:root {
  --color-bg-primary: #0f172a;
  --color-bg-secondary: #1e293b;
  --color-bg-tertiary: #334155;
  --color-border: #475569;
  --color-text-primary: #f1f5f9;
  --color-text-secondary: #94a3b8;
  --color-accent-green: #22c55e;
  --color-accent-red: #ef4444;
  --color-accent-blue: #3b82f6;
  --color-accent-yellow: #eab308;
}

* {
  box-sizing: border-box;
}

body {
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  margin: 0;
  padding: 0;
}

.app-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.page-content {
  padding-top: 24px;
}

/* Navigation */
.nav {
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  height: 56px;
  display: flex;
  align-items: center;
}

.nav-inner {
  max-width: 1280px;
  margin: auto;
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 0 24px;
  width: 100%;
}

.nav-brand {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text-primary);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 24px;
  margin-left: auto;
}

.nav-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  padding: 4px 0;
}

.nav-link:hover,
/* Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.875rem;
  padding: 4px 0;
}

.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  min-width: 160px;
  z-index: 100;
  padding: 6px 0;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.nav-dropdown-menu.open {
  display: block;
}

.nav-dropdown-item {
  display: block;
  width: 100%;
  padding: 9px 16px;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  box-sizing: border-box;
}

.nav-dropdown-item:hover,
.nav-dropdown-item.active {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
}

.nav-dropdown-item--danger {
  color: var(--color-accent-red);
}

.nav-dropdown-item--danger:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-accent-red);
}

.nav-dropdown-divider {
  border-top: 1px solid var(--color-border);
  margin: 6px 0;
}

.nav-link.active {
  color: var(--color-accent-blue);
  border-bottom: 2px solid var(--color-accent-blue);
}

/* Summary cards */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 20px 24px;
}

.card-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

.card-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.card-value.positive {
  color: var(--color-accent-green);
}

.card-value.negative {
  color: var(--color-accent-red);
}

/* Chart panels */
.chart-panel {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
}

.chart-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 16px;
}

.chart-container {
  width: 100%;
  min-height: 320px;
}

/* Charts row (side by side) */
.charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

/* Tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table th {
  background: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 10px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-primary);
}

.data-table tr:hover td {
  background: var(--color-bg-tertiary);
}

/* Section headers */
.section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0;
}

/* Account groups */
.account-group {
  margin-bottom: 32px;
}

.account-group-header {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: 6px 6px 0 0;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.account-group-name {
  font-weight: 600;
  font-size: 0.9rem;
}

.account-group-total {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* Loading and error states */
.loading-state {
  text-align: center;
  padding: 48px;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

.error-state {
  text-align: center;
  padding: 48px;
  color: var(--color-accent-red);
  font-size: 0.875rem;
}

/* Amount formatting helpers */
.amount-positive {
  color: var(--color-accent-green);
}

.amount-negative {
  color: var(--color-accent-red);
}

.amount-neutral {
  color: var(--color-text-primary);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 9999px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-checking {
  background-color: #3b82f6;
  color: #fff;
}

.badge-credit-card {
  background-color: #f97316;
  color: #fff;
}

.badge-savings {
  background-color: #22c55e;
  color: #fff;
}

.badge-investment {
  background: #2d1f3b;
  color: #c084fc;
}

.badge-loan {
  background-color: #6b7280;
  color: #fff;
}

.badge-warning {
  background-color: #eab308;
  color: #1e293b;
}

/* Table panel (no padding, overflow hidden) */
.table-panel {
  padding: 0;
  overflow: hidden;
}

/* Section heading within a page (used for two-section account pages) */
.section-heading {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0 0 12px 0;
}

/* Horizontal divider between page sections */
.section-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 28px 0;
}

/* Required deposit cell */
.deposit-value {
  font-weight: 700;
  color: var(--color-accent-blue);
}

/* Previous status badge */
.badge-previous {
  background: #334155;
  color: #94a3b8;
}

.page-heading {
  margin-bottom: 24px;
}

.page-heading h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 4px 0;
}

.page-heading p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin: 0;
}

/* Mini cards (3-up) */
.mini-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

