/* ==========================================================
   ねこ探偵事務所 しっぽリサーチ
   - 色・フォント・余白は :root の変数で一元管理
   - 並び順：変数 → リセット → 共通部品 → 各セクション → レスポンシブ補助
   ========================================================== */

/* ----------------------------------------------------------
   1. デザイン変数（色を変えたいときはここだけ触ればOK）
   ---------------------------------------------------------- */
:root {
  /* 配色 */
  --color-ivory:      #F5F0E4;  /* 背景のベース */
  --color-ivory-dark: #EAE2CE;  /* 背景の濃いめ・図版用 */
  --color-paper:      #FBF7EC;  /* カードの紙色 */
  --color-navy:       #22304A;  /* 文字・締め色 */
  --color-navy-deep:  #19233A;  /* さらに濃いネイビー */
  --color-brown:      #8A6A4F;  /* 罫線・サブ */
  --color-brown-deep: #6E5238;  /* ブラウンの影 */
  --color-brown-pale: #C9B697;  /* 薄い飾り */
  --color-mustard:    #D9A33C;  /* CTA・アクセント */
  --color-green:      #7E8B6C;  /* スタンプ・サブアクセント */
  --color-ink:        #1C1A17;  /* ほぼ黒 */

  /* フォント（OS標準のみ。Webフォントに替えるときはここを変更） */
  --font-serif: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "BIZ UDMincho", serif;
  --font-sans:  "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;

  /* 余白・幅 */
  --space-section: clamp(4.5rem, 10vw, 7.5rem);  /* セクション間の余白 */
  --width-content: 1080px;
  --header-height: 72px;
}

/* ----------------------------------------------------------
   2. リセットとベース
   ---------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  /* 固定ヘッダーの分だけアンカー位置をずらす */
  scroll-padding-top: calc(var(--header-height) + 12px);
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: 0.04em;
  color: var(--color-navy);
  background-color: var(--color-ivory);
  /* 紙の質感：SVGノイズをうっすら重ねる（画像ファイル不要） */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden; /* 装飾による横スクロールを防止 */
}

img, svg { max-width: 100%; height: auto; vertical-align: middle; }

ul, ol { list-style: none; }

a { color: inherit; }

em { font-style: normal; font-weight: 700; color: var(--color-brown-deep); }

/* キーボード操作時のフォーカスを見やすく */
:focus-visible {
  outline: 3px solid var(--color-mustard);
  outline-offset: 3px;
  border-radius: 2px;
}

/* スキップリンク（フォーカス時だけ画面内に出る） */
.skip-link {
  position: absolute;
  top: -100px;
  left: 8px;
  z-index: 200;
  padding: 0.5em 1em;
  background: var(--color-navy);
  color: var(--color-ivory);
  text-decoration: none;
}
.skip-link:focus { top: 8px; }

/* PC幅でだけ効かせる改行 */
.pc-only { display: none; }

/* ----------------------------------------------------------
   3. 共通部品（コンテナ・見出し・ボタン・スタンプ・出現アニメ）
   ---------------------------------------------------------- */
.inner {
  max-width: var(--width-content);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 40px);
}

.inner--narrow { max-width: 720px; }

.section { padding-block: var(--space-section); }

/* セクション見出し：英字ラベル＋罫線で「書類の見出し」風に */
.section-head {
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
  text-align: center;
}

.section-head__en {
  display: inline-block;
  margin-bottom: 0.6em;
  padding: 0.1em 1em;
  border: 1px solid var(--color-brown);
  border-radius: 999px;
  color: var(--color-brown);
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-indent: 0.28em; /* letter-spacing分のズレを中央に戻す */
}

.section-head__title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 4.5vw, 2.3rem);
  font-weight: 700;
  letter-spacing: 0.12em;
}

.section-head__lead {
  margin-top: 1em;
  font-size: 0.95rem;
  color: var(--color-brown-deep);
}

/* 暗い背景のセクション用 */
.section-head--light .section-head__title { color: var(--color-ivory); }
.section-head--light .section-head__en   { color: var(--color-brown-pale); border-color: var(--color-brown-pale); }
.section-head--light .section-head__lead { color: var(--color-brown-pale); }

