:root {
  --bg: #10131a;
  --panel: #181d28;
  --panel-raised: #1f2532;
  --border: #2a3140;
  --text: #eceff4;
  --text-muted: #8994a8;
  --accent-source: #3fc7b8;   /* original broadcast signal */
  --accent-mic: #f2a93b;      /* interpreter mic signal */
  --accent-danger: #e5533d;
  --radius: 10px;
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-display);
}

body {
  min-height: 100vh;
  min-height: 100dvh;
}

.hidden { display: none !important; }

:focus-visible {
  outline: 2px solid var(--accent-mic);
  outline-offset: 2px;
}

button {
  font-family: inherit;
  cursor: pointer;
}

code {
  font-family: var(--font-mono);
}

/* ---------------------------------------------------------------- brand */

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.brand-mark {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-mic);
  box-shadow: 0 0 0 3px rgba(242, 169, 59, 0.18);
  flex-shrink: 0;
}

.brand h1 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0;
}

.brand-name {
  font-weight: 600;
  letter-spacing: 0.01em;
}

/* ---------------------------------------------------------------- login */

.screen {
  min-height: 100vh;
  min-height: 100dvh;
}

#loginScreen {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background:
    radial-gradient(circle at 20% 10%, rgba(63, 199, 184, 0.08), transparent 40%),
    radial-gradient(circle at 80% 90%, rgba(242, 169, 59, 0.08), transparent 40%),
    var(--bg);
}

.login-card {
  width: 100%;
  max-width: 360px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}

.brand-tagline {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0.5rem 0 1.5rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.field input,
.field select {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text);
  background: var(--panel-raised);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem 0.7rem;
}

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

.btn {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.7rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  background: var(--panel-raised);
  color: var(--text);
  transition: transform 0.08s ease, border-color 0.15s ease;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn:active { transform: scale(0.98); }

.btn-primary {
  width: 100%;
  background: var(--accent-mic);
  border-color: var(--accent-mic);
  color: #1a1305;
}

.btn-ghost {
  background: transparent;
}

.field-error {
  color: var(--accent-danger);
  font-size: 0.82rem;
  min-height: 1.2em;
  margin: 0.5rem 0 0;
}

/* -------------------------------------------------------------- console */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.welcome {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.console-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  grid-template-rows: auto auto;
  gap: 1rem;
  padding: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.panel-heading h2 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin: 0;
  font-weight: 600;
}

.panel-video { grid-column: 1; grid-row: 1; }
.panel-controls { grid-column: 2; grid-row: 1; }
.panel-meters { grid-column: 1 / -1; grid-row: 2; }

.video-frame {
  position: relative;
  background: #000;
  border-radius: 6px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
}

.video-frame video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.autoplay-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  background: rgba(16, 19, 26, 0.75);
  color: var(--text);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
}

.autoplay-overlay:hover {
  background: rgba(16, 19, 26, 0.85);
}

.panel-heading-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-icon {
  padding: 0.25rem 0.5rem;
  font-size: 0.9rem;
  line-height: 1;
}

.btn-icon:active {
  transform: scale(0.9) rotate(-40deg);
}

.status-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.2rem 0.55rem;
  border-radius: 99px;
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.status-pill[data-state="live"],
.status-pill[data-state="good"] {
  color: var(--accent-source);
  border-color: var(--accent-source);
}

.status-pill[data-state="fair"] {
  color: var(--accent-mic);
  border-color: var(--accent-mic);
}

.status-pill[data-state="error"],
.status-pill[data-state="poor"],
.status-pill[data-state="offline"] {
  color: var(--accent-danger);
  border-color: var(--accent-danger);
}

.stream-id-readout {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin: 0.75rem 0 1.25rem;
  font-size: 0.85rem;
}

.stream-id-readout .label {
  color: var(--text-muted);
}

.stream-id-readout code {
  color: var(--accent-mic);
}

.btn-mic {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background: var(--panel-raised);
  padding: 0.85rem 1rem;
  font-size: 0.95rem;
}

.mic-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--text-muted);
  flex-shrink: 0;
}

.btn-mic[aria-pressed="true"] {
  border-color: var(--accent-mic);
  background: rgba(242, 169, 59, 0.1);
}

.btn-mic[aria-pressed="true"] .mic-dot {
  background: var(--accent-mic);
  box-shadow: 0 0 8px rgba(242, 169, 59, 0.7);
  animation: pulse 1.6s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  .btn-mic[aria-pressed="true"] .mic-dot { animation: none; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.hint {
  color: var(--text-muted);
  font-size: 0.78rem;
  line-height: 1.4;
  margin-top: 1rem;
}

/* ---------------------------------------------------------------- meters */

.signal-chain {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.signal-node {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  flex: 1 1 220px;
}

.signal-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.signal-node-output .signal-label {
  color: var(--text);
}

.meter {
  width: 100%;
  height: 28px;
  background: #0b0d12;
  border: 1px solid var(--border);
  border-radius: 4px;
  display: block;
}

.signal-arrow {
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 1.2rem;
  padding-bottom: 0.4rem;
}

/* ---------------------------------------------------------------- mobile */

@media (max-width: 760px) {
  .console-grid {
    grid-template-columns: 1fr;
  }
  .panel-video { grid-column: 1; grid-row: 1; }
  .panel-controls { grid-column: 1; grid-row: 2; }
  .panel-meters { grid-column: 1; grid-row: 3; }
  .signal-arrow { display: none; }
  .signal-chain { flex-direction: column; align-items: stretch; }
}