:root{--ink:#0c171d;--navy:#101f27;--gold:#dfbb77;--paper:#f5f3ed;--muted:#bbc4c8;--line:#ffffff29}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--ink);color:var(--paper);font-family:Arial,Helvetica,sans-serif;font-size:17px;line-height:1.65}a{color:inherit;text-underline-offset:5px}a,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:7px}.wrap{width:min(1200px,calc(100% - 96px));margin-inline:auto}.header{border-bottom:1px solid var(--line);background:var(--ink)}.header-inner{display:flex;justify-content:space-between;gap:30px;align-items:center;min-height:100px}.wordmark{font-family:Georgia,serif;font-size:19px;line-height:1.18;letter-spacing:2px;text-decoration:none;color:var(--gold)}.wordmark span{display:block}nav{display:flex;gap:32px;font-size:14px}nav a{text-decoration:none}nav a:hover,.text-link:hover{color:var(--gold)}.hero{display:grid;grid-template-columns:1.18fr .82fr;gap:8%;align-items:center;padding-block:72px 64px}.eyebrow{text-transform:uppercase;letter-spacing:2.4px;font-size:12px;line-height:1.6;font-weight:700;color:var(--gold);margin:0 0 24px}h1,h2,h3,p,figure{margin-top:0}h1,h2,h3{font-family:Georgia,'Times New Roman',serif;font-weight:400;line-height:1.1}h1{font-size:clamp(40px,4.05vw,60px);letter-spacing:-1.8px;margin-bottom:28px}em{font-weight:400;color:var(--gold)}.hero-intro{max-width:490px;color:var(--muted);font-size:18px;line-height:1.7}.actions{display:flex;gap:26px;align-items:center;flex-wrap:wrap;margin-block:34px 42px}.button{padding:14px 24px;text-decoration:none;font-size:15px;font-weight:700;display:inline-flex;justify-content:center;min-height:48px}.gold{background:var(--gold);color:var(--ink);border:1px solid var(--gold)}.gold:hover{background:#f1ce8e}.text-link{font-size:15px}.book-title{border-top:1px solid var(--line);padding-top:22px;font-size:14px}.book-title strong{letter-spacing:2px;color:var(--gold);font-size:12px;display:block}.book-title span{color:var(--muted)}.cover{margin:0;max-width:388px;justify-self:end}.cover img{display:block;width:100%;height:auto;box-shadow:0 24px 60px #0009;border:1px solid #ffffff26}.cover figcaption{font-size:12px;letter-spacing:2px;text-transform:uppercase;color:#9caaaf;text-align:center;margin-top:25px}.book-section{background:var(--paper);color:var(--ink);padding-block:94px}.intro-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:9%}.book-section .eyebrow,.author .eyebrow{color:#80602c}h2{font-size:clamp(34px,3.4vw,48px);letter-spacing:-1px;margin-bottom:26px}.prose p{margin-bottom:22px}.prose p:last-child{margin-bottom:0}.lead{font-size:22px;line-height:1.55;font-family:Georgia,serif}.definition{text-align:center;padding-block:82px}.definition blockquote{font:400 clamp(26px,3vw,43px)/1.45 Georgia,serif;margin:0 0 20px;letter-spacing:-.5px}.definition>p:last-child{color:var(--muted);font-size:15px;margin:0}.ideas-section{background:var(--navy);padding-block:80px}.section-heading{display:flex;justify-content:space-between;gap:60px;align-items:end;margin-bottom:34px}.section-heading h2{margin-bottom:0}.section-heading>p{max-width:350px;color:var(--muted);font-size:16px;margin:0}.signs{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line)}summary{display:flex;align-items:center;gap:28px;padding:22px 0;list-style:none;cursor:pointer;font:26px/1.3 Georgia,serif}summary::-webkit-details-marker{display:none}.number{font:13px Arial,sans-serif;letter-spacing:1px;color:var(--gold);width:24px;flex-shrink:0}.toggle{margin-left:auto;width:16px;flex-shrink:0;height:16px;position:relative}.toggle:before,.toggle:after{content:'';position:absolute;background:var(--gold);width:16px;height:1px;top:8px;left:0}.toggle:after{transform:rotate(90deg)}details[open] .toggle:after{display:none}.detail-body{padding:0 