@import "https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;550;600;650;700&family=Nunito:wght@600;700;750;800;850;900&display=swap";.email-auth{text-align:start;margin-block:20px}.email-auth .login-divider{margin-block:22px}.email-auth fieldset{border:0;min-width:0;margin:0;padding:0}.email-auth legend{color:#18314e;margin-bottom:16px;font-size:17px;font-weight:750}.email-auth label{color:#18314e;gap:8px;margin-bottom:16px;font-size:14px;font-weight:650;display:grid}.email-auth input{box-sizing:border-box;width:100%;font:inherit;color:#18314e;background:#f8fbff;border:1px solid #d9e6f1;border-radius:14px;padding:14px 16px;font-size:16px}.email-auth input:focus{border-color:#168cdd;outline:3px solid #bfe7ff}.email-auth small{color:#5e7288;font-weight:400}.email-submit{color:#fff;background:#183b64;border:0;border-radius:999px;justify-content:center;align-items:center;gap:10px;width:100%;min-height:50px;padding:12px 18px;font-weight:750;display:flex}.email-submit:hover{background:#245584}.email-actions{flex-wrap:wrap;justify-content:space-between;gap:12px;margin-block:14px;display:flex}.email-actions button,.email-link{color:#087bb9;background:0 0;border:0;padding:4px 0;font-size:14px;font-weight:650}.email-auth button:disabled{opacity:.55;cursor:wait}.email-error,.email-success{border-radius:12px;padding:12px;font-size:14px;line-height:1.6}.email-error{color:#9c3030;background:#fff1f0}.email-success{color:#216247;background:#ebf8f1}.account-email{border-top:1px solid #d9e6f1;padding-top:16px}.login-method-tabs{isolation:isolate;background:#edf3f9;border-radius:999px;gap:5px;margin-top:24px;padding:5px;display:flex;position:relative}.login-method-tabs button{color:#647b92;min-height:44px;font:inherit;background:0 0;border:0;border-radius:999px;flex:1;justify-content:center;align-items:center;gap:9px;font-weight:700;transition:background .16s,color .16s,box-shadow .16s;display:flex}.login-method-tabs button[aria-selected=true]{color:#183b64;background:0 0}.login-method-tabs button:focus-visible{outline-offset:2px;outline:3px solid #76caff}.login-method-tabs button:disabled{opacity:.55;cursor:wait}.google-login-panel{padding-block:24px 8px}.google-login-panel p{color:#647b92;text-align:center;font-size:14px;line-height:1.7}.google-login-panel .google-button{margin-top:18px}@media (prefers-reduced-motion:reduce){.login-method-tabs button{transition:none}}.login-tab-indicator{z-index:-1;pointer-events:none;background:#fff;border-radius:999px;width:calc(50% - 7.5px);transition:transform .28s cubic-bezier(.22,1,.36,1);position:absolute;inset-block:5px;inset-inline-start:5px;box-shadow:0 2px 8px #183b6412}.login-method-tabs[data-active=google] .login-tab-indicator{transform:translate(calc(100% + 5px))}[dir=rtl] .login-method-tabs[data-active=google] .login-tab-indicator{transform:translate(calc(-100% - 5px))}.login-panels{transition:height .28s cubic-bezier(.22,1,.36,1);overflow:clip}.login-panels-content{display:flow-root}.login-panels [role=tabpanel]:not([hidden]){animation:.24s ease-out both login-content-in;display:flow-root}.login-panels input:focus{outline-offset:-2px}.login-page .login-panel{animation:.38s ease-out both login-card-in}@keyframes login-content-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes login-card-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:reduce){.login-tab-indicator,.login-panels{transition:none}.login-panels [role=tabpanel]:not([hidden]),.login-page .login-panel{animation:none}}.email-auth legend.auth-legend-hidden{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.fill-practice{background:#fff;border:1px solid #e0ebf3;border-radius:24px;width:min(760px,100% - 32px);margin:20px auto 60px;padding:32px}.fill-practice header,.fill-actions{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;display:flex}.fill-practice header span{color:#13845e;font-weight:700}.fill-practice h1{margin-top:32px;font-size:28px}.fill-practice progress{accent-color:#289cf1;width:100%;height:8px}.fill-sentence{margin:32px 0;font-size:clamp(24px,4vw,34px);line-height:1.65}.fill-sentence strong{color:#1684c4}.fill-practice label{margin:16px 0 8px;font-weight:700;display:block}.fill-practice input{box-sizing:border-box;width:100%;font:inherit;border:2px solid #c7d9e6;border-radius:12px;padding:16px;font-size:22px}.fill-practice input:focus{border-color:#1684c4;outline:3px solid #bbdfff}.fill-feedback{color:#526476;min-height:56px;padding:16px 0}.fill-feedback.wrong{color:#b23c32}.fill-feedback.correct{color:#12805a}.fill-actions{justify-content:flex-start}.fill-result button{margin:12px 12px 0 0}@media (width<=600px){.fill-practice{box-sizing:border-box;width:calc(100% - 24px);padding:20px}.fill-practice h1{font-size:24px}}.live-lessons .lesson-entry{background:#fff;border:1px solid #e1edf5;border-radius:14px;align-items:center;gap:12px;padding:8px 16px 8px 8px;display:flex}.lesson-learn{text-align:start;background:0 0;border:0;flex:1;align-items:center;gap:13px;min-width:0;padding:12px 8px;display:flex}.lesson-learn .lesson-title{flex:1}.lesson-practice-entry{flex-shrink:0}@media (width<=600px){.live-lessons .lesson-entry{flex-wrap:wrap}.lesson-learn{flex-basis:100%}.lesson-practice-entry{margin:0 0 8px 8px}}:root{color:#25364a;font-synthesis:none;--ink:#152c4b;--blue:#159ef4;--muted:#778ba4;--line:#e5eef7;--round:"Nunito", "Arial Rounded MT Bold", sans-serif;background:#f7fbff;font-family:DM Sans,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-weight:400}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button{cursor:pointer}button,a,input,select{-webkit-tap-highlight-color:transparent}button{color:inherit}button:disabled{opacity:.5;cursor:not-allowed}button:focus-visible,input:focus-visible,select:focus-visible{outline-offset:4px;outline:3px solid #71c9ff}button{transition:background .2s,transform .2s,box-shadow .2s}button:hover:not(:disabled){transform:translateY(-2px)}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:var(--round);color:var(--ink)}button svg{flex-shrink:0}button{border:0}svg{vertical-align:middle}select{cursor:pointer}::selection{background:#bee9ff}.logo{font-family:var(--round);letter-spacing:-1.5px;color:#102c50;align-items:center;gap:8px;font-size:31px;font-weight:900;display:inline-flex}.logo-dot{color:var(--blue);margin-left:-9px}.logo-bird{mix-blend-mode:multiply;background:url(/brand-guide.png) -6px -70px/246px 164px;width:47px;height:48px;display:block}.bird{mix-blend-mode:multiply;background:url(/brand-guide.png) -38px -438px/1536px 1024px;width:290px;height:290px}.eyebrow{letter-spacing:2.3px;color:#8296ab;font-size:12px;font-weight:700;display:block}.eyebrow>span{background:#38aff6;border-radius:50%;width:6px;height:6px;margin-right:9px;display:inline-block}.primary-button,.secondary-button{border-radius:15px;justify-content:center;align-items:center;gap:12px;min-height:48px;padding:13px 22px;font-size:14px;font-weight:650;display:inline-flex}.primary-button{color:#fff;background:linear-gradient(135deg,#27b4ff,#008bfa);box-shadow:0 7px 16px #159ef425}.primary-button:hover{background:linear-gradient(135deg,#15a8fb,#007de9);box-shadow:0 9px 22px #159ef442}.secondary-button{background:#fff;border:1px solid #dfe9f3}.icon-button{background:0 0;border-radius:50%;justify-content:center;align-items:center;padding:8px;display:inline-flex}.full{width:100%}.muted{color:#8191a7;margin:16px 0;font-size:13px;line-height:1.7}.loading-screen{flex-direction:column;justify-content:center;align-items:center;gap:25px;min-height:100dvh;display:flex}.loading-screen p{color:var(--muted)}.login-page{background:radial-gradient(at 18%,#e5f5ff 0,#0000 60%),#f9fcff;min-height:100dvh;padding:34px 5vw 20px}.login-header{justify-content:space-between;align-items:center;max-width:1320px;margin:auto;display:flex}.login-header>span{color:#6e829b;align-items:center;gap:9px;font-size:14px;display:flex}.login-layout{grid-template-columns:1.15fr 1fr;align-items:center;gap:80px;max-width:1240px;margin:44px auto 32px;display:grid}.login-story{padding-top:14px}.login-story h1{letter-spacing:-2.3px;margin:21px 0 18px;font-size:clamp(40px,4.2vw,64px);font-weight:900;line-height:1.13}.login-story h1>span{color:#239ff1}.login-story>p{color:#7b91aa;font-size:17px;line-height:1.8}.login-illustration{max-width:530px;height:320px;margin:13px 0 0;position:relative}.login-illustration>.bird{animation:6s ease-in-out infinite float;position:absolute;top:6px;left:105px}.orbit{border:1px dashed #abdff7;border-radius:50%;position:absolute;inset:28px 40px 10px 20px;transform:rotate(-19deg)}.orbit:after{content:"";border:1px dashed #cce9f5;border-radius:50%;position:absolute;inset:20px -17px}.bubble{z-index:2;font-family:var(--round);background:#fff;border:1px solid #f3f8fc;border-radius:18px;padding:15px 19px;font-size:19px;font-weight:850;animation:6s ease-in-out -2s infinite float;position:absolute;box-shadow:0 12px 35px #68b0d314}.hello{top:45px;right:0;rotate:7deg}.confidence{align-items:center;gap:10px;display:flex;bottom:36px;left:14px;rotate:-7deg}.confidence svg{color:#1dc5aa}.sparkle{color:#ffc52d;font-size:40px;position:absolute}.sparkle.one{top:52px;left:32px}.sparkle.two{color:#42b8f5;bottom:36px;right:23px}.cloud{background:#fff;border-radius:30px;width:68px;height:22px;position:absolute}.cloud:before{content:"";background:#fff;border-radius:50%;width:30px;height:30px;position:absolute;bottom:3px;left:20px}.cloud-one{top:150px;left:0}.cloud-two{top:205px;right:0}.story-bottom{color:#7c96ac;gap:24px;font-size:12px;display:flex}.story-bottom span{align-items:center;gap:7px;display:flex}.story-bottom svg{color:#4bcbb8}.login-panel{background:#ffffffed;border:1px solid #e6eff6;border-radius:32px;padding:48px 42px;position:relative;box-shadow:0 18px 70px #89b7cd13}.welcome-icon{color:#2aacf6;background:#edf8ff;border-radius:21px;place-items:center;width:61px;height:61px;margin-bottom:30px;display:grid}.login-panel .eyebrow{letter-spacing:1.7px;font-size:12px}.login-panel h2{letter-spacing:-1.4px;margin:13px 0 16px;font-size:39px;font-weight:900;line-height:1.2}.login-panel h2>span{color:#2eacf5}.login-panel>p{color:#8090a4;font-size:14px;line-height:1.8}.google-button{background:#fff;border:1px solid #d9e6f1;border-radius:15px;justify-content:center;align-items:center;gap:13px;width:100%;min-height:56px;margin-top:33px;font-weight:650;display:flex;box-shadow:0 3px #f4f8fc}.google-button>svg:last-child{color:#94a4b7;margin-left:5px}.google-button:hover{background:#f7fbff;border-color:#8bcdf8;box-shadow:0 5px 18px #add5ef26}.login-note{color:#94a1b1;justify-content:center;align-items:center;gap:8px;margin-top:15px;font-size:12px;display:flex}.login-divider{color:#a0acbb;letter-spacing:1.5px;white-space:nowrap;align-items:center;gap:12px;margin:31px 0 22px;font-size:12px;font-weight:600;display:flex}.login-divider:before,.login-divider:after{content:"";background:#ecf1f6;flex:1;height:1px}.preview-button{color:#168fdb;background:#eff8ff;border-radius:13px;justify-content:center;align-items:center;gap:12px;width:100%;padding:14px;font-size:14px;font-weight:600;display:flex}.login-panel>.preview-note{text-align:center;color:#97a6b8;margin-top:10px;font-size:12px}.welcome-footer{color:#97a4b4;border-top:1px solid #edf2f6;justify-content:center;align-items:center;gap:10px;margin-top:29px;padding-top:23px;font-size:12px;display:flex}.welcome-footer>span{color:#f4c13d;font-size:20px}.login-footer{color:#a0aebc;justify-content:space-between;align-items:center;max-width:1320px;margin:auto;font-size:12px;display:flex}.login-footer button{color:#8b9eb1;background:0 0;align-items:center;gap:6px;font-size:12px;display:flex}.app-shell{background:radial-gradient(at 75% 10%,#fff,#0000 65%),#f7fbff;grid-template-columns:222px minmax(0,1fr);min-height:100dvh;display:grid}.sidebar{background:linear-gradient(155deg,#fff,#f4faff);border-right:1px solid #e6f0f7;flex-direction:column;height:100dvh;padding:34px 22px 20px;display:flex;position:sticky;top:0}.brand-button{text-align:left;background:0 0;padding:0}.nav-label{letter-spacing:1.5px;color:#a2b0bf;white-space:nowrap;margin:44px 10px 15px;font-size:12px;font-weight:650}.sidebar nav{flex-direction:column;gap:9px;display:flex}.sidebar nav>button{text-align:left;color:#6c8097;background:0 0;border-radius:13px;align-items:center;gap:14px;padding:15px 17px;font-size:14px;font-weight:500;display:flex}.sidebar nav>button.active{color:#0589ed;background:linear-gradient(100deg,#e3f5ff,#d9f0ff);font-weight:650}.sidebar nav>button.active svg{fill:#1c9dfb22}.nav-dot{background:#1b9ff3;border-radius:50%;width:5px;height:5px;margin-left:auto}.sidebar-bottom{margin-top:auto;padding-top:32px}.encouragement{background:linear-gradient(135deg,#fef9e7,#fffdf5);border-radius:18px;min-height:155px;margin-bottom:23px;padding:18px 15px 26px;position:relative;overflow:hidden}.encouragement>span{color:#f5c448;font-size:23px}.encouragement h3{z-index:1;margin-top:5px;font-size:14px;line-height:1.5;position:relative}.encouragement p{color:#a29b81;margin-top:6px;font-size:12px}.tiny-bird{width:90px;height:90px;position:absolute;bottom:-24px;right:-19px;rotate:-20deg}.tiny-bird .bird{transform-origin:0 0;transform:scale(.31)}.help-button{color:#8698ab;background:0 0;align-items:center;gap:12px;margin-bottom:20px;padding:10px;font-size:13px;display:flex}.account-button{text-align:left;background:0 0;border-top:1px solid #e2edf6;align-items:center;gap:10px;width:100%;padding:16px 0 0;display:flex}.account-button strong{text-overflow:ellipsis;max-width:100px;font-size:12px;font-weight:600;display:block;overflow:hidden}.account-button small{color:#92a2b5;margin-top:4px;font-size:12px;display:block}.account-button>svg{color:#9bacbf;margin-left:auto}.profile-bird{background:url(/brand-guide.png) -150px -284px/670px 447px;border-radius:50%;flex-shrink:0;width:35px;height:35px;display:block}.workspace{align-self:start;width:100%;max-width:1530px;margin:0 auto;padding:39px 38px 22px}.workspace-header{justify-content:space-between;align-items:center;gap:22px;display:flex}.workspace-header .eyebrow{letter-spacing:2px;margin-bottom:10px;font-size:12px}.workspace-header h1{letter-spacing:-1px;font-size:31px;font-weight:850;line-height:1.25}.workspace-header h1 .wave{transform-origin:70% 70%;margin-left:6px;font-size:28px;animation:2.3s ease-in-out wave;display:inline-block}.workspace-header p{color:#8395aa;margin-top:8px;font-size:14px}.level-picker{white-space:nowrap;background:#fff;border:1px solid #e5eef7;border-radius:15px;align-items:center;gap:12px;padding:13px 15px;font-size:12px;display:flex;position:relative;box-shadow:0 3px 8px #a2c6df08}.level-picker>span{color:#7e90a6;border-right:1px solid #e7eef5;padding:4px 12px 4px 0}.level-picker select{appearance:none;color:#1e3554;background:0 0;border:0;padding:3px 18px 3px 0;font-size:14px;font-weight:650}.level-picker>svg{pointer-events:none;position:absolute;right:13px}.preview-ribbon{color:#8ca0b3;justify-content:space-between;align-items:center;margin:21px 0 15px;font-size:12px;display:flex}.preview-ribbon>span{align-items:center;gap:6px;display:flex}.preview-dot{background:#b5c8d8;border-radius:50%;width:5px;height:5px}.preview-ribbon button{color:#8a9eb2;background:0 0;align-items:center;gap:4px;font-size:12px;display:flex}.learning-grid{grid-template-columns:minmax(0,1fr) 265px;gap:20px;display:grid}.hero-card{background:radial-gradient(at 65% 5%,#e4f7ff,#0000 70%),linear-gradient(130deg,#cef 0,#eaf9ff 48%,#fff3cd 100%);border:1px solid #dbedf6;border-radius:25px;min-height:324px;position:relative;overflow:hidden}.hero-copy{z-index:3;max-width:66%;padding:28px 25px;position:relative}.hero-kicker{color:#0799f5;font-size:13px;font-weight:650}.hero-copy h2{letter-spacing:-.8px;margin:8px 0;font-size:32px;font-weight:900}.hero-copy>p{color:#526d8b;max-width:275px;font-size:13px;line-height:1.7}.lesson-progress{max-width:245px;margin:23px 0 22px}.lesson-progress>span{color:#70849e;margin-bottom:8px;font-size:12px;display:block}.lesson-progress>span>span{float:right;color:#7fa1b8;font-size:12px}.lesson-progress strong{color:#3e6483;font-weight:500}.track{background:#d6e3ec;border-radius:10px;height:8px;overflow:hidden}.track>span{background:linear-gradient(90deg,#37b9f7,#219ef3);border-radius:10px;height:100%;display:block}.hero-copy .primary-button{border-radius:14px;min-height:47px;padding:12px 19px;font-size:13px}.hero-copy .primary-button>svg:last-child{width:15px;margin-left:6px}.hero-footnote{color:#99a49e;margin-top:13px;font-size:12px;display:block}.hero-bird{z-index:2;animation:7s ease-in-out infinite float;position:absolute;top:15px;right:-18px;transform:rotate(-8deg)}.hero-star{color:#ffc335;z-index:3;font-size:25px;position:absolute;top:34px;right:32px}.hero-star.small{color:#fff;font-size:27px;top:67px;right:238px}.hero-clouds{z-index:2;pointer-events:none;background:radial-gradient(circle at 45% 100%,#fffdf3 0 75px,#0000 76px),radial-gradient(circle at 65% 105%,#fffef7 0 88px,#0000 89px),radial-gradient(circle at 94% 110%,#d5f1ff 0 105px,#0000 106px);width:100%;height:120px;position:absolute;bottom:-35px}.weekly-card{background:#ffffffd9;border:1px solid #e5eff7;border-radius:23px;padding:20px 18px;box-shadow:0 4px 16px #a6c6dd08}.weekly-title{color:#546e8c;justify-content:space-between;align-items:center;font-size:12px;font-weight:600;display:flex}.mini-badge{letter-spacing:.8px;color:#76bba9;background:#eefbf6;border-radius:4px;padding:4px 5px;font-size:12px}.weekly-card h2{letter-spacing:-1px;margin:3px 0 10px;font-size:30px;font-weight:850}.weekly-card h2>span{letter-spacing:-.3px;font-size:17px;font-weight:700}.bar-chart{border-top:1px solid #edf2f6;justify-content:space-between;align-items:end;gap:14px;padding:13px 0 14px;display:flex}.bar-chart>div{flex-direction:column;flex:1;align-items:center;gap:7px;display:flex}.bar{background:linear-gradient(#65caff,#8addff);border-radius:5px;width:13px;display:block}.bar.today{background:linear-gradient(#1598f6,#3db7ff)}.bar.empty{background:#e5edf4}.bar-chart small{color:#9baabb;font-size:12px}.stat-row{background:#f8fbff;border-radius:9px;align-items:center;gap:9px;padding:10px 8px;font-size:12px;display:flex}.stat-row>svg{width:20px;height:20px}.stat-row>span:last-child{color:#a4b0bf;margin-left:auto;font-size:12px}.stat-row>strong{margin-left:auto;font-weight:650}.weekly-goal{align-items:center;gap:10px;padding:14px 8px;display:flex}.weekly-goal>svg{flex-shrink:0;width:21px}.weekly-goal>div{flex:1}.weekly-goal>div>span{margin-bottom:7px;font-size:12px;display:block}.weekly-goal small{float:right;color:#8296ab;font-size:12px}.weekly-goal .track{height:6px}.track.mint>span{background:linear-gradient(90deg,#30d7c0,#22c5b9)}.course-sections{grid-template-columns:4fr 3fr;gap:25px;margin-top:35px;display:grid}.section-heading{justify-content:space-between;align-items:center;gap:10px;margin-bottom:16px;display:flex}.section-heading h2{letter-spacing:-.3px;font-size:18px;font-weight:850}.section-heading h2>span{letter-spacing:1px;color:#a0afbf;margin-top:5px;font-family:DM Sans,sans-serif;font-size:12px;font-weight:500;display:block}.section-heading button{color:#0c9cf5;white-space:nowrap;background:0 0;align-items:center;gap:3px;padding:6px 0;font-size:12px;display:inline-flex}.course-grid{gap:10px;display:grid}.course-grid.system{grid-template-columns:repeat(4,minmax(0,1fr))}.course-grid.extension{grid-template-columns:repeat(3,minmax(0,1fr))}.course-card{text-align:left;border:1px solid #fff;border-radius:17px;outline:1px solid #e6eef5;flex-direction:column;min-width:0;min-height:182px;padding:16px 11px 12px;display:flex;position:relative;overflow:hidden;box-shadow:0 3px 8px #b2c7d412}.course-card:hover{outline-color:#b4dcf7;transform:translateY(-5px);box-shadow:0 10px 24px #92b5cc30}.blue{--icon-bg:#c8eeff;--icon-color:#13a2ef;background:linear-gradient(135deg,#eefaff,#f3faff)}.yellow{--icon-bg:#ffe796;--icon-color:#d38a18;background:linear-gradient(135deg,#fffbef,#fffae9)}.coral{--icon-bg:#ffd1c5;--icon-color:#ed785d;background:linear-gradient(135deg,#fff5f2,#fff1ed)}.mint{--icon-bg:#b7f5e5;--icon-color:#16b897;background:linear-gradient(135deg,#f1fdf9,#eefaf7)}.purple{--icon-bg:#e5d4ff;--icon-color:#9862de;background:linear-gradient(135deg,#f8f4ff,#f5f0ff)}.course-icon{background:var(--icon-bg,#dcf3ff);width:50px;height:50px;color:var(--icon-color,#1b9eed);border-radius:16px;flex-shrink:0;place-items:center;margin:0 auto 15px;display:grid;box-shadow:inset 0 2px 6px #ffffff7a}.course-icon>svg{filter:drop-shadow(0 2px #ffffff8a)}.course-card h3{letter-spacing:-.15px;font-size:12px;font-weight:850;line-height:1.4}.course-level{color:#7990a7;margin-top:5px;font-size:12px}.course-card-footer{color:#7790a7;border-top:1px solid #ffffffd4;justify-content:space-between;align-items:center;margin-top:auto;padding-top:11px;font-size:12px;display:flex}.course-level+.course-card-footer{margin-top:12px}.course-card-footer>svg{color:#52728d;height:13px}.daily-tip{background:#fff;border:1px solid #e7eff6;border-radius:17px;align-items:center;gap:15px;margin-top:28px;padding:15px 20px;display:flex}.tip-icon{color:#eab73c;background:#fff8dc;border-radius:14px;place-items:center;width:42px;height:42px;display:grid}.daily-tip strong{color:#62758e;font-size:12px;font-weight:650}.daily-tip p{color:#91a0b1;margin-top:5px;font-size:12px}.tip-signature{font-family:var(--round);color:#b6b19b;white-space:nowrap;margin-left:auto;font-size:12px;font-weight:750}.workspace-footer{color:#a1b2c2;justify-content:space-between;margin-top:32px;padding:0 2px;font-size:12px;display:flex}.workspace-footer span>span{color:#efc34e;margin-left:4px}.mobile-header,.mobile-nav{display:none}.catalog-toolbar{flex-wrap:wrap;align-items:center;gap:12px;margin:25px 0;display:flex}.tabs{background:#fff;border:1px solid #e3edf6;border-radius:12px;gap:3px;padding:4px;display:flex}.tabs button{color:#8498aa;background:0 0;border-radius:8px;padding:9px 14px;font-size:12px}.tabs button.active{color:#158fda;background:#e7f5ff}.catalog-search{color:#92a7bc;background:#fff;border:1px solid #e3edf6;border-radius:12px;align-items:center;gap:8px;margin-left:auto;padding:12px;display:flex}.catalog-search input{color:#34506d;background:0 0;border:0;outline:none;width:170px;min-width:0;font-size:12px}.catalog-toolbar>select{color:#54728f;background:#fff;border:1px solid #e3edf6;border-radius:12px;padding:12px;font-size:12px}.catalog-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;display:grid}.catalog-grid .course-card{min-height:230px;padding:25px}.catalog-grid .course-card h3{font-size:17px}.catalog-grid .course-card .course-icon{width:64px;height:64px;margin:0 0 20px}.catalog-grid .course-level{font-size:13px}.catalog-grid .course-card-footer{font-size:12px}.empty-state{color:#849ab1;text-align:center;flex-direction:column;align-items:center;gap:17px;padding:65px 15px;display:flex}.empty-state h2{font-size:22px}.practice-banner{background:linear-gradient(130deg,#e7f7ff,#f2fbf7);border:1px solid #d9edf7;border-radius:23px;align-items:center;gap:26px;margin:24px 0;padding:35px;display:flex}.practice-banner h2{margin:8px 0;font-size:28px}.practice-banner p{color:#7e94a9;font-size:14px}.practice-mic{color:#20a8f4;background:#fff;border-radius:25px;flex-shrink:0;place-items:center;width:82px;height:82px;display:grid;box-shadow:0 8px 20px #7fc5ed17}.practice-card{text-align:left;border:1px solid #e4edf4;border-radius:19px;padding:25px}.practice-card .course-icon{margin:0 0 20px}.practice-card h3{font-size:18px}.practice-card p{color:#8197ac;margin:9px 0 25px;font-size:12px}.practice-card>span:last-child{color:#4c7e9f;justify-content:space-between;font-size:12px;display:flex}.milestones{margin-top:35px}.sample-label{color:#9aabbb;letter-spacing:1px;font-size:12px}.milestone-grid{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}.milestone-grid article{text-align:center;background:#fff;border:1px solid #e1ecf5;border-radius:20px;padding:25px}.milestone-grid article>span{font-size:36px}.milestone-grid h3{margin:12px 0 8px;font-size:18px}.milestone-grid p{color:#8b9caf;font-size:12px}.toast{z-index:30;color:#965942;background:#fff;border:1px solid #ffd9cd;border-radius:15px;align-items:center;gap:15px;width:max-content;max-width:calc(100vw - 32px);padding:15px 12px 15px 20px;font-size:13px;display:flex;position:fixed;top:20px;left:50%;transform:translate(-50%);box-shadow:0 10px 40px #263e5a20}.toast>span{max-width:430px}dialog{color:#29405a;border:1px solid #e5edf5;border-radius:25px;width:540px;max-width:calc(100vw - 32px);max-height:calc(100dvh - 40px);padding:28px;box-shadow:0 20px 80px #163c5730}dialog::backdrop{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#17334b55}.dialog-head{justify-content:space-between;align-items:center;gap:15px;margin-bottom:23px;display:flex}.dialog-head h2{font-size:23px}.dialog-description{color:#758da5;margin-bottom:20px;font-size:15px;line-height:1.8}.detail-meta{flex-wrap:wrap;gap:8px;margin:20px 0 25px;display:flex}.detail-meta>span{color:#5a88a9;background:#eef7ff;border-radius:8px;padding:7px 10px;font-size:12px}dialog h3{font-size:16px}.phrase-list{flex-direction:column;gap:15px;margin:20px 0;padding:0;font-size:14px;list-style:none;display:flex}.phrase-list li{align-items:center;gap:10px;display:flex}.phrase-list svg{color:#2cc8ae;flex-shrink:0}.lesson-body>.track{height:6px;margin:14px 0 30px}.lesson-body>h2{text-align:center;margin:20px 0;font-size:31px;line-height:1.4}.lesson-body>p{color:#8196aa;text-align:center;font-size:14px;line-height:1.7}.listen-button{color:#1c9be7;background:#eaf7ff;border-radius:14px;justify-content:center;align-items:center;gap:10px;margin:24px auto;padding:14px 20px;font-size:13px;display:flex}.read-aloud{color:#5b7e98;border:1px dashed #cde3ef;border-radius:15px;align-items:center;gap:14px;padding:18px;font-size:13px;display:flex}.read-aloud small{color:#9aabba;margin-top:7px;font-size:12px;display:block}.lesson-controls{justify-content:space-between;gap:10px;margin-top:25px;display:flex}.lesson-complete{text-align:center;padding:10px 0}.lesson-complete>span{font-size:60px}.lesson-complete h2{margin:15px 0;font-size:27px}.lesson-complete p{color:#8094a9;font-size:14px;line-height:1.8}.lesson-complete .primary-button{margin-top:15px}.help-list{color:#7a8fa5;gap:12px;margin-bottom:25px;padding-left:20px;font-size:14px;line-height:1.8;display:grid}.profile-summary{text-align:center}.profile-summary .profile-bird{margin:20px auto;transform:scale(1.5)}.profile-summary h2{margin-top:28px}.profile-summary p{color:#7b91a6;overflow-wrap:anywhere;margin-top:10px;font-size:14px}@keyframes float{0%,to{translate:0}50%{translate:0 -10px}}@keyframes wave{0%,to{rotate:0deg}25%{rotate:18deg}50%{rotate:-12deg}75%{rotate:15deg}}@media (width>=1500px){.workspace{padding:50px}.learning-grid{grid-template-columns:minmax(0,1fr) 300px;gap:26px}.hero-card{min-height:370px}.hero-copy{padding:36px}.hero-copy h2{font-size:40px}.hero-copy>p{max-width:310px;font-size:15px}.hero-bird{top:40px;right:20px;scale:1.15}.weekly-card{padding:25px}.bar-chart{padding-top:22px;padding-bottom:20px}.course-card{min-height:210px;padding:22px 16px}.course-card h3{font-size:15px}.course-level,.course-card-footer{font-size:12px}.course-icon{width:57px;height:57px}.section-heading h2{font-size:21px}.section-heading h2>span,.section-heading button{font-size:12px}.course-sections{gap:30px;margin-top:40px}.daily-tip{margin-top:35px;padding:20px}.daily-tip strong,.daily-tip p{font-size:13px}}@media (width<=1180px){.app-shell{grid-template-columns:190px minmax(0,1fr)}.sidebar{padding:30px 15px 18px}.workspace{padding:30px 25px}.learning-grid{grid-template-columns:minmax(0,1fr) 225px;gap:14px}.hero-copy{max-width:73%;padding:25px 20px}.hero-bird{top:22px;right:-75px;scale:.85}.hero-copy h2{font-size:28px}.hero-copy>p{max-width:220px}.course-sections{grid-template-columns:1fr;gap:25px}.course-grid.extension{grid-template-columns:repeat(3,1fr)}.course-card{min-height:174px;padding:18px}.course-icon{margin:0 0 15px}.course-card h3{font-size:15px}.course-level,.course-card-footer{font-size:12px}.weekly-card{padding:18px 13px}.mini-badge{display:none}.bar-chart{gap:9px}.tip-signature{display:none}.login-layout{gap:35px}.login-panel{padding:35px 30px}.login-illustration>.bird{left:60px}.bubble{font-size:16px}.hello{right:-5px}.catalog-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.catalog-toolbar{gap:10px}.catalog-search{margin-left:0}.catalog-search input{width:130px}}@media (width<=900px){.workspace-header h1{font-size:25px}.workspace-header p,.workspace-header .eyebrow{font-size:12px}.level-picker>span{display:none}.learning-grid{grid-template-columns:1fr}.hero-card{min-height:315px}.hero-copy{max-width:66%;padding:28px}.hero-bird{right:-5px;scale:.95}.weekly-card{grid-template-columns:1fr 1fr;gap:0 25px;padding:20px;display:grid}.weekly-title{grid-column:1}.weekly-card>h2{grid-area:2/1}.bar-chart{border:0;grid-area:3/1/5;padding:0}.weekly-card>.streak{grid-area:1/2/3}.weekly-goal{grid-area:3/2}.weekly-card>.stat-row:last-child{grid-area:4/2}.course-grid.system{grid-template-columns:repeat(2,1fr)}.course-card{min-height:160px}.catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.login-layout{grid-template-columns:1fr 1fr;gap:24px;margin-top:45px}.login-story h1{font-size:40px}.login-story>p{font-size:15px}.login-illustration{height:285px}.login-illustration>.bird{transform-origin:0 0;left:0;scale:.8}.bubble{padding:12px;font-size:13px}.hello{top:40px}.confidence{bottom:35px;left:0}.story-bottom{flex-direction:column;gap:8px;font-size:12px}.login-panel{padding:30px 24px}.login-panel h2{font-size:30px}.login-panel>p,.login-panel .eyebrow{font-size:12px}.desktop-break{display:none}.login-note{font-size:12px}.login-note svg{display:none}.welcome-footer,.google-button{font-size:12px}.login-footer>span:nth-child(2){display:none}.practice-banner{gap:18px;padding:25px}.practice-banner h2{font-size:23px}.milestone-grid{gap:12px}.milestone-grid article{padding:20px 12px}}@media (width<=650px){.login-page{padding:22px 22px 24px}.login-header .logo{font-size:28px}.login-header>span{font-size:12px}.login-layout{grid-template-columns:1fr;gap:25px;max-width:420px;margin:30px auto 25px}.login-story{text-align:center;padding:0}.login-story .eyebrow{letter-spacing:1.5px;font-size:12px}.login-story h1{letter-spacing:-1.4px;margin:15px 0 12px;font-size:38px}.login-story>p{font-size:13px;line-height:1.6}.login-illustration{max-width:330px;height:210px;margin:5px auto -20px}.login-illustration>.bird{transform-origin:0 0;top:-15px;left:60px;scale:.66}.orbit{inset:20px 35px 12px}.hello{font-size:12px;top:30px;right:-5px}.confidence{font-size:12px;bottom:35px;left:0}.confidence