/* ============================================================
   川本悠肖子 | 日本画作家 — Stylesheet
   トンマナ: 温かみのある白地 × ウォームブラウン × ローズピンク
   ============================================================ */

/* ---------- Custom Properties ---------- */
:root {
  /* ── Colors ── */
  --clr-bg:          #FAFAFA;         /* 背景白 */
  --clr-bg-section:  #F3F3F3;         /* セクション背景 */
  --clr-page-border: #E2C4BC;         /* ページ枠線（サーモンピンク） */
  --clr-heading:     #7D5C3C;         /* 見出し：ウォームブラウン */
  --clr-accent:      #C4918A;         /* アクセント：ローズピンク */
  --clr-accent-lt:   #F5E8E6;         /* アクセント薄 */
  --clr-text:        #2C2420;         /* 本文 */
  --clr-text-sub:    #9B8880;         /* サブテキスト */
  --clr-line:        #EAE4DF;         /* 区切り線 */
  --clr-badge-bg:    rgba(0,0,0,0.38);/* 販売中バッジ背景 */
  --clr-placeholder: #D6CEC9;         /* プレースホルダー */

  /* ── Typography ── */
  --font-ja:         'Noto Serif JP', serif;
  --font-ja-heading: 'Hannari', 'Noto Serif JP', serif;  /* はんなり明朝 */
  --font-en:         'Merriweather', serif;
  --font-ui:         system-ui, -apple-system, sans-serif;

  /* ── Layout ── */
  --nav-h:   60px;
  --max-w:   1080px;
  --border-w: 0px;                /* ページ枠線なし */

  /* ── Motion ── */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --dur:  0.3s;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--clr-bg);
  color: var(--clr-text);
  font-family: var(--font-ja-heading);
  font-weight: 300;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;

  min-height: 100vh;
}
img { display: block; max-width: 100%; height: auto; }
a   { color: inherit; text-decoration: none; }
ul  { list-style: none; }

/* ---------- スキップリンク ---------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  background: var(--clr-accent);
  color: #fff;
  padding: 0.5em 1.5em;
  border-radius: 0 0 6px 6px;
  font-size: 0.875rem;
  font-family: var(--font-ja);
  transition: top 0.2s;
}
.skip-link:focus {
  top: 0;
}

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 3rem);
}

/* ---------- Section ---------- */
.section { padding-block: clamp(4rem, 9vw, 6.5rem); }

/* ---------- Section Header（左揃え + 左ローズバー） ---------- */
.section-header { margin-bottom: clamp(1.5rem, 3vw, 2rem); }

.section-eyebrow {
  display: none; /* Canvaサイトにeyebrowなし → 非表示 */
}

.section-title {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-en);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 400;
  color: var(--clr-heading);
  letter-spacing: 0.04em;
}
/* 左のローズバー */
.section-title::before {
  content: '';
  display: block;
  width: 6px;
  height: 1em;
  background: var(--clr-accent);
  flex-shrink: 0;
  border-radius: 2px;
}


/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-ja);
  font-size: 1rem;
  letter-spacing: 0.1em;
  padding: 0.75em 2.2em;
  cursor: pointer;
  border-radius: 100px;
  transition: background var(--dur) var(--ease),
              color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}
.btn-primary {
  background: var(--clr-accent);
  color: #fff;
  border: 1.5px solid var(--clr-accent);
}
.btn-primary:hover {
  background: #fff;
  color: var(--clr-accent);
  box-shadow: 0 2px 16px rgba(196,145,138,0.25);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.7);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.15);
  border-color: #fff;
}


/* ---------- Placeholder images ---------- */
.placeholder-img {
  background: var(--clr-bg-section);
  border: 1.5px dashed var(--clr-placeholder);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-placeholder);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-align: center;
  line-height: 1.7;
  width: 100%;
}
.placeholder-img--hero    { height: 100%; }
.placeholder-img--large   { aspect-ratio: 4/3; }
.placeholder-img--medium  { aspect-ratio: 4/3; }
.placeholder-img--small   { aspect-ratio: 1/1; }
.placeholder-img--portrait{ aspect-ratio: 3/4; }
.placeholder-label { padding: 1rem; pointer-events: none; }


/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: fixed;
  inset: var(--border-w) var(--border-w) auto var(--border-w); /* ボーダーの内側 */
  z-index: 100;
  height: var(--nav-h);
  background: rgba(253,250,248,0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--clr-line);
  transition: box-shadow var(--dur) var(--ease);
}
.site-header.scrolled { box-shadow: 0 2px 16px rgba(125,92,60,0.08); }

