/* ======================================================
   01 基本設定：色・フォント・全体の余白はここで変更
   Google Fontsに接続できない場合も標準フォントで表示
   ====================================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Noto+Sans+JP:wght@400;500;600&family=Noto+Serif+JP:wght@500;600&family=Source+Serif+4:opsz,wght@8..60,400;8..60,500;8..60,600&display=swap');

:root {
  --mist: #d9ebe7;
  --paper: #f8f4ec;
  --ink: #302923;
  --muted: #746d65;
  --accent: #0d564d;
  --line: rgba(48, 41, 35, 0.17);
  --tab-height: 4.75rem;
  --page-gutter: clamp(1.5rem, 5vw, 5rem);
  --section-space: clamp(2.25rem, 3.5vw, 3.5rem);
  --content-gap: clamp(1.25rem, 2.5vw, 2.5rem);
  --font-sans: 'Inter', 'Noto Sans JP', 'Helvetica Neue', Arial, sans-serif;
  --font-serif: 'Source Serif 4', 'Noto Serif JP', Georgia, serif;
  --font-display: var(--font-serif);
  color: var(--ink);
  font-family: var(--font-sans);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html {
  min-width: 320px;
  scroll-behavior: smooth;
  scroll-padding-top: var(--tab-height);
}
body {
  min-width: 320px;
  min-height: 100dvh;
  margin: 0;
  background: var(--mist);
}
body::before {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  content: '';
  opacity: 0.026;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E");
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { color: inherit; font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
::selection { color: var(--paper); background: var(--accent); }
.portfolio, .journey-page { width: 100%; overflow-x: clip; }
.skip-link {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 210;
  padding: 0.75rem 1rem;
  color: var(--paper);
  background: var(--accent);
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }

/* HomeとMOTPRIだけをSansへ。Journey詳細は既存のSerifを継承します。 */
.portfolio, .motpri-page {
  --font-display: var(--font-sans);
  --heading-weight: 600;
  --heading-tracking: -0.035em;
  --micro-tracking: 0.1em;
}
:is(.portfolio, .motpri-page) :is(.eyebrow, .work-meta span, .project-credits dt) {
  font-weight: 500;
  letter-spacing: var(--micro-tracking);
  font-variant-numeric: tabular-nums;
}
.portfolio .hero__name h1 { font-weight: var(--heading-weight); line-height: 1.02; letter-spacing: var(--heading-tracking); }
.portfolio .hero__name .hero__name-jp { font-weight: 500; letter-spacing: 0.06em; }
.portfolio :is(.sheet-heading h2, .about-profile-card h3, .contact-layout h2) {
  font-weight: var(--heading-weight);
  line-height: 1.08;
  letter-spacing: var(--heading-tracking);
}
.portfolio .about-accordion__item button strong { font-weight: 500; line-height: 1.5; letter-spacing: 0; }
.portfolio .about-accordion__item button > span { font-size: 0.8rem; font-weight: 500; }

/* 02 メニュー：中央のブラウザタブ、スマホのメニュー */
.tabbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  height: var(--tab-height);
  padding: 0.7rem 1.1rem 0;
  background: rgba(217, 235, 231, 0.96);
  border-bottom: 1px solid rgba(13, 86, 77, 0.2);
  box-shadow: 0 0.35rem 1.6rem rgba(13, 86, 77, 0.055);
  backdrop-filter: blur(18px) saturate(115%);
}
.tabbar__brand {
  display: flex;
  gap: 0.65rem;
  align-items: center;
  align-self: start;
  height: 3.25rem;
  font-size: 0.83rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.tabbar__mark { width: 2rem; height: 2rem; }
.tabbar__toggle { display: none; }
.tabs { display: flex; align-self: end; align-items: end; }
.tab {
  display: flex;
  height: 3.2rem;
  padding: 0 1.25rem;
  gap: 2rem;
  align-items: center;
  justify-content: space-between;
  color: #55645e;
  background: rgba(199, 220, 213, 0.4);
  border: 1px solid rgba(13, 86, 77, 0.16);
  border-bottom: 0;
  border-radius: 0.85rem 0.85rem 0 0;
  font-size: 0.8rem;
  transition: background 220ms, color 220ms;
}
.tab + .tab { margin-left: -1px; }
.tab span { color: var(--accent); font-size: 0.62rem; font-variant-numeric: tabular-nums; }
