.learner-app,.learner-dialog{--bento-radius:24px}body:has(:is(.learner-app,.learner-dialog)){--bento-radius:24px}.learner-app,.learner-dialog{--button-radius:var(--bento-radius);--app-button-radius:var(--button-radius);--flashcard-radius:var(--bento-radius);--app-track-height:clamp(16px, 1rem, 20px);--app-control-depth:var(--control-depth,4px);--app-outline:2px;--app-heading-size:2.5rem;--app-icon-secondary:24px;--app-icon-action:28px;--app-icon-navigation:32px;--app-select-inset:16px;--app-bg:#f7f6f0;--app-surface:#fff;--app-ink:#202820;--app-muted:#586258;--app-border:#d5d8d3;--app-control-border:#87917f;--app-accent:var(--brand-green,#19804b);--app-accent-hover:var(--brand-green-deep,#0d5731);--app-accent-edge:var(--brand-green-deep,#0d5731);--app-sage:#dcf4cf;--app-lime:#d9f6ac;--app-blue:#cfeeff;--app-blue-ink:#145c81;--app-yellow:#ffedaa;--app-lilac:#e7d9ff;--app-rose:#ffd7cb;color:var(--app-ink);background:var(--app-bg);font-family:var(--font-body), sans-serif;font-size:1rem;line-height:1.5}.learner-app{min-height:100dvh}:is(html:has(.learner-onboarding-root),html:has([data-session-focus])){scrollbar-gutter:auto}.learner-app *,.learner-dialog *{box-sizing:border-box}.learner-app h1,.learner-app h2,.learner-app h3,.learner-dialog h2{color:var(--app-ink);font-family:var(--font-display), sans-serif;letter-spacing:-.025em;text-wrap:balance;font-weight:700}.learner-app svg{flex-shrink:0}.learner-content{min-width:0}.learner-provider-status{color:var(--app-muted);background:var(--app-bg);border-bottom:1px solid var(--app-border);justify-content:center;align-items:center;gap:14px;padding:9px 20px;font-size:.9rem;display:flex}.learner-provider-status p{margin:0}.learner-provider-status .learner-link{flex-shrink:0;min-height:36px;font-size:.9rem}.learner-page{max-width:1240px;margin:0 auto;padding:44px 44px 60px}.learner-heading{font-size:var(--app-heading-size);margin:0;font-weight:900;line-height:1.15}.learner-app h1.learner-heading{font-size:var(--app-heading-size);font-weight:900}.learner-page h2{font-size:1.6rem;font-weight:700;line-height:1.3}.learner-page h3{font-size:1.18rem;font-weight:700;line-height:1.35}.learner-muted{color:var(--app-muted)}.learner-page-header{justify-content:space-between;align-items:center;gap:20px;margin-bottom:34px;display:flex}.learner-button,.learner-button-secondary,.learner-link{border-radius:var(--button-radius,16px);min-height:54px;transition:background-color var(--motion-fast) var(--ease-out), color var(--motion-fast) var(--ease-out), border-color var(--motion-fast) var(--ease-out), transform var(--motion-fast) var(--ease-out), box-shadow var(--motion-fast) var(--ease-out);justify-content:center;align-items:center;gap:9px;padding:12px 22px;font-size:1rem;font-weight:700;line-height:1.35;display:inline-flex}.learner-button{color:var(--app-surface);background:var(--app-accent);border:var(--app-outline) solid var(--app-accent);--button-edge:var(--app-accent-edge);box-shadow:0 var(--app-control-depth) 0 var(--button-edge)}.learner-button:hover:not(:disabled):not([aria-disabled=true]){border-color:var(--app-accent-hover)}.learner-button:active:not(:disabled):not([aria-disabled=true]),.learner-button-secondary:active:not(:disabled):not([aria-disabled=true]){transform:translateY(calc(var(--app-control-depth) - 1px));box-shadow:0 1px 0 var(--button-edge)}.learner-button-secondary{color:var(--app-accent-hover);background:var(--app-sage);border:var(--app-outline) solid #a8d392;--button-edge:#8cbd73;box-shadow:0 var(--app-control-depth) 0 var(--button-edge)}.learner-button-secondary:hover:not(:disabled):not([aria-disabled=true]){border-color:var(--app-accent)}.learner-link{color:var(--app-accent);border-radius:var(--bento-radius);padding-inline:0}.learner-link:hover:not(:disabled):not([aria-disabled=true]){color:var(--app-accent-hover);text-decoration:none}body:has(:is(.learner-app,.learner-dialog)) .learner-menu [data-highlighted]{box-shadow:inset 0 0 0 1px var(--app-accent,#19804b);background:0 0}body:has(:is(.learner-app,.learner-dialog)) .learner-menu a:hover{box-shadow:inset 0 0 0 1px var(--app-accent,#19804b);background:0 0}body:has(:is(.learner-app,.learner-dialog)) .learner-select-item[data-highlighted]:not([data-selected]){background:0 0}body:has(:is(.learner-app,.learner-dialog)) :is(.learner-menu,.learner-select-popup){border-width:var(--app-outline,2px)}body:has(:is(.learner-app,.learner-dialog)) :is(.learner-menu :focus-visible,.learner-select-item[data-highlighted]){outline-width:var(--app-outline,2px)}.learner-button[aria-disabled=true],.learner-button-secondary[aria-disabled=true],.learner-app button:disabled,.learner-dialog button:disabled{opacity:.55;cursor:not-allowed}.learner-app :where(a,button,summary,input[type=checkbox],input[type=radio]):focus-visible,.learner-dialog :where(a,button,input[type=checkbox],input[type=radio]):focus-visible{outline:var(--app-outline) solid var(--app-accent,#19804b);outline-offset:4px}.learner-field::placeholder{color:#5c665c}.learner-app label,.learner-dialog label{font-weight:500}.learner-app .learner-field,.learner-dialog .learner-field{border-width:var(--app-outline);font-weight:500}:is(.learner-app,.learner-dialog) .learner-select-trigger.learner-field:focus-visible{outline-width:var(--app-outline)}.learner-app textarea,.learner-dialog textarea{resize:vertical}.learner-button,.learner-button-secondary{text-align:center;overflow-wrap:anywhere}.learner-panel{background:var(--app-surface);border:var(--app-outline) solid var(--app-border);border-radius:var(--bento-radius);box-shadow:0 4px 12px -8px #26312533}.learner-row{border-bottom:1px solid var(--app-border);align-items:center;gap:20px;padding:18px 0;display:flex}.learner-row:first-child{border-top:1px solid var(--app-border)}.learner-error{color:#a0332b;font-size:.95rem;line-height:1.5}.learner-success{color:var(--app-accent)}.learner-app .learner-back{color:var(--app-accent);justify-content:flex-start;justify-items:start;padding-inline:0}.learner-app .learner-back svg{stroke-width:2.5px;width:var(--app-icon-action);height:var(--app-icon-action)}.learner-app .learner-back:is(:hover,:focus-visible):not(:disabled):not([aria-disabled=true]){background:0 0}.learner-app .learner-skeleton,.learner-dialog .learner-skeleton{border-radius:var(--bento-radius);box-shadow:none;background:0 0;border-color:#0000}.learner-loader{border:3px solid color-mix(in srgb, var(--app-accent) 20%, transparent);border-top-color:var(--app-accent);border-radius:50%;flex:none;place-self:center;width:28px;height:28px;margin:auto;animation:.8s linear infinite learner-loader-spin;display:block}.learner-button .learner-loader{border-color:color-mix(in srgb, currentColor 20%, transparent);border-top-color:currentColor}:is(.learner-app,.learner-dialog) :has(>.learner-loader:only-child){place-items:center;display:grid}@keyframes learner-loader-spin{to{transform:rotate(1turn)}}:is(.learner-app,.learner-dialog) .learner-loader:not(:is(button,a) .learner-loader){animation:learner-loader-spin .8s linear infinite, learner-loader-in .16s var(--ease-out) .24s backwards}@keyframes learner-loader-in{0%{opacity:0}}.learner-dialog input[type=search]::-webkit-search-cancel-button{appearance:none;cursor:pointer;background:var(--app-muted);width:20px;height:20px;margin-right:4px;-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='M6 6l12 12M18 6L6 18'/%3E%3C/svg%3E") 50%/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='M6 6l12 12M18 6L6 18'/%3E%3C/svg%3E") 50%/contain no-repeat}body:has(:is(.learner-app,.learner-dialog)) .learner-dialog:is([role=dialog],[role=alertdialog]){border-width:var(--app-outline);opacity:1;transition:opacity var(--motion-base) var(--ease-out), transform var(--motion-base) var(--ease-snap);transform:translateY(0)}body:has(:is(.learner-app,.learner-dialog)) .learner-dialog:is([role=dialog],[role=alertdialog]):is([data-starting-style],[data-ending-style]){opacity:0;transform:translateY(100dvh)}@media (prefers-reduced-motion:reduce){body:has(:is(.learner-app,.learner-dialog)) .learner-dialog:is([role=dialog],[role=alertdialog]){transition:opacity var(--motion-fast) var(--ease-out)!important}body:has(:is(.learner-app,.learner-dialog)) .learner-dialog:is([role=dialog],[role=alertdialog]):is([data-starting-style],[data-ending-style]){transform:none}}.learner-press{isolation:isolate;scrollbar-width:none;background:color-mix(in srgb, var(--app-ink) 7%, transparent);border:0;border-radius:999px;align-items:stretch;gap:0;width:100%;min-width:0;max-width:100%;min-height:54px;margin:0;padding:3px;display:flex;position:relative;overflow:auto hidden}.learner-press>:is(button,a){width:var(--learner-press-segment-min,auto);min-width:0;min-height:48px;box-shadow:none;color:var(--app-muted);font:inherit;text-align:center;white-space:nowrap;overflow-wrap:normal;word-break:keep-all;cursor:pointer;transition:color var(--motion-fast) var(--ease-out), background-color var(--motion-fast) var(--ease-out);background:0 0;border:0;border-radius:999px;flex:1 1 0;justify-content:center;align-items:center;gap:6px;margin:0;padding:10px 8px;font-size:clamp(.875rem,3.6vw,1rem);font-weight:700;line-height:1.35;text-decoration:none;display:flex}:is(.learner-app,.learner-dialog) .learner-press>:is(button,a){padding-inline:clamp(8px,2vw,16px)}.learner-press[data-overflow]>:is(button,a){flex:1 0 var(--learner-press-segment-min)}@media (max-width:360px){.learner-press>:is(button,a){letter-spacing:-.04em}}@media (hover:hover){.learner-press>:is(button,a):where(:not([aria-pressed=true],[aria-current=page],[aria-checked=true],[data-selected],:disabled,[aria-disabled=true])):hover{color:var(--app-ink);background:color-mix(in