/* ==========================================================================
   Financial Coach — Mobile-first Responsive Styles (Dark Theme)
   ========================================================================== */

:root {
  /* Colors — Dark Theme */
  --color-primary: #64B5F6;
  --color-primary-dark: #42A5F5;
  --color-primary-light: rgba(100, 181, 246, 0.15);
  --color-income: #66BB6A;
  --color-income-bg: rgba(102, 187, 106, 0.15);
  --color-expense: #EF5350;
  --color-expense-bg: rgba(239, 83, 80, 0.15);
  --color-balance: #64B5F6;
  --color-balance-bg: rgba(100, 181, 246, 0.15);
  --color-warning: #FFA726;
  --color-bg: #121212;
  --color-surface: #1E1E1E;
  --color-surface-alt: #2A2A2A;
  --color-text: #E0E0E0;
  --color-text-secondary: #9E9E9E;
  --color-border: #333333;
  --color-shadow: rgba(0, 0, 0, 0.3);

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;

  /* Sizing */
  --nav-height: 56px;
  --header-height: 56px;
  --fab-size: 56px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 50%;
}

/* ==========================================================================
   Light Theme — overrides :root when body has .light class
   ========================================================================== */

body.light {
  --color-primary: #1976D2;
  --color-primary-dark: #1565C0;
  --color-primary-light: rgba(25, 118, 210, 0.1);
  --color-income: #2E7D32;
  --color-income-bg: rgba(46, 125, 50, 0.1);
  --color-expense: #C62828;
  --color-expense-bg: rgba(198, 40, 40, 0.1);
  --color-balance: #1976D2;
  --color-balance-bg: rgba(25, 118, 210, 0.1);
  --color-warning: #E65100;
  --color-bg: #F5F5F5;
  --color-surface: #FFFFFF;
  --color-surface-alt: #EEEEEE;
  --color-text: #212121;
  --color-text-secondary: #616161;
  --color-border: #E0E0E0;
  --color-shadow: rgba(0, 0, 0, 0.08);
}

body.light .form-control {
  color-scheme: light;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  min-height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ==========================================================================
   Layout
   ========================================================================== */

#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  height: var(--header-height);
  padding: 0 var(--space-md);
  background: var(--color-surface);
  color: var(--color-primary);
  font-size: 1.15rem;
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 2px 4px var(--color-shadow);
}

.app-header .header-title {
  flex: 1;
}

.screen-content {
  flex: 1;
  padding: var(--space-md);
  padding-bottom: calc(var(--nav-height) + var(--space-lg));
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
}

/* ==========================================================================
   Bottom Navigation
   ========================================================================== */

.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  height: var(--nav-height);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

/* Scrollbar styling */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }

/* Theme toggle button */
.theme-toggle {
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  padding: var(--space-xs);
  line-height: 1;
  -webkit-tap-highlight-color: transparent;
}

.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  text-decoration: none;
  color: var(--color-text-secondary);
  font-size: 0.7rem;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.2s;
  -webkit-tap-highlight-color: transparent;
  border: none;
  background: none;
  padding: 0;
}

.nav-item .nav-icon {
  font-size: 1.4rem;
  line-height: 1;
}

.nav-item.active {
  color: var(--color-primary);
}

/* More button — hidden on large screens, visible on mobile */
.nav-more-btn {
  display: none;
  flex: 1;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  color: var(--color-text-secondary);
  font-size: 0.7rem;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.2s;
  -webkit-tap-highlight-color: transparent;
  border: none;
  background: none;
  padding: 0;
}

.nav-more-btn .nav-icon {
  font-size: 1.4rem;
  line-height: 1;
}

.nav-more-btn.active {
  color: var(--color-primary);
}

/* Overflow menu — positioned above bottom nav */
.nav-overflow-menu {
  display: none;
  position: fixed;
  bottom: var(--nav-height);
  left: 0;
  right: 0;
  z-index: 99;
  flex-direction: column;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 12px var(--color-shadow);
  transform: translateY(100%);
  transition: transform 0.25s ease;
}

