/* ============================================================
   LOCAL SHIFT — guide.css
   ガイド・ハブ・404 共通スタイル
   トップの暗色ブランドを維持し、読みやすさを優先。
   ============================================================ */
:root {
  --bg: #05070f;
  --bg-soft: #0b1020;
  --ink: #e8ecf6;
  --ink-soft: #aab4cf;
  --line: rgba(140, 170, 255, 0.16);
  --blue: #5b8cff;
  --violet: #9b6bff;
  --teal: #45e0c4;
  --maxw: 1080px;
  --radius: 14px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: radial-gradient(1200px 800px at 70% -10%, rgba(91, 140, 255, 0.10), transparent 60%),
              radial-gradient(1000px 700px at 10% 110%, rgba(155, 107, 255, 0.08), transparent 60%),
              var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, "Hiragino Sans", "Noto Sans JP", "Segoe UI", sans-serif;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 8px; top: -48px; z-index: 100;
  background: var(--bg-soft); color: var(--ink); padding: 10px 16px;
  border: 1px solid var(--line); border-radius: 8px; transition: top .15s;
}
.skip-link:focus { top: 8px; }

/* ヘッダー */
.site-header {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(8px);
  background: rgba(5, 7, 15, 0.72);
  border-bottom: 1px solid var(--line);
}
.site-header__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 12px 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 800; }
.brand__mark {
  width: 18px; height: 18px; border-radius: 50%;
  background: radial-gradient(circle at 40% 35%, var(--teal), var(--blue) 70%);
  box-shadow: 0 0 12px rgba(91, 140, 255, 0.6);
}
.site-nav { display: flex; gap: 18px; font-size: 0.92rem; }
.site-nav a { color: var(--ink-soft); }
.site-nav a[aria-current="page"] { color: var(--ink); }
.site-nav a:hover { color: var(--ink); text-decoration: none; }

/* メイン枠 */
main { max-width: var(--maxw); margin: 0 auto; padding: 32px 20px 64px; }
.guide { display: block; }

/* ヒーロー */
.guide-hero { padding: 24px 0 8px; border-bottom: 1px solid var(--line); margin-bottom: 28px; }
.guide-hero__title {
  font-size: clamp(1.7rem, 4.5vw, 2.8rem); font-weight: 800; line-height: 1.35; margin: 0 0 16px;
}
.guide-summary {
  font-size: clamp(1rem, 2.4vw, 1.18rem); color: var(--ink-soft); max-width: 64ch; margin: 0;
}

/* パンくず */
.breadcrumbs { margin-bottom: 18px; font-size: 0.85rem; color: var(--ink-soft); }
.breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px 10px; padding: 0; margin: 0; }
.breadcrumbs li::after { content: "›"; margin-left: 10px; color: rgba(170, 180, 207, 0.5); }
.breadcrumbs li:last-child::after { content: ""; }
.breadcrumbs a { color: var(--ink-soft); }

/* 視覚ステージ */
.visual-section { margin: 28px 0; }
.visual-stage {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(11, 16, 32, 0.6), rgba(5, 7, 15, 0.6));
  padding: 22px; margin-bottom: 16px;
}
.visual-stage__caption { font-size: 0.82rem; color: var(--ink-soft); margin: 14px 0 0; }
.visual-stage__steps { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.pc-step {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px;
  border: 1px solid var(--line); border-radius: 999px; font-size: 0.85rem; color: var(--ink-soft);
}
.pc-step__num {
  width: 20px; height: 20px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(91, 140, 255, 0.18); color: var(--blue); font-size: 0.72rem; font-weight: 700;
}
.path-compare { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.path-col { border-radius: 10px; padding: 14px; }
.path-col--cloud { background: rgba(155, 107, 255, 0.08); border: 1px solid rgba(155, 107, 255, 0.25); }
.path-col--local { background: rgba(69, 224, 196, 0.08); border: 1px solid rgba(69, 224, 196, 0.25); }
.path-col h4 { margin: 0 0 8px; font-size: 0.95rem; }
.path-col ol { margin: 0; padding-left: 1.1em; display: flex; flex-direction: column; gap: 6px; font-size: 0.88rem; color: var(--ink-soft); }

