:root{font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;color-scheme:dark;font-size:14px;font-weight:400}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default}button{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #ad9bff;outline-offset:4px}button,input{border:0}button{background:none}h1,h2,h3,p{margin:0}img{display:block;max-width:100%}[hidden]{display:none!important}.eyebrow{font-size:10px;font-weight:700;letter-spacing:1.9px;color:#a6a1ba}.btn{display:inline-flex;align-items:center;justify-content:center;gap:25px;border-radius:9px;padding:13px 20px;font-weight:650;font-size:13px;transition:transform .16s,background .16s}.btn:hover{transform:translateY(-2px)}.primary{background:#8a79f9;color:#fff}.secondary{background:#252939;border:1px solid #36394d}.brand{display:flex;align-items:center;gap:11px;font-weight:750;font-size:15px;letter-spacing:-.3px}.logo{display:grid;place-items:center;flex-shrink:0;width:36px;height:39px;background:#7968ed;border-radius:10px;font-size:27px;line-height:1;color:#fff;font-family:Georgia,serif}.brand-sub{display:block;font-size:8px;color:#8c8d9f;letter-spacing:2px;font-weight:500;margin-top:5px}.arcade-mode{background:#10131e;color:#f6f6fc}.sidebar{position:fixed;inset:0 auto 0 0;width:220px;border-right:1px solid #232634;background:#141722;padding:30px 22px;z-index:10;display:flex;flex-direction:column}.sidebar .brand{font-size:15px;letter-spacing:1px;gap:10px}.sidebar .logo{width:33px;height:38px}.nav-label{font-size:9px;letter-spacing:1.8px;color:#777d95;font-weight:600;margin:49px 13px 16px}.nav-btn{display:flex;align-items:center;gap:13px;text-align:left;width:100%;padding:13px 14px;border-radius:8px;font-size:12px;color:#9da2b7;margin-bottom:6px}.nav-btn>span{font-size:20px;line-height:20px;width:20px;text-align:center}.nav-btn:hover{background:#202333;color:#ddd}.nav-btn.active{background:#2b2547;color:#b4a5ff}.nav-btn small{margin-left:auto;border:1px solid #424057;border-radius:4px;padding:1px 5px;font-size:10px}.sidebar-bottom{margin-top:auto}.local-note{padding:15px 12px 23px;font-size:11px;color:#c4c7d6}.status-dot,.local-pill i{display:inline-block;width:5px;height:5px;background:#89d7b1;border-radius:50%;margin-right:7px}.local-note p{font-size:10px;line-height:1.9;margin-top:9px;color:#787f98}.sidebar-bottom .nav-btn{border-top:1px solid #292c3a;border-radius:0;padding-top:22px;font-size:11px}.main-shell{margin-left:220px}.arcade-header{height:78px;border-bottom:1px solid #232634;display:flex;align-items:center;justify-content:space-between;padding:0 40px}.header-location{color:#a4a9bc;font-size:11px}.header-location .desktop-only{margin-left:8px;color:#8d7bcf}.header-right{display:flex;align-items:center;gap:25px}.local-pill{font-size:8px;font-weight:600;letter-spacing:1px;color:#979cb1}.avatar{height:30px;width:30px;display:grid;place-items:center;background:#28273d;border:1px solid #4a4166;border-radius:50%;font-size:11px;color:#c5b8fb}.library{max-width:1500px;margin:auto;padding:36px 40px}.page-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:29px}.page-title h1{font-size:32px;letter-spacing:-1.1px;margin:10px 0 9px;font-weight:730}.page-title p{font-size:12px;color:#969db3}.collection-count{font-size:30px;color:#b0a2f8;padding-right:5px;text-align:center;font-weight:650}.collection-count small{display:block;font-size:8px;letter-spacing:2px;margin-top:3px;color:#7a7f95}.featured{display:grid;grid-template-columns:1.65fr 1fr;gap:18px;height:324px;margin-bottom:35px}.hero-feature{position:relative;overflow:hidden;border-radius:14px;background:#2a2b45;isolation:isolate}.hero-feature>img{width:100%;height:100%;object-fit:cover;object-position:70% 55%;transition:transform .5s}.hero-feature:hover>img{transform:scale(1.035)}.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,#171b33fa 0%,#171b33dd 25%,#171b3355 62%,transparent)}.hero-copy{position:absolute;inset:28px auto 25px 29px;display:flex;flex-direction:column;align-items:start}.feature-tag{font-size:8px;letter-spacing:1.4px;padding:7px 9px;border-radius:4px;background:#ffffff14;border:1px solid #ffffff20;color:#efdeba;font-weight:600}.hero-copy h2{font-size:38px;line-height:1.07;letter-spacing:-1px;margin-top:18px}.hero-copy p{font-size:10px;color:#d8d6e3;margin-top:13px}.light-btn{background:#f1ecff;color:#242034;font-size:11px;padding:11px 16px;margin-top:auto;gap:28px}.hero-index{position:absolute;right:20px;bottom:20px;font-size:9px;letter-spacing:1px;color:#fff9}.side-features{display:grid;grid-template-rows:1fr 1fr;gap:16px}.mini-feature{overflow:hidden;border:1px solid #303047;background:#1c2133;border-radius:12px;position:relative;display:flex;align-items:center}.mini-feature>img{width:45%;height:100%;object-fit:cover;opacity:.8;-webkit-mask-image:linear-gradient(90deg,#000 60%,transparent);mask-image:linear-gradient(90deg,#000 60%,transparent)}.mini-feature>div{padding:14px 17px 14px 0;flex:1;position:relative;margin-left:-5px}.mini-feature .eyebrow{font-size:7px;letter-spacing:1.1px;color:#aaa2ce}.mini-feature h3{font-size:20px;letter-spacing:-.5px;margin:11px 0 8px}.mini-feature p{font-size:9px;color:#959db5}.mini-feature p span{float:right;color:#d2c6ff;font-size:16px}.mini-feature:hover{background:#272b43}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:20px}.section-heading h2,.recent-strip h2{font-size:19px;letter-spacing:-.4px;font-weight:650}.section-heading h2>span{font-size:9px;letter-spacing:0;color:#8f94ab;font-weight:400;background:#232635;margin-left:10px;padding:5px 8px;border-radius:5px;vertical-align:middle}.search-box{display:flex;align-items:center;border:1px solid #2d3142;background:#191d2b;border-radius:8px;padding:0 10px;width:260px;height:38px;gap:8px;color:#828aa4}.search-box>span{font-size:24px}.search-box input{width:100%;min-width:0;outline:none!important;background:transparent;color:#e9e8f4;font-size:11px;height:100%}.search-box:focus-within{border-color:#9f8be9}.search-box input::placeholder{color:#8a90a8}.search-box kbd{font-size:10px;border:1px solid #363a4c;padding:1px 5px;border-radius:3px}.categories{display:flex;align-items:center;gap:7px;margin-bottom:21px;flex-wrap:wrap}.chip{color:#969eb5;background:transparent;padding:8px 13px;font-size:10px;border:1px solid #2c3041;border-radius:6px;transition:background .15s}.chip:hover{background:#27273c}.chip.selected{background:#8a76ee;border-color:#8a76ee;color:#fff}.catalog-note{font-size:9px;color:#777e95;margin-left:auto}.game-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px 18px}.game-card{min-width:0;position:relative;transition:transform .2s}.game-card:hover{transform:translateY(-4px)}.thumbnail{aspect-ratio:1.6;border:1px solid #ffffff12;background:#202438;border-radius:10px;overflow:hidden;position:relative}.thumbnail img{height:100%;width:100%;object-fit:cover;transition:transform .3s}.game-card:hover img{transform:scale(1.05)}.thumbnail:after{content:"";position:absolute;inset:50% 0 0;background:linear-gradient(transparent,#090f2070)}.player-badge{position:absolute;bottom:9px;left:9px;font-size:8px;padding:4px 6px;color:#eee;background:#111729ac;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border-radius:3px;z-index:1}.card-play{position:absolute;left:50%;top:50%;display:grid;place-items:center;border-radius:50%;width:40px;height:40px;background:#fff;color:#282035;opacity:0;transform:translate(-50%,-50%);z-index:2;transition:opacity .2s}.game-card:hover .card-play,.game-link:focus-visible .card-play{opacity:1}.card-info{padding:13px 0 0}.card-info h3{font-size:13px;font-weight:650;letter-spacing:-.1px;padding-right:23px}.card-info p{font-size:9px;color:#9097ad;margin-top:7px}.card-info p span{padding:0 6px;color:#51586d}.favorite{position:absolute;right:3px;bottom:18px;font-size:21px;color:#9b9fb5;line-height:25px;width:28px;height:28px;border-radius:50%}.favorite:hover{color:#d0b8ff;background:#323047}.favorite.saved,.saved{color:#bd9fff}.empty-state{grid-column:1/-1;min-height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;border:1px dashed #36394c;border-radius:12px;color:#969db6}.empty-state>span{font-size:40px;color:#b5a2fb}.empty-state h3{color:#e3deed}.empty-state p{font-size:12px}.library-note{margin-top:35px;padding:20px 0 0;border-top:1px solid #272a3b;display:flex;align-items:center;gap:12px}.library-note>span{font-size:27px;color:#a899e9}.library-note p{color:#7f879e;font-size:10px;line-height:1.9}.library-note b{color:#bcc0d2;font-weight:500}.library-note a{margin-left:auto;white-space:nowrap;font-size:9px;color:#a89acc}.arcade-footer{border-top:1px solid #232634;padding:22px 40px;display:flex;justify-content:space-between;color:#737b93;font-size:9px;gap:15px}.arcade-footer b{padding:0 10px;color:#56576e}.recent-strip{margin:0 0 30px}.recent-strip h2{font-size:15px;margin-bottom:15px}.recent-strip h2 span{color:#8f80c5;margin-left:5px}.recent-strip>div{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.recent-strip a{display:flex;align-items:center;border:1px solid #303245;background:#1a1e2b;border-radius:8px;overflow:hidden;font-size:10px;gap:10px}.recent-strip img{width:58px;height:56px;object-fit:cover}.recent-strip small{display:block;color:#9691b7;font-size:8px;margin-top:5px}.player-page{max-width:1350px;margin:auto;padding:25px 40px}.back-link{color:#a0a5bc;font-size:11px;padding:0 0 24px}.back-link:hover{color:#bca4ff}.player-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}.player-title h1{font-size:30px;letter-spacing:-1px;margin-top:7px}.player-title .eyebrow{font-size:8px}.player-title .eyebrow b{padding:0 8px;color:#55596c}.player-stage{aspect-ratio:16/9;background:#0b0f19;border:1px solid #34364a;border-radius:12px;position:relative;overflow:hidden;max-height:75vh}.player-stage:fullscreen{width:100vw;height:100vh;max-height:none;aspect-ratio:auto;border:0;border-radius:0}#frame-slot,#frame-slot iframe{width:100%;height:100%;border:0;display:block}.loading,.player-error{position:absolute;inset:0;z-index:2;background:#121625;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:17px;font-size:12px;color:#b6b3ca}.player-error h2{color:#fff}.player-error>span{font-size:40px;color:#b095ff}.spinner{width:26px;height:26px;border:2px solid #383348;border-top-color:#b498ff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.player-toolbar{display:flex;align-items:center;justify-content:space-between;margin:9px 0}.player-toolbar>div{display:flex;gap:10px}.focus-hint{font-size:9px;color:#868fa8}.tool-btn{font-size:19px;background:#212537;border:1px solid #34364b;border-radius:6px;padding:6px 12px}.tool-btn span{font-size:10px;vertical-align:middle;margin-left:4px}.tool-btn:hover{background:#35304d}.player-status{font-size:11px;color:#d3bdff;min-height:18px}.game-details{display:grid;grid-template-columns:1.7fr 1fr;gap:35px;margin-top:12px;padding-top:22px;border-top:1px solid #292b3e}.game-details h2{font-size:17px;margin-bottom:10px}.game-details p{font-size:11px;line-height:1.9;color:#969eb5}.controls{display:flex;gap:8px;flex-wrap:wrap;margin-top:15px}.controls span{font-size:10px;color:#bdbbd1;background:#202436;border:1px solid #34374e;border-radius:6px;padding:8px 10px}.game-details aside{padding-left:25px;border-left:1px solid #2b2e41}.game-details aside .eyebrow{font-size:8px}.game-details aside p{margin-top:8px}.game-details small{display:block;color:#788198;font-size:9px;line-height:1.8;margin-top:10px}.game-details aside a{font-size:10px;color:#b6a2ed;display:block;margin-top:12px}.not-found{padding:80px 40px;min-height:80vh}.not-found h1{margin-bottom:25px}.math-mode{color-scheme:light;background:#f6f8fc;color:#23334f}.math-header{display:flex;align-items:center;justify-content:space-between;padding:28px 6%;border-bottom:1px solid #e4e9f2}.math-header .logo{background:#4979cf}.math-header-note{font-size:11px;color:#75829a}.login-main{min-height:calc(100vh - 164px);max-width:1200px;margin:auto;display:grid;grid-template-columns:1.3fr 1fr;align-items:center;gap:100px;padding:50px 45px}.blue{color:#4b76be}.math-intro h1{font-size:43px;line-height:1.2;letter-spacing:-1.6px;font-weight:700;margin:18px 0}.math-intro em{font-style:normal;color:#4d7cce}.math-intro>p{font-size:14px;line-height:1.8;color:#76849a}.math-art{position:relative;height:225px;margin:30px 0 20px}.graph{position:absolute;inset:12px 20px 0 0;border:1px solid #d9e3f1;border-radius:12px;background:linear-gradient(#d6e2f03a 1px,transparent 1px),linear-gradient(90deg,#d6e2f03a 1px,transparent 1px),#edf3fc;background-size:23px 23px}.graph svg{width:100%;height:100%}.axis-label{position:absolute;left:10%;top:0;font-family:Georgia,serif;color:#89a3c8}.equation{position:absolute;right:20px;bottom:12px;font-size:12px;font-family:Georgia,serif;color:#6c89b6}.math-float{position:absolute;right:-8px;top:-4px;background:#fff;border:1px solid #dfe7f2;box-shadow:0 5px 25px #243e7110;border-radius:8px;padding:14px 19px;font:24px Georgia,serif;color:#527ab8;transform:rotate(4deg)}.math-float>span{font-size:18px;border-top:1px solid #527ab8}.subjects{display:flex;gap:25px;justify-content:space-between;font-size:9px;color:#7293c8}.subjects b{font-size:10px;font-weight:500;color:#728199;margin-left:7px}.login-card{background:#fff;border:1px solid #e0e7f0;box-shadow:0 15px 50px #243e7109;border-radius:16px;padding:36px}.welcome-icon{width:43px;height:43px;display:grid;place-items:center;background:#edf2fc;color:#4d7bc7;font:29px Georgia,serif;border-radius:11px;margin-bottom:22px}.login-card h2{font-size:24px;letter-spacing:-.7px;margin-bottom:10px}.login-card>p{font-size:12px;color:#7f8a9d;margin-bottom:29px}.login-card label{display:block;font-size:11px;font-weight:600;margin-bottom:9px}.login-card input{width:100%;background:#fbfcfe;border:1px solid #d7dfec;border-radius:8px;height:45px;padding:0 13px;color:#23334f;font-size:12px}.login-card input::placeholder{color:#99a4b8}.login-card input[aria-invalid=true]{border-color:#c76464}.login-error{min-height:31px;font-size:10px;line-height:1.6;color:#ad4444;padding:6px 0}.blue-btn{background:#4475ce;width:100%;color:#fff;justify-content:space-between;font-size:12px}.blue-btn:hover{background:#3264c0}.login-note{margin-top:26px;padding-top:20px;border-top:1px solid #edf0f6;display:flex;gap:12px;align-items:center;color:#8694ac}.login-note>span{font-size:24px;color:#839ac0}.login-note p{font-size:10px;line-height:1.8}.math-footer{display:flex;align-items:center;justify-content:space-between;padding:24px 6%;border-top:1px solid #e2e8f2;color:#8a96aa;font-size:10px}@media(min-width:1550px){.game-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.featured{height:370px}.hero-copy h2{font-size:46px}}@media(max-width:1150px){.sidebar{width:185px;padding:27px 15px}.sidebar .brand{font-size:12px;gap:8px}.brand-sub{font-size:7px;letter-spacing:1.5px}.main-shell{margin-left:185px}.library,.player-page,.arcade-header,.arcade-footer{padding-left:27px;padding-right:27px}.featured{grid-template-columns:1.5fr 1fr;height:290px}.hero-copy{inset:24px auto 24px 24px}.hero-copy h2{font-size:33px}.mini-feature h3{font-size:17px}.mini-feature>img{width:38%}.mini-feature p{line-height:1.6;font-size:8px}.game-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.login-main{gap:60px}.math-intro h1{font-size:36px}.login-card{padding:28px}.catalog-note{display:none}}@media(max-width:800px){.sidebar{position:relative;width:auto;height:auto;padding:18px 22px;flex-direction:row;align-items:center;justify-content:space-between;gap:20px;border-right:0;border-bottom:1px solid #272c3b;flex-wrap:wrap}.sidebar .brand{font-size:14px}.sidebar nav{display:flex;gap:6px;order:3;width:100%}.nav-label,.local-note{display:none}.nav-btn{width:auto;margin:0;padding:8px 11px;font-size:11px}.nav-btn>span{font-size:17px}.sidebar-bottom{margin-top:0;margin-left:auto}.sidebar-bottom .nav-btn{padding:0;border:0;font-size:10px}.sidebar-bottom .nav-btn>span{display:none}.main-shell{margin:0}.arcade-header{height:53px}.library{padding-top:26px}.featured{height:300px}.page-title h1{font-size:28px}.login-main{gap:30px;padding:40px 30px}.math-intro h1{font-size:30px}.math-intro>p{font-size:12px}.subjects{gap:8px}.subjects b{font-size:9px;display:block;margin:5px 0}.math-header{padding:20px 30px}.math-header-note{display:none}.login-card{padding:25px}.math-art{height:170px}.game-details{gap:20px}.game-details aside{padding-left:18px}.recent-strip>div{grid-template-columns:repeat(2,1fr)}}@media(max-width:580px){.library,.player-page{padding:24px 18px}.arcade-header,.arcade-footer{padding-left:18px;padding-right:18px}.local-pill{font-size:7px}.header-right{gap:12px}.page-title h1{font-size:26px}.page-title p{line-height:1.7;font-size:11px;max-width:260px}.page-title .eyebrow{font-size:8px}.collection-count{font-size:26px}.featured{height:auto;grid-template-columns:1fr}.hero-feature{height:280px}.hero-feature>img{object-position:70%}.hero-copy h2{font-size:36px}.side-features{grid-template-columns:1fr 1fr;grid-template-rows:1fr;gap:12px}.mini-feature{height:145px;align-items:end}.mini-feature>img{position:absolute;inset:0;width:100%;height:100%;-webkit-mask-image:linear-gradient(#0008,transparent);mask-image:linear-gradient(#0008,transparent);opacity:.7}.mini-feature>div{margin:0;padding:13px;width:100%}.mini-feature h3{font-size:18px;margin:9px 0 5px}.mini-feature p{font-size:8px}.mini-feature .eyebrow{font-size:6px;letter-spacing:.9px}.section-heading{align-items:start;flex-direction:column;gap:17px}.search-box{width:100%}.section-heading h2{font-size:19px}.categories{gap:6px}.chip{padding:8px 10px;font-size:9px}.game-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:23px 13px}.card-info h3{font-size:12px}.card-info p{font-size:8px}.player-badge{font-size:7px}.favorite{font-size:18px;right:0;bottom:17px}.library-note{align-items:start}.library-note p{font-size:9px}.library-note a{font-size:8px}.arcade-footer{font-size:8px;flex-direction:column}.sidebar{padding:15px 18px;gap:18px}.sidebar nav{gap:3px}.nav-btn{padding:8px 10px;gap:8px;font-size:10px}.nav-btn small{display:none}.sidebar-bottom .nav-btn{font-size:9px}.player-title h1{font-size:26px}.player-title{margin-bottom:16px}.player-stage{border-radius:8px}.player-toolbar{align-items:start;gap:12px}.focus-hint{font-size:8px;line-height:1.8;max-width:155px}.tool-btn{padding:5px 9px}.tool-btn span{display:none}.game-details{grid-template-columns:1fr}.game-details aside{border-left:0;border-top:1px solid #2b2e41;padding:18px 0 0}.controls span{font-size:9px}.login-main{grid-template-columns:1fr;padding:35px 25px;gap:32px;max-width:450px;min-height:0}.math-intro h1{font-size:33px}.math-intro>p{font-size:11px}.math-art,.subjects{display:none}.login-card{padding:27px}.math-header{padding:20px 25px}.math-header .brand{font-size:14px}.math-footer{padding:22px 25px;gap:10px;font-size:8px}.login-card h2{font-size:23px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}.inline-icon{display:inline-block;width:1.15em;height:1.15em;vertical-align:middle;flex-shrink:0}.tool-btn>.inline-icon{width:19px;height:19px}.mini-feature p>span{line-height:1}.arcade-skip{position:fixed;top:-80px;left:235px;z-index:40;background:#b9a7ff;color:#1c1730;padding:12px 18px;border-radius:7px;font-size:12px}.arcade-skip:focus{top:15px}.sidebar-picks{margin-top:33px}.sidebar-picks>.nav-label{display:block;margin:0 13px 13px}.sidebar-picks>button{display:flex;align-items:center;gap:12px;width:100%;text-align:left;color:#7f879f;font-size:10px;padding:10px 14px;border-radius:7px;transition:background .2s,color .2s}.sidebar-picks>button>span{font-size:16px;width:19px;text-align:center;color:#8b7fb2}.sidebar-picks>button:hover{color:#c7bedf;background:#211e33}.header-location b{font-weight:500;color:#b4abc9}.library-tools{display:flex;align-items:center;gap:10px}.sort-box select{height:38px;border:1px solid #2d3142;border-radius:7px;background:#191d2b;color:#939ab3;font:10px inherit;padding:0 27px 0 12px;max-width:160px}.search-box{width:275px}.single-feature{grid-template-columns:1fr}.hero-feature>.hero-shade{background:linear-gradient(90deg,#121525f7,#15142cce,#15142c66 60%,#15142c11)}.hero-feature>img{object-position:center;image-rendering:auto}.hero-copy h2{font-size:41px;letter-spacing:-1.2px}.hero-copy p{max-width:220px;line-height:1.7}.mini-feature{background:#1b1e31}.mini-feature>img{opacity:.85;-webkit-mask-image:linear-gradient(90deg,#000 45%,transparent);mask-image:linear-gradient(90deg,#000 45%,transparent)}.mini-feature h3{line-height:1.2;font-size:19px}.mini-feature p{line-height:1.6}.requested-badge{position:absolute;top:9px;left:9px;background:#1c1729ad;color:#dbcaef;font-size:6px;font-weight:650;letter-spacing:1px;padding:5px 6px;border-radius:4px;z-index:2;border:1px solid #c5abff33;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.game-card{animation:arcade-card-in .4s both;animation-delay:var(--card-delay,0ms)}.game-grid .thumbnail{background:linear-gradient(130deg,#28233f,#172d3c);box-shadow:0 4px 15px #06091615}.game-card .thumbnail img{transition:transform .45s cubic-bezier(.2,.7,.2,1),filter .4s}.game-card:hover .thumbnail img{transform:scale(1.07);filter:saturate(1.08)}.game-card:hover .card-info h3{color:#d0befa}.game-card .card-play{transform:translate(-50%,-40%) scale(.8);transition:opacity .2s,transform .25s}.game-card:hover .card-play,.game-link:focus-visible .card-play{transform:translate(-50%,-50%) scale(1)}.game-card:focus-within{z-index:2}.game-card .favorite{transition:transform .15s,color .15s,background .15s}.game-card .favorite:active{transform:scale(1.25)}.game-card .favorite.saved{animation:heart-pop .28s}.thumbnail .fallback-art{object-fit:cover;opacity:.55}.requested-pending{margin-top:34px;border:1px solid #2c2c40;border-radius:9px;background:#171b28;padding:0 19px}.requested-pending summary{font-size:10px;color:#a6a0b9;padding:16px 0;cursor:pointer;line-height:1.8}.requested-pending summary>span{float:right;color:#a995d2;font-size:17px}.requested-pending[open] summary{border-bottom:1px solid #2c2c40}.requested-pending>p{font-size:10px;color:#858ca4;line-height:1.8;margin:15px 0}.requested-pending ul{list-style:none;padding:0;margin:0 