footer {
    background: #4a4a4a;
    color: #fff;
}

.foot {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr 1fr;
    gap: 28px;
    padding: 34px 0
}

.foot h5 {
    margin: 0 0 10px;
    font: 700 15px Montserrat, sans-serif
}

.brand-foot {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px
}

.brand-foot img {
    height: 110px
}

.social {
    display: flex;
    gap: 12px;
    margin-top: 12px
}

.social a {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .12)
}

.copyright {
    border-top: 1px solid rgba(255, 255, 255, .2);
    text-align: center;
    padding: 12px;
    color: #e9e9e9;
    font-size: .9rem
}

/* WhatsApp flotante */
.whatsapp {
    position: fixed;
    right: 18px;
    bottom: 18px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #25D366;
    display: grid;
    place-items: center;
    color: #fff;
    box-shadow: var(--shadow);
    z-index: 60
}

/* Hover con mensaje emergente en WhatsApp */
.whatsapp::after {
  content: "¡Escríbenos por WhatsApp!";
  position: absolute;
  right: 70px; /* separa el texto del círculo */
  bottom: 12px;
  background: #25D366;
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  padding: 8px 14px;
  border-radius: 20px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, .15);
  opacity: 0;
  transform: translateX(10px);
  transition: all .3s ease;
  pointer-events: none;
  white-space: nowrap;
}

.whatsapp:hover::after {
  opacity: 1;
  transform: translateX(0);
}

/* Opcional: brillo al hover */
.whatsapp:hover {
  box-shadow: 0 0 14px rgba(37, 211, 102, .8);
  transform: scale(1.05);
  transition: all .3s ease;
}