/* ─────────────────────────────────────────────────────────────────────────────
   WealthMate — Styles
   Pico.css overrides + app-specific components
   ───────────────────────────────────────────────────────────────────────────── */

:root {
  /* Brand — green/teal finance palette */
  --pico-primary:          #10b981;
  --pico-primary-hover:    #059669;
  --pico-primary-focus:    rgba(16, 185, 129, 0.25);
  --wm-accent:             #10b981;
  --wm-accent-light:       #34d399;
  --wm-accent-dark:        #047857;
  --wm-danger:             #ef4444;
  --wm-danger-hover:       #dc2626;
  --wm-warning:            #f59e0b;
  --wm-positive:           #10b981;
  --wm-negative:           #ef4444;

  /* Surface colors (dark defaults) */
  --pico-background-color: #0a0f0d;
  --pico-card-background-color: #111a16;
  --pico-card-border-color: rgba(16, 185, 129, 0.1);
  --wm-surface-dim: rgba(255,255,255,0.04);
  --wm-border-dim: rgba(255,255,255,0.08);

  /* Typography */
  --pico-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --pico-font-size: 16px;
  --pico-line-height: 1.6;

  /* Layout */
  --app-max-width: 480px;
  --app-padding: 1rem;
  --bottom-nav-height: 64px;
}

/* ── Base layout ───────────────────────────────────────────────────────────── */
body {
  max-width: var(--app-max-width);
  margin: 0 auto;
  padding: 0;
  min-height: 100vh;
  background: var(--pico-background-color);
}

#app-content {
  padding: 0 var(--app-padding);
  padding-bottom: calc(var(--bottom-nav-height) + 1.5rem);
  padding-top: 0.5rem;
}

/* ── Loading & error states ────────────────────────────────────────────────── */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1rem;
  color: var(--pico-muted-color);
  gap: 0.75rem;
}

.loading::before {
  content: '';
  width: 2rem;
  height: 2rem;
  border: 3px solid var(--pico-card-border-color);
  border-top-color: var(--wm-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.global-loading {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.error-banner {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 8px;
  padding: 0.6rem 0.8rem;
  color: #fca5a5;
  font-size: 0.85rem;
  margin: 0.75rem 0;
}

.success-banner {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 8px;
  padding: 0.6rem 0.8rem;
  color: var(--wm-accent-light);
  font-size: 0.85rem;
  margin: 0.75rem 0;
}

/* ── Utility ───────────────────────────────────────────────────────────────── */
.muted { color: var(--pico-muted-color); font-size: 0.875rem; }
.badge {
  display: inline-block;
  font-size: 0.7rem;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  background: var(--pico-primary-focus);
  color: var(--wm-accent-light);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.card-grid {
  display: grid;
  gap: 0.75rem;
  margin: 0.75rem 0;
}
.view-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}
.view-header h3 { margin: 0; }
.view-subtitle { font-size: 0.85rem; margin: -0.25rem 0 0.75rem; }

/* ── Auth views ────────────────────────────────────────────────────────────── */
.auth-container {
  max-width: var(--app-max-width);
  margin: 0 auto;
  padding: 2rem var(--app-padding);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.auth-logo {
  text-align: center;
  margin-bottom: 2rem;
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--wm-accent), var(--wm-accent-dark));
  color: #fff;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.auth-logo h1 {
  margin: 0.25rem 0 0.25rem;
  font-size: 1.75rem;
}

.auth-switch {
  text-align: center;
  margin-top: 1.5rem;
  font-size: 0.9rem;
}

.auth-switch a {
  color: var(--wm-accent-light);
  cursor: pointer;
}

/* ── App header ────────────────────────────────────────────────────────────── */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem var(--app-padding);
  border-bottom: 1px solid var(--pico-card-border-color);
  background: var(--pico-background-color);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon-sm {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--wm-accent), var(--wm-accent-dark));
  color: #fff;
  font-size: 0.9rem;
  font-weight: 700;
}

/* ── Buttons ───────────────────────────────────────────────────────────────── */
.btn-primary-block {
  width: 100%;
  background: var(--wm-accent);
  border-color: var(--wm-accent);
  color: #fff;
}
.btn-primary-block:hover {
  background: var(--wm-accent-dark);
  border-color: var(--wm-accent-dark);
}

.btn-outline-block {
  width: 100%;
  background: transparent;
  border: 1px solid var(--wm-accent);
  color: var(--wm-accent-light);
}
.btn-outline-block:hover {
  background: var(--pico-primary-focus);
}