.tab:hover { color: var(--accent); background: #e5efeb; }
.tab.is-active { color: var(--ink); background: var(--paper); }

/* 03 共通セクション・見出し・リンク・フッター */
.portfolio > main { isolation: isolate; }
.sheet { position: relative; margin: 0; }
.sheet__surface {
  position: relative;
  padding: var(--section-space) var(--page-gutter);
  background: var(--paper);
  border-top: 1px solid rgba(48, 41, 35, 0.12);
}
/* 全体が画面内に収まるセクションだけを固定。長い内容は通常スクロール。 */
.sheet.is-stackable { position: sticky; top: var(--tab-height); }
.sheet--home { z-index: 1; }
.sheet--works { z-index: 2; }
.sheet--about { z-index: 3; }
.sheet--contact { z-index: 4; }
.is-stackable:not(.sheet--home) > .sheet__surface {
  border-radius: 1rem 1rem 0 0;
  box-shadow: 0 -0.8rem 2.2rem rgba(13, 86, 77, 0.07);
}
.sheet-heading { padding-bottom: clamp(1rem, 1.8vw, 1.6rem); border-bottom: 1px solid var(--line); }
.sheet-heading > div { display: flex; align-items: start; gap: 1rem; }
.sheet-heading h2 {
  margin: 0;
  font-size: clamp(3rem, 5.2vw, 5.4rem);
  font-weight: 500;
  line-height: 0.9;
  letter-spacing: -0.065em;
}
.sheet-heading__count { color: var(--accent); font-size: 0.74rem; font-weight: 600; }
.eyebrow { margin: 0; color: var(--accent); font-size: 0.68rem; font-weight: 600; letter-spacing: 0.11em; text-transform: uppercase; }
.arrow-link {
  display: inline-flex;
  min-height: 3.1rem;
  padding: 0 0.95rem;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border-bottom: 1px solid currentColor;
  font-size: 0.84rem;
  font-weight: 600;
  transition: gap 240ms, opacity 240ms;
}
.arrow-link:hover { gap: 2.6rem; opacity: 0.66; }
.footer {
  display: flex;
  margin-top: clamp(2.5rem, 4vw, 4rem);
  padding-top: 1.2rem;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
}

/* 04 Home：写真、名前、下の流れる文字 */
.hero {
  min-height: calc(100dvh - var(--tab-height));
  padding: clamp(1.8rem, 3.2vw, 3.5rem);
  overflow: hidden;
  color: #29302e;
  background: #c6d8df;
  border-top: 0;
}
.hero__intro {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid rgba(41, 48, 46, 0.25);
  font-size: 0.67rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.hero__intro p, .hero__name p { margin: 0; }
.hero__name { position: relative; z-index: 2; padding-top: clamp(2.2rem, 5.5vh, 5rem); padding-bottom: 10rem; }
.hero__name h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(4.5rem, 8.2vw, 8rem);
  font-weight: 400;
  line-height: 0.78;
  letter-spacing: -0.055em;
}
.hero__name .hero__name-jp { margin-top: clamp(1rem, 2vh, 1.6rem); font-family: var(--font-display); font-size: clamp(1rem, 1.6vw, 1.45rem); letter-spacing: 0.12em; }
.hero__name .hero__role { margin-top: clamp(1.1rem, 2vh, 1.7rem); font-size: clamp(0.72rem, 1vw, 0.86rem); font-weight: 600; letter-spacing: 0.015em; }
.hero__name .hero__discipline { width: fit-content; margin-top: clamp(1.2rem, 2.4vh, 2rem); padding-top: 0.9rem; border-top: 1px solid rgba(41, 48, 46, 0.27); font-size: 0.64rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }
.hero__media { position: absolute; z-index: 1; inset: 0; overflow: hidden; }
.hero__media::after {
  position: absolute;
  inset: 0;
  content: '';
  background: linear-gradient(90deg, rgba(225, 235, 234, 0.5), transparent 48%), linear-gradient(180deg, rgba(225, 235, 234, 0.22), transparent 32%, rgba(16, 32, 30, 0.16));
}
.hero__media img { width: 100%; height: 100%; object-fit: cover; transform: scale(var(--hero-scale, 1)); }
.hero__scroll {
  position: absolute;
  z-index: 2;
  right: clamp(1.8rem, 3.2vw, 3.5rem);
  bottom: calc(3.2rem + clamp(1.4rem, 2.4vw, 2.5rem));
  left: clamp(1.8rem, 3.2vw, 3.5rem);
  display: flex;
  justify-content: space-between;
  padding-top: 1.25rem;
  color: white;
