/* ==========================================================================
   Catálogo de Calzado - Estilo Nike.com
   Diseño minimalista, tipografía de alto impacto, contraste nítido y estilo deportivo.
   Totalmente responsivo para Móvil (<640px), Tablet (641px-1024px), Desktop (>1024px) y Ultra-Wide.
   ========================================================================== */

/* ==========================================================================
   Variables de Diseño y Tokens Estilo Nike
   ========================================================================== */
:root {
  /* Paleta de Colores Nike (Tema Claro por Defecto) */
  --nike-black: #111111;
  --nike-white: #ffffff;
  --nike-gray-light: #f6f6f6;
  --nike-gray-card: #f5f5f5;
  --nike-gray-border: #e5e5e5;
  --nike-gray-border-dark: #cccccc;
  --nike-gray-text: #707072;
  --nike-gray-muted: #8d8d8d;
  --nike-gray-tag: #eeeeee;

  --bg-body: #ffffff;
  --bg-surface: #ffffff;
  --bg-elevated: #f6f6f6;
  --bg-card: #f6f6f6;
  --bg-chip: #ffffff;
  --bg-chip-hover: #f0f0f0;
  --bg-chip-active: #111111;
  --text-chip-active: #ffffff;

  --text-main: #111111;
  --text-secondary: #707072;
  --text-muted: #8d8d8d;
  --text-inverse: #ffffff;

  --accent-primary: #111111;
  --accent-green: #25d366;
  --accent-green-hover: #1eb956;
  --accent-orange: #fa5400;

  --border-subtle: #e5e5e5;
  --border-strong: #111111;
  --border-focus: #111111;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);

  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Dimensiones del Layout */
  --navbar-height: 64px;
  --container-padding: 20px;

  /* Tipografía Nike */
  --font-family: "Helvetica Neue", Helvetica, Arial, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display: "Helvetica Neue", Helvetica, Arial, -apple-system, BlinkMacSystemFont, sans-serif;

  --transition-fast: 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Tema Oscuro Estilo Nike Dark Mode */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-body: #111111;
    --bg-surface: #191919;
    --bg-elevated: #222222;
    --bg-card: #1e1e1e;
    --bg-chip: #1e1e1e;
    --bg-chip-hover: #2a2a2a;
    --bg-chip-active: #ffffff;
    --text-chip-active: #111111;

    --text-main: #f5f5f5;
    --text-secondary: #a1a1a1;
    --text-muted: #757575;
    --text-inverse: #111111;

    --nike-gray-border: #2a2a2a;
    --border-subtle: #2a2a2a;
    --border-strong: #ffffff;
    --border-focus: #ffffff;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.7);
  }
}

/* ==========================================================================
   Reset & Estilos Base
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button, input, a {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

a {
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hidden {
  display: none !important;
}

/* ==========================================================================
   Contenedor Responsivo
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding-left: max(16px, env(safe-area-inset-left));
  padding-right: max(16px, env(safe-area-inset-right));
}

@media (min-width: 640px) {
  .container {
    padding-left: max(24px, env(safe-area-inset-left));
    padding-right: max(24px, env(safe-area-inset-right));
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: max(36px, env(safe-area-inset-left));
    padding-right: max(36px, env(safe-area-inset-right));
  }
}

@media (min-width: 1400px) {
  .container {
    padding-left: max(48px, env(safe-area-inset-left));
    padding-right: max(48px, env(safe-area-inset-right));
  }
}

@media (min-width: 1800px) {
  .container {
    max-width: 1680px;
  }
}

/* ==========================================================================
   Barra Superior de Avisos (Nike Top Bar)
   ========================================================================== */
.nike-top-bar {
  background-color: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text-main);
  padding: 6px 0;
}

.top-bar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: nowrap;
}

.top-bar-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.top-bar-item .icon {
  width: 14px;
  height: 14px;
  stroke-width: 2.2;
  flex-shrink: 0;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-green);
  border-radius: var(--radius-full);
  display: inline-block;
  box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
  animation: pulseAnimation 2s infinite;
  flex-shrink: 0;
}