/* パイプライン */
.pipeline { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 12px; counter-reset: step; }
.pipe-step {
  flex: 1 1 160px; border: 1px solid var(--line); border-radius: 10px; padding: 14px;
  background: rgba(11, 16, 32, 0.5); cursor: pointer; outline: none;
}
.pipe-step:focus-visible, .pipe-step[aria-pressed="true"] { border-color: var(--blue); box-shadow: 0 0 0 2px rgba(91, 140, 255, 0.35); }
.pipe-step__num {
  display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%;
  background: rgba(91, 140, 255, 0.18); color: var(--blue); font-size: 0.75rem; font-weight: 700; margin-bottom: 6px;
}
.pipe-step__title { display: block; font-weight: 700; margin-bottom: 4px; }
.pipe-step__desc { display: block; font-size: 0.85rem; color: var(--ink-soft); }
.pipeline__live { min-height: 1.4em; color: var(--teal); font-size: 0.9rem; margin: 12px 0 0; }

/* テキスト同等物 */
.text-equivalent { border-left: 3px solid var(--teal); padding: 4px 16px; margin: 8px 0 24px; }
.text-equivalent ul { margin: 0; padding-left: 1.2em; display: flex; flex-direction: column; gap: 6px; color: var(--ink-soft); font-size: 0.92rem; }

/* 比較表 */
.comparison, .compare-roles-wrap { margin: 28px 0; overflow-x: auto; }
.comparison__table, .compare-roles {
  width: 100%; border-collapse: collapse; font-size: 0.92rem; overflow: hidden; border-radius: 10px;
}
.comparison__table th, .comparison__table td,
.compare-roles th, .compare-roles td {
  border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top;
}
.comparison__table thead th, .compare-roles thead th { background: rgba(91, 140, 255, 0.12); }
.compare-roles th[scope="row"] { color: var(--ink-soft); }

/* 用語 */
.terms dl { display: grid; grid-template-columns: 1fr; gap: 10px; margin: 14px 0; }
.terms dt { font-weight: 700; color: var(--teal); }
.terms dd { margin: 2px 0 0; color: var(--ink-soft); }

/* 向いている場面 */
.good-for__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 12px; }
.good-for__col { border: 1px solid var(--line); border-radius: 10px; padding: 14px; background: rgba(11, 16, 32, 0.4); }
.good-for__col h3 { margin: 0 0 8px; font-size: 1rem; }
.good-for__col ul { margin: 0; padding-left: 1.2em; color: var(--ink-soft); display: flex; flex-direction: column; gap: 4px; }

/* 注意点 */
.notes ul { margin: 12px 0; padding-left: 1.3em; display: flex; flex-direction: column; gap: 6px; color: var(--ink-soft); }

/* 決断ナビ */
.decision { border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin: 28px 0; background: rgba(11, 16, 32, 0.4); }
.decision__note { font-size: 0.85rem; color: var(--ink-soft); margin: 0 0 14px; }
.decision__list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 14px; }
.decision-q { border-top: 1px solid var(--line); padding-top: 14px; }
.decision-q__text { font-weight: 700; margin: 0 0 8px; }
.decision-q__actions { display: flex; gap: 10px; }
.decision-btn {
  border: 1px solid var(--blue); background: rgba(91, 140, 255, 0.12); color: var(--ink);
  padding: 8px 20px; border-radius: 8px; cursor: pointer; font-size: 0.9rem;
}
.decision-btn:hover { background: rgba(91, 140, 255, 0.24); }
.decision-q__hint { font-size: 0.82rem; color: var(--ink-soft); margin: 8px 0 0; }
.decision__result {
  margin-top: 16px; padding: 14px; border-radius: 10px; background: rgba(69, 224, 196, 0.1);
  border: 1px solid rgba(69, 224, 196, 0.3); font-weight: 700; min-height: 1.2em;
}
.decision__reset { margin-top: 12px; background: none; border: 1px solid var(--line); color: var(--ink-soft); padding: 6px 14px; border-radius: 8px; cursor: pointer; }

/* Compass CTA */
.compass-cta { border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin: 28px 0; background: rgba(155, 107, 255, 0.06); }
.compass-cta__title { margin: 0 0 12px; font-size: 1.1rem; }
.compass-cta__list { margin: 0; padding-left: 1.2em; display: flex; flex-direction: column; gap: 8px; }

/* 出典 */
.source-notes { border-top: 1px solid var(--line); margin-top: 32px; padding-top: 20px; color: var(--ink-soft); font-size: 0.88rem; overflow-wrap: anywhere; }
.source-notes__title { font-size: 1rem; color: var(--ink); }
.source-notes__list { padding-left: 1.2em; margin: 8px 0; }
.source-notes__list a { overflow-wrap: anywhere; word-break: break-all; }
.source-notes__meta { font-weight: 700; color: var(--ink); }

