*{box-sizing:border-box}
:root{
  --primary:#0f172a;
  --secondary:#1d4ed8;
  --accent:#f59e0b;
  --danger:#dc2626;
  --text:#1f2937;
  --muted:#6b7280;
  --light:#f8fafc;
  --border:#e5e7eb;
  --white:#ffffff;
  --radius:18px;
  --shadow:0 12px 35px rgba(15,23,42,.08);
}
html,body{margin:0;padding:0;font-family:Arial,Helvetica,sans-serif;color:var(--text);background:#fff}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{width:min(1180px,92%);margin:auto}
.w-100{width:100%}
.mb-24{margin-bottom:24px}

.topbar{background:var(--primary);color:#fff;font-size:14px}
.topbar-wrap{display:flex;justify-content:space-between;gap:20px;padding:10px 0}
.topbar-links{display:flex;gap:18px;flex-wrap:wrap}
.topbar a{color:#fff;opacity:.95}

.main-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 0}
.brand{display:flex;align-items:center;gap:12px}
.brand-badge{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--secondary),#60a5fa);color:#fff;display:grid;place-items:center;font-weight:800;font-size:22px}
.brand small{display:block;color:var(--muted)}
.nav-links{display:flex;align-items:center;gap:22px}
.nav-links a{font-weight:700}
.cart-badge{display:flex;align-items:center;gap:8px;background:var(--primary);color:#fff;padding:10px 14px;border-radius:999px}
.cart-badge span{background:#fff;color:var(--primary);min-width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:700}
.menu-toggle{display:none;border:1px solid var(--border);background:#fff;border-radius:10px;padding:8px 12px;font-size:24px}

.hero-section{padding:38px 0;background:linear-gradient(180deg,#eff6ff 0%,#fff 100%)}
.hero-grid{display:grid;grid-template-columns:1.4fr .8fr;gap:24px}
.hero-main{min-height:430px;background:
linear-gradient(135deg,rgba(15,23,42,.86),rgba(29,78,216,.72)),
url('https://images.unsplash.com/photo-1483985988355-763728e1935b?auto=format&fit=crop&w=1200&q=80') center/cover;border-radius:28px;box-shadow:var(--shadow)}
.hero-content{padding:54px;max-width:640px;color:#fff}
.hero-content h1{font-size:clamp(36px,5vw,60px);line-height:1.03;margin:12px 0 16px}
.hero-content p{font-size:18px;line-height:1.7;color:rgba(255,255,255,.92)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.hero-side{display:grid;gap:24px}
.promo-card{background:#fff;border:1px solid var(--border);border-radius:24px;padding:28px;box-shadow:var(--shadow)}
.promo-card h3{margin:0 0 10px;font-size:24px}
.promo-card p{margin:0;color:var(--muted);line-height:1.7}

.badge-soft,.mini-title{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.7px;text-transform:uppercase;background:#dbeafe;color:#1d4ed8;border-radius:999px;padding:8px 14px}
.section-space{padding:70px 0}
.bg-light-proca{background:var(--light)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:26px}
.section-head h2{margin:10px 0 0;font-size:36px}
.section-link{font-weight:700;color:var(--secondary)}

.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.category-card{background:#fff;border:1px solid var(--border);border-radius:22px;padding:24px;box-shadow:var(--shadow);transition:.25s}
.category-card:hover,.product-card:hover{transform:translateY(-4px)}
.category-card h3{margin:0 0 8px}
.category-card p{margin:0;color:var(--muted);line-height:1.6}

.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.product-card{background:#fff;border:1px solid var(--border);border-radius:22px;overflow:hidden;box-shadow:var(--shadow);transition:.25s}
.product-image-wrap{aspect-ratio:1/1;background:#f3f4f6}
.product-image-wrap img{width:100%;height:100%;object-fit:cover}
.product-card-body{padding:18px}
.product-card h3{font-size:18px;margin:0 0 8px}
.product-card h3 a{color:var(--text)}
.product-category{font-size:12px;color:var(--secondary);font-weight:700;text-transform:uppercase;margin-bottom:8px}
.product-price{font-size:20px;font-weight:800;color:var(--primary);margin:8px 0 16px}
.product-price.big{font-size:34px}

.btn-primary-proca,.btn-outline-proca{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:14px 20px;font-weight:800;border:none;cursor:pointer}
.btn-primary-proca{background:linear-gradient(135deg,var(--secondary),#2563eb);color:#fff}
.btn-outline-proca{background:#fff;color:var(--primary);border:1px solid var(--border)}

.page-banner{padding:54px 0;background:linear-gradient(180deg,#f8fafc,#fff);border-bottom:1px solid var(--border)}
.page-banner h1{font-size:44px;margin:10px 0 12px}
.page-banner p{color:var(--muted);max-width:700px;line-height:1.7}

