/* =============================================================
   ettract — POLISH LAYER (items 1-13, 16-25, 27-28)
   Sticky CTA, Exit modal, Trust copy, Related, Reading time,
   Breadcrumb, Back-to-top, Tag filter, Giscus, RSS, Newsletter,
   Critical optimizations, Prism, Clarity, Plausible, Cookie consent,
   A11y statement, Mermaid, Pricing
   ============================================================= */

/* [17] font-display — Note: actual swap is done in <link href="...&display=swap"> in HTML */

/* [2] Sticky CTA — floating button bottom-right */
.e-sticky-cta {
  position: fixed; bottom: 21px; right: 21px; z-index: 999;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 21px; border-radius: 100px;
  background: var(--gradient-main);
  color: #fff; font-size: 14px; font-weight: 700;
  box-shadow: 0 8px 24px rgba(124,58,237,.4), 0 0 40px rgba(6,182,212,.2);
  text-decoration: none;
  opacity: 0; transform: translateY(100px);
  transition: opacity .4s var(--ease), transform .4s var(--ease), box-shadow .3s var(--ease);
}
.e-sticky-cta.is-visible { opacity: 1; transform: translateY(0); }
.e-sticky-cta:hover { box-shadow: 0 12px 32px rgba(124,58,237,.6), 0 0 60px rgba(6,182,212,.3); }
.e-sticky-cta__reply {
  font-size: 11px; font-weight: 500; color: rgba(255,255,255,.75); margin-left: 6px;
  display: block; line-height: 1;
}
@media (max-width: 640px) {
  .e-sticky-cta { bottom: 13px; right: 13px; padding: 10px 16px; font-size: 12px; }
  .e-sticky-cta__reply { display: none; }
}

/* [3] Exit Intent modal */
.e-exit-modal {
  position: fixed; inset: 0; z-index: 10005;
  display: flex; align-items: center; justify-content: center;
  background: rgba(10,10,25,.7); backdrop-filter: blur(8px);
  opacity: 0; pointer-events: none;
  transition: opacity .3s var(--ease);
}
.e-exit-modal.is-open { opacity: 1; pointer-events: auto; }
.e-exit-modal__box {
  max-width: 520px; padding: 55px 34px;
  background: linear-gradient(145deg, #1e1e46, #16163a);
  border: 1px solid var(--glass-border-hover);
  border-radius: var(--radius-lg);
  text-align: center; transform: scale(.9);
  transition: transform .4s var(--ease);
  box-shadow: 0 30px 80px rgba(0,0,0,.5);
}
.e-exit-modal.is-open .e-exit-modal__box { transform: scale(1); }
.e-exit-modal h3 { font-size: 24px; font-weight: 800; margin-bottom: 13px; color: var(--text); }
.e-exit-modal p  { font-size: 14px; color: var(--text-secondary); margin-bottom: 21px; line-height: 1.7; }
.e-exit-modal__actions { display: flex; gap: 13px; justify-content: center; flex-wrap: wrap; }
.e-exit-modal__close { position: absolute; top: 13px; right: 13px; width: 32px; height: 32px; border-radius: 50%; background: rgba(255,255,255,.08); color: var(--text-secondary); font-size: 18px; line-height: 30px; text-align: center; border: none; cursor: pointer; }
.e-exit-modal__close:hover { background: rgba(255,255,255,.15); color: var(--text); }

/* [4] Multi-step form */
.e-msform { }
.e-msform__steps { display: flex; gap: 8px; margin-bottom: 34px; }
.e-msform__step-indicator {
  flex: 1; height: 4px; border-radius: 2px;
  background: rgba(255,255,255,.1);
  transition: background .3s;
}
.e-msform__step-indicator.is-active { background: var(--gradient-main); }
.e-msform__step-indicator.is-done { background: var(--cyan); }
.e-msform__step { display: none; }
.e-msform__step.is-active { display: block; animation: ms-fade .35s var(--ease); }
@keyframes ms-fade { from { opacity: 0; transform: translateX(12px); } to { opacity: 1; transform: translateX(0); } }
.e-msform__nav { display: flex; justify-content: space-between; gap: 13px; margin-top: 21px; }

/* [5] Trust microcopy */
.trust-copy {
  display: flex; align-items: center; justify-content: center; gap: 13px;
  font-size: 12px; color: var(--text-tertiary);
  margin-top: 13px; flex-wrap: wrap;
}
.trust-copy span { display: inline-flex; align-items: center; gap: 4px; }
.trust-copy svg { width: 14px; height: 14px; color: #10b981; flex-shrink: 0; }

