:root{color-scheme:light;--paper:#fff;--ink:#292929;--muted:#666;--link:#245caa;--rule:#e1e1e1}*{box-sizing:border-box}html{scroll-padding-top:28px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif;font-size:15px;line-height:1.65}::selection{background:#dce8f9;color:#142f52}a{color:var(--link);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{color:#163866;text-decoration-thickness:2px}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--link);outline-offset:5px}p{margin:0 0 12px}h1,h2,h3{color:#202020;line-height:1.35}h1{margin:0 0 8px;font-size:34px;letter-spacing:-1.1px}h1,h2{font-weight:500}h2{margin:0 0 24px;font-size:21px;letter-spacing:-.35px}h3{margin:0 0 7px;font-size:15px;font-weight:600}img{display:block;max-width:100%}.site-footer,main{width:min(820px,calc(100% - 48px));margin-inline:auto}main{padding-top:68px}section{padding:33px 0;border-bottom:1px solid var(--rule)}section:last-child{border-bottom:0}[id]{scroll-margin-top:28px}.skip-link{position:absolute;top:10px;left:12px;padding:6px 12px;background:#fff;transform:translateY(-180%)}.skip-link:focus{transform:translateY(0)}.intro{display:grid;grid-gap:48px;gap:48px;align-items:start;padding-bottom:31px}.intro-line{color:var(--muted);margin-bottom:21px}.intro-photo{margin:6px 0 0}.intro-photo img{width:160px;height:192px;object-fit:cover;object-position:40% 38%}.intro-photo figcaption{font-size:11px;color:var(--muted);margin-top:7px;text-align:center}.inline-links{display:flex;flex-wrap:wrap;padding:0;margin:17px 0 0;list-style:none}.inline-links li+li:before{content:"/";display:inline-block;color:#aaa;margin:0 12px}.section-nav{display:flex;flex-wrap:wrap;gap:10px 23px;padding:15px 0;border-block:1px solid var(--rule);font-size:13px}.section-nav a{text-decoration:none}.section-nav a:hover{text-decoration:underline}.section-heading{display:flex;align-items:baseline;justify-content:space-between;gap:16px}.section-heading>a{font-size:12px;white-space:nowrap}.project+.project{margin-top:25px}.project p{margin-bottom:6px}.project h3>a{font-size:16px}.project-note{display:inline-block;font-size:12px;font-weight:400;color:var(--muted);margin-left:14px}.tech{color:var(--muted);line-height:1.7}.work-in-progress{font-size:13px;margin:25px 0 0}.entry-date,.muted,.role{color:var(--muted)}.entry{display:grid;grid-template-columns:115px minmax(0,1fr);grid-gap:22px;gap:22px;margin-top:27px}.entry-date{line-height:1.7;padding-top:2px}.entry p:last-child{margin-bottom:0}.role{font-size:12px;margin:-1px 0 9px}.section-note,.upcoming{font-size:13px}.section-note{margin:25px 0 0 137px}.writing-entry{display:grid;grid-template-columns:115px minmax(0,1fr);grid-gap:22px;gap:22px;margin-top:20px}.writing-entry p{font-size:13px;margin-bottom:0}.honors-list{margin:0}.honors-list>div{display:flex;justify-content:space-between;gap:25px;padding:7px 0;font-size:13px}.honors-list dd{flex-shrink:0;margin:0;color:var(--muted);text-align:right}.skills{font-size:13px;margin-top:21px}summary{cursor:pointer;color:var(--link);width:-moz-fit-content;width:fit-content}summary:hover{text-decoration:underline;text-underline-offset:3px}.skills-list{margin:17px 0 0}.skills-list>div{display:grid;grid-template-columns:100px minmax(0,1fr);grid-gap:15px;gap:15px;margin:9px 0}.skills-list dt{color:var(--muted)}.skills-list dd{margin:0}.site-footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 24px;padding:21px 0 35px;border-top:1px solid var(--rule);color:var(--muted);font-size:12px}.site-footer p{margin:0}.site-footer a{overflow-wrap:anywhere}.page-heading{margin-bottom:29px}.page-heading>p:last-child{color:var(--muted)}.breadcrumb{font-size:13px;margin-bottom:29px}.eyebrow{color:var(--muted);font-size:12px;margin-bottom:7px}.project-detail h2{margin-bottom:15px}.engineering-notes{margin:22px 0 0;padding-left:19px}.engineering-notes li{margin-bottom:13px;padding-left:5px}.engineering-notes li:last-child{margin-bottom:0}.post-list{padding-top:0}.post-list article{padding:23px 0;border-top:1px solid var(--rule)}.post-list h2{font-size:18px;margin:5px 0 10px}.post-meta{font-size:12px;color:var(--muted)}.blog-post{max-width:680px;margin:0 