body { font-family: sans-serif; max-width: 900px; margin: 2rem auto; padding: 0 1rem; }
h1 { font-size: 1.5rem; }
#status { color: #555; }
.note { color: #866; background: #fdf6e3; padding: 0.5rem 1rem; border-radius: 4px; font-size: 0.9rem; }
#latency { font-family: monospace; }
canvas { border: 1px solid #ccc; max-width: 100%; display: block; margin-top: 1rem; }