@charset "UTF-8";
/* ==========================================================================
   麩太 コーポレートサイト トップページ  style.css
   構成:
     1. Design Tokens (CSS Custom Properties)
     2. Reset / Base
     3. Utility
     4. Header
     5. Hero
     6. About (麩太について)
     7. Products (おすすめ商品)
     8. Commitment (こだわり)
     9. History (歴史)
    10. News (お知らせ)
    11. Contact (お問い合わせ)
    12. Footer
   レスポンシブ対応の詳細は responsive.css を参照。
   ========================================================================== */

/* ---------------------------------------------------------------------
   1. Design Tokens
   ------------------------------------------------------------------- */
:root{
  /* Color */
  --color-bg:        #F5F1E6; /* 生成り・和紙 */
  --color-bg-soft:   #EEE7D6; /* カード等の背景 */
  --color-surface:   #FFFDF8; /* 白に近いカード面 */
  --color-ink:       #2B2420; /* 本文・見出し（漆黒褐色） */
  --color-ink-soft:  #5B5147; /* 補足テキスト */
  --color-green:     #37503F; /* メインアクセント（笹の葉色） */
  --color-green-dark:#243830;
  --color-gold:      #A9803F; /* サブアクセント（金糸色） */
  --color-gold-soft: #C9A15E;
  --color-line:      #DDD3BC; /* 罫線 */
  --color-red:        #8B3A2B; /* 差し色（印判） */

  /* Type */
  --font-display: "Shippori Mincho", "Noto Serif JP", serif;
  --font-body: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;

  /* Layout */
  --max-width: 1120px;
  --gap: clamp(1rem, 2vw, 2rem);
  --radius-l: 18px;
  --radius-m: 10px;
  --shadow-soft: 0 8px 30px rgba(43, 36, 32, 0.08);
  --shadow-hover: 0 16px 40px rgba(43, 36, 32, 0.14);

  --header-h: 84px;
}

/* ---------------------------------------------------------------------
   2. Reset / Base
   ------------------------------------------------------------------- */
*, *::before, *::after{ box-sizing: border-box; }

html{
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body, h1, h2, h3, h4, p, ul, ol, dl, dd, figure{ margin: 0; }
ul, ol{ list-style: none; padding: 0; }
img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
button{ font: inherit; background: none; border: 0; cursor: pointer; color: inherit; }

body{
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.9;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4{
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.5;
}

/* フォーカスリング（アクセシビリティ対応） */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible{
  outline: 3px solid var(--color-gold);
  outline-offset: 3px;
  border-radius: 4px;
}

/* スキップリンク */
.skip-link{
  position: absolute;
  left: 1rem;
  top: -60px;
  background: var(--color-green);
  color: #fff;
  padding: 0.7em 1.2em;
  border-radius: var(--radius-m);
  z-index: 1000;
  transition: top 0.2s ease;
}
.skip-link:focus{ top: 1rem; }

/* ---------------------------------------------------------------------
   3. Utility
   ------------------------------------------------------------------- */
.inner{
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

.section{
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
}
.section--soft{ background: var(--color-bg-soft); }
.section--dark{
  background: var(--color-green);
  color: #F5F1E6;
}

.section-head{
  text-align: center;
  max-width: 640px;
  margin: 0 auto clamp(2.5rem, 5vw, 3.5rem);
}
.section-head__eyebrow{
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-display);
  color: var(--color-gold);
  font-size: 0.9rem;
  letter-spacing: 0.3em;
  margin-bottom: 0.9em;
}
.section-head__eyebrow .knot{ width: 22px; height: 22px; }
.section-head h2{
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  color: var(--color-ink);
}
.section--dark .section-head h2{ color: #FBF8F0; }
.section-head p{
  margin-top: 1em;
  color: var(--color-ink-soft);
}
.section--dark .section-head p{ color: #D8DFD8; }

