:root{
  --books-blue:#36b8ff;
  --books-blue-soft:#a8e5ff;
  --books-gold:#f6b817;
  --books-gold-soft:#ffd96a;
  --books-ink:#05080d;
  --books-panel:#0b111b;
}

html{scroll-padding-top:105px}
body.premium-books-page{background:#05080d;overflow-x:hidden}
.skip-link{position:fixed;left:18px;top:-70px;z-index:999999;padding:12px 18px;border-radius:12px;background:#fff;color:#07111f;font-weight:900;transition:top .2s}
.skip-link:focus{top:18px}

.books-hero{min-height:880px;padding:108px 0 100px;display:flex;align-items:center;border:0!important}
.books-hero .hero-video{opacity:.72!important;filter:brightness(.53) contrast(1.12) saturate(.86)!important}
.books-hero-overlay{background:radial-gradient(circle at 79% 42%,rgba(42,161,226,.19),transparent 28%),radial-gradient(circle at 18% 12%,rgba(246,184,23,.14),transparent 28%),linear-gradient(90deg,rgba(3,7,13,.97) 0%,rgba(5,10,18,.87) 47%,rgba(3,8,15,.72) 100%)!important}
.books-hero:after{height:250px;background:linear-gradient(180deg,transparent,#05080d)!important}
.books-hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(390px,.92fr);gap:clamp(42px,6vw,92px);align-items:center;width:min(calc(100% - 40px),1240px)}
.books-hero-copy{position:relative;z-index:5;max-width:760px}
.books-hero .eyebrow{margin-bottom:24px;color:var(--books-gold-soft);text-shadow:0 2px 18px rgba(0,0,0,.8)}
.books-hero h1{margin:0 0 28px;color:#f2f8ff;font-size:clamp(54px,5.7vw,82px);font-weight:900;line-height:.98;letter-spacing:-.057em;text-shadow:0 5px 30px rgba(0,0,0,.86)}
body.premium-books-page .books-hero h1>span{display:block!important;margin-bottom:14px;color:var(--books-gold-soft)!important;-webkit-text-fill-color:var(--books-gold-soft)!important;font-size:.55em;line-height:1.05;letter-spacing:-.035em;text-transform:none}
.books-hero .lead{max-width:690px;margin-bottom:32px;color:#dae6f2;font-size:clamp(18px,1.7vw,22px);line-height:1.65;text-shadow:0 2px 18px rgba(0,0,0,.85)}
.books-hero .btn.secondary{background:rgba(5,12,22,.68);border-color:rgba(168,229,255,.34);backdrop-filter:blur(14px)}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.hero-facts span{display:flex;align-items:center;gap:9px;padding:10px 15px;border:1px solid rgba(255,255,255,.14);border-radius:999px;background:rgba(7,15,27,.58);color:#cbd9e8;font-size:12px;font-weight:800;box-shadow:inset 0 0 0 1px rgba(54,184,255,.04)}
.hero-facts strong{color:var(--books-gold-soft);font-size:17px}

.cover-stage{position:relative;min-height:590px;display:flex;align-items:center;justify-content:center;margin-left:-34px;perspective:1500px;isolation:isolate}
.stage-book{position:absolute;margin:0;border-radius:6px;overflow:hidden;background:#050505;box-shadow:0 35px 80px rgba(0,0,0,.72),0 0 0 1px rgba(255,255,255,.13);transform-style:preserve-3d;will-change:transform}
body.premium-books-page .books-hero .stage-book img{display:block!important;width:100%;height:auto;object-fit:cover}
.stage-book-left{left:2%;width:43%;z-index:1;transform:translateY(28px) rotateY(16deg) rotateZ(-7deg);animation:bookFloatLeft 7s ease-in-out infinite}
.stage-book-center{width:46%;z-index:3;transform:translateY(-8px);animation:bookFloatCenter 6.2s ease-in-out infinite}
.stage-book-right{right:1%;width:43%;z-index:2;transform:translateY(30px) rotateY(-16deg) rotateZ(7deg);animation:bookFloatRight 7.4s ease-in-out infinite}
.stage-orbit{position:absolute;width:86%;aspect-ratio:1;border:1px solid rgba(54,184,255,.23);border-radius:50%;box-shadow:0 0 90px rgba(54,184,255,.16),inset 0 0 70px rgba(246,184,23,.08);z-index:-1;animation:orbitPulse 5s ease-in-out infinite}
@keyframes bookFloatLeft{0%,100%{transform:translateY(28px) rotateY(16deg) rotateZ(-7deg)}50%{transform:translateY(14px) rotateY(13deg) rotateZ(-6deg)}}
@keyframes bookFloatCenter{0%,100%{transform:translateY(-8px)}50%{transform:translateY(-24px)}}
@keyframes bookFloatRight{0%,100%{transform:translateY(30px) rotateY(-16deg) rotateZ(7deg)}50%{transform:translateY(12px) rotateY(-13deg) rotateZ(6deg)}}
@keyframes orbitPulse{0%,100%{opacity:.55;transform:scale(.96)}50%{opacity:1;transform:scale(1.03)}}

