body { background: #f4f6fb; }
.login-card {
    max-width: 420px;
    margin: 8vh auto 0;
    border: none;
    box-shadow: 0 4px 24px rgba(0,0,0,.10);
}
.login-logo { height: 40px; }
.card-header-tkw {
    background: #1a2b4a;
    padding: 1.5rem;
    text-align: center;
}