.header-inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 3rem);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ロゴ */
.site-logo { display: flex; flex-direction: column; line-height: 1.3; }
.logo-ja {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--clr-heading);
  letter-spacing: 0.08em;
}
.logo-en {
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--clr-text-sub);
}

/* ナビ */
.site-nav ul { display: flex; gap: 1.75rem; align-items: center; }
.nav-link {
  font-family: var(--font-en);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--clr-text-sub);
  transition: color var(--dur) var(--ease);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--clr-accent);
  transition: width var(--dur) var(--ease);
}
.nav-link:hover, .nav-link.active             { color: var(--clr-heading); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

/* ハンバーガー */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--clr-heading);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }


/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: calc(100svh - var(--border-w) * 2);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  padding-top: var(--nav-h);
  overflow: hidden;
}

/* ─ テキストエリア（画像の上） ─ */
.hero-text-area {
  padding: clamp(2.5rem, 6vw, 4.5rem) clamp(1.25rem, 5vw, 3rem) clamp(2rem, 4vw, 3rem);
  max-width: var(--max-w);
  width: 100%;
  margin-inline: auto;
}
.hero-label {
  font-family: var(--font-en);
  font-size: 0.78rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--clr-text-sub);
  margin-bottom: 0.6rem;
}
.hero-title {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 1rem;
}
.hero-title-en {
  font-family: var(--font-en);
  font-size: clamp(2.6rem, 7vw, 5rem);
  font-weight: 400;
  color: var(--clr-heading);
  letter-spacing: 0.03em;
  line-height: 1.1;
}
.hero-title-ja {
  font-family: var(--font-ja-heading);
  font-size: clamp(1.5rem, 4.2vw, 2.4rem);
  font-weight: 500;
  color: var(--clr-heading);
  letter-spacing: 0.12em;
  margin-top: 0;
  line-height: 1.6;
}
.hero-concept {
  font-size: clamp(1.05rem, 1.9vw, 1.2rem);
  font-weight: 500;
  color: var(--clr-text-sub);
  line-height: 1.9;
  margin-top: 2.25rem;
  margin-bottom: 1.75rem;
}
.hero-concept em {
  font-family: var(--font-en);
  font-style: italic;
  font-size: 1.1em;
  color: var(--clr-heading);
}

/* ─ ビジュアル（アーチ型） ─ */
.hero-visual-wrap {
  width: 100%;
  max-width: 1000px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 3rem);
}
.hero-visual {
  width: 100%;
  border-radius: 50% 50% 0 0 / 12% 12% 0 0; /* 上部をアーチ型に */
  overflow: hidden;
  aspect-ratio: 16/9;
}
.hero-visual img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center top;
}
.placeholder-img--hero {
  border-radius: inherit;
  aspect-ratio: 16/9;
  height: auto;
}

/* トップ画像キャプション */
.hero-image-caption {
  text-align: right;
  font-size: 0.75rem;
  color: var(--clr-text-sub);
  letter-spacing: 0.08em;
  margin-top: 0.35rem;
  padding-right: 0.5rem;
}

/* シェイプド作品：白背景でobject-fit:contain */
.work-thumb--shaped img {
  object-fit: contain;
  background: #fff;
}


/* ============================================================
   WORKS
   ============================================================ */
/* カテゴリラベル */
.works-category { margin-bottom: clamp(3rem, 6vw, 4.5rem); }
.works-tap-note {
  font-size: 0.8rem;
  color: var(--clr-text-sub);
  letter-spacing: 0.06em;
  margin-top: 0.5rem;
  margin-bottom: 1.75rem;
}
.works-category-label {
  font-family: var(--font-en);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-accent);
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--clr-line);
  margin-bottom: 2rem;
}

/* ─ 大作カード ─ */
.work-large {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
  margin-bottom: clamp(3rem, 6vw, 4rem);
  padding-bottom: clamp(3rem, 6vw, 4rem);
  border-bottom: 1px solid var(--clr-line);
}
.work-large:last-child { border-bottom: none; padding-bottom: 0; margin-bottom: 0; }

.work-large-visual { overflow: hidden; position: relative; }
.work-large-visual img,
.work-large-visual .placeholder-img {
  width: 100%;
  transition: transform 0.6s var(--ease);
}
.work-large-visual:hover img,
.work-large-visual:hover .placeholder-img { transform: scale(1.025); }

