:root{color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#070b14;color:#e5e7eb}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 20% 0%,rgba(56,189,248,.12),transparent 35%),radial-gradient(circle at 80% 20%,rgba(192,132,252,.12),transparent 32%),#070b14}#app{display:grid;grid-template-rows:minmax(0,1fr) auto auto;min-height:100vh;gap:8px;padding:10px}canvas{width:100%;height:calc(100vh - 104px);max-height:900px;background:#070b14;border:1px solid rgba(148,163,184,.15);border-radius:16px;box-shadow:0 20px 80px #00000059}#toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px}button,input{border:1px solid rgba(148,163,184,.25);background:#111827;color:#e5e7eb;border-radius:10px;padding:8px 10px;font-weight:650}button{cursor:pointer}button:hover{background:#1f2937}label{display:inline-flex;align-items:center;gap:6px;color:#cbd5e1;font-size:13px}input{width:72px;font-family:Consolas,monospace}#status{margin:0;color:#94a3b8;font-size:13px;min-height:18px}