/* =============================================================================
   BuzuRadar – Main Stylesheet
   Mobile-first responsive layout · WCAG 2.1 AA · Leaflet compatible
   =============================================================================

   TABLE OF CONTENTS
   -----------------
   1.  CSS Custom Properties (Design Tokens)
   2.  CSS Reset & Base
   3.  Accessibility Utilities
   4.  Layout Primitives (.container, .site-main)
   5.  Skip Link
   6.  Site Header & Navigation
   7.  Site Footer
   8.  Buttons (.btn, variants)
   9.  Form Elements (.form-group, .form-input, .form-label, etc.)
   10. Autocomplete & Filter Chips
   11. Map Page (.map-page, .filter-panel, .map-container, .leaflet-map)
   12. Map Toolbar & Status Indicators
   13. Bus Detail Panel
   14. Reports Page (.page-reports, .reports-layout, etc.)
   15. History Page (.page-history, .timeline-section, .comparison-grid, etc.)
   16. Privacy Page (.page-privacy, .privacy-layout, etc.)
   17. Cards (.card, .metrics-grid, .metric-card)
   18. Advertisement Units (.ad-unit, variants)
   19. Feedback States (.spinner, .error-banner, .no-results)
   20. Data Tables
   21. Page Headers
   22. Responsive Overrides (768 px tablet, 1024 px desktop)
   23. Touch Gesture Support
   24. Print Styles
   25. WCAG 2.1 AA Accessibility Styles (Requirements 5.4, 5.5)
   ============================================================================= */

/* =============================================================================
   1. CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ============================================================================= */

:root {
  /* --- Brand colours --- */
  --color-primary: #1a56db; /* Blue 600 – main brand */
  --color-primary-dark: #1e429f; /* Blue 700 – hover/active */
  --color-primary-light: #e8f0fe; /* Blue 50  – tinted bg */

  /* --- Semantic colours --- */
  --color-success: #057a55; /* Green 700 */
  --color-success-light: #def7ec;
  --color-warning: #b45309; /* Amber 700 */
  --color-warning-light: #fef3c7;
  --color-danger: #c81e1e; /* Red 700 */
  --color-danger-light: #fde8e8;

  /* --- Neutral palette --- */
  --color-text: #111827; /* Gray 900 – body text */
  --color-text-secondary: #4b5563; /* Gray 600 – secondary text */
  --color-text-muted: #6b7280; /* Gray 500 – muted/hint */
  --color-text-inverse: #ffffff;

  --color-bg: #ffffff;
  --color-bg-subtle: #f9fafb; /* Gray 50 */
  --color-bg-muted: #f3f4f6; /* Gray 100 */

  --color-border: #e5e7eb; /* Gray 200 */
  --color-border-strong: #d1d5db; /* Gray 300 */

  /* --- Status dot colours --- */
  --color-fresh: #059669; /* Green 600 */
  --color-stale: #d97706; /* Amber 600 */
  --color-missing: #6b7280; /* Gray 500 */

  /* --- Operational taxonomy colours --- */
  --color-consortium-transcarioca: #2563eb;
  --color-consortium-internorte: #16a34a;
  --color-consortium-intersul: #f59e0b;
  --color-consortium-santa-cruz: #dc2626;

  /* --- Public status colours --- */
  --color-health-ok: #169b62;
  --color-health-warn: #d99000;
  --color-health-bad: #d64545;
  --color-health-unknown: #cbd5e1;
  --color-health-ink: #172033;

  /* --- Specialized accents --- */
  --color-accent-purple: #7c3aed;
  --color-accent-purple-light: #ede9fe;
  --color-kpi-blue-light: #dbeafe;
  --color-kpi-red-light: #fee2e2;

  /* --- Typography --- */
  --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: ui-monospace, 'Cascadia Code', 'Source Code Pro', Menlo, Consolas, monospace;

  --text-xs: 0.75rem; /* 12 px */
  --text-sm: 0.875rem; /* 14 px */
  --text-base: 1rem; /* 16 px */
  --text-lg: 1.125rem; /* 18 px */
  --text-xl: 1.25rem; /* 20 px */
  --text-2xl: 1.5rem; /* 24 px */
  --text-3xl: 1.875rem; /* 30 px */

  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  --leading-tight: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;

  /* --- Spacing scale --- */
  --spacing-1: 0.25rem; /*  4 px */
  --spacing-2: 0.5rem; /*  8 px */
  --spacing-3: 0.75rem; /* 12 px */
  --spacing-4: 1rem; /* 16 px */
  --spacing-5: 1.25rem; /* 20 px */
  --spacing-6: 1.5rem; /* 24 px */
  --spacing-8: 2rem; /* 32 px */
  --spacing-10: 2.5rem; /* 40 px */
  --spacing-12: 3rem; /* 48 px */
  --spacing-16: 4rem; /* 64 px */

  /* --- Border radius --- */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* --- Shadows --- */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

  /* --- Transitions --- */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-expo: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* --- Layout --- */
  --header-height: 56px;
  --container-max: 1280px;
  --container-padding: var(--spacing-4);

  /* --- Touch targets (WCAG 2.5.5) --- */
  --touch-target: 44px;

  /* --- Z-index scale --- */
  --z-base: 0;
  --z-raised: 10;
  --z-overlay: 100;
  --z-modal: 200;
  --z-toast: 300;
  --z-header: 400;
}

/* =============================================================================
   2. CSS RESET & BASE
   ============================================================================= */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--font-normal);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  /* Prevent horizontal overflow on mobile */
  overflow-x: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

/* Leaflet dynamically sizes its SVGs via width/height attributes;
   the global max-width:100% collapses them inside absolute-positioned panes. */
.leaflet-pane svg {
  max-width: none;
}

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover {
  color: var(--color-primary-dark);
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
  color: var(--color-text);
}

p {
  line-height: var(--leading-relaxed);
}

/* Remove default button styles */
button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Remove default input styles */
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
}

/* Fieldset reset */
fieldset {
  border: none;
}

/* Table reset */
table {
  border-collapse: collapse;
  width: 100%;
}

/* Hidden attribute */
[hidden] {
  display: none !important;
}

/* =============================================================================
   3. ACCESSIBILITY UTILITIES
   ============================================================================= */

/* Screen-reader only – visually hidden but accessible */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Visible focus ring – WCAG 2.4.7 */
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Remove focus ring for mouse users */
:focus:not(:focus-visible) {
  outline: none;
}

/* High-contrast mode support */
@media (forced-colors: active) {
  :focus-visible {
    outline: 3px solid ButtonText;
  }
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* =============================================================================
   4. LAYOUT PRIMITIVES
   ============================================================================= */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.site-main {
  flex: 1;
  /* Offset for fixed header */
  padding-top: var(--header-height);
}

/* Map page: keep header offset, just suppress overflow */
.site-main:has(.map-page) {
  overflow: hidden;
}

/* Fallback for browsers without :has() */
.site-main--map {
  overflow: hidden;
}

/* =============================================================================
   5. SKIP LINK
   ============================================================================= */

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--spacing-4);
  z-index: calc(var(--z-header) + 10);
  padding: var(--spacing-2) var(--spacing-4);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-weight: var(--font-semibold);
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--spacing-2);
  outline: 3px solid var(--color-text-inverse);
  outline-offset: 2px;
}

/* =============================================================================
   6. SITE HEADER & NAVIGATION
   ============================================================================= */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  height: var(--header-height);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--spacing-4);
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  text-decoration: none;
  color: var(--color-text);
  font-weight: var(--font-bold);
  font-size: var(--text-lg);
  flex-shrink: 0;
  min-height: var(--touch-target);
}

.site-logo:hover {
  color: var(--color-primary);
}

.site-logo--small .logo-text {
  font-size: var(--text-base);
}

.logo-icon {
  flex-shrink: 0;
}

.logo-text {
  letter-spacing: -0.02em;
}

/* Navigation */
.site-nav {
  display: flex;
  align-items: center;
}

/* Mobile hamburger toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: var(--touch-target);
  height: var(--touch-target);
  padding: var(--spacing-2);
  border-radius: var(--radius-md);
  color: var(--color-text);
  transition: background-color var(--transition-fast);
}

.nav-toggle:hover {
  background-color: var(--color-bg-muted);
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: currentColor;
  border-radius: var(--radius-full);
  transition:
    transform var(--transition-normal),
    opacity var(--transition-fast);
}

/* Nav menu – mobile: hidden by default, shown when aria-expanded=true */
.nav-menu {
  display: none;
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-2) 0;
  z-index: var(--z-overlay);
}

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

.nav-menu li {
  display: block;
}

.nav-link {
  display: flex;
  align-items: center;
  min-height: var(--touch-target);
  padding: var(--spacing-3) var(--spacing-6);
  color: var(--color-text);
  text-decoration: none;
  font-weight: var(--font-medium);
  font-size: var(--text-base);
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast);
}

.nav-link:hover {
  background-color: var(--color-bg-muted);
  color: var(--color-primary);
}

.nav-link--active {
  color: var(--color-primary);
  font-weight: var(--font-semibold);
}

.nav-link--active::before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 1em;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  margin-right: var(--spacing-3);
}

/* =============================================================================
   7. SITE FOOTER
   ============================================================================= */

.site-footer {
  background: var(--color-bg-subtle);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-6);
  padding-block: var(--spacing-8);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-normal);
}

.footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-1) var(--spacing-4);
}

.footer-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  min-height: var(--touch-target);
  display: inline-flex;
  align-items: center;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.footer-meta {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
}

.footer-data-source,
.footer-copyright {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: var(--leading-normal);
}

/* =============================================================================
   8. BUTTONS
   ============================================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  min-height: var(--touch-target);
  min-width: var(--touch-target);
  padding: var(--spacing-2) var(--spacing-4);
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  line-height: 1;
  text-decoration: none;
  border-radius: var(--radius-md);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast);
  white-space: nowrap;
  user-select: none;
  /* Touch action for mobile */
  touch-action: manipulation;
}

