/* ===================================
   リセット & ベーススタイル
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* ロゴに合わせたカラーパレット */
    --color-primary: #1a4d2e;        /* ダークグリーン */
    --color-secondary: #d4a574;      /* ゴールド */
    --color-accent: #2d5f7c;         /* ネイビーブルー */
    --color-light-green: #4a7c59;    /* ライトグリーン */
    --color-text: #333333;
    --color-text-light: #666666;
    --color-white: #ffffff;
    --color-bg-light: #f8f9fa;
    --color-bg-secondary: #f5f5f5;
    --color-border: #e0e0e0;
    
    /* フォント */
    --font-ja: 'Noto Sans JP', sans-serif;
    --font-en: 'Inter', sans-serif;
    
    /* シャドウ */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    
    /* トランジション */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-ja);
    color: var(--color-text);
    line-height: 1.8;
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

/* ===================================
   ヘッダー
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
}

.logo a {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 55px;
    width: auto;
    transition: var(--transition);
}

.logo-img:hover {
    transform: scale(1.05);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-list a {
    text-decoration: none;
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

.nav-list a:hover {
    color: var(--color-primary);
}

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

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

.lang-btn {
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.lang-btn:hover {
    background: var(--color-light-green);
    transform: translateY(-2px);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-primary);
    cursor: pointer;
}

/* ===================================
   ヒーローセクション
   =================================== */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 80px;
    overflow: hidden;
}

.hero-image-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-logo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 77, 46, 0.85) 0%, rgba(45, 95, 124, 0.75) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--color-white);
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 40px;
    line-height: 1.8;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out 0.2s backwards;
}

.hero-subtitle-custom {
    font-size: 1.25rem;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    animation: fadeInUp 1s ease-out 0.4s backwards;
}

/* ===================================
   ボタンスタイル
   =================================== */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--color-secondary);
    color: var(--color-white);
}

.btn-primary:hover {
    background: #c89558;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}

.btn-secondary:hover {
    background: var(--color-white);
    color: var(--color-primary);
    transform: translateY(-3px);
}

.btn-full {
    width: 100%;
}

/* ===================================
   セクション共通スタイル
   =================================== */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 15px;
}

.title-underline {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    margin: 0 auto 20px;
    border-radius: 2px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--color-text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* ===================================
   会社概要セクション
   =================================== */
.about {
    background: var(--color-bg-light);
}

.about-content {
    max-width: 1000px;
    margin: 0 auto;
}

.about-logo-container {
    text-align: center;
    margin-bottom: 40px;
}

.about-logo {
    height: 120px;
    width: auto;
    animation: fadeInUp 0.8s ease-out;
}

.about-description {
    margin-bottom: 50px;
    text-align: center;
}

.about-description p {
    font-size: 1.1rem;
    line-height: 2;
    color: var(--color-text);
    margin-bottom: 25px;
}

.about-representative {
    background: linear-gradient(135deg, rgba(26, 77, 46, 0.05), rgba(212, 165, 116, 0.05));
    padding: 25px;
    border-radius: 12px;
    border-left: 4px solid var(--color-primary);
}

.company-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.info-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    background: var(--color-white);
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.info-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.info-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-light-green));
    color: var(--color-white);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.info-content h4 {
    color: var(--color-primary);
    font-size: 1.1rem;
    margin-bottom: 8px;
    font-weight: 600;
}

.info-content p {
    color: var(--color-text);
    line-height: 1.6;
}

.info-subtext {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

/* ===================================
   サービスセクション
   =================================== */
.services {
    background: var(--color-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--color-white);
    padding: 35px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border-top: 4px solid var(--color-primary);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-top-color: var(--color-secondary);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-light-green));
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 20px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
    transform: rotate(360deg);
}

.service-card h3 {
    color: var(--color-primary);
    font-size: 1.4rem;
    margin-bottom: 15px;
    font-weight: 600;
    line-height: 1.4;
}

.service-card p {
    color: var(--color-text-light);
    line-height: 1.8;
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 10px 20px;
    border: 2px solid var(--color-primary);
    border-radius: 8px;
    transition: var(--transition);
    margin-top: 15px;
}

.service-link:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.service-link i {
    font-size: 0.85rem;
}

/* ===================================
   代表者セクション
   =================================== */
.representative {
    background: linear-gradient(135deg, rgba(26, 77, 46, 0.03), rgba(212, 165, 116, 0.03));
}