.books-signal{position:relative;z-index:6;margin-top:-2px;border-block:1px solid rgba(255,255,255,.08);background:linear-gradient(90deg,rgba(13,30,49,.95),rgba(6,13,23,.98),rgba(13,30,49,.95));box-shadow:0 25px 80px rgba(0,0,0,.25)}
.signal-grid{display:grid;grid-template-columns:repeat(3,1fr);min-height:118px}
.signal-grid>div{display:flex;flex-direction:column;justify-content:center;padding:24px 32px;border-right:1px solid rgba(255,255,255,.09)}
.signal-grid>div:last-child{border-right:0}
.signal-grid span{margin-bottom:7px;color:var(--books-blue-soft);font-size:11px;font-weight:900;letter-spacing:.17em;text-transform:uppercase}
.signal-grid strong{color:#f7f4eb;font-size:18px;line-height:1.25}

.author-reason{position:relative;background:radial-gradient(circle at 18% 25%,rgba(54,184,255,.11),transparent 30%),linear-gradient(180deg,#05080d,#080d15)}
.author-reason-grid{display:grid;grid-template-columns:minmax(340px,.78fr) minmax(0,1.22fr);gap:clamp(48px,7vw,104px);align-items:center}
.author-portrait-card{position:relative;overflow:hidden;min-height:610px;border:1px solid rgba(168,229,255,.26);border-radius:34px;background:#0c1420;box-shadow:0 34px 90px rgba(0,0,0,.52)}
.author-portrait-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 48%,rgba(2,8,15,.94) 100%);pointer-events:none}
.author-portrait-card img{width:100%;height:610px;object-fit:cover;object-position:center;filter:saturate(.91) contrast(1.03)}
.author-portrait-card>div{position:absolute;left:30px;right:30px;bottom:28px;z-index:2;display:flex;flex-direction:column;gap:7px}
.author-portrait-card span{color:var(--books-blue-soft);font-size:11px;font-weight:900;letter-spacing:.16em;text-transform:uppercase}
.author-portrait-card strong{color:#fff;font-size:30px}
.author-reason-copy{max-width:720px}
.author-reason-copy h2,.books-section-head h2,.topic-heading h2,.faq-intro h2{margin:0 0 28px;color:#f4f6f8;font-size:clamp(40px,5vw,68px);font-weight:900;line-height:1.02;letter-spacing:-.055em}
.author-reason-copy blockquote{margin:0 0 26px;padding:17px 0 17px 24px;border-left:3px solid var(--books-gold);color:var(--books-gold-soft);font-size:clamp(25px,3vw,38px);font-weight:900;line-height:1.1}
.author-reason-copy p{margin:0 0 20px;color:#b9c7d6;font-size:18px;line-height:1.75}
.author-reason-copy .reason-emphasis{margin-top:30px;padding:22px 24px;border:1px solid rgba(246,184,23,.24);border-radius:20px;background:rgba(246,184,23,.055);color:#eef4f9;font-weight:800}

.books-library{position:relative;background:radial-gradient(circle at 88% 9%,rgba(246,184,23,.08),transparent 28%),#060a10}
.books-section-head{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(300px,.8fr);gap:56px;align-items:end;margin-bottom:70px}
.books-section-head h2{margin-bottom:0}
.books-section-head>p{margin:0 0 6px;padding:24px;border:1px solid rgba(255,255,255,.11);border-radius:20px;background:rgba(255,255,255,.035);color:#b8c6d5;font-size:17px;line-height:1.65}

