:root {
  color-scheme: dark;
  font-family: Inter, "Segoe UI", "Microsoft YaHei", sans-serif;
  background: #050a0e;
  color: #dbe9ef;
  --panel: rgba(13, 24, 32, 0.92);
  --border: rgba(116, 151, 168, 0.19);
  --muted: #78909d;
  --accent: #42dfb7;
  --warning: #ffb257;
  --danger: #ff6577;
}

* {
  box-sizing: border-box;
}

body {
  min-width: 1100px;
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 25% 0%,
      rgba(32, 117, 106, 0.16), transparent 34%),
    linear-gradient(145deg, #071018, #030609 72%);
}

button,
select {
  font: inherit;
}

.app-shell {
  min-height: 100vh;
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  max-width: 1800px;
  margin: 0 auto 18px;
}

.eyebrow {
  margin: 0 0 7px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

h1 {
  margin: 0;
  font-size: 26px;
  font-weight: 650;
}

.connection {
  display: flex;
  gap: 9px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--danger);
  box-shadow: 0 0 12px rgba(255, 101, 119, 0.45);
}

.dot.online {
  background: var(--accent);
  box-shadow: 0 0 12px rgba(66, 223, 183, 0.5);
}

.workspace {
  display: grid;
  grid-template-columns: 320px minmax(600px, 1fr) 340px;
  gap: 14px;
  max-width: 1800px;
  min-height: calc(100vh - 112px);
  margin: 0 auto;
}

.panel {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel);
  box-shadow: 0 20px 55px rgba(0, 0, 0, 0.25);
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  padding: 0 16px;
  border-bottom: 1px solid var(--border);
  color: #bcd0d9;
  font-size: 13px;
  font-weight: 650;
}

.controls-panel {
  max-height: calc(100vh - 112px);
  overflow-y: auto;
  padding-bottom: 18px;
}

.controls-panel > :not(.panel-heading) {
  margin-right: 16px;
  margin-left: 16px;
}

.text-button {
  width: auto;
  padding: 4px 0;
  border: 0;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  font-size: 12px;
}

.field-label,
.group-label {
  display: block;
  margin-top: 20px;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

select,
.button-grid button,
.drive-pad button {
  border: 1px solid rgba(126, 164, 182, 0.23);
  border-radius: 8px;
  background: #101e27;
  color: #dbe9ef;
}

select {
  width: calc(100% - 32px);
  padding: 10px;
}

.virtual-remote {
  margin-top: 18px !important;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(5, 12, 17, 0.58);
}

.remote-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.remote-heading .group-label {
  margin: 0;
}

#remote-state {
  color: var(--muted);
  font-size: 10px;
}

#remote-state.active {
  color: var(--accent);
}

.remote-pad {
  display: grid;
  grid-template-columns: repeat(3, 54px);
  gap: 7px;
  justify-content: center;
  margin: 12px 0 8px;
  touch-action: none;
  user-select: none;
}

.remote-pad button {
  width: 54px;
  height: 45px;
  padding: 0;
  border: 1px solid rgba(126, 164, 182, 0.3);
  border-radius: 9px;
  background: #101e27;
  color: #dbe9ef;
  cursor: pointer;
  font-size: 22px;
}

.remote-pad button:hover,
.remote-pad button.pressed {
  border-color: var(--accent);
  background: rgba(66, 223, 183, 0.18);
  color: #78f0d5;
}

.remote-pad .remote-stop {
  border-color: rgba(255, 101, 119, 0.45);
  color: #ff98a5;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.remote-help,
.remote-mode-note {
  margin: 7px 0 0;
  color: #718a96;
  font-size: 9px;
  line-height: 1.45;
  text-align: center;
}

.remote-slider {
  display: grid;
  gap: 4px;
  margin-top: 10px;
  color: #8fa8b4;
  font-size: 10px;
}

.remote-slider span {
  display: flex;
  justify-content: space-between;
}

.remote-slider output {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.remote-slider input {
  height: 18px;
  padding: 0;
  accent-color: var(--accent);
}

.action-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
}

.action-grid button {
  min-height: 38px;
  border: 1px solid rgba(126, 164, 182, 0.23);
  border-radius: 8px;
  background: #101e27;
  color: #dbe9ef;
  cursor: pointer;
  transition:
    border-color 120ms,
    background 120ms,
    transform 120ms;
}

.action-grid button:hover {
  border-color: var(--accent);
  background: #142c31;
  transform: translateY(-1px);
}

.action-grid .danger-button {
  border-color: rgba(255, 101, 119, 0.45);
  color: #ff98a5;
}

.configuration {
  margin-top: 18px !important;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 13px 0 16px;
}

.configuration summary {
  color: #bcd0d9;
  cursor: pointer;
  font-size: 12px;
  font-weight: 650;
}

