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@font-face{font-family:Figtree;src:url('fonts/Figtree.ttf') format('truetype');font-weight:300 900;font-display:swap}
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*{box-sizing:border-box}html{scroll-behavior:smooth;scrollbar-color:var(--ochre) var(--paper)}body{margin:0;background:var(--paper);color:var(--ink);font:18px/1.65 Figtree,Arial,sans-serif}::selection{background:var(--accent);color:var(--ink)}button,input{font:inherit}input{caret-color:var(--action)}a{color:inherit;text-underline-offset:.22em;text-decoration-thickness:1px}a:hover{text-decoration-thickness:2px}button,a,summary{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:wait;opacity:.7}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--ochre);outline-offset:4px}input:focus{outline:3px solid var(--ochre);outline-offset:3px}p,h1,h2,h3,figure{margin:0}p+p{margin-top:20px}h1,h2{font:500 clamp(38px,4.3vw,64px)/1.13 Literata,Georgia,serif;letter-spacing:-.03em;text-wrap:balance}h1{font-size:clamp(48px,6.1vw,86px);line-height:1.1}h1 em,h2 em{font-weight:500;color:var(--ochre)}h3{font-size:25px;line-height:1.3;font-weight:650;letter-spacing:-.015em}ul{padding-left:24px;margin:20px 0}li{margin:12px 0}strong{font-weight:650}.wrap{width:min(1240px,100%);margin:auto;padding-left:48px;padding-right:48px}.small,.footnote{font-size:14px;line-height:1.6;color:var(--secondary)}.lead{font-size:23px;line-height:1.5;letter-spacing:-.01em}.measure{max-width:var(--measure)}.skip{position:absolute;left:12px;top:-80px;padding:15px;background:var(--ink);color:white;z-index:50}.skip:focus{top:12px}.nav{border-bottom:1px solid var(--line)}.nav-inner{display:flex;gap:30px;align-items:center;justify-content:space-between;min-height:88px}.brand{font-size:23px;font-weight:650;text-decoration:none;white-space:nowrap}.nav nav{display:flex;gap:26px;font-size:15px}.button{display:inline-flex;align-items:center;justify-content:center;gap:15px;padding:15px 23px;background:var(--action);color:var(--white);border:0;border-radius:5px;min-height:50px;font-weight:650;line-height:1.35;text-decoration:none;transition:background .15s}.button:hover{background:#48310a}.nav-buy{font-size:15px;padding:11px 17px}.opening{padding-top:52px;padding-bottom:80px}.opening h1{max-width:1000px;margin-bottom:42px}.opening-spread{display:grid;grid-template-columns:minmax(0,.75fr) minmax(0,1fr);gap:100px;align-items:start}.cover{width:min(360px,100%);justify-self:center}.cover img{width:100%;height:auto;display:block}.cover figcaption{margin-top:14px;font-size:14px;line-height:1.5;color:var(--secondary)}.opening-offer>.lead{margin-bottom:20px}.opening-offer>p{max-width:var(--measure)}.purchase{margin-top:30px}.offer-price{display:flex;align-items:center;gap:24px;margin-bottom:22px}.offer-price strong{font-size:42px;line-height:1.1;letter-spacing:-.03em}.offer-price span{font-size:15px;line-height:1.4;color:var(--secondary)}label{display:block;font-size:16px;font-weight:650;margin-bottom:9px}input{display:block;width:100%;min-width:0;min-height:50px;border:1px solid #868e80;padding:12px 14px;border-radius:5px;background:var(--white);color:var(--ink)}input::placeholder{color:#667060}#emailHelp{margin-top:8px}.promo{margin:16px 0;font-size:14px}.promo summary{cursor:pointer;text-decoration:underline;text-underline-offset:.25em}.promo label{margin-top:14px}.buy{width:100%;margin-top:18px}.delivery{font-size:15px;line-height:1.6;margin-top:19px!important;max-width:var(--measure)}.delivery+.small{margin-top:15px}.message{display:none;padding:14px 0;font-size:16px}.message.show{display:block}.error{color:#a52b21}.success{color:#225d31}.loading-spinner{width:16px;height:16px;border:2px solid currentColor;border-bottom-color:transparent;border-radius:50%}.loading .loading-spinner{display:inline-block!important;animation:spin .7s linear infinite}@keyframes 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.small{color:#d8ddce}.example{background:#efe2c7}.sample-inputs{display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:30px;align-items:start;padding:35px 