.nav-overflow-menu.open {
  display: flex;
  transform: translateY(0);
}

.nav-overflow-menu .nav-overflow-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  min-height: 44px;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  transition: background 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.nav-overflow-menu .nav-overflow-item:not(:last-child) {
  border-bottom: 1px solid var(--color-border);
}

.nav-overflow-menu .nav-overflow-item:active {
  background: var(--color-surface-alt);
}

.nav-overflow-menu .nav-overflow-item.active {
  color: var(--color-primary);
}

.nav-overflow-menu .nav-overflow-item .nav-icon {
  font-size: 1.3rem;
  line-height: 1;
  width: 28px;
  text-align: center;
}

/* Backdrop behind overflow menu */
.nav-overflow-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: var(--nav-height);
  z-index: 98;
  background: rgba(0, 0, 0, 0.3);
}

.nav-overflow-backdrop.open {
  display: block;
}

/* Mobile: hide overflow items in bottom nav, show More button */
@media (max-width: 480px) {
  .bottom-nav .nav-overflow-item {
    display: none;
  }

  .nav-more-btn {
    display: flex;
  }
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  box-shadow: 0 1px 3px var(--color-shadow);
}

.card-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-sm);
}

/* ==========================================================================
   Balance display
   ========================================================================== */

.balance-amount {
  font-size: 2rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.5px;
}

.balance-label {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

/* ==========================================================================
   Stats row
   ========================================================================== */

.stats-row {
  display: flex;
  gap: var(--space-md);
}

.stat-card {
  flex: 1;
  text-align: center;
  padding: var(--space-md);
  border-radius: var(--radius-md);
}

.stat-card.income {
  background: var(--color-income-bg);
  color: var(--color-income);
}

.stat-card.expense {
  background: var(--color-expense-bg);
  color: var(--color-expense);
}

.stat-value {
  font-size: 1.25rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 500;
  margin-top: 2px;
}

/* ==========================================================================
   Transaction list
   ========================================================================== */

.tx-list {
  list-style: none;
}

.tx-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

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

.tx-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.tx-icon.income {
  background: var(--color-income-bg);
  color: var(--color-income);
}

.tx-icon.expense {
  background: var(--color-expense-bg);
  color: var(--color-expense);
}

.tx-icon.balance {
  background: var(--color-balance-bg);
  color: var(--color-balance);
}

.tx-details {
  flex: 1;
  min-width: 0;
}

.tx-desc {
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tx-meta {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  margin-top: 1px;
}

.tx-amount {
  font-weight: 600;
  font-size: 0.95rem;
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
}

.tx-amount.income {
  color: var(--color-income);
}

.tx-amount.expense {
  color: var(--color-expense);
}

.tx-amount.balance {
  color: var(--color-balance);
}

/* ==========================================================================
   Transaction Totals Bar
   ========================================================================== */

.tx-totals-bar {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: 0 1px 3px var(--color-shadow);
  margin-bottom: var(--space-md);
}

.tx-total-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-xs) 0;
}

.tx-total-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-secondary);
  margin-bottom: 2px;
}

.tx-total-value {
  font-size: 0.95rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.tx-total-item.income .tx-total-value {
  color: var(--color-income);
}

.tx-total-item.expense .tx-total-value {
  color: var(--color-expense);
}

.tx-total-item.net .tx-total-value {
  color: var(--color-text);
}

/* ==========================================================================
   Floating Action Button
   ========================================================================== */

.fab {
  position: fixed;
  bottom: calc(var(--nav-height) + var(--space-md));
  right: var(--space-md);
  width: var(--fab-size);
  height: var(--fab-size);
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: var(--color-bg);
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(100, 181, 246, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s, box-shadow 0.2s;
  z-index: 90;
  -webkit-tap-highlight-color: transparent;
}

.fab:active {
  transform: scale(0.93);
}

/* ==========================================================================
   Scroll to top button
   ========================================================================== */

.scroll-top {
  position: fixed;
  bottom: calc(var(--nav-height) + var(--space-md));
  left: var(--space-md);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: var(--color-bg);
  border: none;
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  z-index: 90;
  display: none;
  box-shadow: 0 2px 8px rgba(100, 181, 246, 0.4);
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.1s;
}

