/* TwinTech storefront */
:root{
  --green:#0b7a3e;--green-d:#08602f;--green-l:#e7f5ed;--navy:#0f172a;--navy-2:#1e293b;--ink:#1f2937;--muted:#64748b;
  --line:#e2e8f0;--bg:#f6f8f7;--card:#fff;--amber:#d97706;--red:#dc2626;--radius:12px;--shadow:0 1px 2px rgba(15,23,42,.05),0 6px 20px rgba(15,23,42,.06);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Plus Jakarta Sans",system-ui,-apple-system,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.55}
a{color:var(--green);text-decoration:none}a:hover{color:var(--green-d)}
img{max-width:100%;display:block}
h1,h2,h3,h4{color:var(--navy);line-height:1.25;margin:0 0 .5em}
.wrap{max-width:1240px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}.small{font-size:.85rem}.right{text-align:right}.center{text-align:center}

/* Top bar + header */
.topbar{background:var(--navy);color:#cbd5e1;font-size:.8rem}
.topbar .wrap{display:flex;gap:18px;justify-content:space-between;align-items:center;padding-top:7px;padding-bottom:7px;flex-wrap:wrap}
.topbar a{color:#e2e8f0}.topbar .tb-left{display:flex;gap:18px;flex-wrap:wrap}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.site-header .wrap{display:flex;align-items:center;gap:22px;padding-top:12px;padding-bottom:12px}
.logo img{height:46px;width:auto}
.search{flex:1;display:flex;max-width:560px;border:2px solid var(--green);border-radius:999px;overflow:hidden;background:#fff}
.search input{flex:1;border:0;padding:10px 16px;font:inherit;outline:none;min-width:0}
.search button{border:0;background:var(--green);color:#fff;padding:0 20px;font-weight:700;cursor:pointer}
.hdr-actions{display:flex;gap:6px;align-items:center;margin-left:auto}
.hdr-actions a{display:flex;align-items:center;gap:6px;color:var(--navy);font-weight:600;padding:8px 12px;border-radius:10px;font-size:.92rem}
.hdr-actions a:hover{background:var(--green-l)}
.cart-pill{position:relative}.cart-pill .count{background:var(--green);color:#fff;border-radius:999px;font-size:.72rem;padding:1px 7px;font-weight:700}
.mainnav{background:#fff;border-bottom:1px solid var(--line)}
.mainnav .wrap{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none}
.mainnav a{color:var(--navy);padding:11px 14px;font-weight:600;font-size:.92rem;white-space:nowrap;border-bottom:3px solid transparent}
.mainnav a:hover,.mainnav a.active{color:var(--green);border-bottom-color:var(--green)}
.menu-btn{display:none;background:none;border:0;font-size:1.5rem;cursor:pointer;color:var(--navy)}

/* Buttons & forms */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:10px;padding:11px 20px;font:inherit;font-weight:700;cursor:pointer;background:var(--green);color:#fff;transition:.15s;text-align:center}
.btn:hover{background:var(--green-d);color:#fff}
.btn-dark{background:var(--navy)}.btn-dark:hover{background:#000}
.btn-light{background:#eef2f1;color:var(--navy)}.btn-light:hover{background:#e2e8f0;color:var(--navy)}
.btn-outline{background:transparent;border:2px solid var(--green);color:var(--green)}.btn-outline:hover{background:var(--green);color:#fff}
.btn-sm{padding:7px 12px;font-size:.85rem}.btn-block{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed}
label{display:block;font-weight:600;font-size:.88rem;margin:0 0 5px;color:var(--navy)}
.input,input:not([type]),input[type=text],input[type=email],input[type=password],input[type=number],input[type=tel],input[type=date],input[type=month],input[type=search],select,textarea{width:100%;padding:11px 13px;border:1px solid #cbd5e1;border-radius:10px;font:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid rgba(11,122,62,.25);border-color:var(--green)}
.field{margin-bottom:14px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.alert{padding:12px 16px;border-radius:10px;margin:0 0 16px;font-weight:500}
.alert-success{background:#dcfce7;color:#166534}.alert-error{background:#fee2e2;color:#991b1b}.alert-info{background:#e0f2fe;color:#075985}.alert-warning{background:#fef3c7;color:#92400e}

