:root {
  --bg: #f6f8fb;
  --panel: #ffffff;
  --text: #16202a;
  --muted: #647083;
  --border: #d9e0ea;
  --surface: #fbfcfe;
  --control: #eef2f7;
  --control-border-hover: #c7d1df;
  --status-bg: #eef2f7;
  --status-ready-bg: #e3f0ff;
  --status-ready-text: #1769aa;
  --status-ok-bg: #dff3ea;
  --status-ok-text: #13764f;
  --status-danger-bg: #ffe6e0;
  --status-danger-text: #a93625;
  --status-warning-bg: #fff3df;
  --status-warning-text: #8a4f0f;
  --status-warning-border: #f0c995;
  --filter-line-pill-text: #ffffff;
  --refresh-bg: #e3f0ff;
  --refresh-text: #1769aa;
  --toggle-bg: #dfe5ee;
  --toggle-border: #b8c3d1;
  --line: #f6c915;
  --line-soft: #f6c9151f;
  --line-text: #16202a;
  --axis: #b8c2d0;
  --focus: #1769aa;
  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #101418;
  --panel: #171d23;
  --text: #eef3f8;
  --muted: #a8b4c0;
  --border: #303a46;
  --surface: #131920;
  --control: #222b35;
  --control-border-hover: #445364;
  --status-bg: #222b35;
  --status-ready-bg: #17324f;
  --status-ready-text: #c7e3ff;
  --status-ok-bg: #123329;
  --status-ok-text: #9ee6c5;
  --status-danger-bg: #3a1f1b;
  --status-danger-text: #ffb2a6;
  --status-warning-bg: #352814;
  --status-warning-text: #ffd58c;
  --status-warning-border: #6f562b;
  --filter-line-pill-text: #101418;
  --refresh-bg: #17324f;
  --refresh-text: #c7e3ff;
  --toggle-bg: #303a46;
  --toggle-border: #566575;
  --line-text: #101418;
  --axis: #4c5968;
  --focus: #74b9ff;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", Arial, sans-serif;
}

select {
  border-color: var(--border);
  background: var(--panel);
  color: var(--text);
  font: inherit;
}

.shell {
  width: min(1080px, calc(100vw - 24px));
  margin: 12px auto;
}

.app-nav,
.topbar,
.controls,
.summary,
.graph-stage {
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: 8px;
}

.app-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr)) minmax(16px, 1fr) auto auto auto;
  gap: 8px;
  padding: 8px;
}

.nav-spacer {
  min-width: 16px;
}

.nav-button,
.refresh-button {
  min-height: 38px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: var(--control);
  color: var(--muted);
  font: inherit;
  font-size: 0.86rem;
  font-weight: 850;
  cursor: pointer;
}

.nav-button:hover,
.refresh-button:hover {
  border-color: var(--control-border-hover);
  color: var(--text);
}

.nav-button:focus,
.refresh-button:focus {
  outline: 3px solid rgba(23, 105, 170, 0.16);
  border-color: var(--focus);
}

.refresh-button {
  min-width: 92px;
  background: var(--refresh-bg);
  color: var(--refresh-text);
}

.refresh-button:disabled {
  cursor: wait;
  opacity: 0.72;
}

.utility-button {
  width: 42px;
  min-width: 42px;
  aspect-ratio: 1;
  padding: 0;
  font-size: 20px;
  line-height: 1;
}

.nav-button.active {
  background: var(--line);
  color: var(--line-text);
}

.panel-view[hidden] {
  display: none;
}

.panel-view:not([hidden]) {
  display: block;
}

.blank-view {
  min-height: 320px;
}

.info-view,
.settings-view {
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: 8px;
  padding: 18px;
}

.info-section + .info-section {
  margin-top: 28px;
}

.info-section h1 {
  margin: 0 0 12px;
  font-size: 24px;
}

.settings-section h1 {
  margin: 0 0 12px;
  font-size: 24px;
}

.settings-list {
  display: grid;
  gap: 12px;
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 52px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  cursor: pointer;
}

.setting-title {
  font-size: 1rem;
  font-weight: 800;
}

.toggle-control {
  position: relative;
  display: inline-grid;
  flex: 0 0 auto;
  width: 48px;
  height: 28px;
}

