@font-face{font-family:Matter;src:url(/fonts/matter_regular.ttf)format("truetype");font-weight:400;font-display:swap}@font-face{font-family:Matter;src:url(/fonts/matter_semibold.ttf)format("truetype");font-weight:600;font-display:swap}@font-face{font-family:Matter;src:url(/fonts/matter_bold.ttf)format("truetype");font-weight:700;font-display:swap}:root{color:#fff;font-synthesis:none;--accent:#f9f118;--surface:#1a1a1a;--surface-secondary:#2c2c2e;--muted:#b0b0b0;--line:#ffffff1f;--purple:#ab77ff;--orange:#ffb164;--green:#81ff92;--sky:#93ffff;--background:#000;--foreground:#fff;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;background:#000;font-family:Matter,system-ui,sans-serif}:root[data-theme=light]{--background:#f7f7f7;--foreground:#171717;--surface:#fff;--surface-secondary:#eeeeef;--muted:#616161;--line:#00000024;--accent:#746e00;--purple:#773dc0;--orange:#99541a;--green:#207d37;--sky:#217482;color:var(--foreground);background:var(--background)}@media (prefers-color-scheme:light){:root[data-theme=system]{--background:#f7f7f7;--foreground:#171717;--surface:#fff;--surface-secondary:#eeeeef;--muted:#616161;--line:#00000024;--accent:#746e00;--purple:#773dc0;--orange:#99541a;--green:#207d37;--sky:#217482;color:var(--foreground);background:var(--background)}}.choice-row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.choice-row>button{border:1px solid var(--line);background:var(--surface);color:inherit;border-radius:16px;min-height:44px;padding:10px 14px}.choice-row>.selected{border-color:var(--accent);color:var(--accent)}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.topic-grid .card{min-width:0;margin:0}.calendar-grid{text-align:center;grid-template-columns:repeat(7,minmax(0,1fr));gap:5px;display:grid}.calendar-day{background:var(--surface);border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:4px;min-height:56px;display:flex}.calendar-day.practiced{color:var(--accent);background:#f9f11833}.calendar-day.today{outline:1px solid var(--accent)}.streak-number{color:var(--accent);font-size:72px;line-height:1.1}.report-total{text-align:center;padding:10px 0 20px}.report-total strong{color:var(--accent);font-size:112px;font-weight:600;line-height:1.1}.report-total span{font-size:20px}.stat-grid.report-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}fieldset{border:1px solid var(--line);border-radius:20px;min-width:0;padding:18px}legend{padding:0 6px;font-size:18px}textarea{background:var(--surface);border:1px solid var(--line);width:100%;color:inherit;resize:vertical;border-radius:12px;padding:12px}.learning-teddy{align-self:center;width:120px;height:120px}.onboarding-hero{object-fit:contain;width:100%;max-height:330px}.onboarding-video{border-radius:24px;width:100%;max-height:330px}.onboarding h1,.onboarding p{white-space:pre-line}.live-caption{text-align:center;color:#fff;background:#000b;border-radius:16px;padding:16px;font-size:20px}.live-caption.subtitle-small{font-size:16px}.live-caption.subtitle-large{font-size:26px}.live-stage.chat-mode{height:110px}:root[data-theme=light] :is(select,input:not([type=checkbox]):not([type=radio]),.sheet,.tab-bar,.answer-options button,.token-bank button,.answer-line){background:var(--surface);color:var(--foreground);border-color:var(--line)}@media (prefers-color-scheme:light){:root[data-theme=system] :is(select,input:not([type=checkbox]):not([type=radio]),.sheet,.tab-bar,.answer-options button,.token-bank button,.answer-line){background:var(--surface);color:var(--foreground);border-color:var(--line)}}@media print{.tab-bar,button,.skip-link{display:none!important}.page-content{color:#000;background:#fff;max-width:none}.card{break-inside:avoid;border:1px solid #ccc}}*{box-sizing:border-box}body{min-width:320px;margin:0}button,input,select,textarea{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default;opacity:.48}a{color:inherit;text-decoration:none}a:hover{text-decoration:none}h1,h2,h3,p{margin:0}h1{letter-spacing:-.6px;font-size:30px;font-weight:600;line-height:1.15}h2{font-size:22px;font-weight:600;line-height:1.25}h3{font-size:20px;font-weight:600}p{line-height:1.55}ul,ol{padding-left:22px;line-height:1.7}img{object-fit:cover;max-width:100%}svg{flex-shrink:0}strong{font-weight:600}small,.small{font-size:13px;line-height:1.5}.muted{color:var(--muted)}.accent{color:var(--accent)}.danger{color:#ff8c8c}.eyebrow{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-size:12px}.row{align-items:center;gap:12px;display:flex}.between{justify-content:space-between}.stack{gap:14px;display:grid}.full{width:100%}.app-shell{max-width:840px;min-height:100dvh;margin:auto}.page-content,.practice-home{gap:26px;padding:28px 20px;display:grid}.page-content>section{gap:18px;display:grid}.section-heading{justify-content:space-between;align-items:center;gap:16px;display:flex}.section-heading a{color:var(--muted);align-items:center;font-size:14px;display:flex}.button,.primary-action,.secondary-action{text-align:center;border:0;border-radius:28px;justify-content:center;align-items:center;gap:10px;min-height:52px;padding:14px 22px;font-size:16px;font-weight:600;text-decoration:none;display:inline-flex}.primary,.primary-action{color:#000;background:#f9f118}.outline,.secondary-action{color:var(--foreground);border:1px solid var(--line);background:0 0}.white{color:#111;background:#fff}.black{color:#fff;background:#000}.button.full+.button.full{margin-top:12px}.text-button{color:inherit;background:0 0;border:0;justify-content:center;align-items:center;gap:8px;padding:10px 0;font-size:14px;display:inline-flex}.icon-button,.round-button{border:1px solid