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0;--activity-toggle-row-gap:var(--space-md);--activity-toggle-row-margin-bottom:var(--space-md);--true-false-choice-selected-bg:#e0e0e0;--true-false-explanation-bg:#fff;--true-false-disabled-outline:#ccc;--download-btn-primary:#007cba;--download-btn-primary-hover:#005a87;--download-btn-secondary:#ff6b35;--download-btn-success:#28a745;--download-btn-danger:#dc3545;--download-btn-text:#fff;--notification-text:#fff;--notification-success:#28a745;--notification-error:#dc3545;--notification-info:#17a2b8;--brand-focus-shadow:rgb(0 0 0 / 10%);--brand-hover-bg:rgb(186 47 31 / 5%);--banner-text:white;--banner-text-secondary:rgb(255 255 255 / 90%);--surface-paper:hsl(210deg 20% 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92%);--true-false-choice-selected-bg:#424242;--true-false-explanation-bg:#333;--true-false-disabled-outline:#666;--download-btn-primary:#4da6d6;--download-btn-primary-hover:#6bb8e0;--download-btn-secondary:#ff8c5a;--download-btn-success:#48c765;--download-btn-danger:#f55a6a;--download-btn-text:#1a1a1a;--notification-text:#1a1a1a;--notification-success:#48c765;--notification-error:#f55a6a;--notification-info:#3dc9dd;--brand-focus-shadow:rgb(255 255 255 / 15%);--brand-hover-bg:rgb(255 120 100 / 10%);--surface-paper:hsl(0deg 0% 16%);--surface-border:hsl(0deg 0% 28%);--section-warmup-accent:#b58a50;--section-warmup-tint:hsl(36deg 14% 14%);--section-warmup-border:hsl(0deg 0% 28%);--section-audio-accent:#7b8a9e;--section-audio-tint:hsl(215deg 16% 14%);--section-audio-border:hsl(0deg 0% 28%);--section-understanding-accent:#974a4c;--section-understanding-tint:hsl(355deg 11% 14%);--section-understanding-border:hsl(0deg 0% 28%);--section-language-accent:#5580a0;--section-language-tint:hsl(207deg 14% 14%);--section-language-border:hsl(0deg 0% 28%);--section-vocab-accent:#8b9299;--section-vocab-tint:hsl(220deg 4% 18%);--section-vocab-border:hsl(220deg 4% 32%);--section-use-it-accent:#639578;--section-use-it-tint:hsl(150deg 11% 14%);--section-use-it-border:hsl(0deg 0% 28%);--btn-activity-text:hsl(0deg 0% 88%);--btn-activity-border:hsl(0deg 0% 38%);--btn-activity-bg:transparent;--btn-activity-hover-bg:hsl(0deg 0% 22%);--btn-activity-hover-border:hsl(0deg 0% 48%);--banner-text:white;--banner-text-secondary:rgb(255 255 255 / 85%);--tooltip-bg:hsl(0deg 0% 10%);--tooltip-text:hsl(0deg 0% 96%);--tooltip-trigger-hover:hsl(5deg 94% 55%)}:focus:not(:focus-visible){outline:0!important;box-shadow:none!important}body,html{height:100%}body{margin:0;padding:0;text-align:left;background:var(--background);font-family:var(--font-body);font-size:18px;font-weight:400;min-height:100%;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased}li{margin:10px 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a:hover{background:var(--light-gray);color:var(--para-text)}.dropdown:hover .dropdown-menu{display:block}.account-nav{position:relative}.account-nav__trigger{display:inline-flex;align-items:center}.account-nav[data-open=true] .account-nav__trigger{text-decoration:underline}.account-nav__menu{position:absolute;top:100%;right:0;min-width:220px;padding:0;border:1px solid var(--light-border);border-radius:var(--radius-sm);background:var(--background);box-shadow:0 2px 8px rgb(0 0 0 / 15%);z-index:1000;overflow:hidden}.account-nav__summary{display:grid;gap:2px;min-width:0;padding:8px 12px;border-bottom:1px solid var(--light-gray)}.account-nav__email,.account-nav__status{margin:0}.account-nav__row{display:flex;align-items:center;min-width:0;border-bottom:1px solid 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var(--space-xl)}.menu{gap:8px 14px}.card__content{background:var(--background);padding:.75rem}.advice_card__content{background:var(--advice-shade);padding:.75rem}.review_card__content{background:var(--review-shade);padding:.75rem}footer{flex-wrap:wrap;gap:var(--space-xs) 