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@media(max-width:900px){:root{--shell:min(calc(100vw - 36px),700px)}.site-header nav{display:none}.hero{grid-template-columns:1fr;padding-top:70px;gap:70px}.hero h1{font-size:58px}.profile-card{max-width:480px}.section-heading{display:block}.section-heading>p{width:auto}.book-grid{grid-template-columns:repeat(2,1fr)}.about{grid-template-columns:80px 1fr}.about-stats{grid-column:2}.proof{grid-template-columns:1fr}.cta,.detail-cta{padding:50px;gap:40px}.book-hero{grid-template-columns:300px 1fr;gap:50px}.detail-copy h1{font-size:50px}.book-story{grid-template-columns:1fr 1.2fr}.book-story aside{grid-column:2}.related-grid{grid-template-columns:1fr 1fr}}
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.text-link span{color:var(--ember);margin-left:5px}
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/* Version 2: navigation, discovery, conversion, and accessibility */
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.featured{padding:105px 0;display:grid;grid-template-columns:.75fr 1.25fr;gap:90px;align-items:center;border-bottom:1px solid var(--line)}.featured-copy h2{font:700 clamp(42px,5vw,62px)/1.06 "Manrope",sans-serif;letter-spacing:-.055em;margin:25px 0}.featured-copy p{color:#aaa6a0;line-height:1.75;max-width:500px}.featured-book{display:grid;grid-template-columns:230px 1fr;gap:42px;align-items:center;background:linear-gradient(145deg,#292725,#1c1b1a);border:1px solid var(--line);padding:32px}.featured-cover{display:block;position:relative;box-shadow:0 28px 55px rgba(0,0,0,.42)}.featured-cover img,.featured-cover .generated-cover{display:block;width:100%;aspect-ratio:3/4;object-fit:cover}.featured-cover>span{position:absolute;inset:auto 10px 10px;background:rgba(16,16,16,.9);color:#fff;padding:12px;font-size:11px;display:flex;justify-content:space-between}.featured-cover>span b{color:var(--ember)}.featured-book>div>small{color:var(--ember);text-transform:uppercase;letter-spacing:.18em;font-size:9px}.featured-book h3{font:700 29px/1.15 "Manrope",sans-serif;letter-spacing:-.04em;margin:13px 0}.featured-book p{color:#928e88;font-size:13px}.featured-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}.featured-actions a{color:#fff;border:1px solid var(--line);text-decoration:none;padding:9px 11px;font-size:11px}.featured-actions a:first-child{background:var(--ember);border-color:var(--ember);color:#111;font-weight:700}

.discovery-bar{display:flex;justify-content:space-between;gap:30px;align-items:center;padding:24px 26px;margin-bottom:24px;border:1px solid rgba(239,91,53,.28);background:linear-gradient(100deg,rgba(239,91,53,.09),rgba(255,255,255,.02))}.discovery-bar small{display:block;color:var(--ember);font:700 9px "Manrope",sans-serif;text-transform:uppercase;letter-spacing:.16em;margin-bottom:5px}.discovery-bar strong{font:700 15px "Manrope",sans-serif}.quick-paths{display:flex;gap:7px;flex-wrap:wrap;justify-content:flex-end}.quick-paths button{border:1px solid var(--line);background:#211f1d;color:#c9c5bf;padding:9px 12px;font:600 11px "DM Sans",sans-serif;cursor:pointer}.quick-paths button:hover,.quick-paths button:focus-visible{border-color:var(--ember);color:#fff}.catalog-actions{display:flex;align-items:center}.sort-control{display:flex;align-items:center;gap:8px;border-left:1px solid var(--line);padding-left:16px;color:#777;font-size:10px}.sort-control select{background:#1b1a19;border:0;color:#ccc;padding:14px 28px 14px 6px;outline:0}.catalog-summary{display:flex;justify-content:space-between;align-items:center;margin:-35px 0 45px;color:#7f7b76;font-size:11px}.catalog-summary button{background:none;border:0;color:#d7d3cd;font:600 11px "DM Sans",sans-serif;cursor:pointer}.catalog-summary button span{display:inline-grid;place-items:center;background:var(--ember);color:#111;width:20px;height:20px;border-radius:50%;margin-left:5px}.book-meta-top{display:flex;justify-content:space-between;align-items:center;gap:12px}.book-meta-top>span{color:var(--ember);font:700 9px "Manrope";text-transform:uppercase;letter-spacing:.18em}.save-book{border:0;background:none;color:#888;font:600 10px "DM Sans",sans-serif;cursor:pointer;padding:5px}.save-book[aria-pressed="true"]{color:var(--ember)}.card-actions{display:flex!important;gap:6px!important;flex-wrap:wrap}.card-actions a{border:1px solid var(--line);color:#aaa;text-decoration:none;padding:6px 8px;font-size:9px}.card-actions a:first-child{color:#fff;border-color:#494541}.cover-wrap:focus-visible,.button:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--ember);outline-offset:3px}