.scroll-top.visible {
  display: flex;
}

.scroll-top:active {
  transform: scale(0.93);
}

/* ==========================================================================
   Forms
   ========================================================================== */

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
}

.form-control {
  width: 100%;
  padding: 10px 12px;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-alt);
  color: var(--color-text);
  font-family: inherit;
  transition: border-color 0.2s;
  color-scheme: dark;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-light);
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23757575' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

/* Toggle group for transaction type */
.toggle-group {
  display: flex;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.toggle-btn {
  flex: 1;
  padding: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  background: var(--color-surface-alt);
  color: var(--color-text-secondary);
  border: none;
  transition: all 0.2s;
  font-family: inherit;
}

.toggle-btn.active.expense {
  background: var(--color-expense);
  color: #fff;
}

.toggle-btn.active.income {
  background: var(--color-income);
  color: #fff;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: opacity 0.2s, transform 0.1s;
  -webkit-tap-highlight-color: transparent;
}

.btn:active {
  transform: scale(0.97);
}

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

.btn-primary {
  background: var(--color-primary);
  color: var(--color-bg);
}

.btn-danger {
  background: var(--color-expense);
  color: var(--color-bg);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-full {
  width: 100%;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

/* ==========================================================================
   Badges / Pills
   ========================================================================== */

.badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.badge-income {
  background: var(--color-income-bg);
  color: var(--color-income);
}

.badge-expense {
  background: var(--color-expense-bg);
  color: var(--color-expense);
}

.badge-balance {
  background: var(--color-balance-bg);
  color: var(--color-balance);
}

.badge-active {
  background: var(--color-income-bg);
  color: var(--color-income);
}

.badge-merged {
  background: var(--color-surface-alt);
  color: var(--color-text-secondary);
}

.badge-type {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.badge-recurring {
  background: var(--color-balance-bg);
  color: var(--color-balance);
  font-size: 0.65rem;
  vertical-align: middle;
}

/* ==========================================================================
   Status / Sync
   ========================================================================== */

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  margin-right: var(--space-xs);
}

.status-dot.connected {
  background: var(--color-income);
}

.status-dot.disconnected {
  background: var(--color-expense);
}

/* ==========================================================================
   Filter bar
   ========================================================================== */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  margin-bottom: var(--space-sm);
}

.filter-bar .form-control {
  flex: 1;
  min-width: 120px;
  padding: 8px 10px;
  font-size: 0.85rem;
}

.filter-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  cursor: pointer;
}

/* ==========================================================================
   Account cards
   ========================================================================== */

.account-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
}

.account-info {
  flex: 1;
}

.account-name {
  font-weight: 600;
  font-size: 1rem;
}

.account-type {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

.account-balance {
  text-align: right;
}

.account-balance-amount {
  font-size: 1.1rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.account-sub-count {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

.balance-not-synced {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  font-style: italic;
  font-weight: 400;
}

.account-children {
  padding: 0 var(--space-md) var(--space-md);
  border-top: 1px solid var(--color-border);
}

.account-child {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.account-child-right {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.account-card-actions {
  display: flex;
  gap: var(--space-xs);
  flex-shrink: 0;
  align-items: center;
  padding-right: var(--space-sm);
}

/* ==========================================================================
   Toast
   ========================================================================== */

.toast-container {
  position: fixed;
  top: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  pointer-events: none;
  width: calc(100% - var(--space-xl));
  max-width: 400px;
}

.toast {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: #fff;
  pointer-events: auto;
  animation: toastIn 0.3s ease;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.toast.success {
  background: var(--color-income);
}

.toast.error {
  background: var(--color-expense);
}

.toast.info {
  background: var(--color-primary);
}

.toast .toast-close {
  margin-left: auto;
  background: none;
  border: none;
  color: inherit;
  font-size: 1.1rem;
  cursor: pointer;
  padding: 0 4px;
  opacity: 0.8;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   Loading / Empty states
   ========================================================================== */