/* Cards / sections */
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}
.section{padding:34px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:18px;gap:12px}
.section-head h2{margin:0;font-size:1.45rem}
.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:.72rem;font-weight:700;letter-spacing:.02em}
.badge-green{background:#dcfce7;color:#166534}.badge-amber{background:#fef3c7;color:#92400e}.badge-red{background:#fee2e2;color:#991b1b}
.badge-blue{background:#dbeafe;color:#1e40af}.badge-grey{background:#f1f5f9;color:#475569}.badge-teal{background:#ccfbf1;color:#115e59}.badge-purple{background:#ede9fe;color:#5b21b6}

/* Hero */
.hero{position:relative;border-radius:18px;overflow:hidden;margin-top:22px;min-height:340px;background:var(--navy)}
.hero .slide{position:absolute;inset:0;display:flex;align-items:center;opacity:0;transition:opacity .8s;background-size:cover;background-position:center}
.hero .slide.on{opacity:1}
.hero .slide::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(15,23,42,.92) 10%,rgba(15,23,42,.55) 55%,rgba(11,122,62,.25))}
.hero .copy{position:relative;color:#fff;padding:40px 48px;max-width:620px}
.hero h1{color:#fff;font-size:2.3rem;margin-bottom:12px}.hero p{color:#cbd5e1;font-size:1.05rem;margin:0 0 22px}
.hero .dots{position:absolute;bottom:16px;left:48px;display:flex;gap:8px;z-index:2}
.hero .dots button{width:10px;height:10px;border-radius:50%;border:0;background:rgba(255,255,255,.4);cursor:pointer;padding:0}.hero .dots button.on{background:#fff;width:26px;border-radius:6px}
.perks{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}
.perk{background:#fff;border-radius:12px;padding:16px;display:flex;gap:12px;align-items:center;box-shadow:var(--shadow)}
.perk .ic{width:42px;height:42px;border-radius:10px;background:var(--green-l);display:grid;place-items:center;font-size:1.25rem;flex:none}
.perk b{display:block;color:var(--navy);font-size:.92rem}.perk span{font-size:.8rem;color:var(--muted)}

/* Category tiles */
.cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
.cat-tile{background:#fff;border-radius:12px;padding:16px;gap:8px;box-shadow:var(--shadow);color:var(--navy);font-weight:700;display:flex;justify-content:space-between;align-items:center}
.cat-tile:hover{outline:2px solid var(--green);color:var(--green)}
.cat-tile small{color:var(--muted);font-weight:500}

/* Product grid */
.products{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.pcard{background:#fff;border-radius:14px;box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;position:relative;transition:transform .15s}
.pcard:hover{transform:translateY(-3px)}
.pcard .thumb{aspect-ratio:1/1;background:#f8fafc;display:grid;place-items:center;padding:14px}
.pcard .thumb img{max-height:100%;object-fit:contain;width:100%;height:100%}
.pcard .body{padding:12px 14px 14px;display:flex;flex-direction:column;flex:1}
.pcard .cat{font-size:.72rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.pcard h3{font-size:.95rem;margin:4px 0 8px;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.5em}
.pcard h3 a{color:var(--navy)}
.price{font-weight:800;color:var(--green);font-size:1.1rem}.was{color:var(--muted);text-decoration:line-through;font-size:.85rem;margin-left:6px;font-weight:500}
.pcard .tag{position:absolute;top:10px;left:10px}
.pcard .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:8px;padding-top:10px}
.stock-ok{color:#15803d;font-size:.78rem;font-weight:600}.stock-low{color:var(--amber);font-size:.78rem;font-weight:600}.stock-out{color:var(--red);font-size:.78rem;font-weight:600}
.add-btn{border:0;background:var(--navy);color:#fff;border-radius:10px;padding:8px 12px;font-weight:700;cursor:pointer;font:inherit;font-size:.85rem}
.add-btn:hover{background:var(--green)}

/* Shop layout */
.shop{display:grid;grid-template-columns:250px 1fr;gap:22px;padding:24px 0}
.filters .card{padding:18px}.filters h4{font-size:.9rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin-top:4px}
.filters a{display:flex;justify-content:space-between;padding:6px 8px;border-radius:8px;color:var(--navy);font-size:.92rem}
.filters a.on,.filters a:hover{background:var(--green-l);color:var(--green)}
.filters .sub{padding-left:14px;font-size:.86rem}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.toolbar select{width:auto}
.pager{display:flex;gap:6px;justify-content:center;margin:24px 0;flex-wrap:wrap}
.pager a,.pager span{min-width:38px;padding:8px 10px;border-radius:9px;background:#fff;box-shadow:var(--shadow);text-align:center;color:var(--navy);font-weight:600}
.pager a.active{background:var(--green);color:#fff}