auto;padding-bottom:38px}.blog-post h1{font-size:32px;margin:14px 0}.blog-post-content{text-transform:lowercase;margin-top:34px}.blog-post-content h2,.blog-post-content h3{font-size:21px;margin:30px 0 14px;font-weight:500}.blog-post-content p{margin-bottom:18px}.blog-post-content pre{padding:15px;background:#f4f4f4;overflow-x:auto}.blog-post-content code,.blog-post-content pre{text-transform:none}.blog-post-content blockquote{margin-left:0;padding-left:20px;border-left:2px solid var(--rule);color:var(--muted)}.back-link{display:inline-block;margin-top:26px;font-size:13px}.resume-points{margin:10px 0 0;padding-left:18px}.resume-points li{padding-left:3px;margin:0 0 8px}.resume-points li:last-child{margin-bottom:0}.resume-points strong,.role-heading{font-weight:600}.role-heading{font-size:13px;margin:16px 0 8px}.role-heading span{color:var(--muted);font-weight:400}.entry .upcoming{margin-top:13px}.section-intro{font-size:13px;color:var(--muted);margin:-9px 0 23px}.interactive-notes{margin-bottom:29px}.note-preview{display:grid;grid-template-columns:150px minmax(0,1fr);grid-gap:24px;gap:24px;align-items:center;margin:23px 0}.note-preview p{font-size:13px;margin-bottom:6px}.note-preview .eyebrow,.note-preview .tech{font-size:11px}.note-preview h3{font-size:17px}.note-illustration{display:block;color:var(--link);background:#fafbfc;padding:7px}.note-illustration svg{display:block;width:100%}.interactive-article{padding-bottom:32px}.essay-prose,.interactive-article>.page-heading{max-width:680px;margin-inline:auto}.interactive-article h1{font-size:36px}.essay-prose h2{margin:34px 0 15px}.essay-prose p{margin-bottom:18px}.try-this{border-left:2px solid var(--link);padding:2px 0 2px 17px;font-size:14px}.source-note{font-size:12px;color:var(--muted);margin-top:29px}.article-next{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px 25px;border-top:1px solid var(--rule);margin-top:35px;padding-top:23px;font-size:13px}.experiment{margin:35px 0 40px;padding:21px 25px 18px;border:1px solid var(--rule);background:#fbfcfd}.experiment-heading{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px 20px;font-size:11px;color:var(--muted)}.tree-diagram{margin:25px auto 0;max-width:680px}.elo-chart,.tree-diagram svg{display:block;width:100%;height:auto}.tree-diagram .tree-compact{display:none}.tree-edge{stroke:#bfc6d0;stroke-width:1.5;fill:none}.tree-edge.chosen{stroke:var(--link);stroke-width:3}.tree-node{fill:#fff;stroke:#8793a3;stroke-width:1.5}.tree-node.inspected,.tree-node.root,.tree-node.selected{fill:#e6eef9;stroke:var(--link)}.tree-node.active{stroke:var(--link);stroke-width:3}.tree-edge.skipped,.tree-node.skipped{stroke-dasharray:4 4;stroke:#a0a7b1}.node-value{fill:var(--ink);font-size:17px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.diagram-label{fill:#5b6470;font-size:11px}.diagram-key{color:var(--muted);font-size:10px;text-align:center;margin:5px 0 22px}.experiment-controls{border-top:1px solid var(--rule);padding-top:18px}.slider-control{display:block;font-size:12px}.slider-control>span{display:flex;justify-content:space-between;gap:16px}.slider-control output{color:var(--link);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-weight:600}input[type=range]{display:block;width:100%;margin:5px 0 12px;height:28px;accent-color:var(--link);cursor:pointer}.search-options{flex-wrap:wrap;gap:10px 28px;font-size:12px}.check-control,.search-options{display:flex;align-items:center}.check-control{gap:7px;cursor:pointer;min-height:32px}input[type=checkbox]{width:16px;height:16px;margin:0;accent-color:var(--link)}select{background:#fff;color:var(--ink);border:1px solid #abb4c0;padding:6px;margin-left:7px}button,select{font:inherit}.result-controls,.step-controls{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin:19px 0;font-size:12px}.experiment button{min-height:36px;padding:7px 12px;border:1px solid #aab7c8;border-radius:0;background:#fff;color:var(--link);cursor:pointer}.experiment button:hover:not(:disabled),.experiment button[aria-pressed=true]{background:#e6eef9;border-color:var(--link)}.experiment button:disabled{color:#777;border-color:#d5d8de;cursor:default}.experiment