  border-top: 1px solid rgba(255, 255, 255, 0.5);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.marquee { position: absolute; z-index: 3; right: 0; bottom: 0; left: 0; height: 3.2rem; overflow: hidden; color: var(--paper); background: var(--accent); }
.marquee__track { display: flex; width: max-content; height: 100%; align-items: center; font-size: 0.68rem; font-weight: 500; letter-spacing: 0.09em; text-transform: uppercase; animation: marquee 24s linear infinite; }
.marquee__track > div { padding-right: 2rem; white-space: nowrap; }
.marquee__track i { padding: 0 1.2rem; opacity: 0.4; font-style: normal; }
@keyframes marquee { to { transform: translateX(-50%); } }
.marquee:hover .marquee__track { animation-play-state: paused; }

/* 05 Works：1作品は大きく、2作品以上はプレビュー＋一覧 */
.work-archive { display: grid; margin-top: var(--content-gap); align-items: start; }
.work-archive.is-multiple { grid-template-columns: minmax(0, 7fr) minmax(18rem, 5fr); gap: clamp(2rem, 4vw, 4.5rem); }
.work-previews, .work-feature { min-width: 0; }
.work-feature + .work-feature { margin-top: 2rem; }
.js .work-feature + .work-feature { margin-top: 0; }
.work-panel { position: relative; min-height: 18rem; height: clamp(20rem, 48vh, 31rem); overflow: hidden; color: white; background: var(--accent); border-radius: 0.55rem; }
.work-panel > img { width: 100%; height: 100%; object-fit: cover; transition: transform 700ms cubic-bezier(0.2, 0.75, 0.2, 1); }
.work-panel:hover > img { transform: scale(1.045); }
/* 同じGridセルに重ね、非表示作品も高さの計算に参加させます。
   切替時の再計測や、sectionの高さ変更は不要です。 */
.work-archive.is-multiple .work-previews { display: grid; }
.work-archive.is-multiple .work-feature {
  grid-area: 1 / 1;
  display: grid;
  grid-template-rows: auto 1fr;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 380ms ease, visibility 0s 380ms;
}
.work-archive.is-multiple .work-feature.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition-delay: 0s;
}
.work-panel__wash { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11, 39, 34, 0.05), rgba(11, 39, 34, 0.75)); }
.work-panel__index, .work-panel__body { position: absolute; right: 1.5rem; left: 1.5rem; }
.work-panel__index { top: 1.5rem; font-size: 0.67rem; letter-spacing: 0.1em; }
.work-panel__body { bottom: 1.4rem; display: flex; gap: 1.5rem; align-items: end; justify-content: space-between; }
.work-panel__body h3 { margin: 0; font-family: var(--font-display); font-size: clamp(2.4rem, 3.8vw, 4rem); font-weight: var(--heading-weight); line-height: 1.08; letter-spacing: var(--heading-tracking); }
.work-panel__body p { margin: 0.8rem 0 0; font-size: 0.78rem; }
.work-panel__button { display: inline-flex; flex: 0 0 auto; min-height: 3.3rem; padding: 0 1.2rem; align-items: center; justify-content: center; color: var(--ink); background: var(--paper); border-radius: 0.85rem; font-size: 0.76rem; font-weight: 600; transition: transform 220ms, background 220ms; }
.work-panel__button:hover { background: white; transform: translateY(-3px); }
.work-meta { display: grid; align-content: start; grid-template-columns: 2fr 1fr 1.5fr; gap: 1.25rem; margin-top: 0.85rem; }
.work-meta > div { min-height: 3.5rem; padding-top: 0.65rem; border-top: 1px solid var(--line); }
.work-meta span { color: var(--accent); font-size: 0.62rem; letter-spacing: 0.08em; text-transform: uppercase; }
.work-meta p { margin: 0.35rem 0 0; font-size: 0.72rem; line-height: 1.7; }
.work-index { max-height: 32rem; margin: 0; padding: 0; overflow-y: auto; list-style: none; border-top: 1px solid var(--line); scrollbar-width: thin; }
.work-index li { display: grid; grid-template-columns: minmax(0, 1fr) 3.25rem; border-bottom: 1px solid var(--line); }
.work-index li { transition: background 220ms; }
.work-index li.is-active { background: rgba(199, 220, 213, 0.2); box-shadow: inset 2px 0 var(--accent); }
.work-index li.is-active strong { font-weight: 600; }
.work-index__select, .work-index__open { border: 0; color: inherit; background: transparent; cursor: pointer; }
