:root{--bg:#f6f3ec;--paper:#fffdf8;--ink:#0b0b0b;--muted:#555;--line:#ddd5c7;--dark:#111}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;line-height:1.62}img{max-width:100%;display:block}a{color:inherit}.skip{position:absolute;left:-999px}.skip:focus{left:20px;top:20px;background:#fff;padding:10px;z-index:999}
.header{position:sticky;top:0;background:rgba(255,253,248,.94);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);z-index:50}.header-inner{max-width:1220px;margin:auto;padding:16px 22px;display:flex;align-items:center;justify-content:space-between;gap:22px}.brand{text-decoration:none;font-weight:950;letter-spacing:-.055em;font-size:22px;line-height:1}.brand small{display:block;font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:#666;font-weight:900;margin-top:7px}.nav{display:flex;gap:22px;font-weight:900;font-size:14px}.nav a{text-decoration:none;color:#303030}.lang{border:1px solid var(--line);border-radius:999px;padding:8px 12px;background:#fff;font-weight:900}
.container{max-width:1220px;margin:auto;padding:0 22px}.hero{padding:92px 0 76px}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:68px;align-items:center}.kicker{text-transform:uppercase;letter-spacing:.24em;font-size:12px;color:#666;font-weight:950;margin-bottom:20px}h1{font-size:clamp(46px,7vw,90px);line-height:.92;letter-spacing:-.075em;margin:0 0 28px;font-weight:950}h2{font-size:clamp(34px,4.8vw,60px);line-height:.98;letter-spacing:-.06em;margin:0 0 20px;font-weight:950}h3{font-size:26px;line-height:1.12;letter-spacing:-.035em;margin:0 0 12px;font-weight:950}.lead{font-size:clamp(19px,2.1vw,27px);line-height:1.38;color:#333;margin:0 0 34px;max-width:780px}.actions{display:flex;gap:14px;flex-wrap:wrap}.btn{display:inline-flex;text-decoration:none;align-items:center;justify-content:center;border-radius:999px;padding:15px 23px;font-weight:950;border:1px solid var(--dark);transition:.18s}.btn.primary{background:#111;color:#fff}.btn.secondary{background:transparent}.btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(0,0,0,.12)}
.hero-card{border-radius:34px;overflow:hidden;position:relative;box-shadow:0 28px 80px rgba(0,0,0,.16);background:#ddd}.hero-card img{width:100%;height:610px;object-fit:cover}.hero-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(0,0,0,.52))}.caption{position:absolute;left:24px;right:24px;bottom:24px;color:#fff;font-weight:950;font-size:20px;z-index:2}
.section{padding:92px 0}.paper{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.section-head{max-width:860px;margin-bottom:52px}.section-head p,.xl{font-size:21px;color:#444;line-height:1.52}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.card{background:#fff;border:1px solid var(--line);border-radius:28px;overflow:hidden;box-shadow:0 12px 36px rgba(0,0,0,.045)}.card img{height:245px;width:100%;object-fit:cover}.card-body{padding:28px}.card p{margin:0;color:#555}.feature{display:grid;grid-template-columns:.95fr 1.05fr;gap:62px;align-items:center}.feature img{height:555px;width:100%;object-fit:cover;border-radius:34px;box-shadow:0 25px 72px rgba(0,0,0,.14)}
.pillars{display:grid;gap:16px;margin-top:30px}.pillar{background:#fff;border-left:5px solid #111;border-radius:0 22px 22px 0;padding:22px 24px}.pillar strong{display:block;font-size:21px;margin-bottom:5px}
.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.topic{display:flex;justify-content:space-between;gap:20px;text-decoration:none;background:#fff;border:1px solid var(--line);border-radius:24px;padding:25px}.topic strong{font-size:22px;letter-spacing:-.03em}.topic span{color:#666;max-width:520px}
.resource-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px}.resource-button{background:#fff;color:#111;text-decoration:none;padding:22px;border-radius:22px;font-weight:950;display:flex;flex-direction:column;gap:8px;border:1px solid var(--line)}.resource-button span{font-weight:600;color:#555;font-size:14px}
.preview{background:#111;color:#fff}.preview .section-head p{color:#ccc}.book-wrap{display:grid;grid-template-columns:.78fr 1.22fr;gap:68px;align-items:center}.book-cover{background:#fff;border-radius:34px;padding:30px;box-shadow:0 25px 70px rgba(0,0,0,.12)}.book-cover img{border-radius:20px}.badge-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:30px}.badge{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px}.badge b{display:block;font-size:29px;letter-spacing:-.06em}
.page-hero{background:var(--paper);border-bottom:1px solid var(--line);padding:82px 0 50px}.page-hero h1{font-size:clamp(43px,6.2vw,78px)}.content{max-width:920px;margin:auto;padding:70px 22px}.content img.main-img{border-radius:30px;margin:0 0 42px;width:100%;max-height:560px;object-fit:cover}.content h2{font-size:38px;margin-top:44px}.content p,.content li{font-size:19px;color:#333}.content a{font-weight:900}.callout{background:#fff;border:1px solid var(--line);border-radius:26px;padding:28px;margin:38px 0}.related{max-width:980px;margin:0 auto 80px;padding:0 22px}
.preview-hero-img{width:100%;max-height:520px;object-fit:cover;border-radius:30px;box-shadow:0 24px 60px rgba(0,0,0,.14);margin-bottom:36px}.preview-pages{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin:35px 0}.preview-pages img{background:#fff;border-radius:18px;box-shadow:0 20px 50px rgba(0,0,0,.12);width:100%;height:620px;object-fit:contain}
.author-box{display:grid;grid-template-columns:.9fr 1.1fr;gap:38px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:30px;padding:34px}.author-box img{border-radius:24px;width:100%;height:460px;object-fit:cover}.book-gallery{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:36px 0}.book-gallery img{border-radius:28px;width:100%;height:560px;object-fit:cover;box-shadow:0 20px 60px rgba(0,0,0,.12)}
.footer{background:#111;color:#fff;padding:44px 0}.footer-inner{display:flex;justify-content:space-between;gap:28px;flex-wrap:wrap}.footer-links{display:flex;gap:17px;flex-wrap:wrap;color:#ccc}.footer-links a{text-decoration:none}
@media(max-width:960px){.nav{display:none}.hero-grid,.feature,.book-wrap,.grid-3,.topic-grid,.resource-nav,.preview-pages,.author-box,.book-gallery{grid-template-columns:1fr}.hero-card img,.feature img{height:420px}.section{padding:70px 0}.preview-pages img,.book-gallery img{height:auto}}

.preview-copy{background:#fff;border:1px solid var(--line);border-radius:28px;padding:34px;margin:34px 0}
.preview-copy h2{font-size:34px;margin:22px 0 12px}
.preview-copy h2:first-child{margin-top:0}
.preview-copy blockquote{margin:18px 0 28px;padding:24px 28px;border-left:6px solid #111;background:#f6f3ec;border-radius:0 20px 20px 0;font-family:Georgia,serif;font-size:24px;line-height:1.38;color:#111}
.author-details{display:grid;gap:24px;margin-top:38px}
.author-details section{background:#fff;border:1px solid var(--line);border-radius:26px;padding:30px}
.author-details h2{font-size:34px;margin:0 0 14px}
.author-details p{margin:0}