body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  background-color: #00497a;
  color: white;
}

/* header */

header {
  background-color: #005b96;
  padding: 20px 20px 1px;
  text-align: center;
}

header img {
  max-width: 400px;
  width: 80%;
  height: auto;
}

/* menu */

nav {
  background-color: #003b63;
  text-align: center;
  padding: 10px 0;
}

nav a {
  color: white;
  margin: 0 15px;
  text-decoration: none;
  font-weight: bold;
}

/* portada */

.hero {
  padding: 60px 20px;
  text-align: center;
}

/* secciones */

section {
  padding: 40px 20px;
  max-width: 900px;
  margin: 40px auto;
  background: white;
  color: #333;
  border-radius: 8px;
}

/* formulario */

.contact-form {
  max-width: 500px;
  margin: auto;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 10px;
  margin: 8px 0;
  border: 1px solid #ccc;
  border-radius: 4px;
}

.contact-form button {
  background-color: #005b96;
  color: white;
  border: none;
  padding: 10px 20px;
  font-size: 1em;
  cursor: pointer;
  border-radius: 5px;
}

/* footer */

footer {
  background-color: #222;
  color: white;
  text-align: center;
  padding: 20px;
}

/* animaciones */

button:hover{
  opacity:0.9;
  transform:scale(1.05);
  transition:0.2s;
}

/* whatsapp */

.whatsapp{
  position:fixed;
  bottom:20px;
  right:20px;
  background:#25D366;
  color:white;
  padding:14px 18px;
  border-radius:30px;
  font-weight:bold;
  text-decoration:none;
  box-shadow:0 4px 10px rgba(0,0,0,0.2);
}

/* responsive */

@media (max-width:600px){
  .hero h1{
    font-size:1.8em;
  }
}