/* =============================================================================
   TINAN — Brand / Corporate Site v2
   Aesthetic: All-white / Kinetic typography / Curiosity-driven
   ★配色・タイポは下の :root 変数で一元管理（差し替え可）
   ★アニメーションは GSAP（main.js）。CSS は「最終状態」を定義し、
     GSAP が from() で初期状態を作る方式 → JS無効環境でも全て表示される。
   ========================================================================== */

:root {
  /* --- Color（オールホワイト基調。アクセントは最小限）--- */
  --paper:      #ffffff;   /* ベース：純白 */
  --paper-2:    #f5f4f1;   /* 淡いグレー（面の差し） */
  --ink:        #101012;   /* ニアブラック */
  --ink-soft:   #2a2a2c;
  --gray-500:   #777672;
  --gray-400:   #9b9994;
  --gray-300:   #c8c6c0;
  --line:       rgba(16, 16, 18, 0.14);
  /* アクセント：抑えたラスト（再生・大地を想起）。使用は最小限。 */
  --accent:     #9c5a34;

  /* --- Typography --- */
  --font-display: "Archivo Expanded", "Zen Kaku Gothic New", sans-serif;
  --font-body:    "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", system-ui, sans-serif;
  --font-mono:    "IBM Plex Mono", ui-monospace, monospace;

  /* --- Layout --- */
  --shell:      1280px;
  --gutter:     clamp(1.25rem, 5vw, 5rem);
  --header-h:   76px;

  --ease:       cubic-bezier(0.22, 1, 0.36, 1);
}

/* --- Reset ------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html {
  scroll-behavior: smooth; /* Lenis 有効時は JS がインラインstyleで無効化 */
  -webkit-text-size-adjust: 100%;
}
/* Lenis 公式推奨：Lenis が root に付与するクラスで競合を確実に排除 */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.75;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
body.menu-open { overflow: hidden; }
img, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul, ol { list-style: none; padding: 0; }

/* アンカー着地位置を固定ヘッダー分オフセット */
[id] { scroll-margin-top: calc(var(--header-h) + 12px); }

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: fixed;
  top: -100%;
  left: 1rem;
  z-index: 300;
  background: var(--ink);
  color: var(--paper);
  padding: 0.6rem 1rem;
  font-size: 0.85rem;
}
.skip-link:focus { top: 1rem; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* =============================================================================
   Typography primitives
   ========================================================================== */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gray-500);
  display: flex;
  align-items: center;
  gap: 0.9em;
  margin-bottom: 1.6rem;
}
.eyebrow .idx { color: var(--accent); font-weight: 500; }

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 4.4vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
}

.lead-text {
  font-size: clamp(1rem, 1.4vw, 1.18rem);
  line-height: 2;
  color: var(--ink-soft);
}

/* =============================================================================
   Header：左上 TINAN のみ／右上 三本線
   ========================================================================== */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 210; /* メニューオーバーレイ(200)より上 */
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: clamp(1.25rem, 3.5vw, 3rem);
  color: var(--ink);
  transition: color .5s var(--ease);
  pointer-events: none; /* 帯自体は透過。中身だけ操作可能に */
}
.site-header > * { pointer-events: auto; }
body.menu-open .site-header { color: var(--paper); } /* オーバーレイ(黒)上では白に */

.brand { display: flex; align-items: center; }
.brand__mark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 0.14em;
}
/* ロゴ画像モード（config.logo 設定時）: テキストの代わりに画像を表示 */
.brand__mark--img { display: inline-flex; align-items: center; }
.brand__img { height: 1.5em; width: auto; display: block; }
.site-footer__brand .brand__img { height: 1.4em; }
/* 白ページ上は dark ロゴ、メニュー(黒)上は light ロゴを表示 */
.brand__img--light { display: none; }
.brand__img--dark { display: block; }
body.menu-open .site-header .brand__img--dark { display: none; }
body.menu-open .site-header .brand__img--light { display: block; }

