/* キャッシュフローの読み方 練習帳：専用スタイル。
   site.css と衝突しないよう、クラス名はすべて cf- で始め、変数も --cf- で始める。
   公開サイトでは <main class="cf-root"> の中だけに効く。
   有料キット（ローカルで開く版）では <body class="cf-standalone"> で土台も用意する。
   色の組み立ては B/S練習帳（bs.css）と同じ。営業＝青、投資＝茶、財務＝緑。 */
.cf-root, .cf-standalone {
  --cf-bg: #f3f5f7;
  --cf-ink: #1b2631;
  --cf-op: #2a6c8c;
  --cf-inv: #a3691a;
  --cf-fin: #3b7752;
  --cf-alert: #b23b36;
  --cf-surface: color-mix(in srgb, var(--cf-ink) 4%, var(--cf-bg));
  --cf-line: color-mix(in srgb, var(--cf-ink) 16%, var(--cf-bg));
  --cf-muted: color-mix(in srgb, var(--cf-ink) 64%, var(--cf-bg));
  --cf-num: system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Yu Gothic UI", Meiryo, sans-serif;
}
@media (prefers-color-scheme: dark) {
  .cf-root, .cf-standalone {
    --cf-bg: #121820; --cf-ink: #e1e6eb; --cf-op: #6aaed0; --cf-inv: #d8a24c; --cf-fin: #7bbd8f; --cf-alert: #ec7b71;
  }
}

/* ---- キット（単体で開く版）の土台 ---- */
body.cf-standalone {
  margin: 0; background: var(--cf-bg); color: var(--cf-ink);
  font-family: system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", Meiryo, sans-serif;
  font-size: 16px; line-height: 1.8; overflow-wrap: anywhere; -webkit-text-size-adjust: 100%;
}
.cf-standalone *, .cf-standalone *::before, .cf-standalone *::after { box-sizing: border-box; }
.cf-standalone a { color: var(--cf-op); }
.cf-standalone h1 { font-size: 1.5rem; line-height: 1.4; margin: 8px 0 4px; }
.cf-standalone h2 { font-size: 1.2rem; line-height: 1.4; margin: 28px 0 8px; }
.cf-standalone h3 { font-size: 1.05rem; line-height: 1.4; margin: 18px 0 6px; }
.cf-container { max-width: 860px; margin: 0 auto; padding: 12px 16px 40px; }
.cf-kitnav { border-bottom: 1px solid var(--cf-line); background: var(--cf-surface); }
.cf-kitnav-in { max-width: 860px; margin: 0 auto; padding: 8px 16px; display: flex; flex-wrap: wrap; gap: 6px 18px; align-items: center; font-size: .92rem; }
.cf-kitnav-in .cf-kitbrand { font-weight: 700; color: var(--cf-ink); text-decoration: none; margin-right: auto; }
.cf-kitfoot { border-top: 1px solid var(--cf-line); color: var(--cf-muted); font-size: .85rem; }
.cf-kitfoot p { max-width: 860px; margin: 0 auto; padding: 16px; }

