/* Reseteo y variables base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --text-main: #1a1a1a;
  --text-muted: #555555;
  --focus-color: #005fcc;
}

/* Foco visible accesible por teclado (Criterio WCAG 2.4.7) */
:focus-visible {
  outline: 3px solid var(--focus-color);
  outline-offset: 3px;
}

/* Ocultar visualmente pero mantener accesible para lectores de pantalla */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Estructura general de la vista interna */
body.inner-body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

/* Gradiente único heredado de la carta (bg-1) */
.bg-1 {
  background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 99%, #fecfef 100%);
}

.product-main {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-grow: 1;
  padding: 2rem;
}

/* Tarjeta central con efecto de transparencia y desenfoque */
.product-card-view {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  padding: 3.5rem 2.5rem;
  border-radius: 24px;
  text-align: center;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  max-width: 480px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: center;
}

.product-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.2;
}

/* Botón de WhatsApp estilizado */
.btn-whatsapp {
  background-color: #25D366;
  color: #ffffff;
  padding: 0.85rem 2rem;
  border-radius: 12px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1rem;
  display: inline-block;
  transition: background-color 0.2s ease, transform 0.2s ease;
  box-shadow: 0 4px 10px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background-color: #1ebc5a;
  transform: translateY(-2px);
}

/* Pie de página limpio */
.product-footer {
  text-align: center;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}