/* ====================================================================
   LA VITRINE - ESTILOS PERSONALIZADOS & DESIGN SYSTEM
   Paleta: Dark Luxury Grooming (Negro Obsidiana, Oro Ámbar y Esmeralda)
   ==================================================================== */

:root {
  --bg-main: #0a0d14;
  --bg-surface: #111723;
  --bg-surface-elevated: #172030;
  --bg-surface-hover: #1f2b40;
  
  --primary-gold: #f59e0b;
  --primary-gold-hover: #d97706;
  --primary-gold-light: #fef3c7;
  --accent-gold-gradient: linear-gradient(135deg, #fbbf24 0%, #d97706 100%);
  
  --whatsapp-green: #25D366;
  --whatsapp-hover: #20ba5a;
  --whatsapp-glow: rgba(37, 211, 102, 0.35);

  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-gold: rgba(245, 158, 11, 0.3);
  
  --shadow-gold: 0 10px 25px -5px rgba(245, 158, 11, 0.25);
  --shadow-card: 0 20px 40px -15px rgba(0, 0, 0, 0.6);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display: 'Cinzel', 'Playfair Display', Georgia, serif;
}

/* Reset y base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  line-height: 1.6;
}

/* Tipografía de Lujo */
.font-brand {
  font-family: var(--font-display);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.text-gold-gradient {
  background: var(--accent-gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* Fondos y Efectos Glassmorphism */
.glass-panel {
  background: rgba(17, 23, 35, 0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-subtle);
}

.glass-nav {
  background: rgba(10, 13, 20, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

.glow-card {
  position: relative;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease, border-color 0.3s ease;
}

.glow-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.8), 0 0 20px -3px rgba(245, 158, 11, 0.2);
  border-color: var(--border-gold);
}

/* Botones principales con alto CTR */
.btn-gold {
  background: var(--accent-gold-gradient);
  color: #0b0f14;
  font-weight: 700;
  border-radius: var(--radius-full);
  padding: 0.875rem 1.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  transition: all 0.25s ease;
  box-shadow: var(--shadow-gold);
  border: none;
  cursor: pointer;
  text-decoration: none;
  font-size: 1rem;
}

.btn-gold:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 15px 30px -5px rgba(245, 158, 11, 0.45);
}

.btn-gold:active {
  transform: translateY(0);
}

.btn-whatsapp {
  background-color: var(--whatsapp-green);
  color: #ffffff;
  font-weight: 700;
  border-radius: var(--radius-full);
  padding: 0.875rem 1.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  transition: all 0.25s ease;
  border: none;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 8px 20px -3px var(--whatsapp-glow);
}

.btn-whatsapp:hover {
  background-color: var(--whatsapp-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -3px rgba(37, 211, 102, 0.5);
}

.btn-outline {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 0.875rem 1.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
  cursor: pointer;
  text-decoration: none;
  font-weight: 600;
}

.btn-outline:hover {
  border-color: var(--primary-gold);
  background: rgba(245, 158, 11, 0.08);
  color: var(--primary-gold-light);
}

/* Badge de Urgencia & Popular */
.badge-popular {
  background: var(--accent-gold-gradient);
  color: #0b0f14;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.badge-tag {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.35);
  color: #fbbf24;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
}

/* Comparador interactivo Antes / Después (Interactive Slider) */
.comparison-container {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  user-select: none;
}

.comparison-image {
  width: 100%;
  height: 380px;
  object-fit: cover;
  display: block;
}

.comparison-overlay {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 50%;
  overflow: hidden;
  border-right: 3px solid var(--primary-gold);
  transition: width 0.05s ease-out;
}

.comparison-slider-handle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--primary-gold);
  color: #0b0f14;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.8), 0 0 15px rgba(245, 158, 11, 0.8);
  cursor: ew-resize;
  pointer-events: none;
}

/* Interactive Accordion (FAQ) */
details.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1.1rem 1.25rem;
  transition: all 0.25s ease;
}

details.faq-item[open] {
  border-color: var(--border-gold);
  background: var(--bg-surface-elevated);
}

details.faq-item summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text-main);
}

details.faq-item summary::-webkit-details-marker {
  display: none;
}

details.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--primary-gold);
  transition: transform 0.25s ease;
}

details.faq-item[open] summary::after {
  content: "−";
  transform: rotate(180deg);
}