.work-index__select { display: grid; min-height: clamp(5rem, 8vw, 7rem); padding: 1rem 0.75rem; grid-template-columns: 2rem minmax(0, 1fr) auto; gap: 0.75rem; align-items: center; text-align: left; }
.work-index__number, .work-index__year { color: var(--accent); font-size: 0.67rem; font-variant-numeric: tabular-nums; }
.work-index__title { display: grid; min-width: 0; gap: 0.35rem; }
.work-index__title strong { overflow: hidden; font-family: var(--font-display); font-size: clamp(1.2rem, 2vw, 1.9rem); font-weight: 500; text-overflow: ellipsis; white-space: nowrap; }
.work-index__title small { font-size: 0.65rem; line-height: 1.75; }
.work-index__open { display: grid; place-items: center; }
.work-index__open:hover { color: var(--paper); background: var(--accent); }

/* 06 About：プロフィール・年表・アコーディオン */
.about-directory { display: grid; grid-template-columns: minmax(18rem, 4.2fr) minmax(0, 7.8fr); gap: clamp(1.75rem, 3.5vw, 4rem); margin-top: var(--content-gap); align-items: start; }
.about-profile-card { min-width: 0; }
.about-profile-card__image { overflow: hidden; aspect-ratio: 3 / 2; border-radius: 0.55rem; }
.about-profile-card__image img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.about-profile-card h3 { margin: 1.25rem 0 0.25rem; font-family: var(--font-display); font-size: clamp(2rem, 3.1vw, 3.3rem); font-weight: 500; line-height: 0.96; letter-spacing: -0.045em; }
.career-timeline { margin: 1.1rem 0 0; padding: 0; list-style: none; }
.career-timeline li { position: relative; display: grid; grid-template-columns: 4.6rem minmax(0, 1fr); gap: 1.6rem; padding: 0.72rem 0; }
.career-timeline li::before { position: absolute; top: 1.1rem; left: 5.15rem; z-index: 1; width: 0.38rem; height: 0.38rem; content: ''; background: var(--accent); border-radius: 50%; transform: translateX(-50%); }
.career-timeline li:not(:last-child)::after { position: absolute; top: 1.35rem; bottom: -0.95rem; left: 5.15rem; width: 1px; content: ''; background: rgba(13, 86, 77, 0.3); }
.career-timeline time { color: var(--accent); font-size: 0.64rem; font-weight: 600; font-variant-numeric: tabular-nums; letter-spacing: 0.06em; white-space: nowrap; }
.career-timeline p { margin: 0; font-size: clamp(0.72rem, 0.82vw, 0.86rem); line-height: 1.65; }
.about-browser { display: flex; min-width: 0; flex-direction: column; }
.about-accordion { border-top: 1px solid var(--line); }
.about-accordion__item { border-bottom: 1px solid var(--line); }
.about-accordion__item h3 { margin: 0; }
.about-accordion__item button { display: grid; width: 100%; min-height: clamp(4.1rem, 6.3vw, 5.4rem); padding: 0.9rem 0; grid-template-columns: 3.2rem minmax(0, 1fr) auto; gap: 0.9rem; align-items: center; color: inherit; text-align: left; background: transparent; border: 0; cursor: pointer; transition: color 220ms; }
.about-accordion__item button:hover, .about-accordion__item.is-active button { color: var(--accent); }
.about-accordion__item button > span { font-family: var(--font-display); font-size: clamp(1rem, 1.6vw, 1.35rem); font-variant-numeric: tabular-nums; }
.about-accordion__item button strong { font-family: var(--font-display); font-size: clamp(1.15rem, 2vw, 1.75rem); font-weight: 500; line-height: 1.25; letter-spacing: -0.025em; }
.about-accordion__item button small { color: var(--muted); font-size: 0.58rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; }
/* JSがないときは全項目を表示。JSが動くと1項目ずつ開閉します。 */
.about-accordion__body { display: grid; grid-template-rows: 1fr; }
.js .about-accordion__body { grid-template-rows: 0fr; opacity: 0; transition: grid-template-rows 420ms cubic-bezier(0.22, 1, 0.36, 1), opacity 260ms; }
.js .is-active > .about-accordion__body { grid-template-rows: 1fr; opacity: 1; }
.about-accordion__inner { min-height: 0; padding: 0 0 1.5rem 4.1rem; overflow: hidden; }
