/* ============================================
   STRATEC STORE — Global Styles
   Inspired by stratec.com.mx
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;500;600;700&family=DM+Mono:wght@400;500&display=swap');

:root {
  --stratec-dark:    #0a1628;
  --stratec-darker:  #060e1a;
  --stratec-blue:    #1565c0;
  --stratec-cyan:    #00b4d8;
  --stratec-light:   #e8f0fe;
  --stratec-white:   #ffffff;
  --stratec-gray:    #8a9ab5;
  --stratec-border:  rgba(255,255,255,0.08);
  --stratec-card:    rgba(255,255,255,0.04);
  --stratec-card-h:  rgba(255,255,255,0.07);
  --stratec-success: #00c48c;
  --stratec-warn:    #ffb300;
  --stratec-danger:  #ef5350;
  --font-main: 'Sora', system-ui, sans-serif;
  --font-mono: 'DM Mono', monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-card: 0 2px 16px rgba(0,0,0,0.3);
  --shadow-hover: 0 8px 32px rgba(0,180,216,0.15);
  --transition: 0.2s ease;
  --nav-h: 64px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-main);
  background: var(--stratec-dark);
  color: var(--stratec-white);
  line-height: 1.6;
  min-height: 100vh;
}

/* ── TYPOGRAPHY ── */
h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 700; line-height: 1.2; }
h2 { font-size: clamp(1.3rem, 3vw, 2rem); font-weight: 600; line-height: 1.3; }
h3 { font-size: 1.15rem; font-weight: 600; }
h4 { font-size: 1rem; font-weight: 500; }
p  { color: var(--stratec-gray); line-height: 1.7; }
a  { color: var(--stratec-cyan); text-decoration: none; transition: opacity var(--transition); }
a:hover { opacity: 0.8; }

/* ── NAV ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(10,22,40,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--stratec-border);
  display: flex; align-items: center;
  padding: 0 1.5rem;
}
.nav-inner {
  width: 100%; max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 1.1rem; color: var(--stratec-white);
}
.nav-logo img { height: 36px; width: auto; }
.nav-logo span { color: var(--stratec-cyan); }

.nav-links {
  display: flex; align-items: center; gap: 0.25rem;
  list-style: none;
}
.nav-links a {
  color: var(--stratec-gray); font-size: 0.9rem; font-weight: 500;
  padding: 0.4rem 0.75rem; border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover, .nav-links a.active {
  color: var(--stratec-white); background: var(--stratec-card-h);
}

.nav-actions { display: flex; align-items: center; gap: 0.75rem; }

.nav-search {
  display: flex; align-items: center;
  background: var(--stratec-card); border: 1px solid var(--stratec-border);
  border-radius: var(--radius-md); overflow: hidden;
  transition: border-color var(--transition);
}
.nav-search:focus-within { border-color: var(--stratec-cyan); }
.nav-search input {
  background: none; border: none; outline: none;
  color: var(--stratec-white); font-family: var(--font-main);
  font-size: 0.85rem; padding: 0.45rem 0.75rem; width: 200px;
}
.nav-search input::placeholder { color: var(--stratec-gray); }
.nav-search button {
  background: none; border: none; cursor: pointer;
  color: var(--stratec-gray); padding: 0.45rem 0.75rem;
  transition: color var(--transition);
}
.nav-search button:hover { color: var(--stratec-cyan); }

.btn-cart {
  position: relative;
  background: var(--stratec-card); border: 1px solid var(--stratec-border);
  border-radius: var(--radius-md); color: var(--stratec-white);
  padding: 0.45rem 1rem; cursor: pointer;
  font-family: var(--font-main); font-size: 0.85rem; font-weight: 500;
  display: flex; align-items: center; gap: 0.4rem;
  transition: border-color var(--transition), background var(--transition);
}
.btn-cart:hover { border-color: var(--stratec-cyan); background: var(--stratec-card-h); }
.btn-cart .badge {
  position: absolute; top: -6px; right: -6px;
  background: var(--stratec-cyan); color: var(--stratec-darker);
  border-radius: 50%; width: 18px; height: 18px;
  font-size: 0.65rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}

