/* =========================================================
   TS屋 共通スタイル
   配色は design.png（漆黒×シャンパン×パール）に準拠。
   色・余白・書体の調整は :root の変数だけで完結するようにしてある。
   ========================================================= */
:root {
  --c-lacquer: #1C1815;      /* 漆黒: ヘッダー・ヒーロー・フッター */
  --c-lacquer-2: #26201C;
  --c-lacquer-3: #342C26;
  --c-champagne: #CDAE7F;    /* シャンパン: 暗い地の上のアクセント・主ボタン */
  --c-champagne-soft: #E6D5B8;
  --c-brass: #7C6038;        /* 真鍮: 明るい地の上のアクセント文字（AA対応） */
  --c-pearl: #F6F4F1;        /* パール: 明るいセクションの地 */
  --c-sand: #EADFD0;
  --c-chrome: #B9BDC2;
  --c-white: #FFFFFF;
  --c-ink: #29231F;
  --c-mute: #6C625A;
  --c-mute-dark: #B5AA9E;    /* 暗い地の上の補足文字 */
  --c-line: rgba(41, 35, 31, .14);
  --c-line-dark: rgba(246, 244, 241, .16);

  --ff-serif: "Shippori Mincho B1", "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  --ff-sans: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", "YuGothic", sans-serif;

  --container: 1160px;
  --gutter: clamp(20px, 5vw, 48px);
  --header-h: 76px;
  --sec-y: clamp(88px, 12vw, 160px);  /* セクションの上下余白 */
  --ease: cubic-bezier(.22, .61, .36, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
  margin: 0;
  font-family: var(--ff-sans);
  font-size: 16px;
  line-height: 1.95;
  letter-spacing: .04em;
  color: var(--c-ink);
  background: var(--c-pearl);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg, video, iframe { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
table { border-collapse: collapse; }

:focus-visible { outline: 2px solid var(--c-champagne); outline-offset: 3px; }
.sec--light :focus-visible, .sec--white :focus-visible, .sec--pearl :focus-visible { outline-color: var(--c-brass); }

.skip {
  position: absolute; left: 12px; top: -100px; z-index: 1000;
  padding: 10px 16px; background: var(--c-champagne); color: var(--c-lacquer);
}
.skip:focus { top: 12px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.container { width: min(100% - var(--gutter) * 2, var(--container)); margin-inline: auto; }
.pc-only { display: inline; }
@media (max-width: 767px) { .pc-only { display: none; } }

/* ---------- 見出し ---------- */
.sec { padding-block: var(--sec-y); position: relative; }
.sec--dark { background: var(--c-lacquer); color: var(--c-pearl); }
.sec--light { background: var(--c-pearl); }
.sec--white { background: var(--c-white); }
/* ALBIONの「パールの光沢地」を再現した明るい地 */
.sec--pearl {
  background:
    radial-gradient(60% 50% at 12% 18%, rgba(255, 255, 255, .95), transparent 70%),
    radial-gradient(50% 60% at 88% 30%, rgba(222, 214, 226, .55), transparent 70%),
    radial-gradient(70% 60% at 70% 95%, rgba(234, 223, 208, .8), transparent 70%),
    var(--c-pearl);
}

.sec-head { margin-bottom: clamp(40px, 6vw, 72px); }
.sec-head--center { text-align: center; }
/* 英字ラベル: 配管の継手（エルボ）を模した記号を添える */
.sec-label {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--ff-serif); font-size: 13px; letter-spacing: .2em;
  color: var(--c-brass); margin-bottom: 18px;
}
.sec--dark .sec-label, .reserve-band .sec-label, .page-hero .sec-label, .nf .sec-label { color: var(--c-champagne); }
.sec-label::before {
  content: ""; width: 14px; height: 14px; flex: none;
  border-top: 2px solid currentColor; border-right: 2px solid currentColor;
  border-top-right-radius: 7px;
}
.sec-title {
  font-family: var(--ff-serif); font-weight: 500;
  font-size: clamp(25px, 3.1vw, 38px); line-height: 1.6; letter-spacing: .08em;
}
.sec-lead { margin-top: 24px; max-width: 36em; color: var(--c-mute); }
.sec--dark .sec-lead { color: var(--c-mute-dark); }
.sec-head--center .sec-lead { margin-inline: auto; }

