styles.css

:root{font-family:Arial,Helvetica,sans-serif;color:#23352d;background:#f8f5ed;font-size:16px;line-height:1.55;--ink:#23352d;--green:#234e3c;--paper:#fffdf7;--line:#d8d9ce;--muted:#56635b;--gold:#d6a746}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #9b4d18;outline-offset:4px}.skip{position:absolute;top:-80px;left:12px;background:white;padding:12px;z-index:3}.skip:focus{top:8px}.masthead{max-width:1344px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:28px 40px;border-bottom:1px solid var(--line)}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;font-size:12px;font-weight:800;letter-spacing:1.4px}.brand small{display:block;font-size:9px;letter-spacing:1.9px;font-weight:500;margin-top:3px}.brand-mark{font:bold 35px Georgia,serif;border:1px solid var(--ink);width:51px;height:51px;text-align:center;line-height:48px}.edition{font-size:11px;letter-spacing:1.5px}.edition span{padding:0 12px;color:#738277}main{max-width:1264px;margin:0 auto;padding:36px 0 54px}h1,h2,h3,p{margin:0}h1,h2{font-family:Georgia,'Times New Roman',serif;font-weight:400;line-height:1.08;letter-spacing:-1.3px}h1{font-size:clamp(40px,5.5vw,70px)}h2{font-size:34px}h3{font-size:17px;line-height:1.4}p+p{margin-top:12px}.eyebrow{font-size:11px;text-transform:uppercase;letter-spacing:2px;font-weight:700;color:var(--muted);margin-bottom:15px}.intro{display:grid;grid-template-columns:1.1fr 1fr;gap:70px;padding:40px 0 65px;align-items:center}.intro h1{max-width:560px}.intro h1 em{color:var(--green)}.intro .lede{font-size:18px;max-width:490px;margin:25px 0 30px;color:var(--muted)}.button{background:var(--green);color:white;border:1px solid var(--green);padding:12px 21px;min-height:48px;border-radius:3px;font-weight:600}.button:hover{background:#163b2a}.button.secondary{background:transparent;color:var(--green);border-color:#8b9b8e}.button.secondary:hover{background:#e9eee2}.text-button{border:0;background:transparent;color:var(--green);text-decoration:underline;text-underline-offset:4px;min-height:44px;padding:8px 3px}.smallprint{font-size:12px;color:var(--muted);margin-top:12px}.hero-sheet{background:var(--paper);border:1px solid var(--line);padding:30px;box-shadow:9px 9px 0 #e9e8dc;transform:rotate(1deg)}.hero-sheet blockquote{font:27px/1.3 Georgia,serif;margin:18px 0 22px}.mini-bars{display:flex;gap:20px;height:140px;align-items:end;border-bottom:1px solid #819183;padding:0 40px}.mini-bars i{display:block;background:var(--green);width:90px;height:65%;position:relative}.mini-bars i:last-child{height:95%;background:var(--gold)}.mini-bars span{position:absolute;top:-25px;left:12px;font-style:normal;font-size:14px}.sheet-note{margin-top:22px;font-size:14px;color:var(--muted)}.intro-points{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;border-top:1px solid var(--line);padding-top:25px}.intro-points span{display:block;font:24px Georgia,serif;margin-bottom:6px}.intro-points p{font-size:14px;color:var(--muted)}.lesson-top{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:25px}.lesson-top h1{font-size:44px}.progress-copy{font-size:12px;text-align:right;color:var(--muted)}progress{width:150px;height:7px;accent-color:var(--green);display:block;margin:8px 0 0 auto}.tabs{display:grid;grid-template-columns:repeat(4,1fr);border-block:1px solid var(--line);margin-bottom:30px}.tabs button{background:transparent;border:0;border-bottom:3px solid transparent;text-align:left;padding:17px 10px;min-height:62px;color:var(--muted);font-size:13px}.tabs button[aria-current=step]{border-bottom-color:var(--green);color:var(--green);font-weight:700;background:#edf0e6}.tabs