:root {
  --bg: #f8f8f5;
  --card: #ffffff;
  --ink: #111111;
  --ink2: #5b5a55;
  --line: #deddd6;
  --accent: #2f6fb4;
  --accent2: #1f8a70;
  --danger: #c13a3a;
  --warn: #9a6a00;
  --lock: #817f78;
  --shadow: 0 2px 10px rgba(0, 0, 0, .06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101111;
    --card: #1b1c1c;
    --ink: #f8f8f5;
    --ink2: #c2c0b8;
    --line: #30312f;
    --accent: #5d9be8;
    --accent2: #46b092;
    --danger: #e07171;
    --warn: #d7a84d;
    --lock: #a8a59b;
    --shadow: none;
  }
}

* { box-sizing: border-box; font-family: system-ui, -apple-system, "Segoe UI", sans-serif; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  padding-bottom: calc(68px + env(safe-area-inset-bottom));
}
body.editing { padding-bottom: env(safe-area-inset-bottom); }
main { max-width: 520px; margin: 0 auto; padding: 12px; }
h1 { font-size: 1.1rem; line-height: 1.25; margin: 8px 4px 12px; letter-spacing: 0; }
.scr[hidden] { display: none; }
.top, .bar { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.bar h1 { margin-right: auto; }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.grid button {
  min-height: 58px;
  padding: 10px 4px;
  font-size: 1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  color: var(--ink);
  box-shadow: var(--shadow);
}
.grid button:active, .ghost:active, .icon-btn:active { transform: translateY(1px); }
.keypad button { min-height: 54px; font-size: 1.35rem; font-variant-numeric: tabular-nums; }
.display {
  font-size: 2.25rem;
  font-weight: 760;
  text-align: right;
  padding: 12px 8px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
}
.row { display: flex; gap: 8px; margin: 10px 0; align-items: center; flex-wrap: wrap; }
button.primary {
  width: 100%;
  min-height: 50px;
  padding: 14px;
  font-size: 1.05rem;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
}
button.ghost, .icon-btn {
  min-height: 40px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  color: var(--ink2);
}
button.ghost.on {
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 700;
}
.icon-btn { min-width: 40px; font-size: 1.1rem; }
input {
  min-height: 40px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  color: var(--ink);
  font-size: 1rem;
}
label { display: block; margin: 10px 0; color: var(--ink2); }
label input { width: 100%; margin-top: 4px; }
.tabs {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  background: var(--card);
  border-top: 1px solid var(--line);
  padding-bottom: env(safe-area-inset-bottom);
}
.tabs button {
  flex: 1 1 0;
  min-width: 0;
  min-height: 56px;
  padding: 12px 4px;
  border: none;
  background: none;
  color: var(--ink2);
  font-size: 1rem;
}
.tabs button.on { color: var(--accent); font-weight: 700; }
body.editing .tabs { display: none; }
#toast {
  position: fixed;
  bottom: calc(78px + env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: 8px;
  font-size: .9rem;
  max-width: 90%;
  z-index: 10;
}
.panel {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 8px 0;
  margin: 8px 0;
}
.tx {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  margin: 8px 0;
  box-shadow: var(--shadow);
}
.tx .amt { font-weight: 760; font-variant-numeric: tabular-nums; }
.tx .sub { color: var(--ink2); font-size: .86rem; line-height: 1.45; }
.tx .lock { color: var(--lock); }
.tx .ops { display: flex; gap: 8px; margin-top: 8px; }
.split-row {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  margin: 6px 0;
  font-size: .95rem;
}
.split-row span:first-child { flex: 1 1 auto; min-width: 0; overflow-wrap: anywhere; }
.split-row .ghost { flex: 0 0 auto; min-height: 36px; padding: 6px 10px; }
.split-row .row-main {
  flex: 1 1 190px;
  min-height: 44px;
  padding: 6px 0;
  color: var(--ink);
  font-size: .95rem;
  display: flex;
  gap: 8px;
  justify-content: space-between;
  align-items: center;
}
.edit-target {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
  margin: 10px 0 4px;
}
.edit-target span {
  min-width: 0;
  overflow-wrap: anywhere;
  font-weight: 700;
}
.actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 8px;
  margin-top: 12px;
}
.actions .primary { min-height: 46px; }
.count-box {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) 48px;
  align-items: center;
  gap: 10px;
  margin: 6px 0 10px;
}
.count-box > div {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
}
#collect-count {
  font-size: 1.45rem;
  font-weight: 760;
  font-variant-numeric: tabular-nums;
}
.preset-row {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  margin: 8px 0;
}
.preset-row .ghost { min-height: 44px; padding: 8px 4px; }
.amt { font-variant-numeric: tabular-nums; }
.muted { color: var(--ink2); font-size: .88rem; line-height: 1.45; }
.danger { color: var(--danger); }
.warn { color: var(--warn); }
.empty {
  margin: 24px 4px;
  color: var(--ink2);
  line-height: 1.6;
}