.hamburger {
  display: none; background: none; border: none;
  color: var(--stratec-white); cursor: pointer; font-size: 1.3rem; padding: 0.25rem;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  font-family: var(--font-main); font-weight: 600; font-size: 0.9rem;
  border-radius: var(--radius-md); cursor: pointer; border: none;
  transition: all var(--transition); text-decoration: none; white-space: nowrap;
}
.btn-primary {
  background: var(--stratec-cyan); color: var(--stratec-darker);
  padding: 0.65rem 1.5rem;
}
.btn-primary:hover { background: #00d0f0; transform: translateY(-1px); box-shadow: 0 4px 20px rgba(0,180,216,0.3); }
.btn-secondary {
  background: transparent; color: var(--stratec-white);
  border: 1px solid var(--stratec-border); padding: 0.65rem 1.5rem;
}
.btn-secondary:hover { border-color: var(--stratec-cyan); color: var(--stratec-cyan); }
.btn-whatsapp {
  background: #25d366; color: white; padding: 0.65rem 1.5rem;
}
.btn-whatsapp:hover { background: #20bc5a; transform: translateY(-1px); }
.btn-danger { background: var(--stratec-danger); color: white; padding: 0.5rem 1rem; font-size: 0.85rem; }
.btn-sm { padding: 0.4rem 0.9rem; font-size: 0.82rem; }
.btn-icon { padding: 0.5rem; border-radius: var(--radius-sm); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; pointer-events: none; }

/* ── LAYOUT ── */
.container { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }
.page-top { padding-top: calc(var(--nav-h) + 2rem); }
.section { padding: 4rem 0; }

/* ── CARDS ── */
.card {
  background: var(--stratec-card);
  border: 1px solid var(--stratec-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.card:hover { border-color: rgba(0,180,216,0.3); box-shadow: var(--shadow-hover); }

/* ── PRODUCT CARD ── */
.product-card {
  background: var(--stratec-card);
  border: 1px solid var(--stratec-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  display: flex; flex-direction: column;
}
.product-card:hover {
  border-color: rgba(0,180,216,0.35);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.product-card-img {
  aspect-ratio: 4/3; overflow: hidden;
  background: var(--stratec-darker);
  display: flex; align-items: center; justify-content: center;
}
.product-card-img img {
  width: 100%; height: 100%; object-fit: contain; padding: 1rem;
  transition: transform 0.3s ease;
}
.product-card:hover .product-card-img img { transform: scale(1.04); }
.product-card-body { padding: 1rem; flex: 1; display: flex; flex-direction: column; gap: 0.5rem; }
.product-card-brand {
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em;
  color: var(--stratec-cyan); text-transform: uppercase;
}
.product-card-name {
  font-size: 0.9rem; font-weight: 600; color: var(--stratec-white);
  line-height: 1.35; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.product-card-sku { font-family: var(--font-mono); font-size: 0.72rem; color: var(--stratec-gray); }
.product-card-price { font-size: 1.15rem; font-weight: 700; color: var(--stratec-white); }
.product-card-stock {
  font-size: 0.72rem; font-weight: 600; padding: 0.2rem 0.5rem;
  border-radius: 4px; display: inline-flex; align-items: center; gap: 0.25rem;
}
.in-stock  { background: rgba(0,196,140,0.15); color: var(--stratec-success); }
.no-stock  { background: rgba(239,83,80,0.15); color: var(--stratec-danger); }
.product-card-footer { padding: 0.75rem 1rem; border-top: 1px solid var(--stratec-border); display: flex; gap: 0.5rem; }
.product-card-footer .btn { flex: 1; }

/* ── GRID ── */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1.25rem;
}

/* ── FILTERS SIDEBAR ── */
.catalog-layout { display: flex; gap: 1.5rem; align-items: flex-start; }
.filters-sidebar {
  width: 240px; flex-shrink: 0;
  background: var(--stratec-card); border: 1px solid var(--stratec-border);
  border-radius: var(--radius-lg); padding: 1.25rem;
  position: sticky; top: calc(var(--nav-h) + 1rem);
}
.filters-sidebar h3 { margin-bottom: 1rem; font-size: 0.95rem; }
.filter-group { margin-bottom: 1.25rem; }
.filter-group label { display: block; font-size: 0.8rem; font-weight: 600; color: var(--stratec-gray); margin-bottom: 0.5rem; letter-spacing: 0.06em; text-transform: uppercase; }
.filter-group select, .filter-group input[type="text"] {
  width: 100%; background: var(--stratec-darker); border: 1px solid var(--stratec-border);
  border-radius: var(--radius-sm); color: var(--stratec-white);
  font-family: var(--font-main); font-size: 0.85rem; padding: 0.5rem 0.75rem;
  outline: none; transition: border-color var(--transition);
}
.filter-group select:focus, .filter-group input[type="text"]:focus { border-color: var(--stratec-cyan); }
.filter-group select option { background: var(--stratec-darker); }
.filter-check { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.4rem; cursor: pointer; font-size: 0.85rem; }
.filter-check input { accent-color: var(--stratec-cyan); }
.catalog-main { flex: 1; min-width: 0; }

