:root{--bg:#02050a;--bg2:#07111f;--ink:#f4f7fb;--muted:#a8b4c4;--dim:#657386;--line:rgba(195,218,255,.18);--blue:#7dd3fc;--blue2:#1e66ff;--steel:#c8d3df;--panel:rgba(9,18,31,.72);--panel2:rgba(13,31,54,.58);--danger:#ff6b6b;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 72% 12%,rgba(42,122,255,.22),transparent 34%),radial-gradient(circle at 18% 24%,rgba(125,211,252,.14),transparent 26%),linear-gradient(180deg,#02050a 0%,#050b14 38%,#02050a 100%);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.55;overflow-x:hidden}body:before{content:"";position:fixed;inset:0;background-image:linear-gradient(rgba(125,211,252,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(125,211,252,.04) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to bottom,black,transparent 85%);pointer-events:none;z-index:-2}body:after{content:"";position:fixed;inset:0;background:linear-gradient(115deg,rgba(255,255,255,.04),transparent 18%,transparent 75%,rgba(125,211,252,.05));pointer-events:none;z-index:-1}.nav{position:fixed;top:0;left:0;right:0;z-index:50;backdrop-filter:blur(18px);background:linear-gradient(180deg,rgba(2,5,10,.88),rgba(2,5,10,.52));border-bottom:1px solid rgba(255,255,255,.08)}.nav-inner{max-width:var(--max);margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:18px 22px}.brand{font-weight:800;letter-spacing:.16em;text-transform:uppercase;font-size:12px;color:var(--ink);text-decoration:none}.nav a{color:var(--muted);text-decoration:none;font-size:12px;text-transform:uppercase;letter-spacing:.12em;font-weight:700;margin-left:22px}.nav a:hover{color:var(--blue)}.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}.hero{min-height:100vh;display:grid;align-items:center;padding:116px 0 70px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.55fr);gap:86px;align-items:center}.hero-grid>div:first-child{position:relative;z-index:2;max-width:760px}.hero-grid>div:last-child{position:relative;z-index:1}.eyebrow{display:inline-flex;gap:10px;align-items:center;color:var(--blue);font-size:12px;text-transform:uppercase;letter-spacing:.18em;font-weight:800}.eyebrow:before{content:"";width:38px;height:1px;background:var(--blue)}h1{font-size:clamp(46px,7.2vw,92px);line-height:.88;margin:20px 0 22px;text-transform:uppercase;letter-spacing:-.055em;font-weight:900;text-wrap:balance}.split{display:block;color:transparent;-webkit-text-stroke:1px rgba(244,247,251,.92);text-shadow:0 0 34px rgba(125,211,252,.18)}.subtitle{font-size:clamp(20px,2.1vw,32px);line-height:1.12;color:var(--steel);max-width:780px;text-wrap:balance}.argument{font-size:18px;color:var(--muted);max-width:680px}.actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:14px 19px;border:1px solid rgba(240,247,255,.28);border-radius:999px;color:var(--ink);text-decoration:none;text-transform:uppercase;letter-spacing:.12em;font-size:12px;font-weight:800;background:rgba(240,247,255,.07)}.btn.primary{background:linear-gradient(135deg,#f4f7fb,#9adfff 42%,#3977ff);color:#02050a;border:0;box-shadow:0 16px 60px rgba(30,102,255,.32)}.book-stage{position:relative;min-height:560px;display:grid;place-items:center}.book-stage:before{content:"";position:absolute;width:118%;aspect-ratio:1;border-radius:50%;background:radial-gradient(circle,rgba(125,211,252,.28),transparent 58%);filter:blur(12px)}.cover{position:relative;width:min(330px,76vw);filter:drop-shadow(0 34px 70px rgba(0,0,0,.75));transform:perspective(900px) rotateY(-5deg) rotateX(2deg)}.cover img{width:100%;display:block;border-radius:8px}.cover:after{content:"";position:absolute;inset:0;border-radius:8px;background:linear-gradient(110deg,rgba(255,255,255,.26),transparent 18%,transparent 62%,rgba(255,255,255,.11));mix-blend-mode:screen;pointer-events:none}.section{padding:90px 0;border-top:1px solid rgba(255,255,255,.08)}.section-head{display:flex;justify-content:space-between;gap:28px;align-items:end;margin-bottom:34px}.section h2{font-size:clamp(34px,5vw,68px);line-height:.92;margin:0;text-transform:uppercase;letter-spacing:-.045em;text-wrap:balance}.section p.lead{color:var(--muted);font-size:18px;max-width:560px;margin:0}.parts{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.part,.article-card,.chapter-card{background:linear-gradient(180deg,var(--panel),rgba(7,17,31,.48));border:1px solid var(--line);border-radius:22px;padding:24px;position:relative;overflow:hidden}.part:before,.article-card:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 0%,rgba(125,211,252,.17),transparent 32%);pointer-events:none}.num{font-family:ui-monospace,Menlo,monospace;color:var(--blue);font-size:12px;letter-spacing:.18em;text-transform:uppercase}.part h3,.article-card h3,.chapter-card h3{font-size:21px;line-height:1.05;margin:14px 0 12px}.part p,.article-card