:root{
  --ink:#14171c; --muted:#6b7280; --line:#e6e8eb; --bg:#ffffff; --bg-soft:#f6f7f8;
  --teal:#12b3a6; --teal-dark:#0d8e84; --teal-light:#e6f9f7;
  --danger:#e0342b; --danger-bg:#fdecea;
  --success:#1c8a53; --success-bg:#e7f8ee;
  --warn:#b8790a; --warn-bg:#fdf3de;
  --info:#2b6cc0; --info-bg:#e9f1fd;
  --violet:#6c3ec0; --violet-bg:#efe9fb;
  --radius:16px; --radius-sm:10px; --radius-pill:999px;
  --serif:'Poppins','Segoe UI',system-ui,sans-serif;
  --sans:'Jost','Segoe UI',system-ui,-apple-system,'Noto Sans Bengali',sans-serif;
  --shadow:0 2px 8px rgba(20,23,28,.06), 0 12px 28px -16px rgba(20,23,28,.16);
  --shadow-sm:0 1px 3px rgba(20,23,28,.08);
}
*{box-sizing:border-box}
body{margin:0;font-family:var(--sans);background:var(--bg);color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--teal-dark);text-decoration:none;transition:color .15s}
a:hover{color:var(--teal)}
.container{max-width:1220px;margin:0 auto;padding:0 20px}
img{max-width:100%;display:block}
h1,h2,h3{font-family:var(--serif);font-weight:700;color:var(--ink);letter-spacing:-.01em}
.icon{width:1.15em;height:1.15em;stroke:currentColor;fill:none;stroke-width:1.8;vertical-align:-.2em}

/* header */
.site-header{background:rgba(255,255,255,.9);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px}
.menu-btn{display:flex;align-items:center;gap:8px;background:none;border:none;color:var(--ink);font-weight:700;font-size:.82rem;letter-spacing:.08em;text-transform:uppercase;cursor:pointer;padding:6px 4px}
.logo{font-family:var(--serif);font-size:1.35rem;font-weight:700;color:var(--ink);letter-spacing:-.01em;display:flex;align-items:center;gap:2px}
.logo .accent{color:var(--teal)}
.logo-img{max-height:38px;max-width:180px;object-fit:contain}
.header-icons{display:flex;align-items:center;gap:18px}
.cart-link{position:relative;color:var(--ink) !important;display:flex}
.cart-count{position:absolute;top:-8px;right:-9px;background:var(--danger);color:#fff;font-size:.62rem;font-weight:700;min-width:17px;height:17px;border-radius:50%;display:flex;align-items:center;justify-content:center;padding:0 3px}

.mobile-menu{display:none;position:fixed;inset:0;z-index:70;background:rgba(20,23,28,.4)}
.mobile-menu.open{display:block}
.mobile-menu-panel{background:#fff;width:78%;max-width:320px;height:100%;padding:24px 22px;overflow-y:auto}
.mobile-menu-close{background:none;border:none;font-size:1.4rem;color:var(--ink);cursor:pointer;float:right}
.mobile-menu-panel .search-form{margin:36px 0 22px}
.mobile-menu-panel nav a{display:flex;align-items:center;gap:10px;padding:13px 0;color:var(--ink);font-weight:600;border-bottom:1px solid var(--line)}
.mobile-menu-panel nav a:hover{color:var(--teal-dark)}

.search-form{display:flex}
.search-form input{flex:1;min-width:0;padding:11px 16px;border:1.5px solid var(--line);background:#fff;color:var(--ink);border-radius:var(--radius-pill) 0 0 var(--radius-pill);outline:none;font-size:.92rem;border-right:none;font-family:var(--sans)}
.search-form input:focus{border-color:var(--teal)}
.search-form button{padding:11px 20px;border:1.5px solid var(--teal);background:var(--teal);color:#fff;border-radius:0 var(--radius-pill) var(--radius-pill) 0;cursor:pointer;font-weight:600}
.search-form button:hover{background:var(--teal-dark);border-color:var(--teal-dark)}