@keyframes pulseAnimation {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
  }
  70% {
    box-shadow: 0 0 0 6px rgba(37, 211, 102, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
  }
}

@media (max-width: 640px) {
  .nike-top-bar {
    font-size: 0.7rem;
    padding: 5px 0;
  }
  .top-bar-shipping {
    display: none;
  }
  .top-bar-container {
    justify-content: center;
    gap: 10px;
  }
}

@media (max-width: 380px) {
  .top-bar-item span {
    max-width: 140px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}

/* ==========================================================================
   Navegación Principal Estilo Nike (Nike Navbar)
   ========================================================================== */
.nike-navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: all var(--transition-fast);
}

.navbar-container {
  height: var(--navbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

@media (max-width: 640px) {
  :root {
    --navbar-height: 56px;
  }
  .navbar-container {
    gap: 8px;
  }
}

/* Logotipo */
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-main);
  text-decoration: none;
  transition: opacity var(--transition-fast);
  flex-shrink: 0;
}

.brand-logo:hover {
  opacity: 0.75;
}

.brand-swoosh-icon {
  width: 40px;
  height: 22px;
  fill: currentColor;
  flex-shrink: 0;
}

@media (min-width: 768px) {
  .brand-swoosh-icon {
    width: 44px;
    height: 24px;
  }
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--text-main);
}

@media (max-width: 440px) {
  .brand-name {
    font-size: 0.95rem;
  }
}

@media (max-width: 360px) {
  .brand-name {
    display: none;
  }
}

/* Enlaces de Categoría en Barra de Navegación */
.nav-links {
  display: none;
  align-items: center;
  gap: 20px;
}

@media (min-width: 960px) {
  .nav-links {
    display: flex;
  }
}

.nav-link-btn {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  padding: 6px 0;
  position: relative;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.nav-link-btn::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--text-main);
  transition: width var(--transition-fast);
}

.nav-link-btn:hover::after,
.nav-link-btn.active::after {
  width: 100%;
}

/* Búsqueda y Acciones del Navbar */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  max-width: 380px;
  min-width: 0;
  justify-content: flex-end;
}

@media (min-width: 768px) {
  .nav-actions {
    gap: 12px;
  }
}

.nav-search-wrapper {
  position: relative;
  width: 100%;
  max-width: 280px;
  min-width: 0;
  flex: 1;
}

.nav-search-wrapper .search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--text-secondary);
  pointer-events: none;
  flex-shrink: 0;
}

#search-input {
  width: 100%;
  min-width: 0;
  height: 38px;
  padding: 6px 32px 6px 36px;
  background-color: var(--bg-elevated);
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  color: var(--text-main);
  font-size: 16px; /* Evita auto-zoom en iOS Safari */
  font-weight: 500;
  outline: none;
  transition: all var(--transition-fast);
}

@media (min-width: 768px) {
  #search-input {
    height: 40px;
    font-size: 0.875rem;
    padding: 8px 36px 8px 38px;
  }
}

#search-input::placeholder {
  color: var(--text-muted);
  font-size: 0.8125rem;
}

@media (min-width: 768px) {
  #search-input::placeholder {
    font-size: 0.875rem;
  }
}

#search-input:focus {
  background-color: var(--bg-surface);
  border-color: var(--border-focus);
  box-shadow: 0 0 0 1px var(--border-focus);
}

.search-clear-btn {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
  padding: 0;
}

.search-clear-btn:hover {
  color: var(--text-main);
}

.nav-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 38px;
  padding: 0 14px;
  background-color: var(--nike-black);
  color: var(--nike-white);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

@media (min-width: 768px) {
  .nav-cta-btn {
    height: 40px;
    padding: 0 16px;
  }
}

@media (prefers-color-scheme: dark) {
  .nav-cta-btn {
    background-color: var(--nike-white);
    color: var(--nike-black);
  }
}

.nav-cta-btn:hover {
  opacity: 0.85;
  transform: scale(1.02);
}

.nav-cta-btn .icon-whatsapp {
  width: 18px;
  height: 18px;
  fill: currentColor;
  flex-shrink: 0;
}