.shortlist-panel{position:fixed;right:0;top:0;bottom:0;width:min(430px,92vw);z-index:120;background:#211f1d;border-left:1px solid var(--line);padding:32px;transform:translateX(105%);transition:transform .3s;overflow:auto}.shortlist-panel.open{transform:none}.shortlist-head{display:flex;justify-content:space-between;align-items:start;border-bottom:1px solid var(--line);padding-bottom:20px}.shortlist-head small{color:var(--ember);text-transform:uppercase;letter-spacing:.17em;font-size:9px}.shortlist-head h2{font:700 36px "Manrope",sans-serif;margin:6px 0}.shortlist-head button{background:none;border:0;color:#fff;font-size:30px;cursor:pointer}.shortlist-items article{display:grid;grid-template-columns:62px 1fr;gap:14px;padding:18px 0;border-bottom:1px solid var(--line)}.shortlist-items img{width:62px;height:82px;object-fit:cover}.shortlist-items small{display:block;color:var(--ember);font-size:8px;text-transform:uppercase;letter-spacing:.14em}.shortlist-items a{display:block;color:#fff;text-decoration:none;font:700 14px/1.25 "Manrope",sans-serif;margin:5px 0}.shortlist-items button{border:0;background:none;color:#777;padding:0;font-size:10px;cursor:pointer}.shortlist-panel>p{color:#888;font-size:13px;margin:28px 0}.shortlist-panel>.button{width:100%;margin-top:20px}.shortlist-backdrop{position:fixed;inset:0;z-index:110;border:0;background:rgba(0,0,0,.62);backdrop-filter:blur(3px)}[hidden]{display:none!important}.panel-open{overflow:hidden}

.review-copy-offer .review-link{background:none;border:0;padding:0;color:var(--ember);font:700 13px "DM Sans",sans-serif;cursor:pointer;border-bottom:1px solid currentColor}.share-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:17px}.share-actions>span{color:#777;font-size:10px;text-transform:uppercase;letter-spacing:.13em}.share-actions button,.share-actions a{border:0;background:none;color:#b6b1aa;text-decoration:none;font:600 11px "DM Sans",sans-serif;padding:5px;cursor:pointer}.share-actions button:hover,.share-actions a:hover{color:var(--ember)}.reviewer-fit,.community-coverage{padding:30px 0 120px}.reviewer-fit .section-heading,.community-coverage .section-heading{margin-bottom:42px}.fit-grid,.coverage-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.fit-grid article,.coverage-grid a{min-height:255px;padding:27px;border:1px solid var(--line);background:linear-gradient(145deg,rgba(45,43,40,.7),rgba(27,26,25,.55));display:flex;flex-direction:column}.fit-grid small,.coverage-grid small{color:var(--ember);font-size:9px;text-transform:uppercase;letter-spacing:.16em}.fit-grid h3,.coverage-grid h3{font:700 21px/1.25 "Manrope",sans-serif;letter-spacing:-.025em;margin:25px 0 12px}.fit-grid p,.coverage-grid p{color:#96918b;font-size:13px;line-height:1.65}.coverage-grid a{color:#fff;text-decoration:none}.coverage-grid a span{margin-top:auto;color:var(--ember);font-size:11px}.mobile-action-bar{display:none}

