:root{--ink:#23314a;--muted:#758298;--line:#dde4ef;--paper:#fff;--canvas:#f1f4fa;--purple:#7561d8;--blue:#397aca;--teal:#158f95;--amber:#b77b29;--ease:cubic-bezier(.22,1,.36,1);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--canvas);font-size:14px}
*{box-sizing:border-box}body{margin:0;min-width:1100px}button,input,select,textarea{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid #8a79e8;outline-offset:3px}button:disabled{opacity:.4;cursor:default}a{color:inherit;text-decoration:none}h1,h2,h3,p{margin:0}.mono,.mode-number,.code-id{font-family:"SFMono-Regular",Consolas,monospace;font-variant-numeric:tabular-nums}.button{border:1px solid var(--line);border-radius:8px;background:#fff;padding:9px 13px;white-space:nowrap;transition:background .2s,box-shadow .2s,transform .2s}.button:hover{background:#f4f3ff;border-color:#c5bcef;transform:translateY(-1px)}.button.primary{background:var(--ink);color:white;border-color:var(--ink)}.button.accent{background:#eaf7f6;color:#116e75;border-color:#c4e6e4}.button.small{padding:5px 9px;font-size:12px}.button.selected{background:#edf0fa;border-color:#a8b8d2}.eyebrow{font-size:10px;letter-spacing:.13em;color:var(--muted);display:block;font-weight:650}.app-header{height:77px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 28px;gap:29px}.brand{font-size:25px;font-weight:800;letter-spacing:-1px;display:flex;align-items:center;gap:20px}.brand span{font-size:13px;font-weight:600;letter-spacing:0;border-left:1px solid var(--line);padding-left:20px}.project-title{display:grid;gap:4px}.project-title strong{font-size:14px;font-weight:550}.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}.demo-badge{color:#7d719f;background:#f4f1fa;border:1px solid #e7e0f5;padding:6px 9px;font-size:11px;border-radius:5px}.mode-nav{height:91px;display:flex;align-items:center;gap:9px;padding:14px 28px}.mode-button{position:relative;display:flex;align-items:center;gap:12px;text-align:left;padding:12px 20px;background:transparent;border:1px solid transparent;border-radius:12px;transition:background .35s,box-shadow .35s,border-color .35s}.mode-button strong{display:block;font-size:15px;font-weight:650}.mode-button small{display:block;color:var(--muted);font-size:11px;margin-top:4px}.mode-number{font-size:12px;color:#9aa5b8;transition:color .3s}.mode-button[aria-pressed=true]{background:#fff;border-color:var(--line);box-shadow:0 5px 15px #283d6510}.mode-button[aria-pressed=true] .mode-number{color:var(--purple)}.mode-button[aria-pressed=true]::after{content:"";position:absolute;left:20px;right:20px;bottom:-1px;height:3px;background:var(--purple);border-radius:2px}.mode-button[data-view=code][aria-pressed=true]::after{background:var(--blue)}.mode-button[data-view=outputs][aria-pressed=true]::after{background:var(--teal)}.context-picker{margin-left:auto;display:flex;align-items:center;gap:10px;font-size:12px}.context-picker label{color:var(--muted)}.context-picker select{border:1px solid var(--line);padding:8px;background:#fff;border-radius:7px;max-width:240px}#context-status{color:#988158;font-size:11px}
