/* ============================================================
   TALE OF ROMANCE — shared design system
   Palette: deep wine burgundy + blush rose + antique gold on warm
   ivory paper. Display face is Playfair Display (EN) / Tiro Bangla
   (BN); body copy is Lora (EN) / Noto Serif Bengali (BN); interface
   chrome is Inter (EN) / Hind Siliguri (BN). Toggle language with
   `document.documentElement.lang` — see js/i18n.js.
   ============================================================ */

:root{
  --wine:#5c1a2e;
  --wine-deep:#3c0f1e;
  --wine-soft:#7a2c43;
  --rose:#c4577c;
  --rose-soft:#e8a8bd;
  --blush:#f6dfe4;
  --gold:#b8894f;
  --gold-soft:#d9b57d;
  --paper:#fbf5ee;
  --paper-2:#f4e9dd;
  --card:#fffaf3;
  --text:#2c1f24;
  --text-soft:#6b5259;
  --muted:#9c848a;
  --line: rgba(44,31,36,0.13);
  --shadow: 0 20px 54px rgba(60,15,30,0.16);
  --success:#4a7a5e;
  --danger:#a13f3f;

  /* dark surfaces, used by the admin panel's sidebar/shell */
  --ink-1:#210810;
  --ink-2:#341021;

  --font-display:'Playfair Display', 'Tiro Bangla', serif;
  --font-body:'Lora', 'Noto Serif Bengali', serif;
  --font-ui:'Inter', 'Hind Siliguri', sans-serif;

  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:24px;
}

html[lang="bn"]{
  --font-display:'Tiro Bangla', serif;
  --font-body:'Noto Serif Bengali', serif;
  --font-ui:'Hind Siliguri', sans-serif;
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:var(--font-ui);
  background:var(--paper);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;background:none;border:none;color:inherit;}
img{max-width:100%;display:block;}
.hidden{display:none !important;}
svg{display:block;width:1em;height:1em;}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
}

/* ---------------- layout shell ---------------- */
.site-header{
  position:sticky; top:0; z-index:50;
  display:flex; align-items:center; gap:16px;
  padding:0 24px; height:68px;
  background:rgba(251,245,238,0.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex; align-items:center; gap:10px;}
.brand-mark{
  width:30px; height:30px; border-radius:50%; flex-shrink:0;
  background:linear-gradient(155deg,var(--rose),var(--wine));
  display:flex; align-items:center; justify-content:center;
  color:var(--blush); box-shadow:0 4px 12px rgba(92,26,46,0.35);
}
.brand-mark svg{width:15px; height:15px;}
.brand-text{font-family:var(--font-display); font-weight:700; font-style:italic; font-size:20px; color:var(--wine); white-space:nowrap;}
.main-nav{display:flex; align-items:center; gap:4px; flex:1;}
.main-nav a{
  font-size:14px; font-weight:600; color:var(--text-soft);
  padding:9px 14px; border-radius:999px; transition:background .2s ease, color .2s ease;
}
.main-nav a:hover, .main-nav a.active{background:var(--blush); color:var(--wine);}
.header-actions{display:flex; align-items:center; gap:10px;}
.nav-toggle{display:none;}

.lang-toggle{
  display:flex; align-items:center; gap:2px; padding:3px; border-radius:999px;
  background:var(--paper-2); border:1px solid var(--line);
}
.lang-toggle button{
  padding:6px 11px; font-size:12px; font-weight:700; border-radius:999px; color:var(--muted);
  transition:background .2s ease, color .2s ease;
}
.lang-toggle button.active{background:var(--wine); color:#fff;}

.site-footer{
  margin-top:auto; padding:0; color:var(--muted); font-size:13px;
  border-top:1px solid var(--line); background:var(--wine-deep);
}
.footer-inner{
  max-width:1200px; margin:0 auto; padding:48px 24px 28px;
  display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:32px;
  color:rgba(251,245,238,0.62);
}
.footer-col h4{font-family:var(--font-ui); font-size:12.5px; letter-spacing:0.08em; text-transform:uppercase; color:rgba(251,245,238,0.85); margin:0 0 14px;}
.footer-col a{display:block; font-size:13.5px; margin-bottom:9px; color:rgba(251,245,238,0.62); transition:color .2s ease;}
.footer-col a:hover{color:var(--rose-soft);}
.footer-brand{font-family:var(--font-display); font-style:italic; font-weight:700; font-size:22px; color:var(--blush); margin-bottom:10px;}
.footer-tagline{font-size:13px; line-height:1.7; max-width:280px; color:rgba(251,245,238,0.55);}
.footer-bottom{
  border-top:1px solid rgba(251,245,238,0.1); padding:18px 24px; text-align:center;
  font-size:12.5px; color:rgba(251,245,238,0.45);
}
@media (max-width:760px){ .footer-inner{grid-template-columns:1fr 1fr;} }

.page-wrap{min-height:100vh; display:flex; flex-direction:column;}
.container{max-width:1200px; margin:0 auto; padding:0 24px; width:100%;}

