body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background: #f3f4f6;
    font-family: Arial, sans-serif;
    overflow: hidden;
}

/* Video di background */
.video-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.video-background video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Card di login */
.login-card {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    position: relative;
    z-index: 1;
    box-sizing: border-box;
}

/* Logo */
.login-card img {
    width: 150px;
    margin-bottom: 20px;
}

.login-card h4 {
    margin-bottom: 10px;
    font-size: 24px;
    color: #333;
}

/* Gruppo di form */
.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 15px;
    text-align: left;
}

.form-group label {
    font-size: 14px;
    color: #333;
    margin-bottom: 5px;
}

.form-control {
    padding: 10px;
    font-size: 14px;
    border-radius: 5px;
    border: 1px solid #ddd;
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 10px;
}

/* Pulsante di accesso */
.btn-primary {
    background: #007bff;
    border: none;
    width: 100%;
    padding: 10px;
    border-radius: 5px;
    font-size: 16px;
    color: #fff;
    cursor: pointer;
    transition: background 0.3s ease;
}

.btn-primary:hover {
    background: #0056b3;
}

/* Mostra/Nascondi password */
.mostra-password {
    cursor: pointer;
    font-size: 13px;
    color: #007bff;
    position: absolute;
    right: 20px;
    top: 35px;
}

/* Footer */
.footer {
    margin-top: 10px;
    font-size: 12px;
    color: #aaa;
}

/* Responsività per dispositivi mobili */
@media (max-width: 768px) {
    .login-card {
        padding: 1.5rem;
        max-width: 90%;
    }

    .login-card img {
        width: 120px;
        margin-bottom: 15px;
    }

    .login-card h4 {
        font-size: 20px;
    }

    .form-control {
        font-size: 13px;
        padding: 8px;
    }

    .btn-primary {
        font-size: 14px;
        padding: 8px;
    }
}

@media (max-width: 576px) {
    .login-card {
        padding: 1rem;
        max-width: 95%;
    }

    .login-card img {
        width: 100px;
    }

    .login-card h4 {
        font-size: 18px;
    }

    .form-control {
        font-size: 12px;
        padding: 7px;
    }

    .btn-primary {
        font-size: 13px;
        padding: 7px;
    }
}