/* ============================================================
   Phase 2 追加分 (2026-08-28)
   site.css の後に読み込む。既存の色・書体・罫線の語彙をそのまま使い、
   「同じカードグリッドを連続させない」ためのバリエーションだけを足す。
   ============================================================ */

/* ---- HERO 左右構成 (PC 60:40) ---- */
.hero-split { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 4fr); gap: 3.5rem; align-items: center; width: 100%; position: relative; z-index: 2; }
.hero-split .hero-content { max-width: none; }
.hero-visual { position: relative; }
.hero-visual .stack { position: relative; aspect-ratio: 4 / 5; }
.hero-visual figure { position: absolute; margin: 0; overflow: hidden; border: 1px solid var(--line-strong); background: var(--bg-2); }
.hero-visual figure img { width: 100%; height: 100%; object-fit: cover; display: block; }
.hero-visual .front { inset: 0 22% 18% 0; z-index: 2; box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55); }
.hero-visual .back { inset: 26% 0 0 26%; z-index: 1; }
.hero-visual figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 0.5rem 0.7rem;
  font-family: var(--mono); font-size: 0.52rem; letter-spacing: 0.2em; color: var(--fg-mute);
  background: linear-gradient(to top, rgba(10, 9, 8, 0.92), transparent);
}
/* 画像が無い時はプレースホルダとして罫線だけ残し、レイアウトを崩さない */
.hero-visual figure.empty { display: flex; align-items: center; justify-content: center; }
.hero-visual figure.empty::after {
  content: attr(data-label); font-family: var(--mono); font-size: 0.55rem;
  letter-spacing: 0.28em; color: var(--fg-dim); text-align: center; padding: 1rem;
}

/* ---- PROOF ---- */
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line-strong); border: 1px solid var(--line-strong); }
.proof-cell { background: var(--bg); padding: 2.4rem 1.9rem; }
.proof-figure { font-family: var(--serif); font-size: 2.5rem; font-weight: 700; color: var(--gold); line-height: 1; letter-spacing: -0.02em; margin-bottom: 0.7rem; }
.proof-figure small { font-size: 0.5em; color: var(--fg-mute); margin-left: 0.25rem; font-weight: 400; }
.proof-label { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.22em; color: var(--fg-mute); margin-bottom: 0.5rem; }
.proof-desc { font-size: 0.76rem; color: var(--fg-dim); line-height: 1.65; }
.proof-tags { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.75rem; }
.proof-tag { border: 1px solid var(--gold-line); padding: 0.7rem 1.1rem; background: rgba(201, 169, 90, 0.04); }
.proof-tag b { display: block; font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.22em; color: var(--gold); font-weight: 500; margin-bottom: 0.3rem; }
.proof-tag span { font-size: 0.76rem; color: var(--fg-mute); }
.asof {
  display: inline-block; font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.26em;
  color: var(--gold); border: 1px solid var(--gold-line); padding: 0.22rem 0.65rem;
  margin-left: 0.8rem; vertical-align: middle; white-space: nowrap;
}
.section-note { margin-top: 1.4rem; font-size: 0.76rem; color: var(--fg-dim); line-height: 1.9; max-width: 54rem; }

/* ---- CAPABILITIES (大小を混ぜて視線のリズムを作る) ---- */
.cap-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.cap { background: var(--bg); padding: 2.2rem 1.9rem; grid-column: span 2; display: flex; flex-direction: column; }
.cap.lead { grid-column: span 3; }
.cap-num { font-family: var(--mono); font-size: 0.56rem; letter-spacing: 0.28em; color: var(--gold); margin-bottom: 0.9rem; }
.cap-title { font-family: var(--serif); font-size: 1.25rem; font-weight: 700; line-height: 1.45; margin-bottom: 0.3rem; }
.cap-en { font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.2em; color: var(--fg-mute); margin-bottom: 1rem; }
.cap-desc { font-size: 0.86rem; line-height: 1.95; color: var(--fg); opacity: 0.86; flex: 1; }
.cap-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1.2rem; }
.cap-tags span { font-family: var(--mono); font-size: 0.54rem; letter-spacing: 0.14em; color: var(--fg-mute); border: 1px solid var(--line-strong); padding: 0.25rem 0.55rem; }

/* ---- FROM CONTENT TO BUSINESS (1本のフロー) ---- */
.chain { display: flex; flex-wrap: wrap; align-items: stretch; gap: 0; border: 1px solid var(--line); }
.chain-step { flex: 1 1 15%; min-width: 9.5rem; padding: 1.6rem 1.2rem; border-right: 1px solid var(--line); position: relative; }
.chain-step:last-child { border-right: 0; }
.chain-key { font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.24em; color: var(--gold); margin-bottom: 0.6rem; }
.chain-body { font-size: 0.76rem; color: var(--fg-mute); line-height: 1.75; }