/* Product detail */
.pd{display:grid;grid-template-columns:1.05fr 1fr;gap:32px;padding:26px 0}
.gallery .main{background:#fff;border-radius:16px;box-shadow:var(--shadow);aspect-ratio:1/1;display:grid;place-items:center;padding:24px}
.gallery .main img{max-height:100%;object-fit:contain}
.gallery .thumbs{display:flex;gap:10px;margin-top:12px}
.gallery .thumbs img{width:76px;height:76px;object-fit:contain;background:#fff;border-radius:10px;padding:6px;cursor:pointer;border:2px solid transparent;box-shadow:var(--shadow)}
.gallery .thumbs img.on{border-color:var(--green)}
.pd h1{font-size:1.7rem}.pd .price{font-size:1.8rem}
.pd .meta{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;font-size:.9rem;margin:18px 0}
.pd .meta dt{color:var(--muted)}.pd .meta dd{margin:0;font-weight:600}
.qty{display:inline-flex;border:1px solid #cbd5e1;border-radius:10px;overflow:hidden}
.qty button{border:0;background:#f1f5f9;width:40px;font-size:1.2rem;cursor:pointer}
.qty input{width:56px;border:0;text-align:center;border-radius:0}
.buybox{display:flex;gap:12px;align-items:center;margin:18px 0;flex-wrap:wrap}
.desc{white-space:pre-line}
.note-reg{background:var(--green-l);border-radius:10px;padding:10px 14px;font-size:.88rem;color:#14532d}

/* Cart & checkout */
.table{width:100%;border-collapse:collapse}
.table th{font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);text-align:left;padding:10px;border-bottom:2px solid var(--line)}
.table td{padding:12px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
.cart-item{display:flex;gap:12px;align-items:center}
.cart-item img{width:56px;height:56px;object-fit:contain;background:#f8fafc;border-radius:10px;padding:4px}
.layout-2{display:grid;grid-template-columns:1fr 360px;gap:22px;padding:24px 0;align-items:start}
.layout-2>aside.summary{position:sticky;top:96px}
.summary .row{display:flex;justify-content:space-between;padding:6px 0}
.summary .total{border-top:2px solid var(--line);margin-top:6px;padding-top:12px;font-size:1.2rem;font-weight:800;color:var(--navy)}
.paymethods{display:grid;gap:10px}
.paym{display:flex;gap:12px;align-items:flex-start;border:2px solid var(--line);border-radius:12px;padding:14px;cursor:pointer;font-weight:500}
.paym input{margin-top:4px;accent-color:var(--green)}
.paym:has(input:checked){border-color:var(--green);background:var(--green-l)}
.paym b{color:var(--navy)}.paym .muted{font-size:.85rem}
.momo-box{background:#fff8e6;border:1px dashed #f59e0b;border-radius:12px;padding:14px;margin-top:12px;font-size:.92rem}
.steps{display:flex;gap:6px;margin:6px 0 18px;flex-wrap:wrap}
.steps span{flex:1;min-width:110px;text-align:center;padding:8px;border-radius:8px;background:#e2e8f0;font-size:.8rem;font-weight:700;color:var(--muted)}
.steps span.on{background:var(--green);color:#fff}

/* Testimonials, brands, CTA */
.brands{display:grid;grid-template-columns:repeat(8,1fr);gap:12px;align-items:center}
.brands div{background:#fff;border-radius:12px;padding:14px;height:76px;display:grid;place-items:center;box-shadow:var(--shadow)}
.brands img{max-height:44px;object-fit:contain;filter:grayscale(1);opacity:.8;transition:.2s}.brands div:hover img{filter:none;opacity:1}
.testis{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.testi{background:#fff;border-radius:14px;padding:20px;box-shadow:var(--shadow)}.testi .stars{color:#f59e0b;letter-spacing:2px}
.cta{background:linear-gradient(120deg,var(--navy),#123e2c);color:#fff;border-radius:18px;padding:34px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.cta h2{color:#fff;margin:0 0 6px}.cta p{margin:0;color:#cbd5e1}
.services{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.scard{background:#fff;border-radius:14px;overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.scard .simg{height:150px;background:linear-gradient(135deg,var(--navy),var(--green));display:grid;place-items:center;color:#fff;font-size:2.4rem}
.scard .simg img{width:100%;height:100%;object-fit:cover}
.scard .body{padding:16px;display:flex;flex-direction:column;flex:1}.scard .body p{color:var(--muted);font-size:.9rem;flex:1}

