body.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e3a5f 0%, #2d5a87 50%, #1e3a5f 100%);
}
.login-box { width: 100%; max-width: 420px; padding: 15px; }
.login-card-body { border-radius: 12px; }