button.text-button{border-color:transparent;background:transparent;text-decoration:underline;text-underline-offset:3px}.experiment-readout{padding:14px 0 0;border-top:1px solid var(--rule);min-height:110px}.experiment-readout p{font-size:13px;margin:6px 0 0}.experiment figcaption{border-top:1px solid var(--rule);margin-top:15px;padding-top:12px;font-size:11px;color:var(--muted)}.elo-chart{margin:22px auto;max-width:680px}.chart-grid{stroke:#dfe3e9;stroke-width:1;fill:none}.elo-curve{stroke:var(--link);stroke-width:2.5;fill:none}.chart-guide{stroke:var(--link);stroke-dasharray:4 4;fill:none}.chart-point{fill:var(--link);stroke:#fff;stroke-width:2}.rating-controls{display:grid;grid-template-columns:1fr 1fr;grid-gap:25px;gap:25px}.result-controls>span{margin-right:7px}.rating-readout{border-top:1px solid var(--rule);padding-top:17px}.rating-readout dl{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:15px;gap:15px;margin:0 0 15px}.rating-readout dt{font-size:11px;color:var(--muted)}.rating-readout dd{font-size:25px;color:var(--link);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;margin:2px 0 0}.rating-readout p{font-size:12px;margin:0}.formula{font-size:14px;padding:15px 19px;border-left:2px solid var(--rule);margin:23px 0;overflow-wrap:anywhere}.formula p:last-child{margin-bottom:0}.balance-controls{display:grid;grid-template-columns:1fr 1fr;align-items:start;grid-gap:25px;gap:25px;margin-top:25px;font-size:12px}.balance-table{width:100%;table-layout:fixed;border-collapse:collapse;margin:15px 0 22px;font-size:12px}.balance-table caption{text-align:left;margin-bottom:16px;color:var(--muted)}.balance-table td,.balance-table th{padding:11px 8px;text-align:left;border-bottom:1px solid var(--rule)}.balance-table th:first-child{width:34%;padding-left:0}.balance-table tbody th{font-weight:400}.balance-table th span{display:block;color:var(--muted);font-size:10px}.bar-count{display:grid;grid-template-columns:minmax(0,1fr) 20px;grid-gap:8px;gap:8px;align-items:center;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.count-track{height:12px;background:#edf0f4}.count-bar{display:block;height:100%;background:#8293ac}.count-bar.balanced{background:var(--link)}.balance-summary{font-size:12px}.sample-details{font-size:12px;border-top:1px solid var(--rule);padding-top:15px}.sample-lists{display:grid;grid-template-columns:1fr 1fr;grid-gap:25px;gap:25px;margin-top:20px}.sample-lists h3{font-size:13px}.sample-lists ul{margin:0;padding:0;list-style:none}.sample-lists li{display:flex;justify-content:space-between;gap:10px;padding:4px 0;border-bottom:1px solid var(--rule);font-size:11px}.sample-lists li span:last-child{white-space:nowrap;color:var(--muted)}@media (max-width:600px){.site-footer,main{width:calc(100% - 36px)}main{padding-top:34px}body{font-size:14px}h1{font-size:30px}.intro{grid-template-columns:minmax(0,1fr);gap:20px;position:relative}.intro h1,.intro-line{padding-right:92px}.intro-line{max-width:310px;min-height:45px;margin-bottom:20px;font-size:13px}.intro-photo{position:absolute;top:0;right:0;margin:0}.intro-photo img{width:74px;height:88px}.intro-photo figcaption{display:none}.section-nav{gap:10px 20px}section{padding:28px 0}h2{font-size:20px;margin-bottom:22px}.entry,.writing-entry{grid-template-columns:minmax(0,1fr);gap:6px}.entry-date{padding:0}.section-note{margin-left:0}.project-note{display:block;margin:4px 0 0}.honors-list>div{gap:13px}.honors-list dd{max-width:100px}.skills-list>div{grid-template-columns:80px minmax(0,1fr)}.blog-post h1{font-size:28px}.note-preview{grid-template-columns:86px minmax(0,1fr);gap:16px;align-items:start}.note-illustration{margin-top:5px;padding:2px}.note-preview h3{font-size:16px}.interactive-article h1{font-size:30px}.experiment{padding:15px 12px;margin-inline:-4px}.tree-diagram .tree-wide{display:none}.tree-diagram .tree-compact{display:block}.diagram-key{text-align:left}.rating-controls{grid-template-columns:1fr;gap:7px}.rating-readout dd{font-size:22px}.experiment button{min-height:40px}.experiment-readout{min-height:135px}.role-heading span{display:block}.balance-controls,.sample-lists{grid-template-columns:1fr;gap:18px}.balance-table td,.balance-table