body {
  margin: 0;
  padding: 0;
  background: #0a0a0a; /* Very dark grey, almost black */
  color: #d0d0d0; /* Soft white text */
  font-family: 'Georgia', serif; /* Serif for a personal, letter-like feel */
  line-height: 1.8;
  font-weight: 300;
}

.container {
  max-width: 700px;
  margin: 100px auto; /* Large top margin for breathing space */
  padding: 20px;
}

.letter pre {
  white-space: pre-wrap;
  word-wrap: break-word;
  font-size: 17px;
  color: #e0e0e0;
  font-family: inherit; /* Inherit Georgia */
}

.postscript {
  margin-top: 120px; /* Significant separation from the main letter */
  text-align: center;
  font-size: 13px;
  color: #555; /* Dimmed color */
  font-style: italic;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.preface {
  margin-bottom: 80px; /* Separation from the main letter */
  text-align: center;
  font-size: 13px;
  color: #555; /* Dimmed color */
  font-style: italic;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

/* Mobile responsiveness */
@media (max-width: 600px) {
  .container {
    margin: 40px auto;
    padding: 20px;
  }
  .letter pre {
    font-size: 15px;
  }
  .postscript {
    margin-top: 80px;
  }
  .preface {
    margin-bottom: 60px;
  }
}