:root{--serif: Georgia, serif;--sans: "Inter", system-ui, -apple-system, sans-serif;--mono: "JetBrains Mono", ui-monospace, Menlo, monospace;--content-mix: 0;--cosmic-mix: 0;--bg: #F8F7F4;--paper-light: #ffffff;--paper-deep: rgba(28, 22, 56, .42);--ink-light: #3D3A37;--ink-deep: #ece6d4;--ink-soft-light: #3D3A37;--ink-soft-deep: #d6cebc;--muted-light: #6A6560;--muted-deep: #a59c89;--muted2-light: #706A62;--muted2-deep: #8c8472;--rule-light: #E4E3DD;--rule-deep: rgba(232,226,210,.22);--rule-soft-light: #EFEEEA;--rule-soft-deep: rgba(232,226,210,.12);--accent-light: #3D3A37;--accent-deep: #ece3cd;--accent-ink-light: #F8F7F4;--accent-ink-deep: #1a1612;--chrome-light: rgba(248,247,244,.84);--chrome-deep: rgba(20,18,40,.55);--paper-inner-light: #ffffff;--paper-inner-deep: rgba(255,255,255,.06);--stroke-strong-light: #3D3A37;--stroke-strong-deep: #ece6d4;--paper: color-mix(in oklab, var(--paper-light) calc((1 - var(--content-mix)) * 100%), var(--paper-deep) calc(var(--content-mix) * 100%));--ink: color-mix(in oklab, var(--ink-light) calc((1 - var(--content-mix)) * 100%), var(--ink-deep) calc(var(--content-mix) * 100%));--ink-soft: color-mix(in oklab, var(--ink-soft-light) calc((1 - var(--content-mix)) * 100%), var(--ink-soft-deep) calc(var(--content-mix) * 100%));--muted: color-mix(in oklab, var(--muted-light) calc((1 - var(--content-mix)) * 100%), var(--muted-deep) calc(var(--content-mix) * 100%));--muted2: color-mix(in oklab, var(--muted2-light) calc((1 - var(--content-mix)) * 100%), var(--muted2-deep) calc(var(--content-mix) * 100%));--rule: color-mix(in oklab, var(--rule-light) calc((1 - var(--content-mix)) * 100%), var(--rule-deep) calc(var(--content-mix) * 100%));--rule-soft: color-mix(in oklab, var(--rule-soft-light) calc((1 - var(--content-mix)) * 100%), var(--rule-soft-deep) calc(var(--content-mix) * 100%));--accent: color-mix(in oklab, var(--accent-light) calc((1 - var(--content-mix)) * 100%), var(--accent-deep) calc(var(--content-mix) * 100%));--accent-ink: color-mix(in oklab, var(--accent-ink-light) calc((1 - var(--content-mix)) * 100%), var(--accent-ink-deep) calc(var(--content-mix) * 100%));--chrome: color-mix(in oklab, var(--chrome-light) calc((1 - var(--content-mix)) * 100%), var(--chrome-deep) calc(var(--content-mix) * 100%));--paper-inner:color-mix(in oklab, var(--paper-inner-light)calc((1 - var(--content-mix)) * 100%), var(--paper-inner-deep)calc(var(--content-mix) * 100%));--stroke-strong: color-mix(in oklab, var(--stroke-strong-light) calc((1 - var(--content-mix)) * 100%), var(--stroke-strong-deep) calc(var(--content-mix) * 100%));--cosmic-gradient: none;--cosmic-blend: normal;--domain-font: var(--sans);--domain-spacing: .32em;--domain-color: var(--muted2);--card-headline-font: var(--serif);--card-headline-weight: 400;--card-headline-size: 15px;--card-headline-color: var(--ink);--ink-active: #555555;--shadow-hover: 0 6px 16px -8px rgba(0, 0, 0, .12);--transition-base: .18s ease;--chip-bg: #EEECEA;--chip-bg-hover: #E4E3DE;--chip-border: rgba(0, 0, 0, .04)}*{box-sizing:border-box}::selection{background:#0000001f;color:inherit}:root{accent-color:var(--ink-active)}html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased;height:100vh;overflow:hidden;transition:background-color 1.2s ease}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:0;background:radial-gradient(ellipse 80% 50% at 50% 100%,rgba(40,30,20,.06),transparent 60%),radial-gradient(ellipse 60% 40% at 50% 0%,rgba(255,250,235,.5),transparent 60%);opacity:calc(1 - var(--cosmic-mix));transition:opacity .9s ease}body:after{content:"";position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:0;opacity:var(--cosmic-mix);background:var(--cosmic-gradient),url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.55 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");background-size:100% 