/* রংধনু ২.০: রাহনুমার মতো পরিষ্কার মেরুন ডিজাইন + সমকালীনের মতো বইয়ের পেজ ও মোবাইল ভিউ */
:root{
  --rd-red:#8a1c2c;--rd-red-d:#6e1424;--rd-red-l:#fbeceb;
  --rd-ink:#221a17;--rd-text:#3d3431;--rd-muted:#857a74;
  --rd-cream:#f7f3ee;--rd-panel:#f2eee8;--rd-line:#ebe4dc;--rd-sage:#e8ebe2;
  --rd-gold:#b98a3e;--rd-orange:#e8590c;--rd-green:#178a45;
  --rd-serif:"Noto Serif Bengali","Hind Siliguri",serif;--rd-sans:"Hind Siliguri","Noto Sans Bengali",system-ui,sans-serif;
  --rd-r:8px;--rd-shadow:0 18px 40px -24px rgba(60,20,20,.35)
}
body.rd4{background:#fff!important;color:var(--rd-text);font-family:var(--rd-sans)!important;padding-bottom:0!important;margin:0}
body.rd4 *,body.rd4 *::before,body.rd4 *::after{box-sizing:border-box}
html.rd-lock,html.rd-lock body{overflow:hidden}
.rd4 .rd-wrap{max-width:1240px;margin:0 auto;padding:0 20px}
.rd4 .rd-i{width:20px;height:20px;flex:none;display:inline-block;vertical-align:middle}
.rd4 a{color:inherit;text-decoration:none}
.rd4 img{max-width:100%;height:auto}
.rd4 h1,.rd4 h2,.rd4 h3{font-family:var(--rd-serif);color:var(--rd-ink);font-weight:600;letter-spacing:0;text-transform:none;margin:0;line-height:1.3}
.rd4 button{font-family:inherit}

/* আগের ডিজাইন ও থিমের হেডার-ফুটার লুকানো */
.rd4 .nsh-top,.rd4 .nsh-sticky,.rd4 .nsh-footer,.rd4 .nw-chat,.rd4 .rongdhonu-bottomnav,.rd4 .rongdhonu-stickybuy,
.rd4 .rongdhonu-searchbar,.rd4 .rongdhonu-notice,.rd4-shell #masthead,.rd4-shell .site-header,.rd4-shell .site-footer,
.rd4-shell .ast-mobile-header-wrap,.rd4-shell #ast-mobile-header,.rd4-shell .ast-above-header-wrap{display:none!important}
.rd4-shell .site-content{background:#fff}

/* ---------- বাটন ---------- */
.rd4 .rd-btn,.rd4 button.rd-btn,.rd4 a.rd-btn{display:inline-flex!important;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px!important;border-radius:6px!important;
  font:600 15px/1.2 var(--rd-sans)!important;letter-spacing:0!important;text-transform:none!important;cursor:pointer;border:1.5px solid transparent!important;box-shadow:none!important;transition:background .15s,color .15s,border-color .15s;white-space:nowrap;text-decoration:none!important}
.rd4 .rd-btn .rd-i{width:17px;height:17px}
.rd4 .rd-btn-main{background:var(--rd-red)!important;color:#fff!important}
.rd4 .rd-btn-main:hover{background:var(--rd-red-d)!important}
.rd4 .rd-btn-line{background:#fff!important;color:var(--rd-ink)!important;border-color:#d9d0c7!important}
.rd4 .rd-btn-line:hover{border-color:var(--rd-red)!important;color:var(--rd-red)!important}
.rd4 .rd-btn-dark{background:var(--rd-ink)!important;color:#fff!important}
.rd4 .rd-btn-read{background:var(--rd-orange)!important;color:#fff!important}
.rd4 .rd-btn-lg{min-height:52px;padding:0 26px!important;font-size:16px!important}
.rd4 .rd-btn-block{display:flex!important;width:100%}
.rd4 .rd-btn.loading{opacity:.6;pointer-events:none}
.rd4 .rd-btn.added::after{content:"✓";margin-left:2px}
.rd4 .added_to_cart{display:none!important}

/* ---------- উপরের ছোট বার ---------- */
.rd4-top{background:var(--rd-cream);border-bottom:1px solid var(--rd-line);font-size:13.5px;color:var(--rd-muted)}
.rd4-top .rd-wrap{display:flex;align-items:center;gap:16px;min-height:34px}
.rd-top-name{display:flex;align-items:center;gap:6px;color:var(--rd-text)}
.rd-top-name .rd-i{width:16px;height:16px}
.rd-top-note{flex:1;text-align:center}
.rd-top-r{display:flex;align-items:center;gap:18px}
.rd-top-r a{display:inline-flex;align-items:center;gap:6px}
.rd-top-r a:hover{color:var(--rd-red)}
.rd-top-r .rd-i{width:15px;height:15px}

