*{margin:0;padding:0;box-sizing:border-box}

/* ── FONTS ── */
@font-face{font-family:'Noto Serif Bengali';font-weight:400;src:url('../shared/assets/fonts/NotoSerifBengali-Regular.woff2') format('woff2');font-display:swap}
@font-face{font-family:'Noto Serif Bengali';font-weight:700;src:url('../shared/assets/fonts/NotoSerifBengali-Bold.woff2') format('woff2');font-display:swap}
@font-face{font-family:'Hind Siliguri';font-weight:400;src:url('../shared/assets/fonts/HindSiliguri-Regular.woff2') format('woff2');font-display:swap}
@font-face{font-family:'Hind Siliguri';font-weight:700;src:url('../shared/assets/fonts/HindSiliguri-Bold.woff2') format('woff2');font-display:swap}
:root{
  --teal:#0D5C63;--teal-dark:#083E44;--teal-mid:#1A7A82;--teal-light:#2EA8B2;
  --amber:#E8A020;--amber-light:#F5BE55;
  --ink:#06101100;--ink:#06100F;
  --surface:#F0F9F8;--surface-dark:#D8EFEC;
  --white:#FFFFFF;--text:#162526;--muted:#4A6A6D;
  --red:#B93020;--green:#1E7B45;
  --r:6px;--rl:12px;
  --primary-border: rgba(13,92,99,0.18);
}
body{font-family:'Hind Siliguri',sans-serif;background:var(--surface);color:var(--text);font-size:16px;line-height:1.7;overflow-x:hidden}

/* ── COUNTDOWN ── */
.cd-bar{background:#051213;color:rgba(255,255,255,0.6);text-align:center;padding:10px 16px;font-size:13px;display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap}
.cd-timer{display:inline-flex;align-items:center;gap:4px}
.cd-box{background:var(--teal);color:#fff;border-radius:4px;padding:2px 9px;font-size:15px;font-weight:700;min-width:36px;text-align:center;font-variant-numeric:tabular-nums}
.cd-sep{color:rgba(255,255,255,0.28)}

/* ── NAV ── */
nav{background:var(--ink);position:sticky;top:0;z-index:200;box-shadow:0 2px 20px rgba(0,0,0,0.5);width:100%}
.nav-container{max-width:1200px;margin:0 auto;padding:16px 24px;display:flex;align-items:center;justify-content:space-between}
.nav-brand{text-decoration:none;flex:1}
.nav-brand-text{font-family:'Noto Serif Bengali',serif;color:var(--amber-light);font-size:28px;font-weight:700;line-height:1.15}
.nav-brand-text small{display:block;font-size:18px;color:rgb(255, 255, 255);font-family:'Noto Serif Bengali',serif;font-weight:400}
.nav-menu{display:flex;align-items:center;gap:24px}
@media(max-width:768px){.nav-menu{display:none}}
.nav-link{color:rgba(255,255,255,0.8);text-decoration:none;font-weight:500;font-size:15px;transition:color .2s}
.nav-link:hover{color:var(--amber-light)}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:20px}
@media(min-width:600px){.nav-phone{display:block}}
.nav-cta{background:var(--amber);color:var(--ink);padding:10px 20px;border-radius:var(--r);font-weight:700;font-size:15px;text-decoration:none;white-space:nowrap;transition:background .2s}
.nav-cta:hover{background:var(--amber-light)}

