:root{
  --red: #f0483e;
  --red-dark: #e0392f;
  --green: #12805c;
  --green-text: #158552;
  --black: #111111;
  --ink: #222222;
  --muted: #6b7280;
  --label-blue: #33455c;
  --border: #e5e7eb;
  --panel-bg: #f0f0f0;
  --row-bg: #f5f5f5;
  --radius: 10px;
  --max-w: 605px;
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
body{
  font-family:'Noto Serif Bengali','Hind Siliguri',Arial,serif;
  background:#fff;
  color:var(--ink);
  line-height:1.5;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}

.wrap{max-width:var(--max-w);margin:0 auto;background:#fff;min-height:100vh;}

/* ================= Gallery with overlay badges ================= */
.gallery{padding:14px 14px 0;position:relative;}
.gallery-main{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  aspect-ratio:9/16;
  background:#f1f1f1;
}
.gallery-track{
  display:flex;
  height:100%;
  transition:transform .6s cubic-bezier(.4,0,.2,1);
}
.gallery-track.no-transition{transition:none;}
.gallery-slide{
  flex:0 0 100%;
  width:100%;height:100%;
  object-fit:cover;
}

.badge-overlay{
  position:absolute;
  top:12px;
  padding:6px 12px;
  border-radius:20px;
  font-weight:700;
  font-size:13.5px;
  color:#fff;
  z-index:5;
}
.badge-discount{left:12px;background:var(--red);}
.badge-price{right:12px;background:var(--green);}

.gallery-thumbs-row{display:flex;align-items:center;gap:6px;margin-top:10px;}
.thumb-arrow{
  flex:0 0 auto;background:none;border:none;font-size:20px;color:#444;
  cursor:pointer;padding:2px 4px;
}
.thumbs{display:flex;gap:8px;overflow-x:auto;flex:1;scroll-behavior:smooth;}
.thumbs::-webkit-scrollbar{display:none;}
.thumb-img{
  width:56px;height:56px;object-fit:cover;border-radius:8px;
  border:2px solid transparent;cursor:pointer;flex:0 0 auto;
  opacity:.85;transition:.15s;
}
.thumb-img.active{border-color:var(--red);opacity:1;}

/* ================= Stock / rating block ================= */
.info-block{padding:14px 14px 4px;}

.stock-warning-box{
  background:#fff2e6;border-radius:10px;
  width:272px;height:44px;box-sizing:border-box;
  padding:0 14px;
  display:flex;align-items:center;gap:8px;
  margin:0 auto;
}
.stock-warning-box .icon{
  font-size:18px;flex:0 0 auto;
  display:inline-block;
  animation:iconPulse 1.6s ease-in-out infinite;
}
@keyframes iconPulse{
  0%,100%{transform:scale(1);}
  50%{transform:scale(1.18);}
}
.stock-warning-box .txt{
  color:var(--red);font-weight:700;font-size:14.5px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.stock-progress{
  height:5px;width:272px;background:#ffd9b3;border-radius:4px;margin:8px auto 0;overflow:hidden;
}
.stock-progress .fill{height:100%;width:65%;background:#fb8c00;border-radius:4px;}

.rating-row{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:16px;}
.stars{color:#f5c518;font-size:17px;letter-spacing:1px;}
.rating-label{font-size:13.5px;color:#2563eb;font-weight:600;}
.satisfaction{font-size:13.5px;color:var(--muted);margin-top:6px;text-align:center;}

.btn-order-now{
  display:flex;align-items:center;justify-content:center;
  width:200px;height:42px;margin:16px auto 4px;
  background:var(--black);color:#fff;text-align:center;
  padding:0;border-radius:10px;font-size:16px;font-weight:700;
  border:none;cursor:pointer;
}

/* ================= Combined gray panel: features + call + countdown ================= */
.gray-panel{background:var(--panel-bg);padding:26px 20px;margin-top:18px;}
.gray-panel h2{
  font-size:18px;font-weight:700;margin:0 0 16px;text-align:center;color:var(--black);
}

.feature-list{list-style:none;margin:0 0 30px;padding:0;display:flex;flex-direction:column;gap:14px;}
.feature-list li{
  display:flex;align-items:flex-start;gap:8px;font-size:14.5px;color:var(--ink);
}
.feature-list li .chk{
  flex:0 0 auto;width:18px;height:18px;border-radius:50%;border:1.5px solid var(--red);
  color:var(--red);font-size:11px;display:flex;align-items:center;justify-content:center;
  margin-top:2px;
}