/* ---------- হেডার ---------- */
.rd4-head{background:#fff;position:sticky;top:0;z-index:900;border-bottom:1px solid var(--rd-line);transition:box-shadow .2s}
.admin-bar .rd4-head{top:32px}
.rd4-head.scrolled{box-shadow:0 8px 24px -18px rgba(40,10,10,.45)}
.rd-head-in{display:flex;align-items:center;gap:28px;min-height:84px}
.rd-logo{display:flex;align-items:center;flex:none}
.rd-logo img{height:58px;width:auto;display:block}
.rd4 .rd-search{position:relative;flex:1;max-width:600px;display:flex;align-items:center;gap:6px;background:var(--rd-cream)!important;border:1px solid var(--rd-line)!important;border-radius:8px!important;padding:5px 5px 5px 14px;margin:0}
.rd4 .rd-search:focus-within{border-color:var(--rd-red)!important;box-shadow:0 0 0 3px rgba(138,28,44,.12)!important;background:#fff!important}
.rd4 .rd-search>.rd-i{color:var(--rd-muted);margin:0}
.rd4 .rd-search input[type=search]{flex:1;min-width:0;border:0!important;background:transparent!important;box-shadow:none!important;outline:0;padding:10px 6px!important;font:400 15.5px var(--rd-sans)!important;color:var(--rd-ink);height:auto!important;margin:0}
.rd4 .rd-search button[type=submit]:not(.ns-all){display:inline-flex!important;align-items:center;gap:8px;height:44px!important;padding:0 20px!important;border-radius:6px!important;background:var(--rd-red)!important;color:#fff!important;font:600 15px var(--rd-sans)!important;border:0!important;width:auto!important}
.rd4 .rd-search button .rd-i{width:16px;height:16px}
.rd4 .rd-search .rongdhonu-suggest{top:calc(100% + 6px);border-radius:8px;border-color:var(--rd-line)}
.rd4 .rongdhonu-suggest b{color:var(--rd-red)}
.rd4 .ns-all{color:var(--rd-red)!important}
.rd-head-icons{display:flex;align-items:center;gap:14px;margin-left:auto}
.rd4 .rd-iconbtn{position:relative;display:inline-grid;place-items:center;width:44px;height:44px;border-radius:50%;background:transparent!important;border:0!important;color:var(--rd-ink)!important;padding:0!important;cursor:pointer;box-shadow:none!important}
.rd4 .rd-iconbtn .rd-i{width:24px;height:24px}
.rd4 .rd-iconbtn:hover{background:var(--rd-cream)!important}
.rd-acc{display:flex;align-items:center;gap:8px;color:var(--rd-ink);padding-right:14px;border-right:1px solid var(--rd-line)}
.rd-acc .rd-i{width:24px;height:24px}
.rd-acc span{font-size:13px;line-height:1.25;color:var(--rd-muted)}
.rd4 .rd-count,.rd4 .rd-wcount{position:absolute;top:2px;right:0;min-width:18px;height:18px;padding:0 4px;border-radius:9px;background:var(--rd-red);color:#fff;font:600 11px/18px var(--rd-sans);text-align:center;font-style:normal}
.rd4 .rd-wcount[hidden]{display:none}
.rd4 .rd-burger{display:none!important}

/* মেন্যু বার */
.rd4-nav{background:#fff;border-bottom:1px solid var(--rd-line);position:relative;z-index:800}
.rd-nav-in{display:flex;align-items:center;gap:26px;min-height:54px}
.rd-allcats{position:relative;padding-right:24px;border-right:1px solid var(--rd-line)}
.rd4 .rd-allbtn{display:flex!important;align-items:center;gap:10px;background:none!important;border:0!important;padding:8px 0!important;color:var(--rd-ink)!important;font:500 15.5px var(--rd-sans)!important;cursor:pointer;box-shadow:none!important}
.rd-allbtn .rd-i:last-child{width:16px;height:16px;margin-left:8px}
.rd-allmenu{position:absolute;top:calc(100% + 8px);left:0;width:280px;background:#fff;border:1px solid var(--rd-line);border-radius:8px;box-shadow:var(--rd-shadow);padding:8px;display:none;z-index:950}
.rd-allcats:hover .rd-allmenu,.rd-allcats.open .rd-allmenu{display:block}
.rd-allcats::after{content:"";position:absolute;left:0;right:0;top:100%;height:12px}
.rd-allmenu a{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;border-radius:6px;font-size:15px;color:var(--rd-text)}
.rd-allmenu a:hover{background:var(--rd-cream);color:var(--rd-red)}
.rd-allmenu small{color:var(--rd-muted);font-size:12.5px}
.rd-links{display:flex;align-items:center;gap:26px;flex:1;overflow:hidden;white-space:nowrap}
.rd-links a{font-size:15.5px;color:var(--rd-ink);padding:15px 0;border-bottom:2px solid transparent}
.rd-links a:hover,.rd-links a.on{color:var(--rd-red);border-bottom-color:var(--rd-red)}
.rd-today{display:flex;align-items:center;gap:7px;color:var(--rd-red)!important;font-size:15.5px;font-weight:500;flex:none}
.rd-today .rd-i{width:18px;height:18px}
.rd4-msearch{display:none}

/* মোবাইল ড্রয়ার */
.rd-drawer{position:fixed;inset:0;z-index:100000;background:rgba(30,10,12,0);transition:background .25s}
.rd-drawer.on{background:rgba(30,10,12,.45)}
.rd-drawer-in{position:absolute;top:0;bottom:0;left:0;width:min(330px,86vw);background:#fff;overflow-y:auto;padding:0 0 30px;transform:translateX(-102%);transition:transform .25s ease}
.rd-drawer.on .rd-drawer-in{transform:none}
.rd-drawer-top{display:flex;align-items:center;justify-content:space-between;padding:12px 12px 12px 18px;border-bottom:1px solid var(--rd-line);margin-bottom:6px;position:sticky;top:0;background:#fff}
.rd-drawer-top img{height:42px;width:auto}
.rd-drawer-in>a{display:flex;align-items:center;gap:12px;padding:13px 20px;font-size:16px;color:var(--rd-ink);border-bottom:1px solid #f4efea}
.rd-drawer-in>a .rd-i{color:var(--rd-red)}
.rd-drawer-in>a.rd-sub{justify-content:space-between;padding-left:20px;font-size:15.5px}
.rd-drawer-in small{color:var(--rd-muted);font-size:12.5px}
.rd-drawer-h{display:block;padding:18px 20px 6px;font-size:12.5px;letter-spacing:.5px;color:var(--rd-muted);font-weight:500}
.rd4 .rd-drawer-call{margin:18px 20px 0;border:1.5px solid var(--rd-red)!important;border-radius:8px;justify-content:center;color:var(--rd-red)!important;font-weight:600}

