:root{--ink:#172a35;--night:#173442;--night-deep:#0c2532;--snow:#edf2f3;--frost:#d9e4e8;--slate:#506773;--orange:#f47a07;--orange-text:#a04b00;--white:#fff;--line:#d8e2e6}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--white);color:var(--ink);font-family:Arial,Helvetica,sans-serif;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
a:focus-visible{outline:3px solid var(--orange);outline-offset:4px}
.shell{width:min(100% - 64px,1180px);margin-inline:auto}
.skip-link{position:absolute;z-index:100;top:-60px;left:24px;padding:12px 16px;background:var(--orange);color:#111;font-weight:700}
.skip-link:focus{top:12px}
.site-header{background:var(--white);position:relative;z-index:10;border-bottom:1px solid #e7ebec}
.header-inner{min-height:86px;display:flex;align-items:center;gap:36px}
.brand{width:232px;flex:none}
.brand img{width:100%}
.primary-nav{display:flex;align-items:center;gap:30px;margin-left:auto;font-size:13px;font-weight:700;letter-spacing:.02em}
.primary-nav a{padding:10px 0;transition:color .2s ease}
.primary-nav a:hover,.footer-links a:hover{color:var(--orange-text)}
.header-cta{background:var(--ink);color:var(--white);padding:13px 17px;border-radius:2px;white-space:nowrap;font-size:12px;font-weight:800;letter-spacing:.02em;transition:background .2s ease,transform .2s ease}
.header-cta:hover{background:#294957;transform:translateY(-2px)}
.header-cta span{margin-left:9px;color:var(--orange)}
.hero{overflow:hidden;background:linear-gradient(120deg,var(--night-deep) 0%,#173847 57%,#315565 100%);color:var(--white)}
.hero-grid{min-height:650px;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:70px}
.hero-copy{position:relative;z-index:1;padding:80px 0 78px}
.eyebrow{display:flex;align-items:center;gap:11px;margin:0 0 30px;color:#5c6e75;font-size:11px;font-weight:800;letter-spacing:.17em;text-transform:uppercase}
.eyebrow-light{color:#c4d5dc}
.eyebrow-line{width:29px;height:2px;background:var(--orange);flex:none}
.hero h1{margin:0;font-size:clamp(3.5rem,5.8vw,6.5rem);line-height:.99;letter-spacing:-.065em;font-weight:800;max-width:680px}
.hero h1 em{font-style:normal;color:var(--orange)}
.hero-description{max-width:550px;margin:30px 0 0;color:#d4e1e6;font-size:17px;line-height:1.72}
.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:25px;margin-top:38px}
.button{min-height:52px;display:inline-flex;align-items:center;justify-content:space-between;gap:32px;padding:15px 21px;border-radius:2px;font-size:13px;font-weight:800;letter-spacing:.015em;transition:transform .2s ease,background .2s ease}
.button:hover{transform:translateY(-3px)}
.button-orange{background:var(--orange);color:#131d22}
.button-orange:hover{background:#ff983e}
.button-dark{background:var(--night);color:var(--white)}
.button-dark:hover{background:#2a5163}
.text-link{display:inline-flex;align-items:center;gap:12px;font-size:13px;font-weight:800;border-bottom:1px solid currentColor;padding-bottom:7px;transition:color .2s ease}
.text-link:hover{color:var(--orange-text)}
.text-link-light{color:#f3f7f8}
.text-link-light:hover{color:var(--orange)}
.hero-footnote{display:flex;align-items:center;gap:10px;margin-top:67px;color:#c4d1d6;font-size:12px;letter-spacing:.01em}
.hero-footnote strong{color:var(--white);font-weight:700}
.accent-dot{width:6px;height:6px;background:var(--orange);border-radius:50%;flex:none}
.hero-art{height:100%;position:relative;display:flex;align-items:center;justify-content:center;padding:70px 0}
.hero-art-glow{position:absolute;width:490px;height:490px;border:1px solid rgba(230,243,249,.17);border-radius:50%;background:radial-gradient(circle,rgba(220,235,242,.13),rgba(220,235,242,0) 65%);transform:translate(32px,18px)}
.hero-art-line{position:absolute;width:1px;height:120%;background:rgba(255,255,255,.1);transform:rotate(30deg)}