.btn-sm {
  padding: 0.3rem 0.75rem;
  font-size: 0.8rem;
  border-radius: 6px;
}

.btn-back {
  background: none;
  border: none;
  color: var(--wm-accent-light);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
}

.btn-danger {
  background: var(--wm-danger);
  border-color: var(--wm-danger);
  color: #fff;
}
.btn-danger:hover {
  background: var(--wm-danger-hover);
}

.btn-danger-block {
  width: 100%;
  background: transparent;
  border: 1px solid var(--wm-danger);
  color: #fca5a5;
  margin-top: 1rem;
}
.btn-danger-block:hover {
  background: rgba(239, 68, 68, 0.1);
}

.btn-success {
  background: var(--wm-accent) !important;
  border-color: var(--wm-accent) !important;
}

.btn-use-prev {
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--wm-accent-light);
  cursor: pointer;
  white-space: nowrap;
}

/* ── Net Worth Card ────────────────────────────────────────────────────────── */
.nw-card {
  background: linear-gradient(135deg, #111a16, #0d2818);
  border: 1px solid rgba(16, 185, 129, 0.15);
  border-radius: 16px;
  padding: 1.5rem;
  text-align: center;
  margin: 1rem 0;
}

.nw-label {
  font-size: 0.85rem;
  color: var(--pico-muted-color);
  margin-bottom: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nw-value {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--wm-accent-light);
  margin: 0.25rem 0;
}

.nw-breakdown {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 0.5rem;
  font-size: 0.85rem;
}

.nw-assets { color: var(--wm-positive); }
.nw-liabilities { color: var(--wm-negative); }

.nw-date {
  margin-top: 0.5rem;
  font-size: 0.8rem;
}

/* ── Dashboard ─────────────────────────────────────────────────────────────── */
.dash-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 1rem 0;
}

#couple-status-bar {
  margin-bottom: 0.5rem;
}

.couple-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 0.8rem;
  border-radius: 8px;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.12);
  font-size: 0.85rem;
}

.couple-bar-solo {
  background: rgba(245, 158, 11, 0.08);
  border-color: rgba(245, 158, 11, 0.15);
  color: var(--wm-warning);
}

.recent-card {
  background: var(--pico-card-background-color);
  border: 1px solid var(--pico-card-border-color);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.recent-card-date {
  font-size: 0.85rem;
  color: var(--pico-muted-color);
}

.recent-card-nw {
  font-weight: 600;
  color: var(--wm-accent-light);
}

/* ── Wizard ────────────────────────────────────────────────────────────────── */
.wizard-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.wizard-header h3 {
  flex: 1;
  margin: 0;
  font-size: 1.1rem;
}

.wizard-steps {
  display: flex;
  gap: 0.35rem;
}

.wizard-steps .step {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.06);
  color: var(--pico-muted-color);
  transition: all 0.2s;
}

.wizard-steps .step.active {
  background: var(--wm-accent);
  color: #fff;
}

.wizard-steps .step.done {
  background: var(--wm-accent-dark);
  color: #fff;
}

.wizard-step {
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Account card in wizard */
.checkin-account-group {
  margin-bottom: 1.25rem;
}

.checkin-account-group h5 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--wm-accent-light);
  margin-bottom: 0.5rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--pico-card-border-color);
}

.checkin-acct-card {
  background: var(--pico-card-background-color);
  border: 1px solid var(--pico-card-border-color);
  border-radius: 10px;
  padding: 0.75rem;
  margin-bottom: 0.5rem;
}

.checkin-acct-name {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.15rem;
}

.checkin-acct-type {
  font-size: 0.75rem;
  color: var(--pico-muted-color);
}

.checkin-acct-prev {
  font-size: 0.8rem;
  color: var(--pico-muted-color);
  margin: 0.35rem 0;
}

.checkin-acct-inputs {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-top: 0.35rem;
}

.checkin-acct-inputs input {
  font-size: 0.9rem;
  padding: 0.4rem 0.6rem;
  margin-bottom: 0;
}

.checkin-acct-inputs .input-group {
  flex: 1;
}

.checkin-acct-inputs .input-group label {
  font-size: 0.7rem;
  margin-bottom: 0.15rem;
  color: var(--pico-muted-color);
}

.checkin-saved-indicator {
  font-size: 0.7rem;
  color: var(--wm-accent-light);
  opacity: 0;
  transition: opacity 0.3s;
}

