/* A 4px spacing rhythm and 1.25 type scale shared by every screen. */
:root {
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --text-xs: .75rem;
  --text-sm: .875rem;
  --text-base: 1rem;
  --text-lg: 1.25rem;
  --text-xl: 1.5625rem;
  --text-2xl: 1.953rem;
  --text-3xl: 2.441rem;
  --page-gutter: clamp(16px, 3vw, 40px);
  --card-padding: clamp(16px, 2.2vw, 24px);
  --bg: #f4f5f1;
  --surface: #ffffff;
  --surface-2: #f5f7f3;
  --muted: #626f68;
  --line: #e1e7e0;
  --radius: 20px;
  --shadow: 0 4px 24px rgba(21, 37, 31, .035);
  line-height: 1.5;
}
body { -webkit-font-smoothing: antialiased; }
[hidden] { display: none !important; }
button, input, select { -webkit-tap-highlight-color: transparent; }
button { transition: background-color .16s ease, box-shadow .16s ease; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible {
  outline: 3px solid #4b987d;
  outline-offset: 3px;
}
.main-content { min-width: 0; max-width: 1440px; padding: 24px var(--page-gutter) calc(104px + env(safe-area-inset-bottom)); }
.topbar { gap: var(--space-4); margin-bottom: var(--space-6); }
.topbar > div:first-child { min-width: 0; }
h1, h2, .balance-line strong, .budget-summary strong, .donut strong, .amount-field input {
  font-family: inherit;
  font-weight: 650;
  line-height: 1.2;
  letter-spacing: -.035em;
}
h1 { font-size: clamp(1.5625rem, 1.1rem + 2vw, 2.441rem); overflow-wrap: anywhere; }
h2 { font-size: var(--text-lg); letter-spacing: -.025em; }
.eyebrow { margin-bottom: var(--space-2); font-size: .6875rem; line-height: 1.45; letter-spacing: .075em; }
.avatar { width: 44px; height: 44px; flex: 0 0 auto; }
.period-row, .filter-chips { gap: var(--space-2); padding: 0 0 var(--space-5); }
.period, .filter-chips button { min-height: 44px; padding: 10px 16px; font-size: var(--text-sm); font-weight: 600; }
.balance-card { padding: var(--space-6); border-radius: 24px; box-shadow: 0 12px 28px rgba(18,48,39,.12); }
.balance-top { min-height: 112px; align-items: flex-start; gap: var(--space-4); }
.balance-top > div:first-child { min-width: 0; }
.muted-on-dark { font-size: var(--text-sm); }
.balance-line { gap: var(--space-3); margin-top: var(--space-2); }
.balance-line strong { min-width: 0; font-size: clamp(1.953rem, 6.5vw, 3.052rem); overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.icon-button, .icon-button.on-dark { width: 44px; height: 44px; flex: 0 0 auto; }
.balance-grid { gap: var(--space-3); padding-top: var(--space-5); }
.balance-grid > div + div { padding-left: var(--space-3); border-left: 1px solid #ffffff24; }
.balance-grid span { font-size: var(--text-xs); white-space: normal; overflow: visible; line-height: 1.4; }
.balance-grid strong { margin-top: var(--space-2); font-size: clamp(.875rem, 2.8vw, 1.25rem); overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.quick-actions { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-2); margin: var(--space-6) 0; padding: 0; }
.quick-actions button { display: flex; min-width: 0; min-height: 88px; flex-direction: column; align-items: center; justify-content: center; gap: var(--space-2); padding: 8px 4px; border: 0; border-radius: 16px; background: transparent; font-size: var(--text-xs); line-height: 1.35; text-align: center; }
.quick-actions button > span:last-child { margin: 0; overflow: visible; white-space: normal; }
.quick-icon { width: 44px; height: 44px; margin: 0; border-radius: 14px; flex-shrink: 0; }
.dashboard-grid, .settings-grid, .budget-grid { gap: var(--space-4); }
.dashboard-grid { grid-template-columns: minmax(0, 1fr); }
.dashboard-grid > .card { grid-column: auto; }
.card { min-width: 0; border-color: var(--line); }
.cashflow-card, .category-card, .budget-card, .map-card, .recent-card, .settings-card, .budget-item { padding: var(--card-padding); }
.card-head { gap: var(--space-3); margin-bottom: var(--space-5); align-items: center; }
.card-head > div { min-width: 0; }
.card-head .eyebrow { margin-bottom: var(--space-1); }
.text-button { min-height: 44px; flex-shrink: 0; padding: 8px; margin-right: -8px; font-size: var(--text-sm); font-weight: 650; }
.cashflow-card .card-head { flex-wrap: wrap; }