/* ---- 共通 ---- */
.cf-root { overflow-wrap: anywhere; }
.cf-root :focus-visible { outline: 3px solid var(--cf-op); outline-offset: 2px; border-radius: 3px; }
.cf-root button { font: inherit; color: inherit; cursor: pointer; white-space: normal; }
.cf-root button:disabled { cursor: default; opacity: .55; }
.cf-num, .cf-n { font-family: var(--cf-num); font-variant-numeric: tabular-nums; }
.cf-crumb { font-size: .875rem; color: var(--cf-muted); margin: 0; }
.cf-fiction { font-size: .88rem; color: var(--cf-muted); border-left: 4px solid var(--cf-inv); padding: 6px 12px; background: var(--cf-surface); margin: 12px 0; }
.cf-lead { font-size: 1.04rem; }
.cf-two { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 14px 0; }
.cf-three { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 14px 0; }
.cf-pointbox { background: var(--cf-surface); border: 1px solid var(--cf-line); border-radius: 8px; padding: 12px 16px; }
.cf-pointbox h3 { margin: 0 0 4px; font-size: 1rem; }
.cf-pointbox p { margin: 0; font-size: .95rem; }
.cf-pointbox.cf-k-op { box-shadow: inset 4px 0 0 var(--cf-op); }
.cf-pointbox.cf-k-inv { box-shadow: inset 4px 0 0 var(--cf-inv); }
.cf-pointbox.cf-k-fin { box-shadow: inset 4px 0 0 var(--cf-fin); }
.cf-tight { padding-left: 1.2em; margin: .4em 0; }
.cf-tight li { margin: .25em 0; }
.cf-c-op { color: var(--cf-op); } .cf-c-inv { color: var(--cf-inv); } .cf-c-fin { color: var(--cf-fin); }
.cf-note { border-left: 4px solid var(--cf-op); background: var(--cf-surface); padding: 8px 14px; margin: 14px 0; font-size: .95rem; }
.cf-note.cf-caution { border-left-color: var(--cf-inv); }
.cf-formula { font-family: var(--cf-num); background: var(--cf-surface); border: 1px solid var(--cf-line); border-radius: 8px; padding: 10px 14px; margin: 10px 0; font-size: 1rem; }
.cf-formula b { font-family: inherit; }
.cf-calc { color: var(--cf-muted); font-size: .95rem; }
.cf-fig { margin: 16px 0; }
.cf-fig figcaption { font-size: .88rem; color: var(--cf-muted); margin-top: 6px; }
.cf-tw { overflow-x: auto; margin: 10px 0; -webkit-overflow-scrolling: touch; }
table.cf-tbl { border-collapse: collapse; width: 100%; font-size: .92rem; }
.cf-tbl th, .cf-tbl td { border-bottom: 1px solid var(--cf-line); padding: 6px 8px; text-align: left; vertical-align: top; }
.cf-tbl th { font-weight: 500; color: var(--cf-muted); font-size: .85rem; white-space: nowrap; }
.cf-tbl td.cf-n, .cf-tbl th.cf-n { text-align: right; white-space: nowrap; }
.cf-tbl tr.cf-sub td { font-weight: 500; background: var(--cf-surface); }
.cf-tbl tr.cf-total td { font-weight: 700; border-top: 2px solid var(--cf-ink); }
.cf-tbl tr.cf-sec td { font-weight: 700; color: var(--cf-muted); font-size: .85rem; padding-top: 12px; }
.cf-tbl tr.cf-hl td { background: color-mix(in srgb, var(--cf-alert) 12%, var(--cf-bg)); }
.cf-tag { display: inline-block; font-size: .75rem; padding: 0 6px; border-radius: 4px; border: 1px solid var(--cf-line); white-space: nowrap; }
.cf-tag.cf-k-op { border-color: var(--cf-op); color: var(--cf-op); }
.cf-neg { color: var(--cf-alert); }

/* ボタン */
.cf-btn { background: var(--cf-ink); color: var(--cf-bg); border: 0; border-radius: 6px; padding: 8px 14px; font-weight: 500; }
.cf-btn-ghost { background: transparent; border: 1px solid var(--cf-line); border-radius: 6px; padding: 6px 12px; font-size: .9rem; }
.cf-btn-ghost:hover { border-color: var(--cf-ink); }
.cf-confirm { margin-top: 8px; padding: 10px; border: 1px solid var(--cf-alert); border-radius: 6px; background: var(--cf-surface); }
.cf-confirm p { margin: 0 0 8px; }
.cf-confirm-row { display: flex; gap: 8px; flex-wrap: wrap; }
.cf-actions { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0; }
.cf-status { font-size: .88rem; color: var(--cf-muted); }