48px 24px 52px;max-width:850px;color:var(--muted)}.detail-body p{margin-bottom:12px}.detail-body .question{color:var(--gold);margin:0;font-size:16px}.inside{padding-block:88px}.chapters{display:grid;grid-template-columns:repeat(2,1fr);gap:0 65px;margin-top:44px}.chapters article{border-top:1px solid var(--line);padding-block:28px 22px}.chapter-label{font-size:12px;letter-spacing:1.8px;color:var(--gold);text-transform:uppercase}.chapters h3{font-size:29px;margin:15px 0}.chapters p{color:var(--muted);font-size:16px;max-width:490px}.statement{background:#203340;text-align:center;padding:80px 0}.statement h2{font-size:clamp(36px,4vw,57px)}.statement p:last-child{max-width:720px;margin:0 auto;color:#d4dadd}.author{background:var(--paper);color:var(--ink);display:grid;grid-template-columns:.9fr 1.1fr;gap:9%;padding:90px max(48px,calc((100vw - 1200px)/2));width:100%}.author h2{margin-bottom:12px}.credentials{letter-spacing:3px;font-size:16px}.author-rule{height:1px;background:#b69a65;width:65px;margin:26px 0}.author-fields{color:#5d6669;font-size:14px;line-height:1.9}.dark-link:hover{color:#80602c}.contact{padding-block:83px;background:var(--ink)}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:10%}.contact p:not(.eyebrow){color:var(--muted);max-width:410px}.contact-item{display:block;text-decoration:none;border-top:1px solid var(--line);padding:18px 0}.contact-item span{display:block;font-size:13px;color:var(--muted);margin-bottom:5px}.contact-item strong{font-size:clamp(16px,1.5vw,21px);font-weight:400;color:var(--gold);overflow-wrap:anywhere}.contact-item:hover strong{text-decoration:underline}.footer{border-top:1px solid var(--line);padding-block:25px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:var(--muted)}.footer a{text-decoration:none}.skip{position:absolute;left:20px;top:-100px;z-index:10;background:var(--gold);color:var(--ink);padding:12px}.skip:focus{top:10px}@media(min-width:1600px){.hero{padding-block:90px}}@media(max-width:900px){.wrap{width:calc(100% - 48px)}.hero{gap:6%;padding-block:50px}.cover{max-width:330px}.eyebrow{font-size:12px;letter-spacing:1.6px}.hero-intro{font-size:16px}.actions{gap:18px}h1{font-size:42px}.intro-grid,.author{gap:6%;grid-template-columns:1fr 1.15fr}.author{width:100%;padding-inline:24px}.section-heading{gap:30px}.section-heading>p{max-width:290px}.contact-grid{gap:6%}.contact-item strong{font-size:16px}}@media(max-width:650px){html{scroll-padding-top:20px}.wrap{width:calc(100% - 40px)}.header-inner{flex-direction:column;align-items:flex-start;gap:20px;padding-block:20px;min-height:0}.wordmark{font-size:17px}.wordmark span{display:inline}.header nav{gap:0;justify-content:space-between;width:100%;font-size:14px}.hero{grid-template-columns:1fr;padding-block:40px 45px;gap:36px}h1{font-size:44px;letter-spacing:-1.4px}.hero-intro{font-size:17px}.actions{margin-block:28px 30px}.cover{justify-self:center;width:76%;max-width:300px}.cover figcaption{font-size:11px;letter-spacing:1.1px}.book-section,.ideas-section,.inside,.contact{padding-block:56px}.intro-grid,.author,.contact-grid{grid-template-columns:1fr;gap:24px}.lead{font-size:21px}.definition{padding-block:54px}.definition blockquote{font-size:27px}.section-heading{display:block}.section-heading>p{max-width:none;margin-top:23px}.section-heading h2{font-size:38px}summary{font-size:24px;gap:16px}.detail-body{padding-left:40px;padding-right:8px}.chapters{grid-template-columns:1fr;gap:0}.chapters