/* Stable controls: visual changes never reveal a tone or a silent-check onset. */
.test-panel .respond-buttons button,.test-panel .respond-buttons button:disabled,
.practice-layout .respond-buttons button,.practice-layout .respond-buttons button:disabled{
  opacity:1;animation:none;transition:none;min-height:64px;min-width:175px;
}
.test-panel .respond-buttons button:active,.practice-layout .respond-buttons button:active{transform:translateY(1px)}
.test-panel .listening-orb,.practice-layout .listening-orb{animation:none!important}
.test-panel .test-status{min-height:3em;animation:none;transition:none}
.test-panel .respond-buttons{min-height:76px}
.test-panel button:focus-visible{outline:3px solid #3d3d3d;outline-offset:5px}
@media(max-width:600px){.test-panel .respond-buttons{display:grid;grid-template-columns:1fr}.test-panel .respond-buttons button{width:100%}.test-wrap .test-panel{padding:28px 20px}.test-wrap .test-panel h2{font-size:30px}}