/* ==========================================================================
   monolith.css — 1a MONOLITH テーマ
   漆黒 × オフホワイト。特大 Futura 見出し。フラット・罫線ベース。
   基準デザイン幅 1200px。<=1024 / 768 / 480 でレスポンシブ。
   ========================================================================== */

:root {
  --bg: #050505;
  --fg: #eceae4;
  --fg-85: rgba(236, 234, 228, 0.85);
  --fg-80: rgba(236, 234, 228, 0.8);
  --fg-55: rgba(236, 234, 228, 0.55);
  --fg-50: rgba(236, 234, 228, 0.5);
  --fg-45: rgba(236, 234, 228, 0.45);
  --fg-40: rgba(236, 234, 228, 0.4);

  --accent: #cf795e; /* テラコッタ（サイト内イラストのアクセント色から採取）*/

  --rule: rgba(236, 234, 228, 0.14);
  --rule-16: rgba(236, 234, 228, 0.16);
  --rule-12: rgba(236, 234, 228, 0.12);
  --rule-10: rgba(236, 234, 228, 0.1);
  --input-line: rgba(236, 234, 228, 0.35);

  --serif: "Noto Sans JP", sans-serif; /* 本文 */
  --display: Futura, "Jost", sans-serif; /* 欧文見出し */
  --mono: ui-monospace, Menlo, monospace; /* キャプション */

  --pad-x: 48px; /* 左右パディング */
  --header-h: 97px; /* sticky ヘッダーの高さ（SERVICE ピン留めの基準） */
}

body.monolith {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--serif);
  font-weight: 400;
}

/* --------------------------------------------------------- header */
.mono-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 26px var(--pad-x);
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

.mono-brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mono-brand__ja {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.22em;
}

.mono-brand__en {
  font-family: var(--display);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--fg-55);
}

.mono-nav {
  display: flex;
  align-items: center;
  gap: 34px;
  font-family: var(--display);
  font-size: 15px;
  letter-spacing: 0.2em;
}

.mono-nav__cta {
  border: 1px solid rgba(236, 234, 228, 0.5);
  padding: 8px 18px;
}

/* --------------------------------------------------------- hero */
.mono-hero {
  padding: 84px var(--pad-x) 200px;
  border-bottom: 1px solid var(--rule);
  position: relative;
  /* 背景: 山のラインアート（黒地）。右に山、左テキストは下の ::before スクリムで可読性確保 */
  background-color: var(--bg);
  background-image: url("../img/architects-hero-landscape-08.jpeg");
  background-repeat: no-repeat;
  background-position: right bottom;
  background-size: cover;
}

/* 左のテキストを常に読みやすく: 左から右へ黒→透明のグラデを重ねる */
.mono-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      100deg,
      var(--bg) 33%,
      rgba(5, 5, 5, 0.5) 55%,
      rgba(5, 5, 5, 0) 82%
    ),
    linear-gradient(
      to top,
      rgba(5, 5, 5, 0.8) 0%,
      rgba(5, 5, 5, 0) 24%
    );
  pointer-events: none;
}

.mono-hero > * {
  position: relative;
  z-index: 1;
}

.mono-hero__title {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(58px, 10.8vw, 138px);
  line-height: 0.96;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  margin: 0;
}

.mono-hero__lead {
  margin-top: 24px;
  font-size: 32px;
  line-height: 2.0;
  letter-spacing: 0.12em;
  color: var(--fg-85);
}

/* 後半3行：主文より小さい補足テキスト（主文サイズに関係なく固定）＋前に空白1行分の余白 */
.mono-hero__lead-sub {
  display: block;
  margin-top: 2.1em; /* ≒ 補足1行分ぶんの空き */
  font-size: 22px;
  line-height: 2.2;
}

.mono-hero__meta {
  position: absolute;
  right: var(--pad-x);
  bottom: 90px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--fg-45);
  text-align: right;
}

/* --------------------------------------------------------- section shared */
.mono-section {
  padding: 78px var(--pad-x);
  border-bottom: 1px solid var(--rule);
}

.mono-section__head {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin-bottom: 44px;
}

.mono-section__title {
  font-family: var(--display);
  font-weight: 500;
  font-size: 40px;
  letter-spacing: 0.06em;
}

.mono-section__sub {
  font-size: 14.5px;
  letter-spacing: 0.3em;
  color: var(--fg-55);
}

/* --------------------------------------------------------- recruit（トップの導線。幅制限なし＝デスクトップでは各文1行、狭い画面は自然折り返し）*/

/* 下の仕切り線（セクション下境界）を下げる＝下パディングを拡大 */
.mono-recruit {
  padding-bottom: 120px;
}

/* 見出しは左のまま。本文（大見出し・説明・ボタン）だけ中央寄せ */
/* 見出しと本文の間隔を広げ、本文ブロックをやや下げる */
.mono-recruit .mono-section__head {
  margin-bottom: 92px;
}