/* ── HERO ── */
.hero{background:linear-gradient(135deg,var(--teal-dark),var(--ink));color:var(--white);padding:100px 20px;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');opacity:.3}
.hero-content{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.hero-left{text-align:left}
.hero-right{text-align:center}
.hero-pill{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);padding:8px 20px;border-radius:20px;font-size:13px;font-weight:600;letter-spacing:.5px;text-transform:uppercase;display:inline-block;margin-bottom:20px}
.offer-timer{background:linear-gradient(135deg,rgba(232,160,32,.2),rgba(232,160,32,.1));border:1px solid rgba(232,160,32,.3);border-radius:10px;padding:12px 16px;margin-bottom:20px;display:flex;align-items:center;justify-content:space-between;box-shadow:0 3px 15px rgba(232,160,32,.12)}
.offer-label{font-size:14px;font-weight:700;color:var(--amber-light);display:flex;align-items:center;gap:8px}
.timer-display{display:flex;align-items:center;gap:12px}
.timer-text{font-size:13px;color:rgba(255,255,255,.8);font-weight:500}
.timer-boxes{display:flex;align-items:center;gap:4px}
.timer-box{background:rgba(0,0,0,.3);color:var(--white);font-family:'Hind Siliguri',sans-serif;font-size:16px;font-weight:700;padding:6px 10px;border-radius:6px;min-width:32px;text-align:center}
.timer-sep{color:rgba(255,255,255,.6);font-size:16px;font-weight:700;margin:0 2px}
.hero-hook{font-size:20px;line-height:1.7;color:rgba(255,255,255,.9);margin-bottom:30px}
.hero-hook strong{color:var(--amber-light)}
.hero h1{font-family:'Noto Serif Bengali',serif;font-size:clamp(36px,4vw,52px);font-weight:700;line-height:1.2;margin-bottom:20px}
.hero h1 em{color:var(--amber-light);font-style:normal}
.hero-sub{font-size:18px;color:rgba(255,255,255,.8);margin-bottom:40px;line-height:1.6}
.hero-duo{display:flex;justify-content:center;gap:30px;margin:40px 0;position:relative}
.hd-book{text-align:center;position:relative}
.hd-book img{width:180px;height:270px;object-fit:cover;border-radius:12px;box-shadow:0 20px 50px rgba(0,0,0,.6);transition:transform .3s}
.hd-book:hover img{transform:translateY(-12px)}
.hd-icon{position:absolute;bottom:-15px;left:50%;transform:translateX(-50%);background:var(--amber);color:var(--ink);width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;box-shadow:0 4px 12px rgba(232,160,32,.4);z-index:3}

/* Hero responsive */
@media(max-width:768px){
  .hero{padding:60px 20px}
  .hero-content{grid-template-columns:1fr;gap:40px;text-align:center}
  .hero-left{text-align:center}
  .hero-right{text-align:center}
  .hero-duo{gap:20px}
  .hd-book img{width:140px;height:auto;max-height:210px;object-fit:contain}
  .hd-icon{width:35px;height:35px;font-size:18px;bottom:-12px}
  .offer-timer{flex-direction:column;gap:10px;padding:10px 14px}
  .timer-display{gap:8px}
  .hero-price-wrap{justify-content:center !important}
  .timer-box{font-size:14px;padding:4px 8px;min-width:28px}
  .timer-sep{font-size:14px}
  .hero-btn{justify-content:center;margin:0 auto !important}
  .hero-trust{justify-content:center !important}
}

/* Hero price */
.hero-price-wrap{display:flex;align-items:stretch;justify-content:center;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.hpw-box{background:rgba(255,255,255,.05);border:1px solid rgba(232,160,32,.2);border-radius:var(--rl);padding:16px 24px;display:flex;flex-direction:column;align-items:center}
.hpw-label{font-size:11px;color:rgba(255,255,255,.35);letter-spacing:.6px;margin-bottom:4px}
.hpw-price{font-family:'Noto Serif Bengali',serif;color:var(--amber-light);font-size:36px;font-weight:700;line-height:1}
.hpw-sub{font-size:11px;color:rgba(255,255,255,.28);margin-top:3px}
.hpw-or{display:flex;align-items:center;color:rgba(255,255,255,.25);font-size:13px;align-self:center}

.hero-btn{display:flex;align-items:center;justify-content:center;gap:8px;background:var(--amber);color:var(--ink);font-size:16px;font-weight:700;font-family:'Hind Siliguri',sans-serif;padding:14px 32px;border-radius:var(--r);text-decoration:none;box-shadow:0 6px 28px rgba(232,160,32,.38);transition:all .2s;width:100%;max-width:280px;margin:0}
.hero-btn:hover{background:var(--amber-light);transform:translateY(-2px)}
.hero-btn-sub{color:rgba(255,255,255,.28);font-size:12px;margin-top:9px}

.hero-trust{display:flex;flex-wrap:wrap;justify-content:flex-start;gap:14px;margin-top:26px}
.ht{color:rgba(255,255,255,.36);font-size:12px;display:flex;align-items:center;gap:5px}
.ht b{color:var(--teal-light)}

