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/* Editorial refinement: closer composition, author portrait and publishing identity. */
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@media(min-width:1500px){.hero-grid{padding-top:75px;padding-bottom:80px}.hero-visual{min-height:625px}.book{width:330px}}
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/* Keep all five labelled vertices visible while enlarging the PDF detail. */
.practice-art .diagram-crop>img{top:0;left:0;width:100%;transform:translateY(-26%)}
@media(max-width:380px){.nav nav>a:nth-child(2){display:none}.hero-visual{min-height:510px}.book{width:235px}.hero .book-caption{left:0}.round-seal{width:76px;height:76px;bottom:76px}.round-seal strong{font-size:29px}.round-seal span{font-size:6px}.author-photo figcaption>strong{font-size:30px}.practice-art{padding-left:18px;padding-right:18px}.diagram-crop{margin-left:-18px;margin-right:-18px}}

/* Mobile reading and purchase layout, shared across the two editions. */
@media(max-width:740px){
:root{font-size:16px}body{font-size:16px;line-height:1.65}.wrap{width:calc(100% - 36px);min-width:0}.section{padding:42px 0}.nav{height:66px;gap:12px}.nav nav{display:none}.nav .brand{font-size:9px;letter-spacing:.09em;gap:8px}.nav .brand img{width:31px;height:31px}.brand small{font-size:6px;letter-spacing:.12em}.nav-buy{display:flex;align-items:center;min-height:44px;padding:8px 11px;font-size:11px;white-space:nowrap}.nav-buy span{margin-left:8px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:16px 12px;padding:26px 0 25px;align-items:center}.hero-copy{display:contents}.hero .eyebrow{grid-column:1/-1;grid-row:1;font-size:10px;margin:0;letter-spacing:.11em}.hero h1{grid-column:1;grid-row:2;font-size:clamp(31px,8.5vw,39px);line-height:1.08;margin:0;letter-spacing:-.035em;overflow-wrap:normal}.hero h1>br{display:none}.hero h1 em{display:block;margin-top:7px}.hero h1 em br{display:none}.hero-visual{grid-column:2;grid-row:2;min-height:0;height:auto;width:100%;max-width:none;margin:0;padding:12px 8px 15px 0;perspective:800px;align-self:center}.hero .book{width:100%;max-width:145px;transform:rotateY(-9deg) rotateZ(3deg);box-shadow:-8px 12px 22px #0006}.book:after{width:8px}.hero .book-caption,.hero .round-seal,.hero .orbit{display:none}.hero .lead{grid-column:1/-1;grid-row:3;font-size:17px;line-height:1.6;margin:2px 0 0;max-width:none;color:#e1e8e5}.hero-sub{grid-column:1/-1;grid-row:4;font-size:14px;line-height:1.65;margin:0;max-width:none;color:#bbced1}.hero-actions{grid-column:1/-1;grid-row:5;display:grid;grid-template-columns:1fr;gap:12px;margin:2px 0 0}.hero-actions .button{width:100%;min-height:52px;font-size:12px;padding:16px 18px;letter-spacing:.04em}.hero-actions .text-link{min-height:44px;justify-self:center;font-size:13px;padding:10px 0;gap:15px}.hero-price{grid-column:1/-1;grid-row:6;margin:0;font-size:13px;text-align:center}.hero-price strong{font-size:17px}.hero-price>span{margin-left:4px}.hero-bottom{font-size:8px;gap:10px;padding:13px 0}.hero-bottom>span:nth-child(2){display:none}
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16px);max-height:94dvh;padding:54px 8px 12px}.page-dialog .close-dialog{width:44px;height:44px}.page-dialog p{font-size:14px}.checkout-dialog{width:calc(100% - 32px)}
}
@media(max-width:350px){.wrap{width:calc(100% - 30px)}.hero h1{font-size:30px}.hero-grid{gap:14px 9px}.hero .lead{font-size:16px}.hero-sub{font-size:14px}.nav .brand{font-size:8px}.nav .brand img{width:26px;height:26px}.nav-buy{font-size:10px;padding:8px}.hero-price{font-size:12px}.mobile-bar{padding-left:15px;padding-right:15px}.mobile-bar .button{font-size:11px;padding:13px}.flame-pillars{grid-template-columns:1fr!important}.flame-pillars>div{display:grid;grid-template-columns:1fr 1fr;gap:3px 8px}.flame-pillars small{grid-column:1/-1}}

.cta-mobile-label{display:none}.hero-actions .button>.cta-desktop-label{font:inherit}@media(max-width:740px){html,body{overflow-x:clip}.hero-actions .button>.cta-desktop-label{display:none}.hero-actions .button>.cta-mobile-label{display:inline;font:inherit}.gallery{max-width:calc(100% + 18px)}}