b{font-size:11px;margin-right:9px}.work-layout{display:grid;grid-template-columns:minmax(0,1fr) 284px;gap:35px;align-items:start}.case-title{display:flex;gap:18px;align-items:start}.case-number{font:italic 35px Georgia,serif;color:#778878;border-right:1px solid var(--line);padding-right:18px}.case-title h2{font-size:32px}.case-title .eyebrow{margin:0 0 8px}.description{margin:20px 0;max-width:740px;color:var(--muted);font-size:15px}.fictional{font-size:10px;letter-spacing:1.3px;color:var(--muted);text-transform:uppercase}.claim{border-left:3px solid var(--gold);padding:9px 16px;margin:20px 0;background:#f1eddf;font:19px/1.4 Georgia,serif}.experiment{background:var(--paper);border:1px solid var(--line);padding:23px;margin:20px 0}.experiment-heading{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-bottom:15px}.experiment-heading h3{font-size:14px}.controls{display:flex;flex-wrap:wrap;gap:16px;padding:15px 0;align-items:end}.control{display:grid;gap:5px;font-size:12px;color:var(--muted);flex:1;min-width:135px}.control select,.control input[type=number]{width:100%;border:1px solid #879b8c;border-radius:3px;background:white;color:var(--ink);min-height:44px;padding:8px}.control input[type=range]{min-height:44px;accent-color:var(--green);width:100%;margin:0}.chart-pair{display:grid;grid-template-columns:1fr 1fr;gap:15px}.chart-title{font-size:12px;font-weight:600;margin-bottom:5px}.chart{display:block;width:100%;height:auto;overflow:visible}.chart text{font-family:Arial,Helvetica,sans-serif;fill:var(--ink);font-size:12px}.chart .grid{stroke:#e1e3d9;stroke-width:1}.chart .axis{stroke:#677b69}.chart .bar{fill:var(--green)}.chart .bar-alt{fill:#b17827}.metrics{display:flex;gap:18px;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:15px;padding-top:13px}.metric{font-size:12px;color:var(--muted)}.metric strong{display:block;font-size:22px;color:var(--ink);font-weight:500}.data-table{max-width:100%;overflow:auto;margin-top:12px}table{width:100%;border-collapse:collapse;font-size:12px;text-align:left}caption{text-align:left;margin:8px 0;color:var(--muted)}th,td{padding:8px 10px;border-bottom:1px solid var(--line)}th{font-weight:700}details{font-size:13px;margin-top:15px}summary{cursor:pointer;padding:9px 0;min-height:44px;text-decoration:underline;text-underline-offset:3px}.practice{padding:20px 0}.practice h3{margin-bottom:12px}.choice{display:flex;align-items:start;gap:11px;font-size:14px;padding:11px 13px;margin:8px 0;border:1px solid var(--line);background:#fffdf7;border-radius:3px;cursor:pointer;min-height:48px}.choice:has(input:checked){border-color:var(--green);background:#eaf0e4}.choice input{margin-top:5px;accent-color:var(--green);min-width:17px;min-height:17px}.practice-actions{display:flex;gap:17px;align-items:center;flex-wrap:wrap;margin-top:15px}.feedback{padding:14px 16px;border-left:3px solid #a55f24;background:#f3eadc;margin-top:15px;font-size:14px}.feedback.success{background:#e6efdf;border-color:var(--green)}.feedback:empty{display:none}.hint{font-size:14px;color:var(--muted);padding:14px;background:#f0efe4}.notebook{border-top:3px solid var(--green);padding-top:16px;position:sticky;top:20px}.notebook h3{font:25px Georgia,serif}.notebook>p{font-size:12px;color:var(--muted);margin:10px 0 20px}.note{padding:15px 0;border-top:1px solid var(--line)}.note strong{font-size:12px;display:block;margin-bottom:6px}.note p{font-size:12px;color:var(--muted)}.note textarea{width:100%;min-height:90px;resize:vertical;background:transparent;border:1px solid #a4afa0;padding:8px;font-size:13px;border-radius:3px}.note label{font-size:12px;display:block;margin:9px 