svg{width:18px}.sparkle.one{font-size:26px;top:30px;left:25px}.sparkle.two{font-size:28px;bottom:30px;right:14px}.cloud-one{top:100px;left:0;scale:.7}.cloud-two,.story-bottom{display:none}.login-panel{border-radius:25px;padding:28px 25px}.welcome-icon{display:none}.login-panel h2{margin:10px 0 12px;font-size:28px}.login-panel h2 br{display:none}.login-panel .eyebrow,.login-panel>p{font-size:12px}.google-button{min-height:53px;margin-top:24px;font-size:14px}.login-note{margin-top:12px;font-size:12px}.login-divider{margin:22px 0 16px}.welcome-footer{margin-top:22px;padding-top:16px}.login-footer,.login-footer button{font-size:12px}.app-shell{display:block}.sidebar{display:none}.workspace{max-width:600px;padding:0 20px 97px}.mobile-header{justify-content:space-between;align-items:center;padding:20px 0;display:flex}.mobile-header .logo{font-size:28px}.mobile-header .logo-bird{width:43px;scale:.9}.workspace-header{align-items:flex-start;gap:10px;margin-top:10px}.workspace-header .eyebrow{letter-spacing:1.4px;margin-bottom:7px;font-size:12px}.workspace-header h1{letter-spacing:-.6px;max-width:260px;font-size:25px}.workspace-header p{max-width:245px;margin-top:6px;font-size:12px;line-height:1.6}.workspace-header h1 .wave{margin-left:0;font-size:24px}.level-picker{border-radius:12px;gap:6px;margin-top:2px;padding:10px 11px}.level-picker select{padding-right:16px;font-size:12px}.level-picker>svg{width:13px;right:8px}.preview-ribbon{margin:17px 0 13px;font-size:12px}.preview-ribbon button,.ribbon-detail{font-size:12px}.hero-card{background:radial-gradient(at 15% 10%,#fff9df,#0000 70%),linear-gradient(135deg,#fff3c4,#fff6d9);border-radius:23px;min-height:340px}.hero-copy{max-width:72%;padding:26px 22px}.hero-copy h2{margin:8px 0 10px;font-size:29px}.hero-copy>p{max-width:195px;font-size:12px}.hero-kicker{font-size:12px}.hero-bird{transform-origin:50%;top:38px;right:-80px;scale:.69}.hero-star{font-size:20px;top:22px;right:24px}.hero-star.small{top:125px;right:122px}.hero-clouds{background:radial-gradient(circle at 0 80%,#fffdf2 0 75px,#0000 76px),radial-gradient(circle at 65% 105%,#fffef7 0 78px,#0000 79px),radial-gradient(circle at 100% 110%,#fffdf0 0 105px,#0000 106px);height:120px;bottom:-35px}.lesson-progress{max-width:180px;margin:24px 0 23px}.hero-copy .primary-button{white-space:nowrap;min-height:48px;padding:12px 17px;font-size:13px}.hero-footnote{white-space:nowrap;font-size:12px}.weekly-card{border-radius:20px;gap:0 15px;padding:19px 15px}.weekly-title{font-size:12px}.weekly-card h2{font-size:27px}.weekly-card h2>span{font-size:14px}.bar-chart{gap:7px}.bar{width:11px;max-height:53px}.bar-chart small{font-size:12px}.stat-row{gap:5px;padding:9px 6px;font-size:12px}.stat-row>span:last-child{display:none}.weekly-goal{gap:6px;padding:10px 5px}.weekly-goal>div>span,.weekly-goal small{font-size:12px}.weekly-goal svg{width:18px}.course-sections{gap:25px;margin-top:28px}.section-heading h2{font-size:18px}.section-heading h2>span{letter-spacing:1px;margin-top:5px;font-size:12px}.section-heading button{font-size:12px}.course-grid.system,.course-grid.extension{grid-template-columns:1fr;gap:10px}.course-grid .course-card{background:linear-gradient(130deg,#fff,#fcfeff);border:1px solid #e3edf7;border-radius:16px;outline:0;grid-template-rows:auto auto;grid-template-columns:49px minmax(0,1fr) 20px;align-items:center;gap:2px 14px;min-height:83px;padding:14px 15px;display:grid;box-shadow:0 3px 8px #a4c4da08}.course-grid .course-icon{border-radius:15px;grid-row:1/3;width:48px;height:48px;margin:0}.course-grid .course-card h3{grid-column:2;align-self:end;font-size:15px}.course-grid .course-level{grid-column:2;align-self:start;margin:0;font-size:12px}.course-grid .course-card-footer{border:0;grid-area:1/3/3;margin:0;padding:0}.course-grid .course-card-footer span{display:none}.course-grid .course-card-footer svg{width:18px;height:18px}.daily-tip{gap:12px;margin-top:24px;padding:15px 13px}.daily-tip strong{font-size:12px}.daily-tip p{font-size:12px;line-height:1.7}.tip-icon{flex-shrink:0;width:34px;height:38px}.mobile-nav{padding:12px 12px max(15px, env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);z-index:10;background:#fffffff5;border-top:1px solid #e7eef5;justify-content:space-around;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -5px 20px #a1c5dc0d}.mobile-nav button{color:#869bb3;background:0 0;flex-direction:column;flex:1;align-items:center;gap:5px;min-width:0;padding:2px 4px;font-size:12px;display:flex}.mobile-nav button.active{color:#149bf5}.mobile-nav button.active svg{fill:#149bf518}.workspace-footer{margin-top:27px;font-size:12px}.catalog-toolbar{gap:10px;margin:22px 0}.tabs{justify-content:space-around;width:100%}.tabs button{flex:1;font-size:12px}.catalog-search{flex:1;min-width:0}.catalog-search input{width:100%;font-size:12px}.catalog-toolbar>select{max-width:100px}.catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.catalog-grid .course-card{min-height:201px;padding:17px 13px}.catalog-grid .course-card h3{font-size:14px}.catalog-grid .course-card .course-icon{width:49px;height:49px;margin-bottom:15px}.catalog-grid .course-card-footer{font-size:12px}.practice-banner{align-items:flex-start;gap:14px;padding:23px 18px}.practice-mic{border-radius:16px;width:45px;height:52px}.practice-mic svg{width:25px}.practice-banner .eyebrow{font-size:12px;line-height:1.8}.practice-banner h2{font-size:23px;line-height:1.25}.practice-banner p{font-size:12px;line-height:1.7}.practice-card{padding:20px 14px}.practice-card h3{font-size:16px}.practice-card p{margin-bottom:20px;font-size:12px;line-height:1.6}.practice-card>span:last-child{font-size:12px}.milestone-grid{grid-template-columns:1fr}.milestone-grid article{padding:25px}.milestones .section-heading{align-items:flex-start}.sample-label{font-size:12px;line-height:1.6}.milestones h2{font-size:18px}dialog{border-radius:22px;padding:23px 20px}.dialog-head h2{font-size:21px}.dialog-description{font-size:14px}.lesson-body>h2{font-size:27px}.lesson-controls .primary-button,.lesson-controls .secondary-button{padding:12px 14px;font-size:12px}.toast{font-size:12px;top:12px}.read-aloud{padding:15px 12px;font-size:12px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.live-state{color:#7991a8;text-align:center;background:#ffffff90;border:1px dashed #dceaf4;border-radius:17px;flex-direction:column;justify-content:center;align-items:center;gap:15px;min-height:180px;padding:30px 20px;font-size:14px;line-height:1.6;display:flex}.live-state small{font-size:12px}.live-lessons{gap:10px;display:grid}.live-lessons>button{text-align:left;background:#fff;border:1px solid #e1edf5;border-radius:14px;align-items:center;gap:13px;padding:16px;display:flex}.live-lessons strong{flex:1;font-size:14px;font-weight:600}.lesson-number{color:#159ef4;background:#eaf7ff;border-radius:9px;padding:8px;font-size:12px}.live-vocabulary{gap:13px;display:grid}.live-vocabulary article{background:#fff;border:1px solid #e2edf5;border-radius:15px;padding:18px}.live-vocabulary article>div{align-items:center;gap:12px;display:flex}.live-vocabulary h3{font-size:19px}.live-vocabulary article>div>span{color:#7c96a9;font-size:12px}.live-vocabulary .icon-button{color:#159ef4;margin-left:auto}.live-vocabulary p{color:#708aa1;margin-top:10px;font-size:14px;line-height:1.7}.text-listen{color:#159ef4;background:0 0;align-items:center;gap:6px;margin-top:12px;font-size:12px;display:flex}.live-pagination{color:#7892a8;justify-content:center;align-items:center;gap:20px;margin:20px 0;font-size:12px;display:flex}.live-pagination button{background:#fff;border:1px solid #dfebf4;border-radius:10px;place-items:center;width:34px;height:34px;display:grid}.extension-label{margin:28px 0 18px;font-size:19px}.extension-label small{color:#90a5b8;margin-left:10px;font-size:12px;font-weight:400}.live-system{min-width:0}.live-system .section-heading h2{overflow-wrap:anywhere}.live-system .section-heading{align-items:flex-start}html{scrollbar-gutter:stable}.live-system{overflow-anchor:none}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.language-switcher{color:#66829a;background:#fff;border:1px solid #e0ecf6;border-radius:12px;flex-shrink:0;align-items:center;gap:8px;max-width:100%;padding:10px 12px;display:inline-flex}.language-switcher select{color:#3a5875;background:0 0;border:0;min-width:85px;max-width:145px;padding:3px 2px;font-size:13px}.header-settings{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:10px;display:flex}.workspace-header>div:first-child{flex:1;min-width:0}.workspace-header h1,.login-story h1,.login-panel h2{overflow-wrap:break-word}:lang(zh-CN) .eyebrow,:lang(zh-TW) .eyebrow,:lang(ko) .eyebrow,:lang(ja) .eyebrow{letter-spacing:1px}:lang(de) .sidebar nav>button{gap:9px;padding-inline:10px}:lang(de) .nav-label{letter-spacing:.8px}:lang(de) .hero-footnote{white-space:normal}:lang(de) .section-heading h2>span{letter-spacing:.4px}.preview-ribbon>span{flex-wrap:wrap}.hero-copy .primary-button{white-space:normal}@media (width<=900px){.header-settings{max-width:180px}.language-switcher{padding:8px}.language-switcher select{font-size:12px}}@media (width<=650px){.workspace-header{flex-wrap:wrap}.header-settings{order:2;justify-content:space-between;width:100%;max-width:none;margin-top:5px}.header-settings .level-picker{margin-top:0}.workspace-header>div:first-child{flex-basis:100%}.workspace-header h1,.workspace-header p{max-width:none}.language-switcher select{font-size:12px}.login-header .language-switcher{gap:5px;padding:8px}.login-header .language-switcher select{min-width:75px;max-width:110px}.story-bottom{flex-wrap:wrap}.login-note{text-align:center;line-height:1.5}.welcome-footer{text-align:center;line-height:1.6}.hero-footnote{white-space:normal}.hero-copy .primary-button{font-size:12px}.lesson-controls{flex-wrap:wrap}}.welcome-art-row{justify-content:space-between;align-items:center;gap:24px;min-height:92px;margin-bottom:24px;display:flex}.welcome-art-row .welcome-icon{margin-bottom:0}.welcome-bird-scene{pointer-events:none;flex-shrink:0;width:116px;height:100px;position:relative}.welcome-bird-halo{background:radial-gradient(circle,#fff2b9,#eef9ff 72%);border-radius:50%;position:absolute;inset:9px 6px 1px 16px;transform:rotate(-15deg)}.welcome-bird-sprite{mix-blend-mode:multiply;background:url(/brand-guide.png) -12px -141px/494px 329px;width:98px;height:98px;animation:6s