th{padding-right:3px}.bar-count{grid-template-columns:minmax(0,1fr) 14px;gap:5px}}@media print{.site-footer,main{width:100%}main{padding-top:0}.breadcrumb,.section-nav,.site-footer,.skip-link{display:none}body{font-size:11px}section{padding:18px 0}a{color:inherit}.entry,.project{page-break-inside:avoid;break-inside:avoid}}:root{--paper:#fcfbf8;--ink:#30352f;--muted:#62675f;--link:#315b46;--rule:#dddfd5}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Arial,sans-serif;font-size:16px;line-height:1.75}.site-footer,main{width:min(900px,calc(100% - 64px))}main{padding-top:72px}h1,h2,h3{color:#242e27}h1{font-size:clamp(36px,5vw,54px);letter-spacing:-2px;font-weight:600}h2{font-size:25px;letter-spacing:-.6px}h3{font-size:16px}a:hover{color:#183d2a}::selection{background:#dce8d7;color:#183d2a}.intro{grid-template-columns:minmax(0,1fr) 160px;gap:52px;padding-bottom:38px}.intro-eyebrow{font-size:11px;letter-spacing:1.4px;text-transform:uppercase;margin-bottom:17px}.name-period{color:#668565}.intro-line{font-size:20px;line-height:1.5;letter-spacing:-.35px;color:#434e43;margin:15px 0 22px}.intro-photo{margin-top:46px}.intro-photo img{border-radius:4px}.inline-links{font-size:14px;margin-top:24px}.section-nav{padding-block:17px;font-size:14px;gap:10px 25px}.impact-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin:0;padding:24px 0;border-bottom:1px solid var(--rule);grid-gap:20px;gap:20px}.impact-strip dt{font-size:14px;font-weight:600}.impact-strip dd{margin:5px 0 0;font-size:11px;color:var(--muted)}section{padding-block:40px}.project-list{display:grid;grid-gap:0;gap:0}.project-list .project{padding:22px 0;border-top:1px solid var(--rule);margin:0}.project-list .project:first-child{border-top:0;padding-top:0}.project-list .project:last-child{padding-bottom:0}.project h3>a{font-size:19px}.project-note{font-size:11px;background:#eef1e9;border-radius:3px;padding:3px 8px;color:#4c624c;vertical-align:middle}.tech{font-size:12px;margin-top:10px}.entry{grid-template-columns:132px minmax(0,1fr);gap:30px;margin-top:32px}.entry-date{font-size:12px}.section-note{margin-left:162px}.contact-section{margin:18px 0 35px;padding:32px;background:#edf0e7;border:1px solid var(--rule);border-radius:4px}.contact-section h2{margin-bottom:12px}.contact-section p{max-width:570px}.contact-link{display:inline-block;margin-top:8px;font-weight:500;overflow-wrap:anywhere}.contact-link span{margin-left:10px}.site-footer{padding-top:24px}@media (max-width:600px){.site-footer,main{width:calc(100% - 40px)}main{padding-top:32px}body{font-size:15px}h1{font-size:38px;letter-spacing:-1.5px}h2{font-size:23px}.intro{display:block;padding-bottom:28px}.intro-photo{position:static;display:none}.intro h1,.intro-line{padding-right:0}.intro-line{max-width:none;min-height:0;font-size:19px;margin:12px 0 20px}.intro-eyebrow{font-size:10px}.section-nav{gap:10px 18px;font-size:13px}.impact-strip{gap:14px;grid-template-columns:1fr;padding-block:20px}.impact-strip>div{display:flex;align-items:baseline;flex-wrap:wrap;gap:3px 10px}.impact-strip dd{margin:0}.entry{grid-template-columns:minmax(0,1fr);gap:8px}.section-note{margin-left:0}.project-note{display:table;margin:7px 0 9px}.section-heading{flex-wrap:wrap;gap:0 14px;margin-bottom:22px}.section-heading h2{margin-bottom:6px}.contact-section{padding:23px 20px}}@media print{.site-footer,main{width:100%}main{padding-top:0}body{font-size:11px;background:#fff}.intro-line{font-size:16px}.contact-section{background:transparent;page-break-inside:avoid;break-inside:avoid}}:root{--wash:#f3f5ef;--soft:#b9c8b6}.impact-strip{grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}.card-links{display:flex;flex-wrap:wrap;gap:4px 18px;font-size:13px;margin:10px 0 0}.badge{display:inline-block;font-size:10px;font-weight:500;letter-spacing:.2px;background:#eef1e9;color:#4c624c;border-radius:3px;padding:2px 7px;margin-left:10px;vertical-align:2px}.badge.award{background:#f5ecd2;color:#6d5415}.project-visual{margin:0;border:1px solid var(--rule);border-radius:5px;overflow:hidden;background:#fff;box-shadow:0 1px 2px rgba(40,50,40,.05);transition:transform .25s ease,box-shadow .25s