/* Research walkthrough: intrinsic layout, shared alignment, quiet motion. */
.rw{--rw-blue:#285d85;--rw-red:#b45542;--rw-purple:#71608b;--rw-line:#d5dde2;border:1px solid var(--rw-line);border-radius:8px;background:#fff;overflow:hidden;color:#27333d;font:16px/1.5 Arial,Helvetica,sans-serif}.rw *{box-sizing:border-box}.rw p,.rw h3,.rw h4,.rw figure{margin:0}.rw button{font:inherit;cursor:pointer}.rw-toolbar{padding:12px 22px;border-bottom:1px solid var(--rw-line);display:flex;align-items:center;justify-content:space-between;gap:18px}.rw-toolbar>span{font-size:14px;font-weight:600}.rw-controls{display:flex;align-items:center;gap:16px;font-size:13px;color:#64717a}.rw-controls label{display:flex;align-items:center;gap:6px}.rw-controls input{accent-color:var(--rw-blue)}.rw-play{border:1px solid #c6d0d6;border-radius:4px;background:#fff;padding:5px 12px;min-width:76px;min-height:34px;font-size:14px!important;color:#27333d}.rw-nav{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));border-bottom:1px solid var(--rw-line)}.rw-nav button{position:relative;text-align:left;background:#fff;border:0;border-right:1px solid #e5eaed;padding:14px 16px;color:#6a7780;line-height:1.35;min-height:69px}.rw-nav button:last-child{border-right:0}.rw-nav span{display:block;font-size:12px;letter-spacing:.07em;margin-bottom:3px}.rw-nav strong{font-size:14px;font-weight:600}.rw-nav button[aria-pressed=true]{color:var(--rw-blue);background:#f2f6f8}.rw-nav button[aria-pressed=true]:after{content:'';position:absolute;bottom:0;left:16px;right:16px;height:3px;background:var(--rw-blue)}.rw-panel[hidden]{display:none}.rw-header{padding:24px 28px 20px;display:grid;grid-template-columns:.95fr 1.05fr;gap:32px;align-items:start;border-bottom:1px solid #e7ecef}.rw-header h3{font-size:23px!important;font-weight:600;letter-spacing:-.025em;line-height:1.25;max-width:430px}.rw-header ul{margin:0;padding-left:19px;color:#576570;font-size:15px;line-height:1.55}.rw-header li+li{margin-top:5px}.rw-scene{padding:26px 28px;min-height:340px;display:flex;flex-direction:column;justify-content:center;gap:20px;background:#fcfdfd}.rw-context{font-size:14px;text-align:center;color:#596874}.rw-context strong{font-weight:600;color:#27333d}.rw-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:stretch}.rw-three{display:grid;grid-template-columns:minmax(0,1fr) 40px minmax(0,1fr);align-items:center;gap:16px}.rw-three.wide{grid-template-columns:minmax(0,1fr) 34px minmax(0,1.1fr) 34px minmax(0,.85fr);gap:12px}.rw-object{border:1px solid #ccd6dd;border-radius:6px;background:#fff;padding:18px;min-width:0}.rw-object h4{font-size:16px;font-weight:600;letter-spacing:-.01em;line-height:1.3}.rw-object p{font-size:14px;color:#64717a;margin-top:8px}.rw-object.blue{border-top:3px solid var(--rw-blue)}.rw-object.red{border-top:3px solid var(--rw-red)}.rw-object.purple{border-top:3px solid var(--rw-purple)}.rw-name{display:flex;align-items:center;gap:9px;font-weight:600;font-size:16px;color:#27333d}.rw-name .icon{width:24px;height:24px}.rw-agent-note{display:block;font-size:13px;color:#64717a;margin-top:5px}.rw-label{font-size:12px!important;text-transform:uppercase;letter-spacing:.07em;color:#74818b!important;margin:0 0 