.playground-layout {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
  display: grid;
  gap: 1rem;
}

@media (min-width: 960px) {
  .playground-layout {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto 1fr;
  }
  .pg-editor-wrap {
    grid-row: span 2;
  }
}

.pg-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.pg-editor-wrap {
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  overflow: hidden;
  background: var(--bg-elevated);
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  min-height: 16rem;
}

.line-nums {
  padding: 0.75rem 0.35rem;
  text-align: right;
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.85rem;
  line-height: 1.45;
  white-space: pre;
  color: var(--text-muted);
  background: var(--code-bg);
  user-select: none;
  overflow: hidden;
}

#editor {
  border: 0;
  resize: vertical;
  min-height: 16rem;
  padding: 0.75rem;
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.85rem;
  line-height: 1.45;
  background: transparent;
  color: var(--text);
  width: 100%;
  white-space: pre;
  overflow-x: auto;
}

#editor:focus {
  outline: none;
}

.pg-output {
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1rem;
  min-height: 8rem;
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.85rem;
  white-space: pre-wrap;
  background: var(--code-bg);
}

.pg-output.error {
  color: #b3261e;
}

.pg-examples select {
  padding: 0.4rem 0.6rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
}

.pg-status {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.pg-preview {
  display: block;
  width: 100%;
  max-width: 430px;
  height: 760px;
  margin-top: 1rem;
  border: 1px solid var(--border);
  border-radius: 1.75rem;
  background: #f2f2f7;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.pg-preview[hidden] {
  display: none;
}

.pg-input {
  margin-top: 0.75rem;
  font-size: 0.9rem;
}

.pg-input summary {
  cursor: pointer;
  color: var(--text-muted);
}

.pg-input textarea {
  display: block;
  width: 100%;
  margin-top: 0.5rem;
  padding: 0.6rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: var(--code-bg);
  color: var(--text);
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.85rem;
}