/* ---------------- buttons ---------------- */
.btn{
  font-family:var(--font-ui); font-weight:600; font-size:14.5px;
  padding:12px 24px; border-radius:999px; transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
  display:inline-flex; align-items:center; justify-content:center; gap:8px; white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(155deg,var(--rose),var(--wine));
  color:#fff; box-shadow:0 10px 24px rgba(92,26,46,0.3);
}
.btn-primary:hover{transform:translateY(-1px); box-shadow:0 14px 30px rgba(92,26,46,0.4);}
.btn-gold{background:linear-gradient(180deg,var(--gold-soft),var(--gold)); color:#2c1f0d; box-shadow:0 8px 22px rgba(184,137,79,0.35);}
.btn-ghost{background:transparent; border:1px solid var(--line); color:var(--text);}
.btn-ghost:hover{background:var(--paper-2);}
.btn-danger{background:var(--danger); color:#fff;}
.btn-danger:hover{opacity:0.9;}
.btn-sm{padding:8px 15px; font-size:13px;}
.btn:disabled{opacity:0.5; pointer-events:none;}
.btn-block{width:100%;}

/* ---------------- cards ---------------- */
.card{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius-md);
  padding:22px; box-shadow:0 4px 18px rgba(44,31,36,0.05);
}

.book-grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(220px,1fr)); gap:22px;}
.book-card{
  display:flex; flex-direction:column; border-radius:var(--radius-md); overflow:hidden;
  background:var(--card); border:1px solid var(--line); transition:transform .2s ease, box-shadow .2s ease;
}
.book-card:hover{transform:translateY(-4px); box-shadow:var(--shadow);}
.book-cover{
  aspect-ratio:3/4; width:100%; background:linear-gradient(160deg,var(--wine-deep),var(--wine));
  display:flex; align-items:center; justify-content:center; position:relative; overflow:hidden;
}
.book-cover img{width:100%; height:100%; object-fit:cover;}
.book-cover-title{
  font-family:var(--font-display); font-style:italic; color:var(--blush); text-align:center; padding:18px;
  font-size:17px; line-height:1.4;
}
.badge{
  position:absolute; top:10px; right:10px; font-size:11px; font-weight:700;
  padding:4px 9px; border-radius:999px; letter-spacing:0.04em;
}
.badge-paid{background:var(--rose); color:#fff;}
.badge-free{background:var(--gold); color:#2c1f0d;}
.book-card-body{padding:14px 16px 18px; display:flex; flex-direction:column; gap:4px; flex:1;}
.book-card-title{font-family:var(--font-display); font-size:16.5px; color:var(--text);}
.book-card-author{font-size:12.5px; color:var(--muted);}
.book-card-desc{font-size:13px; color:var(--text-soft); line-height:1.55; margin-top:4px; flex:1;}

/* ---------------- forms ---------------- */
.field{display:flex; flex-direction:column; gap:6px; margin-bottom:16px;}
.field label{font-size:13.5px; font-weight:600; color:var(--text-soft);}
.field input, .field select, .field textarea{
  font-family:var(--font-ui); font-size:15px; color:var(--text);
  background:var(--paper); border:1px solid var(--line); border-radius:var(--radius-sm);
  padding:11px 13px; transition:border-color .2s ease;
}
.field textarea{font-family:var(--font-body); resize:vertical; min-height:100px;}
.field input:focus, .field select:focus, .field textarea:focus{outline:none; border-color:var(--rose);}
.field-hint{font-size:12px; color:var(--muted);}
.form-error{background:rgba(161,63,63,0.1); color:var(--danger); padding:10px 14px; border-radius:var(--radius-sm); font-size:13.5px; margin-bottom:14px;}
.form-success{background:rgba(74,122,94,0.12); color:var(--success); padding:10px 14px; border-radius:var(--radius-sm); font-size:13.5px; margin-bottom:14px;}

/* ---------------- tables (admin) ---------------- */
table.data-table{width:100%; border-collapse:collapse; font-size:14px;}
.data-table th{
  text-align:left; font-size:11.5px; letter-spacing:0.06em; text-transform:uppercase;
  color:var(--muted); padding:10px 12px; border-bottom:2px solid var(--line);
}
.data-table td{padding:12px; border-bottom:1px solid var(--line); vertical-align:middle;}
.data-table tr:hover td{background:var(--paper-2);}
.pill{display:inline-block; padding:3px 10px; border-radius:999px; font-size:11.5px; font-weight:700;}
.pill-admin{background:var(--rose); color:#fff;}
.pill-author{background:var(--gold); color:#2c1f0d;}
.pill-reader{background:var(--paper-2); color:var(--text-soft); border:1px solid var(--line);}
.pill-paid{background:var(--success); color:#fff;}
.pill-free{background:var(--paper-2); color:var(--muted); border:1px solid var(--line);}
.pill-draft{background:var(--paper-2); color:var(--muted);}
.pill-pending{background:#c9873d; color:#fff;}
.pill-published{background:var(--success); color:#fff;}

