/* ずんだマネー計算ツール - 共通スタイル (外部フォント・外部リソースなし) */
:root {
  --zunda: #6cbf3c;
  --zunda-dark: #3f8a1e;
  --zunda-deep: #2b5f14;
  --zunda-pale: #eef8e6;
  --zunda-soft: #dff0d2;
  --ink: #23301c;
  --muted: #5d6b55;
  --line: #cfe3c0;
  --warn-bg: #fff6df;
  --warn-line: #f0c75e;
  --bad: #c0392b;
  --card: #ffffff;
  --bg: #f7fbf3;
  --radius: 14px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Meiryo", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
}
a { color: var(--zunda-dark); }
a:hover { color: var(--zunda-deep); }

.site-header {
  background: linear-gradient(135deg, var(--zunda) 0%, var(--zunda-dark) 100%);
  color: #fff;
  padding: 14px 16px;
}
.site-header .inner { max-width: 760px; margin: 0 auto; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.site-header a.brand { color: #fff; text-decoration: none; font-weight: 700; font-size: 1.1rem; display: flex; align-items: center; gap: 8px; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 50%;
  background: #c8ef9b; border: 3px solid #fff; display: inline-block; position: relative;
}
.brand-mark::after { content: ""; position: absolute; left: 6px; top: 7px; width: 12px; height: 8px; border-radius: 50%; background: var(--zunda-dark); }
.site-header nav { margin-left: auto; display: flex; gap: 12px; flex-wrap: wrap; font-size: .9rem; }
.site-header nav a { color: #fff; text-decoration: none; opacity: .92; }
.site-header nav a:hover { text-decoration: underline; }

main { max-width: 760px; margin: 0 auto; padding: 16px; }
h1 { font-size: 1.45rem; margin: 8px 0 4px; color: var(--zunda-deep); line-height: 1.4; }
h2 { font-size: 1.15rem; margin: 28px 0 8px; color: var(--zunda-deep); border-left: 6px solid var(--zunda); padding-left: 10px; }
h3 { font-size: 1rem; margin: 18px 0 6px; }
.lead { color: var(--muted); margin-top: 0; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  margin: 14px 0;
  box-shadow: 0 2px 0 rgba(63, 138, 30, .06);
}

form .row { margin-bottom: 14px; }
label { display: block; font-weight: 700; margin-bottom: 4px; }
.hint { font-size: .85rem; color: var(--muted); font-weight: 400; }
input[type="number"], select {
  width: 100%;
  font-size: 1.05rem;
  padding: 10px 12px;
  border: 2px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
}
input[type="number"]:focus, select:focus { outline: none; border-color: var(--zunda); }
.check { display: flex; gap: 8px; align-items: flex-start; font-weight: 400; margin-bottom: 8px; }
.check input { margin-top: 6px; width: 18px; height: 18px; accent-color: var(--zunda-dark); }
.unit-wrap { display: flex; align-items: center; gap: 8px; }
.unit-wrap span { white-space: nowrap; color: var(--muted); }

button, .btn {
  display: inline-block;
  background: var(--zunda-dark);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 12px 22px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
}
button:hover, .btn:hover { background: var(--zunda-deep); color: #fff; }

.result-big {
  text-align: center;
  background: var(--zunda-pale);
  border-radius: var(--radius);
  padding: 14px;
  margin: 10px 0 14px;
}
.result-big .label { font-size: .9rem; color: var(--muted); }
.result-big .value { font-size: 1.9rem; font-weight: 800; color: var(--zunda-deep); line-height: 1.3; }
.result-big .sub { font-size: .95rem; }

.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; font-size: .95rem; }
th, td { border-bottom: 1px solid var(--line); padding: 8px 6px; text-align: right; white-space: nowrap; }
th:first-child, td:first-child { text-align: left; white-space: normal; }
thead th { background: var(--zunda-soft); color: var(--zunda-deep); }
tr.total td { font-weight: 800; background: var(--zunda-pale); }

