/* =========================================================
   KINETO（架空サンプル）— style.css
   テイスト：エディトリアル × キネティック（凝ったモーション）
   ウォームブラック × クリーム × ビビッドオレンジ
   ========================================================= */

:root {
  --ink:    #0E0D0B;   /* ウォームブラック */
  --ink-2:  #16140F;
  --bone:   #EFEAE0;   /* クリーム */
  --bone-2: #C7C1B4;
  --muted:  #8A8478;
  --accent: #FF4D17;   /* ビビッドオレンジ */
  --accent-2:#FF7A4D;
  --line:   rgba(239,234,224,.14);
  --line-strong: rgba(239,234,224,.3);

  --maxw: 1320px;
  --gutter: clamp(20px, 4vw, 56px);
  --ease: cubic-bezier(.22,1,.36,1);
  --ease-io: cubic-bezier(.65,.05,.36,1);

  --display: "Instrument Serif", "Noto Serif JP", serif;
  --grotesk: "Space Grotesk", "Noto Sans JP", sans-serif;
  --jp:   "Noto Sans JP", sans-serif;
  --mono: "JetBrains Mono", monospace;
}

* , *::before, *::after { box-sizing: border-box; }
figure, figcaption, blockquote, dl, dt, dd, fieldset, legend, menu { margin: 0; }
fieldset { padding: 0; border: 0; min-inline-size: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--ink); color: var(--bone);
  font-family: var(--jp); font-weight: 400; line-height: 1.8; letter-spacing: .01em;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
body.is-locked { overflow: hidden; height: 100vh; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
p { margin: 0; }
h1,h2,h3,h4 { margin: 0; font-weight: 400; line-height: 1.05; }
button { font-family: inherit; cursor: pointer; }
::selection { background: var(--accent); color: var(--ink); }

.skip-link { position: absolute; left: 8px; top: -48px; background: var(--accent); color: var(--ink); padding: 10px 16px; z-index: 2000; transition: top .2s; }
.skip-link:focus { top: 8px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(64px, 9vh, 124px); position: relative; }

/* タイポのキット */
.eyebrow { font-family: var(--mono); font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; color: var(--accent); }
.h-display { font-family: var(--display); font-weight: 400; line-height: .94; letter-spacing: -.01em; }
.h-display em { font-style: italic; }
.grad-line { display: inline-block; overflow: hidden; }
.grad-line > span { display: inline-block; }

/* ====================================================
   プリローダー
   ==================================================== */
.preloader { position: fixed; inset: 0; z-index: 1500; background: var(--ink); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 28px; }
.preloader.is-done { transform: translateY(-100%); transition: transform 1s var(--ease-io); }
.preloader__inner { display: flex; align-items: baseline; gap: 18px; }
.preloader__name { font-family: var(--display); font-size: clamp(2.4rem, 8vw, 5rem); letter-spacing: .02em; }
.preloader__count { font-family: var(--mono); font-size: 1rem; color: var(--accent); }
.preloader__bar { width: min(260px, 60vw); height: 2px; background: var(--line); overflow: hidden; }
.preloader__bar span { display: block; height: 100%; width: 0; background: var(--accent); }

/* ====================================================
   カスタムカーソル
   ==================================================== */
.cursor { position: fixed; top: 0; left: 0; z-index: 1400; pointer-events: none; width: 12px; height: 12px; border-radius: 50%; background: var(--accent); transform: translate(-50%, -50%); transition: width .35s var(--ease), height .35s var(--ease), background .35s; mix-blend-mode: difference; will-change: transform; display: flex; align-items: center; justify-content: center; text-align: center; }
.cursor.is-hover { width: 76px; height: 76px; background: var(--bone); }
.cursor.is-hidden { opacity: 0; }
.cursor__label { font-family: var(--mono); font-size: .6rem; line-height: 1; letter-spacing: .08em; text-indent: .08em; color: var(--ink); text-transform: uppercase; opacity: 0; transition: opacity .25s; white-space: nowrap; }
.cursor.is-hover .cursor__label { opacity: 1; }
@media (hover: none) { .cursor { display: none; } }

