.lsfc-calculator {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background: #f9f9f9;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.lsfc-calculator h2 {
    color: #333;
    text-align: center;
    margin-bottom: 10px;
}

.lsfc-calculator p {
    text-align: center;
    color: #666;
    margin-bottom: 30px;
}

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

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

.form-row .form-group {
    flex: 1;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #333;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #007cba;
    box-shadow: 0 0 5px rgba(0,124,186,0.3);
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    font-weight: normal;
    margin-bottom: 0;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-right: 8px;
}

.form-footer {
    text-align: center;
    margin-top: 30px;
}

.form-footer button {
    background: #007cba;
    color: white;
    padding: 15px 30px;
    border: none;
    border-radius: 4px;
    font-size: 18px;
    cursor: pointer;
    transition: background 0.3s;
}

.form-footer button:hover {
    background: #005a87;
}

.form-footer button:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.disclaimer {
    font-size: 12px;
    color: #666;
    margin-top: 10px;
}

.form-message {
    margin-top: 20px;
    padding: 15px;
    border-radius: 4px;
    text-align: center;
    font-weight: bold;
}

.form-message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

@media (max-width: 768px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .checkbox-group {
        flex-direction: column;
        gap: 10px;
    }
}