ease-in-out -1s infinite float;position:absolute;top:3px;left:7px}.welcome-bird-spark{color:#ffc633;font-size:22px;position:absolute;top:0;right:0}.welcome-bird-dot{background:#27c9b8;border-radius:50%;width:6px;height:6px;position:absolute;bottom:15px;left:0}@media (width<=650px){.welcome-art-row{min-height:54px;margin-bottom:18px}.welcome-art-row .welcome-icon{border-radius:16px;width:46px;height:46px;display:grid}.welcome-art-row .welcome-icon svg{width:24px}.welcome-bird-scene{width:78px;height:62px}.welcome-bird-sprite{background-position:-8px -93px;background-size:325px 217px;width:63px;height:63px;top:0;left:5px}.welcome-bird-halo{inset:4px 4px 0 7px}.welcome-bird-spark{font-size:16px}.welcome-bird-dot{width:4px;height:4px;bottom:7px}}.language-switcher.animated-language{z-index:20;background:#fff;padding:0;transition:border-color .2s,box-shadow .2s;display:inline-flex;position:relative;overflow:visible}.animated-language:focus-within{border-color:#b1dcf7;box-shadow:0 0 0 3px #e9f6ff}.language-trigger{color:#547693;background:0 0;border-radius:12px;justify-content:space-between;align-items:center;gap:12px;width:100%;min-width:137px;min-height:44px;padding:13px 15px;font-size:13px;display:flex}.language-trigger:hover:not(:disabled){background:#f4faff;transform:none}.language-trigger:active{background:#eaf6ff}.language-trigger>span{text-align:left;white-space:nowrap;flex:1}.language-chevron{color:#6f91ab;transition:transform .3s cubic-bezier(.2,.8,.2,1)}.language-chevron.expanded{transform:rotate(180deg)}.language-menu{-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);transform-origin:100% 0;opacity:0;visibility:hidden;pointer-events:none;background:#fffffff9;border:1px solid #e1edf7;border-radius:17px;min-width:192px;padding:7px;transition:opacity .16s,transform .2s cubic-bezier(.4,0,.2,1),visibility 0s .2s;position:absolute;top:calc(100% + 10px);right:0;transform:translateY(-8px)scale(.94);box-shadow:0 16px 42px #315d8026,0 3px 9px #315d800d}.language-menu.is-open{opacity:1;visibility:visible;pointer-events:auto;transition:opacity .16s,transform .32s cubic-bezier(.2,1.35,.35,1),visibility;transform:translateY(0)scale(1)}.language-menu-caption{color:#94a9bc;letter-spacing:.5px;padding:8px 11px 10px;font-size:12px}.language-option{color:#5e7892;text-align:left;background:0 0;border-radius:10px;justify-content:space-between;align-items:center;gap:12px;width:100%;min-height:41px;margin:2px 0;padding:10px 12px;font-size:13px;display:flex}.language-option:hover:not(:disabled),.language-option:focus-visible{color:#168ed7;background:#f0f8ff;outline:none;transform:none}.language-option.selected{color:#098fdf;background:#e8f6ff;font-weight:600}@media (width<=650px){.login-header .language-switcher.animated-language{padding:0}.language-trigger{gap:9px;min-width:128px;padding:10px 12px;font-size:12px}.language-menu{min-width:180px}.header-settings .language-menu{transform-origin:0 0;left:0;right:auto}}@media (prefers-reduced-motion:reduce){.language-menu,.language-menu.is-open,.language-chevron{transition:none;transform:none}.language-chevron.expanded{transform:rotate(180deg)}}.animated-language .language-trigger:focus,.animated-language .language-trigger:focus-visible{outline:none}.animated-language.keyboard-focus:focus-within{border-color:#8fcaf0;box-shadow:0 0 0 3px #d9efff}.animated-language:has(.language-trigger:focus-visible){border-color:#8fcaf0;box-shadow:0 0 0 3px #d9efff}.animated-language .language-option:focus-visible{outline:none}.animated-language.keyboard-focus .language-option:focus{box-shadow:inset 0 0 0 2px #8acbf5}.cefr-select .language-trigger{gap:14px;min-width:170px}.language-trigger>.select-prefix{color:#7e90a6;border-right:1px solid #e7eef5;flex:0 auto;padding-right:14px;font-size:12px;font-weight:400}.cefr-select .language-trigger>span:not(.select-prefix){color:#253d5a;font-weight:650}.catalog-level-select .language-trigger{min-width:118px}.animated-language:has(.language-menu.is-open){z-index:25}.language-menu{overscroll-behavior:contain;max-height:min(390px,65dvh);overflow-y:auto}@media (width<=650px){.cefr-select .language-trigger{gap:9px;min-width:150px}.language-trigger>.select-prefix{padding-right:9px;font-size:12px}.catalog-level-select .language-trigger{min-width:100px}.catalog-level-select .language-menu{left:auto;right:0}}.study-controls{background:#eff9ff;border:1px solid #d9edf9;border-radius:15px;flex-wrap:wrap;align-items:center;gap:13px;padding:18px;display:flex}.study-controls p{flex:1;min-width:180px;margin:0;font-size:13px;line-height:1.7}.study-controls p[role=alert]{color:#b26b4b;flex-basis:100%}.study-controls .primary-button{font-size:12px}.reviewed-button{min-height:36px;margin-top:12px;padding:9px 12px;font-size:12px}.real-study-hero .hero-copy{max-width:100%;padding:30px}.real-study-totals{color:#5c87a6;flex-wrap:wrap;gap:20px;margin-top:30px;font-size:13px;display:flex}.real-study-totals span{align-items:center;gap:8px;display:flex}.real-weekly{display:block!important}.real-weekly .bar-chart{display:flex}.real-progress-list{margin:25px 0}.progress-record{text-align:left;color:#50718a;background:#fff;border:1px solid #e2edf5;border-radius:13px;justify-content:space-between;align-items:center;gap:15px;width:100%;margin:9px 0;padding:16px 20px;font-size:13px;display:flex}.progress-record small{color:#8ba0b3;margin-top:7px;display:block}.progress-record>span:last-child{align-items:center;gap:10px;display:flex}.study-goals{background:#fff;border:1px solid #dfedf8;border-radius:15px;flex-wrap:wrap;align-items:end;gap:18px;margin-top:20px;padding:22px;display:flex}.study-goals label{color:#7490a7;gap:10px;font-size:13px;display:grid}.study-goals input{border:1px solid #dce9f3;border-radius:9px;max-width:180px;padding:10px}.study-error{color:#a95f49;padding:15px;font-size:13px}.learning-goals-dialog{width:460px;margin:auto}.learning-goals-dialog[open]{animation:.2s ease-out goal-dialog-in}.learning-goals-dialog .study-goals{border:0;gap:22px;margin:0;padding:0;display:grid}.learning-goals-dialog .study-goals label{color:#425c76;font-size:15px}.learning-goals-dialog .study-goals input{box-sizing:border-box;width:100%;max-width:none;padding:14px;font-size:17px}.learning-goals-dialog .primary-button{justify-content:center}.goal-close{color:#7890a6;background:#f1f7fc;border-radius:50%;place-items:center;padding:9px;display:grid}.goal-close:hover{color:#1899ef;background:#e2f2ff}@keyframes goal-dialog-in{0%{opacity:0;transform:translateY(10px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}@media (prefers-reduced-motion:reduce){.learning-goals-dialog[open]{animation:none}}.audio-spinner{animation:1s linear infinite audio-spin}@keyframes audio-spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){.audio-spinner{animation:none}}.unit-catalog-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;max-width:1200px;margin-inline:auto;display:grid}.unit-catalog-grid .unit-art-card{background:#fff;border:1px solid #e5edf3;border-radius:24px;outline:none;min-height:0;padding:0;transition:transform .2s,box-shadow .2s,border-color .2s;box-shadow:0 3px 5px #203c5603,0 12px 28px #203c5606}.unit-art-card.blue{--cover:#e3f5ff;--cover-deep:#b8e7fb}.unit-art-card.yellow{--cover:#fff4d7;--cover-deep:#ffe5a2}.unit-art-card.coral{--cover:#ffece5;--cover-deep:#ffd1bf}.unit-art-card.mint{--cover:#e0f6ee;--cover-deep:#b8e8d8}.unit-cover{isolation:isolate;background:linear-gradient(145deg,var(--cover),#fff 150%);width:100%;display:block;position:relative;overflow:hidden}.unit-cover:before{content:"";z-index:-1;background:linear-gradient(145deg,#ffffffa6,var(--cover-deep));border-radius:50%;width:210px;height:210px;position:absolute;top:38px;left:50%;transform:translate(-50%);box-shadow:0 0 0 22px #ffffff35}.unit-cover:after{content:"";z-index:-1;border:1px solid #ffffffb0;border-radius:50%;width:120px;height:120px;position:absolute;top:-30px;right:-60px}.unit-art-card .unit-artwork{color:#28a5e7;box-sizing:border-box;justify-content:center;align-items:center;width:100%;height:212px;padding:28px 26px 8px;display:flex}.unit-artwork img{object-fit:contain;filter:drop-shadow(0 10px 7px #33556814);width:100%;height:100%;transition:transform .25s;display:block}.unit-level-badge{z-index:1;letter-spacing:.25px;color:#38566a;background:#ffffffb8;border:1px solid #ffffffc9;border-radius:8px;padding:5px 10px;font-size:12px;font-weight:800;line-height:1.5;position:absolute;top:16px;left:18px}.unit-card-body{box-sizing:border-box;flex-direction:column;flex:1;width:100%;padding:20px 24px 18px;display:flex}.unit-card-heading{flex:1;display:block}.unit-catalog-grid .unit-art-card h3{letter-spacing:-.3px;color:#20384b;margin:0;font-size:19px;font-weight:800;line-height:1.4}.unit-catalog-grid .course-card-footer{color:#527286;border:0;justify-content:space-between;align-items:center;gap:12px;min-height:40px;margin:16px 0 0;padding:0;font-size:13px;font-weight:650;display:flex}.unit-art-card .course-card-footer>span{align-items:center;gap:7px;display:flex}.unit-art-card .unit-action-icon{color:#208ec6;background:#eaf5fc;border-radius:50%;flex:0 0 38px;justify-content:center;width:38px;height:38px;transition:background .2s,color .2s}.unit-catalog-grid .unit-art-card:hover{border-color:#bdddec;transform:translateY(-4px);box-shadow:0 14px 32px #31577516}.unit-art-card:hover .unit-action-icon{color:#fff;background:#168fd1}.unit-art-card:hover .unit-artwork img{transform:translateY(-3px)rotate(-2deg)}.unit-catalog-grid .unit-art-card:focus-visible{outline-offset:4px;outline:3px solid #168dcc}@media (width<=1000px){.unit-catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=600px){.unit-catalog-grid{grid-template-columns:1fr;gap:20px}.unit-card-body{padding:18px 22px}.unit-art-card .unit-artwork{height:200px}}@media (prefers-reduced-motion:reduce){.unit-catalog-grid .unit-art-card,.unit-artwork img,.unit-art-card .unit-action-icon{transition:none}.unit-catalog-grid .unit-art-card:hover,.unit-art-card:hover .unit-artwork img{transform:none}}.unit-english-title{letter-spacing:0;color:#637e91;overflow-wrap:anywhere;margin-top:6px;font-size:13px;font-weight:500;line-height:1.5;display:block}.lesson-title{text-align:left;flex-direction:column;flex:1;gap:5px;min-width:0;display:flex}.lesson-title