/* /ebook sale pages — on top of style.css + cbta.css */
.eb-hero{background:linear-gradient(150deg,#082B39,#0E4D64 65%,#1d6b84);color:#fff;padding:48px 0 52px}
.eb-hero h1{font-family:var(--display);font-size:clamp(2rem,5.5vw,3.3rem);line-height:1.15;margin:16px 0 10px}
.eb-hero .cb-pitch{max-width:62ch}
.eb-books{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:22px}
.eb-book{display:grid;grid-template-columns:150px 1fr;gap:18px;background:#fff;border-radius:16px;padding:18px;box-shadow:var(--shadow);color:inherit;text-decoration:none;border-top:5px solid var(--bc);transition:transform .2s}
.eb-book:hover{transform:translateY(-3px)}
.eb-book img{width:100%;height:auto;border-radius:6px;box-shadow:0 8px 20px rgba(0,0,0,.2)}
.eb-book small{color:var(--mute);font-weight:600}
.eb-book h2{font-size:1.3rem;margin:4px 0 8px;color:var(--bc)}
.eb-book ul{list-style:none;display:grid;gap:4px;margin-bottom:12px;font-size:.95rem}
.eb-book .btn{margin-top:10px}
.eb-price{display:inline-block;font-family:var(--display);font-size:1.6rem;font-weight:800;color:#b4410b}

.eb-detail{display:grid!important;grid-template-columns:300px 1fr;gap:22px;align-items:start}
.eb-cover img{width:100%;height:auto;border-radius:8px;box-shadow:0 18px 40px rgba(0,0,0,.25);position:sticky;top:20px}
.eb-side{display:grid;gap:18px}
.eb-kicker{color:var(--mute);font-weight:600}
.eb-papers{list-style:none;margin:6px 0 10px;display:grid;gap:4px;font-weight:600;color:#0E4D64}
.eb-author{margin-top:10px;font-size:.95rem;color:var(--ink2)}
.eb-facts{list-style:none;display:grid;gap:6px;margin-top:12px;font-size:.95rem}
.eb-go .btn{margin-top:10px}
.eb-tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:12px 0}
.eb-tabs button{font:inherit;font-weight:600;padding:.6rem;border:1.5px solid var(--line);border-radius:10px;background:#fff;cursor:pointer}
.eb-tabs button.on{border-color:var(--cb);background:#e6f3ef;color:var(--cb)}
.eb-auth .cb-form{padding:0}
.eb-toc{grid-column:1/-1}
.eb-toc h3{color:#0E4D64;margin:16px 0 6px;font-size:1.05rem}
.eb-toc ol{margin-left:1.6em;display:grid;gap:8px;list-style-type:bengali}
.eb-toc ul{margin:4px 0 0 1.1em;color:var(--ink2);font-size:.93rem}
.hp{position:absolute;left:-9999px}

@media (max-width:760px){
  .eb-detail{grid-template-columns:1fr}
  .eb-cover{max-width:220px;margin:0 auto}
  .eb-cover img{position:static}
  .eb-book{grid-template-columns:110px 1fr}
}