.mono-recruit__body {
  width: fit-content;
  max-width: 100%;
  margin-inline: auto;
  text-align: left;
}

.mono-recruit__lead {
  margin: 0;
  font-size: clamp(30px, 4.2vw, 54px);
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: 0.03em;
}

.mono-recruit__text {
  margin: 30px 0 0;
  font-size: 20px;
  line-height: 2;
  letter-spacing: 0.04em;
  color: var(--fg-80);
}

.mono-recruit__btn {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  margin-top: 46px;
  padding: 19px 42px;
  border: 1px solid var(--fg-45);
  font-family: var(--display);
  font-size: 16px;
  letter-spacing: 0.16em;
  color: var(--fg);
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.mono-recruit__btn:hover {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}

.mono-recruit__arrow {
  transition: transform 0.3s ease;
}

.mono-recruit__btn:hover .mono-recruit__arrow {
  transform: translateX(4px);
}

/* --------------------------------------------------------- recruit page（下層 /recruit/）*/
.mono-recruit-hero {
  padding: 72px var(--pad-x) 90px;
  border-bottom: 1px solid var(--rule);
}

.mono-recruit-hero__eyebrow {
  margin: 0;
  font-family: var(--display);
  font-size: 14px;
  letter-spacing: 0.24em;
  color: var(--fg-55);
}

.mono-recruit-hero__title {
  margin: 30px 0 0;
  font-size: clamp(34px, 5.4vw, 72px);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.02em;
}
/* 採用トップの見出しは一文なので、職種名見出しより控えめに */
.mono-recruit-hero__title--sentence {
  font-size: clamp(30px, 4.4vw, 56px);
  line-height: 1.5;
}

.mono-recruit-hero__lead {
  margin: 34px 0 0;
  font-size: clamp(17px, 1.7vw, 21px);
  line-height: 2.1;
  letter-spacing: 0.04em;
  color: var(--fg-80);
}

.mono-roles__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.mono-role-card {
  display: flex;
  flex-direction: column;
  min-height: 340px;
  padding: 44px 48px 40px;
  border: 1px solid var(--rule);
  color: var(--fg);
  transition: background-color 0.35s ease, border-color 0.35s ease, transform 0.35s ease;
}

.mono-role-card:hover {
  background: rgba(236, 234, 228, 0.04);
  border-color: var(--fg-45);
  transform: translateY(-4px);
}

.mono-role-card__no {
  font-family: var(--display);
  font-weight: 600;
  font-size: 40px;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--fg-45);
}

.mono-role-card__name {
  margin-top: auto;
  padding-top: 40px;
  font-size: clamp(28px, 2.9vw, 38px);
  font-weight: 500;
  letter-spacing: 0.05em;
}

.mono-role-card__en {
  margin-top: 10px;
  font-family: var(--display);
  font-size: 13px;
  letter-spacing: 0.22em;
  color: var(--fg-55);
}

.mono-role-card__more {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 28px;
  font-family: var(--display);
  font-size: 14px;
  letter-spacing: 0.16em;
  color: var(--fg);
}

.mono-role-card__arrow {
  transition: transform 0.3s ease;
}

.mono-role-card:hover .mono-role-card__arrow {
  transform: translateX(5px);
}

/* 職種ページ: 戻りリンク・本文 */
.mono-recruit-back {
  color: var(--fg-55);
  transition: color 0.2s ease;
}

.mono-recruit-back:hover {
  color: var(--fg);
}

.mono-role-prep {
  margin: 0;
  font-size: 16px;
  line-height: 2;
  letter-spacing: 0.04em;
  color: var(--fg-80);
}

/* 職種ページ本文（PDF採用案内ベース）*/
.mono-recruit-prose {
  max-width: 46em;
  font-size: 18px;
  line-height: 2.1;
  letter-spacing: 0.04em;
  color: var(--fg-85);
}

.mono-recruit-prose p {
  margin: 0 0 1.5em;
}

.mono-recruit-prose p:last-child {
  margin-bottom: 0;
}

.mono-recruit-subhead {
  margin: 56px 0 30px;
  font-size: 24px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.mono-recruit-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* 本文のすぐ下にカードが来る場合（採用トップ CAREER）は1行分あける */
.mono-recruit-prose + .mono-recruit-cards {
  margin-top: 40px;
}

.mono-recruit-card {
  padding: 34px 30px 36px;
  border: 1px solid var(--rule);
  background: rgba(236, 234, 228, 0.02);
}

.mono-recruit-card--em {
  border-color: var(--accent);
}

.mono-recruit-card__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  font-family: var(--display);
  font-size: 16px;
  color: var(--accent);
}

.mono-recruit-card__title {
  margin: 24px 0 14px;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.5;
}

.mono-recruit-card__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.95;
  letter-spacing: 0.03em;
  color: var(--fg-55);
}