/* --- 三本線メニューボタン --- */
.menu-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 48px; height: 48px;
  background: none;
  border: none;
  padding: 12px;
}
.menu-btn span {
  display: block;
  height: 1.5px;
  width: 100%;
  background: currentColor;
  transition: transform .45s var(--ease), opacity .3s var(--ease);
}
.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* =============================================================================
   全画面オーバーレイメニュー
   ========================================================================== */
.menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-102%);
  transition: transform .7s var(--ease);
  visibility: hidden;
}
.menu-overlay.is-open {
  transform: translateY(0);
  visibility: visible;
}
.menu {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: clamp(2rem, 6vh, 4rem);
  padding: calc(var(--header-h) + 1rem) clamp(1.5rem, 8vw, 8rem) 2.5rem;
  overflow-y: auto;
}
.menu__list { display: flex; flex-direction: column; }
.menu__item a {
  display: flex;
  align-items: baseline;
  gap: clamp(1rem, 2.5vw, 2rem);
  padding: clamp(0.5rem, 1.6vh, 1rem) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  /* スタッガー出現（CSSのみで実装。JS不要） */
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .5s var(--ease), transform .6s var(--ease);
}
.menu-overlay.is-open .menu__item a { opacity: 1; transform: none; }
.menu-overlay.is-open .menu__item:nth-child(1) a { transition-delay: .18s; }
.menu-overlay.is-open .menu__item:nth-child(2) a { transition-delay: .24s; }
.menu-overlay.is-open .menu__item:nth-child(3) a { transition-delay: .30s; }
.menu-overlay.is-open .menu__item:nth-child(4) a { transition-delay: .36s; }
.menu-overlay.is-open .menu__item:nth-child(5) a { transition-delay: .42s; }
.menu-overlay.is-open .menu__item:nth-child(6) a { transition-delay: .48s; }

.menu__idx {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--accent);
}
.menu__en {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.7rem, 4.6vh, 3rem);
  letter-spacing: 0.02em;
  line-height: 1.15;
  transition: color .3s var(--ease), transform .4s var(--ease);
}
.menu__item a:hover .menu__en { color: var(--gray-300); transform: translateX(8px); }
.menu__ja {
  font-size: 0.78rem;
  color: var(--gray-400);
  letter-spacing: 0.1em;
}
@media (max-width: 640px) { .menu__ja { display: none; } }

.menu__foot {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  opacity: 0;
  transition: opacity .5s var(--ease) .55s;
}
.menu-overlay.is-open .menu__foot { opacity: 1; }
.menu__company {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--gray-400);
}
.menu__privacy {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--gray-300);
  border-bottom: 1px solid rgba(255, 255, 255, 0.25);
  padding-bottom: 0.2rem;
}
.menu__privacy:hover { color: var(--paper); }

/* =============================================================================
   Intro：開いた瞬間の“純白の余白”（1画面分）
   ========================================================================== */
.intro {
  position: relative;
  min-height: 100svh;
  background: var(--paper);
}
/* イントロ下部のスクロール指示（hero__scroll のスタイルを流用） */
.intro__scroll { left: clamp(1.25rem, 3.5vw, 3rem); bottom: 1.8rem; }

/* =============================================================================
   Hero：オールホワイト・巨大タイポ・浮遊オブジェクト
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--paper);
  overflow: hidden;
}
.hero__word {
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3.4rem, 15.5vw, 15rem);
  line-height: 1;
  letter-spacing: 0.02em;
  display: flex;
  user-select: none;
}
.hero__cell { display: inline-block; overflow: hidden; padding-bottom: 0.06em; }
.hero__letter { display: inline-block; }
@media (max-width: 640px) {
  /* SPでも「巨大タイポ」の迫力を保つ（画面幅の約7割） */
  .hero__word { font-size: clamp(4.2rem, 24vw, 8rem); }
}