.main-content{padding:32px 20px;min-height:60vh}

/* page loader */
.page-loader{position:fixed;inset:0;z-index:999;background:#fff;display:flex;align-items:center;justify-content:center;transition:opacity .3s ease,visibility .3s ease}
.page-loader.hide{opacity:0;visibility:hidden;pointer-events:none}
.loader-spinner{width:44px;height:44px;border-radius:50%;border:4px solid var(--line);border-top-color:var(--teal);animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* alerts */
.alert{padding:14px 18px;border-radius:var(--radius-sm);margin:16px 0;font-weight:500;border:1px solid transparent}
.alert-success{background:var(--success-bg);color:var(--success);border-color:#b8e6cb}
.alert-error{background:var(--danger-bg);color:var(--danger);border-color:#f3b6ae}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:var(--radius-pill);border:1.5px solid var(--teal);background:var(--teal);color:#fff;font-weight:600;cursor:pointer;font-size:.9rem;transition:all .15s}
.btn:hover{background:var(--teal-dark);border-color:var(--teal-dark);color:#fff}
.btn:active{transform:scale(.98)}
.btn-outline{background:transparent;color:var(--teal-dark);border:1.5px solid var(--teal)}
.btn-outline:hover{background:var(--teal);color:#fff}
.btn-accent{background:var(--ink);border-color:var(--ink)}
.btn-accent:hover{background:#000;border-color:#000}
.btn-danger{background:var(--danger);border-color:var(--danger);color:#fff}
.btn-danger:hover{background:#c22a22;border-color:#c22a22}
.btn-sm{padding:8px 16px;font-size:.8rem}
.btn-block{display:flex;width:100%;text-align:center}

/* hero */
.hero{background:linear-gradient(120deg,#1c2024,#14171c);color:#fff;border-radius:var(--radius);padding:56px 40px;margin-bottom:36px;position:relative;overflow:hidden}
.hero::after{content:'';position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(18,179,166,.28),transparent 70%)}
.hero h1{font-size:2.3rem;margin:0 0 12px;font-weight:700;color:#fff;line-height:1.2}
.hero p{opacity:.82;margin:0 0 22px;max-width:540px;font-size:1rem}

.eyebrow{color:var(--teal-dark);font-weight:700;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:6px}
.section-title{display:flex;justify-content:space-between;align-items:center;margin:40px 0 18px}
.section-title h2{font-size:1.45rem;margin:0}
.section-title a{font-weight:700;font-size:.82rem;display:inline-flex;align-items:center;gap:4px}

/* category cards (homepage) */
.cat-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}
.cat-card{position:relative;border-radius:var(--radius-sm);overflow:hidden;height:200px;background:var(--bg-soft) center/cover no-repeat;display:flex;align-items:flex-end;box-shadow:var(--shadow-sm)}
.cat-card::before{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.62),rgba(0,0,0,0) 60%)}
.cat-card .cat-card-body{position:relative;padding:16px;color:#fff}
.cat-card .cat-eyebrow{font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;opacity:.85}
.cat-card .cat-name{font-weight:700;font-size:1.05rem;font-family:var(--serif)}
.cat-card.no-image{align-items:center;justify-content:center;text-align:center}
.cat-card.no-image::before{display:none}
.cat-card.no-image .cat-card-body{color:var(--muted)}
.cat-card.no-image .cat-eyebrow{opacity:1}
.cat-card.no-image .cat-name{color:var(--ink)}
.view-all-wrap{text-align:center;margin:26px 0 10px}

/* filter bar */
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:24px;background:#fff;padding:16px;border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);border:1px solid var(--line)}
.filter-bar select,.filter-bar input{padding:10px 14px;border:1.5px solid var(--line);border-radius:var(--radius-sm);font-size:.88rem;font-family:var(--sans);background:#fff;color:var(--ink)}
.filter-bar select:focus,.filter-bar input:focus{outline:none;border-color:var(--teal)}
.filter-bar input[type="number"]{width:120px}
.filter-bar select{cursor:pointer}
@media (max-width:600px){.filter-bar{flex-direction:column;align-items:stretch}.filter-bar input[type="number"]{width:100%}.filter-bar .btn{width:100%}}