.representative-content {
    max-width: 900px;
    margin: 0 auto;
    background: var(--color-white);
    padding: 50px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

.representative-name {
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: 10px;
    font-weight: 700;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.name-en {
    font-size: 1.2rem;
    color: var(--color-text-light);
    font-weight: 400;
    font-family: var(--font-en);
}

.representative-title {
    font-size: 1.1rem;
    color: var(--color-secondary);
    margin-bottom: 30px;
    font-weight: 500;
}

.representative-bio h4 {
    color: var(--color-primary);
    font-size: 1.3rem;
    margin-bottom: 20px;
    font-weight: 600;
}

.bio-list {
    list-style: none;
    margin-bottom: 30px;
}

.bio-list li {
    padding: 15px 0 15px 40px;
    position: relative;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
    line-height: 1.8;
}

.bio-list li:last-child {
    border-bottom: none;
}

.bio-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 15px;
    color: var(--color-primary);
    font-weight: 700;
    font-size: 1.2rem;
}

.representative-qualifications {
    margin-bottom: 30px;
}

.representative-qualifications h4 {
    color: var(--color-primary);
    font-size: 1.3rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.qualifications-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 12px;
    list-style: none;
    background: linear-gradient(135deg, rgba(26, 77, 46, 0.05), rgba(212, 165, 116, 0.05));
    padding: 20px;
    border-radius: 12px;
    border-left: 4px solid var(--color-secondary);
}

.qualifications-list li {
    color: var(--color-text);
    font-weight: 500;
    padding: 8px 12px;
    background: var(--color-white);
    border-radius: 6px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.qualifications-list li:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.qualifications-list li span {
    font-size: 0.85rem;
    color: var(--color-text-light);
    font-weight: 400;
}

.representative-message {
    margin-top: 30px;
}

.representative-message h4 {
    color: var(--color-primary);
    font-size: 1.3rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.representative-message p {
    color: var(--color-text);
    line-height: 2;
    background: var(--color-bg-light);
    padding: 25px;
    border-radius: 12px;
    border-left: 4px solid var(--color-secondary);
}

/* ===================================
   お問い合わせセクション
   =================================== */
.contact {
    background: var(--color-bg-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-form-container,
.contact-info-container {
    background: var(--color-white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

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

.form-group label {
    display: block;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    font-family: var(--font-ja);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 77, 46, 0.1);
}

.form-group textarea {
    resize: vertical;
}

.contact-info-card {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-info-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-info-item i {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-light-green));
    color: var(--color-white);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.contact-info-item h4 {
    color: var(--color-primary);
    font-size: 1.1rem;
    margin-bottom: 8px;
    font-weight: 600;
}

.contact-info-item p {
    color: var(--color-text);
    line-height: 1.6;
}

.contact-info-item a {
    color: var(--color-accent);
    text-decoration: none;
    transition: var(--transition);
}

.contact-info-item a:hover {
    color: var(--color-primary);
}

/* ===================================
   フッター
   =================================== */
.footer {
    background: var(--color-primary);
    color: var(--color-white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 40px;
}

.footer-logo-img {
    height: 80px;
    width: auto;
    margin-bottom: 15px;
}

.footer-tagline {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 10px;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--color-secondary);
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-secondary);
    padding-left: 5px;
}

.footer-contact p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 10px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* ===================================
   トップへ戻るボタン
   =================================== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--color-secondary);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

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

.fade-in {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

/* ===================================
   レスポンシブデザイン
   =================================== */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--color-white);
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
    }
    
    .nav.active {
        left: 0;
    }
    
    .nav-list {
        flex-direction: column;
        padding: 30px;
        gap: 0;
    }
    
    .nav-list li {
        border-bottom: 1px solid var(--color-border);
        padding: 20px 0;
    }
    
    .nav-list li:last-child {
        border-bottom: none;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .hero {
        min-height: 70vh;
        margin-top: 80px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
    
    section {
        padding: 60px 0;
    }
    
    .company-info-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .representative-content {
        padding: 30px 20px;
    }
    
    .contact-form-container,
    .contact-info-container {
        padding: 25px;
    }
    
    .logo-img {
        height: 40px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.6rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .service-card,
    .info-item {
        padding: 25px;
    }
}