/* ============================================================
   SchoolNotes — Design System
   ============================================================ */
:root{
  --primary:#4f46e5;
  --primary-dark:#3730a3;
  --primary-light:#818cf8;
  --accent:#f59e0b;
  --accent-dark:#d97706;
  --success:#16a34a;
  --success-dark:#15803d;
  --success-light:#dcfce7;
  --danger:#dc2626;
  --bg:#f7f8fc;
  --bg-alt:#eef0fb;
  --surface:#ffffff;
  --text:#0f172a;
  --text-light:#64748b;
  --text-lighter:#94a3b8;
  --border:#e5e7eb;
  --shadow-sm:0 1px 3px rgba(15,23,42,.06);
  --shadow:0 4px 16px rgba(15,23,42,.08);
  --shadow-lg:0 12px 40px rgba(15,23,42,.14);
  --radius-sm:8px;
  --radius:14px;
  --radius-lg:22px;
  --maxw:1280px;
  --header-h:64px;
  --bottom-nav-h:64px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter','Segoe UI',sans-serif;color:var(--text);background:var(--bg);line-height:1.6;font-size:15px;-webkit-tap-highlight-color:transparent}
h1,h2,h3,h4{font-family:'Poppins',sans-serif;font-weight:700;color:var(--text);line-height:1.25}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{cursor:pointer;font-family:inherit;border:none;background:none}
input,select,textarea{font-family:inherit;font-size:14px}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}

.btn{padding:11px 22px;border-radius:10px;font-weight:600;font-size:14px;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.18s;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(79,70,229,.25)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 4px 14px rgba(245,158,11,.25)}
.btn-accent:hover{background:var(--accent-dark)}
.btn-success{background:var(--success);color:#fff}
.btn-success:hover{background:var(--success-dark)}
.btn-outline{border:1.5px solid var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-ghost{background:var(--bg-alt);color:var(--text)}
.btn-ghost:hover{background:var(--border)}
.btn-lg{padding:15px 30px;font-size:16px;border-radius:12px}
.btn-sm{padding:7px 14px;font-size:12.5px;border-radius:8px}
.btn-block{width:100%;justify-content:center}
.btn[disabled]{opacity:.55;cursor:not-allowed;pointer-events:none}

/* ============================================================ Top notice bar */
.notice-bar{background:var(--danger);color:#fff;text-align:center;padding:9px 16px;font-size:13px;font-weight:600;letter-spacing:.2px}
.notice-bar b{color:#fff}
.notice-bar .nb-scroll{display:inline-block}

/* ============================================================ Header / Navbar */
header.site{background:var(--surface);position:sticky;top:0;z-index:200;box-shadow:var(--shadow-sm);height:var(--header-h)}
.nav-wrap{display:flex;align-items:center;gap:18px;height:100%}
.logo{display:flex;align-items:center;gap:10px;font-family:'Poppins',sans-serif;font-weight:800;font-size:20px;color:var(--primary-dark);flex-shrink:0}
.logo-mark{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:800;box-shadow:0 3px 10px rgba(79,70,229,.3)}
.logo small{display:block;font-size:9px;font-weight:600;color:var(--text-light);letter-spacing:1px;margin-top:-2px}
nav.main{display:none;align-items:center;gap:2px;flex:1}
nav.main a{padding:9px 13px;border-radius:8px;font-weight:500;font-size:13.5px;color:#334155;transition:.15s}
nav.main a:hover,nav.main a.active{background:var(--bg-alt);color:var(--primary-dark)}
nav.main .dropdown{position:relative}
nav.main .dropdown>a::after{content:'▾';font-size:9px;margin-left:5px;opacity:.6}
nav.main .menu-panel{position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--border);border-radius:12px;padding:8px;min-width:190px;box-shadow:var(--shadow-lg);display:none;z-index:99}
nav.main .dropdown:hover .menu-panel{display:block}
nav.main .menu-panel a{display:block;padding:9px 12px;border-radius:8px;font-size:13.5px}
.nav-search{display:none;flex:1;max-width:340px;position:relative}
.nav-search input{width:100%;padding:9px 14px 9px 36px;border:1.5px solid var(--border);border-radius:50px;font-size:13.5px;background:var(--bg)}
.nav-search input:focus{outline:none;border-color:var(--primary)}
.nav-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-lighter)}
.nav-right{display:flex;align-items:center;gap:8px;margin-left:auto}
.icon-btn{width:38px;height:38px;border-radius:10px;background:var(--bg);display:flex;align-items:center;justify-content:center;color:#334155;position:relative;transition:.15s;flex-shrink:0}
.icon-btn:hover{background:var(--bg-alt);color:var(--primary)}
.icon-btn .badge{position:absolute;top:-4px;right:-4px;background:var(--accent);color:#fff;font-size:9.5px;font-weight:700;min-width:16px;height:16px;border-radius:8px;display:flex;align-items:center;justify-content:center;padding:0 3px}
.nav-hamburger{display:flex}
@media(min-width:860px){
  nav.main{display:flex}
  .nav-search{display:flex}
  .nav-hamburger{display:none}
}