/* ---------- হোম: ব্যানার ---------- */
.rd-hero{padding:26px 0 8px}
.rd-slider{position:relative;border-radius:14px;overflow:hidden;background:var(--rd-sage)}
.rd-slides{display:flex;transition:transform .55s cubic-bezier(.4,.1,.2,1)}
.rd-slide{flex:0 0 100%;min-width:0;position:relative}
.rd-slide-img{display:block;background:#6e1424;aspect-ratio:1240/472}
.rd-slide-img img{display:block;width:100%;height:100%;object-fit:cover}
.rd-slide-txt{display:grid;grid-template-columns:1.05fr 1fr;align-items:center;gap:20px;padding:46px 54px;aspect-ratio:1240/472;background:radial-gradient(circle at 75% 55%,rgba(255,255,255,.55),transparent 55%),var(--rd-sage)}
.rd-eyebrow{display:inline-flex;align-items:center;gap:10px;color:#8b5e3c;font-size:15px}
.rd-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:#b0703f}
.rd-eyebrow::after{content:"";width:46px;height:1px;background:#c9b8a8}
.rd-slide-copy h2{font-size:clamp(28px,3.6vw,46px);line-height:1.4;margin:16px 0 12px;font-weight:500}
.rd-slide-copy p{font-size:17px;color:var(--rd-muted);margin:0 0 24px;line-height:1.7}
.rd-stats{display:flex;gap:26px;margin-top:28px}
.rd-stats div{display:flex;align-items:baseline;gap:8px}
.rd-stats div+div{padding-left:26px;border-left:1px solid #cfc6bc}
.rd-stats b{font:600 22px var(--rd-serif);color:var(--rd-ink)}
.rd-stats span{font-size:14px;color:var(--rd-muted)}
.rd-fan{position:relative;height:100%;min-height:280px}
.rd-fan img{position:absolute;bottom:16%;width:34%;max-width:200px;aspect-ratio:2/3;object-fit:cover;border-radius:3px;box-shadow:0 26px 40px -18px rgba(40,20,10,.55)}
.rd-fan .rd-fan-0{left:8%;transform:rotate(-9deg);z-index:1}
.rd-fan .rd-fan-1{left:33%;bottom:22%;width:38%;z-index:3;transform:rotate(1deg)}
.rd-fan .rd-fan-2{left:62%;transform:rotate(8deg);z-index:2}
.rd-plinth{position:absolute;left:4%;right:2%;bottom:6%;height:16%;border-radius:50%;background:#e4d6c3;box-shadow:inset 0 -8px 18px rgba(0,0,0,.06)}
.rd-slider-ctl{position:absolute;left:54px;bottom:22px;display:flex;align-items:center;gap:14px;z-index:5}
.rd-slide-img~.rd-slider-ctl,.rd-slider-ctl{color:var(--rd-ink)}
.rd4 .rd-slider-ctl button{width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.85)!important;border:0!important;display:grid;place-items:center;cursor:pointer;padding:0!important;color:var(--rd-ink)!important;box-shadow:0 4px 12px -6px rgba(0,0,0,.4)!important}
.rd-slider-ctl .rd-i{width:16px;height:16px}
.rd-dots{display:flex;gap:6px}
.rd-dots i{width:8px;height:8px;border-radius:4px;background:rgba(0,0,0,.25);cursor:pointer;transition:width .3s,background .3s}
.rd-dots i.on{width:26px;background:var(--rd-red)}

/* ---------- সেকশন ---------- */
.rd-sec{padding:34px 0 10px}
.rd-sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.rd-sec-head small{display:block;color:var(--rd-muted);font-size:14px;margin-bottom:4px}
.rd-sec-head h2{font-size:clamp(23px,2.4vw,30px)}
.rd-sec-head>a{display:inline-flex;align-items:center;gap:8px;color:var(--rd-red);font-size:15px;padding-bottom:6px;border-bottom:1px solid #d9c9c4;flex:none}
.rd-sec-head>a .rd-i{width:17px;height:17px}

/* বিভাগ */
.rd-catgrid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:14px}
@media (max-width:1180px){.rd-catgrid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.rd-cat{display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;padding:20px 10px 16px;border:1px solid var(--rd-line);border-radius:10px;background:#fff;transition:transform .2s,box-shadow .2s,border-color .2s}
.rd-cat:hover{transform:translateY(-3px);box-shadow:var(--rd-shadow);border-color:#e0d3c8}
.rd-cat-ic{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;margin-bottom:6px}
.rd-cat-ic .rd-i{width:28px;height:28px}
.rd-cat b{font:500 16px var(--rd-serif);color:var(--rd-ink)}
.rd-cat small{color:var(--rd-muted);font-size:13px}
.rd-cat-0 .rd-cat-ic{background:#f9e3dc;color:#b4532f}.rd-cat-1 .rd-cat-ic{background:#e3eedf;color:#3f7a45}.rd-cat-2 .rd-cat-ic{background:#e9e4f6;color:#6a54a8}
.rd-cat-3 .rd-cat-ic{background:#f6ead6;color:#a6762c}.rd-cat-4 .rd-cat-ic{background:#e1ebf3;color:#3c6f96}.rd-cat-5 .rd-cat-ic{background:#f8e1e6;color:#a8344c}