/* [6] Related articles */
.related-articles { margin-top: 55px; padding-top: 34px; border-top: 1px solid var(--glass-border); }
.related-articles h3 { font-size: 14px; letter-spacing: 2px; color: var(--text-tertiary); text-transform: uppercase; margin-bottom: 21px; }
.related-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 13px; }
.related-card {
  padding: 16px; border: 1px solid var(--glass-border); border-radius: 10px;
  background: var(--bg-card); transition: border-color .3s, transform .3s;
  text-decoration: none; display: block; min-width: 0;
}
.related-card:hover { border-color: var(--accent-light); transform: translateY(-2px); }
.related-card__date { font-size: 11px; color: var(--text-tertiary); }
.related-card__title { font-size: 13px; font-weight: 600; color: var(--text); margin-top: 6px; line-height: 1.5; }
@media (max-width: 768px) { .related-grid { grid-template-columns: 1fr; } }

/* [7] Reading time */
.read-time {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; color: var(--text-tertiary); margin-left: 13px;
}
.read-time::before { content: '⏱'; font-size: 12px; }

/* [8] Breadcrumb */
.breadcrumb {
  display: flex; flex-wrap: wrap; gap: 8px;
  font-size: 12px; color: var(--text-tertiary);
  margin-bottom: 21px;
}
.breadcrumb a { color: var(--cyan-light); text-decoration: none; transition: color .2s; }
.breadcrumb a:hover { color: var(--text); }
.breadcrumb__sep { color: var(--text-tertiary); opacity: .5; }
.breadcrumb__current { color: var(--text-secondary); }

/* [9] Back-to-top FAB */
.e-back-top {
  position: fixed; bottom: 89px; right: 21px; z-index: 998;
  width: 42px; height: 42px; border-radius: 50%;
  background: rgba(30,30,82,.9); backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border-hover);
  color: var(--text); font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  opacity: 0; transform: translateY(40px); pointer-events: none;
  transition: opacity .3s, transform .3s, background .3s;
}
.e-back-top.is-visible { opacity: .85; transform: translateY(0); pointer-events: auto; }
.e-back-top:hover { background: rgba(124,58,237,.6); opacity: 1; }
@media (max-width: 640px) { .e-back-top { bottom: 68px; right: 13px; width: 38px; height: 38px; } }

/* [10] Tag filter chips (blog index) */
.blog-tag-filter {
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;
  margin: 21px 0 34px;
}
.blog-tag-chip {
  padding: 6px 14px; border-radius: 100px;
  background: rgba(255,255,255,.04); border: 1px solid var(--glass-border);
  font-size: 12px; color: var(--text-secondary); cursor: pointer;
  transition: all .2s var(--ease);
}
.blog-tag-chip:hover { border-color: var(--accent-light); color: var(--text); }
.blog-tag-chip.is-active { background: var(--gradient-main); color: #fff; border-color: transparent; }

/* [11][13] Giscus / Newsletter: 外部サービス依存のため除外 */

/* [19] CLS prevention — image aspect ratios */
.article-body img { aspect-ratio: auto; max-width: 100%; height: auto; }
.blog-thumb { aspect-ratio: 16 / 9; }

/* [20] Prism.js override to match ettract brand */
pre[class*="language-"] {
  background: rgba(10,10,22,.7) !important;
  border: 1px solid var(--glass-border) !important;
}
.token.keyword { color: #c4b5fd !important; }
.token.string  { color: #6ee7b7 !important; }
.token.number  { color: #67e8f9 !important; }
.token.comment { color: var(--text-tertiary) !important; font-style: italic; }

/* [23] Cookie consent banner */
.e-cookie-consent {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 9999;
  padding: 21px 34px; background: rgba(10,10,25,.95); backdrop-filter: blur(12px);
  border-top: 1px solid var(--glass-border-hover);
  display: flex; align-items: center; justify-content: space-between; gap: 21px;
  transform: translateY(100%); transition: transform .4s var(--ease);
  flex-wrap: wrap;
}
.e-cookie-consent.is-visible { transform: translateY(0); }
.e-cookie-consent__text { font-size: 13px; color: var(--text-secondary); flex: 1; min-width: 280px; }
.e-cookie-consent__text a { color: var(--cyan-light); text-decoration: underline; }
.e-cookie-consent__actions { display: flex; gap: 8px; }
.e-cookie-consent button { padding: 10px 21px; border-radius: 100px; font-size: 13px; font-weight: 600; cursor: pointer; border: none; }
.e-cookie-consent button.accept { background: var(--gradient-main); color: #fff; }
.e-cookie-consent button.decline { background: transparent; color: var(--text-secondary); border: 1px solid var(--glass-border); }

/* [27] Mermaid — override node bg to match brand */
.mermaid { background: transparent !important; }
.mermaid .node rect, .mermaid .node circle, .mermaid .node polygon {
  fill: rgba(124,58,237,.1) !important; stroke: #a78bfa !important;
}
.mermaid .edgePath .path { stroke: #67e8f9 !important; }

