/* ============================================================
   LETTER FROM DANIEL
   ============================================================ */
.letter {
  padding: 100px 0;
  background: var(--bg-1);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.letter-block {
  max-width: 980px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 64px;
  background: var(--bg-0);
  border: 1px solid var(--line);
  border-radius: var(--r-3);
  padding: 56px;
  position: relative;
}
.letter-block::before {
  content: "";
  position: absolute;
  top: 24px; left: 24px; right: 24px; bottom: 24px;
  border: 1px solid var(--line);
  border-radius: calc(var(--r-3) - 8px);
  pointer-events: none;
  opacity: 0.4;
}
.letter-meta { position: relative; }
.letter-body { position: relative; }
.letter-sign {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
@media (max-width: 820px) {
  .letter-block { grid-template-columns: 1fr; padding: 32px; gap: 32px; }
  .letter-block::before { top: 16px; left: 16px; right: 16px; bottom: 16px; }
}