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-full);
  animation: spin 0.7s linear infinite;
  margin: var(--space-xl) auto;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.empty-state {
  text-align: center;
  padding: var(--space-xl);
  color: var(--color-text-secondary);
}

.empty-state .empty-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
}

.empty-state .empty-text {
  font-size: 0.95rem;
}

/* ==========================================================================
   Modal / Overlay
   ========================================================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 200;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  animation: fadeIn 0.2s ease;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  width: 100%;
  max-width: 500px;
  max-height: 85vh;
  overflow-y: auto;
  padding: var(--space-lg);
  animation: slideUp 0.3s ease;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.3rem;
  cursor: pointer;
  color: var(--color-text-secondary);
  padding: var(--space-xs);
}

.modal-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.modal-actions .btn {
  flex: 1;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

/* ==========================================================================
   Confirm dialog
   ========================================================================== */

.confirm-dialog {
  text-align: center;
}

.confirm-dialog p {
  margin-bottom: var(--space-lg);
  font-size: 1rem;
  color: var(--color-text);
}

/* ==========================================================================
   Sync screen
   ========================================================================== */

.sync-option-group {
  display: flex;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: var(--space-md);
}

.sync-option-btn {
  flex: 1;
  padding: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  background: var(--color-surface-alt);
  color: var(--color-text-secondary);
  border: none;
  transition: all 0.2s;
  font-family: inherit;
}

.sync-option-btn.active {
  background: var(--color-primary);
  color: #fff;
}

.sync-results {
  margin-top: var(--space-md);
}

.sync-results .result-item {
  display: flex;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--color-border);
}

.sync-results .result-item:last-child {
  border-bottom: none;
}

/* ==========================================================================
   Delete button on tx items
   ========================================================================== */

.tx-delete {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  cursor: pointer;
  padding: var(--space-xs);
  opacity: 0.6;
  transition: opacity 0.2s, color 0.2s;
  -webkit-tap-highlight-color: transparent;
}

.tx-delete:hover,
.tx-delete:active {
  opacity: 1;
  color: var(--color-expense);
}

/* ==========================================================================
   Chat screen
   ========================================================================== */

.chat-container {
  display: flex;
  flex-direction: column;
  height: calc(100vh - var(--header-height) - var(--nav-height));
  max-width: 800px;
  margin: 0 auto;
  padding: 0;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.chat-bubble {
  max-width: 85%;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  line-height: 1.5;
  word-wrap: break-word;
  white-space: pre-wrap;
}

.chat-bubble.user {
  align-self: flex-end;
  background: var(--color-primary);
  color: #fff;
  border-bottom-right-radius: var(--space-xs);
}

.chat-bubble.assistant {
  align-self: flex-start;
  background: var(--color-surface);
  color: var(--color-text);
  border-bottom-left-radius: var(--space-xs);
  box-shadow: 0 1px 3px var(--color-shadow);
}

.chat-bubble .chat-time {
  display: block;
  font-size: 0.65rem;
  margin-top: var(--space-xs);
  opacity: 0.6;
}

.chat-bubble.user .chat-time {
  text-align: right;
}

.chat-typing {
  align-self: flex-start;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  display: flex;
  gap: 4px;
  align-items: center;
}

.chat-typing .dot {
  width: 8px;
  height: 8px;
  background: var(--color-text-secondary);
  border-radius: var(--radius-full);
  animation: chatBounce 1.4s infinite ease-in-out both;
}

.chat-typing .dot:nth-child(2) { animation-delay: 0.16s; }
.chat-typing .dot:nth-child(3) { animation-delay: 0.32s; }

@keyframes chatBounce {
  0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
  40% { transform: scale(1); opacity: 1; }
}

.chat-input-bar {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.chat-input-bar textarea {
  flex: 1;
  resize: none;
  padding: 10px 12px;
  font-size: 0.95rem;
  font-family: inherit;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
  color: var(--color-text);
  outline: none;
  min-height: 42px;
  max-height: 120px;
  line-height: 1.4;
  color-scheme: dark;
}

body.light .chat-input-bar textarea {
  color-scheme: light;
}

.chat-input-bar textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-light);
}