.btn:disabled,
.btn[aria-disabled='true'] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Primary */
.btn--primary {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-inverse);
}

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
}

.btn--primary:active {
  background-color: var(--color-primary-dark);
  box-shadow: inset 0 2px 4px rgb(0 0 0 / 0.15);
}

/* Ghost / outline */
.btn--ghost {
  background-color: transparent;
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

.btn--ghost:hover {
  background-color: var(--color-bg-muted);
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

/* Secondary quiet action */
.btn--secondary {
  background-color: var(--color-bg-subtle);
  border-color: var(--color-border);
  color: var(--color-text-secondary);
}

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

/* Success */
.btn--success {
  background-color: var(--color-success);
  border-color: var(--color-success);
  color: var(--color-text-inverse);
}

.btn--success:hover {
  background-color: #046c4e;
  border-color: #046c4e;
  color: var(--color-text-inverse);
}

/* Outline */
.btn--outline {
  background-color: transparent;
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

.btn--outline:hover {
  background-color: var(--color-bg-muted);
}

/* Period button active state */
.period-btn--active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-inverse);
}

.period-btn--active:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
}

/* Toggle button active state */
.toggle-btn--active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-inverse);
}

.toggle-btn--active:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
}

/* Icon-only button */
.btn--icon {
  padding: var(--spacing-2);
  border-radius: var(--radius-md);
  background-color: transparent;
  border-color: transparent;
  color: var(--color-text-secondary);
}

.btn--icon:hover {
  background-color: var(--color-bg-muted);
  color: var(--color-text);
}

/* Large variant */
.btn--large {
  font-size: var(--text-base);
  padding: var(--spacing-3) var(--spacing-6);
  min-height: 48px;
}

/* Button icon */
.btn-icon {
  flex-shrink: 0;
}

/* Button label (for icon+text combos) */
.btn-label {
  font-size: var(--text-xs);
}

/* =============================================================================
   9. FORM ELEMENTS
   ============================================================================= */

.form-group {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text);
  line-height: var(--leading-tight);
}

.form-label__optional {
  font-weight: var(--font-normal);
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  margin-left: var(--spacing-1);
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: var(--leading-normal);
}

.form-input {
  width: 100%;
  min-height: var(--touch-target);
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  /* Prevent zoom on iOS */
  font-size: max(16px, var(--text-base));
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

.form-input:hover {
  border-color: var(--color-primary);
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgb(26 86 219 / 0.2);
  outline: none;
}

.form-input[aria-invalid='true'] {
  border-color: var(--color-danger);
}

/* Search input wrapper (icon overlay) */
.search-input-wrapper {
  position: relative;
}

.search-input-wrapper .form-input {
  padding-right: var(--spacing-10);
}

.search-icon {
  position: absolute;
  right: var(--spacing-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

/* Select */
.form-select {
  min-height: var(--touch-target);
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--text-sm);
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  cursor: pointer;
  appearance: auto;
}

.form-select--small {
  min-height: 36px;
  padding: var(--spacing-1) var(--spacing-2);
  font-size: var(--text-xs);
}

/* Checkbox */
.checkbox-group,
.radio-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.checkbox-label,
.radio-label {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-2);
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--color-text);
  min-height: var(--touch-target);
  padding-block: var(--spacing-2);
  /* Touch action */
  touch-action: manipulation;
}

.checkbox-input,
.radio-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.checkbox-custom,
.radio-custom {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border: 2px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  transition:
    border-color var(--transition-fast),
    background-color var(--transition-fast);
  margin-top: 1px;
}

.radio-custom {
  border-radius: var(--radius-full);
}

.checkbox-input:checked + .checkbox-custom {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M13.5 4.5l-7 7L3 8'  stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 12px;
}

.radio-input:checked + .radio-custom {
  border-color: var(--color-primary);
  background-color: var(--color-primary);
  box-shadow: inset 0 0 0 3px var(--color-bg);
}

.checkbox-input:focus-visible + .checkbox-custom,
.radio-input:focus-visible + .radio-custom {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Radio content */
.radio-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.radio-title {
  font-weight: var(--font-medium);
}

.radio-desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* Form actions */
.form-actions,
.filter-actions,
.preview-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
  align-items: center;
  padding-top: var(--spacing-2);
}

/* =============================================================================
   10. AUTOCOMPLETE & FILTER CHIPS
   ============================================================================= */

.autocomplete-list {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  z-index: var(--z-overlay);
  background: var(--color-bg);
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  max-height: 240px;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.autocomplete-list li {
  display: block;
}

.autocomplete-list [role='option'] {
  display: flex;
  align-items: center;
  min-height: var(--touch-target);
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--text-sm);
  color: var(--color-text);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  touch-action: manipulation;
}

.autocomplete-list [role='option']:hover,
.autocomplete-list [role='option'][aria-selected='true'] {
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
}

/* Filter chips */
.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-1);
  padding: var(--spacing-1) var(--spacing-3);
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  min-height: 32px;
  touch-action: manipulation;
}

.filter-chip button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  color: var(--color-primary-dark);
  transition: background-color var(--transition-fast);
  touch-action: manipulation;
}

.filter-chip button:hover {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
}

/* Enriched chip: route metadata shown below the line ID */
.filter-chip {
  align-items: flex-start;
  border-radius: var(--radius-md);
  padding: var(--spacing-2) var(--spacing-3);
}

.filter-chip__meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.filter-chip__line-id {
  font-weight: var(--font-semibold);
  font-size: var(--text-xs);
}

.filter-chip__long-name {
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
  opacity: 0.85;
}

.filter-chip__details {
  font-size: 10px;
  color: var(--color-text-secondary);
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-1);
  align-items: center;
  margin-top: 1px;
}

.service-badge {
  display: inline-block;
  padding: 0 4px;
  background: var(--color-bg-muted);
  border-radius: var(--radius-sm);
  font-size: 10px;
  font-weight: var(--font-medium);
  line-height: 1.5;
  color: var(--color-text-secondary);
}

/* Active state for icon-only toggle buttons (e.g., stops layer toggle) */
.btn--icon.is-active {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

/* =============================================================================
   11. MAP PAGE
   ============================================================================= */

/*
 * Mobile-first: map fills the full viewport height below the header.
 * On desktop (≥1024px) the filter panel becomes a sidebar.
 *
 * touch-action values ensure Leaflet can handle pan/zoom gestures
 * without the browser intercepting them (Requirement 5.3).
 */

.map-page {
  position: relative;
  display: flex;
  flex-direction: column;
  height: calc(100vh - var(--header-height));
  overflow: hidden;
  /* Scope Leaflet's internal z-indexes so they don't compete with the fixed header */
  isolation: isolate;
}

/* ---- Filter panel ---- */
.filter-panel {
  position: relative;
  z-index: var(--z-raised);
  width: 100%;
  max-height: 42vh;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: var(--spacing-3);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
  transform: none;
}

.filter-panel.is-open {
  transform: none;
}

.filter-panel__header {
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-2);
}

.filter-panel__title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
}

.filter-panel__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-target);
  height: var(--touch-target);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  transition: background-color var(--transition-fast);
  touch-action: manipulation;
}

.filter-panel__close:hover {
  background-color: var(--color-bg-muted);
}

/* ---- Filter form ---- */
.filter-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.filter-panel .form-hint {
  display: none;
}

.filter-panel .checkbox-group {
  flex-direction: row;
  gap: var(--spacing-2);
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: thin;
}

.filter-panel .checkbox-label {
  flex: 0 0 auto;
  align-items: center;
  min-height: 38px;
  padding: var(--spacing-2) var(--spacing-3);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.filter-panel .filter-actions {
  padding-top: 0;
}

.filter-panel .filter-actions .btn {
  flex: 1 1 120px;
}

.map-toolbar__filter-toggle {
  display: none;
}

/* ---- Inline search in toolbar ---- */
.map-toolbar__search {
  position: relative;
  flex: 1 1 200px;
  min-width: 0;
  order: -1;
}

.map-toolbar__search .search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.map-toolbar__search .search-icon {
  position: absolute;
  left: var(--spacing-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

.map-toolbar__search .form-input {
  width: 100%;
  height: 38px;
  padding: var(--spacing-2) var(--spacing-3) var(--spacing-2) calc(var(--spacing-3) + 22px);
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
}

.map-toolbar__search .form-input:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: -1px;
  border-color: var(--color-primary);
}

.autocomplete-list--toolbar {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  z-index: var(--z-overlay, 50);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  max-height: 50vh;
  overflow-y: auto;
}

/* ---- Map container ---- */
.map-container {
  position: relative;
  z-index: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ---- Leaflet map ---- */
.leaflet-map {
  flex: 1;
  width: 100%;
  min-height: 0;
  background: var(--color-bg-muted);
  /* Allow all touch gestures for Leaflet pan/zoom */
  touch-action: none;
  /* Prevent text selection during drag */
  user-select: none;
  -webkit-user-select: none;
}

.leaflet-map--history {
  min-height: 300px;
}

/* Leaflet container override – ensure it fills its parent */
.leaflet-map .leaflet-container {
  width: 100%;
  height: 100%;
}

/* ---- Bus count badge ---- */
.bus-count-badge {
  position: absolute;
  bottom: var(--spacing-4);
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-raised);
  background: rgb(0 0 0 / 0.65);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--radius-full);
  pointer-events: none;
  white-space: nowrap;
}

/* ---- Map legend ---- */
.map-legend {
  position: absolute;
  bottom: calc(var(--spacing-6) + 20px); /* above Leaflet attribution */
  left: var(--spacing-3);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  pointer-events: none;
  z-index: var(--z-raised);
  box-shadow: var(--shadow-sm);
}

.map-legend__item {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  white-space: nowrap;
}

