:root {
  --store-white: #FFFFFF;
  --store-bg: #F5F5F5;
  --store-border: #E5E5E5;
  --store-black: #111111;
  --store-gray: #757575;
  --store-gray-dark: #424242;
  --store-font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --neon-cyan: #00f5ff;
  --neon-magenta: #ff00aa;
  --neon-lime: #39ff14;
  --neon-rgb: 0, 245, 255;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  font-family: var(--store-font);
  background: var(--store-white);
  color: var(--store-black);
}

/* Header Nike */
.store-header {
  background: var(--store-black);
  border-bottom: 1px solid #222;
}

.store-header .navbar-brand,
.store-header .nav-link {
  color: var(--store-white) !important;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
}

.store-header .nav-link:hover {
  opacity: 0.75;
}

.store-header .btn-store-outline {
  border: 1px solid var(--store-white);
  color: var(--store-white);
  background: transparent;
  font-size: 0.85rem;
  padding: 0.35rem 1rem;
  border-radius: 999px;
}

.store-header .btn-store-outline:hover {
  background: var(--store-white);
  color: var(--store-black);
}

.store-header .cart-badge {
  background: var(--store-white) !important;
  color: var(--store-black) !important;
  font-size: 0.65rem;
}

.store-main {
  padding-top: 2rem;
  padding-bottom: 3rem;
}

.store-footer {
  background: var(--store-bg);
  border-top: 1px solid var(--store-border);
  color: var(--store-gray);
}

/* Buttons */
.btn-nike,
.btn-primary {
  background: var(--store-black) !important;
  border-color: var(--store-black) !important;
  color: var(--store-white) !important;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 0.75rem 1.5rem;
}

.btn-nike:hover,
.btn-primary:hover:not(:disabled) {
  background: var(--store-gray-dark) !important;
  border-color: var(--store-gray-dark) !important;
  color: var(--store-white) !important;
}

.btn-nike:disabled,
.btn-primary:disabled {
  background: var(--store-border) !important;
  border-color: var(--store-border) !important;
  color: var(--store-gray) !important;
  opacity: 1;
}

.btn-nike-outline {
  background: transparent;
  border: 1px solid var(--store-black);
  color: var(--store-black);
  border-radius: 999px;
  font-weight: 600;
  padding: 0.5rem 1.25rem;
}

.btn-nike-outline:hover {
  background: var(--store-black);
  color: var(--store-white);
}

/* Catalog */
.catalog-toolbar {
  background: var(--store-bg);
  border: 1px solid var(--store-border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
}

.catalog-toolbar .form-control,
.catalog-toolbar .form-select {
  border-color: var(--store-border);
  border-radius: 8px;
}

.catalog-toolbar .form-control:focus,
.catalog-toolbar .form-select:focus {
  border-color: var(--store-black);
  box-shadow: 0 0 0 0.15rem rgba(17, 17, 17, 0.1);
}

.reseller-notice {
  background: var(--store-bg);
  border: 1px solid var(--store-border);
  border-left: 3px solid var(--store-black);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
}

.product-card-nike {
  background: var(--store-white);
  border: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.product-card-nike:hover {
  transform: translateY(-4px);
}

.product-card-nike__media {
  background: var(--store-bg);
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-card-nike__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.product-card-nike:hover .product-card-nike__media img {
  transform: scale(1.04);
}

.product-card-nike__category {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--store-gray);
  margin-bottom: 0.25rem;
}

.product-card-nike__title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  line-height: 1.3;
}

.product-card-nike__price {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.stock-pill {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--store-border);
}

.stock-pill--success { color: #15803D; border-color: #bbf7d0; background: #f0fdf4; }
.stock-pill--warning { color: #a16207; border-color: #fde68a; background: #fffbeb; }
.stock-pill--danger { color: #b91c1c; border-color: #fecaca; background: #fef2f2; }

.pagination .page-link {
  color: var(--store-black);
  border-color: var(--store-border);
}

.pagination .page-item.active .page-link {
  background: var(--store-black);
  border-color: var(--store-black);
}

/* Product detail */
.product-page {
  padding-bottom: 5rem;
}

.product-gallery__main {
  background: var(--store-bg);
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  overflow: hidden;
}

.product-gallery__main img {
  width: 100%;
  max-height: 560px;
  object-fit: contain;
}