0 5px}.continue{display:flex;justify-content:space-between;align-items:center;gap:16px;border-top:1px solid var(--line);padding-top:22px;margin-top:16px}.continue span{font-size:12px;color:var(--muted)}.composition{display:flex;height:30px;border:1px solid #738573;margin:8px 0;background:#e4bf73}.composition span{background:var(--green)}.legend{font-size:12px;display:flex;gap:20px;flex-wrap:wrap}.legend i{display:inline-block;width:11px;height:11px;background:var(--green);margin-right:5px}.legend .other{background:#e4bf73;border:1px solid #8f712f}.sample-compare{display:grid;grid-template-columns:1fr 1fr;gap:20px}.sample-compare p{font-size:13px}.transfer{max-width:860px}.transfer h2{margin-bottom:20px}.field{margin:20px 0}.field label{display:block;font-size:14px;font-weight:600;margin-bottom:5px}.field textarea{width:100%;min-height:95px;padding:12px;border:1px solid #889986;background:var(--paper);border-radius:3px;resize:vertical}.field small{color:var(--muted)}.completion{padding:30px;background:#e8eedf;border:1px solid #a5b49a;margin-top:25px}.completion h3{font:27px Georgia,serif;margin-bottom:13px}.completion li{margin:10px 0;font-size:14px}footer{border-top:1px solid var(--line);max-width:1264px;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:18px 0 30px;font-size:11px;color:var(--muted)}footer .text-button{font-size:12px;white-space:nowrap}[hidden]{display:none!important}.notice{background:#f0e3cc;padding:12px;margin-bottom:20px;font-size:14px}@media(max-width:1344px){main,footer{margin-left:40px;margin-right:40px}}@media(max-width:980px){.work-layout{grid-template-columns:minmax(0,1fr) 230px;gap:23px}.intro{gap:35px}.chart-pair{grid-template-columns:1fr}.chart-pair .chart{max-height:260px}.edition{display:none}}@media(max-width:760px){.masthead{padding:20px}main{margin:0;padding:25px 20px 35px}footer{margin:0 20px;align-items:start;flex-direction:column;gap:4px}.intro{grid-template-columns:1fr;padding:15px 0 40px;gap:30px}.intro h1{font-size:49px}.intro .lede{font-size:16px;margin:20px 0}.hero-sheet{padding:22px;transform:none;box-shadow:5px 5px 0 #e9e8dc}.intro-points{gap:16px}.intro-points span{font-size:20px}.intro-points p{font-size:12px}.lesson-top{align-items:start}.lesson-top h1{font-size:31px}.progress-copy{font-size:10px;max-width:110px}progress{width:100px}.tabs button{font-size:11px;padding:12px 5px;line-height:1.35}.tabs b{display:block;margin:0 0 4px}.work-layout{grid-template-columns:1fr;gap:28px}.notebook{position:static}.case-title h2{font-size:29px}.experiment{padding:15px}.chart-pair{grid-template-columns:1fr 1fr;gap:5px}.chart-pair .chart{max-height:none}.chart text{font-size:13px}.chart-title{font-size:11px}.control{min-width:110px}.sample-compare{gap:13px}.case-number{font-size:29px;padding-right:12px}.case-title{gap:12px}.metrics{gap:16px}.metric strong{font-size:20px}.experiment-heading{align-items:start}.continue{align-items:start}.continue .button{padding:10px 13px;font-size:13px}.continue span{max-width:120px}.transfer h2{font-size:29px}}@media(max-width:450px){.chart-pair{grid-template-columns:1fr}.chart-pair .chart{max-height:240px}.sample-compare{grid-template-columns:1fr}.intro-points{grid-template-columns:1fr}.intro-points>div{display:flex;gap:18px}.intro-points span{min-width:100px}.lesson-top .eyebrow{font-size:9px;letter-spacing:1px}.lesson-top h1{font-size:28px}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}
:where(.work-layout > div,.work-layout > aside,.experiment,.sample-compare > div,.chart-pair > div){min-width:0}
.data-table{width:100%;max-width:100%;overscroll-behavior-x:contain}