/* ====================================================
   ヘッダー
   ==================================================== */
.site-header { position: fixed; inset: 0 0 auto 0; z-index: 200; mix-blend-mode: difference; }
.header-inner { max-width: var(--maxw); margin-inline: auto; padding: 26px var(--gutter); display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 7px; }
.brand-name { font-family: var(--display); font-size: 1.7rem; letter-spacing: .03em; color: var(--bone); }
.brand-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); animation: pulse 2.4s var(--ease) infinite; }
@keyframes pulse { 0%,100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.5); opacity: .5; } }

.header-clock { display: flex; flex-direction: column; align-items: center; line-height: 1.3; color: var(--bone); }
.header-loc { font-family: var(--mono); font-size: .62rem; letter-spacing: .14em; text-transform: uppercase; opacity: .7; }
.header-time { font-family: var(--mono); font-size: .78rem; letter-spacing: .08em; }

.nav-list { display: flex; align-items: center; gap: 30px; }
.nav-link { display: inline-flex; align-items: baseline; gap: 8px; color: var(--bone); }
.nav-en { font-family: var(--grotesk); font-weight: 500; font-size: .96rem; position: relative; overflow: hidden; }
.nav-en::after { content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform .4s var(--ease); }
.nav-link:hover .nav-en::after, .nav-link.is-active .nav-en::after { transform: scaleX(1); transform-origin: left; }
.nav-jp { font-size: .62rem; color: var(--bone-2); }

.nav-toggle { display: none; flex-direction: column; gap: 6px; width: 44px; height: 44px; align-items: center; justify-content: center; background: none; border: 0; }
.nav-toggle span { width: 26px; height: 2px; background: var(--bone); transition: transform .4s var(--ease), opacity .3s; }

/* ====================================================
   ヒーロー（キネティックタイポ）
   ==================================================== */
.hero { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; padding-top: 120px; padding-bottom: 60px; position: relative; }
/* ヒーロー背景動画（フルブリード・コンテナを突き抜けて表示） */
.hero__bg { position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 100vw; height: 100%; z-index: -1; overflow: hidden; }
.hero__bg .hero__video { width: 100%; height: 100%; object-fit: cover; opacity: .5; filter: grayscale(.2) contrast(1.04); }
.hero__bg::after { content: ""; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: linear-gradient(180deg, rgba(14,13,11,.78) 0%, rgba(14,13,11,.62) 45%, rgba(14,13,11,.86) 100%); }
@media (prefers-reduced-motion: reduce) { .hero__bg .hero__video { display: none; } }
.hero__top { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; margin-bottom: clamp(28px, 5vh, 60px); }
.hero__intro { max-width: 360px; color: var(--bone-2); font-size: .96rem; }
.hero__meta { font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; color: var(--muted); text-transform: uppercase; text-align: right; }

.hero__title { font-family: var(--display); font-size: clamp(3.4rem, 17vw, 16rem); line-height: .82; letter-spacing: -.02em; }
.hero__title .row { display: block; overflow: hidden; }
.hero__title .row > span { display: block; will-change: transform; }
.hero__title em { font-style: italic; color: var(--accent); }
.hero__title .accent-dot { color: var(--accent); }

.char { display: inline-block; will-change: transform; }
/* 分割した文字の塊（単語・文節単位）。塊の途中では折り返さない */
.char-word { display: inline-block; white-space: nowrap; }

.hero__bottom { display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 20px; margin-top: clamp(28px, 5vh, 56px); }
.hero__scroll { display: inline-flex; align-items: center; gap: 10px; font-family: var(--mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.hero__scroll .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); animation: bob 1.6s var(--ease) infinite; }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(6px); } }
.hero__cta { display: inline-flex; }