.hero-art-line-one{left:20%}.hero-art-line-two{left:42%}
.hero-books{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;gap:26px;width:100%}
.hero-books .book-wrap{width:calc((100% - 26px)/2);max-width:225px;flex:none}
.hero-books .hero-book-original{transform:rotate(-4deg) translateY(-12px)}
.hero-books .hero-book-new{transform:rotate(4deg) translateY(18px)}
.hero-books .book-tag{right:-6px;top:-27px;font-size:9px;letter-spacing:.1em;padding:10px 11px}
.hero-book-original .book-tag{transform:rotate(4deg)}
.hero-book-new .book-tag{transform:rotate(-4deg)}
.book-wrap{position:relative;z-index:1;width:min(310px,75%);transform:rotate(4deg);filter:drop-shadow(15px 25px 26px rgba(3,16,22,.4))}
.book-wrap:before{content:"";position:absolute;inset:8px -8px -8px 8px;background:#f7fafb;z-index:-1;box-shadow:7px 9px 0 rgba(2,13,20,.22)}
.book-promo{position:relative;display:block;width:100%;aspect-ratio:2/3;overflow:hidden;background:#d6e0e5}
.book-promo img{width:100%;height:100%;object-fit:cover}
.book-tag{position:absolute;top:-30px;right:-50px;z-index:2;padding:12px 15px;background:var(--orange);color:#172026;font-size:10px;letter-spacing:.13em;font-weight:800;white-space:nowrap;transform:rotate(-4deg);box-shadow:5px 6px 0 rgba(0,0,0,.15)}
.book-tag span{margin:0 5px;color:#703000}
.principles{background:#f4f7f8;border-bottom:1px solid var(--line)}
.principles-grid{display:grid;grid-template-columns:repeat(3,1fr)}
.principle{display:flex;align-items:flex-start;gap:16px;padding:34px 25px 34px 0}
.principle+.principle{border-left:1px solid var(--line);padding-left:27px}
.principle-number{padding-top:2px;color:var(--orange-text);font-size:11px;font-weight:800;letter-spacing:.08em}
.principle h2{margin:0 0 7px;font-size:16px;letter-spacing:-.02em}
.principle p{margin:0;color:#60737c;font-size:13px;line-height:1.5}
.section-pad{padding-block:112px}
.book-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:110px}
.section-heading h2,.next-section h2,.about-section h2{margin:0;letter-spacing:-.052em;font-weight:800}
.section-heading h2{font-size:clamp(3rem,5vw,5.35rem);line-height:1.01;text-transform:uppercase;color:var(--night)}
.section-heading h2 span{color:var(--orange-text)}
.book-subtitle{max-width:430px;margin:24px 0 0;color:var(--slate);font-size:22px;line-height:1.3}
.byline{margin:34px 0 0;font-size:11px;font-weight:800;letter-spacing:.17em;color:var(--slate)}
.book-content{padding-top:54px}
.lead{max-width:620px;margin:0;color:#314b58;font-size:20px;line-height:1.58;letter-spacing:-.01em}
.book-points{margin:30px 0 32px;border-top:1px solid var(--line)}
.book-point{display:flex;align-items:baseline;gap:22px;padding:17px 0;border-bottom:1px solid var(--line)}
.book-point span{flex:none;color:var(--orange-text);font-weight:800;font-size:11px;letter-spacing:.08em}
.book-point p{margin:0;color:#475e68;font-size:15px;line-height:1.5}
.format-note{margin:14px 0 0;color:var(--slate);font-size:12px}
.book-actions{display:flex;align-items:center;flex-wrap:wrap;gap:22px}
.quote-band{background:var(--orange);overflow:hidden}
.quote-inner{display:flex;align-items:center;gap:18px;min-height:170px;position:relative}
.quote-mark{font-size:110px;line-height:0;font-weight:800;color:rgba(23,42,53,.22);transform:translateY(26px)}
.quote-inner p{position:relative;z-index:1;max-width:870px;margin:0;color:#1e2b30;font-size:clamp(1.5rem,2.9vw,2.6rem);line-height:1.22;letter-spacing:-.035em;font-weight:800}
.quote-route{position:absolute;right:-70px;top:-100px;width:450px;height:350px;border:34px solid rgba(255,255,255,.16);border-left:0;border-bottom:0;border-radius:100% 0 0 0;transform:rotate(20deg)}
.next-section{background:#edf3f5}
