:root {
    --color-bg: #F4F1ED; /* Earthy paper */
    --color-surface: #FCFAFA; /* Slightly lighter for cards */
    --color-text-main: #2C302E; /* Charcoal */
    --color-text-muted: #5A5D5A;
    --color-primary: #4A5D23; /* Moss green */
    --color-secondary: #859666; /* Sage */
    --color-accent: #8C593B; /* Wood */
    --color-border: #DCD7D0;
    
    --font-heading: 'Shippori Mincho', serif;
    --font-body: "Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic UI","Yu Gothic",Meiryo,system-ui,sans-serif, sans-serif;
    --font-accent: 'Yuji Syuku', serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 0.3s ease;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text-main);
    line-height: 1.8;
    font-size: 16px;
    font-weight: 300;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.4;
    color: var(--color-primary);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header & Navigation */
.site-header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(244, 241, 237, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
    transition: transform 0.4s ease;
}

.site-header.hide {
    transform: translateY(-100%);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    flex-direction: column;
    text-decoration: none;
}

.logo-main {
    font-family: var(--font-accent);
    font-size: 1.5rem;
    color: var(--color-primary);
    letter-spacing: 0.05em;
}

.logo-sub {
    font-family: var(--font-body);
    font-size: 0.7rem;
    color: var(--color-accent);
    letter-spacing: 0.1em;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    font-family: var(--font-heading);
    font-size: 1rem;
    color: var(--color-text-main);
    position: relative;
    padding-bottom: 4px;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-primary);
    transition: width var(--transition-fast);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 1px;
    background-color: var(--color-primary);
    position: absolute;
    transition: var(--transition-fast);
}

.mobile-menu-toggle span:nth-child(1) { top: 0; }
.mobile-menu-toggle span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.mobile-menu-toggle span:nth-child(3) { bottom: 0; }

.mobile-menu-toggle.is-active span:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}
.mobile-menu-toggle.is-active span:nth-child(2) {
    opacity: 0;
}
.mobile-menu-toggle.is-active span:nth-child(3) {
    bottom: 50%;
    transform: translateY(50%) rotate(-45deg);
}

/* Hero Section */
.hero {
    height: 100vh;
    min-height: 600px;
    position: relative;
    display: flex;
    align-items: center;
    padding-top: 80px; /* Offset header */
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
    transform: scale(1.05);
    animation: slowZoom 20s infinite alternate linear;
}

@keyframes slowZoom {
    0% { transform: scale(1.05); }
    100% { transform: scale(1.15); }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(244, 241, 237, 0.9) 0%, rgba(244, 241, 237, 0.4) 50%, rgba(244, 241, 237, 0.1) 100%);
    z-index: -1;
}

.hero-content {
    max-width: 600px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 1.2s var(--transition-slow) forwards;
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: 1rem;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    display: block;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 5vw, 5rem);
    color: var(--color-primary);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 10px rgba(255,255,255,0.5);
}

.btn {
    display: inline-block;
    padding: 16px 32px;
    background-color: var(--color-primary);
    color: #fff;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    border: 1px solid var(--color-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
    text-align: center;
    cursor: pointer;
}

.btn:hover {
    background-color: transparent;
    color: var(--color-primary);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
}

.btn-outline:hover {
    background-color: var(--color-primary);
    color: #fff;
}

/* Vertical Text Decoration */
.vert-text {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-family: var(--font-accent);
    color: var(--color-border);
    font-size: 3rem;
    position: absolute;
    right: 5%;
    top: 20%;
    z-index: 0;
    opacity: 0.5;
    letter-spacing: 0.2em;
    pointer-events: none;
}

/* Sections */
.section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-alt {
    background-color: var(--color-surface);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-sm);
}

.section-desc {
    max-width: 600px;
    margin: 0 auto;
    color: var(--color-text-muted);
}

/* Two Column Layout (Image + Text) */
.split-layout {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.split-layout.reverse {
    flex-direction: row-reverse;
}

.split-image {
    flex: 1;
    position: relative;
}

.split-image img {
    border-radius: 2px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
}

.split-image::after {
    content: '';
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 60%;
    height: 60%;
    background-color: var(--color-secondary);
    z-index: -1;
    opacity: 0.1;
}

.split-layout.reverse .split-image::after {
    right: auto;
    left: -20px;
}

.split-text {
    flex: 1;
}

.split-text h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.split-text p {
    margin-bottom: var(--spacing-md);
}

/* Philosophy Section */
.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.philosophy-card {
    background: #fff;
    padding: var(--spacing-md);
    border-top: 3px solid var(--color-primary);
    box-shadow: 0 10px 30px rgba(0,0,0,0.02);
    transition: transform var(--transition-fast);
}