.flagship-book{display:grid;grid-template-columns:minmax(320px,.76fr) minmax(0,1.24fr);gap:clamp(50px,7vw,100px);align-items:center;margin-bottom:150px;padding:clamp(34px,5vw,70px);border:1px solid rgba(246,184,23,.28);border-radius:42px;background:radial-gradient(circle at 17% 30%,rgba(43,111,192,.22),transparent 34%),linear-gradient(145deg,#0b1527,#070b12 62%,#10100b);box-shadow:0 36px 100px rgba(0,0,0,.44),inset 0 0 0 1px rgba(255,255,255,.025)}
.flagship-cover,.manipulation-cover,.psychology-cover,.child-cover{position:relative;transform-style:preserve-3d;will-change:transform;transition:transform .22s ease-out,filter .3s ease}
.flagship-cover{max-width:410px;margin:auto}
.flagship-cover img,.manipulation-cover img,.psychology-cover img,.child-cover img{display:block;width:100%;height:auto;border-radius:5px;box-shadow:0 34px 70px rgba(0,0,0,.68),0 0 0 1px rgba(255,255,255,.15)}
.cover-glow{position:absolute;inset:10% -8% -7%;z-index:-1;border-radius:50%;background:radial-gradient(circle,rgba(54,184,255,.23),transparent 68%);filter:blur(25px);opacity:.75;pointer-events:none}
.book-ribbon{position:absolute;left:-18px;top:24px;z-index:5;padding:10px 18px;border-radius:999px;background:linear-gradient(135deg,#ffe37e,#e8a600);color:#07111f;font-size:11px;font-weight:900;letter-spacing:.12em;text-transform:uppercase;box-shadow:0 12px 30px rgba(0,0,0,.45)}
.ribbon-blue{background:linear-gradient(135deg,#bcecff,#28b9ff);color:#04101c}
.book-kicker{margin:0 0 14px!important;color:var(--books-blue-soft)!important;font-size:11px!important;font-weight:900!important;letter-spacing:.16em!important;text-transform:uppercase}
.flagship-copy h2{margin:0 0 8px;color:#fff;font-size:clamp(50px,6vw,84px);font-weight:900;line-height:.95;letter-spacing:-.06em}
.book-subtitle{margin:0 0 26px!important;color:var(--books-gold-soft)!important;font-size:clamp(20px,2.3vw,28px)!important;font-weight:800!important;line-height:1.25!important}
.flagship-copy>p:not(.book-kicker):not(.book-subtitle),.manipulation-copy>p:not(.book-kicker):not(.book-subtitle),.psychology-card>div:last-child>p:not(.book-kicker),.child-book>p:not(.book-kicker),.topic-heading>p:last-child,.faq-intro>p:last-child{color:#b9c7d5;font-size:17px;line-height:1.72}
.flagship-copy>p+p{margin-top:17px}
.book-points{display:grid;gap:11px;margin:27px 0 28px;list-style:none}
.book-points li{position:relative;padding-left:27px;color:#e2ebf3;font-weight:700;line-height:1.45}
.book-points li:before{content:"";position:absolute;left:0;top:.45em;width:10px;height:10px;border-radius:50%;background:var(--books-gold);box-shadow:0 0 18px rgba(246,184,23,.62)}
.book-data{display:flex;flex-wrap:wrap;gap:9px;margin:26px 0}
.book-data span,.child-book>span{padding:8px 11px;border:1px solid rgba(168,229,255,.18);border-radius:999px;background:rgba(54,184,255,.05);color:#bcd5e5;font-size:11px;font-weight:800}
.book-actions{display:flex;flex-wrap:wrap;align-items:center;gap:22px}
.text-link{color:var(--books-blue-soft);font-weight:800;border-bottom:1px solid rgba(168,229,255,.28);padding-bottom:4px}

.topic-heading{max-width:920px;margin:0 auto 58px;text-align:center}
.topic-heading .eyebrow{justify-content:center}
.topic-heading h2{font-size:clamp(40px,5.3vw,72px)}
.topic-heading>p:last-child{max-width:760px;margin:0 auto}
.manipulation-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;margin-bottom:150px}
.manipulation-card{display:grid;grid-template-columns:minmax(190px,.7fr) minmax(0,1.3fr);gap:32px;align-items:center;min-height:680px;padding:42px;border:1px solid rgba(246,184,23,.22);border-radius:34px;background:radial-gradient(circle at 12% 25%,rgba(28,124,181,.17),transparent 34%),linear-gradient(155deg,#0b121d,#080b10);box-shadow:0 28px 75px rgba(0,0,0,.38)}
.manipulation-cover{max-width:295px;margin:auto}
.manipulation-copy h3,.psychology-card h3,.child-book h3{margin:0 0 10px;color:#fff;font-size:clamp(30px,3.1vw,47px);font-weight:900;line-height:1.02;letter-spacing:-.05em}
.manipulation-copy .btn{margin-top:4px}

