:root{--br-ink:#20201e;--br-muted:#5c6569;--br-line:#d9dfe1;--br-surface:#f5f7f7;--br-gutter:clamp(22px,3.6vw,64px)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:104px}body{margin:0;background:#fff;color:var(--br-ink);font-family:Inter,Arial,sans-serif;font-size:16px;line-height:1.65}a{color:inherit}button,input{font:inherit}button,a,input{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid #42677d;outline-offset:5px}.br-wrap{max-width:1512px;margin-inline:auto;padding-inline:var(--br-gutter)}.br-eyebrow{font:500 11px/1.5 'IBM Plex Mono',monospace;letter-spacing:.13em;text-transform:uppercase;color:var(--br-muted);margin:0 0 18px}.br-skip{position:fixed;left:20px;top:-80px;background:#20201e;color:#fff;z-index:1000;padding:12px 18px}.br-skip:focus{top:12px}.br-hero{padding-top:142px;padding-bottom:68px;background-image:linear-gradient(#dce2e338 1px,transparent 1px),linear-gradient(90deg,#dce2e338 1px,transparent 1px);background-size:32px 32px}.br-back{display:inline-block;margin-bottom:45px;text-decoration:none;font-size:12px;color:var(--br-muted)}.br-hero h1{--xeon-title-size:clamp(46px,5.6vw,83px);max-width:1140px;letter-spacing:-.05em;line-height:1.04;margin:0 0 28px;text-transform:none!important;font-weight:500}.br-hero h1 span{color:#687277}.br-deck{font-size:clamp(18px,1.65vw,24px);line-height:1.5;max-width:750px;color:#555e63;margin:0 0 28px}.br-meta{display:flex;gap:12px 24px;flex-wrap:wrap;font-size:11px;color:var(--br-muted)}.br-meta span+span:before{content:'•';margin-right:24px;color:#a5adb1}.br-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:28px}.br-button{display:inline-flex;gap:35px;align-items:center;justify-content:space-between;padding:13px 18px;border:1px solid var(--br-ink);background:var(--br-ink);color:#fff;text-decoration:none;font-size:12px;font-weight:600;transition:background .15s}.br-button:hover{background:#424743}.br-button-light{background:#fff;color:var(--br-ink);border-color:var(--br-line)}.br-button-light:hover{background:#edf1f2}.br-explorer{padding-top:35px;padding-bottom:58px;scroll-margin-top:95px}.br-explorer-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:24px}.br-explorer-heading h2{--xeon-title-size:clamp(28px,3vw,42px);margin:0;letter-spacing:-.04em;text-transform:none!important;font-weight:500}.br-explorer-heading .br-eyebrow{margin-bottom:8px}.br-explorer-heading>p{font-size:13px;color:var(--br-muted);margin:0}.br-lab{display:grid;grid-template-columns:200px minmax(0,1fr);border:1px solid var(--br-line)}.br-tabs{border-right:1px solid var(--br-line);background:#fff;padding:12px}.br-tabs button{width:100%;border:0;background:transparent;text-align:left;padding:16px 10px;color:#525d62;font-size:12px;display:flex;gap:12px;align-items:center;min-height:49px}.br-tabs button span{font:10px monospace;color:#899296}.br-tabs button[aria-pressed=true]{background:#20201e;color:#fff}.br-tabs button[aria-pressed=true] span{color:#c1c8ca}.br-tabs button:hover:not([aria-pressed=true]){background:#eef1f2}.br-stage{min-width:0;background:var(--br-surface)}.br-stage-top,.br-stage-bottom{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:15px 20px;font-size:11px}.br-stage-top{border-bottom:1px solid var(--br-line)}.br-stage-top p,.br-stage-bottom p{margin:0}.br-stage-top p{font-weight:600}.br-camera{display:flex;gap:3px}.br-camera button{border:1px solid transparent;padding:5px 8px;background:transparent;color:#5b6468;font-size:10px;white-space:nowrap}.br-camera