@media (max-width: 540px) {
  .nav-cta-text {
    display: none;
  }
  .nav-cta-btn {
    width: 38px;
    height: 38px;
    padding: 0;
  }
}

/* ==========================================================================
   Sección Hero Editorial Estilo Nike (Nike Hero)
   ========================================================================== */
.nike-hero-section {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 28px 0 24px 0;
  text-align: center;
  position: relative;
}

@media (min-width: 640px) {
  .nike-hero-section {
    padding: 38px 0 30px 0;
  }
}

@media (min-width: 1024px) {
  .nike-hero-section {
    padding: 48px 0 38px 0;
  }
}

.hero-container {
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-main);
  margin-bottom: 12px;
  max-width: 100%;
  flex-wrap: wrap;
}

@media (min-width: 640px) {
  .hero-badge {
    padding: 6px 16px;
    font-size: 0.75rem;
    margin-bottom: 16px;
  }
}

.hero-tag {
  color: var(--accent-orange);
}

.hero-divider {
  color: var(--text-muted);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 6.5vw, 4.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  color: var(--text-main);
  margin-bottom: 10px;
  word-break: break-word;
  overflow-wrap: break-word;
}

.hero-subtitle {
  font-size: clamp(0.875rem, 2vw, 1.125rem);
  color: var(--text-secondary);
  line-height: 1.55;
  max-width: 680px;
  margin: 0 auto 18px auto;
  padding: 0 4px;
}

@media (min-width: 640px) {
  .hero-subtitle {
    margin-bottom: 24px;
  }
}

.hero-features {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

@media (min-width: 640px) {
  .hero-features {
    gap: 12px;
  }
}

.feature-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--bg-elevated);
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

@media (min-width: 640px) {
  .feature-pill {
    padding: 6px 14px;
    font-size: 0.8125rem;
  }
}

.feature-pill:hover {
  border-color: var(--border-subtle);
  color: var(--text-main);
}

.feature-icon {
  font-size: 0.875rem;
  line-height: 1;
}

/* ==========================================================================
   Sección de Filtros y Controles de Marcas (Sticky Filter Bar)
   ========================================================================== */
.controls-section {
  position: sticky;
  top: var(--navbar-height);
  z-index: 40;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 10px 0 8px 0;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

@media (min-width: 768px) {
  .controls-section {
    padding: 14px 0 12px 0;
  }
}

.controls-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

@media (min-width: 768px) {
  .controls-container {
    gap: 12px;
  }
}

.controls-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.controls-title-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.controls-title {
  font-family: var(--font-display);
  font-size: clamp(1rem, 3vw, 1.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
  text-transform: uppercase;
}

.results-badge {
  display: inline-flex;
  align-items: center;
  font-size: clamp(0.75rem, 2vw, 0.875rem);
  font-weight: 600;
  color: var(--text-secondary);
}

.reset-filters-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  transition: all var(--transition-fast);
  min-height: 32px;
}

@media (min-width: 768px) {
  .reset-filters-btn {
    padding: 6px 14px;
    font-size: 0.8125rem;
  }
}

.reset-filters-btn:hover {
  background-color: var(--nike-black);
  color: var(--nike-white);
  border-color: var(--nike-black);
}

@media (prefers-color-scheme: dark) {
  .reset-filters-btn:hover {
    background-color: var(--nike-white);
    color: var(--nike-black);
    border-color: var(--nike-white);
  }
}

/* Fila de Chips de Marcas con Desplazamiento Horizontal */
.brands-filter-wrapper {
  position: relative;
  width: 100%;
}

.brands-filter-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 24px;
  background: linear-gradient(to right, transparent, var(--bg-surface));
  pointer-events: none;
  opacity: 1;
}

.brands-filter-scroll {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 24px 6px 2px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-subtle) transparent;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  scroll-padding: 0 16px;
}

.brands-filter-scroll::-webkit-scrollbar {
  height: 4px;
}

.brands-filter-scroll::-webkit-scrollbar-thumb {
  background-color: var(--border-subtle);
  border-radius: 4px;
}

