:root {
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  color: #eff4f7;
  background: #07100f;
  font-synthesis: none;
  --panel: #0d1917;
  --panel-strong: #12211e;
  --border: #22332f;
  --muted: #8fa39e;
  --accent: #ffca28;
  --good: #55e09b;
  --warning: #ffb84d;
  --danger: #ff5f6d;
  --blue: #62b0ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background:
    radial-gradient(circle at 18% -10%, rgba(59, 156, 128, 0.16), transparent 28rem),
    #07100f;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 50px;
}

.topbar,
.section-heading,
.metric-heading,
.rule-row,
.rule-row label,
.audio-settings,
footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.55rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

h2 {
  font-size: 1.25rem;
  letter-spacing: -0.025em;
}

.eyebrow {
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 0.69rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.subtitle {
  margin-top: 12px;
  color: var(--muted);
}

.connection-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
  gap: 9px;
  max-width: 500px;
}

.auto-reconnect {
  display: flex;
  align-items: center;
  gap: 7px;
  width: 100%;
  justify-content: flex-end;
  color: var(--muted);
  font-size: 0.75rem;
  cursor: pointer;
}

.auto-reconnect input {
  width: 16px;
  height: 16px;
}

.button {
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 10px 14px;
  color: #eff4f7;
  background: transparent;
  font-size: 0.87rem;
  font-weight: 720;
}

.button:hover {
  filter: brightness(1.1);
}

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

.button.primary {
  color: #1d1804;
  background: var(--accent);
}

.button.secondary {
  border-color: #375049;
  background: #172824;
}

.button.ghost {
  border-color: var(--border);
  color: #b9cac6;
}

.badge,
.source-tag {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 9px;
  color: var(--muted);
  background: #0a1513;
  font-size: 0.72rem;
  font-weight: 750;
}

.badge.good {
  border-color: rgba(85, 224, 155, 0.35);
  color: var(--good);
}

.badge.danger {
  border-color: rgba(255, 95, 109, 0.4);
  color: var(--danger);
}

.badge.warning {
  border-color: rgba(255, 184, 77, 0.4);
  color: var(--warning);
}

.badge.demo {
  border-color: rgba(98, 176, 255, 0.35);
  color: var(--blue);
}

.safety-note {
  margin: 28px 0 16px;
  border: 1px solid rgba(255, 184, 77, 0.28);
  border-radius: 12px;
  padding: 12px 15px;
  color: #d7c7a7;
  background: rgba(255, 184, 77, 0.07);
  font-size: 0.86rem;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.capability-note {
  margin: 10px 3px 0;
  color: #718681;
  font-size: 0.72rem;
}

.metric-card,
.panel {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(145deg, rgba(18, 33, 30, 0.92), rgba(11, 23, 21, 0.96));
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.13);
}

.metric-card {
  min-height: 178px;
  padding: 19px;
}

.metric-heading {
  color: #b9cac6;
  font-size: 0.82rem;
  font-weight: 700;
}

.metric-value {
  display: block;
  margin-top: 25px;
  font-size: 2rem;
  line-height: 1;
  letter-spacing: -0.04em;
}

.metric-detail {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.77rem;
  line-height: 1.35;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #52635f;
  box-shadow: 0 0 0 5px rgba(82, 99, 95, 0.12);
}

.status-dot.good {
  background: var(--good);
  box-shadow: 0 0 0 5px rgba(85, 224, 155, 0.12);
}

.status-dot.danger {
  background: var(--danger);
  box-shadow: 0 0 0 5px rgba(255, 95, 109, 0.13);
}

.meter {
  height: 6px;
  margin-top: 18px;
  overflow: hidden;
  border-radius: 99px;
  background: #1e2d2a;
}

.meter span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--good);
  transition: width 160ms ease, background 160ms ease;
}

.metric-card.alert {
  border-color: rgba(255, 95, 109, 0.55);
  background: linear-gradient(145deg, rgba(71, 26, 30, 0.9), rgba(20, 24, 22, 0.96));
}

.panel {
  margin-top: 12px;
  padding: 22px;
}

.two-column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.rule-list {
  margin-top: 17px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 12px;
}

.rule-row {
  min-height: 66px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  background: rgba(4, 12, 11, 0.28);
}

.rule-row:last-child {
  border-bottom: 0;
}

.rule-row.stacked {
  display: block;
}

.rule-row.stacked label {
  min-height: 34px;
}

.rule-row strong,
.rule-row small {
  display: block;
}

.rule-row small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.73rem;
}

input[type="checkbox"] {
  width: 19px;
  height: 19px;
  accent-color: var(--accent);
}