/* product grid / cards */
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:20px}
.product-card{background:#fff;border-radius:var(--radius-sm);overflow:hidden;position:relative;transition:transform .2s,box-shadow .2s;border:1px solid var(--line)}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.product-card img{height:190px;width:100%;object-fit:cover;background:var(--bg-soft)}
.product-card .pc-body{padding:15px}
.product-card h3{font-family:var(--sans);font-weight:600;color:var(--ink);font-size:.94rem;margin:0 0 8px;height:2.5em;overflow:hidden}
.price{font-weight:700;color:var(--ink)}
.price-old{color:#a3a8b3;text-decoration:line-through;font-weight:400;font-size:.85em;margin-left:7px}
.sale-badge{position:absolute;top:12px;left:12px;background:var(--success);color:#fff;font-size:.7rem;font-weight:700;padding:4px 10px;border-radius:var(--radius-pill);z-index:2}
.new-ribbon{position:absolute;top:14px;right:-32px;background:var(--ink);color:#fff;font-size:.62rem;font-weight:700;letter-spacing:.05em;padding:4px 38px;transform:rotate(45deg);z-index:2}
.wish-btn{position:absolute;top:12px;right:12px;background:#fff;border-radius:50%;width:34px;height:34px;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);border:none;cursor:pointer;color:var(--ink)}
.stars{color:#f0a500;font-size:.9rem}
.pc-actions{display:flex;gap:6px;margin-top:10px}
.pc-actions form{flex:1}
.btn-mini{width:100%;padding:8px 6px;border-radius:var(--radius-sm);border:1.5px solid var(--teal);background:#fff;color:var(--teal-dark);font-weight:600;font-size:.76rem;cursor:pointer}
.btn-mini:hover{background:var(--teal-light)}
.btn-mini-solid{background:var(--teal);color:#fff}
.btn-mini-solid:hover{background:var(--teal-dark)}

/* forms */
.form-card{background:#fff;padding:30px;border-radius:var(--radius);box-shadow:var(--shadow-sm);max-width:460px;margin:0 auto;border:1px solid var(--line)}
.form-group{margin-bottom:17px}
.form-group label{display:block;font-weight:600;margin-bottom:6px;font-size:.82rem;letter-spacing:.02em;color:#4a4e57}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:11px 14px;border:1.5px solid var(--line);border-radius:var(--radius-sm);font-size:.94rem;font-family:var(--sans);background:#fff}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--teal)}
.form-row{display:flex;gap:14px;flex-wrap:wrap}
.form-row .form-group{flex:1;min-width:160px}
.hint{color:var(--muted);font-size:.82rem}

/* zone / payment selection cards */
.option-card{display:flex;align-items:flex-start;gap:12px;border:1.5px solid var(--line);border-radius:var(--radius-sm);padding:14px 16px;margin-bottom:10px;cursor:pointer;transition:border-color .15s,background .15s;background:#fff}
.option-card:hover{border-color:var(--teal)}
.option-card.selected{border-color:var(--teal);background:var(--teal-light)}
.option-card input{margin-top:3px;accent-color:var(--teal-dark)}
.option-card .opt-title{font-weight:600;font-size:.95rem;color:var(--ink)}
.option-card .opt-sub{color:var(--muted);font-size:.82rem;margin-top:2px}

/* tables */
table{width:100%;border-collapse:collapse;background:#fff;overflow:hidden;border-radius:var(--radius-sm)}
table th,table td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;font-size:.88rem}
table th{background:var(--bg-soft);color:var(--ink);font-weight:700;font-size:.74rem;text-transform:uppercase;letter-spacing:.04em}
.badge{padding:5px 12px;border-radius:var(--radius-pill);font-size:.72rem;font-weight:700}
.badge-pending{background:var(--warn-bg);color:var(--warn)}
.badge-processing{background:var(--info-bg);color:var(--info)}
.badge-shipped{background:var(--violet-bg);color:var(--violet)}
.badge-delivered{background:var(--success-bg);color:var(--success)}
.badge-cancelled{background:var(--danger-bg);color:var(--danger)}
.badge-paid,.badge-verified{background:var(--success-bg);color:var(--success)}
.badge-failed{background:var(--danger-bg);color:var(--danger)}