/* ── SEARCH BAR ── */
.search-hero {
  display: flex; gap: 0.5rem;
  background: var(--stratec-card); border: 1px solid var(--stratec-border);
  border-radius: var(--radius-lg); padding: 0.5rem; margin-bottom: 1.5rem;
}
.search-hero input {
  flex: 1; background: none; border: none; outline: none;
  color: var(--stratec-white); font-family: var(--font-main); font-size: 1rem;
  padding: 0.5rem 0.75rem;
}
.search-hero input::placeholder { color: var(--stratec-gray); }
.search-hero .btn { flex-shrink: 0; }

/* ── FORMS ── */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 500; margin-bottom: 0.4rem; color: var(--stratec-gray); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; background: var(--stratec-card); border: 1px solid var(--stratec-border);
  border-radius: var(--radius-md); color: var(--stratec-white);
  font-family: var(--font-main); font-size: 0.9rem; padding: 0.65rem 1rem;
  outline: none; transition: border-color var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--stratec-cyan); }
.form-group select option { background: var(--stratec-dark); }
.form-group textarea { resize: vertical; min-height: 80px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

/* ── TABLES ── */
.table-wrap { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--stratec-border); }
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
thead { background: var(--stratec-card-h); }
th { padding: 0.75rem 1rem; text-align: left; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.06em; color: var(--stratec-gray); text-transform: uppercase; }
td { padding: 0.75rem 1rem; border-top: 1px solid var(--stratec-border); color: var(--stratec-white); vertical-align: middle; }
tr:hover td { background: var(--stratec-card); }

/* ── BADGES ── */
.badge {
  display: inline-flex; align-items: center; gap: 0.25rem;
  font-size: 0.72rem; font-weight: 600; padding: 0.2rem 0.6rem; border-radius: 20px;
}
.badge-cyan    { background: rgba(0,180,216,0.15); color: var(--stratec-cyan); }
.badge-success { background: rgba(0,196,140,0.15); color: var(--stratec-success); }
.badge-warn    { background: rgba(255,179,0,0.15);  color: var(--stratec-warn); }
.badge-danger  { background: rgba(239,83,80,0.15);  color: var(--stratec-danger); }
.badge-gray    { background: rgba(138,154,181,0.15); color: var(--stratec-gray); }

/* ── PAGINATION ── */
.pagination { display: flex; align-items: center; gap: 0.5rem; justify-content: center; margin-top: 2rem; }
.pagination button {
  background: var(--stratec-card); border: 1px solid var(--stratec-border);
  border-radius: var(--radius-sm); color: var(--stratec-white);
  font-family: var(--font-main); padding: 0.4rem 0.85rem; font-size: 0.85rem; cursor: pointer;
  transition: all var(--transition);
}
.pagination button:hover, .pagination button.active { border-color: var(--stratec-cyan); color: var(--stratec-cyan); }
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── ALERTS / TOASTS ── */
.alert { padding: 0.75rem 1rem; border-radius: var(--radius-md); font-size: 0.9rem; margin-bottom: 1rem; }
.alert-info    { background: rgba(21,101,192,0.15); border: 1px solid rgba(21,101,192,0.3); color: #90caf9; }
.alert-success { background: rgba(0,196,140,0.12); border: 1px solid rgba(0,196,140,0.3); color: var(--stratec-success); }
.alert-warn    { background: rgba(255,179,0,0.12);  border: 1px solid rgba(255,179,0,0.3);  color: var(--stratec-warn); }
.alert-danger  { background: rgba(239,83,80,0.12);  border: 1px solid rgba(239,83,80,0.3);  color: var(--stratec-danger); }