/* Mobile drawer menu */
.mobile-drawer-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.5);z-index:300;display:none}
.mobile-drawer-backdrop.open{display:block}
.mobile-drawer{position:fixed;top:0;left:0;bottom:0;width:82%;max-width:320px;background:#fff;z-index:301;transform:translateX(-100%);transition:transform .25s ease;overflow-y:auto;padding:18px}
.mobile-drawer.open{transform:translateX(0)}
.mobile-drawer .md-close{width:36px;height:36px;border-radius:50%;background:var(--bg);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.mobile-drawer a.md-link{display:flex;align-items:center;gap:10px;padding:13px 10px;border-radius:10px;font-weight:600;font-size:15px;color:var(--text)}
.mobile-drawer a.md-link:hover{background:var(--bg-alt)}
.mobile-drawer .md-sub{padding-left:16px;border-left:2px solid var(--border);margin:4px 0 10px 22px}
.mobile-drawer .md-sub a{display:block;padding:9px 8px;font-size:13.5px;color:var(--text-light)}
.mobile-drawer .md-section-title{font-size:11px;text-transform:uppercase;letter-spacing:.6px;color:var(--text-lighter);font-weight:700;margin:16px 0 6px 10px}

/* ============================================================ Hero */
.hero{background:linear-gradient(135deg,#4f46e5 0%,#6366f1 55%,#818cf8 100%);color:#fff;padding:44px 0 90px;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'%3E%3Cg fill='%23ffffff' fill-opacity='.06'%3E%3Cpath d='M40 0 L0 40 L40 80 L80 40Z'/%3E%3C/g%3E%3C/svg%3E");opacity:.6}
.hero-inner{text-align:center;position:relative;z-index:2}
.hero h1{font-size:38px;margin-bottom:8px;color:#fff}
.hero h1 .cap{font-size:34px}
.hero p{font-size:16px;opacity:.95;margin-bottom:26px;max-width:560px;margin-left:auto;margin-right:auto}
.hero-search{background:#fff;border-radius:18px;padding:8px;display:flex;gap:8px;max-width:720px;margin:0 auto;box-shadow:0 14px 40px rgba(0,0,0,.22);align-items:center;flex-wrap:wrap}
.hero-search select{flex:1;min-width:130px;padding:13px 14px;border:none;background:transparent;font-size:14px;color:#475569;border-right:1px solid var(--border);cursor:pointer;outline:none;border-radius:10px}
.hero-search select:last-of-type{border-right:none}
.hero-search button{padding:13px 22px;border-radius:12px;font-size:14px}
@media(max-width:768px){.hero h1{font-size:27px}.hero-search{flex-direction:column;border-radius:16px;padding:10px}.hero-search select{border-right:none;border-bottom:1px solid var(--border);width:100%}.hero-search button{width:100%}}

/* Hero sliding image strip — right to left auto-scroll */
.hero-slider{position:relative;z-index:2;margin-top:34px;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent 0,#000 6%,#000 94%,transparent 100%);mask-image:linear-gradient(90deg,transparent 0,#000 6%,#000 94%,transparent 100%)}
.hero-slider-track{display:flex;gap:16px;width:max-content;animation:heroSlideRTL 34s linear infinite}
.hero-slider:hover .hero-slider-track{animation-play-state:paused}
.hero-slide-card{flex:0 0 auto;width:150px;height:110px;border-radius:16px;padding:14px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:0 10px 24px rgba(0,0,0,.18);position:relative;overflow:hidden}
.hero-slide-card .hsc-emoji{font-size:26px;filter:drop-shadow(0 2px 3px rgba(0,0,0,.15))}
.hero-slide-card .hsc-label{font-size:12.5px;font-weight:700;color:#fff;line-height:1.25;text-shadow:0 1px 3px rgba(0,0,0,.25)}
@keyframes heroSlideRTL{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media(max-width:768px){.hero-slider{margin-top:24px}.hero-slide-card{width:120px;height:92px;padding:10px;border-radius:13px}.hero-slide-card .hsc-emoji{font-size:20px}.hero-slide-card .hsc-label{font-size:11px}}

.wa-bar{background:var(--success-light);border-radius:16px;padding:14px 18px;display:flex;align-items:center;gap:12px;margin:-56px auto 26px;max-width:1080px;box-shadow:var(--shadow);position:relative;z-index:3;color:var(--success-dark)}
.wa-bar .pill{margin-left:auto;background:var(--success);color:#fff;padding:9px 18px;border-radius:50px;font-weight:600;font-size:12.5px;flex-shrink:0}
@media(max-width:560px){.wa-bar{flex-wrap:wrap}.wa-bar .pill{margin-left:0}}

.coupon-card{background:linear-gradient(135deg,#fef3c7 0%,#fde68a 100%);border:2px dashed var(--accent-dark);border-radius:16px;padding:26px;text-align:center;margin-bottom:26px}
.coupon-card h2{color:#92400e;font-size:24px;margin-bottom:6px}
.coupon-card .sub{font-size:15px;color:#78350f;margin-bottom:12px}
.coupon-card .code{font-size:22px;font-weight:800;color:#92400e;letter-spacing:2px;background:#fff;padding:4px 14px;border-radius:8px;display:inline-block}
.coupon-card .price-strike{margin-top:10px;background:#fff;display:inline-block;padding:5px 14px;border-radius:8px;font-weight:700;color:#92400e}

