/*=============================================
FOOTER AVT - IDENTITY SYSTEM (design.md)
Fondo oscuro: var(--avt-secondary, #114B5F)
=============================================*/

.footer-avt {
  background-color: var(--avt-secondary, #114B5F);
  color: #ffffff;
  font-family: 'Poppins', sans-serif;
  margin-top: 24px;
}

.footer-avt-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

/*=============================================
GRID PRINCIPAL
=============================================*/

.footer-avt-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding: 40px 0 24px;
}

@media (min-width: 768px) {
  .footer-avt-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
}

@media (min-width: 992px) {
  .footer-avt-grid {
    grid-template-columns: repeat(4, 1fr);
    padding: 48px 0 32px;
  }
}

.footer-avt-marca {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.footer-avt-logo img {
  max-width: 180px;
  height: auto;
}

.footer-avt-descripcion {
  color: rgba(255, 255, 255, 0.85);
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
}

/*=============================================
COLUMNAS
=============================================*/

.footer-avt-titulo {
  color: #ffffff;
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-avt-lista {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-avt-lista li a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 14px;
  text-decoration: none;
  padding: 6px 0;
  transition: color 0.2s ease;
}

.footer-avt-lista li a:hover,
.footer-avt-lista li a:focus-visible {
  color: #ffffff;
}

.footer-avt-lista li a i {
  width: 18px;
  text-align: center;
  color: var(--avt-primary, #FF6B00);
}

/*=============================================
BOTÓN INSTALAR APP (PWA)
=============================================*/

.footer-avt-instalar {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: transparent;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: var(--avt-radius, 8px);
  padding: 10px 18px;
  font-family: 'Poppins', sans-serif;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  min-height: 44px;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.footer-avt-instalar:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: #ffffff;
}

.footer-avt-instalar[hidden] {
  display: none;
}

.footer-avt-instalar:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 2px;
}

/*=============================================
REDES SOCIALES
=============================================*/

.footer-avt-social {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-avt-social-item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 20px;
  background-color: rgba(255, 255, 255, 0.08);
  text-decoration: none;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.footer-avt-social-item:hover {
  background-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.footer-avt-social-item:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 2px;
}

/*=============================================
BARRA INFERIOR
=============================================*/

.footer-avt-bar {
  background-color: rgba(0, 0, 0, 0.15);
  padding: 16px 0;
}

.footer-avt-bar p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 13px;
  margin: 0;
  text-align: center;
}

/*=============================================
MOVIMIENTO REDUCIDO
=============================================*/

@media (prefers-reduced-motion: reduce) {
  .footer-avt-social-item {
    transition: none;
    transform: none;
  }
}