@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700;800&family=Literata:opsz,wght@7..72,400;7..72,500;7..72,600;7..72,700&display=swap');

:root{
  --font-ui:"Be Vietnam Pro",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-reading:"Literata",Georgia,"Times New Roman",serif;

  --bg:#f7f1e6;
  --bg-soft:#efe3d0;
  --bg-paper:#fffaf2;
  --bg-card:#fffdf8;
  --bg-dark:#1c130c;
  --bg-brown:#2b1b10;

  --text:#2b2017;
  --heading:#24180f;
  --muted:#735f49;
  --muted-2:#927b62;

  --line:#dfcfb7;
  --line-soft:#eadfce;

  --brand:#8a5a2b;
  --brand-hover:#6d431f;
  --brand-soft:#f0dfc8;

  --accent:#8a5a2b;
  --accent-hover:#6d431f;
  --danger:#b42318;
  --ok:#16803a;

  --radius-sm:10px;
  --radius:16px;
  --radius-lg:22px;
  --shadow-sm:0 6px 18px rgba(58,39,20,.06);
  --shadow:0 14px 34px rgba(58,39,20,.10);
  --shadow-strong:0 24px 70px rgba(20,10,4,.28);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  background:
    radial-gradient(circle at top left, rgba(176,122,61,.15), transparent 32rem),
    radial-gradient(circle at 92% 18%, rgba(104,62,28,.10), transparent 28rem),
    linear-gradient(180deg,#fbf6ed 0%, var(--bg) 42%, #f4ebdc 100%);
  color:var(--text);
  font-family:var(--font-ui);
  line-height:1.68;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  pointer-events:none;
  opacity:.34;
  background-image:
    linear-gradient(90deg, rgba(138,90,43,.08) 1px, transparent 1px),
    linear-gradient(rgba(138,90,43,.055) 1px, transparent 1px);
  background-size:38px 38px;
  mask-image:linear-gradient(to bottom, rgba(0,0,0,.5), transparent 55%);
}

a{color:var(--brand);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--brand-hover)}
img{max-width:100%}
button,input,textarea,select{font:inherit}

.wrap{max-width:1180px;margin:0 auto;padding:0 18px}
.main{padding:34px 18px 54px;min-height:calc(100vh - 144px)}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:20;
  color:#fff;
  background:rgba(30,18,10,.92);
  border-bottom:1px solid rgba(255,255,255,.08);
  box-shadow:0 8px 24px rgba(16,8,2,.16);
  backdrop-filter:blur(12px);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:66px}
.brand{
  color:#fff7eb;
  text-decoration:none;
  font-weight:800;
  font-size:23px;
  letter-spacing:-.045em;
  line-height:1.15;
}
.brand:hover{color:#fff}
.topnav{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.topnav a{
  color:#f7ead8;
  text-decoration:none;
  font-size:15px;
  font-weight:600;
  padding:8px 10px;
  border-radius:999px;
}
.topnav a:hover{background:rgba(255,255,255,.10);color:#fff}

/* Footer */
.site-footer{
  color:#826d56;
  border-top:1px solid var(--line-soft);
  padding:24px 0;
  background:rgba(255,250,242,.58);
}

/* Hero public */
.hero{
  position:relative;
  overflow:hidden;
  border:1px solid rgba(223,207,183,.95);
  border-radius:var(--radius-lg);
  padding:34px;
  margin-bottom:30px;
  background:
    radial-gradient(circle at 85% 20%, rgba(255,255,255,.55), transparent 20rem),
    linear-gradient(135deg,#fff9ee 0%,#f4e1c5 58%,#ead1aa 100%);
  box-shadow:var(--shadow-sm);
}
.hero::after{
  content:"📚";
  position:absolute;
  right:28px;
  bottom:-28px;
  font-size:136px;
  opacity:.10;
  transform:rotate(-8deg);
}
.hero h1{
  position:relative;
  z-index:1;
  margin:0 0 10px;
  max-width:760px;
  color:var(--heading);
  font-size:clamp(32px,4.2vw,52px);
  line-height:1.08;
  letter-spacing:-.065em;
  font-weight:800;
}
.hero p{
  position:relative;
  z-index:1;
  max-width:700px;
  margin:0;
  color:#5b4632;
  font-size:18px;
}
.lead{font-size:18px;color:#5b4632;max-width:780px}
.section-title{font-size:25px;line-height:1.25;margin:0 0 18px;color:var(--heading);letter-spacing:-.035em}

