body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background-color: #f8f9fb;
  color: #1f1f1f;
}

.container {
  padding: 16px;
}

h1 {
  font-size: 18px;
  margin: 0 0 12px;
}

.status,
.mode,
.message {
  font-size: 14px;
  margin: 6px 0;
}

button {
  margin-top: 12px;
  background-color: #0078d4;
  color: #ffffff;
  border: none;
  border-radius: 4px;
  padding: 10px 14px;
  cursor: pointer;
  font-size: 14px;
}

button:hover {
  background-color: #106ebe;
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.message.success {
  color: #107c10;
}

.message.error {
  color: #a4262c;
}

/* ── Signature preview section ──────────────────────────────────────────── */

.divider {
  border: none;
  border-top: 1px solid #e0e0e0;
  margin: 16px 0;
}

.preview-label {
  font-size: 12px;
  font-weight: bold;
  color: #666666;
  margin: 0 0 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.preview-content {
  font-size: 13px;
  color: #1f1f1f;
  line-height: 1.6;
  padding: 10px 12px;
  background-color: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
}

.preview-content a {
  color: #0078d4;
  text-decoration: none;
}