.review-dialog{width:min(620px,calc(100vw - 30px));padding:0;border:1px solid rgba(239,91,53,.35);background:#211f1d;color:#fff;box-shadow:0 45px 100px rgba(0,0,0,.7)}.review-dialog::backdrop{background:rgba(0,0,0,.72);backdrop-filter:blur(6px)}.review-dialog form{padding:30px;display:grid;grid-template-columns:1fr 1fr;gap:16px}.dialog-head{grid-column:1/-1;display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:4px}.dialog-head small{color:var(--ember);text-transform:uppercase;letter-spacing:.16em;font-size:9px}.dialog-head h2{font:700 30px "Manrope",sans-serif;margin:5px 0}.dialog-head button{border:0;background:none;color:#fff;font-size:30px;cursor:pointer}.review-dialog label{display:grid;gap:6px;color:#aaa;font-size:11px}.review-dialog label:nth-of-type(3),.review-dialog label:nth-of-type(4),.review-dialog label:nth-of-type(5){grid-column:1/-1}.review-dialog input,.review-dialog textarea{width:100%;border:1px solid var(--line);background:#171615;color:#fff;padding:12px;font:400 13px "DM Sans",sans-serif;resize:vertical}.review-dialog form>p{grid-column:1/-1;color:#85817b;font-size:10px;line-height:1.5}.review-dialog form>.button{grid-column:1/-1}

@media(max-width:900px){.menu-toggle{display:flex}.site-header nav#primary-nav{display:none;position:absolute;left:18px;right:18px;top:69px;padding:18px;background:#211f1f;border:1px solid var(--line);box-shadow:0 20px 50px rgba(0,0,0,.5);flex-direction:column;align-items:stretch;gap:0}.site-header nav#primary-nav.open{display:flex}.site-header nav#primary-nav a,.site-header nav#primary-nav button{padding:13px;border-bottom:1px solid var(--line);text-align:left}.featured{grid-template-columns:1fr;gap:40px}.featured-book{max-width:700px}.discovery-bar{align-items:flex-start;flex-direction:column}.quick-paths{justify-content:flex-start}.catalog-tools{display:block}.catalog-actions{border-top:1px solid var(--line);justify-content:space-between}.sort-control{border-left:0;padding-left:0}.fit-grid,.coverage-grid{grid-template-columns:1fr}.reviewer-fit,.community-coverage{padding-bottom:90px}}
@media(max-width:620px){.site-header{position:sticky}.featured{padding:75px 0}.featured-book{grid-template-columns:120px 1fr;gap:20px;padding:18px}.featured-book h3{font-size:21px}.featured-actions a{padding:7px 8px}.discovery-bar{padding:20px;margin-inline:-2px}.quick-paths{width:100%}.quick-paths button{flex:1 1 42%}.catalog-actions{display:grid;grid-template-columns:1fr;padding:8px 0}.sort-control{border-bottom:1px solid var(--line);justify-content:space-between}.sort-control select{flex:1}.catalog-summary{margin-top:-30px}.card-actions a{font-size:10px;padding:8px 10px}.book-meta{padding-top:18px}.reviewer-fit .section-heading,.community-coverage .section-heading{display:block}.fit-grid article{min-height:auto}.review-dialog form{grid-template-columns:1fr;padding:22px}.review-dialog label{grid-column:1!important}.mobile-action-bar{display:grid;position:fixed;z-index:90;left:0;right:0;bottom:0;grid-template-columns:1.3fr 1fr 1fr;background:#171615;border-top:1px solid rgba(239,91,53,.35);padding:9px 10px max(9px,env(safe-area-inset-bottom))}.mobile-action-bar a,.mobile-action-bar button{min-height:44px;display:grid;place-items:center;text-decoration:none;border:1px solid var(--line);background:#242220;color:#fff;font:700 10px "DM Sans",sans-serif}.mobile-action-bar button{background:var(--ember);color:#111;border-color:var(--ember)}.detail-page{padding-bottom:62px}.share-actions{align-items:flex-start}.featured-copy h2{font-size:40px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1!important;transform:none!important;transition:none!important}.marquee div{animation:none}.cover-wrap,.shortlist-panel{transition:none!important}}

/* Featured cover keeps its natural book ratio instead of inheriting the HTML height. */
.featured-cover img{height:auto;aspect-ratio:3/4;object-fit:contain}