.psychology-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;margin-bottom:150px}
.psychology-card{display:grid;grid-template-columns:minmax(185px,.68fr) minmax(0,1.32fr);gap:34px;align-items:center;padding:38px;border:1px solid rgba(168,229,255,.18);border-radius:32px;background:linear-gradient(145deg,rgba(20,35,53,.92),rgba(7,11,17,.98));box-shadow:0 26px 72px rgba(0,0,0,.32)}
.psychology-cover{max-width:260px;margin:auto}
.psychology-card .btn{margin-top:3px}

.children-heading{margin-bottom:50px}
.children-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px}
.child-book{position:relative;overflow:hidden;padding:18px 18px 24px;border:1px solid rgba(255,255,255,.1);border-radius:25px;background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.022));box-shadow:0 22px 60px rgba(0,0,0,.31);transition:transform .3s ease,border-color .3s ease}
.child-book:hover{transform:translateY(-7px);border-color:rgba(246,184,23,.28)}
.child-cover{margin-bottom:23px}
.child-book h3{font-size:27px}
.child-book>p:not(.book-kicker){min-height:118px;font-size:14px;line-height:1.58}
.child-book>span{display:inline-flex;margin-top:16px;font-size:9px}
.child-book-link{display:flex;width:max-content;margin-top:17px;color:var(--books-gold-soft);font-size:12px;font-weight:900;letter-spacing:.02em;text-decoration:none;transition:color .2s ease,transform .2s ease}
.child-book-link:hover{color:#fff;transform:translateX(3px)}
.series-action{display:flex;justify-content:center;margin-top:46px}

.books-faq{background:radial-gradient(circle at 14% 14%,rgba(54,184,255,.09),transparent 32%),linear-gradient(180deg,#07101a,#05080d)}
.faq-grid{display:grid;grid-template-columns:minmax(300px,.8fr) minmax(0,1.2fr);gap:clamp(48px,7vw,100px);align-items:start}
.faq-intro{position:sticky;top:125px}
.faq-list{display:grid;gap:14px}
.faq-list details{border:1px solid rgba(255,255,255,.11);border-radius:20px;background:rgba(255,255,255,.035);overflow:hidden}
.faq-list summary{position:relative;padding:23px 58px 23px 24px;color:#eef4f8;font-size:17px;font-weight:850;line-height:1.4;cursor:pointer;list-style:none}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:after{content:"+";position:absolute;right:22px;top:50%;display:grid;place-items:center;width:28px;height:28px;border:1px solid rgba(168,229,255,.24);border-radius:50%;color:var(--books-blue-soft);transform:translateY(-50%);transition:transform .25s}
.faq-list details[open] summary:after{transform:translateY(-50%) rotate(45deg)}
.faq-list details p{padding:0 24px 24px;color:#b9c7d5;font-size:16px;line-height:1.7}
.books-final-cta{background:radial-gradient(circle at 50% 0%,rgba(54,184,255,.14),transparent 35%),radial-gradient(circle at 50% 100%,rgba(246,184,23,.12),transparent 35%),#05080d}
.books-final-cta .cta-inner{max-width:980px}
.books-final-cta .btns{justify-content:center}

.reveal{opacity:1;transform:none}
.reveal.reveal-pending{opacity:0;transform:translateY(34px);transition:opacity .75s cubic-bezier(.2,.75,.2,1),transform .75s cubic-bezier(.2,.75,.2,1)}
.reveal.reveal-pending.is-visible{opacity:1;transform:none}

@media (max-width:1180px){
  .books-hero-grid{grid-template-columns:minmax(0,1.08fr) minmax(330px,.78fr);gap:38px}
  .books-hero h1{font-size:clamp(50px,5.3vw,70px)}
  .cover-stage{min-height:520px}
  .manipulation-card,.psychology-card{grid-template-columns:1fr;align-content:start}
  .manipulation-cover,.psychology-cover{max-width:250px}
  .children-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .child-book>p:not(.book-kicker){min-height:86px}
}

@media (max-width:900px){
  .books-hero{padding:84px 0 72px;min-height:auto}
  .books-hero-grid{grid-template-columns:1fr}
  .books-hero-copy{text-align:center;margin:auto}
  .books-hero .eyebrow,.books-hero .btns,.hero-facts{justify-content:center}
  .books-hero .lead{margin-inline:auto}
  .cover-stage{min-height:520px;max-width:580px;width:100%;margin:15px auto 0}
  .signal-grid{grid-template-columns:1fr}
  .signal-grid>div{border-right:0;border-bottom:1px solid rgba(255,255,255,.09);text-align:center}
  .signal-grid>div:last-child{border-bottom:0}
  .author-reason-grid,.books-section-head,.flagship-book,.faq-grid{grid-template-columns:1fr}
  .author-portrait-card{min-height:520px;max-width:560px;margin:auto}
  .author-portrait-card img{height:520px}
  .books-section-head{gap:24px}
  .flagship-cover{max-width:340px}
  .faq-intro{position:static}
}