/* Chips de Marca */
.brand-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background-color: var(--bg-chip);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-main);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  white-space: nowrap;
  transition: all var(--transition-fast);
  user-select: none;
  flex-shrink: 0;
  min-height: 36px;
  scroll-snap-align: start;
}

@media (min-width: 768px) {
  .brand-chip {
    padding: 8px 18px;
    font-size: 0.8125rem;
    min-height: 40px;
    gap: 8px;
  }
}

@media (hover: hover) {
  .brand-chip:hover {
    border-color: var(--border-strong);
    transform: translateY(-1px);
  }
}

@media (hover: none) {
  .brand-chip:active {
    transform: scale(0.96);
  }
}

.brand-chip.active {
  background-color: var(--bg-chip-active);
  color: var(--text-chip-active);
  border-color: var(--bg-chip-active);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.brand-chip-count {
  font-size: 0.6875rem;
  font-weight: 600;
  opacity: 0.75;
}

@media (min-width: 768px) {
  .brand-chip-count {
    font-size: 0.75rem;
  }
}

.brand-chip.active .brand-chip-count {
  opacity: 0.9;
}

/* ==========================================================================
   Contenido Principal y Cuadrícula de Productos Estilo Nike
   ========================================================================== */
.main-content {
  flex: 1;
  padding: 20px 0 48px 0;
}

@media (min-width: 768px) {
  .main-content {
    padding: 32px 0 64px 0;
  }
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

@media (min-width: 440px) {
  .product-grid {
    gap: 14px;
  }
}

@media (min-width: 640px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }
}

@media (min-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
  }
}

@media (min-width: 1400px) {
  .product-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
  }
}

@media (min-width: 1800px) {
  .product-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 28px;
  }
}

/* Tarjeta de Producto Estilo Nike Store */
.product-card {
  display: flex;
  flex-direction: column;
  text-align: left;
  background-color: transparent;
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: transform var(--transition-normal);
  outline: none;
  position: relative;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.product-card:focus-visible {
  box-shadow: 0 0 0 3px var(--border-focus);
}

@media (hover: hover) {
  .product-card:hover {
    transform: translateY(-4px);
  }
  .product-card:hover .product-image {
    transform: scale(1.05);
  }
}

@media (hover: none) {
  .product-card:active {
    opacity: 0.85;
    transform: scale(0.98);
  }
}

/* Contenedor de Imagen de la Tarjeta */
.product-image-container {
  width: 100%;
  aspect-ratio: 1 / 1;
  background-color: var(--bg-card);
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px;
  transition: background-color var(--transition-fast);
}

@media (min-width: 440px) {
  .product-image-container {
    padding: 8px;
  }
}

@media (min-width: 768px) {
  .product-image-container {
    padding: 14px;
    border-radius: var(--radius-md);
  }
}

.product-card:hover .product-image-container {
  background-color: var(--bg-elevated);
}

.product-card-badge {
  position: absolute;
  top: 6px;
  left: 6px;
  background-color: var(--nike-white);
  color: var(--nike-black);
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  font-size: 0.625rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  z-index: 2;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
  line-height: 1.3;
}

@media (min-width: 768px) {
  .product-card-badge {
    top: 10px;
    left: 10px;
    padding: 3px 8px;
    font-size: 0.6875rem;
  }
}

@media (prefers-color-scheme: dark) {
  .product-card-badge {
    background-color: var(--nike-black);
    color: var(--nike-white);
    border: 1px solid var(--border-subtle);
  }
}

/* Imagen del Producto: Sin recortar para mantener legibles las tallas */
.product-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform var(--transition-smooth);
}

/* Cuerpo / Información de la Tarjeta */
.product-card-body {
  padding: 8px 2px 2px 2px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

@media (min-width: 768px) {
  .product-card-body {
    padding: 12px 2px 4px 2px;
  }
}

.product-brand {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-secondary);
  line-height: 1.2;
}

@media (min-width: 768px) {
  .product-brand {
    font-size: 0.75rem;
  }
}

.product-title {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-main);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
}