.checkin-saved-indicator.show {
  opacity: 1;
}

/* ── Accounts list ─────────────────────────────────────────────────────────── */
.account-group-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--wm-accent-light);
  margin: 1rem 0 0.35rem;
  padding-bottom: 0.2rem;
  border-bottom: 1px solid var(--pico-card-border-color);
}

.account-card {
  background: var(--pico-card-background-color);
  border: 1px solid var(--pico-card-border-color);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: border-color 0.2s;
}

.account-card:hover {
  border-color: var(--wm-accent);
}

.account-card-info h5 {
  margin: 0;
  font-size: 0.95rem;
}

.account-card-info .muted {
  font-size: 0.8rem;
}

.account-card-arrow {
  color: var(--pico-muted-color);
  font-size: 1.1rem;
}

/* ── Checkin review ────────────────────────────────────────────────────────── */
.review-group { margin-bottom: 1rem; }

.review-row {
  display: flex;
  justify-content: space-between;
  padding: 0.35rem 0;
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.review-row-name { color: var(--pico-color); }
.review-row-value { font-weight: 600; }
.review-row-missing { opacity: 0.6; }
.review-row-missing .review-row-name { color: #f59e0b; }
.badge-new {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
  font-size: 0.65rem;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  vertical-align: middle;
}
.review-warning {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: #f59e0b;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.checkin-review-totals {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.15);
  border-radius: 10px;
  padding: 1rem;
  margin: 1rem 0;
  text-align: center;
}

.review-total-nw {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--wm-accent-light);
}

/* ── Chart ─────────────────────────────────────────────────────────────────── */
.history-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 1rem;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.1);
}
.history-tab {
  flex: 1;
  padding: 0.5rem;
  background: transparent;
  border: none;
  color: var(--pico-muted-color);
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.history-tab.active {
  background: var(--pico-primary);
  color: #fff;
}

.chart-container {
  background: var(--pico-card-background-color);
  border: 1px solid var(--pico-card-border-color);
  border-radius: 12px;
  padding: 1rem;
  margin: 1rem 0;
}

.history-table {
  font-size: 0.85rem;
}

.acct-toggles {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.75rem 0;
}
.acct-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.78rem;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  cursor: pointer;
  white-space: nowrap;
}
.acct-toggle input { display: none; }
.acct-toggle-swatch {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}
.acct-toggle:has(input:not(:checked)) {
  opacity: 0.4;
}
.table-divider td {
  padding: 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.change-positive { color: var(--wm-positive); }
.change-negative { color: var(--wm-negative); }

/* ── Cost Tracker tool selector ────────────────────────────────────────────── */
.cost-tools {
  display: flex;
  gap: 0;
  margin-bottom: 1rem;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.1);
}
.cost-tool {
  flex: 1;
  padding: 0.5rem;
  background: transparent;
  border: none;
  color: var(--pico-muted-color);
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.cost-tool.active {
  background: var(--pico-primary);
  color: #fff;
}

/* ── Monthly Bills ─────────────────────────────────────────────────────────── */
.monthly-summary-card {
  background: linear-gradient(135deg, #111a16, #0d2818);
  border: 1px solid rgba(16, 185, 129, 0.15);
  border-radius: 12px;
  padding: 1rem 1.25rem;
}
.monthly-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
}
.monthly-summary-row strong {
  font-size: 1.25rem;
  color: var(--wm-accent-light);
}
.monthly-summary-row + .monthly-summary-row {
  margin-top: 0.35rem;
  font-size: 0.8rem;
}

.bill-card {
  background: var(--pico-card-background-color);
  border: 1px solid var(--pico-card-border-color);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: border-color 0.2s;
}
.bill-card:hover {
  border-color: var(--wm-accent);
}
.bill-card-info h5 {
  margin: 0;
  font-size: 0.95rem;
}
.bill-card-info .muted {
  font-size: 0.75rem;
}
.bill-card-amount {
  text-align: right;
}
.bill-card-amount .amount {
  font-weight: 600;
  color: var(--wm-accent-light);
  font-size: 0.95rem;
}
.bill-card-amount .freq {
  font-size: 0.7rem;
  color: var(--pico-muted-color);
}
.bill-category-badge {
  display: inline-block;
  font-size: 0.65rem;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--wm-accent-light);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-left: 0.35rem;
}

/* ── Expenses (Big Purchases) ─────────────────────────────────────────────── */
.expense-group-card {
  background: var(--pico-card-background-color);
  border: 1px solid var(--pico-card-border-color);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  cursor: pointer;
  transition: border-color 0.2s;
}