/* product detail */
.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:44px}
.resp-grid-main{display:grid;grid-template-columns:1fr 320px;gap:24px}
.resp-grid-2col{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.product-detail img.main-img{border-radius:var(--radius);width:100%;height:430px;object-fit:cover;background:var(--bg-soft);border:1px solid var(--line)}
.qty-box{display:flex;align-items:center;gap:10px;margin:16px 0}
.qty-box input{width:64px;text-align:center;padding:10px;border:1.5px solid var(--line);border-radius:var(--radius-sm)}

/* cart */
.cart-table img{width:58px;height:58px;object-fit:cover;border-radius:8px}
.cart-summary{background:#fff;padding:24px;border-radius:var(--radius);box-shadow:var(--shadow-sm);border:1px solid var(--line)}
.cart-summary .row{display:flex;justify-content:space-between;margin-bottom:10px;font-size:.94rem}
.cart-summary .total{font-weight:700;font-size:1.25rem;border-top:1px solid var(--line);padding-top:12px;margin-top:6px;font-family:var(--serif)}

/* tracking timeline */
.timeline{list-style:none;padding:0;margin:20px 0}
.timeline li{padding-left:28px;position:relative;padding-bottom:22px;border-left:2px solid var(--teal)}
.timeline li:last-child{border-color:transparent}
.timeline li::before{content:'';position:absolute;left:-6px;top:0;width:11px;height:11px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 3px #fff}
.timeline .t-status{font-weight:700;font-family:var(--serif)}
.timeline .t-date{color:var(--muted);font-size:.85rem}

/* footer */
.site-footer{background:#14171c;color:#c7c9cd;margin-top:64px;padding-top:40px}
.footer-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px;padding-bottom:28px}
.site-footer a{color:#c7c9cd}
.site-footer a:hover{color:var(--teal)}
.site-footer h4{margin:0 0 12px;color:#fff;font-family:var(--serif);font-size:1.02rem}
.copyright{text-align:center;padding:16px 0;background:#000;font-size:.82rem;color:#7d7f84}
.dev-credit{display:inline-block;margin-top:6px;color:var(--teal);font-family:monospace;font-size:.8rem}
.dev-credit:hover{color:var(--teal-light)}

/* admin layout */
.admin-wrap{display:flex;min-height:100vh;font-family:var(--sans)}
.admin-sidebar{width:236px;background:#14171c;color:#fff;padding:22px 0;flex-shrink:0}
.admin-sidebar h2{padding:0 20px;font-size:1.08rem;margin-bottom:22px;font-weight:700;font-family:var(--serif)}
.admin-sidebar a{display:block;padding:11px 20px;color:#a7a9ae;font-weight:600;font-size:.88rem;border-left:2px solid transparent}
.admin-sidebar a:hover,.admin-sidebar a.active{background:rgba(18,179,166,.1);color:#fff;border-left-color:var(--teal)}
.admin-main{flex:1;padding:28px 32px;background:var(--bg-soft)}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin-bottom:28px}
.stat-card{background:#fff;padding:19px 21px;border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);border:1px solid var(--line);border-top:2px solid var(--teal)}
.stat-card .num{font-size:1.65rem;font-weight:700;color:var(--ink);font-family:var(--serif)}
.stat-card .lbl{color:var(--muted);font-size:.82rem;margin-top:2px}
.admin-card{background:#fff;padding:24px;border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);margin-bottom:24px;border:1px solid var(--line)}
.admin-card h3{margin-top:0}
.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap;gap:10px}
.settings-section{border-top:1px solid var(--line);margin-top:22px;padding-top:20px}
.settings-section:first-of-type{border-top:none;margin-top:0;padding-top:0}

