.playground .page-header{margin-bottom:18px}.playground__language-bar{display:flex;gap:6px;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin}.playground__language{display:inline-flex;align-items:center;gap:7px;flex:0 0 auto;padding:8px 11px;border:1px solid var(--teb-hairline);border-radius:8px;background:var(--teb-surface);color:var(--teb-ink-muted);cursor:pointer;font-size:12px;font-weight:600;min-height:auto;min-width:auto;margin:0}.playground__language:hover{border-color:var(--teb-primary);color:var(--teb-ink)}.playground__language.is-active{background:var(--teb-primary-tint);border-color:var(--teb-primary);color:var(--teb-primary-ink)}.playground__language-short{font-family:var(--teb-font-mono);font-size:10px;letter-spacing:.04em}.playground__toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:14px 0 10px}.playground__runtime,.playground__actions{display:flex;align-items:center;gap:8px}.playground__runtime{color:var(--teb-ink-muted);font-size:12px}.playground__runtime svg{color:var(--teb-primary)}.playground__version{color:var(--teb-ink-faint);font-family:var(--teb-font-mono);font-size:11px}.playground__button{display:inline-flex;align-items:center;gap:6px;border-radius:7px;padding:8px 11px;font-size:12px;font-weight:600;cursor:pointer;min-height:auto;min-width:auto;margin:0}.playground__button:disabled{opacity:.55;cursor:wait}.playground__button--quiet{color:var(--teb-ink-muted);background:var(--teb-surface);border:1px solid var(--teb-hairline)}.playground__button--quiet:hover{color:var(--teb-ink);border-color:var(--teb-primary)}.playground__button--primary{color:#fff;background:var(--teb-primary);border:1px solid var(--teb-primary)}.playground__button--primary:hover{background:var(--teb-primary-hover)}.playground__notice{display:flex;align-items:flex-start;gap:8px;padding:10px 12px;margin-bottom:10px;border:1px solid var(--teb-primary-tint2);border-radius:8px;background:var(--teb-primary-tint);color:var(--teb-primary-ink);font-size:12px;line-height:1.45}.playground__workspace{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;min-height:540px}.playground__panel{display:flex;flex-direction:column;min-width:0;overflow:hidden;background:var(--teb-surface);border:1px solid var(--teb-hairline);border-radius:12px;box-shadow:var(--teb-shadow-card)}.playground__panel-header{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:42px;padding:0 13px;border-bottom:1px solid var(--teb-hairline);color:var(--teb-ink-muted);font-size:12px;font-weight:600}.playground__filename,.playground__stats{font-family:var(--teb-font-mono)}.playground__filename{color:var(--teb-ink)}.playground__stats{color:var(--teb-ink-faint);font-size:10px;font-weight:400}.playground__editor{flex:1;width:100%;min-height:496px;resize:none;padding:16px;border:none;outline:none;background:#17171b;color:#f2f2f0;font-family:var(--teb-font-mono);font-size:13px;line-height:1.6;-moz-tab-size:2;tab-size:2}.playground__editor:focus{box-shadow:inset 0 0 0 2px var(--teb-primary)}.playground__output{flex:1;margin:0;padding:16px;overflow:auto;white-space:pre-wrap;color:var(--teb-ink);font:13px/1.6 var(--teb-font-mono)}.playground__output.is-error{color:var(--teb-error)}.playground__preview{flex:1;width:100%;min-height:496px;border:none;background:#fff}.playground__status{font-family:var(--teb-font-mono);font-size:10px;text-transform:uppercase;letter-spacing:.06em;color:var(--teb-ink-faint)}.playground__status--running{color:var(--teb-warning-ink, var(--teb-warning))}.playground__status--success{color:var(--teb-success-ink, var(--teb-success))}.playground__status--error{color:var(--teb-error)}.playground__stdin-label{display:block;margin-top:14px;color:var(--teb-ink-muted);font-size:12px;font-weight:600}.playground__stdin-label small{color:var(--teb-ink-faint);font-weight:400}.playground__stdin{display:block;width:100%;min-height:72px;margin-top:7px;padding:10px;resize:vertical;border:1px solid var(--teb-hairline);border-radius:8px;outline:none;background:var(--teb-surface);color:var(--teb-ink);font:12px/1.5 var(--teb-font-mono)}.playground__stdin:focus{border-color:var(--teb-primary);box-shadow:var(--teb-ring)}@media (max-width: 800px){.playground__toolbar{align-items:flex-start;flex-direction:column}.playground__actions{width:100%}.playground__actions .playground__button--primary{margin-left:auto}.playground__workspace{grid-template-columns:1fr;min-height:auto}.playground__editor,.playground__preview{min-height:360px}}@media (max-width: 480px){.playground__actions{gap:5px}.playground__button{padding:8px 9px}.playground__runtime{font-size:11px}}