:root{
  --bg:#05070b;--panel:rgba(10,15,24,.82);--text:#f2f5f7;--muted:#a8b3bd;
  --blue:#70e7ff;--warm:#d7a66f;--orange:#ff713b;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,Arial,Helvetica,sans-serif;line-height:1.65}
.ambient{position:fixed;inset:0;z-index:-2;background:
radial-gradient(circle at 75% 15%,rgba(0,175,255,.16),transparent 35%),
radial-gradient(circle at 15% 85%,rgba(255,98,40,.12),transparent 40%),
linear-gradient(135deg,#020409,#0a111b 58%,#160c07)}
body:before{content:"";position:fixed;inset:0;z-index:-1;background:
linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px),
linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px);background-size:52px 52px}
.topbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 5vw;background:rgba(4,7,12,.84);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08)}
.brand{color:#e9eef2;text-decoration:none;font-size:.92rem;letter-spacing:.16em;text-transform:uppercase;font-weight:600;opacity:.82}
.menu{display:flex;gap:1rem;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.menu a{color:var(--muted);text-decoration:none;font-size:.9rem}.menu a:hover{color:#fff}
.menu-toggle{display:none;background:transparent;border:1px solid rgba(255,255,255,.15);color:#fff;padding:.4rem .7rem;border-radius:8px}
main{width:min(1200px,92vw);margin:0 auto 5rem}
.hero{min-height:68vh;display:grid;align-content:center;padding:5rem 0 3rem}
.hero h1{max-width:950px;font-size:clamp(3rem,8vw,6.5rem);line-height:.98;margin:.2rem 0 1rem;font-weight:720}
.hero .lead{max-width:740px;font-size:1.35rem;color:#d6e1e8}
.author-signature{font-family:Georgia,serif;font-size:1.05rem;letter-spacing:.12em;color:#b9c3ca;margin-top:2rem}
.eyebrow,.genre{font-size:.78rem;letter-spacing:.19em;text-transform:uppercase;color:var(--blue);font-weight:700}
.section{margin:3rem 0}.section-head h2{font-size:clamp(2rem,4vw,3.3rem);margin:.2rem 0 2rem}
.books-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem}
.book-card{background:var(--panel);border:1px solid rgba(255,255,255,.10);border-radius:22px;overflow:hidden;box-shadow:0 26px 70px rgba(0,0,0,.35);transition:.25s}
.book-card:hover{transform:translateY(-5px);border-color:rgba(255,255,255,.28)}
.book-card img{width:100%;aspect-ratio:9/13;object-fit:cover;display:block}
.book-copy{padding:1.3rem}.book-copy h3{font-size:1.45rem;line-height:1.2;margin:.3rem 0 .7rem}
.button{display:inline-block;padding:.8rem 1.05rem;border-radius:999px;background:var(--blue);color:#031018;text-decoration:none;font-weight:700;text-transform:uppercase;letter-spacing:.08em;font-size:.78rem;border:1px solid var(--blue)}
.button.warm{background:var(--warm);border-color:var(--warm);color:#1c0e05}.button.orange{background:var(--orange);border-color:var(--orange);color:#180602}
.button.ghost{background:transparent;color:#dce6ec;border-color:rgba(255,255,255,.25)}
.book-detail{min-height:78vh;display:grid;grid-template-columns:minmax(270px,460px) 1fr;gap:3.2rem;align-items:center;padding:4rem 0}
.detail-cover{width:100%;border-radius:14px;box-shadow:0 36px 90px rgba(0,0,0,.58)}
.detail-copy h1{font-size:clamp(2.8rem,6vw,5.4rem);line-height:1;margin:.2rem 0}
.detail-copy h2{font-size:1.5rem;letter-spacing:.16em;text-transform:uppercase;color:var(--blue);margin-top:.4rem}
.pullquote{font-size:1.28rem;color:#e8f8ff;border-left:3px solid var(--blue);padding-left:1rem;margin:1.5rem 0}
.warm-theme .eyebrow,.warm-theme .pullquote{color:#f0c899}.warm-theme .pullquote{border-color:var(--warm)}
.orange-theme .eyebrow,.orange-theme .pullquote{color:#ff9a70}.orange-theme .pullquote{border-color:var(--orange)}
.facts{margin:1.5rem 0;padding:1rem 1.2rem;background:rgba(255,255,255,.045);border-radius:14px}
.facts p{margin:.35rem 0}.actions{display:flex;gap:.7rem;flex-wrap:wrap}
.card{background:var(--panel);border:1px solid rgba(255,255,255,.10);border-radius:22px;padding:2rem;margin:3rem 0;box-shadow:0 26px 70px rgba(0,0,0,.35)}
.card h1{font-size:clamp(2.5rem,5vw,4.5rem);margin:.2rem 0 1rem}
.card h2{font-size:1.55rem}.warm-card{border-color:rgba(215,166,111,.35)}
.author-card,.contact-card{max-width:820px;margin:5rem auto}.timeline article{padding:1rem 0;border-bottom:1px solid rgba(255,255,255,.08)}
.footer{text-align:center;color:#98a7b1;padding:3rem 1rem}.small{font-size:.85rem;color:#7f8d96}
@media(max-width:980px){.books-grid{grid-template-columns:1fr 1fr}.book-detail{grid-template-columns:1fr}.detail-cover{max-width:480px;justify-self:center}}
@media(max-width:700px){.menu-toggle{display:block}.menu{display:none;width:100%;padding-top:.8rem;flex-direction:column;align-items:flex-start}.menu.open{display:flex}.topbar{flex-wrap:wrap}.books-grid{grid-template-columns:1fr}.hero h1{font-size:3rem}}