/* ---------- বইয়ের কার্ড ---------- */
.rd-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:22px 18px}
.rd-card{display:flex;flex-direction:column;min-width:0}
.rd-cover{position:relative;background:var(--rd-panel);border-radius:8px;aspect-ratio:4/5;display:flex;align-items:center;justify-content:center;padding:14% 14% 12%;margin-bottom:12px;overflow:hidden}
.rd-cover>a{display:block;height:100%;width:100%}
.rd-cover img{width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 12px 14px rgba(40,20,10,.28));transition:transform .3s}
.rd-card:hover .rd-cover img{transform:translateY(-4px)}
.rd4 .rd-off{position:absolute;top:10px;left:10px;background:#fff;color:var(--rd-red);font:600 12.5px/1 var(--rd-sans);padding:5px 7px;border-radius:4px;z-index:2}
.rd4 .rd-heart{position:absolute;top:8px;right:8px;width:32px;height:32px;border-radius:50%;background:#fff!important;border:0!important;display:grid;place-items:center;cursor:pointer;color:#8a807a!important;padding:0!important;z-index:2;box-shadow:0 2px 8px -4px rgba(0,0,0,.3)!important}
.rd4 .rd-heart .rd-i{width:17px;height:17px}
.rd4 .rd-heart.on{color:var(--rd-red)!important}.rd4 .rd-heart.on path{fill:currentColor}
.rd-name{font:500 17px/1.4 var(--rd-serif)!important;margin:0 0 4px!important;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.8em}
.rd-name a:hover{color:var(--rd-red)}
.rd-by{font-size:14px;color:var(--rd-muted);margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rd-price{display:flex;align-items:baseline;gap:8px;margin-bottom:12px}
.rd-price b{font:600 21px var(--rd-serif);color:var(--rd-red)}
.rd-price s{font-size:14.5px;color:#a69d96}
.rd-acts{display:flex;flex-direction:column;gap:8px;margin-top:auto}
.rd-acts .rd-btn{min-height:40px;font-size:14px!important;padding:0 10px!important}

/* আজকের অফার */
.rd-offer-box{background:var(--rd-cream);border:1px solid var(--rd-line);border-radius:14px;padding:26px 26px 30px}
.rd-offer-head{display:flex;align-items:center;gap:20px;margin-bottom:22px;flex-wrap:wrap}
.rd-offer-head>div:first-child{flex:1;min-width:220px}
.rd-offer-head small{display:inline-flex;align-items:center;gap:6px;color:var(--rd-red);font-size:14px;margin-bottom:4px}
.rd-offer-head small .rd-i{width:16px;height:16px}
.rd-offer-head h2{font-size:clamp(22px,2.3vw,28px)}
.rd-clock{display:flex;gap:8px}
.rd-clock span{display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:58px;height:62px;background:#fff;border:1px solid var(--rd-line);border-radius:8px}
.rd-clock b{font:600 22px/1 var(--rd-serif);color:var(--rd-red)}
.rd-clock i{font-style:normal;font-size:11.5px;color:var(--rd-muted);margin-top:5px}

/* লেখক */
.rd-authors{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}
.rd-authors a{display:flex;flex-direction:column;align-items:center;text-align:center;gap:4px;padding:18px 10px;border:1px solid var(--rd-line);border-radius:10px}
.rd-authors a:hover{border-color:var(--rd-red)}
.rd-authors i{width:58px;height:58px;border-radius:50%;display:grid;place-items:center;background:var(--rd-red-l);color:var(--rd-red);font:600 24px var(--rd-serif);font-style:normal;margin-bottom:6px}
.rd-authors b{font-weight:500;font-size:15px;color:var(--rd-ink);line-height:1.35}
.rd-authors small{font-size:12.5px;color:var(--rd-muted)}

/* ---------- প্রতিশ্রুতি + ফুটার ---------- */
.rd4-promise{padding:40px 0 0}
.rd-quote{display:flex;align-items:center;gap:22px;background:var(--rd-cream);border-radius:12px;padding:30px 36px}
.rd-q{font:600 54px/1 var(--rd-serif);color:#c9a888}
.rd-quote>div{flex:1}
.rd-quote small{color:var(--rd-muted);font-size:13.5px}
.rd-quote h3{font-size:24px;margin:4px 0 6px;font-weight:500}
.rd-quote p{margin:0;color:var(--rd-muted);font-size:15px}
.rd-quote>a{display:inline-flex;align-items:center;gap:8px;color:var(--rd-text);font-size:15px;flex:none}
.rd-quote>a .rd-i{width:16px;height:16px}
.rd-feats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--rd-line);margin-top:38px;padding:24px 0}
.rd-feats div{display:grid;grid-template-columns:auto 1fr;column-gap:14px;padding:4px 22px;border-left:1px solid var(--rd-line)}
.rd-feats div:first-child{border-left:0;padding-left:0}
.rd-feats .rd-i{grid-row:span 2;width:24px;height:24px;color:#9b7b5e;margin-top:3px}
.rd-feats b{font-weight:500;font-size:16px;color:var(--rd-ink)}
.rd-feats span{font-size:13.5px;color:var(--rd-muted)}
.rd4-foot{background:var(--rd-cream);border-top:1px solid var(--rd-line);color:var(--rd-muted)}
.rd-foot-in{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding:46px 20px 36px}
.rd-foot-brand img{height:70px;width:auto;margin-bottom:12px}
.rd-foot-brand p{font-size:14.5px;line-height:1.8;margin:0 0 16px}
.rd-social{display:flex;gap:10px}
.rd-social a{width:42px;height:42px;border-radius:50%;border:1px solid #e0d4c8;display:grid;place-items:center;color:var(--rd-red);background:#fff}
.rd-social a:hover{background:var(--rd-red);color:#fff;border-color:var(--rd-red)}
.rd-social .rd-i{width:19px;height:19px}
.rd-foot-col{display:flex;flex-direction:column;gap:11px}
.rd-foot-col h4{font:500 17px var(--rd-serif);color:var(--rd-ink);margin:0 0 8px}
.rd-foot-col a{font-size:14.5px}
.rd-foot-col a:hover{color:var(--rd-red)}
.rd-bigtel{font:500 26px var(--rd-sans)!important;color:var(--rd-red)!important}
.rd-copy{border-top:1px solid var(--rd-line);font-size:13.5px;padding:14px 0;text-align:center}
.rd4-dock{display:none}

