@media(max-width:640px){.header nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));overflow:visible;gap:0}.header nav button{font-size:14px;padding:10px 2px;min-width:0}.bank:empty{min-height:0;margin:0}.lesson-card .tools{margin-bottom:10px}.word-big{overflow-wrap:anywhere}}
.telegram body{padding-top:var(--tg-inset-top,0px);padding-bottom:var(--tg-inset-bottom,0px);padding-left:var(--tg-inset-left,0px);padding-right:var(--tg-inset-right,0px)}
.lesson-head{flex-wrap:wrap}.lesson-head .grow{min-width:0}.lesson-head h2{overflow-wrap:anywhere}.tools{flex-wrap:wrap}.settings audio{max-width:100%}input[type=checkbox]{width:auto;min-height:20px;vertical-align:middle}.header nav button{white-space:normal}