.range-line {
  display: grid;
  grid-template-columns: 1fr 54px;
  gap: 14px;
  align-items: center;
  margin-top: 10px;
}

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

output {
  color: #dce8e5;
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
}

.audio-settings {
  justify-content: flex-start;
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.78rem;
}

.audio-settings input {
  max-width: 180px;
}

.sound-previews {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 13px;
}

.sound-preview {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 62px;
  border: 1px solid var(--border);
  border-radius: 11px;
  padding: 9px 10px;
  color: #dce8e5;
  background: rgba(4, 12, 11, 0.35);
  text-align: left;
}

.sound-preview:hover {
  background: rgba(255, 255, 255, 0.045);
}

.sound-preview strong,
.sound-preview small {
  display: block;
}

.sound-preview strong {
  font-size: 0.72rem;
  line-height: 1.25;
}

.sound-preview small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.65rem;
}

.sound-preview .play-icon {
  display: grid;
  flex: 0 0 27px;
  width: 27px;
  height: 27px;
  place-items: center;
  border-radius: 50%;
  font-size: 0.65rem;
}

.danger-sound .play-icon {
  color: var(--danger);
  background: rgba(255, 95, 109, 0.12);
}

.warning-sound .play-icon {
  color: var(--warning);
  background: rgba(255, 184, 77, 0.12);
}

.disconnect-sound .play-icon {
  color: var(--danger);
  background: rgba(255, 95, 109, 0.12);
}

.reconnect-sound .play-icon {
  color: var(--blue);
  background: rgba(98, 176, 255, 0.12);
}

.recovery-sound .play-icon {
  color: var(--good);
  background: rgba(85, 224, 155, 0.12);
}

.channel-list {
  display: grid;
  gap: 8px;
  margin-top: 17px;
}

.channel {
  display: grid;
  grid-template-columns: 44px 1fr 55px;
  align-items: center;
  gap: 10px;
  font-size: 0.76rem;
}

.channel-track {
  height: 7px;
  overflow: hidden;
  border-radius: 99px;
  background: #1e2d2a;
}

.channel-fill {
  height: 100%;
  border-radius: inherit;
  background: var(--blue);
}

.channel-value {
  color: var(--muted);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.empty-state {
  padding: 24px 12px;
  color: var(--muted);
  text-align: center;
  font-size: 0.8rem;
}

.demo-panel {
  border-color: rgba(98, 176, 255, 0.24);
}

.demo-controls {
  display: grid;
  grid-template-columns: 1fr 0.7fr;
  gap: 22px;
  margin-top: 18px;
}

.demo-controls label > span {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
  color: #c6d5d1;
  font-size: 0.83rem;
  font-weight: 680;
}

.demo-controls .danger-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid rgba(255, 95, 109, 0.24);
  border-radius: 12px;
  padding: 10px 13px;
}

.demo-controls .danger-toggle span {
  margin: 0;
}

.event-log {
  display: grid;
  max-height: 270px;
  margin: 17px 0 0;
  padding: 0;
  overflow: auto;
  list-style: none;
}

.event-item {
  display: grid;
  grid-template-columns: 78px 80px 1fr;
  gap: 12px;
  padding: 10px 4px;
  border-top: 1px solid var(--border);
  color: #c5d3d0;
  font-size: 0.79rem;
}

.event-time,
.event-kind {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.event-kind.warning {
  color: var(--warning);
}

.event-kind.danger {
  color: var(--danger);
}

.event-kind.good {
  color: var(--good);
}

footer {
  margin-top: 18px;
  padding: 0 3px;
  color: #647873;
  font-size: 0.71rem;
}

[hidden] {
  display: none !important;
}

@media (max-width: 900px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .connection-actions {
    justify-content: flex-start;
  }

  .auto-reconnect {
    justify-content: flex-start;
  }

  .status-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .two-column,
  .demo-controls {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .shell {
    width: min(100% - 20px, 1180px);
    padding-top: 20px;
  }

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

  .connection-actions .button {
    flex: 1 1 auto;
  }

  .metric-card {
    min-height: 155px;
  }

  .event-item {
    grid-template-columns: 65px 64px 1fr;
    gap: 7px;
  }

  .sound-previews {
    grid-template-columns: 1fr;
  }

  footer {
    align-items: flex-start;
    flex-direction: column;
  }
}