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

:root {
  /* Dark theme colors */
  --on-surface: #e0e0e0;
  --on-surface-variant: #8888aa;
  --outline: #2a2a4a;
  --outline-variant: #2a2a4a;
  --surface: #1a1a2e;
  --surface-dim: #16213e;
  --surface-container-lowest: #0f0e17;
  --surface-container-low: #0f0e17;
  --surface-container: #16213e;
  --surface-container-high: #1a1a2e;
  --surface-container-highest: #2a2a4a;
  --primary: #f7d060;
  --primary-container: rgba(247, 208, 96, 0.15);
  --on-primary-container: #f7d060;
  --inverse-surface: #e0e0e0;
  --inverse-on-surface: #0f0e17;

  /* Spacing (8px grid) */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-8: 32px;
  --sp-10: 40px;
  --sp-12: 48px;

  /* Shape */
  --shape-sm: 8px;
  --shape-md: 12px;
  --shape-lg: 16px;
  --shape-xl: 28px;
  --shape-full: 9999px;
}

html {
  font-size: 16px;
}

body {
  font-family: 'Roboto', 'Google Sans', -apple-system, sans-serif;
  background: var(--surface-container-low);
  color: var(--on-surface);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* ===== Header ===== */

header {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: 0 var(--sp-6);
  height: 64px;
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  font-family: 'Google Sans', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--on-surface);
  text-decoration: none;
  letter-spacing: -0.01em;
}

/* ===== Search (MD3 search bar) ===== */

.search-wrapper {
  position: relative;
  max-width: 360px;
  flex: 1;
}

.search-icon {
  position: absolute;
  left: var(--sp-3);
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  color: var(--on-surface-variant);
  pointer-events: none;
}

#county-search {
  width: 100%;
  height: 40px;
  padding: 0 var(--sp-4) 0 40px;
  border: none;
  border-radius: var(--shape-full);
  background: var(--surface-container);
  font-family: inherit;
  font-size: 0.875rem;
  color: var(--on-surface);
  outline: none;
  transition: background 0.2s, box-shadow 0.2s;
}

#county-search::placeholder {
  color: var(--on-surface-variant);
}

#county-search:focus {
  background: var(--surface-container-high);
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.search-results {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--surface);
  border: 1px solid var(--outline);
  border-radius: var(--shape-lg);
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  max-height: 360px;
  overflow-y: auto;
  list-style: none;
  z-index: 200;
  padding: var(--sp-2) 0;
}

.search-results.active {
  display: block;
}

.search-results li {
  padding: var(--sp-3) var(--sp-4);
  cursor: pointer;
  font-size: 0.875rem;
  display: flex;
  align-items: baseline;
  gap: var(--sp-2);
  border-radius: 0;
  transition: background 0.1s;
}

.search-results li:hover,
.search-results li.highlighted {
  background: var(--surface-container);
}

.search-results .county-name {
  font-weight: 500;
  color: var(--on-surface);
}

.search-results .state-name {
  color: var(--on-surface-variant);
  font-size: 0.8rem;
}

/* ===== Main ===== */

main {
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--sp-6) var(--sp-12);
  flex: 1;
}

/* ===== Breadcrumb ===== */

.breadcrumb {
  padding: var(--sp-4) 0 0;
  font-size: 0.8rem;
  color: var(--on-surface-variant);
}

.breadcrumb:empty {
  display: none;
}

.breadcrumb a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb .sep {
  margin: 0 var(--sp-2);
  color: var(--outline);
}

/* ===== Page heading ===== */

.page-heading {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-top: var(--sp-6);
  flex-wrap: wrap;
}

.page-title {
  font-family: 'Google Sans', sans-serif;
  font-size: 1.75rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--on-surface);
}

.fy-badge {
  display: inline-flex;
  align-items: center;
  font-family: 'Google Sans', sans-serif;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--primary);
  background: var(--primary-container);
  padding: 4px 12px;
  border-radius: var(--shape-full);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.page-subtitle {
  color: var(--on-surface-variant);
  font-size: 0.875rem;
  margin-top: var(--sp-1);
  margin-bottom: var(--sp-6);
}