/* ====================================================
   マーキー
   ==================================================== */
.marquee { border-block: 1px solid var(--line); padding-block: 22px; overflow: hidden; white-space: nowrap; display: flex; gap: 0; }
.marquee--accent { background: var(--accent); color: var(--ink); border-color: var(--accent); }
.marquee__track { display: inline-flex; gap: 48px; padding-right: 48px; animation: marquee 26s linear infinite; will-change: transform; }
.marquee--rev .marquee__track { animation-direction: reverse; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__item { font-family: var(--display); font-size: clamp(1.6rem, 4vw, 3rem); letter-spacing: .01em; display: inline-flex; align-items: center; gap: 48px; }
.marquee__item::after { content: "✦"; font-size: .5em; color: var(--accent); }
.marquee--accent .marquee__item::after { color: var(--ink); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ====================================================
   セクション見出し
   ==================================================== */
.sec-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; flex-wrap: wrap; margin-bottom: clamp(36px, 4.5vh, 60px); }
.sec-head__title { font-family: var(--display); font-size: clamp(2.4rem, 6vw, 5rem); line-height: .95; }
.sec-head__title em { font-style: italic; color: var(--accent); }
.sec-num { font-family: var(--mono); font-size: .72rem; letter-spacing: .14em; color: var(--muted); }

/* イントロ（about） */
.intro-statement { font-family: var(--display); font-size: clamp(1.8rem, 4.4vw, 3.6rem); line-height: 1.18; letter-spacing: -.01em; max-width: 18ch; }
.intro-statement .word { display: inline-block; overflow: hidden; }
.intro-statement .word > span { display: inline-block; will-change: transform; }
.intro-statement em { font-style: italic; color: var(--accent); }
.intro-grid { display: grid; grid-template-columns: 1.4fr .6fr; gap: clamp(32px, 5vw, 80px); align-items: end; }
.intro-side p { color: var(--bone-2); font-size: .98rem; margin-bottom: 22px; }

/* ====================================================
   Works（インデックスのリスト：画像トレイル）
   ==================================================== */
.work-list { border-top: 1px solid var(--line); }
.work-row { position: relative; display: grid; grid-template-columns: 60px 1fr auto auto; gap: 24px; align-items: center; padding: clamp(20px, 3vw, 34px) 4px; border-bottom: 1px solid var(--line); transition: color .5s; }
.work-row::before { content: ""; position: absolute; inset: 0; background: var(--bone); transform: scaleY(0); transform-origin: bottom; transition: transform .5s var(--ease); z-index: 0; }
.work-row:hover::before { transform: scaleY(1); transform-origin: top; }
.work-row > * { position: relative; z-index: 1; transition: color .5s, transform .5s var(--ease); }
.work-row:hover .work-row__no, .work-row:hover .work-row__title { transform: translateX(20px); }
.work-row:hover > *, .work-row:hover .work-row__title { color: var(--ink); }
.work-row__no { font-family: var(--mono); font-size: .76rem; color: var(--muted); }
.work-row__title { font-family: var(--display); font-size: clamp(1.8rem, 5vw, 3.6rem); line-height: 1; }
.work-row__cat { font-family: var(--mono); font-size: .74rem; letter-spacing: .06em; color: var(--bone-2); }
.work-row__year { font-family: var(--mono); font-size: .74rem; color: var(--muted); }
.work-row:hover .work-row__cat, .work-row:hover .work-row__year { color: var(--ink); }

/* カーソル追従プレビュー */
.work-preview { position: fixed; top: 0; left: 0; width: 280px; height: 360px; pointer-events: none; z-index: 150; opacity: 0; transform: translate(-50%, -50%) scale(.8); transition: opacity .4s var(--ease), transform .4s var(--ease); overflow: hidden; border-radius: 4px; will-change: transform; }
.work-preview.is-visible { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.work-preview img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity .3s; }
.work-preview img.is-active { opacity: 1; }
@media (hover: none) { .work-preview { display: none; } }