#toast-container {
  position: fixed; bottom: 2rem; right: 1.5rem; z-index: 999;
  display: flex; flex-direction: column; gap: 0.5rem;
}
.toast {
  background: var(--stratec-darker); border: 1px solid var(--stratec-border);
  border-radius: var(--radius-md); padding: 0.75rem 1.25rem;
  font-size: 0.88rem; min-width: 240px; box-shadow: var(--shadow-card);
  animation: slideIn 0.2s ease;
}
.toast.success { border-color: var(--stratec-success); color: var(--stratec-success); }
.toast.error   { border-color: var(--stratec-danger); color: var(--stratec-danger); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ── HERO SECTION ── */
.hero {
  min-height: 480px; display: flex; align-items: center; position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--stratec-darker) 0%, #0d1f3c 60%, #0a2050 100%);
  border-bottom: 1px solid var(--stratec-border);
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 60% at 80% 50%, rgba(0,180,216,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; max-width: 600px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--stratec-cyan); background: rgba(0,180,216,0.1); border: 1px solid rgba(0,180,216,0.2);
  border-radius: 20px; padding: 0.3rem 0.9rem; margin-bottom: 1.25rem;
}
.hero h1 { margin-bottom: 1rem; }
.hero p { font-size: 1.05rem; margin-bottom: 2rem; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ── CATEGORIES STRIP ── */
.categories-strip {
  display: flex; gap: 0.75rem; overflow-x: auto; padding-bottom: 0.5rem;
  scrollbar-width: none; -ms-overflow-style: none;
}
.categories-strip::-webkit-scrollbar { display: none; }
.cat-chip {
  flex-shrink: 0; display: flex; align-items: center; gap: 0.4rem;
  background: var(--stratec-card); border: 1px solid var(--stratec-border);
  border-radius: var(--radius-xl); padding: 0.5rem 1.1rem;
  font-size: 0.85rem; font-weight: 500; color: var(--stratec-gray);
  cursor: pointer; transition: all var(--transition); text-decoration: none;
}
.cat-chip:hover, .cat-chip.active { border-color: var(--stratec-cyan); color: var(--stratec-cyan); background: rgba(0,180,216,0.08); }
.cat-chip .cat-icon { font-size: 1rem; }

/* ── FLOATING WHATSAPP ── */
.whatsapp-float {
  position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 90;
  width: 56px; height: 56px; border-radius: 50%;
  background: #25d366;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  transition: transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
}
.whatsapp-float svg { width: 32px; height: 32px; }
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 6px 28px rgba(37,211,102,0.55); }

/* ── PRODUCT DETAIL ── */
.product-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.product-gallery { position: sticky; top: calc(var(--nav-h) + 1rem); }
.gallery-main {
  aspect-ratio: 4/3; background: var(--stratec-card); border: 1px solid var(--stratec-border);
  border-radius: var(--radius-lg); overflow: hidden;
  display: flex; align-items: center; justify-content: center; margin-bottom: 0.75rem;
}
.gallery-main img { max-width: 100%; max-height: 100%; object-fit: contain; padding: 2rem; }
.gallery-thumbs { display: flex; gap: 0.5rem; }
.gallery-thumb {
  width: 64px; height: 64px; border-radius: var(--radius-sm);
  border: 1px solid var(--stratec-border); overflow: hidden; cursor: pointer;
  background: var(--stratec-card); transition: border-color var(--transition);
}
.gallery-thumb.active, .gallery-thumb:hover { border-color: var(--stratec-cyan); }
.gallery-thumb img { width: 100%; height: 100%; object-fit: contain; padding: 0.3rem; }

.product-info h1 { margin-bottom: 0.5rem; }
.product-meta { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0; }
.product-price-block { margin: 1.5rem 0; }
.product-price { font-size: 2.2rem; font-weight: 700; color: var(--stratec-white); }
.product-price-iva { font-size: 0.85rem; color: var(--stratec-gray); margin-top: 0.2rem; }
.product-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.product-actions .btn { flex: 1; min-width: 160px; }
.qty-selector {
  display: flex; align-items: center; border: 1px solid var(--stratec-border);
  border-radius: var(--radius-md); overflow: hidden;
}
.qty-selector button {
  background: var(--stratec-card); border: none; color: var(--stratec-white);
  width: 36px; height: 36px; cursor: pointer; font-size: 1.1rem;
  transition: background var(--transition);
}
.qty-selector button:hover { background: var(--stratec-card-h); }
.qty-selector input {
  width: 48px; text-align: center; background: none; border: none;
  border-left: 1px solid var(--stratec-border); border-right: 1px solid var(--stratec-border);
  color: var(--stratec-white); font-family: var(--font-main); font-size: 0.95rem;
  padding: 0.4rem 0; outline: none;
}

.specs-table { width: 100%; font-size: 0.88rem; }
.specs-table tr:nth-child(odd) td:first-child { background: rgba(255,255,255,0.025); }
.specs-table td { padding: 0.55rem 0.75rem; border-bottom: 1px solid var(--stratec-border); }
.specs-table td:first-child { color: var(--stratec-gray); width: 40%; }