10px!important;font-weight:600}.rw-arrow{display:grid;place-items:center;color:#91a0aa;font-size:26px;align-self:center;line-height:1}.rw-lane{display:grid;grid-template-columns:170px 36px minmax(0,1fr);gap:18px;align-items:center;width:min(100%,760px);margin:auto}.rw-pill{display:inline-flex;align-items:center;gap:8px;border:1px solid currentColor;border-radius:4px;padding:5px 10px;font-size:14px;white-space:nowrap;background:#fff}.rw-blue{color:var(--rw-blue)}.rw-red{color:var(--rw-red)}.rw-purple{color:var(--rw-purple)}.rw-chip{display:inline-grid;place-items:center;min-width:26px;height:26px;border:1px solid currentColor;border-radius:4px;font-size:14px;font-weight:700}.rw-artifact{color:var(--rw-blue);border:1px solid #b6c9d7;border-left:3px solid currentColor;border-radius:5px;background:white;padding:13px 16px;min-width:0}.rw-artifact.red{color:var(--rw-red);border-color:#dac1bb;border-left-color:currentColor}.rw-artifact-top{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:600}.rw-artifact-top .rw-hard{font-size:12px;font-weight:600;line-height:1.25;background:#f6e8c7;color:#77561c;padding:3px 6px;border-radius:3px;margin-left:auto}.rw-trace{display:flex;align-items:center;gap:8px;margin:14px 0 10px}.rw-trace i{height:7px;flex:1;background:currentColor;border-radius:1px}.rw-trace i.off{background:#e3e8eb}.rw-trace b{font-size:16px;line-height:12px}.rw-artifact small{font-size:12px;color:#63727c}.rw-pair{display:flex;align-items:center;justify-content:center;gap:14px;min-height:57px}.rw-pair .rw-prefer{font-size:25px;color:#46535e}.rw-pair+.rw-pair{margin-top:10px}.rw-pair-notes{display:flex;justify-content:space-around;color:#677780;font-size:12px;gap:24px}.rw-outcome{border-top:1px solid #e1e7eb;margin-top:18px;padding-top:13px;font-size:14px;line-height:1.5}.rw-object .rw-loss{float:right;font-size:12px;font-weight:500;color:#63727c;letter-spacing:0;border:1px solid #d8e0e5;padding:2px 6px;border-radius:3px}.rw-result{display:flex;align-items:baseline;gap:12px;border-top:1px solid var(--rw-line);padding:14px 22px;font-size:14px;line-height:1.45;background:#fff}.rw-result b{font-size:12px;text-transform:uppercase;letter-spacing:.07em;color:#74818b;flex-shrink:0}.rw-progress{height:3px;background:#e8edf0}.rw-progress span{display:block;height:100%;width:0;background:var(--rw-blue)}.rw-legend{display:flex;justify-content:space-between;gap:20px;padding:14px 0;font-size:13px;line-height:1.5;color:#64717a}.rw-legend p{margin:0}.rw-bottom-note{display:flex;align-items:baseline;gap:18px;border-top:1px solid var(--rw-line);padding-top:15px;font-size:15px;color:#5e6d77}.rw-bottom-note strong{color:#27333d;font-size:16px}.rw-photo-pair{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:620px;width:100%;margin:0 auto}.rw-photo-pair img{display:block;max-width:100%;width:100%;height:auto;aspect-ratio:5/4;object-fit:contain;border-radius:4px}.rw-photo-pair figcaption{display:flex;justify-content:space-between;align-items:center;font-size:14px;padding:8px 0 0;gap:12px}.rw-photo-pair b{font-weight:600}.rw-thumb{width:86px;height:auto;aspect-ratio:5/4;object-fit:contain;border-radius:3px;display:block}.rw-state-row{display:flex;align-items:center;justify-content:space-between;gap:10px}.rw-state-row+.rw-state-row{margin-top:16px}.rw-vector{display:flex;gap:4px;align-items:center}.rw-vector