:root {
  color-scheme: dark;
  font: 15px/1.5 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #e8edf7;
  background: #0b1220;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  --surface: #111b2c;
  --surface-raised: #162237;
  --border: #23314a;
  --muted: #91a0b8;
  --accent: #63d6c3;
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  margin: 0;
}

button,
a {
  font: inherit;
}

.shell {
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 0 clamp(20px, 5vw, 72px);
  border-bottom: 1px solid var(--border);
  background: rgb(11 18 32 / 94%);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #f4f7fc;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid #28534f;
  border-radius: 12px;
  background: #122b31;
  color: var(--accent);
  font-size: 1.2rem;
}

.topbar-meta {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-size: 0.86rem;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.theme-toggle {
  padding: 7px 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-raised);
  color: inherit;
  cursor: pointer;
}

.theme-toggle:hover {
  border-color: var(--accent);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #f0b65d;
  box-shadow: 0 0 12px #f0b65d55;
}

.status-dot.online {
  background: var(--accent);
  box-shadow: 0 0 12px #63d6c388;
}

main {
  width: min(1480px, 100%);
  margin: 0 auto;
  padding: 38px clamp(18px, 5vw, 72px) 56px;
}

.page-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  color: #f4f7fc;
  font-size: clamp(1.8rem, 4vw, 2.55rem);
  letter-spacing: -0.045em;
  line-height: 1.15;
}

.subtitle {
  margin: 9px 0 0;
  color: var(--muted);
}

.source-tag {
  padding: 7px 11px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: #bac5d7;
  font-size: 0.78rem;
  white-space: nowrap;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.metric,
.panel {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: 0 10px 30px #03081225;
}

.metric {
  min-height: 136px;
  padding: 19px 20px;
}

.metric-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 0.84rem;
}

.metric-icon {
  color: var(--accent);
  font-size: 1.05rem;
}

.metric-value {
  display: block;
  margin-top: 14px;
  color: #f4f7fc;
  font-size: clamp(1.55rem, 3vw, 2rem);
  font-weight: 650;
  letter-spacing: -0.04em;
  line-height: 1.1;
}

.metric-unit {
  margin-left: 6px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 450;
  letter-spacing: 0;
}

.panel {
  overflow: hidden;
}

.map-panel {
  margin-bottom: 18px;
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 20px;
}

h2 {
  margin: 0;
  color: #e8edf7;
  font-size: 1rem;
  font-weight: 620;
}

.panel-caption {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 0.78rem;
}

.map-live {
  color: #a6b5c9;
  font-size: 0.78rem;
  text-align: right;
}

#map {
  height: min(56vh, 560px);
  min-height: 340px;
  background: #101a29;
}

.leaflet-container {
  background: #101a29;
  font: inherit;
}

.leaflet-control-attribution,
.leaflet-control-zoom a {
  border-color: #34445e !important;
  background: #111b2c !important;
  color: #d8e1ef !important;
}

.leaflet-popup-content-wrapper,
.leaflet-popup-tip {
  background: #111b2c;
  color: #e8edf7;
}

.plane-marker {
  color: #63d6c3;
  font-size: 21px;
  line-height: 24px;
  text-shadow: 0 1px 4px #07101e;
}

.lower-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 18px;
}

.chart-wrap {
  height: 270px;
  padding: 0 18px 18px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  white-space: nowrap;
}

th,
td {
  padding: 12px 16px;
  border-top: 1px solid #202d42;
}

th {
  color: #8998b0;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

td {
  color: #d2dbea;
  font-size: 0.82rem;
}

tbody tr:hover {
  background: #18243a;
}

.empty-cell {
  padding: 26px 16px;
  color: var(--muted);
  text-align: center;
}

[data-theme="light"] {
  color-scheme: light;
  color: #263449;
  background: #f4f7fb;
  --surface: #ffffff;
  --surface-raised: #edf2f8;
  --border: #d5deea;
  --muted: #65758c;
  --accent: #087f72;
}

[data-theme="light"] .topbar {
  background: rgb(255 255 255 / 94%);
}

[data-theme="light"] .brand,
[data-theme="light"] h1,
[data-theme="light"] h2,
[data-theme="light"] .metric-value {
  color: #1d2a3c;
}

