/* ====================
   基本設定
   ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* カラーパレット：自然・農業をイメージ */
    --primary-green: #4a7c59;
    --dark-green: #2d5a3d;
    --light-green: #a8d5ba;
    --earth-brown: #8b7355;
    --warm-beige: #f5f1e8;
    --soft-cream: #fdfbf7;
    --text-dark: #2c2c2c;
    --text-gray: #666666;
    --white: #ffffff;
    --shadow: rgba(0, 0, 0, 0.1);
    --overlay: rgba(0, 0, 0, 0.4);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--soft-cream);
}

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

a {
    text-decoration: none;
    color: inherit;
}

/* ====================
   ナビゲーション
   ==================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px var(--shadow);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-green);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-green);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-green);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-green);
    transition: all 0.3s ease;
}

/* ====================
   ヒーローセクション
   ==================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0.3), rgba(0,0,0,0.5));
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: var(--white);
    max-width: 800px;
    padding: 2rem;
}

.hero-title {
    font-family: 'Noto Serif JP', serif;
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
    animation: fadeInUp 1s ease 0.2s backwards;
}

.hero-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--primary-green);
    color: var(--white);
    font-size: 1.1rem;
    font-weight: 500;
    border-radius: 50px;
    transition: all 0.3s ease;
    animation: fadeInUp 1s ease 0.4s backwards;
}

.hero-button:hover {
    background: var(--dark-green);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    text-align: center;
    color: var(--white);
    animation: fadeIn 1s ease 0.8s backwards;
}

.scroll-indicator span {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

.scroll-arrow {
    width: 2px;
    height: 30px;
    background: var(--white);
    margin: 0 auto;
    position: relative;
    animation: scrollAnimation 2s infinite;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid var(--white);
}

/* ====================
   共通セクションスタイル
   ==================== */
section {
    padding: 5rem 2rem;
}

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

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

.section-title {
    font-family: 'Noto Serif JP', serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-green);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-gray);
}

/* ====================
   農業作業紹介セクション
   ==================== */
.works-section {
    background: var(--white);
}

.works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.work-card {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.work-image {
    position: relative;
    overflow: hidden;
    height: 350px;
}

.work-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.work-card:hover .work-image img {
    transform: scale(1.1);
}

.work-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent, rgba(0,0,0,0.8));
    display: flex;
    align-items: flex-end;
    padding: 2rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.work-card:hover .work-overlay {
    opacity: 1;
}

.work-info h3 {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.8rem;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.work-info p {
    color: rgba(255,255,255,0.9);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.work-season {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--primary-green);
    color: var(--white);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* ====================
   季節カレンダーセクション
   ==================== */
.calendar-section {
    background: var(--warm-beige);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.season-card {
    background: var(--white);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 15px var(--shadow);
    transition: transform 0.3s ease;
    position: relative;
    overflow: hidden;
}

.season-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
}

.season-card.spring::before {
    background: linear-gradient(90deg, #ffb3ba, #ffdfba);
}

.season-card.summer::before {
    background: linear-gradient(90deg, #bae1ff, #baffc9);
}

.season-card.autumn::before {
    background: linear-gradient(90deg, #ffb347, #ff6961);
}

.season-card.winter::before {
    background: linear-gradient(90deg, #c9d6ff, #e2e2e2);
}

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

.season-icon {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 1rem;
}

.season-title {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.5rem;
    color: var(--primary-green);
    text-align: center;
    margin-bottom: 1.5rem;
}

.season-tasks {
    list-style: none;
    margin-bottom: 1.5rem;
}

.season-tasks li {
    padding: 0.6rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    padding-left: 1.5rem;
    position: relative;
}

.season-tasks li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-green);
    font-weight: bold;
}

.season-image {
    border-radius: 8px;
    overflow: hidden;
    margin-top: 1.5rem;
}

.season-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.season-card:hover .season-image img {
    transform: scale(1.05);
}

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

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    margin-top: 3rem;
}

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

.info-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.info-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.info-text h4 {
    font-size: 1.1rem;
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

.info-text p {
    color: var(--text-gray);
    line-height: 1.8;
}

.contact-form-wrapper {
    background: var(--warm-beige);
    padding: 2.5rem;
    border-radius: 16px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 2px solid rgba(0,0,0,0.1);
    border-radius: 8px;
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-green);
}

.form-group textarea {
    resize: vertical;
}

.submit-button {
    width: 100%;
    padding: 1rem 2rem;
    background: var(--primary-green);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-button:hover {
    background: var(--dark-green);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* ====================
   フッター
   ==================== */
.footer {
    background: var(--dark-green);
    color: var(--white);
    padding: 3rem 2rem 1.5rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-logo {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.footer-text {
    color: rgba(255,255,255,0.8);
    margin-bottom: 2rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: rgba(255,255,255,0.8);
    transition: color 0.3s ease;
}

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

.footer-bottom {
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.2);
}

.footer-bottom p {
    color: rgba(255,255,255,0.6);
    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 fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes scrollAnimation {
    0%, 100% {
        transform: translateY(0);
        opacity: 1;
    }
    50% {
        transform: translateY(10px);
        opacity: 0.5;
    }
}

/* ====================
   レスポンシブデザイン
   ==================== */

/* タブレット */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 100%;
        max-width: 300px;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: -5px 0 15px var(--shadow);
        transition: right 0.3s ease;
    }

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

    .hamburger {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .works-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1.5rem;
    }

    .calendar-grid {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* スマートフォン */
@media (max-width: 480px) {
    .nav-container {
        padding: 1rem;
    }

    .nav-logo {
        font-size: 1.2rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-button {
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }

    section {
        padding: 3rem 1rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

    .works-grid {
        grid-template-columns: 1fr;
    }

    .work-image {
        height: 250px;
    }

    .contact-form-wrapper {
        padding: 1.5rem;
    }

    .footer-links {
        gap: 1rem;
    }
}