0;padding:var(--space-md) var(--space-sm) calc(var(--space-2xl) + env(safe-area-inset-bottom,0px));justify-content:center}footer a{padding:var(--space-xs) 0}footer a:not(:last-child)::after{content:'|';margin:0 var(--space-sm);opacity:.5;pointer-events:none}.section_h2{display:block}.image-holder{width:100%;margin:1rem 0 2rem}.article__image{object-fit:cover;object-position:top}.question-layout{flex-direction:column;align-items:stretch}.question-item legend{margin:0 0 10px}.choices{flex-flow:row wrap;width:100%;min-width:0;justify-content:flex-start;gap:8px 10px}.choice{flex:1 0 100%;min-width:0;margin:0;padding:8px 12px;font-size:14px}#true-false .true-false-result{order:1}#true-false 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var(--space-md)}.icon-card__title{font-size:1rem}.icon-card__thumb{width:50px;height:50px}.front-page__row--hero .browse-card--tabbed{min-height:20rem}.browse-card__chip{aspect-ratio:unset;height:2.5rem;width:100%}.browse-card__popular-list{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-xs) var(--space-md)}.browse-card__popular-item{min-width:0}}.expand{transition:all .3s ease-in-out}.card{position:relative;display:flex;flex-direction:column;border:1px solid var(--light-border);border-radius:var(--radius-lg);overflow:hidden;transition:all .3s ease;height:auto}.card:has(.listen-link),.card:has(.pd-link){border:none}.card[data-level]{border-color:var(--level-color)}.front-page__masonry .card,.front-page__row--hero .card{border-color:var(--surface-border);box-shadow:0 1px 3px rgb(0 0 0 / 5%),0 2px 8px rgb(0 0 0 / 4%)}.front-page__masonry .card[data-level],.front-page__row--hero .card[data-level]{border-color:var(--surface-border)}html[data-theme=dark] 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.card__link{outline:3px solid #fff;outline-offset:-3px}.browse-card{display:grid;grid-template-rows:1fr;gap:var(--space-sm);padding:var(--space-md);height:100%;background:var(--card-bg);box-sizing:border-box}.browse-card__title{font-family:var(--font-heading);font-size:1.4rem;text-transform:uppercase;margin:0}.browse-card__grid{display:grid;grid-template-rows:repeat(5,minmax(0,1fr));gap:var(--space-xs);height:100%;min-height:0}.browse-card__link{display:flex;align-items:center;justify-content:center;width:100%;min-height:0;border-radius:var(--radius-md);text-align:center;font-size:.95rem;font-weight:700;text-transform:uppercase;letter-spacing:.3px;line-height:1.1;color:#fff;text-decoration:none;transition:transform .2s ease,box-shadow .2s ease,filter .2s ease}.browse-card__link:hover{transform:translateY(-2px);box-shadow:0 10px 18px rgb(0 0 0 / 18%);filter:brightness(1.05)}.browse-card__link:focus{outline:2px solid var(--focus-color);outline-offset:3px}.browse-card__link[data-level]{background:var(--level-color)}.browse-card__link--about{background:var(--heading-dull-black);text-transform:none;letter-spacing:.2px;font-size:.9rem}.browse-card--tabbed{display:flex;flex-direction:column;gap:0}.browse-card__tabs{display:flex;border-bottom:2px solid var(--light-border);margin:0 calc(-1 * var(--space-md));padding:0 var(--space-md)}.browse-card__tab{flex:1;padding:var(--space-sm) var(--space-md);border:none;background:0 0;font-family:var(--font-ui);font-size:.9rem;font-weight:600;color:var(--text-light);cursor:pointer;border-bottom:3px solid transparent;margin-bottom:-2px;transition:color .2s ease,border-color .2s ease}.browse-card__tab:hover{color:var(--heading-dull-black)}.browse-card__tab.is-active{color:var(--heading-dull-black);border-bottom-color:var(--flare)}.browse-card__tab:focus{outline:2px solid var(--focus-color);outline-offset:-2px}@supports selector(:focus-visible){.browse-card__tab:focus{outline:0}.browse-card__tab:focus-visible{outline:2px solid