.note {
  background: var(--warn-bg);
  border: 1px solid var(--warn-line);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: .88rem;
  margin: 12px 0;
}
.note ul { margin: 4px 0; padding-left: 1.2em; }
.badge { display: inline-block; font-size: .75rem; padding: 1px 8px; border-radius: 999px; background: var(--zunda-soft); color: var(--zunda-deep); font-weight: 700; vertical-align: middle; }
.badge.warn { background: #ffe9b3; color: #7a5200; }
.badge.bad { background: #fde0dc; color: var(--bad); }

.tool-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.tool-list a {
  display: block; text-decoration: none; color: var(--ink);
  background: #fff; border: 2px solid var(--line); border-radius: var(--radius); padding: 14px 16px;
}
.tool-list a:hover { border-color: var(--zunda); }
.tool-list .t { font-weight: 800; color: var(--zunda-deep); font-size: 1.08rem; }
.tool-list .d { font-size: .9rem; color: var(--muted); }

.wall { border-left: 6px solid var(--line); padding: 8px 12px; margin: 10px 0; background: #fff; border-radius: 0 10px 10px 0; }
.wall.over { border-left-color: var(--zunda-dark); background: var(--zunda-pale); }
.wall .amt { font-weight: 800; font-size: 1.05rem; }

.disclaimer { font-size: .85rem; color: var(--muted); border-top: 1px dashed var(--line); margin-top: 24px; padding-top: 12px; }

.affiliate {
  border: 1px dashed var(--zunda);
  border-radius: 10px;
  padding: 10px 12px;
  margin: 20px 0 8px;
  font-size: .9rem;
  background: #fff;
}
.affiliate .pr { font-size: .75rem; color: var(--muted); }

.site-footer { background: var(--zunda-deep); color: #e8f5dc; font-size: .82rem; padding: 18px 16px 28px; margin-top: 28px; }
.site-footer .inner { max-width: 760px; margin: 0 auto; }
.site-footer a { color: #fff; }

/* ---- added 2026-10-17: breadcrumbs, articles, examples, FAQ, footer links ---- */
.crumb { font-size: .8rem; color: var(--muted); margin: 0 0 6px; }
.crumb a { color: var(--muted); }
input[type="text"] { width: 100%; font-size: 1.05rem; padding: 10px 12px; border: 2px solid var(--line); border-radius: 10px; }
.radio-row { display: flex; gap: 16px; flex-wrap: wrap; }
.radio-row label { font-weight: 400; display: flex; gap: 6px; align-items: center; }
.example { background: #fff; border: 1px solid var(--line); border-left: 6px solid var(--zunda); border-radius: 0 10px 10px 0; padding: 10px 14px; margin: 12px 0; }
.example .ex-title { font-weight: 800; color: var(--zunda-deep); }
.example ol, .example ul { margin: 4px 0; padding-left: 1.3em; }
.faq details { background: #fff; border: 1px solid var(--line); border-radius: 10px; margin: 8px 0; padding: 0 14px; }
/* FAQ MARK 2026-10-22: ▶ が枠の線に重なるため、印を枠の内側に描く */
.faq summary { cursor: pointer; font-weight: 700; padding: 10px 0 10px 1.1em; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "\25B6"; position: absolute; left: 0; top: 10px; width: 1em; color: var(--zunda-deep); transform: scale(.7); transform-origin: left center; }
.faq details[open] summary::before { content: "\25BC"; }
.faq details[open] summary { border-bottom: 1px dashed var(--line); margin-bottom: 6px; }
.faq details p { margin: 6px 0 12px; }
.article p { margin: 10px 0; }
.article ul, .article ol { padding-left: 1.3em; }
.article li { margin: 4px 0; }
.point { background: var(--zunda-pale); border-radius: 10px; padding: 10px 14px; margin: 14px 0; }
.point strong:first-child { color: var(--zunda-deep); }
.related { margin-top: 24px; }
.related ul { padding-left: 1.2em; margin: 6px 0; }
.toc { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 8px 14px; font-size: .92rem; }
.toc ol { margin: 4px 0; padding-left: 1.3em; }
.site-footer .foot-grid { display: grid; gap: 4px 20px; margin-bottom: 12px; }
.site-footer .foot-h { font-weight: 800; color: #fff; margin: 10px 0 4px; font-size: .9rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin: 3px 0; }
.site-footer .foot-meta { border-top: 1px solid rgba(255,255,255,.2); padding-top: 10px; }
.hub-group { margin-bottom: 8px; }

