/* ==========================================================================
   ALIENTA ROJINEGRO — HOJA DE ESTILOS EDITORIAL PREMIUM
   Inspirado en la estética COPA Football: Minimalista, sobrio, fotográfico.
   Paleta: #0A0A0A (Fondo) | #151515 (Superficie) | #A6192E (Rojo) | #C41E3A (Acento)
   ========================================================================== */

:root {
  --bg-primary: #0A0A0A;
  --bg-secondary: #151515;
  --bg-card: #121212;
  --bg-tertiary: #1C1C1C;
  --border-color: #292929;
  --border-subtle: #1C1C1C;
  --red-primary: #A6192E;
  --red-hover: #C41E3A;
  --text-primary: #F5F3EF;
  --text-secondary: #A5A5A5;
  --text-muted: #6B6B6B;
  
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-display: 'Plus Jakarta Sans', sans-serif;
  
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --radius-sm: 2px;
  --radius-md: 4px;
  --container-max: 1240px;
}

/* --------------------------------------------------------------------------
   RESET & REGLAS BASE
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.5;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  user-select: none;
  -webkit-user-drag: none;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1rem, 4vw, 2.5rem);
  padding-right: clamp(1rem, 4vw, 2.5rem);
}

/* --------------------------------------------------------------------------
   HEADER
   -------------------------------------------------------------------------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: border-color var(--transition-fast);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 96px;
}

.logo-link {
  display: flex;
  align-items: center;
  height: 100%;
}

/* Logo aumentado 30–40% adicional, aprovechando el alto disponible */
.logo-img {
  height: 94px;
  width: auto;
  max-width: 300px;
  object-fit: contain;
  transition: opacity var(--transition-fast);
}

.logo-link:hover .logo-img {
  opacity: 0.88;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-primary);
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.btn-arrow {
  display: inline-block;
  font-size: 1.1em;
  transition: transform var(--transition-fast);
}

.btn:hover .btn-arrow {
  transform: translateX(4px);
}

.btn-header {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 0.65rem 1.35rem;
  font-size: 0.82rem;
}

.btn-header:hover {
  border-color: var(--red-primary);
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.btn-primary {
  background-color: var(--red-primary);
  color: #FFFFFF;
  border: 1px solid var(--red-primary);
  padding: 0.95rem 2.25rem;
  font-size: 0.88rem;
  letter-spacing: 0.1em;
}

.btn-primary:hover {
  background-color: var(--red-hover);
  border-color: var(--red-hover);
}

/* --------------------------------------------------------------------------
   HERO SECTION
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  padding-top: clamp(3rem, 6vw, 5.5rem);
  padding-bottom: clamp(3.5rem, 7vw, 6.5rem);
  border-bottom: 1px solid var(--border-color);
  background: radial-gradient(circle at 75% 30%, rgba(166, 25, 46, 0.07) 0%, transparent 65%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5.5vw, 4.4rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  animation: heroFadeUp 0.65s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.55;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 2.25rem;
  font-weight: 400;
  animation: heroFadeUp 0.65s cubic-bezier(0.16, 1, 0.3, 1) 0.12s both;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  animation: heroFadeUp 0.65s cubic-bezier(0.16, 1, 0.3, 1) 0.22s both;
}

/* Fotografía Hero con Logo Integrado en su espacio negativo */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  animation: heroFadeIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.15s both;
}

.hero-image-wrapper {
  position: relative;
  width: 100%;
  max-width: 580px;
  display: block;
  margin: 0 auto;
}

.hero-image {
  width: 100%;
  height: auto;
  max-height: 560px;
  object-fit: contain;
  filter: drop-shadow(0 25px 40px rgba(0, 0, 0, 0.85));
}

/* Logo posicionado en el espacio negativo superior izquierdo de la fotografía */
.hero-overlay-logo-container {
  position: absolute;
  top: 6%;
  left: 6%;
  width: 44%;
  max-width: 240px;
  z-index: 2;
  pointer-events: none;
  animation: heroFadeIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.3s both;
}

.hero-overlay-logo {
  width: 100%;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 16px rgba(0, 0, 0, 0.75));
}

/* --------------------------------------------------------------------------
   CATALOG SECTION
   -------------------------------------------------------------------------- */
.catalog-section {
  padding-top: clamp(3.5rem, 7vw, 5.5rem);
  padding-bottom: clamp(4rem, 8vw, 6.5rem);
}

.section-header {
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}

.section-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--red-primary);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 0.75rem;
}

.section-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
}

/* Grid de Productos */
.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 640px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem;
  }
}

@media (min-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2.25rem;
  }
}

/* Tarjeta de Producto */
.product-card {
  display: flex;
  flex-direction: column;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), border-color var(--transition-fast);
}

.product-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.product-card:hover {
  border-color: #2F2F2F;
}

/* Contenedor Visual / Carrusel */
.card-media {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  background-color: #141414;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Carrusel de diapositivas */
.carousel-track {
  display: flex;
  width: 100%;
  height: 100%;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  -webkit-overflow-scrolling: touch;
}