/* ボタン */
.btn {
  display: inline-block;
  padding: 0.9em 2.4em;
  border: 2px solid var(--color-navy);
  border-radius: 999px;
  background: var(--color-mustard);
  box-shadow: 4px 4px 0 var(--color-navy); /* レトロ印刷風の影 */
  color: var(--color-navy);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  cursor: pointer;
  transition: translate 0.2s ease, box-shadow 0.2s ease;
}

/* ホバーで「押せそう」に少し浮く。押した瞬間は沈む */
.btn:hover  { translate: -2px -2px; box-shadow: 6px 6px 0 var(--color-navy); }
.btn:active { translate: 2px 2px;   box-shadow: 1px 1px 0 var(--color-navy); }

.btn--ghost  { background: transparent; }
.btn--small  { padding: 0.5em 1.4em; font-size: 0.85rem; box-shadow: 3px 3px 0 var(--color-navy); }
.btn--submit { display: block; width: 100%; }

/* 「解決」「受理」スタンプ：少し傾けてインク風に */
.stamp {
  display: inline-grid;
  place-items: center;
  width: 4.2em;
  height: 4.2em;
  border: 3px double var(--color-green);
  border-radius: 50%;
  rotate: -12deg;
  color: var(--color-green);
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-indent: 0.15em;
  opacity: 0.9;
}

.stamp--accept { font-size: 0.8rem; }

/* スクロールでふわっと出る（JSが .is-visible を付ける） */
.reveal {
  opacity: 0;
  translate: 0 26px;
  transition: opacity 0.7s ease, translate 0.7s ease;
}

.reveal.is-visible { opacity: 1; translate: 0 0; }

/* ----------------------------------------------------------
   4. ヘッダー
   ---------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: color-mix(in srgb, var(--color-ivory) 92%, transparent);
  backdrop-filter: blur(6px);
  border-bottom: 2px solid var(--color-navy);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 32px);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.site-logo__mark { width: 38px; height: 38px; color: var(--color-navy); flex-shrink: 0; }

.site-logo__text { line-height: 1.3; }
.site-logo__sub  { display: block; font-size: 0.65rem; letter-spacing: 0.2em; color: var(--color-brown-deep); }
.site-logo__main { display: block; font-family: var(--font-serif); font-size: 1.15rem; font-weight: 700; letter-spacing: 0.1em; }

/* ナビ（PC：横並び） */
.global-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 26px);
  font-size: 0.9rem;
}

.global-nav__list a:not(.btn) {
  text-decoration: none;
  padding-block: 0.4em;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease;
}

.global-nav__list a:not(.btn):hover { border-bottom-color: var(--color-mustard); }

/* ナビ開閉ボタン（スマホのみ表示） */
.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 10px;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--color-navy);
}

/* 三本線（疑似要素で上下の線を作る） */
.nav-toggle__bar {
  position: relative;
  display: block;
  width: 24px;
  height: 2px;
  background: currentColor;
  transition: background 0.2s ease;
}
.nav-toggle__bar::before,
.nav-toggle__bar::after {
  content: "";
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background: currentColor;
  transition: rotate 0.25s ease, translate 0.25s ease;
}
.nav-toggle__bar::before { translate: 0 -7px; }
.nav-toggle__bar::after  { translate: 0 7px; }

/* 開いている間は×印に */
.nav-toggle[aria-expanded="true"] .nav-toggle__bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::before { translate: 0 0; rotate: 45deg; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::after  { translate: 0 0; rotate: -45deg; }

.nav-toggle__label { font-size: 0.6rem; letter-spacing: 0.1em; }

/* ----------------------------------------------------------
   5. ファーストビュー
   ---------------------------------------------------------- */
.hero {
  position: relative;
  padding-block: clamp(3rem, 8vw, 6rem) clamp(5rem, 9vw, 7rem);
  border-bottom: 2px solid var(--color-navy);
  overflow: hidden;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: clamp(24px, 5vw, 60px);
  max-width: var(--width-content);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 40px);
}

.hero__badge {
  display: inline-block;
  margin-bottom: 1.2em;
  padding: 0.3em 1.2em;
  border: 1.5px dashed var(--color-brown);
  border-radius: 4px;
  rotate: -2deg;
  color: var(--color-brown-deep);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
}

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 6vw, 3.4rem);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.1em;
}

.hero__lead {
  margin-top: 1.4em;
  font-size: clamp(0.92rem, 1.6vw, 1rem);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 2em;
}

/* 実績の小ネタ：書類のはんこ欄風 */
.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: 2.4em;
  padding-top: 1.2em;
  border-top: 1px solid var(--color-brown-pale);
}

