.login-container {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #0f172a, #1e293b);
}

.login-card {
    background: #fff;
    padding: 40px;
    border-radius: 12px;
    width: 350px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}