/* ============================================================
   灯 — akari | オーセンティックバー ブランディングLP
   ------------------------------------------------------------
   1. トークン定義（:root）
   2. リセット・基礎
   3. 共通パーツ（見出し・CTA・リビール）
   4. ヘッダー
   5. 各セクション
   6. フッター
   7. オープニング演出
   8. レスポンシブ
   9. prefers-reduced-motion
   ============================================================ */

/* ---------- 1. カラー / タイポ トークン ---------- */
:root {
  --bg:      #150E0A;  /* 背景・最も暗い */
  --surface: #2A1C12;  /* セクション面・カード */
  --accent:  #C8873E;  /* 琥珀（見出し罫・CTA・アクセント） */
  --text:    #ECDCC5;  /* 本文 */
  --muted:   #9A8266;  /* 補助テキスト・キャプション */

  --font-ja: "Noto Sans JP", system-ui, sans-serif;
  --font-en: "Cormorant Garamond", "EB Garamond", serif;

  --maxw: 1080px;
  --gutter: clamp(1.25rem, 5vw, 4rem);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- 2. リセット・基礎 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden; /* 横スクロール抑制は html 側で。body に置くと body が独自スクロール化し window.scrollTo 等が壊れる */
}

body {
  font-family: var(--font-ja);
  font-weight: 300;
  color: var(--text);
  background-color: var(--bg);
  line-height: 1.8;
  letter-spacing: 0.06em;
  font-feature-settings: "palt";
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

::selection {
  background: rgba(200, 135, 62, 0.3);
  color: var(--text);
}

/* ---------- 3. 共通パーツ ---------- */

/* セクション見出し */
.section-head {
  text-align: center;
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.section-head__en {
  display: block;
  font-family: var(--font-en);
  font-style: italic;
  font-size: clamp(1rem, 2.4vw, 1.35rem);
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.section-head__ja {
  font-size: clamp(1.35rem, 3.4vw, 1.9rem);
  font-weight: 400;
  letter-spacing: 0.18em;
}

.section-head__ja::after {
  content: "";
  display: block;
  width: 42px;
  height: 1px;
  margin: 1.2rem auto 0;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

/* CTA */
.cta {
  display: inline-block;
  font-size: 0.95rem;
  letter-spacing: 0.16em;
  color: var(--text);
  padding: 1rem 2.6rem;
  border: 1px solid var(--accent);
  border-radius: 1px;
  transition: color 0.5s var(--ease), background-color 0.5s var(--ease),
    box-shadow 0.5s var(--ease);
}

.cta:hover,
.cta:focus-visible {
  background-color: rgba(200, 135, 62, 0.12);
  box-shadow: 0 0 24px rgba(200, 135, 62, 0.25);
  color: #fff;
}

/* テキストリンクの琥珀アンダーライン（左から伸びる） */
.site-nav a,
.site-footer__sns {
  position: relative;
}

.site-nav a::after,
.site-footer__sns::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-footer__sns:hover::after,
.site-footer__sns:focus-visible::after {
  transform: scaleX(1);
}

/* スクロールリビール（JSで .is-visible 付与） */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* フォーカス可視化 */
a:focus-visible,
.cta:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 4px;
}

/* ---------- 4. ヘッダー ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem var(--gutter);
  background: linear-gradient(180deg, rgba(21, 14, 10, 0.8), transparent);
  transition: background-color 0.6s var(--ease), backdrop-filter 0.6s var(--ease);
}

.site-header.is-scrolled {
  background-color: rgba(21, 14, 10, 0.85);
  backdrop-filter: blur(8px);
}

.site-header__mark {
  font-family: var(--font-en);
  font-size: 1.5rem;
  letter-spacing: 0.1em;
  color: var(--text);
}

.site-nav {
  display: flex;
  gap: clamp(1rem, 3vw, 2.2rem);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

