/* 數簿 — MUJI 式：米白紙、細線、炭灰字、一種 kraft 牛皮色作 Johnson、大量留白 */
:root {
  --paper: #f3f1ec;
  --paper-2: #ebe8e1;
  --card: #faf9f6;
  --ink: #2c2c2a;
  --ink-2: #5a5955;
  --muted: #8f8c85;
  --line: #d9d5cc;
  --line-2: #e8e5de;
  --chun: #2c2c2a;
  --johnson: #a3845a;
  --johnson-soft: #ede4d6;
  --ok: #5f7a5c;
  --danger: #a4463a;
  --sans: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "PingFang HK", "PingFang TC", "Noto Sans JP", "Noto Sans HK", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--paper); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
}
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; -webkit-tap-highlight-color: transparent; }
input { font: inherit; color: var(--ink); }
h1, h2, h3, p, dl, dd, dt { margin: 0; }
.num { font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }
[hidden] { display: none !important; }

.wrap {
  max-width: 480px;
  margin: 0 auto;
  padding: calc(14px + env(safe-area-inset-top)) 22px calc(110px + env(safe-area-inset-bottom));
}

/* 日文小字標籤 */
.jp {
  display: inline-block;
  margin-right: 8px;
  padding-right: 8px;
  border-right: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.22em;
}
.kicker {
  color: var(--ink-2);
  font-size: 12px;
  letter-spacing: 0.12em;
}

/* 頂部 */
.top { display: flex; justify-content: space-between; align-items: center; height: 32px; }
.back { color: var(--muted); font-size: 11px; letter-spacing: 0.2em; text-decoration: none; }
.back:hover { color: var(--ink); }
.sync { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); font-size: 11px; letter-spacing: 0.12em; }
.sync i { width: 6px; height: 6px; border-radius: 50%; background: var(--line); }
.sync[data-state="on"] i { background: var(--ok); }
.sync[data-state="err"] i { background: var(--danger); }
.sync[data-state="busy"] i { background: var(--johnson); }

/* 主區：找數 */
.hero { padding: 34px 0 26px; border-bottom: 1px solid var(--ink); }
h1 { font-size: 34px; font-weight: 500; letter-spacing: 0.06em; margin: 6px 0 26px; }
.settle { min-height: 72px; }
.settle .lead { color: var(--ink-2); font-size: 13px; letter-spacing: 0.06em; }
.settle .lead b { font-weight: 600; color: var(--ink); }
.settle .amt { display: flex; align-items: baseline; gap: 6px; margin-top: 2px; font-size: 44px; font-weight: 300; letter-spacing: -0.01em; line-height: 1.1; }
.settle .amt small { font-size: 16px; font-weight: 400; color: var(--ink-2); letter-spacing: 0.04em; }
.settle .alt { margin-top: 6px; color: var(--muted); font-size: 12px; letter-spacing: 0.06em; }
.settle .even { font-size: 20px; font-weight: 400; color: var(--ok); }
.settle .empty { color: var(--muted); font-size: 14px; }

.paid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0; margin-top: 26px; border-top: 1px solid var(--line); }
.paid div { padding: 12px 0 0; }
.paid div + div { padding-left: 14px; border-left: 1px solid var(--line); }
.paid dt { color: var(--muted); font-size: 11px; letter-spacing: 0.14em; }
.paid dd { margin-top: 2px; font-size: 16px; font-weight: 500; }
.paid dd.c { color: var(--chun); }
.paid dd.j { color: var(--johnson); }

/* 分頁 */
.tabs { display: flex; gap: 0; border-bottom: 1px solid var(--line); margin-bottom: 22px; }
.tabs button { flex: 1; padding: 14px 0 12px; color: var(--muted); font-size: 14px; letter-spacing: 0.08em; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs button .jp { margin-right: 6px; padding-right: 6px; border-right-color: var(--line-2); font-size: 10px; }
.tabs button[aria-current="page"] { color: var(--ink); border-bottom-color: var(--ink); }
.tabs button:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }

