:root {
  --bg: #ffffff;
  --surface: #fafafa;
  --surface-2: #f4f4f4;
  --surface-3: #ebebeb;
  --border: #e7e7e7;
  --border-strong: #d6d6d6;
  --text: #000000;
  --text-muted: #6b6b6b;
  --text-faint: #9a9a9a;
  --accent: #000000;
  --accent-press: #1a1a1a;
  --on-accent: #ffffff;
  --credit: #000000;
  --debit: #000000;
  --danger: #000000;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04);

  --frame-w: 420px;
  --frame-h: 900px;
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-pill: 999px;
  --pad: 20px;

  --mono:
    'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.45;
  color: var(--text);
  background: var(--bg);
  color-scheme: light;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html,
body,
#root {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  background: var(--bg);
  display: grid;
  place-items: center;
  overflow: hidden;
}

#root {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
}

.frame {
  width: 100%;
  height: 100%;
  max-width: var(--frame-w);
  max-height: var(--frame-h);
  background: var(--bg);
  color: var(--text);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
}

.statusbar {
  height: 28px;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 22px 0;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text);
  user-select: none;
}
.statusbar .dots {
  display: inline-flex;
  gap: 4px;
  opacity: 0.85;
}
.statusbar .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: currentColor;
}

.screen {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.screen-header {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px var(--pad) 8px;
}
.screen-header .title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.screen-header .subtitle {
  font-size: 12px;
  color: var(--text-muted);
  margin: 2px 0 0;
}

.screen-body {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 8px var(--pad) 24px;
  -webkit-overflow-scrolling: touch;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.screen-footer {
  flex: 0 0 auto;
  padding: 16px var(--pad) calc(20px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--border);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.icon-btn {
  appearance: none;
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-family: inherit;
  font-size: 16px;
  line-height: 1;
  transition: background 0.12s ease, transform 0.06s ease;
}
.icon-btn:hover {
  background: var(--surface-3);
}
.icon-btn:active {
  transform: scale(0.96);
}

.btn {
  appearance: none;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  border-radius: var(--r-md);
  padding: 14px 16px;
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
  color: var(--text);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background 0.12s ease, transform 0.06s ease, opacity 0.12s ease;
  width: 100%;
}
.btn:hover {
  background: var(--surface-3);
}
.btn:active {
  transform: scale(0.99);
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}
.btn.primary:hover {
  background: var(--accent-press);
  border-color: var(--accent-press);
}
.btn.danger {
  color: var(--text);
  border-color: var(--border-strong);
}
.btn.danger:hover {
  background: var(--surface-2);
}
.btn.ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-muted);
}
.btn.ghost:hover {
  background: var(--surface-2);
  color: var(--text);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.field-label {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.input {
  appearance: none;
  font-family: inherit;
  font-size: 16px;
  width: 100%;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 14px 14px;
  outline: none;
  transition: border-color 0.12s ease, background 0.12s ease;
}
.input::placeholder {
  color: var(--text-faint);
}
.input:focus {
  border-color: var(--accent);
  background: var(--surface-2);
}
.input.invalid {
  border-color: var(--danger);
}

.error {
  color: var(--danger);
  font-size: 12px;
  min-height: 1em;
}

.muted {
  color: var(--text-muted);
}
.faint {
  color: var(--text-faint);
}

.list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.spacer {
  flex: 1 1 auto;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.account-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  text-align: left;
  width: 100%;
  font-family: inherit;
  color: inherit;
  cursor: pointer;
  transition: background 0.12s ease, transform 0.06s ease,
    border-color 0.12s ease;
}
.account-card:hover {
  background: var(--surface-2);
  border-color: var(--border-strong);
}
.account-card:active {
  transform: scale(0.995);
}

.account-avatar {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--surface-3);
  color: var(--accent);
  font-weight: 700;
  font-size: 15px;
  flex: 0 0 auto;
}

.account-meta {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.account-name {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.005em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.account-sub {
  font-size: 12px;
  color: var(--text-muted);
}
.account-amount {
  font-size: 15px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 48px 16px;
  color: var(--text-muted);
  gap: 6px;
}
.empty .empty-title {
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
}
.empty .empty-sub {
  font-size: 13px;
  color: var(--text-muted);
}
.empty .empty-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  margin-bottom: 8px;
  color: var(--text-muted);
}

.balance-display {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}
.balance-label {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.balance-value {
  font-size: 28px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}
.balance-value.credit,
.balance-value.debit {
  color: var(--text);
}

.txn-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.txn-row:last-child {
  border-bottom: 0;
}
.txn-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 16px;
  flex: 0 0 auto;
}
.txn-icon.credit {
  background: var(--surface-2);
  color: var(--text);
}
.txn-icon.debit {
  background: var(--surface-2);
  color: var(--text);
}
.txn-meta {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.txn-note {
  font-size: 14px;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.txn-date {
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.04em;
}
.txn-amount {
  font-size: 15px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.txn-amount.credit,
.txn-amount.debit {
  color: var(--text);
}

.section-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-faint);
  padding: 4px 4px;
}

.segmented {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 4px;
  gap: 4px;
}
.segmented button {
  appearance: none;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  background: transparent;
  color: var(--text-muted);
  border: 0;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
}
.segmented button[aria-pressed='true'] {
  background: var(--surface-3);
  color: var(--text);
}
.segmented button.credit[aria-pressed='true'],
.segmented button.debit[aria-pressed='true'] {
  color: var(--text);
}

.amount-input {
  text-align: center;
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.01em;
  padding: 24px 12px;
  font-variant-numeric: tabular-nums;
}

.brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 36px 16px 24px;
}
.brand-mark {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--accent);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.02em;
}
.brand-name {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand-sub {
  font-size: 12px;
  color: var(--text-muted);
}

.toast {
  position: absolute;
  left: 50%;
  bottom: 96px;
  transform: translateX(-50%);
  background: var(--surface-3);
  color: var(--text);
  border: 1px solid var(--border-strong);
  padding: 8px 14px;
  border-radius: var(--r-pill);
  font-size: 13px;
  box-shadow: var(--shadow);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.18s ease, transform 0.18s ease;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(-4px);
}