.b55-copy-wrapper {
  display: flex;
  align-items: center;
  border: 1px dashed #ccc;
  border-radius: 4px;
  overflow: hidden;
  max-width: 250px;
  margin: 0 auto;
  box-sizing: border-box;
  font-family: 'Segoe UI', sans-serif;
}
.b55-code {
  flex: 1;
  background: #fff;
  color: #2c3e50;
  font-weight: 700;
  font-size: 16px;
  text-align: center;
  padding: 10px;
  box-sizing: border-box;
}
.b55-copy-button {
  background: #ffe14a;
  color: #2c3e50;
  font-weight: 700;
  font-size: 12px;
  padding: 10px 14px;
  border: none;
  cursor: pointer;
  transition: background 0.2s;
}
.b55-copy-button:hover {
  background: #fdd835;
}

/* Tablet (481–768px) */
@media (max-width: 768px) and (min-width: 481px) {
  .b55-copy-wrapper { max-width: 200px; }
  .b55-code { font-size: 10px; padding: 8px; }
  .b55-copy-button { font-size: 8px; padding: 8px 10px; }
}

/* Mobile (≤480px) */
@media (max-width: 480px) {
  .b55-copy-wrapper { max-width: 150px; flex-wrap: nowrap; }
  .b55-code { font-size: 10px; padding: 6px; }
  .b55-copy-button { font-size: 8px; padding: 6px 8px; }
}