/* ============================================================
   TechZhop - estilos propios (sin framework)
   Paleta tomada del logo: negro, azul eléctrico y magenta.
   ============================================================ */
:root{
    --bg:#f4f6fb; --surface:#ffffff; --ink:#12131a; --muted:#6b7280;
    --brand:#0a44e6; --brand-dark:#0733b0; --brand-bright:#0d6bff;
    --accent:#f5188a; --accent-dark:#c81271;
    --dark:#0b0d14; --dark-2:#141826;
    --line:#e5e7eb; --ok:#127a3c; --danger:#c0392b;
    --grad:linear-gradient(90deg,#0d6bff 0%,#0a44e6 40%,#a11fb0 70%,#f5188a 100%);
    --radius:10px; --shadow:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.04);
    --maxw:1200px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
    background:var(--bg);color:var(--ink);line-height:1.5;font-size:15px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 16px}
.muted{color:var(--muted)}

/* ---------- Botones ---------- */
.btn{display:inline-block;border:1px solid var(--line);background:var(--surface);
    color:var(--ink);padding:9px 16px;border-radius:8px;cursor:pointer;font-size:14px;
    font-weight:600;transition:.15s}
.btn:hover{background:#eef1f8}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark)}
.btn-gradient{background:var(--grad);border:none;color:#fff}
.btn-gradient:hover{filter:brightness(1.07)}
.btn-block{display:block;width:100%;text-align:center}
.btn-add{width:100%;margin-top:8px;background:#fff;border-color:var(--brand);color:var(--brand)}
.btn-add:hover{background:var(--brand);color:#fff}

/* ---------- Header ---------- */
.site-header{background:var(--dark);box-shadow:0 2px 14px rgba(0,0,0,.25);position:sticky;top:0;z-index:50}
.brandstrip{height:3px;background:var(--grad)}
.header-top{display:flex;align-items:center;gap:16px;padding:9px 16px}
.brand{display:flex;align-items:center;gap:9px;white-space:nowrap;transition:.15s}
.brand:hover{transform:translateY(-1px)}
.brand-logo{width:38px;height:38px;border-radius:50%;flex:none;
    filter:drop-shadow(0 2px 6px rgba(13,107,255,.35))}
.brand-word{font-size:19px;font-weight:800;letter-spacing:.4px;color:#fff;line-height:1}
.brand-word span{color:var(--brand-bright)}
.searchbar{flex:1;display:flex;position:relative;max-width:620px}
.searchbar input{flex:1;border:2px solid var(--brand-bright);border-right:none;border-radius:8px 0 0 8px;
    padding:10px 14px;font-size:15px;outline:none;background:#fff}
.searchbar button{border:none;background:var(--grad);color:#fff;
    border-radius:0 8px 8px 0;padding:0 18px;cursor:pointer;display:flex;align-items:center}
.suggestions{position:absolute;top:calc(100% + 4px);left:0;right:0;background:#fff;
    border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);overflow:hidden;display:none;z-index:60}
.suggestions a{display:block;padding:10px 14px;border-bottom:1px solid var(--line);color:var(--ink)}
.suggestions a:last-child{border-bottom:none}
.suggestions a:hover{background:#eef1f8}
.header-actions{display:flex;align-items:center;gap:18px;white-space:nowrap}
.ha-link{display:flex;flex-direction:column;font-size:12px;color:#9aa4b6}
.ha-link strong{color:#fff;font-size:14px}
.ha-link:hover strong{color:var(--brand-bright)}
.ha-cart{position:relative;color:#fff}
.ha-cart:hover{color:var(--brand-bright)}
.cart-count{position:absolute;top:-8px;right:-10px;background:var(--accent);color:#fff;
    font-size:11px;font-weight:700;min-width:18px;height:18px;border-radius:9px;
    display:flex;align-items:center;justify-content:center;padding:0 4px}
.catbar{background:var(--grad)}
.catbar .container{display:flex;gap:2px;overflow-x:auto}
.catbar a{color:#fff;padding:10px 14px;font-size:14px;white-space:nowrap;font-weight:600;opacity:.95}
.catbar a:hover{opacity:1;background:rgba(0,0,0,.18)}