.stats-strip{background:linear-gradient(135deg,var(--primary-dark),var(--primary));border-radius:16px;padding:26px 18px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;color:#fff;margin-bottom:44px;text-align:center;box-shadow:0 12px 30px rgba(79,70,229,.3)}
.stat .n{font-size:30px;font-weight:800;font-family:'Poppins';display:block;margin:4px 0 2px}
.stat svg{width:26px;height:26px;opacity:.9}
@media(max-width:640px){.stats-strip{grid-template-columns:1fr}}

section{padding:46px 0}
.section-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:26px;flex-wrap:wrap;gap:10px}
.section-head h2{font-size:25px}

/* ============================================================ Feature grid */
.features{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.feature{background:#f1f5f9;border-radius:16px;padding:22px 14px;text-align:center;transition:.2s}
.feature:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.feature:nth-child(1){background:#e0e7ff}.feature:nth-child(1) .icon{color:var(--primary)}
.feature:nth-child(2){background:#fce7f3}.feature:nth-child(2) .icon{color:#be185d}
.feature:nth-child(3){background:#fef3c7}.feature:nth-child(3) .icon{color:#b45309}
.feature:nth-child(4){background:#dcfce7}.feature:nth-child(4) .icon{color:#15803d}
.feature:nth-child(5){background:#e0f2fe}.feature:nth-child(5) .icon{color:#0369a1}
.feature:nth-child(6){background:#fee2e2}.feature:nth-child(6) .icon{color:#b91c1c}
.feature h4{font-size:13px;margin-top:8px;font-weight:700}
.feature .icon{width:32px;height:32px;margin:0 auto}
@media(max-width:900px){.features{grid-template-columns:repeat(3,1fr)}}
@media(max-width:480px){.features{grid-template-columns:repeat(2,1fr)}}

/* ============================================================ Category grid */
.cats{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.cat-tile{background:#fff;border:1.5px solid var(--border);border-radius:16px;padding:0;text-align:center;cursor:pointer;transition:.2s;overflow:hidden}
.cat-tile:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.cat-art{height:84px;display:flex;align-items:center;justify-content:center;font-size:34px;position:relative;overflow:hidden}
.cat-tile .cat-body{padding:12px 10px 16px}
.cat-tile h4{font-size:13px;color:var(--text)}
.cat-tile .count{font-size:11px;color:var(--text-light);margin-top:4px}
@media(max-width:900px){.cats{grid-template-columns:repeat(3,1fr)}}
@media(max-width:480px){.cats{grid-template-columns:repeat(2,1fr)}}

/* category art gradients (CSS "product photography" substitute) */
.art-c10{background:linear-gradient(135deg,#4f46e5,#818cf8)}
.art-c9{background:linear-gradient(135deg,#7c3aed,#c084fc)}
.art-c8{background:linear-gradient(135deg,#059669,#34d399)}
.art-c7{background:linear-gradient(135deg,#e11d48,#fb7185)}
.art-c6{background:linear-gradient(135deg,#ea580c,#fdba74)}
.art-c11s{background:linear-gradient(135deg,#0369a1,#38bdf8)}
.art-c12s{background:linear-gradient(135deg,#4338ca,#a78bfa)}
.art-c11c,.art-c12c{background:linear-gradient(135deg,#15803d,#4ade80)}
.art-jee{background:linear-gradient(135deg,#b91c1c,#1e3a8a)}
.art-other{background:linear-gradient(135deg,#334155,#64748b)}

/* ============================================================ Product grid & cards */
.products{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:1100px){.products{grid-template-columns:repeat(3,1fr)}}
@media(max-width:820px){.products{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.products{grid-template-columns:repeat(2,1fr);gap:10px}}

.product-card{background:#fff;border:1px solid var(--border);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;transition:.2s;position:relative}
.product-card:hover{border-color:var(--primary-light);box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.product-thumb{height:130px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.product-thumb::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at 30% 20%,rgba(255,255,255,.35),transparent 60%)}
.product-thumb .ico{font-size:44px;position:relative;z-index:1;filter:drop-shadow(0 2px 6px rgba(0,0,0,.15))}
.product-thumb .badge{position:absolute;top:9px;left:9px;background:var(--accent);color:#fff;padding:4px 9px;border-radius:6px;font-size:10px;font-weight:700;z-index:2}
.product-thumb .badge.new{background:var(--success)}
.product-thumb .wish-btn{position:absolute;top:9px;right:9px;width:30px;height:30px;border-radius:50%;background:rgba(255,255,255,.92);box-shadow:0 2px 8px rgba(0,0,0,.12);display:flex;align-items:center;justify-content:center;font-size:14px;z-index:2}
.product-info{padding:13px;flex:1;display:flex;flex-direction:column}
.product-cat{color:var(--primary);font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.4px;margin-bottom:5px}
.product-name{font-size:13px;font-weight:600;color:var(--text);margin-bottom:8px;line-height:1.4;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.product-meta{display:flex;align-items:center;justify-content:space-between;margin-top:6px}
.product-price{font-size:17px;font-weight:800;color:var(--success-dark);font-family:'Poppins'}
.product-price small{font-size:11px;font-weight:500;color:var(--text-lighter);text-decoration:line-through;margin-right:5px}
.card-actions{display:flex;gap:6px;margin-top:10px}
.card-actions .add{flex:1;background:var(--primary);color:#fff;padding:9px;border-radius:9px;font-weight:600;font-size:12px;transition:.15s}
.card-actions .add:hover{background:var(--primary-dark)}
.card-actions .view{width:36px;height:36px;border:1.5px solid var(--border);border-radius:9px;display:flex;align-items:center;justify-content:center;color:#475569;flex-shrink:0}
.card-actions .view:hover{border-color:var(--primary);color:var(--primary)}

