*{box-sizing:border-box}

body{
    margin:0;
    font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    background:#f7f8fb;
    color:#20242b;
    line-height:1.65;
}

header{
    background:#21172f;
    color:#fff;
    padding:18px 24px;
}

header .wrap{
    max-width:920px;
    margin:auto;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
}

.brand{
    color:#fff;
    text-decoration:none;
    font-size:1.25rem;
    font-weight:700;
}

header nav{
    display:flex;
    gap:16px;
    flex-wrap:wrap;
}

header nav a{
    color:#eee7f5;
    text-decoration:none;
}

main{
    max-width:920px;
    margin:34px auto;
    padding:0 20px;
}

article{
    background:#fff;
    border:1px solid #e2e5ea;
    border-radius:14px;
    padding:32px;
    box-shadow:0 3px 14px rgba(0,0,0,.04);
}

h1{
    margin-top:0;
    line-height:1.2;
}

h2{
    margin-top:30px;
    font-size:1.18rem;
}

a{
    color:#68458c;
}

.muted{
    color:#667085;
}

.notice{
    padding:15px 18px;
    background:#f4eff9;
    border-radius:9px;
    margin:20px 0;
}

footer{
    max-width:920px;
    margin:25px auto 40px;
    padding:0 20px;
    color:#667085;
    font-size:.9rem;
}

footer a{
    margin-right:15px;
}

@media(max-width:650px){
    article{
        padding:22px;
    }

    header .wrap{
        display:block;
    }

    header nav{
        margin-top:10px;
    }
}