/* Stat grid for income page */
.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 8px;
}

.stat-item {
  padding: 12px 0;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}

.stat-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

/* Totals row */
.totals-row {
  display: flex;
  gap: 32px;
  padding: 16px 0;
  border-top: 1px solid var(--color-border);
  font-size: 0.875rem;
}

.totals-label {
  color: var(--color-text-secondary);
}

.totals-value {
  font-weight: 700;
  color: var(--color-text-primary);
  margin-left: 8px;
}

.note-text {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  margin-top: 12px;
}

/* ── Modal overlay ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.15s ease;
  pointer-events: none;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

/* ── Modal panel ── */
.modal {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 28px 32px;
  min-width: 440px;
  max-width: 560px;
  width: 100%;
  transform: translateY(8px);
  transition: transform 0.15s ease;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-overlay.open .modal {
  transform: translateY(0);
}

/* ── Modal header ── */
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.modal-header h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-secondary);
  font-size: 1.25rem;
  line-height: 1;
  padding: 4px;
}

.modal-close:hover {
  color: var(--color-text-primary);
}

/* ── Form elements ── */
.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 9px 12px;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  color: var(--color-text-primary);
  font-size: 0.9rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent-blue);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.field-error {
  font-size: 0.78rem;
  color: var(--color-accent-red);
  margin-top: 4px;
  display: none;
}

.field-error.visible {
  display: block;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.form-level-error {
  font-size: 0.85rem;
  color: var(--color-accent-red);
  margin-bottom: 16px;
  padding: 10px 14px;
  background: rgba(239, 68, 68, 0.1);
  border-radius: 6px;
  display: none;
}

.form-level-error.visible {
  display: block;
}

/* ── Buttons ── */
.btn {
  padding: 8px 18px;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.1s;
}

.btn-primary {
  background: var(--color-accent-blue);
  color: white;
}

.btn-primary:hover {
  background: #2563eb;
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-danger {
  background: var(--color-accent-red);
  color: white;
}

.btn-danger:hover {
  background: #dc2626;
}

.btn-secondary {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
}

.btn-secondary:hover {
  background: var(--color-border);
}

.btn-ghost {
  background: none;
  color: var(--color-text-secondary);
}

.btn-ghost:hover {
  color: var(--color-text-primary);
}

.btn-ghost.btn-delete:hover {
  color: var(--color-accent-red);
}

.btn-sm {
  padding: 5px 12px;
  font-size: 0.8rem;
}

/* ── Row actions ── */
.row-actions {
  display: flex;
  gap: 8px;
  opacity: 0;
}

tr:hover .row-actions {
  opacity: 1;
}

/* ── Confirm dialog ── */
.confirm-dialog {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 28px 32px;
  max-width: 400px;
  width: 100%;
  transform: translateY(8px);
  transition: transform 0.15s ease;
}

.modal-overlay.open .confirm-dialog {
  transform: translateY(0);
}

.confirm-message {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
  line-height: 1.5;
}

/* ── Toast notifications ── */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 12px 16px;
  font-size: 0.875rem;
  min-width: 280px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  animation: slideIn 0.2s ease;
}

.toast-success {
  border-left: 3px solid var(--color-accent-green);
}

.toast-error {
  border-left: 3px solid var(--color-accent-red);
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }

  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* ── Panel header row ── */
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.panel-header .chart-title {
  margin-bottom: 0;
}

/* ── Page heading with action button ── */
.page-heading-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
}

/* ── Nested table inside expanded row ── */
.expanded-row td {
  background: var(--color-bg-primary);
  padding: 0;
}

.nested-table-wrapper {
  padding: 12px 24px;
}

.nested-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}

.nested-table th {
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.nested-table td {
  padding: 8px 12px;
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border);
}

/* ── Modal subtitle ── */
.modal-subtitle {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
  line-height: 1.5;
}

/* ── Config section divider ── */
.config-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
}

.config-divider::before,
.config-divider::after {
  content: '';
  flex: 1;
  border-top: 1px solid var(--color-border);
}