ease}.visual-bar{display:flex;align-items:center;gap:4px;height:20px;padding:0 8px;background:#f1f2ee;border-bottom:1px solid var(--rule)}.visual-bar span{width:6px;height:6px;border-radius:50%;background:#d3d6cd}.visual-bar em{font-style:normal;font-size:10px;color:#8b9087;margin-left:8px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.project-visual .illustration,.project-visual img{display:block;width:100%;aspect-ratio:16/10;height:auto;object-fit:cover;object-position:top center}.project-visual .illustration{background:var(--wash);color:var(--link);padding:6px}.build-card:hover .project-visual,a:hover>.project-visual{transform:translateY(-2px);box-shadow:0 6px 18px rgba(40,50,40,.1)}.visual-link{display:block;text-decoration:none}.project-detail.has-visual,.project.has-visual{display:grid;grid-template-columns:minmax(0,1fr) 280px;grid-gap:36px;gap:36px;align-items:start}.project-list .project.has-visual{padding:30px 0}.project-list .project.has-visual:first-child{padding-top:4px}.build-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:36px 26px;gap:36px 26px}.build-card{display:flex;flex-direction:column}.build-card .project-visual{margin-bottom:14px}.build-card .eyebrow{font-size:11px;margin-bottom:3px}.build-card h3{font-size:16px;margin-bottom:6px}.build-card p{font-size:13px;line-height:1.65;margin-bottom:0}.build-card .tech{font-size:11px;margin-top:8px}.build-card .card-links{margin-top:auto;padding-top:10px;font-size:12px}.odds-list{list-style:none;margin:0;padding:0;font-size:14px}.odds-list li{display:grid;grid-template-columns:170px minmax(0,1fr);grid-gap:20px;gap:20px;padding:9px 0;border-bottom:1px solid var(--rule)}.odds-list span{color:var(--muted)}.odds-more{margin-left:0}.note-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:30px 26px;gap:30px 26px;margin-bottom:44px}.note-card p{font-size:13px;margin-bottom:6px}.note-card .eyebrow{font-size:11px;margin:14px 0 3px}.note-card h3{font-size:17px}.note-card .tech{font-size:11px;margin-top:8px}.note-card .note-illustration{position:relative;display:block;padding:14px 12px 34px;background:var(--wash);border:1px solid var(--rule);border-radius:5px;text-decoration:none;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}.note-card:hover .note-illustration{transform:translateY(-2px);border-color:#c8d0c2;box-shadow:0 6px 18px rgba(40,50,40,.08)}.note-play{position:absolute;left:12px;right:12px;bottom:9px;font-size:10.5px;color:var(--link);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.anim-draw{stroke-dasharray:1;animation:draw-path 6s ease-in-out infinite}.anim-prune{animation:prune 6s ease-in-out infinite}.anim-grow{transform-box:fill-box;transform-origin:left center;animation:grow-bar 5s ease-in-out infinite alternate}.grow-1{animation-delay:-1.2s}.grow-2{animation-delay:-2.4s}.grow-3{animation-delay:-3.6s}.static-point{display:none}@keyframes draw-path{0%,8%{stroke-dashoffset:1}45%,to{stroke-dashoffset:0}}@keyframes prune{0%,45%{opacity:1}60%,88%{opacity:.15}to{opacity:1}}@keyframes grow-bar{0%{transform:scaleX(.45)}to{transform:scaleX(1.15)}}@media (prefers-reduced-motion:reduce){.anim-draw,.anim-grow,.anim-prune{animation:none;stroke-dashoffset:0}.anim-motion{display:none}.static-point{display:inline}.note-card .note-illustration,.project-visual{transition:none}}.book-feature{display:grid;grid-template-columns:230px minmax(0,1fr);grid-gap:44px;gap:44px;align-items:center;padding:30px 32px;background:var(--wash);border:1px solid var(--rule);border-radius:5px}.book-stack{position:relative;display:block;aspect-ratio:148/210;margin:8px 26px 8px 4px}.book-stack img{position:absolute;inset:0;width:100%;height:100%;border-radius:2px;box-shadow:0 2px 10px rgba(30,40,30,.16);transition:transform .35s ease}.book-stack .back-2{transform:rotate(7deg) translate(24px,4px)}.book-stack .back-1{transform:rotate(3.5deg) translate(12px,2px)}.book-stack:hover .back-2{transform:rotate(10deg) translate(40px,6px)}.book-stack:hover .back-1{transform:rotate(5deg) translate(22px,3px)}.book-stack:hover .book-cover{transform:translateY(-3px)}.book-cover{box-shadow:0 2px 10px rgba(30,40,30,.18);border-radius:2px}.book-title{font-size:22px;font-weight:600;letter-spacing:-.4px;margin:0 