/* ====================================================
   横スクロール・ピン留めギャラリー
   ==================================================== */
.hscroll { position: relative; height: 300vh; }
.hscroll__pin { position: sticky; top: 0; height: 100vh; display: flex; align-items: center; overflow: hidden; }
.hscroll__track { display: flex; gap: clamp(16px, 2vw, 32px); padding-inline: var(--gutter); will-change: transform; }
.hscroll__head { flex: 0 0 auto; width: min(40vw, 440px); display: flex; flex-direction: column; justify-content: center; padding-right: 40px; }
.hscroll__head .eyebrow { margin-bottom: 18px; }
.hscroll__head h2 { font-family: var(--display); font-size: clamp(2.4rem, 5vw, 4.4rem); line-height: .96; }
.hscroll__head em { font-style: italic; color: var(--accent); }
.hcard { flex: 0 0 auto; width: min(64vw, 560px); aspect-ratio: 4/3; overflow: hidden; border-radius: 4px; position: relative; }
.hcard img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.hcard:hover img { transform: scale(1.04); }
.hcard__cap { position: absolute; left: 18px; bottom: 16px; font-family: var(--mono); font-size: .72rem; letter-spacing: .08em; color: var(--bone); mix-blend-mode: difference; }
@media (hover: none), (max-width: 700px) { .hscroll { height: auto; } .hscroll__pin { position: static; height: auto; } .hscroll__track { flex-wrap: nowrap; overflow-x: auto; scroll-snap-type: x mandatory; padding-block: 40px; -webkit-overflow-scrolling: touch; } .hcard { scroll-snap-align: center; } }

/* ====================================================
   サービス：スタッキングカード
   ==================================================== */
.stack { display: flex; flex-direction: column; gap: 20px; }
.stack-card { position: sticky; top: 120px; background: var(--ink-2); border: 1px solid var(--line); border-radius: 8px; padding: clamp(32px, 4vw, 56px); display: grid; grid-template-columns: auto 1fr auto; gap: clamp(24px, 4vw, 64px); align-items: start; }
.stack-card__no { font-family: var(--mono); font-size: .82rem; color: var(--accent); }
.stack-card__title { font-family: var(--display); font-size: clamp(2rem, 5vw, 3.6rem); line-height: 1; }
.stack-card__jp { font-size: .9rem; color: var(--bone-2); margin-top: 10px; }
.stack-card__desc { color: var(--bone-2); font-size: 1rem; max-width: 44ch; }
.stack-card__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.stack-card__tags span { font-family: var(--mono); font-size: .68rem; letter-spacing: .04em; padding: 5px 12px; border: 1px solid var(--line-strong); border-radius: 999px; color: var(--bone-2); }
.stack-card__index { font-family: var(--display); font-size: clamp(3rem, 8vw, 7rem); line-height: .8; color: var(--line); }

/* ====================================================
   アプローチ
   ==================================================== */
.approach-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); }
.approach-item { padding: 36px 24px 36px 0; border-bottom: 1px solid var(--line); }
.approach-item__no { font-family: var(--mono); font-size: .74rem; color: var(--accent); }
.approach-item__title { font-family: var(--display); font-size: clamp(1.6rem, 3vw, 2.4rem); margin: 16px 0 6px; }
.approach-item__jp { font-size: .82rem; color: var(--muted); margin-bottom: 14px; }
.approach-item__desc { color: var(--bone-2); font-size: .92rem; }

/* ====================================================
   数字
   ==================================================== */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat__value { font-family: var(--display); font-size: clamp(3rem, 9vw, 7rem); line-height: .9; }
.stat__value .suffix { color: var(--accent); }
.stat__label { font-family: var(--mono); font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-top: 10px; }

/* awards / marquee chips */
.awards { display: flex; flex-wrap: wrap; gap: 14px; }
.award { display: inline-flex; align-items: baseline; gap: 12px; border: 1px solid var(--line); border-radius: 999px; padding: 12px 22px; }
.award__name { font-family: var(--grotesk); font-weight: 600; }
.award__detail { font-family: var(--mono); font-size: .72rem; color: var(--muted); }

