/* ===== 汐騒蒸溜所 共有スタイル ===== */
:root {
  --bg: #f4f1ea;
  --fg: #15212b;
  --muted: #5d6b73;
  --accent: #1f4e5f;
  --accent-2: #7fa6a1;
  --surface: #e9e3d6;
  --line: #cdc6b6;

  --serif: "Yu Mincho", "游明朝", "YuMincho", "Noto Serif JP", "Hiragino Mincho ProN", serif;
  --sans: "Helvetica Neue", "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif;

  --sp-1: .5rem;
  --sp-2: 1rem;
  --sp-3: 1.75rem;
  --sp-4: 3rem;
  --sp-5: 5rem;
  --sp-6: 8rem;

  --maxw: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--fg); }

h1, h2, h3 { font-weight: 600; line-height: 1.4; letter-spacing: .02em; }

/* ラベル・数値は sans */
.label, .nav a, .btn, .eyebrow, .meta, .tasting th, .footer-nav a {
  font-family: var(--sans);
}

/* ===== レイアウト共通 ===== */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--sp-3); }

section { padding: var(--sp-6) 0; }
@media (max-width: 720px) { section { padding: var(--sp-5) 0; } }

.eyebrow {
  font-size: .72rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin: 0 0 var(--sp-2);
}

.section-title {
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  margin: 0 0 var(--sp-3);
}

.lead {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--fg);
  max-width: 38em;
}

p { margin: 0 0 var(--sp-2); }

/* 区切り罫線(にじみ風) */
.rule {
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line) 15%, var(--line) 85%, transparent);
  margin: 0;
}

/* ===== ボタン ===== */
.btn {
  display: inline-block;
  padding: .85em 2em;
  font-size: .85rem;
  letter-spacing: .12em;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: var(--accent);
  color: var(--bg);
  transition: background .25s, color .25s, transform .25s;
}
.btn:hover { background: transparent; color: var(--accent); transform: translateY(-2px); }
.btn--ghost { background: transparent; color: var(--accent); }
.btn--ghost:hover { background: var(--accent); color: var(--bg); }

/* ===== ナビ(固定) ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-2) var(--sp-3);
  background: transparent;
  transition: background .35s, box-shadow .35s, padding .35s;
}
.nav.is-solid {
  background: rgba(244, 241, 234, .92);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  box-shadow: 0 1px 0 var(--line);
  padding-top: .6rem;
  padding-bottom: .6rem;
}
.nav__brand {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--bg);
  transition: color .35s;
}
.nav.is-solid .nav__brand { color: var(--fg); }
.nav__brand .en { display: block; font-family: var(--sans); font-size: .58rem; letter-spacing: .3em; color: var(--accent-2); }

.nav__links { display: flex; gap: 1.6rem; list-style: none; margin: 0; padding: 0; }
.nav__links a {
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--bg);
  position: relative;
  padding: .2em 0;
  transition: color .35s;
}
.nav.is-solid .nav__links a { color: var(--fg); }
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: -2px;
  width: 0; height: 1px; background: var(--accent-2); transition: width .3s;
}
.nav__links a:hover::after, .nav__links a[aria-current="true"]::after { width: 100%; }
.nav__links a[aria-current="true"] { color: var(--accent-2); }

.nav__toggle { display: none; }

@media (max-width: 820px) {
  .nav__toggle {
    display: block; background: none; border: 0; cursor: pointer;
    width: 28px; height: 22px; padding: 0; position: relative; z-index: 60;
  }
  .nav__toggle span {
    display: block; height: 2px; background: var(--bg); margin: 5px 0; transition: .3s; border-radius: 2px;
  }
  .nav.is-solid .nav__toggle span, .nav.is-open .nav__toggle span { background: var(--fg); }
  .nav.is-open .nav__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav.is-open .nav__toggle span:nth-child(2) { opacity: 0; }
  .nav.is-open .nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* backdrop-filter を持つナビは fixed 子孫の包含ブロックになるため、
     inset:0 ではメニューがナビ高さに切り詰められる。
     top 固定 + 100dvh で包含ブロックに依存せず全画面を覆う。 */
  .nav__links {
    position: fixed; inset: 0 0 auto 0; height: 100vh; height: 100dvh;
    flex-direction: column;
    align-items: center; justify-content: center; gap: 1.8rem;
    background: rgba(244, 241, 234, .98); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
    transform: translateX(100%); transition: transform .4s ease;
  }
  .nav.is-open .nav__links { transform: translateX(0); }
  .nav__links a { color: var(--fg); font-size: 1.1rem; }
}