/* 目次 */
.cf-progress { font-size: .9rem; color: var(--cf-muted); display: flex; justify-content: space-between; gap: 8px; }
.cf-prog-bar { height: 8px; background: var(--cf-line); border-radius: 4px; overflow: hidden; margin: 4px 0 14px; }
.cf-prog-bar span { display: block; height: 100%; width: 0; background: var(--cf-fin); transition: width .4s; }
ol.cf-toc { list-style: none; margin: 0; padding: 0; border: 1px solid var(--cf-line); border-radius: 8px; overflow: hidden; }
.cf-toc li + li { border-top: 1px solid var(--cf-line); }
.cf-toc a, .cf-toc .cf-toc-item { display: flex; gap: 10px; align-items: baseline; padding: 10px 14px; text-decoration: none; color: var(--cf-ink); line-height: 1.5; }
.cf-toc a:hover { background: var(--cf-surface); }
.cf-toc .cf-no { font-family: var(--cf-num); color: var(--cf-muted); min-width: 3.2em; }
.cf-toc .cf-desc { display: block; font-size: .85rem; color: var(--cf-muted); }
.cf-toc .cf-st { margin-left: auto; font-size: .75rem; padding: 0 6px; border-radius: 4px; white-space: nowrap; }
.cf-toc .cf-st.cf-done { background: color-mix(in srgb, var(--cf-fin) 22%, var(--cf-bg)); }
.cf-toc .cf-st.cf-paid { border: 1px solid var(--cf-inv); color: var(--cf-inv); }
.cf-toc .cf-locked { color: var(--cf-muted); }

/* 振り分け */
.cf-sort-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 10px; margin: 10px 0; }
.cf-sort-card { border: 1px solid var(--cf-line); border-radius: 8px; padding: 10px; background: var(--cf-surface); }
.cf-sort-card .cf-name { font-weight: 700; line-height: 1.5; }
.cf-sort-btns { display: flex; gap: 4px; flex-wrap: wrap; margin-top: 6px; }
.cf-sort-btns button { border: 1px solid var(--cf-line); background: var(--cf-bg); border-radius: 5px; padding: 3px 8px; font-size: .85rem; }
.cf-sort-btns button[aria-pressed="true"] { border-color: var(--cf-ink); font-weight: 700; }
.cf-sort-fb { font-size: .85rem; margin-top: 6px; line-height: 1.5; }
.cf-good { color: var(--cf-fin); } .cf-bad { color: var(--cf-alert); }
.cf-score { font-weight: 500; }

/* クイズ */
.cf-quiz { margin-top: 32px; border-top: 2px solid var(--cf-ink); padding-top: 6px; }
.cf-quiz-sub { color: var(--cf-muted); font-size: .9rem; }
.cf-quiz-badge { font-size: .85rem; padding: 2px 8px; border-radius: 4px; background: color-mix(in srgb, var(--cf-fin) 22%, var(--cf-bg)); }
fieldset.cf-q { border: 1px solid var(--cf-line); border-radius: 8px; margin: 12px 0; padding: 10px 14px 12px; min-width: 0; }
fieldset.cf-q legend { padding: 0 6px; font-weight: 500; line-height: 1.6; }
.cf-qn { font-family: var(--cf-num); color: var(--cf-muted); margin-right: 8px; }
.cf-opts { display: flex; flex-direction: column; gap: 6px; margin-top: 6px; }
.cf-opt { text-align: left; border: 1px solid var(--cf-line); background: var(--cf-bg); border-radius: 6px; padding: 8px 12px; line-height: 1.5; }
.cf-opt:hover { border-color: var(--cf-ink); }
.cf-opt.cf-is-right { border-color: var(--cf-fin); box-shadow: inset 4px 0 0 var(--cf-fin); }
.cf-opt.cf-is-wrong { border-color: var(--cf-alert); box-shadow: inset 4px 0 0 var(--cf-alert); }
.cf-fb p { margin: .4em 0; font-size: .95rem; }
.cf-quiz-done { font-weight: 700; color: var(--cf-fin); }

/* 前後の課 */
.cf-pager { display: flex; justify-content: space-between; gap: 10px; margin-top: 28px; flex-wrap: wrap; }
.cf-pager a { text-decoration: none; border: 1px solid var(--cf-line); border-radius: 6px; padding: 8px 14px; color: var(--cf-ink); }
.cf-pager a:hover { border-color: var(--cf-ink); }
.cf-paidbox { border: 2px solid var(--cf-inv); border-radius: 8px; padding: 12px 16px; margin: 24px 0 0; }
.cf-paidbox h2 { margin-top: 0; font-size: 1.1rem; }