.product-gallery__thumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.product-thumb {
  width: 72px;
  height: 72px;
  padding: 0;
  border: 2px solid transparent;
  border-radius: 4px;
  overflow: hidden;
  background: var(--store-bg);
  cursor: pointer;
  transition: border-color 0.15s;
}

.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-thumb--active,
.product-thumb:hover {
  border-color: var(--store-black);
}

.product-info__category {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--store-gray);
  margin-bottom: 0.5rem;
}

.product-info__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.product-info__price {
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.product-info__price-note {
  font-size: 0.85rem;
  color: var(--store-gray);
  margin-bottom: 1.5rem;
}

.product-picker__heading {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.75rem;
}

.product-picker__selected {
  font-size: 0.9rem;
  color: var(--store-gray);
  margin-bottom: 0.75rem;
}

.product-picker__selected strong {
  color: var(--store-black);
}

/* Color swatches */
.color-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.color-swatch {
  width: 40px;
  height: 40px;
  padding: 0;
  border: 2px solid transparent;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s, transform 0.15s;
  position: relative;
  z-index: 1;
}

.color-swatch__dot {
  pointer-events: none;
}

.color-swatch:hover {
  transform: scale(1.08);
}

.color-swatch--active {
  border-color: var(--store-black);
  box-shadow: 0 0 0 1px var(--store-white), 0 0 0 3px var(--store-black);
}

.color-swatch__dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  line-height: 1;
}

.color-swatch__dot--bordered {
  border: 1px solid var(--store-border);
}

/* Size grid */
.size-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(56px, 1fr));
  gap: 0.5rem;
  max-width: 360px;
}

@media (min-width: 992px) {
  .size-grid { max-width: 100%; }
}

.size-pill {
  min-height: 44px;
  padding: 0.5rem;
  border: 1px solid var(--store-border);
  border-radius: 4px;
  background: var(--store-white);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  position: relative;
  z-index: 1;
}

.size-pill:hover:not(:disabled) {
  border-color: var(--store-black);
}

.size-pill--active {
  background: var(--store-black);
  border-color: var(--store-black);
  color: var(--store-white);
}

.size-pill:disabled,
.size-pill--soldout {
  background: var(--store-bg);
  color: #bbb;
  text-decoration: line-through;
  cursor: not-allowed;
  border-color: var(--store-border);
}

.variant-meta {
  margin: 1.25rem 0;
  padding: 1rem 0;
  border-top: 1px solid var(--store-border);
  border-bottom: 1px solid var(--store-border);
  font-size: 0.9rem;
}

.variant-meta__row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.35rem;
}

.variant-meta__row:last-child { margin-bottom: 0; }

.variant-meta__label {
  color: var(--store-gray);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.variant-meta__value {
  font-weight: 600;
  text-align: right;
}

.variant-meta__value--success { color: #15803D; }
.variant-meta__value--warning { color: #a16207; }
.variant-meta__value--danger { color: #b91c1c; }

.qty-control {
  max-width: 120px;
}

.qty-control .form-control {
  border-color: var(--store-border);
  text-align: center;
}

.product-actions {
  margin-top: 1.5rem;
}

.product-actions .btn-nike {
  width: 100%;
  padding: 1rem 1.5rem;
  font-size: 1rem;
}

/* Sticky mobile bar */
.product-sticky-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1030;
  background: var(--store-white);
  border-top: 1px solid var(--store-border);
  padding: 0.75rem 1rem;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
}

.product-sticky-bar .btn-nike {
  width: 100%;
  padding: 0.85rem;
}

/* Cart */
.cart-item {
  display: flex;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--store-border);
}

.cart-item__image {
  width: 96px;
  height: 96px;
  flex-shrink: 0;
  background: var(--store-bg);
  border-radius: 4px;
  overflow: hidden;
}

.cart-item__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cart-summary {
  background: var(--store-bg);
  border-radius: 12px;
  padding: 1.5rem;
}

/* Auth cards */
.auth-card {
  border: 1px solid var(--store-border);
  border-radius: 12px;
  box-shadow: none;
}

.auth-card .form-control:focus {
  border-color: var(--store-black);
  box-shadow: 0 0 0 0.15rem rgba(17, 17, 17, 0.1);
}

/* Alerts subtle */
.alert-info {
  background: var(--store-bg);
  border-color: var(--store-border);
  color: var(--store-black);
}

@media (max-width: 991.98px) {
  .product-gallery__main {
    min-height: 300px;
  }