@media (min-width: 768px) {
  .product-title {
    font-size: 0.9375rem;
  }
}

.product-card-hint {
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-top: 1px;
}

@media (min-width: 768px) {
  .product-card-hint {
    font-size: 0.75rem;
    margin-top: 2px;
  }
}

/* Centinela para Scroll Infinito */
.scroll-sentinel {
  width: 100%;
  height: 60px;
  pointer-events: none;
}

/* ==========================================================================
   Estado Vacío (Sin Resultados)
   ========================================================================== */
.empty-state {
  text-align: center;
  padding: 48px 16px;
  max-width: 500px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .empty-state {
    padding: 64px 20px;
  }
}

.empty-state-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 16px auto;
  color: var(--text-muted);
}

@media (min-width: 768px) {
  .empty-state-icon {
    width: 72px;
    height: 72px;
    margin-bottom: 20px;
  }
}

.empty-state-icon svg {
  width: 100%;
  height: 100%;
}

.empty-state-title {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 4vw, 1.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--text-main);
  margin-bottom: 8px;
}

.empty-state-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.5;
}

@media (min-width: 768px) {
  .empty-state-text {
    font-size: 0.9375rem;
    margin-bottom: 24px;
  }
}

.btn-nike-black {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  background-color: var(--nike-black);
  color: var(--nike-white);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: all var(--transition-fast);
  min-height: 44px;
}

@media (min-width: 768px) {
  .btn-nike-black {
    padding: 14px 28px;
    font-size: 0.875rem;
  }
}

@media (prefers-color-scheme: dark) {
  .btn-nike-black {
    background-color: var(--nike-white);
    color: var(--nike-black);
  }
}

.btn-nike-black:hover {
  opacity: 0.85;
  transform: scale(1.02);
}

/* ==========================================================================
   Modal Lightbox Estilo Galería Nike Showcase
   ========================================================================== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  animation: fadeIn 0.2s ease-out;
  overscroll-behavior: contain;
}

@media (min-width: 641px) {
  .lightbox {
    padding: 24px;
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.lightbox-dialog {
  position: relative;
  z-index: 10;
  width: 100%;
  height: 100%;
  height: 100dvh;
  max-height: 100dvh;
  background-color: var(--bg-surface);
  border-radius: 0;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  animation: slideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (min-width: 641px) {
  .lightbox-dialog {
    max-width: 980px;
    height: auto;
    max-height: 92vh;
    border-radius: var(--radius-lg);
  }
}

@media (min-width: 1400px) {
  .lightbox-dialog {
    max-width: 1100px;
    max-height: 90vh;
  }
}

@keyframes slideUp {
  from {
    transform: translateY(20px) scale(0.98);
    opacity: 0;
  }
  to {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

/* Botones de Control del Modal (Estilo Nike Circulares) */
.lightbox-btn {
  position: absolute;
  z-index: 25;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.92);
  color: #111111;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
  transition: all var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
}

@media (min-width: 641px) {
  .lightbox-btn {
    width: 44px;
    height: 44px;
  }
}

@media (prefers-color-scheme: dark) {
  .lightbox-btn {
    background-color: rgba(30, 30, 30, 0.92);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.15);
  }
}

.lightbox-btn:hover {
  transform: scale(1.08);
}

.lightbox-btn:active {
  transform: scale(0.96);
}

.lightbox-btn svg {
  width: 20px;
  height: 20px;
}

@media (min-width: 641px) {
  .lightbox-btn svg {
    width: 22px;
    height: 22px;
  }
}

.lightbox-btn-close {
  top: max(12px, env(safe-area-inset-top));
  right: max(12px, env(safe-area-inset-right));
}

@media (min-width: 641px) {
  .lightbox-btn-close {
    top: 16px;
    right: 16px;
  }
}

.lightbox-btn-prev {
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-btn-prev:hover {
  transform: translateY(-50%) scale(1.08);
}

.lightbox-btn-next {
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-btn-next:hover {
  transform: translateY(-50%) scale(1.08);
}