/* ====================================================
   ボタン
   ==================================================== */
.btn { display: inline-flex; align-items: center; gap: .7em; font-family: var(--grotesk); font-weight: 500; font-size: .96rem; padding: 16px 32px; border-radius: 999px; border: 1px solid var(--line-strong); color: var(--bone); background: transparent; transition: background .4s var(--ease), color .4s var(--ease), border-color .4s; position: relative; overflow: hidden; }
.btn span.t { position: relative; z-index: 1; }
.btn .arrow { position: relative; z-index: 1; transition: transform .4s var(--ease); }
.btn::before { content: ""; position: absolute; inset: 0; background: var(--accent); transform: translateY(101%); transition: transform .5s var(--ease); }
.btn:hover { border-color: var(--accent); color: var(--ink); }
.btn:hover::before { transform: translateY(0); }
.btn:hover .arrow { transform: translateX(5px); }
.btn-fill { background: var(--accent); border-color: var(--accent); color: var(--ink); }
.btn-fill::before { background: var(--bone); }
.btn-fill:hover { color: var(--ink); border-color: var(--bone); }
.btn-lg { padding: 20px 40px; font-size: 1.05rem; }

/* マグネティック対応 */
[data-magnetic] { will-change: transform; }

/* ====================================================
   ページヘッダー（下層）
   ==================================================== */
.page-hero { padding-top: 180px; padding-bottom: clamp(40px, 6vh, 80px); }
.page-hero h1 { font-family: var(--display); font-size: clamp(3rem, 12vw, 9rem); line-height: .9; }
.page-hero h1 em { font-style: italic; color: var(--accent); }
.page-hero .lead { margin-top: 24px; max-width: 52ch; color: var(--bone-2); }
.breadcrumb { font-family: var(--mono); font-size: .72rem; letter-spacing: .08em; color: var(--muted); margin-bottom: 28px; }
.breadcrumb a { transition: color .3s; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { margin-inline: 8px; }

/* work.php グリッド */
.work-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(24px, 4vw, 64px); }
.work-card { display: block; }
.work-card__media { aspect-ratio: 4/5; overflow: hidden; border-radius: 4px; position: relative; }
.work-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease), filter .6s; filter: saturate(.94); }
.work-card:hover .work-card__media img { transform: scale(1.05); filter: saturate(1.05); }
.work-card__media::after { content: "View"; position: absolute; inset: 0; display: grid; place-items: center; font-family: var(--mono); font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink); background: rgba(255,77,23,0); opacity: 0; transition: background .5s var(--ease), opacity .5s; }
.work-card:hover .work-card__media::after { background: rgba(255,77,23,.86); opacity: 1; }
.work-card__meta { display: flex; justify-content: space-between; align-items: baseline; margin-top: 18px; gap: 16px; }
.work-card__title { font-family: var(--display); font-size: clamp(1.6rem, 3vw, 2.6rem); line-height: 1; }
.work-card__cat { font-family: var(--mono); font-size: .72rem; color: var(--muted); }
.work-card:nth-child(even) { margin-top: clamp(0px, 8vw, 100px); }

/* studio team */
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.team-card { border-top: 1px solid var(--line); padding-top: 22px; }
.team-card__role { font-family: var(--mono); font-size: .7rem; letter-spacing: .06em; color: var(--accent); text-transform: uppercase; }
.team-card__name { font-family: var(--display); font-size: clamp(1.5rem, 2.4vw, 2rem); margin: 14px 0 4px; }
.team-card__en { font-family: var(--mono); font-size: .76rem; color: var(--muted); }

