* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f5f5;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 40px;
}

.header {
    text-align: center;
    margin-bottom: 30px;
    border-bottom: 2px solid #007bff;
    padding-bottom: 20px;
}

h1 {
    color: #333;
    margin-bottom: 10px;
}

.subtitle {
    color: #666;
    font-size: 16px;
}

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

label {
    display: block;
    margin-bottom: 5px;
    color: #333;
    font-weight: 500;
}

.required {
    color: #e74c3c;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.3s;
}

input:focus,
select:focus {
    outline: none;
    border-color: #007bff;
}

.error {
    color: #e74c3c;
    font-size: 14px;
    margin-top: 5px;
    display: none;
}

.row {
    display: flex;
    gap: 20px;
}

.col {
    flex: 1;
}

.radio-group {
    display: flex;
    gap: 20px;
    margin-top: 5px;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 8px;
}

input[type="radio"] {
    width: auto;
}

.privacy-section {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 4px;
    margin: 30px 0;
    border-left: 4px solid #007bff;
}

.regolamento-section {
    background: #fff9c4;
    padding: 20px;
    border-radius: 4px;
    margin: 30px 0;
    border-left: 4px solid #ffc107;
}

.privacy-title, .regolamento-title {
    font-weight: bold;
    margin-bottom: 10px;
    color: #333;
}

.checkbox-group {
    margin: 15px 0;
}

.checkbox-option {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 15px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 4px;
    border: 1px solid transparent;
    transition: all 0.3s ease;
}

.checkbox-option:hover {
    background: rgba(0, 123, 255, 0.05);
    border-color: #007bff;
}

.checkbox-option.required {
    background: rgba(231, 76, 60, 0.05);
    border-color: rgba(231, 76, 60, 0.2);
}

input[type="checkbox"] {
    width: auto;
    margin-top: 2px;
    transform: scale(1.2);
}

.checkbox-label {
    font-size: 14px;
    line-height: 1.4;
    color: #333;
}

.checkbox-label small {
    display: block;
    color: #666;
    font-style: italic;
    margin-top: 5px;
}

.submit-btn {
    background: #007bff;
    color: white;
    padding: 15px 40px;
    border: none;
    border-radius: 4px;
    font-size: 18px;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.3s;
}

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

.submit-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.info-text {
    font-size: 14px;
    color: #666;
    margin-top: 5px;
}

.success-message {
    background: #d4edda;
    color: #155724;
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
    display: none;
}

.error-message {
    background: #f8d7da;
    color: #721c24;
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
    display: none;
}

/* Responsive design */
@media (max-width: 768px) {
    .row {
        flex-direction: column;
        gap: 0;
    }
    
    .container {
        padding: 20px;
    }
    
    .radio-group {
        flex-direction: column;
        gap: 10px;
    }
}