100%,100% 100%,100% 100%,100% 100%,100% 100%,240px 240px;background-blend-mode:var(--cosmic-blend),overlay;transition:opacity .9s ease}.app{position:relative;z-index:1;height:100vh;width:100vw;overflow:hidden}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}.home{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:40px 24px;overflow-y:auto}.home-inner{max-width:720px;width:100%;display:flex;flex-direction:column;align-items:center;gap:0;text-align:center}.seeker{width:100%;display:flex;flex-direction:column;align-items:center;gap:18px}.wordmark{display:flex;flex-direction:column;align-items:center;gap:0;margin-bottom:32px}.wordmark h1{font-family:var(--serif);font-weight:400;font-size:clamp(56px,9vw,92px);line-height:1.08;margin:0;letter-spacing:-.02em;color:var(--ink);white-space:nowrap}.wordmark h1 em{font-style:italic;font-weight:400;color:var(--muted)}.wordmark .tagline{font-family:var(--sans);font-weight:500;font-size:13px;margin-top:14px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted2)}.clarification{width:100%;display:flex;flex-direction:column;gap:18px}.clarif-msg{font-family:var(--sans);font-size:15px;line-height:1.55;color:var(--ink);margin:0}.clarif-footer{display:flex;align-items:center;gap:20px}.clarif-skip{background:none;border:none;padding:0;font-family:var(--sans);font-size:13px;color:var(--muted2);cursor:pointer;transition:color var(--transition-base)}.clarif-skip:hover{color:var(--ink)}.clarif-back{background:none;border:none;padding:0;font-family:var(--sans);font-size:13px;color:var(--muted2);cursor:pointer;opacity:.55;transition:opacity var(--transition-base)}.clarif-back:hover{opacity:1}.spin{animation:spin .8s linear infinite;transform-origin:center}.suggestions{display:flex;flex-direction:column;gap:6px;width:100%;align-items:center}.suggestions-label{font-family:var(--domain-font);font-size:10px;letter-spacing:var(--domain-spacing);text-transform:uppercase;font-weight:600;color:var(--muted2);margin-bottom:2px}.suggestions-label--quiet{font-family:var(--sans);font-size:11px;letter-spacing:.06em;text-transform:none;font-weight:400;color:var(--muted3, rgba(0, 0, 0, .32));margin-bottom:4px}.sugg-row{display:flex;gap:6px;flex-wrap:wrap;justify-content:center;max-width:100%}.sugg-row .chip{font-size:13px;font-weight:400;padding:6px 14px;background:transparent;color:var(--muted2);border:1px solid rgba(0,0,0,.08);min-width:0;flex-shrink:1;overflow:hidden;text-overflow:ellipsis}.sugg-row .chip:hover{background:transparent;color:var(--muted);border-color:#00000029}.home-history{width:100%;max-width:560px;margin:28px auto 0;padding:0 4px;animation:home-history-fade .6s ease .18s backwards;opacity:0;animation-fill-mode:forwards}@keyframes home-history-fade{to{opacity:1}}.home-history-label{font-family:var(--domain-font);font-size:10px;letter-spacing:var(--domain-spacing);text-transform:uppercase;font-weight:600;color:var(--muted2);margin-bottom:10px;padding-left:12px}.home-history-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}.home-history-item{display:inline-flex;align-items:baseline;gap:8px;text-align:center;padding:8px 14px;background:transparent;border:none;border-radius:8px;font-family:var(--sans);font-size:14px;color:var(--muted);cursor:pointer;transition:background .12s ease,color .12s ease;white-space:nowrap}.home-history-item:hover{background:var(--rule-soft);color:var(--ink)}.home-history-item:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.home-history-topic{font-weight:400;color:var(--muted2)}.home-history-tangent{color:var(--muted2);opacity:.75}.home-history-sep{color:var(--muted2);opacity:.4;font-weight:400}.home-history-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;align-items:center;gap:2px}.preview-tree{width:100%;max-width:420px;margin:32px