/* ---- PRODUCTION BACKBONE ---- */
.backbone { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 2.5rem; align-items: start; }
.stack-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.stack-cat { background: var(--bg); padding: 1.7rem 1.5rem; }
.stack-cat h4 { font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.24em; color: var(--gold); font-weight: 500; margin-bottom: 0.9rem; }
.stack-cat ul { list-style: none; }
.stack-cat li { font-size: 0.8rem; color: var(--fg-mute); padding: 0.28rem 0; }
.shot { border: 1px solid var(--line-strong); background: var(--bg-2); overflow: hidden; }
.shot img { width: 100%; height: auto; display: block; }
.shot.empty { aspect-ratio: 16 / 10; display: flex; align-items: center; justify-content: center; }
.shot.empty::after {
  content: attr(data-label); font-family: var(--mono); font-size: 0.56rem;
  letter-spacing: 0.24em; color: var(--fg-dim); text-align: center; padding: 1.5rem; line-height: 2;
}
.shot figcaption { padding: 0.7rem 1rem; font-family: var(--mono); font-size: 0.54rem; letter-spacing: 0.18em; color: var(--fg-dim); border-top: 1px solid var(--line); }

/* ---- WORKS 3ブロック ---- */
.works-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.work-block { background: var(--bg); padding: 2.1rem 1.8rem; }
.work-block h3 { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.26em; color: var(--gold); font-weight: 500; margin-bottom: 1rem; }
.work-block p { font-size: 0.82rem; color: var(--fg-mute); line-height: 1.9; margin-bottom: 1.2rem; }
.work-links { display: flex; flex-direction: column; gap: 0.55rem; }
.work-links a { color: var(--fg); text-decoration: none; font-size: 0.84rem; border-bottom: 1px solid var(--line-strong); padding-bottom: 0.45rem; transition: color 0.3s, border-color 0.3s; }
.work-links a:hover { color: var(--gold); border-color: var(--gold-line); }
.work-links a small { display: block; font-family: var(--mono); font-size: 0.54rem; letter-spacing: 0.16em; color: var(--fg-dim); margin-top: 0.2rem; }

/* ---- 顧客別入口 ---- */
.route-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.route {
  border: 1px solid var(--gold-line); background: linear-gradient(160deg, rgba(201, 169, 90, 0.07), transparent 60%), var(--bg-2);
  padding: 2.6rem 2.3rem; display: flex; flex-direction: column;
}
.route-label { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.28em; color: var(--gold); margin-bottom: 1.1rem; }
.route h3 { font-family: var(--serif); font-size: 1.4rem; font-weight: 700; line-height: 1.5; margin-bottom: 0.9rem; }
.route p { font-size: 0.86rem; line-height: 1.95; color: var(--fg); opacity: 0.86; flex: 1; margin-bottom: 1.6rem; }
.route .hero-cta { align-self: flex-start; }

/* ---- FAQ (details) ---- */
.faq { border: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq details:last-child { border-bottom: 0; }
.faq summary {
  cursor: pointer; padding: 1.25rem 1.6rem; font-size: 0.9rem; color: var(--fg);
  list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  transition: color 0.3s;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; font-family: var(--mono); color: var(--gold); flex-shrink: 0; }
.faq details[open] summary::after { content: '\2212'; }
.faq summary:hover { color: var(--gold); }
.faq .answer { padding: 0 1.6rem 1.4rem; font-size: 0.84rem; line-height: 2; color: var(--fg-mute); }

/* ---- 付随ツールのタグ表示 ---- */
.tool-tags { display: flex; flex-wrap: wrap; gap: 0.55rem; }
.tool-tags span { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.12em; color: var(--fg-mute); border: 1px solid var(--line-strong); padding: 0.45rem 0.8rem; }

/* ---- ケーススタディ ---- */
.case-list { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.case-item { background: var(--bg); padding: 2.2rem 2rem; }
.case-tag { font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.24em; color: var(--gold); margin-bottom: 1rem; }
.case-item h3 { font-family: var(--serif); font-size: 1.2rem; font-weight: 700; margin-bottom: 1.3rem; line-height: 1.5; }
.case-rows { display: grid; grid-template-columns: 8rem 1fr; gap: 0.65rem 1.4rem; }
.case-rows dt { font-family: var(--mono); font-size: 0.56rem; letter-spacing: 0.2em; color: var(--fg-dim); padding-top: 0.25rem; }
.case-rows dd { font-size: 0.84rem; line-height: 1.9; color: var(--fg); opacity: 0.86; }

/* ---- ポリシー要約 ---- */
.policy-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.policy-item { background: var(--bg); padding: 1.6rem 1.5rem; font-size: 0.83rem; line-height: 1.95; color: var(--fg); opacity: 0.86; }
.policy-item b { display: block; font-family: var(--mono); font-size: 0.56rem; letter-spacing: 0.22em; color: var(--gold); font-weight: 500; margin-bottom: 0.55rem; }