/* ── SHARED ── */
section{padding:52px 20px}
.container{max-width:880px;margin:0 auto}
.sec-label{font-size:11px;font-weight:700;letter-spacing:1.8px;text-transform:uppercase;color:var(--teal);margin-bottom:8px}
.sec-title{font-family:'Noto Serif Bengali',serif;font-size:clamp(20px,4vw,31px);font-weight:700;color:var(--ink);line-height:1.3;margin-bottom:10px}
.sec-sub{color:var(--muted);font-size:15px;max-width:540px;margin-bottom:32px;line-height:1.78}
.divider{width:40px;height:3px;background:var(--amber);border-radius:2px;margin-bottom:18px}

/* ── PROBLEM ── */
.prob-sec{background:var(--white)}
.prob-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:24px}
@media(max-width:580px){.prob-grid{grid-template-columns:1fr}}
.prob-card{background:var(--surface);border:1px solid rgba(185,48,32,.12);border-radius:var(--rl);padding:18px 16px;border-left:3px solid var(--red)}
.prob-card h4{font-family:'Noto Serif Bengali',serif;font-size:16px;font-weight:700;color:var(--ink);margin-bottom:7px}
.prob-card p{font-size:14px;color:var(--muted);line-height:1.7}
.prob-bridge{background:linear-gradient(135deg,rgba(13,92,99,.07),rgba(13,92,99,.03));border:1px solid rgba(13,92,99,.14);border-radius:var(--rl);padding:18px 22px;text-align:center}
.prob-bridge p{font-size:16px;color:var(--teal-dark);font-weight:600;font-family:'Noto Serif Bengali',serif;line-height:1.55}

/* ── PRIMARY BOOKS ── */
.primary-sec{background:var(--surface)}
.primary-header{background:var(--teal-dark);color:var(--white);text-align:center;padding:14px 20px;border-radius:var(--rl) var(--rl) 0 0;margin-bottom:0}
.primary-header p{font-size:13px;color:rgba(255,255,255,.6);margin-top:3px}

.book-card{background:var(--white);border:1px solid var(--primary-border);border-radius:var(--rl);padding:20px;margin-bottom:16px;position:relative}
.book-card.selected::before{content:'✓';position:absolute;top:10px;left:10px;background:var(--teal);color:var(--white);width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;z-index:10}
.book-card:not(.selected)::before{display:none}
.book-card.selected::before{display:none}
.book-card.upsell{padding:16px}
.book-card-inner{display:flex;flex-direction:column;gap:16px;align-items:flex-start;text-align:center}
.upsell-grid .book-card-inner{display:flex;flex-direction:row;gap:12px;align-items:flex-start;text-align:center}
.bk-img-col{flex-shrink:0;width:128px}
.upsell-grid .bk-img-col{width:100px}
.bk-img{width:100%;border-radius:4px;box-shadow:0 8px 24px rgba(0,0,0,.15);display:block}

/* checkbox toggle */
.book-select-row{background:linear-gradient(135deg,rgba(13,92,99,.03),rgba(13,92,99,.01));border-top:1px solid rgba(13,92,99,.08);padding:10px 16px;display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;border-radius:0 0 var(--rl) var(--rl);transition:background .2s;flex-direction:row-reverse}
.book-select-row:hover{background:linear-gradient(135deg,rgba(13,92,99,.06),rgba(13,92,99,.02))}
.book-select-row.pre{background:linear-gradient(135deg,rgba(13,92,99,.08),rgba(13,92,99,.04));border-top:2px solid var(--teal)}
.chk-label{display:flex;align-items:center;gap:10px;cursor:pointer;font-size:14px;font-weight:600;color:var(--teal-dark);user-select:none;transition:all .3s ease;background:var(--white);border:2px solid var(--teal);border-radius:25px;padding:10px 18px;position:relative;box-shadow:0 2px 8px rgba(13,92,99,0.15);min-width:120px;justify-content:center}
.chk-label:hover{color:var(--teal);border-color:var(--teal-mid);box-shadow:0 4px 12px rgba(13,92,99,0.25);transform:translateY(-1px)}
.chk-label input[type=checkbox]{width:18px;height:18px;accent-color:var(--amber);cursor:pointer;flex-shrink:0;border-radius:4px;transition:all .3s ease;position:relative;z-index:2}
.chk-label input[type=checkbox]:hover{transform:scale(1.1)}
.chk-label input[type=checkbox]:checked{accent-color:var(--green)}
.chk-text{font-weight:700;transition:all .3s ease;position:relative;z-index:1}
.chk-label:has(input:checked) .chk-text{color:var(--green)}
.chk-label:has(input:checked){background:linear-gradient(135deg, rgba(30,123,69,0.08), rgba(30,123,69,0.03));border-color:var(--green);box-shadow:0 4px 12px rgba(30,123,69,0.2)}
.chk-label.locked{cursor:default;color:var(--muted);opacity:.7}
.chk-note{font-size:11px;color:var(--muted)}
.chk-price{font-family:'Noto Serif Bengali',serif;font-size:16px;font-weight:700;color:var(--teal);white-space:nowrap;background:rgba(13,92,99,.05);padding:4px 10px;border-radius:5px;border:1px solid rgba(13,92,99,.1)}
.chk-price del{color:var(--muted);font-weight:400;font-size:12px;margin-right:4px;opacity:.7}

