/* ============================================================
   glaze2 — CITOLA（ナチュラルコスメ系・淡色×エレガント）
   構成: ヘッダー / FV / Concept / Products 2ライン / 
         Sustainability / Footer
   ============================================================ */
:root {
  --c-base: #f4f1ec;
  --c-ink: #3c3a34;
  --c-ink-sub: #77736a;
  --c-ocean: #7ba7b8;
  --c-land:  #a4916c;
  --c-dark:  #2c2a25;
  --c-line:  #ddd8cf;
  --serif: "Cormorant Garamond", serif;
  --sans: "Noto Sans JP", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  color: var(--c-ink);
  background: var(--c-base);
  line-height: 2;
  -webkit-font-smoothing: antialiased;
}
ul { list-style: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* 出現アニメ */
.section, .product-card, .sustain-point {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .6s ease, transform .6s ease;
}
.section.is-visible, .product-card.is-visible, .sustain-point.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .section, .product-card, .sustain-point { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ── ヘッダー ── */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 6vw;
  background: rgba(244, 241, 236, .96);
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--c-line);
}
.site-header__logo {
  font-family: var(--serif);
  font-size: 1.7rem;
  letter-spacing: .3em;
}
.site-header__nav ul { display: flex; gap: 34px; }
.site-header__nav a {
  font-family: var(--serif);
  font-size: .9rem;
  letter-spacing: .12em;
  transition: opacity .2s;
}
.site-header__nav a:hover { opacity: .55; }

/* ── FV ── */
.fv {
  position: relative;
  min-height: 76svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, #e8e1d4, #d7dfe0 55%, #cdd8d8);
  overflow: hidden;
}
.fv__inner { padding: 80px 24px; }
.fv__en {
  font-family: var(--serif);
  font-size: .82rem;
  letter-spacing: .4em;
  color: var(--c-ink-sub);
  margin-bottom: 22px;
}
.fv__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.7rem, 4.2vw, 3rem);
  line-height: 1.7;
  margin-bottom: 20px;
}
.fv__lead { font-size: .92rem; color: var(--c-ink-sub); letter-spacing: .05em; }

/* ── セクション共通 ── */
.section { padding: 110px 6vw; }
.section-en {
  font-family: var(--serif);
  font-size: .85rem;
  letter-spacing: .35em;
  color: var(--c-ink-sub);
  text-align: center;
  margin-bottom: 10px;
}
.section-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.5rem, 3.4vw, 2.3rem);
  text-align: center;
  line-height: 1.8;
  margin-bottom: 46px;
}
.btn {
  display: inline-block;
  padding: .7em 2.2em;
  border: 1px solid var(--c-ink);
  border-radius: 999px;
  font-family: var(--serif);
  font-size: .85rem;
  letter-spacing: .2em;
  transition: background .2s, color .2s;
}
.btn--ghost:hover { background: var(--c-ink); color: var(--c-base); }
.section--concept { text-align: center; }
.section--concept .btn { margin-top: 24px; }

/* ── Concept 本文 ── */
.concept__body { max-width: 580px; margin: 0 auto 30px; }
.concept__p { margin-bottom: 1.4em; font-size: .94rem; color: var(--c-ink-sub); }
.concept__p--last {
  font-family: var(--serif);
  color: var(--c-ink);
  font-size: 1.1rem;
  letter-spacing: .06em;
}

/* ── Products 2ライン ── */
.section--products { background: #ecebe6; }
.product-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  max-width: 1060px;
  margin: 0 auto 80px;
}
.product-card:last-of-type { margin-bottom: 0; }
.product-card--rev .product-card__visual { order: 2; }
.product-card--rev .product-card__body { order: 1; }
.product-card__visual {
  aspect-ratio: 4 / 3;
  border-radius: 18px;
  display: flex;
  align-items: flex-end;
  padding: 26px;
  box-shadow: 0 14px 44px rgba(44, 42, 37, .14);
}
.product-card__visual--ocean {
  background: linear-gradient(150deg, #9cc3cf, #6f9bab 60%, #58818f);
  color: #fff;
}
.product-card__visual--land {
  background: linear-gradient(150deg, #c3b293, #a8916b 65%, #8d7954);
  color: #fff;
}
.product-card__line {
  font-family: var(--serif);
  font-size: 1.1rem;
  letter-spacing: .24em;
}
.product-card__name { font-family: var(--serif); font-size: 1.7rem; font-weight: 500; margin-bottom: 8px; }
.product-card__tag { font-size: .88rem; color: var(--c-ink); margin-bottom: 14px; letter-spacing: .08em; }
.product-card__desc { font-size: .92rem; color: var(--c-ink-sub); }

/* ── Sustainability ── */
.sustain__lead {
  text-align: center;
  font-size: .94rem;
  max-width: 560px;
  margin: -20px auto 44px;
}
.sustain__points {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
  max-width: 860px;
  margin: 0 auto 36px;
}
.sustain-point {
  background: #fff;
  border-radius: 14px;
  padding: 30px 28px;
  box-shadow: 0 8px 26px rgba(44, 42, 37, .07);
}
.sustain-point b { font-size: 1rem; display: block; margin-bottom: 8px; }
.sustain-point p { font-size: .88rem; color: var(--c-ink-sub); }
.section--sustain { text-align: center; }

/* ── フッター ── */
.footer {
  background: var(--c-dark);
  color: #f4f1ec;
  text-align: center;
  padding: 60px 24px 30px;
}
.footer__logo { font-family: var(--serif); font-size: 1.5rem; letter-spacing: .3em; margin-bottom: 20px; }
.footer__nav { display: flex; justify-content: center; gap: 28px; margin-bottom: 24px; }
.footer__nav a { font-family: var(--serif); font-size: .82rem; letter-spacing: .12em; opacity: .8; }
.footer__nav a:hover { opacity: 1; }
.footer__copy { font-size: .7rem; opacity: .55; }

/* ── SPレスポンシブ ── */
@media (max-width: 760px) {
  .site-header { padding: 12px 5vw; flex-wrap: wrap; }
  .site-header__logo { font-size: 1.3rem; letter-spacing: .22em; }
  .site-header__nav { width: 100%; overflow-x: auto; margin-top: 8px; -webkit-overflow-scrolling: touch; }
  .site-header__nav ul { gap: 18px; }
  .site-header__nav a { font-size: .78rem; white-space: nowrap; }
  .section { padding: 70px 6vw; }
  .product-card { grid-template-columns: 1fr; gap: 22px; margin-bottom: 56px; }
  .product-card--rev .product-card__visual { order: 1; }
  .product-card--rev .product-card__body { order: 2; }
  .sustain__points { grid-template-columns: 1fr; max-width: 480px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}