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

:root {
    /* カラーパレット - 森・自然テーマ */
    --primary-green: #2d5016;
    --secondary-green: #4a7c2d;
    --light-green: #7fb069;
    --pale-green: #b4d7a8;
    --cream: #f5f3e7;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --medium-gray: #6c757d;
    --dark-gray: #343a40;
    --accent-gold: #d4af37;
    
    /* フォント */
    --font-primary: 'Zen Kaku Gothic New', 'Noto Sans JP', sans-serif;
    
    /* シャドウ */
    --shadow-sm: 0 2px 8px rgba(45, 80, 22, 0.1);
    --shadow-md: 0 4px 16px rgba(45, 80, 22, 0.15);
    --shadow-lg: 0 8px 32px rgba(45, 80, 22, 0.2);
    
    /* トランジション */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.8;
    color: var(--dark-gray);
    background-color: var(--cream);
    overflow-x: hidden;
}

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

/* ==========================================
   ヘッダー
   ========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--secondary-green) 100%);
    padding: 1rem 0;
    box-shadow: var(--shadow-md);
    z-index: 1000;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
}

.logo i {
    font-size: 2rem;
    color: var(--pale-green);
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

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

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

.nav a:hover {
    color: var(--pale-green);
}

/* ==========================================
   メインビジュアル（ヒーローセクション）
   ========================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

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

.hero-bg-image {
    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(232, 245, 233, 0.85) 0%, rgba(200, 230, 201, 0.85) 50%, rgba(165, 214, 167, 0.85) 100%);
}

.hero-content {
    text-align: center;
    z-index: 2;
    animation: fadeInUp 1s ease-out;
    position: relative;
}

.hero-icon {
    font-size: 5rem;
    color: var(--secondary-green);
    margin-bottom: 2rem;
    animation: float 3s ease-in-out infinite;
}

.hero-title {
    font-size: 3.5rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(255, 255, 255, 0.8);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--secondary-green);
    margin-bottom: 2rem;
    font-weight: 500;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--dark-gray);
    max-width: 600px;
    margin: 0 auto;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
}

.hero-description p {
    margin-bottom: 0.5rem;
}

.hero-decoration {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 1;
}

.leaf {
    position: absolute;
    font-size: 3rem;
    color: var(--light-green);
    opacity: 0.3;
    animation: leafFloat 6s ease-in-out infinite;
}

.leaf-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.leaf-2 {
    top: 60%;
    right: 15%;
    animation-delay: 1.5s;
}

.leaf-3 {
    bottom: 25%;
    left: 20%;
    animation-delay: 3s;
}

.leaf-4 {
    top: 40%;
    right: 25%;
    animation-delay: 4.5s;
}

/* ==========================================
   セクション共通スタイル
   ========================================== */
.section {
    padding: 6rem 0;
}

.section:nth-child(even) {
    background-color: var(--white);
}

.section:nth-child(odd) {
    background-color: var(--cream);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-icon {
    font-size: 3rem;
    color: var(--secondary-green);
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--light-green) 0%, var(--secondary-green) 100%);
    border-radius: 2px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--medium-gray);
    margin-top: 1.5rem;
}

.section-image-container {
    margin: 3rem 0;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.section-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
    transition: var(--transition);
}

.section-image:hover {
    transform: scale(1.05);
}

/* ==========================================
   会社概要セクション
   ========================================== */
.visual-intro {
    text-align: center;
    margin: 3rem 0;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(180, 215, 168, 0.2) 0%, rgba(127, 176, 105, 0.2) 100%);
    border-radius: 20px;
}

.intro-icon-group {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.intro-icon {
    font-size: 3rem;
    color: var(--secondary-green);
    animation: pulse 2s ease-in-out infinite;
}

.intro-arrow {
    font-size: 2rem;
    color: var(--light-green);
    opacity: 0.6;
}

.intro-text {
    font-size: 1.2rem;
    color: var(--primary-green);
    font-weight: 500;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.company-info-card {
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    padding: 3rem;
    max-width: 900px;
    margin: 0 auto;
    border: 2px solid var(--pale-green);
}

