:root{color-scheme:dark;font-family:system-ui,sans-serif;background:#000;color:#ddd}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:#000}.app{min-height:100vh;display:grid;place-items:center;padding:1.25rem}.card{width:min(420px,100%);border:1px solid #333;border-radius:16px;padding:1.25rem;background:#0d0d0d}button,input,select{width:100%;margin:.35rem 0;padding:.85rem;border-radius:10px;border:1px solid #444;background:#1a1a1a;color:#eee;font-size:1rem}button.primary{border-color:#c9a66b;color:#c9a66b}.warn{color:#f0c36d;font-size:.9rem;line-height:1.4}.node-mode{position:fixed;inset:0;background:#000;color:#222;display:grid;place-items:center;text-align:center;padding:1rem}.node-mode .hint{color:#333;font-size:.85rem;max-width:20rem}.status{position:fixed;bottom:.5rem;left:0;right:0;text-align:center;font-size:.7rem;color:#2a2a2a}