body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f8f9fc;
}

.navbar {
  background-color: white;
  padding: 1rem 2rem;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.navbar-nav .nav-link {
  color: #1e237e;
  font-weight: 500;
  margin-right: 1rem;
}

.btn-demo {
  background-color: #1e237e;
  color: white;
  border-radius: 25px;
  font-weight: 500;
  text-decoration: none;
}

.btn-demo:hover {
  background-color: #142062;
  color: #ffffff;
}

.hero-section {
  padding: 3rem 0;
  background-color: #e9f1fb;
}

.hero-text h1 {
  color: #1e237e;
  font-size: 2.8rem;
  font-weight: 700;
}

.hero-text h1 span {
  color: #63a4db;
}

.hero-text p {
  font-size: 1.2rem;
  margin-top: 1rem;
  margin-bottom: 2rem;
  color: #333;
}

.rating {
  font-size: 1.1rem;
  color: #1e237e;
}

.titulo-azul {
  color: #1e237e;
}

footer a:hover {
  text-decoration: underline;
}

.btn-whatsapp {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: #25d366;
  color: white;
  font-size: 1.8rem;
  border: none;
  border-radius: 50%;
  padding: 0.6rem 0.8rem;
  z-index: 1000;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  transition: transform 0.3s;
}

.btn-whatsapp:hover {
  transform: scale(1.1);
  color: white;
}

.btn-top {
  position: fixed;
  bottom: 90px;
  right: 20px;
  background-color: #1e237e;
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 1.5rem;
  padding: 0.5rem 0.7rem;
  display: none;
  z-index: 1000;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.btn-top:hover {
  background-color: #142062;
}

@media (max-width: 768px) {
  .hero-text h1 {
    font-size: 2rem;
  }

  .hero-text p {
    font-size: 1rem;
  }
}

.card-img-top {
  height: 180px;
  object-fit: contain;
  background-color: #fff;
  border-top-left-radius: 0.5rem;
  border-top-right-radius: 0.5rem;
}