:root{--bg: #041018;--panel: #061620;--accent: #0ff6b8;--muted: #8aa}html,body,#root{height:100%;margin:0;background:var(--bg);color:#d9f6ee;font-family:system-ui,sans-serif}h1,h4{color:var(--accent)}button{background:#0b2b2a;color:var(--accent);border:1px solid #083;padding:6px 10px;border-radius:6px;cursor:pointer}button:disabled{opacity:.5}input,select{background:#071318;color:#cfe;border:1px solid #032;padding:6px;border-radius:4px}pre{color:#9ef9d1;display:inline-block;margin:0;white-space:pre-wrap}