.reader-body *{box-sizing:border-box}
.reader-body{scroll-behavior:smooth}
.reader-body{margin:0;color:#173041;background:#f7f5ef;font:18px/1.65 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
.reader-body a{color:#075d65;text-underline-offset:3px;overflow-wrap:anywhere}
.reader-body a:focus-visible{outline:3px solid #b95c13;outline-offset:4px}
.reader-body .skip{position:absolute;left:1rem;top:-100px}
.reader-body .skip:focus{top:1rem;background:white;padding:10px;z-index:10}
.reader-body nav{max-width:1080px;margin:auto;padding:24px;display:flex;gap:16px;justify-content:space-between;flex-wrap:wrap;font-size:15px}
.reader-body main{max-width:1000px;margin:auto;padding:0 28px 60px}
.reader-body h1{font-size:clamp(2rem,4.6vw,3.7rem);line-height:1.13;letter-spacing:-.035em;margin:20px 0 28px}
.reader-body h2{font-size:1.8rem;line-height:1.25;margin:0 0 18px}
.reader-body h3{font-size:1.25rem;line-height:1.35}
.reader-body p{margin:14px 0}
.reader-body section.chapter{padding:38px 0;border-bottom:1px solid #c9d4ce}
.reader-body .kicker{text-transform:uppercase;letter-spacing:.12em;font-size:13px;font-weight:750;color:#075d65}
.reader-body .lead{font-size:1.22rem;max-width:820px}
.reader-body .intro{padding:40px 0 32px}
.reader-body .note{background:#ede7d8;border-left:5px solid #b56a29;padding:18px 22px}
.reader-body .toc{display:flex;flex-wrap:wrap;gap:10px 22px;margin:28px 0}
.reader-body .toc a{font-size:16px}
.reader-body .visual{margin:28px 0;background:#fff;border:1px solid #afc8bc;border-radius:16px;overflow:hidden;box-shadow:0 7px 0 #e1e9e1}
.reader-body .visual header{padding:22px 24px;background:#e9f1ea}
.reader-body .visual header h3{margin:6px 0 0;font-size:1.4rem}
.reader-body .visual .canvas{padding:24px}
.reader-body .cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.reader-body .cards.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.reader-body .card{padding:18px;border:1px solid #b6c9c3;background:#f7faf7;border-radius:10px;min-width:0}
.reader-body .card h4{margin:0 0 8px;line-height:1.35}
.reader-body .card p{font-size:16px;margin:8px 0}
.reader-body .big{font-size:1.9rem;font-weight:750;color:#075d65;line-height:1.2}
.reader-body .tag{font-size:13px;letter-spacing:.05em;font-weight:750;text-transform:uppercase}
.reader-body .flow{display:flex;flex-direction:column;gap:12px}
.reader-body .step{display:grid;grid-template-columns:42px 1fr;gap:12px;background:#f0f5f1;border:1px solid #bfd1c7;border-radius:10px;padding:16px}
.reader-body .step .num{font-size:1.5rem;font-weight:800;color:#075d65}
.reader-body .step h4{margin:0}
.reader-body .step p{margin:5px 0;font-size:16px}
.reader-body .bar{display:flex;height:28px;margin:12px 0;background:#d7e6df;border-radius:5px;overflow:hidden}
.reader-body .bar span{display:block;background:#0e7470}
.reader-body .bar span.cost{background:#b96b24}
.reader-body .track{margin:18px 0;padding:16px;border:1px solid #b6c9c3;border-radius:10px}
.reader-body .track .line{height:16px;background:#d6e5df;margin:16px 0;border-radius:5px}
.reader-body .track .line span{display:block;background:#0e7470;height:100%;border-radius:5px}
.reader-body .track p{font-size:16px}
.reader-body .equation{font-weight:700;padding:18px;background:#eaf0f5;border-radius:9px;overflow-wrap:anywhere}
.reader-body .visual figcaption{border-top:1px solid #d3ded5;padding:20px 24px;font-size:15px;line-height:1.6}
.reader-body .visual ul{margin:12px 0;padding-left:24px}
.reader-body ul,.reader-body ol{padding-left:25px}
.reader-body li{margin:8px 0}
.reader-body .sources li{font-size:15px;margin:16px 0}
.reader-body .sources span{display:block;color:#435968}
.reader-body footer{max-width:1000px;margin:auto;padding:30px 28px 45px;font-size:14px}
.reader-body .asset main{padding-top:20px}
.reader-body .asset .visual{margin-top:0}
.reader-body .compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.reader-body .compare h3{margin-top:0}
.reader-body .small{font-size:15px}
@media(max-width:650px){.reader-body{font-size:17px}
.reader-body main{padding:0 16px 40px}
.reader-body nav{padding:20px 16px}
.reader-body h2{font-size:1.5rem}
.reader-body .intro{padding-top:20px}
.reader-body .cards,.reader-body .cards.two,.reader-body .compare{grid-template-columns:1fr}
.reader-body .visual .canvas,.reader-body .visual header,.reader-body .visual figcaption{padding:18px}
.reader-body .big{font-size:1.7rem}
.reader-body .chapter{padding:28px 0}
.reader-body .toc{gap:12px 18px}
}
@media print{.reader-body{background:white;color:black}
.reader-body .visual{box-shadow:none}
.reader-body .toc,.reader-body nav,.reader-body .skip{display:none}
.reader-body a{color:inherit}
.reader-body .visual,.reader-body .card,.reader-body .step{break-inside:avoid}
}