:root{--font-heading: "Mona Sans", "Hubot Sans", "Segoe UI", "Helvetica Neue", sans-serif;--font-body: "Mona Sans", "Segoe UI", "Helvetica Neue", sans-serif;--font-mono: "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;--bg: #0d1117;--bg-subtle: #131920;--bg-panel: #161b22;--bg-canvas: #1c2128;--bg-elevated: #21262d;--text: #e6edf3;--text-muted: #7d8590;--text-subtle: #484f58;--border: #30363d;--border-strong: #484f58;--accent: #8b5cf6;--accent-strong: #7c3aed;--accent-soft: rgba(139, 92, 246, .15);--danger: #f85149;--danger-soft: rgba(248, 81, 73, .15);--warning: #d29922;--warning-soft: rgba(210, 153, 34, .15);--success: #3fb950;--success-soft: rgba(63, 185, 80, .15);--pass: #3fb950;--pass-bg: rgba(63, 185, 80, .15);--fail: #f85149;--fail-bg: rgba(248, 81, 73, .15);--inconclusive: #d29922;--inconclusive-bg: rgba(210, 153, 34, .15);--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3), 0 1px 4px rgba(0, 0, 0, .2);--shadow-md: 0 4px 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0}@media(max-width:1160px){.app-content{height:auto;overflow:visible}.app-header{padding:.65rem var(--space-4) .5rem;flex-direction:row;align-items:center}.app-header__menu-btn{display:block}.sidebar{position:fixed;z-index:20;left:0;top:0;transform:translate(-100%);transition:transform .2s ease;box-shadow:var(--shadow-sm)}.sidebar--open{transform:translate(0)}.sidebar__backdrop{display:none;position:fixed;top:0;right:0;bottom:0;left:0;z-index:19;background:#0009}.sidebar__backdrop--visible{display:block}.app-layout{grid-template-columns:1fr;padding:var(--space-4)}.app-layout--dashboard{height:auto;max-height:none;overflow:visible}.inline-error{padding:0 var(--space-4)}}.field-label{display:block;margin:var(--space-3) 0 var(--space-2);color:var(--text);font-weight:600;font-size:.9rem}.field{width:100%;border:1px solid var(--border);border-radius:var(--radius-sm);padding:.56rem .72rem;background:var(--bg-canvas);color:var(--text);transition:border-color .12s 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var(--border);border-radius:var(--radius-sm);background:linear-gradient(90deg,rgba(139,92,246,.04) 1px,transparent 1px) 0 0 / 34px 34px,linear-gradient(rgba(139,92,246,.04) 1px,transparent 1px) 0 0 / 34px 34px,var(--bg-canvas);cursor:grab}.lineage-graph-scroll--panning{cursor:grabbing}.lineage-canvas{position:relative;isolation:isolate}.lineage-canvas--dragging-nodes,.lineage-canvas--dragging-nodes .lineage-node-card__main{cursor:grabbing;-webkit-user-select:none;user-select:none}.lineage-canvas--empty .lineage-graph{opacity:.22}.lineage-graph{display:block;position:absolute;top:0;right:0;bottom:0;left:0}.lineage-edge{fill:none;stroke:var(--text-subtle);stroke-width:1.7}.lineage-node-card{position:absolute;z-index:2;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg-panel);box-shadow:var(--shadow-sm);transition:border-color .14s ease,box-shadow .14s ease,transform .14s ease}.lineage-node-card:hover{border-color:var(--border-strong);transform:translateY(-1px)}.lineage-node-card:hover,.lineage-node-card:focus-within{z-index:40}.lineage-node-card--selected{border-color:var(--accent);box-shadow:inset 0 0 0 1px #8b5cf64d}.lineage-node-card--multi{border-color:color-mix(in srgb,var(--accent) 70%,var(--border));box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--accent) 35%,transparent)}.lineage-node-card--baseline{border-color:var(--success);box-shadow:inset 0 0 0 1px #3fb95040}.lineage-node-card--compare-a{border-color:var(--accent)}.lineage-node-card--compare-b{border-color:var(--danger)}.lineage-node-card__main{width:100%;text-align:left;background:transparent;border:0;cursor:pointer;padding:.55rem .62rem;display:grid;gap:.18rem;color:inherit}.lineage-node-card__title{font-family:var(--font-mono);font-size:.81rem;font-weight:700}.lineage-node-card__prompt{font-size:.78rem;color:var(--text-muted);line-height:1.35}.lineage-node-card__meta{margin-top:.1rem;font-size:.72rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em}.lineage-node-card__actions{position:absolute;right:.38rem;top:.36rem;display:none;gap:.2rem}.lineage-node-card:hover .lineage-node-card__actions,.lineage-node-card:focus-within .lineage-node-card__actions{display:flex}.lineage-icon-btn{position:relative;width:1.45rem;height:1.45rem;border-radius:999px;border:1px solid var(--border);background:var(--bg-panel);font-size:.82rem;cursor:pointer;color:var(--text)}.lineage-icon-btn:hover{border-color:var(--border-strong)}.lineage-icon-btn:after{content:attr(data-tooltip);position:absolute;left:50%;top:calc(100% + .35rem);transform:translate(-50%);min-width:150px;max-width:220px;padding:.3rem 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var(--border);background:var(--bg-canvas)}.score-row strong{font-family:var(--font-mono)}.compare-summary{display:flex;gap:var(--space-2);align-items:center}.preview-grid,.artifact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-3);margin-top:var(--space-4)}.preview-card{display:grid;gap:var(--space-2);border:1px solid var(--border);border-radius:var(--radius-md);padding:var(--space-3);background:var(--bg-panel)}.preview-card h4{font-size:.92rem}.preview-card__prompt{color:var(--text);font-size:.85rem;line-height:1.4;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-canvas);padding:var(--space-2)}.preview-card img{width:100%;border-radius:var(--radius-sm);object-fit:cover;min-height:160px;max-height:280px;border:1px solid var(--border)}.artifact-viewer{margin-top:var(--space-4);display:grid;gap:var(--space-3)}.artifact-viewer__controls{display:flex;gap:var(--space-2)}.preview-placeholder{min-height:160px;border-radius:var(--radius-sm);border:1px dashed var(--border);background:var(--bg-canvas);display:grid;place-items:center;color:var(--text-muted);font-size:.88rem;text-align:center;padding:var(--space-3)}.banner{margin-top:var(--space-3);padding:var(--space-3);border-radius:var(--radius-sm)}.banner--warning{background:var(--warning-soft);border:1px solid rgba(210,153,34,.4);color:var(--warning)}.explanation{margin-top:var(--space-4)}.explanation dl{margin:var(--space-3) 0 0;padding:0;display:grid;gap:var(--space-2)}.explanation-row{display:grid;grid-template-columns:1.2fr 1fr;gap:var(--space-2);border-bottom:1px solid var(--border);padding-bottom:var(--space-2)}.explanation dt{font-weight:600}.explanation dd{margin:0;text-align:right}.state--loading{display:flex;align-items:center;gap:var(--space-2)}.spinner{width:.95rem;height:.95rem;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.state--error{margin-bottom:var(--space-4);border:1px solid rgba(248,81,73,.3);background:var(--danger-soft)}.error-guidance{margin-top:var(--space-2);display:grid;gap:var(--space-2)}.error-guidance ul{margin:0;padding-left:1.1rem;display:grid;gap:.2rem}.toast-host{position:fixed;right:var(--space-4);top:var(--space-4);display:grid;gap:var(--space-2);z-index:30;max-width:340px}.toast{border-radius:var(--radius-sm);padding:var(--space-3);box-shadow:var(--shadow-sm);display:grid;gap:var(--space-2);border:1px solid transparent}.toast 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