:root{
  --blue:#0b5cab;
  --blue-d:#084785;
  --blue-l:#e8f2fc;
  --orange:#e85d04;
  --text:#1e293b;
  --muted:#64748b;
  --line:#e2e8f0;
  --bg:#f4f7fb;
  --white:#fff;
  --radius:12px;
  --shadow:0 8px 28px rgba(15,23,42,.08);
  --max:1180px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI",system-ui,-apple-system,sans-serif;color:var(--text);background:var(--bg);line-height:1.55}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
.container{width:min(var(--max),92%);margin:0 auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;padding:.72rem 1.2rem;border-radius:9px;border:none;cursor:pointer;font-weight:600;transition:.18s}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-d)}
.btn-orange{background:var(--orange);color:#fff}
.btn-outline{background:#fff;border:1.5px solid var(--blue);color:var(--blue)}
.btn-sm{padding:.45rem .8rem;font-size:.88rem}
.badge{display:inline-block;padding:.18rem .5rem;border-radius:4px;font-size:.72rem;font-weight:700;text-transform:uppercase}
.badge-sale{background:#fee2e2;color:#b91c1c}
.badge-hot{background:#fef3c7;color:#b45309}
.badge-vigo{background:#dbeafe;color:#1d4ed8}
.badge-gold{background:#fde68a;color:#92400e}
.price{font-weight:800;color:var(--blue);font-size:1.1rem}
.price-old{text-decoration:line-through;color:#94a3b8;font-size:.88rem;margin-right:.35rem}
.price-lg{font-size:1.65rem}

/* Top / Header */
.topbar{background:#0a3d6e;color:#cfe4f7;font-size:.84rem;padding:.4rem 0}
.topbar .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:.4rem}
.topbar a{color:#fff;font-weight:600}
header.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;box-shadow:0 1px 0 rgba(0,0,0,.03)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.85rem 0}
.logo{display:flex;align-items:center;gap:.6rem;font-weight:800;color:var(--blue);font-size:1.05rem}
.logo-mark{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,var(--blue),#38bdf8);display:grid;place-items:center;color:#fff;font-size:.7rem;font-weight:800;line-height:1.1;text-align:center}
.menu{display:flex;align-items:center;gap:1.15rem;font-weight:600;font-size:.93rem;color:#334155}
.menu a:hover,.menu a.active{color:var(--blue)}
.nav-actions{display:flex;align-items:center;gap:.6rem}
.cart-btn{position:relative;background:var(--blue-l);color:var(--blue);border:none;border-radius:9px;padding:.55rem .85rem;font-weight:700;cursor:pointer}
.cart-count{position:absolute;top:-6px;right:-6px;background:var(--orange);color:#fff;font-size:.68rem;min-width:18px;height:18px;border-radius:99px;display:grid;place-items:center}
.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:.45rem .65rem;cursor:pointer}

/* Views */
.view{display:none;min-height:60vh}
.view.active{display:block}

/* Hero */
.hero{background:linear-gradient(115deg,#0b5cab 0 54%,#e0f2fe 54% 100%);color:#fff;padding:2.75rem 0 3rem}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:2rem;align-items:center}
.hero h1{font-size:clamp(1.7rem,3.4vw,2.55rem);line-height:1.2;margin:.55rem 0 1rem}
.hero p{opacity:.95;max-width:34rem;margin-bottom:1.25rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:.7rem}
.hero-card{background:rgba(255,255,255,.12);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.25);border-radius:16px;padding:1rem}
.hero-card img{width:100%;height:260px;object-fit:contain;background:rgba(255,255,255,.85);border-radius:12px}

/* Trust */
.trust{margin-top:-1.4rem;position:relative;z-index:2}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:1.1rem;border:1px solid var(--line)}
.trust-item{text-align:center;padding:.4rem}
.trust-item strong{display:block;color:var(--blue);font-size:1.02rem}
.trust-item span{font-size:.8rem;color:var(--muted)}

/* Sections */
.section{padding:2.75rem 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:1rem;margin-bottom:1.25rem;flex-wrap:wrap}
.section-head h2{font-size:1.55rem}
.section-head p{color:var(--muted);font-size:.95rem}

/* Product grid */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.05rem}
.prod-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.18s;cursor:pointer}
.prod-card:hover{box-shadow:var(--shadow);border-color:#93c5fd;transform:translateY(-2px)}
.prod-card .thumb{position:relative;background:#f8fafc;aspect-ratio:1;display:grid;place-items:center;padding:.75rem}
.prod-card .thumb img{max-height:100%;object-fit:contain}
.prod-card .badges{position:absolute;top:.55rem;left:.55rem;display:flex;flex-direction:column;gap:.3rem}
.prod-card .body{padding:.9rem;display:flex;flex-direction:column;gap:.35rem;flex:1}
.prod-card h3{font-size:.95rem;line-height:1.35;min-height:2.6em}
.prod-card .meta{font-size:.78rem;color:var(--muted)}
.prod-card .foot{margin-top:auto;padding-top:.5rem;display:flex;flex-direction:column;gap:.55rem}
.prod-card .actions{display:flex;gap:.4rem}
.prod-card .actions .btn{flex:1}

