:root{
  --crimson:#B02648;
  --wine:#7E1A36;
  --blush:#FBF4F5;
  --petal:#F3DFE3;
  --rose-line:#EBCFD5;
  --ink:#1B1215;
  --ash:#6F5A60;
  --white:#FFFFFF;
  --display:"Playfair Display",Georgia,"Times New Roman",serif;
  --body:"DM Sans","Helvetica Neue",Arial,sans-serif;
  --max:1120px;
  --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--white);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--crimson)}
h1,h2,h3{font-family:var(--display);font-weight:700;line-height:1.08;margin:0;text-wrap:balance;letter-spacing:-0.01em}
p{margin:0}
.wrap{width:min(100% - 40px,var(--max));margin-inline:auto}
.narrow{width:min(100% - 40px,760px);margin-inline:auto}
.eyebrow{font-family:var(--body);font-weight:600;font-size:12.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--crimson)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:var(--crimson);color:var(--white);text-decoration:none;font-weight:600;font-size:17px;padding:18px 34px;border-radius:999px;border:0;cursor:pointer;box-shadow:0 12px 30px rgba(176,38,72,.28);transition:transform .18s ease,box-shadow .18s ease,background .18s ease;text-align:center}
.btn:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(176,38,72,.34);background:var(--wine)}
.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--crimson);outline-offset:3px}
.btn.ghost{background:var(--white);color:var(--crimson);box-shadow:inset 0 0 0 2px var(--rose-line)}
.btn.ghost:hover{background:var(--blush);box-shadow:inset 0 0 0 2px var(--crimson)}
.btn.sm{padding:12px 22px;font-size:15px;white-space:nowrap}
.btn.block{width:100%}
.note{font-size:14px;color:var(--ash)}

/* header */
.top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(235,207,213,.6)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.brand{font-family:var(--display);font-weight:700;font-size:19px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink);text-decoration:none;white-space:nowrap}
.brand span{color:var(--crimson)}
.top nav{display:flex;align-items:center;gap:26px}
.top nav a.link{color:var(--ink);text-decoration:none;font-size:15px;font-weight:500}
.top nav a.link:hover{color:var(--crimson)}
@media (max-width:760px){.top nav a.link{display:none}.brand{font-size:16px}.top .wrap{height:64px}.btn.sm{padding:11px 18px;font-size:14px}}

/* intro line */
.intro{padding:46px 0 10px;text-align:center}
.intro h1{font-size:clamp(30px,4.6vw,50px);font-weight:900;margin-top:12px}
.intro h1 em{color:var(--crimson);font-style:italic}
.intro p{color:var(--ash);margin:14px auto 0;max-width:34em;font-size:18px}

/* book cards */
.shelf{padding:34px 0 80px}
.shelf .wrap{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
@media (max-width:860px){.shelf .wrap{grid-template-columns:1fr;gap:56px}}
.book{position:relative;text-align:center;background:var(--white);border:1px solid var(--rose-line);border-radius:28px;padding:40px 28px 34px;box-shadow:0 30px 70px rgba(70,15,30,.08)}
.book.featured{border-color:var(--crimson);box-shadow:0 30px 70px rgba(176,38,72,.16)}
.badge{position:absolute;top:18px;left:50%;transform:translateX(-50%);background:var(--crimson);color:var(--white);font-size:12px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;padding:7px 14px;border-radius:999px;white-space:nowrap}
.cover-link{display:block;width:min(270px,72%);margin:22px auto 0;border-radius:10px;transition:transform .25s ease}
.cover-link img{border-radius:8px;box-shadow:0 26px 50px rgba(70,15,30,.28),0 6px 14px rgba(70,15,30,.14)}
.cover-link:hover{transform:translateY(-6px) rotate(-1deg)}
.book h2{font-size:clamp(24px,2.6vw,30px);margin-top:28px}
.book .sub{color:var(--ash);margin-top:8px;font-size:16px}
.price{font-family:var(--display);font-weight:900;font-size:56px;line-height:1;color:var(--crimson);margin-top:20px;letter-spacing:-.02em}
.price small{display:block;font-family:var(--body);font-weight:600;font-size:12.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--ash);margin-top:10px}
.book .actions{display:grid;gap:12px;margin:24px auto 0;max-width:330px}

