/* リセットとベース設定 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

/* ヘッダー */
.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

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

.logo-image {
    width: 50px;
    height: 50px;
}

.logo-text h1 {
    font-size: 24px;
    font-weight: 700;
    color: #1a4d7e;
    margin-bottom: 2px;
}

.logo-subtitle {
    font-size: 12px;
    color: #666;
    font-weight: 400;
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: #1a4d7e;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #1a4d7e;
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

/* ヒーローセクション */
.hero {
    height: 100vh;
    background: url('tech-bg.svg') center/cover no-repeat;
    position: relative;
    display: flex;
    align-items: center;
    margin-top: 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: url('tech-bg.svg') center/cover no-repeat;
    animation: slowMove 30s linear infinite;
    z-index: 1;
}

.hero-overlay {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(10, 22, 40, 0.6) 0%, rgba(30, 58, 95, 0.5) 100%);
    position: relative;
    z-index: 2;
}

@keyframes slowMove {
    0% {
        transform: translate(0, 0) scale(1.1);
    }
    25% {
        transform: translate(-5%, -5%) scale(1.15);
    }
    50% {
        transform: translate(-10%, 0) scale(1.1);
    }
    75% {
        transform: translate(-5%, 5%) scale(1.15);
    }
    100% {
        transform: translate(0, 0) scale(1.1);
    }
}

.hero-content {
    text-align: center;
    color: white;
    animation: fadeInUp 1s ease;
    position: relative;
    z-index: 3;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.3;
    text-shadow: 3px 3px 6px rgba(0,0,0,0.7), 0 0 20px rgba(42, 82, 152, 0.5);
}

.hero-subtitle {
    font-size: 18px;
    margin-bottom: 40px;
    font-weight: 400;
    line-height: 1.8;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
}

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

.btn {
    padding: 15px 40px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-block;
    font-size: 16px;
}

.btn-primary {
    background: white;
    color: #1a4d7e;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

.btn-outline {
    border: 2px solid white;
    color: white;
    background: transparent;
}

.btn-outline:hover {
    background: white;
    color: #1a4d7e;
}

/* スクロールインジケーター */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: white;
}

.scroll-indicator span {
    font-size: 12px;
    letter-spacing: 2px;
    display: block;
    margin-bottom: 10px;
}

.scroll-arrow {
    width: 30px;
    height: 30px;
    border-left: 2px solid white;
    border-bottom: 2px solid white;
    transform: rotate(-45deg);
    margin: 0 auto;
    animation: bounce 2s infinite;
}

/* セクション共通 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: #1a4d7e;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #1e3a5f, #2a5298);
}

.section-subtitle {
    font-size: 16px;
    color: #666;
    margin-top: 20px;
}

/* サービスセクション */
.services {
    padding: 100px 0;
    background: #f8f9fa;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.service-card {
    background: white;
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.service-icon {
    color: #2a5298;
    margin-bottom: 20px;
    display: inline-block;
}

.service-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #1a4d7e;
    font-weight: 600;
}

.service-card p {
    font-size: 14px;
    line-height: 1.8;
    color: #666;
}

/* 商品企画ハイライトセクション */
.product-planning-highlight {
    margin-top: 60px;
    background: linear-gradient(135deg, #1e3a5f 0%, #2a5298 100%);
    border-radius: 15px;
    padding: 50px;
    color: white;
    box-shadow: 0 10px 40px rgba(42, 82, 152, 0.3);
}

.highlight-content {
    text-align: center;
}

.highlight-icon {
    margin-bottom: 30px;
    color: white;
}

.product-planning-highlight h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
}

.product-planning-highlight p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.planning-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.planning-item {
    background: rgba(255, 255, 255, 0.15);
    padding: 20px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.planning-item strong {
    display: block;
    font-size: 18px;
    margin-bottom: 10px;
}

.planning-item span {
    font-size: 14px;
    opacity: 0.9;
    line-height: 1.6;
}

