:root {
  color-scheme: dark;
  --bg: #101114;
  --panel: #191b20;
  --panel-2: #20242b;
  --line: #303640;
  --text: #f4f7fb;
  --muted: #9aa7b4;
  --teal: #33d7c2;
  --coral: #ff6f61;
  --amber: #f7be4b;
  --green: #5fe08f;
  --shadow: rgba(0, 0, 0, 0.35);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

button,
input,
select {
  font: inherit;
}

.app {
  width: min(960px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px 0;
}

.topbar,
.connect-panel,
.controls,
.players {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 16px 40px var(--shadow);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 28px;
  line-height: 1.05;
  letter-spacing: 0;
}

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

#statusText {
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
}

.signal {
  display: grid;
  grid-template-columns: 10px auto;
  align-items: center;
  gap: 10px;
  color: var(--muted);
}

#signalDot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 4px rgba(255, 111, 97, 0.12);
}

body.connected #signalDot {
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(95, 224, 143, 0.12);
}

.connect-panel,
.controls,
.players {
  margin-top: 16px;
  padding: 18px;
}

.connect-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: end;
}

.field {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

.field input,
.field select {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #0f1216;
  color: var(--text);
  padding: 0 12px;
  outline: none;
}

.field input:focus,
.field select:focus {
  border-color: var(--teal);
}

.primary {
  min-height: 42px;
  border: 0;
  border-radius: 6px;
  background: var(--teal);
  color: #071110;
  padding: 0 18px;
  font-weight: 800;
  cursor: pointer;
}

.controls {
  display: grid;
  gap: 16px;
}

.control-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.control {
  min-height: 74px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-2);
  color: var(--text);
  display: grid;
  align-content: center;
  gap: 4px;
  cursor: pointer;
}

.control .key {
  color: var(--muted);
  font-size: 12px;
}

.control strong {
  font-size: 18px;
  letter-spacing: 0;
}

.control[aria-pressed="true"] {
  border-color: rgba(255, 111, 97, 0.6);
  background: rgba(255, 111, 97, 0.12);
}

.control.hold.active {
  border-color: rgba(51, 215, 194, 0.7);
  background: rgba(51, 215, 194, 0.14);
}

.control:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.meter-line {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) minmax(180px, 300px);
  gap: 14px;
  align-items: center;
}

.meter {
  height: 12px;
  border-radius: 999px;
  background: #0f1216;
  overflow: hidden;
  border: 1px solid var(--line);
}

.meter span {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--teal), var(--amber), var(--coral));
  transition: width 80ms linear;
}

.range {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
}

.range input {
  width: 100%;
  accent-color: var(--teal);
}

.device-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.players header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  margin-bottom: 12px;
}

.player-list {
  display: grid;
  gap: 8px;
}

.empty {
  min-height: 54px;
  display: grid;
  place-items: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 8px;
}

.player {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  min-height: 54px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #14171c;
}

.player strong {
  display: block;
  overflow-wrap: anywhere;
}

.player small {
  color: var(--muted);
}

.badge {
  min-width: 84px;
  text-align: center;
  border-radius: 999px;
  padding: 6px 9px;
  background: rgba(51, 215, 194, 0.12);
  color: var(--teal);
  font-size: 12px;
  font-weight: 800;
}

.badge.far {
  background: rgba(247, 190, 75, 0.12);
  color: var(--amber);
}

.badge.muted {
  background: rgba(255, 111, 97, 0.12);
  color: var(--coral);
}

@media (max-width: 720px) {
  .app {
    width: min(100vw - 20px, 960px);
    padding: 10px 0;
  }

  .topbar,
  .connect-panel,
  .controls,
  .players {
    padding: 14px;
  }

  .connect-panel,
  .control-row,
  .meter-line,
  .device-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 24px;
  }
}