var(--focus-color);outline-offset:-2px}}.card.browse-card--tabbed:focus-within{outline:0;box-shadow:none}.browse-card__panel{padding-top:var(--space-md);flex:1;display:flex;flex-direction:column}#panel-popular.browse-card__panel{padding-top:var(--space-sm)}.browse-card__panel[hidden]{display:none}.browse-card__chips{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-sm);margin-bottom:var(--space-sm)}.browse-card__chip{display:grid;place-items:center;aspect-ratio:2/1;padding:var(--space-sm);border-radius:var(--radius-md);font-size:14px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;line-height:1.1;color:#fff;text-decoration:none;text-align:center;box-sizing:border-box;transition:transform .2s ease,box-shadow .2s ease,filter .2s ease}.browse-card__chip[data-level]{background:var(--level-color)}.browse-card__chip:hover{transform:translateY(-1px);box-shadow:0 4px 8px rgb(0 0 0 / 15%);filter:brightness(1.05)}.browse-card__chip:focus{outline:2px solid var(--focus-color);outline-offset:2px}@media (width <= 480px){.front-page__row--hero .browse-card--tabbed{min-height:28rem}.browse-card__chips{grid-template-columns:1fr}.browse-card__chip{aspect-ratio:unset;height:2.5rem;width:100%}.browse-card__popular-list{display:flex;flex-direction:column;gap:var(--space-sm)}.outer{padding:var(--space-md) var(--space-md) var(--space-xl)}.showcase-card .card__title{font-size:1.1rem}.showcase-card .card__teaser{font-size:.9rem}.masonry-column__heading{font-size:.68rem}.masonry-column__more{font-size:.6rem}}.browse-card__helper{font-size:.85rem;color:var(--text-light);margin:0 0 var(--space-sm);line-height:1.4}.browse-card__support-links{display:flex;flex-direction:column;gap:.45rem;margin-top:calc(var(--space-md) + .15rem);padding-top:var(--space-sm);border-top:1px solid color-mix(in oklab,var(--light-border) 80%,transparent);margin-bottom:var(--space-sm)}a.browse-card__support-link,button.browse-card__support-link{display:inline-flex;align-items:center;width:fit-content;max-width:100%;padding:.1rem 0;font-family:var(--font-ui);font-size:1.02rem;font-weight:500;color:var(--heading-dull-black);text-decoration:none;line-height:1.3;transition:transform .2s ease,color .2s ease,text-decoration-color .2s ease}.browse-card__support-link::after{content:'→';flex:0 0 auto;margin-left:.4rem;font-size:.95em;color:var(--flare)}.browse-card__support-link--email::after{content:none}.browse-card__support-link--email .newsletter-cta__icon{display:inline-flex;align-items:center;justify-content:center;width:1rem;height:1rem;flex:0 0 auto;margin-left:.4rem;color:var(--flare);transform:translateY(.02em)}.browse-card__support-link--email .newsletter-cta__icon svg{display:block;width:100%;height:100%}a.browse-card__support-link:hover,button.browse-card__support-link:hover{color:var(--flare);transform:translateX(2px);text-decoration:underline;text-underline-offset:0.16em}.browse-card__support-link:focus{outline:2px solid var(--focus-color);outline-offset:2px}.browse-card__about-link{font-size:.85rem;color:var(--flare);text-decoration:none;margin-top:auto}.browse-card__about-link:hover{text-decoration:underline}.browse-card__popular-item{display:flex;flex-direction:column;gap:2px}.browse-card__popular-link{font-size:.9rem;font-weight:500;color:var(--heading-dull-black);text-decoration:none;line-height:1.3}.browse-card__popular-link:hover{color:var(--flare);text-decoration:underline}.browse-card__popular-meta{font-size:.75rem;color:var(--text-light)}.overlay-card .card__link{position:relative;color:inherit}.overlay-card .card__picture{position:relative}.overlay-card .card__img{aspect-ratio:4/3}.overlay-card__content{position:absolute;left:0;right:0;padding:var(--space-md);color:#fff;z-index:2}.overlay-card--top .overlay-card__content{top:0;padding-top:calc(var(--space-md) + 1.75rem);background:linear-gradient(180deg,rgb(0 0 0 / 65%),rgb(0 0 0 / 0%))}.overlay-card--bottom .overlay-card__content{bottom:0;background:linear-gradient(0deg,rgb(0 0 0 / 65%),rgb(0 0 0 / 0%))}.overlay-card__title{color:#fff;margin:0;text-shadow:0 2px 10px rgb(0 0 0 / 40%)}.showcase-card .card__img{aspect-ratio:4/3}.showcase-card .card__title{min-height:var(--showcase-title-height,auto);margin-bottom:0}.showcase-card .card__content{height:var(--showcase-content-height,auto);display:grid;grid-template-rows:auto minmax(0,1fr);gap:.15rem;padding-bottom:.35rem}.showcase-card .card__teaser{display:-webkit-box;-webkit-line-clamp:var(--showcase-teaser-lines,3);line-clamp:var(--showcase-teaser-lines,3);-webkit-box-orient:vertical;overflow:hidden;line-height:1.45;max-height:var(--showcase-teaser-height,none);margin:0}.icon-card{background:var(--background)}.icon-card[data-level]{background:color-mix(in srgb,var(--level-color) 5%,var(--background))}.icon-card .card__link{flex-direction:row;align-items:center;padding:2.6rem var(--space-md) var(--space-md);gap:var(--space-md)}.icon-card__thumb{width:60px;height:60px;border-radius:var(--radius-sm);object-fit:cover;flex-shrink:0;margin-left:auto;order:2}.icon-card__thumb--portrait{height:80px}.icon-card__title{margin:0;font-size:1.1rem;line-height:1.25;color:var(--heading-dull-black);flex:1;min-width:0;order:1}.partner-card{border:none}.partner-card .card__level-text{text-transform:none;letter-spacing:.2px;background:rgb(0 0 0 / 25%);color:#fff}.partner-card .card__link{align-items:center;justify-content:center;text-align:center;padding:var(--space-2xl) var(--space-lg) var(--space-xl);gap:var(--space-sm)}.partner-card--admin{border:1px solid var(--light-border);background:var(--light-gray);color:var(--heading-dull-black)}.admin-limit .partner-card--admin,.article-limit .partner-card--admin{max-width:282px;width:100%;margin-right:auto}.partner-card--admin .partner-card__body{display:flex;flex-direction:column;align-items:flex-start;text-align:left;padding:var(--space-lg);gap:var(--space-sm)}.partner-card--admin .partner-card__label{margin:0;font-size:.7rem;text-transform:uppercase;letter-spacing:.2em;color:var(--admin-muted)}.partner-card--admin .partner-card__list{width:100%;display:flex;flex-direction:column;border-top:1px solid var(--light-border);margin-top:var(--space-sm)}.partner-card--admin .partner-card__item{display:flex;flex-direction:column;gap:.2rem;padding:var(--space-sm) 0;text-decoration:none;color:inherit;border-bottom:1px solid var(--light-border)}.partner-card--admin .partner-card__item:last-child{border-bottom:none;padding-bottom:0}.partner-card--admin .partner-card__name{font-weight:600}.partner-card--admin .partner-card__desc{font-size:.95rem;color:var(--text-light)}.partner-card--admin .partner-card__item:hover .partner-card__name{text-decoration:underline}@media (width <= 600px){.admin-limit .partner-card--admin,.article-limit .partner-card--admin{max-width:100%}}.card__link{display:flex;flex-direction:column;text-decoration:none;color:inherit;height:100%;position:relative}.card__img{width:100%;display:block;margin:0 auto;aspect-ratio:1/1;object-fit:cover;object-position:top;flex-shrink:0;transition:opacity .3s ease,transform .3s ease}.card__content{background:var(--background);padding:.5rem .75rem;display:flex;flex-direction:column;justify-content:flex-start;position:relative;margin:0}.card__level-text{position:absolute;top:0;left:0;right:0;height:28px;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:#fff;text-transform:uppercase;letter-spacing:.5px;z-index:3;background:var(--light-border);margin:0}.card[data-level] .card__level,.card[data-level] .card__level-text{background:var(--level-color)}.pd-link{display:flex;flex-direction:column;justify-content:center;align-items:center;width:100%;text-align:center;height:40%;color:#fff;background-color:#e8a641;border-radius:35px 0;margin-top:var(--space-xl)}.pd-link