.mono-recruit-card__text b {
  color: var(--fg-85);
  font-weight: 500;
}

/* 応募 CTA */
.mono-recruit-cta {
  padding: 104px var(--pad-x);
  text-align: center;
  border-bottom: 1px solid var(--rule);
}

.mono-recruit-cta__lead {
  margin: 0;
  font-size: clamp(26px, 3.3vw, 40px);
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: 0.04em;
}

.mono-recruit-cta__rule {
  width: 64px;
  height: 1px;
  margin: 40px auto;
  background: var(--accent);
}

.mono-recruit-cta__sub {
  margin: 0 auto;
  max-width: 42em;
  font-size: 17px;
  line-height: 2;
  letter-spacing: 0.04em;
  color: var(--fg-80);
}

.mono-recruit-apply {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-top: 48px;
  padding: 21px 50px;
  border: 1px solid var(--fg);
  font-family: var(--display);
  font-size: 16px;
  letter-spacing: 0.14em;
  color: var(--fg);
  transition: background-color 0.3s ease, color 0.3s ease;
}

.mono-recruit-apply:hover {
  background: var(--fg);
  color: var(--bg);
}

.mono-recruit-apply__mail {
  margin-top: 22px;
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--fg-45);
}

/* ============ 採用ページ全体: 配置は中央・行頭は左揃え ============ */
/* hero: eyebrow/title/lead をまとめて中央ブロックに（行頭は左揃え） */
.mono-recruit-page .mono-recruit-hero__inner {
  width: fit-content;
  max-width: 100%;
  margin-inline: auto;
}
/* セクション見出しを中央へ */
.mono-recruit-page .mono-section__head {
  justify-content: center;
}
/* 本文（prose）を中央ブロックに（テキストは左） */
.mono-recruit-page .mono-recruit-prose {
  margin-inline: auto;
}
/* カード群・職種グリッドを中央カラムに */
.mono-recruit-page .mono-recruit-cards,
.mono-recruit-page .mono-roles__grid {
  max-width: 1040px;
  margin-inline: auto;
}
/* 応募CTA: 見出し・本文は行頭左揃えのまま中央ブロックへ（区切り線・ボタン・メールは中央のまま） */
.mono-recruit-page .mono-recruit-cta__lead {
  width: fit-content;
  max-width: 100%;
  margin-inline: auto;
  text-align: left;
}
.mono-recruit-page .mono-recruit-cta__sub {
  text-align: left;
}
/* サブ見出し（あなたに任せたいこと）も中央へ */
.mono-recruit-page .mono-recruit-subhead {
  text-align: center;
}
/* 採用ページはセクション区切り線なし（余白で区切る。ヘッダー下線は全体共通のため残す）*/
.mono-recruit-hero,
.mono-recruit-cta,
.mono-recruit-page .mono-section {
  border-bottom: none;
}

/* ============ 職種切り替えタブ ============ */
.mono-recruit-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding: 30px var(--pad-x) 0;
}
.mono-recruit-tabs a {
  font-family: var(--display);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  padding: 10px 22px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--fg-55);
  transition: border-color 0.25s ease, color 0.25s ease, background-color 0.25s ease;
}
.mono-recruit-tabs a:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.mono-recruit-tabs a[aria-current="page"] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

/* ============ トップ導入文（本文を少し大きく＋締めコピー）============ */
/* 導入文の本文はトップ限定で 20px に（職種ページの prose は 18px のまま）*/
.mono-recruit-intro .mono-recruit-prose {
  font-size: 20px;
}
/* 締めコピーは本文(46em×20px=920px)に合わせて左端を揃える（em基準だと自身の大文字で広がるためpx固定）*/
.mono-recruit-intro__cta {
  max-width: 920px;
  margin: 46px auto 0;
  text-align: left;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 500;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--accent);
}

/* ============ 応募条件パネル ============ */
.mono-recruit-req {
  max-width: 640px;
  margin-inline: auto;
  background: rgba(236, 234, 228, 0.03);
  border-left: 3px solid var(--accent);
  padding: 40px 44px;
}
.mono-recruit-req__heading {
  margin: 0 0 16px;
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--accent);
}
.mono-recruit-req__lede {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--fg-80);
}
.mono-recruit-req__list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
}
.mono-recruit-req__list li {
  position: relative;
  padding: 13px 0 13px 28px;
  border-bottom: 1px solid var(--rule);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--fg);
}
.mono-recruit-req__list li:last-child {
  border-bottom: none;
}
.mono-recruit-req__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
}
.mono-recruit-req__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--fg-45);
}