.chart-legend { display: flex; flex-wrap: wrap; gap: var(--space-4); font-size: var(--text-xs); }
.chart-wrap { min-height: 220px; }
.chart-svg { display: block; height: 220px; }
.chart-label { font-family: inherit; font-size: 12px; }
.category-content { grid-template-columns: minmax(100px, .9fr) minmax(0, 1.1fr); gap: var(--space-4); }
.donut { width: min(100%, 160px); height: auto; aspect-ratio: 1; justify-self: center; }
.donut > div { width: 65%; height: auto; aspect-ratio: 1; padding: var(--space-2); }
.donut strong { font-size: clamp(.875rem, 2vw, 1.25rem); overflow-wrap: anywhere; }
.donut span { font-size: var(--text-xs); }
.category-legend { gap: 0; }
.category-legend button { min-height: 44px; gap: var(--space-2); font-size: var(--text-xs); }
.category-legend strong { font-size: var(--text-xs); font-weight: 650; overflow-wrap: anywhere; }
.category-legend span { white-space: normal; }
.budget-summary strong { font-size: var(--text-2xl); }
.budget-summary span, .budget-meta, .card-intro { font-size: var(--text-sm); }
.budget-meta { gap: var(--space-3); }
.budget-meta span:last-child { text-align: right; }
.status-pill, .map-count { font-size: var(--text-xs); flex-shrink: 0; }
.primary-button, .secondary-button { min-height: 48px; padding: 12px 16px; border-radius: 12px; font-size: var(--text-sm); font-weight: 650; }
.map-card { display: flex; flex-direction: column; }
.map-card .card-intro { margin-bottom: var(--space-4); }
#spendingMap { height: 280px; min-height: 280px; flex: 1 0 280px; border-radius: 12px; }
.map-footer { align-items: center; gap: var(--space-2); margin-top: var(--space-2); font-size: .6875rem; }
.transaction-row { grid-template-columns: 40px minmax(0, 1fr) minmax(0, auto); gap: var(--space-3); padding: var(--space-4) 0; }
.transaction-row:first-child { padding-top: 0; }
.transaction-icon { width: 40px; height: 40px; border-radius: 12px; }
.transaction-main strong, .transaction-amount strong { font-size: var(--text-sm); font-weight: 650; }
.transaction-main span, .transaction-amount small { font-size: var(--text-xs); line-height: 1.45; }
.transaction-amount { min-width: 0; max-width: 120px; font-variant-numeric: tabular-nums; }
.transaction-amount strong { overflow-wrap: anywhere; }
.recent-card .transaction-list { grid-template-columns: minmax(0, 1fr); }
.recent-card .transaction-row { border-bottom: 1px solid var(--line); }
.recent-card .transaction-row:last-child { border: 0; }
.transaction-page-card { padding: var(--card-padding); }
.view-toolbar { gap: var(--space-3); margin-bottom: var(--space-4); }
.search-box { min-width: 0; }
.search-box input { min-width: 0; font-size: 16px; }
.section-lead { gap: var(--space-4); margin-bottom: var(--space-6); }
.section-lead h2 { font-size: var(--text-xl); }
.section-lead p:not(.eyebrow) { font-size: var(--text-sm); }
.budget-grid { grid-template-columns: minmax(0, 1fr); }
.budget-item-top { flex-wrap: wrap; gap: var(--space-4); }
.budget-item-name strong, .budget-numbers strong { font-size: var(--text-sm); }
.budget-item-name span, .budget-numbers span { font-size: var(--text-xs); }
.setting-row { flex-wrap: wrap; gap: var(--space-4); padding: var(--space-5) 0; }
.setting-row strong, .setting-action strong { font-size: var(--text-sm); }
.setting-row small, .setting-action small, .about-card p { font-size: var(--text-xs); line-height: 1.6; }
.setting-row select { max-width: 100%; min-height: 48px; font-size: 16px; }
.setting-action { gap: var(--space-3); min-height: 76px; }
.setting-action > span { min-width: 0; }
.setting-action svg { flex-shrink: 0; }
.bottom-nav { padding-top: var(--space-2); }
.bottom-nav button, .bottom-nav .add-nav small { font-size: .6875rem; }
.bottom-nav button { gap: var(--space-1); }
.bottom-nav button.active svg { stroke-width: 2.3; }
.bottom-nav .add-nav > span { width: 56px; height: 56px; }
.sheet { max-height: 94dvh; padding: 12px var(--card-padding) calc(24px + env(safe-area-inset-bottom)); }
.sheet-head { gap: var(--space-4); margin-bottom: var(--space-6); }
.type-switch { padding: var(--space-1); gap: var(--space-1); }
.type-switch button { min-height: 44px; font-size: var(--text-sm); }
.amount-field { padding: var(--space-6) 0; }