small{color:#637e91;overflow-wrap:anywhere;font-size:13px;font-weight:500;line-height:1.5}.section-heading h2 .unit-english-title{letter-spacing:0;text-transform:none;font-size:14px}.live-vocabulary article .word-translation{color:#527286;margin-top:6px;font-size:15px}.live-vocabulary article .example-translation{color:#637e91;margin-top:5px;font-size:14px;line-height:1.6}.immersive-vocabulary{gap:22px;max-width:860px;margin:0 auto}.flashcard-progress{color:#7890a6;gap:12px;font-size:14px;display:grid}.flashcard-progress .track{height:5px}.immersive-vocabulary .word-flashcard{text-align:center;background:radial-gradient(at top,#edf9ff,#fff 65%);border-radius:30px;flex-direction:column;justify-content:center;align-items:center;min-height:390px;padding:56px 40px 32px;animation:.24s ease-out word-card-enter;display:flex;box-shadow:0 16px 50px #25364a0a}.immersive-vocabulary .word-flashcard>div{flex-wrap:wrap;justify-content:center;gap:14px}.immersive-vocabulary .word-flashcard h3{overflow-wrap:anywhere;font-size:clamp(30px,5vw,54px);line-height:1.2}.immersive-vocabulary .word-flashcard>div>span{background:#e4f5ff;border-radius:20px;padding:5px 12px;font-size:14px}.immersive-vocabulary .word-flashcard .icon-button{background:#e1f3ff;border-radius:50%;width:48px;height:48px;margin:0}.immersive-vocabulary .word-flashcard p{max-width:620px;margin-top:24px;font-size:20px}.immersive-vocabulary .word-flashcard .word-translation{margin-top:14px;font-size:20px}.immersive-vocabulary .word-flashcard .example-translation{margin-top:8px;font-size:16px}.immersive-vocabulary .word-flashcard .text-listen{margin-top:20px;font-size:15px}.immersive-vocabulary .reviewed-button{margin-top:28px}.flashcard-navigation{justify-content:space-between;gap:16px;display:flex}.flashcard-navigation button{justify-content:center}.flashcard-navigation button:disabled{opacity:.4;cursor:default;transform:none}.immersive-vocabulary>small{text-align:center}@keyframes word-card-enter{0%{opacity:.2;transform:translateY(10px)scale(.985)}to{opacity:1;transform:none}}@media (width<=600px){.immersive-vocabulary .word-flashcard{min-height:360px;padding:32px 20px}.flashcard-navigation button{flex:1;padding:12px}}@media (prefers-reduced-motion:reduce){.immersive-vocabulary .word-flashcard{animation:none}}.live-vocabulary .word-phonetic{color:#526b82;letter-spacing:.02em;margin:6px 0 10px;font-family:Noto Sans,Arial,sans-serif;font-size:16px;line-height:1.6}.immersive-vocabulary .word-flashcard .word-example{color:var(--ink);font-weight:600}.auto-study-timer{justify-content:space-between}.auto-study-timer strong{font-variant-numeric:tabular-nums;color:var(--ink);font-size:24px}.flashcard-navigation .flashcard-back{min-height:48px}@media (width<=600px){.flashcard-navigation{flex-wrap:wrap}.flashcard-navigation .flashcard-back{flex-basis:100%;order:3}}.word-example .vocabulary-highlight{color:#096999;-webkit-box-decoration-break:clone;box-decoration-break:clone;background:#dcf3ff;border-radius:4px;padding:.08em .15em;font-weight:800}body:has(>.study-page) #root{display:none}body:has(>.study-page){background:#f7fbff}.study-page{width:100%;min-height:100dvh;padding:28px max(24px, env(safe-area-inset-right)) max(32px, env(safe-area-inset-bottom));background:radial-gradient(at 50% 0,#eaf7ff 0%,#f7fbff 60%)}.study-page-brand{max-width:1000px;color:var(--ink);margin:0 auto 30px;font-size:25px;font-weight:850}.study-page>.live-system{width:100%;max-width:1000px;margin:0 auto}.study-page .section-heading{align-items:flex-start;gap:20px;margin-bottom:28px}.study-page .section-heading h2{max-width:75%}.study-page .section-heading>button{flex-shrink:0;min-height:44px}.study-page .immersive-vocabulary{width:100%;max-width:800px}.study-page .word-flashcard{min-height:min(440px,55dvh)}.study-page .flashcard-back{display:none}.study-page .flashcard-navigation>button{min-width:150px}@media (width<=600px){.study-page{padding:18px 18px max(24px, env(safe-area-inset-bottom))}.study-page-brand{margin-bottom:22px;font-size:22px}.study-page .section-heading{gap:12px;margin-bottom:22px}.study-page .section-heading h2{max-width:65%;font-size:21px}.study-page .word-flashcard{min-height:350px;padding:32px 22px}.study-page .flashcard-navigation>button{min-width:0}}.catalog-level-select.cefr-select .language-trigger{min-width:190px}@media (width<=650px){.catalog-level-select.cefr-select .language-trigger{min-width:170px}}.study-page .word-flashcard{padding-top:82px;position:relative}.study-page .word-flashcard .auto-study-timer{max-width:calc(100% - 44px);box-shadow:none;background:#eef8fd;border:0;border-radius:12px;justify-content:flex-end;gap:8px;padding:7px 12px;position:absolute;top:18px;right:22px}.study-page .word-flashcard .auto-study-timer p{flex:initial;min-width:0;max-width:100%;margin:0;font-size:14px;line-height:1.5}.study-page .word-flashcard .auto-study-timer strong{font-size:17px;line-height:1.5}.study-page .word-flashcard .auto-study-timer p[role=alert]{max-width:300px}@media (width<=600px){.study-page .word-flashcard{padding-top:80px}.study-page .word-flashcard .auto-study-timer{top:14px;right:16px}}.study-page .section-heading .study-course-title{flex-wrap:wrap;flex:1;align-items:baseline;gap:8px 18px;min-width:0;max-width:none;line-height:1.4;display:flex}.study-course-title strong{overflow-wrap:anywhere;font-size:clamp(22px,2.5vw,30px);font-weight:750}.study-page .study-course-title small{color:#6b8598;letter-spacing:0;text-transform:none;font-size:15px;font-weight:500}.immersive-vocabulary .word-flashcard>div>.word-audio-anchor{background:0 0;padding:0;display:inline-flex;position:relative}.study-help-row{justify-content:flex-end;display:flex}.study-help-button{color:#52768e;cursor:pointer;background:0 0;border:0;align-items:center;gap:6px;padding:8px;font-size:13px;display:inline-flex}.audio-coachmark{z-index:10;text-align:left;color:#28465e;background:#fff;border:1px solid #b6def4;border-radius:16px;width:min(280px,70vw);padding:20px;position:absolute;top:calc(100% + 14px);right:0;box-shadow:0 12px 40px #193c6026}.audio-coachmark:before{content:"";background:#fff;border-top:1px solid #b6def4;border-left:1px solid #b6def4;width:12px;height:12px;position:absolute;top:-7px;right:18px;transform:rotate(45deg)}.immersive-vocabulary .word-flashcard .audio-coachmark p{margin-top:10px;font-size:14px;line-height:1.6}.immersive-vocabulary .word-flashcard .audio-coachmark .text-listen{margin-top:12px}.study-page .section-heading{justify-content:flex-start;align-items:center}.study-page .section-heading .study-back-icon{background:#fff;border:1px solid #d9e9f2;border-radius:50%;justify-content:center;align-items:center;width:42px;height:42px;min-height:42px;padding:0;display:inline-flex}.study-page .word-flashcard .study-help-button{color:#5894b4;background:#edf7fd;border-radius:50%;justify-content:center;width:44px;height:44px;padding:8px;position:absolute;top:50%;right:-52px;transform:translateY(-50%)}.study-page .word-flashcard .word-heading{gap:14px}.study-page .word-flashcard .word-heading h3{font-size:clamp(30px,4.5vw,48px)}.study-page .word-flashcard .word-meta{align-items:center;gap:10px;margin-top:14px;display:flex}.study-page .word-flashcard .word-meta .word-phonetic{margin:0;font-size:17px}.study-page .word-flashcard .word-meta>span{color:#7892a4;background:#eef5f9;padding:3px 9px;font-size:16px}.study-page .word-flashcard .word-translation{margin-top:8px;font-size:18px}.study-page .word-flashcard .word-example{margin-top:28px}.example-audio-anchor{display:inline-block;position:relative}.example-coachmark{top:auto;bottom:calc(100% + 12px);right:50%;transform:translate(50%)}.example-coachmark:before{top:auto;bottom:-7px;right:calc(50% - 6px);transform:rotate(225deg)}@media (width<=600px){.study-page .word-flashcard{padding-left:16px;padding-right:16px}.study-page .word-flashcard .word-meta{gap:8px}}.study-page .word-flashcard .word-meta{flex-wrap:wrap;justify-content:center;gap:8px 14px}.study-page .word-flashcard .word-meta .word-translation{margin:0;font-size:17px;line-height:1.6}.study-page .word-flashcard{text-align:left;align-items:flex-start}.study-page .word-flashcard .word-heading,.study-page .word-flashcard .word-meta{justify-content:flex-start}.study-page .word-flashcard .word-example,.study-page .word-flashcard .example-translation{max-width:100%}.study-page .example-coachmark{left:0;right:auto;transform:none}.study-page .example-coachmark:before{left:24px;right:auto}.study-page .word-flashcard .word-audio-anchor>.icon-button{color:#fff;background:#193d5b}.study-page .word-flashcard .word-audio-anchor>.icon-button:hover{background:#102e47}.study-page .word-flashcard{justify-content:flex-start;padding-top:64px}@media (width<=600px){.study-page .word-flashcard{padding-top:60px}}.study-page{background:radial-gradient(at 50% 0,#edf7ff 0%,#f8fbfe 65%)}.study-page .immersive-vocabulary{padding-right:0}.study-page .section-heading .study-breadcrumb{color:#087bc3;background:#e7f3ff;border-radius:24px;flex:0 auto;align-items:center;gap:8px 10px;padding:10px 18px;display:flex}.study-page .study-breadcrumb strong{font-size:17px;font-weight:700}.study-page .study-breadcrumb small{color:#5b829c;font-size:13px}.study-page .study-breadcrumb>svg{flex-shrink:0}.study-page .section-heading .study-breadcrumb .breadcrumb-dot,.study-page .section-heading .study-breadcrumb .breadcrumb-label{letter-spacing:0;color:#087bc3;text-transform:none;margin:0;font-size:14px;font-weight:600;display:inline}.study-page .section-heading>.study-help-button{color:#148bd0;background:#fff;border:1px solid #d7e9f7;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;margin-left:auto;padding:8px;display:inline-flex}.study-page .word-flashcard{background:linear-gradient(145deg,#fff 45%,#f5faff);border-color:#deebf5;box-shadow:0 12px 36px #214b7008}.study-page .word-flashcard .word-meta>span{color:#58798f;background:#edf4f9}.study-page .word-flashcard .word-meta .word-phonetic,.study-page .word-flashcard .word-meta .word-translation{color:#526e84}.study-page .word-flashcard .auto-study-timer{background:#f0f6fa}.study-page .vocabulary-highlight{color:#087bb8;background:#def1ff}.study-page .flashcard-navigation .primary-button{background:#25a8ef;box-shadow:0 