.auth-card {
    max-width: 30rem;
    margin: 4rem auto;
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .12);
    border-radius: .75rem;
    padding: 2.5rem;
}
.auth-card h1 { margin-top: 0; }
.auth-sub { opacity: .8; }
.auth-form label { display: block; font-weight: 600; margin-bottom: 1rem; }
.auth-form input {
    display: block; width: 100%; margin-top: .4rem;
    padding: .7rem 1rem; border-radius: .4rem;
    border: 1px solid rgba(255, 255, 255, .2);
    background: rgba(0, 0, 0, .25); color: inherit; font-size: 1rem;
}
.auth-form .btn { margin-top: .5rem; }
.auth-error { color: #ff9a9a; }
.auth-code, .token-box pre { font-family: 'Space Mono', monospace; }
.token-box { margin: 1rem 0; padding: 1rem; border-radius: .5rem; background: rgba(0, 0, 0, .3); }
.token-box pre { white-space: pre-wrap; word-break: break-all; }
.auth-alt { margin-top: 1.5rem; opacity: .8; }