.workspace{height:calc(100vh - 208px);min-height:650px;position:relative;margin:0 24px;perspective:1600px}.stage{position:absolute;left:0;top:0;width:calc(100% - 212px);height:100%;background:var(--paper);border:1px solid var(--line);border-radius:17px;box-shadow:0 8px 30px #293c6310;overflow:hidden;transition:left .72s var(--ease),top .72s var(--ease),width .72s var(--ease),height .72s var(--ease),box-shadow .4s,transform .72s var(--ease);transform:translateZ(0)}.stage.active{z-index:3}.stage.peek{left:calc(100% - 196px);width:196px;height:calc(50% - 8px);z-index:1;box-shadow:0 3px 12px #293c6306;background:#fafbfe}.stage.peek.bottom{top:calc(50% + 8px)}.stage.peek:hover{box-shadow:0 12px 24px #293c6319;transform:translateX(-3px)}.stage-heading{height:100px;padding:22px 25px 18px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);transition:opacity .25s}.stage-heading h1{font-size:22px;letter-spacing:-.5px;line-height:1.5;font-weight:660}.stage-heading p{font-size:12px;color:var(--muted);margin-top:2px}.stage-heading .eyebrow{font-size:9px;margin-bottom:3px}.stage-content{height:calc(100% - 100px);opacity:1;transition:opacity .3s .16s}.peek .stage-heading,.peek .stage-content{opacity:0;visibility:hidden;pointer-events:none;transition:none}.stage-summary{position:absolute;inset:0;width:100%;height:100%;border:0;background:transparent;padding:24px 20px;text-align:left;display:none;flex-direction:column;gap:13px;overflow:hidden}.peek .stage-summary{display:flex;animation:summary-in .6s var(--ease)}.stage-summary h2{font-size:18px;line-height:1.4;font-weight:650}.stage-summary>p{font-size:11px;line-height:1.65;color:var(--muted)}.peek-label{font-size:10px;letter-spacing:.1em;color:var(--purple);font-weight:600}.code-stage .peek-label{color:var(--blue)}.output-stage .peek-label{color:var(--teal)}.summary-card{border:1px solid var(--line);background:white;border-radius:8px;padding:11px 9px;font-size:11px;line-height:1.6;position:relative}.summary-card strong{display:block;font-weight:600}.summary-card small{display:block;font-size:10px;color:var(--muted);margin-top:4px}.summary-card.selected{border-color:#b8aae9;background:#f8f6fd}.summary-code{display:flex;gap:5px;align-items:center;font-size:10px;flex-wrap:wrap}.summary-code span{padding:5px;background:#edf3fa;color:var(--blue);border-radius:4px}.summary-preview{aspect-ratio:3/2;border-radius:8px;flex-shrink:0;background-image:url(assets/demo-sheet.png);background-size:400% 200%;background-position:100% 0}.summary-open{margin-top:auto;font-size:12px;color:var(--ink);font-weight:600;border-top:1px solid var(--line);padding-top:12px}.app-footer{height:40px;display:flex;align-items:center;justify-content:space-between;padding:0 28px;gap:15px;font-size:10px;color:var(--muted)}#status{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:65%}
.view-tools{height:48px;padding:0 20px;border-bottom:1px solid #e9edf5;display:flex;align-items:center;gap:8px;background:#fcfdff}.view-tools .spacer{flex:1}.view-tools .tool-note{font-size:11px;color:var(--muted)}.text-button{border:0;background:transparent;padding:7px 10px;border-radius:6px;font-size:12px;color:var(--muted)}.text-button.active{background:#eeeafa;color:var(--purple)}.text-button:hover{background:#f0f3f8;color:var(--ink)}.tool-select{background:white;border:1px solid var(--line);border-radius:6px;padding:6px 8px;font-size:12px}.graph-view{height:calc(100% - 218px);min-height:290px;overflow:auto;position:relative;background-color:#f7f9fd;background-image:radial-gradient(#cbd4e5 .7px,transparent .7px);background-size:16px 16px;cursor:grab}.graph-view.dragging{cursor:grabbing}.graph-surface{position:relative;width:1100px;height:430px;transform-origin:top left}.graph-wrap{position:relative}.stage-band{position:absolute;top:0;bottom:0;border-right:1px dashed #dce2ef;background:#f5f2fb55;pointer-events:none}.stage-band span{display:block;font-size:12px;font-weight:600;padding:14px 20px;color:var(--purple)}.stage-band small{font-size:10px;font-weight:400;margin-left:12px}.stage-band.formal{background:#eef5fb55}.stage-band.formal