.js .about-accordion__inner { padding-bottom: 0; transition: padding-bottom 420ms; }
.js .is-active .about-accordion__inner { padding-bottom: clamp(1.5rem, 3vw, 2.4rem); }
.about-list { margin: 0; padding: 0; list-style: none; }
.about-list li { position: relative; padding: 0.7rem 0 0.7rem 1.4rem; border-bottom: 1px solid var(--line); font-size: clamp(0.76rem, 0.98vw, 0.95rem); line-height: 1.85; }
.about-list li::before { position: absolute; left: 0; content: '–'; color: var(--accent); }
/* 「これから」は箇条書きではなく、3つの段落で読む。 */
.about-future-copy { max-width: 42rem; font-size: clamp(0.85rem, 0.98vw, 0.95rem); line-height: 1.85; }
.about-future-copy p { margin: 0 0 0.9em; }
.about-future-copy p:last-child { margin-bottom: 0; }
.about-accordion__inner .arrow-link { width: 100%; min-height: 2.5rem; margin-top: 0.85rem; padding: 0; font-size: 0.72rem; }
.about-browser__hint { display: flex; margin: auto 0 0; padding-top: 0.85rem; justify-content: space-between; color: var(--accent); font-size: 0.58rem; font-weight: 600; font-variant-numeric: tabular-nums; letter-spacing: 0.1em; text-transform: uppercase; }
/* 内容全体が収まるPCだけで有効にする、スクロールに連動した切り替え */
.sheet--about.is-scroll-about { min-height: calc(375dvh - var(--tab-height)); }
.is-scroll-about > .sheet__surface { position: sticky; top: var(--tab-height); min-height: calc(100dvh - var(--tab-height)); padding-top: clamp(1.5rem, 2.8vh, 2rem); padding-bottom: clamp(1.5rem, 2.8vh, 2rem); }
.is-scroll-about .sheet-heading { padding-bottom: 0.9rem; }
.is-scroll-about .sheet-heading h2 { font-size: clamp(3rem, 4.6vw, 4.6rem); }
.is-scroll-about .about-directory { margin-top: 1.15rem; }
.is-scroll-about .about-profile-card__image { aspect-ratio: 16 / 9; }
.is-scroll-about .about-browser { min-height: var(--about-browser-height, 31rem); }
.is-scroll-about .about-accordion__item button { min-height: clamp(3.35rem, 4.3vw, 4rem); }
/* 寸法測定中だけ開閉のアニメーションを停止。画面には中間状態を描画しません。 */
.is-measuring .about-accordion__body, .is-measuring .about-accordion__inner { transition: none; }

/* 07 Contact：空白で画面を引き延ばさない、自然な高さ */
.sheet--contact .sheet__surface { background: #dfeae5; }
.contact-layout { display: grid; grid-template-columns: 7fr 5fr; gap: 2rem; align-items: end; }
.contact-heading .eyebrow { margin-bottom: 1rem; }
.contact-layout h2 { margin: 0; font-family: var(--font-display); font-size: clamp(3.1rem, 7vw, 7rem); font-weight: 500; line-height: 1.06; letter-spacing: -0.055em; }
.contact-layout > div:last-child > p { max-width: 28rem; margin: 0 0 2.3rem; font-size: 0.9rem; line-height: 1.9; }
.contact-mail { display: flex; max-width: 34rem; padding: 1rem 0; align-items: end; justify-content: space-between; gap: 0.5rem; border-bottom: 1px solid var(--ink); font-size: clamp(1.25rem, 1.85vw, 1.8rem); font-weight: 500; line-height: 1.2; }
.contact-mail > span:first-child { overflow-wrap: anywhere; }
.contact-mail__break { display: block; }

/* 08 Journey：作品ページ */
.journey-page { background: var(--paper); }
.journey-page > main { width: min(100% - 2.3rem, 94rem); margin: 0 auto; padding-bottom: 1.2rem; }
.case-hero { padding: 2rem clamp(1rem, 3vw, 3rem) 1.2rem; }
.back-button { display: inline-block; padding: 0.65rem 0; color: var(--accent); font-size: 0.76rem; font-weight: 600; }
.case-hero__heading { display: flex; margin: clamp(2.5rem, 4vw, 4rem) 0 2rem; padding-bottom: clamp(1.25rem, 2vw, 2rem); align-items: end; justify-content: space-between; }
.case-hero__heading p { margin: 0 0 0.8rem; color: var(--accent); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; }
.case-hero__heading h1 { margin: 0; font-family: var(--font-display); font-size: clamp(5.5rem, 14vw, 13rem); font-weight: 500; line-height: 0.7; letter-spacing: -0.075em; }
/* 制作事例を読む前に実サイトへ移動する、2作品共通の小さな導線。 */
.case-hero__utility { display: flex; align-items: end; justify-content: flex-end; gap: 1.25rem 2rem; margin-bottom: 2rem; }
