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.app-bar-left{display:contents}.app-bar.app-bar--teacher.is-compact .app-bar-brand{grid-area:1/1}.app-bar.app-bar--teacher.is-compact .app-bar-menu-toggle{grid-area:1/2}.app-bar.app-bar--teacher.is-compact .app-bar-user{grid-area:1/3;justify-self:end;padding:0}.app-bar.app-bar--teacher.is-compact .user-menu__trigger{block-size:44px;inline-size:44px;padding:4px}.app-bar.app-bar--teacher.is-compact .user-menu__name,.app-bar.app-bar--teacher.is-compact .user-menu__chevron,.app-bar.app-bar--teacher.is-compact .tch-search__btn>span{display:none}.app-bar.app-bar--teacher.is-compact .tch-search__btn{justify-content:center;inline-size:36px;padding:0}.app-bar.app-bar--teacher.is-compact .tch-search{position:static}.app-bar.app-bar--teacher.is-compact .tch-search__panel{inline-size:auto;inset-block-start:calc(100% + 6px);inset-inline:12px}.app-bar.app-bar--teacher.is-compact .tch-scope{flex-wrap:wrap;grid-area:2/1/auto/-1;inline-size:100%}.app-bar.app-bar--teacher.is-compact 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.app-bar-menu-toggle span{transform-origin:50%;block-size:2px;inline-size:19px;transition:transform var(--sp-dur) var(--sp-ease), opacity var(--sp-dur) ease;background:currentColor;border-radius:999px;display:block}.app-bar.is-compact .app-bar-menu-toggle[aria-expanded=true] span:first-child{transform:translateY(6px)rotate(45deg)}.app-bar.is-compact .app-bar-menu-toggle[aria-expanded=true] span:nth-child(2){opacity:0}.app-bar.is-compact .app-bar-menu-toggle[aria-expanded=true] span:nth-child(3){transform:translateY(-6px)rotate(-45deg)}.app-bar.is-compact .app-bar-menu-toggle:focus-visible{box-shadow:var(--sp-ring), var(--sp-shadow-sm);outline:none}.app-bar--learner.is-compact{grid-template-columns:auto auto minmax(0,1fr)}.app-bar--learner.is-compact .app-bar-user{justify-self:end}.app-bar.is-compact .app-bar-menu-backdrop{inset:var(--mapping-app-bar-height,73px) 0 0;z-index:1;opacity:0;visibility:hidden;pointer-events:none;transition:opacity var(--sp-dur) ease, visibility var(--sp-dur);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#0d113042;border:0;display:block;position:fixed}.app-bar.is-compact .app-bar-menu-backdrop.is-open{opacity:1;visibility:visible;pointer-events:auto}.app-bar.is-compact .app-bar-menu{inset-block-start:calc(var(--mapping-app-bar-height,73px) + 10px);inset-inline:var(--sp-gutter);z-index:4;inline-size:min(360px, calc(100vw - (var(--sp-gutter) * 2)));border:1px solid var(--sp-border-strong);background:var(--sp-surface);box-shadow:var(--sp-shadow-lg);opacity:0;visibility:hidden;pointer-events:none;transform-origin:top;transition:opacity var(--sp-dur) ease, transform var(--sp-dur) var(--sp-ease), visibility var(--sp-dur);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-radius:22px;grid-column:1/-1;margin-inline:auto;padding:10px;display:block;position:fixed;transform:translateY(-10px)scale(.98)}.app-bar.is-compact .app-bar-menu.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)scale(1)}.app-bar.is-compact .app-bar-menu .learner-app-nav,.app-bar.is-compact .app-bar-menu .teacher-app-nav{background:0 0;border:0;border-radius:16px;gap:6px;inline-size:100%;padding:4px;display:grid}.app-bar.is-compact .app-bar-menu .learner-app-nav button,.app-bar.is-compact .app-bar-menu .teacher-app-nav button{text-align:start;border-radius:13px;justify-content:flex-start;min-block-size:48px;inline-size:100%;padding-inline:16px}.app-bar.is-compact .app-bar-menu .learner-app-nav span,.app-bar.is-compact .app-bar-menu .teacher-app-nav span{display:inline}@media (width<=899px){.app-bar{padding-inline:var(--sp-gutter);gap:var(--sp-3)}.app-bar-brand{min-width:0}.step-label,.app-bar-user .user-sub{display:none}.sp-panel{padding:var(--sp-6)}.sd-wrap,.tv-wrap,.mt-wrap{padding-inline:var(--sp-gutter)}}@media 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7px}.app-bar-left .yuvi-language-switcher>span{display:none}.app-bar-left .yuvi-language-switcher select{max-inline-size:58px;font-size:11px}.app-bar-left .yuvi-theme-switcher{min-inline-size:42px;padding-inline:2px}.options-grid{grid-template-columns:1fr!important}.option-btn{min-block-size:52px}.nav-arrow{width:44px;height:44px}.sp-card{padding:var(--sp-5)}.sp-panel{padding:var(--sp-5);border-radius:var(--sp-radius-lg)}.sp-section-header{gap:var(--sp-2);flex-direction:column}.sd-wrap,.tv-wrap,.mt-wrap{padding-block:var(--sp-6) var(--sp-10)}.tv-tabs,.mt-roles{-webkit-overflow-scrolling:touch;scrollbar-width:none;max-inline-size:100%;display:flex;overflow-x:auto}.tv-tabs::-webkit-scrollbar{display:none}.mt-roles::-webkit-scrollbar{display:none}.tv-tab,.mt-role{white-space:nowrap}.tv-stat__value{font-size:var(--sp-fs-2xl)}}@media (width>=1200px){:root{--sp-container:1200px}.intro-scene{max-width:1080px}.chat-side{height:clamp(400px,100dvh - 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