*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: Arial, sans-serif;
}

body {
  padding: 16px;
  background: #fff;
  color: #111;
}

.mobile-app {
  max-width: 480px;
  margin: 0 auto;
}

.mobile-panel {
  border: 1px solid #ccc;
  padding: 16px;
  margin-bottom: 16px;
}

.mobile-panel h1,
.mobile-panel h2,
.mobile-panel p {
  margin-top: 0;
}

.mobile-form-row {
  margin-bottom: 12px;
}

.mobile-form-row label {
  display: block;
  margin-bottom: 4px;
}

.mobile-form-row input[type="text"],
.mobile-form-row input[type="email"] {
  width: 100%;
  padding: 8px;
}

.mobile-actions {
  display: flex;
  gap: 8px;
}

.mobile-actions button {
  padding: 8px 12px;
}

.mobile-qr {
  width: 220px;
  max-width: 100%;
  display: block;
  margin: 12px auto;
}

.mobile-mono {
  font-family: Consolas, monospace;
  word-break: break-all;
}

.mobile-muted {
  color: #555;
}

.mobile-error {
  color: #b00020;
}

.mobile-hidden {
  display: none;
}