/* skeleton loading */
.skeleton{background:linear-gradient(90deg,#eef0f4 25%,#f6f7fa 37%,#eef0f4 63%);background-size:400% 100%;animation:sk 1.4s ease infinite;border-radius:8px}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* ============================================================ Filter bar */
.filter-bar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px;align-items:center}
.chip{padding:8px 15px;background:#fff;border:1.5px solid var(--border);border-radius:50px;font-size:12.5px;font-weight:500;cursor:pointer;transition:.15s;color:#475569;white-space:nowrap}
.chip:hover{border-color:var(--primary)}
.chip.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.chip-scroll{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}
.chip-scroll::-webkit-scrollbar{display:none}
.filter-search{margin-left:auto;display:flex;align-items:center;gap:8px}
.filter-search input{padding:9px 14px;border:1.5px solid var(--border);border-radius:10px;width:220px;font-size:13.5px}
.filter-search select{padding:9px 14px;border:1.5px solid var(--border);border-radius:10px;background:#fff;font-size:13.5px}
@media(max-width:640px){.filter-search{margin-left:0;width:100%}.filter-search input{width:100%}}

/* ============================================================ FAQ */
.faq-item{background:#fff;border-radius:14px;margin-bottom:10px;border:1px solid var(--border);overflow:hidden}
.faq-q{padding:17px 18px;font-weight:600;display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-size:14.5px}
.faq-q::after{content:'+';font-size:20px;color:var(--primary);font-weight:300}
.faq-item.open .faq-q::after{content:'−'}
.faq-a{padding:0 18px 18px;color:var(--text-light);display:none;font-size:14px}
.faq-item.open .faq-a{display:block}

/* ============================================================ Footer */
footer.site{background:linear-gradient(160deg,#1e1b4b,#312e81);color:#cbd5e1;padding:48px 0 90px;margin-top:36px}
.foot{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:28px;margin-bottom:28px}
.foot h4{color:#fff;margin-bottom:12px;font-size:15px}
.foot ul{list-style:none}
.foot li{margin-bottom:7px;font-size:13.5px}
.foot a:hover{color:#fff}
.foot .brand{display:flex;align-items:center;gap:10px;color:#fff;font-family:'Poppins';font-weight:800;font-size:20px;margin-bottom:10px}
.foot-bottom{text-align:center;border-top:1px solid rgba(255,255,255,.1);padding-top:18px;font-size:12.5px;color:#94a3b8}
@media(max-width:820px){.foot{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.foot{grid-template-columns:1fr}}
@media(max-width:859px){footer.site{padding-bottom:calc(var(--bottom-nav-h) + 30px)}}

/* ============================================================ Cart page (no qty / no shipping — digital goods) */
.cart-item{background:#fff;border:1px solid var(--border);border-radius:16px;padding:14px;display:grid;grid-template-columns:64px 1fr auto;gap:14px;align-items:center;margin-bottom:10px}
.cart-thumb{width:64px;height:64px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.cart-thumb .ico{font-size:26px}
.cart-info h4{font-size:14px;margin-bottom:4px;line-height:1.4}
.cart-total{background:#fff;border-radius:16px;padding:22px;box-shadow:var(--shadow);position:sticky;top:80px}
.cart-total .row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--border);font-size:14px}
.cart-total .row.total{font-size:20px;font-weight:800;color:var(--success-dark);border-bottom:none;padding-top:14px}
@media(max-width:640px){.cart-item{grid-template-columns:56px 1fr}.cart-item .price-col{grid-column:1/3;display:flex;justify-content:space-between;align-items:center;margin-top:6px}}

