:root{
  --paper:#f1ead9; --paper-2:#e8dfc8; --ink:#262a27; --graphite:#4a4d48;
  --pencil:#5c5b55; --green:#2f5d4e; --green-2:#24493d; --rule:#d6cbb1;
  --sand:#c9a96e; --focus:#1f4f8f;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
  color-scheme:light;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font:1.125rem/1.7 var(--serif);
  background-image:repeating-linear-gradient(to bottom,transparent 0 33px,rgba(120,100,60,.07) 33px 34px);
  overflow-wrap:break-word;
}
a{color:var(--green);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--green-2);text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:2px}
.skip{position:absolute;left:1rem;top:-4rem;background:var(--ink);color:var(--paper);padding:.5rem .8rem;z-index:10}
.skip:focus{top:1rem}

.masthead{border-bottom:1px solid var(--rule);background:rgba(241,234,217,.92)}
.topnav{max-width:68rem;margin:0 auto;padding:.75rem 1rem;display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap}
.home-link{font-family:var(--mono);font-size:.85rem;letter-spacing:.02em;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--green);padding:.35rem 0}
.home-link:hover{color:var(--green)}
.field-tag{font-family:var(--mono);font-size:.75rem;color:var(--pencil);text-transform:uppercase;letter-spacing:.12em}

main{padding:0 1rem}
article{max-width:42rem;margin:0 auto}
.title-block{position:relative;padding:3.5rem 0 2rem;text-align:left}
.contours{position:absolute;inset:0 auto auto 0;width:100%;height:9rem;fill:none;stroke:var(--sand);stroke-width:1;opacity:.55;z-index:-1}
.kicker,.byline,.fig-label{font-family:var(--mono);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--pencil);margin:0}
h1{font-size:clamp(2.2rem,7vw,3.6rem);line-height:1.05;font-weight:500;letter-spacing:-.01em;margin:.6rem 0 .8rem}
.dek{font-size:1.25rem;line-height:1.5;color:var(--graphite);font-style:italic;margin:0 0 1.2rem;max-width:34rem}
.byline::before{content:"— ";}

.toc{border:1px solid var(--rule);border-left:3px solid var(--green);padding:1rem 1.25rem;margin:1rem 0 2.5rem;background:rgba(255,252,243,.5)}
.toc-title{font-family:var(--mono);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--pencil);margin:0 0 .4rem;font-weight:400}
.toc ol{margin:0;padding-left:1.4rem;font-size:1rem;list-style:lower-roman}
.toc li{margin:.2rem 0}

.prose p{margin:0 0 1.15rem}
.lede::first-letter{float:left;font-size:3.4em;line-height:.85;padding:.08em .1em 0 0;color:var(--green)}
section{scroll-margin-top:1rem}
h2{font-size:clamp(1.45rem,4vw,1.8rem);line-height:1.2;font-weight:500;margin:3rem 0 1rem}
h2 .num{font-family:var(--mono);font-size:.7em;color:var(--green);margin-right:.4rem}
strong{font-weight:600}

.figure{margin:2rem -.25rem 2.25rem;padding:1.25rem;background:#f8f3e6;border:1px solid var(--rule);box-shadow:0 1px 0 var(--paper-2),0 12px 24px -20px rgba(40,40,30,.35)}
.fig-head{margin-bottom:.8rem}
.fig-warning{font-family:var(--mono);font-size:.8rem;line-height:1.5;color:var(--graphite);margin:.3rem 0 0}
.fig-head h3{font-size:1.3rem;font-weight:500;margin:.3rem 0 0;line-height:1.25}

.gl-controls{display:flex;flex-wrap:wrap;gap:.5rem;margin:.6rem 0 .8rem}
button{font:inherit;font-family:var(--mono);font-size:.82rem;cursor:pointer;min-height:44px;padding:.5rem .8rem;border:1px solid var(--graphite);background:transparent;color:var(--ink);border-radius:2px}
button:hover{background:var(--paper-2)}
button[aria-pressed="true"]{background:var(--green);border-color:var(--green);color:#fff}