/* Catalog layout */
.catalog{display:grid;grid-template-columns:250px 1fr;gap:1.25rem;padding:1.5rem 0 3rem}
.filters{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.1rem;height:fit-content;position:sticky;top:78px}
.filters h3{font-size:.95rem;margin-bottom:.7rem}
.filter-group{margin-bottom:1rem}
.filter-group label{display:flex;align-items:center;gap:.45rem;font-size:.88rem;color:#475569;margin:.32rem 0;cursor:pointer}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:.75rem;margin-bottom:1rem;flex-wrap:wrap}
.toolbar select,.filters select,form input,form select,form textarea{
  width:100%;padding:.62rem .75rem;border:1px solid #cbd5e1;border-radius:8px;background:#fff
}
.toolbar select{width:auto;min-width:180px}

/* Detail */
.detail{padding:1.5rem 0 3rem}
.crumb{font-size:.85rem;color:var(--muted);margin-bottom:1rem}
.crumb a{color:var(--blue)}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:2rem}
.detail-gallery{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1rem}
.detail-gallery img{width:100%;height:380px;object-fit:contain;background:#f8fafc;border-radius:10px}
.detail-info{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.35rem}
.detail-info h1{font-size:1.45rem;margin-bottom:.4rem}
.sku{font-size:.85rem;color:var(--muted);margin-bottom:.75rem}
.price-box{background:var(--blue-l);border-radius:10px;padding:1rem;margin:1rem 0}
.save{font-size:.88rem;color:#b91c1c;font-weight:600;margin-top:.25rem}
.qty-row{display:flex;align-items:center;gap:.65rem;margin:1rem 0}
.qty-row input{width:70px;text-align:center}
.detail-actions{display:flex;flex-wrap:wrap;gap:.55rem}
.spec-table{width:100%;border-collapse:collapse;margin-top:1rem;font-size:.9rem}
.spec-table th,.spec-table td{border:1px solid var(--line);padding:.55rem .7rem;text-align:left}
.spec-table th{background:#f8fafc;width:38%;font-weight:600}
.detail-desc{margin-top:1.5rem;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem}
.detail-desc ul{padding-left:1.15rem;color:#475569;margin-top:.5rem}
.detail-desc li{margin:.3rem 0}
.source-note{margin-top:1rem;font-size:.82rem;color:var(--muted);background:#f8fafc;padding:.75rem;border-radius:8px;border-left:3px solid var(--blue)}

/* About / Contact / Cart */
.page-hero{background:linear-gradient(120deg,#0f172a,var(--blue));color:#fff;padding:2.4rem 0}
.page-hero h1{font-size:1.8rem;margin-bottom:.4rem}
.page-hero p{opacity:.92;max-width:40rem}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem;box-shadow:0 2px 8px rgba(0,0,0,.03)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:1.25rem}
.feature-grid .card h3{color:var(--blue);margin-bottom:.35rem;font-size:1rem}
.feature-grid .card p{font-size:.9rem;color:var(--muted)}
form label{display:block;font-size:.85rem;font-weight:600;margin:.65rem 0 .3rem}
form .btn{margin-top:1rem;width:100%}
.hotline-big{font-size:1.8rem;font-weight:800;color:var(--blue);margin:.3rem 0}

/* Cart */
.cart-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.cart-table th,.cart-table td{padding:.85rem;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
.cart-table th{background:#f8fafc;font-size:.82rem;color:var(--muted);text-transform:uppercase}
.cart-table img{width:64px;height:64px;object-fit:contain;background:#f8fafc;border-radius:8px}
.cart-summary{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem;height:fit-content}
.cart-summary .row{display:flex;justify-content:space-between;margin:.45rem 0;font-size:.95rem}
.cart-summary .total{font-size:1.2rem;font-weight:800;color:var(--blue);border-top:1px solid var(--line);padding-top:.75rem;margin-top:.75rem}

/* Footer */
footer.site-footer{background:#0f172a;color:#94a3b8;padding:2.25rem 0 1.25rem;margin-top:2rem;font-size:.9rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:1.5rem;margin-bottom:1.5rem}
.site-footer h4{color:#fff;margin-bottom:.6rem;font-size:.95rem}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid #1e293b;padding-top:1rem;font-size:.8rem}

/* Toast */
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%) translateY(80px);background:#0f172a;color:#fff;padding:.75rem 1.2rem;border-radius:999px;font-size:.9rem;font-weight:600;opacity:0;transition:.25s;z-index:100;pointer-events:none}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* Empty */
.empty{text-align:center;padding:3rem 1rem;color:var(--muted)}
.empty h3{color:var(--text);margin-bottom:.5rem}

@media(max-width:980px){
  .hero{background:linear-gradient(180deg,#0b5cab 0 62%,#e0f2fe 62% 100%)}
  .hero-grid,.detail-grid,.catalog,.grid-2,.footer-grid,.trust-grid{grid-template-columns:1fr}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:1fr}
  .filters{position:static}
  .menu{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;flex-direction:column;padding:1rem;border-bottom:1px solid var(--line);align-items:flex-start}
  .menu.open{display:flex}
  .menu-toggle{display:block}
  .nav{position:relative}
}
@media(max-width:520px){
  .prod-grid{grid-template-columns:1fr}
  .hero-card img{height:200px}
}