/* ============ CLOSING の2ボタン ============ */
.mono-recruit-cta__actions {
  display: flex;
  gap: 18px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 48px;
}
.mono-recruit-cta__actions .mono-recruit-apply {
  margin-top: 0;
}
.mono-recruit-back-btn {
  display: inline-flex;
  align-items: center;
  padding: 21px 44px;
  border: 1px solid var(--fg-45);
  font-family: var(--display);
  font-size: 16px;
  letter-spacing: 0.14em;
  color: var(--fg);
  transition: border-color 0.3s ease, color 0.3s ease;
}
.mono-recruit-back-btn:hover {
  border-color: var(--fg);
}

@media (max-width: 768px) {
  .mono-recruit-cards {
    grid-template-columns: 1fr;
  }
  .mono-recruit-cta {
    padding: 72px var(--pad-x);
  }
  .mono-roles__grid {
    grid-template-columns: 1fr;
  }
  .mono-recruit-hero {
    padding: 88px var(--pad-x) 60px;
  }
  .mono-role-card {
    min-height: 0;
    padding: 36px 30px;
  }
}

/* --------------------------------------------------------- service (pinned) */
.mono-svc {
  position: relative;
  border-bottom: 1px solid var(--rule);
}

/* ピン留め有効時: セクションを縦に伸ばし sticky を効かせる（項目数×100vh）*/
.js .mono-svc.is-pinned {
  height: calc(var(--svc-count, 3) * 100vh);
}

.mono-svc__sticky {
  padding: 60px var(--pad-x);
}

.js .mono-svc.is-pinned .mono-svc__sticky {
  position: sticky;
  top: var(--header-h); /* サイトヘッダーの下に固定して見出しが隠れないように */
  height: calc(100vh - var(--header-h));
  display: flex;
  flex-direction: column;
  padding: 40px var(--pad-x);
  overflow: hidden;
}

.mono-svc__head {
  display: flex;
  align-items: baseline;
  gap: 18px;
}

.mono-svc__title {
  font-family: var(--display);
  font-weight: 500;
  font-size: 40px;
  letter-spacing: 0.06em;
  margin: 0;
}

.mono-svc__sub {
  font-size: 14.5px;
  letter-spacing: 0.3em;
  color: var(--fg-55);
}

.mono-svc__counter {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--fg-45);
}

/* SERVICE 導入ステートメント（中央・大きめ／ここは固定しない導入画面）。本文フォント（--serif）を継承 */
.mono-svc-intro {
  display: flex;
  flex-direction: column;
  padding: 76px var(--pad-x);
  box-sizing: border-box;
  border-top: 1px solid var(--rule-12);
}

/* 見出しの下に適度な間隔を空けて statement を中央配置（100vh をやめ上下余白を圧縮） */
.mono-svc-intro__body {
  margin-top: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mono-svc-intro__text {
  margin: 0;
  text-align: left;
  font-size: clamp(22px, 3.15vw, 40px);
  line-height: 2.05;
  letter-spacing: 0.09em;
  font-weight: 500; /* RECRUIT 大見出しと同じ太さ */
  color: var(--fg);
}

.mono-svc-intro__line {
  display: block;
}

/* アクセント語: 静的なテラコッタ色 */
.mono-svc-intro__em {
  color: var(--accent);
}

.mono-svc-intro__note {
  display: block;
  margin-top: 1.7em;
  font-size: clamp(15px, 1.6vw, 20px);
  font-weight: 400; /* 注記は軽め */
  letter-spacing: 0.08em;
  color: var(--fg-45);
}

/* スクロールで各行が順にフェードアップ（登場の動き）*/
.js .mono-svc-intro__line,
.js .mono-svc-intro__note {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.85s ease, transform 0.85s cubic-bezier(0.2, 0.6, 0.2, 1);
}

.js .mono-svc-intro__text.is-revealed .mono-svc-intro__line,
.js .mono-svc-intro__text.is-revealed .mono-svc-intro__note {
  opacity: 1;
  transform: none;
}

.js .mono-svc-intro__text.is-revealed .mono-svc-intro__line:nth-child(1) { transition-delay: 0.05s; }
.js .mono-svc-intro__text.is-revealed .mono-svc-intro__line:nth-child(2) { transition-delay: 0.2s; }
.js .mono-svc-intro__text.is-revealed .mono-svc-intro__line:nth-child(3) { transition-delay: 0.35s; }
.js .mono-svc-intro__text.is-revealed .mono-svc-intro__line:nth-child(4) { transition-delay: 0.5s; }
.js .mono-svc-intro__text.is-revealed .mono-svc-intro__note { transition-delay: 0.68s; }

.mono-svc__stage {
  position: relative;
  margin-top: 44px;
}

.js .mono-svc.is-pinned .mono-svc__stage {
  flex: 1;
  min-height: 0;
}

/* パネル: フォールバックは縦積みの行、ピン留め時は重ねてクロスフェード */
.mono-svc__panel {
  display: grid;
  grid-template-columns: 58% 42%;
  align-items: stretch;
  min-height: 360px;
  border-top: 1px solid var(--rule-12);
  padding: 28px 0;
}