/* ハブカード */
.guide-cards { list-style: none; padding: 0; margin: 0; display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.guide-card { border: 1px solid var(--line); border-radius: var(--radius); background: rgba(11, 16, 32, 0.5); overflow: hidden; transition: transform .15s, border-color .15s; }
.guide-card:hover { transform: translateY(-3px); border-color: var(--blue); }
.guide-card__link { display: block; padding: 20px; color: var(--ink); }
.guide-card__link:hover { text-decoration: none; }
.guide-card__title { margin: 0 0 8px; font-size: 1.15rem; }
.guide-card__summary { margin: 0 0 12px; color: var(--ink-soft); font-size: 0.92rem; }
.guide-card__learn { margin: 0 0 12px; padding-left: 1.1em; color: var(--ink-soft); font-size: 0.85rem; display: flex; flex-direction: column; gap: 3px; }
.guide-card__cta { color: var(--teal); font-weight: 700; font-size: 0.9rem; }
.guide-hub__order { color: var(--ink-soft); font-size: 0.9rem; margin-top: 12px; }

/* ハブ：グループ（BEGIN / CHOOSE / FIX） */
.hub-group { margin: 28px 0; }
.hub-group__head { display: flex; align-items: baseline; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; border-bottom: 1px solid var(--line); padding-bottom: 10px; }
.hub-group__label { font-weight: 800; letter-spacing: 0.06em; color: var(--blue); font-size: 1.05rem; }
.hub-group__jp { color: var(--ink); font-weight: 700; font-size: 0.95rem; }
.hub-group__desc { flex-basis: 100%; margin: 4px 0 0; color: var(--ink-soft); font-size: 0.88rem; }

/* カード：glyph / intent / compass */
.guide-card__glyph { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: 9px; background: rgba(91, 140, 255, 0.12); color: var(--blue); font-size: 1.2rem; margin-bottom: 10px; }
.guide-card__intent { margin: 0 0 10px; color: var(--teal); font-size: 0.82rem; font-weight: 600; }
.guide-card__compass { display: inline-block; margin: 0 20px 20px; color: var(--violet); font-size: 0.82rem; font-weight: 600; }
.guide-card__compass:hover { text-decoration: underline; }

/* ハブ：目的別選び方 */
.hub-purpose { margin: 28px 0; }
.hub-purpose__list { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.hub-purpose__list li { margin: 0; }
.hub-purpose__list a {
  display: inline-block; padding: 10px 18px; border: 1px solid var(--line);
  border-radius: 999px; color: var(--ink); font-size: 0.92rem;
  transition: border-color .15s, color .15s;
}
.hub-purpose__list a:hover,
.hub-purpose__list a:focus-visible { border-color: var(--blue); color: #fff; }

/* ハブ：本編（トップ）への導線 */
.hub-top { margin: 28px 0 8px; padding: 16px 20px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(11, 16, 32, 0.4); }
.hub-top p { margin: 0; color: var(--ink-soft); font-size: 0.95rem; }
.hub-top a { color: var(--teal); font-weight: 700; }

/* ガイド：関連ガイド導線 */
.related-guides { margin: 28px 0; border-top: 1px solid var(--line); padding-top: 20px; }
.related-guides__list { list-style: none; padding: 0; margin: 8px 0 0; display: flex; flex-direction: column; gap: 8px; }
.related-guides__list a { color: var(--teal); text-decoration: none; border-bottom: 1px solid rgba(79, 216, 200, 0.35); padding-bottom: 2px; }
.related-guides__list a:hover,
.related-guides__list a:focus-visible { color: #fff; border-bottom-color: var(--teal); }

/* 404 */
.notfound { text-align: center; padding: 48px 0; }
.notfound__title { font-size: clamp(1.6rem, 5vw, 2.4rem); margin: 0 0 12px; }
.notfound__text { color: var(--ink-soft); }
.notfound__nav { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-top: 20px; }
.notfound__nav a { padding: 10px 18px; border: 1px solid var(--line); border-radius: 8px; }

