/*
 * A&N DANCE 公開ページ スタイル
 * Ver 1.0.0  2026-09-23  新規作成（スマホ優先・バーガンディ×ゴールド）
 * Ver 1.1.0  2026-09-24  アクセス欄のスタイルを削除
 */
:root {
  --wine-900: #1c0409;
  --wine-800: #2a0710;
  --wine-700: #3d0b17;
  --wine-600: #5a1224;
  --wine-500: #7a1a30;
  --gold-100: #fbf1d6;
  --gold-300: #ecd08e;
  --gold-400: #d9b264;
  --gold-500: #c29543;
  --gold-700: #8a6424;
  --cream: #f7efe1;
  --cream-2: #efe2c9;
  --ink: #3a2414;
  --ink-soft: #6b5238;
  --gold-grad: linear-gradient(135deg, #f6e3a8 0%, #d9b264 35%, #b98a3a 60%, #f0d692 100%);
  --serif-en: "Cinzel", "Times New Roman", serif;
  --serif-ja: "Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --sans: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --header-h: 60px;
  --bar-h: 62px;
  --safe-b: env(safe-area-inset-bottom, 0px);
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--wine-800);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.8;
  letter-spacing: .03em;
  -webkit-font-smoothing: antialiased;
  padding-bottom: calc(var(--bar-h) + var(--safe-b));
}
img, video, iframe { max-width: 100%; display: block; }
a { color: inherit; }
button { font: inherit; color: inherit; }
.inner { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.center { text-align: center; }
.nw { display: inline-block; }

/* ---------- ヘッダー ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  height: calc(var(--header-h) + env(safe-area-inset-top, 0px));
  padding: env(safe-area-inset-top, 0px) 12px 0 14px;
  display: flex; align-items: center; justify-content: space-between;
  background: linear-gradient(to bottom, rgba(20, 3, 7, .75), rgba(20, 3, 7, 0));
  transition: background .3s, box-shadow .3s;
}
.site-header.is-solid {
  background: rgba(28, 4, 9, .94);
  box-shadow: 0 1px 0 rgba(217, 178, 100, .35);
  /* backdrop-filter はメニュー(position:fixed)の基準がヘッダーになってしまうため使わない */
}
.brand { display: flex; align-items: center; gap: 8px; text-decoration: none; }
.brand img { width: 40px; height: 40px; }
.brand span {
  font-family: var(--serif-en); font-weight: 600; font-size: 17px; letter-spacing: .18em;
  background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.menu-btn {
  width: 44px; height: 44px; border: 0; background: transparent; position: relative; cursor: pointer; z-index: 2;
}
.menu-btn span {
  position: absolute; left: 11px; right: 11px; height: 1.5px; background: var(--gold-300);
  transition: transform .3s, opacity .3s;
}
.menu-btn span:nth-child(1) { top: 15px; }
.menu-btn span:nth-child(2) { top: 21px; }
.menu-btn span:nth-child(3) { top: 27px; }
.menu-open .menu-btn span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-open .menu-btn span:nth-child(2) { opacity: 0; }
.menu-open .menu-btn span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.global-nav {
  position: fixed; inset: 0; z-index: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px;
  background: radial-gradient(ellipse at 50% 30%, var(--wine-600), var(--wine-900) 70%);
  opacity: 0; visibility: hidden; transition: opacity .35s, visibility .35s;
}
.menu-open .global-nav { opacity: 1; visibility: visible; }
.global-nav a {
  font-family: var(--serif-en); font-size: 22px; letter-spacing: .25em; color: var(--gold-300);
  text-decoration: none; padding: 10px 24px;
}
.global-nav .nav-ig { display: flex; align-items: center; gap: 8px; font-family: var(--sans); font-size: 15px; letter-spacing: .05em; margin-top: 18px; }
.global-nav svg, .btn svg, .action-bar svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
svg .fill { fill: currentColor; stroke: none; }