h3{font-size:28px}.statement{padding-block:55px}.statement h2{font-size:39px}.author{width:100%;padding:55px 20px}.author-fields,.author-rule{display:none}.contact-item strong{font-size:18px}.footer{flex-direction:column;gap:8px}.footer a{align-self:flex-start}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{body{background:#fff;color:#000}.header,.actions,.contact,.footer,.cover{display:none}.hero,.intro-grid,.author,.contact-grid{display:block}.wrap{width:100%}.hero,.book-section,.definition,.ideas-section,.inside,.statement,.author{padding:20px 0;background:#fff;color:#000}h1{font-size:30px}h2{font-size:24px}p,.eyebrow,em,.chapters p,.section-heading>p,.hero-intro,.detail-body,.detail-body .question{color:#000!important}.chapters{gap:20px}.definition blockquote{font-size:24px}details{break-inside:avoid}summary{font-size:20px}.book-title{display:none}}
/* First-edition sales update, October 2026 */
.nav-buy{color:var(--gold);font-weight:700}.hero-support{color:var(--muted);max-width:510px}.cover figcaption{letter-spacing:1px;line-height:1.6}.club-section{background:#203340;padding-block:86px}.club-tagline{color:var(--gold);font:27px/1.4 Georgia,serif}.club-start{margin-top:44px;border-top:1px solid #ffffff40;padding-top:32px;max-width:860px}.club-start h3{font-size:29px}.club-start ol{padding-left:25px}.club-start li{padding:6px 0 6px 10px}.club-section .actions{margin-bottom:0}.club-invitation{font-size:15px;color:#d4dadd}.small-note{font-size:14px;color:var(--muted);line-height:1.65}.excerpt-section{padding-block:86px}.excerpt blockquote{margin:0 0 28px;border-left:2px solid var(--gold);padding-left:26px;color:#dce1e3;font:20px/1.65 Georgia,serif}.buy-section{padding-block:88px;background:#13252e}.buy-grid{display:grid;grid-template-columns:1fr 1fr;gap:10%;align-items:center}.purchase-panel{border:1px solid #dfbb7770;padding:32px;background:#0c171d}.purchase-panel h3{font-size:32px;margin-bottom:12px}.purchase-panel>p{color:var(--muted);font-size:16px}.purchase-panel .small-note{font-size:13px;margin:20px 0 0}.store-link{display:flex;justify-content:space-between;gap:15px;margin-top:14px;text-align:left}.mobile-buy{display:none}.contact h2{font-size:36px}.contact{padding-block:60px}nav a{padding-block:12px}a.dark-link:focus-visible{outline-color:#80602c}
@media(max-width:650px){.club-section,.excerpt-section,.buy-section{padding-block:56px}.buy-grid{grid-template-columns:1fr;gap:22px}.purchase-panel{padding:24px}.header nav{gap:12px;flex-wrap:wrap}.hero .cover{width:70%;max-width:260px}.hero .actions .button{min-width:165px}.mobile-buy{display:block;position:fixed;bottom:12px;right:16px;background:var(--gold);color:var(--ink);font-size:15px;font-weight:700;padding:12px 22px;text-decoration:none;box-shadow:0 3px 20px #0008;border:1px solid #0c171d;z-index:5}.footer{padding-bottom:88px}.club-start{margin-top:26px}.excerpt blockquote{padding-left:19px;font-size:19px}.author h2{font-size:36px}.club-invitation{display:block}.cover figcaption{font-size:11px}.hero-intro{font-size:20px}.hero-support{font-size:17px}.buy-section h2{font-size:38px}}
@media print{.mobile-buy,.buy-section,.club-section .actions{display:none}.club-section,.excerpt-section{background:#fff;color:#000;padding:20px 0}.excerpt blockquote,.small-note,.club-tagline{color:#000}.club-start{break-inside:avoid}}

/* Softer question section with explicit, high-contrast text. */
@media screen {
.book-section{background:#1b2a31;color:#e2e7e8}
.book-section h2,.book-section .lead{color:#f4ead7}
.book-section .prose p{color:#e2e7e8}
.book-section .prose .lead{color:#f4ead7}