var(--line);background:var(--surface);width:46px;height:46px;color:inherit;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.round-button{width:52px;height:52px}.button:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.card{border:1px solid var(--line);background:var(--surface);border-radius:20px;padding:22px}.card>p{color:var(--muted)}.notice{color:var(--orange);background:#ffb1641a;border:1px solid #ffb16455;border-radius:14px;padding:16px;font-size:14px;line-height:1.5}.notice button{margin-left:14px}.notice.success{color:var(--green);background:#81ff9218;border-color:#81ff9255}.empty{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:22px;min-height:70dvh;padding:36px 24px;display:flex}.empty p{max-width:400px;color:var(--muted)}.skeleton{background:linear-gradient(100deg,#161616,#292929,#161616) 0 0/200% 100%;border-radius:20px;height:240px;animation:1.8s linear infinite shimmer}.skip-link{background:var(--accent);color:#000;z-index:200;border-radius:10px;padding:12px 20px;position:fixed;top:10px;left:20px;transform:translateY(-150%)}.skip-link:focus{transform:none}.offline-banner{z-index:70;color:#221900;background:#ffe1ac;padding:12px 20px;font-size:14px;line-height:1.4;position:sticky;top:0}.tab-bar{z-index:50;bottom:max(18px, env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#191919f5;border:1px solid #ffffff24;border-radius:38px;justify-content:space-around;align-items:center;gap:2px;width:min(100% - 32px,430px);padding:10px 12px;display:flex;position:fixed;left:50%;transform:translate(-50%);box-shadow:0 10px 40px #0006}.tab-bar a{color:#888;flex-direction:column;justify-content:center;align-items:center;gap:5px;min-width:52px;min-height:48px;font-size:11px;display:flex}.tab-bar a.active{color:var(--accent)}.app-shell:has(.audio-session) .tab-bar{display:none}.home-hero{background:var(--accent);color:#000;padding:calc(42px + env(safe-area-inset-top)) 22px 28px;border-radius:0 0 26px 26px;gap:24px;display:grid}.home-hero h1{letter-spacing:0;font-size:20px;font-weight:600}.home-hero h1>span{opacity:.5}.goal-row{gap:16px}.goal-row h2{letter-spacing:-.6px;font-size:30px}.home-hero p{margin-top:5px;font-size:14px}.avatar{border-radius:50%;width:64px;height:64px}.goal-icon{background:#0001;place-items:center;display:grid}.welcome-card p{margin:10px 0 18px}.welcome-card .text-button{width:100%;margin-top:10px}.language-picker{flex-wrap:wrap;gap:16px;display:flex}.language-picker>label{flex:1;min-width:150px}.language-picker:not(:has(label+label))>label{align-items:center;gap:14px;display:flex}.language-picker:not(:has(label+label)) select{flex:1}.language-picker select{font-weight:600}label{color:var(--foreground);gap:9px;font-size:14px;display:grid}input,select,textarea{border:1px solid var(--line);color:#fff;background:#252525;border-radius:12px;width:100%;min-height:48px;padding:12px 14px;font-size:16px}input::placeholder{color:#888}input[type=checkbox]{accent-color:var(--accent);width:22px;min-height:22px}select{max-width:100%}.toggle-label{justify-content:space-between;align-items:center;display:flex}.search-field{background:var(--surface);border:1px solid var(--line);border-radius:14px;align-items:center;padding:0 14px;display:flex}.search-field input{background:0 0;border:0;padding-left:0}.tag{letter-spacing:.03em;color:var(--accent);background:#f9f11820;border-radius:6px;align-items:center;padding:5px 8px;font-size:11px;font-weight:600;display:inline-flex}.chapter-feature{border:1px solid var(--line);background:var(--surface);border-radius:18px;align-items:center;gap:16px;padding:14px;display:flex}.chapter-feature>img{border-radius:12px;width:96px;height:112px}.chapter-feature>div{flex:1}.chapter-feature h2,.chapter-feature h3{margin:9px 0;font-size:18px;line-height:1.25}.chapter-feature p{color:var(--muted);font-size:13px}.chapter-image{border-radius:18px;width:100%;height:200px}.streak-card{align-items:center;gap:16px!important;display:flex!important}.streak-card>svg{color:var(--orange)}.streak-card>div{flex:1}.streak-card p{color:var(--muted);margin-top:5px;font-size:13px}.yellow-card{background:var(--accent);color:#000}.yellow-card>p{color:#000b}.tutor-rail{gap:16px;padding-bottom:10px;display:flex;overflow:auto}.tutor-preview{gap:7px;width:126px;min-width:126px;display:grid}.tutor-preview img{border-radius:16px;width:126px;height:160px}.tutor-preview strong{font-size:16px}.tutor-preview span{color:var(--muted);font-size:12px}.tutor-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.tutor-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;overflow:hidden}.tutor-card>img{aspect-ratio:3/4;object-position:top;width:100%;display:block}.tutor-card>div{padding:16px}.tutor-card h2{font-size:23px}.tutor-card p{color:var(--muted);margin:7px 0 12px;font-size:13px}.tutor-card .tag{font-size:10px;line-height:1.2}.tutor-call{color:var(--accent);align-items:center;gap:8px;margin-top:18px;font-size:12px;display:flex}.list-row{border:1px solid var(--line);background:var(--surface);border-radius:16px;align-items:center;gap:14px;padding:18px 16px;display:flex}.list-row>div{flex:1}.list-row small{color:var(--muted);margin-top:6px;display:block}.topic-number{border:1px solid #ffffff30;border-radius:50%;place-items:center;width:32px;height:32px;font-size:14px;display:grid}.sheet{color:#fff;background:#151515;border:1px solid #ffffff2a;border-radius:30px;width:calc(100% - 24px);max-width:540px;max-height:92dvh;padding:24px;overflow:auto;box-shadow:0 10px 70px #0009}.sheet::backdrop{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#000b}.sheet-header{justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px;display:flex}.sheet-header h2{font-size:24px}.sheet>p{margin:16px 0}.divider{text-align:center;color:var(--muted);margin:10px 