.work-title {
  font-family: var(--font-ja-heading);
  font-size: clamp(1.1rem, 2.2vw, 1.45rem);
  font-weight: 500;
  color: var(--clr-heading);
  letter-spacing: 0.06em;
  margin-bottom: 1.25rem;
}

/* メタ情報（サイズ・技法・制作年・コンセプト） */
.work-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.work-meta-row {
  display: grid;
  grid-template-columns: 5em 1fr;
  gap: 0.5rem;
  font-size: 0.875rem;
  align-items: baseline;
}
.work-meta-row dt {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--clr-accent);
  text-transform: uppercase;
  padding-top: 0.15em;
}
.work-meta-row dd {
  color: var(--clr-text);
  font-weight: 400;
  line-height: 1.75;
}

/* お問い合わせ注記 */
.work-inquiry-note {
  font-size: 0.8rem;
  color: var(--clr-text-sub);
  padding: 0.55em 1em;
  border-left: 3px solid var(--clr-accent);
  background: var(--clr-accent-lt);
  margin-bottom: 1.25rem;
  letter-spacing: 0.03em;
}

.work-contact-btn { font-size: 0.9rem; padding-inline: 1.5em; white-space: nowrap; }

/* ─ 中作・小作グリッド ─ */
.works-grid { display: grid; gap: clamp(1.25rem, 3vw, 2rem); }
.works-grid--medium { grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }
.works-grid--small  { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }

.work-card { display: flex; flex-direction: column; }
.work-thumb {
  position: relative;
  overflow: hidden;
  margin-bottom: 0.65rem;
}
.work-thumb .placeholder-img,
.work-thumb img {
  width: 100%;
  transition: transform 0.5s var(--ease);
}
.work-card:hover .work-thumb .placeholder-img,
.work-card:hover .work-thumb img { transform: scale(1.04); }

/* バッジ共通 */
.work-badge {
  position: absolute;
  top: 0.35rem; left: 0.35rem;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  padding: 0.28em 0.8em;
  border-radius: 3px;
  color: #fff;
}
/* 販売中 — ローズピンク中間（不透明度90%） */
.work-badge:not(.work-badge--sold) {
  background: rgba(204, 156, 150, 0.9);
}
/* sold — グレーブラウン中間・やや暗め（不透明度90%） */
.work-badge--sold {
  background: rgba(114, 99, 93, 0.9);
}

.work-card-info { flex: 1; }
.work-card-title {
  font-family: var(--font-ja-heading);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--clr-heading);
  letter-spacing: 0.04em;
  margin-bottom: 0.15rem;
}
.work-card-meta {
  font-size: 0.82rem;
  color: var(--clr-text);
  font-weight: 400;
  letter-spacing: 0.03em;
}
.work-card--small .work-card-title { font-size: 0.86rem; }
.work-card--small .work-card-meta  { font-size: 0.76rem; }
.work-card-price {
  margin-top: 0.25rem;
  font-size: 0.82rem;
  color: var(--clr-text);
  letter-spacing: 0.03em;
}
.work-card--small .work-card-price { font-size: 0.76rem; }
.work-card-price-tax {
  font-size: 0.72em;
  color: var(--clr-text-sub);
}
.work-thumb-link {
  display: block;
  width: 100%;
  height: 100%;
}


/* ============================================================
   ABOUT
   ============================================================ */
.about-section { background: var(--clr-bg-section); }

/* 2エリアラッパー */
.about-wrapper {
  display: flex;
  flex-direction: column;
  gap: clamp(3.5rem, 7vw, 5.5rem);
}

/* ── Area 1: 想い ── */
.about-message {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: clamp(2.5rem, 5vw, 4.5rem);
  align-items: start;
  padding-bottom: clamp(3rem, 6vw, 4.5rem);
  border-bottom: 1px solid var(--clr-line);
}
.about-identity {
  position: static;
  text-align: center;
}
.about-portrait {
  width: 100%;
  border-radius: 50%;
  display: block;
  margin-bottom: 0.75rem;
}
.about-tag {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--clr-accent);
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}
.about-name {
  font-family: var(--font-ja-heading);
  font-size: clamp(1.25rem, 2.5vw, 1.6rem);
  font-weight: 400;
  color: var(--clr-heading);
  letter-spacing: 0.1em;
  margin-bottom: 0.2rem;
}
.about-name-en {
  font-family: var(--font-en);
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  color: var(--clr-text-sub);
  margin-bottom: 0.85rem;
}
.about-instagram-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-ja);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--clr-heading);
  border: 1.5px solid var(--clr-accent);
  border-radius: 100px;
  padding: 0.4em 1.1em;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.about-instagram-link:hover {
  color: #fff;
  background: var(--clr-accent);
  border-color: var(--clr-accent);
}
.about-instagram-link + .about-instagram-link {
  margin-top: 0.6rem;
}
.about-bio {
  font-size: 0.9375rem;
  line-height: 1.85;
  margin-bottom: 1.5rem;
  color: var(--clr-text);
}
.about-philosophy-quote {
  font-family: var(--font-ja-heading);
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 400;
  color: var(--clr-heading);
  letter-spacing: 0.12em;
  text-align: center;
  border-top: 1px solid var(--clr-line);
  border-bottom: 1px solid var(--clr-line);
  padding: 1.25rem;
  margin: 1.75rem 0;
}
.about-tool-imgs {
  display: flex;
  gap: 0.6rem;
  margin-top: 1.5rem;
}
.about-table-img {
  width: 50%;
  border-radius: 4px;
  display: block;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