.chat-send-btn {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: #fff;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.2s;
  -webkit-tap-highlight-color: transparent;
  align-self: flex-end;
}

.chat-send-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.chat-header-actions {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

.chat-clear-btn {
  background: none;
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  padding: var(--space-xs);
  color: var(--color-text-secondary);
  -webkit-tap-highlight-color: transparent;
}

.chat-welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  margin-top: 10vh;
}

.chat-welcome-icon {
  font-size: 3rem;
  margin-bottom: var(--space-sm);
}

.chat-welcome-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.chat-welcome-text {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.chat-suggestions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  width: 100%;
  max-width: 320px;
}

.chat-suggestion {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-primary);
  font-size: 0.85rem;
  font-family: inherit;
  cursor: pointer;
  text-align: left;
  transition: background 0.2s, border-color 0.2s;
  -webkit-tap-highlight-color: transparent;
}

.chat-suggestion:hover,
.chat-suggestion:active {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
}

.chat-session-list {
  max-height: 60vh;
  overflow-y: auto;
}

.chat-session-item {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  transition: background 0.15s;
}

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

.chat-session-item:hover,
.chat-session-item:active {
  background: var(--color-surface-alt);
}

.chat-session-item.active {
  border-left: 3px solid var(--color-primary);
  background: var(--color-primary-light);
}

.chat-session-preview {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-session-meta {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

/* ==========================================================================
   Responsive — Tablet / Desktop
   ========================================================================== */

/* ==========================================================================
   Reports
   ========================================================================== */

.reports-charts {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.chart-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: 0 1px 3px var(--color-shadow);
}

.chart-card canvas {
  max-height: 300px;
}

.report-summary {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.report-summary .stat-card {
  flex: 1;
  text-align: center;
  padding: var(--space-md);
  border-radius: var(--radius-md);
}

.category-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--space-sm);
  font-size: 0.9rem;
}

.category-table th,
.category-table td {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.category-table th {
  font-weight: 600;
  color: var(--color-text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.category-table td:nth-child(2),
.category-table td:nth-child(3),
.category-table th:nth-child(2),
.category-table th:nth-child(3) {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

@media (min-width: 768px) {
  .screen-content {
    padding: var(--space-lg);
    padding-bottom: calc(var(--nav-height) + var(--space-xl));
  }

  .stats-row {
    gap: var(--space-lg);
  }

  .reports-charts {
    grid-template-columns: 1fr 1fr;
  }

  .filter-bar {
    flex-wrap: nowrap;
  }

  .modal {
    border-radius: var(--radius-lg);
    margin-bottom: 10vh;
  }

  .modal-overlay {
    align-items: center;
  }

  .balance-amount {
    font-size: 2.5rem;
  }
}

/* ==========================================================================
   Tab bar
   ========================================================================== */

.tab-bar {
  display: flex;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: var(--space-md);
}

.tab-btn {
  flex: 1;
  padding: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  background: var(--color-surface-alt);
  color: var(--color-text-secondary);
  border: none;
  transition: all 0.2s;
  font-family: inherit;
}

.tab-btn.active {
  background: var(--color-primary);
  color: #fff;
}

/* ==========================================================================
   Taxonomy cards
   ========================================================================== */

.taxonomy-card {
  padding: var(--space-sm) var(--space-md);
}

.taxonomy-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.taxonomy-card-info {
  flex: 1;
  min-width: 0;
}

.taxonomy-card-name {
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.taxonomy-card-desc {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-top: 2px;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  align-items: center;
}

.taxonomy-card-actions {
  display: flex;
  gap: var(--space-xs);
  flex-shrink: 0;
}

.btn-icon {
  background: none;
  border: none;
  font-size: 1rem;
  cursor: pointer;
  padding: var(--space-xs);
  color: var(--color-text-secondary);
  transition: color 0.2s;
  -webkit-tap-highlight-color: transparent;
}

.btn-icon:hover,
.btn-icon:active {
  color: var(--color-primary);
}

.badge-default {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

/* ==========================================================================
   Merchant toolbar
   ========================================================================== */