.book-section .eyebrow{color:#dfbb77}
}

/* Readable author section, consistent with the question section. */
@media screen {
.author{background:#1b2a31;color:#e2e7e8}
.author h2,.author .lead{color:#f4ead7}
.author .prose p{color:#e2e7e8}
.author .prose .lead{color:#f4ead7}
.author .eyebrow{color:#dfbb77}
.author .author-fields{color:#c9d3d7}
}

/* Version 4 summary: diagnosis and compact warning signs */
.diagnosis-section{padding-block:80px}.diagnosis-emphasis{color:var(--gold);font:24px/1.5 Georgia,serif}.diagnosis-section .prose p{color:#e2e7e8}.diagnosis-section .lead{color:#f4ead7}.book-section .definition-copy{border-left:2px solid var(--gold);padding-left:22px;font-family:Georgia,serif;font-size:21px}.warning-list article{display:grid;grid-template-columns:28px 1fr;gap:22px;border-top:1px solid var(--line);padding-block:22px}.warning-list .number{padding-top:7px}.warning-list h3{font-size:27px;margin-bottom:9px}.warning-list p{color:var(--muted);margin:0;max-width:900px}.symmetry-note{color:var(--gold);margin:26px 0 0;font-size:17px}.club-tagline{max-width:340px}
@media(max-width:650px){.diagnosis-section{padding-block:56px}.warning-list article{gap:14px}.warning-list h3{font-size:25px}.book-section .definition-copy{font-size:20px}}

/* Explicit foreground/background pairs prevent inherited preview theme colours. */
@media screen {
#site-page{background:#0c171d;color:#e2e7e8;color-scheme:dark}
#site-page header,#site-page main,#site-page footer,#site-page section{background:#0c171d;color:#e2e7e8}
#site-page .book-section,#site-page .author{background:#1b2a31;color:#e2e7e8}
#site-page .ideas-section{background:#101f27;color:#e2e7e8}
#site-page .club-section{background:#203340;color:#e2e7e8}
#site-page .buy-section{background:#13252e;color:#e2e7e8}
#site-page .purchase-panel{background:#0c171d;color:#e2e7e8}
#site-page h1,#site-page h2,#site-page h3{color:#f4ead7}
#site-page p,#site-page li,#site-page blockquote,#site-page figcaption,#site-page .footer span,#site-page .book-title span,#site-page .club-invitation,#site-page .contact-item span{color:#e2e7e8}
#site-page strong,#site-page b,#site-page i{color:inherit}
#site-page .eyebrow,#site-page .chapter-label,#site-page .number,#site-page .club-tagline,#site-page .diagnosis-emphasis,#site-page .symmetry-note,#site-page em,#site-page .book-title strong{color:#dfbb77}
#site-page a,#site-page .contact-item strong{color:#dfbb77}
#site-page a.button,#site-page a.button span,#site-page a.mobile-buy,#site-page a.skip{background:#dfbb77;color:#0c171d}
#site-page a.button:hover,#site-page a.mobile-buy:hover{background:#f1ce8e;color:#0c171d}
#site-page a:focus-visible{outline:3px solid #dfbb77;outline-offset:5px}
}

/* Launch update */
.hero .actions{gap:12px;margin-bottom:28px}.hero .actions .text-link{flex-basis:100%;margin-top:8px}.xray-figure{margin:28px 0 0;max-width:440px}.xray-figure img{display:block;width:100%;height:auto;border:1px solid #dfbb7766}.xray-figure figcaption{font-size:14px;line-height:1.55;margin-top:12px}.chapters{grid-template-columns:repeat(3,minmax(0,1fr));gap:30px}.reader-downloads{border-top:1px solid #ffffff40;margin-top:36px;padding-top:28px}.reader-downloads h3{font-size:27px;margin-bottom:16px}.download-link{display:block;width:fit-content;padding:9px 0;font-size:16px}.hero-copy,.prose{min-width:0}@media(max-width:900px){.chapters{grid-template-columns:1fr}.hero .actions .button{width:100%}}@media(max-width:650px){.hero .actions{width:100%}.xray-figure{max-width:100%}.download-link{line-height:1.5}.hero .actions .button{min-width:0}}