.hero__stat dt {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--color-brown-deep);
}

.hero__stat dd {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
}

.hero__visual { text-align: center; }

/* メインビジュアル：少し傾けた「現場写真」風フレーム */
.hero__photo {
  display: inline-block;
  padding: 10px 10px 8px;
  background: var(--color-paper);
  border: 1px solid var(--color-brown-pale);
  box-shadow: 4px 6px 0 rgba(34, 48, 74, 0.18);
  rotate: 1.5deg;
}

/* 上に貼ったマスキングテープ */
.hero__photo {
  position: relative;
}
.hero__photo::before {
  content: "";
  position: absolute;
  top: -12px;
  left: 50%;
  translate: -50% 0;
  width: 92px;
  height: 22px;
  rotate: -3deg;
  background: color-mix(in srgb, var(--color-mustard) 70%, transparent);
  opacity: 0.75;
}

.hero__photo img {
  display: block;
  width: 100%;
  border: 1px solid var(--color-ivory-dark);
}

.hero__photo-caption {
  margin-top: 0.5em;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--color-brown-deep);
  text-align: left;
}

/* スクロール誘導（線がすーっと伸びる控えめな動き） */
.hero__scroll {
  position: absolute;
  right: clamp(16px, 4vw, 40px);
  bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.hero__scroll-text {
  font-size: 0.68rem;
  letter-spacing: 0.25em;
  writing-mode: vertical-rl;
  color: var(--color-brown-deep);
}

.hero__scroll-arrow {
  width: 1px;
  height: 48px;
  background: var(--color-brown-deep);
  overflow: hidden;
  position: relative;
}
.hero__scroll-arrow::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--color-mustard);
  animation: scroll-line 2.2s ease-in-out infinite;
}

@keyframes scroll-line {
  0%   { translate: 0 -100%; }
  55%  { translate: 0 0; }
  100% { translate: 0 100%; }
}

/* ----------------------------------------------------------
   6. こんな事件ありませんか？（メモ用紙風カード）
   ---------------------------------------------------------- */
.memo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 3vw, 28px);
}

.memo {
  position: relative;
  padding: 2.2em 1.5em 1.5em;
  background: var(--color-paper);
  border: 1px solid var(--color-brown-pale);
  box-shadow: 2px 3px 0 rgba(34, 48, 74, 0.12);
  transition: rotate 0.25s ease, box-shadow 0.25s ease, translate 0.25s ease;
}

/* メモがちょっとずつ傾いて貼ってある感じ */
.memo:nth-child(odd)  { rotate: -1deg; }
.memo:nth-child(even) { rotate: 1.2deg; }

/* 上に貼ったマスキングテープ */
.memo::before {
  content: "";
  position: absolute;
  top: -10px;
  left: 50%;
  translate: -50% 0;
  width: 84px;
  height: 20px;
  rotate: -3deg;
  background: color-mix(in srgb, var(--color-mustard) 70%, transparent);
  opacity: 0.75;
}

/* ホバーでまっすぐになって浮く */
.memo:hover {
  rotate: 0deg;
  translate: 0 -4px;
  box-shadow: 4px 8px 0 rgba(34, 48, 74, 0.16);
}

.memo__no {
  margin-bottom: 0.5em;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--color-brown);
  border-bottom: 1px dashed var(--color-brown-pale);
  padding-bottom: 0.4em;
}

.memo__text { font-size: 0.95rem; }
.memo__text strong { color: var(--color-navy-deep); }

.trouble__note {
  margin-top: 3em;
  text-align: center;
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  letter-spacing: 0.15em;
}

/* ----------------------------------------------------------
   7. 調査内容
   ---------------------------------------------------------- */
.service { background: var(--color-ivory-dark); }

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(14px, 2.5vw, 24px);
}

.service-card {
  display: flex;
  flex-direction: column;
  padding: 2em 1.4em;
  background: var(--color-paper);
  border: 2px solid var(--color-navy);
  border-radius: 10px;
  box-shadow: 4px 4px 0 var(--color-navy);
  transition: translate 0.25s ease, box-shadow 0.25s ease;
}

.service-card:hover { translate: -2px -4px; box-shadow: 7px 9px 0 var(--color-navy); }

.service-card__icon {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  margin-bottom: 1em;
  border: 1.5px solid var(--color-brown);
  border-radius: 50%;
  color: var(--color-navy);
  background: var(--color-ivory);
}