/* ---- added 2026-10-18: share buttons, countdown, related tools ---- */
.share { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 12px 0 2px; padding-top: 10px; border-top: 1px dashed var(--line); }
.share-label { font-weight: 700; font-size: .9rem; color: var(--zunda-deep); }
.share-btn { display: inline-block; color: #fff; text-decoration: none; font-weight: 700; font-size: .9rem; padding: 7px 14px; border-radius: 999px; }
.share-btn:hover { color: #fff; opacity: .88; }
.share-x { background: #111; }
.share-line { background: #06c755; }
.share-note { flex-basis: 100%; font-size: .75rem; color: var(--muted); }
.countdown { background: #fff; border: 2px solid var(--zunda); border-radius: 10px; padding: 10px 12px; margin: 10px 0; font-size: .92rem; }
.countdown .cd-num { font-size: 1.4rem; font-weight: 800; color: var(--zunda-deep); }
.related-tools .tool-list { margin-top: 8px; }
.note ol { margin: 4px 0; padding-left: 1.3em; }

@media (min-width: 640px) {
  .grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
  h1 { font-size: 1.7rem; }
  .site-footer .foot-grid { grid-template-columns: 1fr 1fr 1fr; }
}

/* ---- added 2026-10-21: related books (Amazon associate) ---- */
.related-books .rb-h { font-weight: 800; margin: 6px 0; }
.related-books .book-list { list-style: none; padding: 0; margin: 0; }
.related-books .book-list li { margin: 6px 0; padding: 8px 10px; background: var(--zunda-pale); border-radius: 8px; overflow-wrap: anywhere; }
.related-books .book-list a { font-weight: 700; }
.related-books .book-list .d { display: block; font-size: .82rem; color: var(--muted); margin-top: 2px; }

/* ---- added 2026-10-21: A8.net text ads ---- */
.a8-ads .book-list img { width: 1px; height: 1px; border: 0; vertical-align: top; }

/* ---- added 2026-10-21: articles / feature pages ---- */
.post-meta { font-size: .82rem; color: var(--muted); margin: 0 0 10px; }
.post-meta time { font-weight: 700; }
.table-text td, .table-text th { white-space: normal; text-align: left; vertical-align: top; }
.table-num td:not(:first-child), .table-num th:not(:first-child) { text-align: right; }
.checklist { list-style: none; padding-left: 0 !important; }
.checklist li { position: relative; padding: 8px 10px 8px 38px; margin: 8px 0; background: #fff; border: 1px solid var(--line); border-radius: 10px; }
.checklist li::before { content: ""; position: absolute; left: 10px; top: 12px; width: 18px; height: 18px; border: 2px solid var(--zunda-dark); border-radius: 4px; background: #fff; }
.checklist .src { display: block; font-size: .78rem; color: var(--muted); }
blockquote.quote { margin: 10px 0; padding: 8px 12px; border-left: 4px solid var(--line); background: #fff; font-size: .92rem; }
blockquote.quote cite { display: block; font-size: .78rem; color: var(--muted); font-style: normal; margin-top: 4px; }
.ai-note { font-size: .8rem; color: var(--muted); background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px; margin: 16px 0 0; }
.article-list .date { font-size: .8rem; color: var(--muted); font-weight: 400; }
main a, main td, main li { overflow-wrap: anywhere; }