/* ===== State grid (landing) ===== */

.state-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--sp-2);
}

.state-card {
  display: flex;
  flex-direction: column;
  padding: var(--sp-5) var(--sp-5);
  background: var(--surface);
  border-radius: var(--shape-lg);
  text-decoration: none;
  color: var(--on-surface);
  transition: background 0.15s, box-shadow 0.15s;
}

.state-card:hover {
  background: var(--surface-container);
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.state-card .state-name {
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.3;
}

.state-card .state-total {
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--on-surface-variant);
  font-variant-numeric: tabular-nums;
  margin-top: 4px;
}

/* ===== County grid (state page) ===== */

.county-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--sp-2);
}

.county-tile {
  display: flex;
  flex-direction: column;
  padding: var(--sp-5) var(--sp-5);
  background: var(--surface);
  border-radius: var(--shape-lg);
  text-decoration: none;
  color: var(--on-surface);
  transition: background 0.15s, box-shadow 0.15s;
}

.county-tile:hover {
  background: var(--surface-container);
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.county-tile .county-name {
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.3;
}

.county-tile .county-total {
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--on-surface-variant);
  font-variant-numeric: tabular-nums;
  margin-top: var(--sp-1);
}

/* ===== County detail ===== */

.county-header {
  margin-bottom: var(--sp-8);
}

.county-header h1 {
  font-family: 'Google Sans', sans-serif;
  font-size: 2rem;
  font-weight: 400;
  letter-spacing: -0.01em;
}

.county-header .state-label {
  color: var(--on-surface-variant);
  font-size: 0.875rem;
  margin-top: var(--sp-1);
}

/* Summary chips */

.summary-row {
  display: flex;
  gap: var(--sp-3);
  margin-bottom: var(--sp-8);
  flex-wrap: wrap;
}

.summary-chip {
  flex: 1;
  min-width: 160px;
  background: var(--surface);
  border-radius: var(--shape-lg);
  padding: var(--sp-5) var(--sp-6);
  text-align: center;
}

.summary-chip.primary {
  background: var(--primary-container);
  color: var(--on-primary-container);
}

.summary-chip .label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--on-surface-variant);
  font-weight: 500;
}

.summary-chip.primary .label {
  color: var(--on-primary-container);
  opacity: 0.7;
}

.summary-chip .value {
  font-family: 'Google Sans', sans-serif;
  font-size: 1.5rem;
  font-weight: 500;
  margin-top: var(--sp-1);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

/* Expenditure sections */

.expenditure-section {
  margin-bottom: var(--sp-8);
}

.expenditure-section h2 {
  font-family: 'Google Sans', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: var(--on-surface);
  margin-bottom: var(--sp-3);
  padding-left: var(--sp-5);
}

.exp-table {
  background: var(--surface);
  border-radius: var(--shape-lg);
  overflow: hidden;
}

.exp-row {
  display: flex;
  align-items: center;
  padding: var(--sp-4) var(--sp-5);
  transition: background 0.1s;
}

.exp-row:not(.is-total):hover {
  background: var(--surface-container-low);
}

.exp-row + .exp-row {
  border-top: 1px solid var(--outline-variant);
}

.exp-row.is-total {
  background: var(--surface-container-low);
}

.exp-label {
  flex: 1;
  font-size: 0.875rem;
  color: var(--on-surface);
}

.is-total .exp-label {
  font-weight: 500;
}

.exp-pct {
  width: 48px;
  text-align: right;
  font-size: 0.75rem;
  color: var(--on-surface-variant);
  font-variant-numeric: tabular-nums;
  margin-right: var(--sp-5);
}

.exp-bar-track {
  width: 100px;
  height: 4px;
  background: var(--surface-container-high);
  border-radius: 2px;
  overflow: hidden;
  margin-right: var(--sp-5);
}

.exp-bar-fill {
  height: 100%;
  background: var(--primary);
  opacity: 0.8;
  border-radius: 2px;
  transition: width 0.4s cubic-bezier(0.2, 0, 0, 1);
}

.is-total .exp-bar-track,
.is-total .exp-pct {
  visibility: hidden;
}

.exp-value {
  font-size: 0.875rem;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  text-align: right;
  min-width: 110px;
  color: var(--on-surface);
}

