.mc-btn {
  display: inline-block;
  margin: 1em 0;
  padding: .5em 1em;
  border: 1px solid #333;
  background: #fff;
  cursor: pointer;
  font-size: 1em;
}
.mc-modal {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.6);
  align-items: center; justify-content: center;
  z-index: 9999;
}
.mc-modal.show { display: flex; }
.mc-content {
  background: #fff; padding: 1.5em;
  max-width: 600px; border-radius: 4px;
  position: relative; box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.mc-close {
  position: absolute; top: 8px; right: 12px;
  cursor: pointer; font-size: 1.2em;
}
.mc-output {
  font-size: .95em; line-height: 1.4;
  margin-top: .5em;
}
.mc-select {
  margin-left: .5em;
}
#mc-copy-btn {
  margin-left: 1em;
}