0;font-size:13px;display:block}.paywall-brand{text-align:center;padding:20px 0}.paywall-brand svg{color:var(--accent);margin-bottom:16px}.paywall-brand h3{font-size:30px;line-height:1.15}.benefits{color:var(--foreground);gap:6px;display:grid}.plan-grid{grid-template-columns:1fr 1fr;gap:12px;margin:24px 0;display:grid}.plan-grid>button{text-align:left;border:1px solid var(--line);background:var(--surface);color:var(--foreground);border-radius:18px;gap:10px;padding:20px 14px;display:grid}.plan-grid>button b{font-size:25px}.plan-grid>button small{color:var(--muted)}.plan-grid>button.selected,.answer-options>button.selected{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent);background:#f9f1180d}.plan-grid>button.selected{color:var(--foreground)}.sheet .small svg{vertical-align:middle;margin-right:5px}.sheet .small a{text-decoration:underline}.stat-grid{grid-template-columns:repeat(auto-fit,minmax(100px,1fr));gap:12px!important;display:grid!important}.stat-grid .card{padding:18px 14px}.stat-grid b{font-size:28px}.stat-grid p{margin-top:6px;font-size:12px;line-height:1.4}.level-card h2{margin:12px 0;font-size:42px}.level-card p{font-size:13px}progress{accent-color:var(--accent);border:0;border-radius:20px;width:100%;height:10px;overflow:hidden}progress::-webkit-progress-bar{background:var(--line);border-radius:20px}progress::-webkit-progress-value{background:var(--accent);border-radius:20px}.skill{align-items:center;gap:14px;font-size:13px;display:flex}.skill>span{text-transform:capitalize;min-width:105px}.skill progress{flex:1}.skill strong{font-size:12px}.skill-grammar progress{accent-color:var(--purple)}.transcript-turn{border-left:2px solid var(--purple);padding:10px 16px}.transcript-turn strong{color:var(--purple);font-size:12px}.transcript-turn p{margin-top:6px}.profile-card{overflow-wrap:anywhere;align-items:center;gap:16px!important;display:flex!important}.profile-card p{color:var(--muted);margin-top:6px;font-size:14px}.profile-initial{background:var(--accent);color:#000;border-radius:50%;place-items:center;width:54px;height:54px;font-size:25px;font-weight:600;display:grid}.settings-page{gap:22px}.danger-button{color:#fff;background:#d53b3b}.settings-page section h2{font-size:20px}.live-stage{background:var(--surface);border-radius:24px;height:min(64dvh,540px);position:relative;overflow:hidden}.live-stage>img{object-position:top;width:100%;height:100%}.live-media{position:absolute;inset:0}.live-media video{object-fit:cover;width:100%;height:100%}.live-media audio{display:none}.live-status{background:#0009;border-radius:20px;align-items:center;gap:8px;padding:8px 12px;font-size:13px;display:flex;position:absolute;top:16px;left:16px}.live-controls{justify-content:center;align-items:center;gap:22px;padding:10px;display:flex}.end-call{color:#fff;background:#df4646;border:0;width:64px;height:64px}.live-page h1{font-size:26px}.lesson-player h1{font-size:28px}.lesson-player .row progress{flex:1}.lesson-player .row>span{color:var(--muted);font-size:12px}.activity-image{object-fit:contain;background:#151515;border-radius:18px;width:100%;height:190px}.lesson-prompt{margin-bottom:20px;font-size:22px;line-height:1.4}.concept-card{background:var(--surface);border-radius:22px;gap:18px;padding:26px;display:grid}.concept-card h2{color:var(--accent);font-size:28px}.answer-options{gap:12px;display:grid}.answer-options>button{border:1px solid var(--line);background:var(--surface);color:#fff;text-align:left;border-radius:14px;width:100%;min-height:56px;padding:16px;line-height:1.4}.answer-options img{object-fit:contain;width:100%;height:140px;margin-bottom:10px;display:block}.answer-line{background:var(--surface);border-bottom:2px solid #ffffff35;border-radius:14px;min-height:66px;margin:20px 0;padding:20px 16px;font-size:20px;line-height:1.5}.token-bank{flex-wrap:wrap;gap:10px;display:flex}.token-bank button{color:#fff;background:#252525;border:1px solid #ffffff35;border-radius:12px;min-height:46px;padding:12px 17px}.match-row{justify-content:space-between;align-items:center;gap:14px;display:flex}.match-row>img{object-fit:contain;width:100px;height:100px}.match-row>select{max-width:60%}.lesson-body{min-height:200px}.onboarding{align-content:start;gap:32px;min-height:85dvh}.onboarding-mark{background:var(--accent);color:#000;border-radius:36px;justify-self:center;place-items:center;width:120px;height:120px;margin-top:25px;display:grid}.onboarding h1{text-align:center;font-size:34px}.onboarding>p{color:var(--muted);text-align:center}.audio-options{flex-wrap:wrap;gap:16px;display:flex}.audio-options label{flex:180px}.audio-daily{background:var(--accent);color:#000;text-align:left;border:0;border-radius:20px;align-items:center;gap:18px;width:100%;padding:24px;display:flex}.audio-daily strong{font-size:24px;display:block}.audio-daily small{margin-top:7px;display:block}.audio-catalog-heading{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;display:flex}.audio-catalog-heading h2{font-size:22px}.audio-topics{grid-template-columns:1fr 1fr;gap:14px;display:grid}.audio-topic{border:1px solid var(--line);background:var(--surface);color:#fff;text-align:left;border-radius:20px;gap:10px;padding:20px;display:grid}.audio-topic>span{color:var(--purple);font-size:12px}.audio-topic strong{font-size:19px;line-height:1.25}.audio-topic p{color:var(--muted);font-size:13px}.audio-topic small{color:var(--accent);align-items:center;gap:5px;display:flex}.practice-intro{gap:12px;display:grid}.practice-intro p{color:var(--muted)}.practice-eyebrow{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-size:12px}.audio-session,.audio-result{text-align:center;gap:18px;display:grid}.audio-session .practice-actions{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.audio-session>p{color:var(--muted)}.audio-orb{color:#151020;background:radial-gradient(circle at 35% 25%,#e6d5ff,#685584);border-radius:50%;place-items:center;width:180px;height:180px;margin:25px auto;display:grid;box-shadow:0 0 80px #ab77ff30}.native-audio-bot{pointer-events:none;width:100%;height:290px}.audio-phase{min-height:25px}.audio-transcript{text-align:left}.audio-transcript ol{padding:0;list-style:none}.audio-transcript li{background:var(--surface);border-radius:12px;margin:12px 0;padding:14px}.audio-transcript strong{color:var(--purple);font-size:12px}.audio-transcript p{margin-top:6px}.audio-result{border:1px solid var(--line);background:var(--surface);text-align:left;border-radius:20px;padding:24px}.audio-result>svg{color:var(--green)}.audio-spinner{animation:1s linear infinite spin}@media (width>=700px) and (height>=600px){:root[dir=rtl] .app-shell{padding-left:0;padding-right:100px}:root[dir=rtl] .app-shell.fullscreen{padding-right:0}:root[dir=rtl] .tab-bar{border-radius:24px 0 0 24px;left:auto;right:0}.app-shell{max-width:940px;padding-left:100px}.tab-bar{border-radius:0 24px 24px 0;flex-direction:column;justify-content:flex-start;gap:18px;width:100px;padding:32px 10px;top:0;bottom:0;left:0;transform:none}.rail-brand{color:var(--accent);margin-bottom:25px;font-size:22px;font-weight:700;display:block}.tab-bar a{border-radius:18px;width:72px;min-height:70px}.tab-bar a.active{background:var(--accent);color:#000}.app-shell>main{padding-bottom:35px}.app-shell.fullscreen{max-width:840px;padding-left:0}.page-content,.practice-home{padding:38px}.home-hero{padding-left:38px;padding-right:38px}.audio-topics{grid-template-columns:repeat(3,1fr)}}@media (width<=380px){.tutor-grid{gap:10px}.tutor-card>div{padding:12px}.tutor-card h2{font-size:20px}.tab-bar{width:calc(100% - 20px);padding:10px 5px}.tab-bar a{min-width:45px}.audio-topics{grid-template-columns:1fr}.goal-row h2{font-size:28px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}@keyframes shimmer{to{background-position:-200% 0}}@keyframes spin{to{transform:rotate(360deg)}}.push-notice{z-index:150;left:16px;right:16px;top:calc(16px + env(safe-area-inset-top));background:var(--surface);max-width:520px;color:var(--foreground);border:1px solid var(--line);border-radius:20px;align-items:center;gap:12px;margin:auto;padding:16px;display:flex;position:fixed;box-shadow:0 8px 40px #0005}.push-notice>button{color:inherit;text-align:start;background:0 0;border:0}.push-notice>button:first-of-type{flex:1}.push-notice strong,.push-notice span{display:block}.secure-checkout{z-index:1000;color:#101828;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;background:#fff;border:0;border-radius:0;flex-direction:column;width:100vw;max-width:none;height:100dvh;max-height:none;margin:0;padding:0;position:fixed;inset:0}.secure-checkout[open]{display:flex}.secure-checkout>button{color:#101828;background:#fff;border:0;flex:none;align-self:start;padding:16px 20px;font-weight:600}.secure-checkout-target{contain:layout paint;flex:1;min-height:0;position:relative}.push-notice span{color:var(--muted);margin-top:4px;font-size:14px}@font-face{font-family:Matter;src:url(/fonts/matter_medium.ttf)format("truetype");font-weight:500;font-display:swap}.sr-only{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.app-shell{max-width:720px;padding-inline:0}.app-shell>main{padding-bottom:calc(126px + env(safe-area-inset-bottom,0px))}.app-shell.fullscreen>main{padding-bottom:24px}.app-shell.fullscreen>main:has(>.lesson-player){padding-bottom:0}.page-content,.practice-home{gap:24px;min-width:0;padding:36px 20px 24px}.page-content h1,.practice-home h1{letter-spacing:0;font-size:30px;font-weight:600;line-height:1.15}.page-content h2{letter-spacing:0;font-size:20px}.page-content h3{letter-spacing:0;font-size:19px}.tab-bar{inset:auto auto max(18px, env(safe-area-inset-bottom,0px)) 50%;background:color-mix(in srgb, var(--surface) 96%, transparent);border-color:var(--line);-webkit-backdrop-filter:none;backdrop-filter:none;border-radius:200px;flex-direction:row;justify-content:space-between;gap:0;width:min(100% - 40px,680px);padding:4px;transform:translate(-50%)}.tab-bar a{width:auto;min-width:0;min-height:58px;color:var(--foreground);opacity:.95;border-radius:200px;flex:1;gap:1px;font-size:11px}.tab-bar a.active{background:color-mix(in srgb, var(--foreground) 14%, transparent);color:var(--accent);opacity:1}.tab-bar a.active svg{filter:none}.rail-brand{display:none}.home-hero{padding:calc(44px + env(safe-area-inset-top,0px)) 20px 20px;background:#f9f118;border-radius:0;gap:20px}.home-hero h1{font-size:20px;line-height:1.2}.home-hero p{margin-top:4px;line-height:1.25}.goal-row h2{letter-spacing:0;font-size:30px;line-height:1.15}.goal-icon{background:#0000000c;font-size:32px}.home-language{align-items:center;gap:4px;font-size:18px;display:flex}.home-language span{border-radius:50%;place-items:center;width:28px;height:28px;font-size:25px;display:grid;overflow:hidden}.native-home{padding-top:24px}.native-next-lesson{background:color-mix(in srgb, var(--foreground) 18%, var(--background));border:0;align-items:center;gap:14px;padding:16px;display:flex}.native-play{color:#000;background:#f9f118;border-radius:50%;flex-shrink:0;place-items:center;width:48px;height:48px;display:grid}.native-next-lesson div{gap:3px;min-width:0;display:grid}.native-next-lesson small{color:var(--muted);font-size:14px}.native-next-lesson strong{font-size:18px}.native-guided-section{gap:18px!important}.native-chapter-summary{gap:12px;min-width:0;display:grid}.native-chapter-summary