/* ---------- ボタン ---------- */
.btn {
  --btn-bg: transparent; --btn-fg: currentColor; --btn-bd: currentColor;
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 14px;
  min-height: 56px; padding: 0 30px;
  font-size: 15px; font-weight: 500; letter-spacing: .1em; line-height: 1.4;
  background: var(--btn-bg); color: var(--btn-fg); border: 1px solid var(--btn-bd);
  overflow: hidden; isolation: isolate;
  transition: color .4s var(--ease), border-color .4s var(--ease), background-color .4s var(--ease);
}
/* 金属の反射が走る */
.btn::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(105deg, transparent 35%, rgba(255, 255, 255, .45) 50%, transparent 65%);
  transform: translateX(-120%);
  transition: transform .9s var(--ease);
}
.btn:hover::after { transform: translateX(120%); }
.btn__arrow { width: 22px; height: 8px; flex: none; transition: transform .4s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(4px); }
.btn--primary { --btn-bg: var(--c-champagne); --btn-fg: var(--c-lacquer); --btn-bd: var(--c-champagne); }
.btn--primary:hover { --btn-bg: var(--c-champagne-soft); --btn-bd: var(--c-champagne-soft); }
.btn--ghost { --btn-fg: var(--c-pearl); --btn-bd: rgba(246, 244, 241, .45); }
.btn--ghost:hover { --btn-bd: var(--c-champagne); --btn-fg: var(--c-champagne); }
.btn--dark { --btn-bg: var(--c-lacquer); --btn-fg: var(--c-pearl); --btn-bd: var(--c-lacquer); }
.btn--dark:hover { --btn-bg: var(--c-lacquer-3); }
.btn--outline { --btn-fg: var(--c-ink); --btn-bd: var(--c-ink); }
.btn--outline:hover { --btn-bg: var(--c-ink); --btn-fg: var(--c-pearl); }
.btn--block { width: 100%; }

.text-link {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 14px; letter-spacing: .12em;
  padding-bottom: 6px; border-bottom: 1px solid currentColor;
}
.text-link .btn__arrow { width: 18px; }
.text-link:hover .btn__arrow { transform: translateX(4px); }

/* ---------- ローダー ---------- */
.loader { display: none; }
/* JSが動く環境だけで出す。万一スクリプトが止まっても6秒で自動的に開く */
.js .loader {
  position: fixed; inset: 0; z-index: 900;
  display: grid; place-items: center;
  animation: loaderSafety .6s ease 6s forwards;
  background: var(--c-lacquer);
  transition: opacity .8s var(--ease), visibility .8s;
}
.loader__inner { display: grid; justify-items: center; gap: 28px; }
.loader__logo { width: 120px; opacity: 0; animation: loaderLogo 1s var(--ease-out) .1s forwards; }
.loader__pipe {
  position: relative; width: 168px; height: 2px;
  background: rgba(205, 174, 127, .2); overflow: hidden;
}
.loader__pipe::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, var(--c-champagne), #fff 70%, var(--c-champagne));
  transform: scaleX(var(--progress, 0)); transform-origin: left;
  transition: transform .5s var(--ease);
}
.loader.is-done { opacity: 0; visibility: hidden; }
@keyframes loaderSafety { to { opacity: 0; visibility: hidden; } }
@keyframes loaderLogo { from { opacity: 0; transform: translateY(10px); filter: blur(6px); } to { opacity: 1; transform: none; filter: none; } }