i{width:17px;height:34px;background:var(--rw-blue);opacity:var(--v,.7);border-radius:1px}.rw-vector.red i{background:var(--rw-red)}.rw-vector.purple i{background:var(--rw-purple)}.rw-math{font:22px/1.5 Georgia,'Times New Roman',serif;color:#35434e;text-align:center;padding:12px 0;white-space:nowrap}.rw-math sub,.rw-math sup{font-size:.65em}.rw-matrix{display:grid;gap:7px;justify-content:center;margin:12px 0}.rw-basis{display:flex;gap:12px;justify-content:center;margin:20px 0}.rw-basis i{width:22px;height:100px;border:1px solid #b7adcf;background:linear-gradient(0deg,#7a6a9c,#e0d9eb);border-radius:2px}.rw-rank{font-size:13px;text-align:center;color:#63727c}.rw-token-bars{display:grid;gap:17px;margin:18px 0}.rw-token-bar{display:grid;grid-template-columns:65px 1fr 32px;gap:10px;align-items:center;font-size:13px}.rw-token-bar>i{display:block;height:16px;background:#edf1f3;border-radius:2px;overflow:hidden}.rw-token-bar>i>b{display:block;height:100%;background:var(--rw-blue);width:var(--amount)}.rw-token-bar:nth-child(2)>i>b{background:var(--rw-red)}.rw-branch-list{padding:0;margin:16px 0 0;list-style:none;display:grid;gap:12px;font-size:14px}.rw-branch-list li{padding:9px 11px;border-left:3px solid #c7d0d6;background:#f5f7f8}.rw-branch-list li:first-child{border-color:var(--rw-blue);background:#edf4f7}.rw-branch-list b{display:block;margin-bottom:2px}.rw-state-bar{display:flex;height:24px;width:100%;border-radius:3px;overflow:hidden;margin:10px 0}.rw-state-bar i{width:62%;background:#b8c4cc}.rw-state-bar b{width:38%;background:var(--rw-purple)}.rw-state-bar.edited b{width:20%;background:#aba0c3}.rw-state-label{font-size:13px;display:flex;justify-content:space-between;color:#64717a}.rw-step-seq{display:flex;align-items:center;gap:9px;justify-content:center;flex-wrap:wrap;margin-top:14px;font-size:14px}.rw-step-seq span{padding:7px 12px;border:1px solid #d2dce2;background:#fff;border-radius:4px}.rw-step-seq span:last-child{border-color:#9bb6c9;color:var(--rw-blue)}.rw-reveal{transition:opacity .4s ease,transform .4s ease}.rw-panel[data-beat="0"] .rw-reveal{opacity:.32;transform:translateY(4px)}.rw-panel[data-beat="1"] .rw-reveal.later{opacity:.38}.rw.paused .rw-reveal{transition:none}.rw.reduced .rw-reveal{opacity:1!important;transform:none!important;transition:none!important}
@media(max-width:950px){.rw-header{grid-template-columns:1fr;gap:12px}.rw-header h3{max-width:none}.rw-three.wide{grid-template-columns:1fr 24px 1fr;gap:10px}.rw-three.wide>.rw-arrow:nth-child(4){display:none}.rw-three.wide>:last-child{grid-column:1/-1;max-width:none}.rw-three.wide>:last-child p{margin-top:6px}.rw-nav button{padding:12px 10px}.rw-nav strong{font-size:13px}.rw-header,.rw-scene{padding:22px}.rw-lane{grid-template-columns:150px 26px minmax(0,1fr);gap:12px}}