/* ============================================================ Product Detail Page (PDP) — mobile-app style */
.breadcrumb{font-size:12.5px;color:var(--text-light);margin-bottom:16px}
.pdp{display:grid;grid-template-columns:1fr 1.2fr;gap:36px;background:#fff;padding:26px;border-radius:20px}
.pdp-gallery{border-radius:16px;overflow:hidden;position:relative}
.pdp-img{border-radius:16px;aspect-ratio:1;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.pdp-img::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at 30% 25%,rgba(255,255,255,.35),transparent 65%)}
.pdp-img .ico{font-size:100px;position:relative;z-index:1;filter:drop-shadow(0 6px 16px rgba(0,0,0,.2))}
.pdp-badges{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}
.pdp-badges span{background:var(--bg-alt);color:var(--primary-dark);padding:6px 12px;border-radius:8px;font-size:11.5px;font-weight:600}
.pdp h1{font-size:24px;margin-bottom:8px}
.pdp .price-row{display:flex;align-items:baseline;gap:10px;margin:12px 0}
.pdp .price{font-size:30px;color:var(--success-dark);font-weight:800;font-family:'Poppins'}
.pdp .price small{font-size:16px;text-decoration:line-through;color:var(--text-lighter);font-weight:500}
.pdp .save-tag{background:var(--success-light);color:var(--success-dark);padding:3px 10px;border-radius:6px;font-size:12px;font-weight:700}
.pdp .meta-box{background:var(--bg);padding:14px;border-radius:12px;margin:14px 0;display:flex;flex-wrap:wrap;gap:14px;font-size:13px}
.pdp .meta-box span{display:flex;align-items:center;gap:6px}
.feature-list{list-style:none;margin:16px 0;display:grid;grid-template-columns:1fr 1fr;gap:8px 14px}
.feature-list li{font-size:13.5px;display:flex;align-items:center;gap:8px;color:#334155}
@media(max-width:600px){.feature-list{grid-template-columns:1fr}}
.pdp-cta-row{display:flex;gap:10px;margin-top:18px}
.trust-row{display:flex;gap:16px;color:var(--text-light);font-size:12px;margin-top:16px;flex-wrap:wrap}
.trust-row span{display:flex;align-items:center;gap:5px}
@media(max-width:820px){.pdp{grid-template-columns:1fr;padding:18px;gap:20px}.pdp-cta-row{display:none}}

/* Mobile "app-style" sticky bottom action bar on product page */
.pdp-sticky-bar{display:none}
@media(max-width:820px){
  .pdp-sticky-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:250;
    background:#fff;border-top:1px solid var(--border);padding:10px 14px;
    padding-bottom:calc(10px + env(safe-area-inset-bottom));gap:10px;align-items:center;
    box-shadow:0 -6px 20px rgba(15,23,42,.08);
  }
  .pdp-sticky-bar .price-block{flex-shrink:0}
  .pdp-sticky-bar .price-block .p{font-size:18px;font-weight:800;color:var(--success-dark);font-family:'Poppins'}
  .pdp-sticky-bar .price-block .c{font-size:10.5px;text-decoration:line-through;color:var(--text-lighter)}
  .pdp-sticky-bar .btn{flex:1}
}

/* ============================================================ Bottom mobile nav (app-like) */
.bottom-nav{display:none}
@media(max-width:859px){
  .bottom-nav{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:220;
    background:#fff;border-top:1px solid var(--border);height:var(--bottom-nav-h);
    padding-bottom:env(safe-area-inset-bottom);
    box-shadow:0 -4px 16px rgba(15,23,42,.06);
  }
  .bottom-nav a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:var(--text-lighter);font-size:10.5px;font-weight:600;position:relative}
  .bottom-nav a.active{color:var(--primary)}
  .bottom-nav a svg{width:21px;height:21px}
  .bottom-nav a .bn-badge{position:absolute;top:2px;right:calc(50% - 16px);background:var(--accent);color:#fff;font-size:9px;font-weight:700;min-width:15px;height:15px;border-radius:8px;display:flex;align-items:center;justify-content:center;padding:0 3px}
  body{padding-bottom:var(--bottom-nav-h)}
  body.has-pdp-bar{padding-bottom:calc(var(--bottom-nav-h) + 62px)}
}

/* ============================================================ Auth pages */
.auth-wrap{max-width:420px;margin:50px auto;background:#fff;padding:34px 30px;border-radius:20px;box-shadow:var(--shadow-lg)}
.auth-wrap h1{font-size:24px;margin-bottom:6px;text-align:center}
.auth-wrap .sub{text-align:center;color:var(--text-light);font-size:13.5px;margin-bottom:24px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:11px 13px;border:1.5px solid var(--border);border-radius:10px;font-size:14px}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary)}
.form-error{background:#fee2e2;color:var(--danger);padding:10px 14px;border-radius:10px;font-size:13px;margin-bottom:14px;display:none}
.form-error.show{display:block}