h2{font-size:22px;font-weight:600;line-height:1.2}.native-chapter-summary p{color:var(--muted);font-size:14px;line-height:1.2}.native-chapter-art{position:relative}.native-chapter-art img{object-fit:cover;border-radius:12px;width:100%;height:168px;display:block}.native-pro{bottom:10px;color:#000;background:#f9f118;border-radius:40px;padding:6px 10px;font-size:12px;font-weight:600;position:absolute;inset-inline-start:10px}.native-topic-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:28px 12px;display:grid}.native-topic{text-align:center;color:var(--foreground);background:0 0;border:0;flex-direction:column;align-items:center;gap:10px;min-width:0;padding:0;font-size:14px;line-height:20px;display:flex}.native-topic>span:last-child{overflow-wrap:anywhere;min-height:40px}.native-topic-ring{border:8px solid #0000;border-radius:50%;place-items:center;width:86px;height:86px;display:grid}.native-topic-ring>span{border:2px solid color-mix(in srgb, var(--foreground) 86%, transparent);border-radius:50%;place-items:center;width:72px;height:72px;display:grid}.native-topic-ring.current{color:var(--accent);border-color:#f9f11859}.native-topic-ring.current>span{border-color:var(--accent)}.native-topic:has(.native-topic-ring.current){color:var(--accent)}.native-chapters-link{border-radius:100px;justify-content:space-between;min-height:46px}.native-streak{border-radius:12px;gap:8px;padding:16px;display:grid}.native-streak p{color:var(--muted);font-size:14px;line-height:1.3}.native-streak-week{grid-template-columns:repeat(7,minmax(0,1fr));gap:8px;display:grid}.native-streak-week>div{background:color-mix(in srgb, var(--foreground) 12%, transparent);border-radius:8px;place-items:center;gap:3px;min-height:44px;font-size:14px;display:grid}.native-streak-week>div.today{background:var(--foreground);color:var(--background)}.native-streak>.row>div{flex:1}.native-tutors{gap:16px;padding-top:40px}.native-tutors h1{font-size:44px;font-weight:700}.native-tutors>.muted{margin-top:-12px}.native-language-picker{flex-shrink:0;align-items:center;gap:8px;min-width:0;display:flex}.native-language-picker label{border:1px solid var(--line);background:var(--surface);border-radius:14px;place-items:center;min-width:56px;min-height:44px;padding:8px;display:grid;position:relative}.native-language-picker label>span:not(.sr-only){align-items:center;gap:4px;font-size:24px;display:flex}.native-language-picker select{opacity:0;cursor:pointer;width:100%;height:100%;position:absolute;inset:0}.native-language-picker label:focus-within{outline:2px solid var(--accent);outline-offset:2px}.native-tutor-search{color:var(--muted);font-size:14px}.native-tutor-search summary{cursor:pointer;align-items:center;gap:7px;min-height:32px;display:flex}.native-tutor-search .search-field{margin-top:8px}.native-tutors .tutor-grid{grid-template-columns:1fr;gap:16px}.native-tutors .tutor-card{border-radius:20px;padding:12px}.native-tutors .tutor-card>img{aspect-ratio:auto;object-fit:cover;object-position:center;border-radius:24px;width:100%;height:253px}.native-tutors .tutor-card>div{gap:8px;padding:16px 4px 0;display:grid}.native-tutors .tutor-card h2{font-size:28px}.native-tutors .tutor-card p{align-items:center;gap:4px;margin:0;font-size:14px;display:flex}.native-tutors .tutor-card .tag{justify-self:start;font-size:12px}.native-tutors .tutor-card .tutor-description{color:var(--muted);line-height:1.3}.native-tutors .tutor-call{border:2px solid var(--foreground);min-height:46px;color:var(--foreground);border-radius:24px;justify-content:center;align-items:center;margin:8px -4px 0;font-size:16px;font-weight:600;display:flex}.settings-page>h1{margin-bottom:22px;font-size:32px;font-weight:700;line-height:32px}.app-shell :is(button,a,.native-audio-header,.native-path-node) svg{will-change:transform}.native-settings-tiles{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.native-settings-tile{flex-direction:column;justify-content:start;align-items:start;gap:12px;height:98px;min-height:98px;padding:19px;font-size:17px;font-weight:600;line-height:17px;display:flex}.native-settings-tile svg{width:24px;height:24px}.native-settings-tile svg,.native-settings-row>svg:first-child{color:var(--accent)}.native-settings-row{text-align:start;width:100%;min-height:72px;color:var(--foreground);gap:20px;padding:19px}.native-settings-row>div{flex:1;gap:3px;min-width:0;display:grid}.native-settings-row strong{font-size:16px;line-height:16px}.native-settings-row small{color:var(--muted);margin:0;font-size:13px;line-height:13px}.native-settings-row>svg:last-child{width:24px;height:24px;color:var(--muted)}.native-settings-row>svg:first-child{width:25px;height:25px}.native-settings-tile,.native-settings-row{background-image:linear-gradient(135deg, color-mix(in srgb, var(--foreground) 4%, transparent), transparent, color-mix(in srgb, var(--foreground) 4%, transparent))}.native-rating-row,.native-version-row{min-height:69px}.native-rating-row>div,.native-version-row>div{gap:0}.native-rating-row>svg:first-child,.native-version-row>svg:first-child{width:27px;height:27px;color:var(--accent)}.native-rating-row>span{color:var(--accent);font-size:15px}.settings-page:has(.native-settings-tiles){gap:16px}.native-settings-divider{border:0;border-top:1px solid var(--line);margin:10px 0}.native-appearance{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-bottom:18px;display:grid}.native-appearance>button{border-radius:18px;flex-direction:column;justify-content:center;align-items:center;gap:10px;min-height:98px;padding:8px;font-size:14px;font-weight:600;display:flex}.native-appearance>.selected{background:color-mix(in srgb, var(--accent) 14%, var(--background));border-width:1.5px}.native-progress .section-heading{gap:8px}.native-progress .section-heading h1{font-size:30px}.native-progress .native-language-picker{gap:4px}.native-progress .native-language-picker label{min-width:50px}.native-progress-hero{text-align:center;justify-items:center;display:grid;gap:8px!important}.native-progress-hero>small{color:var(--muted);margin-top:8px}.native-progress-hero>h2{font-size:28px}.native-progress-ring{aspect-ratio:1;border-radius:50%;place-items:center;width:min(276px,100%);display:grid;position:relative}.native-progress-ring>svg{width:100%;height:100%;position:absolute;inset:0}.native-progress-ring>div{background:var(--background);border-radius:50%;flex-direction:column;justify-content:center;align-items:center;gap:8px;display:flex;position:absolute;inset:30px}.native-progress-ring strong{font-size:60px;font-weight:500;line-height:66px}.native-progress-ring span{font-size:20px}.native-progress-ring small{color:var(--muted)}.native-skill-card{gap:0;padding:14px 20px;display:grid}.native-skill-row{align-items:center;gap:9px;min-height:74px;display:flex}.native-skill-row strong{flex:1;font-size:54px;font-weight:500;line-height:62px}.native-skill-row>span{text-align:end;max-width:132px;font-size:16px}.native-skill-row i{background:var(--orange);border-radius:50%;flex-shrink:0;width:13px;height:13px}.native-skill-row.skill-vocabulary i{background:var(--purple)}.native-skill-row.skill-grammar i{background:var(--green)}.native-skill-row.skill-listening i{background:var(--sky)}.native-detail-header{grid-template-columns:46px minmax(0,1fr) 46px;align-items:center;gap:8px;min-height:58px;display:grid}.native-detail-header h1{text-align:center;font-size:20px;line-height:1.2}.native-back{background:var(--surface);border:1px solid var(--line);border-radius:50%;place-items:center;width:46px;height:46px;display:grid}.page-content:has(>.native-detail-header){gap:28px;padding-top:18px}.native-profile-form>[role=tablist]{flex-wrap:nowrap;justify-content:space-between;align-items:stretch;gap:6px;display:flex}.native-profile-form>[role=tablist]>button{background:0 0;border:0;border-radius:0;min-width:0;min-height:44px;padding:6px 0 12px;font-size:12px;line-height:16px}.native-profile-form>[role=tablist]>.selected{border-bottom:2px solid var(--accent)}.native-profile-form>.button:last-child{bottom:calc(104px + env(safe-area-inset-bottom,0px));border:1px solid var(--foreground);background:var(--surface);color:var(--foreground);z-index:2;border-radius:100px;position:sticky}.native-profile-form fieldset .choice-row{gap:0;display:grid}.native-profile-form fieldset .choice-row>button{border:0;border-bottom:1px solid var(--line);width:100%;min-height:62px;color:var(--foreground);text-align:start;background:0 0;border-radius:0;align-items:center;gap:24px;padding:7px 15px;font-size:17px;display:flex}.native-profile-form fieldset .choice-row>button:last-child{border-bottom:0}.native-profile-form fieldset .choice-row>button:before{content:"";border:2px solid var(--muted);box-sizing:border-box;border-radius:2px;flex-shrink:0;width:18px;height:18px}.native-profile-form fieldset .choice-row>button[aria-checked=true]:before{content:"✓";background:var(--accent);border-color:var(--accent);color:var(--background);place-items:center;font-size:14px;line-height:16px;display:grid}.native-profile-form>label{border:1px solid var(--line);background:var(--surface);border-radius:12px;align-items:center;gap:12px;min-height:56px;padding:12px 16px;display:flex}.native-profile-form>label>select,.native-profile-form>label>input{text-align:end;background:0 0;border:0;flex:1;width:50%;min-width:0}.native-progress-empty{place-content:center;min-height:420px}.native-progress-empty svg{color:var(--muted);justify-self:center}.native-progress-empty h2{justify-self:center;max-width:260px;font-size:26px;line-height:1.1}.native-progress-empty p{justify-self:center;max-width:300px;line-height:1.2}.native-progress-stats{gap:8px;display:flex;overflow-x:auto}.native-stat-pill{background:var(--surface);border:1px solid var(--line);border-radius:8px;flex-shrink:0;align-items:center;gap:4px;padding:12px 20px;font-size:16px;line-height:20px;display:flex}.native-stat-pill span{color:var(--muted)}.native-progress-stats .card{border-radius:8px;flex-shrink:0;align-items:center;gap:4px;padding:12px 20px;display:flex}.native-progress-stats .card b,.native-progress-stats .card p{font-size:14px;line-height:1.2}.native-audio-header{justify-content:space-between;align-items:center;gap:8px;display:flex}.audio-practice{gap:22px;padding-top:32px}.native-audio-divider{background:var(--line);border:0;width:calc(100% + 40px);height:1px;margin:0 -20px}.native-audio-unit{gap:12px;min-width:0;display:grid}.native-unit-heading{align-items:center;gap:12px;display:flex}.native-unit-heading p{text-align:center;color:var(--muted);flex:4;font-size:13px;line-height:1.3}.native-unit-heading>span{background:var(--line);flex:1;height:1px}.native-audio-header h1{font-size:30px;font-weight:700}.native-audio-header p{color:var(--muted);font-size:14px}.native-audio-count{border:1px solid var(--line);background:var(--surface);border-radius:60px;flex-shrink:0;align-items:center;gap:8px;padding:8px;display:flex}.native-audio-count>span{font-size:28px;line-height:32px}.native-audio-count b{font-size:11px;font-weight:400}.audio-practice .audio-daily{color:#000;background:#f9f118;border:0;border-radius:20px;justify-content:center;min-height:58px;font-size:20px;box-shadow:0 5px #9a8000}.audio-practice .audio-daily small{display:none}.native-audio-path{width:calc(100% + 40px);min-width:0;margin-inline:-20px;position:relative}.native-audio-path>svg{fill:none;width:100%;height:100%;stroke:color-mix(in