body {
  font-family: 'silkscreenregular', monospace}


.window {
 width: 500px;
  background: #ffdddd;        /* pink fill */
  font-family: 'silkscreenregular', monospace;

  /* light green border */
  border: 6px solid #6ecf98;

  /* add a dark green border OUTSIDE */
  box-shadow: 
    0 0 0 6px #3a7c67,        /* outer dark green */
    inset 0 0 0 3px #3a7c67;  /* inner dark green */
}

.title-bar {
  background: #b9eef4;       /* light blue top bar */
  border-bottom: 3px solid #6ecf98;
  height: 50px;      
  font-size: 26px;
  font-family: 'silkscreenregular', monospace;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 12px;
  box-shadow: inset 0 0 0 2px #3a7c67; /* darker green inner outline */
}

.buttons {
  display: flex;
  gap: 8px;
}

.btn {
  border: 3px solid #3a7c67;
  width: 32px;            
  height: 32px;
  text-align: center;
  font-size: 26px;
  line-height: 26px;
  color: #3a7c67;
  background: #b9eef4;
  font-weight: bold;
  font-family: Verdana;
  cursor: default;
}

.content {
  background: #ffdddd;       /* pink area */
  padding: 20px;
  min-height: 200px;
  box-sizing: border-box;
  box-shadow: inset 0 0 0 2px #3a7c67; /* darker green inner outline */
}