srgb, var(--app-ink) 6%, transparent)}}.learner-press>:is([aria-pressed=true],[aria-current=page],[aria-checked=true],[data-selected]){color:var(--app-surface);background:var(--app-accent)}.learner-press[data-press-pill]:after{content:"";z-index:-1;box-sizing:border-box;width:var(--learner-press-w);height:var(--learner-press-h);background:var(--app-accent);transform:translate(var(--learner-press-x), var(--learner-press-y));pointer-events:none;border-radius:999px;position:absolute;top:0;left:0}.learner-press[data-press-glide]:after{transition:transform var(--motion-base) var(--ease-out), width var(--motion-base) var(--ease-out), height var(--motion-base) var(--ease-out)}.learner-press[data-press-pill]>:is([aria-pressed=true],[aria-current=page],[aria-checked=true],[data-selected]){transition:color var(--motion-base) var(--ease-out), background-color var(--motion-fast) var(--ease-out);background:0 0}.learner-press>:is(button,a):focus-visible{z-index:1;outline:var(--app-outline) solid var(--app-accent-edge);outline-offset:-5px;position:relative}.learner-press>:is([aria-pressed=true],[aria-current=page],[aria-checked=true],[data-selected]):focus-visible{outline-color:var(--app-surface)}.learner-app .jp{font-family:var(--font-jp), "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;line-height:1.55}.learner-app ruby,.learner-dialog ruby{ruby-position:over}.learner-app rt,.learner-dialog rt{font-family:var(--font-jp);letter-spacing:normal;font-size:.45em;font-weight:400}.learner-app input[type=checkbox],.learner-dialog input[type=checkbox]{width:18px;height:18px;accent-color:var(--app-accent)}body:has(.learner-app) .learner-menu{font-family:var(--font-body), sans-serif}body:has(:is(.learner-app,.learner-dialog)) .learner-select-popup{font-family:var(--font-body), sans-serif}body:has(.learner-app) .learner-menu svg{width:var(--app-icon-secondary,24px);height:var(--app-icon-secondary,24px)}body:has(.learner-app) :is(.learner-select-item[data-selected],.learner-select-group-label){font-weight:500}body:has(.learner-app) .learner-select-popup{background:var(--app-bg,#f7f6f0)}@media (min-width:1500px){.learner-page{padding-top:52px}}@media (max-width:1090px){.learner-page{padding:36px 28px 48px}}@media (max-width:760px){.learner-provider-status{justify-content:space-between;align-items:flex-start;padding-inline:20px}.learner-page{padding:26px 20px 36px}.learner-app,.learner-dialog{--app-heading-size:2.1rem}.learner-page h2{font-size:1.4rem}.learner-page-header{flex-wrap:wrap;align-items:flex-start;gap:10px;margin-bottom:24px}.learner-button,.learner-button-secondary{min-height:54px;padding-inline:16px}}.learner-shell:has([data-session-focus]){padding-bottom:0;display:block}.learner-shell:has([data-session-focus]) .learner-sidebar{display:none}@media (max-width:760px){.learner-page:has(>[data-session-focus]){padding-top:calc(10px + env(safe-area-inset-top))}}.learner-field:focus{border-color:var(--app-accent,#19804b)}.learner-field:focus-visible{outline:none}.learner-ios-download-toggle{justify-self:start}.learner-app{--bento-gap:14px;--bento-pad:20px;--bento-line:#20282017;--bento-paper:#fffefa;--bento-matcha:var(--app-sage);--bento-sun:var(--app-yellow);--bento-rose:var(--app-rose);--bento-sky:var(--app-sage);--bento-deep:var(--app-accent-hover);--bento-ink:#202820;--bento-muted:#586258;--bento-ease:var(--ease-out);--bento-tabbar:68px}@media (max-width:760px){.learner-app{--bento-gap:12px;--bento-pad:16px}}.bento-page{--bento-inset:44px;width:100%;max-width:1240px;padding:44px var(--bento-inset) 64px;margin-inline:auto}.bento-page:focus{outline:none}@media (min-width:1500px){.bento-page{padding-top:52px}}@media (max-width:1090px){.bento-page{--bento-inset:28px;padding-top:36px;padding-bottom:52px}}@media (max-width:760px){.bento-page{--bento-inset:20px;padding-top:18px;padding-bottom:32px}}.bento-page:not(:has([data-session-focus])) .learner-page{max-width:none;margin:0;padding:0}.bento-page:has([data-session-focus]){max-width:none;margin:0;padding:0}.bento-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px 20px;margin:0 0 24px;display:flex}@media (max-width:760px){.bento-header{margin-bottom:18px}}.bento{--bento-cols:2;grid-template-columns:repeat(var(--bento-cols), minmax(0, 1fr));gap:var(--bento-gap);align-items:stretch;display:grid}.bento>*{grid-column:1/-1;min-width:0}@media (prefers-reduced-motion:no-preference){.bento-page:not(:has([data-session-focus])){animation:.2s cubic-bezier(.22,1,.36,1) learner-page-enter}html[data-route-fades] .bento-page{animation:none}html[data-route-fades]:has(.learner-shell){view-transition-name:none}html[data-route-fades] .bento-page{view-transition-name:learner-page}html[data-route-fades] .bento-page [data-slide]{animation:none}}@keyframes learner-page-enter{0%{opacity:0}to{opacity:1}}@media (min-width:1180px){.bento{--bento-cols:12}}@media (min-width:761px) and (max-width:1179px){.bento{--bento-cols:8}}@media (min-width:1180px){.bento>.bento-c1{grid-column:span 1}.bento>.bento-c2{grid-column:span 2}.bento>.bento-c3{grid-column:span 3}.bento>.bento-c4{grid-column:span 4}.bento>.bento-c5{grid-column:span 5}.bento>.bento-c6{grid-column:span 6}.bento>.bento-c7{grid-column:span 7}.bento>.bento-c8{grid-column:span 8}.bento>.bento-c9{grid-column:span 9}.bento>.bento-c10{grid-column:span 10}.bento>.bento-c11{grid-column:span 11}.bento>.bento-c12{grid-column:span 12}.bento>.bento-r2{grid-row:span 2}.bento>.bento-half{grid-column:span 6}.bento>.bento-third{grid-column:span 4}.bento>.bento-quarter{grid-column:span 3}.bento>.bento-wide{grid-column:span 7}.bento>.bento-side{grid-column:span 5}}@media (min-width:761px) and (max-width:1179px){.bento>.bento-m1{grid-column:span 1}.bento>.bento-m2{grid-column:span 2}.bento>.bento-m3{grid-column:span 3}.bento>.bento-m4{grid-column:span 4}.bento>.bento-m5{grid-column:span 5}.bento>.bento-m6{grid-column:span 6}.bento>.bento-m7{grid-column:span 7}.bento>.bento-m8{grid-column:span 8}.bento>:is(.bento-half,.bento-third,.bento-quarter){grid-column:span 4}.bento>:is(.bento-half,.bento-third,.bento-quarter):last-child:nth-child(odd){grid-column:span 8}}@media (max-width:760px){.bento>.bento-s1{grid-column:span 1}.bento>.bento-s2{grid-column:span 2}.bento>.bento-quarter{grid-column:span 1}.bento>.bento-quarter:last-child:nth-child(odd){grid-column:span 2}}.bento-section{align-content:start;gap:12px;display:grid}.bento-head{justify-content:space-between;align-items:baseline;gap:12px;padding-top:8px;display:flex}.bento-head .bento-title{font-size:1.125rem;font-weight:700}::view-transition-group(learner-page){animation-duration:.2s;animation-timing-function:cubic-bezier(.22,1,.36,1)}::view-transition-old(learner-page){animation-duration:.2s;animation-timing-function:cubic-bezier(.22,1,.36,1)}::view-transition-new(learner-page){animation-duration:.2s;animation-timing-function:cubic-bezier(.22,1,.36,1)}::view-transition-group(learner-page){animation:none}@media (max-width:760px){html[data-route-fades]:has(.learner-shell):not(:has([data-session-focus]))::view-transition{clip-path:inset(calc(env(safe-area-inset-top) + 44px) 0 calc(56px + var(--bento-tabbar-safe)))}}@media (prefers-reduced-motion:reduce){::view-transition-group(learner-page){animation:none}::view-transition-old(learner-page){animation:none}::view-transition-new(learner-page){animation:none}}.bento-tile{--tile-bg:var(--bento-paper);--tile-ink:var(--bento-ink);--tile-muted:var(--bento-muted);--tile-line:var(--app-border);--tile-accent:var(--app-accent);--tile-hover:color-mix(in srgb, var(--app-accent) 55%, transparent);--tile-well:color-mix(in srgb, var(--tile-ink) 6%, transparent);min-width:0;padding:var(--bento-pad);color:var(--tile-ink);background:var(--tile-bg);border:var(--app-outline) solid var(--tile-line);border-radius:var(--bento-radius);flex-direction:column;gap:10px;display:flex;position:relative}.bento-matcha{--tile-bg:var(--bento-matcha)}.bento-sun{--tile-bg:var(--bento-sun)}.bento-rose{--tile-bg:var(--bento-rose)}.bento-sky{--tile-bg:var(--bento-sky)}.bento-deep{--tile-bg:var(--bento-deep);--tile-ink:#fffefa;--tile-muted:#d3e3d6;--tile-line:#fffefa24;--tile-accent:#d3e3d6;--tile-hover:#fffefa73}.bento-green{--tile-bg:var(--app-accent);--tile-ink:#fffefa;--tile-muted:#eef6ef;--tile-line:var(--app-accent);--tile-accent:#fffefa;--tile-hover:#fffefa73}.bento-tile :is(h1,h2,h3,h4){color:inherit}.bento-tile .bento-title{letter-spacing:-.01em;margin:0;font-size:1.0625rem;font-weight:700;line-height:1.3}.bento-tile .bento-num{letter-spacing:-.03em;font-variant-numeric:tabular-nums;font-size:clamp(2.25rem,4.6vw,3.25rem);font-weight:700;line-height:1}.bento-tile .bento-num-xl{font-size:clamp(3.5rem,8vw,5.5rem)}.bento-tile .bento-meta{color:var(--tile-muted);text-wrap:pretty;margin:0;font-size:.875rem;line-height:1.45}.bento-tile .bento-foot{gap:10px;margin-top:auto;padding-top:6px;display:grid}.bento-track{height:var(--app-track-height);background:color-mix(in srgb, var(--tile-ink) 12%, transparent);border-radius:999px;display:block;overflow:hidden}.bento-track>span{border-radius:inherit;background:var(--tile-accent);transform-origin:0;width:100%;height:100%;transition:transform var(--motion-base) var(--bento-ease);display:block}:is(.bento-track,.learner-status-bar)>span[data-fill]{width:calc(var(--fill) * 100%);transition:width var(--motion-base) var(--bento-ease);position:relative;transform:none}:is(.bento-track,.learner-status-bar)>span[data-fill=started]:before{content:"";inset-block:0;aspect-ratio:1;border-radius:inherit;background:inherit;position:absolute;left:0}.bento-link{--tile-line:var(--app-control-border);color:var(--tile-ink);font:inherit;text-align:left;cursor:pointer;transition:border-color