/* bottom mobile tab bar */
.bottom-tabbar{display:none}

@media (max-width: 780px){
  .product-detail{grid-template-columns:1fr}
  .resp-grid-main{grid-template-columns:1fr}
  .resp-grid-2col{grid-template-columns:1fr}
  .admin-wrap{flex-direction:column}
  .admin-sidebar{width:100%;display:flex;overflow-x:auto;padding:10px 0}
  .admin-sidebar h2{display:none}
  .admin-sidebar a{white-space:nowrap;padding:10px 16px;border-left:none;border-bottom:2px solid transparent}
  .admin-sidebar a:hover,.admin-sidebar a.active{border-left:none;border-bottom-color:var(--teal)}
  .hero{padding:40px 24px}
  .hero h1{font-size:1.85rem}
  .menu-btn span.label{display:none}

  .bottom-tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;
    background:#fff;border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom,0px);
  }
  .bottom-tabbar a{
    flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;
    padding:9px 4px 8px;color:var(--muted);font-size:.68rem;font-weight:600;
    position:relative;
  }
  .bottom-tabbar a .icon{width:1.35em;height:1.35em}
  .bottom-tabbar a.active{color:var(--teal-dark)}
  .tab-badge{position:absolute;top:2px;right:calc(50% - 20px);background:var(--danger);color:#fff;font-size:.6rem;font-weight:700;min-width:15px;height:15px;border-radius:50%;display:flex;align-items:center;justify-content:center;padding:0 3px}
  body{padding-bottom:64px}
  .site-footer{padding-bottom:calc(64px + env(safe-area-inset-bottom,0px))}
}

/* announcement bar */
.announce-bar{background:var(--teal);color:#fff;text-align:center;font-size:.82rem;font-weight:600;padding:8px 16px}
.announce-bar a{color:#fff;text-decoration:underline}

/* flash sale (all themes) */
.flash-sale{background:var(--teal-light);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin:34px 0}
.flash-sale-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;flex-wrap:wrap;gap:10px}
.flash-sale-head h2{color:var(--teal-dark);margin:0;display:flex;align-items:center;gap:8px}
.flash-sale-head .icon{width:1.2em;height:1.2em}
.flash-countdown{display:flex;gap:6px;align-items:center;font-weight:700;color:var(--ink)}
.flash-countdown .fc-unit{background:#1a1a1a;color:#fff;padding:5px 9px;border-radius:6px;min-width:36px;text-align:center;font-family:monospace}
.flash-countdown .fc-unit small{font-size:.65rem;opacity:.7;margin-left:1px}
.flash-promo{display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:#fff;border:1.5px dashed var(--teal);border-radius:var(--radius-sm);padding:10px 14px;margin-bottom:16px;font-size:.9rem}
.flash-promo code{font-weight:700;letter-spacing:.08em;background:var(--teal-light);padding:4px 10px;border-radius:6px;color:var(--teal-dark);font-size:1rem}
.flash-promo .flash-promo-desc{color:var(--muted);flex:1;min-width:120px}
.flash-promo .btn-mini{width:auto;padding:7px 16px}

/* footer extras */
.footer-social{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.footer-social a{border:1px solid #3a3d44;padding:6px 14px;border-radius:999px;font-size:.8rem}
.footer-links a{display:inline-block;margin-bottom:6px}
.footer-contact p{margin:0 0 8px;font-size:.9rem}

/* whatsapp floating button */
.wa-float{position:fixed;right:16px;bottom:22px;width:54px;height:54px;border-radius:50%;background:#25d366;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(0,0,0,.25);z-index:55}
.wa-float .icon{stroke:#fff;width:1.7em;height:1.7em}

/* static pages */
.page-content{max-width:780px;margin:0 auto}
.page-content h1{margin-bottom:18px}
.page-content h3{margin:28px 0 8px}
.page-content p,.page-content li{line-height:1.75}
.page-content ul{padding-left:22px}

@media (max-width:780px){
  .wa-float{bottom:calc(76px + env(safe-area-inset-bottom,0px));right:14px;width:50px;height:50px}
}