/* ====================================================
   contact / form
   ==================================================== */
.form-wrap { display: grid; grid-template-columns: 1.2fr .8fr; gap: clamp(36px, 5vw, 80px); align-items: start; }
.form-field { margin-bottom: 30px; position: relative; }
.form-field label { display: block; font-family: var(--mono); font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
.form-field .req { color: var(--accent); margin-left: 6px; }
.form-field input, .form-field textarea, .form-field select {
  width: 100%; padding: 14px 2px; font: inherit; font-size: 1.05rem; color: var(--bone);
  background: transparent; border: 0; border-bottom: 1px solid var(--line-strong); border-radius: 0;
  transition: border-color .4s var(--ease);
}
.form-field input::placeholder, .form-field textarea::placeholder { color: var(--muted); }
.form-field input:focus, .form-field textarea:focus, .form-field select:focus { outline: none; border-color: var(--accent); }
.form-field select { appearance: none; cursor: pointer; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23FF4D17' stroke-width='1.5' fill='none'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 2px center; }
.form-field select option { background: var(--ink); }
.form-field textarea { resize: vertical; min-height: 120px; }
.form-field.has-error input, .form-field.has-error textarea, .form-field.has-error select { border-color: var(--accent); }
.field-error { color: var(--accent-2); font-size: .82rem; margin-top: 8px; font-family: var(--mono); }
.honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-note { font-size: .8rem; color: var(--muted); margin-top: 6px; line-height: 1.8; }
.form-aside__big { font-family: var(--display); font-size: clamp(1.6rem, 3vw, 2.4rem); line-height: 1.12; }
.form-aside dl { margin-top: 36px; }
.form-aside dt { font-family: var(--mono); font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-top: 22px; }
.form-aside dd { margin: 6px 0 0; font-size: 1rem; }

.alert { border: 1px solid var(--accent); border-radius: 6px; padding: 16px 20px; margin-bottom: 30px; font-size: .94rem; color: var(--accent-2); }

.thanks { text-align: center; max-width: 700px; margin-inline: auto; padding-top: 40px; }
.thanks h1 { font-family: var(--display); font-size: clamp(3rem, 12vw, 9rem); line-height: .9; }
.thanks h1 em { font-style: italic; color: var(--accent); }
.thanks p { color: var(--bone-2); margin: 20px auto 0; max-width: 48ch; }

/* ====================================================
   フッター
   ==================================================== */
.site-footer { border-top: 1px solid var(--line); padding-top: clamp(60px, 10vh, 140px); margin-top: 40px; }
.footer-cta { margin-bottom: clamp(60px, 10vh, 130px); }
.footer-eyebrow { font-family: var(--mono); font-size: .76rem; letter-spacing: .1em; color: var(--muted); margin-bottom: 20px; }
.footer-bigcta { display: inline-block; font-family: var(--display); font-size: clamp(3rem, 15vw, 13rem); line-height: .88; }
.footer-bigcta__line { display: block; overflow: hidden; }
.footer-bigcta__line > span { display: block; transition: transform .6s var(--ease); }
.footer-bigcta em { font-style: italic; color: var(--accent); }
.footer-bigcta:hover .footer-bigcta__line > span { transform: translateX(3%); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 32px; padding-bottom: 56px; border-bottom: 1px solid var(--line); }
.footer-logo { font-family: var(--display); font-size: 2rem; }
.footer-tag { color: var(--bone-2); margin-top: 8px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-h { font-family: var(--mono); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.footer-col a { color: var(--bone-2); width: fit-content; transition: color .3s; }
.footer-col a:hover { color: var(--accent); }
.footer-muted { color: var(--muted); font-size: .86rem; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; padding-block: 26px; }
.sample-note { font-size: .78rem; color: var(--accent); }
.copyright { font-family: var(--mono); font-size: .74rem; color: var(--muted); }

.to-top { position: fixed; right: 22px; bottom: 22px; z-index: 120; width: 50px; height: 50px; border-radius: 50%; border: 1px solid var(--line-strong); background: var(--ink); color: var(--accent); font-size: 1.1rem; opacity: 0; visibility: hidden; transform: translateY(10px); transition: opacity .4s, visibility .4s, transform .4s, border-color .3s; }
.to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { border-color: var(--accent); }