.carousel-track::-webkit-scrollbar {
  display: none;
}

.carousel-slide {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  scroll-snap-align: start;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem;
}

/* Fotografía de Producto */
.card-img {
  max-width: 95%;
  max-height: 95%;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 12px 22px rgba(0, 0, 0, 0.7));
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.product-card:hover .card-img {
  transform: scale(1.025);
}

/* Controles de Carrusel (Desktop) */
.carousel-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background-color: rgba(10, 10, 10, 0.85);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  opacity: 0;
  transition: all var(--transition-fast);
  backdrop-filter: blur(6px);
}

.carousel-nav-btn.prev {
  left: 0.75rem;
}

.carousel-nav-btn.next {
  right: 0.75rem;
}

.product-card:hover .carousel-nav-btn,
.carousel-nav-btn:focus-visible {
  opacity: 0.85;
}

.carousel-nav-btn:hover {
  opacity: 1;
  background-color: var(--red-primary);
  border-color: var(--red-primary);
  color: #FFFFFF;
}

/* Indicadores de Carrusel (Dots) */
.carousel-dots {
  position: absolute;
  bottom: 0.75rem;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 0.35rem;
  z-index: 5;
  pointer-events: none;
}

.dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.2);
  transition: all var(--transition-fast);
}

.dot.active {
  background-color: var(--red-primary);
  width: 16px;
  border-radius: 3px;
}

/* Información del Producto */
.card-content {
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

/* Numeración editorial */
.card-meta-top {
  display: flex;
  align-items: center;
  margin-bottom: 0.45rem;
}

.product-number {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  font-family: var(--font-sans);
}

.card-header-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.product-name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

.product-price {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  white-space: nowrap;
}

.product-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: 1.4rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex-grow: 1;
}

/* Botón Comprar */
.btn-buy {
  width: 100%;
  background-color: #1A1A1A;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 0.85rem 1.1rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all var(--transition-fast);
}

.product-card:hover .btn-buy,
.btn-buy:hover {
  background-color: var(--red-primary);
  border-color: var(--red-primary);
  color: #FFFFFF;
}

.btn-buy .btn-arrow {
  transition: transform var(--transition-fast);
}

.btn-buy:hover .btn-arrow {
  transform: translateX(4px);
}

/* Estado de carga / vacío */
.loading-state, .empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 1rem;
  color: var(--text-secondary);
}

.loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border-color);
  border-top-color: var(--red-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 1rem;
}

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

/* --------------------------------------------------------------------------
   SECCIÓN COMERCIAL FINAL / CTA DE CIERRE
   -------------------------------------------------------------------------- */
.final-cta-section {
  padding-top: clamp(4rem, 8vw, 6.5rem);
  padding-bottom: clamp(4rem, 8vw, 6.5rem);
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  text-align: center;
}

.final-cta-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.final-cta-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 800;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  line-height: 1.1;
}

.final-cta-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  margin-bottom: 2.25rem;
  line-height: 1.5;
}

.btn-final-cta {
  padding: 1rem 2.5rem;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
}

/* --------------------------------------------------------------------------
   FOOTER CON SELLO OFICIAL
   -------------------------------------------------------------------------- */
.footer {
  padding: clamp(3rem, 6vw, 4.5rem) 0 3rem;
  background-color: var(--bg-primary);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 2rem;
}

.footer-brand-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Sello de cierre de marca */
.footer-seal {
  height: clamp(82px, 10vw, 110px);
  width: auto;
  max-width: 125px;
  object-fit: contain;
  opacity: 0.92;
  filter: drop-shadow(0 6px 20px rgba(0, 0, 0, 0.65));
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.footer-seal:hover {
  opacity: 1;
  transform: scale(1.03);
}

.footer-social {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--red-primary);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

/* --------------------------------------------------------------------------
   ANIMACIONES SUTILES
   -------------------------------------------------------------------------- */
@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* --------------------------------------------------------------------------
   RESPONSIVE QUERIES
   -------------------------------------------------------------------------- */
@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3.5rem;
  }

  .hero-title {
    max-width: 620px;
  }
}

@media (max-width: 640px) {
  .header-inner {
    height: 78px;
  }

  .logo-img {
    height: 72px;
    max-width: 220px;
  }

  .nav-links {
    gap: 1rem;
  }

  .btn-header {
    padding: 0.5rem 0.95rem;
    font-size: 0.78rem;
  }

  .hero-actions {
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-overlay-logo-container {
    top: 6%;
    left: 6%;
    width: 44%;
    max-width: 180px;
  }

  /* En móvil, las flechas del carrusel se ocultan para priorizar el swipe táctil */
  .carousel-nav-btn {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   PREFERS-REDUCED-MOTION
   -------------------------------------------------------------------------- */
@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;
  }

  .product-card {
    opacity: 1 !important;
    transform: none !important;
  }

  .hero-title,
  .hero-subtitle,
  .hero-actions,
  .hero-visual,
  .hero-overlay-logo-container {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }

  .product-card:hover .card-img {
    transform: none !important;
  }
}