/* ---------- Layout ---------- */
.page{padding:24px 16px;min-height:60vh}
.block{margin:32px 0}
.block-title{font-size:20px;margin:0 0 16px;position:relative;padding-left:12px}
.block-title::before{content:"";position:absolute;left:0;top:3px;bottom:3px;width:4px;
    border-radius:3px;background:var(--grad)}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:16px}
.breadcrumb a:hover{color:var(--brand)}

/* ---------- Hero ---------- */
.hero{background:var(--dark);color:#fff;border-radius:var(--radius);padding:48px 32px;margin-top:8px;
    position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:
    radial-gradient(circle at 88% 20%,rgba(245,24,138,.35),transparent 45%),
    radial-gradient(circle at 12% 90%,rgba(13,107,255,.35),transparent 45%)}
.hero>*{position:relative;z-index:1}
.hero h1{margin:0 0 10px;font-size:30px}
.hero p{margin:0 0 20px;opacity:.92}
.hero .btn-primary{background:var(--grad);border:none}

/* ---------- Categorías ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.cat-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    padding:22px 14px;text-align:center;font-weight:600;box-shadow:var(--shadow);transition:.15s}
.cat-card:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}

/* ---------- Grid de productos ---------- */
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:16px}
.product-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:.15s}
.product-card:hover{box-shadow:0 8px 22px rgba(10,68,230,.15);border-color:#c9d6f7}
.pc-img{position:relative;aspect-ratio:1;background:#fafbff}
.pc-img img{width:100%;height:100%;object-fit:contain;padding:12px}
.badge{position:absolute;top:8px;left:8px;background:var(--accent);color:#fff;
    font-size:12px;font-weight:700;padding:3px 8px;border-radius:6px}
.pc-body{padding:12px;display:flex;flex-direction:column;flex:1}
.pc-name{font-size:14px;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;
    -webkit-box-orient:vertical;overflow:hidden;min-height:40px}
.pc-name:hover{color:var(--brand)}
.pc-vendor{font-size:12px;color:var(--muted);margin:2px 0}
.pc-price{margin-top:auto;padding-top:6px}
.pc-price strong{font-size:17px;color:var(--brand)}
.pc-price del{font-size:13px;color:var(--muted);margin-left:6px}

/* ---------- Detalle de producto ---------- */
.product-detail{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    padding:24px;box-shadow:var(--shadow)}
.pd-gallery #pdMain{width:100%;aspect-ratio:1;object-fit:contain;background:#fafbff;border-radius:8px}
.pd-thumbs{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.pd-thumbs img{width:64px;height:64px;object-fit:cover;border:1px solid var(--line);
    border-radius:6px;cursor:pointer}
.pd-thumbs img:hover{border-color:var(--brand)}
.pd-info h1{margin:0 0 8px;font-size:24px}
.pd-vendor{font-size:14px;color:var(--muted)}
.pd-vendor a{color:var(--brand)}
.pd-rating{color:var(--accent);font-weight:600}
.pd-price strong{font-size:28px;color:var(--brand)}
.pd-price del{margin-left:10px;color:var(--muted)}
.pd-stock.in{color:var(--ok)}.pd-stock.out{color:var(--danger)}
.pd-actions{display:flex;gap:10px;margin:16px 0}
.pd-actions input{width:80px;padding:9px;border:1px solid var(--line);border-radius:8px}
.pd-desc{margin-top:20px;border-top:1px solid var(--line);padding-top:16px}

/* ---------- Reseñas ---------- */
.review{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:14px;margin-bottom:10px}
.review-head{display:flex;justify-content:space-between}
.stars{color:var(--accent)}