h3{font-family:var(--font-printdiscuss);font-size:2.5rem;color:#fff}.pd-link p{font-family:var(--font-narrow);font-size:1.5rem;color:#fff}.pd-link a{text-decoration:none;color:#fff}.listen-link{display:flex;flex-direction:column;justify-content:center;align-items:center;width:100%;margin-top:var(--space-xl);text-align:center;height:40%;color:var(--heading-dull-black);background-color:var(--bg-listen);border-radius:var(--radius-md)}.listen-link h3{font-family:var(--font-display);font-size:2.5rem}.listen-link p{font-family:var(--font-narrow);font-size:1.5rem;color:var(--heading-dull-black)}.listen-link a{text-decoration:none;color:var(--heading-dull-black)}.advice_card__content{background:var(--advice-shade);padding:var(--space-md);flex:1;display:flex;flex-direction:column;justify-content:flex-start}.review_card__content{background:var(--review-shade);padding:var(--space-md);flex:1;display:flex;flex-direction:column;justify-content:flex-start}.card__title{font-family:var(--font-heading);font-size:1.25rem;font-weight:400;line-height:1.1;text-transform:uppercase;margin:0 0 .25rem}.card__title a{text-decoration:none;color:var(--heading-dull-black)}.advert_bg{margin:var(--space-xl) 0;text-align:center;width:100%}.ad-card .advert_bg{margin:0;height:100%;min-height:clamp(280px,60vw,420px);display:flex;align-items:center;justify-content:center}.ad-card .adsbygoogle{width:100%;max-width:100%;min-height:clamp(280px,60vw,420px);display:block}.front-page__row--ad .ad-card .adsbygoogle,.front-page__row--ad .ad-card .advert_bg{min-height:clamp(120px,18vw,180px)}.ad-slot{--ad-slot-reserve-desktop:var(--ad-reserve-inline-desktop);--ad-slot-reserve-mobile:var(--ad-reserve-inline-mobile);--ad-slot-reserve-current:var(--ad-slot-reserve-desktop);margin:var(--space-xl) 0;width:100%}.ad-slot--display{--ad-slot-reserve-desktop:var(--ad-reserve-display-desktop);--ad-slot-reserve-mobile:var(--ad-reserve-display-mobile)}@media (width <= 768px){.ad-slot{--ad-slot-reserve-current:var(--ad-slot-reserve-mobile)}}.ad-slot.is-pending .ad-frame{min-height:var(--ad-slot-reserve-current)}.ad-slot--display 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var(--space-sm)}.audio-player-layout{display:grid;align-items:start;gap:var(--space-xs)}.audio-player-stage{grid-template-areas:'video' 'controls'}.audio-player-stage>p:empty{display:none}.audio-player-layout__player{min-width:0}.audio-player-stage__video{grid-area:video}.audio-player-stage__controls{grid-area:controls;justify-self:center;width:100%;max-width:680px;display:grid;grid-template-columns:minmax(0,1fr);justify-items:center;align-content:start;row-gap:.3rem;padding:0;border:0;background:0 0}.youtube-container--deferred{position:relative;width:100%;max-width:680px;aspect-ratio:16/9;margin-inline:auto;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--activity-border);background:linear-gradient(145deg,rgb(0 0 0 / 82%),rgb(0 0 0 / 58%))}.audio-thumbnail{position:absolute;inset:0;display:block;border:0;padding:0;cursor:pointer;color:#fff;overflow:hidden;background:rgb(0 0 0 / 55%)}.audio-thumbnail:focus-visible{outline:2px solid var(--focus-color);outline-offset:2px}.audio-thumbnail__image{width:100%;height:100%;object-fit:cover;display:block;filter:saturate(.95) contrast(1.05)}.audio-thumbnail__overlay{position:absolute;inset:0;display:grid;place-content:center;gap:.5rem;background:linear-gradient(180deg,rgb(0 0 0 / 22%),rgb(0 0 0 / 54%))}.audio-thumbnail__play{width:3rem;height:3rem;border-radius:50%;display:grid;place-content:center;background:rgb(255 255 255 / 90%);color:#121212;font-size:1rem;margin-inline:auto;line-height:1}.audio-thumbnail__text{font-family:var(--activity-ui-font-family);font-size:.9rem;letter-spacing:.03em;text-transform:uppercase;font-weight:var(--activity-support-font-weight)}.audio-player-mount,.audio-player-mount 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