/* 給与台帳の紙(わずかに緑がかった罫線紙)と、確定の「済」印だけに朱色を使う。数字は等幅でそろえる */
:root {
  --paper: #f6f8f5;
  --sheet: #ffffff;
  --ink: #1e2a27;
  --ink-soft: #55625e;
  --rule: #d5ddd8;
  --rule-strong: #aebbb4;
  --accent: #1d5c52;
  --accent-ink: #ffffff;
  --accent-soft: #e3eeea;
  --panel: #ecf2ef;
  --stamp: #c23b22;
  --warn-bg: #fff6e0;
  --warn-ink: #7a5300;
  --font-display: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", sans-serif;
  --font-body: "BIZ UDPGothic", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  --font-num: "BIZ UDGothic", "BIZ UDPGothic", ui-monospace, monospace;
  --radius: 6px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #141a18; --sheet: #1b2321; --ink: #e4ebe8; --ink-soft: #a2b0ab; --rule: #2e3a37; --rule-strong: #46554f;
    --accent: #6fc0ae; --accent-ink: #0d1a17; --accent-soft: #223430; --panel: #1f2a27; --stamp: #f07a62; --warn-bg: #3a2f14; --warn-ink: #f3d48a;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #141a18; --sheet: #1b2321; --ink: #e4ebe8; --ink-soft: #a2b0ab; --rule: #2e3a37; --rule-strong: #46554f;
  --accent: #6fc0ae; --accent-ink: #0d1a17; --accent-soft: #223430; --panel: #1f2a27; --stamp: #f07a62; --warn-bg: #3a2f14; --warn-ink: #f3d48a;
  color-scheme: dark;
}

/* 解説ページ(トップ・月別・用語集)の見た目。色・字体の変数は style.css の先頭(:root)をビルド時に前に付ける */
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--font-body); font-size: 16px; line-height: 1.85; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.4; text-wrap: balance; word-break: auto-phrase; }
a { color: var(--accent); }
.in, .site-main { max-width: 860px; margin: 0 auto; padding-inline: 16px; }

.site-top { background: var(--sheet); border-bottom: 1px solid var(--rule); }
.site-top .in { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 6px 16px; padding-block: 10px; }
.brand { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-display); font-weight: 700; color: var(--ink); text-decoration: none; font-size: 1.05rem; }
.site-nav { display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: .9rem; }
.site-nav a { color: var(--ink-soft); text-decoration: none; padding-block: 4px; border-bottom: 2px solid transparent; }
.site-nav a[aria-current="page"], .site-nav a:hover { color: var(--accent); border-bottom-color: var(--accent); }

.site-main { padding-block: 20px 40px; }
.crumbs { font-size: .8rem; color: var(--ink-soft); margin-bottom: 12px; }
.crumbs a { color: var(--ink-soft); }

.doc { background: var(--sheet); border: 1px solid var(--rule); border-radius: 2px; padding: 24px 24px 30px; }
.doc h1 { font-size: 1.55rem; margin: 0 0 6px; }
.reading { display: block; font-family: var(--font-body); font-weight: 400; font-size: .8rem; line-height: 1.4; color: var(--ink-soft); letter-spacing: .05em; }
.doc h1 .reading { margin-bottom: 2px; }
.term-list .reading { font-size: .75rem; }
.doc h2 { font-size: 1.2rem; margin: 34px 0 12px; padding-bottom: 6px; border-bottom: 2px solid var(--ink); }
.doc h3 { font-size: 1.02rem; margin: 20px 0 6px; }
.doc p { margin: 0 0 12px; }
.doc ul, .doc ol { margin: 0 0 12px; padding-left: 1.4em; }
.doc li { margin-bottom: 4px; }
.doc blockquote { margin: 12px 0; padding: 10px 14px; background: var(--warn-bg); color: var(--warn-ink); border-radius: var(--radius); }
.doc blockquote p { margin: 0; }
.doc code { font-family: var(--font-num); background: var(--panel); padding: 0 4px; border-radius: 3px; }
.updated { font-size: .8rem; color: var(--ink-soft); margin: 0 0 12px; }
.lead { font-size: 1.02rem; padding: 12px 16px; background: var(--accent-soft); border-left: 4px solid var(--accent); border-radius: 0 2px 2px 0; }
.table-wrap { overflow-x: auto; margin: 0 0 14px; -webkit-overflow-scrolling: touch; }
.doc table { border-collapse: collapse; width: 100%; min-width: 480px; font-size: .92rem; }
.doc th, .doc td { border: 1px solid var(--rule); padding: 6px 10px; text-align: left; vertical-align: top; }
.doc th { background: var(--panel); font-weight: 700; }