@media (max-width:720px){
  html{scroll-padding-top:82px}
  .books-hero{padding-top:68px!important;padding-bottom:62px!important;overflow:hidden!important}
  .books-hero h1{font-size:clamp(39px,11vw,54px)!important;line-height:1.01!important}
  body.premium-books-page .books-hero h1>span{margin-bottom:10px;font-size:.55em}
  .books-hero .lead{font-size:17px!important}
  .books-hero .btns{align-items:stretch}
  .books-hero .btn{width:100%!important}
  .hero-facts{display:grid;grid-template-columns:repeat(3,1fr);width:100%;gap:7px}
  .hero-facts span{display:flex;flex-direction:column;gap:3px;padding:10px 7px;text-align:center;border-radius:15px;font-size:9px}
  .cover-stage{min-height:400px;max-width:410px}
  .stage-book-left{left:-2%;width:42%}
  .stage-book-center{width:46%}
  .stage-book-right{right:-2%;width:42%}
  .stage-book{backface-visibility:hidden;transform-style:flat;contain:layout paint;will-change:transform}
  .stage-book img{aspect-ratio:760/1083}
  .stage-book-left{animation:bookFloatLeftMobile 18s cubic-bezier(.45,.05,.55,.95) infinite}
  .stage-book-center{animation:bookFloatCenterMobile 20s cubic-bezier(.45,.05,.55,.95) infinite}
  .stage-book-right{animation:bookFloatRightMobile 19s cubic-bezier(.45,.05,.55,.95) infinite}
  .stage-orbit{animation:mildOrbitMobile 18s ease-in-out infinite;will-change:opacity}
  .interactive-cover{transform:none!important;transition:filter .3s ease!important}
  .author-reason,.books-library,.books-faq{padding-top:72px!important;padding-bottom:72px!important}
  .author-portrait-card{min-height:430px;border-radius:26px}
  .author-portrait-card img{height:430px}
  .author-reason-copy h2,.books-section-head h2,.topic-heading h2,.faq-intro h2{font-size:clamp(34px,9.5vw,46px)!important}
  .author-reason-copy p{font-size:16px}
  .flagship-book{margin-bottom:105px;padding:28px 20px;border-radius:28px}
  .flagship-copy h2{font-size:clamp(43px,12vw,61px)}
  .topic-heading{margin-bottom:38px}
  .manipulation-grid,.psychology-grid{grid-template-columns:1fr;margin-bottom:105px}
  .manipulation-card,.psychology-card{min-height:0;padding:28px 20px;border-radius:26px}
  .manipulation-cover,.psychology-cover{max-width:250px}
  .children-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .child-book{padding:12px 12px 19px;border-radius:20px}
  .child-book h3{font-size:23px!important}
  .child-book>p:not(.book-kicker){min-height:0;font-size:13px!important}
  .child-book>span{font-size:8px}
  .faq-list summary{font-size:16px}
  .books-final-cta .btn{width:100%!important}
}

@keyframes bookFloatLeftMobile{0%,100%{transform:translate3d(0,22px,0) rotate(-5.5deg)}50%{transform:translate3d(0,18px,0) rotate(-5.5deg)}}
@keyframes bookFloatCenterMobile{0%,100%{transform:translate3d(0,-6px,0)}50%{transform:translate3d(0,-10px,0)}}
@keyframes bookFloatRightMobile{0%,100%{transform:translate3d(0,23px,0) rotate(5.5deg)}50%{transform:translate3d(0,19px,0) rotate(5.5deg)}}
@keyframes mildOrbitMobile{0%,100%{opacity:.62}50%{opacity:.82}}

@media (max-width:430px){
  .cover-stage{min-height:350px}
  .children-grid{grid-template-columns:1fr}
  .child-book{display:grid;grid-template-columns:125px 1fr;column-gap:16px;align-items:start}
  .child-cover{grid-row:1 / span 4;margin:0}
  .child-book .book-kicker,.child-book h3,.child-book>p:not(.book-kicker),.child-book>span,.child-book-link{grid-column:2;margin-left:0}
  .child-book>p:not(.book-kicker){font-size:13px!important}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto!important}
  .stage-book,.stage-orbit,.interactive-cover,.reveal{animation:none!important;transition:none!important;transform:none!important}
  .stage-book-left{left:2%;transform:rotate(-5deg)!important}
  .stage-book-right{right:2%;transform:rotate(5deg)!important}
  .stage-book-center{transform:none!important}
}