.book-card h3{font-family:'Noto Serif Bengali',serif;font-size:19px;font-weight:700;color:var(--ink);margin-bottom:2px;line-height:1.3;text-align:left}
.book-card h3 small{display:block;font-size:13px;font-weight:500;color:var(--muted);margin-top:2px;font-family:'Hind Siliguri',sans-serif;text-align:left}
.book-meta{font-size:13px;color:var(--muted);margin-bottom:10px;text-align:left}
.book-hook{background:rgba(13,92,99,.06);border-left:3px solid var(--teal);border-radius:0 var(--r) var(--r) 0;padding:9px 14px;font-size:14px;color:var(--teal-dark);font-weight:500;margin-bottom:11px;line-height:1.65;text-align:left}
.book-card p.desc{font-size:14px;color:var(--text);line-height:1.8;margin-bottom:11px;text-align:left}
.upsell-grid h3{font-size:14px;margin-bottom:1px;line-height:1.2;background:rgba(13,92,99,.05);padding:8px 12px;margin:-12px -12px 8px -12px;border-radius:6px;text-align:left}
.upsell-grid h3 small{font-size:12px;display:block;text-align:left}
.upsell-grid .desc{font-family:'Noto Serif Bengali',serif;font-size:13px;line-height:1.0;margin-bottom:8px;text-align:left}
.upsell-grid .book-hook{display:none}
.tags{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-start}
/* Desktop-specific tags alignment */
@media(min-width:769px) {
  .tags { justify-content: flex-start !important; }
}
.upsell-grid .tags{justify-content:flex-start}

/* Mobile text alignment fix */
@media(max-width:768px){
  .book-card h3{text-align:center}
  .book-card h3 small{text-align:center}
  .book-meta{text-align:center}
  .book-hook{text-align:center}
  .book-card p.desc{text-align:center}
  .upsell-grid h3{text-align:center}
  .upsell-grid h3 small{text-align:center}
  .upsell-grid .desc{text-align:center}
  .upsell-grid .book-hook{display:none}
  .upsell-grid .tags{justify-content:center}
}
.upsell-grid .desc{font-family:'Noto Serif Bengali',serif;font-size:13px;line-height:1.0;margin-bottom:8px;text-align:center}
.upsell-grid .book-hook{display:none}
.tags{display:flex;flex-wrap:wrap;gap:6px;justify-content:center}
.upsell-grid .tags{justify-content:center}
.tag{background:var(--surface-dark);border:1px solid rgba(13,92,99,.1);color:var(--muted);font-size:11px;padding:3px 9px;border-radius:20px}

/* Upsell section */
.upsell-header{display:flex;align-items:center;gap:12px;margin:32px 0 14px}
.upsell-header::before,.upsell-header::after{content:'';flex:1;height:1px;background:var(--primary-border)}
.upsell-header span{font-size:13px;font-weight:700;color:var(--muted);white-space:nowrap;letter-spacing:.5px;text-transform:uppercase}
.upsell-note{background:linear-gradient(135deg,rgba(13,92,99,.07),rgba(13,92,99,.03));border:1px solid rgba(13,92,99,.14);border-radius:var(--rl);padding:18px 22px;text-align:center;margin-bottom:24px}
.upsell-note p{font-size:16px;color:var(--teal-dark);font-weight:600;font-family:'Noto Serif Bengali',serif;line-height:1.55;margin-bottom:8px}
.upsell-note span{display:block;font-size:13px;color:var(--muted);margin-top:4px}
.upsell-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin-bottom:24px}
@media(max-width:768px){.upsell-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.upsell-grid{grid-template-columns:repeat(2,1fr)}}