0 4px}.book-title a{color:inherit;text-decoration:none}.book-title a:hover{color:var(--link);text-decoration:underline}.book-subtitle{color:#434e43;font-size:15px}.book-feature p{font-size:14px}.book-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:12px 24px;gap:12px 24px;margin:18px 0;padding:14px 0;border-block:1px solid var(--rule)}.book-facts dt{font-size:11px;color:var(--muted)}.book-facts dd{margin:1px 0 0;font-size:13px;font-weight:500}.book-cta{font-size:14px;font-weight:500}.book-hero{display:grid;grid-template-columns:minmax(0,1fr) 250px;grid-gap:52px;gap:52px;align-items:start;padding-bottom:34px}.book-hero h1{font-size:clamp(32px,4.4vw,46px)}.hero-cover{width:100%;height:auto;margin-top:44px;transform:rotate(1.5deg)}.book-viewer{margin:0;padding:20px 22px 16px;border:1px solid var(--rule);background:#f7f8f4;border-radius:5px}.book-viewer:focus-visible{outline:2px solid var(--link);outline-offset:4px}.viewer-heading{display:flex;justify-content:space-between;gap:16px;font-size:12px;color:var(--muted);margin-bottom:14px}.viewer-heading span:first-child{color:var(--ink);font-weight:600}.spread{display:grid;grid-template-columns:1fr 1fr;grid-gap:3px;gap:3px;max-width:700px;margin:0 auto;padding:10px;background:#e3e6de;border-radius:3px}.spread-page{display:block;background:#fff;box-shadow:0 1px 4px rgba(30,40,30,.14)}.spread-page img{width:100%;height:auto}.spread-page:first-child{box-shadow:inset -12px 0 14px -12px rgba(0,0,0,.18),0 1px 4px rgba(30,40,30,.14)}.viewer-controls{justify-content:center}.book-viewer button{min-height:36px;padding:7px 12px;border:1px solid #b7c2b3;border-radius:0;background:#fff;color:var(--link);cursor:pointer}.book-viewer button:hover:not(:disabled),.book-viewer button[aria-pressed=true]{background:#e7eee4;border-color:var(--link)}.book-viewer button:disabled{color:#999;border-color:#dcdfd7;cursor:default}.spread-tabs{display:flex;gap:10px;overflow-x:auto;padding:4px 2px 10px;scroll-snap-type:x proximity}.spread-tabs button{flex:0 0 96px;display:flex;flex-direction:column;align-items:center;gap:6px;padding:8px 6px!important;font-size:10px;line-height:1.3;text-align:center;scroll-snap-align:start}.spread-tabs img{width:58px;height:auto;box-shadow:0 1px 3px rgba(0,0,0,.15)}.book-viewer figcaption{border-top:1px solid var(--rule);margin-top:8px;padding-top:10px;font-size:11px;color:var(--muted)}.book-parts{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:30px 40px;gap:30px 40px}.book-parts>li .eyebrow{margin-bottom:0}.book-parts h3{font-size:17px;margin-bottom:2px}.part-goal{font-size:13px;color:var(--muted)}.chapter-list{list-style:none;margin:8px 0 0;padding:0}.chapter-list li{display:grid;grid-template-columns:26px minmax(0,1fr);grid-gap:6px;gap:6px;padding:6px 0;border-top:1px solid var(--rule);font-size:13px}.chapter-list strong{font-weight:500}.chapter-list li:not(.drafted) strong{font-weight:400;color:var(--muted)}.chapter-number{color:var(--muted);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.drafted .chapter-number{color:var(--link);font-weight:600}.chapter-tagline{display:block;font-size:12px;color:var(--muted);font-style:italic}.chapter-status{display:inline-block;font-size:10px;color:#8b9087;margin-left:8px}.case-visual{max-width:760px;margin:6px auto 20px}.phone-gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:18px;gap:18px;margin:30px 0 8px}.phone-gallery figure{margin:0}.phone-gallery img{width:100%;height:auto;border:6px solid #22271f;border-radius:16px;background:#22271f}.phone-gallery figcaption{font-size:11px;color:var(--muted);text-align:center;margin-top:7px}.fun-facts{list-style:none;margin:18px 0 0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:10px 24px;gap:10px 24px;font-size:14px}.fun-facts li{display:flex;align-items:baseline;gap:10px}.fun-facts li>span{flex:0 0 44px;font-size:12px;color:var(--link);text-align:center;white-space:nowrap}.writing-stats{border-top:1px solid var(--rule);margin-bottom:4px}@media (max-width:820px){.build-grid,.note-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.project-detail.has-visual,.project.has-visual{grid-template-columns:minmax(0,1fr) 