span{color:var(--blue)}.stage-band.ablation{background:#fff8ed66;border:none}.stage-band.ablation span{color:var(--amber)}.research-node{position:absolute;width:228px;background:#fff;border:1px solid #dbe2ef;border-radius:10px;padding:13px 14px;box-shadow:0 3px 8px #26395a05;transition:box-shadow .25s,border-color .25s,opacity .3s,transform .3s}.research-node.selected{border-color:#8d78df;box-shadow:0 0 0 3px #b3a4e71b,0 7px 18px #55468b14;transform:translateY(-2px)}.research-node.dim{opacity:.24}.node-top{display:flex;align-items:center;justify-content:space-between;color:var(--purple);font-size:11px;margin-bottom:8px}.node-top small{font-size:10px;color:var(--muted)}.node-title{font-size:14px;font-weight:650;border:0;background:transparent;padding:0;text-align:left;line-height:1.45}.node-purpose{font-size:11px;color:var(--muted);margin:7px 0 10px}.node-signals{display:flex;gap:5px;flex-wrap:wrap}.signal{border:1px solid #dce9e8;border-radius:5px;background:#f2faf9;color:#23767a;padding:5px 6px;font-size:10px}.signal.report{background:#fbf6ee;color:#986d2d;border-color:#efe0c5}.node-judgment{font-size:10px;color:#8a7859;margin-top:10px;padding-top:8px;border-top:1px solid #eef0f6;line-height:1.6}.node-judgment b{font-weight:500}.node-collapse{float:right;border:0;background:none;color:#8c83ac;font-size:10px;padding:0}.research-node.compact .node-purpose,.research-node.compact .node-signals,.research-node.compact .node-judgment{display:none}.research-node.compact{padding:12px 14px}.research-node.task .node-top{color:var(--blue)}.research-node.ablation .node-top{color:var(--amber)}.relation-svg{position:absolute;inset:0;pointer-events:none;overflow:visible}.relation-svg>path{fill:none;stroke:#aaa2c2;stroke-width:1.4;transition:opacity .3s}.relation-svg>path.selected{stroke:var(--purple);stroke-width:2;stroke-dasharray:6 4;animation:trace-on .8s ease-out both}.relation-svg>path.consume{stroke:var(--teal);stroke-width:1.7;stroke-dasharray:5 4;animation:trace-on .9s ease-out both}.relation-svg>path.inherit{stroke:#8fa5c1;stroke-width:1.4}.evidence-tray{height:170px;border-top:1px solid var(--line);padding:16px 20px;background:white}.tray-heading{display:flex;gap:12px;align-items:center;font-size:12px;margin-bottom:12px}.tray-heading strong{font-size:13px}.tray-heading span{color:var(--muted);font-size:11px}.tray-heading button{margin-left:auto}.evidence-tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.evidence-tile{text-align:left;padding:12px;border:1px solid var(--line);border-radius:9px;background:#fcfdff;transition:transform .2s,box-shadow .2s;min-width:0}.evidence-tile:hover{transform:translateY(-3px);box-shadow:0 6px 12px #26395a12}.evidence-tile .tile-label{display:block;font-size:10px;color:var(--muted);cursor:pointer}.evidence-tile strong{display:block;font-size:13px;margin:6px 0;color:var(--blue)}.evidence-tile small{display:block;font-size:10px;line-height:1.6;color:var(--muted)}.evidence-tile:nth-child(2) strong{color:var(--teal)}.evidence-tile:nth-child(3) strong{color:var(--purple)}.evidence-tile:nth-child(4) strong{color:var(--amber)}
