:root {
  --bg: #1a1612;
  --bg-elev: #262017;
  --ink: #f3ebe0;
  --muted: #a89882;
  --accent: #e8a87c;
  --accent-ink: #1a120c;
  --line: #3a3228;
  --danger: #e07a6a;
  --ok: #8fbc8f;
  --cat: #3a3228;
  --cat-on: #e8a87c;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --font: "SF Pro Display", "Segoe UI", "PingFang HK", "Microsoft JhengHei", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  -webkit-tap-highlight-color: transparent;
}

body {
  background:
    radial-gradient(ellipse 90% 50% at 50% -20%, #3d2e1f 0%, transparent 55%),
    var(--bg);
}

.app {
  width: min(440px, 100%);
  margin: 0 auto;
  padding: calc(0.85rem + var(--safe-top)) 1rem calc(1.5rem + var(--safe-bottom));
}

.top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
  padding-top: 0.15rem;
}

.brand {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  margin: 0.2rem 0 0;
  font-size: 1.35rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

h2 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

.icon-btn {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg-elev);
  color: var(--muted);
  font-size: 1.1rem;
  cursor: pointer;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.35rem;
  margin-bottom: 1rem;
  padding: 0.3rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg-elev);
}

.tab {
  border: none;
  background: transparent;
  color: var(--muted);
  border-radius: 10px;
  padding: 0.65rem 0.4rem;
  font: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
}

.tab.on {
  background: var(--accent);
  color: var(--accent-ink);
}

.hero {
  padding: 0.25rem 0 1rem;
}

.hero-label {
  margin: 0 0 0.65rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.88rem;
}

.hero-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
  margin-bottom: 0.55rem;
}

.hero-person {
  border-radius: 14px;
  padding: 0.75rem 0.7rem 0.8rem;
  border: 1px solid var(--line);
  background: var(--bg-elev);
  text-align: center;
  min-width: 0;
}

.hero-person.me {
  border-color: color-mix(in srgb, #7a9bb8 40%, var(--line));
}

.hero-person.gf {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--line));
  background: color-mix(in srgb, var(--accent) 10%, var(--bg-elev));
}

.hp-k {
  margin: 0;
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 600;
}

.hero-person.gf .hp-k {
  color: var(--accent);
}

.hp-v {
  margin: 0.3rem 0 0.25rem;
  font-size: clamp(1.35rem, 6.5vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}

.hero-person.gf .hp-v {
  color: var(--accent);
}

.hp-sub {
  margin: 0;
  font-size: 0.68rem;
  color: var(--muted);
  line-height: 1.35;
}

.hero-meta {
  margin: 0;
  text-align: center;
  color: var(--muted);
  font-size: 0.82rem;
}

.hero-total {
  display: none;
}

.panel {
  background: color-mix(in srgb, var(--bg-elev) 92%, transparent);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1rem 1rem 1.15rem;
  margin-bottom: 0.9rem;
}

.field-label {
  display: grid;
  gap: 0.35rem;
  margin: 0 0 0.55rem;
  font-size: 0.82rem;
  color: var(--muted);
  min-width: 0;
}

.field-label input[type="date"],
.field-label input[type="month"],
#month-days,
#month-settle,
#day-pick,
#paid-date {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
  border: 1px solid var(--line);
  background: #32281f;
  color: var(--ink);
  border-radius: 10px;
  padding: 0.65rem 2.4rem 0.65rem 0.75rem;
  font: inherit;
  color-scheme: dark;
  -webkit-appearance: none;
  appearance: none;
  overflow: hidden;
  position: relative;
}

/* iOS/Safari 日曆掣唔好飛出格外 */
input[type="date"]::-webkit-calendar-picker-indicator,
input[type="month"]::-webkit-calendar-picker-indicator {
  position: absolute;
  right: 0.55rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.25rem;
  height: 1.25rem;
  margin: 0;
  padding: 0;
  opacity: 0.85;
  cursor: pointer;
}

.list-head {
  min-width: 0;
}

.list-head input[type="month"] {
  flex: 0 1 9.5rem;
  width: auto;
  max-width: 42%;
  min-width: 0;
}