220px;gap:24px}}@media (max-width:600px){.project-detail.has-visual,.project.has-visual{grid-template-columns:minmax(0,1fr);gap:16px}.project-detail.has-visual .visual-link,.project.has-visual .visual-link{grid-row:1}.build-grid,.note-grid{grid-template-columns:minmax(0,1fr);gap:34px}.note-card .note-illustration{padding:10px 10px 30px}.book-feature{grid-template-columns:minmax(0,1fr);gap:24px;padding:24px 20px}.book-stack{width:150px;margin:4px 0 4px 6px}.book-facts{gap:8px}.book-facts,.book-hero{grid-template-columns:minmax(0,1fr)}.book-hero{gap:20px}.hero-cover{width:170px;margin:0;order:-1;transform:none}.book-viewer{padding:14px 10px 12px;margin-inline:-4px}.spread{padding:5px;gap:2px}.book-parts,.odds-list li{grid-template-columns:minmax(0,1fr)}.odds-list li{gap:0}.fun-facts{grid-template-columns:minmax(0,1fr)}.phone-gallery{gap:10px}.phone-gallery img{border-width:4px;border-radius:12px}}@media print{.book-stack,.book-viewer,.note-illustration,.phone-gallery,.project-visual{display:none}.book-feature,.project-detail.has-visual,.project.has-visual{display:block}}.research-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:30px 34px;gap:30px 34px}.research-org .eyebrow{font-size:11px;margin-bottom:3px}.research-org h2,.research-org h3{margin-bottom:6px}.research-org h3{font-size:19px}.research-tagline{color:#434e43}.research-grid .research-tagline{font-size:14px;min-height:72px}.research-stats{display:flex;flex-wrap:wrap;gap:8px 26px;margin:14px 0 18px}.research-stats dt{font-size:17px;font-weight:600;color:var(--link);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.research-stats dd{margin:0;font-size:11px;color:var(--muted)}.research-status{font-size:12px;color:#6d5415;background:#f7f1e0;border-left:2px solid #d4b35a;padding:8px 12px;margin:14px 0 0}.research-org .card-links{margin-top:14px}.research-chart{margin:0 0 18px;padding:16px 18px 12px;background:#f7f8f4;border:1px solid var(--rule);border-radius:5px;color:var(--ink)}.research-chart svg{display:block;width:100%;height:auto;margin:8px 0 4px}.chart-title{font-size:12px;font-weight:600;line-height:1.5}.chart-source{font-size:10px;color:var(--muted);margin:6px 0 0}.chart-note{font-size:12px;margin:8px 0 0}.chart-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:18px;gap:18px}.coverage-grids{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:16px;gap:16px;margin-top:10px}.research-grid .coverage-grids{grid-template-columns:minmax(0,1fr);gap:12px}.coverage-table{width:100%;border-collapse:separate;border-spacing:2px;table-layout:fixed;font-size:11px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.coverage-table caption{text-align:left;font-size:11px;color:var(--muted);margin-bottom:3px}.coverage-table thead th{font-weight:400;font-size:9.5px;color:var(--muted);padding:0 0 2px}.coverage-table tbody th{font-weight:400;font-size:10px;text-align:left;padding-right:4px;width:34%;line-height:1.25}.coverage-table td{text-align:center;height:26px;border-radius:2px}.coverage-table td.cell-zero{box-shadow:inset 0 0 0 1px #dfe3da;color:#a4aa9f}.coverage-table td.cell-na{background:repeating-linear-gradient(135deg,#eef0ea 0 4px,#f7f8f4 4px 8px);color:#9aa396;font-size:9px}.studies-heading{margin:30px 0 10px}.study-list{margin:0;padding-left:22px}.study-list li{padding:7px 0 7px 4px;border-bottom:1px solid var(--rule);font-size:14px}.study-list strong{font-weight:600;margin-right:10px}.study-list span{color:var(--muted)}section .research-org+.research-org{margin-top:0}@media (max-width:820px){.chart-pair,.research-grid{grid-template-columns:minmax(0,1fr)}.research-grid .research-tagline{min-height:0}}@media (max-width:600px){.research-chart{padding:12px 10px 10px;margin-inline:-4px}.coverage-grids{grid-template-columns:minmax(0,1fr)}.study-list strong{display:block}}@media print{.research-chart{page-break-inside:avoid;break-inside:avoid}}.chart-narrow{max-width:560px}.live{padding:0 0 34px;border-bottom:0}.github-activity{padding:20px 22px 14px;background:#f7f8f4;border:1px solid var(--rule);border-radius:5px}.live-heading{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:4px 