.company-header {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--pale-green);
    margin-bottom: 2rem;
}

.company-logo {
    font-size: 4rem;
    color: var(--secondary-green);
    background: linear-gradient(135deg, rgba(180, 215, 168, 0.2) 0%, rgba(127, 176, 105, 0.2) 100%);
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
}

.company-title h3 {
    font-size: 2rem;
    color: var(--primary-green);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.company-tagline {
    font-size: 1.1rem;
    color: var(--secondary-green);
    font-weight: 500;
}

.company-details {
    display: grid;
    gap: 2rem;
}

.detail-row {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(245, 243, 231, 0.5) 0%, rgba(248, 249, 250, 0.5) 100%);
    border-radius: 12px;
    transition: var(--transition);
}

.detail-row:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-sm);
}

.detail-icon {
    font-size: 2rem;
    color: var(--secondary-green);
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.detail-content h4 {
    font-size: 1rem;
    color: var(--secondary-green);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.detail-content p {
    font-size: 1.1rem;
    color: var(--dark-gray);
    line-height: 1.7;
    font-weight: 500;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.info-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.info-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--light-green);
}

.card-icon {
    font-size: 2.5rem;
    color: var(--secondary-green);
    margin-bottom: 1rem;
}

.info-card h3 {
    font-size: 1.3rem;
    color: var(--primary-green);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.info-value {
    font-size: 1.1rem;
    color: var(--dark-gray);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.info-description {
    font-size: 0.9rem;
    color: var(--medium-gray);
    font-style: italic;
}

/* ==========================================
   事業目的セクション
   ========================================== */
.category-section {
    margin-bottom: 4rem;
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    margin-bottom: 2rem;
    padding: 2rem;
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--secondary-green) 100%);
    border-radius: 16px;
    color: var(--white);
    overflow: hidden;
}

.category-header-content {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.category-header-content i {
    font-size: 2.5rem;
}

.category-header-content h3 {
    font-size: 1.8rem;
    font-weight: 600;
}

.category-image {
    width: 200px;
    height: 130px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    border: 3px solid rgba(255, 255, 255, 0.3);
    flex-shrink: 0;
}

.purpose-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.purpose-card {
    background: var(--white);
    padding: 1.75rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    position: relative;
    transition: var(--transition);
    border-left: 4px solid var(--light-green);
}

.purpose-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
    border-left-color: var(--secondary-green);
}

.purpose-number {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 2rem;
    font-weight: 700;
    color: var(--pale-green);
    opacity: 0.5;
}

.purpose-icon {
    font-size: 2rem;
    color: var(--secondary-green);
    margin-bottom: 1rem;
}

.purpose-card h3 {
    font-size: 1.2rem;
    color: var(--primary-green);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.purpose-card p {
    font-size: 0.95rem;
    color: var(--medium-gray);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.card-tag {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: linear-gradient(135deg, var(--pale-green) 0%, var(--light-green) 100%);
    color: var(--white);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* ==========================================
   お問い合わせセクション
   ========================================== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

.contact-form-container {
    background: var(--white);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--primary-green);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-group label i {
    color: var(--secondary-green);
}

.required {
    color: #d32f2f;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 1rem;
    border: 2px solid var(--pale-green);
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-green);
    box-shadow: 0 0 0 3px rgba(74, 124, 45, 0.1);
}

.form-group textarea {
    resize: vertical;
}

.submit-btn {
    background: linear-gradient(135deg, var(--secondary-green) 0%, var(--primary-green) 100%);
    color: var(--white);
    padding: 1.25rem 3rem;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.form-success {
    text-align: center;
    padding: 3rem;
}

.form-success i {
    font-size: 4rem;
    color: var(--secondary-green);
    margin-bottom: 1.5rem;
}

.form-success h3 {
    font-size: 2rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
}

.form-success p {
    font-size: 1.1rem;
    color: var(--medium-gray);
    line-height: 1.8;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-box {
    background: var(--white);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--light-green);
}

.info-icon {
    font-size: 2.5rem;
    color: var(--secondary-green);
    margin-bottom: 1rem;
}