.expense-group-card:hover {
  border-color: var(--wm-accent);
}

.expense-group-card h5 {
  margin: 0 0 0.25rem;
  font-size: 0.95rem;
}

.expense-group-total {
  font-weight: 600;
  color: var(--wm-accent-light);
}

.expense-item-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 0.9rem;
}

.expense-item-delete {
  background: none;
  border: none;
  color: var(--wm-danger);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 0.2rem 0.4rem;
}

/* ── Settings ──────────────────────────────────────────────────────────────── */
.settings-card {
  background: var(--pico-card-background-color);
  border: 1px solid var(--pico-card-border-color);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}

.settings-card h5 {
  margin: 0 0 0.5rem;
  color: var(--wm-accent-light);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.settings-card-danger {
  border-color: rgba(239, 68, 68, 0.2);
  margin-top: 2rem;
}
.settings-card-danger h5 {
  color: var(--wm-danger);
}

.invite-row {
  display: flex;
  gap: 0.5rem;
}

.invite-row input {
  flex: 1;
}

.invite-row button {
  white-space: nowrap;
}

.invite-banner {
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  margin-bottom: 0.75rem;
}
.invite-banner p { margin: 0 0 0.5rem; font-size: 0.9rem; }
.invite-banner .invite-actions { display: flex; gap: 0.5rem; }

.invite-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1rem 0;
  color: var(--pico-muted-color);
  font-size: 0.8rem;
}
.invite-divider::before,
.invite-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: rgba(255,255,255,0.1);
}

.invite-card {
  background: rgba(16, 185, 129, 0.06);
  border: 1px solid rgba(16, 185, 129, 0.12);
  border-radius: 8px;
  padding: 0.65rem 0.8rem;
  margin-top: 0.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.invite-actions {
  display: flex;
  gap: 0.35rem;
}

.invite-actions button {
  padding: 0.2rem 0.6rem;
  font-size: 0.75rem;
  border-radius: 4px;
}

/* ── Bottom Navigation ─────────────────────────────────────────────────────── */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: var(--app-max-width);
  height: var(--bottom-nav-height);
  background: #0d1410;
  border-top: 1px solid var(--pico-card-border-color);
  display: flex;
  align-items: center;
  justify-content: space-around;
  z-index: 100;
  padding: 0;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  background: none;
  border: none;
  color: var(--pico-muted-color);
  font-size: 0.65rem;
  cursor: pointer;
  padding: 0.5rem 0.25rem;
  flex: 1;
  transition: color 0.2s;
}

.nav-item .nav-icon {
  font-size: 1.25rem;
}

.nav-item.active {
  color: var(--wm-accent-light);
}

.nav-item:hover {
  color: var(--wm-accent);
}

/* ── Dialog overrides ──────────────────────────────────────────────────────── */
dialog {
  max-width: calc(var(--app-max-width) - 2rem);
  width: 100%;
}

dialog article {
  background: var(--pico-card-background-color);
  border: 1px solid var(--pico-card-border-color);
}

.dialog-close {
  background: none;
  border: none;
  color: var(--pico-muted-color);
  cursor: pointer;
}

.input-row {
  display: flex;
  gap: 0.75rem;
}
.input-col { flex: 1; }

.sub-field {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 8px;
  padding: 0.75rem;
  margin-bottom: 0.5rem;
}

.extra-details-toggle {
  margin-top: 0.5rem;
}
.extra-details-toggle summary {
  cursor: pointer;
  color: var(--pico-primary);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

/* ── Empty state ───────────────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--pico-muted-color);
  font-size: 0.9rem;
}

/* ── Theme toggle ─────────────────────────────────────────────────────────── */
.theme-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 100%;
  overflow: hidden;
}
.toggle-switch {
  position: relative;
  width: 44px;
  min-width: 44px;
  height: 24px;
  display: inline-block;
}
.toggle-switch input { display: none; }
.toggle-slider {
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.15);
  border-radius: 24px;
  cursor: pointer;
  transition: background 0.2s;
}
.toggle-slider::before {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  left: 3px;
  top: 3px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
}
.toggle-switch input:checked + .toggle-slider {
  background: var(--pico-primary);
}
.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(20px);
}