/* ---------- ヘッダー ---------- */
.header {
  position: fixed; inset: 0 0 auto; z-index: 500;
  height: var(--header-h); color: var(--c-pearl);
  transition: transform .5s var(--ease);
}
/* 背景は擬似要素に置く（backdrop-filterがfixedの子孫の基準を壊さないように） */
.header::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: rgba(28, 24, 21, .82);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--c-line-dark);
  opacity: 0; transition: opacity .5s var(--ease);
}
.header.is-solid::before { opacity: 1; }
.header__inner {
  height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px;
  width: min(100% - var(--gutter) * 2, 1320px); margin-inline: auto;
}
.brand { display: flex; align-items: center; gap: 14px; flex: none; }
.brand__logo { width: 56px; }
.brand__tag {
  font-size: 11px; letter-spacing: .16em; line-height: 1.5; color: var(--c-mute-dark);
  padding-left: 14px; border-left: 1px solid var(--c-line-dark);
}
.gnav__list { display: flex; align-items: center; gap: clamp(18px, 2.2vw, 34px); }
.gnav__link {
  position: relative; display: block; padding-block: 8px;
  font-size: 14px; letter-spacing: .12em;
}
.gnav__link::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 2px; height: 1px;
  background: var(--c-champagne); transform: scaleX(0); transform-origin: right;
  transition: transform .45s var(--ease);
}
.gnav__link:hover::after, .gnav__link[aria-current="page"]::after { transform: scaleX(1); transform-origin: left; }
.gnav__link[aria-current="page"] { color: var(--c-champagne); }
.gnav__cta { margin-left: 8px; }
.gnav__cta .btn { min-height: 44px; padding: 0 20px; font-size: 13px; }
.gnav__extra { display: none; }

.burger {
  display: none; position: relative; width: 48px; height: 48px; margin-right: -10px;
}
.burger span {
  position: absolute; left: 12px; right: 12px; height: 1.5px; background: currentColor;
  transition: transform .4s var(--ease), opacity .3s;
}
.burger span:nth-child(1) { top: 18px; }
.burger span:nth-child(2) { top: 24px; right: 20px; }
.burger span:nth-child(3) { top: 30px; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(35deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-35deg); }

@media (min-width: 1024px) {
  .header.is-hidden { transform: translateY(-100%); }
}
@media (max-width: 1023px) {
  :root { --header-h: 64px; }
  .brand__logo { width: 48px; }
  .burger { display: block; }
  .gnav {
    position: fixed; inset: 0; z-index: -2;
    display: flex; flex-direction: column; justify-content: center;
    padding: calc(var(--header-h) + 24px) var(--gutter) 40px;
    background: var(--c-lacquer);
    opacity: 0; visibility: hidden; transition: opacity .45s var(--ease), visibility .45s;
    overflow-y: auto;
  }
  .gnav.is-open { opacity: 1; visibility: visible; }
  .gnav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .gnav__item { border-bottom: 1px solid var(--c-line-dark); }
  .gnav__link { padding: 18px 4px; font-family: var(--ff-serif); font-size: 18px; }
  .gnav__link::after { display: none; }
  .gnav__cta { margin: 28px 0 0; border: 0; }
  .gnav__cta .btn { width: 100%; min-height: 56px; font-size: 15px; }
  .gnav__extra { display: grid; gap: 6px; margin-top: 28px; font-size: 13px; color: var(--c-mute-dark); }
  .gnav__extra a { color: var(--c-pearl); font-size: 20px; font-family: var(--ff-serif); letter-spacing: .08em; }
}
body.is-locked { overflow: hidden; }