/* bundle */
.bundle{position:relative;background:var(--blush);border-top:1px solid var(--rose-line);border-bottom:1px solid var(--rose-line);padding:90px 0;overflow:hidden;text-align:center}
.bubble{position:absolute;border-radius:50%;background:var(--petal);z-index:0}
.bubble.b1{width:320px;height:320px;top:-90px;left:-80px}
.bubble.b2{width:210px;height:210px;top:60px;right:8%;background:var(--rose-line)}
.bubble.b3{width:380px;height:380px;bottom:-160px;right:-100px}
.bubble.b4{width:140px;height:140px;bottom:70px;left:9%;background:var(--rose-line)}
.bundle .wrap{position:relative;z-index:1}
.bundle h2{font-size:clamp(32px,4.4vw,52px);margin-top:14px}
.bundle .lede{color:var(--ash);font-size:18px;max-width:32em;margin:16px auto 0}
.pair{position:relative;display:flex;justify-content:center;align-items:center;margin:46px auto 0;max-width:560px;height:clamp(300px,52vw,420px)}
.pair a{position:absolute;width:min(46%,240px);border-radius:10px;transition:transform .25s ease}
.pair a img{border-radius:8px;box-shadow:0 26px 50px rgba(70,15,30,.28)}
.pair a.left{left:8%;transform:rotate(-7deg);z-index:1}
.pair a.right{right:8%;transform:rotate(7deg);z-index:2}
.pair a.left:hover{transform:rotate(-4deg) translateY(-8px)}
.pair a.right:hover{transform:rotate(4deg) translateY(-8px)}
.price-bubble{position:absolute;z-index:3;left:50%;bottom:-18px;transform:translateX(-50%);width:150px;height:150px;border-radius:50%;background:var(--crimson);color:var(--white);display:grid;place-items:center;box-shadow:0 20px 40px rgba(176,38,72,.35);border:6px solid var(--white)}
.price-bubble div{line-height:1}
.price-bubble b{display:block;font-family:var(--display);font-weight:900;font-size:38px;letter-spacing:-.02em}
.price-bubble s{display:block;font-size:14px;opacity:.85;margin-top:6px}
.bundle .math{display:flex;justify-content:center;gap:0;max-width:520px;margin:56px auto 0;border:1px solid var(--rose-line);border-radius:var(--radius);background:var(--white);overflow:hidden}
.bundle .math div{flex:1;padding:18px 12px}
.bundle .math div+div{border-left:1px solid var(--rose-line)}
.bundle .math b{display:block;font-family:var(--display);font-size:26px;font-weight:700;color:var(--ink)}
.bundle .math span{font-size:12.5px;color:var(--ash);text-transform:uppercase;letter-spacing:.12em;font-weight:600}
.bundle .btn{margin-top:34px}
.bundle .note{margin-top:14px}

/* ask */
.ask{padding:90px 0}
.ask .card{max-width:760px;margin:0 auto;text-align:center;border:1px solid var(--rose-line);border-radius:28px;padding:clamp(34px,6vw,56px) clamp(24px,6vw,64px);background:linear-gradient(180deg,var(--white),var(--blush))}
.ask h2{font-size:clamp(30px,4vw,44px);margin-top:14px}
.ask p.lede{color:var(--ash);font-size:18px;margin:16px auto 0;max-width:32em}
.ask ul{list-style:none;padding:0;margin:26px auto 0;max-width:420px;text-align:left;display:grid;gap:10px}
.ask li{display:flex;gap:12px;align-items:flex-start}
.ask li i{flex:none;width:8px;height:8px;border-radius:50%;background:var(--crimson);margin-top:10px}
.ask .price{font-size:48px}
.ask .btn{margin-top:22px}

/* about */
.about{background:var(--blush);border-top:1px solid var(--rose-line);border-bottom:1px solid var(--rose-line);padding:90px 0}
.about .head{text-align:center;max-width:40em;margin:0 auto 44px}
.about .head h2{font-size:clamp(30px,4vw,46px);margin-top:14px}
.about .two{display:grid;grid-template-columns:1fr 1fr;gap:26px}
@media (max-width:860px){.about .two{grid-template-columns:1fr}}
.about .col{background:var(--white);border:1px solid var(--rose-line);border-radius:var(--radius);padding:30px}
.about .col h3{font-size:26px;margin-top:8px}
.about .col p{color:var(--ash);margin-top:12px}
.about .col a{display:inline-block;margin-top:16px;font-weight:600;text-decoration:none}
.author{max-width:760px;margin:44px auto 0;background:var(--white);border:1px solid var(--rose-line);border-radius:var(--radius);padding:clamp(28px,5vw,46px)}
.author p{margin-top:14px;color:#2A1D21}
.author .sig{font-family:var(--display);font-style:italic;color:var(--crimson);margin-top:18px}

/* faq */
.faq{padding:90px 0}
.faq h2{font-size:clamp(30px,4vw,44px);text-align:center;margin:14px 0 36px}
.faq .eyebrow{text-align:center;display:block}
.faq details{border-bottom:1px solid var(--rose-line);padding:20px 4px}
.faq summary{cursor:pointer;font-weight:600;font-size:18px;list-style:none;display:flex;justify-content:space-between;gap:20px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--crimson);font-size:24px;line-height:1}
.faq details[open] summary::after{content:"\2212"}
.faq details p{color:var(--ash);margin-top:12px}

