@font-face{font-family:Newsreader;src:url("fonts/newsreader-latin.woff2") format("woff2");font-style:normal;font-weight:400 600;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url("fonts/plex-sans-latin.woff2") format("woff2");font-style:normal;font-weight:400 600;font-display:swap}
:root{--paper:#f6f4ef;--ink:#242923;--muted:#6b7067;--red:#963d31;--rule:#d4d6cc;--wash:#eeeee7;--serif:Newsreader,Georgia,serif;--sans:"IBM Plex Sans",sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.65 var(--sans);-webkit-font-smoothing:antialiased}
::selection{background:#e4d9ca;color:var(--ink)}
a{color:inherit;text-decoration-color:#a4a79b;text-underline-offset:.2em;text-decoration-thickness:1px}
a:hover{color:var(--red);text-decoration-color:currentColor}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--red);outline-offset:5px}
h1,h2,h3,p,ul,ol{margin-top:0}
h1,h2,h3{font-family:var(--serif);font-weight:450;letter-spacing:-.025em}
h1{font-size:clamp(38px,5vw,58px);line-height:1.08;margin-bottom:24px;text-wrap:balance}
h2{font-size:32px;line-height:1.2;margin-top:48px;margin-bottom:20px}
h3{font-size:25px;line-height:1.25}
p{margin-bottom:24px}
small,.small{font-size:14px;color:var(--muted)}
b,strong{font-weight:600}
del,ins{color:var(--red)}
ins{text-decoration:none}
img,video{max-width:100%;height:auto}
audio{width:100%;max-width:520px}
pre{overflow-x:auto;max-width:100%;padding:20px 24px;background:var(--wash);border:1px solid var(--rule);font:13px/1.65 ui-monospace,SFMono-Regular,Consolas,monospace;tab-size:2}
code{font: .8em/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;overflow-wrap:anywhere}
blockquote{margin:32px 0;padding:4px 0 4px 24px;border-left:2px solid var(--red);color:var(--muted)}
hr{border:0;border-top:1px solid var(--rule);margin:40px 0}
button,input,select{font:inherit;color:var(--ink)}
button,select,input{border:1px solid #b7bbaf;border-radius:2px;background:transparent;padding:9px 12px}
select{min-width:0;max-width:100%}
button{cursor:pointer;background:var(--wash);font-size:14px;line-height:1.4}
button:hover{border-color:var(--ink);background:#e5e7dd}
button:disabled{cursor:default;opacity:.5}
input{background:#fcfbf8;max-width:100%;min-width:0}
label{font-size:14px}
table{border-collapse:collapse;max-width:100%;font:15px/1.5 var(--sans);margin:24px 0}
th,td{padding:10px 14px;border-bottom:1px solid var(--rule);text-align:left;vertical-align:top}
th{font-weight:600;color:var(--muted)}
td.n{text-align:right;font-variant-numeric:tabular-nums}
.table-wrap,.tw{overflow-x:auto;max-width:100%}
.table-wrap table{min-width:420px;width:100%}
.skip-link{position:absolute;top:8px;left:16px;transform:translateY(-150%);padding:8px 12px;background:var(--paper);z-index:10}
.skip-link:focus{transform:translateY(0)}
.site-header,.site-footer,.page{width:min(1120px,calc(100% - 96px));margin-inline:auto}
.site-header{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:28px 0 24px;border-bottom:1px solid var(--rule)}
.wordmark{font:450 35px/1 var(--serif);letter-spacing:-.055em;text-decoration:none}
.wordmark::after{content:".";color:var(--red)}
.site-nav{display:flex;align-items:center;flex-wrap:wrap;gap:24px;font-size:14px;line-height:1.5}
.site-nav a{text-decoration:none;color:var(--muted)}
.site-nav a:hover,.site-nav a[aria-current="page"]{color:var(--ink)}
.site-nav a[aria-current="page"]{text-decoration:underline;text-decoration-color:var(--red);text-underline-offset:7px}
.site-nav .pulse-link{padding-left:24px;border-left:1px solid var(--rule)}
.page{padding-top:68px;padding-bottom:24px}
.reading-page{max-width:800px}
