*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:Arial,sans-serif;
}

body{
background:#f4f7fb;
color:#222;
}

nav{
background: #002b5c;
padding:15px;
text-align:center;
}

nav a{
color:white;
margin:0 10px;
text-decoration:none;
font-weight:bold;
}

header{
background: url('hangar.jpg') center/cover;
padding:80px 20px;
text-align:center;
color:white;
}

.logo{
width:140px;
}

.logo a{
width:20px;
align:left;
}

.logo b{
width:20px;
align:right;
}
.container{
max-width:1000px;
margin:auto;
padding:30px 20px;
}

.card{
background:white;
padding:25px;
border-radius:15px;
margin-bottom:25px;
box-shadow:0 5px 15px rgba(0,0,0,0.1);
}

.contact{
  background:#002b5c;
  color:white;
  border-radius:20px;
  padding:40px;
  text-align:center;
}

.contact a{
  color:#ffd400;
}

img{
width:100%;
border-radius:15px;
margin-top:20px;
}

footer{
background:#00152f;
color:white;
text-align:center;
padding:20px;
margin-top:30px;
}

.contenedor-columnas {
  display: flex;
  gap: 20px;
}

.columna {
  flex: 1;
  background:#002b5c;
  padding: 20px;
}

@media(max-width:768px){
nav a{
display:block;
margin:10px 0;
}

header h1{
font-size:2rem;
}
}
}