/* ---------- ヒーロー（スライドショー） ---------- */
.hero {
  position: relative; height: 100vh; height: 100svh; min-height: 480px;
  background: var(--wine-900); overflow: hidden;
}
.hero-stage { position: absolute; inset: 0; touch-action: pan-y; }
.hero-layer { position: absolute; inset: 0; opacity: 0; transition: opacity .6s ease; }
.hero-layer.is-active { opacity: 1; }
.hero-backdrop {
  position: absolute; inset: -40px; background: center / cover no-repeat;
  filter: blur(28px) brightness(.55) saturate(1.1); transform: scale(1.1);
}
.hero-media { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.fit-cover .hero-media { object-fit: cover; }
.fit-cover .hero-backdrop { display: none; }
.hero::after { /* 下端をなじませる */
  content: ""; position: absolute; inset: auto 0 0 0; height: 90px; pointer-events: none;
  background: linear-gradient(to bottom, rgba(28, 4, 9, 0), var(--wine-800));
}
.hero-ui {
  position: absolute; z-index: 3; left: 0; right: 0; bottom: 18px;
  display: flex; align-items: center; justify-content: center; gap: 12px; padding: 0 16px;
}
.hero-dots { display: flex; gap: 6px; }
.hero-dot {
  width: 26px; height: 18px; border: 0; padding: 0; background: transparent; cursor: pointer; position: relative;
}
.hero-dot::before {
  content: ""; position: absolute; left: 0; right: 0; top: 8px; height: 2px; background: rgba(236, 208, 142, .35);
}
.hero-dot i {
  position: absolute; left: 0; top: 8px; height: 2px; width: 0; background: var(--gold-300);
}
.hero-dot.is-done i { width: 100%; }
.hero-sound {
  position: absolute; right: 14px; bottom: -6px;
  width: 42px; height: 42px; border-radius: 50%; border: 1px solid rgba(236, 208, 142, .6);
  background: rgba(28, 4, 9, .55); color: var(--gold-300); display: grid; place-items: center; cursor: pointer;
}
.hero-sound svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.hero-sound .ic-on { display: none; }
.hero-sound.is-on .ic-on { display: block; }
.hero-sound.is-on .ic-off { display: none; }
.hero-play {
  position: absolute; z-index: 2; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 76px; height: 76px; border-radius: 50%; border: 1px solid var(--gold-300);
  background: rgba(28, 4, 9, .5); cursor: pointer;
}
.hero-play::before {
  content: ""; position: absolute; left: 31px; top: 24px;
  border-style: solid; border-width: 14px 0 14px 22px; border-color: transparent transparent transparent var(--gold-300);
}
.hero-fallback {
  position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  background: radial-gradient(ellipse at 50% 35%, var(--wine-500), var(--wine-900) 70%);
}
.hero-fallback img { width: 58vw; max-width: 260px; height: auto; }
.hero-fallback .hero-fallback-title { width: 80vw; max-width: 380px; }
.scroll-cue {
  position: absolute; z-index: 3; left: 50%; bottom: 52px; width: 22px; height: 36px; margin-left: -11px;
  border: 1px solid rgba(236, 208, 142, .7); border-radius: 12px;
}
.scroll-cue span {
  position: absolute; left: 50%; top: 7px; width: 2px; height: 7px; margin-left: -1px; background: var(--gold-300);
  border-radius: 1px; animation: cue 1.8s infinite;
}
@keyframes cue { 0% { opacity: 0; transform: translateY(0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(12px); } }

/* ---------- 見出し共通 ---------- */
.sec-title { margin: 0 0 32px; text-align: center; font-weight: normal; }
.sec-title .en {
  display: block; font-family: var(--serif-en); font-size: 26px; letter-spacing: .28em; padding-left: .28em;
  background: linear-gradient(135deg, #9c7129, #c29543 45%, #7c561c); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.sec-title .ja { display: block; font-family: var(--serif-ja); font-size: 13px; letter-spacing: .3em; color: var(--ink-soft); margin-top: 2px; }
.sec-title .en::after {
  content: ""; display: block; width: 56px; height: 1px; margin: 12px auto 0; background: var(--gold-500);
}
.sec-title.light .en { background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; }
.sec-title.light .ja { color: var(--gold-300); opacity: .85; }

/* ---------- コンセプト ---------- */
.concept {
  position: relative; text-align: center; padding: 64px 0 72px; color: var(--gold-100);
  background:
    radial-gradient(ellipse at 50% 0%, rgba(122, 26, 48, .8), transparent 65%),
    linear-gradient(to bottom, var(--wine-800), var(--wine-700));
}
.eyebrow {
  margin: 0; font-family: "Cinzel", serif; font-style: italic; font-size: 20px; letter-spacing: .12em; color: var(--gold-400);
}
.catch {
  margin: 14px 0 0; font-family: var(--serif-ja); font-weight: 700; font-size: clamp(26px, 7.4vw, 44px); line-height: 1.55; letter-spacing: .08em;
  background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.ornament { display: flex; align-items: center; justify-content: center; gap: 12px; margin: 26px auto; color: var(--gold-400); }
.ornament i { width: 70px; height: 1px; background: linear-gradient(to right, transparent, var(--gold-400)); }
.ornament i:last-child { transform: scaleX(-1); }
.ornament b { font-weight: normal; font-size: 14px; }
.lead { margin: 0; font-family: var(--serif-ja); font-size: 15px; line-height: 2.1; color: #f1e3c6; }