/* ============================================================ Account panel */
.acct{display:grid;grid-template-columns:260px 1fr;gap:22px;margin-top:26px}
.acct-side{background:#fff;border-radius:16px;padding:18px;height:fit-content;box-shadow:var(--shadow-sm)}
.profile-card{text-align:center;padding:18px 0;border-bottom:1px solid var(--border);margin-bottom:12px}
.avatar{width:72px;height:72px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;display:flex;align-items:center;justify-content:center;font-family:'Poppins';font-weight:800;font-size:26px;margin:0 auto 10px}
.profile-name{font-weight:700;font-size:15px}
.profile-tier{display:inline-block;background:var(--bg-alt);color:var(--primary);padding:3px 10px;border-radius:50px;font-size:10.5px;font-weight:600;margin-top:4px}
.nav-link{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:10px;font-size:13.5px;cursor:pointer;color:#334155;font-weight:500;margin-bottom:2px}
.nav-link:hover{background:var(--bg-alt);color:var(--primary)}
.nav-link.active{background:var(--primary);color:#fff}
.nav-link .ic{width:20px;text-align:center}
.acct-main{background:#fff;border-radius:16px;padding:26px;min-height:560px;box-shadow:var(--shadow-sm)}
.tab{display:none}.tab.active{display:block}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:22px}
.stat-card{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;padding:18px;border-radius:14px}
.stat-card:nth-child(2){background:linear-gradient(135deg,var(--success),#4ade80)}
.stat-card:nth-child(3){background:linear-gradient(135deg,var(--accent-dark),var(--accent))}
.stat-card .lbl{font-size:11.5px;opacity:.9}
.stat-card .val{font-size:24px;font-weight:800;font-family:'Poppins';margin-top:4px}
@media(max-width:820px){.acct{grid-template-columns:1fr}.stats-grid{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.stats-grid{grid-template-columns:1fr}}

/* ============================================================ Toast / bubbles */
.toast{position:fixed;bottom:90px;left:50%;transform:translateX(-50%);background:#1e293b;color:#fff;padding:13px 22px;border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.3);font-size:13.5px;opacity:0;transition:.3s;pointer-events:none;z-index:400;max-width:90vw;text-align:center}
.toast.show{opacity:1;bottom:110px}
@media(min-width:860px){.toast{bottom:30px}.toast.show{bottom:50px}}

.float-bubble{position:fixed;bottom:80px;right:18px;background:var(--success);color:#fff;width:50px;height:50px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(37,211,102,.4);z-index:150}
@media(min-width:860px){.float-bubble{bottom:24px}}

/* ============================================================ Chatbot widget */
.chat-fab{position:fixed;bottom:80px;right:78px;width:54px;height:54px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 28px rgba(79,70,229,.4);z-index:150;font-size:24px;transition:.2s}
.chat-fab:hover{transform:scale(1.06)}
@media(min-width:860px){.chat-fab{bottom:24px;right:88px}}
.chat-window{position:fixed;bottom:0;right:0;width:100%;height:100%;max-width:380px;max-height:600px;background:#fff;border-radius:0;box-shadow:0 20px 60px rgba(0,0,0,.3);z-index:400;display:none;flex-direction:column;overflow:hidden}
.chat-window.open{display:flex}
@media(min-width:640px){.chat-window{bottom:24px;right:24px;border-radius:20px;height:70vh}}
.chat-header{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;padding:16px 18px;display:flex;align-items:center;gap:10px}
.chat-header .ch-avatar{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;font-size:18px}
.chat-header .ch-info{flex:1}
.chat-header .ch-info strong{display:block;font-size:14px}
.chat-header .ch-info small{font-size:11px;opacity:.85}
.chat-header .ch-close{width:30px;height:30px;border-radius:50%;background:rgba(255,255,255,.15);display:flex;align-items:center;justify-content:center;color:#fff}
.chat-body{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px;background:var(--bg)}
.chat-msg{max-width:82%;padding:10px 14px;border-radius:14px;font-size:13.5px;line-height:1.5}
.chat-msg.bot{background:#fff;align-self:flex-start;border-bottom-left-radius:4px;box-shadow:var(--shadow-sm)}
.chat-msg.user{background:var(--primary);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.chat-typing{display:flex;gap:4px;padding:12px 14px;background:#fff;border-radius:14px;align-self:flex-start;width:fit-content}
.chat-typing span{width:6px;height:6px;border-radius:50%;background:var(--text-lighter);animation:typing 1.2s infinite}
.chat-typing span:nth-child(2){animation-delay:.2s}
.chat-typing span:nth-child(3){animation-delay:.4s}
@keyframes typing{0%,60%,100%{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}
.chat-suggestions{display:flex;flex-wrap:wrap;gap:6px;padding:0 16px 10px}
.chat-suggestions button{background:#fff;border:1px solid var(--border);padding:7px 12px;border-radius:50px;font-size:12px;color:var(--primary-dark)}
.chat-input-row{display:flex;gap:8px;padding:12px 14px;border-top:1px solid var(--border);background:#fff}
.chat-input-row input{flex:1;padding:11px 14px;border:1.5px solid var(--border);border-radius:50px;font-size:13.5px}
.chat-input-row button{width:42px;height:42px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0}