.map-legend__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.map-legend__dot--transcarioca {
  background: var(--color-consortium-transcarioca);
}
.map-legend__dot--internorte {
  background: var(--color-consortium-internorte);
}
.map-legend__dot--intersul {
  background: var(--color-consortium-intersul);
}
.map-legend__dot--santacruz {
  background: var(--color-consortium-santa-cruz);
}

.map-legend__hint {
  margin-top: 4px;
  font-size: 11px;
  color: var(--color-text-muted);
}

/* =============================================================================
   12. MAP TOOLBAR & STATUS INDICATORS
   ============================================================================= */

.map-toolbar {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-3);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
  z-index: var(--z-raised);
}

.map-trust-strip {
  flex: 1 0 100%;
  order: 8;
  min-width: 0;
}

.map-trust-strip__list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--spacing-2);
  margin: 0;
}

.map-trust-strip__item {
  min-width: 0;
  margin: 0;
  padding: var(--spacing-2) var(--spacing-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-subtle);
}

.map-trust-strip__label {
  margin-bottom: var(--spacing-1);
  color: var(--color-text-muted);
  font-size: 0.68rem;
  font-weight: var(--font-bold);
  letter-spacing: 0.04em;
  line-height: var(--leading-tight);
  text-transform: uppercase;
}

.map-trust-strip__value {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  color: var(--color-text);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.map-trust-strip__link {
  color: var(--color-primary-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.map-trust-strip__link:hover {
  color: var(--color-primary-dark);
}

/* On narrow screens the inline search takes the full first row */
@media (max-width: 767px) {
  .map-toolbar__search {
    flex: 1 0 100%;
  }

  .map-trust-strip__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  .map-trust-strip__list {
    grid-template-columns: 1fr;
  }
}

/* Freshness indicator */
.freshness-indicator {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  flex: 1;
  min-width: 0;
}

.freshness-dot {
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background-color: var(--color-text-muted);
  transition: background-color var(--transition-normal);
}

.freshness-dot--fresh {
  background-color: var(--color-fresh);
  box-shadow: 0 0 0 3px rgb(5 150 105 / 0.2);
}

.freshness-dot--stale {
  background-color: var(--color-stale);
  box-shadow: 0 0 0 3px rgb(217 119 6 / 0.2);
}

.freshness-dot--missing {
  background-color: var(--color-missing);
}

.freshness-dot--offline {
  background-color: var(--color-danger);
  box-shadow: 0 0 0 3px rgb(200 30 30 / 0.2);
}

.freshness-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Connection indicator */
.sync-indicator,
.connection-indicator {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-1) var(--spacing-3);
  background: var(--color-warning-light);
  color: var(--color-warning);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
}

.sync-indicator {
  background: rgb(26 86 219 / 0.1);
  color: var(--color-primary);
}

.connection-icon {
  flex-shrink: 0;
}

.sync-indicator .spinner {
  border-top-color: var(--color-primary);
}

.sync-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Status dots (used in filter checkboxes and comparison grid) */
.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.status-dot--fresh {
  background-color: var(--color-fresh);
}
.status-dot--stale {
  background-color: var(--color-stale);
}
.status-dot--missing {
  background-color: var(--color-missing);
}

/* Refresh icon animation */
.map-toolbar__refresh .refresh-icon {
  transition: transform var(--transition-normal);
}

.map-toolbar__refresh:hover .refresh-icon,
.map-toolbar__refresh.is-loading .refresh-icon {
  animation: spin 1s linear infinite;
}

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

/* =============================================================================
   13. BUS DETAIL PANEL
   ============================================================================= */

.bus-detail-panel {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: var(--z-modal);
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-4);
  max-height: 60vh;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.bus-detail-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-4);
}

.bus-detail-panel__title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
}

.bus-detail-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3);
}

.bus-detail-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
}

.bus-detail-item dt {
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.bus-detail-item dd {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text);
}

.bus-licensing {
  margin-top: var(--spacing-4);
  padding-top: var(--spacing-3);
  border-top: 1px solid var(--color-border);
}

.bus-licensing__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-2);
}

.bus-licensing__title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
}

.bus-licensing__status {
  flex-shrink: 0;
  max-width: 58%;
  padding: 2px var(--spacing-2);
  border-radius: var(--radius-full);
  background: var(--color-bg-muted);
  color: var(--color-text-secondary);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  line-height: var(--leading-normal);
  overflow-wrap: anywhere;
  text-align: right;
}

.bus-licensing__status[data-state='ok'] {
  background: var(--color-success-light);
  color: var(--color-success);
}

.bus-licensing__status[data-state='warn'] {
  background: var(--color-warning-light);
  color: var(--color-warning);
}

.bus-licensing__status[data-state='error'] {
  background: var(--color-danger-light);
  color: var(--color-danger);
}

.bus-licensing__badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-1);
  margin-bottom: var(--spacing-2);
}

.bus-licensing__badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 1px var(--spacing-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-bg-subtle);
  color: var(--color-text-secondary);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  line-height: var(--leading-normal);
  white-space: nowrap;
}

.bus-licensing__badge--yes {
  border-color: var(--color-success);
  background: var(--color-success-light);
  color: var(--color-success);
}

.bus-licensing__badge--no {
  color: var(--color-text-muted);
}

.bus-licensing__list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3);
}

.bus-licensing__list .bus-detail-item:last-child {
  grid-column: 1 / -1;
}

/* =============================================================================
   14. REPORTS PAGE
   ============================================================================= */

.page-reports {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
  padding-block: var(--spacing-6);
  min-width: 0;
}

.page-reports > * {
  min-width: 0;
  max-width: 100%;
}

.reports-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-6);
  align-items: start;
}

.reports-form-section {
  /* inherits .card styles */
}

.reports-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.reports-preview-section {
  /* inherits .card styles */
}

/* Report metadata */
.report-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.report-meta__item {
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
}

/* Route breakdown table */
.route-breakdown {
  margin-top: var(--spacing-6);
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-4);
}

.route-breakdown__title {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  margin-bottom: var(--spacing-3);
}

.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.data-table {
  font-size: var(--text-sm);
  min-width: 480px;
}

.data-table thead {
  background: var(--color-bg-subtle);
}

.data-table th {
  padding: var(--spacing-2) var(--spacing-3);
  font-weight: var(--font-semibold);
  color: var(--color-text-secondary);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.data-table td {
  padding: var(--spacing-2) var(--spacing-3);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

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

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

/* Reports loading / error states */
.reports-loading,
.reports-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-4);
  padding: var(--spacing-12) var(--spacing-6);
  text-align: center;
  color: var(--color-text-secondary);
}

.reports-error__icon {
  color: var(--color-danger);
}

.reports-error__title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

.reports-error__message {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* Reports info section */
.reports-info {
  /* inherits .card */
}

.reports-info__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.info-list {
  list-style: disc;
  padding-left: var(--spacing-5);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
}

.info-list li {
  line-height: var(--leading-relaxed);
}

/* =============================================================================
   15. HISTORY PAGE
   ============================================================================= */

.page-history {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
  padding-block: var(--spacing-6);
}

/* History filters form */
.history-filters {
  padding: var(--spacing-5);
}

.history-filters__row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: var(--spacing-4);
}

.history-filters__field {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.history-filters__field--line {
  flex: 1 1 220px;
  min-width: 180px;
}

.history-filters__field--period {
  flex: 0 1 auto;
}

.history-filters__field--dates {
  flex: 0 1 auto;
  flex-direction: row;
  align-items: center;
  gap: var(--spacing-2);
}

.history-filters__field--granularity {
  flex: 0 1 auto;
}

.history-filters__field--action {
  flex: 0 0 auto;
}

.period-buttons,
.toggle-group {
  display: flex;
  gap: var(--spacing-1);
}

.period-buttons .btn,
.toggle-group .btn {
  padding: var(--spacing-1) var(--spacing-3);
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
}

/* Line search autocomplete */
.line-search-wrapper {
  position: relative;
}

.line-suggestions {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: var(--z-dropdown);
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  max-height: 240px;
  overflow-y: auto;
}

.line-suggestion-item {
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--text-sm);
  cursor: pointer;
}

.line-suggestion-item:hover {
  background: var(--color-bg-muted);
}

/* Ingest status */
.ingest-status {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--spacing-3);
}

/* History empty / loading / error states */
.history-empty,
.history-loading,
.history-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-10) var(--spacing-4);
  text-align: center;
  color: var(--color-text-secondary);
}

.history-error {
  color: var(--color-danger);
}

/* History charts */
.history-charts-header {
  margin-bottom: var(--spacing-4);
}

.chart-card {
  padding: var(--spacing-4);
  min-height: 200px;
}

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

/* History raw data table */
.history-table-wrapper {
  overflow-x: auto;
}

.history-table {
  width: 100%;
  font-size: var(--text-sm);
  border-collapse: collapse;
}

.history-table th,
.history-table td {
  padding: var(--spacing-2) var(--spacing-3);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.history-table th {
  font-weight: var(--font-medium);
  background: var(--color-bg-subtle);
}

/* Data availability */
.data-availability {
  padding: var(--spacing-4);
}

.data-availability__loading {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.data-availability__unavailable {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-4);
  padding: var(--spacing-12) var(--spacing-6);
  text-align: center;
}

.data-availability__icon {
  color: var(--color-text-muted);
}

.data-availability__title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
}

.data-availability__message {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  max-width: 40ch;
}

/* History content */
.history-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

/* Timeline section */
.timeline-section {
  /* inherits .card */
}

.timeline-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-4);
}

.timeline-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.timeline-btn {
  /* inherits .btn .btn--icon */
}

/* Timeline slider */
.timeline-slider-wrapper {
  position: relative;
  padding-bottom: var(--spacing-4);
}

