body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
}
.app-shell {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px;
}
header {
  margin-bottom: 20px;
}
header h1 {
  margin: 0;
  font-size: 2rem;
}
.card {
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid rgba(148, 163, 184, 0.15);
  padding: 18px;
  border-radius: 16px;
  margin-bottom: 18px;
}
.field {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
}
input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #475569;
  background: #020617;
  color: #e2e8f0;
  margin-top: 6px;
}
button {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 12px;
  font-weight: 700;
  cursor: pointer;
}
button.primary {
  background: #2563eb;
  color: white;
}
.status-message {
  margin-top: 10px;
  color: #94a3b8;
}

.video-wrap {
  margin-top: 12px;
}

#remoteVideo {
  width: 100%;
  height: auto;
  background: black;
  border-radius: 8px;
}
footer {
  text-align: center;
  color: #94a3b8;
  font-size: 0.9rem;
}