/* ====================================================================
   Modern Web Guidance: Implementación Estricta del Elemento <dialog>
   - overscroll-behavior: contain para evitar scroll en el fondo
   - ::backdrop con overscroll-behavior y blur
   - Animación de entrada y salida suave
   ==================================================================== */
dialog:modal {
  overscroll-behavior: contain;
  background: var(--bg-surface-elevated);
  color: var(--text-main);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.9), 0 0 35px -5px rgba(245, 158, 11, 0.2);
  padding: 2rem;
  max-width: 540px;
  width: 92%;
  margin: auto;
  opacity: 0;
  transform: scale(0.96) translateY(10px);
  transition: opacity 0.25s cubic-bezier(0.16, 1, 0.3, 1), transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), overlay 0.25s allow-discrete, display 0.25s allow-discrete;
}

dialog:modal[open] {
  opacity: 1;
  transform: scale(1) translateY(0);
}

@starting-style {
  dialog:modal[open] {
    opacity: 0;
    transform: scale(0.96) translateY(10px);
  }
}

dialog::backdrop {
  overflow: hidden;
  overscroll-behavior: contain;
  background: rgba(5, 7, 11, 0.82);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity 0.25s ease, overlay 0.25s allow-discrete, display 0.25s allow-discrete;
}

dialog[open]::backdrop {
  opacity: 1;
}

@starting-style {
  dialog[open]::backdrop {
    opacity: 0;
  }
}

/* Botón flotante de WhatsApp */
.floating-whatsapp {
  position: fixed;
  bottom: 1.75rem;
  right: 1.75rem;
  z-index: 99;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--whatsapp-green);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.45);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease;
  text-decoration: none;
}

.floating-whatsapp:hover {
  transform: scale(1.1) translateY(-2px);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.65);
}

.floating-whatsapp-ping {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--whatsapp-green);
  opacity: 0.7;
  animation: ping 2.2s cubic-bezier(0, 0, 0.2, 1) infinite;
  z-index: -1;
}

@keyframes ping {
  75%, 100% {
    transform: scale(1.6);
    opacity: 0;
  }
}

/* Barra de Anuncio Urgente Superior */
.top-banner {
  background: linear-gradient(90deg, #b45309 0%, #d97706 50%, #b45309 100%);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  text-align: center;
  padding: 0.5rem 1rem;
}

/* Radio Buttons personalizados para selección de kits */
.kit-radio-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  cursor: pointer;
  transition: all 0.2s ease;
}

.kit-radio-label:hover {
  border-color: rgba(245, 158, 11, 0.4);
  background: var(--bg-surface-elevated);
}

.kit-radio-label input[type="radio"]:checked + .kit-radio-content {
  color: var(--primary-gold);
}

.kit-radio-label:has(input[type="radio"]:checked) {
  border-color: var(--primary-gold);
  background: rgba(245, 158, 11, 0.08);
}

/* Selector de Idiomas */
.lang-btn {
  color: var(--text-muted);
  cursor: pointer;
  border: none;
  background: transparent;
  transition: all 0.2s ease;
}

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

.lang-btn.active {
  background: var(--accent-gold-gradient);
  color: #0b0f14 !important;
  font-weight: 700;
  box-shadow: 0 2px 10px rgba(245, 158, 11, 0.35);
}

/* ====================================================================
   Slide-Over Cart Drawer (<dialog class="cart-drawer">)
   ==================================================================== */
dialog.cart-drawer:modal {
  position: fixed;
  top: 0;
  right: 0;
  left: auto;
  bottom: 0;
  height: 100dvh;
  max-height: 100dvh;
  width: min(450px, 92dvw);
  margin: 0;
  border-radius: 0;
  border-left: 1px solid var(--border-gold);
  border-top: none;
  border-right: none;
  border-bottom: none;
  background: var(--bg-surface-elevated);
  padding: 0;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease, overlay 0.3s allow-discrete, display 0.3s allow-discrete;
  overscroll-behavior: contain;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.85);
}

dialog.cart-drawer:modal[open] {
  transform: translateX(0);
}

@starting-style {
  dialog.cart-drawer:modal[open] {
    transform: translateX(100%);
  }
}

.cart-item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.cart-qty-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s ease;
}

.cart-qty-btn:hover {
  background: rgba(245, 158, 11, 0.2);
  border-color: var(--primary-gold);
}

.cart-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  background: var(--primary-gold);
  color: #0b0f14;
  font-size: 0.65rem;
  font-weight: 800;
  border-radius: 50%;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.6);
}