/* 栄養成分計算セクション */
.nutrition-calculator-section {
    padding: 80px 0 10px 0;
    background: linear-gradient(135deg, #fff8f0 0%, #f0f8ff 100%);
    position: relative;
    overflow: hidden;
}

.nutrition-calculator-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%23e8f4f8" opacity="0.3"/><circle cx="75" cy="75" r="1" fill="%23f0e8d8" opacity="0.3"/><circle cx="50" cy="10" r="0.5" fill="%23d8e8f0" opacity="0.2"/><circle cx="10" cy="60" r="0.5" fill="%23e8d8f0" opacity="0.2"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
    opacity: 0.1;
    pointer-events: none;
}

.nutrition-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    z-index: 1;
}

.nutrition-title {
    font-size: 3.2rem;
    color: #2c3e50;
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: relative;
}

.nutrition-title::after {
    content: '🦌';
    position: absolute;
    right: -50px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2rem;
    opacity: 0.3;
}

.nutrition-subtitle {
    font-size: 1.6rem;
    color: #5a6c7d;
    line-height: 1.8;
    max-width: 700px;
    margin: 0 auto;
    font-weight: 400;
}

.nutrition-calculator {
    max-width: 1000px;
    margin: 0 auto;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 1;
}

.calculator-form {
    padding: 50px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e3f2fd 100%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
}

.calculator-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #8B4513 0%, #A0522D 50%, #8B4513 100%);
}

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

.form-group label {
    display: block;
    font-size: 1.4rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 12px;
    position: relative;
    padding-left: 25px;
}

.form-group label::before {
    content: '🍖';
    position: absolute;
    left: 0;
    top: 0;
    font-size: 1.2rem;
}

.form-group select,
.form-group input {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid #e1e8ed;
    border-radius: 12px;
    font-size: 1.4rem;
    transition: all 0.3s ease;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.form-group select:focus,
.form-group input:focus {
    outline: none;
    border-color: #8B4513;
    box-shadow: 0 0 0 4px rgba(139, 69, 19, 0.1);
    transform: translateY(-1px);
}

.calculate-btn {
    width: 100%;
    padding: 20px 24px;
    background: linear-gradient(135deg, #8B4513 0%, #A0522D 100%);
    color: #fff;
    border: none;
    border-radius: 15px;
    font-size: 1.6rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 30px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(139, 69, 19, 0.2);
}

.calculate-btn::before {
    content: '🧮';
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.4rem;
}

.calculate-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(139, 69, 19, 0.4);
    background: linear-gradient(135deg, #A0522D 0%, #8B4513 100%);
}

.calculate-btn:disabled {
    background: linear-gradient(135deg, #ccc 0%, #bbb 100%);
    cursor: not-allowed;
    transform: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nutrition-results {
    padding: 50px;
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
}

.results-title {
    font-size: 2.4rem;
    color: #2c3e50;
    margin-bottom: 40px;
    text-align: center;
    font-weight: 700;
    position: relative;
}

.results-title::after {
    content: '📊';
    position: absolute;
    right: -40px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.8rem;
    opacity: 0.3;
}

.nutrition-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.nutrition-item {
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
    padding: 25px 20px;
    border-radius: 15px;
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.nutrition-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #8B4513 0%, #A0522D 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.nutrition-item:hover {
    border-color: #8B4513;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(139, 69, 19, 0.15);
}

.nutrition-item:hover::before {
    opacity: 1;
}

.nutrition-label {
    display: block;
    font-size: 1.3rem;
    color: #5a6c7d;
    margin-bottom: 12px;
    font-weight: 600;
}

.nutrition-value {
    display: block;
    font-size: 2.6rem;
    font-weight: 800;
    color: #8B4513;
    margin-bottom: 6px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.nutrition-unit {
    font-size: 1.3rem;
    color: #8B4513;
    font-weight: 500;
    opacity: 0.8;
}

.daily-values {
    background: linear-gradient(135deg, #f8f9fa 0%, #e3f2fd 100%);
    padding: 40px;
    border-radius: 15px;
    margin-bottom: 40px;
    border: 1px solid rgba(139, 69, 19, 0.1);
    position: relative;
}

.daily-values::before {
    content: '📈';
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 2rem;
    opacity: 0.2;
}

.daily-title {
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 30px;
    text-align: center;
    font-weight: 700;
    position: relative;
}

.daily-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.daily-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.daily-label {
    font-size: 1.4rem;
    color: #333;
    font-weight: 500;
    min-width: 80px;
}

.daily-bar {
    flex: 1;
    height: 20px;
    background: #e9ecef;
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.daily-fill {
    height: 100%;
    background: linear-gradient(90deg, #8B4513 0%, #A0522D 100%);
    border-radius: 10px;
    transition: width 0.8s ease;
    width: 0%;
}

.daily-percent {
    font-size: 1.4rem;
    font-weight: 600;
    color: #8B4513;
    min-width: 50px;
    text-align: right;
}

.health-benefits {
    background: linear-gradient(135deg, #8B4513 0%, #A0522D 100%);
    color: #fff;
    padding: 40px;
    border-radius: 15px;
    position: relative;
    overflow: hidden;
}

.health-benefits::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.benefits-title {
    font-size: 2.2rem;
    margin-bottom: 25px;
    text-align: center;
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.benefits-list {
    list-style: none;
    padding: 0;
    margin: 0;
    position: relative;
    z-index: 1;
}

.benefits-list li {
    font-size: 1.5rem;
    line-height: 1.8;
    margin-bottom: 15px;
    padding-left: 30px;
    position: relative;
    font-weight: 500;
}

.benefits-list li::before {
    content: "✨";
    position: absolute;
    left: 0;
    top: 0;
    color: #fff;
    font-weight: bold;
    font-size: 1.4rem;
    animation: sparkle 2s ease-in-out infinite;
}

@keyframes sparkle {
    0%, 100% { transform: scale(1) rotate(0deg); opacity: 1; }
    50% { transform: scale(1.2) rotate(180deg); opacity: 0.8; }
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .nutrition-calculator-section {
        padding: 60px 0 10px 0;
    }
    
    .nutrition-title {
        font-size: 2.6rem;
    }
    
    .nutrition-subtitle {
        font-size: 1.4rem;
    }
    
    .calculator-form {
        padding: 30px 20px;
    }
    
    .nutrition-results {
        padding: 30px 20px;
    }
    
    .nutrition-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 15px;
    }
    
    .nutrition-item {
        padding: 15px;
    }
    
    .nutrition-value {
        font-size: 2rem;
    }
    
    .daily-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .daily-item {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    
    .daily-label {
        min-width: auto;
        text-align: center;
    }
    
    .daily-percent {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .nutrition-calculator-section {
        padding: 40px 0 10px 0;
    }
    
    .nutrition-title {
        font-size: 2.2rem;
    }
    
    .nutrition-subtitle {
        font-size: 1.2rem;
    }
    
    .calculator-form {
        padding: 20px 15px;
    }
    
    .nutrition-results {
        padding: 20px 15px;
    }
    
    .nutrition-grid {
        grid-template-columns: 1fr;
    }
    
    .nutrition-value {
        font-size: 1.8rem;
    }
}