/* Hallmark · macrostructure: bespoke · tone: austere / 和の余白 · anchor hue: 262 (紺)
 * 全ページ共通：リセット・ヘッダー・ドロワー・ローダー・下層ヘッダー・CTA帯・フッター・リビール
 */

/* ---------- reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { overflow-x: clip; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.95;
  letter-spacing: 0.04em;
  font-feature-settings: "palt";
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, p, ul, ol, dl, dd, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, video, svg { display: block; max-width: 100%; }
img, video { height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  font-style: normal;
  line-height: 1.5;
  letter-spacing: 0.12em;
  word-break: auto-phrase;
  overflow-wrap: anywhere;
  min-width: 0;
}
p { word-break: auto-phrase; line-break: strict; }
:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; }
::selection { background: var(--color-navy); color: var(--color-on-dark); }
[hidden] { display: none !important; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: var(--space-md); top: -100px; z-index: calc(var(--z-loader) + 1);
  background: var(--color-white); color: var(--color-navy); padding: var(--space-xs) var(--space-md);
}
.skip-link:focus { top: var(--space-md); }

.container { width: min(100% - var(--gutter) * 2, var(--max-w)); margin-inline: auto; }
.icon { width: 1.25em; height: 1.25em; flex: none; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.num { font-family: var(--font-latin); font-variant-numeric: lining-nums; }
.latin { font-family: var(--font-latin); font-weight: 500; letter-spacing: 0.18em; }

/* ---------- 見出しの型 ---------- */
.sec-title { font-size: var(--text-3xl); color: var(--color-navy); }
.sec-title--light { color: var(--color-on-dark); }
.sec-lead { margin-top: var(--space-lg); max-width: 34em; color: var(--color-muted); }
.tate { writing-mode: vertical-rl; text-orientation: mixed; }

/* ---------- ボタン ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-sm);
  min-height: 56px; padding: 0 var(--space-xl);
  border: var(--rule-hair) solid transparent; border-radius: var(--radius-0);
  font-family: var(--font-display); font-weight: 500; font-size: var(--text-base);
  letter-spacing: 0.14em; white-space: nowrap;
  transition: background-color var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.btn:active { transform: translateY(1px); }
.btn .icon { width: 1.3em; height: 1.3em; }
.btn--line { background: var(--color-accent); color: var(--color-white); }
.btn--line .icon--line { color: var(--color-white); }
.btn--line:hover { background: var(--color-accent-deep); }
.btn--ghost { border-color: var(--color-line-dark); color: var(--color-on-dark); }
.btn--ghost:hover { background: var(--color-on-dark); color: var(--color-navy); border-color: var(--color-on-dark); }
.btn--outline { border-color: var(--color-navy); color: var(--color-navy); }
.btn--outline:hover { background: var(--color-navy); color: var(--color-on-dark); }
.btn[aria-disabled="true"] { cursor: default; }

.text-link {
  display: inline-flex; align-items: center; gap: var(--space-sm);
  font-family: var(--font-display); letter-spacing: 0.14em; color: var(--color-navy);
  padding-block: var(--space-xs); white-space: nowrap;
}
.text-link::after {
  content: ""; width: 48px; height: 1px; background: currentColor;
  transform-origin: left; transition: transform var(--dur-base) var(--ease-out);
}
.text-link:hover::after { transform: scaleX(1.5); }
.text-link--light { color: var(--color-on-dark); }

/* ---------- ロゴ枠（差し替えはこの枠の中身だけ） ---------- */
.logo-slot {
  display: block; flex: none; aspect-ratio: 1; width: 48px;
  background: var(--color-paper-2); overflow: hidden;
}
.logo-slot img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- ローダー（紺墨の幕 → 細い線 → 中心から墨がにじむように開く） ---------- */
.loader {
  position: fixed; inset: 0; z-index: var(--z-loader);
  background: var(--color-ink); color: var(--color-on-dark);
  animation: loader-failsafe 0s linear 12s forwards;
}
.loader.is-canvas { background: transparent; }
.loader__ink { position: absolute; inset: 0; width: 100%; height: 100%; }
.loader__mark {
  position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; gap: var(--space-xl);
  transition: opacity 700ms var(--ease-out);
}
.loader .logo-slot { width: 56px; opacity: 0; animation: loader-fade 1200ms var(--ease-out) 150ms forwards; }
@keyframes loader-fade { to { opacity: 0.88; } }
.loader__bar { width: 88px; height: 1px; background: var(--color-line-dark); overflow: hidden; }
.loader__bar span {
  display: block; height: 100%; background: var(--color-on-dark);
  transform: scaleX(var(--p, 0)); transform-origin: left; transition: transform 1.1s var(--ease-out);
}
.loader.is-phase2 .loader__mark { opacity: 0; }
.loader.is-skip { display: none; }
@keyframes loader-failsafe { to { visibility: hidden; } }

