:root {
  --cream: #faf3e7;
  --cream-deep: #f2e6d3;
  --terracotta: #c9683b;
  --terracotta-dark: #a94f28;
  --olive: #5c6b47;
  --charcoal: #2b2621;
  --gold: #b08d57;
  --white: #fffdf9;
  --radius: 14px;
  --shadow: 0 8px 24px rgba(43, 38, 33, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Zen Kaku Gothic New", "Noto Sans JP", sans-serif;
  color: var(--charcoal);
  background: var(--cream);
  line-height: 1.8;
}

h1, h2, h3, .brand {
  font-family: "Shippori Mincho", serif;
  font-weight: 600;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 243, 231, 0.94);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(43,38,33,0.08);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  font-size: 1.25rem;
  letter-spacing: 0.04em;
  color: var(--terracotta-dark);
}
.brand span { display: block; font-size: 0.6rem; font-family: "Zen Kaku Gothic New", sans-serif; letter-spacing: 0.2em; color: var(--olive); }
.nav-links {
  display: flex;
  gap: 28px;
  font-size: 0.92rem;
}
.nav-links a { position: relative; padding: 4px 0; }
.nav-links a.active, .nav-links a:hover { color: var(--terracotta-dark); }
.nav-links a.active::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -4px;
  height: 2px; background: var(--terracotta);
}
.header-actions { display: flex; align-items: center; gap: 18px; }
.icon-btn { background: none; border: none; color: var(--charcoal); display: flex; align-items: center; }
.hamburger { display: none; background: none; border: none; }

@media (max-width: 820px) {
  .nav-links { display: none; }
  .hamburger { display: block; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: var(--white);
    padding: 20px 24px;
    gap: 16px;
    box-shadow: var(--shadow);
  }
}

/* hero */
.hero {
  position: relative;
  height: 78vh;
  min-height: 460px;
  display: flex;
  align-items: flex-end;
  background-size: cover;
  background-position: center;
  color: var(--white);
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(43,38,33,0.15) 0%, rgba(43,38,33,0.55) 100%);
}
.hero-content { position: relative; z-index: 2; padding-bottom: 64px; max-width: 680px; }
.hero-eyebrow { letter-spacing: 0.3em; font-size: 0.75rem; text-transform: uppercase; color: var(--cream-deep); margin-bottom: 14px; }
.hero h1 { font-size: clamp(1.8rem, 4vw, 2.9rem); margin: 0 0 18px; line-height: 1.5; }
.hero p { font-size: 1rem; margin: 0 0 26px; opacity: 0.92; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  transition: transform 0.15s ease, opacity 0.15s ease;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--terracotta); color: var(--white); }
.btn-primary:hover { background: var(--terracotta-dark); }
.btn-outline { background: transparent; border-color: currentColor; }
.btn-outline:hover { opacity: 0.75; }
.btn-dark { background: var(--charcoal); color: var(--white); }

/* sections */
section { padding: 88px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-eyebrow { color: var(--terracotta-dark); letter-spacing: 0.25em; font-size: 0.75rem; text-transform: uppercase; margin-bottom: 12px; }
.section-head h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin: 0 0 14px; }
.section-head p { color: #5a5148; font-size: 0.95rem; }

.concept-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.concept-card { text-align: center; padding: 8px; }
.concept-icon {
  width: 62px; height: 62px; margin: 0 auto 18px;
  border-radius: 50%; background: var(--cream-deep);
  display: flex; align-items: center; justify-content: center;
  color: var(--terracotta-dark);
}
.concept-card h3 { font-size: 1.05rem; margin: 0 0 10px; }
.concept-card p { font-size: 0.88rem; color: #5a5148; margin: 0; }

/* products */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.product-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-4px); box-shadow: 0 14px 30px rgba(43,38,33,0.14); }
.product-media { position: relative; aspect-ratio: 4/3; overflow: hidden; background: var(--cream-deep); }
.product-media img { width: 100%; height: 100%; object-fit: cover; }
.product-badge {
  position: absolute; top: 12px; left: 12px;
  background: var(--olive); color: var(--white);
  font-size: 0.72rem; padding: 5px 12px; border-radius: 999px; letter-spacing: 0.03em;
}
.product-body { padding: 20px 20px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.product-body h3 { font-size: 1.02rem; margin: 0; line-height: 1.5; }
.product-desc { font-size: 0.85rem; color: #5a5148; margin: 0; flex: 1; }
.product-price { font-size: 1.05rem; color: var(--terracotta-dark); font-weight: 700; }
.product-body .btn { align-self: flex-start; margin-top: 4px; }

/* filter bar */
.filter-bar {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px; margin-bottom: 40px;
  padding-bottom: 24px; border-bottom: 1px solid rgba(43,38,33,0.1);
}
.filter-chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  border: 1px solid rgba(43,38,33,0.2); background: var(--white);
  padding: 8px 18px; border-radius: 999px; font-size: 0.85rem;
}
.chip.active { background: var(--olive); color: var(--white); border-color: var(--olive); }
.sort-select {
  padding: 10px 16px; border-radius: 999px; border: 1px solid rgba(43,38,33,0.2);
  background: var(--white); font-size: 0.85rem;
}

/* producer teaser */
.producer-teaser {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.producer-teaser img { border-radius: var(--radius); box-shadow: var(--shadow); aspect-ratio: 4/3; object-fit: cover; }
.producer-teaser h2 { font-size: 1.6rem; margin: 0 0 16px; }
.producer-teaser p { color: #5a5148; margin: 0 0 22px; }