.case-hero__utility > p { margin: 0; margin-right: auto; }
.project-live-link { display: inline-flex; flex: 0 0 auto; align-items: center; gap: 0.65rem; padding: 0.5rem 0; color: var(--accent); border-bottom: 1px solid var(--line); font-size: 0.8rem; font-weight: 500; line-height: 1.5; text-decoration: none; transition: opacity 180ms ease; }
.project-live-link > span { display: inline-block; transition: transform 180ms ease; }
@media (hover: hover) and (pointer: fine) {
  .project-live-link:hover { opacity: 0.72; }
  .project-live-link:hover > span { transform: translate(2px, -2px); }
}
@media (max-width: 700px) {
  .case-hero__utility { flex-direction: column; align-items: flex-start; gap: 1.25rem; margin-bottom: 1.5rem; }
}
.case-hero > img { width: 100%; height: auto; aspect-ratio: 2826 / 1494; object-fit: cover; border-radius: 1.2rem 4rem 1.2rem 1.2rem; }
.award-block { display: grid; grid-template-columns: 7fr 5fr; min-height: clamp(38rem, 70dvh, 44rem); padding: clamp(2.5rem, 4vw, 4rem); gap: clamp(3rem, 8vw, 8rem); align-items: center; color: var(--paper); background: radial-gradient(circle at 78% 16%, rgba(199, 220, 213, 0.2), transparent 25rem), var(--accent); border-radius: 2.5rem; }
.award-block__copy > img { width: clamp(4.8rem, 8vw, 7.5rem); height: auto; margin-bottom: clamp(2.5rem, 4vw, 4rem); }
.award-block__copy h2 { margin: 0; font-family: var(--font-display); font-size: clamp(3.5rem, 7vw, 7rem); font-weight: 500; line-height: 0.82; letter-spacing: -0.06em; }
.award-block__copy > p { max-width: 27rem; margin: 2rem 0; font-size: 0.88rem; line-height: 1.9; }
.award-block :focus-visible, .live-project :focus-visible { outline-color: var(--paper); }
.certificate-preview { margin: 0; padding: 1.2rem; color: var(--ink); background: rgba(248, 244, 236, 0.94); border-radius: 1rem 2.5rem 1rem 1rem; box-shadow: 0 2rem 6rem rgba(4, 34, 29, 0.28); transform: rotate(1.5deg); user-select: none; }
.certificate-preview img { width: 100%; height: auto; max-height: 39rem; object-fit: contain; pointer-events: none; }
.certificate-preview figcaption { margin-top: 0.8rem; color: var(--muted); font-size: 0.62rem; letter-spacing: 0.06em; text-transform: uppercase; }
.case-story { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(3rem, 8vw, 8rem); padding: clamp(5rem, 8vw, 8rem) clamp(1rem, 3vw, 3rem); }
.case-story__title { position: sticky; top: calc(var(--tab-height) + 2.75rem); align-self: start; }
.case-story__title h2 { margin: 1.4rem 0 0; font-family: var(--font-display); font-size: clamp(2.4rem, 4.7vw, 4.7rem); font-weight: 500; line-height: 0.95; letter-spacing: -0.045em; }
.case-story__lead { max-width: 43rem; margin: 0 0 clamp(2.5rem, 5vw, 5rem); font-size: clamp(1.1rem, 1.8vw, 1.45rem); line-height: 2; }
.case-story__content > img { width: 100%; height: clamp(24rem, 45vw, 42rem); object-fit: cover; border-radius: 1rem 2.5rem 1rem 1rem; }
.project-details { padding: 0 clamp(1rem, 3vw, 3rem) clamp(4rem, 7vw, 7rem); border-top: 1px solid var(--line); }
.project-detail { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(3rem, 8vw, 8rem); padding: clamp(3.5rem, 6vw, 6rem) 0; align-items: start; border-bottom: 1px solid var(--line); }
.project-detail header { display: grid; grid-template-columns: 2.4rem minmax(0, 1fr); gap: 0.8rem; align-items: start; }
.project-detail header > span { padding-top: 0.45rem; color: var(--accent); font-size: 0.68rem; font-variant-numeric: tabular-nums; letter-spacing: 0.08em; }
.project-detail h2 { margin: 0; font-family: var(--font-display); font-size: clamp(2.7rem, 5vw, 5rem); font-weight: 500; line-height: 0.95; letter-spacing: -0.05em; }
.project-detail > p { max-width: 46rem; margin: 0; font-size: clamp(0.98rem, 1.25vw, 1.14rem); line-height: 2.05; }
.project-credits { margin: 0; }