.service-card__icon svg { width: 34px; height: 34px; }

.service-card__title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  margin-bottom: 0.6em;
}

.service-card__text { font-size: 0.88rem; flex-grow: 1; }

/* 料金は値札タグ風 */
.service-card__price {
  margin-top: 1.4em;
  align-self: flex-start;
  padding: 0.2em 1em;
  background: var(--color-navy);
  color: var(--color-mustard);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  border-radius: 3px 999px 999px 3px; /* 片側だけ丸めて荷札っぽく */
}

/* ----------------------------------------------------------
   8. ねこ探偵紹介
   ---------------------------------------------------------- */
.detective-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(18px, 3vw, 30px);
}

.detective-card {
  padding: 2.2em 1.6em;
  background: var(--color-paper);
  border: 1px solid var(--color-brown-pale);
  border-radius: 8px;
  box-shadow: 2px 4px 0 rgba(34, 48, 74, 0.12);
  text-align: center;
  transition: translate 0.25s ease, box-shadow 0.25s ease;
}

.detective-card:hover { translate: 0 -5px; box-shadow: 4px 10px 0 rgba(34, 48, 74, 0.16); }

/* 肖像は古い写真館の額縁風 */
.detective-card__portrait {
  width: min(180px, 60%);
  margin-inline: auto;
  margin-bottom: 1.2em;
  border: 4px double var(--color-brown);
  border-radius: 50%;
  overflow: hidden;
  background: var(--color-paper);
}

/* 生成画像を丸い額縁いっぱいに収める */
.detective-card__portrait img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.detective-card__role {
  display: inline-block;
  padding: 0.1em 1.2em;
  margin-bottom: 0.6em;
  background: var(--color-green);
  color: var(--color-ivory);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  border-radius: 999px;
}

.detective-card__name {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  letter-spacing: 0.06em;
}

.detective-card__age { font-size: 0.75rem; font-weight: 400; color: var(--color-brown-deep); }

.detective-card__bio {
  margin-top: 0.8em;
  font-size: 0.88rem;
  text-align: left;
}

/* プロフィールデータは調査資料風の表組み */
.detective-card__data {
  margin-top: 1.2em;
  border-top: 1px dashed var(--color-brown-pale);
  font-size: 0.82rem;
  text-align: left;
}

.detective-card__data > div {
  display: flex;
  gap: 1em;
  padding-block: 0.5em;
  border-bottom: 1px dashed var(--color-brown-pale);
}

.detective-card__data dt {
  flex-shrink: 0;
  width: 5em;
  color: var(--color-brown-deep);
  font-weight: 700;
}

/* ----------------------------------------------------------
   9. 事件ファイル（暗いネイビー背景で「資料室」の雰囲気に）
   ---------------------------------------------------------- */
.case-file {
  background: var(--color-navy-deep);
  color: var(--color-navy);
}

.file-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(18px, 3vw, 30px);
}

/* クラフト紙のファイルフォルダ風カード */
.file-card {
  position: relative;
  margin-top: 18px; /* タブの分の余白 */
  padding: 2.4em 1.6em 1.8em;
  background: var(--color-brown-pale);
  border-radius: 0 8px 8px 8px;
  box-shadow: 3px 5px 0 rgba(0, 0, 0, 0.3);
  transition: translate 0.25s ease, box-shadow 0.25s ease;
}

.file-card:hover { translate: 0 -5px; box-shadow: 5px 10px 0 rgba(0, 0, 0, 0.35); }

/* フォルダの見出しタブ */
.file-card::before {
  content: "";
  position: absolute;
  top: -16px;
  left: 0;
  width: 38%;
  height: 18px;
  background: var(--color-brown-pale);
  border-radius: 8px 8px 0 0;
}

.file-card__no {
  display: inline-block;
  margin-bottom: 0.8em;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--color-brown-deep);
  border: 1px solid var(--color-brown-deep);
  padding: 0.05em 0.8em;
}

/* 解決スタンプはファイルの右上に押す */
.file-card .stamp {
  position: absolute;
  top: 12px;
  right: 14px;
}

.file-card__title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  letter-spacing: 0.06em;
  color: var(--color-ink);
  margin-bottom: 0.8em;
}

.file-card__body { font-size: 0.86rem; color: var(--color-ink); }

.file-card__body dt {
  margin-top: 1em;
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  color: var(--color-navy-deep);
}