/* [28] Pricing table */
.pricing-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 21px; max-width: 1132px; margin: 0 auto; }
.pricing-card { padding: 34px; border: 1px solid var(--glass-border); border-radius: var(--radius); background: var(--bg-card); min-width: 0; }
.pricing-card.featured { border-color: var(--accent-light); background: linear-gradient(145deg, rgba(124,58,237,.12), rgba(6,182,212,.06)); transform: scale(1.02); }
.pricing-card__tier { font-size: 12px; letter-spacing: 2px; color: var(--cyan-light); text-transform: uppercase; margin-bottom: 13px; }
.pricing-card__price { font-size: 34px; font-weight: 800; background: var(--gradient-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.pricing-card__price-note { font-size: 12px; color: var(--text-tertiary); }
.pricing-card__desc { font-size: 13px; color: var(--text-secondary); line-height: 1.7; margin: 13px 0 21px; }
.pricing-card ul { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 8px; margin-bottom: 21px; }
.pricing-card li { font-size: 13px; color: var(--text-secondary); display: flex; gap: 8px; align-items: start; }
.pricing-card li::before { content: '✓'; color: #10b981; font-weight: 700; flex-shrink: 0; }
@media (max-width: 1024px) { .pricing-grid { grid-template-columns: 1fr; } .pricing-card.featured { transform: none; } }

/* ============================================================
   Client Logo Wall — Linear / Stripe inspired
   モノクロ → hover で色復帰 + 微妙な浮き上がり
   ============================================================ */
.client-wall {
  max-width: 1132px; margin: 0 auto; padding: 34px 0;
}
.client-wall__label {
  text-align: center; font-size: 11px; letter-spacing: 4px;
  color: var(--text-tertiary); text-transform: uppercase; margin-bottom: 34px;
}
.client-wall__grid {
  display: grid; grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 13px;
}
@media (max-width: 1024px) { .client-wall__grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media (max-width: 640px)  { .client-wall__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }

.client-tile {
  aspect-ratio: 2 / 1;
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 10px;
  position: relative; overflow: hidden; min-width: 0;
  transition: background .4s var(--ease), border-color .4s var(--ease), transform .4s var(--ease);
}
.client-tile::before {
  /* hover 時、ブランドカラーの薄い下地 glow */
  content: ''; position: absolute; inset: -1px;
  background: linear-gradient(135deg, rgba(124,58,237,.08), rgba(6,182,212,.06));
  opacity: 0; transition: opacity .4s var(--ease);
  border-radius: 10px;
}
.client-tile:hover {
  border-color: rgba(167,139,250,.35);
  transform: translateY(-2px);
  background: rgba(30,30,70,.4);
}
.client-tile:hover::before { opacity: 1; }

.client-tile img, .client-tile .client-tile__text {
  position: relative; z-index: 1;
  max-width: 100%; max-height: 70%;
  object-fit: contain;
  /* 初期状態: 白化 + 薄く表示 */
  filter: brightness(0) invert(1);
  opacity: .55;
  transition: filter .4s var(--ease), opacity .4s var(--ease);
}
.client-tile:hover img, .client-tile:hover .client-tile__text {
  /* hover: 本来の色に復帰 + 完全不透明 */
  filter: none;
  opacity: 1;
}

/* テキスト版フォールバック（ロゴ画像未配置時） */
.client-tile__text {
  font-family: 'Inter', sans-serif;
  font-size: 14px; font-weight: 800; letter-spacing: -.01em;
  color: #fff;
  text-align: center;
  line-height: 1.2;
  /* テキスト版はフィルタ不要 */
  filter: none !important;
}
.client-tile:has(img[data-has-image="false"]) .client-tile__text { display: block; }
.client-tile:has(img[data-has-image="true"]) .client-tile__text { display: none; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .client-tile, .client-tile img, .client-tile__text { transition: none !important; }
}

/* pricing.html 「なぜこの価格で出せるのか」— Bento 影響を受けない独立グリッド */
.why-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 21px; max-width: 1132px; margin: 0 auto; }
.why-card { background: var(--bg-card); backdrop-filter: blur(12px); border: 1px solid var(--glass-border); border-radius: var(--radius); padding: 34px; min-width: 0; transition: border-color .3s, transform .3s; display: flex; flex-direction: column; }
.why-card:hover { border-color: var(--glass-border-hover); transform: translateY(-3px); }
.why-num { font: 900 42px/1 'Inter', sans-serif; color: var(--accent-light); opacity: .45; margin-bottom: 13px; letter-spacing: -.04em; }
.why-card h3 { font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 13px; word-break: keep-all; }
.why-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.8; }
@media (max-width: 1024px) { .why-grid { grid-template-columns: 1fr; } }