/* About ページ専用スタイル */

/* Hero Section */
.hero-section {
    height: 40vh;
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), 
                url('../images/top_about.jpg');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
}

.hero-content {
    max-width: 600px;
    padding: 0 20px;
}

.hero-title {
    font-size: 48px;
    font-weight: 900;
    margin-bottom: 16px;
}

.hero-description {
    font-size: 20px;
    color: #e5e7eb;
}

/* Introduction Section */
.intro-section {
    background-color: white;
}

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

.intro-text .section-title {
    text-align: left;
    margin-bottom: 32px;
}

.intro-description {
    font-size: 18px;
    line-height: 1.8;
    color: #4b5563;
    margin-bottom: 24px;
}

.intro-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* Technology Section */
.technology-section {
    background-color: #f9fafb;
}

.technology-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.tech-card {
    background-color: white;
    padding: 32px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tech-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.tech-icon {
    width: 80px;
    height: 80px;
    background-color: #dbeafe;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 32px;
    color: #3b82f6;
}

.tech-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 16px;
}

.tech-card p {
    color: #6b7280;
    line-height: 1.7;
}

/* Process Section */
.process-section {
    background-color: white;
}

.process-timeline {
    display: flex;
    flex-direction: column;
    gap: 32px;
    max-width: 800px;
    margin: 0 auto;
}

.process-step {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    padding: 24px;
    background-color: #f9fafb;
    border-radius: 12px;
    border-left: 4px solid #3b82f6;
}

.step-number {
    width: 48px;
    height: 48px;
    background-color: #3b82f6;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 8px;
}

.step-content p {
    color: #6b7280;
    line-height: 1.7;
}

/* Benefits Section */
.benefits-section {
    background-color: #f9fafb;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.benefit-item {
    background-color: white;
    padding: 32px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.benefit-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.benefit-icon {
    width: 64px;
    height: 64px;
    background-color: #dbeafe;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 24px;
    color: #3b82f6;
}

.benefit-item h3 {
    font-size: 18px;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 12px;
}

.benefit-item p {
    color: #6b7280;
    line-height: 1.6;
}

/* Wallpaper Section */
.wallpaper-section {
    background-color: white;
}

.wallpaper-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.wallpaper-card {
    position: relative;
    padding: 24px;
    border-radius: 12px;
    text-align: center;
    border: 2px solid;
}

.wallpaper-card.suitable {
    background-color: #f0fdf4;
    border-color: #bbf7d0;
}

.wallpaper-card.caution {
    background-color: #fffbeb;
    border-color: #fed7aa;
}

.wallpaper-card.unsuitable {
    background-color: #fef2f2;
    border-color: #fecaca;
}

.compatibility-badge {
    position: absolute;
    top: -12px;
    right: 16px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    color: white;
}

.compatibility-badge.excellent {
    background-color: #10b981;
}

.compatibility-badge.good {
    background-color: #3b82f6;
}

.compatibility-badge.caution {
    background-color: #f59e0b;
}

.compatibility-badge.unsuitable {
    background-color: #ef4444;
}

.wallpaper-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}

.wallpaper-card.suitable h3 {
    color: #065f46;
}

.wallpaper-card.caution h3 {
    color: #92400e;
}

.wallpaper-card.unsuitable h3 {
    color: #991b1b;
}

.wallpaper-card p {
    font-size: 14px;
    line-height: 1.6;
    color: #6b7280;
}

/* Quality Section */
.quality-section {
    background-color: #f9fafb;
}

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

.quality-text .section-title {
    text-align: left;
    margin-bottom: 32px;
}

.quality-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.quality-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.quality-item i {
    width: 48px;
    height: 48px;
    background-color: #dbeafe;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #3b82f6;
    flex-shrink: 0;
}

.quality-item h3 {
    font-size: 18px;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 8px;
}

.quality-item p {
    color: #6b7280;
    line-height: 1.6;
}

.quality-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* CTA Section */
.cta-section {
    background-color: #3b82f6;
    color: white;
    text-align: center;
}

.cta-title {
    font-size: 48px;
    font-weight: 900;
    margin-bottom: 24px;
}

.cta-description {
    font-size: 20px;
    color: #bfdbfe;
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* レスポンシブ */
@media (max-width: 768px) {
    .hero-title {
        font-size: 32px;
    }
    
    .intro-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .intro-content .intro-image {
        order: -1;
    }
    
    .technology-grid {
        grid-template-columns: 1fr;
    }
    
    .process-step {
        flex-direction: column;
        text-align: center;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .wallpaper-grid {
        grid-template-columns: 1fr;
    }
    
    .quality-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .quality-content .quality-image {
        order: -1;
    }
    
    .cta-title {
        font-size: 32px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}