auto 0;opacity:0;animation:preview-tree-fade .9s ease .24s forwards}@keyframes preview-tree-fade{to{opacity:1}}.preview-tree-edge{fill:none;stroke:var(--rule);stroke-width:1px;stroke-linecap:round;stroke-linejoin:round}.preview-tree-node{fill:var(--paper);stroke:var(--ink-soft);stroke-width:1.2px}.preview-tree-node--root{fill:var(--ink-soft);stroke:var(--ink-soft)}.preview-tree-label{font-family:var(--sans);font-size:11px;fill:var(--muted2);letter-spacing:.01em}.preview-tree-label--root{fill:var(--ink);font-weight:500}.chip{font-family:var(--sans);font-weight:500;font-size:15px;padding:10px 18px;background:var(--chip-bg);border:1px solid var(--chip-border);border-radius:999px;color:var(--ink-light);white-space:nowrap;cursor:pointer;transition:background .12s ease,border-color .12s ease,color .12s ease}.chip:hover{background:var(--chip-bg-hover);border-color:#00000014;color:var(--ink)}.chip:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.ta-wrap{width:100%;max-width:640px;position:relative;display:flex;align-items:center;margin:0 auto}.ta{flex:1;min-width:0;height:64px;padding:0 64px 0 28px;background:#fffdf8;border:1px solid var(--rule);border-radius:999px;box-shadow:0 2px 12px #0000000f;font-family:var(--sans);font-size:18px;font-weight:400;font-style:normal;color:var(--ink);outline:none;transition:border-color var(--transition-base),box-shadow var(--transition-base);line-height:1}.ta::placeholder{color:var(--muted2)}.ta:hover{border-color:#00000047}.ta:focus{border-color:var(--ink-active);box-shadow:0 2px 14px #00000014}.ta-shuffle-left{position:absolute;left:10px}.ta-submit-right{position:absolute;right:12px;top:12px}.ta-shuffle{width:32px;height:32px;padding:6px;margin:-6px;border-radius:999px;background:transparent;border:1px solid var(--rule);color:var(--ink-soft);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background .16s ease,border-color .16s ease,color .16s ease}.ta-shuffle:hover{background:var(--paper-inner);border-color:var(--ink-active);color:var(--ink-active)}.ta-submit{width:40px;height:40px;border-radius:999px;background:transparent;color:var(--ink-soft);border:1px solid var(--rule);font-family:var(--serif);font-size:16px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background .16s ease,border-color .16s ease,color .16s 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.22s ease,box-shadow var(--transition-base)}.btn-shuffle-secondary:hover{border-color:var(--ink-active);color:var(--ink-active);transform:rotate(-12deg);box-shadow:var(--shadow-hover)}.map-view{position:relative;width:100vw;height:100vh;overflow:hidden;cursor:grab;touch-action:none}.map-view.dragging{cursor:grabbing}.map-canvas{position:absolute;left:0;top:0;transform-origin:0 0;will-change:transform}.session-nav-bg{position:fixed;top:0;left:0;right:0;height:80px;background:var(--bg);border-bottom:1px solid rgba(0,0,0,.06);z-index:7}.nav-wordmark{position:fixed;top:28px;left:28px;z-index:8;font-family:Georgia,serif;font-weight:400;font-size:17px;color:var(--ink);letter-spacing:-.01em;background:none;border:none;padding:0;margin:0;cursor:pointer;pointer-events:auto;transition:opacity .16s ease}.nav-wordmark:hover{opacity:.6}.map-top{position:fixed;top:18px;left:50%;transform:translate(-50%);z-index:8;display:flex;align-items:center;gap:10px;background:var(--paper);border:.5px solid 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.map-top-clear{opacity:1;pointer-events:auto}.map-top-shuffle,.map-top-shuffle:hover{border:none}.map-top-clear:hover{background:var(--paper-inner);border-color:var(--ink-active);color:var(--ink-active)}.map-top-actions{display:flex;align-items:center;gap:2px;flex-shrink:0}.map-top-divider{flex-shrink:0;width:1px;height:18px;background:var(--rule);align-self:center;margin-left:-4px}.map-top-clear--x{width:22px;height:22px;padding:4px;border-color:transparent;color:var(--ink-soft)}.map-top.has-text .map-top-clear--x{opacity:.75}.map-top.has-text .map-top-clear--x:hover{border-color:transparent;background:var(--paper-inner);opacity:1}.map-top-submit{flex-shrink:0;width:30px;height:30px;padding:6px}.map-top-submit[data-active="1"]{background:var(--ink-active);color:#fff;border-color:var(--ink-active)}.map-top-prefix{font-family:var(--mono);font-size:9px;letter-spacing:.28em;text-transform:uppercase;color:var(--muted2)}.map-top-topic{font-family:var(--sans);font-style:normal;font-size:16px;font-weight:400;color:var(--ink);flex:1;min-width:0;padding-left:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.map-top-topic-static{cursor:text;transition:padding-left .12s ease}.map-top-topic-input{background:transparent;border:none;outline:none;padding:0 0 0 4px;margin:0;flex:1;min-width:80px;caret-color:var(--ink);font-family:var(--sans);font-size:16px;font-weight:400;font-style:normal;color:var(--ink);transition:padding-left .12s ease}.map-top-topic-input::placeholder{font-family:var(--sans);font-style:normal;font-size:15px;color:var(--muted2)}.map-top-sep{width:1px;height:20px;background:var(--rule)}.map-top-btn{font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-soft);padding:6px 12px;border-radius:999px;transition:background var(--transition-base)}.map-top-btn:hover{background:var(--paper-inner)}.map-rail{position:fixed;right:18px;top:18px;z-index:8;display:flex;flex-direction:column;gap:6px;align-items:stretch}.map-rail-group{display:flex;flex-direction:column;background:var(--chrome);border:1px solid var(--rule);border-radius:14px;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);overflow:hidden}.map-rail-btn{width:38px;height:38px;display:flex;align-items:center;justify-content:center;color:var(--ink-soft);border-bottom:1px solid var(--rule-soft);transition:background var(--transition-base),color var(--transition-base);font-family:var(--mono);font-size:14px}.map-rail-btn:last-child{border-bottom:0}.map-rail-btn:hover{background:var(--paper-inner);color:var(--ink)}.map-rail-saved{width:38px;height:38px;background:var(--chrome);border:1px solid var(--rule);border-radius:999px;display:flex;align-items:center;justify-content:center;color:var(--ink-soft);position:relative;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.map-rail-saved-count{position:absolute;bottom:-4px;right:-4px;min-width:16px;height:16px;padding:0 4px;background:var(--ink);color:var(--paper);font-family:var(--mono);font-size:9px;border-radius:999px;display:flex;align-items:center;justify-content:center}.map-depth{position:fixed;bottom:18px;left:50%;transform:translate(-50%);z-index:8;display:flex;align-items:center;gap:14px;background:var(--chrome);border:1px solid var(--rule);padding:8px 18px;border-radius:999px;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}.map-depth strong{color:var(--ink);font-weight:500}.node{position:absolute;width:260px;background:var(--paper);border:1px solid var(--rule);border-radius:12px;padding:16px 18px 18px;box-shadow:0 12px 28px -22px #281e1440,0 0 calc(60px * var(--cosmic-mix)) rgba(0,0,0,calc(.18 * var(--cosmic-mix)));-webkit-backdrop-filter:blur(calc(20px * var(--cosmic-mix))) saturate(calc(100% + 40% * var(--cosmic-mix)));backdrop-filter:blur(calc(20px * var(--cosmic-mix))) saturate(calc(100% + 40% * var(--cosmic-mix)));cursor:pointer;transition:background .9s ease,border-color .9s ease,box-shadow .9s ease,transform .2s ease;-webkit-user-select:none;user-select:none;transform-origin:center}@keyframes nodeBloom{0%{opacity:0;transform:scale(.6)}to{opacity:1;transform:scale(1)}}.node:hover{transform:scale(1.03);z-index:2}.node[data-active="1"],.node:focus,.node:focus-visible{border:2px solid