/* ---------- 下層ページのバナー（three.jsの配管が背景で動く） ---------- */
.page-hero {
  position: relative; overflow: hidden;
  min-height: clamp(360px, 54vh, 520px);
  display: flex; align-items: flex-end;
  padding: calc(var(--header-h) + 48px) 0 clamp(48px, 7vw, 80px);
  color: var(--c-pearl);
  background:
    radial-gradient(60% 90% at 85% 20%, rgba(205, 174, 127, .22), transparent 70%),
    radial-gradient(40% 60% at 60% 100%, rgba(185, 189, 194, .10), transparent 70%),
    var(--c-lacquer);
}
.page-hero__canvas { position: absolute; inset: 0; }
.page-hero__canvas canvas { width: 100% !important; height: 100% !important; }
.page-hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(90deg, rgba(28, 24, 21, .85) 0%, rgba(28, 24, 21, .35) 55%, transparent 100%);
}
.page-hero .container { position: relative; z-index: 1; }
@media (max-width: 767px) {
  .page-hero::after { background: linear-gradient(0deg, rgba(28, 24, 21, .94) 0%, rgba(28, 24, 21, .72) 55%, rgba(28, 24, 21, .2) 100%); }
  .page-hero__canvas { opacity: .55; } /* 本文が大半を占めるので、配管は背景に退かせる */
}
.page-hero__label { margin-bottom: 14px; }
.page-hero__title {
  font-family: var(--ff-serif); font-weight: 500;
  font-size: clamp(32px, 4.6vw, 56px); line-height: 1.4; letter-spacing: .12em;
}
.page-hero__lead { margin-top: 18px; max-width: 34em; color: var(--c-mute-dark); }
/* sample.png（DEWALT）の太い黄帯を、細いシャンパンの帯に置き換えた縁取り */
.bars { position: absolute; left: 0; right: 0; height: 3px; background: var(--c-champagne); }
.bars--top { top: 0; }
.bars--bottom { bottom: 0; }

.breadcrumb { background: var(--c-lacquer-2); color: var(--c-mute-dark); font-size: 12px; }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 4px 12px; padding-block: 14px; }
.breadcrumb li + li::before { content: "/"; margin-right: 12px; opacity: .5; }
.breadcrumb a:hover { color: var(--c-champagne); }

/* ---------- 予約帯（sample.png の Join band） ---------- */
.reserve-band {
  position: relative; overflow: hidden;
  padding-block: clamp(72px, 10vw, 120px);
  background:
    radial-gradient(50% 120% at 50% 0%, rgba(205, 174, 127, .18), transparent 70%),
    var(--c-lacquer);
  color: var(--c-pearl); text-align: center;
}
.reserve-band .bars { left: var(--gutter); right: var(--gutter); height: 2px; }
.reserve-band .bars--top { top: 28px; }
.reserve-band .bars--bottom { bottom: 28px; }
.reserve-band__title {
  font-family: var(--ff-serif); font-weight: 500;
  font-size: clamp(24px, 3.2vw, 38px); line-height: 1.6; letter-spacing: .1em;
}
.reserve-band__text { margin: 18px auto 0; max-width: 34em; color: var(--c-mute-dark); }
.reserve-band__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-top: 36px; }
.reserve-band__actions .btn { min-width: 260px; }
@media (max-width: 599px) {
  .reserve-band__title { font-size: 21px; letter-spacing: .06em; }
  .reserve-band__actions .btn { min-width: 0; width: 100%; }
}

/* ---------- 連絡手段カード（sample.png の Support） ---------- */
.contact-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.contact-card {
  position: relative; display: flex; flex-direction: column;
  padding: 32px 26px 26px;
  background: var(--c-white); border: 1px solid var(--c-line);
}
.contact-card--primary { background: var(--c-lacquer); color: var(--c-pearl); border-color: var(--c-lacquer); }
.contact-card__rank {
  font-family: var(--ff-serif); font-size: 12px; letter-spacing: .16em; color: var(--c-brass);
}
.contact-card--primary .contact-card__rank { color: var(--c-champagne); }
.contact-card__icon { width: 34px; height: 34px; margin: 18px 0 20px; color: var(--c-brass); }
.contact-card--primary .contact-card__icon { color: var(--c-champagne); }
.contact-card__title { font-family: var(--ff-serif); font-size: 21px; font-weight: 500; letter-spacing: .08em; line-height: 1.5; }
.contact-card__text { margin: 12px 0 24px; font-size: 14px; line-height: 1.85; color: var(--c-mute); flex: 1; }
.contact-card--primary .contact-card__text { color: var(--c-mute-dark); }
.contact-card__tel { font-family: var(--ff-serif); font-size: 22px; letter-spacing: .06em; line-height: 1.4; }
.contact-card__sub { display: block; font-size: 12px; color: var(--c-mute); margin-top: 4px; }
.contact-card .btn { min-height: 50px; padding: 0 18px; font-size: 14px; width: 100%; }
@media (max-width: 1023px) { .contact-cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 599px) { .contact-cards { grid-template-columns: 1fr; } }

