* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f3f4f6;
  color: #111827;
}

.container {
  max-width: 900px;
  margin: 24px auto;
  padding: 0 16px 40px;
}

h1 {
  margin-bottom: 4px;
}

.muted {
  color: #6b7280;
}

.card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  padding: 16px;
  margin-top: 16px;
}

.status {
  margin-bottom: 12px;
  font-weight: bold;
}

.qr-wrap {
  min-height: 120px;
}

#qrImage {
  max-width: 320px;
  width: 100%;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  display: none;
}

.row {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

button {
  padding: 10px 14px;
  border: none;
  border-radius: 6px;
  background: #111827;
  color: #ffffff;
  cursor: pointer;
}

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

select {
  min-width: 320px;
  max-width: 100%;
  padding: 10px;
}

input[type="text"] {
  min-width: 320px;
  max-width: 100%;
  padding: 10px;
}

.pairing-code {
  margin-top: 10px;
  font-weight: bold;
  font-size: 18px;
  letter-spacing: 1px;
}

#contactsResult {
  white-space: pre-wrap;
  background: #111827;
  color: #e5e7eb;
  border-radius: 8px;
  padding: 12px;
  max-height: 420px;
  overflow: auto;
}