/* ── Form note text ── */
.form-note {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  margin-top: 6px;
}

/* ── Checkbox group ── */
.checkbox-group {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
}

.checkbox-group input[type="checkbox"] {
  width: auto;
  margin: 0;
}

.checkbox-group label {
  margin: 0;
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.875rem;
  color: var(--color-text-primary);
}

/* ── Roundup callout ── */
.roundup-callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent-yellow);
  border-radius: 6px;
  padding: 10px 20px;
  margin-bottom: 24px;
  font-size: 0.875rem;
}

.roundup-label {
  color: var(--color-text-secondary);
}

.roundup-value {
  font-weight: 700;
  color: var(--color-accent-yellow);
}

.category-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 9999px;
  font-size: 0.7rem;
  font-weight: 600;
}

.color-swatch {
  display: inline-block;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  vertical-align: middle;
}

.badge-rounding {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 9999px;
  font-size: 0.7rem;
  font-weight: 600;
  background: #3b2e1a;
  color: #eab308;
  text-transform: uppercase;
}

.roundup-shown {
  color: var(--color-accent-yellow);
  font-size: 0.8rem;
  font-weight: 600;
}

.rounding-form-note {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  margin-top: 4px;
  display: block;
  line-height: 1.4;
}

.roundup-account-line {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  margin-top: 4px;
  padding-left: 8px;
}

.paycheck-waterfall {
  display: flex;
  flex-direction: column;
}

.waterfall-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  padding: 0.5rem 1rem;
  gap: 0.75rem;
}

.waterfall-label {
  display: flex;
  flex-direction: row;
  align-items: baseline;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.waterfall-name {
  font-size: 0.9rem;
}

.waterfall-meta {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

.waterfall-amount {
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
  min-width: 7rem;
  text-align: right;
  white-space: nowrap;
}

.waterfall-actions {
  display: flex;
  gap: 0.25rem;
  min-width: 8rem;
  justify-content: flex-end;
}

/* Rows without actions (gross, total, net) — actions column collapses */
.waterfall-gross,
.waterfall-total,
.waterfall-net {
  grid-template-columns: 1fr auto;
}

.waterfall-gross .waterfall-label,
.waterfall-gross .waterfall-amount {
  font-weight: 600;
}

.waterfall-total .waterfall-amount,
.waterfall-net .waterfall-label,
.waterfall-net .waterfall-amount {
  font-weight: 600;
}

.waterfall-net {
  font-size: 1.05rem;
}

.waterfall-divider {
  height: 1px;
  background: var(--color-border);
  margin: 0.15rem 1rem;
}

.waterfall-divider-heavy {
  height: 2px;
  background: var(--color-border);
  margin: 0.15rem 1rem;
}

/* ── What-If page ── */

.whatif-section {
  margin-bottom: 24px;
}

.whatif-section-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}

.whatif-results-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 12px;
}

.wi-toggle-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
}

.wi-toggle-row:last-child {
  border-bottom: none;
}

.wi-toggle-label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}

.wi-toggle-name {
  font-size: 0.9rem;
  color: var(--color-text-primary);
}

.wi-toggle-meta {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

.wi-override-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-left: 26px;
}

.wi-override-label {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.wi-override-row input {
  width: 120px;
  padding: 5px 8px;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  color: var(--color-text-primary);
  font-size: 0.85rem;
}

.wi-override-row input:focus {
  outline: none;
  border-color: var(--color-accent-blue);
}

.wi-hypo-bill-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
}

.wi-hypo-bill-row:last-child {
  border-bottom: none;
}

.wi-delta-row {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  padding: 4px 1rem;
}

.wi-delta {
  font-weight: 600;
  margin-right: 4px;
}

.wi-scaled-badge {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 9999px;
  font-size: 0.68rem;
  font-weight: 600;
  background: #1e3a5f;
  color: var(--color-accent-blue);
  text-transform: uppercase;
  margin-left: 4px;
}

.wi-dti-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.wi-dti-item {
  padding: 12px 0;
}

.settings-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--color-border);
  margin-bottom: 24px;
}

