:root{
  --navy:#061827; --navy2:#0b2235; --ivory:#f5eedf; --ivory2:#fffaf0;
  --gold:#d39a33; --gold2:#b77c22; --muted:#c7bca9; --ink:#14202b;
  --line:rgba(211,154,51,.42); --shadow:0 24px 60px rgba(0,0,0,.32);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,Arial,sans-serif;background:var(--navy);color:var(--ivory);line-height:1.55}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,a.btn{font:inherit}
.container{width:min(1180px,calc(100% - 36px));margin:auto}
.serif,h1,h2,h3{font-family:Georgia,'Times New Roman',serif}
.eyebrow{font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);font-weight:800}
.muted{color:var(--muted)}
.gold{color:var(--gold)}
.section{padding:82px 0}
.section.ivory{background:var(--ivory);color:var(--ink)}
.section.soft{background:#0a2030}
.section-title{font-size:clamp(2rem,4vw,3.6rem);line-height:1.05;margin:.35rem 0 1rem}
.section-lead{font-size:1.08rem;max-width:760px;color:var(--muted)}
.ivory .section-lead{color:#5b5a55}
.rule{height:1px;background:linear-gradient(90deg,transparent,var(--gold),transparent);margin:26px 0}
header{position:sticky;top:0;z-index:30;background:rgba(6,24,39,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(211,154,51,.16)}
.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-family:Georgia,serif;font-weight:700;letter-spacing:.02em}
.brand img{width:48px;height:48px;object-fit:contain}
.navlinks{display:flex;gap:24px;align-items:center;font-size:.83rem;font-weight:700;letter-spacing:.04em}
.navlinks a:hover{color:var(--gold)}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;background:var(--gold);color:var(--navy);font-weight:900;border-radius:4px;letter-spacing:.03em;border:1px solid var(--gold);transition:.2s}
.btn:hover{transform:translateY(-1px);filter:brightness(1.06)}
.btn.ghost{background:transparent;color:var(--ivory);border-color:var(--line)}
.ivory .btn.ghost{color:var(--ink)}
.mobile-toggle{display:none;background:none;border:0;color:var(--ivory);font-size:1.7rem}
.hero{padding:80px 0 70px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:.88fr 1.12fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(3rem,6vw,6rem);line-height:.93;margin:.5rem 0 1.4rem;letter-spacing:-.035em}
.hero p{font-size:1.12rem;max-width:620px;color:#e4dccd}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.book-stage{display:flex;align-items:flex-end;justify-content:center;gap:16px;min-height:520px;padding:24px}
.book3d{position:relative;display:inline-block;filter:drop-shadow(0 22px 22px rgba(0,0,0,.38));transform:perspective(1100px) rotateY(-8deg);transform-origin:center}
.book3d::before{content:"";position:absolute;left:-10px;top:4px;width:10px;height:calc(100% - 8px);background:linear-gradient(90deg,#44382c,#d9c8a7);transform:skewY(-18deg);transform-origin:right;z-index:-1}
.book3d img{height:var(--h,350px);width:auto;border-radius:1px;box-shadow:0 0 0 1px rgba(255,255,255,.08)}
.book3d:nth-child(2){transform:perspective(1100px) rotateY(-4deg) translateY(-14px)}
.book3d:nth-child(3){transform:perspective(1100px) rotateY(4deg) translateY(-6px)}
.book3d:nth-child(4){transform:perspective(1100px) rotateY(8deg)}
.situation-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:36px}
.situation{background:#fffaf0;border:1px solid #e0d3be;border-radius:8px;padding:24px 20px;min-height:180px;color:var(--ink);display:flex;flex-direction:column;justify-content:space-between}
.situation .num{font-family:Georgia,serif;color:var(--gold2);font-size:1.45rem}
.situation h3{font-size:1.15rem;margin:14px 0 8px}
.situation p{font-size:.9rem;color:#5d5a54;margin:0 0 18px}
.situation a{color:var(--gold2);font-weight:900;font-size:.83rem}
.series-banner{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;background:var(--navy2);border:1px solid var(--line);border-radius:10px;padding:48px}
.series-banner .books{display:flex;justify-content:center;gap:12px;align-items:flex-end}
.series-banner .book3d img{height:240px}
.feature-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:36px}
.feature{border:1px solid var(--line);background:rgba(255,255,255,.025);padding:24px;border-radius:8px}
.feature h3{color:var(--gold);font-size:1.2rem;margin:.4rem 0}
.aplus-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.aplus-card{background:var(--navy2);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.aplus-card img{aspect-ratio:1/1;object-fit:cover;width:100%}
.aplus-card .copy{padding:18px}
.about-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:56px;align-items:center}
.portrait{border-radius:14px;box-shadow:var(--shadow);border:1px solid #d9cbb5}
.quote{font-family:Georgia,serif;font-size:clamp(1.7rem,3vw,2.7rem);line-height:1.14;color:var(--gold2);margin:18px 0}
.footer{padding:48px 0 30px;border-top:1px solid rgba(211,154,51,.2);background:#04131f}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:30px}