.timeline-slider {
  width: 100%;
  height: var(--touch-target);
  cursor: pointer;
  accent-color: var(--color-primary);
  /* Touch action for slider */
  touch-action: pan-y;
}

.timeline-ticks {
  display: flex;
  justify-content: space-between;
  padding-inline: 2px;
  margin-top: var(--spacing-1);
}

.timeline-tick {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.timeline-timestamp {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-2);
}

.timeline-timestamp__label {
  font-weight: var(--font-medium);
}

.timeline-timestamp__value {
  color: var(--color-text);
  font-weight: var(--font-semibold);
}

/* History main layout */
.history-main-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-6);
}

/* History map section */
.history-map-section {
  position: relative;
  min-height: 300px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.history-map-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-3);
  background: rgb(255 255 255 / 0.8);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  z-index: var(--z-raised);
}

/* Comparison panel */
.comparison-panel {
  /* inherits .card */
}

.comparison-panel__subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-4);
}

/* Comparison grid (ARIA table pattern) */
.comparison-grid {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  font-size: var(--text-sm);
}

.comparison-grid__header {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  background: var(--color-bg-subtle);
  border-bottom: 1px solid var(--color-border);
}

.comparison-grid__row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  border-bottom: 1px solid var(--color-border);
}

.comparison-grid__row:last-child {
  border-bottom: none;
}

.comparison-grid__row:hover {
  background: var(--color-bg-subtle);
}

.comparison-grid__cell {
  padding: var(--spacing-2) var(--spacing-3);
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.comparison-grid__cell--label {
  font-weight: var(--font-medium);
  color: var(--color-text);
}

.comparison-grid__cell--current,
.comparison-grid__cell--historical,
.comparison-grid__cell--diff {
  justify-content: flex-end;
  font-variant-numeric: tabular-nums;
}

.comparison-grid__header .comparison-grid__cell {
  font-weight: var(--font-semibold);
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Diff values */
.diff--positive {
  color: var(--color-success);
}
.diff--negative {
  color: var(--color-danger);
}
.diff--neutral {
  color: var(--color-text-muted);
}

/* Comparison metadata */
.comparison-meta {
  margin-top: var(--spacing-4);
  padding-top: var(--spacing-4);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.comparison-meta__item {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* History error */
.history-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-4);
  padding: var(--spacing-12) var(--spacing-6);
  text-align: center;
}

.history-error__icon {
  color: var(--color-danger);
}
.history-error__title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
}
.history-error__message {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* History info */
.history-info__content {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* =============================================================================
   16. PRIVACY PAGE
   ============================================================================= */

.page-privacy {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
  padding-block: var(--spacing-6);
}

.privacy-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-6);
  align-items: start;
}

/* Table of contents */
.privacy-toc {
  /* inherits .card */
}

.toc-list {
  list-style: decimal;
  padding-left: var(--spacing-5);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.toc-link {
  font-size: var(--text-sm);
  color: var(--color-primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-target);
  padding-block: var(--spacing-1);
}

.toc-link:hover {
  text-decoration: underline;
}

/* Privacy content */
.privacy-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

/* Privacy sections */
.privacy-section {
  /* inherits .card */
  scroll-margin-top: calc(var(--header-height) + var(--spacing-4));
}

.privacy-section__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

.privacy-subsection-title {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin-top: var(--spacing-2);
}

.privacy-list {
  list-style: disc;
  padding-left: var(--spacing-5);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
}

.privacy-list--negative li::marker {
  color: var(--color-danger);
}

.privacy-link {
  color: var(--color-primary);
}

/* Privacy highlight box */
.privacy-highlight {
  display: flex;
  gap: var(--spacing-3);
  padding: var(--spacing-4);
  background: var(--color-primary-light);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: var(--text-sm);
}

.privacy-highlight--positive {
  background: var(--color-success-light);
  border-left-color: var(--color-success);
}

.privacy-highlight__icon {
  flex-shrink: 0;
  color: var(--color-primary);
  margin-top: 2px;
}

.privacy-highlight--positive .privacy-highlight__icon {
  color: var(--color-success);
}

.privacy-highlight p {
  margin-top: var(--spacing-1);
  color: var(--color-text-secondary);
}

/* LGPD principles grid */
.lgpd-principles {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-4);
}

.lgpd-principle {
  display: flex;
  gap: var(--spacing-3);
  padding: var(--spacing-3);
  background: var(--color-bg-subtle);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.lgpd-principle__icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  border-radius: var(--radius-md);
  color: var(--color-primary);
}

.lgpd-principle strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin-bottom: var(--spacing-1);
}

.lgpd-principle p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: var(--leading-normal);
}

/* =============================================================================
   17. CARDS
   ============================================================================= */

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-5);
  box-shadow: var(--shadow-sm);
}

.card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-4);
  flex-wrap: wrap;
}

.card__title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  line-height: var(--leading-tight);
}

/* Metrics grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-3);
  margin-block: var(--spacing-4);
}

.metric-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-1);
  padding: var(--spacing-4) var(--spacing-3);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-align: center;
}

.metric-card__value {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--color-text);
}

.metric-card__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: var(--font-medium);
}

/* Metric card colour variants */
.metric-card--total .metric-card__value {
  color: var(--color-text);
}
.metric-card--operating .metric-card__value {
  color: var(--color-success);
}
.metric-card--stopped .metric-card__value {
  color: var(--color-warning);
}
.metric-card--out-of-service .metric-card__value {
  color: var(--color-danger);
}

/* =============================================================================
   18. ADVERTISEMENT UNITS
   ============================================================================= */

.ad-unit {
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-bg-subtle);
  /* Prevent ads from blocking content */
  pointer-events: auto;
}

/* Header banner – 320×50 mobile */
.ad-unit--header {
  width: 100%;
  min-height: 50px;
  max-height: 90px;
  border-top: 1px solid var(--color-border);
}

/* Footer banner – 320×50 mobile */
.ad-unit--footer {
  width: 100%;
  min-height: 50px;
  max-height: 90px;
  border-bottom: 1px solid var(--color-border);
}

/* Sidebar – hidden on mobile, shown on desktop */
.ad-unit--sidebar {
  display: none;
  width: 300px;
  height: 250px;
  position: absolute;
  right: var(--spacing-4);
  bottom: var(--spacing-10);
  z-index: var(--z-raised);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

/* Graceful degradation – hide empty ad containers */
.ad-unit:empty,
.ad-unit ins:empty {
  display: none;
}

/* =============================================================================
   19. FEEDBACK STATES
   ============================================================================= */

/* Spinner */
.spinner {
  display: inline-block;
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}

.spinner--small {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

/* Error banner */
.error-banner {
  position: fixed;
  bottom: var(--spacing-4);
  left: var(--spacing-4);
  right: var(--spacing-4);
  z-index: var(--z-toast);
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-3) var(--spacing-4);
  background: var(--color-danger-light);
  border: 1px solid var(--color-danger);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  font-size: var(--text-sm);
  color: var(--color-danger);
}

.error-banner__icon {
  flex-shrink: 0;
}

.error-banner__retry {
  margin-left: auto;
  flex-shrink: 0;
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-danger);
  text-decoration: underline;
  min-height: var(--touch-target);
  display: flex;
  align-items: center;
  touch-action: manipulation;
}

.error-banner__close {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-target);
  height: var(--touch-target);
  color: var(--color-danger);
  border-radius: var(--radius-md);
  touch-action: manipulation;
}

.error-banner__close:hover {
  background: rgb(200 30 30 / 0.1);
}

/* No results */
.no-results {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-8) var(--spacing-4);
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* =============================================================================
   20. PAGE HEADERS
   ============================================================================= */

.page-header {
  padding-bottom: var(--spacing-4);
  border-bottom: 1px solid var(--color-border);
}

.page-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--color-text);
  line-height: var(--leading-tight);
  margin-bottom: var(--spacing-2);
}

.page-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 65ch;
}

/* =============================================================================
   21. RESPONSIVE OVERRIDES – 768 px (TABLET)
   ============================================================================= */

@media (min-width: 768px) {
  /* Layout */
  :root {
    --header-height: 64px;
    --container-padding: var(--spacing-6);
  }

  /* Header */
  .nav-toggle {
    display: none;
  }

  .nav-menu {
    display: flex !important;
    position: static;
    background: none;
    border: none;
    box-shadow: none;
    padding: 0;
    gap: var(--spacing-1);
  }

  .nav-menu li {
    display: inline-flex;
  }

  .nav-link {
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    min-height: 36px;
  }

  .nav-link--active::before {
    display: none;
  }

  .nav-link--active {
    background-color: var(--color-primary-light);
  }

  /* Footer */
  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer-meta {
    grid-column: 1 / -1;
  }

  /* Map page */
  .map-page {
    flex-direction: row;
  }

  .filter-panel {
    position: relative;
    transform: none;
    width: 280px;
    max-height: none;
    flex-shrink: 0;
    box-shadow: none;
    border-right: 1px solid var(--color-border);
    border-bottom: 0;
    border-radius: 0;
    padding: var(--spacing-4);
    gap: var(--spacing-4);
    transition: none;
  }

  .filter-panel__header {
    display: flex;
  }

  /* Hide close button on tablet+ (panel is always visible) */
  .filter-panel__close {
    display: none;
  }

  .filter-form {
    gap: var(--spacing-4);
  }

  .filter-panel .form-hint {
    display: inline;
  }

  .filter-panel .checkbox-group {
    flex-direction: column;
    overflow-x: visible;
    padding-bottom: 0;
  }

  .filter-panel .checkbox-label {
    align-items: flex-start;
    min-height: var(--touch-target);
    padding: var(--spacing-2) 0;
    background: transparent;
    border: 0;
    border-radius: 0;
    white-space: normal;
  }