/* 記數列表 */
.day { margin-bottom: 30px; }
.day-head { display: flex; justify-content: space-between; align-items: baseline; padding-bottom: 8px; border-bottom: 1px solid var(--ink); }
.day-head .d { font-size: 13px; letter-spacing: 0.1em; }
.day-head .d .jp { font-size: 10px; }
.day-head .t { font-size: 13px; color: var(--ink-2); }
.row { display: grid; grid-template-columns: 34px 1fr auto; gap: 12px; align-items: center; width: 100%; padding: 13px 0; text-align: left; border-bottom: 1px solid var(--line-2); }
.row:last-child { border-bottom: 0; }
.row .cat { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--ink-2); font-size: 12px; letter-spacing: 0; }
.row .t1 { font-size: 15px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row .t2 { display: flex; align-items: center; gap: 6px; margin-top: 1px; color: var(--muted); font-size: 11.5px; letter-spacing: 0.04em; }
.row .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--chun); flex-shrink: 0; }
.row .dot.j { background: var(--johnson); }
.row .a1 { font-size: 15px; font-weight: 500; text-align: right; }
.row .a2 { color: var(--muted); font-size: 11px; text-align: right; }
.empty-state { padding: 48px 0; color: var(--muted); font-size: 14px; text-align: center; letter-spacing: 0.06em; }

/* 統計 */
.block { margin-bottom: 30px; }
.block h3 { display: flex; align-items: baseline; padding-bottom: 8px; margin-bottom: 4px; border-bottom: 1px solid var(--ink); font-size: 13px; font-weight: 500; letter-spacing: 0.1em; }
.bar { display: grid; grid-template-columns: 64px 1fr 90px; gap: 12px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--line-2); font-size: 13px; }
.bar:last-child { border-bottom: 0; }
.bar .l { color: var(--ink-2); }
.bar .l.c { color: var(--chun); font-weight: 500; }
.bar .l.j { color: var(--johnson); font-weight: 500; }
.bar .tr { height: 4px; background: var(--line-2); }
.bar .fi { height: 100%; background: var(--ink); }
.bar .fi.j { background: var(--johnson); }
.bar .v { text-align: right; }
.bar.wide { grid-template-columns: 1fr 90px; }

/* 設定 */
.set { padding: 18px 0; border-bottom: 1px solid var(--line); }
.set:last-child { border-bottom: 0; }
.set h3 { font-size: 13px; font-weight: 500; letter-spacing: 0.1em; margin-bottom: 6px; }
.set p { color: var(--muted); font-size: 12.5px; line-height: 1.6; }
.set .ctrl { display: flex; gap: 10px; align-items: center; margin-top: 12px; flex-wrap: wrap; }
.set input[inputmode] { width: 88px; padding: 9px 10px; border: 1px solid var(--line); border-radius: 4px; background: var(--card); font-size: 16px; text-align: right; }
.rate-eq { font-size: 14px; color: var(--ink-2); }

/* 按鈕 */
.btn { min-height: 46px; padding: 0 20px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--ink); border-radius: 4px; background: var(--ink); color: var(--paper); font-size: 14px; letter-spacing: 0.1em; }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.ghost.danger { color: var(--danger); }
.btn.sm { min-height: 38px; padding: 0 14px; font-size: 13px; }
.btn:active { opacity: .7; }

.seg { display: flex; gap: 8px; width: 100%; }
.seg.wrap { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: min-content; width: 100%; }
.seg.wrap button { padding-left: 0; padding-right: 0; text-align: center; }
.seg button { padding: 9px 14px; border: 1px solid var(--line); border-radius: 4px; background: var(--card); color: var(--ink-2); font-size: 13.5px; letter-spacing: 0.04em; }
.seg button[aria-pressed="true"] { border-color: var(--ink); color: var(--ink); background: var(--paper-2); }
.seg button[data-v="johnson"][aria-pressed="true"] { border-color: var(--johnson); color: var(--johnson); background: var(--johnson-soft); }

