/* =========================================================================
   Variables & Reset
   ========================================================================= */
:root {
    /* Colors - Natural & Earthy Palette */
    --color-primary: #4A6741;
    /* Deep forest green */
    --color-primary-light: #7E9675;
    /* Soft green */
    --color-secondary: #8B7355;
    /* Earth brown */
    --color-accent: #D4A373;
    /* Warm clay/sunlight */
    --color-bg-main: #FAFAFA;
    /* Off-white for pure background */
    --color-bg-light: #F4F1ED;
    /* Very light earthy grey for sections */
    --color-text-main: #333333;
    /* Soft black for readable text */
    --color-text-light: #666666;
    /* Grey text */
    --color-white: #FFFFFF;

    /* Typography */
    --font-sans: 'Noto Sans JP', sans-serif;
    --font-serif: 'Shippori Mincho', serif;

    /* Layout */
    --max-width: 1100px;
    --header-height: 80px;

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

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

html {
    scroll-behavior: smooth;
    font-size: 62.5%;
    /* 1rem = 10px */
}

body {
    font-family: var(--font-sans);
    font-size: 1.6rem;
    line-height: 1.8;
    color: var(--color-text-main);
    background-color: var(--color-bg-main);
    letter-spacing: 0.05em;
    -webkit-font-smoothing: antialiased;
}

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

ul {
    list-style: none;
}

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

.pc-only {
    display: block;
}

.sp-only {
    display: none;
}

@media (max-width: 768px) {
    .pc-only {
        display: none;
    }

    .sp-only {
        display: block;
    }
}

/* =========================================================================
   Layout & Utilities
   ========================================================================= */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 5%;
}

.section {
    padding: 100px 0;
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }
}

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

.bg-dark {
    background-color: var(--color-primary);
    color: var(--color-white);
}

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

.text-white {
    color: var(--color-white) !important;
}

.mt-4 {
    margin-top: 4rem;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-en {
    display: block;
    font-family: var(--font-sans);
    font-size: 1.2rem;
    color: var(--color-primary-light);
    letter-spacing: 0.15em;
    margin-bottom: 8px;
}

.bg-dark .section-en {
    color: var(--color-accent);
}

.section-title {
    font-family: var(--font-serif);
    font-size: 3.2rem;
    font-weight: 500;
    color: var(--color-primary);
}

.bg-dark .section-title {
    color: var(--color-white);
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2.6rem;
    }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 16px 40px;
    font-size: 1.5rem;
    font-weight: 500;
    text-align: center;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-fast);
    border: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    border: 1px solid var(--color-primary);
}

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

.btn-submit {
    background-color: var(--color-accent);
    color: var(--color-white);
    width: 100%;
    max-width: 300px;
    padding: 16px 0;
    font-size: 1.6rem;
}

.btn-submit:hover {
    background-color: #c29162;
}

/* =========================================================================
   Header & Navigation
   ========================================================================= */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: transparent;
    z-index: 100;
    transition: var(--transition-fast);
}

.header.is-scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    padding: 0 40px;
}

.logo a {
    font-family: var(--font-serif);
    font-size: 2.4rem;
    font-weight: 600;
    color: var(--color-white);
    letter-spacing: 0.05em;
}

.header.is-scrolled .logo a {
    color: var(--color-primary);
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-list a {
    font-size: 1.4rem;
    font-weight: 500;
    color: var(--color-white);
    position: relative;
}

.header.is-scrolled .nav-list a {
    color: var(--color-text-main);
}

.nav-list a:not(.btn-contact)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: var(--transition-fast);
}

.nav-list a:not(.btn-contact):hover::after {
    width: 100%;
}

.btn-contact {
    background-color: var(--color-accent);
    color: var(--color-white) !important;
    padding: 10px 24px;
    border-radius: 4px;
    transition: var(--transition-fast);
}

.btn-contact:hover {
    background-color: #c29162;
}

.hamburger-menu {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
    z-index: 101;
}

.hamburger-menu span {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-white);
    transition: var(--transition-fast);
}