.toggle-control input {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}

.toggle-track {
  border: 1px solid var(--toggle-border);
  border-radius: 999px;
  background: var(--toggle-bg);
  transition: background 0.16s ease, border-color 0.16s ease;
}

.toggle-track::after {
  content: "";
  position: absolute;
  top: 4px;
  left: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(22, 32, 42, 0.24);
  transition: transform 0.16s ease;
}

.toggle-control input:checked + .toggle-track {
  border-color: var(--line);
  background: var(--line);
}

.toggle-control input:checked + .toggle-track::after {
  transform: translateX(20px);
}

.toggle-control input:focus + .toggle-track {
  outline: 3px solid rgba(23, 105, 170, 0.16);
  outline-offset: 2px;
}

.markdown-content {
  color: var(--muted);
  line-height: 1.6;
}

.markdown-content:empty {
  min-height: 24px;
}

.markdown-content p,
.markdown-content ul {
  margin: 0 0 12px;
}

.markdown-content h2,
.markdown-content h3,
.markdown-content h4 {
  margin: 18px 0 10px;
  color: var(--text);
}

.markdown-content a {
  color: #1769aa;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 10px;
  padding: 14px 16px;
}

.eyebrow {
  margin: 0 0 3px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  line-height: 1.15;
}

h1 {
  font-size: 1.25rem;
}

.updated-meta {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 650;
}

h2 {
  font-size: 0.95rem;
}

.status {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 999px;
  padding: 3px 9px;
  background: var(--status-bg);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  white-space: nowrap;
}

.all-disruptions-summary {
  display: grid;
  gap: 8px;
  flex: 1 1 auto;
  justify-items: end;
  min-width: min(520px, 100%);
}

.status-row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.status.ready {
  background: var(--status-ok-bg);
  color: var(--status-ok-text);
}

#status.ready {
  background: var(--status-ready-bg);
  color: var(--status-ready-text);
}

#active-disruptions-status.ready {
  background: var(--status-danger-bg);
  color: var(--status-danger-text);
}

#inactive-disruptions-status.ready {
  background: var(--status-warning-bg);
  color: var(--status-warning-text);
}

#all-disruptions-facilities-status.ready {
  background: var(--status-ready-bg);
  color: var(--status-ready-text);
}

#all-disruptions-announcements-status.ready {
  background: var(--control);
  color: var(--muted);
}

.status.error {
  background: var(--status-danger-bg);
  color: var(--status-danger-text);
}

.line-filter-panel {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.line-filter-option {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 28px;
  padding: 2px 4px;
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 800;
  cursor: pointer;
}

.line-filter-option input {
  width: 15px;
  height: 15px;
  margin: 0;
  accent-color: var(--focus);
}

.line-filter-pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 999px;
  padding: 3px 9px;
  color: var(--filter-line-pill-text);
  font-size: 0.78rem;
  font-weight: 850;
}

.line-filter-reset {
  min-height: 28px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px 8px;
  background: var(--surface);
  color: var(--muted);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 800;
  cursor: pointer;
}

.line-filter-reset:hover {
  border-color: var(--control-border-hover);
  color: var(--text);
}

.line-filter-reset:focus-visible {
  outline: 3px solid rgba(23, 105, 170, 0.16);
  border-color: var(--focus);
}

.controls {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  margin-top: 10px;
  padding: 12px;
}

label {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
}

select {
  width: 100%;
  min-height: 34px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0 30px 0 9px;
  background: var(--panel);
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 650;
}

select:focus {
  outline: 3px solid rgba(23, 105, 170, 0.16);
  border-color: var(--focus);
}

.summary {
  margin-top: 10px;
  padding: 12px;
}

.context {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 30px;
  flex-wrap: wrap;
}

.line-pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 999px;
  padding: 3px 9px;
  background: var(--line);
  color: var(--line-text);
  font-size: 0.78rem;
  font-weight: 850;
}

.announcement-line-pill {
  color: var(--filter-line-pill-text);
}

#station-label {
  font-size: 1rem;
}

#category-label {
  color: var(--muted);
  font-size: 0.88rem;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(100px, 1fr));
  gap: 10px;
  margin-top: 10px;
}

.metric {
  min-height: 70px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  background: var(--surface);
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 850;
  text-transform: uppercase;
}

