/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #FFFFFF;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 500;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
    line-height: 1.6;
}

/* Color Variables */
:root {
    --primary-color: #4F46E5; /* 藍色 - Indigo */
    --secondary-color: #EAB308; /* 山吹色 - Golden Yellow */
    --tertiary-color: #FAFAFA; /* 生成り - Off-white */
    --accent-color: #F97316; /* Orange */
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --error-color: #EF4444;
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --border-color: #E5E7EB;
    --bg-light: #F9FAFB;
}

/* Header */
.header {
    background: white;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-name {
    display: flex;
    flex-direction: column;
}

.brand-main {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.brand-sub {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1;
}

.cta-button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.cta-button:hover {
    background: #3B37C9;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--tertiary-color) 0%, #F3F4F6 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.highlight {
    color: var(--primary-color);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-cta {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 8px;
    font-size: 1.125rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.hero-cta:hover {
    background: #3B37C9;
}

/* Placeholder Images */
.placeholder-image {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    border-radius: 12px;
    min-height: 300px;
    border: 2px dashed var(--border-color);
}

.placeholder-image.large {
    min-height: 400px;
}

/* Section Styles */
section {
    padding: 80px 0;
    text-align: center;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 3rem;
}

/* Features Section */
.features {
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    margin-bottom: 24px;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* How It Works Section */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.step {
    text-align: center;
    padding: 30px 20px;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 24px;
}

.step h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.step p {
    color: var(--text-secondary);
}

/* Products Section */
.products {
    background: var(--bg-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.product-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.product-image {
    padding: 20px;
}

.product-image .placeholder-image {
    min-height: 200px;
}

.product-info {
    padding: 0 30px 30px;
}

.product-info h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.product-info p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.product-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.product-button {
    width: 100%;
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 12px;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.product-button:hover {
    background: #3B37C9;
}

/* Target Customers Section */
.customers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.customer-card {
    text-align: center;
    padding: 40px 30px;
    border: 2px solid var(--border-color);
    border-radius: 16px;
    transition: border-color 0.3s ease, transform 0.3s ease;
}

.customer-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-3px);
}

.customer-icon {
    margin-bottom: 24px;
}

.customer-card h3 {
    color: var(--text-primary);
    margin-bottom: 16px;
}

.customer-card p {
    color: var(--text-secondary);
}

/* Quality Section */
.quality {
    background: var(--bg-light);
}

.quality-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.quality-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.quality-features {
    list-style: none;
}

.quality-features li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.quality-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: 700;
}

/* Materials Section */
.materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.material-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    border-left: 4px solid var(--secondary-color);
}

.material-card h3 {
    color: var(--text-primary);
    margin-bottom: 12px;
}

.material-card p {
    color: var(--text-secondary);
}

/* Contact Section */
.contact {
    background: var(--bg-light);
    text-align: left;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 60px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 30px;
}

.contact-icon {
    background: var(--tertiary-color);
    padding: 12px;
    border-radius: 8px;
    flex-shrink: 0;
}

.contact-item h3 {
    font-size: 1.125rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.contact-item p {
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.contact-hours {
    font-size: 0.875rem;
    color: var(--text-secondary) !important;
}

.contact-form {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.contact-form h3 {
    margin-bottom: 24px;
    color: var(--text-primary);
}

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

.form input,
.form textarea,
.form select {
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form input:focus,
.form textarea:focus,
.form select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 16px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.form button:hover {
    background: #3B37C9;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-section h4 {
    margin-bottom: 20px;
    color: white;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section ul li a {
    color: #D1D5DB;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: white;
}

.footer-description {
    color: #D1D5DB;
    line-height: 1.6;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    color: #9CA3AF;
    margin: 0;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 40px;
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    position: relative;
}

.close {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 28px;
    font-weight: bold;
    color: var(--text-secondary);
    cursor: pointer;
}

.close:hover {
    color: var(--text-primary);
}

.order-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 20px;
}

.order-form input,
.order-form textarea,
.order-form select {
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
}

.order-form button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 16px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-main-image {
        height: 300px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .quality-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .quality-main-image {
        height: 300px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
    
    .features-grid,
    .products-grid,
    .customers-grid,
    .materials-grid {
        grid-template-columns: 1fr;
    }
    
    .steps {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .container {
        padding: 0 15px;
    }
    
    section {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 80px 0 60px;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-main-image {
        height: 250px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .modal-content {
        margin: 10% auto;
        padding: 30px;
        width: 95%;
    }
}