.amount-box {
  margin: 0.35rem 0 0.9rem;
  padding: 0.85rem 0.9rem 1rem;
  border-radius: 16px;
  border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--line));
  background: #3a2c20;
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 12%, transparent);
}

.amount-box-label {
  margin: 0 0 0.35rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 600;
}

.composer .amount-display {
  margin: 0;
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

#amount {
  width: 100%;
  border: 1px solid var(--line);
  background: #1f1812;
  color: var(--ink);
  font: inherit;
  font-size: 1.45rem;
  font-weight: 650;
  text-align: center;
  padding: 0.7rem 0.75rem;
  margin: 0.55rem 0 0;
  border-radius: 12px;
  outline: none;
  font-variant-numeric: tabular-nums;
}

#amount::placeholder {
  color: #7a6b58;
  font-weight: 500;
}

#amount:focus {
  border-color: var(--accent);
}

.quick-row, .cats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.85rem;
}

.quick-row button,
.cats button {
  border: 1px solid var(--line);
  background: var(--cat);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.45rem 0.75rem;
  font: inherit;
  font-size: 0.88rem;
  cursor: pointer;
}

.cats button.on {
  background: var(--cat-on);
  color: var(--accent-ink);
  border-color: var(--cat-on);
  font-weight: 650;
}

.cats button.add-card-btn {
  min-width: 2.4rem;
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1;
  background: transparent;
  border-style: dashed;
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
}

#merchant,
#note {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  border-radius: 12px;
  padding: 0.75rem 0.85rem;
  font: inherit;
  margin-bottom: 0.65rem;
}

#note {
  margin-bottom: 0.75rem;
}

.seg {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
  margin-bottom: 0.65rem;
}

.seg.seg-3 {
  grid-template-columns: 1fr 1fr 1fr;
}

.seg button {
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--muted);
  border-radius: 12px;
  padding: 0.7rem 0.35rem;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 650;
  cursor: pointer;
}

.seg button.on {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}

.aa-hint {
  margin: -0.25rem 0 0.85rem;
  text-align: center;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
}

#card-wrap { margin-bottom: 0.5rem; }

#new-card {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  border-radius: 12px;
  padding: 0.75rem 0.85rem;
  font: inherit;
}

.save {
  width: 100%;
  border: none;
  border-radius: 14px;
  padding: 1rem;
  background: var(--accent);
  color: var(--accent-ink);
  font: inherit;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
}

.save:disabled { opacity: 0.5; }

.msg {
  margin: 0.75rem 0 0;
  text-align: center;
  font-size: 0.9rem;
}
.msg.ok { color: var(--ok); }
.msg.err { color: var(--danger); }

.list-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
  min-width: 0;
}

.list-head h2 { margin: 0; }

.list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.list li {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.55rem;
  align-items: center;
  padding: 0.8rem 0;
  border-top: 1px solid var(--line);
}

.list li:first-child { border-top: none; }

.item-title {
  margin: 0;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.item-sub {
  margin: 0.15rem 0 0;
  font-size: 0.78rem;
  color: var(--muted);
}

.item-amt {
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.tag-aa {
  display: inline-block;
  margin-left: 0.25rem;
  padding: 0.05rem 0.35rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 25%, transparent);
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 700;
}

.del {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  border-radius: 8px;
  padding: 0.3rem 0.5rem;
  font: inherit;
  font-size: 0.78rem;
  cursor: pointer;
}

.empty {
  margin: 0.5rem 0 0;
  color: var(--muted);
}

.day-sum {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  font-weight: 650;
  color: var(--accent);
}

.day-groups {
  list-style: none;
  margin: 0;
  padding: 0;
}

.day-groups > li {
  padding: 0.75rem 0;
  border-top: 1px solid var(--line);
}

.day-groups > li:first-child { border-top: none; }

.day-groups button.day-link {
  width: 100%;
  border: none;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  display: flex;
  justify-content: space-between;
  cursor: pointer;
  padding: 0;
}