/* Search */
.searchbar{position:relative;z-index:1;display:flex;gap:10px;margin-top:20px;max-width:720px}
.searchbar.wide,.wide{max-width:780px}
.searchbar input{
  flex:1;
  min-width:0;
  height:48px;
  padding:0 15px;
  border:1px solid #d8c3a5;
  border-radius:14px;
  background:#fffdf8;
  color:var(--text);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.75);
}
.searchbar input:focus,
.admin-form input:focus,
.admin-form textarea:focus,
.admin-form select:focus,
.login-card input:focus{
  outline:none;
  border-color:#a06c38;
  box-shadow:0 0 0 4px rgba(160,108,56,.15);
}
.searchbar button,.primary,.btn,.buy-btn{
  min-height:46px;
  border:0;
  border-radius:14px;
  background:var(--brand);
  color:#fff;
  padding:12px 18px;
  text-decoration:none;
  font-weight:800;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  transition:transform .18s ease, background .18s ease, box-shadow .18s ease;
}
.searchbar button:hover,.primary:hover,.btn:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(109,67,31,.18)}
.btn{background:#3e2b1d;color:#fff}

/* Public grid layout */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:28px;align-items:start}
.book-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.book-grid.small{grid-template-columns:repeat(3,minmax(0,1fr))}
.book-card{
  overflow:hidden;
  background:rgba(255,253,248,.92);
  border:1px solid var(--line-soft);
  border-radius:20px;
  box-shadow:var(--shadow-sm);
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.book-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#d6bd98}
.cover{display:block;position:relative;overflow:hidden;background:#eadbc4;aspect-ratio:3/4;text-decoration:none}
.cover img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .25s ease}
.book-card:hover .cover img{transform:scale(1.035)}
.no-cover{
  display:flex;
  align-items:center;
  justify-content:center;
  width:100%;height:100%;min-height:220px;
  color:#8a6a4b;
  font-weight:800;
  background:
    linear-gradient(135deg,#f1dfc2,#d9bf98),
    #eadbc4;
}
.book-card-body{padding:14px 14px 16px}
.book-card h2{font-size:17px;line-height:1.36;margin:0 0 7px;letter-spacing:-.025em}
.book-card h2 a{color:var(--heading);text-decoration:none}
.book-card h2 a:hover{color:var(--brand)}
.book-card p{margin:.55rem 0 0;font-size:14px;color:#5f5144}
.muted{color:var(--muted);font-size:14px}
.pill{
  display:inline-flex;
  align-items:center;
  max-width:100%;
  background:var(--brand-soft);
  color:#68411f;
  border:1px solid #e1caa8;
  border-radius:999px;
  padding:4px 10px;
  font-size:13px;
  line-height:1.3;
  text-decoration:none;
  font-weight:700;
}
.pill:hover{background:#ead2ae;color:#543214}

/* Sidebar */
.sidebar{position:sticky;top:92px;align-self:start}
.sidebar h3{margin:0 0 12px;color:var(--heading);font-size:20px;letter-spacing:-.025em}
.cat-list{display:grid;gap:9px}
.cat-list a{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  background:rgba(255,253,248,.92);
  border:1px solid var(--line-soft);
  border-radius:14px;
  padding:11px 13px;
  color:var(--text);
  text-decoration:none;
  box-shadow:0 4px 12px rgba(58,39,20,.035);
}
.cat-list a:hover{border-color:#d5b98f;background:#fff8ea;transform:translateX(2px)}
.cat-list span{color:var(--muted-2);font-size:13px;font-weight:700}
.affiliate-note,.notice,.buy-box{
  background:rgba(255,253,248,.94);
  border:1px solid var(--line-soft);
  border-radius:18px;
  padding:16px;
  margin:18px 0;
  box-shadow:var(--shadow-sm);
}
.affiliate-note{background:linear-gradient(180deg,#fffdf8,#fff2df)}
.affiliate-note b,.notice b{color:var(--heading)}

/* Pagination */
.pagination{display:flex;gap:8px;flex-wrap:wrap;margin:26px 0 4px}
.pagination a,.pagination span{
  min-width:40px;
  height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:8px 12px;
  border:1px solid var(--line-soft);
  border-radius:12px;
  background:#fffdf8;
  text-decoration:none;
  color:var(--text);
  font-weight:700;
}
.pagination a:hover{border-color:#c8a77a;background:#fff3df}
.pagination .current{background:var(--brand);border-color:var(--brand);color:#fff}