/* ============================================================ Quick View sidebar (product click) */
.qv-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.55);z-index:500;display:none;opacity:0;transition:opacity .25s ease}
.qv-backdrop.open{display:block;opacity:1}
.qv-panel{position:fixed;top:0;right:0;bottom:0;width:100%;max-width:420px;background:#fff;z-index:501;
  transform:translateX(100%);transition:transform .3s cubic-bezier(.32,.72,0,1);display:flex;flex-direction:column;
  box-shadow:-10px 0 40px rgba(0,0,0,.2)}
.qv-panel.open{transform:translateX(0)}
.qv-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--border);flex-shrink:0}
.qv-head strong{font-size:15px}
.qv-close{width:34px;height:34px;border-radius:50%;background:var(--bg);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.qv-body{flex:1;overflow-y:auto;padding:20px 18px}
.qv-thumb{height:180px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:64px;margin-bottom:16px;position:relative}
.qv-cat{font-size:11.5px;font-weight:700;color:var(--primary);text-transform:uppercase;letter-spacing:.4px}
.qv-name{font-size:18px;font-weight:700;margin:6px 0 10px;line-height:1.35}
.qv-price-row{display:flex;align-items:baseline;gap:10px;margin-bottom:14px}
.qv-price{font-size:26px;font-weight:800;color:var(--success-dark);font-family:'Poppins'}
.qv-compare{font-size:14px;text-decoration:line-through;color:var(--text-lighter)}
.qv-save{background:var(--success-light);color:var(--success-dark);font-size:11.5px;font-weight:700;padding:3px 9px;border-radius:50px}
.qv-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.qv-meta span{background:var(--bg-alt);padding:5px 11px;border-radius:50px;font-size:11.5px;font-weight:600;color:#475569}
.qv-features{list-style:none;padding:0;margin:0 0 16px;display:flex;flex-direction:column;gap:9px}
.qv-features li{font-size:13.5px;padding:9px 12px;background:var(--bg);border-radius:10px;display:flex;align-items:center;gap:8px}
.qv-linkfull{display:inline-flex;align-items:center;gap:5px;font-size:13px;font-weight:600;color:var(--primary)}
.qv-foot{flex-shrink:0;padding:14px 18px;padding-bottom:calc(14px + env(safe-area-inset-bottom));border-top:1px solid var(--border);
  display:flex;gap:10px;background:#fff}
.qv-foot .btn{flex:1;padding:14px;font-size:15px;font-weight:700}
.qv-foot .icon-btn{width:48px;height:48px;flex-shrink:0}
@media(max-width:560px){.qv-panel{max-width:100%}}

/* ============================================================ Instant mini-cart drawer (opens on Add to Cart) */
.cd-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.55);z-index:520;display:none;opacity:0;transition:opacity .25s ease}
.cd-backdrop.open{display:block;opacity:1}
.cd-panel{position:fixed;top:0;right:0;bottom:0;width:100%;max-width:400px;background:#fff;z-index:521;
  transform:translateX(100%);transition:transform .3s cubic-bezier(.32,.72,0,1);display:flex;flex-direction:column;
  box-shadow:-10px 0 40px rgba(0,0,0,.2)}
.cd-panel.open{transform:translateX(0)}
.cd-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--border);flex-shrink:0}
.cd-head strong{font-size:15px;display:flex;align-items:center;gap:8px}
.cd-close{width:34px;height:34px;border-radius:50%;background:var(--bg);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.cd-added-banner{background:var(--success-light);color:var(--success-dark);padding:12px 18px;font-size:13px;font-weight:600;display:flex;align-items:center;gap:8px;flex-shrink:0}
.cd-body{flex:1;overflow-y:auto;padding:14px 18px}
.cd-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--border)}
.cd-item .cd-thumb{width:52px;height:52px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0}
.cd-item .cd-info{flex:1;min-width:0}
.cd-item .cd-name{font-size:13px;font-weight:600;line-height:1.35;margin-bottom:3px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cd-item .cd-cat{font-size:11px;color:var(--text-light)}
.cd-item .cd-price{font-weight:700;font-size:13.5px;color:var(--success-dark);margin-top:4px}
.cd-item .cd-remove{color:var(--text-lighter);flex-shrink:0;padding:4px}
.cd-empty{text-align:center;padding:40px 20px;color:var(--text-light)}
.cd-foot{flex-shrink:0;padding:16px 18px;padding-bottom:calc(16px + env(safe-area-inset-bottom));border-top:1px solid var(--border);background:#fff}
.cd-foot .cd-subtotal-row{display:flex;justify-content:space-between;font-size:14px;margin-bottom:4px}
.cd-foot .cd-subtotal-row strong{font-size:17px;color:var(--success-dark)}
.cd-foot .cd-note{font-size:11px;color:var(--text-light);margin-bottom:12px}
.cd-foot-actions{display:flex;gap:10px}
.cd-foot-actions .btn{flex:1;padding:13px;font-size:14px;font-weight:700}
@media(max-width:560px){.cd-panel{max-width:100%}}

/* ============================================================ Generic content pages */
.page-hero{background:linear-gradient(135deg,#4f46e5,#818cf8);color:#fff;padding:44px 0;text-align:center}
.page-hero h1{font-size:28px}
.page-hero p{opacity:.9;margin-top:6px}
.card{background:#fff;border-radius:16px;padding:24px;box-shadow:var(--shadow-sm)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:700px){.grid-2{grid-template-columns:1fr}}