  .filter-panel .filter-actions {
    padding-top: var(--spacing-2);
  }

  .filter-panel .filter-actions .btn {
    flex: 0 1 auto;
  }

  /* Bus detail panel becomes a side panel */
  .bus-detail-panel {
    position: absolute;
    bottom: var(--spacing-4);
    left: var(--spacing-4);
    right: auto;
    width: 280px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    max-height: 50vh;
  }

  /* Reports layout */
  .reports-layout {
    grid-template-columns: 360px 1fr;
  }

  /* History layout */
  .history-main-layout {
    grid-template-columns: 1fr 280px;
  }

  .history-map-section {
    min-height: 400px;
  }

  /* Privacy layout */
  .privacy-layout {
    grid-template-columns: 220px 1fr;
  }

  .privacy-toc {
    position: sticky;
    top: calc(var(--header-height) + var(--spacing-4));
  }

  /* Metrics grid */
  .metrics-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  /* LGPD principles */
  .lgpd-principles {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Ad units */
  .ad-unit--header,
  .ad-unit--footer {
    min-height: 90px;
  }

  .ad-unit--sidebar {
    display: flex;
  }

  /* Error banner */
  .error-banner {
    left: auto;
    right: var(--spacing-6);
    max-width: 480px;
  }
}

/* =============================================================================
   22. RESPONSIVE OVERRIDES – 1024 px (DESKTOP)
   ============================================================================= */

@media (min-width: 1024px) {
  :root {
    --container-padding: var(--spacing-8);
  }

  /* Header */
  .nav-link {
    font-size: var(--text-base);
  }

  /* Footer */
  .footer-inner {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .footer-meta {
    grid-column: auto;
  }

  /* Map page – wider filter panel */
  .filter-panel {
    width: 320px;
  }

  /* Bus detail panel */
  .bus-detail-panel {
    width: 320px;
  }

  /* Reports layout */
  .reports-layout {
    grid-template-columns: 400px 1fr;
  }

  /* History layout */
  .history-main-layout {
    grid-template-columns: 1fr 320px;
  }

  .history-map-section {
    min-height: 500px;
  }

  /* Privacy layout */
  .privacy-layout {
    grid-template-columns: 260px 1fr;
  }

  /* LGPD principles */
  .lgpd-principles {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Page title */
  .page-title {
    font-size: var(--text-3xl);
  }

  /* Card padding */
  .card {
    padding: var(--spacing-6);
  }
}

/* =============================================================================
   23. TOUCH GESTURE SUPPORT (Requirement 5.3)
   ============================================================================= */

/*
 * touch-action values control which gestures the browser handles natively
 * vs. which are passed to JavaScript (Leaflet).
 *
 * .leaflet-map uses touch-action: none so Leaflet handles all gestures.
 * Interactive controls use touch-action: manipulation to prevent 300ms delay.
 */

/* Map: pass all touch events to Leaflet */
.leaflet-map,
.leaflet-map * {
  touch-action: none;
}

/* Slider: allow vertical scroll but handle horizontal for the range input */
.timeline-slider {
  touch-action: pan-y;
}

/* Scrollable panels: allow vertical scroll */
.filter-panel,
.bus-detail-panel,
.autocomplete-list {
  touch-action: pan-y;
  -webkit-overflow-scrolling: touch;
}

/* All interactive controls: remove 300ms tap delay */
.btn,
.nav-link,
.footer-link,
.toc-link,
.checkbox-label,
.radio-label,
.filter-chip,
.autocomplete-list [role='option'] {
  touch-action: manipulation;
}

/* =============================================================================
   24. PRINT STYLES
   ============================================================================= */

@media print {
  .site-header,
  .site-nav,
  .nav-toggle,
  .ad-unit,
  .map-toolbar,
  .filter-panel,
  .bus-detail-panel,
  .error-banner,
  .skip-link {
    display: none !important;
  }

  .site-main {
    padding-top: 0;
  }

  .card {
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
  }

  a[href]::after {
    content: ' (' attr(href) ')';
    font-size: 0.8em;
    color: #666;
  }

  a[href^='#']::after,
  a[href^='javascript:']::after {
    content: '';
  }
}

/* =============================================================================
   25. WCAG 2.1 AA ACCESSIBILITY STYLES (Requirements 5.4, 5.5)
   =============================================================================

   This section ensures compliance with WCAG 2.1 Level AA:
   - 1.4.3 Contrast (Minimum): 4.5:1 for normal text, 3:1 for large text
   - 1.4.11 Non-text Contrast: 3:1 for UI components and graphical objects
   - 2.4.7 Focus Visible: visible focus indicator for all interactive elements
   - 2.5.5 Target Size: minimum 44×44 CSS pixels for touch targets
   ============================================================================= */

/* ---------------------------------------------------------------------------
   25.1 COLOR CONTRAST – Text & UI Components
   ---------------------------------------------------------------------------
   Verified contrast ratios against WCAG 2.1 AA (4.5:1 normal, 3:1 large/UI):

   --color-text           #111827 on #ffffff → ~18.1:1  ✓
   --color-text-secondary #4b5563 on #ffffff → ~7.4:1   ✓
   --color-text-muted     #6b7280 on #ffffff → ~4.6:1   ✓ (barely passes)
   --color-primary        #1a56db on #ffffff → ~4.6:1   ✓
   --color-primary-dark   #1e429f on #ffffff → ~7.2:1   ✓
   --color-success        #057a55 on #ffffff → ~5.1:1   ✓
   --color-warning        #b45309 on #ffffff → ~4.6:1   ✓
   --color-danger         #c81e1e on #ffffff → ~5.9:1   ✓

   ISSUE: --color-fresh #059669 used as text in metric cards → ~3.0:1 (fails)
   FIX:   Override metric card value colour to use --color-success (#057a55)
          which has 5.1:1 contrast ratio.

   ISSUE: --color-stale #d97706 used as text → ~2.9:1 (fails)
   FIX:   Override to use --color-warning (#b45309) which has 4.6:1.

   ISSUE: --color-missing #6b7280 used as text → ~4.6:1 (passes, no change needed)
   --------------------------------------------------------------------------- */

/* Fix: metric card "Em operação" value – use accessible green (#057a55 = 5.1:1) */
.metric-card--operating .metric-card__value {
  color: var(--color-success); /* #057a55 – 5.1:1 on white ✓ */
}

/* Fix: metric card "Parados" value – use accessible amber (#b45309 = 4.6:1) */
.metric-card--stopped .metric-card__value {
  color: var(--color-warning); /* #b45309 – 4.6:1 on white ✓ */
}

/* Fix: diff positive values – use accessible green */
.diff--positive {
  color: var(--color-success); /* #057a55 – 5.1:1 on white ✓ */
}

/* Fix: diff negative values – already uses --color-danger (#c81e1e = 5.9:1) ✓ */

/* Ensure status dot colours used as text labels meet contrast.
   Status dots are decorative (aria-hidden) so they are exempt from 1.4.11
   when paired with a visible text label. No change needed for dots themselves. */

/* Ensure muted text on coloured backgrounds meets contrast.
   --color-text-muted on --color-bg-subtle (#f9fafb) → #6b7280 on #f9fafb → ~4.4:1
   This is just below 4.5:1. Upgrade muted text on subtle backgrounds. */
.card .metric-card__label,
.comparison-grid__header .comparison-grid__cell,
.bus-detail-item dt,
.footer-data-source,
.footer-copyright,
.footer-tagline {
  color: var(--color-text-secondary); /* #4b5563 – 7.4:1 on white ✓ */
}

/* Ensure link contrast in privacy page and footer */
.privacy-link,
.footer-link,
.toc-link {
  color: var(--color-primary-dark); /* #1e429f – 7.2:1 on white ✓ */
}

.privacy-link:hover,
.footer-link:hover,
.toc-link:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* Ensure primary button text contrast: white on #1a56db → 4.6:1 ✓ */
/* Ensure success button text contrast: white on #057a55 → 5.1:1 ✓ */

/* Error banner: --color-danger (#c81e1e) on --color-danger-light (#fde8e8)
   Contrast: ~4.5:1 ✓ */

/* Connection indicator: --color-warning (#b45309) on --color-warning-light (#fef3c7)
   Contrast: ~4.6:1 ✓ */

/* ---------------------------------------------------------------------------
   25.2 FOCUS INDICATORS – Keyboard Navigation (WCAG 2.4.7, 2.4.11)
   ---------------------------------------------------------------------------
   The global :focus-visible rule in section 3 provides a 3px solid primary
   outline. However, some elements override this with outline:none.
   This section restores and enhances focus styles for those elements.
   --------------------------------------------------------------------------- */

/* Form inputs: restore visible focus ring alongside the box-shadow */
.form-input:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 0;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgb(26 86 219 / 0.25);
}

/* Override the outline:none set in the base .form-input:focus rule
   for keyboard users – keep box-shadow but also show outline */
.form-input:focus {
  outline: none; /* kept for mouse users; :focus-visible above handles keyboard */
}

/* Select elements */
.form-select:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 0;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgb(26 86 219 / 0.25);
}

/* Timeline range slider */
.timeline-slider:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 4px;
}

/* Navigation links – enhance focus ring visibility */
.nav-link:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-light);
}

/* Buttons – ensure focus ring is always visible */
.btn:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgb(26 86 219 / 0.2);
}

/* Icon-only buttons need a clearly visible focus ring */
.btn--icon:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  background-color: var(--color-primary-light);
}

/* Filter chip remove buttons */
.filter-chip button:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Autocomplete options */
.autocomplete-list [role='option']:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: -3px;
  background-color: var(--color-primary-light);
}

/* Skip link – already has explicit :focus style, ensure it's robust */
.skip-link:focus-visible {
  top: var(--spacing-2);
  outline: 3px solid var(--color-text-inverse);
  outline-offset: 2px;
}

/* Leaflet map container – keyboard focusable */
.leaflet-map:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: -3px;
}