/* Enhanced Mobile Optimizations */
@media(max-width:768px){
  .upsell-header span{font-size:16px;padding:12px 20px}
  .upsell-note{padding:14px 18px;margin-bottom:20px}
  .upsell-note p{font-size:15px}
  .upsell-note span{font-size:12px}
  
  .book-card.upsell{padding:16px;width:100%;max-width:100%;box-sizing:border-box}
  .book-card-inner{gap:16px;align-items:stretch}
  .upsell-grid .book-card-inner{flex-direction:row;gap:12px;align-items:stretch}
  .bk-img-col{width:120px;flex-shrink:0}
  .upsell-grid .bk-img-col{width:100px;flex-shrink:0}
  .bk-img{height:160px;width:100%;object-fit:contain}
  
  .book-card-content{flex:1;display:flex;flex-direction:column;justify-content:center}
  
  .upsell-grid h3{font-size:15px;padding:0 0 8px 0;margin:0;text-align:center}
  .upsell-grid h3 small{font-size:11px;display:block;margin-top:2px}
  .upsell-grid .desc{font-size:12px;line-height:1.4;margin-bottom:8px;text-align:center}
  .tags{justify-content:center;gap:4px;margin-top:auto}
  .tag{font-size:10px;padding:2px 6px}
  
  .book-select-row{padding:10px 16px;margin-top:12px;width:100%;box-sizing:border-box}
  .chk-label{font-size:14px;padding:8px 12px;min-height:44px;display:flex;align-items:center}
  .chk-price{font-size:14px;padding:3px 8px}
  .chk-price del{font-size:11px}
}

@media(max-width:480px){
  .upsell-header span{font-size:15px;padding:10px 16px}
  .upsell-note{padding:12px 16px;margin-bottom:16px}
  .upsell-note p{font-size:14px;line-height:1.6}
  .upsell-note span{font-size:11px;line-height:1.5}
  
  .book-card.upsell{padding:14px;width:100%;max-width:100%;box-sizing:border-box}
  .book-card-inner{flex-direction:column;gap:12px;align-items:center}
  .upsell-grid .book-card-inner{flex-direction:column;gap:12px;text-align:center;width:100%}
  .bk-img-col{width:100%;max-width:120px;margin:0 auto}
  .bk-img{height:140px;width:100%;object-fit:contain;border-radius:6px}
  
  .book-card-content{width:100%;text-align:center;margin-top:8px}
  
  .upsell-grid h3{font-size:16px;padding:0;margin:0 0 8px 0;text-align:center}
  .upsell-grid h3 small{font-size:12px;display:block;margin-top:4px}
  .upsell-grid .desc{font-size:13px;line-height:1.5;margin-bottom:10px;text-align:center}
  .tags{justify-content:center;gap:6px;margin-top:8px}
  .tag{font-size:11px;padding:3px 8px}
  
  .book-select-row{flex-direction:column;gap:10px;padding:12px;margin-top:12px;width:100%;box-sizing:border-box;align-items:center}
  .chk-label{width:100%;justify-content:center;font-size:15px;padding:12px;min-height:48px}
  .chk-price{align-self:center;font-size:15px;padding:4px 10px}
  .chk-price del{font-size:12px}
}

/* Specific optimizations for Book 3 and similar cards */
@media(max-width:480px){
  #bc3 .bk-img-col,
  #bc4 .bk-img-col,
  #bc5 .bk-img-col,
  #bc6 .bk-img-col,
  #bc7 .bk-img-col,
  #bc8 .bk-img-col {
    order: -1;
  }
  
  #bc3 .bk-img,
  #bc4 .bk-img,
  #bc5 .bk-img,
  #bc6 .bk-img,
  #bc7 .bk-img,
  #bc8 .bk-img {
    height: 140px;
    object-fit: cover;
    border-radius: 6px;
  }
  