/* ============================================================ Utility */
.text-center{text-align:center}
.mt-10{margin-top:10px}.mt-20{margin-top:20px}.mb-10{margin-bottom:10px}.mb-20{margin-bottom:20px}
.flex{display:flex}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-10{gap:10px}
.empty-state{background:#fff;padding:50px 24px;border-radius:16px;text-align:center}
.empty-state .emoji{font-size:60px;margin-bottom:14px}
.empty-state h3{margin-bottom:8px}
.empty-state p{color:var(--text-light);margin-bottom:20px}

/* ============================================================ Admin panel */
.admin-body{background:#0f172a;min-height:100vh}
.admin-shell{display:flex;min-height:100vh}
.admin-sidebar{width:250px;background:#111827;color:#cbd5e1;flex-shrink:0;padding:20px 14px;position:sticky;top:0;height:100vh;overflow-y:auto;transition:transform .25s}
.admin-sidebar .a-logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;padding:6px 8px 20px}
.admin-sidebar a{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:10px;font-size:13.5px;font-weight:500;color:#94a3b8;margin-bottom:2px}
.admin-sidebar a:hover{background:#1f2937;color:#fff}
.admin-sidebar a.active{background:var(--primary);color:#fff}
.admin-sidebar .a-section{font-size:10.5px;text-transform:uppercase;letter-spacing:.6px;color:#4b5563;font-weight:700;margin:16px 0 6px 12px}
.admin-main{flex:1;background:var(--bg);min-height:100vh;overflow-x:hidden}
.admin-topbar{background:#fff;padding:14px 24px;display:flex;align-items:center;gap:14px;box-shadow:var(--shadow-sm);position:sticky;top:0;z-index:50}
.admin-topbar h1{font-size:19px}
.admin-content{padding:24px}
.admin-burger{display:flex;width:38px;height:38px;border-radius:8px;background:var(--bg);align-items:center;justify-content:center}
@media(min-width:960px){.admin-burger{display:none}}
@media(max-width:959px){.admin-sidebar{position:fixed;left:0;top:0;bottom:0;z-index:300;transform:translateX(-100%)}.admin-sidebar.open{transform:translateX(0)}}

.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
@media(max-width:960px){.kpi-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.kpi-grid{grid-template-columns:1fr}}
.kpi-card{background:#fff;border-radius:16px;padding:20px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.kpi-card .kpi-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:10px}
.kpi-card .kpi-label{font-size:12px;color:var(--text-light);font-weight:600}
.kpi-card .kpi-value{font-size:24px;font-weight:800;font-family:'Poppins';margin-top:2px}
.kpi-card .kpi-sub{font-size:11.5px;color:var(--text-lighter);margin-top:4px}

.admin-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:20px}
@media(max-width:1100px){.admin-grid{grid-template-columns:1fr}}
.panel{background:#fff;border-radius:16px;padding:20px;box-shadow:var(--shadow-sm);margin-bottom:20px}
.panel h3{font-size:15.5px;margin-bottom:14px}

table.data-table{width:100%;border-collapse:collapse;font-size:13px}
table.data-table th{text-align:left;padding:10px 12px;color:var(--text-light);font-weight:600;border-bottom:2px solid var(--border);font-size:11.5px;text-transform:uppercase;letter-spacing:.3px;white-space:nowrap}
table.data-table td{padding:11px 12px;border-bottom:1px solid var(--border);vertical-align:middle}
table.data-table tr:hover td{background:var(--bg)}
.table-wrap{overflow-x:auto}
.status-pill{padding:3px 10px;border-radius:50px;font-size:11px;font-weight:700;text-transform:capitalize;display:inline-block}
.status-pill.successful{background:var(--success-light);color:var(--success-dark)}
.status-pill.pending{background:#fef3c7;color:#92400e}
.status-pill.failed{background:#fee2e2;color:var(--danger)}
.status-pill.new{background:#dbeafe;color:#1e40af}
.status-pill.read{background:#f1f5f9;color:#475569}
.status-pill.resolved{background:var(--success-light);color:var(--success-dark)}

.admin-toolbar{display:flex;gap:10px;margin-bottom:16px;flex-wrap:wrap;align-items:center}
.admin-toolbar input,.admin-toolbar select{padding:9px 13px;border:1.5px solid var(--border);border-radius:10px;font-size:13.5px}
.pagination{display:flex;gap:6px;align-items:center;justify-content:center;margin-top:16px}
.pagination button{width:32px;height:32px;border-radius:8px;border:1px solid var(--border);background:#fff;font-size:13px}
.pagination button.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.pagination button[disabled]{opacity:.4}

.modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.55);z-index:500;display:none;align-items:center;justify-content:center;padding:20px}
.modal-backdrop.open{display:flex}
.modal{background:#fff;border-radius:18px;max-width:520px;width:100%;max-height:88vh;overflow-y:auto;padding:26px}
.modal h2{font-size:19px;margin-bottom:18px}
.modal-actions{display:flex;gap:10px;margin-top:20px;justify-content:flex-end}

@media(max-width:520px){.admin-content{padding:14px}.panel{padding:16px}}