/* ---- CONTACT を統合したときの補助 ---- */
.contact-routes { display: flex; flex-wrap: wrap; gap: 0.6rem; justify-content: center; margin-top: 1.6rem; }
.contact-routes span { font-family: var(--mono); font-size: 0.56rem; letter-spacing: 0.16em; color: var(--fg-mute); border: 1px solid var(--line-strong); padding: 0.4rem 0.75rem; }

/* ---- ナビの CONTACT ボタン ---- */
nav.top ul a.nav-cta {
  border: 1px solid var(--gold-line); padding: 0.5rem 0.9rem; color: var(--gold);
}
nav.top ul a.nav-cta::after { display: none; }
nav.top ul a.nav-cta:hover { background: var(--gold-soft); }

/* ---- レスポンシブ ---- */
@media (max-width: 1024px) {
  .hero-split { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-visual { max-width: 30rem; }
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .cap, .cap.lead { grid-column: span 1; }
  .backbone { grid-template-columns: 1fr; }
  .works-grid { grid-template-columns: 1fr; }
  .route-grid { grid-template-columns: 1fr; }
  .policy-list { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .proof-cell { padding: 1.7rem 1.3rem; }
  .proof-figure { font-size: 1.9rem; }
  .cap-grid { grid-template-columns: 1fr; }
  .stack-grid { grid-template-columns: 1fr; }
  .chain-step { flex: 1 1 100%; border-right: 0; border-bottom: 1px solid var(--line); }
  .chain-step:last-child { border-bottom: 0; }
  .case-rows { grid-template-columns: 1fr; gap: 0.25rem 0; }
  .case-rows dd { margin-bottom: 0.85rem; }
  .route { padding: 2rem 1.5rem; }
  .hero-visual .front { inset: 0 18% 14% 0; }
  .hero-visual .back { inset: 22% 0 0 22%; }
}
@media (max-width: 400px) {
  .proof-grid { grid-template-columns: 1fr; }
}

/* ---- 動きを減らす設定を尊重する ---- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
}


/* ============================================================
   Phase 2.1 editorial/layout polish
   ============================================================ */
.section-head { margin-bottom: clamp(2.6rem, 4vw, 3.8rem); }
.proof-label, .proof-tag b, .cap-num, .cap-en, .chain-key, .stack-cat h4, .route-label, .case-tag, .policy-item b { font-size: max(0.62rem, 10px); }
.cap-tags span, .work-links a small, .contact-routes span { font-size: max(0.6rem, 10px); }

/* 画像未配布でも“工事中”に見せない、事実ベースのタイポグラフィック・シグナル */
.hero-signal { min-height: 32rem; display: flex; align-items: center; justify-content: center; }
.signal-frame { width: 100%; aspect-ratio: 4 / 5; border: 1px solid var(--gold-line); background: linear-gradient(145deg, rgba(201,169,90,.085), transparent 45%), radial-gradient(circle at 82% 18%, rgba(201,169,90,.11), transparent 25%), var(--bg-2); position: relative; padding: 2.2rem; display: flex; flex-direction: column; justify-content: space-between; overflow: hidden; box-shadow: 0 28px 70px rgba(0,0,0,.34); }
.signal-frame::before, .signal-frame::after { content: ''; position: absolute; pointer-events: none; }
.signal-frame::before { inset: 9% -24% auto 34%; height: 1px; background: linear-gradient(90deg, transparent, var(--gold), transparent); transform: rotate(-18deg); opacity: .7; }
.signal-frame::after { width: 13rem; height: 13rem; border: 1px solid rgba(201,169,90,.18); border-radius: 50%; right: -4rem; bottom: -3rem; box-shadow: 0 0 0 2.7rem rgba(201,169,90,.025), 0 0 0 5.5rem rgba(201,169,90,.018); }
.signal-kicker { font-family: var(--mono); font-size: .65rem; letter-spacing: .26em; color: var(--gold); position: relative; z-index: 1; }
.signal-title { display: grid; gap: .55rem; position: relative; z-index: 1; }
.signal-title span { font-family: var(--serif); font-size: clamp(2rem, 4vw, 3.4rem); font-weight: 700; letter-spacing: -.025em; line-height: .95; }
.signal-title i { font-family: var(--serif); font-size: 1rem; color: var(--gold); font-style: normal; padding-left: .12rem; }
.signal-meta { display: flex; flex-wrap: wrap; gap: .55rem; position: relative; z-index: 1; }
.signal-meta span { font-family: var(--mono); font-size: .62rem; letter-spacing: .18em; color: var(--fg-mute); border: 1px solid var(--line-strong); padding: .42rem .65rem; background: rgba(10,9,8,.38); }