/* Account */
.acct{display:grid;grid-template-columns:230px 1fr;gap:22px;padding:24px 0}
.acct nav a{display:block;padding:10px 12px;border-radius:9px;color:var(--navy);font-weight:600}
.acct nav a.on,.acct nav a:hover{background:var(--green-l);color:var(--green)}
.stat{background:#fff;border-radius:12px;padding:16px;box-shadow:var(--shadow)}.stat b{display:block;font-size:1.35rem;color:var(--navy)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:18px}
.timeline{list-style:none;padding:0;margin:0}.timeline li{padding:0 0 14px 22px;position:relative;border-left:2px solid var(--line);margin-left:6px}
.timeline li::before{content:"";position:absolute;left:-7px;top:3px;width:12px;height:12px;border-radius:50%;background:var(--green)}
.auth-box{max-width:440px;margin:40px auto}

/* Footer */
.site-footer{background:var(--navy);color:#94a3b8;margin-top:40px;padding:40px 0 0;font-size:.9rem}
.site-footer h4{color:#fff;font-size:1rem}
.site-footer a{color:#cbd5e1;display:block;padding:3px 0}.site-footer a:hover{color:#fff}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:28px}
.fbottom{border-top:1px solid var(--navy-2);margin-top:28px;padding:16px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.82rem}
.paylogos{display:flex;gap:8px;flex-wrap:wrap}.paylogos span{background:#1e293b;color:#e2e8f0;border-radius:6px;padding:4px 9px;font-size:.75rem;font-weight:700}
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%) translateY(120px);background:var(--navy);color:#fff;padding:12px 20px;border-radius:12px;box-shadow:var(--shadow);transition:.3s;z-index:99;font-weight:600}
.toast.show{transform:translateX(-50%) translateY(0)}

@media (max-width:1000px){
  .shop,.acct{grid-template-columns:1fr}.layout-2{grid-template-columns:1fr}.pd{grid-template-columns:1fr}
  .perks{grid-template-columns:repeat(2,1fr)}.brands{grid-template-columns:repeat(4,1fr)}.testis{grid-template-columns:1fr}
  .fgrid{grid-template-columns:1fr 1fr}.filters{order:2}
}
@media (max-width:700px){
  .site-header .wrap{flex-wrap:wrap;gap:10px}.search{order:3;max-width:none;flex-basis:100%}
  .hdr-actions .lbl{display:none}.menu-btn{display:block}
  .mainnav{display:none}.mainnav.open{display:block}.mainnav .wrap{flex-direction:column}
  .hero{min-height:300px}.hero .copy{padding:28px 22px}.hero h1{font-size:1.6rem}.hero .dots{left:22px}
  .products{grid-template-columns:repeat(2,1fr);gap:10px}.pcard .body{padding:10px}.add-btn{padding:7px 9px}
  .grid2,.stats{grid-template-columns:1fr}.fgrid{grid-template-columns:1fr}.topbar .tb-right{display:none}.topbar{font-size:.72rem}
  .table.stack thead{display:none}.table.stack tr{display:block;border-bottom:1px solid var(--line);padding:8px 0}.table.stack td{display:flex;justify-content:space-between;border:0;padding:5px 4px}
  .table.stack td[data-l]::before{content:attr(data-l);color:var(--muted);font-size:.8rem}
}
/* Sign in / register */
.auth-wrap{padding:28px 20px 10px}
.auth-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:22px;align-items:start}
.auth-card h1{font-size:1.4rem}
.auth-tabs{display:none}
@media (max-width:860px){
  .auth-grid{grid-template-columns:1fr}
  .auth-tabs{display:flex;background:#fff;border-radius:12px;padding:5px;box-shadow:var(--shadow);margin-bottom:14px}
  .auth-tabs a{flex:1;text-align:center;padding:10px;border-radius:9px;font-weight:700;color:var(--navy)}
  .auth-tabs a.on{background:var(--green);color:#fff}
  .auth-grid[data-tab=login] #regCard,.auth-grid[data-tab=register] #loginCard{display:none}
}