body {
    background: linear-gradient(135deg, #003366, #006699);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.login-box {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 400px;
}

.btn-primary {
    background-color: #003366;
    border-color: #003366;
}

.btn-primary:hover {
    background-color: #002244;
    border-color: #002244;
}