/* ---------- 5-1. ヒーロー ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(
      120% 90% at 50% 40%,
      rgba(21, 14, 10, 0.45),
      rgba(21, 14, 10, 0.85) 80%
    ),
    linear-gradient(180deg, rgba(21, 14, 10, 0.4), rgba(21, 14, 10, 0.75));
}

.hero__inner {
  position: relative;
  z-index: 2;
  padding: 0 var(--gutter);
}

.hero__wordmark {
  font-family: var(--font-en);
  font-size: clamp(2.6rem, 9vw, 5.5rem);
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--text);
  line-height: 1.1;
}

.hero__rule {
  display: block;
  width: 1px;
  height: 56px;
  margin: 1.6rem auto;
  background: linear-gradient(180deg, var(--accent), transparent);
}

.hero__name {
  font-size: clamp(1.1rem, 3.6vw, 1.6rem);
  font-weight: 400;
  letter-spacing: 0.4em;
  margin-bottom: 1.4rem;
}

.hero__name span {
  color: var(--muted);
  font-family: var(--font-en);
  font-style: italic;
  letter-spacing: 0.1em;
}

.hero__catch {
  font-size: clamp(0.95rem, 2.4vw, 1.15rem);
  color: var(--text);
  letter-spacing: 0.2em;
}

.hero__scroll {
  position: absolute;
  bottom: 2.2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  color: var(--muted);
}

.hero__scroll-text {
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

.hero__scroll-line {
  width: 1px;
  height: 46px;
  background: linear-gradient(180deg, var(--accent), transparent);
  animation: scrollPulse 2.4s var(--ease) infinite;
  transform-origin: top;
}

@keyframes scrollPulse {
  0% { transform: scaleY(0); opacity: 0; }
  40% { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(1); opacity: 0; }
}

/* ---------- 5-2. ギャラリー ---------- */
.gallery,
.drinks,
.access,
.news {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(5rem, 12vw, 9rem) var(--gutter);
}

.gallery__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1rem, 3vw, 2rem);
  align-items: start;
}

.gallery__item {
  margin: 0;
}

.gallery__item--tall {
  align-self: start;
}

.gallery__item--wide {
  align-self: center;
}

.gallery__img-wrap {
  overflow: hidden;
  border: 1px solid rgba(200, 135, 62, 0.15);
}

.gallery__img-wrap img {
  width: 100%;
  transition: transform 1.2s var(--ease), filter 1.2s var(--ease);
  filter: saturate(0.9) brightness(0.92);
}

.gallery__item:hover .gallery__img-wrap img,
.gallery__item:focus-within .gallery__img-wrap img {
  transform: scale(1.03);
  filter: saturate(1) brightness(1);
}

.gallery__cap {
  margin-top: 0.9rem;
  font-size: 0.9rem;
  letter-spacing: 0.16em;
  color: var(--muted);
  opacity: 0.75;
  transition: color 0.6s var(--ease), opacity 0.6s var(--ease);
}

.gallery__item:hover .gallery__cap,
.gallery__item:focus-within .gallery__cap {
  color: var(--accent);
  opacity: 1;
}

/* ---------- 5-3. ドリンク ---------- */
.drinks {
  background-color: var(--surface);
  max-width: none;
}

.drinks .section-head,
.drinks__list {
  max-width: var(--maxw);
  margin-inline: auto;
}

.drinks__list {
  border-top: 1px solid rgba(200, 135, 62, 0.18);
}

.drinks__item {
  padding: 1.6rem 0.5rem;
  border-bottom: 1px solid rgba(200, 135, 62, 0.18);
  transition: background-color 0.5s var(--ease);
}

.drinks__item:hover {
  background-color: rgba(200, 135, 62, 0.05);
}

.drinks__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}

.drinks__name {
  font-size: clamp(1rem, 2.6vw, 1.15rem);
  font-weight: 400;
  letter-spacing: 0.1em;
}

.drinks__price {
  font-family: var(--font-en);
  font-size: 1.15rem;
  color: var(--accent);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.drinks__note {
  margin-top: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}

