:root{
  --brand-blue:#3fa9f5;
  --brand-blue-deep:#197dbd;
  --brand-green:#8cc63f;
  --brand-green-deep:#5f9228;
  --charcoal:#4d4d4d;
  --charcoal-deep:#303030;
  --paper:#f7f9fb;
  --muted:#6c757d;
  --line:#dbe3e8;
  --white:#fff;
  --soft-blue:#eaf6fe;
  --soft-green:#f1f8e7;
  --shadow:0 18px 50px rgba(48,48,48,.12)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--paper);color:var(--charcoal-deep);line-height:1.6}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(63,169,245,.35);outline-offset:3px}
img{max-width:100%;display:block}
.wrap{width:min(1180px,calc(100% - 40px));margin:auto}
.topbar{background:var(--charcoal-deep);color:#eef4f7;font-size:.85rem;padding:7px 0;border-bottom:3px solid var(--brand-green)}
.topbar .wrap{display:flex;justify-content:space-between;gap:20px}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid rgba(77,77,77,.12)}
.header-row{height:86px;display:flex;align-items:center;justify-content:space-between;gap:26px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-logo{width:54px;height:54px;object-fit:contain;flex:0 0 auto}
.brand-wordmark{display:flex;flex-direction:column;line-height:1.02}
.brand-title{font-weight:900;font-size:1.18rem;letter-spacing:-.025em;color:var(--charcoal-deep)}
.brand-title .creative{color:var(--brand-blue-deep)}
.brand-title .media{color:var(--brand-green-deep)}
.brand-sub{display:block;margin-top:3px;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--charcoal);font-weight:800}
.nav{display:flex;align-items:center;gap:25px;font-size:.93rem;font-weight:750}
.nav a{position:relative}
.nav a:hover{color:var(--brand-blue-deep)}
.nav a:hover::after{content:"";position:absolute;left:0;right:0;bottom:-8px;height:3px;border-radius:3px;background:var(--brand-green)}
.button{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:999px;padding:12px 20px;font-weight:800;cursor:pointer;background:var(--brand-blue-deep);color:#fff;box-shadow:0 8px 22px rgba(25,125,189,.2);transition:.2s}
.button:hover{transform:translateY(-1px);background:#146da7}
.button.secondary{background:white;color:var(--charcoal-deep);border:1px solid var(--brand-blue);box-shadow:none}
.button.secondary:hover{background:var(--soft-blue)}
.hero{padding:88px 0 76px;overflow:hidden;background:radial-gradient(circle at 84% 20%,rgba(140,198,63,.16),transparent 30%),linear-gradient(180deg,#fff 0%,#f6fbfe 100%)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:72px;align-items:center}
.eyebrow{text-transform:uppercase;letter-spacing:.18em;font-size:.76rem;font-weight:900;color:var(--brand-green-deep)}
h1{font-family:Georgia,"Times New Roman",serif;font-size:clamp(3.2rem,7vw,6.8rem);line-height:.9;letter-spacing:-.055em;margin:12px 0 28px;color:var(--charcoal-deep)}
.hero p{font-size:1.14rem;color:var(--muted);max-width:660px}
.hero-actions{display:flex;gap:12px;margin-top:32px}
.hero-art{position:relative;height:480px}
.book-shape{position:absolute;width:235px;height:335px;border-radius:8px 18px 18px 8px;box-shadow:0 30px 60px rgba(48,48,48,.2);padding:28px;color:white;font-family:Georgia,serif}
.book-shape:nth-child(1){background:var(--brand-blue-deep);transform:rotate(-9deg);left:20px;top:55px}
.book-shape:nth-child(2){background:var(--brand-green);color:var(--charcoal-deep);transform:rotate(8deg);right:15px;top:12px}
.book-shape:nth-child(3){background:var(--charcoal);transform:rotate(1deg);left:130px;top:130px}
.section{padding:74px 0}
.section.white{background:white}
.section-title{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
.section h2{font-family:Georgia,serif;font-size:clamp(2.1rem,4vw,3.8rem);line-height:1;margin:8px 0;color:var(--charcoal-deep)}
.section-title p{max-width:520px;color:var(--muted)}
.catalog-controls{display:grid;grid-template-columns:1fr 240px 190px;gap:12px;margin:0 0 28px}
.input,.select,textarea{width:100%;border:1px solid var(--line);background:white;border-radius:14px;padding:13px 15px;font:inherit;color:var(--charcoal-deep)}
.input:focus,.select:focus,textarea:focus{border-color:var(--brand-blue)}
.book-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.book-card{background:white;border:1px solid rgba(77,77,77,.09);border-radius:20px;overflow:hidden;box-shadow:0 8px 28px rgba(48,48,48,.07);transition:.2s}
.book-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.cover-wrap{aspect-ratio:2/3;background:linear-gradient(145deg,var(--soft-blue),#fbfcfd);display:grid;place-items:center;overflow:hidden}
.cover-wrap img{width:100%;height:100%;object-fit:cover}
.cover-fallback{font-family:Georgia,serif;font-size:1.4rem;text-align:center;padding:25px;color:var(--charcoal-deep)}
.book-copy{padding:19px}