.file-card__body dt::before { content: "■ "; color: var(--color-green); }

/* ----------------------------------------------------------
   10. 調査の流れ
   ---------------------------------------------------------- */
.flow-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(14px, 2.5vw, 24px);
  counter-reset: flow;
}

.flow-step {
  position: relative;
  padding: 1.8em 1.4em;
  background: var(--color-paper);
  border: 1px solid var(--color-brown-pale);
  border-radius: 8px;
}

/* ステップ間をつなぐ足あと（PCは右向き） */
.flow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: calc(-1 * clamp(14px, 2.5vw, 24px) / 2 - 9px);
  translate: 0 -50%;
  width: 18px;
  height: 18px;
  background-color: var(--color-brown);
  /* 肉球マークをマスクで描く（画像ファイル不要） */
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cellipse cx='12' cy='15' rx='5.5' ry='4.5'/%3E%3Ccircle cx='5.5' cy='9' r='2.4'/%3E%3Ccircle cx='12' cy='7' r='2.4'/%3E%3Ccircle cx='18.5' cy='9' r='2.4'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cellipse cx='12' cy='15' rx='5.5' ry='4.5'/%3E%3Ccircle cx='5.5' cy='9' r='2.4'/%3E%3Ccircle cx='12' cy='7' r='2.4'/%3E%3Ccircle cx='18.5' cy='9' r='2.4'/%3E%3C/svg%3E") center / contain no-repeat;
  rotate: 90deg;
  z-index: 1;
}

.flow-step__no {
  display: flex;
  align-items: center;
  gap: 0.5em;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--color-brown-deep);
}

/* STEP番号の前の小さな肉球 */
.flow-step__paw {
  width: 16px;
  height: 16px;
  background-color: var(--color-mustard);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cellipse cx='12' cy='15' rx='5.5' ry='4.5'/%3E%3Ccircle cx='5.5' cy='9' r='2.4'/%3E%3Ccircle cx='12' cy='7' r='2.4'/%3E%3Ccircle cx='18.5' cy='9' r='2.4'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cellipse cx='12' cy='15' rx='5.5' ry='4.5'/%3E%3Ccircle cx='5.5' cy='9' r='2.4'/%3E%3Ccircle cx='12' cy='7' r='2.4'/%3E%3Ccircle cx='18.5' cy='9' r='2.4'/%3E%3C/svg%3E") center / contain no-repeat;
}

.flow-step__title {
  margin-top: 0.6em;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.06em;
}

.flow-step__text { margin-top: 0.6em; font-size: 0.85rem; }

/* ----------------------------------------------------------
   11. お問い合わせCTA（依頼書風フォーム）
   ---------------------------------------------------------- */
.contact { background: var(--color-ivory-dark); }

.request-form {
  padding: clamp(1.8em, 5vw, 3em);
  background: var(--color-paper);
  border: 2px solid var(--color-navy);
  box-shadow: 6px 6px 0 var(--color-navy);
}

.request-form__heading {
  margin-bottom: 1.6em;
  text-align: center;
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.5em;
  text-indent: 0.5em;
  border-bottom: 2px solid var(--color-navy);
  padding-bottom: 0.6em;
}

.request-form__field { margin-bottom: 1.4em; }

.request-form__field label {
  display: block;
  margin-bottom: 0.4em;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.request-form__field input,
.request-form__field select,
.request-form__field textarea {
  width: 100%;
  padding: 0.8em 1em;
  border: 1.5px solid var(--color-brown);
  border-radius: 4px;
  background: var(--color-ivory);
  font: inherit;
  color: var(--color-navy);
}

.request-form__field textarea { resize: vertical; }

.request-form__field input:focus-visible,
.request-form__field select:focus-visible,
.request-form__field textarea:focus-visible {
  outline: 3px solid var(--color-mustard);
  outline-offset: 1px;
}

.request-form__note {
  margin-bottom: 1.4em;
  font-size: 0.78rem;
  color: var(--color-brown-deep);
}

/* 送信後の受理メッセージ */
.request-form__done {
  display: flex;
  align-items: center;
  gap: 1em;
  margin-top: 1.6em;
  padding: 1em 1.2em;
  border: 1.5px dashed var(--color-green);
  border-radius: 6px;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-navy);
}

.request-form__done .stamp { flex-shrink: 0; animation: stamp-in 0.4s ease-out; }

