.fix-layout{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media(max-width:900px){.fix-layout{grid-template-columns:1fr}}.panel-card{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:16px}.code-editor{min-height:320px;width:100%;padding:14px;background:#0d1117;border:1px solid var(--border);border-radius:8px;color:#adbac7;font-family:JetBrains Mono,monospace;font-size:12px;line-height:1.7;resize:vertical;outline:none;margin-top:14px}.code-editor:focus{border-color:var(--accent)}.placeholder-msg{color:var(--muted);font-size:13px;text-align:center;padding:40px}.header-actions{display:flex;gap:6px}