/* 浮遊する「モノ」たち（★実写素材が来たらこのレイヤーを差し替え可） */
.hero__objects { position: absolute; inset: 0; z-index: 0; }
.obj { position: absolute; }
.obj--ring   { width: clamp(90px, 12vw, 180px);  top: 14%;  left: 8%;   color: var(--gray-300); }
.obj--square { width: clamp(40px, 5vw, 72px);    top: 22%;  right: 14%; color: var(--paper-2); }
.obj--tri    { width: clamp(70px, 9vw, 130px);   bottom: 18%; left: 16%; color: var(--gray-300); }
.obj--arc    { width: clamp(100px, 13vw, 190px); bottom: 12%; right: 9%; color: var(--gray-400); }
.obj--cross  { width: clamp(34px, 4vw, 56px);    top: 55%;  left: 45%;  color: var(--gray-300); }
.obj--dot    { width: clamp(18px, 2.2vw, 30px);  top: 38%;  right: 30%; color: var(--accent); opacity: 0.5; }
.obj--square { opacity: 0.9; }

.hero__scroll {
  position: absolute;
  left: clamp(1.25rem, 3.5vw, 3rem);
  bottom: 1.8rem;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--gray-400);
}
.hero__scroll-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.3em;
}
.hero__scroll-line {
  position: relative;
  width: 60px; height: 1px;
  background: var(--line);
  overflow: hidden;
}
.hero__scroll-line::after {
  content: "";
  position: absolute; inset: 0;
  background: var(--ink);
  transform: translateX(-100%);
  animation: scrollLine 2.4s var(--ease) infinite;
}
@keyframes scrollLine {
  0%   { transform: translateX(-100%); }
  50%  { transform: translateX(0); }
  100% { transform: translateX(100%); }
}

/* =============================================================================
   STORY（ACRONYMリビール）：T→THINGS, I→INTO …
   GSAP ScrollTrigger（PCはpin+scrub）。JS無効時はそのまま全文表示。
   ========================================================================== */
.story {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: var(--paper);
}
.story__q {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  color: var(--gray-400);
  margin-bottom: clamp(1.5rem, 4vh, 3rem);
}
.story__word {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 8.5vh, 6.2rem);
  line-height: 1.06;
  letter-spacing: 0.01em;
  display: flex;
  align-items: baseline;
}
.story__cap { color: var(--ink); }
.story__rest { display: inline-block; overflow: hidden; }
.story__rest-in { display: inline-block; color: var(--gray-300); }
.story__tagline {
  margin-top: clamp(1.8rem, 5vh, 3.2rem);
  font-size: clamp(1rem, 1.8vw, 1.3rem);
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--ink);
}

/* =============================================================================
   Section base
   ========================================================================== */
.section {
  padding-block: clamp(5rem, 12vw, 9.5rem);
  position: relative;
}
.section-head { margin-bottom: clamp(2.5rem, 5vw, 4rem); }

/* =============================================================================
   Placeholder media（写真差し替え前提・白基調のプレースホルダー）
   ★実装時：この figure を <picture>/<img> または <video> に差し替え。
     data-ph="…" の文言が、想定している画の内容です。
   ========================================================================== */
[data-ph] {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(110% 90% at 80% 10%, rgba(190, 188, 182, 0.35), transparent 55%),
    linear-gradient(135deg, #ececea 0%, #dddbd6 55%, #c9c7c1 100%);
  color: rgba(20, 20, 22, 0.55);
  isolation: isolate;
}
[data-ph]::before { /* グレイン */
  content: "";
  position: absolute; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
  z-index: -1;
}
[data-ph]::after { /* 想定内容のキャプション */
  content: attr(data-ph);
  position: absolute;
  left: 1.4rem; bottom: 1.3rem;
  right: 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  line-height: 1.5;
  opacity: 0.85;
}
.ph__tag {
  position: absolute;
  top: 1.1rem; left: 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.24em;
  padding: 0.3rem 0.6rem;
  border: 1px solid currentColor;
  opacity: 0.7;
}

/* =============================================================================
   ABOUT
   ========================================================================== */
.about__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: start;
}
.about__lead .section-title { margin-top: 0.4rem; }
.namesake {
  margin-top: 2.6rem;
  padding: 2rem 2.2rem;
  border: 1px solid var(--line);
  background: var(--paper-2);
}
.namesake__key {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 1rem;
}
.namesake__en {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.05rem, 2vw, 1.5rem);
  letter-spacing: 0.01em;
  margin-bottom: 1.1rem;
  line-height: 1.3;
}
.namesake__en em { font-style: normal; color: var(--accent); }
.namesake__ja {
  font-size: 0.95rem;
  color: var(--ink-soft);
  line-height: 1.95;
}
.meta-en {
  margin-top: 2rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--gray-500);
}
.media-band {
  margin-top: clamp(3rem, 7vw, 6rem);
  height: clamp(260px, 46vw, 560px);
  width: 100%;
}