/* スタンプがポンッと押される動き */
@keyframes stamp-in {
  0%   { scale: 1.8; opacity: 0; }
  60%  { scale: 0.95; opacity: 1; }
  100% { scale: 1; }
}

/* ----------------------------------------------------------
   12. フッター
   ---------------------------------------------------------- */
.site-footer {
  background: var(--color-navy-deep);
  color: var(--color-ivory);
  padding-block: 3.5rem 2rem;
}

.site-footer__logo { margin-bottom: 1.6em; line-height: 1.4; }
.site-footer__logo-sub  { display: block; font-size: 0.7rem; letter-spacing: 0.25em; color: var(--color-brown-pale); }
.site-footer__logo-main { display: block; font-family: var(--font-serif); font-size: 1.4rem; letter-spacing: 0.15em; }

.site-footer__info { font-size: 0.85rem; }

.site-footer__info > div {
  display: flex;
  flex-wrap: wrap;
  gap: 0 1.5em;
  padding-block: 0.4em;
  border-bottom: 1px solid color-mix(in srgb, var(--color-ivory) 15%, transparent);
}

.site-footer__info dt { width: 6em; color: var(--color-brown-pale); }

.site-footer__note {
  margin-top: 2em;
  font-size: 0.75rem;
  color: var(--color-brown-pale);
}

.site-footer__copy { margin-top: 1.5em; font-size: 0.75rem; color: var(--color-brown-pale); }

/* ----------------------------------------------------------
   13. レスポンシブ（タブレット〜スマホ）
   ---------------------------------------------------------- */
@media (min-width: 901px) {
  .pc-only { display: inline; }
}

@media (max-width: 900px) {
  /* ナビをドロワー化 */
  .nav-toggle { display: flex; }

  .global-nav {
    position: fixed;
    top: var(--header-height);
    right: 0;
    width: min(78vw, 320px);
    height: calc(100dvh - var(--header-height));
    background: var(--color-paper);
    border-left: 2px solid var(--color-navy);
    translate: 100% 0;
    /* 閉じている間は visibility も切り、横スクロールの原因にならないようにする */
    visibility: hidden;
    transition: translate 0.3s ease, visibility 0s 0.3s;
  }

  .global-nav.is-open {
    translate: 0 0;
    visibility: visible;
    transition: translate 0.3s ease;
  }

  .global-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1.5em;
  }

  .global-nav__list li { border-bottom: 1px dashed var(--color-brown-pale); }
  .global-nav__list a:not(.btn) { display: block; padding: 1em 0.5em; }
  .global-nav__cta { border-bottom: none !important; padding-top: 1.5em; text-align: center; }

  /* ヒーローは縦積みに */
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { order: -1; }           /* スマホでは写真を先に見せる */
  .hero__photo { rotate: 1deg; margin-top: 8px; }
  .hero__actions .btn { width: 100%; text-align: center; }
  .hero__scroll { display: none; }       /* スマホでは省略してすっきりと */

  /* グリッドの段数を調整 */
  .memo-grid      { grid-template-columns: repeat(2, 1fr); }
  .service-grid   { grid-template-columns: repeat(2, 1fr); }
  .detective-grid { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; }
  .file-grid      { grid-template-columns: 1fr; max-width: 520px; margin-inline: auto; }
  .flow-list      { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; }

  /* 足あとは下向きに（縦並びのステップをつなぐ） */
  .flow-step:not(:last-child)::after {
    top: auto;
    right: auto;
    bottom: calc(-1 * clamp(14px, 2.5vw, 24px) / 2 - 9px);
    left: 50%;
    translate: -50% 0;
    rotate: 180deg;
  }
}

@media (max-width: 540px) {
  body { font-size: 15px; }

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

  /* スマホではメモの傾きを弱めて読みやすく */
  .memo:nth-child(odd)  { rotate: -0.6deg; }
  .memo:nth-child(even) { rotate: 0.6deg; }

  .hero__stats { gap: 8px 18px; }
}

/* ----------------------------------------------------------
   14. アクセシビリティ：動きを減らす設定の人にはアニメを止める
   ---------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .reveal {
    opacity: 1;
    translate: 0 0;
    transition: none;
  }

  .hero__scroll-arrow::after,
  .request-form__done .stamp { animation: none; }

  .btn, .memo, .service-card, .detective-card, .file-card, .global-nav { transition: none; }
}