.js .mono-svc.is-pinned .mono-svc__panel {
  position: absolute;
  inset: 0;
  min-height: 0;
  border-top: none;
  padding: 0;
  opacity: 0;
  transform: translateY(24px) scale(0.99);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.2, 0.6, 0.2, 1);
  pointer-events: none;
}

.js .mono-svc.is-pinned .mono-svc__panel.is-active {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.mono-svc__media {
  position: relative;
  /* 外枠なし。黒地の線画を全体表示（黒余白は背景と馴染む） */
  background-color: var(--bg);
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
}

/* 枠いっぱいで大きく見えるパネル（02立面・03内装）を、他と視覚サイズを揃える（縮小）*/
.mono-svc__media--sm {
  background-size: auto 80%;
}

.mono-svc__media span {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-40);
}

.mono-svc__info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-left: 56px;
}

.mono-svc__num {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(64px, 7vw, 112px);
  line-height: 0.9;
  letter-spacing: 0.02em;
  color: var(--fg);
}

.mono-svc__name {
  margin: 20px 0 6px;
  font-size: 28px;
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.35;
}

/* 名称の括弧補足：折り返す場合は括弧ごと次行へ（括弧の途中では割らない）*/
.mono-svc__name-note {
  white-space: nowrap;
}

.mono-svc__en {
  display: block;
  font-family: var(--display);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--fg-55);
}

.mono-svc__desc {
  margin: 22px 0 0;
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.04em;
  color: var(--fg-80);
  max-width: 34em;
}

/* 段落が続く場合の段落間スペース（見出しからの初回マージンより小さめ）*/
.mono-svc__desc + .mono-svc__desc {
  margin-top: 0.9em;
}

/* ドットは ピン留め時のみ表示 */
.mono-svc__dots {
  display: none;
  gap: 10px;
  margin-top: 24px;
}

.js .mono-svc.is-pinned .mono-svc__dots {
  display: flex;
}

.mono-svc__dot {
  width: 30px;
  height: 3px;
  background: rgba(236, 234, 228, 0.25);
  transition: background 0.3s ease;
}

.mono-svc__dot.is-active {
  background: var(--fg);
}

/* --------------------------------------------------------- works */
.mono-works__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 44px 36px;
}

.mono-work {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mono-work__thumb {
  aspect-ratio: 16 / 10;
  border: 1px solid var(--rule-16);
  background: repeating-linear-gradient(
    45deg,
    rgba(236, 234, 228, 0.045) 0 9px,
    transparent 9px 18px
  );
  display: flex;
  align-items: center;
  justify-content: center;
}

.mono-work__thumb span {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg-40);
}

.mono-work__caption {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}

.mono-work__name {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.06em;
}

.mono-work__cat {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--fg-45);
  white-space: nowrap;
}

/* --------------------------------------------------------- works slider */
/* 注目実績を自動で流すカルーセル（参考: 大きな画像＋情報オーバーレイ） */
.mono-slider {
  position: relative;
}

.mono-slider__viewport {
  overflow: hidden;
  border: 1px solid var(--rule-16);
}

.mono-slider__track {
  display: flex;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 画像を左、テキスト（タグ/年/タイトル/概要/詳細）を右の2カラムに */
.mono-slide {
  position: relative;
  flex: 0 0 100%;
  min-width: 0;
  display: grid;
  grid-template-columns: 62% 38%;
  min-height: 520px;
}

.mono-slide__media {
  display: block;
  position: relative;
  height: 100%;
  background: repeating-linear-gradient(
    45deg,
    rgba(236, 234, 228, 0.045) 0 9px,
    transparent 9px 18px
  );
  overflow: hidden;
}

.mono-slide__media:hover {
  opacity: 1; /* base の a:hover 減光を打ち消す（大きな画像は暗くしない） */
}

.mono-slide__media > span {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-40);
}

.mono-slide__info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 44px 48px;
  border-left: 1px solid var(--rule-16);
}

.mono-slide__tagrow {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.mono-slide__tags {
  display: flex;
  gap: 8px;
}

.mono-slide__tags span {
  border: 1px solid rgba(236, 234, 228, 0.5);
  padding: 4px 12px;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--fg);
}

.mono-slide__year {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--fg-55);
}

.mono-slide__title {
  margin: 0 0 12px;
}

.mono-slide__title a {
  font-family: var(--display);
  font-weight: 500;
  font-size: 30px;
  letter-spacing: 0.04em;
  line-height: 1.25;
}

.mono-slide__lead {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.9;
  letter-spacing: 0.06em;
  color: var(--fg-85);
}

.mono-slide__tmp {
  color: var(--fg-45);
  font-size: 0.85em;
}

.mono-slide__more {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  border-bottom: 1px solid rgba(236, 234, 228, 0.4);
  padding-bottom: 3px;
}

