:root{--ink:#0F1A2E;--slate:#1E2C45;--paper:#F6F3EC;--mist:#E7E9F0;--citrus:#E8FF5A;--aqua:#7FE3E0;--apricot:#FFB46B;--lilac:#C9B8FF;--muted:#5B6478;--tint:#DCE5F5;--tsub:#4E5A75;--line:rgba(15,26,46,.14);--r:18px;--max:1160px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Geist,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.serif{font-family:Newsreader,Georgia,serif;font-style:italic;font-weight:300;letter-spacing:-.01em}
.mono{font-family:"Geist Mono",ui-monospace,SFMono-Regular,Menlo,monospace}
h1,h2,h3{margin:0;font-weight:400;letter-spacing:-.035em;line-height:1}
h2{font-size:clamp(34px,5vw,58px);line-height:1.02}
h2 .serif,h1 .serif{font-size:1.08em}
p{margin:0 0 .8em}
.eyebrow{font-size:12px;letter-spacing:.16em;text-transform:uppercase;font-weight:500;color:var(--tsub);padding-bottom:10px;border-bottom:1px solid var(--line);margin-bottom:22px;display:flex;justify-content:space-between;gap:12px}
.dark .eyebrow{color:rgba(255,255,255,.6);border-color:rgba(255,255,255,.2)}
.lede{font-size:clamp(18px,2vw,21px);line-height:1.45;color:var(--slate);max-width:640px}
section{padding:clamp(64px,9vw,112px) 0}
.dark{background:var(--ink);color:#fff}
.tintbg{background:var(--tint)}
.mistbg{background:var(--mist)}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:15px 26px;font-weight:600;font-size:15px;text-decoration:none;letter-spacing:.01em;border:1.5px solid transparent;transition:transform .15s,background .15s;white-space:nowrap;cursor:pointer}
.btn:hover{transform:translateY(-1px)}
.btn-buy{background:var(--citrus);color:var(--ink);box-shadow:0 6px 20px rgba(15,26,46,.12)}
.btn-buy:hover{background:#f0ff8a}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.dark .btn-ghost{border-color:rgba(255,255,255,.5);color:#fff}
.btn-sm{padding:9px 16px;font-size:14px}
/* nav */
.nav{position:sticky;top:0;z-index:20;background:rgba(220,229,245,.88);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:62px;gap:16px}
.brand{font-weight:600;text-decoration:none;font-size:16px;letter-spacing:-.01em}
.brand span{font-weight:400;color:var(--tsub)}
.nav nav{display:flex;align-items:center;gap:22px;font-size:14px}
.nav nav a:not(.btn){text-decoration:none;color:var(--slate)}
.nav nav a:not(.btn):hover{text-decoration:underline}
@media(max-width:720px){.nav nav a:not(.btn){display:none}}
/* hero */
.hero{background:var(--tint);padding:clamp(40px,6vw,80px) 0 clamp(56px,7vw,96px);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(32px,5vw,72px);align-items:center}
.hero h1{font-size:clamp(54px,8.6vw,112px);line-height:.92;letter-spacing:-.045em}
.hero h1 .serif{display:inline-block;font-size:1.1em}
.hero .sub{font-size:clamp(21px,2.4vw,28px);line-height:1.2;letter-spacing:-.02em;margin:22px 0 14px;font-weight:500}
.price-row{display:flex;align-items:center;flex-wrap:wrap;gap:14px 18px;margin-top:28px}
.price{font-family:Newsreader,Georgia,serif;font-style:italic;font-weight:300;font-size:56px;line-height:1;letter-spacing:-.02em}
.facts{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;padding:0;list-style:none}
.facts li{background:#fff;border-radius:999px;padding:6px 12px;font-size:13px;font-weight:500}
.small{font-size:13.5px;color:var(--tsub);line-height:1.5}
.cover{position:relative}
.cover img{border-radius:14px;box-shadow:0 30px 60px -20px rgba(15,26,46,.45),0 4px 12px rgba(15,26,46,.12);transform:rotate(1.5deg);width:100%;max-width:440px;margin-left:auto}
.cover .tag{position:absolute;left:-6px;bottom:28px;background:var(--ink);color:#fff;border-radius:999px;padding:8px 14px;font-size:13px;font-weight:500;box-shadow:0 8px 20px rgba(15,26,46,.25)}
.cover .tag b{color:var(--citrus)}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr}.cover{order:-1;max-width:330px;margin:0 auto}.cover img{margin:0 auto}}
/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.stat{border-bottom:1px solid rgba(255,255,255,.2);padding-bottom:16px}
.stat b{display:block;font-family:Newsreader,Georgia,serif;font-style:italic;font-weight:300;font-size:clamp(64px,8vw,104px);line-height:.9;letter-spacing:-.03em}
.stat span{display:block;margin-top:10px;font-size:15px;color:rgba(255,255,255,.72)}
.stat:nth-child(1) b{color:var(--citrus)}.stat:nth-child(2) b{color:var(--aqua)}.stat:nth-child(3) b{color:var(--apricot)}.stat:nth-child(4) b{color:var(--lilac)}
