/* Stili per la pagina di login genitori */

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    padding: 40px;
    width: 100%;
    max-width: 400px;
    margin: 20px;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    margin: 0 0 10px 0;
    font-size: 2em;
    color: #333;
    font-weight: 700;
}

.login-header .subtitle {
    color: #666;
    font-size: 1.1em;
    margin: 0;
}

.login-form {
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s ease;
    box-sizing: border-box;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.login-btn {
    width: 100%;
    padding: 14px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.login-btn:active {
    transform: translateY(0);
}

.loading {
    display: none;
    text-align: center;
    margin: 20px 0;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error-message {
    display: none;
    background: #fee;
    color: #c33;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    border: 1px solid #fcc;
}

.success-message {
    display: none;
    background: #efe;
    color: #3c3;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    border: 1px solid #cfc;
}

.back-link {
    text-align: center;
    margin-top: 20px;
}

.back-link a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.back-link a:hover {
    color: #5a67d8;
}

/* Responsive */
@media (max-width: 480px) {
    .login-container {
        margin: 10px;
        padding: 30px 20px;
    }
    
    .login-header h1 {
        font-size: 1.8em;
    }
}