body {
    background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: "Segoe UI", sans-serif;
}
.login-box {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    width: 100%;
    max-width: 400px;
}