.footer small{color:#8e9aa4}
.footer a{color:#d9d1c4}
.footer a:hover{color:var(--gold)}
.series-hero{padding:74px 0 54px}
.series-hero-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:center}
.series-hero h1{font-size:clamp(3rem,6vw,5.5rem);line-height:.94;margin:.4rem 0 1.1rem}
.series-books{display:flex;gap:15px;align-items:flex-end;justify-content:center}
.series-books .book3d img{height:330px}
.series-books.six{gap:8px}
.series-books.six .book3d img{height:255px}
.series-books.three .book3d img{height:370px}
.benefit-row{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.benefit-row.five{grid-template-columns:repeat(5,1fr)}
.benefit-item{text-align:center;padding:20px 10px;border-top:1px solid var(--line)}
.benefit-icon{width:46px;height:46px;border:1px solid var(--gold);border-radius:50%;display:grid;place-items:center;margin:0 auto 12px;color:var(--gold);font-weight:900}
.benefit-item strong{display:block;font-size:.78rem;letter-spacing:.04em}
.benefit-item span{display:block;font-size:.82rem;color:var(--muted);margin-top:5px}
.chooser{display:grid;gap:12px;margin-top:32px}
.choice{display:grid;grid-template-columns:62px 74px 1.1fr .9fr;border:1px solid var(--line);background:var(--navy2);border-radius:6px;overflow:hidden;min-height:108px}
.choice-num{background:var(--gold);color:var(--navy);display:grid;place-items:center;font-family:Georgia,serif;font-size:1.35rem;font-weight:700}
.choice-cover{padding:9px;display:grid;place-items:center}
.choice-cover img{max-height:90px;width:auto}
.choice-copy{padding:18px 18px 14px}
.choice-copy h3{font-size:1.1rem;margin:0 0 8px}
.choice-copy p{font-size:.9rem;margin:3px 0;color:#e7dfd0}
.choice-copy b{color:var(--gold);font-size:.76rem;letter-spacing:.04em}
.choice-focus{padding:18px;border-left:1px solid var(--line)}
.choice-focus b{color:var(--gold);font-size:.76rem;letter-spacing:.04em}
.choice-focus p{font-size:.9rem;margin:6px 0;color:#e7dfd0}
.book-page-hero{padding:72px 0 56px}
.book-page-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:64px;align-items:center}
.single-book{text-align:center}
.single-book .book3d img{height:530px}
.book-page-hero h1{font-size:clamp(2.8rem,5.6vw,5.2rem);line-height:.95;margin:.45rem 0 1rem}
.subtitle{font-size:1.1rem;color:#e5dccd;max-width:700px}
.fit-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:28px}
.fit{border:1px solid var(--line);background:rgba(255,255,255,.025);padding:16px 18px;border-radius:6px;font-size:.94rem}
.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.path-step{border:1px solid #d8c7aa;background:#fffaf0;color:var(--ink);border-radius:10px;overflow:hidden}
.path-step img{width:100%;aspect-ratio:1/1;object-fit:cover}
.path-step .copy{padding:20px}
.path-step h3{font-size:1.35rem;margin:0 0 8px;color:var(--gold2)}
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{display:grid;grid-template-columns:110px 1fr;gap:18px;align-items:center;border:1px solid var(--line);background:var(--navy2);padding:18px;border-radius:8px}
.related-card img{max-height:160px;width:auto}
.related-card h3{font-size:1.12rem;margin:.2rem 0}
.related-card a{color:var(--gold);font-weight:800;font-size:.85rem}
.notice{background:#fff6e6;border-left:4px solid var(--gold);padding:14px 18px;color:#3f3a31;font-size:.9rem}
@media(max-width:960px){
  .navlinks{display:none}.mobile-toggle{display:block}
  .navlinks.open{display:flex;position:absolute;left:0;right:0;top:76px;background:var(--navy);padding:22px;flex-direction:column;border-bottom:1px solid var(--line)}
  .hero-grid,.series-hero-grid,.book-page-grid,.series-banner,.about-grid{grid-template-columns:1fr}
  .book-stage{min-height:auto}.book3d img{height:290px!important}
  .situation-grid{grid-template-columns:repeat(2,1fr)}
  .feature-strip,.aplus-grid,.path-grid,.related{grid-template-columns:1fr}
  .benefit-row,.benefit-row.five{grid-template-columns:repeat(2,1fr)}
  .series-books{flex-wrap:wrap}.series-books.six .book3d img{height:220px!important}
  .choice{grid-template-columns:48px 64px 1fr}.choice-focus{grid-column:3;border-left:0;border-top:1px solid var(--line)}
}
@media(max-width:640px){
  .container{width:min(100% - 24px,1180px)} .section{padding:58px 0}.hero{padding-top:48px}
  .hero h1,.series-hero h1,.book-page-hero h1{font-size:clamp(2.55rem,14vw,4.1rem)}
  .book-stage{gap:8px;padding:8px}.book-stage .book3d img{height:210px!important}
  .book-stage .book3d:nth-child(n+4){display:none}
  .situation-grid{grid-template-columns:1fr}
  .series-banner{padding:26px 20px}.series-banner .books .book3d img{height:190px!important}
  .benefit-row,.benefit-row.five{grid-template-columns:1fr 1fr}
  .choice{grid-template-columns:44px 58px 1fr}.choice-copy{padding:14px 12px}.choice-focus{grid-column:3;padding:12px}
  .fit-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .single-book .book3d img{height:390px!important}
}