/* ==========================================================================
   1. デザインシステム & カスタムプロパティ (変数の定義)
   ========================================================================== */
:root {
  /* カラーパレット */
  --color-primary: #d9822b;       /* 暖かみのある上品な蜂蜜色 */
  --color-primary-dark: #b86212;  /* ボタンのホバー時など */
  --color-primary-light: #fff8ee; /* 極めて薄い蜂蜜色（背景用） */
  
  --color-secondary: #3d2b1f;     /* 落ち着いたダークブラウン（文字や枠線） */
  --color-forest: #224229;        /* 誠実さと自然を表すフォレストグリーン */
  --color-forest-light: #e8f0eb;  /* 薄いグリーン（背景用） */
  
  --color-bg-light: #faf8f5;      /* 暖かみのあるオフホワイト */
  --color-bg-white: #ffffff;      
  
  --color-text-dark: #2c2520;     /* 柔らかい黒 */
  --color-text-muted: #6b6055;    /* 補助テキスト用のグレーブラウン */
  
  /* フォント指定 */
  --font-serif: "Noto Serif JP", Georgia, serif;
  --font-sans: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* レイアウト */
  --container-width: 1100px;
  --transition-smooth: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  --shadow-subtle: 0 4px 20px rgba(61, 43, 31, 0.05);
  --shadow-medium: 0 10px 30px rgba(61, 43, 31, 0.08);
}

/* ==========================================================================
   2. 基本リセット & 共通スタイル
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg-light);
  color: var(--color-text-dark);
  line-height: 1.8;
  letter-spacing: 0.05em;
}

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

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

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 30px;
}

/* ==========================================================================
   3. コンポーネント (ボタン、セクション見出しなど)
   ========================================================================== */
.section-title {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 600;
  text-align: center;
  color: var(--color-forest);
  margin-bottom: 10px;
  position: relative;
}

.section-title::after {
  content: "";
  display: block;
  width: 40px;
  height: 2px;
  background-color: var(--color-primary);
  margin: 15px auto 0;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 60px;
}

/* ボタン */
.btn {
  display: inline-block;
  padding: 14px 36px;
  font-size: 0.95rem;
  font-weight: 500;
  text-align: center;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition-smooth);
  letter-spacing: 0.1em;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-bg-white);
  box-shadow: 0 4px 15px rgba(217, 130, 43, 0.2);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(217, 130, 43, 0.3);
}

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

.btn-secondary:hover {
  background-color: var(--color-secondary);
  color: var(--color-bg-white);
  transform: translateY(-2px);
}

/* ==========================================================================
   4. ヘッダー (Header)
   ========================================================================== */
.site-header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 25px 0;
  background-color: transparent;
}

.header-container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-secondary);
}

.nav-menu {
  display: flex;
  gap: 30px;
}

.nav-menu a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-secondary);
  position: relative;
  padding: 5px 0;
}

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

.nav-menu a:hover {
  color: var(--color-primary);
}

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

/* ==========================================================================
   5. ヒーローセクション (Hero Section)
   ========================================================================== */
.hero-section {
  position: relative;
  height: 90vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: url('images/hero-bg.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--color-bg-white);
  text-align: center;
  padding-top: 80px;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(61, 43, 31, 0.45) 0%,
    rgba(34, 66, 41, 0.4) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  padding: 0 20px;
}

.hero-sub {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  letter-spacing: 0.2em;
  margin-bottom: 20px;
  opacity: 0.9;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 25px;
  text-shadow: 0 2px 15px rgba(0, 0, 0, 0.4);
}

.hero-description {
  font-size: 1.05rem;
  margin-bottom: 40px;
  opacity: 0.95;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

/* ==========================================================================
   6. プロフィール・イントロダクション (Intro Section)
   ========================================================================== */
.intro-section {
  padding: 100px 0;
  background-color: var(--color-bg-white);
}

.intro-box {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.intro-greeting {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--color-secondary);
  line-height: 1.6;
  margin-bottom: 35px;
}

.intro-text {
  font-size: 1.05rem;
  color: var(--color-text-dark);
  text-align: left;
  line-height: 2;
}

/* ==========================================================================
   7. ストーリーセクション (Story Section)
   ========================================================================== */
.story-section {
  padding: 100px 0;
  background-color: var(--color-primary-light);
}

.story-timeline {
  display: flex;
  flex-direction: column;
  gap: 80px;
  margin-top: 40px;
}

.story-card {
  display: flex;
  align-items: center;
  gap: 60px;
  background-color: var(--color-bg-white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-subtle);
  transition: var(--transition-smooth);
}