/* Table wrapper (scrollable region) */
.table-wrapper:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Privacy TOC links */
.toc-link:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Footer links */
.footer-link:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Site logo link */
.site-logo:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: var(--radius-md);
}

/* Checkbox and radio custom indicators – focus ring on the visible element */
.checkbox-input:focus-visible + .checkbox-custom {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-color: var(--color-primary);
}

.radio-input:focus-visible + .radio-custom {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-color: var(--color-primary);
}

/* Filter panel close button */
.filter-panel__close:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  background-color: var(--color-primary-light);
}

/* Nav toggle (hamburger) */
.nav-toggle:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  background-color: var(--color-primary-light);
}

/* ---------------------------------------------------------------------------
   25.3 TOUCH TARGET SIZES – Mobile (WCAG 2.5.5)
   ---------------------------------------------------------------------------
   Minimum 44×44 CSS pixels for all interactive elements on mobile.
   Most elements already use --touch-target (44px) via min-height.
   This section handles edge cases and smaller elements on mobile.
   --------------------------------------------------------------------------- */

@media (max-width: 767px) {
  /* Filter chips: increase touch target on mobile */
  .filter-chip {
    min-height: var(--touch-target);
    padding: var(--spacing-2) var(--spacing-3);
  }

  .filter-chip button {
    width: var(--touch-target);
    height: var(--touch-target);
    /* Visually smaller but touch area is 44px */
    display: flex;
    align-items: center;
    justify-content: center;
  }

  /* Small select (form-select--small) – increase touch target on mobile */
  .form-select--small {
    min-height: var(--touch-target);
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--text-sm);
  }

  /* Timeline control buttons */
  .timeline-btn {
    min-width: var(--touch-target);
    min-height: var(--touch-target);
  }

  /* Nav links in mobile menu */
  .nav-link {
    min-height: var(--touch-target);
    padding-block: var(--spacing-3);
  }

  /* Footer links */
  .footer-link {
    min-height: var(--touch-target);
    padding-block: var(--spacing-2);
  }

  /* TOC links */
  .toc-link {
    min-height: var(--touch-target);
    padding-block: var(--spacing-2);
  }

  /* Privacy links (inline) – wrap in a block with adequate padding */
  .privacy-link {
    display: inline-block;
    padding-block: var(--spacing-1);
    /* Inline links cannot always be 44px tall without breaking layout;
       they meet WCAG 2.5.5 Exception for inline text links */
  }

  /* Autocomplete options */
  .autocomplete-list [role='option'] {
    min-height: var(--touch-target);
    padding: var(--spacing-3);
  }

  /* Error banner retry and close buttons */
  .error-banner__retry,
  .error-banner__close {
    min-height: var(--touch-target);
    min-width: var(--touch-target);
  }

  /* Bus detail close button */
  #bus-detail-close {
    min-width: var(--touch-target);
    min-height: var(--touch-target);
  }

  /* Reports/history retry buttons */
  #reports-retry-btn,
  #history-retry-btn {
    min-height: var(--touch-target);
    padding: var(--spacing-3) var(--spacing-6);
  }

  /* Checkbox and radio labels – already 44px via .checkbox-label min-height */

  /* Ensure all .btn variants meet 44px on mobile */
  .btn {
    min-height: var(--touch-target);
    min-width: var(--touch-target);
  }

  /* Large buttons */
  .btn--large {
    min-height: 48px;
    padding: var(--spacing-3) var(--spacing-6);
  }
}

/* ---------------------------------------------------------------------------
   25.4 ADDITIONAL CONTRAST FIXES – Coloured Backgrounds
   ---------------------------------------------------------------------------
   Some UI elements use coloured backgrounds where text contrast must be
   verified separately from the white-background cases above.
   --------------------------------------------------------------------------- */

/* Primary button: white (#fff) on #1a56db → 4.6:1 ✓ */
/* Success button: white (#fff) on #057a55 → 5.1:1 ✓ */
/* Ghost button: #111827 on transparent/white → 18.1:1 ✓ */

/* Filter chip: --color-primary-dark (#1e429f) on --color-primary-light (#e8f0fe)
   Contrast: ~5.9:1 ✓ */

/* Autocomplete selected: --color-primary-dark on --color-primary-light → ~5.9:1 ✓ */

/* Privacy highlight (blue): text on --color-primary-light (#e8f0fe)
   --color-text-secondary (#4b5563) on #e8f0fe → ~5.2:1 ✓ */
.privacy-highlight p {
  color: var(--color-text-secondary); /* #4b5563 – 5.2:1 on #e8f0fe ✓ */
}

/* Privacy highlight (green): text on --color-success-light (#def7ec)
   --color-text-secondary (#4b5563) on #def7ec → ~5.0:1 ✓ */
.privacy-highlight--positive p {
  color: var(--color-text-secondary);
}

/* Bus count badge: white on rgba(0,0,0,0.65) → effectively ~8:1 ✓ */

/* Skip link: white on --color-primary (#1a56db) → 4.6:1 ✓ */

/* Error banner: --color-danger (#c81e1e) on --color-danger-light (#fde8e8)
   Contrast: ~4.5:1 ✓ */

/* Connection indicator: --color-warning (#b45309) on --color-warning-light (#fef3c7)
   Contrast: ~4.6:1 ✓ */

/* LGPD principle icon: --color-primary (#1a56db) on --color-primary-light (#e8f0fe)
   This is a decorative icon (aria-hidden), exempt from contrast requirements. */

/* Data table header: --color-text-secondary on --color-bg-subtle (#f9fafb)
   #4b5563 on #f9fafb → ~7.1:1 ✓ */

/* Comparison grid header: same as data table ✓ */

/* Metric card background: --color-bg-subtle (#f9fafb)
   --color-text (#111827) on #f9fafb → ~17.5:1 ✓
   --color-success (#057a55) on #f9fafb → ~4.9:1 ✓
   --color-warning (#b45309) on #f9fafb → ~4.4:1 — borderline for normal text.
   Upgrade stopped metric value to use a slightly darker amber. */
.metric-card--stopped .metric-card__value {
  color: #92400e; /* Amber 800 – 5.9:1 on #f9fafb ✓ */
}

/* Diff positive on white: --color-success (#057a55) → 5.1:1 ✓ (already set above) */

/* =============================================================================
   26. SWIPE HANDLE – Bus Detail Panel (Requirement 5.3)
   =============================================================================
   A visual drag handle at the top of the bus detail panel on mobile gives
   users a clear affordance that the panel can be swiped down to close.
   Hidden on tablet+ where the panel is a side card, not a bottom sheet.
   ============================================================================= */

.bus-detail-panel__swipe-handle {
  display: none; /* hidden by default; shown on mobile only */
}

@media (max-width: 767px) {
  /* Show the swipe handle only on mobile (bottom-sheet layout) */
  .bus-detail-panel__swipe-handle {
    display: flex;
    justify-content: center;
    align-items: center;
    /* Extend the touch target above the visible pill */
    padding-top: var(--spacing-2);
    padding-bottom: var(--spacing-3);
    margin-top: calc(-1 * var(--spacing-4)); /* pull up into panel padding */
    margin-bottom: var(--spacing-2);
    cursor: grab;
    touch-action: none; /* let our JS handle the swipe */
  }

  .bus-detail-panel__swipe-handle::before {
    content: '';
    display: block;
    width: 36px;
    height: 4px;
    background: var(--color-border-strong);
    border-radius: var(--radius-full);
  }
}

/* =============================================================================
   27. AUDIT DASHBOARD
   ============================================================================= */

.dash-kpi-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-6);
}

.dash-kpi {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-5);
  background: var(--color-bg);
  transition:
    box-shadow 0.15s ease,
    border-color 0.15s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.dash-kpi:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.dash-kpi__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: var(--spacing-3);
}

.dash-kpi__icon--blue {
  background: var(--color-kpi-blue-light);
  color: var(--color-primary);
}

.dash-kpi__icon--amber {
  background: var(--color-warning-light);
  color: var(--color-warning);
}

.dash-kpi__icon--red {
  background: var(--color-kpi-red-light);
  color: var(--color-consortium-santa-cruz);
}

.dash-kpi__icon--purple {
  background: var(--color-accent-purple-light);
  color: var(--color-accent-purple);
}

.dash-kpi__value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.1;
  margin-bottom: var(--spacing-1);
}

.dash-kpi__label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Skeleton shimmer */
.skeleton-shimmer {
  background: linear-gradient(
    90deg,
    var(--color-bg-secondary) 25%,
    #e5e7eb 50%,
    var(--color-bg-secondary) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

.skeleton-value {
  height: 2rem;
  width: 60%;
  margin-bottom: var(--spacing-2);
}

.skeleton-label {
  height: 0.75rem;
  width: 80%;
}

.skeleton-chart {
  position: absolute;
  inset: 0;
  height: 100%;
  width: 100%;
}

/* Panorama Histórico — timeseries section */
.dash-timeseries-section {
  margin-bottom: var(--spacing-6);
}

.dash-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-4);
  gap: var(--spacing-3);
  flex-wrap: wrap;
}

.dash-section-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  flex-wrap: wrap;
}

.form-input--sm {
  min-height: unset;
  height: 2rem;
  padding: 0.25rem 0.625rem;
  font-size: var(--text-sm) !important;
  width: 140px;
  border-radius: var(--radius-md);
}

.dash-section-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
}

.dash-period-toggle {
  display: flex;
  gap: 2px;
  background: var(--color-bg-muted);
  border-radius: var(--radius-md);
  padding: 3px;
}

.period-btn {
  padding: 0.25rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition:
    background 0.15s ease,
    color 0.15s ease;
  line-height: 1.5;
}

.period-btn.is-active {
  background: var(--color-bg);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

.dash-chart-card--wide {
  margin-bottom: var(--spacing-4);
}

.dash-chart-card__wrapper--tall {
  aspect-ratio: 16 / 6;
}

.dash-charts--timeseries-row {
  grid-template-columns: 1fr;
  margin-bottom: var(--spacing-4);
}