/* ---------- サービス ---------- */
.service {
  padding: 68px 0 64px;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(255, 255, 255, .7), transparent 50%),
    linear-gradient(160deg, var(--cream), var(--cream-2));
}
.service-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.service-item {
  display: grid; grid-template-columns: 64px 1fr; gap: 14px; align-items: center;
  padding: 18px 16px; background: rgba(255, 252, 244, .75);
  border: 1px solid rgba(194, 149, 67, .45); border-radius: 4px;
  box-shadow: 0 6px 18px -12px rgba(90, 60, 20, .5);
}
.service-icon {
  width: 64px; height: 64px; border-radius: 50%; display: grid; place-items: center;
  border: 1px solid var(--gold-500); color: var(--gold-700); background: #fffaf0;
}
.service-icon svg { width: 38px; height: 38px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.service-item h3 { margin: 0 0 2px; font-family: var(--serif-ja); font-size: 17px; font-weight: 700; color: var(--ink); letter-spacing: .06em; }
.service-item p { margin: 0; font-size: 13.5px; line-height: 1.75; color: var(--ink-soft); }

/* ---------- ギャラリー ---------- */
.gallery { padding: 68px 0 64px; background: linear-gradient(to bottom, var(--wine-800), var(--wine-900)); }
.gallery-grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px; }
.gallery-item.is-more { display: none; }
.gallery-grid.show-all .gallery-item.is-more { display: block; }
.gallery-btn {
  position: relative; display: block; width: 100%; aspect-ratio: 3 / 4; padding: 0; border: 0; cursor: pointer;
  background: var(--wine-700); overflow: hidden;
}
.gallery-btn img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.gallery-btn:hover img { transform: scale(1.04); }
.gallery-btn::after { content: ""; position: absolute; inset: 0; box-shadow: inset 0 0 0 1px rgba(236, 208, 142, .25); }
.play-badge {
  position: absolute; right: 8px; bottom: 8px; width: 30px; height: 30px; border-radius: 50%;
  background: rgba(28, 4, 9, .6); border: 1px solid var(--gold-300);
}
.play-badge::before {
  content: ""; position: absolute; left: 11px; top: 8px;
  border-style: solid; border-width: 6px 0 6px 10px; border-color: transparent transparent transparent var(--gold-300);
}
.gallery .center { margin-top: 24px; }

/* ---------- Instagram ---------- */
.insta {
  text-align: center; padding: 56px 0; color: var(--gold-100);
  background:
    radial-gradient(ellipse at 50% 120%, rgba(217, 178, 100, .28), transparent 60%),
    linear-gradient(to bottom, var(--wine-900), var(--wine-700));
  border-top: 1px solid rgba(217, 178, 100, .3); border-bottom: 1px solid rgba(217, 178, 100, .3);
}
.insta-lead { margin: 0; font-family: var(--serif-ja); font-size: 14px; letter-spacing: .1em; }
.insta-title {
  margin: 4px 0 20px; font-family: var(--serif-ja); font-weight: 700; font-size: 32px; letter-spacing: .04em;
  background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.insta-title small { font-size: 18px; margin-left: 4px; }
.insta-note { margin: 16px 0 0; font-size: 13px; color: #e6d3ad; }

/* ---------- ボタン ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 50px; padding: 12px 26px; border-radius: 999px; text-decoration: none; cursor: pointer;
  font-family: var(--serif-ja); font-weight: 700; font-size: 15px; letter-spacing: .08em; border: 0;
  transition: transform .15s, box-shadow .2s, filter .2s;
}
.btn:active { transform: translateY(1px); }
.btn-gold { background: var(--gold-grad); color: var(--wine-800); box-shadow: 0 8px 20px -10px rgba(217, 178, 100, .9); }
.btn-gold:hover { filter: brightness(1.06); }
.btn-ghost { background: transparent; color: var(--gold-300); border: 1px solid var(--gold-400); }
.btn-ghost-dark { background: transparent; color: var(--gold-700); border: 1px solid var(--gold-500); margin-top: 14px; }
.btn-line { background: #06c755; color: #fff; }
.btn-block { width: 100%; }