/* フッター */
.site-footer { border-top: 1px solid var(--line); margin-top: 48px; }
.site-footer__inner { max-width: var(--maxw); margin: 0 auto; padding: 28px 20px; color: var(--ink-soft); font-size: 0.85rem; }
.site-footer__brand { font-weight: 800; color: var(--ink); display: inline-flex; align-items: center; gap: 8px; margin: 0 0 12px; }
.site-footer__nav { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 12px; }
.site-footer__nav a { color: var(--ink-soft); }

/* focus */
:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

/* モバイル */
@media (max-width: 640px) {
  .path-compare { grid-template-columns: 1fr; }
  .good-for__grid { grid-template-columns: 1fr; }
  .site-nav { gap: 12px; font-size: 0.85rem; }
}

/* forced-colors */
@media (forced-colors: active) {
  .visual-stage, .pipe-step, .guide-card, .decision, .compass-cta { border: 1px solid CanvasText; }
}

/* reduced-motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}

/* モバイル（狭い幅）で比較表を収める */
@media (max-width: 400px) {
  .comparison__table, .compare-roles { font-size: 0.82rem; }
  .comparison__table th, .comparison__table td,
  .compare-roles th, .compare-roles td { padding: 7px 8px; }
  .path-compare { grid-template-columns: 1fr; }
  .good-for__grid { grid-template-columns: 1fr; }
}

/* ===== GGUF / 量子化マップ ===== */
.qq-flow { list-style: none; margin: 0 0 12px; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; counter-reset: qq; }
.qq-step { flex: 1 1 140px; background: rgba(91, 140, 255, 0.07); border: 1px solid rgba(91, 140, 255, 0.25); border-radius: 10px; padding: 12px 14px; overflow-wrap: anywhere; }
.qq-step__num { display: inline-flex; width: 24px; height: 24px; align-items: center; justify-content: center; border-radius: 50%; background: var(--blue, #5b8cff); color: #fff; font-weight: 700; margin-right: 8px; }
.qq-step__name { font-weight: 700; }
.qq-step__desc { display: block; margin-top: 6px; color: var(--ink-soft); font-size: 0.9rem; }

.quant-selector { margin: 28px 0; }
.quant-selector__table-wrap { overflow-x: auto; margin: 0 0 14px; }
.quant-selector__levels { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0; }
.qq-level { font: inherit; font-weight: 700; padding: 10px 16px; border-radius: 999px; border: 1px solid rgba(91, 140, 255, 0.4); background: transparent; color: var(--ink); cursor: pointer; }
.qq-level.is-active { background: var(--blue, #5b8cff); color: #fff; border-color: var(--blue, #5b8cff); }
.qq-level:focus-visible { outline: 3px solid var(--teal, #4fd2c8); outline-offset: 2px; }
.quant-selector__live { min-height: 1.4em; margin: 8px 0 14px; font-weight: 600; color: var(--teal, #4fd2c8); overflow-wrap: anywhere; }
.quant-selector__table { width: 100%; border-collapse: collapse; margin: 0 0 14px; }
.quant-selector__table th, .quant-selector__table td { border: 1px solid rgba(91, 140, 255, 0.2); padding: 8px 10px; text-align: left; font-size: 0.92rem; }
.quant-selector__table thead th { background: rgba(91, 140, 255, 0.12); }
.quant-selector__notes { margin: 0; padding-left: 1.2em; color: var(--ink-soft); display: flex; flex-direction: column; gap: 6px; }
.research-note { margin: 28px 0; border: 1px dashed rgba(127, 138, 166, 0.5); border-radius: 12px; padding: 18px 20px; background: rgba(127, 138, 166, 0.06); overflow-wrap: anywhere; }
.research-note__list { list-style: none; margin: 12px 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.rn-paper__claim { margin: 0; font-weight: 600; overflow-wrap: anywhere; }
.rn-paper__cond, .rn-paper__cite { margin: 4px 0 0; font-size: 0.86rem; color: var(--ink-soft); overflow-wrap: anywhere; }
.research-note__interpret { margin: 12px 0 6px; }
.research-note__rule { margin: 6px 0 0; font-size: 0.84rem; color: var(--ink-soft); }

/* 狭い画面で比較表を収める */
@media (max-width: 400px) {
  .quant-selector__table { font-size: 0.78rem; }
  .quant-selector__table th, .quant-selector__table td { padding: 6px 6px; }
  .qq-step { flex-basis: 100%; }
}

@media (forced-colors: active) {
  .qq-level, .quant-selector__table th, .quant-selector__table td, .research-note { border: 1px solid CanvasText; }
}