:root {
  --bg: #f5f6f4; --surface: #fff; --text: #1f2a26; --muted: #66706b;
  --accent: #2f6f5e; --income: #1f7a4d; --expense: #b23b3b; --border: #dfe3e0;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141816; --surface: #1d2320; --text: #e6ebe8; --muted: #9aa49f;
    --accent: #5fb39a; --income: #5cc28d; --expense: #ec7a7a; --border: #2e3632;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif;
  font-size: 16px; /* iOS のフォーカス時ズーム防止のため 16px 以上 */
  -webkit-text-size-adjust: 100%;
}
.topbar {
  background: var(--accent); color: #fff;
  padding: calc(env(safe-area-inset-top) + 12px) 16px 12px;
}
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.topbar h1 { margin: 0; font-size: 1.2rem; }
.topbar nav { display: flex; align-items: center; gap: 4px; }
.topbar nav a, .topbar nav button {
  color: #fff; text-decoration: none; background: none; border: 0; font: inherit; font-size: .95rem;
  padding: 8px 10px; border-radius: 8px; min-height: 40px; display: inline-flex; align-items: center; cursor: pointer;
}
.topbar nav a[aria-current="page"] { background: rgba(255,255,255,.2); font-weight: 600; }
.topbar nav form { margin: 0; }
.topbar nav button { font-size: .8rem; opacity: .85; }
.container { max-width: 960px; margin: 0 auto; padding: 16px; }
.month-nav { display: flex; align-items: center; justify-content: center; gap: 8px; margin-bottom: 16px; }
.month-nav form { margin: 0; }
.month-nav input { width: auto; text-align: center; }
.btn-ghost {
  display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px;
  border: 1px solid var(--border); border-radius: 8px; background: var(--surface);
  color: var(--text); text-decoration: none; font-size: 1.4rem;
}
a { color: var(--accent); }
.narrow { max-width: 420px; margin: 24px auto; }
.stack { display: grid; gap: 12px; }
.stack label, .entry label { display: grid; gap: 4px; font-size: .85rem; color: var(--muted); }
.alert { background: color-mix(in srgb, var(--expense) 12%, transparent); color: var(--expense); padding: 10px 12px; border-radius: 8px; margin: 0 0 12px; }
.neg { color: var(--expense) !important; }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.crumb { margin: 0 0 12px; }

/* 予算 */
.budget-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.budget-head span { color: var(--muted); font-size: .9rem; }
.budget-head strong { font-size: 1.8rem; font-variant-numeric: tabular-nums; }
.bar { height: 10px; background: var(--bg); border: 1px solid var(--border); border-radius: 99px; overflow: hidden; margin: 10px 0 6px; }
.bar span { display: block; height: 100%; background: var(--accent); }
.bar span.warn { background: #c98a1b; }
.bar span.over { background: var(--expense); }
.bar.thin { height: 6px; margin: 4px 0 0; grid-column: 1 / -1; }
.budget-meta { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 4px 12px; font-size: .85rem; color: var(--muted); }
.per-day { margin: 8px 0 0; font-size: .95rem; }
details { margin-top: 12px; }
summary { cursor: pointer; color: var(--accent); font-size: .9rem; min-height: 32px; }
form.inline { display: flex; gap: 8px; margin-top: 8px; }
form.inline input { flex: 1; }
form.inline button { white-space: nowrap; padding: 0 14px; }
.preview { margin: 12px 0 0; font-weight: 600; color: var(--accent); }

/* カテゴリ別 */
.cat-list, .acc-list { list-style: none; margin: 0; padding: 0; }
.cat-list li { display: grid; grid-template-columns: 1fr auto; padding: 6px 0; }

/* 口座 */
.acc-list li { border-bottom: 1px solid var(--border); padding: 10px 0; }
.acc-list a { display: flex; justify-content: space-between; color: var(--text); text-decoration: none; font-size: 1.05rem; min-height: 32px; align-items: center; }
.acc-list small, .total { color: var(--muted); }
.total { text-align: right; margin: 12px 0 0; }
.total strong { color: var(--text); font-size: 1.2rem; }
.acc-head { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 8px; }
.acc-head h2 { margin: 0; }
.acc-head .current { margin: 0; color: var(--muted); }
.acc-head .current strong { color: var(--text); font-size: 1.4rem; font-variant-numeric: tabular-nums; }