@media (max-width: 820px) {
  .about__grid { grid-template-columns: 1fr; gap: 2rem; }
}

/* =============================================================================
   BUSINESS
   ========================================================================== */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.2rem, 2.4vw, 2rem);
}
.card {
  border: 1px solid var(--line);
  background: var(--paper);
  display: flex;
  flex-direction: column;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 50px -30px rgba(16, 16, 18, 0.35);
}
.card__media { aspect-ratio: 4 / 3; width: 100%; }
.card__body { padding: 1.8rem 1.7rem 2rem; display: flex; flex-direction: column; height: 100%; }
.card__no {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.2em;
  margin-bottom: 0.8rem;
}
.card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.32rem;
  letter-spacing: 0.01em;
  line-height: 1.15;
}
.card__jp {
  font-size: 0.82rem;
  color: var(--gray-500);
  letter-spacing: 0.06em;
  margin-top: 0.4rem;
  margin-bottom: 1.1rem;
}
.card__desc {
  font-size: 0.92rem;
  line-height: 1.9;
  color: var(--ink-soft);
}
.card__list {
  margin-top: 1.4rem;
  padding-top: 1.3rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.card__list li {
  font-size: 0.82rem;
  color: var(--gray-500);
  padding-left: 1.1rem;
  position: relative;
}
.card__list li::before {
  content: "";
  position: absolute; left: 0; top: 0.65em;
  width: 5px; height: 1px;
  background: var(--accent);
}
.business__note {
  margin-top: clamp(2.5rem, 5vw, 4rem);
  max-width: 62ch;
  font-size: 0.95rem;
  line-height: 2;
  color: var(--gray-500);
  border-left: 2px solid var(--accent);
  padding-left: 1.5rem;
}

@media (max-width: 860px) {
  .cards { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; }
}

/* =============================================================================
   MESSAGE（白基調）
   ========================================================================== */
.message { background: var(--paper-2); }
.message__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 6vw, 5.5rem);
  align-items: center;
}
.message__portrait {
  aspect-ratio: 3 / 4;
  width: 100%;
  max-width: 420px;
}
.message__text {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.3rem, 2.7vw, 2.15rem);
  line-height: 1.55;
  letter-spacing: 0.01em;
  color: var(--ink);
}
.message__text p + p { margin-top: 1.2rem; }
.message__sign {
  margin-top: 2.4rem;
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  color: var(--gray-500);
}
.message__sign [data-site] {
  font-size: 1.15rem;
  color: var(--ink);
  letter-spacing: 0.14em;
}
@media (max-width: 820px) {
  .message__grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .message__portrait { max-width: 300px; }
}

/* =============================================================================
   NEWS
   罫線は ::after で描画し、GSAP(onEnter)が .is-drawn を付与して伸ばす。
   JS無効時も .no-motion で常時表示。
   ========================================================================== */
.news__list { border-top: 1px solid var(--line); }
.news__item { position: relative; }
.news__item::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--line);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.1s var(--ease) .15s;
}
.news__item.is-drawn::after,
html.no-motion .news__item::after { transform: scaleX(1); }
.news__link {
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  align-items: center;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding: 1.6rem 0.5rem;
  transition: padding .4s var(--ease), background .4s var(--ease);
}
.news__link:hover { padding-inline: 1.3rem 0.5rem; background: var(--paper-2); }
.news__date {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  color: var(--gray-500);
}
.news__cat {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--line);
  color: var(--gray-500);
}
.news__title { font-size: 0.98rem; font-weight: 500; }
.news__arrow { color: var(--accent); transition: transform .4s var(--ease); }
.news__link:hover .news__arrow { transform: translateX(6px); }

@media (max-width: 640px) {
  .news__link {
    grid-template-columns: auto 1fr auto;
    gap: 1rem 1.2rem;
  }
  .news__cat { grid-row: 1; }
  .news__title { grid-column: 1 / -1; grid-row: 2; }
}

