body {
  background-color: #f8f9fa;
  font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
}

.navbar-brand {
  font-size: 1.3rem;
  letter-spacing: 0.05em;
}

.card {
  border-radius: 12px;
}

.card-header {
  border-radius: 12px 12px 0 0 !important;
  padding: 0.75rem 1.25rem;
}

.accordion-item {
  border-radius: 10px !important;
  overflow: hidden;
}

.accordion-button:not(.collapsed) {
  background-color: #e8f4ff;
  color: #0d6efd;
}

.badge {
  font-weight: 500;
}

.table th {
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.font-monospace {
  font-family: 'Courier New', Courier, monospace;
}

.btn-primary {
  background: linear-gradient(135deg, #0d6efd, #0056d6);
  border: none;
  font-weight: 500;
}

.btn-success {
  background: linear-gradient(135deg, #198754, #146c43);
  border: none;
  font-weight: 500;
}

/* ステータスバッジ */
.badge.bg-warning {
  font-size: 0.75rem;
}

/* テーブルホバー */
.table-hover tbody tr:hover {
  background-color: #f0f4ff;
}

/* アコーディオン */
.accordion-body textarea {
  background-color: #fafafa;
  border-color: #dee2e6;
  font-size: 0.85rem;
  line-height: 1.6;
}