:root {
  color-scheme: dark;
  --bridge: #090d10;
  --bridge-deep: #040607;
  --steel: #24323a;
  --steel-2: #314650;
  --glass: #87c5d4;
  --text: #e8f0ed;
  --muted: #95aaa6;
  --amber: #d8b46a;
  --signal: #8ad7c1;
  --danger: #e0876a;
  --panel: rgba(13, 21, 24, 0.88);
  --line: rgba(196, 229, 223, 0.22);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
}

body {
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 50% 18%, rgba(58, 86, 89, 0.42), transparent 34rem),
    linear-gradient(180deg, #11191d 0%, var(--bridge) 42%, var(--bridge-deep) 100%);
}

button,
input {
  font: inherit;
}

.shell {
  max-width: 980px;
  margin: 0 auto;
  padding: 1.5rem clamp(1rem, 3vw, 2rem) 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: var(--panel);
  padding: 1.25rem 1.5rem;
}

.eyebrow {
  margin: 0 0 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  color: var(--muted);
}

h1 {
  margin: 0 0 0.35rem;
  font-size: 1.6rem;
  letter-spacing: 0.02em;
}

.subtitle {
  margin: 0;
  max-width: 30rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.status-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(7rem, 1fr));
  gap: 0.75rem 1.5rem;
}

.status-strip div {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.status-strip span {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.status-strip strong {
  font-size: 1rem;
  color: var(--signal);
}

.status-strip strong.is-on {
  color: var(--amber);
}

.status-strip-wide {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.status-strip-wide span {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.status-strip-wide strong {
  font-size: 0.9rem;
  color: var(--signal);
  letter-spacing: 0.03em;
}

.control-deck {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: var(--panel);
  padding: 1rem 1.25rem;
}

.console-button {
  border: 1px solid var(--signal);
  background: rgba(138, 215, 193, 0.12);
  color: var(--signal);
  border-radius: 0.4rem;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
  transition: background 0.15s ease, opacity 0.15s ease;
}

.console-button:hover {
  background: rgba(138, 215, 193, 0.22);
}

.console-button.secondary {
  border-color: var(--steel-2);
  background: rgba(49, 70, 80, 0.35);
  color: var(--text);
}

.console-button.secondary:hover {
  background: rgba(49, 70, 80, 0.55);
}

.power-button.is-on {
  border-color: var(--amber);
  background: rgba(216, 180, 106, 0.16);
  color: var(--amber);
}

.channel-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.channel-chip {
  border: 1px solid var(--steel-2);
  background: rgba(49, 70, 80, 0.25);
  color: var(--muted);
  border-radius: 999px;
  padding: 0.4rem 0.85rem;
  font-size: 0.82rem;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.channel-chip.is-active {
  border-color: var(--signal);
  background: rgba(138, 215, 193, 0.16);
  color: var(--signal);
}

.volume-control {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-left: auto;
}

.volume-control label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.volume-control input[type="range"] {
  width: 8rem;
  accent-color: var(--signal);
}

.console-layout {
  display: grid;
  grid-template-columns: minmax(14rem, 1fr) minmax(0, 2fr);
  gap: 1.25rem;
  align-items: start;
}

.signal-panel,
.transcript-panel {
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: var(--panel);
  padding: 1rem 1.1rem;
}

.label {
  margin: 0 0 0.6rem;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

#signalMeter {
  width: 100%;
  height: auto;
  aspect-ratio: 280 / 90;
  background: var(--bridge-deep);
  border: 1px solid var(--steel-2);
  border-radius: 0.4rem;
}

.speaking-indicator {
  margin: 0.6rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
  min-height: 1.2em;
}

.speaking-indicator.is-speaking {
  color: var(--amber);
}

.transcript-log {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column-reverse;
  gap: 0.5rem;
  max-height: 22rem;
  overflow-y: auto;
}

/* Set by app.js when window.self !== window.top -- this toy runs both as a
   standalone page and as one of three panels in Bridge Station's Live
   Console, where it gets a fixed, much shorter height than a full page.
   Trimming here (not just relying on the .shell's own responsive rules)
   is what keeps Power/channels/volume and at least a few transcript lines
   visible without the iframe needing internal scrolling. */
body.is-embedded .subtitle,
body.is-embedded .eyebrow {
  display: none;
}

body.is-embedded .topbar {
  padding: 0.6rem 0.85rem;
  align-items: center;
}

body.is-embedded h1 {
  font-size: 1.05rem;
  margin: 0;
}

body.is-embedded .shell {
  padding: 0.6rem 0.75rem 0.75rem;
  gap: 0.5rem;
}

body.is-embedded .status-strip {
  gap: 0.3rem 0.9rem;
}

body.is-embedded .status-strip span {
  font-size: 0.6rem;
}

body.is-embedded .status-strip strong {
  font-size: 0.82rem;
}

body.is-embedded .control-deck {
  padding: 0.5rem 0.7rem;
  gap: 0.5rem;
}

body.is-embedded .console-button,
body.is-embedded .channel-chip {
  padding: 0.3rem 0.6rem;
  font-size: 0.75rem;
}

body.is-embedded .volume-control input[type="range"] {
  width: 5rem;
}

body.is-embedded .signal-panel,
body.is-embedded .transcript-panel {
  padding: 0.6rem 0.75rem;
}

body.is-embedded .transcript-log {
  max-height: 6rem;
}

body.is-embedded #signalMeter {
  aspect-ratio: 280 / 44;
}

.transcript-log li {
  border-left: 2px solid var(--steel-2);
  padding: 0.2rem 0 0.2rem 0.7rem;
  font-size: 0.86rem;
}

.transcript-log li.is-new {
  border-left-color: var(--amber);
}

.transcript-log .speaker {
  color: var(--signal);
  font-weight: 600;
  margin-right: 0.4rem;
}

.transcript-log .timestamp {
  color: var(--muted);
  font-size: 0.72rem;
  margin-left: 0.4rem;
}

.transcript-log .channel-tag {
  display: inline-block;
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  border: 1px solid var(--steel-2);
  border-radius: 999px;
  padding: 0.05rem 0.45rem;
  margin-right: 0.5rem;
}

.empty-note {
  color: var(--muted);
  font-style: italic;
}

.newswire-panel {
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: var(--panel);
  padding: 1rem 1.1rem;
}

.newswire-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}

.newswire-attribution {
  margin: 0;
  font-size: 0.72rem;
  color: var(--muted);
}

.newswire-log {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 14rem;
  overflow-y: auto;
}

.newswire-log li {
  border-left: 2px solid var(--steel-2);
  padding: 0.2rem 0 0.2rem 0.7rem;
  font-size: 0.86rem;
}

.newswire-log a {
  color: var(--text);
  text-decoration: none;
}

.newswire-log a:hover {
  color: var(--signal);
  text-decoration: underline;
}

.newswire-log .timestamp {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  margin-top: 0.1rem;
}

body.is-embedded .newswire-panel {
  padding: 0.6rem 0.75rem;
}

body.is-embedded .newswire-log {
  max-height: 6rem;
}

@media (max-width: 780px) {
  .volume-control {
    margin-left: 0;
    width: 100%;
  }
  .volume-control input[type="range"] {
    flex: 1;
  }
}

/* Narrower than a real standalone mobile view (see the 780px rule above,
   which only relaxes volume-control layout): below this, even the two-
   column signal/transcript layout gets cramped enough to stack. Bridge's
   embedded width (~490-510px) stays above this, a real narrow phone does
   not. */
@media (max-width: 420px) {
  .console-layout {
    grid-template-columns: 1fr;
  }
}