/* ── Area 2: プロフィール詳細 ── */
/* (section label reuses .works-category-label) */

/* About ブロック */
.about-block { margin-bottom: 1.75rem; }
.about-block-title { font-size: 0; margin-bottom: 0.85rem; }
.about-block-accent {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clr-accent);
}
.about-block-accent::before {
  content: '';
  display: block;
  width: 4px; height: 0.9em;
  background: var(--clr-accent);
  border-radius: 2px;
}

.about-list { display: flex; flex-direction: column; }
.about-list li {
  display: grid;
  grid-template-columns: 6em 1fr;
  gap: 0.75rem;
  padding-block: 0.65rem;
  border-bottom: 1px solid var(--clr-line);
  font-size: 0.875rem;
  align-items: baseline;
}
.about-list li:first-child { border-top: 1px solid var(--clr-line); }
/* 年号なし行：1カラムで全幅 */
.about-list--no-year li { grid-template-columns: 1fr; }

.about-list-year {
  font-family: var(--font-en);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--clr-text-sub);
  white-space: nowrap;
}
.about-list-text { line-height: 1.8; color: var(--clr-text); }
/* 東京藝大・出光美術館 強調（本文カラーに統一） */
.about-list-text strong.highlight,
.about-list-text strong.highlight-museum {
  font-weight: 500;
  color: var(--clr-text);
  letter-spacing: 0.04em;
}
.about-list-text--accent {
  color: var(--clr-heading);
  font-weight: 500;
}



/* ============================================================
   CONTACT
   ============================================================ */
.contact-section { background: var(--clr-bg); }

.contact-inner {
  max-width: 680px;
}
.contact-lead {
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--clr-text);
  margin-bottom: 2rem;
}

.contact-channels {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}
.contact-channel-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  padding: 0.65em 1.5em;
  border: 1.5px solid var(--clr-accent);
  border-radius: 100px;
  color: var(--clr-heading);
  transition: border-color var(--dur) var(--ease),
              color var(--dur) var(--ease),
              background var(--dur) var(--ease);
}
.contact-channel-btn:hover {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  color: #fff;
}

/* Google Form 埋め込みエリア */
.form-embed-label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 1rem;
}
.form-embed-area {
  max-width: 680px;
  margin-inline: auto;
}
.form-embed-area iframe { width: 100%; border: none; display: block; }
.form-embed-placeholder {
  background: var(--clr-bg);
  border: 1.5px dashed var(--clr-placeholder);
  padding: 3.5rem 2rem;
  text-align: center;
  color: var(--clr-placeholder);
  font-size: 0.875rem;
  line-height: 2;
  border-radius: 4px;
}
.form-embed-hint { font-size: 0.72rem; margin-top: 0.25rem; }


/* ============================================================
   WORKS SHOP BUTTON
   ============================================================ */
.works-shop-wrap {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}
.works-shop-btn {
  text-align: center;
  line-height: 1.6;
  padding: 0.8em 2.5em;
  color: var(--clr-heading);
  border-color: var(--clr-heading);
}
.works-shop-btn:hover {
  background: var(--clr-accent-lt);
  border-color: var(--clr-heading);
}
.works-shop-sub {
  display: block;
  font-size: 0.8em;
  opacity: 0.75;
  letter-spacing: 0.04em;
}
.works-shop-note {
  margin-top: 0.75rem;
  font-size: 0.78rem;
  color: var(--clr-text-sub);
  letter-spacing: 0.04em;
  line-height: 1.7;
}