.mono-slider__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(5, 5, 5, 0.4);
  border: 1px solid rgba(236, 234, 228, 0.35);
  color: var(--fg);
  font-family: var(--display);
  font-size: 26px;
  line-height: 1;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.mono-slider__arrow:hover {
  background: rgba(5, 5, 5, 0.75);
  border-color: var(--fg);
  opacity: 1;
}

.mono-slider__arrow--prev {
  left: 16px;
}

.mono-slider__arrow--next {
  right: 16px;
}

.mono-slider__dots {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 22px;
}

.mono-slider__dot {
  width: 34px;
  height: 3px;
  padding: 0;
  border: none;
  background: rgba(236, 234, 228, 0.25);
  transition: background 0.2s ease;
}

.mono-slider__dot.is-active {
  background: var(--fg);
}

.mono-slider__dot:hover {
  background: rgba(236, 234, 228, 0.6);
}

@media (max-width: 768px) {
  /* スマホでは 画像→テキスト の縦積みに */
  .mono-slide {
    grid-template-columns: 1fr;
    min-height: 0;
  }
  .mono-slide__media {
    height: auto;
    aspect-ratio: 16 / 9;
  }
  .mono-slide__info {
    padding: 24px 22px;
    border-left: none;
    border-top: 1px solid var(--rule-16);
  }
  .mono-slide__title a {
    font-size: 22px;
  }
  .mono-slider__arrow {
    width: 42px;
    height: 42px;
    font-size: 22px;
  }
  .mono-slider__arrow--prev {
    left: 8px;
  }
  .mono-slider__arrow--next {
    right: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .mono-slider__track {
    transition: none;
  }
}

/* works cards (05-10): 小さな写真＋タイトルを 1行3つ */
.mono-cards {
  margin-top: 52px;
  padding-top: 44px;
  border-top: 1px solid var(--rule);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 36px 24px;
}

.mono-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.mono-card:hover {
  opacity: 1;
}

.mono-card__thumb {
  aspect-ratio: 4 / 3;
  border: 1px solid var(--rule-16);
  background: repeating-linear-gradient(
    45deg,
    rgba(236, 234, 228, 0.045) 0 9px,
    transparent 9px 18px
  );
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s ease;
}

.mono-card__thumb span {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg-40);
}

.mono-card:hover .mono-card__thumb {
  border-color: var(--fg-40);
}

.mono-card__body {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.mono-card__no {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg-40);
}

.mono-card__name {
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.5;
}

.mono-card:hover .mono-card__name {
  color: #fff;
}

.mono-card__meta {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--fg-45);
}

/* 施工実績はクリック可能（<a>）。ホバーで枠・行を明るく（base の a:hover 減光は打ち消す） */
.mono-work:hover {
  opacity: 1;
}

.mono-work:hover .mono-work__thumb {
  border-color: var(--fg-40);
}

.mono-work:hover .mono-work__name {
  color: #fff;
}

/* --------------------------------------------------------- about */
.mono-about {
  display: grid;
  grid-template-columns: 710px 1fr;
  border-bottom: 1px solid var(--rule);
}

.mono-about__left {
  padding: 78px var(--pad-x);
  border-right: 1px solid var(--rule);
}

.mono-about__lead {
  margin-top: 40px;
  font-size: 17px;
  line-height: 2.3;
  color: var(--fg-80);
}

.mono-about__right {
  padding: 78px var(--pad-x);
}

.mono-dl {
  display: grid;
  grid-template-columns: 150px 1fr;
  font-size: 16.5px;
  line-height: 1.8;
  letter-spacing: 0.05em;
}

.mono-dl dt,
.mono-dl dd {
  margin: 0;
  padding: 15px 0;
  border-bottom: 1px solid var(--rule-12);
}

.mono-dl dt {
  color: var(--fg-50);
}

/* --------------------------------------------------------- contact */
.mono-contact {
  padding: 78px var(--pad-x) 90px;
}

/* フォームを中央ブロックに（右側の画像は廃止。見出しは元の左揃えのまま） */
.mono-contact__body {
  max-width: 680px;
  margin-inline: auto;
}

.mono-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px 36px;
  max-width: 900px;
}

.mono-field {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mono-field--full {
  grid-column: 1 / -1;
}

.mono-field label {
  font-size: 13.5px;
  letter-spacing: 0.2em;
  color: var(--fg-55);
}

.mono-field input,
.mono-field textarea {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--input-line);
  padding: 10px 2px;
  color: var(--fg);
  font-size: 16.5px;
  font-family: var(--serif);
  outline: none;
}

.mono-field textarea {
  border: 1px solid var(--input-line);
  padding: 14px;
  resize: vertical;
}

.mono-field input:focus,
.mono-field textarea:focus {
  border-color: var(--fg);
}