/* Detail page */
.breadcrumb{font-size:14px;color:var(--muted);margin-bottom:18px}
.book-detail{
  background:rgba(255,253,248,.62);
  border:1px solid rgba(234,223,206,.76);
  border-radius:24px;
  padding:22px;
  box-shadow:var(--shadow-sm);
}
.detail-head{display:grid;grid-template-columns:280px minmax(0,1fr);gap:30px;align-items:start;margin-bottom:22px}
.detail-cover{
  width:100%;
  border-radius:20px;
  border:1px solid var(--line-soft);
  background:#eadbc4;
  box-shadow:0 18px 42px rgba(54,35,17,.16);
}
.book-detail h1{
  margin:.2rem 0 .7rem;
  color:var(--heading);
  font-size:clamp(32px,4vw,48px);
  line-height:1.12;
  letter-spacing:-.06em;
}
.author{color:#5c4938}
.rating{color:#b56b16;font-weight:800;font-size:18px}
.rating span{color:var(--muted);font-size:14px;margin-left:6px}
.buy-box{
  background:linear-gradient(135deg,#fff8e9,#fff0da);
  border-color:#ecd2a8;
}
.buy-btn{
  width:100%;
  max-width:320px;
  background:var(--brand);
  color:#fff;
  font-size:17px;
  box-shadow:0 12px 24px rgba(238,77,45,.18);
}
.buy-btn:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px)}
.buy-box p{margin:.7rem 0 0;color:#6b5743;font-size:14px}
.book-detail section{margin-top:26px}
.book-detail section h2{
  margin:0 0 12px;
  color:var(--heading);
  font-size:25px;
  line-height:1.25;
  letter-spacing:-.035em;
}
.content{
  font-family:var(--font-reading);
  font-size:18px;
  line-height:1.86;
  color:#2e241a;
}
.content p{margin:0 0 1.05em}
.content h2,.content h3,.content h4{font-family:var(--font-ui);line-height:1.32;color:var(--heading);margin:1.55em 0 .55em}
.content blockquote{
  margin:1.4em 0;
  padding:14px 18px;
  border-left:4px solid var(--brand);
  background:#fff6e8;
  border-radius:0 14px 14px 0;
}
.content img{max-width:100%;height:auto;border-radius:16px;border:1px solid var(--line-soft);box-shadow:var(--shadow-sm)}
.content a{word-break:break-word}

/* Admin top bar */
.adminbar{
  position:sticky;
  top:66px;
  z-index:19;
  background:rgba(255,253,248,.94);
  border-bottom:1px solid var(--line-soft);
  box-shadow:0 6px 18px rgba(58,39,20,.05);
  backdrop-filter:blur(10px);
}
.adminbar-inner{display:flex;gap:10px;flex-wrap:wrap;padding-top:10px;padding-bottom:10px}
.adminbar a{
  color:#3b2a1c;
  text-decoration:none;
  font-weight:800;
  font-size:14px;
  padding:7px 10px;
  border-radius:999px;
}
.adminbar a:hover{background:#f0dfc8;color:#2b1b10}

/* Dashboard */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stat-grid div{
  background:rgba(255,253,248,.94);
  border:1px solid var(--line-soft);
  border-radius:18px;
  padding:18px;
  box-shadow:var(--shadow-sm);
}
.stat-grid b{display:block;font-size:34px;line-height:1;color:var(--brand);letter-spacing:-.04em}
.stat-grid span{display:block;margin-top:8px;color:var(--muted);font-weight:700}
.quick-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}

/* Forms */
.admin-form{
  background:rgba(255,253,248,.96);
  border:1px solid var(--line-soft);
  border-radius:20px;
  padding:20px;
  margin-bottom:22px;
  box-shadow:var(--shadow-sm);
}
.admin-form.compact{max-width:880px}
.admin-form label{
  display:block;
  font-weight:800;
  margin-bottom:14px;
  color:#4d3826;
}
.admin-form input,.admin-form textarea,.admin-form select,
.login-card input{
  width:100%;
  margin-top:7px;
  padding:12px 13px;
  border:1px solid #d8c3a5;
  border-radius:12px;
  background:#fffdf9;
  color:var(--text);
}
.admin-form textarea{resize:vertical;min-height:96px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.notice{
  background:#fff8e9;
  border-color:#ecd2a8;
  color:#5e4631;
}