.next-grid{display:grid;grid-template-columns:1fr .95fr;gap:100px;align-items:center}
.next-section h2{font-size:clamp(2.7rem,4.5vw,4.9rem);line-height:1.06;color:var(--night)}
.next-section h2 span{color:var(--orange-text)}
.next-copy .next-lead{max-width:530px;margin:28px 0 0;color:#405966;font-size:17px;line-height:1.7}
.next-release{display:inline-block;margin:30px 0 0;padding:12px 16px;border-left:4px solid var(--orange);background:#fff;color:var(--night);font-size:13px;font-weight:800;letter-spacing:.025em}
.next-actions{margin-top:28px}
.next-book-art{position:relative;display:flex;align-items:center;justify-content:center;min-height:570px;background:linear-gradient(135deg,#0c2532,#315565);overflow:hidden}
.next-book-art .hero-art-glow{width:420px;height:420px;transform:none}
.next-book-art .book-wrap{width:min(300px,70%)}
.next-book-art .book-tag{right:-35px}
.about-section{background:#173442;color:var(--white)}
.about-grid{display:grid;grid-template-columns:.63fr 1fr;gap:120px;align-items:center}
.about-icon{position:relative;min-height:270px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#28505f,#0d2a37);border:1px solid rgba(255,255,255,.1);overflow:hidden}
.about-icon:before,.about-icon:after{content:"";position:absolute;inset:0;border:1px solid rgba(255,255,255,.09);transform:rotate(20deg) scale(1.3)}
.about-icon:after{transform:rotate(20deg) scale(.82)}
.about-icon img{position:relative;z-index:1;width:72%;background:#fff;padding:11%;box-shadow:0 16px 32px rgba(0,0,0,.25)}
.about-section h2{font-size:clamp(2.7rem,4vw,4.5rem);line-height:1.05;max-width:680px}
.about-copy>p:not(.eyebrow){max-width:660px;margin:25px 0 27px;color:#c8dae1;font-size:17px;line-height:1.67}
.contact-section{background:#f4f7f8}
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:110px;align-items:start}
.contact-intro h2{margin:0;color:var(--night);font-size:clamp(3rem,5vw,5.2rem);line-height:1.02;letter-spacing:-.055em}
.contact-intro>p:not(.eyebrow){max-width:440px;margin:27px 0 0;color:#4c6570;font-size:17px;line-height:1.7}
.contact-form{background:var(--white);padding:40px;border-top:5px solid var(--orange);box-shadow:0 20px 40px rgba(28,65,80,.07)}
.contact-field-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.contact-field{display:flex;flex-direction:column;gap:9px;margin-bottom:21px}
.contact-field label{font-size:12px;font-weight:800;letter-spacing:.03em;color:var(--night)}
.contact-field input,.contact-field textarea{width:100%;border:1px solid #bacbd2;border-radius:2px;padding:13px 14px;background:#fff;color:var(--ink);font:inherit;font-size:15px;line-height:1.5}
.contact-field textarea{resize:vertical;min-height:145px}
.contact-field input:focus-visible,.contact-field textarea:focus-visible,.contact-form button:focus-visible{outline:3px solid var(--orange);outline-offset:2px}
.contact-trap{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.contact-submit-row{display:flex;align-items:center;gap:23px;flex-wrap:wrap}
.contact-submit-row button{border:0;cursor:pointer}
.contact-submit-row button:disabled{opacity:.7;cursor:wait}
.contact-submit-row p{max-width:230px;margin:0;color:var(--slate);font-size:12px;line-height:1.5}
.contact-status{margin:22px 0 0;padding:13px 16px;border-left:4px solid var(--night);background:#ecf2f4;color:var(--night);font-size:14px;line-height:1.5}
.contact-status[data-state="error"]{border-left-color:#b34822;background:#fff2ec;color:#71371e}
.contact-result{min-height:100vh;display:flex;align-items:center;background:#f4f7f8;padding-block:80px}
.contact-result h1{margin:0;color:var(--night);font-size:clamp(3rem,6vw,5rem);letter-spacing:-.05em}
.contact-result p:not(.eyebrow){max-width:600px;color:var(--slate);font-size:18px;line-height:1.6;margin:22px 0 30px}
.site-footer{background:#f7f9f9}