.who-seg {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.35rem;
  margin: 0.75rem 0 0.85rem;
  padding: 0.28rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--bg);
}

.who-seg button {
  border: none;
  background: transparent;
  color: var(--muted);
  border-radius: 9px;
  padding: 0.55rem 0.25rem;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 650;
  cursor: pointer;
}

.who-seg button.on {
  background: var(--accent);
  color: var(--accent-ink);
}

.who-summary {
  text-align: center;
  padding: 0.75rem 0.5rem 0.9rem;
  margin-bottom: 0.5rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--accent) 8%, var(--bg));
}

.who-summary-k {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 600;
}

.who-summary-v {
  margin: 0.25rem 0;
  font-size: clamp(1.7rem, 8vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

.who-summary-sub {
  margin: 0;
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.4;
}

.hint-inline {
  margin: 0 0 0.55rem;
  font-size: 0.78rem;
  color: var(--muted);
}

.settle-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
  margin-bottom: 0.65rem;
}

.settle-compare .cmp {
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--bg);
  padding: 0.75rem 0.65rem;
  text-align: center;
  min-width: 0;
}

.settle-compare .cmp.gf {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
  background: color-mix(in srgb, var(--accent) 12%, var(--bg));
}

.settle-compare .k {
  margin: 0;
  font-size: 0.75rem;
  color: var(--muted);
  font-weight: 600;
}

.settle-compare .v {
  margin: 0.3rem 0;
  font-size: 1.25rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.settle-compare .cmp.gf .v {
  color: var(--accent);
}

.settle-compare .s {
  margin: 0;
  font-size: 0.68rem;
  color: var(--muted);
  line-height: 1.35;
}

.settle-note {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.day-sum {
  display: none;
}

.person-title {
  margin: 0 0 0.75rem;
  font-size: 1.15rem;
  font-weight: 700;
}

.person-me {
  border-color: color-mix(in srgb, #7a9bb8 35%, var(--line));
}

.person-gf {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
}

.person-gf .person-title {
  color: var(--accent);
}

.settle-rows {
  display: grid;
  gap: 0.55rem;
}

.settle-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.55rem 0.65rem;
  border-radius: 10px;
  background: var(--bg);
  border: 1px solid var(--line);
  font-size: 0.9rem;
}

.settle-row strong {
  font-variant-numeric: tabular-nums;
  font-size: 1.05rem;
}

.settle-row.total {
  border-color: color-mix(in srgb, #7a9bb8 40%, var(--line));
  background: color-mix(in srgb, #7a9bb8 12%, var(--bg));
  font-weight: 650;
}

.settle-row.accent-row {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--line));
  background: color-mix(in srgb, var(--accent) 14%, var(--bg));
  font-weight: 650;
}

.settle-row.accent-row strong {
  color: var(--accent);
  font-size: 1.25rem;
}

.settle-row.muted {
  opacity: 0.85;
  color: var(--muted);
}

.sub-h {
  margin: 1rem 0 0.35rem;
  font-size: 0.88rem;
  color: var(--muted);
  font-weight: 600;
}

.settle-grid {
  display: none;
}

dialog {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.2rem;
  background: var(--bg-elev);
  color: var(--ink);
  width: min(360px, 92vw);
}

dialog::backdrop { background: rgba(0,0,0,0.55); }

dialog h2 { margin: 0 0 0.4rem; font-size: 1.1rem; }
dialog p { margin: 0 0 0.75rem; color: var(--muted); font-size: 0.9rem; }

dialog label {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 0.65rem;
  font-size: 0.85rem;
  color: var(--muted);
}

dialog input {
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  border-radius: 8px;
  padding: 0.7rem 0.8rem;
  font: inherit;
}

dialog menu {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin: 0.75rem 0 0;
  padding: 0;
}

dialog menu button {
  border-radius: 8px;
  padding: 0.65rem 0.9rem;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
  border: 1px solid var(--line);
  background: var(--accent);
  color: var(--accent-ink);
}

dialog menu button[value="cancel"] {
  background: transparent;
  color: var(--muted);
}