.login-card{ width:420px; border:none; border-radius:10px; box-shadow:0 10px 30px rgba(0,0,0,0.1); }
.login-header{ text-align:center; font-weight:600; font-size:20px; margin-bottom:20px; }
.btn-login{ width:100%; }
.login-page{
    background:#f5f6f8;
    height:100vh;
    display:flex;
    align-items:center;
    justify-content:center;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial;
}