var(--motion-fast) var(--ease-out), transform var(--motion-fast) var(--ease-out);text-decoration:none}.bento-tile:is(.bento-matcha,.bento-sun,.bento-rose,.bento-sky){--tile-line:color-mix(in srgb, var(--tile-bg) 78%, var(--app-ink))}button.bento-tile{appearance:none;width:100%}.bento-deep.bento-link{--tile-line:color-mix(in srgb, var(--bento-paper) 35%, transparent)}.bento-link:hover{border-color:var(--tile-hover)}.bento-link:active{transform:scale(.995)}.learner-app .bento-link:focus-visible{outline:var(--app-outline) solid var(--app-accent);outline-offset:2px}.learner-app .bento-deep.bento-link:focus-visible{outline-color:var(--bento-paper)}.bento-deep .learner-button{color:var(--bento-deep)}.bento-green .learner-button{color:var(--app-accent-hover)}:is(.bento-deep,.bento-green) .learner-button{--button-edge:#a8d392;box-shadow:0 var(--app-control-depth) 0 var(--button-edge);background:#fffefa;border-color:#fffefa}.bento-deep .learner-button:hover:not(:disabled):not([aria-disabled=true]){border-color:var(--app-accent)}.bento-green .learner-button:hover:not(:disabled):not([aria-disabled=true]){border-color:var(--app-sage)}:is(.bento-deep,.bento-green) .learner-button:active:not(:disabled):not([aria-disabled=true]){box-shadow:0 1px 0 var(--button-edge)}:is(.bento-deep,.bento-green) .learner-button-secondary{color:var(--app-accent-hover);background:var(--app-sage);--button-edge:#8cbd73;box-shadow:0 var(--app-control-depth) 0 var(--button-edge);border-color:#a8d392}.bento-deep .learner-button-secondary:hover:not(:disabled):not([aria-disabled=true]){border-color:var(--app-accent-hover)}.bento-green .learner-button-secondary:hover:not(:disabled):not([aria-disabled=true]){border-color:#fffefa}.learner-app :is(.bento-deep,.bento-green) :where(a,button,summary,input):focus-visible,:is(.bento-deep,.bento-green) [data-guide-active=true]{outline-color:#fffefa}@media (prefers-reduced-motion:reduce){.bento-link:hover,.bento-link:active{transform:none}}.learner-shell{grid-template-columns:264px minmax(0,1fr);min-height:100dvh;display:grid}.learner-sidebar{background:var(--app-accent);color:#fffefa;flex-direction:column;height:100dvh;padding:24px 16px 20px;display:flex;position:sticky;top:0;overflow-y:auto}.bento-skip{z-index:70;border-radius:var(--bento-radius);color:var(--app-accent-hover);background:#fffefa;padding:12px 16px;font-weight:700;text-decoration:none;position:fixed;top:8px;left:8px;transform:translateY(-160%)}.bento-skip:focus{transform:none}.learner-wordmark{border-radius:var(--bento-radius);min-height:44px;font-family:var(--font-display), sans-serif;letter-spacing:-.03em;color:#fffefa;align-items:center;padding-inline:14px;font-size:1.65rem;font-weight:900;line-height:1.2;text-decoration:none;display:flex}.learner-brand{justify-content:space-between;align-items:center;gap:8px;display:flex}.learner-streak{border-radius:var(--bento-radius);color:#fffefa;font-variant-numeric:tabular-nums;min-width:44px;min-height:44px;transition:box-shadow var(--motion-fast) var(--ease-out);flex:none;align-items:center;gap:4px;padding:0 10px;font-size:1.125rem;font-weight:700;line-height:1;text-decoration:none;display:inline-flex}.learner-streak svg{width:24px;height:24px}.learner-streak:hover{box-shadow:inset 0 0 0 1px #fffefa73}.learner-navigation{flex-direction:column;gap:4px;margin-top:24px;display:flex;position:relative}.learner-navigation a{z-index:1;color:#fffefa;min-height:52px;transition:background-color var(--motion-fast) var(--ease-out), transform var(--motion-fast) var(--ease-out);border-radius:12px;align-items:center;gap:14px;padding:10px 14px;font-size:1.25rem;font-weight:500;line-height:1.2;text-decoration:none;display:flex;position:relative}.learner-navigation-indicator{background:var(--app-accent-hover);opacity:0;pointer-events:none;border-radius:12px;position:absolute;top:0;left:0}.learner-navigation[data-indicator-ready]>.learner-navigation-indicator{transition:transform .22s cubic-bezier(.22,1,.36,1)}.learner-navigation-indicator[data-active]{opacity:1}@media (hover:hover) and (pointer:fine){.learner-navigation a:hover{box-shadow:inset 0 0 0 1px #fffefa73}}.learner-navigation a[aria-current=page],.learner-navigation a[aria-current=page]:hover{color:#fffefa;background:var(--app-accent-hover)}.learner-navigation[data-indicator-ready] a[aria-current=page]{background:0 0}.learner-navigation a>.learner-navigation-pending{z-index:-1;border-radius:inherit;background:var(--app-accent-hover);opacity:0;pointer-events:none;transition:opacity var(--motion-fast) var(--ease-out);display:block;position:absolute;inset:0}.learner-navigation a>.learner-navigation-pending[data-pending]{opacity:.75;transition-delay:.12s}@media (prefers-reduced-motion:reduce){.learner-navigation a>.learner-navigation-pending[data-pending]{transition:opacity 0s linear .12s!important}}.learner-navigation