/* ---------- অফার পপআপ ---------- */
.rd-pop{position:fixed;inset:0;z-index:100001;display:grid;place-items:center;padding:18px;background:rgba(40,30,28,0);transition:background .2s}
.rd-pop[hidden]{display:none}
.rd-pop.on{background:rgba(40,30,28,.55);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}
.rd-pop-in{display:grid;grid-template-columns:1fr 1.3fr;width:min(780px,100%);border-radius:16px;overflow:hidden;background:#fffaf5;box-shadow:0 40px 80px -30px rgba(0,0,0,.6);transform:scale(.96);opacity:0;transition:transform .2s,opacity .2s}
.rd-pop.on .rd-pop-in{transform:none;opacity:1}
.rd-pop-l{background:linear-gradient(160deg,#a32a3c,#7a1a2a);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:space-between;padding:30px 20px;text-align:center;gap:20px}
.rd-pop-l b{font:600 22px var(--rd-serif)}
.rd-pop-l span{font:500 17px var(--rd-serif)}
.rd-pop-fan{position:relative;width:100%;height:200px}
.rd-pop-fan img{position:absolute;bottom:0;width:42%;aspect-ratio:2/3;object-fit:cover;border-radius:3px;box-shadow:0 18px 30px -12px rgba(0,0,0,.6)}
.rd-pop-fan .f0{left:6%;transform:rotate(-10deg)}
.rd-pop-fan .f1{left:29%;width:44%;z-index:2;bottom:10px}
.rd-pop-fan .f2{right:6%;transform:rotate(10deg)}
.rd-pop-r{position:relative;padding:34px 34px 26px}
.rd4 .rd-pop-x{position:absolute;top:12px;right:12px;width:40px;height:40px;border-radius:50%;border:2px solid var(--rd-red)!important;background:#fff!important;color:var(--rd-ink)!important;display:grid;place-items:center;cursor:pointer;padding:0!important}
.rd-pop-r small{display:flex;align-items:center;gap:6px;color:var(--rd-red);font-size:14px}
.rd-pop-r small .rd-i{width:16px;height:16px}
.rd-pop-r h3{font-size:30px;line-height:1.35;margin:12px 0 10px;font-weight:500}
.rd-pop-r p{margin:0 0 18px;color:var(--rd-text);font-size:16px}
.rd-pop-r p b{color:var(--rd-red)}
.rd-pop-r em{display:block;font-style:normal;font-size:13.5px;color:var(--rd-muted);margin-bottom:8px}
.rd-pop-r .rd-clock{margin-bottom:22px}
.rd-pop-r .rd-btn{min-height:52px}
.rd-pop-foot{text-align:center;font-size:13.5px!important;color:var(--rd-muted)!important;margin:14px 0 0!important}