.configuration select {
  width: 100%;
}

.numeric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.numeric-grid label,
.layout-row label {
  display: grid;
  gap: 4px;
  color: var(--muted);
  font-size: 9px;
}

input {
  width: 100%;
  min-width: 0;
  padding: 7px 5px;
  border: 1px solid rgba(126, 164, 182, 0.23);
  border-radius: 6px;
  outline: 0;
  background: #0b171f;
  color: #dbe9ef;
  font: inherit;
  font-variant-numeric: tabular-nums;
}

input:focus {
  border-color: var(--accent);
}

.layout-rows {
  display: grid;
  gap: 7px;
  max-height: 275px;
  overflow-y: auto;
}

.layout-row {
  display: grid;
  grid-template-columns: 48px repeat(3, 1fr);
  gap: 5px;
  align-items: end;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: rgba(5, 12, 17, 0.6);
}

.layout-row strong {
  align-self: center;
  color: #9cb2bd;
  font-size: 10px;
}

.primary-button {
  width: 100%;
  margin-top: 10px;
  padding: 9px;
  border: 1px solid rgba(66, 223, 183, 0.5);
  border-radius: 7px;
  background: rgba(66, 223, 183, 0.12);
  color: #78f0d5;
  cursor: pointer;
}

.message {
  min-height: 56px;
  margin-top: 18px !important;
  padding: 11px;
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  background: rgba(66, 223, 183, 0.07);
  color: #a8c4cf;
  font-size: 12px;
  line-height: 1.5;
}

.message.error {
  border-left-color: var(--danger);
  background: rgba(255, 101, 119, 0.08);
}

.legend {
  display: grid;
  gap: 10px;
  margin-top: 22px !important;
  color: var(--muted);
  font-size: 11px;
}

.legend > div {
  display: flex;
  gap: 9px;
  align-items: center;
}

.legend-line {
  width: 24px;
  height: 0;
  border-top: 3px solid var(--accent);
}

.legend-line.target {
  border-top-style: dashed;
  border-top-color: var(--warning);
}

.legend-line.zero {
  border-top-width: 1px;
  border-top-style: dashed;
  border-top-color: #56a7ff;
}

.axis-swatch {
  width: 24px;
  height: 3px;
  background: #ff6477;
}

.axis-swatch.y-axis {
  background: #54d991;
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.legend-dot.aligning {
  background: var(--warning);
}

.viewport-panel {
  display: flex;
  min-width: 0;
  flex-direction: column;
}

.coordinate-note,
#update-rate {
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
}

#world-canvas {
  display: block;
  width: 100%;
  height: calc(100% - 48px);
  min-height: 620px;
}

.vehicle-cards {
  display: grid;
  gap: 9px;
  padding: 12px;
}

.status-panel {
  max-height: calc(100vh - 112px);
  overflow-y: auto;
}

.wheel-detail {
  padding: 12px;
  border-bottom: 1px solid var(--border);
}

.geometry-note {
  margin-bottom: 11px;
  color: #8fa8b4;
  font-size: 10px;
  line-height: 1.5;
}

.wheel-row {
  margin-top: 10px;
}

.wheel-row-title {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  color: #9eb4be;
  font-size: 10px;
}

.wheel-row-title span {
  font-variant-numeric: tabular-nums;
}

.angle-scale {
  position: relative;
  height: 8px;
  margin: 6px 0 3px;
  border-radius: 4px;
  background:
    linear-gradient(90deg,
      rgba(181, 140, 255, 0.42),
      rgba(66, 223, 183, 0.15) 50%,
      rgba(181, 140, 255, 0.42));
}

.zero-mark,
.target-mark,
.actual-mark {
  position: absolute;
  top: -3px;
  width: 2px;
  height: 14px;
  transform: translateX(-1px);
}

.zero-mark {
  left: 50%;
  background: #56a7ff;
}

.target-mark {
  background: var(--warning);
}

.actual-mark {
  width: 3px;
  background: var(--accent);
}

.wheel-speed {
  color: #617b88;
  font-size: 9px;
  text-align: right;
}

.vehicle-card {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: rgba(9, 18, 24, 0.78);
  color: inherit;
  cursor: pointer;
  text-align: left;
}

.vehicle-card.selected {
  border-color: rgba(66, 223, 183, 0.7);
  background: rgba(36, 120, 105, 0.11);
}

.card-topline {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
}

.status-ready {
  color: var(--accent);
}

.status-aligning {
  color: var(--warning);
}

.mode-name {
  margin: 7px 0 9px;
  color: #91a9b5;
  font-size: 12px;
}

dl {
  display: grid;
  gap: 5px;
  margin: 0;
  font-size: 11px;
}

dl div {
  display: flex;
  justify-content: space-between;
}

dt {
  color: #607985;
}

dd {
  margin: 0;
  color: #bcd0d9;
  font-variant-numeric: tabular-nums;
}

@media (max-width: 1300px) {
  body {
    min-width: 1100px;
  }

  .workspace {
    grid-template-columns: 285px minmax(520px, 1fr) 305px;
  }
}