:root{--bg:#0f1724;--bg2:#141f31;--card:#19263a;--text:#f6f3ea;--muted:#b8c2d1;--gold:#d7b368;--blue:#5cadd1;--line:rgba(255,255,255,.12);--shadow:0 18px 40px rgba(0,0,0,.28)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:radial-gradient(circle at top left,rgba(92,173,209,.16),transparent 35%),linear-gradient(180deg,#0d1420,var(--bg));color:var(--text);line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1180px,calc(100% - 36px));margin:0 auto}.eyebrow{color:var(--gold);text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;font-weight:800}.section{padding:76px 0}.section-title{font-size:clamp(2rem,4vw,3.1rem);margin:0 0 14px;line-height:1.08}.section-lead{color:var(--muted);max-width:820px;margin:0 0 34px;font-size:1.05rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 18px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.06);color:var(--text);font-weight:800;transition:.18s}.btn:hover{transform:translateY(-2px);border-color:var(--gold);background:rgba(215,179,104,.10)}.btn.primary{background:linear-gradient(135deg,var(--gold),#f0d188);color:#111827;border:none}.btn.blue{background:linear-gradient(135deg,var(--blue),#9bdcf4);color:#08111c;border:none}.badge{display:inline-flex;padding:5px 10px;border-radius:999px;background:rgba(92,173,209,.12);border:1px solid rgba(92,173,209,.35);color:#bfeaff;font-size:.78rem;font-weight:800}hr.soft{border:0;border-top:1px solid var(--line);margin:32px 0}.site-header{position:sticky;top:0;z-index:20;background:rgba(13,20,32,.88);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav{height:72px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;flex-direction:column;line-height:1.15;font-weight:900}.brand small{color:var(--muted);font-weight:600}.nav-links{display:flex;gap:18px;align-items:center}.nav-links a{color:var(--muted);font-weight:700}.nav-links a:hover{color:var(--gold)}.mobile-note{display:none}.hero{padding:92px 0 72px}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}.hero h1{font-size:clamp(2.7rem,6vw,5.4rem);line-height:.96;margin:14px 0 20px;letter-spacing:-.04em}.hero p{color:var(--muted);font-size:1.15rem;max-width:720px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.hero-card{background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.035));border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:var(--shadow)}.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.stat{background:rgba(255,255,255,.055);border:1px solid var(--line);border-radius:20px;padding:18px}.stat strong{display:block;font-size:2rem;color:var(--gold);line-height:1}.stat span{color:var(--muted);font-size:.92rem}.featured-wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.filters{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 28px}.filter-btn{cursor:pointer;border:1px solid var(--line);color:var(--text);background:rgba(255,255,255,.05);padding:10px 14px;border-radius:999px;font-weight:800}.filter-btn.active{background:var(--gold);color:#111827;border-color:var(--gold)}.search-box{width:100%;max-width:520px;margin-bottom:14px}.search-box input{width:100%;padding:14px 16px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.08);color:var(--text);font-size:1rem}.book-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}.book-card{overflow:hidden;background:var(--card);border:1px solid var(--line);border-radius:22px;box-shadow:0 14px 34px rgba(0,0,0,.20);display:flex;flex-direction:column;min-height:100%}.book-cover{aspect-ratio:2/3;background:#101827;overflow:hidden}.book-cover img{width:100%;height:100%;object-fit:cover}.book-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}.book-body h3{margin:0;line-height:1.18;font-size:1.06rem}.book-body p{margin:0;color:var(--muted);font-size:.93rem}.book-actions{display:grid;gap:8px;margin-top:auto}.book-actions .btn{width:100%;padding:10px 12px}.ecosystem{background:rgba(255,255,255,.035);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.link-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.link-card{background:var(--card);border:1px solid var(--line);padding:22px;border-radius:22px}.link-card h3{margin:0 0 8px}.link-card p{color:var(--muted);margin:0 0 18px}.book-detail{padding:70px 0}.detail-grid{display:grid;grid-template-columns:360px 1fr;gap:46px;align-items:start}.detail-cover{border-radius:24px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}.detail-content h1{font-size:clamp(2.2rem,5vw,4.2rem);line-height:1;margin:12px 0 18px}.detail-content p{color:var(--muted);font-size:1.08rem}.detail-meta{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}.back-link{display:inline-flex;margin-bottom:24px;color:var(--gold);font-weight:800}.footer{padding:38px 0;border-top:1px solid var(--line);color:var(--muted)}.footer-grid{display:flex;justify-content:space-between;gap:20px}.footer a{color:var(--gold)}@media(max-width:980px){.hero-grid,.detail-grid{grid-template-columns:1fr}.book-grid,.featured-wrap,.link-grid{grid-template-columns:repeat(2,1fr)}.nav-links{display:none}.mobile-note{display:block;color:var(--muted);font-size:.85rem}}@media(max-width:620px){.book-grid,.featured-wrap,.link-grid,.stat-grid{grid-template-columns:1fr}.footer-grid{flex-direction:column}.section{padding:54px 0}}