/* ── Light mode overrides ─────────────────────────────────────────────────── */
[data-theme="light"] {
  --pico-background-color: #e8ece9;
  --pico-card-background-color: #f0f3f1;
  --pico-card-border-color: rgba(16, 185, 129, 0.18);
  --pico-color: #1a2e24;
  --pico-muted-color: #5a6e64;
  --wm-surface-dim: rgba(0,0,0,0.04);
  --wm-border-dim: rgba(0,0,0,0.1);
}
[data-theme="light"] .app-header {
  background: #dfe5e1;
  border-bottom-color: rgba(0,0,0,0.1);
}
[data-theme="light"] .bottom-nav {
  background: #dfe5e1;
  border-top-color: rgba(0,0,0,0.1);
}
[data-theme="light"] .nw-card {
  background: linear-gradient(135deg, #059669, #10b981);
  color: #fff;
}
[data-theme="light"] .sub-field {
  background: rgba(0,0,0,0.03);
  border-color: rgba(0,0,0,0.08);
}
[data-theme="light"] .checkin-acct-card {
  background: #f0f3f1;
  border-color: rgba(0,0,0,0.1);
}
[data-theme="light"] .invite-banner {
  background: rgba(59, 130, 246, 0.08);
  border-color: rgba(59, 130, 246, 0.2);
}
[data-theme="light"] .toggle-slider {
  background: rgba(0,0,0,0.18);
}
[data-theme="light"] .chart-container {
  background: #f0f3f1;
}
[data-theme="light"] .history-tab {
  color: #5a6e64;
}
[data-theme="light"] .couple-bar {
  background: rgba(16, 185, 129, 0.08);
}
[data-theme="light"] .acct-toggle {
  background: rgba(0,0,0,0.04);
  border-color: rgba(0,0,0,0.1);
}
[data-theme="light"] .review-warning {
  background: rgba(245, 158, 11, 0.08);
}
[data-theme="light"] .cost-tools {
  border-color: rgba(0,0,0,0.12);
}
[data-theme="light"] .cost-tool {
  color: #5a6e64;
}
[data-theme="light"] .monthly-summary-card {
  background: linear-gradient(135deg, #059669, #10b981);
  color: #fff;
}
[data-theme="light"] .bill-category-badge {
  background: rgba(16, 185, 129, 0.12);
}
[data-theme="light"] dialog article {
  background: #f0f3f1;
  border-color: rgba(0,0,0,0.1);
}

/* ── Settings email row ────────────────────────────────────────────────────── */
.settings-email-row {
  margin-top: 0.75rem;
}
.settings-email-input-row {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
}
.settings-email-input-row input {
  flex: 1;
  margin-bottom: 0;
}

/* ── Recovery Code ─────────────────────────────────────────────────────────── */
.recovery-code-card {
  text-align: center;
  padding: 0.5rem 0;
}
.recovery-warning {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.25);
  border-radius: 8px;
  padding: 0.6rem 0.8rem;
  color: var(--wm-warning);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}
.recovery-code-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background: var(--wm-surface-dim);
  border: 1px solid var(--wm-border-dim);
  border-radius: 8px;
  padding: 0.75rem 1rem;
}
.recovery-code-display code {
  font-family: 'Courier New', monospace;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--wm-accent-light);
  word-break: break-all;
}

/* ── Responsive — already mobile-first at 480px ────────────────────────────── */
@media (min-width: 481px) {
  body {
    padding: 0;
  }
}

/* ── Entrance animations ──────────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Card list stagger */
.recent-card,
.account-card,
.bill-card,
.expense-group-card,
.expense-item-row {
  animation: fadeUp 200ms ease both;
  animation-delay: calc(var(--i, 0) * 45ms);
}

/* ── Enhanced hover lift ───────────────────────────────────────────────────── */
.account-card {
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}
.account-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.bill-card {
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}
.bill-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.expense-group-card {
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}
.expense-group-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.recent-card {
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}
.recent-card:hover {
  border-color: rgba(16, 185, 129, 0.35);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* ── Lucide icon sizing ─────────────────────────────────────────────────────── */
.lucide {
  width: 1em;
  height: 1em;
  vertical-align: -0.125em;
  stroke-width: 2;
}

/* Nav icons */
.nav-icon .lucide {
  width: 1.35rem;
  height: 1.35rem;
  vertical-align: middle;
}

/* Header button icons */
.btn-sm .lucide,
.btn-back .lucide {
  width: 0.9em;
  height: 0.9em;
}

/* ── Auth illustration ──────────────────────────────────────────────────────── */
.auth-illustration {
  display: flex;
  justify-content: center;
  margin-bottom: 0.5rem;
  opacity: 0.9;
}

.auth-illustration svg {
  max-width: 200px;
  height: auto;
}

/* An installed app already knows what it is: no link to the welcome page. */
@media (display-mode: standalone) { .auth-welcome-link { display: none; } }