/* =============================================================================
   COMPANY
   ========================================================================== */
.company__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.5fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.company__table { border-top: 1px solid var(--line); }
.company__row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 1.5rem;
  padding: 1.35rem 0.4rem;
  border-bottom: 1px solid var(--line);
}
.company__row dt {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--gray-500);
  padding-top: 0.15rem;
}
.company__row dd {
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--ink);
}
/* 未確定（プレースホルダー）表記を淡く */
.company__row dd.is-pending { color: var(--gray-400); font-style: italic; }

@media (max-width: 820px) {
  .company__grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .company__row { grid-template-columns: 1fr; gap: 0.35rem; }
}

/* =============================================================================
   CONTACT（白基調）
   ========================================================================== */
.contact { background: var(--paper-2); }
.contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: start;
}
.contact__lead {
  margin-top: 1.6rem;
  color: var(--gray-500);
  font-size: 1rem;
  line-height: 2;
}
.contact__direct {
  margin-top: 2.6rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.contact__direct-item { display: flex; align-items: baseline; gap: 1.2rem; }
.contact__direct-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  color: var(--gray-400);
  width: 3rem;
}
.contact__direct-item a {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.1rem, 2.2vw, 1.5rem);
  letter-spacing: 0.02em;
  color: var(--ink);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease);
}
.contact__direct-item a:hover { border-bottom-color: var(--accent); }

/* --- Form --- */
.contact__form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem 1.4rem;
}
.field { display: flex; flex-direction: column; gap: 0.6rem; }
.field--full { grid-column: 1 / -1; }
.field label {
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--gray-500);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.req, .opt {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  padding: 0.15rem 0.45rem;
  border-radius: 2px;
}
.req { background: var(--accent); color: var(--paper); }
.opt { border: 1px solid var(--line); color: var(--gray-400); }

.field input,
.field select,
.field textarea {
  font: inherit;
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--paper);
  border: none;
  border-bottom: 1px solid var(--line);
  padding: 0.7rem 0.6rem;
  transition: border-color .3s var(--ease);
}
.field textarea { resize: vertical; border: 1px solid var(--line); padding: 0.9rem; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--ink);
}
.field select { appearance: none; cursor: pointer; }
.field input::placeholder,
.field textarea::placeholder { color: var(--gray-400); }
.field input:user-invalid,
.field textarea:user-invalid,
.field select:user-invalid { border-color: var(--accent); }

.field--check .check {
  flex-direction: row;
  align-items: flex-start;
  gap: 0.7rem;
  color: var(--ink-soft);
  font-size: 0.88rem;
  cursor: pointer;
}
.check input { width: 1.1rem; height: 1.1rem; margin-top: 0.2rem; accent-color: var(--accent); flex-shrink: 0; }
.check a { color: var(--ink); border-bottom: 1px solid var(--gray-400); }

.recaptcha-placeholder:empty { display: none; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  padding: 1rem 2rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: background .3s var(--ease), color .3s var(--ease), transform .3s var(--ease);
}
.btn:hover { background: transparent; color: var(--ink); transform: translateY(-2px); }
.btn__arrow { transition: transform .3s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(5px); }
.btn:disabled { opacity: 0.5; cursor: wait; }

.form-status {
  grid-column: 1 / -1;
  font-size: 0.9rem;
  min-height: 1.2em;
}
.form-status.is-error { color: #b04a2a; }
.form-status.is-success { color: var(--ink); }

@media (max-width: 820px) {
  .contact__grid { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .contact__form { grid-template-columns: 1fr; }
}