.settings-tab-btn {
  padding: 8px 18px;
  border: none;
  background: none;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  border-radius: 4px 4px 0 0;
  transition: color 0.15s;
}

.settings-tab-btn:hover {
  color: var(--color-text-primary);
}

.settings-tab-btn.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.settings-tab-pane {
  display: none;
}

.settings-tab-pane.active {
  display: block;
}

/* ── Bottom tab bar (hidden by default, shown on mobile) ── */
.bottom-tab-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  z-index: 200;
  align-items: stretch;
  overflow: hidden;
}

.bottom-tab-bar a {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  text-decoration: none;
  color: var(--color-text-secondary);
  font-size: 0.55rem;
  font-weight: 500;
  letter-spacing: 0;
  padding: 4px 2px;
  transition: color 0.15s;
  -webkit-tap-highlight-color: transparent;
  overflow: hidden;
  white-space: nowrap;
}

.bottom-tab-bar a.active,
.bottom-tab-bar a:hover {
  color: var(--color-accent-blue);
}

.bottom-tab-bar svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

/* Bill card view — hidden on desktop, shown on mobile via media query */
.bills-card-view {
  display: none;
}

/* Account card views — hidden on desktop, shown on mobile via media query */
.accounts-card-view {
  display: none;
}

/* Settings tab select — hidden on desktop, shown on mobile via media query */
.settings-tab-select-wrapper {
  display: none;
}

.settings-tab-select {
  width: 100%;
  padding: 10px 12px;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text-primary);
  font-size: 1rem;
  font-weight: 500;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  cursor: pointer;
}

.settings-tab-select:focus {
  outline: none;
  border-color: var(--color-accent-blue);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* ═══════════════════════════════════════════════════════════════════════════
   MOBILE  (max-width: 767px)
   All mobile overrides live here. Desktop rules above are untouched.
   ═══════════════════════════════════════════════════════════════════════════ */

@media (max-width: 767px) {

  /* ── Body padding to clear the fixed bottom tab bar ── */
  /* overflow-x hidden prevents wide tables from expanding the viewport width */
  html,
  body {
    overflow-x: hidden;
    max-width: 100vw;
  }

  body {
    padding-bottom: 72px;
  }

  /* ── Hide the desktop top nav links (keep the brand visible) ── */
  .nav-links {
    display: none;
  }

  /* ── App shell horizontal padding reduction ── */
  .app-shell {
    padding: 0 12px;
  }

  /* ── Bottom tab bar ── */
  .bottom-tab-bar {
    display: flex;
  }

  /* ── Modal — bottom sheet on mobile ── */
  .modal-overlay {
    align-items: flex-end;
    padding: 0;
  }

  .modal {
    width: 100%;
    max-width: 100%;
    border-radius: 16px 16px 0 0;
    max-height: 92vh;
    overflow-y: auto;
  }

  /* ── Form rows stack to single column ── */
  .form-row {
    flex-direction: column;
    gap: 0;
  }

  /* ── Dashboard: summary cards 2-column grid ── */
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Fifth card (Remainder) spans full width */
  .cards-grid .card:last-child {
    grid-column: 1 / -1;
  }

  /* Reduce card value font size on mobile */
  .card-value {
    font-size: 1.4rem;
  }

  /* ── Dashboard: four-panel grid — stack all panels ── */
  .charts-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* Reorder panels: Deposit Breakdown first, DTI second on mobile */
  /* Row 1 in HTML: DTI (order default 0), Deposit Breakdown (order default 0) */
  /* We want: Deposit Breakdown first (order: 1), DTI second (order: 2) */
  .charts-row:first-of-type .chart-panel:nth-child(1) {
    order: 2;
  }

  .charts-row:first-of-type .chart-panel:nth-child(2) {
    order: 1;
  }

  /* Chart panels get bottom margin back when stacked */
  .charts-row .chart-panel {
    margin-bottom: 0;
  }

  /* ── Dashboard: donut chart containers — explicit height on mobile ── */
  #bills-by-account-chart,
  #bills-by-category-chart {
    height: 280px !important;
  }