/* Secure production edition */
.honeypot{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;overflow:hidden!important}.turnstile-container{grid-column:1/-1;min-height:66px}.consent-row{grid-column:1/-1!important;display:flex!important;grid-template-columns:none!important;align-items:flex-start;gap:10px!important;padding:12px;border:1px solid var(--line);background:#191817}.consent-row input{width:16px!important;height:16px;margin:2px 0 0;accent-color:var(--ember)}.consent-row span{line-height:1.55}.consent-row a{color:var(--ember)}.form-status{min-height:18px;margin:0!important;color:#c2beb8!important}.form-status.error{color:#ff8a6c!important}.form-status.success{color:#7ed08b!important}.review-dialog form>.button[disabled]{opacity:.55;cursor:wait}
.legal-shell{width:min(820px,calc(100vw - 40px));margin:auto;padding:85px 0 120px}.legal-shell h1{font:700 clamp(46px,7vw,74px)/1.02 "Manrope",sans-serif;letter-spacing:-.055em;margin:30px 0 15px}.legal-updated{color:#777;font-size:12px;margin-bottom:70px}.legal-shell section{padding:34px 0;border-top:1px solid var(--line)}.legal-shell h2{font:700 25px "Manrope",sans-serif;letter-spacing:-.03em;margin:0 0 14px}.legal-shell section p{color:#aaa6a0;line-height:1.8}.legal-shell a{color:var(--ember)}.legal-page footer{margin-top:0}
@media(max-width:620px){.turnstile-container{overflow:hidden}.consent-row{padding:10px}.legal-shell{padding:55px 0 90px}.legal-shell h1{font-size:43px}.legal-updated{margin-bottom:45px}.legal-page .site-header nav{display:none}.legal-page footer{padding-bottom:35px}}
.packt-logo{position:relative;width:74px;height:38px;overflow:hidden;flex:0 0 74px}.packt-logo img{position:absolute;width:124px;height:124px;max-width:none;left:50%;top:50%;transform:translate(-50%,-50%);object-fit:cover}.collaborate{padding:115px 0 125px;border-top:1px solid var(--line)}.collaborate-heading{display:grid;grid-template-columns:1.1fr .8fr;column-gap:80px;align-items:end;margin-bottom:55px}.collaborate-heading .kicker{grid-column:1/-1}.collaborate-heading h2{font:700 clamp(44px,5vw,64px)/1.05 "Manrope",sans-serif;letter-spacing:-.055em;margin:25px 0 0}.collaborate-heading h2 em{color:var(--ember);font-style:normal}.collaborate-heading p{color:#a7a39c;line-height:1.7;max-width:430px;margin:0 0 8px}.collab-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.collab-card{min-height:335px;padding:30px;border:1px solid var(--line);background:linear-gradient(145deg,rgba(45,43,40,.82),rgba(27,26,25,.72));display:flex;flex-direction:column;transition:border-color .25s,transform .25s,background .25s}.collab-card:hover{transform:translateY(-4px);border-color:rgba(239,91,53,.55);background:linear-gradient(145deg,#302d2a,#1b1a19)}.collab-number{align-self:flex-end;color:#66625d;font:700 11px "Manrope",sans-serif;letter-spacing:.16em}.collab-card small{color:var(--ember);font:700 10px "Manrope",sans-serif;text-transform:uppercase;letter-spacing:.18em}.collab-card h3{font:700 26px/1.18 "Manrope",sans-serif;letter-spacing:-.035em;margin:15px 0 12px;max-width:430px}.collab-card p{color:#9f9b95;line-height:1.65;font-size:14px;max-width:470px}.collab-card a{margin-top:auto;padding-top:24px;border-top:1px solid var(--line);color:#fff;text-decoration:none;font-size:13px;font-weight:700;display:flex;justify-content:space-between}.collab-card a b{color:var(--ember)}
@media(max-width:900px){.collaborate-heading{grid-template-columns:1fr}.collaborate-heading p{margin-top:25px}.collab-card{min-height:320px}}
@media(max-width:620px){.packt-logo{width:64px;flex-basis:64px}.collaborate{padding:80px 0 90px}.collaborate-heading{margin-bottom:38px}.collaborate-heading h2{font-size:42px}.collab-grid{grid-template-columns:1fr}.collab-card{min-height:300px;padding:25px}}
.packt-logo{width:auto;height:auto;overflow:visible;flex:0 0 auto;color:var(--ember);font:800 24px/1 "Manrope",sans-serif;letter-spacing:-.06em;text-transform:none}.packt-logo:hover{color:#ff7955}