.btn { display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--rule-strong); background: var(--sheet); border-radius: var(--radius); padding: 8px 16px; color: var(--ink); text-decoration: none; font-weight: 700; white-space: nowrap; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }

.cta { margin-top: 20px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 16px; padding: 16px 18px; border: 1px solid var(--rule-strong); border-radius: 2px; background: var(--sheet); box-shadow: 6px 6px 0 var(--accent-soft); }
.cta p { margin: 0; flex: 1 1 280px; font-size: .92rem; }
.cta strong { display: block; font-family: var(--font-display); }
.pager { display: flex; justify-content: space-between; gap: 8px; margin-top: 16px; font-size: .92rem; }

.month-list, .term-list, .related { list-style: none; padding: 0; margin: 0 0 16px; display: grid; gap: 6px; }
.month-list, .term-list { gap: 0; border-top: 1px solid var(--rule-strong); }
.month-list a, .term-list a { display: grid; grid-template-columns: 4.2em 1fr; gap: 10px; align-items: baseline; padding: 12px 4px; border-bottom: 1px solid var(--rule); text-decoration: none; color: var(--ink); }
.month-list a:hover strong, .term-list a:hover strong, .month-list a:hover .mon { color: var(--accent); text-decoration: underline; }
.month-list .mon { font-family: var(--font-display); font-weight: 700; color: var(--accent); }
.term-list a { grid-template-columns: 1fr; gap: 2px; }
.term-list span { font-size: .85rem; color: var(--ink-soft); }
.kana { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0 4px; }
.kana a { display: inline-block; min-width: 2.4em; text-align: center; padding: 4px 8px; border: 1px solid var(--rule-strong); border-radius: 999px; background: var(--sheet); text-decoration: none; }

/* ---- トップ。主役は「給与明細」1枚。ほかは帳票の罫線だけで静かに並べる ---- */
.top-hero { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 480px); gap: 28px 40px; align-items: center; padding: 28px 0 36px; }
.hero-copy h1 { font-size: clamp(2rem, 1.2rem + 3.2vw, 3rem); line-height: 1.25; letter-spacing: .02em; margin: 0 0 16px; word-break: keep-all; }
.hero-copy > p { margin: 0 0 20px; color: var(--ink-soft); max-width: 30em; }
.hero-act { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; }
.btn.big { padding: 12px 22px; font-size: 1.05rem; }
.hero-sub { font-weight: 700; }
.hero-copy .hero-note { margin: 14px 0 0; font-size: .82rem; }

.slip { position: relative; margin: 0; padding: 0 0 0 112px; }
.slip-char { position: absolute; left: -8px; bottom: -10px; width: 124px; height: auto; z-index: 1; pointer-events: none; }
.slip-sheet { position: relative; background: var(--sheet); border: 1px solid var(--rule-strong); border-radius: 2px; padding: 16px 18px 14px; box-shadow: 6px 6px 0 var(--accent-soft); }
.slip-head { display: flex; align-items: center; justify-content: space-between; border-bottom: 2px solid var(--ink); padding-bottom: 8px; margin-bottom: 12px; }
.slip-title { font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; letter-spacing: .5em; }
/* 日付印: 計算に使った料率の月を示す(朱色はここだけ) */
.slip-stamp { display: grid; place-items: center; width: 58px; height: 58px; border: 2px solid var(--stamp); border-radius: 50%; color: var(--stamp); line-height: 1.05; transform: rotate(-8deg); text-align: center; }
.slip-stamp small { font-size: .62rem; }
.slip-stamp b { font-family: var(--font-num); font-size: .95rem; border-block: 1px solid var(--stamp); padding: 1px 4px; }
.slip-gross { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 12px; padding: 6px 0 10px; font-weight: 700; }
.slip-input { display: flex; align-items: center; gap: 6px; }
.slip-input input { width: 100%; min-width: 0; font-family: var(--font-num); font-size: 1.15rem; text-align: right; padding: 6px 10px; min-height: 44px; border: 1px solid var(--rule-strong); border-bottom: 2px solid var(--accent); border-radius: 2px; background: var(--paper); color: var(--ink); }
.slip-input b { font-weight: 400; }
.slip-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.slip-table caption { text-align: left; font-size: .78rem; color: var(--ink-soft); padding: 4px 0; border-bottom: 1px solid var(--rule-strong); }
.slip-table th, .slip-table td { padding: 5px 0; border-bottom: 1px solid var(--rule); font-weight: 400; text-align: left; }
.slip-table td { text-align: right; font-family: var(--font-num); }
/* 合計は会計の二重線 */
.slip-net { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-top: 10px; padding-top: 8px; border-top: 3px double var(--ink); font-weight: 700; }
.slip-net strong { font-family: var(--font-num); font-size: 1.6rem; color: var(--accent); }
.slip figcaption { margin-top: 10px; font-size: .76rem; color: var(--ink-soft); line-height: 1.6; }