[data-theme="light"] .brand-mark {
  border-color: #b8ddd7;
  background: #e5f5f2;
}

[data-theme="light"] .source-tag,
[data-theme="light"] .map-live,
[data-theme="light"] td {
  color: #526176;
}

[data-theme="light"] th,
[data-theme="light"] td {
  border-color: #e0e6ee;
}

[data-theme="light"] tbody tr:hover {
  background: #f1f5f9;
}

[data-theme="light"] .leaflet-control-attribution,
[data-theme="light"] .leaflet-control-zoom a {
  border-color: #cbd5e1 !important;
  background: #fff !important;
  color: #263449 !important;
}

[data-theme="light"] .leaflet-popup-content-wrapper,
[data-theme="light"] .leaflet-popup-tip {
  background: #fff;
  color: #263449;
}

[data-theme="light"] footer {
  color: #65758c;
}

#error {
  margin: 0 0 18px;
  color: #ff9c9c;
  font-size: 0.88rem;
}

#error:empty {
  display: none;
}

footer {
  padding: 22px 0 0;
  color: #718099;
  font-size: 0.76rem;
  text-align: center;
}

@media (max-width: 900px) {
  .metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lower-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .topbar {
    min-height: 64px;
    padding: 0 16px;
  }

  .topbar-meta {
    font-size: 0.75rem;
  }

  .topbar-actions {
    gap: 10px;
  }

  .theme-toggle {
    padding: 6px 8px;
    font-size: 0.78rem;
  }

  main {
    padding: 28px 14px 38px;
  }

  .page-heading {
    align-items: start;
    flex-direction: column;
    gap: 14px;
  }

  .metrics {
    gap: 10px;
  }

  .metric {
    min-height: 118px;
    padding: 15px;
  }

  .metric-label {
    font-size: 0.76rem;
  }

  .metric-value {
    font-size: 1.55rem;
  }

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

  .map-live {
    text-align: left;
  }

  #map {
    height: 52vh;
    min-height: 300px;
  }

  .chart-wrap {
    height: 230px;
    padding-right: 10px;
    padding-left: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}

.map-toolbar {
  display: flex;
  align-items: end;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0 20px 16px;
}

.map-toolbar label,
.interval-control,
.speed-control {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 600;
}

.map-toolbar input:not([type="checkbox"]),
.map-toolbar select,
.interval-control select,
.speed-control select {
  min-height: 36px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-raised);
  color: inherit;
  font: inherit;
}

.search-control {
  flex: 1 1 190px;
}

.filter-control {
  flex: 0 1 145px;
}

.altitude-control {
  flex: 1 1 150px;
  min-width: 140px;
}

.altitude-control span {
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.altitude-control input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.altitude-control input[type="range"]:disabled {
  opacity: 0.45;
}

.toggle-control {
  display: flex !important;
  min-height: 36px;
  align-items: center;
  gap: 7px !important;
  white-space: nowrap;
}

.toggle-control input {
  accent-color: var(--accent);
}

.toolbar-button {
  min-height: 36px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-raised);
  color: inherit;
  font: inherit;
  font-size: 0.78rem;
  cursor: pointer;
}

.toolbar-button:hover,
.toolbar-button[aria-pressed="true"] {
  border-color: var(--accent);
  color: var(--accent);
}

.toolbar-button:focus-visible,
.sort-button:focus-visible,
.drawer-close:focus-visible,
.aircraft-row:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.map-stage {
  position: relative;
}

.aircraft-drawer {
  position: absolute;
  z-index: 500;
  top: 14px;
  right: 14px;
  width: min(340px, calc(100% - 28px));
  max-height: calc(100% - 28px);
  overflow-y: auto;
  padding: 18px;
  border: 1px solid #34445e;
  border-radius: 14px;
  background: rgb(17 27 44 / 97%);
  color: #e8edf7;
  box-shadow: 0 14px 40px #03081275;
}

