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

body{
    line-height:1.6;
}

header{
    background:#0088cc;
    color:white;
    position:sticky;
    top:0;
}

nav{
    max-width:1100px;
    margin:auto;
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:15px;
}

nav ul{
    display:flex;
    list-style:none;
}

nav ul li{
    margin-left:20px;
}

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

#menuBtn{
    display:none;
    background:none;
    border:none;
    color:white;
    font-size:24px;
    cursor:pointer;
}

.hero{
    height:90vh;
    background:linear-gradient(rgba(0,0,0,.5),rgba(0,0,0,.5)),
    url("https://images.unsplash.com/photo-1548839140-29a749e1cf4d?auto=format&fit=crop&w=1400&q=80");
    background-size:cover;
    background-position:center;
    display:flex;
    justify-content:center;
    align-items:center;
    color:white;
    text-align:center;
}

.hero h1{
    font-size:48px;
}

.hero p{
    margin:20px 0;
}

.btn{
    background:#00bfff;
    color:white;
    padding:12px 25px;
    text-decoration:none;
    border-radius:5px;
}

.container{
    max-width:1100px;
    margin:auto;
    padding:60px 20px;
    text-align:center;
}

.cards{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:20px;
    margin-top:30px;
}

.card{
    background:#f5f5f5;
    padding:25px;
    border-radius:8px;
    transition:.3s;
}

.card:hover{
    transform:translateY(-8px);
}

form{
    display:flex;
    flex-direction:column;
    gap:15px;
    max-width:500px;
    margin:auto;
}

input,textarea{
    padding:12px;
}

button{
    padding:12px;
    background:#0088cc;
    color:white;
    border:none;
    cursor:pointer;
}

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

@media(max-width:768px){

nav ul{
    display:none;
    flex-direction:column;
    background:#0088cc;
    position:absolute;
    top:60px;
    right:0;
    width:200px;
}

nav ul.show{
    display:flex;
}

#menuBtn{
    display:block;
}

.hero h1{
    font-size:32px;
}

}