@media(max-width:620px){.rw-toolbar{padding:11px 14px}.rw-toolbar>span{font-size:13px}.rw-controls{gap:9px;font-size:12px}.rw-controls label{max-width:108px}.rw-nav{grid-template-columns:repeat(5,minmax(0,1fr))}.rw-nav button{min-height:67px;padding:10px 6px;text-align:center}.rw-nav strong{font-size:12px;line-height:1.2;display:block;overflow-wrap:normal}.rw-nav button[aria-pressed=true]:after{left:6px;right:6px}.rw-nav span{font-size:11px}.rw-header{padding:19px 16px;gap:12px}.rw-header h3{font-size:21px!important}.rw-header ul{font-size:14px;padding-left:17px}.rw-scene{padding:20px 16px;min-height:0;gap:18px}.rw-columns{grid-template-columns:1fr;gap:16px}.rw-three,.rw-three.wide{grid-template-columns:1fr;gap:12px}.rw-three>.rw-arrow{transform:rotate(90deg);font-size:23px}.rw-three.wide>:last-child{grid-column:auto}.rw-three.wide>.rw-arrow:nth-child(4){display:grid}.rw-lane{grid-template-columns:1fr;gap:11px;position:relative}.rw-lane>.rw-arrow{display:none}.rw-lane .rw-name{font-size:15px}.rw-agent-note{margin-top:2px}.rw-artifact{padding:12px 14px}.rw-lane+.rw-lane{padding-top:16px;border-top:1px solid #e1e7eb}.rw-photo-pair{gap:13px}.rw-photo-pair figcaption{font-size:12px;display:block}.rw-photo-pair figcaption span{display:block;margin-top:5px}.rw-object{padding:15px}.rw-result{padding:13px 16px;align-items:flex-start;gap:10px;font-size:14px}.rw-result b{padding-top:2px}.rw-legend{display:block;font-size:12px}.rw-legend p+p{margin-top:5px}.rw-bottom-note{display:block;font-size:14px}.rw-bottom-note strong{display:block;margin-bottom:4px}.rw-context{font-size:13px}.rw-math{font-size:23px}.rw-pair{gap:12px}.rw-pill{font-size:13px;padding:5px 9px}.rw-artifact-top .rw-hard{font-size:11px}.rw-thumb{width:92px}.rw-basis i{height:70px}.rw-state-row{justify-content:space-around}.rw-vector i{width:16px}.rw-step-seq{font-size:13px}.rw-step-seq span{padding:6px 9px}}
@media(prefers-reduced-motion:reduce){.rw *{animation:none!important;transition:none!important}}

.rw .rw-nav{gap:0}.rw.paused .rw-reveal{opacity:1!important;transform:none!important}.rw-object{align-self:stretch;display:flex;flex-direction:column;justify-content:center}.rw-state-row .rw-vector{flex-shrink:0}

.rw-columns>.rw-object{justify-content:flex-start}.rw-columns>.rw-object h4{margin-bottom:12px}.rw-columns>.rw-object .rw-outcome{margin-top:auto;padding-top:14px}.rw-columns>.rw-object .rw-pair:last-of-type{margin-bottom:18px}.research-bullets{margin:12px 0 0;padding-left:19px;font-size:15px;line-height:1.6;color:#596874}.research-bullets li+li{margin-top:7px}.research-bullets b{color:#34444f}.rw-scene .rw-context .icon{width:18px;height:18px;vertical-align:-3px;margin-right:5px}.rw .rw-nav{position:static;width:auto;height:auto;border-radius:0;background:#fff}
@media(max-width:620px){.rw-pair{gap:8px}.rw-pair .rw-pill{min-width:0;white-space:normal;padding:6px;gap:6px;font-size:12px}.rw-pair .rw-chip{min-width:23px;height:23px;font-size:13px}.rw-pair .rw-prefer{font-size:23px}.research-bullets{font-size:14px}.rw-columns>.rw-object .rw-outcome{margin-top:12px}}

@media(max-width:620px){.rw-step-seq{flex-direction:column;gap:7px}.rw-step-seq b{transform:rotate(90deg)}}

.rw-object{justify-content:flex-start}.rw-three.wide .rw-math{margin:15px 0}.rw-three.wide .rw-rank{margin-top:auto}

/* Keep the learner at the endpoint of its own preference comparisons. */
.rw-learning-flow{--learner-color:var(--rw-blue);display:grid;grid-template-columns:minmax(0,1.55fr) 104px minmax(220px,1fr);align-items:center;gap:24px}
.rw-learning-flow.red{--learner-color:var(--rw-red)}
.rw-training-data{padding:22px 24px;border:1px solid #ccd6dd;border-radius:6px;background:#fff;min-width:0}
.rw-training-data .rw-label{font-size:13px!important;letter-spacing:.045em}
