:root {
  --pg-bg: #f4efe5;
  --pg-paper: #fffdf7;
  --pg-paper-warm: #fbf5ea;
  --pg-text: #1f1d19;
  --pg-muted: #70695f;
  --pg-border: #2a2823;
  --pg-soft-border: #cfc5b5;
  --pg-link: #5c4a2f;
  --pg-shadow-hard: 4px 4px 0 #2a2823;
  --pg-radius-window: 2px;
  --pg-font-ui: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --pg-font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

.playground-child {
  font-family: var(--pg-font-ui);
}

.playground-chrome {
  position: sticky;
  top: 10px;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: min(1160px, calc(100% - 28px));
  min-height: 32px;
  margin: 10px auto 18px;
  border: 2px solid var(--pg-border);
  border-radius: var(--pg-radius-window);
  background: rgba(251, 245, 234, .94);
  box-shadow: var(--pg-shadow-hard);
  color: var(--pg-text);
  font-family: var(--pg-font-mono);
  font-size: .78rem;
  line-height: 1;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.playground-chrome a,
.playground-chrome span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 7px 10px;
  color: inherit;
  text-decoration: none;
}

.playground-chrome a {
  border-right: 2px solid var(--pg-border);
  font-weight: 800;
}

.playground-chrome a:hover,
.playground-chrome a:focus-visible {
  background: var(--pg-paper);
}

.playground-chrome a:focus-visible {
  outline: 3px solid #8c6b35;
  outline-offset: 3px;
}

.playground-chrome span {
  min-width: 0;
  overflow: hidden;
  color: var(--pg-muted);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.playground-chrome::after {
  content: "□ ×";
  flex: 0 0 auto;
  padding: 0 10px;
  color: var(--pg-muted);
  letter-spacing: .08em;
}

.playground-window-panel {
  border: 2px solid var(--pg-border);
  border-radius: var(--pg-radius-window);
  background: var(--pg-paper);
  box-shadow: var(--pg-shadow-hard);
}

.playground-window-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 30px;
  padding: 6px 9px;
  border-bottom: 2px solid var(--pg-border);
  background: var(--pg-paper-warm);
  color: var(--pg-muted);
  font-family: var(--pg-font-mono);
  font-size: .74rem;
}

@media (max-width: 560px) {
  .playground-chrome {
    top: 8px;
    width: min(100% - 20px, 1160px);
    margin-bottom: 14px;
  }
}