.call-section{text-align:center;margin-bottom:26px;}
.call-section h2{margin-bottom:10px;}
.call-number-text{
  display:block;color:var(--red);font-weight:800;font-size:22px;margin-bottom:14px;
}
.call-btn{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--red);color:#fff;font-weight:700;font-size:15px;
  padding:11px 22px;border-radius:8px;
}

.countdown-box{
  background:#fff;border:1.5px solid var(--red);border-radius:10px;
  padding:18px 16px;text-align:center;
}
.countdown-box h2{margin-bottom:14px;}
.countdown{display:flex;justify-content:center;gap:10px;}
.countdown .box{background:var(--red);border-radius:8px;padding:10px 16px;min-width:58px;}
.countdown .num{font-size:22px;font-weight:800;color:#fff;}
.countdown .lbl{font-size:11px;color:#fff;margin-top:2px;}

/* ================= Section headings (plain, white bg sections) ================= */
.section{padding:24px 14px;}
.section h2{font-size:18px;font-weight:700;margin:0 0 16px;text-align:center;color:var(--black);}

/* ================= Product radio list ================= */
.variant-row{
  background:var(--row-bg);border-radius:var(--radius);
  width:100%;max-width:577px;box-sizing:border-box;
  padding:16px 18px;margin-bottom:14px;cursor:pointer;
  border:2px solid transparent;
  transition:.15s;
}
.variant-row.selected{background:#eef6f1;border-color:var(--green);}
.variant-row-top{display:flex;align-items:flex-start;gap:14px;min-height:70px;}
.variant-radio{
  display:inline-block;
  flex:0 0 auto;width:25px;height:25px;border-radius:50%;
  border:3px solid #b0b0b0;position:relative;
  transition:border-color .15s ease;
  margin-top:3px;
}
.variant-row:hover .variant-radio{border-color:var(--green);}
.variant-row.selected .variant-radio{border-color:var(--green);background:var(--green);}
.variant-row.selected .variant-radio::after{
  content:"";position:absolute;left:5px;top:1px;width:6px;height:12px;
  border:solid #fff;border-width:0 3px 3px 0;transform:rotate(45deg);z-index:2;
}
.variant-mid{flex:1;min-width:0;}
.variant-name{
  font-weight:700;font-size:16px;color:var(--ink);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  display:flex;align-items:center;gap:7px;
}
.variant-swatch{
  display:inline-block;width:15px;height:15px;border-radius:50%;
  border:1.5px solid rgba(0,0,0,0.12);flex:0 0 auto;
}
.variant-price{margin-top:4px;font-size:14.5px;}
.variant-price .old{color:#9ca3af;text-decoration:line-through;margin-right:8px;}
.variant-price .now{color:var(--green-text);font-weight:700;}
.variant-thumb{
  flex:0 0 auto;width:62px;height:70px;object-fit:cover;border-radius:9px;
}
.variant-chevron{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  margin-left:2px;color:#9ca3af;
  transition:transform .3s ease,color .3s ease;
}
.variant-row.selected .variant-chevron{transform:rotate(180deg);color:var(--green);}

.variant-expand{
  max-height:0;opacity:0;overflow:hidden;
  margin-top:0;padding-top:0;border-top:0 dashed #d8d8d8;
  transition:max-height .35s cubic-bezier(.4,0,.2,1),
             opacity .3s ease,
             margin-top .35s ease,
             padding-top .35s ease,
             border-top-width .35s ease;
}
.variant-row.selected .variant-expand{
  max-height:260px;opacity:1;
  margin-top:14px;padding-top:14px;border-top-width:1px;
}
.variant-label{font-size:12.5px;color:var(--muted);margin-bottom:6px;}
.size-options{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px;}
.size-btn{
  border:1px solid #d1d5db;background:#fff;border-radius:8px;
  padding:6px 12px;font-size:13px;cursor:pointer;
}
.size-btn.active{background:var(--black);border-color:var(--black);color:#fff;font-weight:700;}
.qty-row{display:flex;align-items:center;gap:10px;}
.qty-row .lbl{font-size:12.5px;color:var(--muted);}
.qty-control{display:flex;align-items:center;border:1px solid #d1d5db;border-radius:8px;overflow:hidden;background:#fff;}
.qty-control button{width:30px;height:30px;border:none;background:#f3f4f6;font-size:16px;cursor:pointer;}
.qty-control input{
  width:36px;text-align:center;border:none;border-left:1px solid #d1d5db;
  border-right:1px solid #d1d5db;height:30px;font-size:14px;
}

