body {
  background-color: #121212;
  color: #ffffff;
  font-family: 'Segoe UI', sans-serif;
}

.sheet-section {
  min-height: 100vh;
  padding-top: 50px;
  padding-bottom: 50px;
  background: linear-gradient(to bottom right, #1a1a1a, #2c2c2c);
}

.table th, .table td {
  vertical-align: middle;
  text-align: center;
}

@media (max-width: 576px) {
  .table th, .table td {
    font-size: 12px;
    padding: 0.4rem;
  }
}