.code-scroll{position:relative;height:calc(100% - 48px);overflow:auto;background:#f8fafd}.lane-board{width:1110px;position:relative;min-height:700px;padding-top:4px}.lane{position:relative;border-bottom:1px solid var(--line);height:210px;padding-top:46px}.lane[data-kind=evaluation]{height:230px;background:#eef8f74d}.lane[data-kind=analysis]{height:190px;background:#f5f1fb55}.lane[data-kind=report]{height:185px;background:#fcf7ee77}.lane-title{position:absolute;left:20px;top:14px;display:flex;gap:13px;align-items:center;color:var(--blue);font-size:12px;font-weight:650}.lane-title small{font-size:10px;font-weight:400;color:var(--muted)}.lane[data-kind=evaluation] .lane-title{color:var(--teal)}.lane[data-kind=analysis] .lane-title{color:var(--purple)}.lane[data-kind=report] .lane-title{color:var(--amber)}.code-node{position:absolute;top:48px;width:238px;background:white;border:1px solid #cfddeb;border-top:3px solid var(--blue);border-radius:9px;box-shadow:0 3px 9px #26395a06;padding:12px;z-index:1;transition:opacity .3s,box-shadow .3s}.code-node.selected{box-shadow:0 0 0 3px #397aca18;border-color:#6698d4}.code-node.unrelated{opacity:.48}.code-node[data-kind=evaluation]{border-top-color:var(--teal);width:340px}.code-node[data-kind=analysis]{border-top-color:var(--purple);width:430px}.code-node[data-kind=report]{border-top-color:var(--amber);width:330px}.code-heading{display:flex;align-items:center;gap:7px}.code-heading button{border:0;padding:0;background:transparent;text-align:left;font-size:12px;font-weight:650}.code-id{font-size:10px;color:var(--blue)}.code-version{margin-left:auto;font-size:10px;color:var(--muted)}.code-description{font-size:10px;color:var(--muted);margin:7px 0;line-height:1.55}.execution-chips{display:flex;flex-wrap:wrap;gap:5px}.execution-chip{border:1px solid #dae4ee;background:#f5f8fb;border-radius:5px;padding:6px;font-size:10px;display:flex;gap:5px;align-items:center}.execution-chip small{font-size:9px;color:var(--muted)}.execution-chip.active{border-color:var(--teal);background:#e8f7f5;color:#116f74}.execution-chip:hover{background:#e8eef9}.execution-chip.planned{border-style:dashed}.code-node[data-kind=evaluation] .code-id{color:var(--teal)}.code-node[data-kind=analysis] .code-id{color:var(--purple)}.code-node[data-kind=report] .code-id{color:var(--amber)}.fold-row{border:0;border-top:1px solid #edf1f6;padding:7px 0 0;margin-top:9px;font-size:10px;background:transparent;color:var(--muted);width:100%;text-align:left}.run-expanded{border-top:1px solid #edf1f6;padding:7px 0 0;margin-top:7px;font-size:10px;line-height:1.8;color:var(--muted)}.run-expanded button{display:block;text-align:left;width:100%;border:0;border-radius:4px;background:transparent;padding:3px;color:var(--ink);font-size:10px}.run-expanded button:hover{background:#f2f5fb}.code-legend{display:flex;gap:12px;font-size:10px;color:var(--muted)}.code-legend span::before{content:"";display:inline-block;width:17px;border-top:2px solid #8fa5c1;margin-right:5px;vertical-align:middle}.code-legend span:nth-child(2)::before{border-top-style:dashed;border-color:var(--teal)}.dependency-note{font-size:11px;color:var(--teal);padding:11px 20px;background:#eaf6f4;border-top:1px solid #d0e6e3;position:sticky;bottom:0;z-index:4}
.comparison-controls{height:61px;padding:12px 20px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--line);background:#fbfcfe}.comparison-controls label{font-size:11px;color:var(--muted);display:flex;align-items:center;gap:6px}.comparison-controls .comparison-count{margin-left:auto;font-size:10px;color:var(--muted)}.comparison-scroll{height:calc(100% - 142px);overflow:auto;padding:0 20px 20px}.comparison-table{border-collapse:separate;border-spacing:0;width:100%;min-width:720px;table-layout:fixed}.comparison-table th,.comparison-table td{border-bottom:1px solid var(--line);border-right:1px solid #e9edf3;vertical-align:top;padding:13px 12px;text-align:left}.comparison-table th:first-child,.comparison-table td:first-child{width:170px;padding-left:0}.comparison-table