.header.is-scrolled .hamburger-menu span {
    background-color: var(--color-primary);
}

.hamburger-menu span:nth-child(1) {
    top: 0;
}

.hamburger-menu span:nth-child(2) {
    top: 9px;
}

.hamburger-menu span:nth-child(3) {
    bottom: 0;
}

.hamburger-menu.is-active span {
    background-color: var(--color-text-main);
}

.hamburger-menu.is-active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.hamburger-menu.is-active span:nth-child(2) {
    opacity: 0;
}

.hamburger-menu.is-active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

@media (max-width: 992px) {
    .header-inner {
        padding: 0 5%;
    }

    .hamburger-menu {
        display: block;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background-color: rgba(255, 255, 255, 0.98);
        transition: right 0.4s ease;
        display: flex;
        justify-content: center;
        align-items: center;
        z-index: 100;
    }

    .nav.is-active {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        gap: 40px;
        text-align: center;
    }

    .nav-list a,
    .header.is-scrolled .nav-list a {
        color: var(--color-text-main);
        font-size: 1.8rem;
    }

    .btn-contact {
        margin-top: 20px;
    }
}

/* =========================================================================
   Hero Section
   ========================================================================= */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    padding-left: 10%;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* We'll replace this gradient with an actual image via inline style/JS if needed, 
       but for now use CSS gradient simulating a misty forest */
    background: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), url('https://images.unsplash.com/photo-1542051812871-757511640196?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
    background-color: var(--color-primary);
    /* fallback */
    z-index: -1;
    transform: scale(1.05);
    /* slightly scaled for animation ready */
    animation: zoomOut 10s ease infinite alternate;
}

@keyframes zoomOut {
    0% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
    }
}

.hero-content {
    color: var(--color-white);
    max-width: 800px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 5.4rem;
    font-weight: 500;
    line-height: 1.3;
    margin-bottom: 24px;
    letter-spacing: 0.05em;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.8rem;
    font-weight: 400;
    line-height: 1.8;
    letter-spacing: 0.1em;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}

.scroll-down {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-white);
    font-family: var(--font-sans);
    font-size: 1rem;
    letter-spacing: 0.2em;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.scroll-down::after {
    content: '';
    width: 1px;
    height: 40px;
    background-color: var(--color-white);
    animation: scrollDown 2s infinite cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes scrollDown {
    0% {
        transform: scaleY(0);
        transform-origin: top;
    }

    50% {
        transform: scaleY(1);
        transform-origin: top;
    }

    50.1% {
        transform: scaleY(1);
        transform-origin: bottom;
    }

    100% {
        transform: scaleY(0);
        transform-origin: bottom;
    }
}

@media (max-width: 768px) {
    .hero {
        padding-left: 5%;
        padding-right: 5%;
        text-align: center;
    }

    .hero-title {
        font-size: 3.6rem;
    }

    .hero-subtitle {
        font-size: 1.5rem;
    }
}

/* =========================================================================
   About Section
   ========================================================================= */
.about-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.about-text {
    flex: 1;
}

.about-text .lead {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    color: var(--color-primary);
    margin-bottom: 30px;
    line-height: 1.6;
}

.about-text p:not(.lead) {
    margin-bottom: 20px;
    color: var(--color-text-light);
}

.about-image {
    flex: 1;
}

.image-placeholder {
    width: 100%;
    height: 400px;
    border-radius: 8px;
    background-color: #ddd;
    background-position: center;
    background-size: cover;
}

/* We will assign backgrounds to these elements */
.bg-forest {
    background: url('../images/桜.jpg') center/cover;
}

@media (max-width: 992px) {
    .about-content {
        flex-direction: column;
    }

    .image-placeholder {
        height: 300px;
    }
}

/* =========================================================================
   Services Section
   ========================================================================= */
.section-desc {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 50px;
    color: var(--color-text-light);
}

.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.card {
    background-color: var(--color-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    transition: var(--transition-fast);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.card-image {
    height: 220px;
    background-color: #ddd;
    background-position: center;
    background-size: cover;
}

