#experimental-animation{position:fixed;z-index:90;left:50%;transform:translateX(-50%);bottom:76px;width:min(270px,calc(100vw - 16px));box-sizing:border-box;padding:4px 6px;background:rgba(23,38,34,.97);color:#edf3ee;border:1px solid #42635a;border-radius:7px;font:12px system-ui;box-shadow:0 4px 16px #0005}
#experimental-animation[hidden]{display:none}
#experimental-animation header{display:flex;align-items:center;margin:0 0 2px;padding:0;min-height:0;height:auto;border:0;background:none;position:static}
#experimental-animation strong{flex:1;min-width:0;font-size:11px;font-weight:550;line-height:15px;cursor:grab;user-select:none}
/* No close affordance: normal lesson/module changes still own teardown. */
#experimental-animation [data-a=close]{display:none}
#experimental-animation .motion-controls{display:flex;align-items:center;gap:5px}
#experimental-animation [data-a=play]{box-sizing:border-box;display:grid;place-items:center;flex:0 0 24px;width:24px;min-width:24px;height:24px;min-height:24px;padding:0;border:1px solid #52756e;border-radius:4px;background:#29433f;color:#edf3ee;cursor:pointer}
#experimental-animation [data-a=play] svg{width:14px;height:14px}
#experimental-animation input[type=range]{-webkit-appearance:none;appearance:none;flex:1;min-width:40px;width:100px;height:20px;min-height:20px;margin:0;padding:0;border:0;border-radius:0;background:transparent;accent-color:#a8ddd0;cursor:pointer}
#experimental-animation input[type=range]::-webkit-slider-runnable-track{height:2px;border-radius:2px;background:#688e80}
#experimental-animation input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:9px;height:9px;margin-top:-3.5px;border:0;border-radius:50%;background:#b9e4d3}
#experimental-animation input[type=range]::-moz-range-track{height:2px;border:0;border-radius:2px;background:#688e80}
#experimental-animation input[type=range]::-moz-range-progress{height:2px;border-radius:2px;background:#a8ddd0}
#experimental-animation input[type=range]::-moz-range-thumb{width:9px;height:9px;border:0;border-radius:50%;background:#b9e4d3}
#experimental-animation output{font-size:10px;min-width:29px;text-align:right;font-variant-numeric:tabular-nums}
#experimental-animation small{display:block;font-size:10px;line-height:1.4;color:#b9c9c1;margin-top:3px}
#experimental-animation small[hidden]{display:none}
#experimental-animation :disabled{opacity:.45}
#experimental-animation :focus-visible{outline:1px solid #b9e4d3;outline-offset:2px}
@media(max-width:480px){#experimental-animation{bottom:70px}}