff}.panel{border:1px solid var(--border);background:var(--panel);backdrop-filter:blur(14px);box-shadow:0 12px 40px var(--shadow);border-radius:24px}.stage-top{z-index:100;margin:calc(16px + var(--safe-top)) calc(16px + var(--safe-right)) 0 calc(var(--covered) + 16px);max-height:calc(100% - 258px - var(--safe-top) - var(--safe-bottom));pointer-events:none;grid-template-rows:auto minmax(0,1fr);grid-template-columns:minmax(0,1fr) minmax(300px,auto);align-self:start;gap:12px 20px;display:grid}.stage-top>*{pointer-events:auto}.spec-toggle{background:var(--panel);backdrop-filter:blur(14px)}.node-card{grid-area:2/2;place-self:start end;width:300px;min-height:0;max-height:100%;padding:14px 16px;overflow-y:auto}.node-card header,.spec-editor header{align-items:center;gap:10px;display:flex}.node-card h3,.spec-editor h3{flex:1;font-size:15px}.node-card p{color:var(--text-soft);margin-top:8px}.swatch{border-radius:50%;flex:none;width:12px;height:12px}.node-card ul{border-top:1px solid var(--border);margin:10px 0 0;padding:8px 0 0;list-style:none}.node-card li button{text-align:left;background:0 0;border:0;border-radius:6px;width:100%;padding:3px 6px}.node-card li button:hover{background:var(--fill)}.direction{width:20px;color:var(--muted);display:inline-block}.spec-editor{width:440px;padding:calc(18px + var(--safe-top)) calc(16px + var(--safe-right)) calc(16px + var(--safe-bottom)) 16px;border-left:1px solid var(--border);background:var(--surface-sheet);flex-direction:column;flex:none;gap:10px;display:flex}.spec-editor textarea{resize:none;white-space:pre;tab-size:2;flex:1;min-height:0;font:12px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace}.spec-editor .notice{max-height:140px;overflow-y:auto}.spec-editor footer{gap:8px;display:flex}.spec-editor .spec-guide{color:var(--accent);font-size:13px;text-decoration:none}.spec-editor .spec-guide:hover{text-decoration:underline}.versions{flex-direction:column;flex:none;gap:6px;font-size:13px;display:flex}.versions h4{font-size:13px}.version-list{max-height:136px;margin:0;padding:0;list-style:none;overflow-y:auto}.version{text-align:left;background:0 0;border:0;border-radius:8px;justify-content:space-between;gap:10px;width:100%;padding:6px 10px;display:flex}.version .muted{font-size:12px}.version:hover:not(:disabled),.version[aria-current=true]{background:var(--hover)}.version[aria-current=true]{color:var(--accent)}.stepbar{--free:calc(100% - var(--covered) - var(--safe-right));--width:min(640px, calc(var(--free) - 92px));z-index:100;margin:0 0 calc(20px + var(--safe-bottom)) calc(var(--covered) + min(calc(var(--free) / 2 - var(--width) / 2), calc(var(--free) - 76px - var(--width))));width:var(--width);grid-area:1/1;place-self:end start;align-items:center;gap:14px;padding:14px 16px;display:flex;position:relative}.fine-print{color:#94a1bf8c;text-align:center;text-shadow:0 1px 3px #050810cc;pointer-events:none;font-size:11px;line-height:1.3;position:absolute;bottom:calc(100% + 14px);left:0;right:0}:root[data-theme=light] .fine-print{color:#4a5672bf;text-shadow:none}.stepbar-body{text-align:center;flex:1;min-width:0}.stepbar h2{letter-spacing:-.01em;font-size:17px}.stepbar p{color:var(--text-soft);margin-top:8px}.stepbar-text{transition:transform .2s,opacity .2s}.stepbar-text.pulled{transition:none}.icon-button.on{border-color:var(--accent);color:var(--accent)}.stage-bottom{display:contents}.view-controls{z-index:101;margin:0 calc(16px + var(--safe-right)) calc(20px + var(--safe-bottom)) 0;flex-direction:column;grid-area:1/1;place-self:end;gap:10px;display:flex}.view-controls .icon-button{background:var(--panel);backdrop-filter:blur(14px);width:44px;height:44px;box-shadow:0 6px 20px var(--shadow-soft);place-items:center;display:grid;position:relative}.view-controls .icon-button:hover{background:var(--control-hover)}.view-controls .building.wait{stroke-width:3.6px;width:16.5px}.view-controls .tip{border:1px solid var(--border);background:var(--surface-raised);box-shadow:0 6px 20px var(--shadow-soft);color:var(--text);white-space:nowrap;opacity:0;pointer-events:none;border-radius:8px;padding:4px 10px;font-size:13px;line-height:1.5;transition:opacity .12s;position:absolute;top:50%;right:calc(100% + 10px);transform:translateY(-50%)}.view-controls .icon-button:hover .tip,.view-controls .icon-button:focus-visible .tip{opacity:1}.stepbar .narration-error{color:var(--danger);overflow-wrap:anywhere;margin-top:6px;font-size:12px}.step-dots{justify-content:center;gap:4px;margin-top:8px;display:flex}.step-dots button{background:0 0;border:0;width:18px;height:14px;padding:0}.step-dots button:before{content:"";background:var(--line);border-radius:50%;width:8px;height:8px;margin:auto;transition:background .2s,transform .2s;display:block}.step-dots button.current:before{background:var(--accent);transform:scale(1.3)}.welcome{margin:0 0 var(--sheet) var(--covered);padding:calc(24px + var(--safe-top)) calc(24px + var(--safe-right)) calc(24px + var(--safe-bottom)) 24px;text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:10px;display:flex}.welcome>:not(.logo){animation:.7s cubic-bezier(.2,.7,.2,1) both rise}.landing.settled .welcome>:not(.logo){animation:none}.at-session 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var(--safe-right)) calc(32px + var(--safe-bottom)) 24px;opacity:0;flex:none;margin:0 auto}.gallery.shown{opacity:1;animation:.7s cubic-bezier(.2,.7,.2,1) both rise}.gallery h2{color:var(--muted);text-align:center;margin-bottom:12px;font-size:13px;font-weight:500}.gallery-grid{grid-template-columns:repeat(auto-fill,minmax(min(210px,50% - 6px),1fr));gap:12px;display:grid}.gallery-card{border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:14px;text-decoration:none;transition:border-color .2s;display:block;overflow:hidden}.gallery-card:hover,.gallery-card:focus-visible{border-color:var(--line)}.gallery-card img,.gallery-card .gallery-picture{aspect-ratio:3/2;object-fit:cover;background-color:var(--surface);width:100%;display:block}.gallery-title{text-overflow:ellipsis;white-space:nowrap;padding:8px 12px 9px;font-size:13px;display:block;overflow:hidden}.landing-footer{padding:0 calc(24px + var(--safe-right)) calc(16px + var(--safe-bottom)) 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