/* 底部記一筆 */
.add {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: calc(22px + env(safe-area-inset-bottom));
  width: min(calc(100% - 44px), 436px); height: 54px;
  background: var(--ink); color: var(--paper);
  border-radius: 4px; font-size: 15px; letter-spacing: 0.16em;
  box-shadow: 0 10px 30px rgba(44, 44, 42, .18);
  z-index: 20;
}
.add:active { opacity: .85; }

/* 表單 sheet */
.shade { position: fixed; inset: 0; background: rgba(44, 44, 42, .35); z-index: 30; }
.sheet {
  position: fixed; left: 50%; bottom: 0; transform: translate(-50%, 0);
  width: 100%; max-width: 520px; max-height: 92vh; overflow-y: auto;
  background: var(--paper); border-radius: 14px 14px 0 0;
  padding: 10px 22px calc(22px + env(safe-area-inset-bottom));
  z-index: 31;
  animation: up .22s ease;
}
@keyframes up { from { transform: translate(-50%, 100%); } to { transform: translate(-50%, 0); } }
.sheet-bar { width: 36px; height: 4px; margin: 0 auto 16px; border-radius: 2px; background: var(--line); }
.sheet h2 { font-size: 15px; font-weight: 500; letter-spacing: 0.1em; margin-bottom: 18px; }
.f-amt { display: flex; align-items: stretch; gap: 10px; border-bottom: 1px solid var(--ink); padding-bottom: 6px; }
.f-amt input { flex: 1; min-width: 0; border: 0; background: transparent; font-size: 40px; font-weight: 300; text-align: right; padding: 0; }
.f-amt input::placeholder { color: var(--line); }
.f-amt input:focus, .f-amt input:focus-visible { outline: none; }
.f-amt:focus-within { border-bottom-width: 2px; padding-bottom: 5px; }
.cur { display: flex; flex-direction: column; justify-content: center; gap: 4px; }
.cur button { padding: 3px 10px; border: 1px solid var(--line); border-radius: 4px; color: var(--muted); font-size: 13px; }
.cur button[aria-pressed="true"] { border-color: var(--ink); color: var(--ink); background: var(--paper-2); }
.conv { min-height: 20px; margin: 6px 0 18px; text-align: right; color: var(--muted); font-size: 12px; letter-spacing: 0.06em; }
.f-row { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.lbl { color: var(--muted); font-size: 11px; letter-spacing: 0.16em; }
.f-row input[type="text"], .f-row input[type="date"] { width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: 4px; background: var(--card); font-size: 16px; -webkit-appearance: none; appearance: none; }
.f-row input[type="date"] { min-height: 46px; }
.f-actions { display: flex; gap: 10px; margin-top: 8px; }
.f-actions .btn { flex: 1; }
.f-actions .btn.danger { flex: 0 0 auto; }

/* 首次：你係邊個 */
.onboard {
  position: fixed; inset: 0; z-index: 50;
  display: flex; flex-direction: column; justify-content: center; gap: 14px;
  padding: 40px 32px; background: var(--paper);
}
.onboard h2 { font-size: 28px; font-weight: 400; letter-spacing: 0.04em; margin: 4px 0 6px; }
.onboard .muted { font-size: 13.5px; margin-bottom: 16px; }
.who { padding: 18px; border: 1px solid var(--ink); border-radius: 4px; font-size: 17px; letter-spacing: 0.12em; background: var(--card); }
.who[data-me="johnson"] { border-color: var(--johnson); color: var(--johnson); }

.foot { display: flex; justify-content: space-between; margin-top: 40px; padding-top: 12px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; letter-spacing: 0.14em; }

.toast {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: calc(90px + env(safe-area-inset-bottom));
  padding: 9px 16px; border-radius: 4px;
  background: var(--ink); color: var(--paper); font-size: 13px; letter-spacing: 0.06em;
  opacity: 0; pointer-events: none; transition: opacity .18s; z-index: 60; white-space: nowrap;
}
.toast.show { opacity: 1; }

@media (prefers-reduced-motion: reduce) {
  .sheet { animation: none; }
  .toast { transition: none; }
}