.reveal-block{display:flex;flex-direction:column;gap:.75rem}.reveal-block__prompt{font-size:1.05rem}.reveal-block__answer{animation:reveal-block-fade-in .3s ease-in}@keyframes reveal-block-fade-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.reveal-block__action{display:flex;align-items:center;gap:.5rem}.quick-check-block{display:flex;flex-direction:column;gap:.75rem}.quick-check-block__header{display:flex;align-items:center;gap:.4rem;line-height:1.2}.quick-check-block__options{display:flex;flex-direction:column;gap:.5rem}.quick-check-block__option{display:flex;align-items:center;justify-content:center;cursor:pointer;transition:box-shadow .15s ease,transform .15s ease;text-align:center;width:100%;max-width:100%;box-sizing:border-box;block-size:auto;margin:0;padding:.75rem 1rem!important;border:0;overflow:hidden;font-size:inherit;font-family:inherit}.quick-check-block__option-content{display:inline-flex;align-items:center;justify-content:center;gap:.45rem}.quick-check-block__option-icon{width:1.1rem;height:1.1rem;display:inline-flex;align-items:center;justify-content:center;visibility:hidden}.quick-check-block__option-icon--visible{visibility:visible}.quick-check-block__option:hover:not(:disabled){box-shadow:var(--elevate1);transform:translateY(-1px)}.quick-check-block__option:disabled{cursor:default}.quick-check-block__option--correct{border:2px solid var(--primary);background:var(--primary-container)!important;color:var(--on-primary-container)!important}.quick-check-block__option--incorrect{border:2px solid var(--error);background:var(--error-container)!important;color:var(--on-error-container)!important}.quick-check-block__explanation{display:flex;align-items:flex-start;gap:.5rem;animation:quick-check-fade-in .3s ease-in}@keyframes quick-check-fade-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.learn-phase-container{display:flex;flex-direction:column;gap:1.5rem}.learn-phase-container__main{display:flex;gap:1.5rem;align-items:flex-start}.learn-phase-container__blocks{display:flex;flex-direction:column;gap:1.25rem;flex:1 1;min-width:0}.learn-phase-container__footer-action{display:flex;justify-content:flex-end;margin-top:.25rem}.learn-phase-container__after-blocks{display:flex;flex-direction:column;gap:1.25rem}.learn-phase-container__sidebar{display:none;flex-direction:column;gap:1rem;width:17.5rem;flex-shrink:0}.learn-phase-container__sidebar-content{display:flex;flex-direction:column;gap:1rem}.learn-phase-container__inline-heading,.learn-phase-container__sidebar-heading{margin:0;font-size:1.1rem;line-height:1.3}.learn-phase-container__inline-tips{display:flex;flex-direction:column;gap:1rem;margin-top:.5rem}@media (min-width:900px){.learn-phase-container__sidebar{display:flex;position:-webkit-sticky;position:sticky;top:0;align-self:flex-start;max-height:none;overflow-y:visible}.learn-phase-container__inline-tips{display:none}}