* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: sans-serif;
}

body {
  width: 100%;
  min-height: 100dvh;
  background: white;
  display: grid;
  place-content: center;
}

button {
  width: 100px;
  padding: 7px 5px;
  background: rgb(0, 0, 0);
  color: white;
  border-radius: 5px;
  border: none;
  cursor: pointer;
}

.modal-overlay {
  width: 100dvw;
  height: 100dvh;
  padding: 20px;
  background: rgba(0, 0, 0, 0.1);
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
  display: none;
}

.modal-overlay.is-visible {
  display: block;
}

.modal-content {
  min-width: 200px;
  padding: 10px;
  background: white;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  border-radius: 8px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1000;
}