svg{width:var(--app-icon-navigation);height:var(--app-icon-navigation)}.learner-shell .learner-sidebar :where(a,button):focus-visible{outline:var(--app-outline) solid #fffefa;outline-offset:2px}.learner-account-menu{gap:10px;margin-top:auto;padding-top:20px;display:grid}.learner-sidebar,.learner-account-menu,.learner-account-menu>*{min-width:0}.learner-account-trigger{border-radius:var(--bento-radius);color:#fffefa;min-height:60px;transition:background-color var(--motion-fast) var(--ease-out), transform var(--motion-fast) var(--ease-out);align-items:center;gap:8px;padding:6px 8px;font-size:1.0625rem;font-weight:500;text-decoration:none;display:flex}.learner-account-trigger>span:first-child{width:40px;height:40px}.learner-account-trigger>span:nth-child(2){white-space:normal;flex:1;min-width:0}.learner-account-trigger>svg{width:var(--app-icon-secondary);height:var(--app-icon-secondary);flex:none}.learner-account-trigger span{overflow-wrap:anywhere}.learner-status{border-radius:var(--bento-radius);color:#fffefa;min-height:48px;transition:background-color var(--motion-fast) var(--ease-out), border-color var(--motion-fast) var(--ease-out);background:#1d513f73;border:1px solid #fffefa33;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;padding:10px 14px;text-decoration:none;display:grid;container-type:inline-size}.learner-status:hover{border-color:#fffefa80}.learner-status strong{white-space:nowrap;font-size:1rem;font-weight:700}.learner-status-xp{font-variant-numeric:tabular-nums;gap:3px;min-width:0;font-size:.75rem;font-weight:700;line-height:1.2;display:grid}.learner-status-xp>span:first-child{white-space:nowrap}.learner-status-bar{height:var(--app-track-height);background:#fffefa3d;border-radius:999px;overflow:hidden}.learner-status-bar>span{border-radius:inherit;transform-origin:0;height:100%;transition:transform var(--motion-base) var(--bento-ease);background:#fffefa;display:block}.learner-status-streak{font-variant-numeric:tabular-nums;align-items:center;gap:3px;font-weight:700;display:inline-flex}.learner-ios-download{border:var(--app-outline) solid var(--app-border);border-radius:var(--bento-radius);background:var(--bento-paper);color:var(--app-ink);padding:12px;position:relative}.learner-ios-download a{border-radius:var(--bento-radius);min-height:64px;color:inherit;align-items:center;gap:12px;padding-right:30px;text-decoration:none;display:flex}.learner-ios-phone{border:2px solid var(--app-ink);background:var(--bento-paper);border-radius:9px;flex:none;place-items:center;width:42px;height:66px;display:grid;position:relative}.learner-ios-phone:before{content:"";background:var(--app-ink);border-radius:4px;width:14px;height:3px;position:absolute;top:3px;left:50%;transform:translate(-50%)}.learner-ios-phone img{border-radius:7px;width:30px;height:30px}.learner-ios-copy{gap:4px;min-width:0;display:grid}.learner-ios-copy strong{font-size:.9375rem;line-height:1.3}.learner-ios-copy>span{color:var(--app-accent-hover);font-size:1rem;font-weight:700;line-height:1.3;text-decoration:none}.learner-ios-download button{border-radius:var(--bento-radius);width:44px;height:44px;color:var(--app-muted);transition:background-color var(--motion-fast) var(--ease-out), color var(--motion-fast) var(--ease-out);background:0 0;border:0;place-items:center;display:grid;position:absolute;top:2px;right:2px}.learner-ios-download button:hover,.learner-ios-download a:hover .learner-ios-copy>span{color:var(--app-ink)}@media (min-width:1500px){.learner-shell{grid-template-columns:280px minmax(0,1fr)}}@media (max-width:1090px){.learner-shell{grid-template-columns:244px minmax(0,1fr)}.learner-sidebar{padding-inline:14px}}@media (max-height:820px) and (min-width:761px){.learner-sidebar{padding-block:16px 12px}.learner-navigation{gap:2px;margin-top:14px}.learner-navigation a{min-height:46px;padding-block:6px}.learner-account-menu{gap:8px;padding-top:10px}.learner-ios-download a{min-height:56px}}@media (min-width:761px){.learner-sidebar{container-type:size}.learner-brand,.learner-navigation,.learner-account-menu,.learner-navigation a{flex-shrink:0}.learner-navigation{margin-inline:-4px;padding:4px}@container (max-height:32rem){.learner-ios-download{display:none}}}@media (max-width:760px){html:has(.learner-shell){--bento-tabbar-safe:max(0px, calc(env(safe-area-inset-bottom) - 12px))}html:has(.learner-shell):not(:has([data-session-focus])){scroll-padding-bottom:calc(76px + var(--bento-tabbar-safe))}.learner-shell{--bento-tabbar:56px;padding-bottom:calc(var(--bento-tabbar) + 16px + var(--bento-tabbar-safe));display:block}.learner-sidebar{height:auto;padding:env(safe-area-inset-top) 16px 