0 17px;display:grid;gap:14px;grid-template-columns:1fr 1fr}.requested-pending li b{font-size:10px;color:#b9b0cd;font-weight:550}.requested-pending li span{display:block;font-size:9px;line-height:1.8;margin-top:4px;color:#777f98}.player-byline{font-size:10px;color:#858ba3;margin-top:10px}.player-byline>span{padding:0 7px;color:#534d6a}.player-stage{aspect-ratio:var(--game-ratio,1.7778);max-height:75vh}.player-stage:fullscreen{aspect-ratio:auto}.loading>b{font-weight:500}.loading>small{font-size:10px;color:#7e859f;max-width:280px;text-align:center;line-height:1.9}.player-error p{font-size:11px;max-width:400px;line-height:1.9;text-align:center;padding:0 20px}.player-help{background:#1f2234;border:1px solid #3a3550;border-radius:8px;padding:16px 18px;margin:10px 0 20px;color:#a49bb7}.player-help>b{font-size:11px;font-weight:600;color:#c5b5df}.player-help>p{font-size:10px;line-height:1.8;margin-top:7px}.not-found>.eyebrow{display:block;margin-bottom:18px}.not-found>p{font-size:12px;color:#979bb1;line-height:1.9;max-width:550px;margin:15px 0 25px}.library>.page-title{animation:arcade-card-in .45s both}.featured{animation:arcade-card-in .5s .05s both}.arcade-mode .main-shell{background:radial-gradient(ellipse at 80% -10%,#47386917,transparent 45%),#10131e}.arcade-mode .loading .spinner{box-shadow:0 0 25px #9c7dff18}@keyframes arcade-card-in{0%{opacity:0;translate:0 12px}to{opacity:1;translate:0 0}}@keyframes heart-pop{0%{scale:1}55%{scale:1.3}to{scale:1}}@media(max-width:1150px){.library-tools{gap:7px}.search-box{width:215px}.sort-box select{max-width:122px;font-size:9px;padding-left:9px;padding-right:20px}.hero-copy h2{font-size:35px}.mini-feature h3{font-size:16px}.section-heading h2{font-size:17px}}@media(max-width:900px){.section-heading{flex-wrap:wrap}.library-tools{flex:1;justify-content:end}.search-box{width:205px}.sort-box select{max-width:120px}.sidebar-picks{margin-top:25px}.sidebar-picks>button{font-size:9px;padding-left:11px}}@media(max-width:800px){.sidebar-picks{display:none}.arcade-skip{left:18px}.library-tools{flex:0 1 auto}.search-box{width:230px}.sort-box select{max-width:135px}.player-byline{font-size:9px;line-height:1.8}.requested-pending ul{gap:13px}.requested-pending li span{font-size:8px}.focus-hint{line-height:1.8}.player-toolbar .tool-btn{padding:6px 10px}}@media(max-width:580px){.library-tools{width:100%;gap:8px}.library-tools .search-box{flex:1;width:auto}.sort-box{width:115px}.sort-box select{width:100%;max-width:none;font-size:9px;height:38px}.search-box input{font-size:10px}.hero-copy h2{font-size:37px}.hero-copy p{max-width:215px;font-size:9px}.mini-feature h3{font-size:17px}.mini-feature>img{-webkit-mask-image:linear-gradient(#0009,transparent);mask-image:linear-gradient(#0009,transparent)}.requested-pending{padding:0 14px}.requested-pending summary{font-size:9px;padding:13px 0}.requested-pending ul{grid-template-columns:1fr}.requested-pending li b{font-size:10px}.requested-pending li span{font-size:9px}.requested-badge{font-size:5px;top:7px;left:7px;padding:4px 5px}.player-byline{font-size:8px;max-width:240px}.player-title h1{font-size:24px}.player-stage{max-height:65vh}.player-stage:fullscreen{max-height:none}.player-toolbar>div{gap:6px}.player-toolbar .tool-btn{padding:5px 8px;font-size:17px}.player-toolbar .focus-hint{font-size:7px;max-width:170px}.player-status{font-size:9px;line-height:1.8;min-height:12px}.loading>small{font-size:8px;max-width:225px}.loading>b{font-size:11px}.player-error h2{font-size:17px}.player-error p{font-size:9px}.library-note{gap:9px}.library-note p{line-height:1.8}.library-note b{display:block}.header-location{font-size:9px}.local-pill{font-size:6px}}@media(prefers-reduced-motion:reduce){.arcade-mode *{animation:none!important;transition:none!important}}.learning-mode{--learn-ink:#253a40;--learn-muted:#78858a;--learn-blue:#536fa3;--learn-line:#e4e9e5;background:#fafbf8;color:var(--learn-ink);color-scheme:light;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.learning-mode button,.learning-mode input,.learning-mode select{font:inherit}.learning-mode button{color:inherit}.learning-mode a:focus-visible,.learning-mode button:focus-visible,.learning-mode select:focus-visible,.learning-mode input:focus-visible{outline:3px solid #608aaf;outline-offset:5px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.learn-skip{position:fixed;left:15px;top:-70px;z-index:100;background:#fff;padding:15px;border-radius:7px}.learn-skip:focus{top:15px}.learn-container{max-width:1260px;margin:auto;padding-left:60px;padding-right:60px}.learn-header{height:94px;display:flex;align-items:center;justify-content:space-between;gap:30px;padding:0 max(5%,calc((100vw - 1140px)/2));border-bottom:1px solid #e8ede7;background:#fafbf8ed;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);position:sticky;top:0;z-index:20}.learn-brand{display:flex;align-items:center;gap:11px;color:#2e464d;font-size:15px;letter-spacing:-.4px;font-weight:730;white-space:nowrap}.learn-mark{width:38px;height:40px;border:1px solid #a3b9ac;border-radius:10px;background:#e8eee7;display:grid;place-items:center;color:#547360;font:29px Georgia,serif}.learn-brand-sub{display:block;font-size:8px;letter-spacing:3.1px;margin-top:4px;font-weight:500;color:#89978c}.learn-header nav{display:flex;gap:33px;font-size:11px;color:#7b8989}.learn-header nav a{position:relative;padding:12px 0}.learn-header nav a:after{content:"";position:absolute;left:0;bottom:5px;width:0;height:1px;background:#647f71;transition:width .25s}.learn-header nav a:hover{color:#304f4a}.learn-header nav a:hover:after{width:100%}.learn-login{border:1px solid #d2dcd3;background:#fff;border-radius:7px;padding:10px 18px;font-weight:650!important;font-size:11px!important;transition:background .2s,transform .2s}.learn-login span{padding-left:17px;color:#729181}.learn-login:hover{background:#e8eee7;transform:translateY(-2px)}.learn-hero{display:grid;grid-template-columns:1.05fr 1fr;gap:65px;padding-top:85px;padding-bottom:80px;align-items:center;min-height:590px}.learn-overline{font-size:8px;letter-spacing:1.8px;font-weight:700;color:#7a8d83;display:inline-flex;align-items:center;gap:8px}.learn-overline i{width:5px;height:5px;background:#729581;border-radius:50%}.learn-hero h1{font-size:65px;font-weight:660;line-height:1.08;letter-spacing:-3.6px;position:relative;margin:24px 0 28px}.learn-hero h1>span{font-family:Georgia,Times New Roman,serif;font-style:italic;font-weight:400;color:#678276}.learn-hero h1>svg{position:absolute;bottom:-11px;left:112px;width:244px;height:14px;color:#c6b88d;transform:rotate(-2deg)}.learn-hero-copy>p{font-size:13px;line-height:1.95;max-width:365px;color:#79878b}.learn-hero-actions{display:flex;gap:28px;align-items:center;margin:27px 0 33px}.learn-button{display:inline-flex;justify-content:center;align-items:center;gap:22px;padding:13px 20px;border-radius:7px;font-size:11px;font-weight:650;transition:transform .2s,background .2s,box-shadow .2s;white-space:nowrap}.learn-button svg,.learn-text-link svg{width:17px;height:17px;flex-shrink:0}.learn-primary{background:#385e53;color:#fff!important;box-shadow:0 4px 10px #2d5e5010}.learn-primary:hover{background:#2d5147;box-shadow:0 7px 17px #294b4723;transform:translateY(-2px)}.learn-text-link{font-size:10px;font-weight:600;display:inline-flex;align-items:center;gap:12px;color:#647c73}.learn-text-link:hover{color:#284a40}.learn-text-link