/* 通帳 */
.pb-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.pb-head h2 { margin: 0; }
.table-wrap { overflow-x: auto; margin: 0 -8px; }
table { width: 100%; border-collapse: collapse; font-size: .85rem; }
th, td { padding: 8px 4px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 500; text-align: left; font-size: .75rem; }
th.num { text-align: right; }
td.desc { word-break: break-all; }
td.out { color: var(--expense); }
td.in { color: var(--income); }
tr.carry td, tfoot td { color: var(--muted); }
tfoot td { border-bottom: 0; font-weight: 600; }
tr.ng { background: color-mix(in srgb, var(--expense) 10%, transparent); }
tr.ng small { color: var(--expense); }
tr.row-link { cursor: pointer; }
tr.row-link td:first-child a { color: inherit; text-decoration: none; }
.summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 16px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 10px; }
.card span { display: block; font-size: .8rem; color: var(--muted); }
.card strong { font-size: 1.05rem; font-variant-numeric: tabular-nums; }
.card.income strong { color: var(--income); }
.card.expense strong { color: var(--expense); }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 16px; margin-bottom: 16px; }
.panel h2 { margin: 0 0 12px; font-size: 1rem; }
.entry { display: grid; gap: 12px; }
input, select, button { font: inherit; }
input, select {
  width: 100%; padding: 10px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg); color: var(--text); min-height: 44px;
}
button[type="submit"] {
  min-height: 44px; border: 0; border-radius: 8px; background: var(--accent); color: #fff; cursor: pointer;
}
.tx-list { list-style: none; margin: 0; padding: 0; }
.tx { border-bottom: 1px solid var(--border); }
.tx > a { display: block; padding: 12px 4px; color: inherit; text-decoration: none; }
.tx > a:hover, tr.row-link:hover { background: color-mix(in srgb, var(--accent) 6%, transparent); }
.tx:last-child { border-bottom: 0; }
.tx-main { display: flex; gap: 10px; align-items: baseline; }
.tx-date { color: var(--muted); font-variant-numeric: tabular-nums; }
.tx-amount { margin-left: auto; font-variant-numeric: tabular-nums; }
.tx.income .tx-amount { color: var(--income); }
.tx.expense .tx-amount { color: var(--expense); }
.tx-memo { font-size: .85rem; color: var(--muted); margin-top: 2px; }
.empty { color: var(--muted); margin: 0; }

/* タブレット・PC */
@media (min-width: 768px) {
  .entry { grid-template-columns: 1fr 1.4fr 1fr 2fr auto; align-items: end; }
  .entry button { padding: 0 20px; }
  table { font-size: .95rem; }
  th { font-size: .85rem; }
  th, td { padding: 8px; }
}

/* 通帳入力: スマホでは支払/預りを横並び */
.entry.bank { grid-template-columns: 1fr 1fr; }
.entry.bank > :is(label:nth-child(1), label:nth-child(2), label:nth-child(5), button) { grid-column: 1 / -1; }
td form { margin: 0; }
@media (min-width: 768px) {
  .entry.bank { grid-template-columns: 1fr 2fr 1fr 1fr 1.2fr auto; }
  .entry.bank > * { grid-column: auto !important; }
}

/* 区分（食費/雑費）の切替ボタン */
.segmented { border: 0; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(0, 1fr)); gap: 0; }
.segmented legend { font-size: .85rem; color: var(--muted); padding: 0; margin-bottom: 4px; }
.segmented label { display: block; color: var(--text); font-size: 1rem; }
.segmented input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.segmented span {
  display: flex; align-items: center; justify-content: center; min-height: 44px;
  border: 1px solid var(--border); background: var(--bg); cursor: pointer;
}
.segmented label:first-of-type span { border-radius: 8px 0 0 8px; }
.segmented label:last-of-type span { border-radius: 0 8px 8px 0; border-left: 0; }
.segmented input:checked + span { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.segmented input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }

/* 予算パネル内の区分別合計 */
.cat-sum { max-width: 480px; list-style: none; margin: 12px 0 0; padding: 12px 0 0; border-top: 1px solid var(--border); display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.cat-sum li { display: flex; justify-content: space-between; gap: 8px; }
.cat-sum span { color: var(--muted); }
.notice { margin: 12px 0 0; padding: 10px 12px; border-radius: 8px; background: color-mix(in srgb, #c98a1b 15%, transparent); font-size: .9rem; }

@media (min-width: 768px) {
  #tx-form.entry { grid-template-columns: 1.2fr 1fr 1fr 2fr auto; }
}

/* 編集画面 */
.hint { font-size: .75rem; font-weight: normal; color: var(--muted); margin-left: 8px; }
.narrow-form { max-width: 560px; }
.danger-zone { margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--border); }
button.btn-danger[type="submit"] {
  width: 100%; min-height: 44px; border-radius: 8px; cursor: pointer;
  background: none; border: 1px solid var(--expense); color: var(--expense);
}
@media (min-width: 768px) {
  .entry.bank.edit { grid-template-columns: 1fr 1fr; }
  .entry.bank.edit > :is(label:nth-child(1), label:nth-child(2), label:nth-child(5), button) { grid-column: 1 / -1 !important; }
}