/* スライダー・切り替えボタン・数字のカード */
.cf-ctrl { display: grid; gap: 14px; margin: 12px 0; padding: 12px 14px; border: 1px solid var(--cf-line); border-radius: 8px; }
.cf-ctrl label { display: block; font-size: .95rem; }
.cf-ctrl input[type=range] { width: 100%; accent-color: var(--cf-op); }
.cf-ctrl .cf-val { font-family: var(--cf-num); font-variant-numeric: tabular-nums; font-weight: 700; }
.cf-seg-btns { display: flex; gap: 6px; flex-wrap: wrap; margin: 8px 0; }
.cf-seg-btns button { border: 1px solid var(--cf-line); background: var(--cf-bg); border-radius: 6px; padding: 5px 12px; font-size: .9rem; }
.cf-seg-btns button[aria-pressed="true"] { background: var(--cf-ink); color: var(--cf-bg); border-color: var(--cf-ink); font-weight: 700; }
.cf-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 10px; margin: 10px 0; }
.cf-mcard { border: 1px solid var(--cf-line); border-radius: 8px; padding: 10px 12px; background: var(--cf-surface); }
.cf-mcard .cf-lab { font-size: .88rem; color: var(--cf-muted); }
.cf-mcard .cf-big { font-family: var(--cf-num); font-variant-numeric: tabular-nums; font-size: 1.5rem; font-weight: 700; line-height: 1.3; }
.cf-mcard .cf-big.cf-big-sm { font-size: 1.2rem; }
.cf-mcard .cf-from { font-size: .82rem; color: var(--cf-muted); font-family: var(--cf-num); }
.cf-mcard.cf-k-op { box-shadow: inset 4px 0 0 var(--cf-op); }
.cf-mcard.cf-k-inv { box-shadow: inset 4px 0 0 var(--cf-inv); }
.cf-mcard.cf-k-fin { box-shadow: inset 4px 0 0 var(--cf-fin); }
.cf-balance { display: flex; flex-wrap: wrap; gap: 6px 12px; align-items: center; border: 2px solid var(--cf-fin); border-radius: 8px; padding: 8px 12px; margin: 10px 0; font-size: .95rem; }
.cf-balance .cf-ok { background: var(--cf-fin); color: var(--cf-bg); border-radius: 4px; padding: 0 8px; font-weight: 700; }
.cf-balance.cf-ng { border-color: var(--cf-alert); }
.cf-balance.cf-ng .cf-ok { background: var(--cf-alert); }

/* ウォーターフォール（第3課） */
.cf-wfwrap { display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; align-items: start; margin-top: 10px; }
.cf-wfwrap .cf-fig { margin: 0; }
.cf-wf { border: 1px solid var(--cf-line); border-radius: 8px; padding: 6px 10px; }
.cf-wf-row { display: grid; grid-template-columns: minmax(0, 10.5em) minmax(0, 1fr) 5em; gap: 8px; align-items: center; padding: 4px 0; border-bottom: 1px dashed var(--cf-line); font-size: .9rem; line-height: 1.4; }
.cf-wf-row:last-child { border-bottom: 0; }
.cf-wf-row .cf-lab small { display: block; color: var(--cf-muted); font-size: .78rem; font-family: var(--cf-num); }
.cf-wf-row.cf-future .cf-lab { color: var(--cf-muted); }
.cf-wf-row.cf-cur { background: color-mix(in srgb, var(--cf-op) 10%, var(--cf-bg)); border-radius: 4px; }
.cf-wf-row.cf-tot { border-top: 2px solid var(--cf-ink); font-weight: 700; }
.cf-wf-row .cf-v { text-align: right; font-family: var(--cf-num); font-variant-numeric: tabular-nums; }
.cf-wf-track { position: relative; height: 22px; }
.cf-wf-zero { position: absolute; top: 0; bottom: 0; width: 1px; background: var(--cf-muted); }
.cf-wf-bar { position: absolute; top: 3px; height: 16px; border-radius: 2px; min-width: 2px; transition: left .3s, width .3s; }
.cf-wf-bar.cf-base { background: color-mix(in srgb, var(--cf-op) 55%, var(--cf-bg)); }
.cf-wf-bar.cf-up { background: color-mix(in srgb, var(--cf-fin) 60%, var(--cf-bg)); }
.cf-wf-bar.cf-down { background: color-mix(in srgb, var(--cf-alert) 55%, var(--cf-bg)); }
.cf-wf-why { border: 2px solid var(--cf-op); border-radius: 8px; padding: 10px 14px; background: var(--cf-surface); font-size: .95rem; }
.cf-wf-why h4 { margin: 0 0 4px; font-size: 1rem; }
.cf-wf-why table { width: 100%; border-collapse: collapse; font-size: .88rem; margin: 6px 0; }
.cf-wf-why td { padding: 2px 0; border-bottom: 1px dashed var(--cf-line); }
.cf-wf-why td.cf-n { text-align: right; white-space: nowrap; }
.cf-wf-ctrl { display: flex; gap: 8px; flex-wrap: wrap; margin: 10px 0; }
.cf-legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: .85rem; margin: 6px 0; }
.cf-legend i { display: inline-block; width: 12px; height: 12px; vertical-align: -1px; margin-right: 4px; }
.cf-legend .cf-lb { background: color-mix(in srgb, var(--cf-op) 55%, var(--cf-bg)); }
.cf-legend .cf-lu { background: color-mix(in srgb, var(--cf-fin) 60%, var(--cf-bg)); }
.cf-legend .cf-ld { background: color-mix(in srgb, var(--cf-alert) 55%, var(--cf-bg)); }