/* footer */
footer{border-top:1px solid var(--rose-line);padding:40px 0 50px;text-align:center}
footer nav{display:flex;justify-content:center;flex-wrap:wrap;gap:22px}
footer nav a{color:var(--ink);text-decoration:none;font-weight:500}
footer nav a:hover{color:var(--crimson)}
footer .fine{font-size:12.5px;color:var(--ash);margin-top:18px}

/* product page */
.product{padding:46px 0 60px;text-align:center}
.product .cover-link{width:min(300px,74%);margin-top:6px}
.product h1{font-size:clamp(30px,4.4vw,48px);font-weight:900;margin-top:34px}
.product .sub{color:var(--ash);font-size:18px;margin-top:10px}
.product .actions{display:grid;gap:12px;max-width:360px;margin:26px auto 0}
.facts{display:flex;justify-content:center;max-width:560px;margin:34px auto 0;border:1px solid var(--rose-line);border-radius:var(--radius);overflow:hidden;background:var(--white)}
.facts div{flex:1;padding:16px 10px}
.facts div+div{border-left:1px solid var(--rose-line)}
.facts b{display:block;font-family:var(--display);font-size:26px;font-weight:700}
.facts span{font-size:12px;color:var(--ash);text-transform:uppercase;letter-spacing:.12em;font-weight:600}
.desc{padding:20px 0 70px}
.desc h2{font-size:clamp(28px,3.6vw,40px);margin-top:12px}
.desc p{margin-top:16px;color:#2A1D21;font-size:18px}
.desc ul{margin:18px 0 0;padding-left:1.2em;color:#2A1D21;font-size:18px}
.desc li{margin-top:8px}
.laws-list{list-style:none;padding:0!important;display:grid;grid-template-columns:1fr 1fr;gap:10px 26px}
@media (max-width:680px){.laws-list{grid-template-columns:1fr}}
.laws-list li{display:flex;gap:12px;border-bottom:1px solid var(--rose-line);padding:10px 0;margin:0!important}
.laws-list li b{font-family:var(--display);color:var(--crimson);min-width:28px}
.laws-list li.free{font-weight:600}
.laws-list li.free em{font-style:normal;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--white);background:var(--crimson);border-radius:999px;padding:3px 9px;margin-left:auto;align-self:center}

/* preview page */
.preview{background:var(--blush);border-top:1px solid var(--rose-line);padding:90px 0;overflow-x:clip}
.preview .head{text-align:center;max-width:44em;margin:0 auto 44px}
.preview .head h2{font-size:clamp(30px,4vw,46px);margin-top:14px}
.preview .head p{color:var(--ash);margin-top:14px;font-size:18px}
.page{position:relative;max-width:760px;margin:0 auto;background:var(--white);border:1px solid var(--rose-line);border-radius:var(--radius);padding:clamp(34px,6vw,64px) clamp(22px,7vw,80px);box-shadow:0 30px 70px rgba(70,15,30,.10)}
.page .ch-no{font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--ash);font-size:13px}
.page h3.ch-title{font-size:clamp(28px,4vw,40px);color:var(--crimson);margin-top:6px;text-transform:uppercase}
.page .body{margin-top:24px;font-family:var(--display);font-weight:400;font-size:clamp(17px,1.35vw,19px);line-height:1.75;color:#2A1D21}
.page .body p{margin-top:16px}
.page .body .setup{color:var(--ash);font-style:italic;border-left:3px solid var(--crimson);padding-left:16px}
.page .body h3{font-family:var(--body);font-size:20px;font-weight:700;margin-top:34px;color:var(--ink)}
.page .body ol,.page .body ul{padding-left:1.3em}
.page .body li{margin-top:10px}
.page .body a{color:var(--ink);text-decoration-color:var(--crimson);text-underline-offset:3px}
.page .fade{margin-top:34px;padding-top:30px;border-top:1px solid var(--rose-line);text-align:center}
.page .fade p{color:var(--ash);font-size:16px;margin-bottom:18px}

/* download pages */
.thanks{padding:70px 0 90px;text-align:center}
.thanks h1{font-size:clamp(34px,5vw,54px);font-weight:900;margin-top:14px}
.thanks .lede{color:var(--ash);font-size:18px;max-width:32em;margin:16px auto 0}
.dl{display:grid;gap:18px;max-width:440px;margin:38px auto 0}
.dl-item{display:flex;gap:16px;align-items:center;text-align:left;border:1px solid var(--rose-line);border-radius:var(--radius);padding:16px;background:var(--white)}
.dl-item img{width:74px;border-radius:5px;box-shadow:0 10px 20px rgba(70,15,30,.2)}
.dl-item div{flex:1}
.dl-item b{display:block;font-family:var(--display);font-size:18px;line-height:1.2}
.dl-item .btn{margin-top:10px}
.thanks .help{margin-top:30px;font-size:15px;color:var(--ash)}