.system-visual { aspect-ratio: 16 / 10; border: 1px solid var(--gold-line); background: linear-gradient(160deg, rgba(201,169,90,.07), transparent 50%), var(--bg-2); padding: 1.6rem; display: flex; flex-direction: column; justify-content: space-between; overflow: hidden; position: relative; }
.system-visual::after { content: ''; position: absolute; inset: 30% -12% auto 26%; height: 1px; background: linear-gradient(90deg, transparent, var(--gold), transparent); transform: rotate(-12deg); opacity: .55; }
.system-visual-kicker, .system-visual-foot { font-family: var(--mono); font-size: .62rem; letter-spacing: .22em; color: var(--gold); position: relative; z-index: 1; }
.system-visual-foot { color: var(--fg-dim); }
.system-core { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: .55rem; position: relative; z-index: 1; }
.system-core span { border: 1px solid var(--line-strong); padding: .85rem .7rem; font-family: var(--mono); font-size: .65rem; letter-spacing: .13em; color: var(--fg); background: rgba(10,9,8,.38); }
.system-core span:last-child { grid-column: 1 / -1; }

.contact-inline { margin-top: clamp(4rem, 7vw, 6.5rem); padding-top: clamp(3rem, 5vw, 4.5rem); border-top: 1px solid var(--line); text-align: center; }
.contact-inline .contact-title { max-width: 42rem; margin-left: auto; margin-right: auto; }
.contact-inline .contact-cta { margin-left: auto; margin-right: auto; }
.contact-inline .company-info { margin-top: 2.5rem; }
.contact-inline .contact-closing { margin-top: 2rem; }
.tool-tags { margin-top: 1.2rem; }
.flow-steps.three { grid-template-columns: repeat(3, 1fr); }
.pricing-grid.three { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 1024px) {
  .hero-signal { max-width: 28rem; min-height: 0; }
  .flow-steps.three, .pricing-grid.three { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .hero-signal { width: min(100%, 24rem); }
  .signal-frame { padding: 1.5rem; }
  .signal-title span { font-size: clamp(1.8rem, 10vw, 2.8rem); }
  .signal-kicker, .signal-meta span { font-size: .6rem; }
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 340px) {
  .proof-grid { grid-template-columns: 1fr; }
}

@media (min-width: 1025px) {
  body[data-page="creator"] .hero h1 { font-size: clamp(2.5rem, 4.7vw, 4.25rem); }
}


/* ============================================================
   Phase 2.2 Release Safety / Platform Fit
   素材なしでも完成して見える横長の公開前レビュー帯。
   ============================================================ */
.release-safety {
  margin-top: clamp(2.8rem, 5vw, 4.5rem);
  border: 1px solid var(--gold-line);
  background: linear-gradient(145deg, rgba(201,169,90,.07), transparent 48%), var(--bg-2);
  overflow: hidden;
}
.release-head { padding: clamp(1.8rem, 3.5vw, 2.8rem); border-bottom: 1px solid var(--line); max-width: 68rem; }
.release-kicker { font-family: var(--mono); font-size: max(.62rem,10px); letter-spacing: .24em; color: var(--gold); margin-bottom: .9rem; }
.release-head h3 { font-family: var(--serif); font-size: clamp(1.45rem, 2.4vw, 2rem); line-height: 1.45; margin-bottom: .85rem; }
.release-head p { font-size: .88rem; line-height: 2; color: var(--fg); opacity: .86; }
.release-grid { display: grid; grid-template-columns: repeat(3,1fr); }
.release-item { padding: 1.8rem 1.6rem 2rem; border-right: 1px solid var(--line); }
.release-item:last-child { border-right: 0; }
.release-item b { display:block; font-family:var(--mono); font-size:max(.62rem,10px); letter-spacing:.18em; color:var(--gold); font-weight:500; margin-bottom:.75rem; }
.release-item h4 { font-family:var(--serif); font-size:1.05rem; line-height:1.55; margin-bottom:.75rem; }
.release-item p { font-size:.8rem; line-height:1.95; color:var(--fg-mute); }
.release-foot { border-top:1px solid var(--line); padding:.9rem 1.4rem; font-family:var(--mono); font-size:max(.58rem,10px); letter-spacing:.12em; color:var(--gold); display:flex; flex-wrap:wrap; gap:.6rem; align-items:center; }
.release-foot i { font-style:normal; color:var(--fg-dim); }
.release-foot span { margin-left:auto; color:var(--fg-dim); letter-spacing:.08em; }
.release-note { margin-top: 1.4rem; }

@media (max-width: 900px) {
  .release-grid { grid-template-columns: 1fr; }
  .release-item { border-right:0; border-bottom:1px solid var(--line); }
  .release-item:last-child { border-bottom:0; }
  .release-foot span { margin-left:0; width:100%; line-height:1.7; }
}