.tag{display:inline-flex;border-radius:999px;background:var(--soft-green);color:var(--brand-green-deep);padding:5px 9px;font-size:.7rem;font-weight:900;text-transform:uppercase;letter-spacing:.07em}
.book-copy h3{font-family:Georgia,serif;font-size:1.3rem;line-height:1.1;margin:12px 0 7px;color:var(--charcoal-deep)}
.book-copy p{font-size:.87rem;color:var(--muted);margin:0}
.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.category-card{padding:28px;border-radius:22px;min-height:185px;display:flex;flex-direction:column;justify-content:end;box-shadow:0 10px 30px rgba(48,48,48,.08);transition:.2s}
.category-card:hover{transform:translateY(-3px)}
.category-card:nth-child(3n+1){background:var(--brand-blue-deep);color:white}
.category-card:nth-child(3n+2){background:var(--brand-green);color:var(--charcoal-deep)}
.category-card:nth-child(3n){background:var(--charcoal);color:white}
.category-card h3{font-family:Georgia,serif;font-size:1.8rem;margin:0}
.footer{background:var(--charcoal-deep);color:#e7edf0;padding:60px 0 30px;margin-top:60px;border-top:5px solid var(--brand-green)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:55px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-logo{width:58px;height:58px}
.footer-brand .brand-title{color:white}
.footer-brand .brand-sub{color:#c9d2d6}
.footer h4{color:white}
.footer a{display:block;color:#c9d2d6;margin:8px 0}
.footer a:hover{color:var(--brand-blue)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:45px;padding-top:22px;font-size:.82rem;color:#aebcc2}
.detail{padding:72px 0}
.detail-grid{display:grid;grid-template-columns:360px 1fr;gap:65px}
.detail-cover{border-radius:18px;overflow:hidden;box-shadow:var(--shadow);background:var(--soft-blue);min-height:500px;display:grid;place-items:center}
.detail h1{font-size:clamp(2.8rem,5vw,5rem);margin-top:8px}
.meta{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}
.retail{display:flex;gap:10px;margin-top:26px}
.admin-shell{display:grid;grid-template-columns:250px 1fr;min-height:100vh;background:#f5f8fa}
.admin-nav{background:var(--charcoal-deep);color:white;padding:26px 22px;border-top:5px solid var(--brand-green)}
.admin-brand{display:flex;align-items:center;gap:10px;margin-bottom:24px;padding-bottom:20px;border-bottom:1px solid rgba(255,255,255,.12)}
.admin-brand img{width:48px;height:48px}
.admin-brand strong{display:block;font-size:1rem}
.admin-brand small{display:block;color:#c8d2d6;letter-spacing:.08em;text-transform:uppercase}
.admin-nav button{width:100%;text-align:left;border:0;background:transparent;color:#d3dde1;padding:12px 10px;border-radius:10px;font:inherit;font-weight:700}
.admin-nav button.active,.admin-nav button:hover{background:rgba(63,169,245,.16);color:#fff;box-shadow:inset 3px 0 0 var(--brand-green)}
.admin-nav a{color:#d3dde1}
.admin-nav a:hover{color:var(--brand-blue)}
.admin-main{padding:35px}
.admin-card{background:white;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 5px 20px rgba(48,48,48,.05)}
.admin-toolbar{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-bottom:20px}
.table-wrap{overflow:auto}
.admin-table{border-collapse:collapse;width:100%;font-size:.82rem}
.admin-table th,.admin-table td{border-bottom:1px solid var(--line);padding:10px;text-align:left;vertical-align:top}
.admin-table th{position:sticky;top:0;background:#f7fafc;color:var(--charcoal-deep)}
.admin-table input,.admin-table textarea{min-width:150px;border:1px solid #d8e2e8;border-radius:8px;padding:7px;font:inherit}
.status{padding:8px 12px;border-radius:10px;background:var(--soft-green);color:var(--brand-green-deep);font-weight:800;font-size:.8rem}
@media(max-width:960px){
  .hero-grid,.detail-grid{grid-template-columns:1fr}
  .hero-art{height:350px}
  .book-grid{grid-template-columns:repeat(2,1fr)}
  .category-grid{grid-template-columns:1fr 1fr}
  .nav{display:none}
  .catalog-controls{grid-template-columns:1fr}
  .admin-shell{grid-template-columns:1fr}
  .admin-nav{display:flex;gap:5px;overflow:auto;align-items:center;border-top:0;border-left:5px solid var(--brand-green)}
  .admin-brand{margin:0 15px 0 0;padding:0 15px 0 0;border-bottom:0;border-right:1px solid rgba(255,255,255,.12);min-width:max-content}
  .admin-nav button{width:auto;white-space:nowrap}
  .footer-grid{grid-template-columns:1fr}
}
@media(max-width:570px){
  .book-grid,.category-grid{grid-template-columns:1fr}
  .wrap{width:min(100% - 28px,1180px)}
  .hero{padding-top:55px}
  .hero-art{display:none}
  h1{font-size:3.6rem}
  .topbar{display:none}
  .brand-logo{width:46px;height:46px}
  .brand-title{font-size:1.05rem}
  .brand-sub{font-size:.64rem}
  .header-row{height:76px}
}