.eyebrow{font:500 12px/1.4 var(--sans);letter-spacing:.11em;text-transform:uppercase;color:var(--muted);margin-bottom:24px}
.intro{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:88px;align-items:start;padding-bottom:58px}
.intro h1{font-size:clamp(44px,5.4vw,72px);max-width:730px;margin-bottom:28px;line-height:1.02}
.intro .lead{font:400 26px/1.38 var(--serif);max-width:630px;margin-bottom:24px}
.intro .bio{font-size:15px;max-width:640px;color:var(--muted);margin-bottom:0}
.correction{margin-top:25px}
.correction img{display:block;width:166px;margin:0 auto 24px}
.correction p{font-size:13px;line-height:1.65;color:var(--muted);margin-bottom:0}
.section-heading{display:flex;align-items:baseline;justify-content:space-between;gap:24px;border-top:1px solid var(--rule);padding-top:24px;margin-top:8px;margin-bottom:20px}
.section-heading h2{font-size:31px;margin:0}
.section-heading a{font-size:13px;color:var(--muted)}
.experiments{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;padding-bottom:48px}
.experiment{position:relative;display:grid;grid-template-columns:25px 1fr;column-gap:14px;padding-top:6px;text-decoration:none}
.experiment .number{padding-top:4px;font-size:11px;letter-spacing:.03em;color:var(--muted);font-variant-numeric:tabular-nums}
.experiment h3{font-size:24px;margin:0 0 10px}
.experiment p{font-size:14px;line-height:1.55;color:var(--muted);margin:0}
.experiment .arrow{font:17px/1 var(--sans);margin-left:8px;color:var(--red)}
.experiment:hover h3{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
.article-list{list-style:none;padding:0;margin:0 0 48px}
.article-row{border-bottom:1px solid var(--rule);padding:22px 0}
.article-row a{display:grid;grid-template-columns:minmax(0,1fr) 104px;align-items:baseline;gap:32px;text-decoration:none}
.article-row .article-title{font:450 25px/1.25 var(--serif);letter-spacing:-.015em;max-width:770px}
.article-row a:hover .article-title{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
.article-row time{font-size:12px;font-variant-numeric:tabular-nums;color:var(--muted);text-align:right;white-space:nowrap}
.article-row p{font-size:14px;line-height:1.6;max-width:760px;margin:12px 136px 0 0;color:var(--muted)}
.index-intro{max-width:680px;font:400 24px/1.4 var(--serif);margin-bottom:38px}
.notes{display:grid;grid-template-columns:1fr 1fr;gap:56px;margin-bottom:44px}
.notes ul{list-style:none;padding:0;margin:0}
.notes li{font-size:15px;margin-bottom:22px}
.notes .correction-note{border-left:1px solid var(--rule);padding-left:32px}
.notes img{margin-top:16px;border:1px solid var(--rule)}
.project-link{font-size:14px;color:var(--muted);margin-bottom:24px}
.article-header{border-bottom:1px solid var(--rule);padding-bottom:28px;margin-bottom:34px}
.article-header h1{max-width:800px}
.article-meta{font-size:13px;line-height:1.7;color:var(--muted);margin-bottom:0}
.article-meta a{overflow-wrap:anywhere}
.article-body{font:400 21px/1.6 var(--serif)}
.article-body p{margin-bottom:28px}
.article-body h2{font-size:31px;margin-top:48px}
.article-body h3{font-size:25px}
.article-body ul,.article-body ol{padding-left:24px}
.article-body li{margin-bottom:8px}
.article-body small{font:13px/1.65 var(--sans);display:inline-block;margin-top:10px}
.article-body img,.article-body video{display:block;margin:32px 0 12px}
.article-body p img{margin-top:0}
.article-body table{width:100%}
.related{border-top:1px solid var(--rule);margin-top:52px;padding-top:28px}
.related h2{margin:0 0 22px;font-size:27px}
.related ul{display:grid;grid-template-columns:1fr 1fr;gap:18px 36px;list-style:none;padding:0;font-size:14px}