p,.chapter-card p{color:var(--muted);font-size:14px;margin:0}.chapters{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.chapter-card{padding:18px;border-radius:16px}.chapter-card h3{font-size:16px;margin:8px 0}.articles-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.article-card{min-height:260px;display:flex;flex-direction:column}.article-card a{color:var(--ink);text-decoration:none}.article-card .read{margin-top:auto;color:var(--blue);font-size:12px;letter-spacing:.14em;text-transform:uppercase;font-weight:800}.quote{padding:56px;border-radius:30px;background:linear-gradient(135deg,rgba(125,211,252,.14),rgba(255,255,255,.04));border:1px solid var(--line);font-size:clamp(28px,4vw,54px);line-height:1.02;font-weight:850;letter-spacing:-.045em;text-wrap:balance}.cta{display:grid;grid-template-columns:1fr .8fr;gap:30px;align-items:center;padding:42px;border-radius:34px;background:linear-gradient(135deg,rgba(244,247,251,.1),rgba(30,102,255,.13));border:1px solid rgba(244,247,251,.18)}.form{display:flex;gap:10px}.form input{flex:1;min-height:52px;border-radius:999px;border:1px solid var(--line);background:rgba(2,5,10,.74);color:var(--ink);padding:0 18px;font:inherit}.form button{cursor:pointer}.note{font-size:12px;color:var(--dim);margin-top:10px}.footer{padding:40px 0 70px;color:var(--dim);font-size:13px}.article-layout{padding:130px 0 80px;max-width:860px;margin:0 auto}.article-layout h1{font-size:clamp(42px,7vw,82px);letter-spacing:-.06em}.article-body{font-size:19px;color:#d6dee8}.article-body p{margin:0 0 22px}.back{color:var(--blue);text-decoration:none;text-transform:uppercase;letter-spacing:.14em;font-size:12px;font-weight:800}@media(max-width:900px){.hero-grid,.cta{grid-template-columns:1fr}.parts,.articles-grid{grid-template-columns:1fr 1fr}.chapters{grid-template-columns:1fr}.book-stage{min-height:auto}.nav .links{display:none}}@media(max-width:620px){.parts,.articles-grid{grid-template-columns:1fr}.section-head{display:block}.hero{padding-top:94px}.quote{padding:30px}.form{display:block}.form input,.form button{width:100%;margin-bottom:10px}.cover{width:min(310px,86vw)}}

.article-body h2{font-size:clamp(28px,3vw,42px);line-height:1.02;margin:42px 0 16px;text-transform:uppercase;letter-spacing:-.035em;color:var(--ink)}.article-body h3{font-size:24px;margin:32px 0 12px;color:var(--ink)}.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}.article-body strong{color:var(--ink)}.article-body em{color:var(--steel)}.region-pill{display:inline-flex;margin:12px 0 10px;padding:8px 12px;border:1px solid var(--line);border-radius:999px;color:var(--blue);text-transform:uppercase;letter-spacing:.14em;font-size:12px;font-weight:800}.reference-list{margin-top:34px;padding:22px;border:1px solid var(--line);border-radius:22px;background:rgba(9,18,31,.55)}.reference-list summary{cursor:pointer;color:var(--blue);font-weight:800;text-transform:uppercase;letter-spacing:.12em;font-size:12px}.reference-list .article-body{font-size:15px;margin-top:18px}.article-variant-nav{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0}.article-variant-nav a{font-size:12px}

/* Mobile hardening: tighter hero, full-width tap targets, and no horizontal overflow. */
@media(max-width:760px){
  .wrap{padding-left:18px;padding-right:18px}
  .nav-inner{padding:14px 18px}
  .brand{font-size:11px;letter-spacing:.11em;max-width:230px;line-height:1.2}
  .hero{min-height:auto;padding:96px 0 44px}
  .hero-grid{gap:30px}
  h1{font-size:clamp(32px,9.8vw,40px);line-height:.95;letter-spacing:-.04em;overflow-wrap:normal;word-break:normal}
  .subtitle{font-size:clamp(19px,6vw,25px);line-height:1.16}
  .argument,.section p.lead{font-size:16px}
  .actions{display:grid;grid-template-columns:1fr;gap:10px;margin-top:24px}
  .btn{width:100%;min-height:50px;padding:13px 16px;text-align:center;white-space:normal;line-height:1.2}
  .book-stage{order:2;min-height:0;margin-top:4px}
  .book-stage:before{width:96%;filter:blur(18px)}
  .cover{width:min(250px,70vw);transform:none}
  .section{padding:58px 0}
  .section h2{font-size:clamp(31px,10vw,46px);line-height:.98;overflow-wrap:anywhere}
  .quote{font-size:clamp(25px,8vw,39px);padding:26px;border-radius:24px}
  .cta{padding:26px 20px;border-radius:26px;gap:22px}
  .form{display:grid;grid-template-columns:1fr;gap:10px}
  .form input,.form button{width:100%;margin:0;min-width:0}
  .note,.note a{overflow-wrap:anywhere;word-break:break-word}
  .article-card,.part,.chapter-card{padding:20px;border-radius:20px}
  .num{letter-spacing:.12em;line-height:1.25}
}
@media(max-width:390px){
  .wrap{padding-left:15px;padding-right:15px}
  .brand{max-width:205px}
  h1{font-size:clamp(31px,9.6vw,38px)}
  .cover{width:min(230px,68vw)}
  .cta{padding:22px 16px}
}