/* The playground uses the same surfaces and typography as the reference pages. */
body.playground-page { --content-max-width: 1440px; }
.playground-page main > .content { padding-right: 40px; }
.playground-page .page-toc { display: none; }
.pg-toolbar, .pg-actions, .pg-sim-controls { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.pg-toolbar label { font-size: 13px; color: var(--muted); }
.pg-select { min-width: 210px; max-width: 100%; padding: 8px 30px 8px 12px; font: inherit; font-size: 14px; color: var(--color-text); background: var(--color-bg); border: 1px solid var(--border-color); border-radius: 6px; }
#playground-root button { padding: 6px 12px; border: 1px solid var(--border-color); border-radius: 5px; font: inherit; font-size: 12px; background: var(--color-bg); color: var(--color-text); }
#playground-root button:hover:not(:disabled) { border-color: var(--theme-color); color: var(--theme-color); }
#playground-root button.pg-primary { background: var(--theme-color); color: var(--color-bg); border-color: var(--theme-color); font-weight: 600; }
#playground-root button:disabled { opacity: .5; cursor: default; }
.pg-description { font-size: 14px; }
.pg-related { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-bottom: 24px; font-size: 12px; }
.pg-related span { color: var(--muted); }
.pg-workspace, .pg-sim-columns { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; }
#playground-root [hidden] { display: none; }
.pg-panel { min-width: 0; overflow: hidden; border: 1px solid var(--border-color); border-radius: 8px; background: var(--color-bg); }
.pg-files, .pg-panel-title { min-height: 45px; display: flex; align-items: center; gap: 4px; padding: 6px 10px; background: var(--page-surface); border-bottom: 1px solid var(--border-color); font-size: 12px; font-weight: 600; }
.pg-files { flex-wrap: wrap; }
#playground-root .pg-files button { border-color: transparent; background: transparent; color: var(--muted); }
#playground-root .pg-files button[aria-pressed="true"] { background: var(--color-bg); border-color: var(--border-color); color: var(--theme-color); }
.pg-editor { display: block; width: 100%; height: 470px; resize: vertical; border: 0; border-radius: 0; padding: 18px; background: var(--codeblock-bg); color: var(--color-text); font: 13px/1.8 Consolas, "Cascadia Code", monospace; tab-size: 2; }
.pg-editor:focus-visible { outline-offset: -2px; }
.pg-actions { min-height: 60px; padding: 12px; border-top: 1px solid var(--border-color); }
.pg-status { color: var(--muted); font-size: 11px; }
.pg-preview { height: 340px; background: #fff; }
.pg-frame { width: 100%; height: 100%; display: block; border: 0; }
.pg-panel-title { justify-content: space-between; }
.pg-logs { height: 190px; overflow: auto; padding: 10px 14px; background: var(--codeblock-bg); }
.markdown-section .pg-log { padding: 7px 0; margin: 0; border: 0; border-radius: 0; white-space: pre-wrap; overflow-wrap: anywhere; font: 12px/1.6 Consolas, monospace; }
.pg-log-error { color: #b42336; }
:root[data-theme="dark"] .pg-log-error { color: #ffa3af; }
.markdown-section .pg-log-empty, .markdown-section .pg-hint, .markdown-section .pg-caption { color: var(--muted); font-size: 12px; }
.pg-sim-controls label { display: flex; gap: 8px; align-items: center; font-size: 13px; }
.markdown-section .pg-steps { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; margin: 24px 0 14px; }
.markdown-section .pg-steps li { margin: 0; padding: 10px; border-top: 2px solid var(--border-color); color: var(--muted); font-size: 12px; }
.markdown-section .pg-steps li.is-reached { border-color: var(--theme-color); color: var(--theme-color); }
.pg-explanation { min-height: 76px; padding: 14px 16px; border-radius: 6px; background: var(--brand-soft); font-size: 14px; }
.pg-sim-card { padding: 20px; }
.markdown-section .pg-sim-card h2 { margin: 0; padding: 0; border: 0; font-size: 18px; }
.markdown-section .pg-initial-html { padding: 12px; margin: 0; min-height: 130px; white-space: pre-wrap; overflow-wrap: anywhere; font: 12px/1.7 Consolas, monospace; }
.pg-sim-view { min-height: 215px; padding: 16px; border: 1px dashed var(--border-color); border-radius: 6px; }
.markdown-section .pg-sim-view h3 { margin-top: 0; font-size: 18px; }
.pg-waiting { color: var(--muted); }
.article-playground { padding: 12px 16px; border: 1px solid var(--border-color); border-radius: 6px; background: var(--page-surface); font-size: 13px; }
@media (max-width: 1100px) {
  .pg-workspace, .pg-sim-columns { grid-template-columns: minmax(0, 1fr); }
  .pg-editor { height: 350px; }
  .site-header nav .playground-link { display: none; }
}
@media (max-width: 768px) {
  .playground-page main > .content { padding-right: 0; }
  .pg-toolbar { align-items: stretch; flex-direction: column; }
  .pg-select { width: 100%; }
  .markdown-section .pg-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pg-sim-card { padding: 14px; }
  .pg-editor { font-size: 12px; padding: 12px; }
}