button[aria-pressed=true]{border-color:#8d989d;background:#fff;color:#20201e}.br-canvas-wrap{height:430px;position:relative;overflow:hidden;background:linear-gradient(0deg,#e9eeef,#f6f8f8)}#br-canvas{display:block;width:100%;height:100%;touch-action:pan-y;cursor:grab}#br-canvas:active{cursor:grabbing}#br-canvas[hidden]{display:none}#viewer-fallback{height:100%;width:100%;object-fit:contain}.br-part-labels{position:absolute;inset:16px 0 auto;display:grid;grid-template-columns:1fr 1fr;pointer-events:none;text-align:center;font:500 10px monospace;letter-spacing:.07em;text-transform:uppercase}.br-part-labels span{justify-self:center;border:1px solid #c9d1d3;background:#fff9;padding:5px 9px}.br-stage-bottom{border-top:1px solid var(--br-line);color:var(--br-muted);flex-wrap:wrap}.br-stage-bottom label{display:flex;align-items:center;gap:7px;cursor:pointer}.br-stage-bottom input{accent-color:#20201e}.br-explorer-caption{display:flex;justify-content:space-between;gap:20px;margin-top:18px;align-items:baseline;font-size:13px}.br-explorer-caption p{margin:0;font-weight:500}.br-explorer-caption a{text-underline-offset:5px;white-space:nowrap}.br-note{font-size:11px;color:var(--br-muted);line-height:1.8;max-width:920px;margin:18px 0 0}.br-body{display:grid;grid-template-columns:225px minmax(0,960px);gap:clamp(36px,6vw,100px);border-top:1px solid var(--br-line);padding-top:70px;padding-bottom:95px}.br-toc{align-self:start;position:sticky;top:110px}.br-toc nav{display:grid}.br-toc nav a{display:flex;gap:16px;text-decoration:none;font-size:12px;padding:10px 0;color:#525c61}.br-toc nav span{font:11px/1.8 monospace;color:#939da1;width:16px}.br-toc nav a:hover,.br-toc nav a[aria-current=true]{color:#20201e}.br-toc nav a[aria-current=true]{font-weight:650}.br-toc-tool{border-top:1px solid var(--br-line);display:block;margin-top:22px;padding-top:20px;text-decoration:none;font-size:12px}.br-article{min-width:0}.br-article h2{--xeon-title-size:clamp(27px,3vw,40px);line-height:1.16;letter-spacing:-.035em;text-transform:none!important;font-weight:500;margin:0 0 20px}.br-article h3{font-size:13px;font-weight:600;margin:0 0 10px}.br-article p{color:#505b61;font-size:15px;line-height:1.85;margin:0 0 18px}.br-article p.br-eyebrow{font-size:10px;line-height:1.5;margin-bottom:12px}.br-article p.br-rule-lead{font-size:18px;line-height:1.65;color:#667075}.br-article strong{color:#2f383c;font-weight:600}.br-article a{text-underline-offset:4px}.br-intro{padding-bottom:44px}.br-rule{border-top:1px solid var(--br-line);padding:52px 0;scroll-margin-top:110px}.br-rule-head{display:grid;grid-template-columns:50px 1fr;gap:22px}.br-number{font:400 22px/1.3 'IBM Plex Mono',monospace;color:#8d999e}.br-figure{margin:16px 0 26px;border:1px solid var(--br-line);background:#f4f6f6}.br-figure img{display:block;width:100%;height:auto}.br-figure figcaption{border-top:1px solid var(--br-line);padding:13px 18px;display:flex;justify-content:space-between;align-items:center;gap:14px;background:#fff;font-size:11px;color:#5c676b}.br-explore{font-size:11px;color:#303a40;background:transparent;border:0;padding:7px 0;white-space:nowrap;text-decoration:underline;text-underline-offset:5px}.br-two{display:grid;grid-template-columns:1fr 1fr;gap:32px}.br-two>div+div{border-left:1px solid var(--br-line);padding-left:32px}.br-cad-detail{border-block:1px solid var(--br-line);margin:26px 0 18px;padding:0 17px;background:#f7f9f9}.br-cad-detail