.story-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.story-card.reverse {
  flex-direction: row-reverse;
}

.story-image {
  flex: 1.1;
  overflow: hidden;
  height: 380px;
}

.story-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.story-card:hover .story-image img {
  transform: scale(1.03);
}

.story-content {
  flex: 1;
  padding: 40px 50px;
}

.story-num {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: 4px;
  margin-bottom: 20px;
  letter-spacing: 0.15em;
}

.story-content h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-forest);
  margin-bottom: 20px;
}

.story-content p {
  font-size: 0.98rem;
  color: var(--color-text-dark);
  margin-bottom: 15px;
}

.story-subtext {
  font-size: 0.9rem !important;
  color: var(--color-text-muted) !important;
  line-height: 1.7;
}

.story-quote {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-primary);
  border-left: 3px solid var(--color-primary);
  padding-left: 15px;
  margin: 25px 0;
  font-style: italic;
}

/* ==========================================================================
   8. 品質とこだわりセクション (Quality Section)
   ========================================================================== */
.quality-section {
  padding: 100px 0;
  background-image: linear-gradient(rgba(34, 66, 41, 0.9), rgba(34, 66, 41, 0.9)), url('images/hero-bg.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: var(--color-bg-white);
  text-align: center;
}

.quality-card {
  max-width: 800px;
  margin: 0 auto;
}

.quality-card h2 {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 500;
  line-height: 1.5;
  margin-bottom: 30px;
}

.quality-card p {
  font-size: 1.05rem;
  line-height: 2;
  opacity: 0.9;
  max-width: 650px;
  margin: 0 auto 30px;
}

.quality-wish {
  font-family: var(--font-serif);
  font-size: 1.15rem !important;
  color: var(--color-primary);
  font-weight: 600;
  margin-top: 40px !important;
  opacity: 1 !important;
}

/* ==========================================================================
   9. 商品紹介セクション (Products Section)
   ========================================================================== */
.products-section {
  padding: 120px 0;
  background-color: var(--color-bg-white);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  margin-bottom: 50px;
}

.product-card {
  background-color: var(--color-bg-light);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(61, 43, 31, 0.05);
  transition: var(--transition-smooth);
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
}

.product-image-container {
  height: 320px;
  overflow: hidden;
  position: relative;
  background-color: #f3ece5;
}

.product-image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

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

.product-info {
  padding: 40px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.product-origin {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-forest);
  background-color: var(--color-forest-light);
  padding: 4px 10px;
  border-radius: 20px;
  align-self: flex-start;
  margin-bottom: 15px;
  letter-spacing: 0.1em;
}

.product-name {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 15px;
  line-height: 1.4;
}

.product-desc {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 25px;
  flex-grow: 1;
}

.product-price {
  margin-top: auto;
  margin-bottom: 30px;
  padding-top: 20px;
  border-top: 1px solid rgba(61, 43, 31, 0.08);
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
}

.price-value {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-secondary);
}

.price-unit {
  font-size: 0.9rem;
  color: var(--color-secondary);
  margin-right: 15px;
}

.product-qty {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  background-color: rgba(61, 43, 31, 0.04);
  padding: 2px 8px;
  border-radius: 4px;
}

.product-info .btn {
  width: 100%;
}

.shop-notice {
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   10. フッター (Footer)
   ========================================================================== */
.site-footer {
  background-color: var(--color-secondary);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0;
  font-size: 0.85rem;
}

.footer-bottom {
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 30px;
  margin-top: 10px;
}

/* ==========================================================================
   11. アニメーション演出用 (Fade-in on scroll)
   ========================================================================== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ==========================================================================
   12. レスポンシブ対応 (Media Queries)
   ========================================================================== */
@media (max-width: 992px) {
  .story-card, .story-card.reverse {
    flex-direction: column;
    gap: 0;
  }
  
  .story-image {
    width: 100%;
    height: 300px;
  }
  
  .story-content {
    padding: 35px 30px;
  }
  
  .product-grid {
    grid-template-columns: 1fr;
    max-width: 550px;
    margin: 0 auto 40px;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
  
  .site-header {
    position: static;
    background-color: var(--color-bg-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 15px 0;
  }
  
  .header-container {
    flex-direction: column;
    gap: 15px;
  }
  
  .hero-section {
    height: calc(100vh - 80px);
    min-height: auto;
    padding-top: 0;
  }
  
  .hero-title {
    font-size: 2.2rem;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
  
  .intro-section, .story-section, .quality-section, .products-section {
    padding: 60px 0;
  }
  
  .intro-greeting {
    font-size: 1.4rem;
  }
}