/* ---------- お問い合わせ ---------- */
.contact { padding: 68px 0 72px; color: var(--gold-100); background: linear-gradient(to bottom, var(--wine-700), var(--wine-900)); }
.contact-lead { text-align: center; font-family: var(--serif-ja); line-height: 2; margin: 0 0 26px; }
.contact-buttons { display: grid; gap: 12px; max-width: 420px; margin: 0 auto; }
.contact-form { max-width: 560px; margin: 36px auto 0; display: grid; gap: 16px; padding-top: 30px; border-top: 1px solid rgba(217, 178, 100, .3); }
.field { display: grid; gap: 6px; }
.field span { font-size: 13.5px; color: var(--gold-300); }
.field em { font-style: normal; font-size: 11px; color: var(--wine-800); background: var(--gold-400); padding: 1px 6px; border-radius: 2px; margin-left: 4px; }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; font-size: 16px; /* iOS のズーム防止 */
  color: var(--gold-100); background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(217, 178, 100, .45); border-radius: 4px; padding: 12px 12px; outline: none;
}
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--gold-300) 50%), linear-gradient(135deg, var(--gold-300) 50%, transparent 50%); background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px; background-repeat: no-repeat; }
.field select option { color: #222; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--gold-300); box-shadow: 0 0 0 3px rgba(217, 178, 100, .2); }
.field .is-error { border-color: #ff8f8f; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-msg { margin: 0; min-height: 1.5em; text-align: center; font-size: 14px; }
.form-msg.ok { color: #bfe8b5; }
.form-msg.ng { color: #ffb4b4; }

/* ---------- フッター ---------- */
.site-footer { text-align: center; padding: 44px 20px 28px; background: var(--wine-900); color: var(--gold-300); border-top: 1px solid rgba(217, 178, 100, .25); }
.site-footer img { width: 64px; height: 64px; margin: 0 auto 6px; }
.footer-name { margin: 0; font-family: var(--serif-en); letter-spacing: .25em; font-size: 16px; }
.footer-tag { margin: 4px 0 18px; font-size: 12px; opacity: .8; }
.copy { margin: 0; font-size: 11px; opacity: .6; letter-spacing: .1em; }

/* ---------- 下部アクションバー（スマホ） ---------- */
.action-bar {
  position: fixed; z-index: 40; left: 0; right: 0; bottom: 0;
  display: flex; height: calc(var(--bar-h) + var(--safe-b)); padding-bottom: var(--safe-b);
  background: rgba(28, 4, 9, .96); border-top: 1px solid rgba(217, 178, 100, .45);
  transform: translateY(110%); transition: transform .35s ease;
}
.action-bar.is-show { transform: translateY(0); }
.action-bar a {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
  text-decoration: none; color: var(--gold-300); font-size: 11px; letter-spacing: .05em;
}
.action-bar a + a { border-left: 1px solid rgba(217, 178, 100, .2); }
.action-bar svg { width: 22px; height: 22px; }

/* ---------- ライトボックス ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 100; background: rgba(12, 2, 4, .96);
  display: flex; align-items: center; justify-content: center;
}
.lightbox[hidden] { display: none; }
.lb-body { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; padding: 56px 0 64px; touch-action: pan-y; }
.lb-body img, .lb-body video { max-width: 100%; max-height: 100%; object-fit: contain; }
.lb-close, .lb-prev, .lb-next {
  position: absolute; z-index: 2; border: 0; background: transparent; color: var(--gold-300); cursor: pointer;
  width: 52px; height: 52px; font-size: 40px; line-height: 1;
}
.lb-close { top: calc(6px + env(safe-area-inset-top, 0px)); right: 6px; font-size: 36px; }
.lb-prev { left: 0; top: 50%; transform: translateY(-50%); }
.lb-next { right: 0; top: 50%; transform: translateY(-50%); }
.lb-caption { position: absolute; left: 0; right: 0; bottom: calc(14px + var(--safe-b)); margin: 0; text-align: center; color: var(--gold-100); font-size: 14px; padding: 0 20px; }
body.no-scroll { overflow: hidden; }

/* ---------- タブレット・PC ---------- */
@media (min-width: 720px) {
  body { font-size: 16px; padding-bottom: 0; }
  :root { --header-h: 72px; }
  .site-header { padding: 0 28px; }
  .brand img { width: 46px; height: 46px; }
  .brand span { font-size: 20px; }
  .menu-btn { display: none; }
  .global-nav {
    position: static; opacity: 1; visibility: visible; background: none;
    flex-direction: row; gap: 4px;
  }
  .global-nav a { font-size: 13px; letter-spacing: .22em; padding: 8px 12px; }
  .global-nav a:hover { color: var(--gold-100); }
  .global-nav .nav-ig { margin: 0 0 0 10px; font-size: 13px; border: 1px solid rgba(217, 178, 100, .6); border-radius: 999px; padding: 6px 14px; }
  .action-bar { display: none; }
  .concept { padding: 96px 0 104px; }
  .service, .gallery, .contact { padding: 96px 0; }
  .sec-title .en { font-size: 32px; }
  .service-list { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .contact-buttons { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); max-width: 760px; }
  .hero-sound { right: 28px; }
}
@media (min-width: 1024px) {
  .gallery-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-layer { transition: none; }
  .scroll-cue span { animation: none; }
}