th:last-child,.comparison-table td:last-child{border-right:0}.comparison-table th{position:sticky;top:0;background:white;z-index:1;font-weight:500;padding-top:17px;padding-bottom:12px}.column-title{font-size:12px;font-weight:650;display:block;margin-bottom:5px}.column-config{font-size:10px;color:var(--muted);line-height:1.65;font-weight:400}.column-role{display:inline-block;font-size:9px;color:#247f80;background:#edf7f6;padding:3px 5px;border-radius:4px;margin-top:4px}.column-role.warn{color:#987028;background:#fcf4df}.repeat-picker{max-width:100%;font-size:10px;border:1px solid var(--line);padding:4px;border-radius:4px;background:white;margin-top:5px}.sample-title{font-size:12px;display:block;margin-bottom:5px}.sample-instruction{font-size:10px;color:var(--muted);line-height:1.6;margin-bottom:12px}.image-tile{display:block;width:100%;aspect-ratio:3/2;background-image:url(assets/demo-sheet.png);background-size:400% 200%;border:0;border-radius:7px;position:relative;overflow:hidden;transition:box-shadow .25s,transform .25s}.image-tile:hover{transform:translateY(-2px);box-shadow:0 7px 14px #22374b25}.image-tile .image-tag{position:absolute;left:5px;bottom:5px;background:#fffffff0;color:#59677b;font-size:9px;padding:3px 5px;border-radius:3px}.sample-input{margin-top:7px}.artifact-source{font-size:10px;color:var(--blue);border:0;background:transparent;padding:9px 0 6px;display:block}.metric-row{display:flex;gap:8px;flex-wrap:wrap}.metric{background:#f5f8fb;border-radius:4px;padding:5px 6px;font-size:9px;color:var(--muted)}.metric b{font-size:11px;color:var(--ink);font-weight:600;margin-left:4px}.metric.missing{background:#fbf7ef;color:#9b824c}.empty-result{font-size:11px;color:#9aa4b4;padding:30px 0;line-height:1.7}.comparison-foot{height:81px;padding:14px 20px;border-top:1px solid var(--line);display:flex;align-items:center;gap:20px;background:#fbfcff}.comparison-foot>div{flex:1;min-width:0}.comparison-foot strong{display:block;font-size:12px;font-weight:600;margin-bottom:6px}.comparison-foot p{font-size:11px;color:var(--muted);line-height:1.5}.comparison-empty{padding:70px 30px;text-align:center;color:var(--muted);line-height:2}.comparison-empty strong{display:block;font-size:18px;color:var(--ink);margin-bottom:10px}
#reader{border:1px solid #d6dfed;border-radius:16px;width:min(1060px,88vw);max-height:89vh;padding:0;color:var(--ink);background:#fff;box-shadow:0 30px 100px #22314a40}#reader::backdrop{background:#23314a55;backdrop-filter:blur(4px)}#reader[open]{animation:reader-enter .32s var(--ease)}.reader-header{position:sticky;top:0;z-index:10;padding:12px 23px;background:#fcfdff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:15px}.reader-header>span{font-size:12px;color:var(--muted)}.reader-header>div{display:flex;gap:8px}.reader-body{padding:25px 30px 32px}.toast{position:fixed;bottom:52px;left:50%;transform:translate(-50%,12px);padding:12px 22px;background:#25354d;color:white;border-radius:8px;box-shadow:0 7px 20px #23314a22;opacity:0;transition:opacity .2s,transform .2s;pointer-events:none;z-index:40;font-size:12px}.toast.visible{opacity:1;transform:translate(-50%,0)}.blank-panel{padding:60px 40px;color:var(--muted);line-height:2}.report-library{display:grid;gap:12px}.report-library button{padding:22px;background:#fbfcff;border:1px solid var(--line);border-radius:10px;text-align:left}.report-library strong{display:block;font-size:17px}.report-library p{font-size:12px;color:var(--muted);line-height:1.8;margin-top:8px}.report-library small{color:var(--amber)}
