/* 계산기 공통 스타일 */

.calculator-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.input-section, .result-section {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.input-section h3, .result-section h3 {
    color: #333;
    margin-bottom: 2rem;
    font-size: 1.5rem;
    text-align: center;
    border-bottom: 2px solid #667eea;
    padding-bottom: 1rem;
}

.input-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #333;
}

.input-group input[type="number"], .input-group select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.input-group input[type="number"]:focus, .input-group select:focus {
    outline: none;
    border-color: #667eea;
}

.currency {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
    font-weight: 600;
    margin-top: 1.25rem;
}

.unit {
    color: #666;
    font-weight: 600;
    margin-left: 8px;
}

.fee-type-selector {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.fee-type-selector select {
    width: 80px;
    flex-shrink: 0;
}

.fee-type-selector input {
    flex: 1;
}

.fee-unit {
    color: #666;
    font-weight: 600;
    min-width: 20px;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.result-item:last-of-type {
    border-bottom: none;
}

.result-label {
    font-weight: 600;
    color: #333;
}

.result-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: #667eea;
}

.result-description {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 1rem;
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: #666;
    text-align: center;
}

.warning-message {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 8px;
    padding: 1rem;
    margin-top: 1rem;
    color: #856404;
    text-align: center;
}

.sales-simulation {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #f0f0f0;
}

.sales-simulation h4 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.simulation-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.simulation-controls label {
    font-weight: 600;
    color: #333;
}

.simulation-controls input {
    width: 100px;
    padding: 0.5rem;
    border: 2px solid #e1e5e9;
    border-radius: 6px;
    font-size: 0.9rem;
}

.simulation-controls input:focus {
    outline: none;
    border-color: #667eea;
}

.simulation-results {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 1rem;
}

.simulation-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
}

.simulation-item:not(:last-child) {
    border-bottom: 1px solid #e9ecef;
}

.simulation-item span:last-child {
    font-weight: 600;
    color: #667eea;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .calculator-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .input-section, .result-section {
        padding: 1.5rem;
    }
    
    .fee-type-selector {
        flex-direction: column;
        align-items: stretch;
    }
    
    .fee-type-selector select {
        width: 100%;
    }
    
    .simulation-controls {
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
    }
    
    .simulation-controls input {
        width: 100%;
    }
}