var(--ink);outline:none;box-shadow:0 14px 30px -16px #6e4f2a59,0 0 calc(60px * var(--cosmic-mix)) rgba(0,0,0,calc(.28 * var(--cosmic-mix)))}.node[data-bookmarked="1"]:after{content:"";position:absolute;top:-4px;right:-4px;width:12px;height:12px;border-radius:999px;background:#888;box-shadow:0 0 0 2px var(--bg)}.node-domain{font-family:var(--domain-font);font-size:9px;letter-spacing:var(--domain-spacing);text-transform:uppercase;color:var(--domain-color);margin-bottom:9px;white-space:nowrap;display:inline-flex;align-items:center;padding:3px 8px;border:1px solid var(--rule);border-radius:999px}.node-headline{font-family:var(--card-headline-font);font-weight:var(--card-headline-weight);font-size:var(--card-headline-size);line-height:1.35;color:var(--card-headline-color);margin:0;white-space:normal}.node-loading{display:flex;flex-direction:column;gap:8px}.node-loading .sk{background:linear-gradient(90deg,color-mix(in oklab,transparent,var(--ink) 9%),color-mix(in oklab,transparent,var(--ink) 22%),color-mix(in oklab,transparent,var(--ink) 9%));background-size:200% 100%;animation:shimmer 1.6s linear infinite;border-radius:4px;height:16px}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.node-expanded{width:320px;max-height:68vh;overflow-y:auto;overflow-x:hidden;padding:18px 22px 20px;cursor:default;box-shadow:0 20px 60px -16px #00000047,0 0 0 1px var(--ink-active);-webkit-overflow-scrolling:touch;border-color:var(--ink-active)}.node-close{position:absolute;top:12px;right:12px;width:24px;height:24px;border-radius:999px;display:flex;align-items:center;justify-content:center;color:var(--muted);transition:background .16s ease}.node-close:hover{background:var(--paper-inner);color:var(--ink)}.node-expanded-headline{font-family:var(--serif);font-weight:400;font-size:20px;line-height:1.25;letter-spacing:-.01em;color:var(--ink);margin:10px 0 14px}.node-expanded-lede{font-family:var(--serif);font-style:italic;font-size:13.5px;line-height:1.5;color:#5e5a55;margin:0 0 12px;padding-bottom:10px;border-bottom:1px solid var(--rule-soft)}.node-expanded-body{font-family:var(--serif);font-size:13px;line-height:1.68;color:var(--muted);margin:0 0 10px}.node-expanded-tangents{margin-top:16px;padding-top:14px;border-top:1px solid var(--rule)}.branch-stub:focus,.branch-stub:focus-visible{border-color:var(--ink-active);border-style:solid;outline:none;color:var(--ink);background:var(--paper);box-shadow:0 0 0 1px var(--ink-active)}.branch-stub{position:absolute;width:max-content;max-width:220px;padding:5px 14px;background:transparent;border:1px dashed #b5b0aa;border-radius:999px;font-family:var(--sans);font-style:normal;font-weight:400;font-size:13px;color:var(--muted);text-align:center;transition:border-color var(--transition-base),color var(--transition-base),background var(--transition-base),transform var(--transition-base);display:flex;align-items:center;-webkit-user-select:none;user-select:none;transform-origin:center}.branch-stub:hover{border-style:solid;border-color:var(--ink-active);color:var(--ink);background:var(--paper);box-shadow:var(--shadow-hover)}.branch-stub-text{white-space:normal}.connectors{position:absolute;left:0;top:0;pointer-events:none;overflow:visible}.connector{fill:none;stroke-width:1;transition:stroke .4s ease,opacity .4s ease,stroke-width .4s ease}@keyframes connectorDraw{0%{stroke-dashoffset:1}to{stroke-dashoffset:0}}.connector.active{stroke:var(--stroke-strong);stroke-width:1.5;opacity:1}.connector.visited{stroke:#8c877f;stroke-width:1;opacity:.6}.connector.inactive{stroke:#b0aba4;stroke-width:1;opacity:.35}.connector.stub{stroke:#b0aba4;stroke-dasharray:4 4;opacity:.35}.card-overlay-back{position:fixed;top:0;right:0;bottom:0;left:0;z-index:12;background:color-mix(in oklab,var(--bg) 60%,black 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