0;border-top:1px solid #bcac8e;border-bottom:1px solid #bcac8e;font-variant-numeric:tabular-nums}.sample-result>span{display:block;font-size:15px;margin-bottom:8px}.sample-result output{display:block;font-size:37px;font-weight:650;letter-spacing:-.03em;line-height:1.3}.sample-result p{font-size:15px;line-height:1.4;margin-top:7px}.example .footnote{margin-top:20px}.questions{max-width:780px;margin-left:auto}.questions h3{margin-bottom:24px}.questions ul{list-style:none;padding:0}.questions li{padding:15px 0;border-bottom:1px solid var(--line);margin:0}.fit{background:var(--material)}.fit .section-heading{margin-bottom:0}.fit h3{margin-bottom:22px}.fit ul+h3{margin-top:35px}.delivery-section{display:grid;grid-template-columns:1fr 1fr;gap:70px}.delivery-section .button{margin-top:30px}.faq .wrap{max-width:1020px}.faq h2{margin-bottom:35px}.faq details{border-top:1px solid var(--line);padding:24px 0}.faq details:last-child{border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;font-size:21px;font-weight:600;line-height:1.5}.faq details p{padding-top:18px;max-width:var(--measure);color:var(--secondary)}.closing{background:var(--ink);color:var(--paper);padding:65px 0}.closing .wrap{display:flex;gap:40px;align-items:center;justify-content:space-between}.closing h2{font-size:clamp(36px,4vw,52px)}.closing em{color:var(--accent)}.closing .button{background:var(--accent);color:var(--ink);flex-shrink:0}.closing .button:hover{background:#dbb965}.sources{padding-top:35px;padding-bottom:35px;font-size:14px;color:var(--secondary)}.sources h3{font-size:17px;margin-bottom:15px}.sources p{max-width:var(--measure)}footer{border-top:1px solid var(--line);padding:35px 0;font-size:13px;color:var(--secondary)}footer>.wrap{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}footer p{margin:0}footer nav{display:flex;gap:20px;flex-wrap:wrap;width:100%}.sticky{display:none}.sticky[hidden]{display:none!important}
@media(max-width:1050px){.wrap{padding-left:32px;padding-right:32px}.opening-spread{gap:55px}.nav nav{gap:15px;font-size:14px}.section-heading,.delivery-section{gap:45px}.sample-inputs{gap:20px}.sample-result output{font-size:31px}.opening h1{font-size:70px}.opening{padding-top:40px}}
@media(max-width:760px){.wrap{padding-left:22px;padding-right:22px}.nav-inner{min-height:72px;gap:15px}.nav nav{display:none}.brand{font-size:20px}.nav-buy{font-size:14px;padding:10px 12px;min-height:43px}.opening{padding-top:35px;padding-bottom:55px}.opening h1{font-size:clamp(41px,8.6vw,61px);margin-bottom:30px}.opening-spread{grid-template-columns:1fr;gap:28px}.cover{width:min(330px,100%);justify-self:center}.opening-offer>.lead{font-size:23px}.purchase{margin-top:27px}.chapter{padding:55px 0}.section-heading,.delivery-section{grid-template-columns:1fr;gap:25px;margin-bottom:30px}h2{font-size:40px}.lead{font-size:22px}.cost-list>div{grid-template-columns:1fr;gap:10px;padding:22px 0}.cost-list dt{font-size:22px}.workbook-table article{grid-template-columns:1fr;gap:16px}.sample-inputs{grid-template-columns:1fr;gap:22px;padding:26px 0}.sample-result output{font-size:36px}.questions{margin:0}.closing .wrap{display:block}.closing .button{margin-top:30px;width:100%}.closing{padding:50px 0}.faq summary{font-size:20px}footer{padding-bottom:110px}.sticky{position:fixed;z-index:20;bottom:0;left:0;right:0;background:var(--paper);border-top:1px solid var(--line);padding:12px 18px calc(12px + env(safe-area-inset-bottom));display:flex;justify-content:space-between;align-items:center;gap:20px}.sticky strong{font-size:23px;white-space:nowrap}.sticky .button{font-size:15px;padding:13px 17px}.sources h3{font-size:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}.loading .loading-spinner{animation:none}}

.offer-price strong{white-space:nowrap;flex-shrink:0}.example .footnote{color:#635135}@media(min-width:761px){.opening{padding-top:40px}.opening h1{margin-bottom:30px}.opening-offer>.lead{font-size:22px;line-height:1.45}}