/* =========================================================
   トークン
   ========================================================= */
:root {
  --bg: #FAF8F5;
  --bg-alt: #F1EDE6;
  --ink: #1C1B19;
  --ink-soft: #726C64;
  --heading: #4A453F;
  --line: #DDD7CB;
  --accent: #A6907E;

  --font-display-en: "Cormorant Garamond", serif;
  --font-display-ja: "Noto Serif JP", serif;
  --font-body-en: "Inter", sans-serif;
  --font-body-ja: "Noto Sans JP", sans-serif;

  --gap: clamp(1.25rem, 3vw, 2.5rem);
  --edge: clamp(1.25rem, 5vw, 4rem);
}

/* =========================================================
   リセット / 基本設定
   ========================================================= */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body-ja);
  font-weight: 300;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

html[data-lang="en"] body { font-family: var(--font-body-en); }

/* 言語ごとに表示するセクション・ナビを切り替える */
html[data-lang="en"] #about { display: none; }
html[data-lang="ja"] #cv { display: none; }
html[data-lang="en"] .nav-ja-only { display: none; }
html[data-lang="ja"] .nav-en-only { display: none; }

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2 {
  font-family: var(--font-body-ja);
  font-weight: 300;
  color: var(--heading);
  margin: 0;
  letter-spacing: 0.02em;
}
html[data-lang="en"] h1,
html[data-lang="en"] h2 { font-family: var(--font-body-en); font-weight: 300; }

/* 日本語/英語 切り替え：非表示側は data 属性の中身を差し替える方式（script.js側で処理） */

/* =========================================================
   ヘッダー
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem var(--edge);
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.logo {
  font-family: var(--font-display-en);
  font-style: italic;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
}

.main-nav {
  display: flex;
  gap: 2rem;
}

.main-nav a {
  font-family: var(--font-body-en);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  position: relative;
  padding-bottom: 2px;
}

.main-nav a:hover { color: var(--ink); }

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--accent);
  transition: right 0.25s ease;
}
.main-nav a:hover::after { right: 0; }

.header-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}

.lang-switch button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--ink-soft);
  font: inherit;
  padding: 0.2rem;
}

.lang-switch button.is-active { color: var(--ink); border-bottom: 1px solid var(--accent); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 24px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span {
  display: block;
  height: 1px;
  background: var(--ink);
  width: 100%;
}

/* =========================================================
   ヒーロー
   ========================================================= */
.hero {
  position: relative;
  height: 88vh;
  min-height: 480px;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(6%);
}

/* =========================================================
   セクション見出し 共通
   ========================================================= */
.section-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.3rem;
  padding: 6rem var(--edge) 2.5rem;
}

.section-num {
  font-family: var(--font-body-en);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  border-top: 1px solid var(--accent);
  padding-top: 0.4rem;
}

.section-head h2,
.about-text h2,
.contact h2 {
  font-size: clamp(1.3rem, 2.2vw, 1.7rem);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* =========================================================
   ギャラリー
   ========================================================= */
.gallery { padding-bottom: 4rem; }

.work-statement {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 0 var(--edge) 3rem;
  margin: 0;
  max-width: 42rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
}
.work-statement p { margin: 0; }

.ig-embeds {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 0;
  padding: 0 var(--edge) 3rem;
  max-width: 64rem;
}
.ig-embeds > blockquote {
  flex: 1 1 320px;
}

.related-links {
  padding: 0 var(--edge) 3rem;
  max-width: 42rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.related-links-label {
  font-family: var(--font-body-en);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0;
}

.related-link {
  font-size: 0.95rem;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
  padding-bottom: 1px;
  width: fit-content;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.related-link:hover { color: var(--ink); border-color: var(--accent); }

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
  padding: 0 var(--edge);
}

.work {
  margin: 0;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.work.is-visible { opacity: 1; transform: translateY(0); }

.work-media {
  overflow: hidden;
  background: var(--bg-alt);
  aspect-ratio: 4 / 5;
}

.work-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.work:hover .work-media img { transform: scale(1.04); }

.work figcaption {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
  margin-top: 0.9rem;
}

.work-no {
  font-family: var(--font-body-en);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.work-title {
  font-family: var(--font-display-ja);
  font-size: 1.05rem;
}
html[data-lang="en"] .work-title { font-family: var(--font-display-en); font-style: italic; }

.work-meta {
  font-family: var(--font-body-en);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}