.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.95em 2.1em;
  border-radius: 999px;
  font-family: var(--font-display);
  font-size: 0.98rem;
  letter-spacing: 0.08em;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color .25s ease;
  white-space: nowrap;
}
.btn--primary{
  background: var(--color-gold);
  color: #2B2420;
  box-shadow: var(--shadow-soft);
}
.btn--primary:hover{
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  background: var(--color-gold-soft);
}
.btn--outline{
  border: 1.5px solid rgba(245,241,230,0.8);
  color: #FBF8F0;
}
.btn--outline:hover{
  background: rgba(245,241,230,0.12);
  transform: translateY(-3px);
}
.btn--ink{
  border: 1.5px solid var(--color-ink);
  color: var(--color-ink);
}
.btn--ink:hover{
  background: var(--color-ink);
  color: #F5F1E6;
  transform: translateY(-3px);
}
.btn--shop{
  background: #8A6A3F;
  color: #FFFFFF;
  box-shadow: var(--shadow-soft);
}
.btn--shop:hover{
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  background: #A17D4F;
}

.knot{
  display: inline-block;
  color: currentColor;
}

/* スクロールで現れるフェードイン（JSでis-visible付与、reduced-motion配慮） */
.reveal{
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.is-visible{
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .reveal{ opacity: 1; transform: none; transition: none; }
  .btn, .card{ transition: none !important; }
}

/* ---------------------------------------------------------------------
   4. Header
   ------------------------------------------------------------------- */
.site-header{
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 500;
  background: rgba(245, 241, 230, 0.86);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--color-line);
  transition: box-shadow 0.3s ease;
}
.site-header.is-scrolled{ box-shadow: 0 6px 24px rgba(43,36,32,0.08); }

.site-header .inner{
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand{
  display: flex;
  align-items: center;
  gap: 0.65em;
}
.brand .knot{ width: 34px; height: 34px; flex-shrink: 0; color: var(--color-green); }
.brand__text{ display: flex; flex-direction: column; line-height: 1.3; }
.brand__name{
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.12em;
  color: var(--color-ink);
}
.brand__sub{
  font-size: 0.62rem;
  letter-spacing: 0.24em;
  color: var(--color-ink-soft);
}
.brand_logo{
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  object-fit: contain;
  display: block;
}

.gnav{
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2.1rem);
}
.gnav a{
  position: relative;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  padding: 0.4em 0.1em;
}
.gnav a::after{
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 2px;
  background: var(--color-gold);
  transition: right 0.25s ease;
}
.gnav a:hover::after, .gnav a:focus-visible::after{ right: 0; }

.header-cta{ display:flex; align-items:center; gap: 0.9rem; }
.header-cta .btn{ padding: 0.7em 1.5em; font-size: 0.88rem; }

.nav-toggle{
  display: none;
  width: 44px; height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: 50%;
}
.nav-toggle span{
  width: 22px; height: 2px; background: var(--color-ink);
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(8px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-8px) rotate(-45deg); }

/* ---------------------------------------------------------------------
   5. Hero
   ------------------------------------------------------------------- */
.hero{
  position: relative;
  margin-top: var(--header-h);
  min-height: min(88vh, 780px);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--color-ink);
}
.hero__media{
  position: absolute; inset: 0;
}
.hero__media picture{
  display: block; width: 100%;
  height: 100%;
}
.hero__media img{
  width: 100%; height: 100%; object-fit: cover; object-position: 78% 70%;
}
.hero__media::after{
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(0deg, rgba(20,17,13,0.86) 0%, rgba(20,17,13,0.55) 42%, rgba(20,17,13,0.22) 68%, rgba(20,17,13,0.35) 100%),
    linear-gradient(90deg, rgba(20,17,13,0.55) 0%, rgba(20,17,13,0.05) 55%);
}
.hero__inner{
  position: relative;
  z-index: 2;
  width: 100%;
  padding-block: clamp(2.5rem, 8vw, 5rem);
  color: #FBF8F0;
}
.hero__eyebrow{
  display: flex;
  align-items: center;
  gap: 0.8em;
  font-family: var(--font-display);
  letter-spacing: 0.3em;
  font-size: 0.85rem;
  color: var(--color-gold-soft);
  margin-bottom: 1.4em;
}
.hero__eyebrow .rule{ width: 40px; height: 1px; background: var(--color-gold-soft); }

.hero h1{
  font-size: clamp(2.1rem, 5.6vw, 3.6rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  max-width: 16em;
}
.hero h1 em{
  font-style: normal;
  display: block;
  color: var(--color-gold-soft);
  font-size: 1.15em;
  margin-top: 0.25em;
}

.hero__lead{
  margin-top: 1.4em;
  max-width: 34em;
  color: #E7E1D2;
  font-size: 0.98rem;
}

.hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.3em;
}

.hero__scroll{
  position: absolute;
  right: clamp(1.25rem, 4vw, 2.5rem);
  bottom: 1.6rem;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 0.6em;
  color: #E7E1D2;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
}
.hero__scroll .line{
  width: 1px; height: 34px;
  background: linear-gradient(#E7E1D2, transparent);
  animation: scrollLine 2.2s ease-in-out infinite;
}
@keyframes scrollLine{
  0%{ transform: scaleY(0); transform-origin: top; }
  50%{ transform: scaleY(1); transform-origin: top; }
  50.1%{ transform-origin: bottom; }
  100%{ transform: scaleY(0); transform-origin: bottom; }
}

@media(max-width: 768px){
  .hero__media img{
    object-position: 50% 50%;
  }
}

/* ---------------------------------------------------------------------
   6. About（麩太について）
   ------------------------------------------------------------------- */
.about-grid{
  display: grid;
  grid-template-columns: minmax(0,1fr) minmax(0,1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.about-media{
  position: relative;
  border-radius: var(--radius-l);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}
.about-media img{ width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; }
.about-media__tag{
  position: absolute;
  left: 1.1rem; bottom: 1.1rem;
  background: rgba(245,241,230,0.92);
  color: var(--color-ink);
  padding: 0.6em 1.1em;
  border-radius: 999px;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  font-family: var(--font-display);
}

.about-text h2{
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: 0.9em;
}
.about-text p{ color: var(--color-ink-soft); margin-bottom: 1.2em; }
.about-facts{
  margin-top: 1.6em;
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 1.4rem 2rem;
}
.about-facts div dt{
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-green);
}
.about-facts div dd{
  font-size: 0.76rem;
  color: var(--color-ink-soft);
  letter-spacing: 0.06em;
  margin-top: 0.2em;
}

/* ---------------------------------------------------------------------
   7. Products（おすすめ商品）
   ------------------------------------------------------------------- */
.product-grid{
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: clamp(1.1rem, 2.4vw, 1.8rem);
}
.card{
  background: var(--color-surface);
  border-radius: var(--radius-l);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.card:hover{
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.card__media{ aspect-ratio: 4/3; overflow: hidden; background: var(--color-bg-soft); }
.card__media img{ width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.card:hover .card__media img{ transform: scale(1.06); }
.card__body{ padding: 1.3rem 1.3rem 1.5rem; display:flex; flex-direction:column; gap:0.6em; flex: 1; }
.card__tag{
  align-self: flex-start;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--color-gold);
  border: 1px solid var(--color-gold);
  padding: 0.25em 0.8em;
  border-radius: 999px;
}
.card__title{ font-family: var(--font-display); font-size: 1.15rem; }
.card__desc{ font-size: 0.84rem; color: var(--color-ink-soft); flex: 1; }
.card__link{
  margin-top: 0.4em;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--color-green);
  display: inline-flex; align-items: center; gap: 0.4em;
}
.card__link .arrow{ transition: transform 0.25s ease; }
.card:hover .card__link .arrow{ transform: translateX(4px); }

.product-more{ text-align: center; margin-top: clamp(2rem, 4vw, 3rem); }

/* ---------------------------------------------------------------------
   8. Commitment（こだわり）
   ------------------------------------------------------------------- */
.commitment{
  display: grid;
  grid-template-columns: auto minmax(0,1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
}
.commitment-seal{
  width: 120px; height: 120px;
  border-radius: 50%;
  border: 1.5px solid var(--color-gold-soft);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: 2.6rem;
  color: var(--color-gold-soft);
  flex-shrink: 0;
  justify-self: center;
}
.commitment blockquote{
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.1vw, 1.35rem);
  line-height: 2;
  color: #FBF8F0;
  position: relative;
  padding-left: 1.4em;
  border-left: 2px solid var(--color-gold-soft);
}
.commitment blockquote p + p{ margin-top: 0.9em; }
.commitment cite{
  display: block;
  margin-top: 1.2em;
  font-style: normal;
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  color: var(--color-gold-soft);
}