@media(max-width:760px){.stats{grid-template-columns:1fr 1fr}}
/* inside */
.two{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,56px)}
@media(max-width:860px){.two{grid-template-columns:1fr}}
.toc{list-style:none;margin:0;padding:0;border-bottom:1px solid var(--line)}
.toc li{display:grid;grid-template-columns:52px 1fr auto;align-items:baseline;gap:12px;padding:13px 0;border-top:1px solid var(--line)}
.toc .n{font-family:Newsreader,Georgia,serif;font-style:italic;font-size:26px;line-height:1;color:#d98a3c}
.toc .t{font-weight:500;font-size:17px;line-height:1.3}
.toc .pg{font-size:12px;color:var(--tsub)}
.toc li.extra .t{font-weight:400}
.card{background:#fff;border-radius:var(--r);padding:24px 26px}
.card.mist{background:var(--mist)}
.card.ink{background:var(--ink);color:#fff}
.card.apr{background:#FFE6CC}
.card h3,.h3{font-size:12px;letter-spacing:.15em;text-transform:uppercase;font-weight:600;color:var(--tsub);margin-bottom:12px;line-height:1.3}
.card.ink h3{color:rgba(255,255,255,.65)}
.tools{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.tool{background:#fff;border-radius:14px;padding:14px 16px}
.tool div{display:flex;justify-content:space-between;gap:8px;align-items:baseline}
.tool b{font-size:15.5px}
.tool .mono{font-size:12px;white-space:nowrap;color:var(--slate)}
.tool p{font-size:14px;color:var(--slate);margin:4px 0 0;line-height:1.4}
@media(max-width:520px){.tools{grid-template-columns:1fr}}
.stack{display:flex;flex-direction:column;gap:16px}
.labels p{font-size:15px;margin:0 0 8px}
/* tags (from the book) */
.tg{display:inline-block;border-radius:999px;font-family:"Geist Mono",ui-monospace,monospace;font-size:10.5px;font-weight:500;letter-spacing:.05em;padding:2px 8px;vertical-align:2px;white-space:nowrap;text-transform:uppercase;line-height:1.5}
.tg.c{background:var(--ink);color:#fff}.tg.e{border:1px solid #d98a3c;color:#a55a12}.tg.g{background:var(--lilac);color:var(--ink)}.tg.o{background:var(--mist);color:var(--tsub)}.tg.h{background:var(--aqua);color:var(--ink)}
.dark .tg.c{background:#fff;color:var(--ink)}
/* who */
.who{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:36px}
.who .card p{margin:0;font-size:15.5px}
.who .card b{display:block;font-size:19px;margin-bottom:6px;letter-spacing:-.01em}
@media(max-width:860px){.who{grid-template-columns:1fr 1fr}}@media(max-width:520px){.who{grid-template-columns:1fr}}
.dot{list-style:none;padding:0;margin:0}
.dot li{position:relative;padding-left:18px;margin-bottom:8px}
.dot li:before{content:"";position:absolute;left:0;top:.6em;width:7px;height:7px;border-radius:50%;background:var(--apricot)}
/* sample / chapter */
.sample-head{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:20px;margin-bottom:40px}
.chapter{background:#fff;border-radius:28px;padding:clamp(24px,5vw,64px);max-width:900px;margin:0 auto;box-shadow:0 20px 50px -30px rgba(15,26,46,.35)}
.chapter .ch-top{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap}
.chapter .num{font-family:Newsreader,Georgia,serif;font-style:italic;font-weight:300;font-size:clamp(110px,18vw,180px);line-height:.8;letter-spacing:-.04em}
.pills{display:flex;flex-wrap:wrap;gap:6px}
.pill{display:inline-flex;border-radius:999px;font-size:13px;font-weight:600;padding:6px 12px;background:var(--tint);white-space:nowrap}
.pill.dk{background:var(--ink);color:#fff}
.chapter h3.ch-title{font-size:clamp(36px,5.4vw,56px);letter-spacing:-.035em;line-height:1;margin:18px 0 16px}
.chapter h4{font-size:12px;letter-spacing:.15em;text-transform:uppercase;font-weight:600;color:var(--tsub);margin:30px 0 10px}
.chapter h5{font-size:clamp(26px,3.4vw,34px);font-weight:500;letter-spacing:-.025em;line-height:1.08;margin:0 0 14px}
.chapter h5 .serif{font-weight:300;font-size:1.1em}
.chapter hr{border:0;border-top:1px solid var(--line);margin:44px 0}
.chapter .card{padding:20px 22px}
.chapter .card.tint{background:var(--tint)}
.chapter .two{gap:20px;align-items:start}
.big{font-family:Newsreader,Georgia,serif;font-style:italic;font-weight:300;font-size:52px;line-height:.95;letter-spacing:-.02em}
table.costs{width:100%;border-collapse:collapse;font-size:15px}
table.costs td{padding:10px 6px;border-top:1px solid var(--line);vertical-align:top;line-height:1.4}
table.costs tr:first-child td{border-top:0}