.site-footer{display:flex;justify-content:space-between;align-items:start;gap:48px;padding:30px 0 36px;border-top:1px solid var(--rule);margin-top:54px;font-size:12px;color:var(--muted)}
.site-footer p{margin:0;max-width:365px}
.footer-links{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:10px 18px;max-width:475px}
.footer-links a{text-decoration:none}
.footer-links a:hover{text-decoration:underline}
.tool-page>h1{max-width:790px}
.tool-page>p{max-width:770px}
.tool-page h2{font-size:29px}
.tool-page #game{margin:34px 0 48px;padding:28px;border:1px solid var(--rule);background:#f0f1e9}
.tool-page #end{margin:36px 0;padding:24px;border-left:2px solid var(--red);background:var(--wash)}
.tool-page #end h2{margin-top:0}
.tool-page #wrap{min-width:0;max-width:100%;margin:28px 0;padding:20px;border:1px solid var(--rule);background:#eeeee7}
.puzzle-controls{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:12px;margin:28px 0}
.puzzle-controls select{width:100%}
.tool-page #msg{font-size:14px;color:var(--muted)}
.notfound{padding-top:100px;padding-bottom:100px}
@media(max-width:900px){.intro{gap:40px;grid-template-columns:minmax(0,1fr) 180px}.experiments{gap:22px}.experiment{display:block}.experiment .number{display:block;margin-bottom:10px}.experiment h3{font-size:22px}.notes{gap:32px}.site-nav{gap:18px}.site-nav .pulse-link{padding-left:18px}}
@media(max-width:650px){.site-header,.site-footer,.page{width:calc(100% - 40px)}.site-header{align-items:start;gap:24px;padding:24px 0 20px}.wordmark{font-size:32px}.site-nav{gap:12px 16px;justify-content:flex-end;max-width:250px;font-size:12px}.site-nav .pulse-link{padding-left:0;border:0}.page{padding-top:44px}.intro{display:block;padding-bottom:40px}.intro h1{font-size:49px}.intro .lead{font-size:24px}.intro .bio{font-size:14px}.correction{display:flex;align-items:center;gap:22px;margin-top:36px}.correction img{width:100px;margin:0;flex-shrink:0}.correction p{font-size:12px;max-width:340px}.experiments{display:block;padding-bottom:26px}.experiment{display:grid;grid-template-columns:24px 1fr;gap:14px;padding:20px 0;border-bottom:1px solid var(--rule)}.experiment .number{padding-top:4px}.experiment h3{margin-bottom:7px;font-size:24px}.section-heading{gap:15px}.section-heading h2{font-size:29px}.section-heading a{font-size:12px;white-space:nowrap}.article-row{padding:20px 0}.article-row a{display:flex;flex-direction:column-reverse;gap:6px}.article-row time{text-align:left;font-size:11px}.article-row .article-title{font-size:24px;line-height:1.25}.article-row p{margin:10px 0 0;font-size:13px}.notes{display:block}.notes .correction-note{border-left:0;padding-left:0;border-top:1px solid var(--rule);padding-top:22px;margin-top:28px}.site-footer{display:block;margin-top:36px;padding-top:24px}.footer-links{justify-content:flex-start;margin-top:20px;gap:10px 16px}.article-body{font-size:20px}.article-body h2{font-size:29px}.article-header{padding-bottom:24px}.related ul{grid-template-columns:1fr;gap:15px}.index-intro{font-size:22px}pre{padding:16px;font-size:12px}.tool-page #game{padding:20px}.tool-page #wrap{padding:12px}.tool-page>h1{font-size:40px}th,td{padding:8px 10px}.notfound{padding-top:70px;padding-bottom:70px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{body{background:white;color:black;font-size:12pt}.site-header,.site-footer,.skip-link,.related{display:none}.page{width:100%;max-width:none;padding:0}.article-body{font-size:12pt}h1{font-size:26pt}h2{font-size:19pt;break-after:avoid}img,video,table{break-inside:avoid}a{color:black}pre{white-space:pre-wrap;border:1px solid #aaa}.article-header{margin-top:0}.article-row a{display:block}.article-row time{text-align:left}}