/* Chart grid */
.dash-charts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-6);
}

.dash-charts > .dash-note {
  grid-column: 1 / -1;
  margin-bottom: 0;
}

.dash-chart-card {
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-4);
  background: var(--color-bg);
}

.dash-chart-card .result-table-wrapper {
  max-width: 100%;
  width: 100%;
}

.dash-chart-card__title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-3);
}

.dash-chart-card__wrapper {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.dash-chart-card__wrapper canvas {
  width: 100% !important;
  height: 100% !important;
}

.dash-chart-summary {
  margin-top: var(--spacing-3);
  padding-top: var(--spacing-3);
  border-top: 1px solid var(--color-border);
}

.audit-intent-band {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-3);
}

.audit-intent-band .btn {
  min-height: 38px;
}

.audit-intent-band__note {
  margin-bottom: var(--spacing-6);
}

#line-trip-table {
  width: 100%;
  min-width: 820px;
  table-layout: fixed;
}

#line-trip-table th,
#line-trip-table td,
#fleet-licensing-table th,
#fleet-licensing-table td {
  vertical-align: middle;
}

#line-trip-table th:nth-child(1),
#line-trip-table td:nth-child(1) {
  width: 12%;
}

#line-trip-table th:nth-child(2),
#line-trip-table td:nth-child(2) {
  width: 16%;
}

#line-trip-table th:nth-child(n + 3),
#line-trip-table td:nth-child(n + 3) {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

#line-trip-table th:nth-child(4),
#line-trip-table td:nth-child(4) {
  width: 14%;
}

#line-trip-table th:nth-child(7),
#line-trip-table td:nth-child(7) {
  width: 15%;
}

/* Alert cards */
.dash-alerts {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-6);
}

.dash-alert {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  overflow: hidden;
}

.dash-alert summary {
  padding: var(--spacing-3) var(--spacing-4);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  list-style: none;
}

.dash-alert summary::-webkit-details-marker {
  display: none;
}

.dash-alert summary::before {
  content: '\25B8';
  font-size: 0.75rem;
  transition: transform 0.15s ease;
}

.dash-alert[open] summary::before {
  transform: rotate(90deg);
}

.dash-alert__count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.5rem;
  height: 1.5rem;
  padding: 0 var(--spacing-2);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  margin-left: auto;
}

.dash-alert__count--warn {
  background: var(--color-warning-light);
  color: var(--color-warning);
}
.dash-alert__count--danger {
  background: var(--color-danger-light);
  color: var(--color-danger);
}

.dash-alert .data-table {
  margin: 0;
  border-top: 1px solid var(--color-border);
  font-size: 0.8125rem;
}

/* Section error state */
.dash-error {
  padding: var(--spacing-4);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.dash-error[hidden] {
  display: none;
}

/* Data quality alert banner */
.dash-alert-banner {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
  padding: var(--spacing-3) var(--spacing-4);
  margin-bottom: var(--spacing-4);
  background: var(--color-warning-light);
  border: 1px solid var(--color-warning);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  color: var(--color-warning);
}

.dash-alert-banner[hidden] {
  display: none;
}

.dash-alert-banner__icon {
  flex-shrink: 0;
  font-size: var(--text-lg);
  line-height: 1;
}

.dash-alert-banner__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
}

.dash-alert-banner__content strong {
  font-weight: var(--font-semibold);
}

/* Divider */
.dash-divider {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  margin: var(--spacing-6) 0 var(--spacing-4);
  color: var(--color-text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.dash-divider::before,
.dash-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

/* Responsive */
@media (max-width: 768px) {
  .dash-kpi-bar {
    grid-template-columns: repeat(2, 1fr);
  }
  .dash-charts {
    grid-template-columns: minmax(0, 1fr);
  }
  .dash-chart-card__wrapper {
    aspect-ratio: 4 / 3;
  }
  .dash-chart-card {
    padding: var(--spacing-3);
  }
  /* Tables already get their own horizontal scroll via .result-table-wrapper */
  .data-table {
    min-width: 0;
  }
  #line-trip-table {
    min-width: 720px;
  }
}

@media (max-width: 480px) {
  .dash-kpi-bar {
    grid-template-columns: 1fr;
  }
  .dash-kpi__value {
    font-size: 1.5rem;
  }
  .dash-chart-card__wrapper {
    aspect-ratio: 4 / 3;
  }
}

@media (max-width: 375px) {
  .data-table {
    font-size: 0.7rem;
  }
  .data-table th,
  .data-table td {
    padding: 0.25rem 0.5rem;
  }
  .dash-kpi__value {
    font-size: 1.2rem;
  }
  .dash-kpi-bar {
    gap: 0.375rem;
  }
}

/* =============================================================================
   28. EXTRACTED AUDIT INLINE STYLES
   ============================================================================= */

.audit-tabs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  border-bottom: 2px solid var(--color-border);
  margin-bottom: 1.5rem;
}

.audit-tab {
  padding: 0.6rem 1.1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  white-space: nowrap;
}

.audit-tab.is-active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.tab-group-label {
  display: block;
  width: 100%;
  padding: 0.75rem 0 0.25rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  pointer-events: none;
  user-select: none;
  grid-column: 1 / -1;
}

.audit-panel {
  display: none;
}

.audit-panel.is-active {
  display: block;
}

.audit-form-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: flex-end;
}

.audit-form-row .form-group {
  flex: 1;
  min-width: 140px;
  margin-bottom: 0;
}

.audit-results {
  margin-top: 1.5rem;
}

.audit-results[hidden] {
  display: none;
}

.result-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}

.comparison-controls {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: flex-end;
  margin: 0 0 1rem;
}

.comparison-controls .form-group {
  flex: 1;
  min-width: 180px;
  margin-bottom: 0;
}

.comparison-controls .form-group--sort {
  min-width: 160px;
  flex: 0.7;
}

.comparison-hint {
  margin: 0 0 1rem;
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge--ok {
  background: var(--color-success-light);
  color: var(--color-success);
}

.badge--warn {
  background: var(--color-warning-light);
  color: var(--color-warning);
}

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

.badge--neutral {
  background: var(--color-bg-secondary, #f3f4f6);
  color: var(--color-text-muted);
}

.dash-alert__count--ok {
  background: var(--color-success-bg, #dcfce7);
  color: var(--color-success, #166534);
}

.trend-up {
  color: var(--color-success);
  font-weight: 600;
}

.trend-down {
  color: var(--color-danger);
  font-weight: 600;
}

.audit-empty {
  padding: 2rem;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.audit-score-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.score-track {
  flex: 1;
  height: 8px;
  background: var(--color-border);
  border-radius: 4px;
  overflow: hidden;
}

.score-fill {
  height: 100%;
  border-radius: 4px;
}

.score-fill--good {
  background: var(--color-success);
}

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

.score-fill--bad {
  background: var(--color-danger);
}

.dash-note {
  margin-top: 0.5rem;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.dash-note[hidden] {
  display: none;
}

.dash-methodology {
  margin: 1rem 0 1.25rem;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md, 8px);
  background: var(--color-bg-secondary, #f9fafb);
  color: var(--color-text-muted);
  font-size: 0.84rem;
  line-height: 1.5;
}

.dash-methodology strong {
  display: block;
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.dash-methodology__list {
  display: grid;
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.dash-methodology__list li {
  display: grid;
  gap: 0.15rem;
}

.dash-methodology__list span {
  color: var(--color-text);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

/* =============================================================================
   29. HEALTH STATUS PAGE
   ============================================================================= */

.health-page {
  --health-ok: var(--color-health-ok);
  --health-warn: var(--color-health-warn);
  --health-bad: var(--color-health-bad);
  --health-unknown: var(--color-health-unknown);
  --health-ink: var(--color-health-ink);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
  padding-block: var(--spacing-8);
}

.health-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
  gap: var(--spacing-6);
  align-items: end;
  padding: clamp(1.25rem, 3vw, 2.25rem);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgb(255 255 255 / 0.94), rgb(255 255 255 / 0.78)),
    repeating-linear-gradient(
      135deg,
      rgb(37 99 235 / 0.08) 0,
      rgb(37 99 235 / 0.08) 1px,
      transparent 1px,
      transparent 18px
    );
}

.health-eyebrow {
  margin-bottom: var(--spacing-2);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.health-title {
  max-width: 840px;
  color: var(--health-ink);
  font-family: 'Avenir Next', 'Trebuchet MS', var(--font-sans);
  font-size: clamp(2rem, 5vw, 4.5rem);
  font-weight: 800;
  letter-spacing: 0;
  line-height: 0.96;
}

.health-subtitle {
  max-width: 760px;
  margin-top: var(--spacing-4);
  color: var(--color-text-secondary);
  font-size: clamp(1rem, 1.4vw, 1.15rem);
}

.health-summary-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  min-height: 104px;
  padding: var(--spacing-4);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: rgb(255 255 255 / 0.86);
  box-shadow: var(--shadow-sm);
}

.health-summary-card strong,
.health-summary-card span:not(.health-status-dot) {
  display: block;
}

.health-summary-card strong {
  color: var(--color-text);
  font-size: 1rem;
}

.health-summary-card span:not(.health-status-dot) {
  margin-top: 0.15rem;
  color: var(--color-text-muted);
  font-size: 0.82rem;
}

.health-trust {
  padding: var(--spacing-5);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg);
  box-shadow: 0 1px 0 rgb(17 24 39 / 0.03);
}

.health-trust__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-4);
}

.health-trust__header .health-eyebrow {
  margin-bottom: var(--spacing-1);
}

.health-trust h2 {
  color: var(--health-ink);
  font-family: 'Avenir Next', 'Trebuchet MS', var(--font-sans);
  font-size: clamp(1.35rem, 2vw, 2rem);
  line-height: var(--leading-tight);
}

