:root { --bg:#151821; --panel:#242936; --panel2:#303747; --text:#f4f6f8; --muted:#aeb6c2; --accent:#ffd166; --border:rgba(255,255,255,.13); --ok:#8ce99a; --danger:#ff6b6b; }
*{box-sizing:border-box} body{margin:0;background:radial-gradient(circle at top,#293142,var(--bg));color:var(--text);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.tool-shell{padding:22px;max-width:1600px;margin:0 auto}.tool-header{display:flex;justify-content:space-between;gap:18px;align-items:start;margin-bottom:16px}.tool-header h1{margin:0 0 6px;font-size:28px}.tool-header p{margin:0;color:var(--muted);line-height:1.45}.tool-header code,.notice code{color:var(--accent)}.tool-header a{color:#222;background:var(--accent);padding:9px 12px;border-radius:10px;font-weight:700;text-decoration:none;white-space:nowrap}.tool-layout{display:grid;grid-template-columns:380px 1fr;gap:16px}.panel,.canvas-panel{background:rgba(36,41,54,.94);border:1px solid var(--border);border-radius:16px;padding:14px}.panel{display:grid;gap:12px;align-content:start}.panel label{display:grid;gap:5px;color:var(--muted);font-size:13px}.panel input,.panel select,.panel textarea{width:100%;border:1px solid var(--border);border-radius:9px;background:var(--panel2);color:var(--text);padding:9px;font:inherit}.grid-two{display:grid;grid-template-columns:1fr 1fr;gap:10px}.notice{border:1px solid rgba(255,209,102,.3);background:rgba(255,209,102,.08);border-radius:12px;padding:10px;color:var(--muted);font-size:12px;line-height:1.45}.source-row{display:flex;gap:8px;align-items:center}.source-row span{font-size:12px;color:var(--muted);line-height:1.3}.readout{background:#11151d;border:1px solid var(--border);border-radius:10px;padding:10px;color:var(--muted);font-size:13px;line-height:1.45}.panel h2{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:4px 0 -6px}.panel textarea{min-height:140px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px}.panel button{border:0;border-radius:10px;padding:10px;background:var(--accent);color:#222;font-weight:800;cursor:pointer}.panel button.secondary{background:var(--panel2);color:var(--text);border:1px solid var(--border);font-size:12px;padding:9px}.small{color:var(--muted);font-size:12px;line-height:1.45;margin:0}.small code{color:var(--accent)}.canvas-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px;color:var(--muted);font-size:13px}.canvas-toolbar label{display:flex;align-items:center;gap:6px;white-space:nowrap}.canvas-scroll{overflow:auto;max-height:80vh;background:#0d1016;border:1px solid var(--border);border-radius:12px;padding:12px}canvas{image-rendering:pixelated;background:#0d1016;cursor:crosshair}.error{color:var(--danger)}.ok{color:var(--ok)}@media(max-width:1000px){.tool-layout{grid-template-columns:1fr}.tool-header{display:grid}}