.chart{display:block;width:100%;height:auto;overflow:visible}
.chart .grid path{stroke:var(--graphite);stroke-width:1.2;fill:none}
.chart .grid .contour{stroke:var(--sand);stroke-width:1;stroke-dasharray:2 5;opacity:.8}
.chart text{font-family:var(--mono);font-size:13px;fill:var(--ink)}
.chart .axis{fill:var(--pencil);font-size:12px}
.chart .note{font-size:11px;fill:var(--pencil);font-style:italic}
.chart .line path{fill:none;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round;transition:opacity .3s}
.line-linear path{stroke:var(--graphite);stroke-dasharray:.012 .012}
.line-uneven path{stroke:var(--green)}
.line-pause path{stroke:#8a5a2b}
.line-pause path.rest{stroke-dasharray:.02 .03;stroke-width:2}
.chart .line{transition:opacity .3s}
.chart[data-active="linear"] .line:not(.line-linear),
.chart[data-active="uneven"] .line:not(.line-uneven),
.chart[data-active="pause"] .line:not(.line-pause){opacity:.12}

@media (prefers-reduced-motion:no-preference){
  .js .line-uneven path,.js .line-pause path{stroke-dasharray:1;stroke-dashoffset:1;animation:draw 2.2s ease-out forwards}
  .js .line-pause path:nth-of-type(2){animation-delay:.9s}
  .js .line-pause path:nth-of-type(3){animation-delay:1.3s}
  .js .line-pause path.rest{animation-name:drawrest}
  .js .chart .line text{opacity:0;animation:fade .6s ease-out 1.8s forwards}
}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes drawrest{0%{stroke-dasharray:1;stroke-dashoffset:1}99%{stroke-dasharray:1;stroke-dashoffset:0}100%{stroke-dasharray:.02 .03;stroke-dashoffset:0}}
@keyframes fade{to{opacity:1}}

figcaption{font-size:1rem;margin-top:.8rem}
.gl-explain{font-style:italic;color:var(--graphite);border-left:2px solid var(--sand);padding-left:.75rem;margin:0 0 1rem}
.gl-key{margin:0}
.gl-key dt{font-family:var(--mono);font-size:.82rem;text-transform:uppercase;letter-spacing:.06em;color:var(--green);margin-top:.7rem}
.gl-key dd{margin:.2rem 0 0}

.dx-form fieldset{border:0;padding:0;margin:0 0 .8rem}
.dx-form legend{font-size:1rem;margin-bottom:.5rem;font-weight:600}
.dx-form label{display:flex;gap:.6rem;align-items:flex-start;padding:.55rem .4rem;font-size:1rem;line-height:1.45;border-bottom:1px dashed var(--rule);cursor:pointer}
.dx-form input{width:1.2rem;height:1.2rem;margin-top:.15rem;flex:none;accent-color:var(--green)}
.dx-status{font-family:var(--mono);font-size:.85rem;color:var(--pencil);margin:0 0 .6rem;min-height:1.2em}
.dx-cards{display:grid;gap:.8rem}
.dx-card{background:var(--paper);border:1px solid var(--rule);border-top:3px solid var(--green);padding:.9rem 1rem}
.dx-card h4{margin:0 0 .4rem;font-size:1.05rem;font-weight:600}
.dx-card ul{margin:0;padding-left:1.1rem;font-size:1rem}
.dx-card li{margin:.25rem 0}
.js .dx-card[data-hidden]{display:none}

.resolution{border-top:1px solid var(--rule);margin-top:3rem}
.principle{font-size:clamp(1.4rem,4.5vw,1.85rem);line-height:1.3;color:var(--green);font-style:italic;margin:1.5rem 0 !important;padding:.5rem 0 .5rem 1rem;border-left:3px solid var(--green)}
.return{margin:3rem 0 2rem;font-family:var(--mono);font-size:1rem}
.return a{display:inline-block;padding:.75rem 1rem;border:1px solid var(--green);text-decoration:none}
.return a:hover{background:var(--green);color:#fff}

.site-footer{border-top:1px solid var(--rule);padding:1.5rem 1rem 2.5rem;text-align:center;font-family:var(--mono);font-size:.82rem;color:var(--pencil)}

@media (min-width:768px){
  .figure{margin-left:-2rem;margin-right:-2rem;padding:1.5rem 2rem}
  .dx-cards{grid-template-columns:1fr 1fr}
}
@media (min-width:1200px){
  .figure#growth-lines{margin-left:-6rem;margin-right:-6rem}
}
@media (max-width:420px){
  body{font-size:1.06rem}
  .field-tag{display:none}
  .figure{margin-left:-.5rem;margin-right:-.5rem;padding:1rem .75rem}
}

.notfound{max-width:36rem;margin:0 auto;padding:4rem 0}