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(max-width:1023px){.lesson-map-fullscreen{--map-header-h:5.75rem;--map-step-gap:1.35rem;--map-step-block:6.4rem;--map-side-shift:clamp(2.6rem,11vw,3.6rem);height:100%;min-height:100dvh}.lesson-map-back{inset-inline-start:.9rem;inset-inline-end:auto;z-index:45;min-height:2.65rem;padding:.45rem .85rem;font-size:12.5px}.lesson-map-back,.lesson-map-chat-badge{position:fixed;top:max(.75rem,calc(env(safe-area-inset-top, 0px) + .35rem))}.lesson-map-chat-badge{inset-inline-start:auto;inset-inline-end:.9rem;z-index:44;align-items:flex-end;max-width:min(58vw,12.5rem);padding:.45rem .65rem;border-radius:.85rem;text-align:end}.lesson-map-chat-badge-kicker{font-size:9px;opacity:.8}.lesson-map-chat-badge-title{font-size:12px;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.lesson-map-chat-badge-sub{display:none}.lesson-map-progress{display:grid;position:fixed;z-index:43;top:max(3.55rem,calc(env(safe-area-inset-top, 0px) + 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