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

body{
    background:#0f0f0f;
    color:#ffffff;
    font-family:Arial, sans-serif;
    min-height:100vh;
}

nav{
    background:#1a1a1a;
    padding:15px;
    text-align:center;
    border-bottom:1px solid #c0c0c0;
}

nav a{
    color:#c0c0c0;
    text-decoration:none;
    margin:0 15px;
    font-weight:bold;
}

nav a:hover{
    color:#ffffff;
}

.container{
    width:90%;
    max-width:1000px;
    margin:40px auto;
    background:#1a1a1a;
    border:1px solid #c0c0c0;
    border-radius:10px;
    padding:30px;
}

input,
textarea{
    width:100%;
    background:#111;
    color:#fff;
    border:1px solid #c0c0c0;
    padding:12px;
    margin:10px 0;
    border-radius:5px;
}

textarea{
    min-height:250px;
    resize:vertical;
}

button{
    background:#c0c0c0;
    color:#000;
    border:none;
    padding:12px 25px;
    cursor:pointer;
    border-radius:5px;
    font-weight:bold;
}

button:hover{
    opacity:.85;
}

h2{
    margin:20px 0 10px;
}

@media(max-width:768px){
    .container{
        width:95%;
        padding:20px;
    }

    nav a{
        display:block;
        margin:10px 0;
    }
}/* CSS Document */