* {
  box-sizing: border-box;
}

html {
  min-width: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  letter-spacing: 0;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.5;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

button,
input {
  font: inherit;
  transition:
    filter 160ms ease,
    transform 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    background-color 160ms ease;
}

button {
  border: 0;
  cursor: pointer;
}

button:hover:not(:disabled),
input:hover:not(:disabled) {
  filter: brightness(1.04);
}

button:active:not(:disabled),
input:active:not(:disabled) {
  transform: scale(0.98);
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

button:disabled,
input:disabled {
  cursor: not-allowed;
  filter: grayscale(1);
  opacity: 0.6;
}

[hidden] {
  display: none !important;
}

.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.site-header .container {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.brand {
  display: flex;
  align-items: center;
  min-width: 0;
  color: var(--color-text);
  gap: 10px;
}

.brand:hover {
  text-decoration: none;
}

.brand-logo {
  display: inline-flex;
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  background: var(--color-primary-tint);
  border-radius: var(--radius-control);
  font-size: 18px;
  font-weight: 700;
}

.brand-name {
  display: block;
  color: var(--color-text);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.3;
}

.brand-sub {
  display: block;
  color: var(--color-text-muted);
  font-size: 12px;
  line-height: 1.2;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin-left: auto;
  gap: 20px;
}

.site-nav > a {
  color: var(--color-text-secondary);
  font-size: 14px;
}

.site-nav > a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.site-nav > a[aria-current="page"] {
  color: var(--color-primary);
  font-weight: 700;
}

.theme-toggle {
  padding: 6px 12px;
  color: var(--color-text-secondary);
  background: var(--color-bg-hero);
  border: 0;
  border-radius: var(--radius-pill);
  font-size: 15px;
}

.theme-toggle:hover {
  color: var(--color-primary);
  background: var(--color-primary-tint);
}

.controller-shell {
  flex: 1 0 auto;
  width: min(100%, 1120px);
  margin: 0 auto;
  padding: 0 24px 24px;
}

.controller-toolbar {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) auto minmax(260px, 1fr);
  align-items: center;
  min-height: 64px;
  margin: 16px 0;
  padding: 10px 16px;
  background: var(--color-surface);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
  gap: 16px;
}

.brand-block h1 {
  margin: 0;
  color: var(--color-text);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.2;
}

.brand-block span {
  display: block;
  margin-top: 2px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  padding: 6px 10px;
  color: var(--color-text-secondary);
  background: var(--color-bg-hero);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  font-size: 12px;
  gap: 8px;
  white-space: nowrap;
}

.status-dot {
  width: 8px;
  height: 8px;
  background: var(--color-text-muted);
  border-radius: 50%;
}

.status-pill[data-state="connecting"] .status-dot {
  background: var(--color-primary);
  animation: pulse 900ms ease-in-out infinite;
}

.status-pill[data-state="connected"] .status-dot {
  background: var(--color-success);
}

.status-disconnect {
  padding: 0;
  color: var(--color-text-secondary);
  background: transparent;
  font-size: 12px;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.top-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

.mode-tabs {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mode-tab {
  position: relative;
  padding: 7px 0;
  color: var(--color-text-secondary);
  background: transparent;
  font-size: 12px;
}

.mode-tab::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  background: transparent;
  content: "";
}

.mode-tab.is-active {
  color: var(--color-primary);
  font-weight: 700;
}

.mode-tab.is-active::after {
  background: var(--color-primary);
}

.mock-warning {
  margin: -4px 0 16px;
  padding: 10px 12px;
  color: var(--color-text);
  background: color-mix(in srgb, var(--color-warning) 8%, var(--color-surface));
  border-left: 3px solid var(--color-warning);
  border-radius: var(--radius-control);
  font-size: 13px;
  line-height: 1.5;
}

.disconnected-view {
  display: grid;
  min-height: calc(100vh - 112px);
  place-items: center;
}

.connect-card {
  width: min(100%, 480px);
  padding: 32px;
  background: var(--color-surface);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
}

.connect-card h2 {
  margin: 0 0 10px;
  color: var(--color-text);
  font-size: 28px;
  font-weight: 900;
  line-height: 1.15;
}

.connect-card p {
  display: grid;
  margin: 0 0 24px;
  color: var(--color-text-secondary);
  font-size: 13px;
  gap: 2px;
}

.primary-button,
.secondary-button,
.record-button {
  width: 100%;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 700;
}

.primary-button,
.record-button {
  color: var(--color-surface);
  background: var(--color-primary);
}

.secondary-button {
  color: var(--color-primary);
  background: var(--color-surface);
  border: 1px solid var(--color-primary);
}

.connect-card .primary-button {
  margin-bottom: 8px;
}

.connect-card .mock-note {
  display: block;
  margin: 6px 0 0;
  color: var(--color-text-muted);
  font-size: 11px;
}