.aircraft-drawer[hidden] {
  display: none;
}

.drawer-close {
  position: absolute;
  top: 10px;
  right: 12px;
  width: 32px;
  height: 32px;
  border: 1px solid #34445e;
  border-radius: 8px;
  background: transparent;
  color: inherit;
  font-size: 1.25rem;
  cursor: pointer;
}

.drawer-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 10px 0;
}

.aircraft-silhouette {
  color: var(--accent);
  font-size: 1.8rem;
}

.drawer-title h3 {
  margin: 0;
  font-size: 1.05rem;
  overflow-wrap: anywhere;
}

.drawer-title p,
.route-note {
  margin: 3px 0 0;
  color: #a6b5c9;
  font-size: 0.75rem;
}

.route-note {
  padding: 9px 0;
  border-top: 1px solid #26364e;
  border-bottom: 1px solid #26364e;
}

.telemetry-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 10px;
  margin: 14px 0 0;
}

.telemetry-grid dt {
  color: #91a0b8;
  font-size: 0.68rem;
  text-transform: uppercase;
}

.telemetry-grid dd {
  margin: 3px 0 0;
  font-size: 0.8rem;
  overflow-wrap: anywhere;
}

.vertical-climbing {
  color: #63d6c3;
}

.vertical-descending {
  color: #f0b65d;
}

.vertical-cruising {
  color: #9bb7d8;
}

.squawk-emergency {
  padding: 2px 6px;
  border-radius: 5px;
  background: #612d37;
  color: #ffb4b4;
  font-weight: 700;
}

.squawk-7500 {
  background: #612d37;
  color: #ffb4b4;
}

.squawk-7600 {
  background: #49331f;
  color: #ffd08b;
}

.squawk-7700 {
  background: #612d37;
  color: #ffb4b4;
}

.playback {
  padding: 14px 20px 16px;
}

.playback-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.speed-control {
  display: flex;
  align-items: center;
  gap: 7px;
}

.speed-control select,
.interval-control select {
  min-height: 32px;
}

.playback-time {
  margin-left: auto;
  color: #a6b5c9;
  font-size: 0.78rem;
}

#timeline-slider {
  width: 100%;
  margin: 12px 0 0;
  accent-color: var(--accent);
}

.playback > .panel-caption {
  margin-top: 0;
}

.interval-control {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.plane-marker {
  color: #63d6c3;
}

.plane-emergency {
  text-shadow: 0 0 10px #ff7474;
}

.aircraft-row {
  cursor: pointer;
}

.sort-button {
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  text-transform: inherit;
  cursor: pointer;
}

.sort-button:hover {
  color: var(--accent);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 3px 7px;
  border-radius: 999px;
  font-size: 0.68rem;
}

.status-badge.cruising,
.status-badge.climbing {
  background: #173a34;
  color: #83e5d2;
}

.status-badge.descending {
  background: #49331f;
  color: #ffd08b;
}

[data-theme="light"] .aircraft-drawer {
  border-color: #cbd5e1;
  background: rgb(255 255 255 / 97%);
  color: #263449;
}

[data-theme="light"] .drawer-title p,
[data-theme="light"] .route-note,
[data-theme="light"] .playback-time {
  color: #526176;
}

[data-theme="light"] .route-note {
  border-color: #e0e6ee;
}

[data-theme="light"] .telemetry-grid dt {
  color: #65758c;
}

[data-theme="light"] .status-badge.cruising,
[data-theme="light"] .status-badge.climbing {
  background: #e1f5f0;
  color: #087f72;
}

[data-theme="light"] .status-badge.descending {
  background: #fff0d9;
  color: #9a5b00;
}

@media (max-width: 560px) {
  .map-toolbar {
    align-items: stretch;
    padding: 0 14px 14px;
  }

  .map-toolbar label,
  .map-toolbar .toolbar-button,
  .toggle-control {
    flex: 1 1 42%;
  }

  .playback {
    padding: 12px 14px;
  }

  .playback-time {
    flex-basis: 100%;
    margin-left: 0;
  }
}

.dark-tiles {
  filter: invert(1) hue-rotate(200deg) brightness(0.85) contrast(0.9) saturate(0.6);
}

[data-theme="light"] .dark-tiles {
  filter: none;
}