.info-box h3 {
    font-size: 1.3rem;
    color: var(--primary-green);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.info-box p {
    font-size: 0.95rem;
    color: var(--medium-gray);
    line-height: 1.7;
}

/* ==========================================
   フッター
   ========================================== */
.org-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin: 3rem 0;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(180, 215, 168, 0.15) 0%, rgba(127, 176, 105, 0.15) 100%);
    border-radius: 16px;
}

.org-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    min-width: 140px;
}

.org-item i {
    font-size: 2.5rem;
    color: var(--secondary-green);
}

.org-item span {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-green);
    text-align: center;
}

.org-item.highlight {
    background: linear-gradient(135deg, var(--light-green) 0%, var(--secondary-green) 100%);
    transform: scale(1.1);
}

.org-item.highlight i,
.org-item.highlight span {
    color: var(--white);
}

.org-connector {
    font-size: 2rem;
    font-weight: 700;
    color: var(--light-green);
}

.member-card {
    background: linear-gradient(135deg, var(--white) 0%, var(--light-gray) 100%);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    max-width: 900px;
    margin: 0 auto;
}

.member-info {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
}

.member-icon {
    font-size: 5rem;
    color: var(--secondary-green);
    flex-shrink: 0;
}

.member-details h3 {
    font-size: 1.1rem;
    color: var(--secondary-green);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.member-name {
    font-size: 2rem;
    color: var(--primary-green);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.member-meta {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.meta-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--medium-gray);
}

.meta-item i {
    color: var(--light-green);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

/* ==========================================
   フッター
   ========================================== */
.footer {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--secondary-green) 100%);
    color: var(--white);
    padding: 3rem 0 1rem;
    position: relative;
    overflow: hidden;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-logo i {
    font-size: 2rem;
    color: var(--pale-green);
}

.footer-info {
    text-align: right;
}

.footer-info p {
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.footer-decoration {
    display: flex;
    justify-content: center;
    gap: 2rem;
    font-size: 1.5rem;
    color: var(--pale-green);
    opacity: 0.5;
    margin: 2rem 0;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-bottom p {
    opacity: 0.8;
    font-size: 0.9rem;
}

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

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes leafFloat {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(10px, -15px) rotate(5deg);
    }
    50% {
        transform: translate(-5px, -25px) rotate(-5deg);
    }
    75% {
        transform: translate(15px, -15px) rotate(3deg);
    }
}

/* ==========================================
   レスポンシブデザイン
   ========================================== */
@media (max-width: 768px) {
    .nav {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-end;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-image {
        height: 250px;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
    }
    
    .purpose-grid {
        grid-template-columns: 1fr;
    }
    
    .intro-icon-group {
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .intro-icon {
        font-size: 2.5rem;
    }
    
    .intro-arrow {
        font-size: 1.5rem;
    }
    
    .company-info-card {
        padding: 2rem;
    }
    
    .company-header {
        flex-direction: column;
        text-align: center;
    }
    
    .company-logo {
        font-size: 3rem;
        width: 80px;
        height: 80px;
    }
    
    .company-title h3 {
        font-size: 1.5rem;
    }
    
    .detail-row {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .category-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .category-image {
        width: 100%;
        height: 180px;
    }
    
    .org-visual {
        flex-direction: column;
        gap: 1rem;
    }
    
    .org-connector {
        transform: rotate(90deg);
    }
    
    .member-info {
        flex-direction: column;
        text-align: center;
    }
    
    .member-icon {
        font-size: 4rem;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-form-container {
        padding: 2rem;
    }
    
    .submit-btn {
        width: 100%;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-info {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-icon {
        font-size: 3.5rem;
    }
    
    .section {
        padding: 4rem 0;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .logo {
        font-size: 1.2rem;
    }
    
    .logo i {
        font-size: 1.5rem;
    }
}

/* ==========================================
   スクロールバーのカスタマイズ
   ========================================== */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--cream);
}

::-webkit-scrollbar-thumb {
    background: var(--light-green);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-green);
}