.lx-root{--lx-white:var(--white,#fff);--lx-oat:var(--oat,#f5f3f1);--lx-oat-deep:var(--oat-deep,#e9e7e5);--lx-border:var(--border,#e4e4e4);--lx-ink:var(--ink,#000);--lx-ink-75:var(--ink-75,#000000bf);--lx-ink-60:var(--ink-60,#0009);--lx-ink-40:var(--ink-40,#0006);--lx-ink-30:var(--ink-30,#0000004d);--lx-ink-25:var(--ink-25,#00000040);--lx-green:var(--green,#29cc57);--lx-green-ink:var(--green-ink,#043013);--lx-green-tint:var(--green-tint,#29cc571a);--lx-green-ring:var(--green-ring,#29cc5759);--lx-correct:var(--correct,#2563eb);--lx-correct-tint:var(--correct-tint,#2563eb1a);--lx-wrong-border:var(--wrong-border,#ffad99);--lx-wrong-tint:var(--wrong-tint,#fff0eb);--lx-wrong-ink:var(--wrong-ink,#b23e24);--lx-sage-tint:var(--tint-sage,#e7eee2);--lx-sage-ink:var(--sage-ink,#4a6a3e);--lx-blue-tint:var(--tint-blue,#f0f8fa);--lx-r-tile:10px;--lx-r-chip:12px;--lx-r-card:17px;--lx-r-panel:20px;--lx-shadow-btn:var(--shadow-btn,0 4px 7px #0000000d);--lx-sans:var(--font-sans-clone,"DM Sans", sans-serif);--lx-serif:var(--font-serif-clone,"Source Serif 4", serif);--lx-fast:.14s;--lx-move:.22s;font-family:var(--lx-sans);color:var(--lx-ink);font-size:16px;line-height:24px}.lx-step{flex-direction:column;gap:18px;display:flex}.lx-teach{color:var(--lx-ink-60);font-size:16px;line-height:24px}.lx-prompt{font-size:20px;font-weight:500;line-height:28px}.lx-math-block{overscroll-behavior-inline:contain;-webkit-overflow-scrolling:touch;justify-content:center;max-width:100%;padding:6px 0;font-size:19px;display:flex;overflow:auto hidden}.lx-math-error{background:var(--lx-oat);border-radius:6px;padding:2px 6px;font-family:inherit}.lx-tile{border:1px solid var(--lx-border);border-radius:var(--lx-r-tile);background:var(--lx-white);min-width:44px;min-height:44px;box-shadow:var(--lx-shadow-btn);color:var(--lx-ink);cursor:pointer;transition:border-color var(--lx-fast) ease, box-shadow var(--lx-fast) ease, background var(--lx-fast) ease, transform var(--lx-fast) ease;justify-content:center;align-items:center;padding:8px 14px;font-family:inherit;font-size:16px;font-weight:500;display:inline-flex}.lx-tile:hover{border-color:var(--lx-ink-25)}.lx-tile:active{transform:scale(.97)}.lx-tile-active{border-color:var(--lx-green);box-shadow:0 0 0 2px var(--lx-green-ring)}.lx-tile-correct,.lx-tile-correct:hover{border-color:var(--lx-correct);background:var(--lx-correct-tint)}.lx-tile-wrong,.lx-tile-wrong:hover{border-color:var(--lx-wrong-border);background:var(--lx-wrong-tint);animation:.24s lx-shake}.lx-tile-done{cursor:default}.lx-tile:disabled{cursor:default;opacity:.55;box-shadow:none}.lx-tutor{border-radius:var(--lx-r-card);background:var(--lx-oat);animation:lx-rise var(--lx-move) ease;align-items:flex-start;gap:12px;padding:14px 16px;display:flex}.lx-tutor-wrong{background:var(--lx-wrong-tint)}.lx-tutor-success{background:var(--lx-correct-tint)}.lx-tutor-hint{background:var(--lx-blue-tint)}.lx-tutor-mark{flex:none;margin-top:2px}.lx-tutor-name{color:var(--lx-ink,#000);margin-bottom:1px;font-size:16px;font-weight:700;line-height:22px}.lx-tutor-verdict{color:var(--lx-correct-ink,#2563eb);align-items:center;gap:5px;margin-left:10px;font-weight:700;display:inline-flex}.lx-tutor-verdict svg{flex:none}.lx-tutor-text{color:var(--lx-ink-75);font-size:15px;line-height:22px}.lx-tutor-wrong .lx-tutor-text strong{color:var(--lx-wrong-ink)}.lx-btn{background:var(--lx-green);min-height:48px;color:var(--lx-green-ink);cursor:pointer;box-shadow:var(--lx-shadow-btn);transition:filter var(--lx-fast) ease, transform var(--lx-fast) ease;border:none;border-radius:9999px;justify-content:center;align-items:center;padding:12px 24px;font-family:inherit;font-size:17px;font-weight:500;display:inline-flex}.lx-btn:hover{filter:brightness(.95)}.lx-btn:active{transform:scale(.98)}.lx-btn:disabled{background:var(--lx-oat-deep);color:var(--lx-ink-40);cursor:default}.lx-btn-quiet{background:var(--lx-white);color:var(--lx-ink-60);border:1px solid var(--lx-border)}.lx-btn-quiet:hover{filter:none;border-color:var(--lx-ink-25)}.lx-hint-row{justify-content:flex-end;display:flex}.lx-hint-btn{min-height:44px;color:var(--lx-ink-40);cursor:pointer;background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;padding:6px 8px;font-family:inherit;font-size:14px;display:inline-flex}.lx-hint-btn:hover{color:var(--lx-ink-60);background:var(--lx-oat)}@keyframes lx-shake{0%,to{transform:translate(0)}25%{transform:translate(-4px)}75%{transform:translate(4px)}}@keyframes lx-rise{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes lx-pop{0%{transform:scale(1)}50%{transform:scale(1.06)}to{transform:scale(1)}}.lx-pop{animation:.24s lx-pop}@media (prefers-reduced-motion:reduce){.lx-root *,.lx-root :before,.lx-root :after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}@media (max-width:480px){.lx-math-block{background:linear-gradient(90deg, var(--lx-white) 30%, transparent) left center, linear-gradient(270deg, var(--lx-white) 30%, transparent) right center, linear-gradient(90deg, var(--lx-ink-25), transparent) left center, linear-gradient(270deg, var(--lx-ink-25), transparent) right center;scrollbar-color:var(--lx-ink-25) transparent;scrollbar-width:thin;background-repeat:no-repeat;background-size:24px 100%,24px 100%,10px 100%,10px 100%;background-attachment:local,local,scroll,scroll;justify-content:safe center;font-size:17px}}
.lx-mia-static{flex:none;display:inline-block;position:relative}.lx-mia-static>img{image-rendering:auto;pointer-events:none;-webkit-user-select:none;user-select:none;max-width:none;display:block;position:absolute}