span{font-size:15px}.learn-hero-proof{display:flex;gap:15px;align-items:center;font-size:8px;color:#8c9694}.learn-hero-proof b{color:#5b7267;font-size:10px;font-weight:650}.learn-hero-proof i{width:3px;height:3px;border-radius:50%;background:#c7cfc7}.learn-hero-visual{position:relative;min-height:360px;padding:27px 17px 25px 10px;isolation:isolate}.learn-grid-art{position:absolute;inset:-25px -30px -35px -20px;z-index:-2;background-image:linear-gradient(#d9e2da66 1px,transparent 1px),linear-gradient(90deg,#d9e2da66 1px,transparent 1px);background-size:28px 28px;-webkit-mask-image:radial-gradient(ellipse,#000 25%,transparent 72%);mask-image:radial-gradient(ellipse,#000 25%,transparent 72%)}.learn-challenge{position:relative;border:1px solid #dce4dc;border-radius:13px;background:#fff;box-shadow:0 20px 50px #344e4410;transform:rotate(-2deg);z-index:1;transition:transform .5s}.learn-hero-visual:hover .learn-challenge{transform:rotate(0)}.learn-challenge-head{border-bottom:1px solid #edf0ea;padding:18px 23px;display:flex;align-items:center;gap:11px}.learn-challenge-icon{display:grid;place-items:center;width:29px;height:29px;border-radius:7px;background:#edf0e6;color:#7b8d6a;font:italic 24px Georgia,serif}.learn-challenge-head>span:nth-child(2){font-size:7px;letter-spacing:1.2px;color:#73847b;font-weight:650}.learn-challenge-head small{display:block;font-size:9px;letter-spacing:0;color:#a2aaa2;font-weight:400;margin-top:4px}.learn-dots{margin-left:auto;color:#c6cfc6;letter-spacing:3px;font-size:10px}.learn-challenge-body{padding:28px 26px 22px;text-align:center}.learn-small-label{font-size:8px;color:#87968b;letter-spacing:1.2px;font-weight:600}.learn-equation{font:40px Georgia,serif;letter-spacing:1px;margin:22px 0 14px;color:#3c514c}.learn-equation>span{color:#79957b;font-style:italic}.learn-challenge-body>p{color:#a1aaa2;font-size:11px}.learn-warmup-options{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:23px 0 18px}.learn-warmup-options button{border:1px solid #e0e7de;border-radius:6px;background:#fcfdfa;padding:10px 5px;font:16px Georgia,serif!important;transition:transform .2s,background .2s}.learn-warmup-options button:hover{transform:translateY(-3px);border-color:#a4b4a1;background:#f1f5ed}.learn-warmup-options button.correct{border-color:#6b9b7b;background:#e6f1e7}.learn-warmup-options button.incorrect{border-color:#c89080;background:#f8ebe4}.learn-warmup-feedback{font-size:8px;line-height:1.6;min-height:26px;color:#9ca79e}.learn-warmup-feedback.success{color:#55816b}.learn-floating{position:absolute;background:#fff;border:1px solid #e1e5db;border-radius:9px;box-shadow:0 6px 25px #45563b09;z-index:3}.learn-floating-top{top:-7px;right:-18px;transform:rotate(7deg);padding:12px 17px;font:16px Georgia,serif;color:#9a946f;animation:learn-float 8s ease-in-out infinite}.learn-floating-top span{color:#c9b58b;font-size:18px;padding-left:17px}.learn-floating-bottom{bottom:-8px;left:-18px;display:flex;gap:12px;align-items:center;transform:rotate(3deg);padding:12px 15px;animation:learn-float 9s ease-in-out infinite reverse}.learn-mini-check{display:grid;place-items:center;width:29px;height:29px;border-radius:50%;background:#edf3e9;color:#789273;font-size:12px}.learn-floating-bottom>span:nth-child(2){font-size:10px;font-weight:600;color:#788673}.learn-floating-bottom small{display:block;font-size:8px;font-weight:400;color:#a4ac9d;margin-top:5px}.learn-floating-bottom>svg{width:54px;height:28px;margin-left:10px}.learn-orbit-circle{position:absolute;z-index:-1;right:-26px;bottom:22px;width:90px;height:90px;border:1px solid #dbd5b7;border-radius:50%}.learn-art-plus{position:absolute;top:-30px;left:22px;color:#c1c9b9;font-size:28px;font-weight:300}.learn-divider{display:flex;align-items:center;gap:25px;font-size:9px;padding-top:23px;padding-bottom:23px;border-top:1px solid #e3e9e0;border-bottom:1px solid #e3e9e0;color:#9aa499}.learn-divider>span:first-child{font-weight:600;color:#667d6b;white-space:nowrap}.learn-divider>p{font-size:9px;color:#9aa499}.learn-divider-symbols{margin-left:auto;font:19px Georgia,serif;color:#bcc6b7;white-space:nowrap}.learn-subjects{padding-top:69px;padding-bottom:76px;scroll-margin-top:120px}.learn-section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}.learn-section-head h2,.learn-flash-intro h2,.learn-method h2{font-size:34px;line-height:1.2;letter-spacing:-1.1px;font-weight:600;margin-top:15px}.learn-section-head>p{font-size:10px;line-height:1.9;color:#97a099;margin-bottom:5px}.learn-topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.learn-topic-card{text-align:left;border:1px solid #e0e6dd;background:#fff;border-radius:11px;padding:23px 24px 0;overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s}.learn-topic-card:hover{transform:translateY(-5px);box-shadow:0 12px 25px #5061460a;border-color:#b9cab6}.learn-topic-card>div:first-child{display:flex;align-items:center;justify-content:space-between}.learn-topic-icon{width:38px;height:38px;background:color-mix(in srgb,var(--topic-color) 10%,white);color:var(--topic-color);display:grid;place-items:center;border-radius:9px;font:24px Georgia,serif}.learn-topic-number{font-size:8px;color:#bec7b9}.learn-topic-card h3{font-size:15px;font-weight:650;margin:19px 0 9px;color:#3f544c}.learn-topic-card>p{font-size:10px;line-height:1.85;color:#95a093;min-height:38px}.learn-topic-footer{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #edf0e9;margin-top:20px;padding:13px 0 14px;gap:15px}.learn-topic-footer>span{font:11px Georgia,serif;color:#a9ac96}.learn-topic-footer svg{width:16px;height:16px;color:#b4c0ac;transition:transform .2s}.learn-topic-card:hover svg{transform:translate(4px)}.learn-flash-section{background:#edf1e9;border-top:1px solid #e1e7da;border-bottom:1px solid #e1e7da;scroll-margin-top:94px}.learn-flash-layout{padding-top:64px;padding-bottom:66px;display:grid;grid-template-columns:1fr 1fr;gap:95px;align-items:center}.learn-flash-intro h2{font-size:36px;margin-top:18px}.learn-flash-intro em{font-style:italic;font-family:Georgia,serif;color:#829275;font-weight:400}.learn-flash-intro>p{font-size:11px;line-height:1.95;max-width:310px;margin:21px 0;color:#8e9b85}.learn-select-label{display:block;font-size:9px;color:#71826a;font-weight:600;margin:23px 0 9px}.learn-flash-intro select{min-width:230px;max-width:100%;border:1px solid #d2dcc8;background:#f9fbf5;border-radius:7px;color:#6c7f63;padding:10px 13px;font-size:11px}.learn-mastery{display:flex;align-items:center;gap:10px;margin:25px 0 13px}.learn-mastery-icon{color:#98aa8a;font-size:28px}.learn-mastery b{font-size:9px;font-weight:600;color:#77896e}.learn-mastery small{font-size:8px;display:block;margin-top:5px;color:#a0aa98}.learn-mastery-bar{max-width:275px;height:4px;background:#dce4d3;border-radius:3px;overflow:hidden}.learn-mastery-bar span{height:100%;display:block;background:#8ca881;border-radius:3px;transition:width .4s}.learn-flash-workspace{max-width:450px;width:100%;justify-self:end}.learn-flash-topline{display:flex;justify-content:space-between;font-size:7px;font-weight:650;letter-spacing:1.4px;color:#97a18a;margin:0 3px 12px}.learn-flashcard{display:block;width:100%;height:262px;perspective:1100px;border:0;border-radius:12px;padding:0;background:transparent;text-align:left}.learn-flashcard-inner{width:100%;height:100%;display:block;position:relative;transform-style:preserve-3d;transition:transform .65s cubic-bezier(.2,.7,.2,1)}.learn-flashcard.flipped .learn-flashcard-inner{transform:rotateY(180deg)}.learn-flash-front,.learn-flash-back{position:absolute;inset:0;backface-visibility:hidden;border:1px solid #dce3d3;background:#fffef8;box-shadow:0 13px 25px #6a755512;border-radius:12px;padding:28px 32px;display:flex;flex-direction:column;overflow:hidden;isolation:isolate}.learn-flash-category{font-size:7px;letter-spacing:1.5px;color:#a5ae95;font-weight:600;text-transform:uppercase}.learn-flashcard strong{font-size:25px;letter-spacing:-.7px;line-height:1.4;font-weight:500;display:block;max-width:300px;margin:auto 0;position:relative;z-index:1;color:#53624c}.learn-flip-hint{font-size:8px;color:#b0b59e}.learn-flash-decoration{position:absolute;right:12px;bottom:21px;font:180px Georgia,serif;line-height:1;color:#ecefe4;z-index:0;opacity:.8}.learn-flash-back{transform:rotateY(180deg);background:#3c6256;border-color:#3c6256}.learn-flash-back strong{font-size:19px;line-height:1.7;color:#f4f5e9;letter-spacing:-.2px}.learn-flash-back .learn-flash-category,.learn-flash-back .learn-flip-hint{color:#a5bdac}.learn-flash-back .learn-flash-decoration{color:#557c68;font-size:130px}.learn-flash-controls{display:flex;align-items:center;justify-content:space-between;margin:16px 0 0}.learn-circle-button{border:1px solid #d3ddc9;border-radius:50%;width:33px;height:33px;font-size:14px;color:#8c9b7e!important;background:#f5f8ef;transition:background .2s,transform .2s}.learn-circle-button:hover{background:#e2ebd8;transform:scale(1.08)}.learn-outline{border:1px solid #cdd9bf;background:#f5f8ef;font-size:9px;padding:9px 21px;color:#849574!important}.learn-outline[aria-pressed=true]{background:#dbe8ce;border-color:#a8c091;color:#58784a!important}.learn-flash-footnote{text-align:center;font-size:8px;color:#a6af9a;margin-top:17px}.learn-practice{padding-top:74px;padding-bottom:75px;scroll-margin-top:120px}.learn-session-stats{display:flex;gap:11px;align-items:center;margin-bottom:7px}.learn-session-stats>span{font-size:33px;color:#8aa079;font-family:Georgia,serif}.learn-session-stats p{font-size:9px;color:#8a9784}.learn-session-stats small{display:block;font-size:8px;color:#b0b6a6;margin-top:5px}.learn-practice-layout{display:grid;grid-template-columns:230px 1fr;gap:35px}.learn-practice-topics{padding-top:10px}.learn-practice-topics>.learn-small-label{display:block;margin:0 0 15px 12px;font-size:7px}.learn-practice-topics>button{width:100%;display:flex;align-items:center;gap:12px;padding:13px 14px;font-size:11px;color:#97a08e!important;border-radius:7px;margin-bottom:4px;text-align:left;transition:background .2s,color .2s}.learn-practice-topics>button span{font:18px Georgia,serif;width:25px;text-align:center;color:#9da88f}.learn-practice-topics>button small{margin-left:auto;opacity:0}.learn-practice-topics>button.active{background:#eaf0e2;color:#6a805d!important}.learn-practice-topics>button.active small{opacity:1}.learn-practice-topics>button:hover{background:#f0f4eb;color:#63795b!important}.learn-kind-note{border-top:1px solid #e4e9dd;margin:20px 14px 0;padding-top:20px;display:flex;gap:10px;font-size:10px;align-items:center}.learn-kind-note>span{font-size:23px;color:#c6b786}.learn-kind-note p{font-size:9px;color:#a1a88f;line-height:1.8}.learn-quiz-card{border:1px solid #e0e6db;background:#fff;border-radius:12px;padding:29px 32px;min-height:350px}.learn-quiz-top{display:flex;align-items:center;justify-content:space-between;font-size:8px;letter-spacing:1px;color:#a5af99}.learn-quiz-top>span:first-child{background:#f0f4ea;color:#8ca178;letter-spacing:0;padding:5px 8px;border-radius:4px}.learn-quiz-card h3{font-size:21px;font-weight:500;line-height:1.5;letter-spacing:-.4px;color:#4a5c4e;margin:25px 0 22px}.learn-quiz-options{display:grid;grid-template-columns:1fr 1fr;gap:10px}.learn-quiz-options button{text-align:left;border:1px solid #e1e7db;background:#fdfefb;border-radius:7px;padding:12px 13px;display:flex;align-items:center;gap:10px;color:#87937f;font-size:11px;transition:background .2s,border-color .2s,transform .2s}.learn-quiz-options button:enabled:hover{border-color:#a9b89b;background:#f2f7ec;transform:translateY(-2px)}.learn-quiz-options button>span{display:grid;place-items:center;flex-shrink:0;width:22px;height:22px;background:#eff2e9;border-radius:5px;font-size:9px;color:#b1ba9f}.learn-quiz-options button>i{margin-left:auto;font-style:normal;color:#60884f}.learn-quiz-options button.correct{background:#eaf4e2;border-color:#9dbb86;color:#5e7d4d}.learn-quiz-options button.incorrect{background:#faf0e9;border-color:#d2aa93;color:#ab7d64}.learn-quiz-bottom{margin-top:22px;display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:38px}.learn-quiz-bottom>span{font-size:8px;color:#a9b29e}.learn-quiz-bottom .learn-button{font-size:9px;padding:10px 13px;gap:10px}.learn-quiz-feedback{margin-top:18px;border-radius:6px;padding:13px 15px;background:#f3f6ee;border:1px solid #dfe8d5;color:#7b926a}.learn-quiz-feedback b{font-size:10px;font-weight:650}.learn-quiz-feedback p{font-size:10px;line-height:1.8;margin-top:5px;color:#8b9a7e}.learn-quiz-feedback.try-again{background:#faf5ec;border-color:#e8deca;color:#a08f6c}.learn-quiz-feedback.try-again p{color:#a79980}.learn-method{border-top:1px solid #e2e9db;display:grid;grid-template-columns:1fr 1fr;gap:100px;padding-top:59px;padding-bottom:66px}.learn-method h2{font-size:33px}.learn-method>div>p{font-size:11px;line-height:1.9;color:#98a38e;max-width:290px;margin:18px 0 20px}.learn-method-steps{padding-top:6px}.learn-method-steps article{display:flex;gap:19px;align-items:start;margin-bottom:25px}.learn-method-steps article>span{width:30px;height:30px;display:grid;place-items:center;border-radius:50%;border:1px solid #d9e3d0;font-size:9px;color:#9cae8d;flex-shrink:0}.learn-method-steps h3{font-size:12px;font-weight:600;color:#6a7e60;margin-top:1px}.learn-method-steps p{font-size:10px;color:#a2ad97;line-height:1.8;margin-top:5px}.learn-footer{border-top:1px solid #e2e8dd;padding-top:28px;padding-bottom:30px;display:flex;justify-content:space-between;align-items:center;gap:20px}.learn-footer .learn-brand{font-size:12px}.learn-footer .learn-mark{width:29px;height:32px;font-size:23px;border-radius:7px}.learn-footer .learn-brand-sub{font-size:6px;letter-spacing:2.5px}.learn-footer>p{font-size:8px;color:#99a28f;text-align:center}.learn-footer>p small{display:block;font-size:7px;color:#b6bdab;margin-top:7px}.learn-footer>span{font-size:8px;color:#b1bba6}.learn-dialog{border:1px solid #dce3d8;border-radius:16px;background:#fbfcf8;width:390px;max-width:calc(100% - 32px);padding:35px;color:#3d554a;box-shadow:0 35px 100px #22392b35;overflow:visible}.learn-dialog::backdrop{background:#263d3d66;-webkit-backdrop-filter:blur(7px);backdrop-filter:blur(7px);animation:learn-fade .2s ease-out}.learn-dialog[open]{animation:learn-dialog-in .25s cubic-bezier(.2,.7,.3,1)}.learn-dialog-close{position:absolute;right:13px;top:11px;font-size:22px;width:27px;height:27px;color:#9fae98!important;border-radius:50%}.learn-dialog-close:hover{background:#e7eddf}.learn-dialog-symbol{width:42px;height:46px;border-radius:10px;background:#e6eddf;display:grid;place-items:center;font:32px Georgia,serif;color:#7c956a;margin-bottom:23px}.learn-dialog .learn-overline{font-size:7px}.learn-dialog h2{font-size:24px;font-weight:600;letter-spacing:-.7px;margin:11px 