/* CFの型（第7課） */
.cf-sign-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin: 10px 0; }
.cf-sign-btn { border: 1px solid var(--cf-line); background: var(--cf-surface); border-radius: 8px; padding: 8px; text-align: center; line-height: 1.4; }
.cf-sign-btn b { display: block; font-family: var(--cf-num); font-size: 1.4rem; }
.cf-sign-out { border: 2px solid var(--cf-op); border-radius: 8px; padding: 10px 14px; margin: 10px 0; }
.cf-sign-out h4 { margin: 0 0 4px; }

/* 自社診断 */
.cf-sc-head, .cf-sc-row { display: grid; grid-template-columns: minmax(0, 1fr) 8em 8em; gap: 6px 10px; align-items: center; }
.cf-sc-head { font-size: .85rem; color: var(--cf-muted); border-bottom: 1px solid var(--cf-line); padding: 4px 0; }
.cf-sc-head span { text-align: right; }
.cf-sc-row { border-bottom: 1px dashed var(--cf-line); padding: 4px 0; }
.cf-sc-row .cf-lab { font-size: .9rem; line-height: 1.4; }
.cf-sc-in { display: block; }
.cf-sc-cap { display: none; font-size: .78rem; color: var(--cf-muted); }
.cf-sc-row input { width: 100%; text-align: right; font-family: var(--cf-num); font-variant-numeric: tabular-nums; font-size: 1rem; padding: 4px 6px; border: 1px solid var(--cf-line); border-radius: 5px; background: var(--cf-bg); color: var(--cf-ink); }
.cf-sc-row input[aria-invalid="true"] { border-color: var(--cf-alert); }
.cf-sc-group { margin: 14px 0 4px; font-weight: 700; font-size: .95rem; }
.cf-privacy { border: 2px solid var(--cf-op); border-radius: 8px; padding: 10px 14px; margin: 12px 0; }
.cf-privacy p { margin: .2em 0; }

@media (max-width: 760px) {
  .cf-two, .cf-three { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 520px) {
  .cf-wf-row { grid-template-columns: minmax(0, 1fr) 5em; }
  .cf-wf-row .cf-wf-track { grid-column: 1 / -1; grid-row: 2; }
  .cf-sc-head { display: none; }
  .cf-sc-row { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .cf-sc-row .cf-lab { grid-column: 1 / -1; }
  .cf-sc-cap { display: block; }
  .cf-sign-btn b { font-size: 1.2rem; }
}
@media (prefers-reduced-motion: reduce) {
  .cf-root *, .cf-root *::before, .cf-root *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}