/* ---------- বইয়ের পেজ ---------- */
.rd4-main{min-height:50vh}
.rd-notices:empty{display:none}
.rd-notices .woocommerce-message,.rd-notices .woocommerce-error,.rd-notices .woocommerce-info{margin:16px 0 0!important;border-radius:8px;border-top-color:var(--rd-red)!important}
.rd-crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--rd-muted);padding:22px 0 18px}
.rd-crumbs a:hover{color:var(--rd-red)}
.rd-crumbs i{font-style:normal;opacity:.6}
.rd-crumbs span{color:var(--rd-text)}
.rd-pd{display:grid;grid-template-columns:330px minmax(0,1fr) 300px;gap:34px;align-items:start;background:#fff;border:1px solid var(--rd-line);border-radius:12px;padding:28px}
.rd-pd-cover{position:relative;text-align:center}
.rd-pd-cover>img{width:100%;max-width:300px;box-shadow:0 22px 40px -22px rgba(30,15,10,.55);border-radius:2px}
.rd4 .rd-off-lg{top:42px;left:auto;right:6px;background:#d92d20;color:#fff;font-size:14px;padding:6px 9px}
.rd-peek{display:flex;justify-content:flex-end;margin-bottom:8px}
.rd4 .rd-peek .rongdhonu-readbtn{width:auto!important;margin:0!important;padding:0!important;font:600 19px var(--rd-serif)!important;color:var(--rd-orange)!important;background:none!important;border:0!important;cursor:pointer}
.rd4 .rd-peek .rongdhonu-readbtn span{color:#2f9e44}
.rd4 .rd-peek .rongdhonu-readbtn small{display:none}
.rd-pd-info h1{font-size:clamp(24px,2.4vw,30px);font-weight:600;margin-bottom:14px}
.rd-pd-meta{list-style:none;margin:0 0 16px;padding:0;display:grid;gap:6px;font-size:16px}
.rd-pd-meta span{color:var(--rd-ink)}
.rd-pd-meta a{color:var(--rd-red)}
.rd-pd-meta a:hover{text-decoration:underline}
.rd-pd-desc{position:relative;margin-bottom:18px}
.rd-pd-desc-in{font-size:16.5px;line-height:1.95;color:var(--rd-text);text-align:justify;max-height:12.5em;overflow:hidden;transition:max-height .3s}
.rd-pd-desc-in p{margin:0 0 .8em}
.rd-pd-desc:not(.open) .rd-pd-desc-in{-webkit-mask-image:linear-gradient(#000 70%,transparent);mask-image:linear-gradient(#000 70%,transparent)}
.rd-pd-desc.open .rd-pd-desc-in{max-height:none}
.rd4 .rd-more{background:none!important;border:0!important;padding:0!important;color:var(--rd-red)!important;font:500 15px var(--rd-sans)!important;cursor:pointer;box-shadow:none!important}
.rd-pd-price{display:flex;align-items:baseline;gap:12px}
.rd-pd-price s{font-size:22px;color:#9b928c}
.rd-pd-price b{font:600 32px var(--rd-serif);color:var(--rd-red)}
.rd-save{color:var(--rd-green);font-size:16px;margin:4px 0 18px}
.rd-buy{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:0 0 12px!important}
.rd-qty{display:flex;align-items:stretch;border:1px solid #ddd3ca;border-radius:6px;overflow:hidden;height:46px;background:#fff}
.rd4 .rd-qty button{width:38px;background:#faf7f3!important;border:0!important;color:var(--rd-ink)!important;font:500 20px/1 var(--rd-sans)!important;padding:0!important;cursor:pointer;box-shadow:none!important}
.rd4 .rd-qty input{width:46px;border:0!important;border-left:1px solid #eee5dc!important;border-right:1px solid #eee5dc!important;text-align:center;font:600 16px var(--rd-sans)!important;padding:0!important;margin:0;background:#fff!important;-moz-appearance:textfield;box-shadow:none!important;height:auto!important;min-height:0!important}
.rd4 .rd-qty input::-webkit-inner-spin-button,.rd4 .rd-qty input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}
.rd-buy .rd-btn{min-height:46px}
.rd-pd-info>.rd-btn-block{max-width:420px;min-height:48px}
.rd4 .rd-wishbtn{display:inline-flex;align-items:center;gap:8px;background:none!important;border:0!important;padding:14px 0 4px!important;color:var(--rd-text)!important;font:500 15px var(--rd-sans)!important;cursor:pointer;box-shadow:none!important}
.rd4 .rd-wishbtn.on{color:var(--rd-red)!important}.rd4 .rd-wishbtn.on path{fill:currentColor}
.rd-trust{list-style:none;margin:14px 0 0;padding:14px 0 0;border-top:1px dashed var(--rd-line);display:grid;gap:8px;font-size:14.5px;color:var(--rd-muted)}
.rd-trust li{display:flex;gap:10px;align-items:center}
.rd-trust .rd-i{color:var(--rd-green);width:18px;height:18px}
.rd-oos{color:#b42318;font-size:16px}
.rd-pd-side{display:grid;gap:16px}
.rd-side-box{border:1px solid var(--rd-line);border-radius:10px;padding:16px}
.rd-side-head{display:flex;justify-content:space-between;align-items:center;padding-bottom:10px;margin-bottom:12px;border-bottom:2px solid var(--rd-red)}
.rd-side-head b{font:600 17px var(--rd-serif);color:var(--rd-ink)}
.rd-side-head a{font-size:13.5px;color:var(--rd-red)}
.rd-mini{display:grid;grid-template-columns:62px 1fr;gap:12px;padding:10px;border:1px solid #f1ebe4;border-radius:8px;margin-bottom:10px}
.rd-mini:last-child{margin-bottom:0}
.rd-mini img{width:62px;aspect-ratio:2/3;object-fit:cover;border-radius:2px;display:block}
.rd-mini-t{font-weight:600;font-size:14.5px;line-height:1.35;color:var(--rd-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rd-mini small{display:block;font-size:12.5px;color:var(--rd-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rd-mini-p{font-size:14px;margin:3px 0 6px}
.rd-mini-p s{color:#a69d96}
.rd-mini-p b{color:var(--rd-red)}
.rd-mini-p em{font-style:normal;font-size:11.5px;color:var(--rd-green);background:#e8f6ee;border-radius:10px;padding:1px 6px;margin-left:4px}
.rd4 .rd-mini-add{display:inline-block;background:var(--rd-red)!important;color:#fff!important;border-radius:4px;padding:4px 10px;font-size:12.5px;font-weight:600}
.rd-side-help b{display:block;font:600 16px var(--rd-serif);color:var(--rd-ink);margin-bottom:12px}
.rd-side-help p{display:flex;gap:12px;margin:0 0 12px;font-size:14.5px;color:var(--rd-ink)}
.rd-side-help p .rd-i{color:#9b7b5e}
.rd-side-help small{display:block;font-size:12.5px;color:var(--rd-muted)}
.rd-side-call{display:flex;align-items:center;justify-content:center;gap:10px;border:1px solid var(--rd-line);border-radius:8px;padding:12px;font-weight:600;color:var(--rd-ink)}
.rd-specs{margin:26px 0 0;border:1px solid var(--rd-line);border-radius:12px;padding:24px 28px}
.rd-specs h2{font-size:22px;margin-bottom:14px}
.rd-specs table{width:100%;border-collapse:collapse;font-size:15.5px;margin:0;border:0}
.rd-specs th,.rd-specs td{padding:11px 14px;border:0!important;border-bottom:1px solid #f1ebe4!important;text-align:left;vertical-align:top;background:none}
.rd-specs th{width:200px;color:var(--rd-muted);font-weight:500}
.rd-specs tr:nth-child(odd) td,.rd-specs tr:nth-child(odd) th{background:#fcfaf7}
.rd-mbar{display:none}