.footer-top{display:flex;align-items:center;justify-content:space-between;gap:35px;padding:43px 0;border-bottom:1px solid var(--line)}
.footer-brand{width:250px;flex:none}
.footer-links{display:flex;gap:27px;flex-wrap:wrap;color:#465e69;font-size:13px;font-weight:700}
.footer-bottom{display:flex;justify-content:space-between;gap:25px;padding:23px 0 30px;color:var(--slate);font-size:11px;line-height:1.5}
.footer-bottom p{margin:0}
.book-page-grid{min-height:640px;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:70px}
.book-page-hero h1{font-size:clamp(3.4rem,5.6vw,6rem)}
.edition-page-hero h1{font-size:clamp(3rem,4.5vw,4.8rem)}
.book-page-subtitle{max-width:560px;margin:24px 0 0;color:#f2f6f7;font-size:clamp(1.25rem,2vw,1.75rem);line-height:1.3;font-weight:700}
.book-page-hero .hero-description{margin-top:20px}
.book-page-byline{margin:36px 0 0;color:#b8ccd4;font-size:11px;font-weight:800;letter-spacing:.14em}
.book-detail-intro{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:end;margin-bottom:42px}
.book-detail-intro h2,.book-audience-section h2,.book-buy-section h2{margin:0;font-size:clamp(2.5rem,4vw,4.2rem);line-height:1.07;letter-spacing:-.05em}
.book-detail-intro>p,.book-audience-grid p{margin:0;color:#405966;font-size:17px;line-height:1.7}
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.topic-card{padding:30px 28px 32px;background:#f1f6f7;border-top:4px solid var(--orange)}
.topic-number{color:var(--orange-text);font-size:10px;font-weight:800;letter-spacing:.13em}
.topic-card h3{margin:22px 0 12px;color:var(--night);font-size:24px;line-height:1.18;letter-spacing:-.035em}
.topic-card p{margin:0;color:#4e6671;font-size:15px;line-height:1.65}
.book-detail-list{display:grid;grid-template-columns:1fr 2fr;gap:40px;margin-top:54px;padding-top:30px;border-top:1px solid var(--line)}
.book-detail-list h3{margin:0;color:var(--night);font-size:22px;line-height:1.2}
.book-detail-list ul{margin:0;padding-left:20px;color:#4e6671;font-size:15px;line-height:1.8}
.book-detail-list li+li{margin-top:7px}
.book-preview{display:grid;grid-template-columns:.8fr 1.2fr;gap:22px 70px;margin-top:62px;padding:38px 42px;background:#f1f6f7;border-left:5px solid var(--orange)}
.book-preview .eyebrow{margin-bottom:17px}
.book-preview h3{margin:0;color:var(--night);font-size:clamp(1.7rem,2.6vw,2.4rem);line-height:1.12;letter-spacing:-.04em}
.book-preview p{color:#405966;font-size:15px;line-height:1.65}
.book-preview ol{margin:0;padding-left:23px;color:#405966;font-size:15px;line-height:1.6}
.book-preview li+li{margin-top:12px}
.book-preview li strong{color:var(--night)}
.book-preview .book-preview-source{grid-column:1/-1;margin:0;padding-top:18px;border-top:1px solid var(--line);font-size:12px}
.book-preview a,.author-context a{text-decoration:underline;text-underline-offset:3px}
.book-audience-section{background:#edf3f5}
.book-audience-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px}
.book-audience-grid p+p{margin-top:18px}
.book-audience-grid a{text-decoration:underline;text-underline-offset:3px}
.author-context{margin-top:65px;padding-top:25px;border-top:1px solid #cbdbe1}
.author-context .eyebrow{margin-bottom:12px}
.author-context>p:last-child{max-width:900px;margin:0;color:#405966;font-size:16px;line-height:1.65}
.book-buy-section{background:var(--night);color:#fff}
.book-buy-inner{max-width:900px;text-align:center}
.book-buy-inner .eyebrow{justify-content:center}
.book-buy-section h2 em{font-style:normal;color:var(--orange)}
.book-buy-section p:not(.eyebrow){max-width:700px;margin:23px auto 0;color:#d1e1e7;font-size:17px;line-height:1.65}
.book-buy-actions{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:24px;margin-top:35px}