/* ============================================================
   IMAGE MODAL
   ============================================================ */
.img-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 500;
  background: rgba(0, 0, 0, 0.82);
  align-items: center;
  justify-content: center;
  overflow-y: auto;
  padding: 3rem 1rem 2rem;
  cursor: zoom-out;
}
.img-modal.open { display: flex; }

.img-modal-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: default;
  max-width: 90vw;
}
.img-modal-img {
  max-width: 88vw;
  max-height: 75vh;
  object-fit: contain;
  display: block;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.6);
}
.img-modal-caption {
  width: 100%;
  padding: 0.85rem 0.25rem 0;
  color: #fff;
  text-align: left;
}
.img-modal-caption-title {
  font-family: var(--font-ja-heading);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  margin-bottom: 0.25rem;
}
.img-modal-caption-meta {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.65);
}
.img-modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: #fff;
  font-size: 2.2rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.2rem 0.5rem;
  opacity: 0.65;
  transition: opacity 0.2s;
}
.img-modal-close:hover { opacity: 1; }
.js-modal-trigger { cursor: zoom-in; }


/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: #ede3dd;
  color: rgba(44,36,32,0.7);
  padding-block: clamp(2.5rem, 5vw, 4rem);
}
.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding-bottom: 1.75rem;
  margin-bottom: 1.75rem;
  border-bottom: 1px solid rgba(44,36,32,0.15);
}
.footer-logo .logo-ja { color: var(--clr-heading); }
.footer-logo .logo-en { color: rgba(44,36,32,0.55); }

.footer-nav { display: flex; flex-wrap: wrap; gap: 1.5rem; }
.footer-nav a {
  font-family: var(--font-en);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: capitalize;
  color: rgba(44,36,32,0.65);
  transition: color var(--dur) var(--ease);
}
.footer-nav a:hover { color: var(--clr-heading); }
.footer-copy {
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: rgba(44,36,32,0.5);
}
.footer-copy--notice {
  margin-top: 0.25rem;
}


/* ============================================================
   FADE-IN (Intersection Observer)
   ============================================================ */
.js-fade {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}
.js-fade.in-view { opacity: 1; transform: translateY(0); }


/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 860px) {
  :root { --border-w: 6px; }

  .about-message { grid-template-columns: 1fr; }
  .about-portrait { max-width: 160px; margin-inline: auto; }

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

@media (max-width: 640px) {
  :root { --border-w: 0px; }

  /* モバイル：ヘッダーは固定しない。ロゴはスクロールで流れる */
  .site-header {
    position: static;
    height: auto;
    padding: 1rem 1.25rem 0.85rem;
    background: var(--clr-bg);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: none !important;
    border-bottom: 1px solid var(--clr-line);
  }
  /* ヒーローはヘッダー分の上余白不要・min-heightも解除 */
  .hero { padding-top: 0; min-height: 0; }

  /* ハンバーガーのみ固定 */
  .nav-toggle {
    display: flex;
    position: fixed;
    top: 0.9rem;
    right: 1.25rem;
    z-index: 200;
    background: rgba(253,250,248,0.9);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 6px;
    padding: 6px;
  }

  /* ナビドロップダウンはビューポート固定（ハンバーガー直下から） */
  .site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--clr-bg);
    border-bottom: 1px solid var(--clr-line);
    padding: 3.5rem 1.25rem 1.25rem;
    transform: translateY(-120%);
    opacity: 0;
    transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
    pointer-events: none;
    z-index: 190;
  }
  .site-nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .site-nav ul   { flex-direction: column; gap: 0; }
  .site-nav li   { border-bottom: 1px solid var(--clr-line); }
  .nav-link      { display: block; padding-block: 0.9rem; font-size: 0.9rem; }
  .nav-link::after { display: none; }

  .works-grid--medium { grid-template-columns: repeat(2, 1fr); }
  .works-grid--small  { grid-template-columns: repeat(3, 1fr); }

  .about-list li { grid-template-columns: 5.5em 1fr; }
  .about-list--no-year li { grid-template-columns: 1fr; }

  .footer-top { flex-direction: column; align-items: flex-start; }

  /* ヒーロー：アーチ小さく */
  .hero-visual { border-radius: 50% 50% 0 0 / 8% 8% 0 0; }

  /* top画像→Works間の余白 */
  #works.section { padding-top: clamp(2rem, 5vw, 3rem); }
}

@media (max-width: 400px) {
  .works-grid--small { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- prefers-reduced-motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  html { scroll-behavior: auto; }
  /* フェードインを即時表示 */
  .js-fade { opacity: 1 !important; transform: none !important; }
}