/* ================= Video section ================= */
.video-row{
  display:flex;flex-direction:column;gap:16px;align-items:center;
}
.video-item{
  width:100%;max-width:577px;aspect-ratio:9/16;
  border-radius:var(--radius);overflow:hidden;background:#000;
}
.video-item iframe{width:100%;height:100%;border:0;display:block;}

/* ================= Order form ================= */
.form-group{margin-bottom:16px;}
.form-group label{display:block;font-size:14px;font-weight:700;margin-bottom:6px;color:var(--label-blue);}
.form-group label .req{color:var(--red);}
.form-group input[type=text],
.form-group input[type=tel],
.form-group textarea{
  width:100%;border:1px solid #d9d9d9;border-radius:8px;
  padding:11px 12px;font-size:14.5px;font-family:inherit;background:#fff;
}
.form-group input:focus,
.form-group textarea:focus{outline:none;border-color:#111;border-width:1.5px;}
.form-group textarea{min-height:70px;resize:vertical;}

.radio-group{border-radius:10px;overflow:hidden;border:1px solid var(--border);}
.radio-option{
  display:flex;align-items:center;gap:12px;
  padding:17px 16px;cursor:pointer;background:#fff;
  border-bottom:1px solid var(--border);
  line-height:1.3;
}
.radio-option:last-child{border-bottom:none;}
.radio-option.active{background:#f7f7f7;}
.radio-option .rbtn{
  display:inline-block;box-sizing:border-box;
  width:20px;height:20px;border-radius:50%;border:2px solid #9ca3af;position:relative;flex:0 0 auto;
  align-self:center;
  top:6px;
}
.radio-option.active .rbtn{border-color:var(--green);}
.radio-option.active .rbtn::after{
  content:"";position:absolute;inset:3px;border-radius:50%;background:var(--green);
}
.radio-option .txt{font-size:14.5px;color:#374151;line-height:1.4;align-self:center;}

.summary-box{border:1px solid var(--border);border-radius:10px;overflow:hidden;margin:18px 0;}
.summary-header{
  background:#eaeaea;padding:12px 16px;font-weight:700;font-size:14.5px;
  display:flex;align-items:center;gap:8px;
}
.summary-body{padding:14px 16px;}
.summary-body .selected-line{font-size:14px;margin-bottom:6px;}
.summary-body .selected-value{
  display:block;color:#6b8299;font-size:13.5px;margin-top:4px;padding-bottom:10px;border-bottom:1px solid #eee;
}
.summary-body .selected-value .summary-item-line{padding:6px 0;color:#374151;font-size:14px;}
.summary-body .row{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px solid #eee;font-size:14.5px;}
.summary-body .row.total{border-bottom:none;font-weight:800;font-size:16px;}
.summary-body .row.total .val{color:var(--green-text);}

.hint-banner{
  background:#fef9c3;color:#8a6d1a;text-align:center;font-size:13.5px;
  padding:12px;border-radius:8px;margin-bottom:14px;
}

.btn-submit{
  width:100%;border:none;padding:15px;border-radius:10px;
  font-size:16px;font-weight:700;cursor:pointer;
}
.btn-submit.disabled{background:#d9d9d9;color:#8a97a8;cursor:not-allowed;}
.btn-submit.enabled{background:var(--black);color:#fff;}

.form-error{color:#dc2626;font-size:13.5px;margin-top:4px;display:none;}

/* ================= Thank you modal ================= */
.modal-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.55);
  display:none;align-items:center;justify-content:center;z-index:200;padding:20px;
}
.modal-overlay.show{display:flex;}
.modal-box{background:#fff;border-radius:16px;padding:28px 22px;text-align:center;max-width:360px;width:100%;}
.modal-box .icon{font-size:52px;}
.modal-box h3{margin:10px 0 6px;font-size:20px;}
.modal-box p{color:var(--muted);font-size:14.5px;margin:4px 0;}
.modal-box button{
  margin-top:16px;background:var(--black);color:#fff;border:none;
  padding:12px 28px;border-radius:10px;font-weight:700;font-size:15px;cursor:pointer;width:100%;
}

/* ================= Footer ================= */
.footer{text-align:center;padding:18px 14px 26px;color:#9ca3af;font-size:12.5px;}