srgb, var(--foreground) 25%, transparent);stroke-width:3px;stroke-dasharray:14 7;stroke-linecap:round;position:absolute;inset:0;overflow:visible}:root[dir=rtl] .native-audio-path>svg{transform:scaleX(-1)}.native-path-node{text-align:center;width:128px;position:absolute;transform:translate(-50%)}:root[dir=rtl] .native-path-node{transform:translate(50%)}.native-path-node button{width:100%;color:var(--foreground);background:0 0;border:0;flex-direction:column;align-items:center;gap:0;min-height:128px;padding:0;display:flex;position:relative}.native-path-node button>span{border:1px solid var(--line);background:var(--surface);width:76px;height:76px;box-shadow:0 5px color-mix(in srgb, var(--foreground) 25%, transparent);border-radius:23px;place-items:center;margin-block:9px;display:grid}.native-path-node.current button>span,.native-path-node.completed button>span{color:#000;background:#f9f118;box-shadow:0 5px #9a8000}.native-path-node.current button>span{outline-offset:2px;outline:7px solid #f9f11847}.native-path-node strong{overflow-wrap:anywhere;max-width:128px;font-size:14px;font-weight:400;line-height:17px}@media (width>=700px) and (height>=600px){:root[dir=rtl] .app-shell{padding-left:0;padding-right:0}:root[dir=rtl] .tab-bar{inset:auto auto max(18px, env(safe-area-inset-bottom,0px)) 50%;border-radius:200px}.page-content,.practice-home{padding:36px 20px 24px}.home-hero{padding-inline:20px}.app-shell.fullscreen{max-width:840px;padding:0}}@media (width<=350px){.native-topic-grid{gap:20px 5px}.native-topic-ring{border-width:6px;width:76px;height:76px}.native-topic-ring>span{width:64px;height:64px}.native-audio-header h1{font-size:25px}.native-progress .section-heading{flex-wrap:wrap}.native-appearance{gap:8px}}.page-content.native-session-setup{background:var(--background);color:var(--foreground);gap:32px;min-height:100dvh;padding:18px 20px 200px}.native-session-pair{border:1px solid var(--line);background:var(--surface);border-radius:16px;justify-content:center;align-items:center;gap:4px;padding:20px;font-size:16px;font-weight:500;display:flex}.native-session-setup .native-session-hero{gap:16px;display:grid;container-type:inline-size}.native-session-hero>img{object-fit:cover;border-radius:24px;width:100%;height:clamp(271px,58cqw,340px)}.native-session-tutor-copy{gap:8px;min-width:0;display:grid}.native-session-tutor-title{gap:2px;display:grid}.native-session-setup .native-session-tutor-title>h2{letter-spacing:-1.28px;font-size:32px;font-weight:500;line-height:1.15}.native-session-tutor-title>.row{letter-spacing:-.28px;gap:4px;font-size:14px;font-weight:500}.native-session-summary{letter-spacing:-.28px;font-size:14px}.native-session-metadata{letter-spacing:-.24px;gap:4px;font-size:12px}.native-session-pills{flex-wrap:wrap;gap:8px;display:flex}.native-session-pills>span{background:var(--surface);letter-spacing:-.24px;border-radius:100px;padding:8px;font-size:12px;font-weight:500}.native-session-setup>section{gap:8px}.native-session-setup>section>h2{font-size:20px}.native-default-backdrop{background:var(--surface);border-radius:16px;height:150px;overflow:hidden}.native-default-backdrop>img{object-fit:cover;width:100%;height:100%}.native-backdrops{scrollbar-width:none;gap:8px;display:flex;overflow-x:auto}.native-backdrops::-webkit-scrollbar{display:none}.native-backdrops>button{border:1px solid var(--line);background:var(--surface-secondary);width:212px;min-width:212px;height:244px;min-height:244px;color:var(--foreground);text-align:start;border-radius:16px;grid-template-rows:144px 64px;gap:10px;padding:12px;display:grid}.native-backdrops>button.selected{color:#000;background:#f9f118}.native-backdrops img{object-fit:cover;border-radius:18px;width:100%;height:144px}.native-backdrops strong{letter-spacing:-.32px;text-overflow:ellipsis;white-space:nowrap;font-size:16px;font-weight:500;overflow:hidden}.native-backdrop-copy{grid-template-rows:22px 34px;gap:8px;min-width:0;display:grid}.native-backdrops small{letter-spacing:-.24px;-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:12px;line-height:1.3;display:-webkit-box;overflow:hidden}.native-session-details{padding:0;overflow:hidden}.native-session-details>button{border:0;border-bottom:1px solid var(--line);width:100%;color:inherit;text-align:start;background:0 0;align-items:start;gap:18px;padding:20px;display:flex}.native-session-details>button:last-child{border-bottom:0}.native-session-details>button>span:first-child{flex:1.6;gap:4px;min-width:0;display:grid}.native-session-details>button>span:last-child{text-align:end;flex:1;justify-content:end;align-items:center;gap:4px;font-size:14px;display:flex}.native-session-details strong{font-size:16px}.native-session-details small{color:var(--muted);font-size:14px;line-height:1.3}.native-session-durations{gap:8px;padding:16px;display:flex;overflow:auto}.native-session-durations>button{white-space:nowrap;background:var(--surface);border:1px solid var(--line);color:var(--foreground);border-radius:100px;min-height:44px;padding:10px 14px}.native-session-durations>.selected{color:#000;background:#f9f118;border-color:#f9f118}.native-session-start{bottom:calc(94px + env(safe-area-inset-bottom,0px));background:color-mix(in srgb, var(--surface) 92%, transparent);border:1px solid var(--line);width:min(100% - 40px,680px);min-height:48px;color:var(--foreground);letter-spacing:-.18px;z-index:45;border-radius:100px;font-size:18px;font-weight:500;position:fixed;inset-inline-start:50%;transform:translate(-50%)}.native-picker-page{background:var(--background);width:min(100%,720px);max-width:720px;height:100dvh;max-height:100dvh;color:var(--foreground);border:0;border-radius:0;flex-direction:column;gap:20px;margin:auto;padding:20px;display:flex;inset:0}.native-picker-page .sheet-header{flex-shrink:0;justify-content:center;min-height:58px;padding-inline:54px;position:relative}.native-picker-page .sheet-header h2{text-align:center;font-size:20px}.native-picker-page .sheet-header button{inset-inline-start:0;background:var(--surface);border:1px solid var(--line);border-radius:50%;width:46px;height:46px;position:absolute;top:6px}.native-session-picker-options{flex:1;align-content:start;gap:12px;min-height:0;display:grid;overflow-y:auto}.native-session-picker-options>button{background:var(--surface-secondary);color:var(--foreground);text-align:start;border:0;border-radius:16px;gap:8px;padding:20px;display:grid}.native-session-picker-options>button.selected{color:#000;background:#f9f118}.native-session-picker-options strong{font-size:20px;font-weight:400}.native-session-picker-options p{font-size:14px;line-height:1.3}.lesson-player{color:#fff;--foreground:white;--background:#000;--surface:#1a1a1a;--accent:#f9f118;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;background:#000;flex-direction:column;gap:0;height:100dvh;min-height:0;padding:0;display:flex}.native-lesson-toolbar{flex-shrink:0;gap:8px;min-height:76px;padding:0 12px}.lesson-player .native-lesson-toolbar>progress{flex:none;width:126px;height:6px;margin-inline:auto}.native-lesson-toolbar>.icon-button{background:0 0;border:0;flex-shrink:0;width:44px;height:48px}.native-lesson-hero{background:#050505;border-bottom:1px solid #ffffff1a;flex-shrink:0;align-items:center;gap:0;min-height:148px;padding-inline:20px 6px;display:flex}.native-lesson-hero>div:first-child{flex:1;gap:8px;min-width:0;padding-block:20px;display:grid}.native-lesson-hero h1{color:#f9f118;letter-spacing:0;font-size:16px;font-weight:600;line-height:20px}.native-lesson-hero p{font-size:18px;line-height:1.3}.native-lesson-hero p.small{font-size:12px;line-height:16px}.native-lesson-hero .learning-teddy{flex-shrink:0;align-self:auto;width:126px;height:148px}.lesson-player>.lesson-body{flex:1;align-content:start;gap:18px;min-height:0;padding:18px 20px 16px;display:grid;overflow-y:auto}.lesson-body .activity-image{border-radius:16px;height:194px;margin:0}.native-lesson-footer{padding:12px 20px calc(30px + env(safe-area-inset-bottom,0px));background:#000;flex-shrink:0;justify-items:center;gap:12px;display:grid}.native-lesson-footer>.button{border:2px solid #f9f118;border-radius:100px;width:100%;height:58px;font-size:16px;font-weight:600}.native-lesson-footer>.outline{color:#f9f118;background:0 0}.native-lesson-footer>.text-button{color:#f9f118;background:#f9f11814;border:1px solid #f9f11859;border-radius:8px;padding:8px 12px;font-size:14px}.native-lesson-footer>.notice{text-align:center;color:var(--green);background:0 0;border:0;padding:0;font-size:14px;line-height:1.2}.native-lesson-complete{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:100dvh;display:flex}.native-lesson-complete .learning-teddy{width:220px;height:220px}.native-lesson-complete>h1{font-size:30px}.native-lesson-complete>.button{border-radius:100px;width:100%;min-height:58px}.native-lesson-hero p{-webkit-line-clamp:6;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.native-lesson-hero p.small{-webkit-line-clamp:4}.lesson-player .concept-card{color:#000;text-align:start;background:#f9f118;border:0;border-radius:20px;gap:12px;padding:16px;display:grid}.native-phrase-row{align-items:center;gap:8px;display:flex}.native-phrase-row h2{color:#000;overflow-wrap:anywhere;flex:1;min-width:0;margin:0;font-size:30px;font-weight:600;line-height:1.2}.native-phrase-row>.icon-button{color:#000;background:0 0;border:0;width:44px;height:44px}.lesson-player .concept-card>p{font-size:16px;font-weight:600;line-height:1.3}.lesson-player .answer-options>.selected{color:#000;background:#f9f118;border-color:#f9f118}.lesson-player[data-answer-state=correct] .answer-options>.selected{color:#fff;background:#203e26}.lesson-player[data-answer-state=incorrect] .answer-options>.selected{color:#fff;background:#462525}.native-true-false{grid-template-columns:repeat(2,minmax(0,1fr))}.native-true-false>button{color:#f9f118;place-items:center;min-height:80px;display:grid}.native-lesson-hint{color:#fff;text-align:center;background:#1a1a1a;border:1px solid #ffffff1f;border-radius:100px;width:100%;padding:12px;font-size:14px;line-height:1.3}.native-lesson-footer>[role=status]:not(.success),.native-lesson-footer>[role=alert]{color:#ef4444}@media (height<=500px){.native-lesson-toolbar{min-height:56px}.native-lesson-hero{min-height:96px}.native-lesson-hero>div:first-child{padding-block:8px}.native-lesson-hero .learning-teddy{width:88px;height:96px}.native-lesson-footer{padding-bottom:max(12px, env(safe-area-inset-bottom,0px));gap:8px}}.page-content>*,.page-content .section-heading>h1{min-width:0}.page-content h1,.page-content h2,.page-content h3{overflow-wrap:anywhere;-webkit-hyphens:auto;hyphens:auto}.tab-bar a>span{overflow-wrap:anywhere;-webkit-hyphens:auto;hyphens:auto;text-align:center;max-width:100%;line-height:1.05}.native-profile-form>[role=tablist]>button{overflow-wrap:anywhere;-webkit-hyphens:auto;hyphens:auto}.practice-home>*,.native-audio-header>div{min-width:0}.native-audio-header h1{overflow-wrap:anywhere;-webkit-hyphens:auto;hyphens:auto}:is(:lang(ae),:lang(ar),:lang(arc),:lang(bcc),:lang(bqi),:lang(ckb),:lang(dv),:lang(fa),:lang(glk),:lang(he),:lang(ku),:lang(mzn),:lang(nqo),:lang(pnb),:lang(ps),:lang(sd),:lang(ug),:lang(ur),:lang(yi)) :is(.lucide-chevron-left,.lucide-chevron-right,.lucide-arrow-left,.lucide-arrow-right){transform:scaleX(-1)}