  /* ── Dashboard: DTI breakdown table — hide Type column on mobile ── */
  #dti-content .data-table th:nth-child(2),
  #dti-content .data-table td:nth-child(2) {
    display: none;
  }

  /* ── Dashboard: callout padding reduction ── */
  .roundup-callout {
    padding: 10px 14px;
  }

  /* ── Bills page: filter bar stacks on mobile ── */
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .filter-bar input[type="search"],
  .filter-bar select {
    width: 100%;
    min-width: unset;
  }

  /* ── Bills page: mini-cards 1-column on mobile ── */
  .mini-cards-grid {
    grid-template-columns: 1fr;
    gap: 10px;
    margin-bottom: 20px;
  }

  /* ── Bills page: hide desktop table view on mobile ── */
  .bills-table-view {
    display: none;
  }

  /* ── Bills page: show card view on mobile ── */
  .bills-card-view {
    display: block;
  }

  /* ── Bill card styles ── */
  .bill-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 14px 16px;
    margin-bottom: 10px;
  }

  .bill-card.bill-card--inactive {
    opacity: 0.5;
  }

  .bill-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 6px;
  }

  .bill-card-name {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-text-primary);
    line-height: 1.3;
  }

  .bill-card-due {
    font-size: 0.72rem;
    color: var(--color-text-secondary);
    background: var(--color-bg-tertiary);
    border-radius: 4px;
    padding: 2px 6px;
    white-space: nowrap;
    flex-shrink: 0;
  }

  .bill-card-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 10px;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
  }

  .bill-card-amounts {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 12px;
  }

  .bill-card-per-check {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-accent-blue);
  }

  .bill-card-monthly {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
  }

  .bill-card-actions {
    display: flex;
    gap: 8px;
  }

  .bill-card-actions .btn {
    flex: 1;
    justify-content: center;
    min-height: 44px;
    font-size: 0.85rem;
  }

  /* ── Account group header on mobile ── */
  .account-group-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 10px 14px;
  }

  .account-group-total {
    font-size: 0.8rem;
  }

  /* ── Accounts page: show card view, hide table on mobile ── */
  .accounts-table-view {
    display: none;
  }

  .accounts-card-view {
    display: block;
  }

  /* ── Accounts page: section heading margin on mobile ── */
  .section-heading {
    margin-top: 20px;
  }

  /* ── Accounts page: account cards ── */
  .account-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 14px 16px;
    margin-bottom: 10px;
  }

  .account-card--inactive {
    opacity: 0.5;
  }

  .account-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 8px;
  }

  .account-card-name {
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-text-primary);
    line-height: 1.3;
  }

  .account-card-institution {
    font-size: 0.78rem;
    color: var(--color-text-secondary);
    margin-bottom: 10px;
  }

  .account-card-stat-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 10px;
  }

  .account-card-stat {
    display: flex;
    flex-direction: column;
    gap: 2px;
  }

  .account-card-stat-label {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
  }

  .account-card-stat-value {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-primary);
  }

  .account-card-stat-value--accent {
    color: var(--color-accent-blue);
    font-size: 1.1rem;
    font-weight: 700;
  }

  .account-card-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 10px;
    font-size: 0.78rem;
    color: var(--color-text-secondary);
  }

  .account-card-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .account-card-actions .btn {
    justify-content: center;
    min-height: 44px;
    font-size: 0.82rem;
  }

  /* Single action (Restore) spans full width */
  .account-card-actions--single .btn {
    grid-column: 1 / -1;
  }

  /* ── Income page: stat-grid full-width on mobile ── */
  .stat-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .stat-item {
    padding: 8px 0;
    border-bottom: 1px solid var(--color-border);
  }

  .stat-item:last-child {
    border-bottom: none;
  }

  .stat-value {
    font-size: 1.1rem;
  }

  /* ── Income page: waterfall rows stack on mobile ── */
  /* Deduction rows: stack actions below label+amount */
  .waterfall-row {
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    gap: 0.25rem 0.5rem;
    padding: 0.6rem 0.75rem;
  }