  .size-grid {
    max-width: 100%;
    grid-template-columns: repeat(4, 1fr);
  }

  .product-page {
    padding-bottom: 6rem;
  }
}

/* ── Footer premium + neon RGB ── */
.store-footer {
  position: relative;
  background: linear-gradient(180deg, #1a1a1a 0%, #111111 100%);
  border-top: 1px solid #2a2a2a;
  color: #bdbdbd;
  overflow: hidden;
}

.store-footer__glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 20% 0%, rgba(0, 245, 255, 0.08), transparent 60%),
    radial-gradient(ellipse 50% 35% at 80% 100%, rgba(255, 0, 170, 0.07), transparent 55%);
  pointer-events: none;
}

.store-footer__heading {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: #888;
  margin-bottom: 1rem;
}

.store-footer__social {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.85rem;
}

.social-neon-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #222;
  border: 1px solid #333;
  color: #fff;
  font-size: 1.25rem;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.3s, border-color 0.3s;
}

.social-neon-btn:hover {
  color: #fff;
  transform: translateY(-3px) scale(1.05);
  border-color: var(--social-brand, var(--neon-cyan));
  box-shadow:
    0 0 12px color-mix(in srgb, var(--social-brand, var(--neon-cyan)) 60%, transparent),
    0 0 24px color-mix(in srgb, var(--social-brand, var(--neon-cyan)) 30%, transparent);
}

.store-footer__logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.brand-chip {
  background: #fff;
  border-radius: 8px;
  padding: 0.35rem 0.65rem;
  border: 1px solid #333;
  transition: transform 0.2s, box-shadow 0.3s;
}

.brand-chip img {
  height: 28px;
  width: auto;
  max-width: 100px;
  display: block;
}

.brand-chip--carrier {
  text-decoration: none;
}

.brand-chip--carrier:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 14px rgba(var(--neon-rgb), 0.35);
}

.store-footer__bottom {
  padding-top: 1.5rem;
  border-top: 1px solid #2a2a2a;
  color: #666;
}

.store-footer__link {
  color: #aaa;
  text-decoration: none;
}

.store-footer__link:hover {
  color: var(--neon-cyan);
}

/* Payment checkout cards */
.payment-method-card {
  padding: 1rem;
  border: 1px solid var(--store-border);
  border-radius: 12px;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.payment-method-card:has(input:checked) {
  border-color: var(--store-black);
  box-shadow: 0 0 0 1px var(--store-black);
}

.payment-logo {
  width: 72px;
  height: auto;
  flex-shrink: 0;
  border-radius: 6px;
}

/* Neon mode — botones y acentos RGB */
.store-neon .btn-nike,
.store-neon .btn-primary {
  position: relative;
  overflow: hidden;
}

.store-neon .btn-nike::before,
.store-neon .btn-primary::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-magenta), var(--neon-lime), var(--neon-cyan));
  background-size: 300% 100%;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s;
  animation: rgb-border 4s linear infinite;
}

.store-neon .btn-nike:hover::before,
.store-neon .btn-primary:hover:not(:disabled)::before {
  opacity: 1;
}

.store-neon .btn-nike:hover,
.store-neon .btn-primary:hover:not(:disabled) {
  box-shadow: 0 0 20px rgba(var(--neon-rgb), 0.45);
}

.store-neon .product-card-nike:hover {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12), 0 0 20px rgba(var(--neon-rgb), 0.12);
}

.store-neon .color-swatch--active {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 0 1px #fff, 0 0 0 3px var(--neon-cyan), 0 0 12px rgba(var(--neon-rgb), 0.5);
}

.store-neon .size-pill--active {
  background: var(--store-black);
  box-shadow: 0 0 10px rgba(var(--neon-rgb), 0.35);
}

.store-neon .payment-method-card:has(input:checked) {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 16px rgba(var(--neon-rgb), 0.25);
}

.store-neon .store-header .cart-badge {
  animation: neon-pulse 2s ease-in-out infinite;
}

@keyframes rgb-border {
  0% { background-position: 0% 50%; }
  100% { background-position: 300% 50%; }
}

@keyframes neon-pulse {
  0%, 100% { box-shadow: 0 0 4px rgba(255, 255, 255, 0.4); }
  50% { box-shadow: 0 0 10px rgba(var(--neon-rgb), 0.8); }
}

@media (prefers-reduced-motion: reduce) {
  .store-neon .btn-nike::before,
  .store-neon .btn-primary::before {
    animation: none;
  }
  .store-neon .store-header .cart-badge {
    animation: none;
  }
}