/*
 * Art・Value トップページスタイル
 */

/* ヒーローセクション - よりプロフェッショナルに */
.hero {
    background: var(--bg-gradient);
    color: white;
    padding: 200px 32px 180px;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-top: 73px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(255,255,255,0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255,255,255,0.08) 0%, transparent 50%);
    opacity: 1;
}

.hero-content {
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero h1 {
    font-size: 3.75rem;
    margin-bottom: 32px;
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.2;
    text-shadow: 0 2px 16px rgba(0,0,0,0.1);
}

.hero .tagline {
    font-size: 1.5rem;
    margin-bottom: 28px;
    font-weight: 500;
    opacity: 0.95;
    letter-spacing: 0.02em;
}

.hero .subtitle {
    font-size: 1.125rem;
    margin-bottom: 56px;
    opacity: 0.9;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.75;
    font-weight: 400;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-button {
    background: white;
    color: var(--primary-color);
    padding: 18px 48px;
    font-size: 1.0625rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    transition: var(--transition);
    letter-spacing: 0.01em;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

.cta-button.secondary {
    background: rgba(255,255,255,0.15);
    color: white;
    border: 2px solid rgba(255,255,255,0.8);
}

.cta-button.secondary:hover {
    background: rgba(255,255,255,0.25);
    border-color: white;
}

/* 統計セクション */
.stats {
    background: white;
    padding: 80px 32px;
    margin-top: -80px;
    position: relative;
    z-index: 10;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 48px;
    max-width: 1100px;
    margin: 0 auto;
    background: white;
    padding: 64px 56px;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3.25rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.stat-label {
    color: var(--text-medium);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.01em;
}

/* セクション共通 */
.section {
    padding: 120px 32px;
}

.section-alt {
    background: var(--bg-light);
}

.section-title {
    font-size: 2.75rem;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 20px;
    font-weight: 800;
    position: relative;
    letter-spacing: -0.03em;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.2em;
    margin-bottom: 70px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* サービス */
.services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 32px;
    margin: 60px 0;
}

.service-card {
    background: white;
    padding: 48px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-slow);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--bg-gradient);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.service-icon {
    font-size: 3.5rem;
    margin-bottom: 24px;
    display: inline-block;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    transform: scale(1.05);
}

.service-card h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 16px;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.service-card p {
    color: var(--text-medium);
    font-size: 0.9375rem;
    line-height: 1.75;
    margin-bottom: 24px;
}

.service-card ul {
    list-style: none;
    padding: 0;
}

.service-card li {
    padding: 10px 0;
    padding-left: 28px;
    position: relative;
    color: var(--text-medium);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.service-card li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.2em;
}

/* 比較カード */
.comparison-card {
    background: white;
    padding: 48px 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-slow);
    border: 1px solid var(--border-light);
}

.comparison-card.old-way {
    border-left: 4px solid #ef4444;
}

.comparison-card.new-way {
    border-left: 4px solid #10b981;
}

.comparison-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.comparison-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
    text-align: center;
}

.comparison-card h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 32px;
    font-weight: 700;
    text-align: center;
    letter-spacing: -0.01em;
}

.comparison-list {
    list-style: none;
    padding: 0;
}

.comparison-list li {
    margin-bottom: 24px;
    padding: 20px 24px;
    background: var(--bg-light);
    border-radius: 8px;
}

.comparison-list strong {
    display: block;
    color: var(--text-dark);
    font-size: 1rem;
    margin-bottom: 8px;
    font-weight: 600;
}

.comparison-list p {
    color: var(--text-medium);
    line-height: 1.7;
    margin: 0;
    font-size: 0.9375rem;
}

/* 強み */
.strengths {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin: 60px 0;
}

.strength-item {
    text-align: center;
    padding: 48px 36px;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-slow);
    border: 1px solid var(--border-light);
}

.strength-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.strength-number {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.strength-item h3 {
    font-size: 1.25rem;
    color: var(--text-dark);
    margin-bottom: 16px;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.strength-item p {
    color: var(--text-medium);
    font-size: 0.9375rem;
    line-height: 1.75;
}

/* 実績 */
.products {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
    gap: 32px;
    margin: 60px 0;
}

.product-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-slow);
    border: 1px solid var(--border-light);
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.product-image {
    height: 280px;
    background: var(--bg-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6em;
    position: relative;
    overflow: hidden;
}

.product-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
}

.product-content {
    padding: 40px;
}

.product-content h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 16px;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.product-content p {
    color: var(--text-medium);
    font-size: 0.9375rem;
    line-height: 1.75;
    margin-bottom: 20px;
}

.product-tag {
    display: inline-block;
    background: var(--bg-light);
    color: var(--primary-color);
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    margin: 4px 4px 4px 0;
}

.product-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9375rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    transition: var(--transition);
}

.product-link:hover {
    gap: 10px;
}

/* お客様の声 */
.testimonials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 32px;
    margin: 60px 0;
}

.testimonial-card {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    position: relative;
    transition: var(--transition-slow);
    border: 1px solid var(--border-light);
}

.testimonial-card::before {
    content: '"';
    font-size: 5em;
    color: var(--primary-color);
    opacity: 0.08;
    position: absolute;
    top: 20px;
    left: 30px;
    font-family: serif;
    line-height: 1;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.testimonial-text {
    color: var(--text-medium);
    font-size: 0.9375rem;
    line-height: 1.8;
    margin-bottom: 28px;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--bg-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5em;
    font-weight: 700;
}

.author-info h4 {
    color: var(--text-dark);
    font-weight: 700;
    margin-bottom: 5px;
}

.author-info p {
    color: var(--text-light);
    font-size: 0.95em;
}

/* FAQ */
.faq-list {
    max-width: 900px;
    margin: 60px auto;
}

.faq-item {
    background: white;
    border-radius: 15px;
    margin-bottom: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 700;
    font-size: 1.15em;
    color: var(--text-dark);
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--primary-color);
}

.faq-question::after {
    content: '+';
    font-size: 1.5em;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer-content {
    padding: 0 30px 25px;
    color: var(--text-light);
    line-height: 1.8;
}

/* お問い合わせ */
.contact-box {
    background: var(--bg-gradient);
    color: white;
    padding: 80px 50px;
    border-radius: 25px;
    max-width: 900px;
    margin: 0 auto;
    box-shadow: var(--shadow-lg);
}

.contact-box h2 {
    font-size: 3em;
    margin-bottom: 20px;
    font-weight: 900;
    text-align: center;
}

.contact-box > p {
    font-size: 1.3em;
    margin-bottom: 50px;
    text-align: center;
    opacity: 0.95;
}

/* レスポンシブ */
@media (max-width: 968px) {
    .hero h1 {
        font-size: 3em;
    }

    .hero .tagline {
        font-size: 1.5em;
    }

    .section-title {
        font-size: 2.5em;
    }

    .services,
    .products {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 140px 20px 120px;
    }

    .hero h1 {
        font-size: 2.2em;
    }

    .hero .tagline {
        font-size: 1.2em;
    }

    .hero .subtitle {
        font-size: 1.1em;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .cta-button {
        width: 100%;
    }

    .section {
        padding: 80px 20px;
    }

    .section-title {
        font-size: 2em;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        padding: 30px;
    }

    .contact-box {
        padding: 50px 30px;
    }

    .contact-box h2 {
        font-size: 2em;
    }
}