:root{--bg:var(--tg-theme-bg-color,#fff);--bg-secondary:var(--tg-theme-secondary-bg-color,#f2f3f5);--text:var(--tg-theme-text-color,#14171f);--text-muted:var(--tg-theme-hint-color,#7d8794);--link:var(--tg-theme-link-color,#2c6fd1);--accent:var(--tg-theme-button-color,#2c6fd1);--accent-text:var(--tg-theme-button-text-color,#fff);--brand:#f4a300;--success:#37c26b;--success-soft:#e6f8ed;--danger:#ea4b5a;--danger-soft:#fdecee;--streak:#ff8a2b;--gem:#45c2f0;--radius:16px;--radius-sm:12px;--shadow:0 2px 0 #0000001f;--safe-top:calc(var(--tg-viewport-safe-area-inset-top,env(safe-area-inset-top,0px)) + var(--tg-viewport-content-safe-area-inset-top,0px));--safe-bottom:calc(var(--tg-viewport-safe-area-inset-bottom,env(safe-area-inset-bottom,0px)) + var(--tg-viewport-content-safe-area-inset-bottom,0px));--safe-left:var(--tg-viewport-safe-area-inset-left,env(safe-area-inset-left,0px));--safe-right:var(--tg-viewport-safe-area-inset-right,env(safe-area-inset-right,0px));--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--success-soft:#16301f;--danger-soft:#351b20}}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);overscroll-behavior-y:none;-webkit-user-select:none;user-select:none;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,Roboto,system-ui,sans-serif;font-size:16px;line-height:1.4}button{font:inherit;color:inherit;cursor:pointer}.app{max-width:560px;height:100%;padding-top:var(--safe-top);padding-left:var(--safe-left);padding-right:var(--safe-right);flex-direction:column;margin:0 auto;display:flex;position:relative}.scroll{-webkit-overflow-scrolling:touch;padding:12px 16px calc(96px + var(--safe-bottom));flex:1;overflow-y:auto}.dock{padding:12px 16px calc(12px + var(--safe-bottom));background:linear-gradient(to top, var(--bg) 62%, transparent);position:sticky;bottom:0}.btn{border-radius:var(--radius);background:var(--accent);width:100%;min-height:54px;color:var(--accent-text);letter-spacing:.01em;box-shadow:var(--shadow);border:none;justify-content:center;align-items:center;gap:8px;padding:0 20px;font-size:17px;font-weight:700;transition:transform 80ms,opacity .15s;display:flex}.btn:active:not(:disabled){box-shadow:none;transform:translateY(2px)}.btn:disabled{opacity:.4;box-shadow:none}.btn--success{background:var(--success);color:#fff}.btn--danger{background:var(--danger);color:#fff}.btn--ghost{color:var(--text-muted);box-shadow:none;background:0 0;min-height:44px;font-weight:600}.btn--small{width:auto;min-height:40px;padding:0 16px;font-size:15px}.card{background:var(--bg-secondary);border-radius:var(--radius);margin-bottom:12px;padding:16px}.card--flat{padding:12px 14px}.row{align-items:center;gap:10px;display:flex}.row--between{justify-content:space-between}.stack{flex-direction:column;gap:8px;display:flex}.muted{color:var(--text-muted);font-size:14px}.h1{letter-spacing:-.02em;margin:8px 0;font-size:26px;font-weight:800}.h2{margin:16px 0 8px;font-size:19px;font-weight:700}.topbar{align-items:center;gap:6px;padding:10px 16px 4px;display:flex}.chip{background:var(--bg-secondary);border:none;border-radius:999px;align-items:center;gap:5px;padding:6px 10px;font-size:14px;font-weight:700;display:inline-flex}.chip--streak{color:var(--streak)}.chip--gem{color:var(--gem)}.chip--xp{color:var(--brand)}.bar{background:var(--bg-secondary);border-radius:999px;height:12px;overflow:hidden}.bar__fill{background:var(--success);border-radius:999px;height:100%;transition:width .35s cubic-bezier(.2,.8,.2,1)}.bar--thin{height:8px}.ring{--size:92px;width:var(--size);height:var(--size);background:conic-gradient(var(--success) calc(var(--p) * 