.metric strong {
  display: block;
  margin-top: 6px;
  font-size: 1.35rem;
}

.graph-stage {
  margin-top: 10px;
  min-height: 260px;
  padding: 12px;
}

.graph-toolbar {
  display: flex;
  align-items: end;
  justify-content: flex-end;
  gap: 12px;
  margin-bottom: 10px;
}

.graph-toolbar h2 {
  flex: 1;
  font-size: 1rem;
}

.graph-toolbar label {
  width: min(220px, 100%);
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
}

.chart-area {
  min-height: 260px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}

.disruption-list {
  display: grid;
  gap: 14px;
  margin-top: 10px;
}

.disruption-group {
  display: grid;
  gap: 10px;
}

.section-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 1rem;
  font-weight: 850;
  cursor: pointer;
  text-align: left;
}

.section-toggle:focus {
  outline: none;
}

.section-toggle:focus-visible {
  outline: 2px solid rgba(23, 105, 170, 0.28);
  outline-offset: 3px;
  border-radius: 6px;
}

[data-section="active-disruptions"] .section-toggle {
  color: var(--status-danger-text);
}

.section-toggle-icon {
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 5px 0 5px 7px;
  border-color: transparent transparent transparent currentColor;
  font-size: 0;
  overflow: hidden;
}

.section-toggle[aria-expanded="true"] .section-toggle-icon {
  border-width: 7px 5px 0;
  border-color: currentColor transparent transparent;
}

.disruption-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  padding: 12px;
}

.disruption-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.timeline-label {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 750;
  line-height: 1.25;
}

.delay-start-label {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 9px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 850;
  line-height: 1.2;
  white-space: nowrap;
}

.delay-estimate-label {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border: 1px solid var(--status-warning-border);
  border-radius: 999px;
  padding: 3px 9px;
  background: var(--status-warning-bg);
  color: var(--status-warning-text);
  font-size: 0.78rem;
  font-weight: 850;
  line-height: 1.2;
  white-space: nowrap;
}

.disruption-card h2 {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.3;
}

.disruption-description {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 550;
  line-height: 1.4;
}

.station-list {
  display: flex;
  gap: 6px;
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
  flex-wrap: wrap;
}

.station-list li {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 8px;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
}

.facility-stations {
  margin-top: 8px;
}

.facility-station-pill {
  position: relative;
  cursor: help;
}

.facility-station-pill:focus {
  outline: 3px solid rgba(23, 105, 170, 0.16);
  outline-offset: 2px;
}

.facility-popover {
  position: absolute;
  left: 0;
  right: auto;
  bottom: calc(100% + 8px);
  top: auto;
  z-index: 5;
  display: none;
  width: max-content;
  max-width: min(360px, calc(100vw - 48px));
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 10px;
  background: var(--panel);
  box-shadow: 0 10px 24px rgba(22, 32, 42, 0.16);
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 650;
  line-height: 1.35;
  white-space: normal;
}

.facility-popover.align-right {
  right: 0;
  left: auto;
}

.facility-popover.align-bottom {
  top: calc(100% + 8px);
  bottom: auto;
}

.facility-station-pill:hover .facility-popover,
.facility-station-pill:focus .facility-popover {
  display: block;
}

.disruption-empty {
  display: grid;
  min-height: 120px;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.chart-empty {
  display: grid;
  min-height: 260px;
  place-items: center;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.chart {
  display: block;
  width: 100%;
  height: 280px;
}

.axis-label {
  fill: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.chart-title {
  fill: var(--text);
  font-size: 14px;
  font-weight: 850;
}

.axis-title {
  fill: var(--text);
  font-size: 12px;
  font-weight: 800;
}

.axis {
  stroke: var(--axis);
  stroke-width: 1;
}

.bars rect {
  fill: var(--line);
}

@media (max-width: 760px) {
  .app-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nav-spacer {
    display: none;
  }

  .nav-button:not(.utility-button),
  .refresh-button {
    grid-column: 1 / -1;
  }

  .utility-button {
    width: 100%;
    min-width: 0;
    aspect-ratio: auto;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .all-disruptions-summary {
    justify-items: start;
    min-width: 100%;
  }

  .status-row,
  .line-filter-panel {
    justify-content: flex-start;
  }

  .controls,
  .metric-row {
    grid-template-columns: 1fr;
  }
}