  #bc3 .desc,
  #bc4 .desc,
  #bc5 .desc,
  #bc6 .desc,
  #bc7 .desc,
  #bc8 .desc {
    font-size: 12px;
    line-height: 1.4;
    margin-bottom: 10px;
    text-align: center;
    color: var(--muted);
  }
  
  #bc3 .tags,
  #bc4 .tags,
  #bc5 .tags,
  #bc6 .tags,
  #bc7 .tags,
  #bc8 .tags {
    margin-bottom: 12px;
  }
  
  #bc3 .tag,
  #bc4 .tag,
  #bc5 .tag,
  #bc6 .tag,
  #bc7 .tag,
  #bc8 .tag {
    font-size: 10px;
    padding: 2px 6px;
    background: var(--surface);
    border: 1px solid var(--primary-border);
  }
}

/* ── WHAT YOU LEARN ── */
.learn-sec{background:var(--white)}
.learn-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:580px){.learn-grid{grid-template-columns:1fr}}
.learn-col{background:var(--surface);border:1px solid var(--primary-border);border-radius:var(--rl);padding:22px 18px}
.learn-col h4{font-family:'Noto Serif Bengali',serif;font-size:16px;font-weight:700;color:var(--teal-dark);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.li{display:flex;align-items:flex-start;gap:9px;margin-bottom:10px;font-size:14px;color:var(--text);line-height:1.65}
.li:last-child{margin:0}
.li-ck{color:var(--teal);font-size:14px;flex-shrink:0;margin-top:3px}

/* ── REVIEWS ── */
.reviews-sec{background:var(--surface)}
.rev-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.rev-card{background:var(--white);border-radius:var(--rl);padding:20px;border:1px solid var(--primary-border);border-top:3px solid var(--teal-light)}
.rev-stars{color:var(--amber);font-size:16px;letter-spacing:2px;margin-bottom:7px}
.rev-book{display:inline-block;background:var(--teal);color:#fff;font-size:10px;font-weight:700;padding:2px 10px;border-radius:20px;margin-bottom:9px}
.rev-card blockquote{font-size:14px;color:var(--text);line-height:1.8;margin-bottom:12px;font-style:italic;padding-left:11px;border-left:2px solid var(--surface-dark)}
.rev-author{font-size:12px;font-weight:600;color:var(--muted)}
.rev-author .n{color:var(--ink)}
.ver{background:#e8f5e9;color:#2e7d32;font-size:10px;font-weight:600;padding:1px 7px;border-radius:10px;margin-left:5px}

.stat-row{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;margin-top:32px;padding:24px;background:var(--white);border-radius:var(--rl);border:1px solid var(--primary-border);box-shadow:0 4px 20px rgba(0,0,0,.08)}
.stat{display:flex;flex-direction:column;align-items:center;gap:10px;min-width:120px;padding:16px;border-radius:12px;background:linear-gradient(135deg,rgba(13,92,99,.03),rgba(13,92,99,.01));border:1px solid rgba(13,92,99,.1);transition:transform .2s,box-shadow .2s}
.stat:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(13,92,99,.15)}
.stat.highlight{background:linear-gradient(135deg,rgba(232,160,32,.15),rgba(232,160,32,.05));border:1px solid rgba(232,160,32,.3);border-radius:12px;padding:16px;box-shadow:0 4px 16px rgba(232,160,32,.2)}
.stat.highlight:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(232,160,32,.3)}
.stat-n{font-family:'Noto Serif Bengali',serif;font-size:28px;font-weight:700;color:var(--teal);line-height:1}
.stat-l{font-size:12px;color:var(--muted);text-align:center;font-weight:500}
.stat.highlight .stat-n{color:var(--amber-light);font-size:32px}
.stat.highlight .stat-l{color:var(--amber);font-weight:600}

