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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', 'Meiryo', sans-serif;
    line-height: 1.7;
    color: #333;
    overflow-x: hidden;
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* =====================================
   ナビゲーション
   ===================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.nav-brand {
    font-size: 24px;
    font-weight: 700;
    color: #8B4513;
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 1px;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #8B4513;
    transition: width 0.3s ease;
}

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

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

.parallax-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 120%;
    background-size: cover;
    background-position: center;
    will-change: transform;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.5), rgba(139, 69, 19, 0.3));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    padding: 0 20px;
    animation: fadeInUp 1s ease;
}

.hero-title {
    font-size: 64px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 4px;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: 24px;
    margin-bottom: 20px;
    letter-spacing: 3px;
    font-weight: 300;
}

.hero-description {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 40px;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    padding: 18px 50px;
    background: linear-gradient(135deg, #8B4513, #A0522D);
    color: white;
    font-size: 16px;
    font-weight: 600;
    border-radius: 50px;
    letter-spacing: 2px;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(139, 69, 19, 0.3);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(139, 69, 19, 0.4);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: white;
    opacity: 0.8;
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    font-size: 12px;
    letter-spacing: 2px;
    margin-bottom: 10px;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: white;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(-10px);
    }
}

/* =====================================
   セクション共通
   ===================================== */
section {
    padding: 120px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-label {
    font-size: 14px;
    letter-spacing: 3px;
    color: #8B4513;
    font-weight: 600;
    display: block;
    margin-bottom: 15px;
}

.section-label.light {
    color: #D2B48C;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    color: #333;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.section-title.light {
    color: white;
}

.section-description {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
}

.section-description.light {
    color: rgba(255, 255, 255, 0.9);
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

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

/* =====================================
   企業理念セクション
   ===================================== */
.philosophy-section {
    background: #f9f7f4;
}

.philosophy-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.philosophy-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    transition: transform 0.5s ease;
}

.philosophy-image img {
    width: 100%;
    height: auto;
    display: block;
}

.philosophy-text h3 {
    font-size: 28px;
    color: #333;
    margin-bottom: 25px;
    font-weight: 700;
    line-height: 1.5;
}

.philosophy-text p {
    margin-bottom: 20px;
    color: #555;
    line-height: 1.9;
}

.philosophy-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.feature-item {
    text-align: center;
    padding: 30px 20px;
    background: white;
    border-radius: 15px;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.feature-item h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
    font-weight: 600;
}

.feature-item p {
    font-size: 14px;
    color: #666;
}

/* =====================================
   製品紹介セクション
   ===================================== */
.products-section {
    background: white;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.product-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateY(30px);
}

.product-card.aos-animate {
    opacity: 1;
    transform: translateY(0);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.product-image-wrapper {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1 / 1;
}

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

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

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(139, 69, 19, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.product-overlay h4 {
    color: white;
    font-size: 20px;
    letter-spacing: 2px;
}

.product-info {
    padding: 30px;
}

.product-info h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 15px;
    font-weight: 700;
}

.product-info p {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.product-features {
    list-style: none;
}

.product-features li {
    font-size: 13px;
    color: #8B4513;
    margin-bottom: 8px;
    font-weight: 500;
}

/* =====================================
   製造工程セクション
   ===================================== */
.process-section {
    position: relative;
    background: #2c2c2c;
    overflow: hidden;
}

.parallax-bg-dark {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    opacity: 0.3;
    z-index: 0;
}

.process-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.8), rgba(44, 44, 44, 0.9));
    z-index: 1;
}

.process-section .container {
    position: relative;
    z-index: 2;
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50px;
    top: 0;
    height: 100%;
    width: 2px;
    background: linear-gradient(to bottom, #8B4513, #D2B48C);
}

.timeline-item {
    position: relative;
    margin-bottom: 80px;
    padding-left: 120px;
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.8s ease;
}

.timeline-item.visible {
    opacity: 1;
    transform: translateX(0);
}

.timeline-marker {
    position: absolute;
    left: 0;
    top: 0;
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #8B4513, #A0522D);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 0 8px rgba(139, 69, 19, 0.2);
}

.step-number {
    font-size: 24px;
    color: white;
    font-weight: 700;
}

.timeline-content {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.timeline-image {
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 25px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.timeline-content h3 {
    font-size: 28px;
    color: white;
    margin-bottom: 15px;
    font-weight: 700;
}

.timeline-content p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.9;
}

/* =====================================
   配送・梱包情報
   ===================================== */
.info-section {
    background: #f9f7f4;
    padding: 80px 0;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.info-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.info-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.info-card h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
    font-weight: 700;
}

.info-card ul {
    list-style: none;
}

.info-card li {
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
    color: #555;
    font-size: 15px;
}

.info-card li:last-child {
    border-bottom: none;
}

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

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    margin-top: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

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

.contact-icon {
    font-size: 36px;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
    font-weight: 600;
}

.contact-item p {
    color: #666;
    line-height: 1.8;
    font-size: 14px;
}

.contact-phone {
    font-size: 28px !important;
    color: #8B4513 !important;
    font-weight: 700 !important;
    margin: 10px 0 !important;
}

.contact-hours {
    font-size: 13px !important;
    color: #999 !important;
}

.contact-form {
    background: #f9f7f4;
    border-radius: 20px;
    padding: 40px;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.required {
    color: #d9534f;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #8B4513;
    box-shadow: 0 0 0 3px rgba(139, 69, 19, 0.1);
}

.submit-button {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #8B4513, #A0522D);
    color: white;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 2px;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(139, 69, 19, 0.3);
}

/* =====================================
   フッター
   ===================================== */
.footer {
    background: #2c2c2c;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-size: 28px;
    margin-bottom: 15px;
    color: #D2B48C;
    font-weight: 700;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #D2B48C;
    font-weight: 600;
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #D2B48C;
}

.footer-contact p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 10px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* =====================================
   レスポンシブデザイン
   ===================================== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 48px;
    }

    .philosophy-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .philosophy-features {
        grid-template-columns: repeat(3, 1fr);
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

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

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .section-title {
        font-size: 32px;
    }

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

    .philosophy-features {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 30px;
    }

    .timeline-item {
        padding-left: 90px;
    }

    .timeline-marker {
        width: 60px;
        height: 60px;
    }

    .step-number {
        font-size: 18px;
    }

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

    section {
        padding: 80px 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .cta-button {
        padding: 15px 35px;
        font-size: 14px;
    }

    .timeline-content {
        padding: 25px;
    }
}