/* ---------------- stat tiles ---------------- */
.stat-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(160px,1fr)); gap:16px;}
.stat-tile{background:var(--card); border:1px solid var(--line); border-radius:var(--radius-md); padding:18px 20px;}
.stat-num{font-family:var(--font-display); font-size:30px; color:var(--rose);}
.stat-label{font-size:12.5px; color:var(--muted); text-transform:uppercase; letter-spacing:0.05em; margin-top:2px;}

/* ---------------- misc ---------------- */
.section-head{display:flex; align-items:baseline; justify-content:space-between; gap:16px; margin:36px 0 18px;}
.section-title{font-family:var(--font-display); font-size:26px; color:var(--text); font-weight:700; font-style:italic;}
.eyebrow{font-family:var(--font-ui); font-size:12px; letter-spacing:0.18em; color:var(--rose); text-transform:uppercase; display:block; margin-bottom:8px; font-weight:700;}
.empty-state{text-align:center; padding:60px 20px; color:var(--muted);}
.tabs{display:flex; gap:6px; border-bottom:1px solid var(--line); margin-bottom:24px; flex-wrap:wrap;}
.tab{padding:10px 16px; font-size:14px; font-weight:600; color:var(--muted); border-bottom:2px solid transparent;}
.tab.active{color:var(--rose); border-bottom-color:var(--rose);}
.toast{
  position:fixed; bottom:24px; left:50%; transform:translateX(-50%);
  background:var(--wine-deep); color:var(--paper); padding:12px 20px; border-radius:999px;
  font-size:13.5px; z-index:200; box-shadow:var(--shadow); opacity:0; pointer-events:none; transition:opacity .25s ease, transform .25s ease;
}
.toast.show{opacity:1; transform:translateX(-50%) translateY(-6px);}

/* ---------------- banner carousel (homepage hero) ---------------- */
.banner-carousel{
  position:relative; overflow:hidden; border-radius:0;
  background:linear-gradient(180deg,#26060f 0%, #3c0f1e 32%, #4c1526 62%, #5c1a2e 100%);
  color:var(--paper);
}
.banner-track{display:flex; transition:transform .6s cubic-bezier(.65,0,.35,1);}
.banner-slide{
  flex:0 0 100%; display:flex; align-items:center; justify-content:center; text-align:center;
  padding:84px 24px 68px; position:relative; min-height:360px;
}
.banner-slide::before{
  content:''; position:absolute; inset:0;
  background:radial-gradient(ellipse 80% 60% at 50% -10%, rgba(232,168,189,0.22) 0%, transparent 60%);
}
.banner-slide-bg{position:absolute; inset:0; background-size:cover; background-position:center; opacity:0.28;}
.banner-slide-inner{position:relative; max-width:620px;}
.banner-eyebrow{color:var(--gold-soft); letter-spacing:0.32em; font-size:11.5px; margin-bottom:16px; text-transform:uppercase; font-weight:700;}
.banner-title{
  font-family:var(--font-display); font-weight:700; font-style:italic; font-size:clamp(30px,5.5vw,50px);
  margin:0 0 14px; background:linear-gradient(180deg,#fdf1f4, var(--rose-soft));
  -webkit-background-clip:text; background-clip:text; color:transparent; line-height:1.15;
}
.banner-subtitle{font-family:var(--font-body); font-size:16px; color:rgba(251,245,238,0.82); max-width:520px; margin:0 auto 28px; line-height:1.8;}
.banner-dots{position:absolute; bottom:20px; left:0; right:0; display:flex; justify-content:center; gap:8px; z-index:3;}
.banner-dot{width:8px; height:8px; border-radius:50%; background:rgba(251,245,238,0.35); transition:all .25s ease;}
.banner-dot.active{background:var(--gold-soft); width:22px; border-radius:5px;}
.banner-arrow{
  position:absolute; top:50%; transform:translateY(-50%); z-index:3; width:40px; height:40px; border-radius:50%;
  background:rgba(251,245,238,0.12); border:1px solid rgba(251,245,238,0.25); color:var(--paper);
  display:flex; align-items:center; justify-content:center; transition:background .2s ease;
}
.banner-arrow:hover{background:rgba(251,245,238,0.22);}
.banner-arrow.prev{left:18px;}
.banner-arrow.next{right:18px;}
.banner-arrow svg{width:17px; height:17px;}
@media (max-width:700px){ .banner-arrow{display:none;} }

.menu-strip{display:flex; gap:10px; flex-wrap:wrap; justify-content:center; margin:-26px auto 0; position:relative; z-index:2; padding:0 20px;}
.menu-chip{
  background:var(--card); border:1px solid var(--line); padding:9px 18px; border-radius:999px;
  font-size:13.5px; font-weight:600; color:var(--text-soft); box-shadow:0 6px 18px rgba(44,31,36,0.1);
}
.menu-chip.active, .menu-chip:hover{background:var(--wine); color:#fff; border-color:var(--wine);}
.search-row{display:flex; gap:10px; max-width:480px; margin:26px auto 0;}
.search-row input{flex:1;}

@media (max-width: 860px){
  .main-nav{display:none;}
  .nav-toggle{display:flex; width:38px; height:38px; align-items:center; justify-content:center; border-radius:10px;}
  .nav-toggle:hover{background:var(--paper-2);}
}