/* ---------- Auth ---------- */
.auth-box{max-width:400px;margin:20px auto;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);border-top:4px solid transparent;
    border-image:var(--grad) 1}
.auth-box h1{margin:0 0 18px;font-size:22px}
.auth-box label{display:block;margin-bottom:14px;font-size:14px;font-weight:600}
.auth-box input,.auth-box select{width:100%;margin-top:6px;padding:10px;border:1px solid var(--line);
    border-radius:8px;font-size:15px;font-weight:400}
.auth-box input:focus,.auth-box select:focus{outline:2px solid var(--brand-bright);border-color:transparent}
.auth-alt{margin-top:16px;font-size:14px;text-align:center}
.auth-alt a{color:var(--brand);font-weight:600}
.alert{padding:10px 14px;border-radius:8px;margin-bottom:12px;font-size:14px}
.alert-error{background:#fde8e6;color:var(--danger);border:1px solid #f5c6c2}

/* ---------- Filtros ---------- */
.filters{display:flex;gap:14px;flex-wrap:wrap;align-items:end;background:var(--surface);
    border:1px solid var(--line);border-radius:var(--radius);padding:14px;margin-bottom:20px}
.filters label{font-size:13px;font-weight:600;display:flex;flex-direction:column;gap:4px}
.filters input,.filters select{padding:8px;border:1px solid var(--line);border-radius:8px}

/* ---------- Carrito ---------- */
.cart-layout{display:grid;grid-template-columns:1fr 320px;gap:24px;align-items:start}
.cart-row{display:grid;grid-template-columns:80px 1fr 90px 110px 30px;gap:12px;align-items:center;
    background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:12px;margin-bottom:12px}
.cart-row img{width:80px;height:80px;object-fit:contain;background:#fafbff;border-radius:6px}
.cart-row-info a{font-weight:600}
.cart-row-info a:hover{color:var(--brand)}
.unit-price{display:block;font-size:13px;color:var(--muted)}
.cart-qty{width:70px;padding:8px;border:1px solid var(--line);border-radius:8px}
.row-subtotal{font-weight:700;text-align:right}
.cart-remove{background:none;border:none;font-size:22px;color:var(--muted);cursor:pointer}
.cart-remove:hover{color:var(--danger)}
.cart-summary{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:18px;
    box-shadow:var(--shadow);position:sticky;top:120px;border-top:4px solid transparent;border-image:var(--grad) 1}
.cs-row{display:flex;justify-content:space-between;padding:8px 0}
.cs-total{border-top:1px solid var(--line);margin-top:8px;padding-top:12px;font-size:18px}
.cart-summary .btn-primary{background:var(--grad);border:none}

/* ---------- Store ---------- */
.store-header{background:var(--dark);color:#fff;border-radius:var(--radius);
    padding:24px;margin-bottom:20px;box-shadow:var(--shadow);border-left:5px solid transparent;border-image:var(--grad) 1}
.store-header h1{margin:0 0 6px}
.store-header a{color:var(--brand-bright)}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:#cdd5df;margin-top:48px;border-top:4px solid transparent;border-image:var(--grad) 1}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px;padding:36px 16px}
.footer-grid h4{color:#fff;margin:0 0 12px;font-size:15px}
.footer-grid a{display:block;padding:3px 0;color:#a9b4c0;font-size:14px}
.footer-grid a:hover{color:var(--brand-bright)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:14px 0;font-size:13px;color:#8b96a3}

/* ---------- Responsive ---------- */
@media(max-width:900px){
    .product-detail{grid-template-columns:1fr}
    .cart-layout{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
    .header-top{flex-wrap:wrap;gap:12px}
    .searchbar{order:3;flex-basis:100%;max-width:none}
    .brand-word{display:none}
    .brand-logo{width:40px;height:40px}
    .hero{padding:32px 20px}.hero h1{font-size:23px}
    .footer-grid{grid-template-columns:1fr}
    .cart-row{grid-template-columns:64px 1fr 30px;grid-template-areas:"img info remove" "img qty sub"}
    .cart-row img{grid-area:img}.cart-row-info{grid-area:info}
    .cart-qty{grid-area:qty}.row-subtotal{grid-area:sub}.cart-remove{grid-area:remove}
}