body{
    font-family: Arial, sans-serif;
    background: #0a2f3f;
    margin: 0;
    color: #fff;
}

header{
    background:#1b4b5c;
    padding:20px;
    display:flex;
    align-items:center;
    justify-content:space-between;
}

header img{
    height:50px;
}

nav a{
    color:#fff;
    margin-left:20px;
    text-decoration:none;
    font-weight:bold;
}

.cards{
    display:flex;
    justify-content:space-around;
    flex-wrap:wrap;
    margin:20px;
}

.card{
    background: linear-gradient(45deg, orange, yellow, green);
    padding:20px;
    width:200px;
    border-radius:10px;
    margin:10px;
    text-align:center;
    font-weight:bold;
    transition:0.3s;
    color:#000;
    cursor:pointer;
}

.card:hover{
    transform:scale(1.05);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

input[type=text], input[type=password], input[type=url], input[type=date], input[type=time]{
    width:100%;
    padding:10px;
    margin:10px 0;
    border:none;
    border-radius:5px;
}

input[type=submit]{
    width:100%;
    padding:10px;
    background:orange;
    border:none;
    border-radius:5px;
    cursor:pointer;
    font-weight:bold;
}