6px 16px #25a8ef1a}@media (width<=600px){.study-page .section-heading{gap:8px}.study-page .section-heading .study-breadcrumb{flex:1;padding:9px 12px}.study-page .study-breadcrumb strong{font-size:15px}}.study-empty-heading{display:none}.study-page .word-flashcard{padding-top:24px;padding-bottom:78px}.study-page .word-flashcard>.card-course-header{flex-wrap:nowrap;justify-content:flex-start;align-items:center;gap:10px;width:100%;margin-bottom:48px;padding-right:0;display:flex}.card-course-header .study-back-icon{color:#148bd0;background:#fff;border:1px solid #d9e9f2;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:38px;height:38px;padding:0;display:inline-flex}.study-page .card-course-header .study-breadcrumb{color:#087bc3;background:#e7f3ff;border-radius:20px;flex-wrap:wrap;align-items:center;gap:6px 10px;margin:0;padding:9px 14px;line-height:1.4;display:flex}.study-page .word-flashcard .auto-study-timer{top:auto;bottom:18px;right:20px}.study-page .word-flashcard .study-help-button{inset:auto auto 16px 20px;transform:none}@media (width<=600px){.study-page .word-flashcard{padding-top:20px;padding-bottom:80px}.study-page .word-flashcard>.card-course-header{margin-bottom:32px}}.study-page .word-flashcard>.card-course-header{padding-right:175px}.study-page .word-flashcard .auto-study-timer{max-width:175px;top:24px;bottom:auto;right:20px}@media (width<=600px){.study-page .word-flashcard>.card-course-header{margin-bottom:12px;padding-right:0}.study-page .word-flashcard .auto-study-timer{align-self:flex-end;max-width:100%;margin:0 0 20px;position:static}}.study-page .word-flashcard .word-card-count{color:#6b8598;font-variant-numeric:tabular-nums;font-size:14px;font-weight:600;line-height:1.5;position:absolute;bottom:26px;right:24px}.study-page .word-flashcard .example-audio-anchor>.text-listen{color:#fff;background:#193d5b;border:1px solid #193d5b;border-radius:999px;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:11px 18px;font-weight:600;display:inline-flex}.study-page .word-flashcard .example-audio-anchor>.text-listen:hover{background:#102e47;border-color:#102e47}.study-page .flashcard-navigation>button{border-radius:999px}.unit-card-heading h3{align-items:baseline;gap:10px;display:flex}.unit-number{color:#54809a;font-variant-numeric:tabular-nums;flex-shrink:0;font-size:.8em;font-weight:800}.unit-course-count{color:#607d94;margin-top:12px;font-size:14px;font-weight:600;display:block}.lesson-word-count{color:#607d94;white-space:nowrap;flex-shrink:0;font-size:14px;font-weight:600}@media (width<=600px){.lesson-word-count{font-size:12px}}.language-menu{max-height:min(65vh,480px);overflow-y:auto}[dir=rtl] .word-text,[dir=rtl] .word-example{direction:ltr;unicode-bidi:isolate}[dir=rtl] .language-menu{text-align:start}[dir=rtl] .word-translation,[dir=rtl] .example-translation{unicode-bidi:plaintext}.sidebar-language{margin-top:24px}.sidebar-language .animated-language{width:100%}.sidebar-language .language-trigger{gap:8px;min-width:0;padding:12px}.sidebar-language+.nav-label{margin-top:26px}.sidebar-language .language-menu{transform-origin:0 0;left:0;right:auto}.mobile-header{gap:10px}.mobile-language{min-width:0;margin-inline-start:auto}.mobile-language .language-trigger{gap:6px;min-width:0;padding:10px}.mobile-language .language-menu{left:auto;right:0}.header-settings:empty{display:none}.catalog-header{flex-wrap:wrap;align-items:center;gap:20px;margin-bottom:28px}.catalog-header .catalog-toolbar{margin:0;flex-shrink:0;margin-inline-start:auto}.catalog-header .catalog-search{margin:0}@media (width<=900px){.catalog-header .catalog-toolbar{flex-shrink:1;width:100%;margin-inline-start:0}}.sidebar nav>button,.language-trigger,.language-option,.catalog-search input,.catalog-toolbar select,.section-heading button,.primary-button,.secondary-button,.text-button,.tabs button{font-size:14px}.workspace-header p,.practice-banner p,.daily-tip p{font-size:16px;line-height:1.6}.nav-label{white-space:normal;letter-spacing:.6px;line-height:1.5}.sidebar nav>button{overflow-wrap:anywhere}.sidebar nav>button svg{flex-shrink:0}.mini-badge,.sample-label,.workspace-footer{line-height:1.5}.workspace-footer,.stat-row{flex-wrap:wrap}.mobile-nav button{overflow-wrap:anywhere;line-height:1.35}@media (width<=650px){.mobile-header{flex-wrap:wrap}.catalog-header .catalog-toolbar{align-items:stretch}.catalog-header .catalog-search{flex:180px}.catalog-level-select{max-width:100%}.mobile-nav button{font-size:12px}.catalog-search input{font-size:16px}}.sliding-nav{isolation:isolate;position:relative}.sliding-nav>.nav-selection{z-index:-1;pointer-events:none;background:linear-gradient(100deg,#e3f5ff,#d9f0ff);border-radius:13px;transition:transform .3s cubic-bezier(.22,1,.36,1),width .3s,height .3s;position:absolute;top:0;left:0}.sidebar .sliding-nav>button.active{background:0 0}.sliding-nav>button{transition:color .18s}.sidebar-language+.sliding-nav{border-top:1px solid #e2edf6;margin-top:22px;padding-top:22px}.mobile-nav.sliding-nav{position:fixed}.mobile-nav .nav-selection{border-radius:12px}.course-loading{justify-content:center;align-items:center;gap:12px;display:flex}.course-loading-spinner{border:3px solid #dceef8;border-top-color:#149bf5;border-radius:50%;flex:none;width:22px;height:22px;animation:.8s linear infinite course-loading-spin}.course-content-enter{animation:.32s ease-out both course-content-arrive}@keyframes course-loading-spin{to{transform:rotate(360deg)}}@keyframes course-content-arrive{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:reduce){.sliding-nav>.nav-selection,.sliding-nav>button{transition:none}.course-loading-spinner,.course-content-enter{animation:none}}.compact-page-enter{animation:.36s cubic-bezier(.22,1,.36,1) both compact-page-arrive}.unit-catalog-grid.compact-page-enter>button:disabled{opacity:1;cursor:progress}@keyframes compact-page-arrive{0%{opacity:.9;transform:translate(4px)}to{opacity:1;transform:translate(0)}}@media (prefers-reduced-motion:reduce){.compact-page-enter{animation:none}}.navigation-guide{width:100%;position:relative}.navigation-coachmark{z-index:30;color:#28465e;background:#fff;border:1px solid #b6def4;border-radius:16px;width:min(600px,100%);max-height:min(360px,55dvh);margin:0;padding:20px;position:absolute;bottom:calc(100% + 16px);left:50%;overflow-y:auto;transform:translate(-50%);box-shadow:0 12px 32px #193c6014}.navigation-coachmark p{margin-top:12px;font-size:14px;line-height:1.6}.coachmark-actions{flex-wrap:wrap;gap:12px;margin-top:14px;display:flex}.navigation-coachmark .shortcut-note{color:#607d94}.study-page .flashcard-navigation .flashcard-back{display:inline-flex}.study-page .flashcard-navigation{flex-wrap:wrap}.study-page .flashcard-navigation>button{flex:150px;justify-content:center;min-width:0}.flashcard-navigation .coachmark-target{outline-offset:4px;outline:3px solid #25a8ef}.flashcard-navigation .coachmark-target:disabled{opacity:.7}.flashcard-navigation kbd,.audio-coachmark kbd{font:inherit;border:1px solid;border-radius:5px;padding:1px 5px;font-size:12px}.navigation-coachmark .text-listen,.immersive-vocabulary .word-flashcard .audio-coachmark .text-listen{font-size:15px;line-height:1.5}.live-system .section-heading:has(.unit-list-back){flex-wrap:nowrap;justify-content:flex-start;align-items:flex-start;gap:14px;display:flex}.live-system .section-heading:has(.unit-list-back) h2{overflow-wrap:anywhere;min-width:0}.live-system .section-heading .unit-list-back{color:#25364a;background:#fff;border:1px solid #dce9f2;border-radius:12px;flex:0 0 44px;justify-content:center;align-items:center;width:44px;height:44px;min-height:44px;padding:0;transition:background .2s,border-color .2s;display:inline-flex;box-shadow:0 2px 4px #25364a04}.unit-back-icon{justify-content:center;align-items:center;display:inline-flex}.unit-back-icon svg{width:20px;height:20px;transition:transform .2s}.live-system .section-heading .unit-list-back:hover{background:#eaf6ff;border-color:#b9def6;transform:none}.unit-list-back:hover .unit-back-icon svg{transform:translate(-2px)}@media (prefers-reduced-motion:reduce){.live-system .section-heading .unit-list-back,.unit-back-icon svg{transition:none}.unit-list-back:hover .unit-back-icon svg{transform:none}}.word-feedback{color:#607d94;align-self:center;margin-top:24px;font-size:14px}.word-feedback-trigger{color:#607d94;background:0 0;border-radius:10px;align-items:center;gap:6px;padding:8px 12px;font-size:14px;display:inline-flex}.word-feedback-trigger:hover{background:#eaf4fb}.word-feedback dialog{text-align:start;color:#25364a;width:min(480px,100vw - 32px)}.word-feedback form>p{margin:12px 0;font-size:14px;line-height:1.6}.word-feedback label{gap:8px;margin:18px 0;font-size:14px;display:grid}.word-feedback select,.word-feedback textarea{color:#25364a;width:100%;font:inherit;background:#fff;border:1px solid #d5e4ef;border-radius:10px;padding:12px}.word-feedback textarea{resize:vertical}.word-card-tools{align-items:center;gap:8px;display:flex;position:absolute;bottom:16px;left:20px}.study-page .word-flashcard .word-card-tools .study-help-button{flex-shrink:0;position:static;transform:none}.word-card-tools .word-feedback{margin:0}.word-feedback>[role=status]{background:#edf7fd;border-radius:10px;width:max-content;max-width:240px;padding:8px;position:absolute;bottom:100%;left:0}.word-feedback .feedback-dialog{background:linear-gradient(155deg,#fff 65%,#f3faff);margin:auto;position:fixed;inset:0;box-shadow:0 24px 80px #163c5726}.feedback-dialog.is-visible[open]{animation:.26s cubic-bezier(.2,.8,.2,1) both feedback-enter}.feedback-dialog.is-visible[open]::backdrop{animation:.26s both feedback-backdrop-in}.feedback-dialog.is-closing[open]{pointer-events:none;animation:.18s both feedback-exit}.feedback-dialog.is-closing[open]::backdrop{animation:.18s both feedback-backdrop-out}.word-feedback .feedback-kind{border:0;min-width:0;margin:18px 0;padding:0;font-size:14px}.feedback-kind legend{margin-bottom:8px;padding:0}.word-feedback .feedback-select{width:100%}.feedback-select .language-menu{width:100%;min-width:0;max-height:260px;overflow-y:auto}.feedback-select .language-trigger,.feedback-select .language-option{font-size:14px}.word-feedback textarea{transition:border-color .18s,box-shadow .18s}.word-feedback