* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #111827;
  color: #f3f4f6;
}

.app {
  max-width: 980px;
  margin: 24px auto;
  padding: 0 16px;
  display: grid;
  gap: 16px;
}

.panel {
  background: #1f2937;
  border: 1px solid #374151;
  border-radius: 10px;
  padding: 16px;
}

.row {
  display: flex;
  gap: 12px;
  margin-top: 10px;
  flex-wrap: wrap;
}

button {
  border: 1px solid #4b5563;
  background: #0f172a;
  color: #f9fafb;
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
}

button:hover {
  background: #111827;
}

pre {
  margin: 0;
  white-space: pre-wrap;
  font-size: 13px;
  line-height: 1.5;
  color: #c7d2fe;
}

kbd {
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid #4b5563;
  background: #0b1020;
}