summary{cursor:pointer;font-size:12px;padding:15px 0;font-weight:500}.br-cad-detail p{font-size:12px;margin:0 0 16px}.br-related{display:flex;align-items:center;justify-content:space-between;gap:20px;text-decoration:none;font-size:12px;padding-top:8px}.br-models{border-top:1px solid var(--br-line);padding:50px 0}.br-models ol{padding-left:22px;color:#505b61;font-size:14px;line-height:1.8}.br-models li{padding:5px 0}.br-models .br-note{font-size:11px;margin-top:22px}.br-next{padding:32px;background:#f1f4f4;border:1px solid var(--br-line);margin-top:10px}.br-next .br-actions>a:not(.br-button){font-size:12px}.br-sources{border-top:1px solid var(--br-line);margin-top:44px;padding-top:28px}.br-sources p{font-size:11px;line-height:1.8}.br-sources h3{font-size:11px}.br-body .br-note{max-width:none}
@media(min-width:1500px){.br-canvas-wrap{height:470px}}
@media(max-width:1000px){.br-lab{grid-template-columns:155px 1fr}.br-tabs{padding:8px}.br-tabs button{gap:8px;padding:15px 8px;font-size:11px}.br-body{grid-template-columns:170px minmax(0,1fr);gap:35px}.br-camera button{padding:5px}.br-stage-top{padding:12px}.br-canvas-wrap{height:360px}.br-explorer-caption{font-size:12px}}
@media(max-width:720px){html{scroll-padding-top:85px}.br-hero{padding-top:110px;padding-bottom:35px}.br-back{margin-bottom:30px}.br-hero h1{--xeon-title-size:clamp(37px,8vw,55px)}.br-deck{font-size:18px}.br-meta{gap:9px 15px}.br-meta span+span:before{display:none}.br-button{gap:18px;padding:12px 14px}.br-explorer{padding-top:25px;padding-bottom:35px}.br-explorer-heading{display:block}.br-explorer-heading>p{margin-top:12px;font-size:12px}.br-explorer-heading>p br{display:none}.br-lab{display:block}.br-tabs{display:flex;overflow:auto;gap:5px;border-right:0;border-bottom:1px solid var(--br-line);padding:8px;scrollbar-width:thin}.br-tabs button{flex:0 0 auto;width:auto;padding:10px 12px;min-height:40px}.br-stage-top{align-items:flex-start;flex-wrap:wrap;gap:6px}.br-stage-top p{font-size:11px}.br-camera button{font-size:10px}.br-canvas-wrap{height:310px}.br-part-labels{font-size:9px;top:12px}.br-stage-bottom{padding:12px;font-size:10px;gap:7px}.br-explorer-caption{display:block;margin-top:13px}.br-explorer-caption a{display:inline-block;margin-top:10px}.br-note{font-size:10px}.br-body{display:block;padding-top:30px;padding-bottom:50px}.br-toc{position:static;border-bottom:1px solid var(--br-line);padding-bottom:25px;margin-bottom:35px}.br-toc nav{grid-template-columns:1fr 1fr;gap:0 16px}.br-toc nav a{font-size:11px;gap:9px;padding:7px 0}.br-toc-tool{margin-top:12px;padding-top:12px}.br-rule{padding:35px 0}.br-rule-head{grid-template-columns:28px 1fr;gap:13px}.br-number{font-size:17px}.br-article h2{--xeon-title-size:29px}.br-article p{font-size:14px}.br-article p.br-rule-lead{font-size:16px}.br-two{display:block}.br-two>div+div{border-left:0;padding-left:0}.br-figure figcaption{display:block;padding:10px 12px;font-size:10px}.br-explore{display:block;margin-top:5px}.br-related{font-size:11px}.br-models{padding:35px 0}.br-next{padding:24px}.br-actions .br-button{font-size:11px}.br-intro{padding-bottom:24px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

#br-canvas[hidden]+.br-part-labels{display:none}