.philosophy-card:hover {
    transform: translateY(-5px);
}

.philosophy-num {
    font-family: var(--font-accent);
    font-size: 2rem;
    color: var(--color-secondary);
    opacity: 0.5;
    margin-bottom: var(--spacing-sm);
    display: block;
}

/* Plant Grid (Cards) */
.plant-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.plant-card {
    background: #fff;
    border-radius: 2px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.03);
    transition: box-shadow var(--transition-fast), transform var(--transition-fast);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.plant-card:hover {
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
    transform: translateY(-5px);
}

.plant-img-wrapper {
    position: relative;
    padding-top: 100%; /* 1:1 Aspect Ratio */
    overflow: hidden;
}

.plant-img-wrapper img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.plant-card:hover .plant-img-wrapper img {
    transform: scale(1.05);
}

.plant-info {
    padding: var(--spacing-md);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.plant-name {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.plant-desc {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.plant-meta {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-sm);
}

.meta-tag {
    font-size: 0.75rem;
    background: var(--color-bg);
    padding: 4px 10px;
    border-radius: 20px;
    color: var(--color-primary);
}

/* Guide List Layout */
.guide-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
}

.guide-item {
    display: flex;
    gap: var(--spacing-md);
    background: #fff;
    padding: var(--spacing-sm);
    border-radius: 2px;
    box-shadow: 0 5px 25px rgba(0,0,0,0.02);
    transition: box-shadow var(--transition-fast);
}

.guide-item:hover {
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
}

.guide-img {
    width: 40%;
    flex-shrink: 0;
    overflow: hidden;
}

.guide-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.guide-content {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.guide-content h3 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-sm);
}

/* Page Header (Inner pages) */
.page-header {
    padding: calc(80px + var(--spacing-lg)) 0 var(--spacing-lg);
    text-align: center;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.page-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: var(--spacing-sm);
}

/* Contact Layout */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.contact-info-card {
    background: #fff;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
}

.contact-info-item {
    margin-bottom: var(--spacing-md);
}

.contact-info-item h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-accent);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-heading);
    color: var(--color-primary);
}

.form-control {
    width: 100%;
    padding: 15px;
    background: #fff;
    border: 1px solid var(--color-border);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text-main);
    transition: border-color var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
}

textarea.form-control {
    resize: vertical;
    min-height: 150px;
}

/* Guide Detail Page Content */
.article-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
}

.article-content h2 {
    font-size: 2.2rem;
    margin: var(--spacing-lg) 0 var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--color-border);
}

.article-content h3 {
    font-size: 1.5rem;
    margin: var(--spacing-md) 0 var(--spacing-sm);
}

.article-content p {
    margin-bottom: var(--spacing-md);
}

.article-content ul, .article-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
}

.article-content li {
    margin-bottom: var(--spacing-xs);
}

.article-content img {
    margin: var(--spacing-md) 0;
    border-radius: 2px;
}

.article-quote {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-primary);
    border-left: 4px solid var(--color-accent);
    padding-left: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    font-style: italic;
}

/* Footer */
.site-footer {
    background-color: var(--color-primary);
    color: #fff;
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-col h4 {
    color: #d6dec4;
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
}

.footer-logo {
    color: #fff;
}

.footer-logo .logo-main {
    color: #fff;
}

.footer-logo .logo-sub {
    color: #d6dec4;
}

.footer-desc {
    margin-top: var(--spacing-sm);
    color: rgba(255,255,255,0.7);
    max-width: 400px;
}

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

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: rgba(255,255,255,0.8);
}

.footer-links a:hover {
    color: #fff;
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
}

.footer-bottom a {
    color: rgba(255,255,255,0.85);
    margin: 0 10px;
}

.footer-bottom a:hover {
    color: #fff;
}

/* Animations Trigger Class */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s ease-out, transform 1s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Media Queries (Mobile First approach implicitly implemented through overrides below) */
@media (max-width: 992px) {
    .split-layout {
        flex-direction: column;
    }
    .split-layout.reverse {
        flex-direction: column;
    }
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-md: 1.5rem;
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--color-bg);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2rem;
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        z-index: 999;
    }

    .nav-links.is-active {
        transform: translateX(0);
    }
    
    .nav-links a {
        font-size: 1.5rem;
    }

    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .vert-text {
        display: none; /* Hide decorative text on mobile */
    }

    .philosophy-grid {
        grid-template-columns: 1fr;
    }
    
    .guide-item {
        flex-direction: column;
    }
    
    .guide-img {
        width: 100%;
        height: 250px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

.skip-link{position:absolute;left:12px;top:-60px;z-index:3000;background:#fff;color:#1f2e28;padding:10px 16px;border-radius:6px;box-shadow:0 2px 10px rgba(0,0,0,.15);text-decoration:none;font-weight:600}
.skip-link:focus{top:12px}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .fade-in,.scroll-reveal{opacity:1!important;transform:none!important}
}