table.costs td.t{font-weight:600;width:24%}
table.costs td.u{color:var(--slate);width:34%}
table.costs td.pr{font-family:"Geist Mono",ui-monospace,monospace;font-size:13px}
table.costs tr.tot td{font-weight:600;background:var(--tint)}
@media(max-width:600px){table.costs,table.costs tbody,table.costs tr,table.costs td{display:block;width:auto!important}table.costs tr{border-top:1px solid var(--line);padding:10px 0}table.costs tr:first-child{border-top:0}table.costs td{border:0;padding:2px 0}table.costs tr.tot{padding:10px 8px;border-radius:10px}}
ol.steps{list-style:none;counter-reset:s;padding:0;margin:0}
ol.steps li{counter-increment:s;position:relative;padding-left:40px;margin-bottom:14px}
ol.steps li:before{content:counter(s);position:absolute;left:0;top:-4px;font-family:Newsreader,Georgia,serif;font-style:italic;font-size:28px;color:#d98a3c;line-height:1}
.warn{border-left:3px solid var(--apricot);background:var(--paper);border-radius:0 14px 14px 0;padding:18px 22px}
.warn .dot li,.card .dot li{font-size:15.5px}
.credit{font-size:13.5px;color:var(--tsub);border-top:1px solid var(--line);padding-top:10px;margin-top:22px}
.score{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.score div{background:var(--paper);border-radius:14px;padding:14px;border-top:3px solid var(--apricot)}
.score b{display:block;font-family:Newsreader,Georgia,serif;font-style:italic;font-weight:300;font-size:26px;line-height:1}
.score span{display:block;font-size:14px;line-height:1.35;margin-top:6px}
@media(max-width:640px){.score{grid-template-columns:1fr 1fr}}
.sources{font-size:13px;color:var(--tsub);list-style:none;padding:0;margin:0}
.sources li{margin-bottom:6px;line-height:1.4;word-break:break-word}
.sources b{font-family:"Geist Mono",ui-monospace,monospace;color:var(--ink);font-weight:500;margin-right:6px}
.endcap{text-align:center;margin-top:44px}
.endcap .btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:18px}
/* previews */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:36px}
.gallery figure{margin:0}
.gallery a{display:block;border-radius:12px;overflow:hidden;box-shadow:0 14px 30px -18px rgba(0,0,0,.6);transition:transform .2s}
.gallery a:hover{transform:translateY(-3px)}
.gallery figcaption{font-size:13.5px;color:rgba(255,255,255,.7);margin-top:10px}
@media(max-width:860px){.gallery{grid-template-columns:repeat(2,1fr)}}
/* buy */
.buybox{background:var(--citrus);color:var(--ink);border-radius:32px;padding:clamp(28px,5vw,64px);display:grid;grid-template-columns:auto 1fr;gap:clamp(24px,5vw,64px);align-items:center}
.buybox img{width:clamp(150px,20vw,230px);border-radius:10px;box-shadow:0 20px 40px -18px rgba(15,26,46,.55)}
.buybox .btn-buy{background:var(--ink);color:#fff}
.buybox .btn-buy:hover{background:var(--slate)}
.buybox ul{columns:2;column-gap:28px;margin:18px 0 24px}
@media(max-width:760px){.buybox{grid-template-columns:1fr}.buybox img{margin:0 auto}.buybox ul{columns:1}}
.buybox .dot li:before{background:var(--ink)}
/* faq */
.faq{max-width:820px}
.faq details{border-top:1px solid var(--line);padding:18px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-size:19px;font-weight:500;letter-spacing:-.01em;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";font-family:"Geist Mono",monospace;font-weight:400;color:var(--tsub)}
.faq details[open] summary:after{content:"–"}
.faq details p{margin:12px 0 0;color:var(--slate);max-width:700px}
/* footer */
footer{background:var(--ink);color:rgba(255,255,255,.75);padding:56px 0 40px;font-size:14px}
footer .big-brand{font-size:clamp(40px,7vw,80px);color:#fff;letter-spacing:-.045em;line-height:1;margin-bottom:28px}
footer .row{display:flex;justify-content:space-between;flex-wrap:wrap;gap:20px;border-top:1px solid rgba(255,255,255,.18);padding-top:20px}
footer p{max-width:640px}
:focus-visible{outline:3px solid var(--aqua);outline-offset:3px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn,.gallery a{transition:none}}
@media(max-width:600px){.btn{white-space:normal;text-align:center}.sample-head .btn,.endcap .btn{width:100%}.chapter .ch-top .pills{flex-direction:row!important;align-items:flex-start!important}}
@media(max-width:860px){.cover{max-width:250px}.cover .tag{left:-10px;bottom:16px;font-size:12px}}
@media(max-width:520px){.cover{max-width:200px}.hero{padding-top:28px}}