/* ---------- সব বই / বিভাগ ---------- */
.rd-arch-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:16px;flex-wrap:wrap}
.rd-arch-head small{display:block;color:var(--rd-muted);font-size:14px}
.rd-arch-head h1{font-size:clamp(24px,2.6vw,32px);display:inline}
.rd-found{margin-left:10px;color:var(--rd-muted);font-size:14px}
.rd-sort label{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--rd-muted)}
.rd4 .rd-sort select{border:1px solid var(--rd-line)!important;border-radius:6px!important;padding:8px 12px!important;font:500 14.5px var(--rd-sans)!important;background:#fff!important;color:var(--rd-ink);height:auto!important;min-height:0!important}
.rd-chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;margin-bottom:24px;scrollbar-width:none}
.rd-chips::-webkit-scrollbar{display:none}
.rd-chips a{flex:none;border:1px solid var(--rd-line);border-radius:20px;padding:7px 15px;font-size:14.5px;color:var(--rd-text);background:#fff}
.rd-chips a:hover{border-color:var(--rd-red);color:var(--rd-red)}
.rd-chips a.on{background:var(--rd-red);border-color:var(--rd-red);color:#fff}
.rd-pages{display:flex;justify-content:center;gap:6px;margin:34px 0 10px}
.rd-pages a,.rd-pages span{min-width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--rd-line);border-radius:6px;font-size:15px;padding:0 10px}
.rd-pages .current{background:var(--rd-red);border-color:var(--rd-red);color:#fff}
.rd-empty{text-align:center;padding:60px 20px;color:var(--rd-muted)}
.rd-empty .rd-i{width:46px;height:46px;color:#c9b9ad}
.rd-empty p{font-size:16px;margin:12px 0 20px}

/* ---------- ট্যাবলেট ---------- */
@media (max-width:1180px){
  .rd-grid{grid-template-columns:repeat(5,minmax(0,1fr))}
  .rd-pd{grid-template-columns:280px minmax(0,1fr)}
  .rd-pd-side{grid-column:1/-1;grid-template-columns:1fr 1fr}
  .rd-links a:nth-child(n+6){display:none}
}
@media (max-width:980px){
  .rd-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
  .rd-top-note{display:none}
  .rd-foot-in{grid-template-columns:1fr 1fr}
  .rd-feats{grid-template-columns:1fr 1fr;row-gap:18px}
  .rd-feats div:nth-child(3){border-left:0;padding-left:0}
}

/* ---------- মোবাইল ---------- */
@media (max-width:860px){
  body.rd4{padding-bottom:64px!important}
  .rd4 .rd-wrap{padding:0 14px}
  .rd4-top,.rd4-nav{display:none}
  .rd-head-in{min-height:58px;gap:6px}
  .rd4 .rd-burger{display:inline-grid!important;margin-left:-8px}
  .rd-logo{position:absolute;left:50%;transform:translateX(-50%)}
  .rd-logo img{height:42px}
  .rd4-head .rd-search,.rd-acc span,.rd-hide-m{display:none!important}
  .rd-acc{border:0;padding:0;width:40px;height:40px;justify-content:center}
  .rd-head-icons{gap:2px}
  .rd4 .rd-head-icons .rd-iconbtn{width:40px;height:40px}
  .rd4-msearch{display:block;background:#fff;padding:8px 0 10px;border-bottom:1px solid var(--rd-line);position:sticky;top:58px;z-index:899}
  .admin-bar .rd4-msearch{top:104px}
  .rd4 .rd-search-m{max-width:none;padding:0 0 0 12px!important;background:#fff!important;border:1px solid #ddd3ca!important;border-radius:6px!important;overflow:visible}
  .rd4 .rd-search-m input[type=search]{padding:11px 4px!important;font-size:15px!important}
  .rd4 .rd-search-m button[type=submit]:not(.ns-all){height:44px!important;width:48px!important;padding:0!important;border-radius:0 5px 5px 0!important;justify-content:center;margin:-1px -1px -1px 0}
  .rd4 .rd-search-m button .rd-i{width:20px;height:20px}

  .rd4-dock{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:950;background:#fff;border-top:1px solid var(--rd-line);padding-bottom:env(safe-area-inset-bottom);box-shadow:0 -6px 20px -14px rgba(0,0,0,.35)}
  .rd4 .rd4-dock>a,.rd4 .rd4-dock>button{position:relative;display:flex!important;flex-direction:column;align-items:center;justify-content:center;gap:2px;height:60px;background:none!important;border:0!important;color:var(--rd-ink)!important;font:500 12.5px var(--rd-sans)!important;padding:0!important;cursor:pointer;box-shadow:none!important}
  .rd4-dock .rd-i{width:23px;height:23px}
  .rd4-dock .on{color:var(--rd-red)!important}
  .rd4-dock .rd-count,.rd4-dock .rd-wcount{top:6px;right:calc(50% - 22px)}