.mono-field [aria-invalid="true"] {
  border-color: #d98b7c;
}

.mono-field .field-error {
  color: #d98b7c;
}

.mono-form__actions {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}

.mono-submit {
  background: var(--fg);
  color: var(--bg);
  border: none;
  padding: 16px 56px;
  font-family: var(--display);
  font-size: 15px;
  letter-spacing: 0.28em;
}

.mono-submit:disabled {
  opacity: 0.5;
  cursor: default;
}

.mono-form .form-status {
  color: var(--fg-85);
}

.mono-form .form-status[data-status="error"] {
  color: #d98b7c;
}

/* --------------------------------------------------------- footer */
.mono-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 26px var(--pad-x);
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--fg-40);
}

/* --------------------------------------------------------- works detail modal */
/* クリックで浮き出る詳細画面。背景を暗くし、パネルがふわっと立ち上がる */
.mono-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.mono-modal[hidden] {
  display: none;
}

.mono-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(3, 3, 3, 0.82);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.mono-modal.is-open .mono-modal__backdrop {
  opacity: 1;
}

.mono-modal__panel {
  position: relative;
  width: min(1440px, 96vw);
  height: min(940px, 94vh);
  background: var(--bg);
  border: 1px solid var(--rule-16);
  display: grid;
  grid-template-columns: 62% 38%;
  overflow: hidden;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.32s ease, transform 0.32s ease;
}

.mono-modal.is-open .mono-modal__panel {
  opacity: 1;
  transform: none;
}

.mono-modal__close {
  position: absolute;
  top: 18px;
  right: 18px;
  z-index: 4;
  background: rgba(5, 5, 5, 0.6);
  border: 1px solid rgba(236, 234, 228, 0.4);
  color: var(--fg);
  padding: 9px 16px;
  font-family: var(--display);
  font-size: 12px;
  letter-spacing: 0.2em;
}

/* 左: 写真ギャラリー（メイン＋サムネイル） */
.mono-modal__gallery {
  display: flex;
  flex-direction: column;
  min-height: 0;
  border-right: 1px solid var(--rule);
  background: #000;
}

.mono-modal__figure {
  flex: 1;
  min-height: 0;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #0a0a0a;
  background-image: repeating-linear-gradient(
    45deg,
    rgba(236, 234, 228, 0.045) 0 9px,
    transparent 9px 18px
  );
  background-size: cover;
  background-position: center;
}

.mono-modal__figure span {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-40);
}

.mono-modal__thumbs {
  flex: 0 0 auto;
  display: flex;
  gap: 10px;
  padding: 12px 14px;
  border-top: 1px solid var(--rule);
  overflow-x: auto;
}

.mono-modal__thumbs[hidden] {
  display: none;
}

.mono-modal__thumb {
  flex: 0 0 auto;
  width: 92px;
  aspect-ratio: 4 / 3;
  padding: 0;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--rule-16);
  background-color: #0a0a0a;
  background-image: repeating-linear-gradient(
    45deg,
    rgba(236, 234, 228, 0.045) 0 6px,
    transparent 6px 12px
  );
  background-size: cover;
  background-position: center;
  transition: border-color 0.2s ease;
}

.mono-modal__thumb span {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  font-family: var(--mono);
  font-size: 8.5px;
  line-height: 1.2;
  text-align: center;
  color: var(--fg-40);
}

.mono-modal__thumb.is-active {
  border-color: var(--fg);
}

.mono-modal__thumb:hover {
  border-color: var(--fg-45);
}

/* 右: 情報（縦スクロール） */
.mono-modal__body {
  min-height: 0;
  overflow-y: auto;
  padding: 56px 44px 44px;
}

.mono-modal__meta {
  display: flex;
  gap: 16px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--fg-45);
  margin-bottom: 14px;
}

.mono-modal__title {
  font-size: 24px;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.4;
  margin: 0 0 22px;
}

.mono-modal__desc {
  font-size: 15px;
  line-height: 2;
  letter-spacing: 0.04em;
  color: var(--fg-80);
  margin: 0 0 30px;
}

.mono-modal__spec {
  display: grid;
  grid-template-columns: 130px 1fr;
  font-size: 14px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  margin: 0;
  border-top: 1px solid var(--rule-12);
}

.mono-modal__spec dt,
.mono-modal__spec dd {
  margin: 0;
  padding: 13px 0;
  border-bottom: 1px solid var(--rule-12);
}

.mono-modal__spec dt {
  color: var(--fg-50);
}

.mono-modal__note {
  margin-top: 24px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--fg-40);
}

@media (max-width: 768px) {
  .mono-modal {
    padding: 0;
    align-items: stretch;
  }
  /* スマホは全画面・縦積み（写真→情報）。パネル全体をスクロール */
  .mono-modal__panel {
    width: 100%;
    height: 100%;
    border: none;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    overflow-y: auto;
  }
  .mono-modal__gallery {
    border-right: none;
    border-bottom: 1px solid var(--rule);
  }
  .mono-modal__figure {
    flex: none;
    aspect-ratio: 4 / 3;
  }
  .mono-modal__body {
    overflow: visible;
    padding: 28px 22px 40px;
  }
  .mono-modal__spec {
    grid-template-columns: 100px 1fr;
  }
}