/* ── ORDER ── */
.order-sec{background:var(--surface-dark)}
.order-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
@media(max-width:680px){.order-grid{grid-template-columns:1fr}}
.order-summary{background:var(--white);border:1px solid rgba(13,92,99,.15);border-radius:var(--rl);padding:22px;position:sticky;top:80px}
.order-summary h3{font-family:'Noto Serif Bengali',serif;font-size:17px;font-weight:700;color:var(--ink);margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--surface-dark)}
.si{display:flex;justify-content:space-between;align-items:center;padding:7px 0;font-size:14px;border-bottom:1px dashed var(--surface-dark);gap:8px}
.si:last-of-type{border:none}
.si-n{color:var(--muted);flex:1}
.si-p{font-weight:600;color:var(--ink);white-space:nowrap}
.si.dimmed .si-n,.si.dimmed .si-p{color:rgba(0,0,0,0.25);text-decoration:line-through}
.saving-box{background:#e0f7f4;color:var(--teal-dark);font-size:13px;font-weight:700;padding:9px 12px;border-radius:var(--r);margin:10px 0;text-align:center}
.total-row{display:flex;justify-content:space-between;align-items:center;margin-top:12px;padding-top:12px;border-top:2px solid var(--amber);font-size:19px;font-weight:700;color:var(--ink)}
.total-row span:last-child{color:var(--teal)}
.contact-box{margin-top:14px;background:var(--surface);border-radius:var(--r);padding:12px;font-size:12px;color:var(--muted);line-height:1.8}
.contact-box b{color:var(--ink)}
.form-group{margin-bottom:13px}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin-bottom:5px}
.form-group input,.form-group textarea,.form-group select{width:100%;border:1.5px solid var(--surface-dark);border-radius:var(--r);padding:10px 13px;font-size:15px;font-family:'Noto Sans Bengali',sans-serif;background:var(--white);color:var(--ink);outline:none;transition:border-color .2s}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--teal-light)}
.form-group textarea{resize:vertical;min-height:72px}
.submit-btn{width:100%;background:var(--teal);color:#fff;font-size:16px;font-weight:700;font-family:'Noto Sans Bengali',sans-serif;padding:15px;border:none;border-radius:var(--r);cursor:pointer;transition:all .2s;margin-top:4px}
.submit-btn:hover{background:var(--teal-dark);transform:translateY(-1px)}
.form-note{text-align:center;font-size:12px;color:var(--muted);margin-top:8px;line-height:1.7}

/* ── FAQ ── */
.faq-sec{background:var(--white)}
.faq-item{border-bottom:1px solid var(--surface-dark)}
.faq-item:last-child{border:none}
.faq-q{font-family:'Noto Serif Bengali',serif;font-size:16px;font-weight:700;color:var(--ink);padding:17px 0;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px;user-select:none}
.faq-icon{font-size:18px;color:var(--teal);flex-shrink:0}
.faq-a{font-size:14px;color:var(--muted);line-height:1.75;max-height:0;overflow:hidden;transition:max-height .35s ease,padding-bottom .25s}
.faq-a.open{max-height:300px;padding-bottom:16px}

/* WA float */
.wa-float{position:fixed;bottom:24px;right:20px;z-index:500;background:#25D366;color:#fff;width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px;box-shadow:0 4px 18px rgba(37,211,102,.42);text-decoration:none;transition:transform .2s}
.wa-float:hover{transform:scale(1.1)}

footer{background:var(--ink);color:rgba(255,255,255,.4);text-align:center;padding:30px 20px;font-size:13px;line-height:1.9}
footer a{color:var(--amber-light);text-decoration:none}
footer .footer-logo{font-family:'Noto Serif Bengali',serif;font-size:19px;color:var(--amber-light);font-weight:700;margin-bottom:5px}

/* Cart Button */
.cart-btn{background:var(--teal-dark);color:var(--white);border:none;border-radius:var(--rl);padding:8px 12px;cursor:pointer;font-size:13px;font-weight:600;display:flex;align-items:center;gap:6px;transition:all .2s}
.cart-btn:hover{background:var(--teal);transform:translateY(-2px)}
.cart-label{font-family:'Hind Siliguri',sans-serif}
.cart-count{background:var(--amber);color:var(--white);font-size:10px;font-weight:700;padding:2px 6px;border-radius:10px;min-width:20px;text-align:center}
/* Check mark - only show when card has selected class */
.book-card::before{content:'✓';position:absolute;top:10px;left:10px;background:var(--teal);color:var(--white);width:24px;height:24px;border-radius:50%;display:none;align-items:center;justify-content:center;font-size:14px;font-weight:700;z-index:10}
.book-card.selected::before{display:flex;align-items:center;justify-content:center}