/* region badges */
.region-strip { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.region-pill {
  background: var(--white); border: 1px solid rgba(43,38,33,0.12);
  padding: 10px 22px; border-radius: 999px; font-size: 0.9rem;
  display: flex; align-items: center; gap: 8px;
}
.region-pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--terracotta); }

/* newsletter */
.newsletter { background: var(--charcoal); color: var(--cream); border-radius: var(--radius); padding: 56px 40px; text-align: center; }
.newsletter h2 { color: var(--white); margin: 0 0 12px; }
.newsletter p { color: rgba(250,243,231,0.75); margin: 0 0 26px; }
.newsletter-form { display: flex; gap: 10px; max-width: 420px; margin: 0 auto; }
.newsletter-form input {
  flex: 1; padding: 13px 18px; border-radius: 999px; border: none; font-size: 0.9rem;
}

/* footer */
.site-footer { background: var(--cream-deep); padding: 56px 0 28px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 36px; }
.footer-col h4 { font-size: 0.9rem; margin: 0 0 16px; color: var(--terracotta-dark); }
.footer-col a, .footer-col p { display: block; font-size: 0.85rem; color: #5a5148; margin-bottom: 10px; }
.footer-bottom {
  border-top: 1px solid rgba(43,38,33,0.12); padding-top: 20px;
  font-size: 0.78rem; color: #8a7f74; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}

/* breadcrumb */
.breadcrumb { font-size: 0.82rem; color: #8a7f74; padding: 20px 0 0; }
.breadcrumb a:hover { color: var(--terracotta-dark); }

/* product detail */
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; padding: 36px 0 20px; }
.gallery-main { border-radius: var(--radius); overflow: hidden; aspect-ratio: 1/1; box-shadow: var(--shadow); margin-bottom: 14px; }
.gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs { display: flex; gap: 10px; }
.gallery-thumbs img {
  width: 74px; height: 74px; object-fit: cover; border-radius: 10px; cursor: pointer;
  border: 2px solid transparent; opacity: 0.75;
}
.gallery-thumbs img.active { border-color: var(--terracotta); opacity: 1; }

.detail-info h1 { font-size: 1.5rem; margin: 0 0 10px; }
.detail-price { font-size: 1.4rem; color: var(--terracotta-dark); font-weight: 700; margin-bottom: 20px; }
.option-group { margin-bottom: 24px; }
.option-group > label { font-size: 0.85rem; font-weight: 700; display: block; margin-bottom: 10px; }
.flavor-options { display: flex; gap: 10px; flex-wrap: wrap; }
.flavor-btn {
  border: 1px solid rgba(43,38,33,0.2); background: var(--white);
  padding: 10px 18px; border-radius: 999px; font-size: 0.85rem;
}
.flavor-btn.active { background: var(--terracotta); color: var(--white); border-color: var(--terracotta); }
.qty-control { display: flex; align-items: center; gap: 14px; }
.qty-control button {
  width: 34px; height: 34px; border-radius: 50%; border: 1px solid rgba(43,38,33,0.2);
  background: var(--white); font-size: 1.1rem;
}
.add-cart-row { display: flex; align-items: center; gap: 16px; margin-top: 10px; }
.toast {
  position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--charcoal); color: var(--white); padding: 14px 26px; border-radius: 999px;
  font-size: 0.88rem; opacity: 0; pointer-events: none; transition: all 0.25s ease; z-index: 200;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.tabs { margin-top: 20px; }
.tab-nav { display: flex; gap: 8px; border-bottom: 1px solid rgba(43,38,33,0.12); margin-bottom: 20px; }
.tab-btn { background: none; border: none; padding: 12px 4px; margin-right: 24px; font-size: 0.9rem; color: #8a7f74; position: relative; }
.tab-btn.active { color: var(--charcoal); font-weight: 700; }
.tab-btn.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--terracotta); }
.tab-panel { display: none; font-size: 0.9rem; color: #5a5148; }
.tab-panel.active { display: block; }

/* story page */
.producer-card {
  display: grid; grid-template-columns: 320px 1fr; gap: 36px; align-items: center;
  background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 28px; margin-bottom: 32px;
}
.producer-card img { border-radius: 10px; aspect-ratio: 4/3; object-fit: cover; }
.producer-card h3 { margin: 0 0 4px; font-size: 1.2rem; }
.producer-card .role { color: var(--terracotta-dark); font-size: 0.82rem; margin-bottom: 12px; display: block; }
.producer-card p { color: #5a5148; font-size: 0.9rem; margin: 0 0 14px; }

/* about table */
.overview-table { width: 100%; border-collapse: collapse; background: var(--white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.overview-table tr { border-bottom: 1px solid rgba(43,38,33,0.08); }
.overview-table tr:last-child { border-bottom: none; }
.overview-table th, .overview-table td { text-align: left; padding: 18px 24px; font-size: 0.9rem; }
.overview-table th { width: 200px; color: var(--terracotta-dark); background: var(--cream-deep); font-weight: 600; }

.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 20px; }

@media (max-width: 900px) {
  .concept-grid, .product-grid, .related-grid { grid-template-columns: 1fr; }
  .producer-teaser { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .detail-grid { grid-template-columns: 1fr; gap: 28px; }
  .producer-card { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
}