* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #f4f6f8;
  color: #1f2937;
}
.shell { max-width: 1240px; margin: 0 auto; padding: 24px; }
.topbar { display: flex; justify-content: space-between; align-items: end; margin-bottom: 20px; }
.topbar h1 { margin: 0; font-size: 28px; }
.topbar p { margin: 4px 0 0; color: #6b7280; }
.panel {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
}
.grid-2, .form-grid { display: grid; gap: 12px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 720px; }
label { display: grid; gap: 6px; font-size: 14px; }
input, select, textarea, button {
  border: 1px solid #d1d5db;
  border-radius: 6px;
  padding: 10px 12px;
  font: inherit;
}
textarea { min-height: 90px; resize: vertical; }
button { background: #111827; color: #fff; cursor: pointer; }
button.danger, .danger { background: #b91c1c; color: #fff; }
.inline-form { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.inline-form input, .inline-form select { min-width: 160px; }
.actions { display: flex; gap: 8px; align-items: end; }
.list { display: grid; gap: 8px; }
.item { border: 1px solid #e5e7eb; border-radius: 6px; padding: 10px 12px; background: #fafafa; }
.item-head { display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.item-title { font-weight: 600; }
.item-meta, .muted, .error { color: #6b7280; font-size: 13px; }
.hidden { display: none; }
.tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.tab.active { background: #2563eb; }
.stack { display: grid; gap: 16px; }
.badge { padding: 8px 12px; background: #e5e7eb; border-radius: 999px; }
@media (max-width: 900px) {
  .grid-2, .form-grid { grid-template-columns: 1fr; }
  .topbar { align-items: flex-start; flex-direction: column; gap: 12px; }
}