/* ===== ヒーロー ===== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  padding: 0;
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0;
  width: 100%; height: 120%;
  object-fit: cover;
  will-change: transform;
  z-index: 0;
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, rgba(21,33,43,.32) 0%, rgba(21,33,43,.05) 40%, rgba(21,33,43,.65) 100%);
}
.hero__inner {
  position: relative; z-index: 2;
  width: 100%; max-width: var(--maxw);
  margin: 0 auto; padding: 0 var(--sp-3) var(--sp-5);
  color: var(--bg);
}
.hero__eyebrow {
  font-family: var(--sans);
  font-size: .72rem; letter-spacing: .35em; text-transform: uppercase;
  color: var(--accent-2); margin: 0 0 var(--sp-2);
}
.hero__title {
  font-size: clamp(2.4rem, 6.5vw, 4.6rem);
  line-height: 1.25; margin: 0 0 var(--sp-3); font-weight: 600;
  text-shadow: 0 2px 24px rgba(21,33,43,.4);
}
.hero__sub { max-width: 26em; font-size: clamp(1rem, 2vw, 1.2rem); color: rgba(244,241,234,.92); margin: 0 0 var(--sp-3); }
.hero__scroll {
  font-family: var(--sans); font-size: .7rem; letter-spacing: .25em;
  color: rgba(244,241,234,.8); display: inline-flex; align-items: center; gap: .6rem;
}
.hero__scroll::before { content: ""; width: 1px; height: 36px; background: var(--accent-2); display: inline-block; }

/* ===== ストーリー(縦組みリード併設) ===== */
.story__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: var(--sp-5);
  align-items: center;
}
.story__vertical {
  writing-mode: vertical-rl;
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  line-height: 2.2;
  letter-spacing: .25em;
  color: var(--accent);
  margin: 0 auto;
  max-height: 24em;
}
.story__media img { width: 100%; border-radius: 2px; aspect-ratio: 3/2; object-fit: cover; }
.story__media figcaption { font-family: var(--sans); font-size: .72rem; color: var(--muted); margin-top: var(--sp-1); letter-spacing: .08em; }
@media (max-width: 820px) {
  .story__grid { grid-template-columns: 1fr; gap: var(--sp-4); }
  .story__vertical { writing-mode: horizontal-tb; max-height: none; text-align: left; }
}

/* ===== プロダクト ===== */
.product { background: var(--surface); }
.product__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-5);
  align-items: center;
}
.product__media img { width: 100%; aspect-ratio: 4/5; object-fit: cover; border-radius: 2px; box-shadow: 0 18px 50px -25px rgba(21,33,43,.5); }
.product__spec { display: flex; gap: var(--sp-4); margin: var(--sp-3) 0; }
.product__spec dt { font-family: var(--sans); font-size: .68rem; letter-spacing: .2em; color: var(--accent-2); text-transform: uppercase; margin-bottom: .2em; }
.product__spec dd { margin: 0; font-size: 1.6rem; font-weight: 600; }
.product__spec dd small { font-size: .9rem; color: var(--muted); }

.tasting { width: 100%; border-collapse: collapse; margin-top: var(--sp-2); }
.tasting th, .tasting td { text-align: left; padding: .7em 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.tasting th { font-size: .72rem; letter-spacing: .12em; color: var(--accent); width: 7em; font-weight: 600; }
@media (max-width: 820px) {
  .product__grid { grid-template-columns: 1fr; gap: var(--sp-4); }
}

/* ===== ボタニカル(ギャラリー) ===== */
.botanicals__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}
.botanical {
  position: relative; cursor: pointer; overflow: hidden; border-radius: 2px;
  background: var(--surface);
}
.botanical img { width: 100%; aspect-ratio: 1/1; object-fit: cover; transition: transform .6s ease; }
.botanical:hover img { transform: scale(1.06); }
.botanical figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  font-family: var(--sans); font-size: .82rem; letter-spacing: .08em;
  color: var(--bg); padding: 1.4em 1em .8em;
  background: linear-gradient(transparent, rgba(21,33,43,.7));
}
@media (max-width: 720px) {
  .botanicals__grid { grid-template-columns: 1fr 1fr; }
}