.top-sec { margin: 0 0 36px; }
.top-sec h2 { font-size: 1.15rem; margin: 0 0 10px; padding-bottom: 6px; border-bottom: 2px solid var(--ink); }
.ledger { list-style: none; margin: 0; padding: 0; }
.ledger a { display: grid; grid-template-columns: minmax(0, 15em) minmax(0, 1fr) auto; align-items: baseline; gap: 4px 20px; padding: 14px 4px; border-bottom: 1px solid var(--rule); color: var(--ink); text-decoration: none; }
.ledger a:hover strong, .ledger a:focus-visible strong { color: var(--accent); text-decoration: underline; }
.ledger span { color: var(--ink-soft); font-size: .92rem; }
.ledger em { font-style: normal; font-weight: 700; color: var(--accent); white-space: nowrap; }
.now-month { display: grid; grid-template-columns: auto 1fr; gap: 6px 18px; align-items: center; padding: 14px 4px 16px; color: var(--ink); text-decoration: none; }
.now-num { font-family: var(--font-num); font-size: 3.2rem; line-height: 1; color: var(--accent); }
.now-num small { font-family: var(--font-body); font-size: 1rem; margin-left: 2px; }
.now-text strong { display: block; font-size: 1.05rem; }
.now-text span { color: var(--ink-soft); font-size: .92rem; }
.now-month:hover strong { color: var(--accent); text-decoration: underline; }
.months { display: flex; flex-wrap: wrap; gap: 0; border-top: 1px solid var(--rule); }
.months a { flex: 1 0 calc(100% / 12); min-width: 3.4em; text-align: center; padding: 8px 0; color: var(--ink-soft); text-decoration: none; font-family: var(--font-num); font-size: .9rem; border-bottom: 2px solid transparent; }
.months a:hover { color: var(--accent); }
.months a[aria-current="date"] { color: var(--accent); font-weight: 700; border-bottom-color: var(--accent); }
.terms { display: flex; flex-wrap: wrap; gap: 8px 10px; margin: 0 0 8px; }
.terms a { padding: 6px 12px; border: 1px solid var(--rule-strong); border-radius: 999px; background: var(--sheet); color: var(--ink); text-decoration: none; font-size: .92rem; }
.terms a:hover { border-color: var(--accent); color: var(--accent); }
.more { margin: 0; font-size: .92rem; }
.top-trust { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; margin: 8px 0 12px; border-top: 1px solid var(--rule-strong); }
.top-trust p { margin: 0; padding: 14px 18px 4px 0; font-size: .85rem; color: var(--ink-soft); }
.top-trust p + p { padding-left: 18px; border-left: 1px solid var(--rule); }
.top-trust strong { display: block; color: var(--ink); font-size: .95rem; margin-bottom: 2px; }
a:focus-visible, .btn:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

@media (max-width: 760px) {
  .top-hero { grid-template-columns: 1fr; padding-top: 18px; }
  .slip { position: static; padding-left: 0; max-width: 420px; }
  .slip-char { left: auto; right: 0; bottom: auto; top: 10px; width: 70px; }
  .hero-copy h1 { padding-right: 76px; }
  .slip-sheet { box-shadow: 4px 4px 0 var(--accent-soft); }
  .ledger a { grid-template-columns: 1fr auto; }
  .ledger span { grid-column: 1 / -1; grid-row: 2; }
  .top-trust { grid-template-columns: 1fr; }
  .top-trust p + p { padding-left: 0; border-left: 0; border-top: 1px solid var(--rule); }
  .months a { flex-basis: calc(100% / 6); }
}
@media (max-width: 520px) { .doc { padding: 16px 14px 22px; } }