  .rd-hero{padding:14px 0 0}
  .rd-slider{border-radius:10px}
  .rd-slides{align-items:flex-start;transition:transform .55s cubic-bezier(.4,.1,.2,1),height .3s}
  .rd-slide-img{aspect-ratio:1240/472}
  .rd-slide-img img{object-fit:cover}
  .rd4 .rd-slider-ctl button{display:none!important}
  .rd-slide-txt{grid-template-columns:1fr;aspect-ratio:auto;padding:24px 18px 56px;gap:4px}
  .rd-slide-copy h2{font-size:25px;margin:10px 0 6px}
  .rd-slide-copy p{font-size:15px;margin-bottom:16px}
  .rd-stats{margin-top:18px;gap:16px}.rd-stats div+div{padding-left:16px}
  .rd-stats b{font-size:18px}
  .rd-fan{display:none}
  .rd-slider-ctl{left:50%;transform:translateX(-50%);bottom:8px}
  .rd-slide-img:only-child~.rd-slider-ctl{display:none}

  .rd-sec{padding:24px 0 4px}
  .rd-sec-head{margin-bottom:14px}
  .rd-sec-head small{font-size:12.5px}
  .rd-sec-head h2{font-size:21px}
  .rd-sec-head>a{font-size:13.5px;padding-bottom:3px}
  .rd-catgrid{display:flex;overflow-x:auto;gap:10px;scrollbar-width:none;margin:0 -14px;padding:0 14px 4px}
  .rd-catgrid::-webkit-scrollbar{display:none}
  .rd-cat{flex:0 0 112px;padding:14px 6px 12px}
  .rd-cat-ic{width:52px;height:52px}
  .rd-cat-ic .rd-i{width:23px;height:23px}
  .rd-cat b{font-size:14px;line-height:1.35}
  .rd-cat small{font-size:12px}

  .rd-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 12px}
  .rd-row{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;margin:0 -14px;padding:0 14px 6px;gap:12px}
  .rd-row::-webkit-scrollbar{display:none}
  .rd-row .rd-card{flex:0 0 44%;scroll-snap-align:start}
  .rd-name{font-size:15.5px!important}
  .rd-by{font-size:13px}
  .rd-price b{font-size:18px}
  .rd-price s{font-size:13px}
  .rd-acts .rd-btn{min-height:38px;font-size:13px!important;padding:0 6px!important;gap:5px}
  .rd-acts .rd-btn .rd-i{width:15px;height:15px}
  .rd-offer-box{padding:18px 14px 20px;border-radius:12px}
  .rd-offer-head{gap:12px}
  .rd-offer-head .rd-btn{display:none!important}
  .rd-clock span{min-width:50px;height:54px}
  .rd-clock b{font-size:19px}
  .rd-authors{display:flex;overflow-x:auto;scrollbar-width:none;margin:0 -14px;padding:0 14px 4px}
  .rd-authors a{flex:0 0 128px}

  .rd-quote{flex-direction:column;align-items:flex-start;gap:8px;padding:22px 20px}
  .rd-q{display:none}
  .rd-quote h3{font-size:20px}
  .rd-feats{grid-template-columns:1fr 1fr;margin-top:22px}
  .rd-feats div{padding:4px 10px}
  .rd-feats div:nth-child(odd){border-left:0;padding-left:0}
  .rd-feats b{font-size:14.5px}.rd-feats span{font-size:12.5px}
  .rd-feats .rd-i{width:20px;height:20px}
  .rd-foot-in{grid-template-columns:1fr;gap:26px;padding:30px 14px}
  .rd-foot-brand img{height:60px}
  .rd-foot-col{gap:9px}

  .rd-pop{align-items:end;padding:0}
  .rd-pop-in{grid-template-columns:1fr;border-radius:18px 18px 0 0;max-height:92vh;overflow-y:auto}
  .rd-pop-l{flex-direction:row;padding:16px 18px;gap:12px}
  .rd-pop-fan{display:none}
  .rd-pop-l b{font-size:18px}.rd-pop-l span{font-size:14px}
  .rd-pop-r{padding:22px 18px 22px}
  .rd-pop-r h3{font-size:24px}
  .rd4 .rd-pop-x{top:8px;right:10px;width:36px;height:36px}
  .rd-pop-l span{display:none}

  /* বইয়ের পেজ: সমকালীনের মতো */
  .rd-crumbs{padding:12px 0;font-size:13px}
  .rd-crumbs span{display:none}
  .rd-pd{grid-template-columns:1fr;gap:18px;padding:16px 14px;border-radius:10px}
  .rd-pd-cover>img{max-width:290px}
  .rd4 .rd-off-lg{right:calc(50% - 140px)}
  .rd-pd-info h1{font-size:24px}
  .rd-pd-meta{font-size:15px}
  .rd-pd-desc-in{font-size:15.5px}
  .rd-pd-price b{font-size:28px}
  .rd-pd-side{grid-template-columns:1fr}
  .rd-specs{padding:16px 14px}
  .rd-specs th{width:120px}
  .rd-specs th,.rd-specs td{padding:9px 8px;font-size:14.5px}
  body.rd4-product{padding-bottom:128px!important}
  .rd-mbar{display:flex;gap:10px;position:fixed;left:0;right:0;bottom:calc(60px + env(safe-area-inset-bottom));z-index:940;background:#fff;border-top:1px solid var(--rd-line);padding:8px 14px;box-shadow:0 -8px 20px -16px rgba(0,0,0,.4)}
  .rd-mbar .rd-btn{flex:1;min-height:44px}
  .rd-qty-s{height:44px}
  .rd4 .rd-qty-s button{width:34px}
  .rd4 .rd-qty-s input{width:38px}

  .rd-arch-head h1{font-size:23px}
  .rd-chips{margin:0 -14px 18px;padding:0 14px 4px}
}
@media (max-width:380px){
  .rd-acts .rd-btn span{font-size:12.5px}
  .rd-row .rd-card{flex-basis:48%}
}