1%), var(--bg-secondary) 0);border-radius:50%;place-items:center;display:grid;position:relative}.ring:after{content:"";background:var(--bg);border-radius:50%;position:absolute;inset:8px}.ring__label{z-index:1;text-align:center;font-weight:800;line-height:1.1;position:relative}.hero{align-items:center;gap:14px;padding:4px 0 12px;display:flex}.bubble{background:var(--bg-secondary);border-radius:var(--radius);flex:1;padding:12px 14px;font-size:15px;font-weight:600;animation:.25s cubic-bezier(.2,1.4,.4,1) pop;position:relative}.bubble:before{content:"";background:var(--bg-secondary);width:12px;height:12px;position:absolute;top:22px;left:-6px;transform:rotate(45deg)}@keyframes pop{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.session{flex-direction:column;height:100%;display:flex}.session__head{align-items:center;gap:10px;padding:10px 16px;display:flex}.session__body{flex:1;padding:8px 16px 24px;overflow-y:auto}.prompt{color:var(--text-muted);margin-bottom:12px;font-size:15px;font-weight:700}.question{letter-spacing:-.01em;word-break:break-word;margin-bottom:4px;font-size:30px;font-weight:800;line-height:1.25}.question--rtl{text-align:right;direction:rtl}.translit{color:var(--text-muted);margin-bottom:16px;font-size:16px;font-style:italic}.options{gap:10px;margin-top:20px;display:grid}.option{border:2px solid var(--bg-secondary);border-radius:var(--radius);text-align:left;background:0 0;border-bottom-width:4px;align-items:center;gap:10px;width:100%;min-height:58px;padding:12px 16px;font-size:17px;font-weight:600;transition:transform 80ms,background .15s,border-color .15s;display:flex}.option:active:not(:disabled){transform:translateY(2px)}.option--selected{border-color:var(--accent);background:color-mix(in srgb, var(--accent) 12%, transparent)}.option--correct{border-color:var(--success);background:var(--success-soft)}.option--wrong{border-color:var(--danger);background:var(--danger-soft)}.option__index{width:24px;height:24px;color:var(--text-muted);opacity:.5;border:1.5px solid;border-radius:6px;flex:none;place-items:center;font-size:12px;font-weight:700;display:grid}.tiles{border-radius:var(--radius-sm);background:var(--bg-secondary);flex-wrap:wrap;gap:8px;min-height:56px;margin-bottom:14px;padding:8px;display:flex}.tile{border:2px solid var(--bg-secondary);border-radius:var(--radius-sm);background:var(--bg);border-bottom-width:4px;padding:10px 14px;font-size:16px;font-weight:600}.tile:active{transform:translateY(2px)}.tile--used{opacity:.25;pointer-events:none}.input{border:2px solid var(--bg-secondary);border-radius:var(--radius);background:var(--bg);width:100%;min-height:56px;color:var(--text);outline:none;padding:14px 16px;font-size:18px;font-weight:600}.input:focus{border-color:var(--accent)}.pairs{grid-template-columns:1fr 1fr;gap:10px;margin-top:16px;display:grid}.context{border-radius:var(--radius-sm);background:var(--bg-secondary);margin-bottom:16px;padding:14px;font-size:17px;line-height:1.55}.context--rtl{text-align:right;direction:rtl}.verdict{padding:14px 16px calc(14px + var(--safe-bottom));border-radius:20px 20px 0 0;animation:.22s cubic-bezier(.2,.9,.3,1) slide-up;position:sticky;bottom:0}.verdict--ok{background:var(--success-soft)}.verdict--no{background:var(--danger-soft)}@keyframes slide-up{0%{transform:translateY(100%)}to{transform:translateY(0)}}.verdict__title{margin-bottom:4px;font-size:17px;font-weight:800}.verdict--ok .verdict__title{color:var(--success)}.verdict--no .verdict__title{color:var(--danger)}.session-card{border-radius:var(--radius);background:var(--bg-secondary);text-align:left;border:none;align-items:center;gap:12px;width:100%;margin-bottom:8px;padding:14px;transition:transform 80ms;display:flex}.session-card:active{transform:scale(.985)}.session-card--done{opacity:.45}.session-card__icon{background:var(--bg);border-radius:12px;flex:none;place-items:center;width:44px;height:44px;font-size:22px;display:grid}.reward{border-radius:var(--radius);background:var(--bg-secondary);text-align:center;place-items:center;gap:6px;padding:16px;display:grid}.reward__value{font-size:30px;font-weight:800}.medal{border-radius:var(--radius);background:var(--bg-secondary);align-items:center;gap:12px;margin-bottom:8px;padding:14px;display:flex}.medal__icon{border-radius:50%;flex:none;place-items:center;width:48px;height:48px;font-size:24px;display:grid}.confetti{pointer-events:none;z-index:50;position:fixed;inset:0;overflow:hidden}.confetti__piece{border-radius:2px;width:8px;height:14px;animation:linear forwards fall;position:absolute}@keyframes fall{0%{opacity:1;transform:translateY(-10vh)rotate(0)}to{opacity:.2;transform:translateY(110vh)rotate(720deg)}}.pill{background:var(--bg);border-radius:999px;align-items:center;gap:6px;padding:4px 10px;font-size:13px;font-weight:700;display:inline-flex}.grid-2{grid-template-columns:1fr 1fr;gap:10px;display:grid}.banner{border-radius:var(--radius-sm);background:var(--danger-soft);color:var(--danger);margin-bottom:10px;padding:10px 14px;font-size:14px;font-weight:600}.center{text-align:center;place-items:center;gap:12px;height:100%;padding:24px;display:grid}.lang-option{border:2px solid var(--bg-secondary);border-radius:var(--radius);text-align:left;background:0 0;align-items:center;gap:12px;width:100%;margin-bottom:10px;padding:14px;display:flex}.lang-option--on{border-color:var(--success);background:var(--success-soft)}.lang-option__flag{font-size:30px}.check{color:var(--success);margin-left:auto;font-size:20px}.world{opacity:.16;pointer-events:none;z-index:0;background-position:50% 40%;background-size:cover;height:220px;position:absolute;top:0;left:0;right:0;-webkit-mask-image:linear-gradient(#000 0%,#0000 100%);mask-image:linear-gradient(#000 0%,#0000 100%)}.app>.scroll>:not(.world){z-index:1;position:relative}.advice{border-radius:var(--radius);background:var(--bg-secondary);gap:8px;margin-top:10px;padding:10px 12px;font-size:14px;line-height:1.5;display:flex}.advice__icon{opacity:.7;flex:none}.btn--stack{flex-direction:column;gap:2px;line-height:1.25}.btn__note{opacity:.85;font-size:13px;font-weight:600}.intro{text-align:center;flex-direction:column;justify-content:safe center;align-items:center;gap:14px;min-height:100%;padding:8px 0;display:flex}.intro__art{justify-content:center;align-items:center;min-height:140px;display:flex}.intro__img{object-fit:contain;border-radius:var(--radius);width:190px;height:190px}.intro__word{background:0 0;border:none;flex-direction:column;align-items:center;gap:2px;padding:0;font-size:34px;font-weight:800;line-height:1.15;display:flex}.intro__translit{color:var(--text-muted);font-size:15px;font-weight:500}.intro__ru{font-size:20px;font-weight:600}.intro__hint{border-radius:var(--radius-sm);background:var(--bg-secondary);max-width:420px;margin:0;padding:10px 14px;font-size:15px;line-height:1.35}.intro__example{border-radius:var(--radius-sm);border:1px solid var(--bg-secondary);width:100%;padding:12px 14px}.intro__example-text{font-size:17px;font-weight:600}.intro__example-translit,.intro__example-ru{color:var(--text-muted);font-size:14px}