body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
}

header.carrusel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px 20px;
  animation: cambioColor 8s infinite;
  color: white;
  position: relative;
  min-height: 180px;
  text-align: center;
}

@keyframes cambioColor {
  0% { background-color: #0066cc; }
  33% { background-color: #0077cc; }
  66% { background-color: #3399ff; }
  100% { background-color: #0066cc; }
}

.doctor-photo.left {
  position: absolute;
  left: 30px;
  top: 50%;
  transform: translateY(-50%);
}
.doctor-photo.left img {
  width: 190px;
  height: 190px;
  border-radius: 50%;
  box-shadow: 0 0 6px #000;
}

.estetoscopio-img.circle {
  position: absolute;
  bottom: 40px;
  right: 20px;
  overflow: hidden;
  width: 190px;
  height: 190px;
  box-shadow: 0 0 6px #000;
  border-radius: 50%;
}
.estetoscopio-img.circle img {
  width: 190px;
  height: 190px;
  object-fit: cover;
  border-radius: 50%;
}

.header-text {
  max-width: 500px;
}

.header-text h1 {
  margin: 0;
  font-size: 2.2em;
  font-weight: 700;
  text-shadow: 1px 1px 2px #333;
}

.header-text p {
  margin: 10px 0;
}

.cta {
  display: inline-block;
  padding: 10px 20px;
  background-color: #ffc107;
  color: #000;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
}

.redes {
  background-color: #e0f7fa;
  text-align: center;
  padding: 2px; /* reducido 20% */
}

.redes h2 {
  margin-bottom: 10px;
  color: #005a64;
}

.social-icons a {
  margin: 0 10px;
  display: inline-block;
  opacity: 0;
  animation: aparecer 1s forwards ease-out;
}
.social-icons a:nth-child(1) { animation-delay: 0.2s; }
.social-icons a:nth-child(2) { animation-delay: 0.4s; }
.social-icons a:nth-child(3) { animation-delay: 0.6s; }
.social-icons a:nth-child(4) { animation-delay: 0.8s; }

.section {
  padding: 15px 10px;
  text-align: center;
}

.section.sin-fondo {
  background-color: transparent;
}

.cards-img {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 20px;
}

.cards-img img {
  max-width: 300px;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 0 6px #999;
}

.qr-section {
  margin-top: 20px;
}

.qr-img {
  width: 120px;
  height: 120px;
  margin-top: 10px;
}

footer {
  background-color: #f0f0f0;
  padding: 15px;
  text-align: center;
  font-size: 0.9em;
}

@media screen and (max-width: 768px) {
  header.carrusel {
    flex-direction: column;
    padding: 20px 10px;
    text-align: center;
  }

  .doctor-photo.left {
    position: static;
    margin-bottom: 15px;
  }

  .estetoscopio-img.circle {
    position: static;
    margin-top: 15px;
  }

  .cards-img {
    flex-direction: column;
    align-items: center;
  }

  .cards-img img {
    width: 80%;
    max-width: 280px;
  }

  .header-text h1 {
    font-size: 1.7em;
  }

  .qr-img {
    width: 100px;
    height: 100px;
  }
}

@keyframes aparecer {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}