/* 静かな紙. Red appears only on days that ended with money left (month view). */
:root {
  --bg: #f3f3f1;
  --ink: #222222;
  --ink-body: #444444;
  --ink-soft: #6f6f6b;
  --ghost: #dcdcd8;
  --line: #e4e4e0;
  --signal: #d23a28;
  --f-num: "SF Pro Display", "Helvetica Neue", "Segoe UI", system-ui, sans-serif;
  --f-label: "Hiragino Sans", "Yu Gothic UI", system-ui, sans-serif;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--f-label);
  font-size: 15px;
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
}
body > section {
  max-width: 480px;
  margin: 0 auto;
  padding: max(28px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
}
[hidden] { display: none !important; }
button, input { font: inherit; color: inherit; }
button { appearance: none; background: none; border: 0; padding: 0; cursor: pointer; }
button:disabled { opacity: 0.3; cursor: default; }
:focus-visible { outline: 1px solid var(--ink-soft); outline-offset: 3px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* notices */
#notice { display: block; width: 100%; text-align: center; font-size: 12px; letter-spacing: 0.12em; color: var(--ink-soft); padding: 4px 0 16px; }
#backup-nudge { display: block; margin: 0 auto 8px; font-size: 12px; letter-spacing: 0.12em; padding: 6px 2px; border-bottom: 1px solid var(--ink); }

/* today */
.label { font-size: 12px; letter-spacing: 0.2em; color: var(--ink-soft); }
#status { display: grid; justify-items: center; gap: 14px; padding: 12px 0 32px; user-select: none; -webkit-user-select: none; }
#left {
  font-family: var(--f-num);
  font-weight: 100;
  font-size: clamp(64px, 20vw, 112px);
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
#dots { display: grid; grid-template-columns: repeat(20, 4px); gap: 8px; margin-top: 8px; }
#dots i { width: 4px; height: 4px; border-radius: 50%; background: var(--ghost); transition: background 0.6s ease; }
#dots i.on { background: var(--ink); }
.meta { font-family: var(--f-num); font-weight: 300; font-size: 13px; color: var(--ink-soft); font-variant-numeric: tabular-nums; margin: 8px 2px; min-height: 1em; }

/* forms */
.inline { display: flex; gap: 12px; align-items: end; }
input[type="text"] {
  min-width: 0;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--ink-soft);
  border-radius: 0;
  padding: 10px 2px;
  font-size: 16px; /* avoids iOS zoom */
  outline: none;
}
input[type="text"]:focus { border-bottom-color: var(--ink); }
#amount, #budget-input, #change-budget-input { width: 7em; font-family: var(--f-num); font-variant-numeric: tabular-nums; }
#note { flex: 1; }
.unit { color: var(--ink-soft); padding-bottom: 10px; }
#budget-form { display: grid; gap: 12px; padding: 64px 0 24px; }
.error { font-size: 13px; color: var(--ink-body); margin: 8px 2px; min-height: 1em; }
.help { font-size: 13px; line-height: 1.6; color: var(--ink-soft); margin: 8px 2px; }

/* lists */
h2 { font-size: 11px; font-weight: 400; letter-spacing: 0.2em; color: var(--ink-soft); margin: 28px 0 6px; }
h3 { font-size: 13px; font-weight: 400; color: var(--ink-body); margin: 24px 2px 0; }
.list { list-style: none; margin: 12px 0 0; padding: 0; }
.list li { border-bottom: 1px solid var(--line); }
.row {
  display: flex; align-items: baseline; gap: 14px;
  width: 100%; min-height: 48px; padding: 14px 2px;
  text-align: left;
  user-select: none; -webkit-user-select: none;
  -webkit-touch-callout: none;
}
.row .time { font-family: var(--f-num); font-weight: 300; font-size: 13px; color: var(--ink-soft); font-variant-numeric: tabular-nums; }
.row .name { flex: 1; color: var(--ink-body); overflow-wrap: anywhere; }
.row .amt { font-family: var(--f-num); font-weight: 300; font-variant-numeric: tabular-nums; }
.row.pressing { opacity: 0.5; transition: opacity 0.6s linear; }

/* buttons */
.quiet { color: var(--ink-soft); font-size: 14px; padding: 12px 2px; }
.quiet:hover:not(:disabled) { color: var(--ink); }
.ink { color: var(--ink); font-size: 14px; padding: 10px 4px; border-bottom: 1px solid var(--ink); white-space: nowrap; }
.foot { display: block; font-size: 12px; letter-spacing: 0.14em; color: var(--ink-soft); padding: 12px 14px; text-decoration: none; }
.foot:hover { color: var(--ink); }
.foot-nav { display: flex; justify-content: center; gap: 8px; margin-top: 36px; }
.form-actions { display: flex; justify-content: flex-end; gap: 20px; align-items: center; }

/* month */
.month-head { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; }
.month-head h2 { margin: 0; font-family: var(--f-num); font-size: 14px; letter-spacing: 0.1em; color: var(--ink); }
.weekdays, #calendar { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); }
.weekdays { margin-top: 20px; font-size: 11px; color: var(--ink-soft); text-align: center; }
#calendar { margin-top: 4px; }
#calendar > * { height: 48px; display: flex; align-items: center; justify-content: center; }
#calendar i { display: block; width: 8px; height: 8px; border-radius: 50%; background: var(--ghost); }
#calendar .spent i { background: var(--ink); }
#calendar .saved i { background: var(--signal); }
#calendar .today i { background: transparent; box-shadow: inset 0 0 0 1px var(--ink); }
#calendar button[aria-pressed="true"] { box-shadow: inset 0 -1px 0 var(--ink); }

/* settings */
.backup { display: flex; gap: 28px; align-items: center; }
#restore-form { display: grid; gap: 8px; }
textarea {
  width: 100%;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 10px;
  font: 13px/1.5 ui-monospace, Menlo, monospace;
  color: var(--ink);
  resize: vertical;
  outline: none;
  word-break: break-all;
}
textarea:focus { border-color: var(--ink-soft); }
.version { margin: 40px 2px 0; font-size: 12px; letter-spacing: 0.08em; color: var(--ink-soft); }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}