/* ====================================================
   reveal アニメーション
   ==================================================== */
/* 初期非表示は JS が有効なときだけ（.js）。JS無効でも必ず見えるようにする */
.js .reveal { opacity: 0; transform: translateY(40px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"]{ transition-delay:.1s; } .reveal[data-delay="2"]{ transition-delay:.2s; } .reveal[data-delay="3"]{ transition-delay:.3s; }
/* マスク行（テキスト/画像） */
.line-mask { overflow: hidden; }
.js .line-mask > * { display: block; transform: translateY(110%); transition: transform 1s var(--ease); }
.line-mask.is-in > * { transform: none; }
/* clip-reveal は clip-path で隠れており IntersectionObserver の ratio が 0 になるため、
   自身ではなく親 .reveal の is-in でも開くようにする（main.js が伝播） */
.js .clip-reveal { clip-path: inset(0 0 100% 0); transition: clip-path 1.2s var(--ease-io); }
.clip-reveal.is-in,
.reveal.is-in .clip-reveal { clip-path: inset(0 0 0 0); }

/* キネティック初期状態（JSが分割時に付与） */
.js .split .char { transform: translateY(110%); }
.split.is-in .char { transform: translateY(0); transition: transform .9s var(--ease); }

/* フェイルセーフ：main.js が動かない場合は全要素を強制表示し、プリローダーも消す */
.reveal-all .reveal { opacity: 1 !important; transform: none !important; }
.reveal-all .line-mask > *, .reveal-all .split .char, .reveal-all .hero__title .row > span { transform: none !important; }
.reveal-all .clip-reveal { clip-path: inset(0 0 0 0) !important; }
.reveal-all .preloader { display: none !important; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal, .line-mask > *, .clip-reveal, .split .char, .hero__title .row > span { opacity: 1 !important; transform: none !important; clip-path: none !important; }
  .preloader { display: none !important; }
  .cursor { display: none !important; }
  .hscroll { height: auto; } .hscroll__pin { position: static; height: auto; } .hscroll__track { flex-wrap: wrap; }
  html { scroll-behavior: auto; }
}

/* ====================================================
   レスポンシブ
   ==================================================== */
@media (max-width: 980px) {
  .intro-grid { grid-template-columns: 1fr; gap: 36px; }
  .stack-card { grid-template-columns: 1fr; gap: 18px; }
  .stack-card__index { display: none; }
  .approach-grid, .stats-row, .team-grid { grid-template-columns: repeat(2, 1fr); }
  .form-wrap { grid-template-columns: 1fr; gap: 40px; }
  .work-grid { grid-template-columns: 1fr; gap: 36px; }
  .work-card:nth-child(even) { margin-top: 0; }
  .header-clock { display: none; }
}

@media (max-width: 680px) {
  .nav-toggle { display: flex; }
  .global-nav { position: fixed; inset: 0; background: var(--ink); display: flex; align-items: center; justify-content: center; transform: translateY(-100%); transition: transform .6s var(--ease-io); mix-blend-mode: normal; z-index: 190; }
  .global-nav.is-open { transform: translateY(0); }
  /* メニューを開いている間はヘッダーの反転合成（difference）を止め、背景で本文を隠す。ロゴと×ボタンはメニューより前に出す */
  .site-header:has(.global-nav.is-open) { mix-blend-mode: normal; }
  .brand, .nav-toggle { position: relative; z-index: 195; }
  .nav-list { flex-direction: column; align-items: center; gap: 8px; }
  .nav-link { flex-direction: column; align-items: center; gap: 4px; }
  .nav-en { font-family: var(--display); font-size: 3rem; }
  .nav-toggle.is-open span:nth-child(1) { transform: translateY(4px) rotate(45deg); }
  .nav-toggle.is-open span:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }
  .work-row { grid-template-columns: auto 1fr auto; }
  .work-row__cat { display: none; }
  .approach-grid, .stats-row, .team-grid { grid-template-columns: 1fr; }
  .sec-head { align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero__title { font-size: clamp(3rem, 19vw, 8rem); }
}