.project-credits > div { display: grid; grid-template-columns: 8rem minmax(0, 1fr); gap: 1.5rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.project-credits > div:first-child { padding-top: 0; }
.project-credits > div:last-child { border-bottom: 0; }
.project-credits dt { color: var(--accent); font-size: 0.68rem; letter-spacing: 0.07em; text-transform: uppercase; }
.project-credits dd { margin: 0; font-size: 0.9rem; line-height: 1.7; }
.live-project { display: flex; min-height: 22rem; margin-top: 1.2rem; padding: clamp(2rem, 5vw, 5rem); align-items: end; justify-content: space-between; gap: 2rem; color: var(--paper); background: var(--accent); border-radius: 2.5rem; }
.live-project p { margin: 0 0 0.8rem; font-size: 0.68rem; letter-spacing: 0.09em; text-transform: uppercase; }
.live-project h2 { margin: 0; font-family: var(--font-display); font-size: clamp(3rem, 7vw, 7rem); font-weight: 500; line-height: 0.9; letter-spacing: -0.06em; }

/* 09 読み込み画面：本文は隠さず、オーバーレイだけを表示 */
.portfolio-loader { position: fixed; inset: 0; z-index: 200; display: grid; place-items: center; color: var(--accent); background: var(--paper); transition: opacity 400ms, visibility 400ms; }
.portfolio-loader.is-leaving { opacity: 0; visibility: hidden; pointer-events: none; }
.portfolio-loader__brand { display: flex; align-items: center; gap: clamp(0.8rem, 1.5vw, 1.25rem); margin-top: -8rem; font-size: clamp(2rem, 4.2vw, 4.2rem); letter-spacing: -0.045em; }
.portfolio-loader__brand img { width: clamp(3rem, 5vw, 5rem); height: auto; }
.portfolio-loader__progress { position: absolute; top: calc(50% + 2rem); display: grid; justify-items: center; width: min(68vw, 35rem); font-variant-numeric: tabular-nums; }
.portfolio-loader__progress > span { font-family: var(--font-display); font-size: clamp(1.75rem, 3.4vw, 2.9rem); }
.portfolio-loader__progress > span b { font-weight: 400; }
.portfolio-loader__progress > span small { font-family: var(--font-sans); font-size: 0.4em; }
.portfolio-loader__progress > i { display: block; width: 100%; height: 1px; margin-top: 1rem; background: rgba(13, 86, 77, 0.18); }
.portfolio-loader__progress > i b { display: block; width: 0; height: 100%; background: currentColor; transition: width 100ms linear; }
.portfolio-loader__progress > small { margin-top: 0.5rem; font-size: 0.55rem; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; }

/* 10 タブレット（900px以下） */
@media (max-width: 900px) {
  .tabbar__brand > span { display: none; }
  .work-archive.is-multiple, .about-directory, .contact-layout, .award-block, .case-story, .project-detail { grid-template-columns: 1fr; }
  /* タップした作品のプレビューがすぐ下に見える順序。 */
  .work-archive.is-multiple .work-index { grid-row: 1; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; border-top: 0; overflow: visible; }
  .work-archive.is-multiple .work-previews { grid-row: 2; }
  .work-index li { grid-template-columns: minmax(0, 1fr) 2rem; border-top: 1px solid var(--line); }
  .work-index__select { min-height: 4.5rem; grid-template-columns: 1.25rem minmax(0, 1fr); padding: 0.7rem 0.45rem; gap: 0.35rem; }
  .work-index__title small, .work-index__year { display: none; }
  .work-index__title strong { font-size: clamp(0.9rem, 2.7vw, 1.5rem); }
  .about-profile-card { display: grid; grid-template-columns: 1fr 1fr; gap: 0 2rem; margin-bottom: 1.5rem; }
  .about-profile-card__image { grid-row: 1 / span 2; }
  .about-profile-card h3 { align-self: end; }
  .career-timeline { grid-column: 1 / -1; }
  .case-story__title { position: static; }
}

/* 11 スマートフォン（700px以下） */
@media (max-width: 700px) {
  :root { --tab-height: 4rem; }
  .tabbar { grid-template-columns: 1fr auto; padding: 0.55rem 0.75rem; align-items: center; }
  .tabbar__brand { align-self: center; height: auto; }
  .tabbar__brand > span { display: inline; }
  .tabbar__mark { width: 1.8rem; height: 1.8rem; }