  .waterfall-actions {
    grid-column: 1 / -1;
    min-width: unset;
    justify-content: flex-start;
    gap: 8px;
    padding-top: 4px;
  }

  .waterfall-actions .btn {
    min-height: 40px;
    flex: 1;
  }

  /* Gross/total/net rows are already 2-col, just tighten padding */
  .waterfall-gross,
  .waterfall-total,
  .waterfall-net {
    padding: 0.6rem 0.75rem;
  }

  .waterfall-amount {
    min-width: unset;
    font-size: 0.875rem;
  }

  /* ── Paydown page: controls panel stacks ── */
  /* form-row already set to flex-direction: column in Branch 01 */

  /* ── Paydown page: hide low-priority table columns ── */
  /* Show: Liability (1), Payoff Date (5), Total Interest (6) */
  /* Hide: Balance (2), APR (3), Min Payment (4) */

  /* Target the paydown table header specifically */
  .paydown-table thead th:nth-child(2),
  .paydown-table thead th:nth-child(3),
  .paydown-table thead th:nth-child(4),
  .paydown-table tbody td:nth-child(2),
  .paydown-table tbody td:nth-child(3),
  .paydown-table tbody td:nth-child(4) {
    display: none;
  }

  /* ── Paydown page: summary panel wraps ── */
  #paydown-summary>div {
    flex-wrap: wrap;
    gap: 12px;
  }

  /* ── Paydown page: chart explicit height ── */
  #paydown-chart {
    height: 260px;
  }

  /* ── Settings page: hide desktop tab bar, show select ── */
  .settings-tabs {
    display: none !important;
  }

  .settings-tab-select-wrapper {
    display: block;
    margin-bottom: 20px;
  }

  /* ── Settings page: category table — hide slug column ── */
  /* Categories table columns: Color(1) Icon(2) Label(3) Slug(4) Bills(5) Status(6) Actions(7) */
  /* Hide Slug (4) on mobile */
  #categories-table-container .data-table th:nth-child(4),
  #categories-table-container .data-table td:nth-child(4) {
    display: none;
  }

  /* ── Settings page: account-settings rows tighten ── */
  #account-settings-container .data-table th,
  #account-settings-container .data-table td {
    padding: 8px 10px;
    font-size: 0.8rem;
  }

  /* ── Settings page: Data tab buttons stack ── */
  #tab-data .chart-panel {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }

  /* ── What-If page: scenario adjustments table — hide Monthly Total column ── */
  /* Columns: Group(1) Monthly Total(2) Adjustments(3) Button(4) */
  /* Hide Monthly Total (2) on mobile — it's shown in the adjustment summary */
  #whatif-inputs-panel .data-table th:nth-child(2),
  #whatif-inputs-panel .data-table td:nth-child(2) {
    display: none;
  }

  /* ── What-If page: Configure buttons full-width on mobile ── */
  #whatif-inputs-panel .data-table td:nth-child(3) {
    /* Adjustments summary cell — allow wrap */
    white-space: normal;
    font-size: 0.8rem;
  }

  #whatif-inputs-panel .data-table td:last-child .btn {
    width: 100%;
    min-height: 40px;
  }

  /* ── What-If page: results panel — waterfall rows tighten ── */
  /* .charts-row already stacks from Branch 02 */
  .wi-dti-grid {
    flex-direction: column;
    gap: 12px;
  }

  .wi-delta-row {
    font-size: 0.78rem;
  }

  /* ── What-If page: results deposit table ── */
  #wi-result-deposits .data-table th:nth-child(2),
  #wi-result-deposits .data-table td:nth-child(2) {
    /* Keep both columns — deposit table only has Account + Amount, both needed */
    display: table-cell;
  }

}

/* ── PATCH: table overflow containment (applied after media query close) ── */
@media (max-width: 767px) {

  /* Wrap all tables in horizontal scroll rather than expanding the page */
  .chart-panel,
  .table-panel {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* Settings tab panes specifically */
  .settings-tab-pane {
    overflow-x: hidden;
  }

  #categories-table-container,
  #account-settings-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}