/* モーション控えめ設定では立ち上がりアニメを無効化 */
@media (prefers-reduced-motion: reduce) {
  .mono-modal__backdrop,
  .mono-modal__panel {
    transition: none;
  }
  .mono-modal__panel {
    transform: none;
  }
}

/* ==========================================================================
   responsive
   ========================================================================== */

@media (max-width: 1024px) {
  :root {
    --pad-x: 36px;
  }
  .mono-hero {
    padding: 88px var(--pad-x) 150px;
  }
  .mono-hero__meta {
    position: static;
    margin-top: 40px;
    text-align: left;
    align-items: flex-start;
  }
  .mono-about {
    grid-template-columns: 460px 1fr;
  }
  .mono-dl {
    grid-template-columns: 130px 1fr;
  }
  .mono-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --pad-x: 24px;
  }
  .mono-header {
    padding: 20px var(--pad-x);
  }
  .mono-nav {
    gap: 20px;
    font-size: 14px;
  }
  .mono-section {
    padding: 60px var(--pad-x);
  }
  .mono-hero {
    padding: 64px var(--pad-x) 56px;
    /* スマホは大きめに右下へ。強めのオーバーレイで本文を確保 */
    background-size: 118% auto;
    background-position: right bottom;
  }
  /* 本文を読みやすく: 下だけでなく全体に軽く黒をかける */
  .mono-hero::before {
    background:
      linear-gradient(
        180deg,
        rgba(5, 5, 5, 0.55) 0%,
        rgba(5, 5, 5, 0.2) 40%,
        rgba(5, 5, 5, 0.9) 100%
      );
  }
  .mono-works__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .mono-about {
    grid-template-columns: 1fr;
  }
  .mono-about__left {
    border-right: none;
    border-bottom: 1px solid var(--rule);
  }
  .mono-form {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  /* cards: スマホは 2列 */
  .mono-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px 20px;
  }
  /* service（フォールバック=スマホ）: パネルを縦積み、画像→テキスト */
  .mono-svc__panel {
    grid-template-columns: 1fr;
    min-height: 0;
    padding: 26px 0;
  }
  .mono-svc__media {
    aspect-ratio: 16 / 9;
  }
  .mono-svc__info {
    padding-left: 0;
    padding-top: 22px;
  }
  .mono-svc__num {
    font-size: 52px;
  }
  .mono-svc__name {
    font-size: 22px;
  }
  .mono-svc__counter {
    display: none;
  }
}

@media (max-width: 480px) {
  :root {
    --pad-x: 20px;
  }
  .mono-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .mono-hero__lead {
    font-size: 25px;
  }
  .mono-hero__lead-sub {
    font-size: 18px;
  }
  .mono-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

/* ==========================================================================
   animations （A: スクロール表示 / B: ヒーロー登場）
   ========================================================================== */

/* --- A. スクロールで表示（.js のときだけ初期非表示）--- */
.js .mono-section__head,
.js .mono-slider,
.js .mono-card,
.js .mono-about__left,
.js .mono-about__right,
.js .mono-form {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.6, 0.2, 1);
}

.js .mono-section__head.is-revealed,
.js .mono-slider.is-revealed,
.js .mono-card.is-revealed,
.js .mono-about__left.is-revealed,
.js .mono-about__right.is-revealed,
.js .mono-form.is-revealed {
  opacity: 1;
  transform: none;
}

/* --- B. ヒーロー見出しの登場（読み込み時に行ごとに立ち上がる）--- */
.mono-hero__line {
  display: block;
}

.mono-hero__line > span {
  display: block;
  animation: monoHeroLine 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.mono-hero__line:nth-child(1) > span {
  animation-delay: 0.1s;
}

.mono-hero__line:nth-child(2) > span {
  animation-delay: 0.24s;
}

.mono-hero__lead {
  animation: monoHeroFade 0.9s ease both;
  animation-delay: 0.5s;
}

.mono-hero__meta {
  animation: monoHeroFade 0.9s ease both;
  animation-delay: 0.66s;
}

@keyframes monoHeroLine {
  from {
    opacity: 0;
    transform: translateY(0.5em);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes monoHeroFade {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* モーション控えめ設定では両方無効化（最初から表示）*/
@media (prefers-reduced-motion: reduce) {
  .js .mono-svc-intro__line,
  .js .mono-svc-intro__note,
  .js .mono-section__head,
  .js .mono-slider,
  .js .mono-card,
  .js .mono-about__left,
  .js .mono-about__right,
  .js .mono-form {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .mono-hero__line > span,
  .mono-hero__lead,
  .mono-hero__meta {
    animation: none;
  }
}