/* ===== Footer ===== */

footer {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-6);
  font-size: 0.75rem;
  color: var(--on-surface-variant);
}

footer .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--outline);
}

/* ===== County comparison ===== */

.compare-pcts {
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
  color: var(--on-surface-variant);
  white-space: nowrap;
}

.compare-arrow {
  font-size: 0.625rem;
  margin: 0 2px;
}

.arrow-up {
  color: #4ecdc4;
}

.arrow-down {
  color: #ff6b6b;
}

.compare-nat {
  color: var(--on-surface-variant);
  opacity: 0.6;
}

/* ===== Data notes ===== */

.data-note {
  font-size: 0.75rem;
  font-style: italic;
  color: var(--on-surface-variant);
  margin-top: calc(-1 * var(--sp-6));
  margin-bottom: var(--sp-8);
  text-align: center;
}

/* ===== About page ===== */

.about-content {
  max-width: 640px;
  margin-top: var(--sp-6);
}

.about-content p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--on-surface);
  margin-bottom: var(--sp-5);
}

.about-content h2 {
  font-family: 'Google Sans', sans-serif;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--on-surface);
  margin-top: var(--sp-8);
  margin-bottom: var(--sp-3);
}

.about-content a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

.about-content a:hover {
  text-decoration: underline;
}

/* ===== Charts ===== */

.chart-section {
  margin-bottom: var(--sp-8);
}

.chart-section-title {
  font-family: 'Google Sans', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: var(--on-surface);
  margin-bottom: var(--sp-3);
}

.chart-section-desc {
  font-size: 0.8rem;
  color: var(--on-surface-variant);
  margin-bottom: var(--sp-4);
}

.chart-card {
  background: var(--surface);
  border-radius: var(--shape-lg);
  padding: var(--sp-6);
  overflow-x: auto;
}

.chart-card-row {
  display: flex;
  gap: var(--sp-4);
  flex-wrap: wrap;
  justify-content: center;
}

.chart-card-row .chart-card {
  flex: 1;
  min-width: 340px;
}

.chart-axis text {
  font-family: 'Roboto', sans-serif;
  font-size: 11px;
  fill: #8888aa;
}

.chart-axis line, .chart-axis path {
  stroke: #2a2a4a;
}

.chart-axis path {
  display: none;
}

.chart-grid line {
  stroke: rgba(42, 42, 74, 0.6);
  stroke-dasharray: 2,2;
}

.chart-grid path {
  display: none;
}

.chart-tooltip {
  position: fixed;
  background: #e0e0e0;
  color: #0f0e17;
  padding: 8px 12px;
  border-radius: var(--shape-sm);
  font-size: 12px;
  line-height: 1.4;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 1000;
  max-width: 260px;
}

.chart-legend {
  display: flex;
  gap: var(--sp-4);
  flex-wrap: wrap;
  margin-bottom: var(--sp-3);
  font-size: 0.75rem;
  color: var(--on-surface-variant);
}

.chart-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.chart-legend-swatch {
  width: 10px;
  height: 10px;
  border-radius: 3px;
}

/* Header nav link */

.header-nav {
  margin-left: auto;
}

.header-nav a {
  font-family: 'Google Sans', sans-serif;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--primary);
  text-decoration: none;
  padding: 6px 16px;
  border-radius: var(--shape-full);
  transition: background 0.15s;
}

.header-nav a:hover {
  background: var(--primary-container);
}

/* ===== View transitions ===== */

#app {
  animation: mdFadeIn 0.2s cubic-bezier(0.2, 0, 0, 1);
}

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

/* ===== Responsive ===== */

@media (max-width: 640px) {
  header {
    padding: 0 var(--sp-4);
    height: 56px;
  }

  main {
    padding: 0 var(--sp-4) var(--sp-10);
  }

  .page-title {
    font-size: 1.375rem;
  }

  .state-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-2);
  }

  .summary-row {
    flex-direction: column;
    gap: var(--sp-2);
  }

  .summary-chip {
    min-width: unset;
  }

  .exp-bar-track {
    display: none;
  }

  .exp-pct {
    margin-right: var(--sp-3);
  }

  .exp-value {
    min-width: 80px;
  }

  .county-header h1 {
    font-size: 1.5rem;
  }
}

@media (max-width: 360px) {
  .state-grid {
    grid-template-columns: 1fr;
  }
}