/* ── TABS ── */
.tabs { display: flex; gap: 0; border-bottom: 1px solid var(--stratec-border); margin-bottom: 1.5rem; }
.tab-btn {
  background: none; border: none; border-bottom: 2px solid transparent;
  color: var(--stratec-gray); font-family: var(--font-main); font-size: 0.9rem; font-weight: 500;
  padding: 0.75rem 1.25rem; cursor: pointer; margin-bottom: -1px; transition: all var(--transition);
}
.tab-btn.active, .tab-btn:hover { color: var(--stratec-cyan); border-bottom-color: var(--stratec-cyan); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── CART ── */
.cart-layout { display: grid; grid-template-columns: 1fr 360px; gap: 2rem; align-items: start; }
.cart-item {
  display: flex; gap: 1rem; padding: 1rem;
  border-bottom: 1px solid var(--stratec-border);
  align-items: center;
}
.cart-item-img {
  width: 80px; height: 80px; flex-shrink: 0;
  background: var(--stratec-card); border-radius: var(--radius-sm); overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.cart-item-img img { max-width: 100%; max-height: 100%; object-fit: contain; padding: 0.4rem; }
.cart-item-info { flex: 1; min-width: 0; }
.cart-item-name { font-weight: 600; font-size: 0.9rem; margin-bottom: 0.25rem; color: var(--stratec-white); }
.cart-item-sku  { font-family: var(--font-mono); font-size: 0.72rem; color: var(--stratec-gray); }
.cart-item-price { font-weight: 700; color: var(--stratec-white); }
.cart-item-controls { display: flex; align-items: center; gap: 0.5rem; margin-top: 0.5rem; }
.cart-summary {
  background: var(--stratec-card); border: 1px solid var(--stratec-border);
  border-radius: var(--radius-lg); padding: 1.5rem;
  position: sticky; top: calc(var(--nav-h) + 1rem);
}
.summary-row { display: flex; justify-content: space-between; padding: 0.5rem 0; font-size: 0.9rem; }
.summary-row.total { border-top: 1px solid var(--stratec-border); margin-top: 0.5rem; padding-top: 1rem; font-size: 1.1rem; font-weight: 700; color: var(--stratec-white); }
.summary-label { color: var(--stratec-gray); }

/* ── CHECKOUT ── */
.checkout-layout { display: grid; grid-template-columns: 1fr 360px; gap: 2rem; align-items: start; }

/* ── SECTION HEADERS ── */
.section-header { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 1.5rem; }
.section-header h2 { }
.section-header a { font-size: 0.85rem; }

/* ── EMPTY STATES ── */
.empty-state {
  text-align: center; padding: 4rem 2rem;
}
.empty-state .empty-icon { font-size: 3.5rem; margin-bottom: 1rem; opacity: 0.3; }
.empty-state h3 { color: var(--stratec-gray); font-weight: 500; margin-bottom: 0.75rem; }

/* ── LOADING ── */
.skeleton {
  background: linear-gradient(90deg, var(--stratec-card) 25%, var(--stratec-card-h) 50%, var(--stratec-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer { from { background-position: -200% 0; } to { background-position: 200% 0; } }

.spinner {
  width: 24px; height: 24px; border: 2px solid var(--stratec-border);
  border-top-color: var(--stratec-cyan); border-radius: 50%;
  animation: spin 0.7s linear infinite; display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── FOOTER ── */
.footer {
  background: var(--stratec-darker); border-top: 1px solid var(--stratec-border);
  padding: 3rem 0 1.5rem; margin-top: 4rem;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
.footer-brand p { font-size: 0.88rem; margin-top: 0.75rem; max-width: 260px; }
.footer h4 { font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--stratec-gray); margin-bottom: 0.75rem; }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 0.4rem; }
.footer ul a { font-size: 0.88rem; color: var(--stratec-gray); transition: color var(--transition); }
.footer ul a:hover { color: var(--stratec-white); }
.footer-bottom { display: flex; justify-content: space-between; padding-top: 1.5rem; border-top: 1px solid var(--stratec-border); font-size: 0.8rem; color: var(--stratec-gray); }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .product-detail-grid { grid-template-columns: 1fr; }
  .catalog-layout { flex-direction: column; }
  .filters-sidebar { width: 100%; position: static; }
  .cart-layout, .checkout-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links, .nav-search { display: none; }
  .hamburger { display: flex; }
  .mobile-menu {
    position: fixed; inset: 0; top: var(--nav-h);
    background: var(--stratec-darker); z-index: 99;
    padding: 1.5rem; display: flex; flex-direction: column; gap: 0.5rem;
  }
  .mobile-menu a {
    display: block; color: var(--stratec-white); font-size: 1.1rem;
    padding: 0.75rem 0; border-bottom: 1px solid var(--stratec-border);
  }
  .products-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 0.875rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero { min-height: 360px; }
  h1 { font-size: 1.75rem; }
}