/* ===== プロセス ===== */
.process__steps {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-4);
  margin-top: var(--sp-4);
}
.step__num {
  font-family: var(--sans); font-size: .8rem; letter-spacing: .2em;
  color: var(--accent-2); border-top: 2px solid var(--accent-2);
  padding-top: var(--sp-1); display: inline-block; margin-bottom: var(--sp-2);
}
.step h3 { font-size: 1.2rem; margin: 0 0 var(--sp-1); }
.process__media { margin-top: var(--sp-4); }
.process__media img { width: 100%; aspect-ratio: 3/2; object-fit: cover; border-radius: 2px; }
@media (max-width: 720px) {
  .process__steps { grid-template-columns: 1fr; gap: var(--sp-3); }
}

/* ===== 造り手 ===== */
.maker { background: var(--accent); color: var(--bg); }
.maker .eyebrow { color: var(--accent-2); }
.maker__grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: var(--sp-5); align-items: center; }
.maker__media img { width: 100%; aspect-ratio: 3/2; object-fit: cover; border-radius: 2px; }
.maker__body .section-title, .maker__body p { color: var(--bg); }
.maker__sign { font-family: var(--serif); font-size: 1.2rem; margin-top: var(--sp-3); letter-spacing: .1em; }
.maker__sign small { display: block; font-family: var(--sans); font-size: .7rem; letter-spacing: .2em; color: var(--accent-2); margin-top: .3em; }
@media (max-width: 820px) {
  .maker__grid { grid-template-columns: 1fr; gap: var(--sp-4); }
}

/* ===== 見学 ===== */
.visit__media { position: relative; border-radius: 2px; overflow: hidden; margin-bottom: var(--sp-4); }
.visit__media img { width: 100%; aspect-ratio: 16/7; object-fit: cover; }
.visit__grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: var(--sp-5); }
.visit dl { margin: 0; display: grid; grid-template-columns: 6em 1fr; gap: .6em var(--sp-2); }
.visit dt { font-family: var(--sans); font-size: .74rem; letter-spacing: .12em; color: var(--accent); padding-top: .25em; }
.visit dd { margin: 0; }
@media (max-width: 820px) {
  .visit__grid { grid-template-columns: 1fr; gap: var(--sp-3); }
}

/* ===== 入手 ===== */
.buy { background: var(--surface); text-align: center; }
.buy .lead { margin-left: auto; margin-right: auto; }
.buy__cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-3); margin: var(--sp-4) 0; text-align: left; }
.buy__card { background: var(--bg); border: 1px solid var(--line); border-radius: 3px; padding: var(--sp-3); }
.buy__card h3 { font-size: 1.1rem; margin: 0 0 var(--sp-1); }
.buy__card p { font-size: .92rem; color: var(--muted); }
.buy__actions { display: flex; gap: var(--sp-2); justify-content: center; flex-wrap: wrap; }
@media (max-width: 720px) {
  .buy__cards { grid-template-columns: 1fr; }
}

/* ===== フッター ===== */
.footer { background: var(--fg); color: var(--bg); padding: var(--sp-5) 0 var(--sp-3); }
.footer__top { display: flex; justify-content: space-between; gap: var(--sp-4); flex-wrap: wrap; }
.footer__brand { font-size: 1.3rem; letter-spacing: .14em; }
.footer__brand .en { display: block; font-family: var(--sans); font-size: .6rem; letter-spacing: .3em; color: var(--accent-2); margin-top: .4em; }
.footer-nav { list-style: none; margin: 0; padding: 0; display: flex; gap: var(--sp-3); flex-wrap: wrap; }
.footer-nav a { color: rgba(244,241,234,.85); font-size: .8rem; letter-spacing: .08em; }
.footer-nav a:hover { color: var(--accent-2); }
.footer__note {
  font-family: var(--sans); font-size: .72rem; line-height: 1.8;
  color: rgba(244,241,234,.55); margin-top: var(--sp-4);
  border-top: 1px solid rgba(244,241,234,.15); padding-top: var(--sp-2);
}
.footer__age { color: var(--accent-2); }

/* ===== ライトボックス ===== */
.lightbox {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(21,33,43,.92);
  display: flex; align-items: center; justify-content: center;
  padding: var(--sp-3);
  opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s;
}
.lightbox.is-open { opacity: 1; visibility: visible; }
.lightbox img { max-width: 90vw; max-height: 82vh; object-fit: contain; border-radius: 2px; }
.lightbox__cap { position: absolute; bottom: var(--sp-3); color: var(--bg); font-family: var(--sans); font-size: .85rem; letter-spacing: .1em; }
.lightbox__close {
  position: absolute; top: var(--sp-3); right: var(--sp-3);
  background: none; border: 0; color: var(--bg); font-size: 2rem; cursor: pointer; line-height: 1;
}

/* ===== スクロール演出 ===== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s ease, transform .9s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}