/* ---------- ヘッダー ---------- */
.header {
  position: fixed; inset: 0 0 auto; z-index: var(--z-header);
  color: var(--color-on-dark);
  transition: transform var(--dur-base) var(--ease-out);
}
.header::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: var(--color-ink); opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
}
.header.is-solid::before { opacity: 0.94; }
.header.is-menu { z-index: calc(var(--z-drawer) + 1); }
.header.is-menu::before { opacity: 0; }
.header__inner {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-lg);
  height: 72px; padding-inline: var(--gutter);
}
.brand { display: flex; align-items: center; gap: var(--space-sm); min-width: 0; }
.brand .logo-slot { width: 44px; }
.brand__name { display: grid; line-height: 1.3; }
.brand__name b { font-family: var(--font-display); font-weight: 600; font-size: 1.1875rem; letter-spacing: 0.2em; white-space: nowrap; }
.brand__name small { font-size: 0.6875rem; letter-spacing: 0.2em; color: var(--color-on-dark-muted); white-space: nowrap; }
.gnav { display: none; }
.gnav ul { display: flex; align-items: center; gap: clamp(1rem, 2vw, 2.25rem); }
.gnav a {
  position: relative; display: block; padding-block: var(--space-xs);
  font-family: var(--font-display); font-size: 0.9375rem; letter-spacing: 0.14em; white-space: nowrap;
}
.gnav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 2px; height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: right; transition: transform var(--dur-base) var(--ease-out);
}
.gnav a:hover::after, .gnav a[aria-current="page"]::after { transform: scaleX(1); transform-origin: left; }
.header__cta { display: none; min-height: 44px; padding-inline: var(--space-lg); font-size: var(--text-sm); }
.menu-btn {
  display: grid; place-items: center; width: 48px; height: 48px; margin-right: calc(var(--space-xs) * -1);
  position: relative; z-index: calc(var(--z-drawer) + 1);
}
.menu-btn .icon { width: 28px; height: 28px; }
.menu-btn .icon--close { display: none; }
.menu-btn[aria-expanded="true"] .icon--open { display: none; }
.menu-btn[aria-expanded="true"] .icon--close { display: block; }

@media (min-width: 1024px) {
  .gnav { display: block; }
  .header__cta { display: inline-flex; }
  .menu-btn { display: none; }
  .header__nav-wrap { display: flex; align-items: center; gap: clamp(1.25rem, 2.4vw, 2.5rem); }
}

/* ---------- ドロワー ---------- */
.drawer {
  position: fixed; inset: 0; z-index: var(--z-drawer);
  display: grid; align-content: center; gap: var(--space-2xl);
  padding: 96px var(--gutter) var(--space-2xl);
  background: var(--color-ink); color: var(--color-on-dark);
  opacity: 0; visibility: hidden;
  transition: opacity var(--dur-base) var(--ease-out), visibility 0s linear var(--dur-base);
}
.drawer.is-open { opacity: 1; visibility: visible; transition: opacity var(--dur-base) var(--ease-out); }
.drawer ul { display: grid; gap: var(--space-xs); }
.drawer a:not(.btn) { display: block; padding-block: var(--space-sm); font-family: var(--font-display); font-size: var(--text-xl); letter-spacing: 0.16em; }
.drawer .btn { width: 100%; }
.drawer__tel { display: grid; gap: var(--space-2xs); }
.drawer__tel small { color: var(--color-on-dark-muted); font-size: var(--text-sm); }
body.is-locked { overflow: hidden; }

/* ---------- 下層ページのヘッダー ---------- */
.page-hero {
  position: relative; isolation: isolate; overflow: hidden;
  display: grid; align-items: end;
  min-height: clamp(360px, 58vh, 560px);
  padding: 120px 0 var(--space-3xl);
  background: var(--color-ink); color: var(--color-on-dark);
}
.page-hero__bg { position: absolute; inset: 0; z-index: -2; }
.page-hero__bg img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.06); transition: transform 2.4s var(--ease-out); }
.is-ready .page-hero__bg img { transform: scale(1); }
.page-hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, var(--color-veil) 0%, var(--color-veil-strong) 100%);
}
.page-hero__inner { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-xl); }
.page-hero h1 { font-size: var(--text-display); letter-spacing: 0.16em; line-height: 1.3; }
.page-hero__en { color: var(--color-on-dark-muted); font-size: var(--text-lg); margin-top: var(--space-sm); }
.page-hero__lead { max-width: 26em; color: var(--color-on-dark-muted); font-size: var(--text-sm); }
@media (max-width: 767px) {
  .page-hero__inner { flex-direction: column; align-items: flex-start; }
}

.breadcrumb { padding-block: var(--space-md); font-size: var(--text-xs); color: var(--color-muted); }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: var(--space-xs); }
.breadcrumb li + li::before { content: "/"; margin-right: var(--space-xs); color: var(--color-line); }
.breadcrumb a { text-decoration: underline; text-underline-offset: 3px; }