/* ---------------------------------------------------------------------
   9. History（歴史）
   ------------------------------------------------------------------- */
.timeline{
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.timeline::before{
  content: "";
  position: absolute;
  left: 0; right: 0; top: 14px;
  height: 1px;
  background: var(--color-line);
}
.timeline-item{ position: relative; padding-top: 2.6rem; }
.timeline-item::before{
  content: "";
  position: absolute;
  top: 6px; left: 0;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 3px solid var(--color-gold);
}
.timeline-item time{
  display: block;
  font-family: var(--font-display);
  color: var(--color-green);
  font-size: 1.05rem;
  margin-bottom: 0.5em;
}
.timeline-item p{ font-size: 0.86rem; color: var(--color-ink-soft); }

/* ---------------------------------------------------------------------
   10. News（お知らせ）
   ------------------------------------------------------------------- */
.news-list{
  border-top: 1px solid var(--color-line);
  max-width: 820px;
  margin: 0 auto;
}
.news-item{
  display: grid;
  grid-template-columns: 9em auto 1fr;
  align-items: center;
  gap: 1.2rem;
  padding: 1.3rem 0.4rem;
  border-bottom: 1px solid var(--color-line);
  transition: background 0.2s ease;
}
a.news-item:hover{ background: rgba(169,128,63,0.08); }
.news-item time{ font-size: 0.82rem; color: var(--color-ink-soft); letter-spacing: 0.04em; }
.news-item .tag{
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--color-green);
  border: 1px solid var(--color-green);
  padding: 0.25em 0.7em;
  border-radius: 999px;
  justify-self: start;
}
.news-item .title{ font-size: 0.92rem; }
.news-item .title a{
  color: var(--color-green);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}
.news-item .title a:hover{
  opacity: 0.7;
}

.news-more{ text-align: center; margin-top: 2.4rem; }

/* ---------------------------------------------------------------------
   11. Contact（お問い合わせ）
   ------------------------------------------------------------------- */
.contact-panel{
  background: var(--color-surface);
  border-radius: var(--radius-l);
  box-shadow: var(--shadow-soft);
  padding: clamp(1.8rem, 5vw, 3.2rem);
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
}
.contact-info h3{ font-size: 1.3rem; margin-bottom: 0.8em; }
.contact-info p{ color: var(--color-ink-soft); margin-bottom: 1.4em; }
.contact-detail{ display: grid; gap: 0.9em; }
.contact-detail__row{ display: flex; gap: 0.9em; align-items: flex-start; font-size: 0.9rem; }
.contact-detail__row .ico{ width: 20px; height: 20px; flex-shrink: 0; margin-top: 0.15em; color: var(--color-green); }
.contact-actions{
  display: flex; flex-direction: column; justify-content: center; gap: 1rem;
  border-left: 1px solid var(--color-line);
  padding-left: clamp(1.5rem, 4vw, 2.5rem);
}
.contact-actions .btn{ width: 100%; }
.contact-actions p{ font-size: 0.78rem; color: var(--color-ink-soft); }

.map-frame{
  width: 100%;
  margin: 2.4em auto 0;
  border-radius: var(--radius-l);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  max-width: 780px;
  aspect-ratio: 4/3;
}
.map-frame iframe{ width: 100%; height: 100%; border: 0; display: block; }

/* ---------------------------------------------------------------------
   12. Footer
   ------------------------------------------------------------------- */
.site-footer{
  background: var(--color-ink);
  color: #E7E1D2;
  padding: clamp(2.5rem, 5vw, 3.5rem) 0 1.6rem;
}
.footer-top{
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  justify-content: space-between;
  padding-bottom: 2.2rem;
  border-bottom: 1px solid rgba(231,225,210,0.18);
}
.footer-brand{ display: flex; align-items: center; gap: 0.7em; }
.footer-brand .knot{ width: 28px; height: 28px; color: var(--color-gold-soft); }
.footer-brand__name{ font-family: var(--font-display); font-size: 1.2rem; letter-spacing: 0.1em; }
.footer-brand_logo{
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  object-fit: contain;
  display: block;
}

.footer-nav{ display: flex; flex-wrap: wrap; gap: 0.6rem 1.6rem; }
.footer-nav a{ font-size: 0.85rem; color: #D8D2C2; }
.footer-nav a:hover{ color: var(--color-gold-soft); }
.footer-nav .btn--shop{
  padding: 0.55em 1.2em;
  font-size: 0.82rem;
  color: #FFFFFF;
  background: #8A6A3F;
}

.footer-meta{
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.8rem;
  padding-top: 1.6rem;
  font-size: 0.76rem;
  color: #A79C89;
}