/* ---------- フッター ---------- */
.footer { background: var(--c-lacquer); color: var(--c-mute-dark); font-size: 14px; }
.footer__top { padding-block: clamp(64px, 8vw, 96px) 48px; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; }
.footer__logo { width: 96px; margin-bottom: 22px; }
.footer__addr { font-style: normal; line-height: 1.9; }
.footer__head {
  font-family: var(--ff-serif); font-size: 13px; letter-spacing: .2em;
  color: var(--c-champagne); margin-bottom: 18px;
}
.footer__links { display: grid; gap: 10px; }
.footer__links a { color: var(--c-pearl); transition: color .3s; }
.footer__links a:hover { color: var(--c-champagne); }
.footer__tel { font-family: var(--ff-serif); font-size: 22px; color: var(--c-pearl); letter-spacing: .06em; }
.footer__bottom { border-top: 1px solid var(--c-line-dark); }
.footer__bottom .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-block: 22px; font-size: 12px; }
.footer__bottom a:hover { color: var(--c-champagne); }
@media (max-width: 1023px) { .footer__grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 599px) { .footer__grid { grid-template-columns: 1fr; gap: 36px; } }

.to-top {
  position: fixed; right: 20px; bottom: 24px; z-index: 400;
  width: 52px; height: 52px; display: grid; place-items: center;
  background: var(--c-lacquer-2); color: var(--c-champagne); border: 1px solid var(--c-line-dark);
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity .4s var(--ease), transform .4s var(--ease), visibility .4s;
}
.to-top.is-shown { opacity: 1; visibility: visible; transform: none; }
.to-top svg { width: 14px; }

/* ---------- スマホ固定CTA（予約 → LINE → 電話 の優先順） ---------- */
.sp-cta { display: none; }
@media (max-width: 767px) {
  body { padding-bottom: 64px; }
  .sp-cta {
    position: fixed; inset: auto 0 0; z-index: 450;
    display: grid; grid-template-columns: 1.3fr 1fr 1fr;
    height: 64px; background: var(--c-lacquer); border-top: 1px solid var(--c-line-dark);
    padding-bottom: env(safe-area-inset-bottom);
  }
  .sp-cta a {
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
    font-size: 11px; letter-spacing: .08em; color: var(--c-pearl);
  }
  .sp-cta a + a { border-left: 1px solid var(--c-line-dark); }
  .sp-cta svg { width: 20px; height: 20px; color: var(--c-champagne); }
  .sp-cta .is-primary { background: var(--c-champagne); color: var(--c-lacquer); font-weight: 700; }
  .sp-cta .is-primary svg { color: var(--c-lacquer); }
  .to-top { bottom: 80px; right: 14px; width: 44px; height: 44px; }
}

/* ---------- 写真枠（支給写真で差し替え） ---------- */
.photo { position: relative; overflow: hidden; background: var(--c-sand); }
.photo img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- 表示アニメーション（控えめ・要所のみ） ---------- */
/* 隠す状態は .js があるときだけ（JS無効でも中身が見える） */
.js [data-reveal] {
  opacity: 0; transform: translateY(24px); filter: blur(4px);
  transition: opacity 1.2s var(--ease-out), transform 1.2s var(--ease-out), filter 1.2s var(--ease-out);
  transition-delay: var(--delay, 0s);
}
[data-reveal].is-in { opacity: 1; transform: none; filter: none; }
/* 写真はシャッターが上がるように現れる。clip-pathは監視対象の子に掛ける */
.js [data-reveal="photo"] { transform: none; filter: none; opacity: 1; }
.js [data-reveal="photo"] > * {
  clip-path: inset(100% 0 0 0);
  transition: clip-path 1.4s var(--ease-out);
  transition-delay: var(--delay, 0s);
}
[data-reveal="photo"].is-in > * { clip-path: inset(0 0 0 0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; transition-delay: 0s !important; }
  .js [data-reveal], .js [data-reveal="photo"] > * { opacity: 1; transform: none; filter: none; clip-path: none; }
}