:root {
  --bg: #0f172a;
  --panel: #111827;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --ok: #10b981;
  --warn: #f59e0b;
  --btn: #2563eb;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: radial-gradient(circle at top left, #1e293b, var(--bg));
  color: var(--text);
}

.app {
  max-width: 860px;
  margin: 24px auto;
  padding: 0 16px 32px;
}

h1 { margin: 0 0 8px; }

.lead {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 0.95rem;
}

h2 { margin: 0 0 10px; font-size: 1rem; }

.card {
  background: color-mix(in srgb, var(--panel) 90%, #000);
  border: 1px solid #334155;
  border-radius: 12px;
  padding: 14px;
  margin-bottom: 14px;
}

label {
  display: block;
  margin: 8px 0 4px;
  color: var(--muted);
  font-size: 0.9rem;
}

input {
  width: 100%;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #475569;
  background: #0b1220;
  color: var(--text);
}

.row {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

button {
  border: 0;
  border-radius: 8px;
  padding: 10px 14px;
  color: white;
  background: var(--btn);
  cursor: pointer;
}

button[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}

#status { color: var(--ok); }

#participants {
  margin: 0;
  padding-left: 20px;
}

#logs {
  margin: 0;
  min-height: 170px;
  white-space: pre-wrap;
  color: #cbd5e1;
}

#remoteAudio {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}