@keyframes summary-in{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}@keyframes trace-on{from{opacity:0;stroke-dashoffset:70}to{opacity:1;stroke-dashoffset:0}}@keyframes reader-enter{from{opacity:0;transform:translateY(16px) scale(.98)}to{opacity:1;transform:none}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}

/* Desktop density: prioritize the working material over application chrome. */
.app-header{height:64px}.mode-nav{height:78px;padding-top:9px;padding-bottom:9px}.workspace{height:calc(100vh - 182px)}.stage-heading{height:84px;padding:16px 23px}.stage-heading h1{font-size:20px}.stage-content{height:calc(100% - 84px)}.stage-summary{padding:18px 16px;gap:10px}.stage-summary h2{font-size:16px}.summary-card{padding:8px 9px}.summary-card small{margin-top:2px}.summary-open{padding-top:9px}.summary-preview{max-height:112px}.code-node{top:36px;padding:10px}.code-description{margin:6px 0}.lane-title{top:11px}.execution-chip{padding:5px}.code-node[data-kind=analysis],.code-node[data-kind=report]{top:36px}.lane-board{min-height:0}.comparison-count{white-space:nowrap}

/* Trial interaction targets: graph scale stays >= .85, so 38 CSS px stays >= 32 screen px. */
.research-node,.code-node[data-select-code]{cursor:pointer}
.research-node:focus-visible,.code-node[data-select-code]:focus-visible{outline:3px solid #8a79e8;outline-offset:4px}
.research-node button{min-height:38px}
.node-collapse{min-width:48px;padding:7px 8px;font-size:11px;border-radius:6px;background:#f5f3fb}
.node-collapse:hover{background:#ebe6fa}
.node-title{width:100%;padding:6px 0}
.node-top{gap:6px;margin-bottom:3px}
.node-signals .signal{display:inline-flex;align-items:center;font-size:11px;padding:5px 8px}
.code-heading button{min-height:32px;flex:1}
.code-heading{align-items:center}
.code-details{display:inline-flex;align-items:center;min-height:32px;border:0;background:transparent;font-size:11px;color:var(--blue);padding:4px 0;margin-top:2px}
.code-details:hover{text-decoration:underline}
.execution-chip,.run-expanded button{min-height:32px;font-size:11px}
.execution-chip small{font-size:10px}
.fold-row{min-height:36px;padding:8px 5px;font-size:11px;border-radius:0 0 5px 5px}
.fold-row:hover{background:#f3f6fc;color:var(--ink)}
.run-expanded button{padding:6px}
.code-node.unrelated.selected{opacity:1}
.view-tools .button,.view-tools .text-button{min-height:32px}

/* The project foundation and the research canvas are peers inside this view. */
.research-layout{display:grid;grid-template-columns:var(--foundation-width,286px) minmax(0,1fr);height:100%;min-height:0;overflow:hidden}
.research-exploration{display:flex;flex-direction:column;min-width:0;min-height:0;overflow:hidden}
.research-exploration>.view-tools{flex:0 0 48px;overflow-x:auto;white-space:nowrap;padding:0 14px;gap:4px}
.research-exploration>.view-tools>*{flex-shrink:0}
.research-exploration>.graph-view{height:auto;min-height:220px;flex:1 1 auto;overscroll-behavior:contain}
.research-exploration>.evidence-tray{height:auto;flex:0 0 auto;padding:12px 14px;overflow-x:auto}
.research-exploration .tray-heading,.research-exploration .evidence-tiles{min-width:650px}
.research-exploration .tray-heading strong{max-width:270px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.research-exploration .evidence-tile{padding:10px}
.node-reference{margin-left:auto;color:#98a2b3;font-size:10px}
.exploration-node .node-top small{color:var(--teal)}
.exploration-node{border-top:3px solid #56a6a6}
.blank-panel h2{font-size:21px;line-height:1.5;margin:12px 0}
.blank-panel p{max-width:610px;font-size:13px}
.blank-panel .evidence-actions{margin-top:20px}