/* =========================================================
   プロフィール
   ========================================================= */
.about {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--gap);
  padding: 6rem var(--edge);
  border-top: 1px solid var(--line);
  background: var(--bg-alt);
}

/* 写真なしのプロフィール（1カラム表示） */
.about--no-media {
  grid-template-columns: 1fr;
  justify-items: start;
}
.about--no-media .about-text {
  max-width: 40rem;
  justify-content: flex-start;
}

.about-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1.1rem;
  max-width: 34rem;
}

.about-text .section-head {
  padding: 0;
  margin-bottom: 0.6rem;
}


.about-text p {
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.artist-heading {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  margin-top: -0.4rem;
}

.artist-name {
  font-family: var(--font-body-en);
  font-weight: 400;
  font-size: 1rem;
  color: var(--ink-soft);
  margin: 0;
}

.artist-meta {
  font-family: var(--font-body-en);
  font-size: 1rem;
  color: var(--ink-soft);
  margin: 0;
}

/* ---- 折りたたみ（CV用） / バイオグラフィー本文 ---- */
details {
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}

summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-body-en);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
summary::-webkit-details-marker { display: none; }

summary::after {
  content: "+";
  font-family: var(--font-display-en);
  font-size: 1rem;
  color: var(--accent);
  transition: transform 0.25s ease;
  flex-shrink: 0;
}
details[open] > summary::after { content: "–"; }

summary:hover { color: var(--ink); }

.bio-full {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-top: 1.4rem;
  font-size: 0.92rem;
  color: var(--ink-soft);
}
.bio-full p { margin: 0; }

/* =========================================================
   CV
   ========================================================= */
.cv {
  padding-bottom: 6rem;
  border-top: 1px solid var(--line);
}

.cv-body {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0 var(--edge) 0 calc(var(--edge) + clamp(2rem, 12vw, 9rem));
  max-width: 46rem;
}

.cv-profile {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding-bottom: 2rem;
}

.cv-profile-name {
  font-family: var(--font-body-en);
  font-size: 1rem;
  color: var(--ink-soft);
  margin: 0;
}

.cv-profile-meta {
  font-family: var(--font-body-en);
  font-size: 1rem;
  color: var(--ink-soft);
  margin: 0;
}

.cv-group {
  border-top: 1px solid var(--line);
  padding: 1.3rem 0;
}
.cv-group summary { padding: 0; }

.cv-group dl {
  margin: 0;
  padding-top: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.cv-entry {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 1rem;
  font-size: 0.85rem;
}

.cv-entry dt {
  font-family: var(--font-body-en);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.cv-entry dd {
  margin: 0;
  color: var(--ink-soft);
  font-family: var(--font-body-en);
}

.cv-entry:has(dt:empty),
.cv-entry:not(:has(dt)) {
  grid-template-columns: 1fr;
}

/* =========================================================
   連絡先 / フッター
   ========================================================= */
.contact {
  padding: 0 0 5rem;
  border-top: 1px solid var(--line);
}

.contact-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.2rem;
  padding: 0 var(--edge);
}

.contact-note {
  font-size: 0.95rem;
  color: var(--ink-soft);
  max-width: 30rem;
  margin: 0;
}

.contact-notes {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.contact-email {
  font-family: var(--font-body-en);
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--accent);
  margin: 1.6rem 0;
}

.social-links {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  color: var(--ink-soft);
}
.social-row {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}
.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.social-links svg { width: 1.05rem; height: 1.05rem; }
.social-links a:hover { color: var(--ink); border-color: var(--accent); }
.social-note {
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.copyright {
  margin: 0;
  font-family: var(--font-body-en);
  font-size: 0.7rem;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}

.site-footer {
  text-align: center;
  padding: 2.5rem var(--edge);
  border-top: 1px solid var(--line);
}

/* =========================================================
   レスポンシブ
   ========================================================= */
@media (max-width: 860px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .about { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .main-nav {
    position: fixed;
    inset: 64px 0 0 0;
    z-index: 90;
    background: var(--bg);
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem var(--edge);
    gap: 1.5rem;
    transform: translateX(100%);
    transition: transform 0.3s ease;
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav a { font-size: 0.95rem; }

  .nav-toggle { display: flex; }

  .grid { grid-template-columns: 1fr; }

  .cv-body { padding-left: var(--edge); }

  .section-head,
  .about { padding-left: var(--edge); padding-right: var(--edge); }
}

/* =========================================================
   アクセシビリティ配慮
   ========================================================= */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .work { transition: none; opacity: 1; transform: none; }
  .work-media img { transition: none; }
}