.bg-nature {
    background: url('../images/ごれいびつ峠.jpg') center/cover;
}

.bg-culture {
    background: url('../images/日本酒.jpg') center/cover;
}

.bg-food {
    background: url('../images/でんがく.jpg') center/cover;
}

.card-body {
    padding: 30px;
}

.card-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: 15px;
}

.card-text {
    font-size: 1.4rem;
    color: var(--color-text-light);
}

@media (max-width: 992px) {
    .cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .cards {
        grid-template-columns: 1fr;
    }
}

/* =========================================================================
   Partners Section
   ========================================================================= */
.partners-box {
    background-color: var(--color-white);
    padding: 60px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(74, 103, 65, 0.1);
    position: relative;
    overflow: hidden;
}

.partners-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 6px;
    height: 100%;
    background-color: var(--color-primary);
}

.partners-content {
    max-width: 800px;
    margin: 0 auto;
}

.partners-catch {
    font-family: var(--font-serif);
    font-size: 2.4rem;
    color: var(--color-text-main);
    text-align: center;
    margin-bottom: 30px;
}

.partners-list {
    margin: 30px 0;
    padding-left: 20px;
}

.partners-list li {
    position: relative;
    margin-bottom: 15px;
    padding-left: 15px;
    color: var(--color-text-light);
}

.partners-list li::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--color-accent);
}

.partners-list strong {
    color: var(--color-text-main);
}

.note {
    font-size: 1.4rem;
    color: var(--color-primary);
    font-weight: 500;
    text-align: center;
    padding: 20px;
    background-color: var(--color-bg-light);
    border-radius: 6px;
}

@media (max-width: 768px) {
    .partners-box {
        padding: 40px 20px;
    }

    .partners-catch {
        font-size: 2rem;
    }
}

/* =========================================================================
   Company Section
   ========================================================================= */
.company-table {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    border-collapse: collapse;
}

.company-table th,
.company-table td {
    padding: 25px 20px;
    text-align: left;
    border-bottom: 1px solid #eee;
    font-size: 1.5rem;
}

.company-table th {
    width: 30%;
    font-weight: 500;
    color: var(--color-text-main);
    background-color: var(--color-bg-light);
}

.company-table td {
    width: 70%;
    color: var(--color-text-light);
}

.company-table tr:first-child th,
.company-table tr:first-child td {
    border-top: 1px solid #eee;
}

@media (max-width: 768px) {

    .company-table th,
    .company-table td {
        display: block;
        width: 100%;
    }

    .company-table th {
        padding: 15px 20px 5px;
        border-bottom: none;
        background-color: transparent;
        color: var(--color-primary);
    }

    .company-table td {
        padding: 5px 20px 15px;
    }
}

/* =========================================================================
   Contact Section
   ========================================================================= */
.contact-lead {
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 50px;
}

.contact-form {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--color-white);
    padding: 50px;
    border-radius: 8px;
    color: var(--color-text-main);
}

.form-group {
    margin-bottom: 30px;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 10px;
    font-size: 1.4rem;
}

.required {
    display: inline-block;
    background-color: #E74C3C;
    color: white;
    font-size: 1.1rem;
    padding: 2px 8px;
    border-radius: 3px;
    margin-left: 10px;
    vertical-align: middle;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1.5rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(74, 103, 65, 0.1);
}

.form-submit {
    text-align: center;
    margin-top: 40px;
}

@media (max-width: 768px) {
    .contact-form {
        padding: 30px 20px;
    }
}

/* =========================================================================
   Footer
   ========================================================================= */
.footer {
    background-color: #2D3A29;
    color: rgba(255, 255, 255, 0.7);
    padding: 60px 0 30px;
    text-align: center;
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 2.4rem;
    color: var(--color-white);
    margin-bottom: 10px;
}

.footer-desc {
    font-size: 1.3rem;
    margin-bottom: 30px;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 40px;
}

.footer-links a:hover {
    color: var(--color-white);
}

.copyright {
    font-size: 1.2rem;
}

/* =========================================================================
   Animations
   ========================================================================= */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in-up {
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(40px);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
    }
}