.support-card {
  margin-top: 16px;
  padding: 14px 16px;
  color: var(--color-danger);
  background: var(--color-bg-hero);
  border: 1px solid var(--color-danger);
  border-radius: 12px;
  font-size: 12px;
}

.connected-view {
  display: grid;
  grid-template-columns: 380px minmax(0, 1fr);
  gap: 16px;
}

.drive-card,
.record-bar {
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.drive-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
  border-radius: 16px;
  gap: 16px;
}

.joystick-pad {
  position: relative;
  width: 240px;
  height: 240px;
  overflow: hidden;
  background: var(--color-bg-hero);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  touch-action: none;
}

.joystick-ring {
  position: absolute;
  inset: 72px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
}

.joystick-thumb {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 56px;
  height: 56px;
  background: var(--color-primary);
  border: 4px solid var(--color-surface);
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
  transform: translate(-50%, -50%);
  transition: transform 120ms ease;
}

.joystick-pad.is-active .joystick-thumb {
  transition: none;
}

.control-readout {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.direction-pad {
  display: grid;
  grid-template-columns: repeat(3, 44px);
  gap: 8px;
}

.rotation-row {
  display: grid;
  grid-template-columns: repeat(2, 44px);
  gap: 8px;
}

.square-button {
  width: 44px;
  height: 44px;
  padding: 0;
  color: var(--color-text);
  background: var(--color-bg-hero);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  font-size: 20px;
  font-weight: 700;
}

.emergency-button {
  width: 100%;
  min-height: 56px;
  color: var(--color-surface);
  background: var(--color-danger);
  border-radius: 12px;
  font-size: 16px;
  font-weight: 700;
}

.speed-limit {
  display: grid;
  width: 100%;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 8px;
  color: var(--color-text-secondary);
  font-size: 12px;
}

.speed-limit output {
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 12px;
}

.speed-limit input {
  grid-column: 1 / -1;
  width: 100%;
  accent-color: var(--color-primary);
}

.right-column {
  display: grid;
  align-content: start;
  gap: 16px;
}

.telemetry-section {
  display: grid;
  gap: 12px;
}

.telemetry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.telemetry-card {
  min-width: 0;
  padding: 14px;
  background: var(--color-surface);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
}

.telemetry-card h3 {
  margin: 0 0 6px;
  color: var(--color-text-muted);
  font-size: 11px;
  font-weight: 700;
}

.metric-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  min-height: 28px;
  gap: 8px;
}

.metric-value {
  min-width: 0;
  overflow-wrap: anywhere;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
}

.metric-unit {
  flex: 0 0 auto;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.telemetry-card[data-status="danger"] .metric-value {
  color: var(--color-danger);
}

.telemetry-card[data-status="warning"] .metric-value {
  color: var(--color-warning);
}

.sparkline {
  display: block;
  width: 100%;
  height: 40px;
  margin-top: 8px;
}

.raw-log {
  padding: 14px;
  background: var(--color-bg-hero);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
}

.raw-log-title {
  margin-bottom: 8px;
  color: var(--color-text-muted);
  font-size: 11px;
  font-weight: 700;
}

.raw-log pre {
  max-height: 168px;
  margin: 0;
  overflow: auto;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.45;
  white-space: pre-wrap;
}

.record-bar {
  display: grid;
  grid-template-columns: minmax(160px, auto) 1fr minmax(148px, auto);
  align-items: center;
  padding: 14px;
  border-radius: 12px;
  gap: 12px;
}

.record-bar .record-button,
.record-bar .secondary-button {
  width: auto;
}

.record-count {
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  font-size: 12px;
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  max-width: min(360px, calc(100vw - 48px));
  padding: 12px 14px;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: var(--shadow-card);
  font-size: 12px;
  z-index: 10;
}

.controller-footer {
  flex-shrink: 0;
  padding: 12px 24px;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  font-size: 13px;
  text-align: center;
}

.controller-footer a {
  color: var(--color-text-secondary);
}

.controller-footer a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(0.7);
  }
}

@media (max-width: 880px) {
  .controller-toolbar {
    grid-template-columns: 1fr;
    justify-items: stretch;
  }

  .status-pill {
    justify-self: start;
  }

  .top-actions {
    justify-content: space-between;
  }

  .connected-view {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .site-header .container {
    flex-wrap: wrap;
  }

  .site-nav {
    width: 100%;
    margin-left: 0;
    gap: 12px;
  }
}

@media (max-width: 560px) {
  .container,
  .controller-shell {
    padding-right: 16px;
    padding-left: 16px;
  }

  .controller-toolbar,
  .connect-card,
  .drive-card {
    border-radius: var(--radius-card);
  }

  .record-bar {
    grid-template-columns: 1fr;
  }

  .record-bar .record-button,
  .record-bar .secondary-button {
    width: 100%;
  }
}