/* ---------- 5-4. アクセス ---------- */
.access__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 5vw, 3.5rem);
  align-items: center;
}

.access__block {
  padding: 1.1rem 0;
  border-bottom: 1px solid rgba(200, 135, 62, 0.15);
}

.access__block dt {
  font-family: var(--font-en);
  font-style: italic;
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 0.3rem;
}

.access__block dd {
  font-size: 1rem;
  letter-spacing: 0.1em;
}

.access__map {
  border: 1px solid rgba(200, 135, 62, 0.15);
  overflow: hidden;
}

.access__map img {
  width: 100%;
}

/* ---------- 5-5. 予約 ---------- */
.reserve {
  text-align: center;
  padding: clamp(5rem, 14vw, 10rem) var(--gutter);
  background:
    radial-gradient(80% 120% at 50% 0%, rgba(200, 135, 62, 0.08), transparent 70%),
    var(--bg);
}

.reserve__inner {
  max-width: 620px;
  margin-inline: auto;
}

.reserve__lead {
  margin: 1.5rem 0 2.5rem;
  color: var(--muted);
  font-size: 0.95rem;
  letter-spacing: 0.1em;
}

/* ---------- 5-6. お知らせ ---------- */
.news {
  background-color: var(--surface);
  max-width: none;
}

.news .section-head,
.news__list {
  max-width: var(--maxw);
  margin-inline: auto;
}

.news__item {
  display: flex;
  align-items: baseline;
  gap: clamp(1rem, 4vw, 2.5rem);
  padding: 1.3rem 0;
  border-bottom: 1px solid rgba(200, 135, 62, 0.15);
}

.news__item time {
  font-family: var(--font-en);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  white-space: nowrap;
}

.news__item p {
  font-size: 0.95rem;
  color: var(--text);
  letter-spacing: 0.08em;
}

/* ---------- 6. フッター ---------- */
.site-footer {
  background-color: var(--bg);
  padding: clamp(3rem, 8vw, 5rem) var(--gutter) 2.5rem;
  text-align: center;
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
}

.site-footer__mark {
  font-size: 1.1rem;
  letter-spacing: 0.3em;
  color: var(--text);
}

.site-footer__sns {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
  font-family: var(--font-en);
  letter-spacing: 0.1em;
  transition: color 0.5s var(--ease);
}

.site-footer__sns:hover,
.site-footer__sns:focus-visible {
  color: var(--accent);
}

.site-footer__copy {
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--muted);
  opacity: 0.7;
}

/* ---------- 7. オープニング演出 ---------- */
.intro {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg);
  transition: opacity 1s var(--ease), visibility 1s var(--ease);
}

.intro__mark {
  font-family: var(--font-en);
  font-style: italic;
  font-size: clamp(2.4rem, 8vw, 4.5rem);
  letter-spacing: 0.14em;
  color: var(--accent);
  opacity: 0;
  transform: translateY(10px);
  animation: introFade 2s var(--ease) forwards;
  text-shadow: 0 0 30px rgba(200, 135, 62, 0.35);
}

@keyframes introFade {
  0% { opacity: 0; transform: translateY(10px); }
  40% { opacity: 1; transform: translateY(0); }
  100% { opacity: 1; transform: translateY(0); }
}

/* JSでフェードアウト */
.intro.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* 演出を出さない場合（reduced-motion / 再訪） */
.intro.is-skipped {
  display: none;
}

/* body ロック（演出中のスクロール抑制） */
body.is-intro-active {
  overflow: hidden;
}

/* ---------- 8. レスポンシブ ---------- */
@media (max-width: 720px) {
  .site-nav {
    display: none; /* モバイルは店名ワードマークのみ。導線はページ内CTAに集約 */
  }

  .gallery__grid {
    grid-template-columns: 1fr;
    max-width: 460px;
    margin-inline: auto;
  }

  .access__grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- 9. reduced-motion ---------- */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .hero__bg {
    transform: none;
  }

  .intro {
    display: none;
  }
}