/* 強みセクション */
.strengths {
    padding: 100px 0;
    background: linear-gradient(135deg, #1e3a5f 0%, #2a5298 100%);
    color: white;
}

.strengths .section-title {
    color: white;
}

.strengths .section-title::after {
    background: white;
}

.strengths .section-subtitle {
    color: rgba(255,255,255,0.9);
}

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

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

.strength-number {
    font-size: 48px;
    font-weight: 700;
    opacity: 0.3;
    margin-bottom: 15px;
}

.strength-item h3 {
    font-size: 22px;
    margin-bottom: 15px;
    font-weight: 600;
}

.strength-item p {
    font-size: 15px;
    line-height: 1.8;
    opacity: 0.9;
}

/* 会社概要セクション */
.about {
    padding: 100px 0;
    background: #fff;
}

.company-info {
    max-width: 900px;
    margin: 0 auto;
}

.info-table {
    width: 100%;
    border-collapse: collapse;
}

.info-table th {
    background: #f8f9fa;
    padding: 20px;
    text-align: left;
    font-weight: 600;
    color: #1a4d7e;
    width: 30%;
    border-bottom: 2px solid #e9ecef;
}

.info-table td {
    padding: 20px;
    border-bottom: 1px solid #e9ecef;
    line-height: 1.8;
}

.business-list {
    list-style: none;
    padding-left: 0;
}

.business-list li {
    padding: 5px 0;
    position: relative;
    padding-left: 20px;
}

.business-list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: #2a5298;
}

/* お問い合わせセクション */
.contact {
    padding: 100px 0;
    background: #f8f9fa;
}

.contact-simple {
    max-width: 800px;
    margin: 0 auto;
}

.contact-card {
    background: white;
    border-radius: 15px;
    padding: 60px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
}

.contact-icon {
    color: #2a5298;
    margin-bottom: 30px;
    display: inline-block;
}

.contact-card h3 {
    font-size: 28px;
    color: #1a4d7e;
    margin-bottom: 20px;
    font-weight: 700;
}

.contact-description {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 30px;
}

.contact-email {
    margin: 40px 0;
}

.email-link {
    display: inline-block;
    font-size: 32px;
    color: #2a5298;
    text-decoration: none;
    font-weight: 600;
    padding: 20px 40px;
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.05) 0%, rgba(42, 82, 152, 0.05) 100%);
    border-radius: 10px;
    transition: all 0.3s ease;
    border: 2px solid #2a5298;
}

.email-link:hover {
    background: linear-gradient(135deg, #1e3a5f 0%, #2a5298 100%);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(42, 82, 152, 0.3);
}

.contact-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 50px;
    padding-top: 40px;
    border-top: 1px solid #e9ecef;
}

.detail-item strong {
    display: block;
    font-size: 14px;
    color: #1a4d7e;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.detail-item p {
    color: #666;
    line-height: 1.6;
    font-size: 15px;
}

/* フッター */
.footer {
    background: #1a4d7e;
    color: white;
    padding: 60px 0 20px;
}

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

.footer-logo h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.footer-logo p {
    font-size: 14px;
    opacity: 0.8;
}

.footer h4 {
    font-size: 18px;
    margin-bottom: 20px;
}

.footer ul {
    list-style: none;
}

.footer ul li {
    margin-bottom: 10px;
    opacity: 0.8;
    font-size: 14px;
}

.footer ul a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.footer ul a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 14px;
    opacity: 0.8;
}

/* アニメーション */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) rotate(-45deg);
    }
    40% {
        transform: translateY(-10px) rotate(-45deg);
    }
    60% {
        transform: translateY(-5px) rotate(-45deg);
    }
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 20px;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .service-grid {
        grid-template-columns: 1fr;
    }
    
    .strength-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-card {
        padding: 40px 20px;
    }
    
    .email-link {
        font-size: 24px;
        padding: 15px 20px;
    }
    
    .contact-details {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}