:root {
  color-scheme: light;
  --bg: #eef2f5;
  --panel: #ffffff;
  --ink: #13202b;
  --muted: #607080;
  --line: #cbd5df;
  --accent: #087f8c;
  --accent-strong: #065f69;
  --danger: #c24132;
  --danger-strong: #992f24;
  --good: #1f7a4d;
  --focus: #f6c64f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

main {
  width: min(980px, calc(100vw - 28px));
  margin: 24px auto;
  display: grid;
  gap: 16px;
}

header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
}

h1 {
  margin: 0;
  font-size: 28px;
  font-weight: 760;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 12px;
  font-size: 16px;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  font-size: 15px;
  letter-spacing: 0;
}

section {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 16px;
}

button,
input {
  font: inherit;
}

button {
  border: 0;
  background: var(--accent);
  color: #fff;
  height: 44px;
  padding: 0 16px;
  cursor: pointer;
  font-weight: 700;
}

button:hover {
  background: var(--accent-strong);
}

button:disabled {
  opacity: 0.52;
  cursor: not-allowed;
}

button:focus-visible,
input:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.danger {
  background: var(--danger);
}

.danger:hover {
  background: var(--danger-strong);
}

.status {
  min-width: 260px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 6px solid var(--accent);
  background: var(--panel);
  font-size: 16px;
  font-weight: 700;
}

.status.good {
  border-left-color: var(--good);
}

.status.warn {
  border-left-color: var(--danger);
}

.connection-row {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.connection-state {
  min-width: 250px;
  height: 48px;
  text-align: left;
  background: #5f6d7a;
  font-size: 16px;
}

.connection-state:hover {
  background: #5f6d7a;
}

.connection-state.connected,
.connection-state.connected:hover {
  background: var(--good);
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: start;
}

.speed {
  display: grid;
  grid-template-columns: 68px 1fr 52px;
  gap: 10px;
  align-items: center;
  margin: 8px 0 14px;
}

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

.pad {
  display: grid;
  grid-template-columns: repeat(3, 84px);
  grid-template-rows: repeat(3, 64px);
  gap: 8px;
  justify-content: center;
  padding: 12px 0;
}

.pad button {
  width: 84px;
  height: 64px;
  padding: 0;
  font-size: 26px;
}

.stop-button {
  display: block;
  min-width: 150px;
  height: 48px;
  margin: 8px auto 0;
  background: var(--danger);
  font-size: 16px;
}

.stop-button:hover {
  background: var(--danger-strong);
}

.telemetry {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 10px 12px;
  font-size: 15px;
}

.lights-panel {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.color-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.color-swatch {
  width: 42px;
  height: 42px;
  padding: 0;
  border: 2px solid #7b8793;
  background: var(--swatch);
}

.color-swatch:hover {
  background: var(--swatch);
  filter: brightness(0.94);
}

.color-swatch.selected {
  border-color: var(--ink);
  box-shadow: 0 0 0 4px var(--focus);
}

.light-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.effects-panel {
  margin-top: 16px;
}

.sounds-panel {
  margin-top: 16px;
}

.effects-row,
.sounds-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.effect-active {
  background: var(--good);
}

.effect-active:hover {
  background: var(--good);
}

.secondary-action {
  background: #5f6d7a;
}

.secondary-action:hover {
  background: #4b5966;
}

.label {
  color: var(--muted);
}

@media (max-width: 760px) {
  header,
  .grid {
    display: block;
  }

  header .status,
  section {
    margin-top: 16px;
  }

  .connection-state {
    min-width: 100%;
  }

  .pad {
    grid-template-columns: repeat(3, 74px);
    grid-template-rows: repeat(3, 58px);
  }

  .pad button {
    width: 74px;
    height: 58px;
  }

  .stop-button {
    width: min(220px, 100%);
    height: 48px;
  }
}