0 10px}.learn-dialog>p{font-size:11px;color:#9aa58e;margin-bottom:24px}.learn-dialog label{display:block;font-size:10px;font-weight:650;color:#8d9a80;margin-bottom:8px}.learn-dialog input{width:100%;border:1px solid #d8e1d0;background:#fff;border-radius:7px;padding:12px 13px;color:#405a43;font-size:11px}.learn-dialog input::placeholder{color:#b1baa5}.learn-dialog input[aria-invalid=true]{border-color:#c49b8d}.learn-dialog #login-error{min-height:34px;padding:5px 0;font-size:9px;line-height:1.6;color:#b58372}.learn-dialog form .learn-button{width:100%;justify-content:space-between}.learn-dialog>small{display:block;border-top:1px solid #e6ebdf;margin-top:23px;padding-top:17px;font-size:8px;line-height:1.7;color:#abb69c}.reveal{opacity:1;transform:none}.learning-mode.motion-ready .reveal{opacity:0;transform:translateY(17px);transition:opacity .65s ease,transform .65s cubic-bezier(.2,.8,.2,1)}.learning-mode.motion-ready .reveal.visible{opacity:1;transform:none}#flashcards,#practice,#subjects{scroll-margin-top:110px}@keyframes learn-float{0%,to{translate:0 0}50%{translate:0 -7px}}@keyframes learn-fade{0%{opacity:0}to{opacity:1}}@keyframes learn-dialog-in{0%{opacity:0;translate:0 10px;scale:.98}to{opacity:1;translate:0 0;scale:1}}@media(min-width:1550px){.learn-hero{padding-top:105px;padding-bottom:100px}.learn-hero h1{font-size:72px}.learn-hero h1>svg{left:125px;width:273px}.learn-header{height:100px}}@media(max-width:1100px){.learn-container{padding-left:40px;padding-right:40px}.learn-hero{gap:40px;padding-top:70px;padding-bottom:70px}.learn-hero h1{font-size:55px}.learn-hero h1>svg{left:90px;width:210px}.learn-hero-copy>p{font-size:12px}.learn-hero-actions{gap:17px}.learn-button{font-size:10px;gap:15px;padding:12px 16px}.learn-text-link{font-size:9px}.learn-hero-proof{font-size:7px;gap:10px}.learn-floating-top{right:-6px;font-size:13px}.learn-floating-bottom{left:-8px;font-size:9px}.learn-challenge-head{padding:15px 18px}.learn-challenge-body{padding:25px 20px 17px}.learn-equation{font-size:35px}.learn-flash-layout{gap:60px}.learn-topic-card{padding:21px 20px 0}.learn-section-head h2{font-size:31px}.learn-practice-layout{grid-template-columns:200px 1fr;gap:24px}.learn-flash-intro h2{font-size:33px}.learn-quiz-card{padding:25px}.learn-method{gap:65px}}@media(max-width:800px){.learn-header{height:80px;padding:0 30px;gap:20px}.learn-header nav{gap:18px;font-size:10px}.learn-brand{font-size:13px}.learn-mark{width:32px;height:36px;font-size:26px}.learn-brand-sub{font-size:7px}.learn-login{padding:9px 12px;font-size:10px!important}.learn-login span{padding-left:8px}.learn-container{padding-left:30px;padding-right:30px}.learn-hero{gap:28px;min-height:520px;padding-top:52px;padding-bottom:60px}.learn-hero h1{font-size:45px;letter-spacing:-2.7px;margin-top:20px}.learn-hero h1>svg{left:70px;width:180px;bottom:-9px}.learn-overline{font-size:6px;letter-spacing:1.4px}.learn-hero-copy>p{font-size:11px}.learn-hero-actions{align-items:start;flex-direction:column;gap:20px;margin:23px 0}.learn-hero-proof{font-size:6px;gap:7px;flex-wrap:wrap}.learn-hero-proof b{font-size:8px}.learn-hero-visual{padding:24px 0 14px;min-height:320px}.learn-floating-top{padding:10px 13px;font-size:11px;right:-4px}.learn-floating-bottom{padding:10px;gap:8px;bottom:-17px;left:-15px}.learn-floating-bottom>span:nth-child(2){font-size:8px}.learn-floating-bottom small{font-size:6px}.learn-floating-bottom>svg{width:34px;margin-left:0}.learn-mini-check{width:24px;height:24px;font-size:10px}.learn-challenge-head{padding:14px 13px;gap:8px}.learn-challenge-head>span:nth-child(2){font-size:6px;letter-spacing:.8px}.learn-challenge-head small{font-size:7px}.learn-challenge-body{padding:21px 14px 14px}.learn-equation{font-size:30px;margin:18px 0 12px}.learn-challenge-body .learn-small-label{font-size:6px}.learn-challenge-body>p{font-size:9px}.learn-warmup-options{gap:7px;margin:20px 0 15px}.learn-warmup-options button{font-size:13px!important}.learn-warmup-feedback{font-size:7px}.learn-topic-grid{gap:12px}.learn-topic-card{padding:18px 16px 0}.learn-topic-card h3{font-size:13px}.learn-topic-card>p{font-size:9px;min-height:48px}.learn-topic-footer>span{font-size:9px}.learn-topic-icon{width:32px;height:34px;font-size:21px}.learn-section-head h2,.learn-flash-intro h2{font-size:28px}.learn-section-head>p{font-size:9px}.learn-subjects{padding-top:55px;padding-bottom:55px}.learn-flash-layout{gap:35px;padding-top:50px;padding-bottom:50px}.learn-flash-intro>p{font-size:10px}.learn-flashcard{height:240px}.learn-flash-front,.learn-flash-back{padding:22px}.learn-flashcard strong{font-size:21px}.learn-flash-back strong{font-size:16px}.learn-practice-layout{grid-template-columns:165px 1fr;gap:20px}.learn-practice-topics>button{padding:11px 8px;gap:8px;font-size:10px}.learn-practice-topics>button span{font-size:16px;width:22px}.learn-quiz-options{gap:8px}.learn-quiz-options button{font-size:10px;padding:9px;gap:7px}.learn-quiz-options button>span{width:18px;height:20px;font-size:8px}.learn-quiz-card h3{font-size:19px}.learn-quiz-card{padding:23px 20px}.learn-quiz-bottom>span{font-size:7px}.learn-practice{padding-top:55px;padding-bottom:55px}.learn-method{gap:40px;padding-top:48px;padding-bottom:45px}.learn-method h2{font-size:28px}.learn-method>div>p{font-size:10px}.learn-method-steps p{font-size:9px}.learn-footer{padding-top:24px;padding-bottom:24px}.learn-footer>p{font-size:7px}.learn-footer>p small{font-size:6px}}@media(max-width:600px){.learn-header{padding:0 22px;height:74px}.learn-header nav{display:none}.learn-brand{font-size:13px}.learn-login{padding:9px 14px}.learn-container{padding-left:24px;padding-right:24px}.learn-hero{grid-template-columns:1fr;padding-top:49px;padding-bottom:50px;gap:28px}.learn-hero h1{font-size:58px;letter-spacing:-3.2px;margin:21px 0 25px}.learn-hero h1>svg{left:97px;width:217px;bottom:-8px}.learn-overline{font-size:7px;letter-spacing:1.4px}.learn-hero-copy>p{font-size:12px;max-width:340px}.learn-hero-actions{flex-direction:row;align-items:center;gap:23px;margin:25px 0 24px}.learn-button{font-size:10px;padding:12px 16px}.learn-text-link{font-size:9px}.learn-hero-proof{font-size:7px;gap:13px}.learn-hero-proof b{font-size:9px}.learn-hero-visual{margin:12px auto 0;max-width:390px;width:100%;padding:25px 15px;min-height:0}.learn-challenge-head{padding:16px 20px}.learn-challenge-head>span:nth-child(2){font-size:7px;letter-spacing:1px}.learn-challenge-head small{font-size:8px}.learn-challenge-body{padding:23px 22px 18px}.learn-challenge-body .learn-small-label{font-size:7px}.learn-equation{font-size:36px;margin:22px 0 13px}.learn-challenge-body>p{font-size:10px}.learn-warmup-options button{font-size:15px!important}.learn-warmup-feedback{font-size:8px}.learn-floating-top{font-size:12px;right:0;top:4px}.learn-floating-bottom{left:0;bottom:3px;padding:10px 13px}.learn-floating-bottom>span:nth-child(2){font-size:9px}.learn-floating-bottom small{font-size:7px}.learn-floating-bottom>svg{width:45px;margin-left:8px}.learn-art-plus{left:17px;top:0;font-size:21px}.learn-orbit-circle{right:-3px;bottom:7px;width:70px;height:70px}.learn-divider{flex-wrap:wrap;gap:10px;padding-top:18px;padding-bottom:18px}.learn-divider>span:first-child{font-size:9px}.learn-divider>p{font-size:8px;order:3;width:100%}.learn-divider-symbols{font-size:18px}.learn-section-head{align-items:start;gap:18px;flex-direction:column;margin-bottom:25px}.learn-section-head