/* VAT Calculator Styles */
.vat-calculator {
    max-width: 600px;
    margin: 40px auto;
    padding: 0 20px;
}

.calculator-container {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 30px;
}

.calculator-title {
    font-size: 1.8rem;
    color: #2d3748;
    text-align: center;
    margin-bottom: 30px;
    font-weight: 600;
}

.input-group {
    margin-bottom: 25px;
}

.input-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: #4a5568;
    margin-bottom: 8px;
    font-weight: 500;
}

.calculator-input {
    width: 100%;
    padding: 12px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

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

.calculator-input[readonly] {
    background-color: #f8fafc;
    cursor: not-allowed;
}

.calculator-controls {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-top: 30px;
}

.calc-btn {
    padding: 12px;
    border: none;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.share-btn {
    background: #667eea;
    color: white;
}

.reset-btn {
    background: #48bb78;
    color: white;
}

.clear-btn {
    background: #f56565;
    color: white;
}

.calculator-feedback {
    margin-top: 35px;
    padding-top: 25px;
    border-top: 1px solid #e2e8f0;
}

.feedback-title {
    text-align: center;
    color: #4a5568;
    margin-bottom: 20px;
    font-weight: 500;
}

.feedback-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.feedback-btn {
    padding: 10px 25px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    background: #fff;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.feedback-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.feedback-count {
    font-size: 0.9rem;
    font-weight: 600;
}

@media (max-width: 480px) {
    .calculator-container {
        padding: 25px;
    }
    
    .calculator-controls {
        grid-template-columns: 1fr;
    }
    
    .feedback-buttons {
        flex-direction: column;
    }
    
    .feedback-btn {
        width: 100%;
        justify-content: center;
    }
}