.shop-layout{display:grid;grid-template-columns:300px 1fr;gap:28px}
.filter-box,.content-box,.checkout-summary,.checkout-form-box,.empty-box{background:#fff;border:1px solid var(--border);border-radius:22px;padding:24px;box-shadow:var(--shadow)}
.filter-box{margin-bottom:18px}
.filter-box h3{margin:0 0 14px}
.filter-box input,.filter-box select,.checkout-form input,.checkout-form textarea,.checkout-form select,.buy-box input,.cart-table input{width:100%;padding:14px 16px;border:1px solid #d1d5db;border-radius:14px;font-size:15px;outline:none}
.filter-box input:focus,.checkout-form input:focus,.checkout-form textarea:focus,.checkout-form select:focus,.buy-box input:focus,.cart-table input:focus{border-color:#60a5fa;box-shadow:0 0 0 3px rgba(96,165,250,.2)}
.cat-link{display:block;padding:12px 14px;border-radius:14px;color:var(--text);font-weight:700}
.cat-link.active,.cat-link:hover{background:#eff6ff;color:var(--secondary)}

.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
.product-detail-image img{width:100%;border-radius:24px;box-shadow:var(--shadow)}
.product-detail-info h1{font-size:42px;margin:10px 0 10px}
.product-detail-info p{color:var(--muted);line-height:1.8}
.buy-box{display:flex;gap:12px;align-items:end;flex-wrap:wrap;margin:24px 0}
.buy-box label{display:block;width:100%;font-weight:700}
.buy-box input{max-width:120px}
.product-meta{display:grid;gap:10px;padding-top:14px;border-top:1px solid var(--border)}

.cart-table-wrap{overflow:auto;background:#fff;border:1px solid var(--border);border-radius:22px;box-shadow:var(--shadow)}
.cart-table{width:100%;border-collapse:collapse}
.cart-table th,.cart-table td{padding:18px;border-bottom:1px solid var(--border);text-align:left}
.cart-product{display:flex;align-items:center;gap:14px}
.cart-product img{width:76px;height:76px;object-fit:cover;border-radius:16px}
.cart-actions,.checkout-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.checkout-box{margin-top:24px;background:#fff;border:1px solid var(--border);border-radius:22px;padding:24px;box-shadow:var(--shadow)}

.checkout-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}
.checkout-form{display:grid;gap:16px}
.checkout-form label{display:block;margin-bottom:8px;font-weight:700}
.checkout-form textarea{min-height:120px;resize:vertical}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.note-box{padding:14px 16px;background:#eff6ff;border:1px solid #bfdbfe;color:#1e40af;border-radius:16px}
.summary-line,.summary-total{display:flex;justify-content:space-between;gap:14px;padding:12px 0;border-bottom:1px solid var(--border)}
.summary-total{font-size:22px;font-weight:800;border-bottom:none;padding-top:16px}

.alert-proca{padding:14px 16px;border-radius:16px;margin-bottom:18px}
.alert-proca.error{background:#fef2f2;border:1px solid #fecaca;color:#991b1b}
.success-box{text-align:center}
.empty-box p{color:var(--muted);line-height:1.7}
.empty-box strong{display:block;font-size:24px;margin-bottom:10px}

.site-footer{background:var(--primary);color:#fff;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px;padding:56px 0}
.site-footer h3,.site-footer h4{margin-top:0}
.site-footer p,.site-footer li{color:rgba(255,255,255,.82);line-height:1.8}
.site-footer ul{list-style:none;padding:0;margin:0}
.footer-copy{border-top:1px solid rgba(255,255,255,.08);padding:16px 0;color:rgba(255,255,255,.8)}

.admin-login-body{min-height:100vh;display:grid;place-items:center;background:linear-gradient(180deg,#eff6ff,#f8fafc)}
.admin-login-card{width:min(460px,92%);background:#fff;border:1px solid var(--border);padding:28px;border-radius:24px;box-shadow:var(--shadow)}
.admin-login-card h1{margin-top:0}
.login-help{margin-top:18px;color:var(--muted);font-size:14px}

.admin-body{display:grid;grid-template-columns:270px 1fr;min-height:100vh;background:#f8fafc}
.admin-sidebar{background:var(--primary);padding:28px;display:flex;flex-direction:column;gap:14px}
.admin-sidebar h2{color:#fff;margin-top:0}
.admin-sidebar a{color:#e5edff;font-weight:700;padding:12px 14px;border-radius:14px}
.admin-sidebar a:hover{background:rgba(255,255,255,.08)}
.admin-main{padding:34px}
.admin-head h1{margin:0 0 6px}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:24px 0}
.stat-card{background:#fff;border:1px solid var(--border);border-radius:22px;padding:24px;box-shadow:var(--shadow)}
.stat-card span{display:block;color:var(--muted);margin-bottom:8px}
.stat-card strong{font-size:38px}

@media (max-width: 1024px){
  .hero-grid,.shop-layout,.product-detail,.checkout-layout,.footer-grid,.admin-body{grid-template-columns:1fr}
  .product-grid,.category-grid,.stats-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width: 760px){
  .topbar-wrap,.nav-wrap,.section-head,.hero-actions,.cart-actions,.checkout-actions{flex-direction:column;align-items:flex-start}
  .nav-links{display:none;position:absolute;left:4%;right:4%;top:78px;background:#fff;border:1px solid var(--border);border-radius:18px;padding:14px;box-shadow:var(--shadow)}
  .nav-links.open{display:flex;flex-direction:column;align-items:flex-start}
  .menu-toggle{display:block}
  .product-grid,.category-grid,.grid-2,.stats-grid{grid-template-columns:1fr}
  .hero-content{padding:32px}
  .page-banner h1,.product-detail-info h1{font-size:34px}
}