textarea:focus{border-color:#9dd8fa;outline:none;box-shadow:0 0 0 3px #e9f6ff}@keyframes feedback-enter{0%{opacity:0;transform:translateY(14px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes feedback-exit{0%{opacity:1;transform:translateY(0)scale(1)}to{opacity:0;transform:translateY(8px)scale(.98)}}@keyframes feedback-backdrop-in{0%{opacity:0}to{opacity:1}}@keyframes feedback-backdrop-out{0%{opacity:1}to{opacity:0}}@media (prefers-reduced-motion:reduce){.feedback-dialog[open],.feedback-dialog[open]::backdrop{animation-duration:1ms}.feedback-select .language-menu,.feedback-select .language-chevron{transition:none}}.word-feedback .dialog-head{justify-content:center;min-height:48px;padding-inline:48px;position:relative}.word-feedback .dialog-head h2{text-align:center}.word-feedback .dialog-head .icon-button{inset-inline-end:0;position:absolute;top:0}.word-feedback input[type=email]{color:#25364a;width:100%;font:inherit;background:#fff;border:1px solid #d5e4ef;border-radius:10px;padding:12px;transition:border-color .18s,box-shadow .18s}.word-feedback input[type=email]:focus{border-color:#9dd8fa;outline:none;box-shadow:0 0 0 3px #e9f6ff}.word-card-tools{pointer-events:none;justify-content:center;min-height:44px;right:20px}.study-page .word-flashcard .word-card-tools .study-help-button{pointer-events:auto;position:absolute;bottom:0;left:0}.word-card-tools .word-feedback{pointer-events:auto}.lesson-transition-toast{top:max(24px, env(safe-area-inset-top));color:var(--ink);z-index:100;pointer-events:none;background:#f0f8ff;border-color:#cce5f5;border-radius:28px;gap:16px;max-width:min(680px,100vw - 32px);padding:18px 28px 18px 18px;font-size:clamp(18px,2vw,22px);font-weight:800;line-height:1.5;left:50%;transform:translate(-50%);box-shadow:0 16px 48px #152c4b26}.lesson-transition-toast>.lesson-toast-mascot{background:url(/illustrations/mascot-expressions.png) 0 0/400% 300% no-repeat;flex:0 0 80px;width:80px;height:80px;display:block}.lesson-transition-toast>.lesson-toast-message{overflow-wrap:anywhere;min-width:0;max-width:520px}@media (width<=600px){.lesson-transition-toast{border-radius:22px;gap:10px;padding:14px 18px 14px 10px}.lesson-transition-toast>.lesson-toast-mascot{flex-basis:64px;width:64px;height:64px}}.course-review-entry{background:#eef7ff;border-radius:20px;justify-content:space-between;align-items:center;gap:20px;margin-bottom:24px;padding:20px 24px;display:flex}.course-review-entry h2{margin:0 0 6px;font-size:20px}.course-review-entry p{color:#526476;margin:0}.lesson-practice-actions{justify-content:center;gap:12px;margin:18px 0;display:flex}.lesson-practice-actions [aria-pressed=true]{color:#08669e;background:#e4f3ff;border-color:#1285cc}.lesson-recall,.lesson-practice-result{text-align:center;min-height:240px;padding:24px 16px}.lesson-recall h3{font-size:clamp(24px,4vw,36px);line-height:1.6}.lesson-practice-result button{margin:12px 6px}.navigation-guide[hidden]{display:none}@media (width<=600px){.course-review-entry{flex-direction:column;align-items:stretch}.lesson-practice-actions{flex-wrap:wrap}}.word-card-tools[hidden]{display:none}.lesson-recall .text-listen{margin:18px auto;display:flex}@media (width>=651px){.login-page .login-layout{grid-template-columns:minmax(0,1fr) minmax(320px,460px);align-items:start;gap:clamp(28px,5vw,72px);margin-top:32px}.login-page .login-story{padding-top:36px}.login-page .login-panel{border-radius:28px;padding:28px 30px}.login-page .login-panel h2{margin:10px 0 12px;font-size:30px;line-height:1.25}.login-page .login-panel>p{margin-block:10px 16px;font-size:13px;line-height:1.65}.login-page .welcome-art-row{min-height:66px;margin-bottom:14px}.login-page .welcome-art-row .welcome-icon{border-radius:16px;width:46px;height:46px}.login-page .welcome-bird-scene{width:82px;height:70px}.login-page .welcome-bird-sprite{transform-origin:0 0;scale:.7}.login-page .welcome-bird-spark{font-size:17px}.login-page .login-method-tabs{margin-top:18px}.login-page .email-auth{margin-block:16px}.login-page .email-auth label{margin-bottom:12px}.login-page .email-auth input{padding:12px 14px}.login-page .welcome-footer{margin-top:20px;padding-top:16px}}@media (width>=651px) and (width<=900px){.login-page .login-layout{grid-template-columns:minmax(0,1fr) minmax(300px,1fr);gap:24px}.login-page .login-panel{padding:24px}.login-page .login-panel h2{font-size:26px}}.login-page .login-story h1{letter-spacing:-1.6px;font-size:clamp(36px,3.6vw,54px);line-height:1.18}@media (width<=900px){.login-page .login-story h1{font-size:36px}}@media (width<=650px){.login-page .login-story h1{letter-spacing:-1px;font-size:32px}}.login-page{flex-direction:column;display:flex}.login-page .login-header{flex-shrink:0;width:100%;margin-block:0}.login-page .login-layout{flex-shrink:0;align-content:start;width:100%}.login-page .login-layout>section{align-self:start}.login-page .login-footer{flex-shrink:0;width:100%;margin-top:auto;margin-bottom:0}.workspace .learning-grid{grid-template-columns:minmax(0,2.15fr) minmax(260px,1fr);align-items:stretch;gap:24px}.learning-grid>.hero-card{min-height:390px;box-shadow:none;isolation:isolate;background:radial-gradient(at 10% 0,#d4f1ff 0%,#0000 65%),linear-gradient(155deg,#e5f5ff 5%,#f3faff 53%,#fff4d5 100%);border:1px solid #e0f1fb;border-radius:28px}.learning-grid .hero-copy{max-width:64%;padding:32px 30px}.learning-grid .hero-kicker{color:#159cf3;font-size:17px;font-weight:750}.learning-grid .hero-copy h2{letter-spacing:-1.1px;color:#102842;overflow-wrap:anywhere;margin:13px 0 15px;font-size:clamp(30px,2.8vw,45px);font-weight:850;line-height:1.12}.learning-grid .hero-copy>p{color:#52677e;max-width:360px;margin:0;font-size:16px;line-height:1.65}.learning-grid .lesson-progress{max-width:300px;margin:30px 0 26px}.learning-grid .lesson-progress>span{color:#52677e;margin-bottom:11px;font-size:15px}.learning-grid .lesson-progress>span>span{display:none}.learning-grid .lesson-progress .track{background:#d4e1eb;height:12px}.learning-grid .hero-copy .primary-button{white-space:normal;background:linear-gradient(110deg,#16adfa,#0798f6);border-radius:32px;gap:13px;min-height:62px;padding:16px 28px;font-size:19px;box-shadow:0 6px 16px #129ef51a}.learning-grid .hero-copy .primary-button>svg:first-child{flex-shrink:0;width:24px;height:24px}.learning-grid .hero-copy .primary-button>svg:last-child:not(:first-child),.learning-grid .hero-footnote,.learning-grid .hero-star{display:none}.learning-grid .hero-bird{z-index:1;pointer-events:none;width:290px;height:290px;animation:none;top:48px;right:-8px;transform:rotate(-8deg)}.learning-grid .hero-clouds{z-index:2;background:radial-gradient(100px 100px at 55% 80%,#fffdf2 99%,#0000),radial-gradient(70px 100px at 74% 105%,#fffefa 99%,#0000),radial-gradient(135px 130px at 106% 100%,#b9e8ff 99%,#0000),radial-gradient(90px 65px at 88% 110%,#d0efff 99%,#0000);height:180px;bottom:-35px}.learning-grid .real-study-totals{gap:12px;margin-top:22px;font-size:12px}.learning-grid>.weekly-card{background:#ffffffed;border:1px solid #e4eff8;border-radius:25px;flex-direction:column;padding:23px 23px 18px;box-shadow:0 3px 14px #a9cee612;display:flex!important}.learning-grid .weekly-title{color:#172f49;font-size:17px;font-weight:750;display:block}.learning-grid .mini-badge{display:none}.learning-grid .weekly-card h2{color:#102842;margin:4px 0 15px;font-size:36px;line-height:1.15}.learning-grid .weekly-card h2>span{font-size:23px}.learning-grid .bar-chart{gap:8px;min-height:112px;margin:0;padding:15px 0 20px;display:flex}.learning-grid .bar{border-radius:9px;width:17px;max-height:none}.learning-grid .bar-chart small{color:#6f8299;font-size:12px}.learning-grid .stat-row{background:#f5faff;border-radius:12px;gap:12px;padding:13px 10px;font-size:13px}.learning-grid .stat-row>svg{flex-shrink:0;width:27px;height:27px}.learning-grid .streak>span:last-child:not(:nth-child(2)){display:none}.learning-grid .streak>span:nth-child(2){color:#344d67;margin-left:0;font-size:13px;display:block}.learning-grid .weekly-goal{gap:12px;padding:18px 10px}.learning-grid .weekly-goal>svg{color:#17bda9;width:28px;height:28px}.learning-grid .weekly-goal>div>span{margin-bottom:9px;font-size:13px}.learning-grid .weekly-goal small{font-size:12px}.learning-grid .weekly-goal .track{height:9px}.learning-grid .real-weekly>.text-listen{align-self:flex-start;margin-top:14px}@media (width>=1500px){.learning-grid>.hero-card{min-height:430px}.learning-grid .hero-copy{padding:36px}.learning-grid .hero-bird{top:65px;right:12px;scale:1.18}}@media (width<=1100px){.workspace .learning-grid{grid-template-columns:minmax(0,1.75fr) minmax(235px,1fr);gap:18px}.learning-grid .hero-copy{max-width:68%;padding:28px 24px}.learning-grid .hero-copy>p{font-size:14px}.learning-grid .hero-bird{top:65px;right:-65px;scale:.85}.learning-grid .hero-copy .primary-button{min-height:55px;padding:14px 20px;font-size:16px}.learning-grid>.weekly-card{padding:22px 18px}}@media (width<=800px){.workspace .learning-grid{grid-template-columns:1fr}.learning-grid>.hero-card{min-height:350px}.learning-grid .hero-copy{max-width:65%}.learning-grid .hero-bird{top:110px;right:-55px;scale:.7}.learning-grid>.weekly-card{min-height:0}.learning-grid .bar-chart{gap:16px}}@media (width<=480px){.learning-grid>.hero-card{border-radius:23px;min-height:370px}.learning-grid .hero-copy{max-width:76%;padding:25px 21px}.learning-grid .hero-copy h2{font-size:30px}.learning-grid .hero-copy>p,.learning-grid .hero-kicker{font-size:14px}.learning-grid .hero-bird{opacity:.9;top:125px;right:-95px;scale:.62}.learning-grid .lesson-progress{max-width:190px;margin:25px 0}.learning-grid .hero-clouds{opacity:.65}}.learning-grid .hero-copy>p{font-size:16px;line-height:1.6}.workspace-header{margin-bottom:32px}@media (width<=650px){.workspace-header{margin-bottom:24px}}.learning-grid>.hero-card{background:#e8f7ff url(/illustrations/learning-hero-v2.png) 50%/cover no-repeat}.learning-grid .hero-bird,.learning-grid .hero-clouds{display:none}.learning-grid .hero-copy{max-width:55%}@media (width<=1100px){.learning-grid>.hero-card{background-image:linear-gradient(90deg,#e8f7fff2,#e8f7ffb3 48%,#0000 80%),url(/illustrations/learning-hero-v2.png)}.learning-grid .hero-copy{max-width:72%}}@media (width<=480px){.learning-grid .hero-copy{max-width:85%}}