.br-tool-intro{display:grid;grid-template-columns:200px minmax(0,720px);gap:clamp(25px,5vw,80px);padding-top:36px;padding-bottom:42px;border-block:1px solid var(--br-line);align-items:center}.br-tool-profile{background:#edf2f3}.br-tool-profile img{display:block;width:100%;height:280px;object-fit:contain}.br-tool-intro h2{--xeon-title-size:36px;line-height:1.13;margin:0 0 18px}.br-tool-intro p:not(.br-eyebrow):not(.br-note){font-size:14px;line-height:1.8;color:#526068;margin:0 0 18px}.br-tool-specs{display:flex;flex-wrap:wrap;gap:15px 28px;font-size:10px;color:#69767d;padding:16px 0;border-block:1px solid var(--br-line);margin-bottom:15px}.br-tool-specs strong{display:block;color:#304650;font:500 19px monospace;line-height:1.7}.br-tool-intro .br-note{margin-top:15px}.br-setup-note{font:10px/1.6 monospace;letter-spacing:.03em;color:#5f727d;padding:13px 16px;margin:0;border:1px solid var(--br-line);border-top:0;background:#fafcfc}#flip-tool-label[hidden]{display:none}.br-camera button:disabled{opacity:.35;cursor:default}#full-tool[aria-pressed=true]{border-color:#8d989d;background:#fff;color:#20201e}
@media(max-width:720px){.br-tool-intro{grid-template-columns:82px minmax(0,1fr);gap:19px;padding-top:24px;padding-bottom:27px;align-items:start}.br-tool-profile img{height:155px}.br-tool-intro h2{--xeon-title-size:25px}.br-tool-intro .br-eyebrow{font-size:9px}.br-tool-intro p:not(.br-eyebrow):not(.br-note){font-size:12px}.br-tool-specs{gap:12px;font-size:9px}.br-tool-specs strong{font-size:16px}.br-tool-intro .br-related{font-size:10px}.br-stage-top{display:block}.br-camera{margin-top:9px}.br-setup-note{font-size:9px}.br-tool-intro .br-note{font-size:9px}}

/* Springback: an assumed recovery amount, clearly separate from material data. */
.br-spring-demo{border:1px solid #d9e1e3;background:#f6f8f8;margin:24px 0 30px}.br-spring-demo .br-figure{border:0;margin:0}.br-spring-controls{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:22px 24px;border-bottom:1px solid #d9e1e3}.br-spring-controls[hidden]{display:none}.br-spring-controls>label:first-child{display:grid;grid-template-columns:1fr auto;gap:10px;min-width:210px;font-size:13px;font-weight:600;flex:1}.br-spring-controls input[type=range]{grid-column:1/-1;width:100%;accent-color:#415e6d}.br-spring-controls output{font-variant-numeric:tabular-nums}.br-spring-check{display:flex;align-items:center;gap:9px;font-size:13px}.br-spring-check input{accent-color:#415e6d;width:16px;height:16px}.br-spring-demo svg{display:block;width:100%;height:auto}.br-spring-equation{display:flex;align-items:center;justify-content:center;gap:24px;padding:24px 16px;color:#435861;border-top:1px solid #d9e1e3}.br-spring-equation span{font-size:12px;text-align:center}.br-spring-equation strong{display:block;font-size:29px;line-height:1.4;font-weight:500;font-variant-numeric:tabular-nums;color:#203c49}.br-spring-equation b{font-weight:400;font-size:20px}.br-spring-equation.is-open span:last-child strong{color:#9b6148}.br-spring-demo>.br-note{padding:0 24px 20px;margin:0}.br-spring-takeaway{border-left:3px solid #849da8;background:#f1f5f5;padding:22px 26px;margin:26px 0}.br-spring-takeaway p:last-child{margin-bottom:0}.br-spring-controls input:focus-visible{outline:2px solid #3c6478;outline-offset:5px}@media(max-width:600px){.br-spring-controls{align-items:stretch;flex-direction:column;gap:18px;padding:20px}.br-spring-equation{gap:14px}.br-spring-equation strong{font-size:24px}.br-spring-equation span{font-size:10px}.br-spring-demo>.br-note{padding:0 18px 18px}.br-spring-takeaway{padding:18px}.br-spring-demo figcaption{align-items:flex-start;gap:10px;flex-direction:column}}