20px;margin-bottom:10px}.live-heading .eyebrow{margin:0;font-size:12px}.live-summary{margin:0;font-size:13px;color:var(--muted)}.live-summary strong{color:var(--ink);font-weight:600}.heatmap-scroll{overflow-x:auto;scrollbar-width:thin}.heatmap{display:block;max-width:none;margin:0 auto}.heatmap rect{cursor:pointer;transition:stroke .1s}.heatmap rect.is-selected,.heatmap rect:hover{stroke:var(--ink);stroke-width:1.5}.heatmap-label{font-size:9px;fill:#8b9087}.level-0{fill:#e7eae2;background:#e7eae2}.level-1{fill:#c3d6be;background:#c3d6be}.level-2{fill:#8fb389;background:#8fb389}.level-3{fill:#5a8a5c;background:#5a8a5c}.level-4{fill:#315b46;background:#315b46}.heatmap-footer{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:6px 20px;margin-top:8px;font-size:12px}.heatmap-footer p{margin:0}.heatmap-readout{min-height:20px;color:var(--muted)}.heatmap-readout strong{color:var(--link);font-weight:600}.heatmap-legend{display:flex;align-items:center;gap:3px;color:#8b9087;font-size:11px}.heatmap-legend .swatch{width:10px;height:10px;border-radius:2px}.heatmap-legend .swatch:first-child{margin-left:4px}.heatmap-legend .swatch:last-child{margin-right:4px}.live-row{display:grid;grid-template-columns:minmax(0,1fr) 320px;grid-gap:16px;gap:16px;margin-top:16px;align-items:start}.recent-commits{padding:16px 20px 10px;border:1px solid var(--rule);border-radius:5px}.recent-commits .eyebrow{font-size:12px;margin-bottom:6px}.recent-commits ol{list-style:none;margin:0;padding:0}.recent-commits li{display:flex;flex-wrap:wrap;justify-content:space-between;gap:0 14px;padding:7px 0;border-top:1px solid var(--rule);font-size:13px}.recent-commits li:first-child{border-top:0}.commit-message{color:var(--ink);text-decoration:none;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}.commit-message:hover{color:var(--link);text-decoration:underline}.commit-meta{font-size:11px;color:var(--muted);white-space:nowrap}.commit-meta a{color:inherit}.language-dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:5px;vertical-align:0}.now-playing{display:grid;grid-template-columns:72px minmax(0,1fr);grid-gap:14px;gap:14px;align-items:center;padding:14px;border:1px solid var(--rule);border-radius:5px;background:#f7f8f4}.now-playing.is-empty{display:block;font-size:12px}.now-playing.is-empty p{margin:0}.np-art{display:block;width:72px;height:72px;border-radius:4px;overflow:hidden;background:#e3e6de}.np-art img{width:100%;height:100%;object-fit:cover}.np-text{min-width:0}.np-status{display:flex;align-items:center;gap:7px;margin:0 0 3px;font-size:11px}.np-title{display:block;font-weight:600;font-size:14px;color:var(--ink);text-decoration:none;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.np-title:hover{color:var(--link);text-decoration:underline}.np-artist{margin:0;font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.np-progress{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;grid-gap:7px;gap:7px;margin-top:7px;font-size:10px;color:#8b9087;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.np-track{height:3px;background:#dfe3da;border-radius:2px;overflow:hidden}.np-track div{height:100%;background:var(--link);transition:width 1s linear}.equalizer{display:inline-flex;align-items:flex-end;gap:2px;height:10px}.equalizer i{width:2.5px;height:100%;background:#1db954;border-radius:1px;transform-origin:bottom;animation:eq 1s ease-in-out infinite}.equalizer i:nth-child(2){animation-delay:-.35s}.equalizer i:nth-child(3){animation-delay:-.7s}@keyframes eq{0%,to{transform:scaleY(.3)}50%{transform:scaleY(1)}}.now-playing.is-loading .np-text span{display:block;height:10px;margin:6px 0;width:70%;background:#e7eae2;border-radius:2px}.now-playing.is-loading .np-text span+span{width:45%}@media (prefers-reduced-motion:reduce){.equalizer i{animation:none;transform:scaleY(.7)}.np-track div{transition:none}}@media (max-width:820px){.live-row{grid-template-columns:minmax(0,1fr)}}@media (max-width:600px){.github-activity{padding:14px 12px 10px;margin-inline:-4px}.recent-commits{padding:12px 14px 6px}.commit-message{white-space:normal}}@media print{.live{display:none}}.live-row:not(:has(.now-playing)){grid-template-columns:minmax(0,1fr)}