.form-grid { gap: var(--space-4); grid-template-columns: minmax(0, 1fr); }
.amount-field > span, .form-grid label > span { font-size: var(--text-xs); margin-bottom: var(--space-2); }
.form-grid input, .form-grid select { min-height: 48px; font-size: 16px; padding: 12px; }
.location-box { align-items: stretch; flex-direction: column; gap: var(--space-3); margin: var(--space-5) 0; padding: var(--space-4); }
.location-box strong { font-size: var(--text-sm); }
.location-box small { max-width: none; white-space: normal; font-size: var(--text-xs); }
.location-box button { font-size: var(--text-sm); }
.toast { font-size: var(--text-sm); }
body.dark { --muted: #b0beb5; --green-600: #86cbb1; --green-800: #b4e1cd; }
body.dark .period.active, body.dark .filter-chips button.active { background: #b4e1cd; border-color: #b4e1cd; color: #102d25; }
body.dark .transaction-amount strong.negative { color: #f1a18f; }
body.dark .quick-icon.income { color: #b4e1cd; }

@media (min-width: 480px) {
  .form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .location-box { flex-direction: row; align-items: center; }
  .location-box > div { flex: 1; }
}
@media (min-width: 720px) {
  .dashboard-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dashboard-grid .cashflow-card, .dashboard-grid .map-card, .dashboard-grid .recent-card { grid-column: 1 / -1; }
  .budget-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .quick-actions button { flex-direction: row; gap: var(--space-3); min-height: 72px; padding: var(--space-3); border: 1px solid var(--line); background: var(--surface); font-size: var(--text-sm); }
  .recent-card .transaction-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 var(--space-6); }
}
@media (min-width: 1024px) {
  .app-shell { grid-template-columns: 216px minmax(0, 1fr); }
  .sidebar { padding: 32px 16px; }
  .main-content { padding-top: var(--space-8); padding-bottom: var(--space-10); }
  .brand { gap: var(--space-2); }
  .brand strong { font-family: inherit; font-size: var(--text-base); letter-spacing: -.04em; }
  .brand small { font-size: .6875rem; }
  .nav-item { min-height: 48px; font-size: var(--text-sm); }
  .side-tip { padding: var(--space-4); }
  .side-tip strong { font-size: var(--text-sm); }
  .side-tip p { font-size: var(--text-xs); }
  .balance-card { padding: var(--space-8); }
  .balance-orbit { display: grid; }
  .settings-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sheet { padding: var(--space-8); width: 520px; max-height: 100dvh; }
}
@media (min-width: 1360px) {
  .app-shell { grid-template-columns: 240px minmax(0, 1fr); }
  .dashboard-grid { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .dashboard-grid .cashflow-card { grid-column: span 7; }
  .dashboard-grid .category-card { grid-column: span 5; }
  .dashboard-grid .budget-card { grid-column: span 5; }
  .dashboard-grid .map-card { grid-column: span 7; grid-row: span 2; }
  .dashboard-grid .recent-card { grid-column: span 5; }
  .recent-card .transaction-list { grid-template-columns: minmax(0, 1fr); }
  .budget-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 359px) {
  .balance-card { padding: var(--space-4); }
  .balance-grid { gap: var(--space-2); }
  .balance-grid > div + div { padding-left: var(--space-2); }
  .category-content { grid-template-columns: minmax(0, 1fr); }
  .donut { width: 160px; }
  .transaction-row { grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-2); }
  .transaction-icon { display: none; }
}
/* Account identity remains compact and usable on small screens. */
.profile-name { max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text); font-size: 14px; font-weight: 600; text-decoration: none; }
.top-actions .avatar { flex-shrink: 0; display: grid; place-items: center; overflow: hidden; text-decoration: none; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.header-logout { margin: 0; }
.header-logout button { min-height: 44px; white-space: nowrap; }
@media(max-width: 600px) { .topbar { flex-wrap: wrap; gap: 12px; } .top-actions { width: 100%; justify-content: flex-end; gap: 10px; } .profile-name { margin-right: auto; max-width: calc(100vw - 200px); } }