/* =============================================================================
   Footer（白基調）
   ========================================================================== */
.site-footer {
  background: var(--paper);
  color: var(--ink);
  padding-block: clamp(3rem, 6vw, 5rem);
  border-top: 1px solid var(--line);
}
.site-footer__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2.5rem 4rem;
  align-items: start;
}
.site-footer__brand .brand__mark { font-size: 1.7rem; }
.site-footer__tag {
  margin-top: 0.9rem;
  font-size: 0.85rem;
  color: var(--gray-500);
  letter-spacing: 0.04em;
}
.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.8rem;
  justify-content: flex-end;
}
.site-footer__nav a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--gray-500);
  transition: color .3s var(--ease);
}
.site-footer__nav a:hover { color: var(--ink); }
.site-footer__copy {
  grid-column: 1 / -1;
  border-top: 1px solid var(--line);
  padding-top: 1.8rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--gray-400);
}
@media (max-width: 700px) {
  .site-footer__inner { grid-template-columns: 1fr; }
  .site-footer__nav { justify-content: flex-start; }
}

/* =============================================================================
   Motion policy
   - CSS は常に「最終状態」。GSAP が from() で動きを付ける。
   - reduced-motion／JS無効時は何もせず即・全表示（何も隠れない）。
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  .hero__scroll-line::after { animation: none; }
  .menu-overlay,
  .menu__item a,
  .menu__foot { transition-duration: 0.01s; transition-delay: 0s; }
}

/* =============================================================================
   404 page
   ========================================================================== */
.notfound {
  min-height: 100svh;
  display: flex;
  align-items: center;
  text-align: left;
  padding-top: var(--header-h);
}
.notfound__code {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(6rem, 22vw, 16rem);
  line-height: 1;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 0.08em;
  color: var(--ink);
}
.notfound__zero { /* 「0」= 次の場所を探すモノ（リング） */
  width: 0.72em; height: 0.72em;
  border: 0.055em solid var(--gray-300);
  border-radius: 50%;
  display: inline-block;
}
.notfound__title {
  margin-top: 1.6rem;
  font-size: clamp(1.1rem, 2.4vw, 1.6rem);
  font-weight: 700;
  letter-spacing: 0.04em;
}
.notfound__text {
  margin-top: 1rem;
  color: var(--gray-500);
  font-size: 0.95rem;
  line-height: 2;
}
.notfound__btn { margin-top: 2.4rem; }

/* =============================================================================
   Page transition（ページ間フェード）
   main.js が内部リンク遷移時に .is-leaving を付与。reduced-motion では無効。
   ========================================================================== */
@media (prefers-reduced-motion: no-preference) {
  body { animation: pageIn .45s ease both; }
  body.is-leaving { opacity: 0; transition: opacity .28s ease; }
}
@keyframes pageIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* =============================================================================
   Hero note（トップ右下の極小一行コピー）
   ★クライアント要望は「トップに文字なし」のため既定は非表示。
     config.js の heroNote に文字列を入れると表示される（MTGのA/B用）。
   ========================================================================== */
.hero__note {
  position: absolute;
  right: clamp(1.25rem, 3.5vw, 3rem);
  bottom: 1.8rem;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--gray-400);
}

/* =============================================================================
   Privacy page
   ========================================================================== */
.legal {
  padding-top: calc(var(--header-h) + clamp(3rem, 8vw, 6rem));
  padding-bottom: clamp(4rem, 10vw, 8rem);
}
.legal__head { margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.legal__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.1;
}
.legal__title-ja { margin-top: 0.6rem; font-size: 1rem; color: var(--gray-500); letter-spacing: 0.1em; }
.legal__body { max-width: 760px; }
.legal__lead { color: var(--ink-soft); line-height: 2; margin-bottom: 2.5rem; }
.legal__section { margin-bottom: 2.6rem; }
.legal__section h2 {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 1rem;
  padding-left: 1rem;
  border-left: 3px solid var(--accent);
}
.legal__section p { color: var(--ink-soft); line-height: 2; margin-bottom: 0.8rem; }
.legal__section ul { display: flex; flex-direction: column; gap: 0.6rem; margin: 0.5rem 0; }
.legal__section li {
  padding-left: 1.2rem;
  position: relative;
  color: var(--ink-soft);
  line-height: 1.9;
}
.legal__section li::before {
  content: "";
  position: absolute; left: 0; top: 0.75em;
  width: 6px; height: 1px; background: var(--accent);
}
.legal__meta {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--gray-500);
  letter-spacing: 0.04em;
}
.legal__back {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 2.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.3rem;
}
.legal__back:hover { border-color: var(--accent); }