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

body{
background:#111827;
color:white;
}

.topbar{
background:#000;
padding:15px;
display:flex;
justify-content:space-between;
align-items:center;
flex-wrap:wrap;
}

.logo{
font-size:24px;
font-weight:bold;
color:#00b7ff;
}

nav a{
color:white;
text-decoration:none;
margin:10px;
}

.hero{
padding:60px 20px;
text-align:center;
background:linear-gradient(135deg,#001,#003566);
}

.hero h1{
font-size:40px;
margin-bottom:20px;
}

.hero p{
font-size:18px;
margin-bottom:20px;
}

.btn{
background:#00b7ff;
padding:12px 25px;
border-radius:10px;
text-decoration:none;
color:white;
display:inline-block;
border:none;
cursor:pointer;
}

.contenedor{
padding:20px;
}

.card{
background:#1f2937;
padding:20px;
border-radius:15px;
margin-bottom:20px;
}

input,
textarea,
select{

width:100%;
padding:12px;
border:none;
border-radius:10px;
font-size:16px;

}

.menu{

display:flex;
gap:10px;
flex-wrap:wrap;
margin-top:20px;

}

.menu a{

background:#00b7ff;
padding:10px 15px;
border-radius:10px;
color:white;
text-decoration:none;

}

img{
max-width:100%;
}

@media(max-width:768px){

.hero h1{
font-size:28px;
}

.topbar{
flex-direction:column;
}

}