h2{font-size:29px;letter-spacing:-1px}.learn-section-head>p{font-size:10px}.learn-topic-grid{grid-template-columns:1fr 1fr;gap:12px}.learn-topic-card{padding:18px 15px 0}.learn-topic-card h3{font-size:12px;margin:16px 0 8px}.learn-topic-card>p{font-size:9px;min-height:48px;line-height:1.8}.learn-topic-icon{width:33px;height:34px;font-size:21px}.learn-topic-number{font-size:7px}.learn-topic-footer{padding:11px 0;margin-top:14px;gap:8px}.learn-topic-footer>span{font-size:8px}.learn-topic-footer svg{width:13px;height:13px}.learn-subjects{padding-top:44px;padding-bottom:44px}.learn-flash-layout{grid-template-columns:1fr;gap:35px;padding-top:44px;padding-bottom:39px}.learn-flash-intro h2{font-size:31px;margin-top:16px}.learn-flash-intro>p{font-size:11px;max-width:330px;margin:18px 0}.learn-flash-intro select{width:100%;max-width:330px}.learn-mastery{margin:20px 0 10px}.learn-mastery-bar{max-width:330px}.learn-flash-workspace{max-width:none;justify-self:stretch}.learn-flashcard{height:240px}.learn-flash-front,.learn-flash-back{padding:25px 28px}.learn-flashcard strong{font-size:24px;max-width:280px}.learn-flash-back strong{font-size:18px}.learn-flash-topline{font-size:7px}.learn-practice{padding-top:44px;padding-bottom:44px}.learn-practice .learn-section-head{flex-direction:row;align-items:center;gap:13px}.learn-practice .learn-section-head h2{font-size:26px}.learn-practice .learn-section-head .learn-overline{font-size:6px;letter-spacing:1px}.learn-session-stats{gap:7px;flex-shrink:0;align-self:end;margin-bottom:1px}.learn-session-stats>span{font-size:28px}.learn-session-stats p{font-size:7px}.learn-session-stats small{font-size:6px;max-width:65px;line-height:1.6}.learn-practice-layout{grid-template-columns:1fr;gap:16px}.learn-practice-topics{display:flex;flex-wrap:wrap;gap:6px;padding:0}.learn-practice-topics>.learn-small-label,.learn-kind-note{display:none}.learn-practice-topics>button{width:auto;padding:8px 10px;border:1px solid #dfe7d6;font-size:9px;margin:0;gap:6px}.learn-practice-topics>button span{font-size:13px;width:16px}.learn-practice-topics>button small{display:none}.learn-practice-topics>button.active{border-color:#c5d6b8}.learn-quiz-card{padding:23px 20px;min-height:350px}.learn-quiz-card h3{font-size:20px;margin:23px 0 19px}.learn-quiz-options{grid-template-columns:1fr;gap:9px}.learn-quiz-options button{padding:11px 12px;font-size:11px;gap:10px}.learn-quiz-options button>span{width:22px;height:22px;font-size:9px}.learn-quiz-feedback p{font-size:10px}.learn-quiz-bottom{margin-top:20px}.learn-method{grid-template-columns:1fr;gap:30px;padding-top:40px;padding-bottom:35px}.learn-method h2{font-size:30px}.learn-method>div>p{font-size:11px;max-width:320px}.learn-method-steps article{margin-bottom:22px}.learn-method-steps h3{font-size:12px}.learn-method-steps p{font-size:10px;max-width:265px}.learn-footer{flex-wrap:wrap;gap:20px;padding-top:25px;padding-bottom:25px}.learn-footer>p{order:3;width:100%;text-align:left;font-size:8px;line-height:1.8}.learn-footer>p small{font-size:7px;margin-top:3px}.learn-footer>span{margin-left:auto}.learn-dialog{padding:30px}.learn-dialog h2{font-size:23px}.learn-dialog .learn-overline{font-size:7px}#flashcards,#practice,#subjects{scroll-margin-top:92px}}@media(max-width:360px){.learn-container,.learn-header{padding-left:20px;padding-right:20px}.learn-hero h1{font-size:51px}.learn-hero h1>svg{left:83px;width:194px}.learn-hero-actions{gap:15px}.learn-hero-actions .learn-text-link{font-size:8px}.learn-button{padding:11px 13px;font-size:9px}.learn-hero-proof{gap:10px;font-size:6px}.learn-topic-grid{gap:9px}.learn-topic-card{padding:16px 12px 0}.learn-topic-card h3{font-size:11px}.learn-topic-card>p{font-size:8px}.learn-topic-footer>span{font-size:7px}.learn-practice .learn-section-head h2{font-size:24px}.learn-session-stats small{display:none}.learn-flashcard strong{font-size:22px}.learn-flash-back strong{font-size:16px}}@media(prefers-reduced-motion:reduce){.learning-mode *,.learning-mode *:before,.learning-mode *:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.learning-mode.motion-ready .reveal{opacity:1;transform:none}}.learn-login span svg,.learn-text-link>span svg{width:13px;height:13px;vertical-align:middle}.learn-flashcard.long-answer .learn-flash-back strong{font-size:16px;line-height:1.6}@media(max-width:600px){.learn-flashcard{height:280px}.learn-flashcard.long-answer .learn-flash-back strong{font-size:16px;line-height:1.6}}.learn-header nav{font-size:12px;color:#65766c}.learn-login{font-size:12px!important}.learn-hero-copy>p{font-size:14px;color:#667a70}.learn-overline{color:#687e6c;font-size:9px}.learn-topic-card h3{font-size:16px;color:#354f40}.learn-topic-card>p{font-size:12px;color:#74836e;min-height:45px}.learn-topic-footer>span{color:#7b896d}.learn-section-head>p{font-size:12px;color:#79876f}.learn-flash-intro>p{font-size:13px;color:#718466}.learn-select-label{font-size:11px;color:#637c55}.learn-flash-intro select{font-size:12px}.learn-mastery b{font-size:11px;color:#627c53}.learn-mastery small{font-size:9px;color:#809172}.learn-flash-category{font-size:9px;color:#788a68}.learn-flip-hint{font-size:9px;color:#879775}.learn-flash-front .learn-flashcard strong{color:#405839}.learn-practice-topics>button{font-size:12px;color:#738367!important}.learn-quiz-options button{font-size:12px;color:#627854}.learn-quiz-options button>span{color:#7e916b}.learn-quiz-feedback b,.learn-quiz-feedback p{font-size:12px}.learn-quiz-bottom>span{font-size:10px;color:#80906e}.learn-quiz-top{font-size:9px;color:#7f916b}.learn-session-stats p{font-size:10px;color:#728660}.learn-method>div>p{font-size:12px;color:#798d69}.learn-method-steps h3{font-size:14px}.learn-method-steps p{font-size:12px;color:#7c906c}.learn-dialog>p{font-size:12px;color:#738769}.learn-dialog label{font-size:11px;color:#627b55}.learn-dialog input{font-size:12px}.learn-dialog>small{font-size:10px;color:#7c906a}.learn-dialog #login-error{font-size:10px;color:#a35e4a}.learn-footer>p{font-size:9px;color:#7b8c6e}.learn-footer>p small{font-size:8px;color:#879777}@media(max-width:800px){.learn-header nav{font-size:10px}.learn-overline{font-size:7px}.learn-hero-copy>p{font-size:12px}.learn-topic-card h3{font-size:14px}.learn-topic-card>p{font-size:10px;min-height:52px}.learn-section-head>p{font-size:10px}.learn-flash-intro>p{font-size:11px}.learn-practice-topics>button{font-size:10px}.learn-quiz-options button,.learn-quiz-feedback p{font-size:11px}.learn-method-steps h3{font-size:12px}.learn-method-steps p{font-size:10px}.learn-quiz-bottom>span{font-size:8px}.learn-method>div>p{font-size:11px}}@media(max-width:600px){.learn-overline{font-size:8px}.learn-hero-copy>p{font-size:13px}.learn-topic-card h3{font-size:13px}.learn-topic-card>p{font-size:11px;min-height:61px}.learn-practice-topics>button{font-size:10px}.learn-quiz-options button{font-size:12px}.learn-quiz-feedback b,.learn-quiz-feedback p{font-size:11px}.learn-method-steps h3{font-size:13px}.learn-method-steps p{font-size:11px}.learn-method>div>p{font-size:12px}.learn-footer>p{font-size:9px}.learn-footer>p small{font-size:8px}}@media(max-width:360px){.learn-overline{font-size:7px}.learn-topic-card h3{font-size:12px}.learn-topic-card>p{font-size:10px;min-height:59px}}@media(max-width:600px){.learn-grid-art{left:0;right:0}}