.health-trust__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-3);
}

.health-trust__item {
  min-width: 0;
  padding: var(--spacing-4);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg-subtle);
}

.health-trust__item dt {
  margin-bottom: var(--spacing-2);
  color: var(--color-text-muted);
  font-size: 0.72rem;
  font-weight: var(--font-bold);
  letter-spacing: 0;
  line-height: var(--leading-tight);
  text-transform: uppercase;
}

.health-trust__item dd {
  margin: 0;
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: var(--font-semibold);
  line-height: var(--leading-normal);
}

.health-status-dot {
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: var(--health-unknown);
  box-shadow: 0 0 0 6px rgb(203 213 225 / 0.35);
}

.health-status-dot[data-state='ok'] {
  background: var(--health-ok);
  box-shadow: 0 0 0 6px rgb(22 155 98 / 0.15);
}

.health-status-dot[data-state='warn'] {
  background: var(--health-warn);
  box-shadow: 0 0 0 6px rgb(217 144 0 / 0.16);
}

.health-status-dot[data-state='bad'] {
  background: var(--health-bad);
  box-shadow: 0 0 0 6px rgb(214 69 69 / 0.15);
}

.health-components {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-4);
}

.health-component {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  min-height: 210px;
  padding: var(--spacing-5);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg);
  box-shadow: 0 1px 0 rgb(17 24 39 / 0.03);
}

.health-component__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-4);
}

.health-component__actions {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--spacing-2);
}

.health-link {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-bg);
  color: var(--color-primary-dark);
  font-size: 0.72rem;
  font-weight: var(--font-bold);
  line-height: 1;
  text-decoration: none;
}

.health-link:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.health-component h2 {
  color: var(--color-text);
  font-family: 'Avenir Next', var(--font-sans);
  font-size: 1.1rem;
  letter-spacing: 0;
}

.health-component p {
  margin-top: 0.35rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.health-pill {
  flex: 0 0 auto;
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  background: var(--color-bg-muted);
  color: var(--color-text-secondary);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0;
}

.health-component[data-state='ok'] .health-pill {
  background: rgb(22 155 98 / 0.12);
  color: #04784b;
}

.health-component[data-state='warn'] .health-pill {
  background: rgb(217 144 0 / 0.16);
  color: #9a6500;
}

.health-component[data-state='bad'] .health-pill {
  background: rgb(214 69 69 / 0.13);
  color: #ad3030;
}

.health-uptime {
  display: grid;
  grid-template-columns: repeat(30, 1fr);
  gap: 3px;
  margin-top: auto;
  padding-block: 0.25rem;
}

.health-uptime__day {
  position: relative;
  display: block;
  height: 1.15rem;
  padding: 0;
  border: 0;
  border-radius: 3px;
  background: var(--health-unknown);
  cursor: help;
  outline: none;
  transition:
    transform 0.14s ease,
    box-shadow 0.14s ease;
}

.health-uptime__day[data-state='ok'] {
  background: var(--health-ok);
}
.health-uptime__day[data-state='warn'] {
  background: var(--health-warn);
}
.health-uptime__day[data-state='bad'] {
  background: var(--health-bad);
}
.health-uptime__day[data-state='unknown'] {
  background: var(--health-unknown);
}

.health-uptime__day:hover,
.health-uptime__day:focus-visible {
  z-index: 5;
  transform: translateY(-2px) scale(1.08);
  box-shadow: 0 8px 18px rgb(17 24 39 / 0.22);
}

.health-uptime__day::after {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 0.55rem);
  z-index: 10;
  width: max-content;
  max-width: 13rem;
  padding: 0.42rem 0.55rem;
  border: 1px solid rgb(17 24 39 / 0.12);
  border-radius: 6px;
  background: #111827;
  box-shadow: 0 12px 28px rgb(17 24 39 / 0.22);
  color: #fff;
  content: attr(data-label);
  font-size: 0.74rem;
  font-weight: 700;
  line-height: 1.25;
  opacity: 0;
  pointer-events: none;
  text-align: center;
  transform: translate(-50%, 4px);
  transition:
    opacity 0.14s ease,
    transform 0.14s ease;
  white-space: nowrap;
}

.health-uptime__day::before {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 0.2rem);
  z-index: 11;
  width: 0.5rem;
  height: 0.5rem;
  background: #111827;
  content: '';
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 4px) rotate(45deg);
  transition:
    opacity 0.14s ease,
    transform 0.14s ease;
}

.health-uptime__day:hover::after,
.health-uptime__day:hover::before,
.health-uptime__day:focus-visible::after,
.health-uptime__day:focus-visible::before {
  opacity: 1;
  transform: translate(-50%, 0);
}

.health-uptime__day:hover::before,
.health-uptime__day:focus-visible::before {
  transform: translate(-50%, 0) rotate(45deg);
}

.health-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-3);
  padding-top: var(--spacing-2);
  border-top: 1px solid var(--color-border);
}

.health-metrics div {
  min-width: 0;
}

.health-metrics dt {
  color: var(--color-text-muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.health-metrics dd {
  margin-top: 0.15rem;
  overflow: hidden;
  color: var(--color-text);
  font-size: 0.92rem;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.health-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.health-legend span {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.health-swatch {
  display: inline-block;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 3px;
  background: var(--health-unknown);
}

.health-swatch--ok {
  background: var(--health-ok);
}
.health-swatch--warn {
  background: var(--health-warn);
}
.health-swatch--bad {
  background: var(--health-bad);
}
.health-swatch--unknown {
  background: var(--health-unknown);
}

@media (max-width: 860px) {
  .health-hero,
  .health-components,
  .health-trust__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .health-page {
    padding-block: var(--spacing-5);
  }

  .health-component__header,
  .health-component__actions,
  .health-summary-card {
    align-items: flex-start;
  }

  .health-component__header {
    flex-direction: column;
  }

  .health-component__actions {
    justify-content: flex-start;
  }

  .health-uptime {
    grid-template-columns: repeat(18, 1fr);
  }

  .health-metrics {
    grid-template-columns: 1fr;
  }
}

/* =============================================================================
   30. DARK MODE
   ============================================================================= */

[data-theme='dark'] {
  --color-bg: #0f172a;
  --color-bg-subtle: #1e293b;
  --color-bg-muted: #334155;
  --color-text: #f1f5f9;
  --color-text-secondary: #cbd5e1;
  --color-text-muted: #94a3b8;
  --color-border: #334155;
  --color-border-strong: #475569;
}

[data-theme='dark'] .card {
  background: var(--color-bg);
  border-color: var(--color-border);
}

[data-theme='dark'] .site-header {
  background: var(--color-bg);
  border-color: var(--color-border);
}

[data-theme='dark'] .site-footer {
  background: var(--color-bg-subtle);
  border-color: var(--color-border);
}

[data-theme='dark'] .filter-panel {
  background: var(--color-bg);
  border-color: var(--color-border);
}

[data-theme='dark'] .bus-detail-panel {
  background: var(--color-bg);
  border-color: var(--color-border);
}

[data-theme='dark'] .map-legend {
  background: var(--color-bg);
  border-color: var(--color-border);
  color: var(--color-text-secondary);
}

[data-theme='dark'] .bus-count-badge {
  background: rgb(255 255 255 / 0.75);
  color: #000;
}

[data-theme='dark'] .map-toolbar {
  background: var(--color-bg);
  border-color: var(--color-border);
}

[data-theme='dark'] .dash-chart-card {
  background: var(--color-bg);
  border-color: var(--color-border);
}

[data-theme='dark'] .dash-kpi {
  background: var(--color-bg);
  border-color: var(--color-border);
}

[data-theme='dark'] .dash-alert {
  background: var(--color-bg);
  border-color: var(--color-border);
}

[data-theme='dark'] .health-hero {
  background:
    linear-gradient(90deg, rgb(15 23 42 / 0.96), rgb(15 23 42 / 0.84)),
    repeating-linear-gradient(
      135deg,
      rgb(96 165 250 / 0.14) 0,
      rgb(96 165 250 / 0.14) 1px,
      transparent 1px,
      transparent 18px
    );
}

[data-theme='dark'] .health-title {
  color: var(--color-text);
}

[data-theme='dark'] .health-trust h2 {
  color: var(--color-text);
}

[data-theme='dark'] .health-summary-card,
[data-theme='dark'] .health-trust,
[data-theme='dark'] .health-trust__item,
[data-theme='dark'] .health-component {
  background: var(--color-bg);
  border-color: var(--color-border);
}

[data-theme='dark'] .health-link {
  background: var(--color-bg-subtle);
  border-color: var(--color-border);
}

[data-theme='dark'] .autocomplete-list {
  background: var(--color-bg);
  border-color: var(--color-border-strong);
}

[data-theme='dark'] .privacy-highlight {
  background: #1e293b;
  border-left-color: var(--color-primary);
}

[data-theme='dark'] .lgpd-principle {
  background: var(--color-bg-subtle);
  border-color: var(--color-border);
}

[data-theme='dark'] .metric-card {
  background: var(--color-bg-subtle);
  border-color: var(--color-border);
}

[data-theme='dark'] .data-table tbody tr:hover {
  background: var(--color-bg-muted);
}

[data-theme='dark'] .privacy-section__content {
  color: var(--color-text-secondary);
}

/* =============================================================================
   30. MOBILE AUDIT TABS
   ============================================================================= */

.audit-tabs-mobile-select {
  display: none;
}

@media (max-width: 767px) {
  .audit-tabs {
    display: none !important;
  }

  .audit-tabs-mobile-select {
    display: block;
    margin-bottom: 1.5rem;
  }
}

/* =============================================================================
   31. ANIMATED MARKER
   ============================================================================= */

.bus-marker-icon {
  transition: transform 0.8s linear;
}