/* ---------- CTA 帯（全ページ共通の締め） ---------- */
.cta {
  position: relative; isolation: isolate; overflow: hidden;
  padding-block: var(--section-y);
  background: var(--color-ink); color: var(--color-on-dark);
}
.cta__bg { position: absolute; inset: 0; z-index: -2; }
.cta__bg img { width: 100%; height: 100%; object-fit: cover; }
.cta::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(90deg, var(--color-veil-strong) 0%, var(--color-veil-strong) 40%, var(--color-veil) 100%);
}
.cta__inner { display: grid; gap: var(--space-2xl); align-items: center; }
.cta h2 { font-size: var(--text-3xl); }
.cta__body { margin-top: var(--space-lg); color: var(--color-on-dark-muted); max-width: 26em; }
.cta__actions { display: grid; gap: var(--space-lg); }
.cta__actions .btn { width: 100%; }
.tel-block { display: grid; gap: var(--space-2xs); }
.tel-block__num {
  display: inline-flex; align-items: center; gap: var(--space-sm);
  font-family: var(--font-latin); font-size: clamp(2rem, 1.5rem + 2vw, 2.75rem); font-weight: 500;
  letter-spacing: 0.06em; line-height: 1.2; font-variant-numeric: lining-nums; white-space: nowrap;
}
.tel-block__num .icon { width: 0.8em; height: 0.8em; }
.tel-block small { color: var(--color-on-dark-muted); font-size: var(--text-sm); }
.tel-block__label { margin-left: var(--space-sm); font-family: var(--font-body); font-size: var(--text-sm); letter-spacing: 0.1em; color: var(--color-on-dark-muted); }
.btn__note { font-family: var(--font-body); font-size: var(--text-xs); color: var(--color-on-dark-muted); }
@media (min-width: 900px) {
  .cta__inner { grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: var(--space-4xl); }
}

/* ---------- フッター ---------- */
.footer { background: var(--color-ink); color: var(--color-on-dark); padding-block: var(--space-3xl) var(--space-xl); border-top: var(--rule-hair) solid var(--color-line-dark); }
.footer__top { display: grid; gap: var(--space-2xl); }
.footer__brand { display: flex; gap: var(--space-lg); align-items: flex-start; }
.footer__brand .logo-slot { width: 88px; }
.footer__name { font-family: var(--font-display); font-size: var(--text-xl); letter-spacing: 0.2em; }
.footer__info { margin-top: var(--space-sm); font-size: var(--text-sm); color: var(--color-on-dark-muted); line-height: 1.9; }
.footer__info a { text-decoration: underline; text-underline-offset: 3px; }
.footer__nav ul { display: grid; grid-template-columns: repeat(2, minmax(0, max-content)); gap: var(--space-sm) var(--space-2xl); }
.footer__nav a { font-family: var(--font-display); font-size: var(--text-sm); letter-spacing: 0.14em; white-space: nowrap; }
.footer__nav a:hover { text-decoration: underline; text-underline-offset: 4px; }
.footer__copy { margin-top: var(--space-3xl); padding-top: var(--space-lg); border-top: var(--rule-hair) solid var(--color-line-dark); font-size: var(--text-xs); color: var(--color-on-dark-muted); }
@media (min-width: 900px) {
  .footer__top { grid-template-columns: minmax(0, 1fr) auto; align-items: end; }
  .footer__nav ul { grid-template-columns: repeat(3, max-content); }
}

/* ---------- スマホ追従CTA ---------- */
.mobile-cta {
  position: fixed; inset: auto 0 0; z-index: var(--z-mobile-cta);
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  padding-bottom: env(safe-area-inset-bottom);
  background: var(--color-ink);
}
.mobile-cta a {
  display: flex; align-items: center; justify-content: center; gap: var(--space-xs);
  min-height: 60px; font-family: var(--font-display); font-size: 0.8125rem; letter-spacing: 0.06em; color: var(--color-on-dark); white-space: nowrap;
}
.mobile-cta a:first-child { background: var(--color-accent); }
.mobile-cta a + a + a { border-left: var(--rule-hair) solid var(--color-line-dark); }
@media (max-width: 359px) { .mobile-cta a .icon { display: none; } }
@media (min-width: 1024px) { .mobile-cta { display: none; } }
@media (max-width: 1023px) { .footer { padding-bottom: calc(60px + var(--space-xl)); } }

/* ---------- スクロールリビール ---------- */
[data-reveal] { opacity: 0; transition: opacity var(--dur-reveal) var(--ease-out), transform var(--dur-reveal) var(--ease-out); transition-delay: calc(var(--i, 0) * 110ms); }
[data-reveal="up"] { transform: translateY(28px); }
[data-reveal="fade"] { transform: none; }
[data-reveal="mask"] { opacity: 1; }
[data-reveal="mask"] > img, [data-reveal="mask"] > video {
  clip-path: inset(0 0 100% 0); transform: scale(1.08);
  transition: clip-path 1.4s var(--ease-in-out), transform 2s var(--ease-out);
}
[data-reveal].is-in { opacity: 1; transform: none; }
[data-reveal="mask"].is-in > img, [data-reveal="mask"].is-in > video { clip-path: inset(0); transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 1ms !important; animation-iteration-count: 1 !important; transition-duration: 120ms !important; transition-delay: 0ms !important; }
  [data-reveal], [data-reveal="mask"] > img, [data-reveal="mask"] > video { opacity: 1; transform: none; clip-path: none; }
  .loader { display: none; }
}