:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --text-color: #333;
    --light-color: #f5f5f5;
    --accent-color: #e74c3c;
    --border-radius: 10px;
    --box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.container {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.auth-form {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 2rem;
    text-align: center;
}

h1 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.success-message, .alert.success {
    background-color: #d4edda;
    color: #155724;
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    text-align: left;
}

.error-message, .alert.error {
    background-color: #f8d7da;
    color: #721c24;
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    text-align: left;
}

.error-message ul, .alert.error ul {
    margin-left: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: var(--secondary-color);
}

textarea[type="address"] {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: border-color 0.3s;
}

textarea[type="address"]:focus {
    border-color: var(--primary-color);
    outline: none;
}

input[type="address"],
input[type="tel"],
input[type="text"],
input[type="email"],
input[type="url"],
input[type="password"] {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: border-color 0.3s;
}

input[type="address"]:focus,
input[type="tel"]:focus,    
input[type="text"]:focus,
input[type="email"]:focus,
input[type="url"]:focus,
input[type="password"]:focus {
    border-color: var(--primary-color);
    outline: none;
}

.gdpr-consent {
    display: flex;
    align-items: flex-start;
}

.gdpr-consent input[type="checkbox"] {
    margin-right: 0.5rem;
    margin-top: 0.3rem;
}

.gdpr-consent label {
    font-weight: normal;
}

button[type="submit"], .btn-primary, .btn.primary {
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 0.8rem 2rem;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.3s;
    width: 100%;
    margin-top: 1rem;
}

button[type="submit"]:hover, .btn-primary:hover, .btn.primary:hover {
    background-color: #c0392b;
    transform: translateY(-3px);
}

.auth-links {
    margin-top: 1.5rem;
}

.auth-links a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s;
}

.auth-links a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* Modal per la Privacy Policy */
.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.4);
}

.modal-content {
    background-color: white;
    margin: 10% auto;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    width: 80%;
    max-width: 800px;
    max-height: 80vh;
    overflow-y: auto;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: black;
}

.privacy-content {
    text-align: left;
    margin-top: 1.5rem;
}

.privacy-content h3 {
    margin-top: 1.5rem;
    color: var(--secondary-color);
}

.privacy-content ul {
    margin-left: 1.5rem;
    margin-top: 0.5rem;
}

@media (max-width: 768px) {
    .auth-form {
        padding: 1.5rem;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    .modal-content {
        width: 90%;
        margin: 15% auto;
    }
}

@media (max-width: 480px) {
    body {
        padding: 1rem;
    }
    
    .auth-form {
        padding: 1rem;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    button[type="submit"], .btn-primary, .btn.primary {
        padding: 0.7rem 1.5rem;
    }
}