  .js .tabbar__toggle { display: grid; width: 2.8rem; height: 2.8rem; padding: 0.72rem; place-content: center; gap: 0.28rem; background: rgba(248, 244, 236, 0.72); border: 1px solid var(--line); border-radius: 0.75rem; cursor: pointer; }
  .tabbar__toggle span { width: 1.15rem; height: 1px; background: currentColor; transition: transform 220ms, opacity 180ms; }
  .is-menu-open .tabbar__toggle span:first-child { transform: translateY(0.34rem) rotate(45deg); }
  .is-menu-open .tabbar__toggle span:nth-child(2) { opacity: 0; }
  .is-menu-open .tabbar__toggle span:last-child { transform: translateY(-0.34rem) rotate(-45deg); }
  .js .tabs { position: absolute; top: 100%; right: 0.75rem; left: 0.75rem; display: grid; visibility: hidden; padding: 0.65rem; background: rgba(248, 244, 236, 0.98); border: 1px solid var(--line); border-radius: 0 0 1rem 1rem; box-shadow: 0 1.2rem 2.8rem rgba(13, 86, 77, 0.15); opacity: 0; transform: translateY(-0.5rem); transition: opacity 180ms, transform 220ms, visibility 220ms; }
  .js .is-menu-open .tabs { visibility: visible; opacity: 1; transform: translateY(0); }
  .js .tab { width: 100%; height: 2.75rem; padding: 0 0.85rem; background: transparent; border: 0; border-radius: 0.65rem; }
  .js .tab.is-active { background: var(--mist); }
  /* JavaScriptが無効でもスマホからメニューに移動できます。 */
  html:not(.js) .tabbar { height: auto; }
  html:not(.js) .tabs { grid-column: 1 / -1; margin-top: 0.5rem; }
  html:not(.js) .tab { padding: 0 0.75rem; gap: 0.5rem; }
  .sheet-heading h2 { font-size: clamp(3rem, 17vw, 5rem); }
  .hero { padding: 1.25rem; }
  .hero__name { max-width: 88%; padding-top: 3rem; }
  .hero__name h1 { font-size: clamp(4rem, 21vw, 6.1rem); }
  .hero__media::after { background: linear-gradient(180deg, rgba(225, 235, 234, 0.68), transparent 44%), linear-gradient(0deg, rgba(16, 32, 30, 0.28), transparent 28%); }
  .hero__scroll { right: 1.25rem; bottom: 4.45rem; left: 1.25rem; font-size: 0.55rem; gap: 1rem; }
  .work-panel { height: 33rem; }
  .work-panel__body { display: block; }
  .work-panel__body h3 { font-size: clamp(2.4rem, 10vw, 3.1rem); }
  .work-panel__button { width: 100%; margin-top: 1.3rem; }
  .work-meta { grid-template-columns: 1fr; }
  .about-directory, .about-profile-card { display: block; }
  .about-profile-card { margin-bottom: 2.5rem; }
  .about-profile-card__image { aspect-ratio: 3 / 2; }
  .about-accordion__item button { grid-template-columns: 2.5rem minmax(0, 1fr); }
  .about-accordion__item button small { display: none; }
  .about-accordion__inner { padding-left: 3.4rem; }
  .contact-layout { gap: 2.5rem; }
  .contact-layout h2 { font-size: 3.25rem; }
  .contact-mail { font-size: 1.35rem; }
  .contact-mail__break { display: block; }
  .footer { flex-wrap: wrap; font-size: 0.62rem; }
  .journey-page > main { width: calc(100% - 0.9rem); }
  .case-hero { padding: 1rem 0.8rem 0.9rem; }
  .case-hero__heading h1 { font-size: 5rem; }
  .case-hero__heading > p { font-size: 0.6rem; }
  .case-hero > img { height: 23rem; aspect-ratio: auto; object-position: center; border-radius: 0.9rem 2rem 0.9rem 0.9rem; }
  .award-block { padding: 1.5rem; border-radius: 1.4rem; }
  .award-block__copy h2 { font-size: 3.8rem; }
  .certificate-preview { transform: none; }
  .case-story, .project-details { padding-right: 1.3rem; padding-left: 1.3rem; }
  .case-story__title h2 { font-size: 2.45rem; }
  .case-story__content > img { height: 29rem; }
  .project-detail { gap: 2rem; padding: 3.5rem 0; }
  .project-detail h2 { font-size: 2.7rem; }
  .project-credits > div { grid-template-columns: 1fr; gap: 0.35rem; }
  .live-project { display: block; min-height: 20rem; padding: 1.5rem; border-radius: 1.4rem; }
  .live-project .arrow-link { margin-top: 4rem; }
}

/* 12 動きを減らす設定：情報は残し、演出だけ停止 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .case-story__title { position: static; }
}