body{
    margin:0;
    font-family:Arial, Helvetica, sans-serif;
    background:#0b0b0b;
    color:#fff;
    min-height:100vh;
    display:flex;
    align-items:center;
    justify-content:center;
    text-align:center;
}
.container{padding:40px 20px;}
.logo{max-width:420px;width:90%;height:auto;margin-bottom:30px;}
h1{margin:0 0 15px;font-size:2.2rem;}
p{opacity:.92;font-size:1.1rem;}
.instagram-section{margin-top:30px;}
.instagram-button{
    display:inline-block;
    margin-top:10px;
    padding:12px 24px;
    text-decoration:none;
    color:#fff;
    border:1px solid #fff;
    border-radius:6px;
}
.instagram-button:hover{opacity:.85;}