.site-foot { border-top: 1px solid var(--rule); background: var(--sheet); font-size: .8rem; color: var(--ink-soft); }
.site-foot .in { padding-block: 16px 28px; display: grid; gap: 6px; }
.site-foot p { margin: 0; }
.foot-links { display: flex; flex-wrap: wrap; gap: 4px 16px; }
.ad-slot { display: none; } /* 広告の場所(アドセンスの審査が通ったら表示する) */
.doc .month-list, .doc .term-list, .doc .related { padding-left: 0; }
.notfound { text-align: center; }
.notfound img { display: block; margin: 0 auto 8px; }
.notfound .related { max-width: 320px; margin: 16px auto 0; text-align: left; }

/* かんたん計算(/calc/)のフォームと結果 */
[hidden] { display: none !important; }
.quick { margin: 20px 0 28px; padding: 18px 18px 16px; border: 1px solid var(--rule-strong); border-radius: 2px; background: var(--sheet); box-shadow: 6px 6px 0 var(--accent-soft); }
.quick-loading, .quick-error { margin: 0; color: var(--ink-soft); }
.quick-error { color: var(--warn-ink); }
.qf-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px 18px; }
.qf { display: flex; flex-direction: column; gap: 4px; margin: 0; padding: 0; border: 0; min-width: 0; }
.qf.wide { grid-column: 1 / -1; }
.qf > span:first-child, .qf legend { font-weight: 700; font-size: .9rem; padding: 0; }
.qf small { font-size: .78rem; color: var(--ink-soft); line-height: 1.5; }
.qf input, .qf select { font: inherit; font-size: 16px; min-height: 44px; padding: 8px 10px; border: 1px solid var(--rule-strong); border-radius: 2px; background: var(--paper); color: var(--ink); width: 100%; min-width: 0; }
.qf input { border-bottom: 2px solid var(--accent); }
.qf-yen { display: flex; align-items: center; gap: 6px; }
.qf-yen input { text-align: right; font-family: var(--font-num); }
.qf-yen b { font-weight: 400; white-space: nowrap; }
.qf-radio { display: flex; align-items: center; gap: 8px; padding: 4px 0; font-size: .95rem; }
.qf-radio input { width: auto; min-height: 0; accent-color: var(--accent); }
.qf-checks { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 14px; font-size: .92rem; }
.qf-checks input { margin-right: 6px; accent-color: var(--accent); }
.quick-result { margin-top: 18px; padding-top: 6px; border-top: 2px solid var(--ink); }
.doc .qr-table { min-width: 0; margin: 8px 0 0; font-size: .95rem; }
.doc .qr-table caption { text-align: left; font-size: .78rem; color: var(--ink-soft); padding: 8px 0 4px; border-bottom: 1px solid var(--rule-strong); }
.doc .qr-table th, .doc .qr-table td { border: 0; border-bottom: 1px solid var(--rule); padding: 6px 2px; background: transparent; font-weight: 400; }
.qr-table th small { margin-left: 8px; color: var(--ink-soft); font-family: var(--font-num); }
.doc .qr-table td { text-align: right; font-family: var(--font-num); white-space: nowrap; }
.doc .qr-table tr.sum th, .doc .qr-table tr.sum td { font-weight: 700; }
.doc .qr-table tr.sub th, .doc .qr-table tr.sub td { color: var(--ink-soft); }
/* 合計は会計の二重線(トップの給与明細と同じ) */
.qr-main { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 12px; margin-top: 12px; padding-top: 10px; border-top: 3px double var(--ink); }
.qr-main span { font-weight: 700; }
.qr-main strong { font-family: var(--font-num); font-size: 1.7rem; color: var(--accent); }
.quick-notes { margin: 8px 0; padding-left: 1.2em; font-size: .88rem; }
.quick-notes .ng { color: var(--warn-ink); font-weight: 700; }
.qr-basis { font-size: .8rem; color: var(--ink-soft); margin: 8px 0 0; }

.doc .related { display: flex; flex-wrap: wrap; gap: 8px 10px; }
.doc .related a { display: inline-block; padding: 6px 12px; border: 1px solid var(--rule-strong); border-radius: 999px; background: var(--sheet); color: var(--ink); text-decoration: none; font-size: .92rem; }
.doc .related a:hover { border-color: var(--accent); color: var(--accent); }
.notfound .related { display: grid; }
.term-list strong { font-size: 1rem; }
.doc h2 + .term-list { border-top: 0; }
.month-list .mon { font-family: var(--font-num); font-size: 1.05rem; }
.qf-err { color: var(--stamp); font-weight: 700; }
.qf input[aria-invalid="true"] { border-color: var(--stamp); border-bottom-color: var(--stamp); }
.doc .checked { margin: -6px 0 10px; font-size: .85rem; color: var(--ink-soft); }