/* Tables */
.table-wrap{overflow:auto;background:rgba(255,253,248,.94);border:1px solid var(--line-soft);border-radius:18px;box-shadow:var(--shadow-sm)}
table{width:100%;border-collapse:collapse;min-width:720px}
th,td{border-bottom:1px solid var(--line-soft);padding:12px;text-align:left;vertical-align:top}
th{background:#fff4e2;color:#4d3826;font-size:14px;text-transform:uppercase;letter-spacing:.02em}
td small{color:var(--muted)}
tr:hover td{background:#fffaf1}
.status{display:inline-flex;padding:5px 9px;border-radius:999px;font-size:13px;font-weight:800}
.status.published{background:#e7f7ed;color:var(--ok)}
.status.draft{background:#f1ece4;color:#7a5b35}
.danger,.linkdanger{background:transparent;color:var(--danger);border:0;cursor:pointer;font-weight:800}
.danger{border:1px solid var(--danger);border-radius:12px;padding:10px 14px;margin-top:10px;background:#fff}
.thumb{max-height:190px;border-radius:14px;border:1px solid var(--line-soft);box-shadow:var(--shadow-sm)}

/* Login page: CSS-only special theme */
body:has(.login-card){
  color:#f8eddf;
  background:
    linear-gradient(rgba(31,18,10,.74),rgba(31,18,10,.82)),
    radial-gradient(circle at 18% 18%, rgba(255,206,135,.24), transparent 26rem),
    radial-gradient(circle at 82% 0%, rgba(176,112,48,.28), transparent 28rem),
    linear-gradient(135deg,#21150d 0%,#352111 50%,#4a321c 100%);
}
body:has(.login-card)::before{
  opacity:.18;
  background-image:
    linear-gradient(90deg, rgba(255,255,255,.09) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px);
  background-size:42px 42px;
  mask-image:linear-gradient(to bottom, rgba(0,0,0,.8), transparent 80%);
}
body:has(.login-card) .main{
  display:grid;
  place-items:center;
  min-height:calc(100vh - 150px);
  padding-top:42px;
  padding-bottom:42px;
}
body:has(.login-card) .site-footer{background:rgba(28,19,12,.48);border-top-color:rgba(255,255,255,.10);color:#d9c6ae}
.login-card{
  width:min(94vw,480px);
  margin:0 auto;
  background:rgba(255,250,242,.97);
  color:var(--text);
  border:1px solid rgba(232,213,184,.82);
  border-radius:24px;
  padding:32px 30px;
  box-shadow:var(--shadow-strong);
  backdrop-filter:blur(10px);
}
.login-card h1{
  margin:0 0 22px;
  color:#332111;
  font-size:clamp(30px,4vw,42px);
  line-height:1.12;
  letter-spacing:-.06em;
}
.login-card form{display:grid;gap:15px}
.login-card label{display:block;color:#5a422d;font-weight:800}
.login-card input{height:48px}
.login-card .primary{width:100%;height:48px;margin-top:4px}

@media(max-width:1000px){
  .layout,.detail-head{grid-template-columns:1fr}
  .sidebar{position:static}
  .book-grid,.book-grid.small{grid-template-columns:repeat(3,minmax(0,1fr))}
  .detail-cover{max-width:300px}
}
@media(max-width:760px){
  .header-inner{align-items:flex-start;flex-direction:column;padding-top:12px;padding-bottom:12px;gap:8px}
  .adminbar{top:92px}
  .topnav{gap:6px}
  .topnav a{padding:6px 8px;font-size:14px}
  .main{padding-top:22px}
  .hero{padding:24px 20px;border-radius:20px}
  .hero::after{font-size:92px;right:10px;bottom:-18px}
  .searchbar{flex-direction:column}
  .searchbar button{width:100%}
  .book-grid,.book-grid.small{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .book-card-body{padding:11px}
  .book-card h2{font-size:15px}
  .book-card p{font-size:13px}
  .book-detail{padding:16px;border-radius:20px}
  .content{font-size:17px;line-height:1.82}
  .form-grid,.stat-grid{grid-template-columns:1fr}
  table{min-width:680px}
}
@media(max-width:420px){
  .wrap{padding:0 14px}
  .main{padding-left:14px;padding-right:14px}
  .brand{font-size:21px}
  .book-grid,.book-grid.small{gap:10px}
  .cover{aspect-ratio:3/4.25}
  .no-cover{min-height:180px}
  .pill{font-size:12px;padding:3px 8px}
  .login-card{padding:26px 20px;border-radius:20px}
}