/* ==========================================================================
   SIN FRONTERAS - Identidad Corporativa & Estilo Urbano Premium
   Paleta Oficial: Negro Profundo (#0a0a0c), Blanco (#ffffff) y Rojo Acento (#e50914)
   Tipografía: Syne & Plus Jakarta Sans
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Syne:wght@600;700;800&display=swap');

:root {
  --bg-primary: #0a0a0c;
  --bg-secondary: #111115;
  --bg-card: #14141a;
  --bg-card-hover: #1b1b22;
  --text-main: #f9f9fb;
  --text-muted: #9e9ea7;
  --text-dim: #63636e;
  --brand-red: #e50914;
  --brand-red-dark: #b8050e;
  --brand-red-light: #ff2a34;
  --brand-gradient: linear-gradient(135deg, #ff2a34 0%, #e50914 60%, #9e030a 100%);
  --brand-glow: 0 0 30px rgba(229, 9, 20, 0.3);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-red-subtle: rgba(229, 9, 20, 0.3);
}

html {
  scroll-behavior: smooth;
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-main);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  background-color: var(--bg-primary);
  color: var(--text-main);
}

/* Tipografía de Identidad */
.font-display {
  font-family: 'Syne', sans-serif;
  letter-spacing: -0.01em;
}

.text-gradient-red {
  background: linear-gradient(135deg, #ffffff 20%, #f3f3f5 60%, #e50914 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.red-accent-text {
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Botones & Componentes de Acción */
.btn-red-primary {
  background: var(--brand-gradient);
  color: #ffffff;
  font-weight: 700;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 20px rgba(229, 9, 20, 0.35);
  position: relative;
  overflow: hidden;
}

.btn-red-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(229, 9, 20, 0.55);
  filter: brightness(1.08);
}

.btn-red-outline {
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.03);
  color: #f9f9fb;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.btn-red-outline:hover {
  border-color: var(--brand-red);
  background: rgba(229, 9, 20, 0.1);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 4px 18px rgba(229, 9, 20, 0.2);
}

/* Tarjetas Premium Streetwear */
.urban-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.urban-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--brand-red), transparent);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.urban-card:hover {
  border-color: var(--border-red-subtle);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

.urban-card:hover::before {
  opacity: 1;
}

/* Encabezado Fijo */
#main-header {
  transition: background-color 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease, padding 0.3s ease;
}

#main-header.scrolled {
  background-color: rgba(10, 10, 12, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

/* Zoom de Imágenes */
.image-zoom-container {
  overflow: hidden;
}

.image-zoom-container img {
  transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1), filter 0.7s ease;
}

.image-zoom-container:hover img {
  transform: scale(1.05);
}

/* Barra de Desplazamiento Personalizada */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #0a0a0c;
}

::-webkit-scrollbar-thumb {
  background: #22222b;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--brand-red-dark);
}

/* Modales Legales y Accesibilidad */
.modal-backdrop {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  transform: scale(0.96) translateY(12px);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-backdrop.active .modal-content {
  transform: scale(1) translateY(0);
}

/* Animación de Pulso para Botón Flotante */
@keyframes redPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5);
  }
  70% {
    box-shadow: 0 0 0 16px rgba(37, 211, 102, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
  }
}

.whatsapp-pulse {
  animation: redPulse 2.5s infinite;
}