body {
    background-color: #f8f9fa;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}
.login-card {
    background: #fff;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
    width: 350px;
    text-align: center;
}
.login-card img {
    width: 80px;
    height: 80px;
    margin-bottom: 1rem;
}
.form-control {
    margin-bottom: 1rem;
}
.btn-login {
    width: 100%;
}