.rw-training-data .rw-pair{justify-content:flex-start}
.rw-training-data .rw-pair+.rw-pair{margin-top:4px}
.rw-pair-explanation{font-size:14px;line-height:1.5;color:#63717c;margin-top:15px!important}
.rw-training-link{color:var(--learner-color);display:flex;flex-direction:column;gap:12px;align-items:center}
.rw-training-link>span{font-size:13px;font-weight:600;white-space:nowrap}
.rw-training-link>i{display:block;width:100%;height:2px;background:currentColor;position:relative;opacity:.3;transition:opacity .35s}
.rw-training-link>i:after{content:'';position:absolute;right:0;top:-4px;width:10px;height:10px;border-top:2px solid currentColor;border-right:2px solid currentColor;transform:rotate(45deg)}
.rw-learner{display:flex;align-items:center;gap:17px;min-width:0}
.rw-learner-icon{width:66px;height:66px;border:1px solid currentColor;border-radius:50%;display:grid;place-items:center;flex-shrink:0;background:#fff;transition:box-shadow .4s}
.rw-learner-icon .icon{width:34px;height:34px}
.rw-learner-label{font-size:13px;font-weight:500;display:block;color:#64717a;margin-bottom:2px}
.rw-learner h4{font-size:22px;line-height:1.25;font-weight:600;letter-spacing:-.025em;color:inherit}
.rw-learner p{font-size:14px;line-height:1.5;color:#5b6a75;margin-top:7px;max-width:230px}
.rw-training-panel[data-beat="1"] .rw-training-link>i,.rw-training-panel[data-beat="2"] .rw-training-link>i,.rw.paused .rw-training-link>i,.rw.reduced .rw-training-link>i{opacity:1}
.rw-training-panel[data-beat="2"] .rw-learner-icon{box-shadow:0 0 0 5px color-mix(in srgb,currentColor 8%,transparent)}
.rw-update-scene{gap:24px}
.rw-update-scene .rw-learning-flow+.rw-learning-flow{border-top:1px solid #e1e7eb;padding-top:24px}
@media(max-width:1050px){.rw-learning-flow{grid-template-columns:minmax(0,1.4fr) 78px minmax(200px,1fr);gap:18px}.rw-training-data{padding:20px 18px}.rw-learner{gap:12px}.rw-learner-icon{width:52px;height:52px}.rw-learner-icon .icon{width:29px;height:29px}.rw-learner h4{font-size:20px}}
@media(max-width:800px){.rw-learning-flow{grid-template-columns:minmax(0,1fr) 55px minmax(160px,.7fr);gap:12px}.rw-training-link>span{font-size:11px}.rw-training-data{padding:17px 14px}.rw-training-data .rw-pair{gap:8px}.rw-training-data .rw-pill{white-space:normal;font-size:13px;padding:6px}.rw-learner{flex-direction:column;align-items:flex-start;gap:10px}.rw-learner p{font-size:13px}}
@media(max-width:620px){.rw-learning-flow{grid-template-columns:1fr;gap:17px}.rw-training-data{padding:18px}.rw-training-data .rw-pair{justify-content:center}.rw-training-data .rw-label{font-size:12px!important}.rw-training-data .rw-pair-explanation{font-size:13px}.rw-training-link{width:auto;height:32px;flex-direction:row;justify-content:center;gap:16px}.rw-training-link>span{font-size:12px;order:2}.rw-training-link>i{width:2px;height:30px}.rw-training-link>i:after{top:auto;bottom:0;right:-4px;transform:rotate(135deg)}.rw-learner{flex-direction:row;align-items:center;justify-content:center;gap:16px;padding-bottom:3px}.rw-learner-icon{width:58px;height:58px}.rw-learner h4{font-size:22px}.rw-learner p{font-size:14px;max-width:235px}.rw-update-scene .rw-learning-flow+.rw-learning-flow{padding-top:23px}.rw-learner-label{font-size:13px}}