@media (max-width: 640px) {
  .lightbox-btn-prev, .lightbox-btn-next {
    display: none;
  }
}

/* Escenario de Imagen en el Lightbox */
.lightbox-stage {
  position: relative;
  width: 100%;
  flex: 1;
  min-height: 0;
  background-color: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 12px;
  touch-action: pan-y pinch-zoom;
}

@media (min-width: 641px) {
  .lightbox-stage {
    min-height: 380px;
    max-height: 62vh;
    padding: 20px;
  }
}

@media (min-width: 1024px) {
  .lightbox-stage {
    min-height: 440px;
    max-height: 66vh;
    padding: 24px;
  }
}

.lightbox-image {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  transition: opacity 0.2s ease;
  user-select: none;
  -webkit-user-drag: none;
}

.lightbox-loader {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-card);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.lightbox-loader.active {
  opacity: 1;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border-subtle);
  border-top-color: var(--border-strong);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Barra Inferior del Lightbox */
.lightbox-footer {
  padding: 14px 16px;
  padding-bottom: max(14px, env(safe-area-inset-bottom));
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .lightbox-footer {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
}

@media (min-width: 641px) {
  .lightbox-footer {
    padding: 18px 24px;
    gap: 20px;
  }
}

.lightbox-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1;
  min-width: 0;
}

.lightbox-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lightbox-brand {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.lightbox-counter {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
}

.lightbox-product-name {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
  text-transform: uppercase;
  line-height: 1.25;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (min-width: 641px) {
  .lightbox-product-name {
    font-size: 1.35rem;
  }
}

.lightbox-size-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  background-color: var(--bg-elevated);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  width: fit-content;
  max-width: 100%;
}

@media (min-width: 641px) {
  .lightbox-size-pill {
    font-size: 0.8125rem;
    padding: 4px 10px;
  }
}

.lightbox-actions {
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .lightbox-actions {
    width: 100%;
  }
}

.btn-whatsapp-nike {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  background-color: var(--nike-black);
  color: var(--nike-white);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
  min-height: 44px;
}

@media (max-width: 640px) {
  .btn-whatsapp-nike {
    width: 100%;
  }
}

@media (min-width: 641px) {
  .btn-whatsapp-nike {
    padding: 14px 28px;
    font-size: 0.875rem;
    gap: 10px;
  }
}

@media (prefers-color-scheme: dark) {
  .btn-whatsapp-nike {
    background-color: var(--nike-white);
    color: var(--nike-black);
  }
}

.btn-whatsapp-nike:hover {
  background-color: var(--accent-green);
  color: #ffffff;
  transform: scale(1.02);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

.btn-whatsapp-nike .icon-whatsapp {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

@media (min-width: 641px) {
  .btn-whatsapp-nike .icon-whatsapp {
    width: 20px;
    height: 20px;
  }
}

/* ==========================================================================
   Pie de Página Estilo Nike (Nike Dark Footer)
   ========================================================================== */
.nike-footer {
  background-color: #111111;
  color: #8d8d8d;
  padding: 40px 0 max(24px, env(safe-area-inset-bottom)) 0;
  border-top: 1px solid #222222;
  margin-top: auto;
}

@media (min-width: 768px) {
  .nike-footer {
    padding: 64px 0 36px 0;
  }
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-bottom: 36px;
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 48px;
  }
}

.footer-col-title {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 12px;
}

@media (min-width: 768px) {
  .footer-col-title {
    margin-bottom: 16px;
  }
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

@media (min-width: 768px) {
  .footer-links {
    gap: 10px;
  }
}

.footer-text {
  font-size: 0.8125rem;
  line-height: 1.55;
  color: #8d8d8d;
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 20px;
  border-top: 1px solid #222222;
  font-size: 0.75rem;
  color: #707072;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    gap: 12px;
  }
}

.footer-copyright {
  color: #8d8d8d;
}

.footer-disclaimer {
  color: #555555;
}

/* ==========================================================================
   Accesibilidad y Preferencias de Movimiento
   ========================================================================== */
:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}