0;background:var(--app-accent);color:#fffefa;border-bottom:0;flex-direction:row;align-items:center;gap:8px;position:relative;overflow:visible}.learner-brand{display:contents}.learner-streak{display:none}.learner-wordmark{color:#fffefa;flex:1;padding-inline:4px;font-size:1.4rem;display:none}.learner-sidebar:not([data-status]) .learner-wordmark{display:flex}.learner-account-menu{flex:1;align-items:center;gap:12px;margin:0;padding:0;display:flex}.learner-sidebar:not([data-status]) .learner-account-menu{flex:none}.learner-status{--app-muted:#fffefa;--app-accent-hover:#fffefa;border-radius:var(--bento-radius);color:#fffefa;background:0 0;border:0;flex:1;gap:8px;min-width:0;min-height:44px;padding:6px 10px}.learner-status-bar{background:#fffefa3d}.learner-status-bar>span{background:#fffefa}.learner-status-streak,.learner-status .learner-link{color:#fffefa}.learner-account-trigger{color:#fffefa;border-radius:10px;flex:0 0 44px;justify-content:center;width:44px;min-height:44px;padding:0}.learner-account-trigger>span:first-child{border-color:#fffefa;border-radius:10px;width:44px;height:44px}.learner-account-trigger>span:nth-child(2),.learner-account-trigger>svg{display:none}.learner-shell .learner-sidebar :where(a,button):focus-visible{outline-color:#fffefa}.learner-navigation{z-index:35;padding:4px 8px var(--bento-tabbar-safe);background:var(--app-accent);border-radius:var(--bento-radius) var(--bento-radius) 0 0;border:0;grid-template-columns:repeat(6,minmax(0,1fr));gap:2px;margin:0;display:grid;position:fixed;inset:auto 0 0}.learner-navigation a{border-radius:var(--bento-radius);color:#fffefa;text-align:center;background:0 0;flex-direction:column;justify-content:center;gap:0;min-width:44px;min-height:48px;padding:6px 2px;font-size:12px;font-weight:500;line-height:1.15}.learner-navigation-indicator{border-radius:20px}.learner-navigation a span{display:none}.learner-shell .learner-navigation a:focus-visible{outline-offset:2px;outline-color:#fffefa}.learner-navigation svg{width:40px;height:40px}.learner-ios-download,.learner-ios-download-toggle{display:none}}.bento-gate{text-align:center;grid-template-columns:minmax(0,1fr);justify-items:center;gap:22px;width:min(100% - 32px,44rem);margin:clamp(20px,7vh,72px) auto 40px;padding:28px 24px;display:grid}.bento-gate[data-pending] .bento-gate-copy{visibility:hidden}.bento-gate-art{-o-object-fit:contain;object-fit:contain;width:auto;height:clamp(96px,17vh,150px)}.bento-gate-copy{justify-items:center;min-width:0;display:grid}.bento-gate h1{margin:0 0 10px;font-size:clamp(1.75rem,6vw,2.25rem);line-height:1.2}.bento-gate p{color:var(--tile-muted);margin:0 0 24px;font-size:1.0625rem;line-height:1.55}.bento-gate-actions{gap:12px;width:100%;display:grid}.bento-gate-actions>a{justify-content:center;align-items:center;width:100%;min-height:54px;display:flex}.bento-gate-intro{margin-top:14px}@media (min-width:640px){.bento-gate{text-align:left;grid-template-columns:auto minmax(0,1fr);place-items:center start;gap:40px;padding:40px}.bento-gate-copy{justify-items:start}.bento-gate-actions{grid-template-columns:repeat(2,minmax(0,1fr))}}.learner-app :is(a,button,summary),.learner-app :is(a,button,summary) *,.learner-dialog :is(a,button,summary),.learner-dialog :is(a,button,summary) *{text-decoration:none!important}@media (pointer:fine){.learner-app{overscroll-behavior-y:none}html:has(.learner-app){overscroll-behavior-y:none}body:has(.learner-app){overscroll-behavior-y:none}}:is(.learner-app,.learner-dialog) select.learner-field:not([multiple]){appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23586258' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m4 6 4 4 4-4'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right var(--app-select-inset) center;background-size:16px 16px;padding-inline-end:calc(var(--app-select-inset) + 32px)}:is(.learner-app,.learner-dialog) select.learner-field:not([multiple]):is(:lang(ae),:lang(ar),:lang(arc),:lang(bcc),:lang(bqi),:lang(ckb),:lang(dv),:lang(fa),:lang(glk),:lang(he),:lang(ku),:lang(mzn),:lang(nqo),:lang(pnb),:lang(ps),:lang(sd),:lang(ug),:lang(ur),:lang(yi)){background-position:left var(--app-select-inset) center}@media (forced-colors:active){:is(.learner-app,.learner-dialog) select.learner-field:not([multiple]){appearance:auto;background-image:none}}@media (prefers-reduced-motion:reduce){.learner-app *,.learner-dialog *{transition:none!important;animation:none!important}.learner-button:active,.learner-button-secondary:active,.learner-navigation a:active{transform:none!important}.learner-press:has(>:active){transform:none!important}.learner-press:after{transition:none!important}}@media (forced-colors:active){:is(.learner-app,.learner-dialog) .learner-field:focus-visible{outline:var(--app-outline) solid Highlight;outline-offset:4px}.learner-press>:is([aria-pressed=true],[aria-current=page],[aria-checked=true],[data-selected]),.learner-press[data-press-pill]>:is([aria-pressed=true],[aria-current=page],[aria-checked=true],[data-selected]){forced-color-adjust:none;color:highlighttext;background:highlight}.learner-press{border:1px