.merchant-toolbar {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  align-items: center;
}

.merchant-toolbar .form-control {
  flex: 1;
}

/* ==========================================================================
   Confidence score
   ========================================================================== */

.confidence-score {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

/* ==========================================================================
   Autocomplete dropdown
   ========================================================================== */

.autocomplete-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 12px var(--color-shadow);
  z-index: 150;
  max-height: 200px;
  overflow-y: auto;
}

.autocomplete-item {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.15s;
}

.autocomplete-item:hover,
.autocomplete-item:active {
  background: var(--color-surface-alt);
}

/* ==========================================================================
   Goal cards
   ========================================================================== */

.goal-card {
  padding: var(--space-md);
}

.goal-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.goal-card-info {
  flex: 1;
  min-width: 0;
}

.goal-card-name {
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: var(--space-xs);
}

.goal-chart-container {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
}

.goal-deadline {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

.goal-deadline.urgent {
  color: var(--color-expense);
  font-weight: 600;
}

.goal-deadline.overdue {
  color: var(--color-expense);
  font-weight: 700;
}

.goal-deadline.soon {
  color: var(--color-warning);
  font-weight: 600;
}

.goal-progress-bar {
  width: 100%;
  height: 8px;
  background: var(--color-surface-alt);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: var(--space-md);
}

.goal-progress-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.4s ease;
}

.goal-fill-normal {
  background: var(--color-primary);
}

.goal-fill-warning {
  background: var(--color-warning);
}

.goal-fill-danger {
  background: var(--color-expense);
}

.goal-fill-complete {
  background: var(--color-income);
}

.goal-stats {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.goal-stat {
  flex: 1;
  text-align: center;
}

.goal-stat-label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-secondary);
  margin-bottom: 2px;
}

.goal-stat-value {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.goal-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* ==========================================================================
   Budget Cards
   ========================================================================== */

.budget-card {
  padding: var(--space-md);
}

.budget-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xs);
}

.budget-card-name {
  font-weight: 700;
  font-size: 1.05rem;
}

.budget-card-period {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.budget-progress-bar {
  width: 100%;
  height: 8px;
  background: var(--color-surface-alt);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: var(--space-xs);
}

.budget-progress-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.4s ease;
}

.budget-fill-on-track {
  background: var(--color-income);
}

.budget-fill-warning {
  background: var(--color-warning);
}

.budget-fill-exceeded {
  background: var(--color-expense);
}

.budget-pct {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.budget-status {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.budget-status-on-track {
  background: var(--color-income-bg);
  color: var(--color-income);
}

.budget-status-warning {
  background: rgba(255, 167, 38, 0.15);
  color: var(--color-warning);
}

.budget-status-exceeded {
  background: var(--color-expense-bg);
  color: var(--color-expense);
}

.budget-stats {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.budget-stat {
  flex: 1;
  text-align: center;
}

.budget-stat-label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-secondary);
  margin-bottom: 2px;
}

.budget-stat-value {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.budget-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* ==========================================================================
   Export toolbar
   ========================================================================== */

.export-toolbar {
  display: flex;
  gap: var(--space-sm);
  padding: 0 0 var(--space-sm);
}

/* ==========================================================================
   Settings
   ========================================================================== */

.settings-section {
  max-width: 480px;
  margin: 0 auto;
}

.settings-field {
  margin-bottom: var(--space-md);
}

.settings-field label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 600;
  font-size: 0.9rem;
}

.settings-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  flex-wrap: wrap;
}

.settings-status {
  margin-top: var(--space-md);
  padding: var(--space-sm);
  border-radius: var(--radius);
  font-size: 0.9rem;
  min-height: 1.5em;
}

.settings-status.success {
  color: var(--clr-success);
}

.settings-status.error {
  color: var(--clr-danger);
}

.password-wrapper {
  display: flex;
  gap: var(--space-xs);
  align-items: center;
}

.password-wrapper input {
  flex: 1;
}

.password-wrapper .btn {
  flex-shrink: 0;
}