:root{color-scheme:dark}*{box-sizing:border-box}[hidden]{display:none!important}html,body{margin:0;min-height:100vh;background:#05070c;color:#f4f2ee;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}.piano__page{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.5rem;padding:4.5rem 1.5rem 2.5rem;text-align:center}.piano__title{margin:0;font-size:2rem;letter-spacing:.04em}.piano__hud{display:flex;align-items:center;gap:1rem}.piano__btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid rgba(255,255,255,.2);background:#ffffff0f;color:#f4f2ee;padding:.5rem .9rem;border-radius:.6rem;font-size:.9rem;cursor:pointer;transition:transform .1s ease,background .15s ease,opacity .15s ease}.piano__btn:hover:not(:disabled){background:#ffffff1f;transform:translateY(-1px)}.piano__btn:disabled{opacity:.35;cursor:default}.piano__octaveLabel{font-variant-numeric:tabular-nums;opacity:.75;min-width:6rem}.piano__soundSelect,.piano__checkbox{display:flex;align-items:center;gap:.5rem;font-size:.9rem;opacity:.85}.piano__soundSelect select{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid rgba(255,255,255,.2);background:#ffffff0f;color:#f4f2ee;padding:.35rem .6rem;border-radius:.5rem;font-size:.9rem}.piano__checkbox input{accent-color:#38bdf8}.piano__keys{position:relative;width:min(95vw,44rem);height:11rem;-webkit-user-select:none;user-select:none;touch-action:none}.piano__whiteKeys{display:flex;width:100%;height:100%}.piano__key{display:flex;align-items:flex-end;justify-content:center;padding-bottom:.5rem;border:1px solid #0c0f16;cursor:pointer;transition:background .06s ease}.piano__key--white{flex:1;background:#f4f2ee;border-radius:0 0 .4rem .4rem}.piano__key--white-active{background:#38bdf8}.piano__key--black{position:absolute;top:0;height:60%;background:#14161f;border-radius:0 0 .3rem .3rem;z-index:2}.piano__key--black-active{background:#0ea5c4}.piano__keyBinding{display:none;font-size:.7rem;font-weight:700;color:#05070c;pointer-events:none}.piano__keys--labels .piano__keyBinding{display:block}.piano__key--black .piano__keyBinding{color:#f4f2ee}