.not-found-main{min-height:calc(100vh - 86px);display:flex;align-items:center;background:linear-gradient(120deg,var(--night-deep),#315565);color:#fff;padding-block:80px}
.not-found-main h1{max-width:780px;margin:0;font-size:clamp(3rem,7vw,6rem);line-height:1;letter-spacing:-.06em}
.not-found-main p:not(.eyebrow){max-width:620px;color:#d1e1e7;font-size:18px;line-height:1.6}
@media(max-width:1050px){.header-inner{gap:20px}.brand{width:198px}.primary-nav{gap:18px}.hero-grid{gap:24px}.book-grid,.next-grid{gap:60px}.about-grid,.contact-grid{gap:65px}}
@media(max-width:1050px){.book-page-grid{gap:24px}.book-detail-intro,.book-audience-grid{gap:50px}}
@media(max-width:800px){.shell{width:min(100% - 38px,680px)}.site-header{position:static}.header-inner{min-height:75px;flex-wrap:wrap;gap:9px 18px;padding-block:14px}.brand{width:200px}.primary-nav{order:3;width:100%;margin:2px 0 0;justify-content:space-between;font-size:12px}.header-cta{margin-left:auto;font-size:11px;padding:11px 12px}.hero-grid{min-height:0;grid-template-columns:1fr;gap:0}.hero-copy{padding:75px 0 16px}.hero h1{font-size:clamp(3.5rem,10vw,5.8rem)}.hero-art{min-height:390px;padding:25px 0 45px}.hero-art-glow{width:400px;height:400px}.book-wrap{width:225px}.book-tag{right:-68px}.hero-footnote{margin-top:43px}.principles-grid{grid-template-columns:1fr}.principle,.principle+.principle{padding:23px 0;border-left:0;border-bottom:1px solid var(--line)}.principle:last-child{border-bottom:0}.section-pad{padding-block:75px}.book-grid,.next-grid,.about-grid,.contact-grid{grid-template-columns:1fr;gap:26px}.book-content{padding-top:0}.lead{font-size:18px}.next-book-art{min-height:540px}.contact-form{padding:31px}.about-icon{min-height:220px;max-width:450px}.footer-top,.footer-bottom{flex-direction:column;align-items:flex-start}.footer-top{padding-block:33px}.footer-bottom{gap:7px}}
@media(max-width:800px){.book-page-grid,.book-detail-intro,.book-audience-grid,.book-detail-list{grid-template-columns:1fr;gap:28px}.book-page-grid .hero-copy{padding-bottom:0}.book-page-grid .hero-art{min-height:390px;padding:25px 0 55px}.topic-grid{grid-template-columns:1fr}.book-detail-intro{margin-bottom:30px}}
@media(max-width:800px){.book-preview{grid-template-columns:1fr;gap:20px;margin-top:45px;padding:28px}.author-context{margin-top:45px}}
@media(max-width:800px){.hero-grid .hero-art{min-height:460px;padding:55px 0 65px}.hero-books{max-width:520px;gap:28px}.hero-books .book-wrap{width:calc((100% - 28px)/2)}}
@media(max-width:430px){.header-cta{display:none}.primary-nav{gap:4px 13px;flex-wrap:wrap;justify-content:flex-start;font-size:11px}.hero-copy{padding-top:61px}.hero h1{font-size:clamp(3.15rem,14vw,4.2rem)}.hero-description{font-size:15px}.hero-actions{gap:23px}.hero-art{min-height:330px}.book-wrap{width:185px}.book-tag{right:-54px;font-size:8px;padding:10px}.next-book-art{min-height:calc(105vw + 24px)}.next-book-art .book-tag{right:-24px}.quote-inner{min-height:140px}.quote-mark{font-size:70px;transform:translateY(18px)}.book-subtitle{font-size:19px}.section-heading h2{font-size:3rem}.contact-field-row{grid-template-columns:1fr;gap:0}.contact-form{padding:25px}}
@media(max-width:430px){.hero-grid .hero-art{min-height:320px;padding:50px 0 55px}.hero-books{gap:14px}.hero-books .book-wrap{width:calc((100% - 14px)/2)}.hero-books .book-tag{left:0;right:0;top:-29px;max-width:100%;padding:7px 5px;font-size:7px;line-height:1.15;letter-spacing:.06em;text-align:center;white-space:normal}.hero-grid .hero-art-glow{width:320px;height:320px}.hero-footnote{flex-wrap:wrap;gap:7px}}
@media(max-width:430px){.edition-page-hero h1{font-size:clamp(2.8rem,11vw,3.5rem)}.edition-page-hero .book-wrap{width:185px}.edition-page-hero .book-tag{right:-25px}.book-preview{padding:23px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}