solid canvastext}.learner-press[data-press-pill]:after{display:none}.learner-navigation a[aria-current=page],.learner-navigation[data-indicator-ready] a[aria-current=page]{forced-color-adjust:none;color:highlighttext;background:highlight;outline-color:canvastext}.learner-navigation-indicator{display:none}:is(.learner-app,.learner-dialog) :is([role=progressbar],.bento-track,.learner-status-bar){outline:1px solid canvastext}:is(.learner-app,.learner-dialog) :is([role=progressbar],.bento-track,.learner-status-bar)>span{background:canvastext!important}}html:has(.learner-app,.learner-dialog){--scroll-thumb:#19804b;--scroll-thumb-hover:#146b3b;--scroll-bar:10px;--scroll-edge:3px;--scroll-inset:1.5rem;--scroll-inset-wide:clamp(1.5rem, 14dvh, 7rem)}html:has(.learner-app,.learner-dialog) .learner-sidebar{--scroll-thumb:#fffefabf;--scroll-thumb-hover:#fffefa}@media (hover:hover) and (pointer:fine){@supports selector(::-webkit-scrollbar){html:has(.learner-app,.learner-dialog)::-webkit-scrollbar{width:var(--scroll-bar);height:var(--scroll-bar);background:0 0}html:has(.learner-app,.learner-dialog) ::-webkit-scrollbar{width:var(--scroll-bar);height:var(--scroll-bar);background:0 0}html:has(.learner-app,.learner-dialog)::-webkit-scrollbar-track{margin:var(--scroll-inset);background:0 0}html:has(.learner-app,.learner-dialog) ::-webkit-scrollbar-track{margin:var(--scroll-inset);background:0 0}html:has(.learner-app,.learner-dialog)::-webkit-scrollbar-track{margin-block:var(--scroll-inset-wide)}html:has(.learner-app,.learner-dialog) body::-webkit-scrollbar-track{margin-block:var(--scroll-inset-wide)}html:has(.learner-app,.learner-dialog) .learner-dialog[role=dialog]::-webkit-scrollbar-track{margin-block:var(--scroll-inset-wide)}html:has(.learner-app,.learner-dialog)::-webkit-scrollbar-thumb{border:var(--scroll-edge) solid transparent;background:var(--scroll-thumb) padding-box;border-radius:999px;min-width:44px;min-height:44px}html:has(.learner-app,.learner-dialog) ::-webkit-scrollbar-thumb{border:var(--scroll-edge) solid transparent;background:var(--scroll-thumb) padding-box;border-radius:999px;min-width:44px;min-height:44px}html:has(.learner-app,.learner-dialog)::-webkit-scrollbar-thumb:hover{border-width:calc(var(--scroll-edge) - 1px);background:var(--scroll-thumb-hover) padding-box}html:has(.learner-app,.learner-dialog)::-webkit-scrollbar-thumb:active{border-width:calc(var(--scroll-edge) - 1px);background:var(--scroll-thumb-hover) padding-box}html:has(.learner-app,.learner-dialog) ::-webkit-scrollbar-thumb:hover{border-width:calc(var(--scroll-edge) - 1px);background:var(--scroll-thumb-hover) padding-box}html:has(.learner-app,.learner-dialog) ::-webkit-scrollbar-thumb:active{border-width:calc(var(--scroll-edge) - 1px);background:var(--scroll-thumb-hover) padding-box}html:has(.learner-app,.learner-dialog)::-webkit-scrollbar-corner{background:0 0}html:has(.learner-app,.learner-dialog) ::-webkit-scrollbar-corner{background:0 0}}@supports not selector(::-webkit-scrollbar){html:has(.learner-app,.learner-dialog){scrollbar-color:var(--scroll-thumb) transparent}:where(html:has(.learner-app,.learner-dialog),html:has(.learner-app,.learner-dialog) *){scrollbar-width:thin}html:has(.learner-app,.learner-dialog) .learner-sidebar{scrollbar-color:var(--scroll-thumb) transparent}}}@media (max-width:760px),(hover:none) and (pointer:coarse){:is(html:has(.learner-app,.learner-dialog),html:has(.learner-app,.learner-dialog) *){scrollbar-width:none!important}html:has(.learner-app,.learner-dialog)::-webkit-scrollbar{display:none}html:has(.learner-app,.learner-dialog) ::-webkit-scrollbar{display:none}}html[lang=ko],html[lang=ko] :is(.learner-app,.learner-dialog){--font-body:"Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans CJK KR", "Noto Sans KR", sans-serif;--font-display:var(--font-body)}html[lang=zh-Hant],html[lang=zh-Hant] :is(.learner-app,.learner-dialog){--font-body:"PingFang TC", "Microsoft JhengHei", "Noto Sans CJK TC", "Noto Sans TC", sans-serif;--font-display:var(--font-body)}html[lang=zh-Hans],html[lang=zh-Hans] :is(.learner-app,.learner-dialog){--font-body:"PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Noto Sans SC", sans-serif;--font-display:var(--font-body)}html:is([lang=ko],[lang=zh-Hant],[lang=zh-Hans]){--font-jp:"Sunghyun Sans JP", "Sunghyun Sans JP Fallback", "Hiragino Sans", "Yu Gothic", Meiryo, "Noto Sans CJK JP", "Noto Sans JP", sans-serif}html:is([lang=ko],[lang=zh-Hant],[lang=zh-Hans]) :is([lang=ja],.jp){font-family:var(--font-jp)}[lang=ko]{font-family:Apple SD Gothic Neo,Malgun Gothic,Noto Sans CJK KR,Noto Sans KR,sans-serif}[lang=zh-Hant]{font-family:PingFang TC,Microsoft JhengHei,Noto Sans CJK TC,Noto Sans TC,sans-serif}[lang=zh-Hans]{font-family:PingFang SC,Microsoft YaHei,Noto Sans CJK SC,Noto Sans SC,sans-serif}