.calculator-form {
    margin: 40px 0;
    background-color: #fff;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    padding: 40px;
}

.form-section {
    margin-bottom: 25px;
}

.form-section h4 {
    font-size: 1.2rem;
    color: var(--form-title);
    margin: 0 0 15px 0;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 10px;
}

.step-number {
    color: var(--form-title);
    font-weight: bold;
    font-size: 1rem;
    background-color: var(--bg02);
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid var(--form-title);
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.radio-group label {
    display: flex;
    align-items: center;
    padding: 8px 12px;
    border: 1px solid var(--border02);
    border-radius: 3px;
    background: white;
    color: var(--text01);
    cursor: pointer;
    transition: background-color 0.2s;
}

.radio-group label:hover {
    background-color: var(--bg02);
}

.radio-group input[type="radio"] {
    margin-right: 10px;
    transform: scale(1.2);
    border: 1px solid var(--border02);
    accent-color: var(--radio-selected);
}

.calculation-result {
    margin-top: 20px;
    padding: 20px;
    background: var(--calculation-bg);
    color: var(--calculation-text);
    border-radius: 5px;
    text-align: center;
}

.result-row {
    display: flex;
    justify-content: space-around;
    align-items: center;
    gap: 20px;
}

.result-item {
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.result-tag {
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 1rem;
    font-weight: 500;
    color: white;
    white-space: nowrap;
}

.first-tag {
    background-color: var(--first-tag-bg);
    color: var(--first-tag-text);
}

.subsequent-tag {
    background-color: var(--subsequent-tag-bg);
    color: var(--subsequent-tag-text);
}

.amount {
    font-weight: bold;
    font-size: 1.5rem;
}

.highlight {
    color: var(--amount-text);
    font-size: 1.8rem;
}

/* PC版では横一列表示 */
@media (min-width: 769px) {
    .radio-group {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 15px;
    }
    
    .radio-group label {
        flex: 1;
        min-width: 120px;
        justify-content: center;
        text-align: center;
    }
    
    /* 訪問距離の選択項目は4つあるので、2列×2行に調整 */
    #distance-section .radio-group {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    
    #distance-section .radio-group label {
        flex: none;
        min-width: auto;
    }
}

/* スマホ対応 */
@media (max-width: 768px) {
    .calculator-form {
        padding: 15px;
        margin: 15px 0;
    }
    
    .form-section {
        margin-bottom: 20px;
    }
    
    .form-section h4 {
        font-size: 1.1rem;
        gap: 8px;
    }
    
    .step-number {
        font-size: 0.9rem;
        padding: 3px 6px;
    }
    
    .radio-group label {
        padding: 10px;
        font-size: 0.95rem;
    }
    
    .calculation-result {
        padding: 15px;
    }
    
    .result-row {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .result-item {
        font-size: 1rem;
        gap: 5px;
        flex-direction: column;
        text-align: center;
    }
    
    .result-tag {
        padding: 5px 14px;
        font-size: 0.9rem;
    }
    
    .amount {
        font-size: 1.3rem;
    }
    
    .highlight {
        font-size: 1.6rem;
    }
}