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92px - env(safe-area-inset-top) - env(safe-area-inset-bottom));overscroll-behavior:contain;scrollbar-width:thin;gap:4px;padding:6px;overflow-y:auto}.lx-navigation-rail button{grid-template-rows:20px auto;gap:2px;min-height:48px;padding:5px 4px}.lx-navigation-rail button.active:before{top:10px;bottom:10px}}
@media (min-width:720px) and (max-width:1099px){.lx-main-content,.lx-page-heading,.lx-setup-card,.lx-setup-block,.lx-source-selector,.lx-setup-footer,.lx-setup-actions,.lx-setup-submit{min-width:0}.lx-source-selector{grid-template-columns:repeat(2,minmax(0,1fr))}.lx-source-selector>button{grid-template-columns:auto minmax(0,1fr);min-width:0}.lx-source-selector>button>div{min-width:0}.lx-source-selector strong,.lx-source-selector small{overflow-wrap:anywhere}.lx-setup-footer{grid-template-columns:1fr}.lx-setup-submit{grid-template-columns:minmax(0,1fr) auto;display:grid}}
.lx-routed-app .lx-primary-navigation,.lx-routed-app .lx-brand,.lx-routed-app .lx-app>.lx-skip-link{display:none!important}.lx-routed-app .lx-header-tools{grid-column:3}.lx-route-brand{z-index:180;top:calc(18px + env(safe-area-inset-top));min-height:48px;color:var(--lx-text);touch-action:manipulation;align-items:center;gap:13px;text-decoration:none;display:flex;position:fixed;left:max(28px,50vw - 742px)}.lx-route-brand strong{letter-spacing:-.045em;font-size:25px}.lx-route-nav{z-index:170}.lx-route-nav a{color:#a8b1c4;touch-action:manipulation;text-decoration:none;transition:color .16s,background .16s,border-color .16s,transform .16s}.lx-route-nav a>span{align-items:center;gap:10px;display:flex}.lx-route-nav a:hover{color:#e8ebf5}.lx-route-nav a.active{color:#fff}.lx-route-nav--header{top:calc(17px + env(safe-area-inset-top));gap:12px;display:flex;position:fixed;left:50%;transform:translate(-50%)}.lx-route-nav--header a{background:0 0;border:1px solid #0000;border-radius:14px;align-items:center;min-height:48px;padding:0 18px;display:flex;position:relative}.lx-route-nav--header a:hover{background:#ffffff09;transform:translateY(-1px)}.lx-route-nav--header a.active{background:linear-gradient(#223052d1,#131c32d1);border-color:#6e69ff30;box-shadow:inset 0 0 0 1px #ffffff04,0 10px 25px #00000029}.lx-route-nav--header a.active:after{content:"";background:linear-gradient(90deg,#0000,#8b67ff,#33a8ff,#0000);border-radius:999px;height:2px;position:absolute;bottom:-1px;left:17px;right:17px}.lx-route-nav--header a.active svg{color:#8172ff}.lx-route-nav--rail,.lx-route-nav--mobile{display:none}@media (min-width:720px) and (max-width:1099px){.lx-route-brand{top:calc(14px + env(safe-area-inset-top))}.lx-route-nav--header,.lx-route-nav--mobile{display:none}.lx-route-nav--rail{top:calc(94px + env(safe-area-inset-top));width:var(--lx-navigation-rail-width);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#080e1bd6;border:1px solid #7e92b929;border-radius:20px;flex-direction:column;gap:7px;padding:8px;display:flex;position:fixed;left:max(20px,50vw - 742px);box-shadow:0 18px 44px #0000003d}.lx-route-nav--rail a{text-align:center;background:0 0;border:1px solid #0000;border-radius:15px;place-items:center;width:100%;min-width:0;min-height:68px;padding:9px 6px;font-size:12px;font-weight:720;line-height:1.2;display:grid;position:relative}.lx-route-nav--rail a>span{grid-template-rows:24px auto;place-items:center;gap:5px;min-width:0;display:grid}.lx-route-nav--rail a>span>span{overflow-wrap:anywhere;max-width:100%;display:block}.lx-route-nav--rail a:hover{background:#ffffff09;border-color:#8b5cf633}.lx-route-nav--rail a.active{background:linear-gradient(150deg,#704fe83b,#1b2845b8);border-color:#8b5cf647;box-shadow:inset 0 0 0 1px #ffffff05}.lx-route-nav--rail a.active:before{content:"";background:linear-gradient(#8b67ff,#33a8ff);border-radius:999px;width:3px;position:absolute;top:14px;bottom:14px;left:-9px}.lx-route-nav--rail a.active svg{color:#a989ff}.lx-routed-app .lx-app-shell{display:block}.lx-routed-app .lx-main-content{margin-left:calc(var(--lx-navigation-rail-width) + 20px)}}@media (max-width:719px){.lx-route-brand{top:calc(11px + env(safe-area-inset-top));left:max(14px, env(safe-area-inset-left))}.lx-route-brand strong{font-size:21px}.lx-route-nav--header,.lx-route-nav--rail{display:none}.lx-route-nav--mobile{right:max(10px, env(safe-area-inset-right));bottom:max(10px, env(safe-area-inset-bottom));left:max(10px, env(safe-area-inset-left));min-height:var(--lx-compact-navigation-height);-webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px);background:#080e1bf5;border:1px solid #7e92b933;border-radius:20px;grid-template-columns:repeat(4,minmax(48px,1fr));gap:4px;padding:7px;display:grid;position:fixed;box-shadow:0 20px 50px #0000006b}.lx-route-nav--mobile a{background:0 0;border-radius:13px;place-items:center;min-width:48px;min-height:52px;padding:4px 2px;font-size:12px;font-weight:720;line-height:1.15;display:grid}.lx-route-nav--mobile a>span{place-items:center;gap:3px;max-width:100%;display:grid}.lx-route-nav--mobile a>span>span{text-overflow:ellipsis;white-space:nowrap;max-width:100%;display:block;overflow:hidden}.lx-route-nav--mobile a.active{color:#c1adff;background:#684bdc30}.lx-route-nav--mobile svg{width:20px;height:20px}}@media (max-width:390px){.lx-route-nav--mobile{gap:2px;padding:6px 4px}.lx-route-nav--mobile a{font-size:11px}}@media (min-width:720px) and (max-width:1099px) and (max-height:600px){.lx-route-nav--rail{top:calc(84px + env(safe-area-inset-top));max-height:calc(100dvh - 92px - env(safe-area-inset-top) - env(safe-area-inset-bottom));overscroll-behavior:contain;scrollbar-width:thin;gap:4px;padding:6px;overflow-y:auto}.lx-route-nav--rail a{min-height:48px;padding:5px 4px}.lx-route-nav--rail a>span{grid-template-rows:20px auto;gap:2px}.lx-route-nav--rail a.active:before{top:10px;bottom:10px}}
.lx-route-boundary{z-index:400;min-height:100dvh;color:var(--lx-text);text-align:center;background:radial-gradient(circle at 50% 25%,#6d5dfc2e,#0000 34%),#050914f7;place-content:center;justify-items:center;gap:12px;padding:32px;display:grid;position:fixed;inset:0}.lx-route-boundary strong,.lx-route-boundary h1{letter-spacing:-.035em;margin:0;font-size:clamp(24px,4vw,36px)}.lx-route-boundary span,.lx-route-boundary small{max-width:560px;color:var(--lx-muted);line-height:1.55}.lx-route-boundary .lx-bootstrap-mark{width:58px;height:58px;font-size:17px}.lx-route-boundary .lx-button{margin-top:8px;text-decoration:none}
.lx-legal-page{width:min(860px,100% - 32px);padding:calc(48px + env(safe-area-inset-top)) 0 96px;color:var(--lx-text,#f8fafc);margin:0 auto}.lx-legal-page header,.lx-legal-page section{background:#0f172aa3;border:1px solid #94a3b829;border-radius:24px;box-shadow:0 20px 60px #0000002e}.lx-legal-page header{gap:14px;padding:clamp(24px,5vw,48px);display:grid}.lx-legal-page header>span{color:var(--lx-muted,#94a3b8);letter-spacing:.04em;text-transform:uppercase;font-size:.85rem;font-weight:700}.lx-legal-page h1{letter-spacing:-.055em;margin:0;font-size:clamp(2rem,7vw,4.4rem);line-height:1}.lx-legal-page header p{max-width:700px;color:var(--lx-muted,#cbd5e1);margin:0;font-size:1.05rem;line-height:1.7}.lx-legal-page section{margin-top:18px;padding:clamp(22px,4vw,34px)}.lx-legal-page h2{letter-spacing:-.025em;margin:0 0 14px;font-size:clamp(1.2rem,3vw,1.65rem)}.lx-legal-page p,.lx-legal-page li{color:#d7deea;line-height:1.72}.lx-legal-page ul{gap:8px;padding-left:1.35rem;display:grid}.lx-legal-page a{color:#c4b5fd}.lx-legal-back{border-radius:12px;align-items:center;width:fit-content;min-height:44px;padding:0 12px;text-decoration:none;display:inline-flex}.lx-legal-footer{width:min(1540px,100% - 40px);min-height:64px;padding:18px max(0px, env(safe-area-inset-right)) calc(18px + env(safe-area-inset-bottom)) max(0px, env(safe-area-inset-left));color:var(--lx-muted,#94a3b8);border-top:1px solid #94a3b824;justify-content:space-between;align-items:center;gap:20px;margin:0 auto;font-size:.86rem;display:flex}.lx-legal-footer nav{flex-wrap:wrap;gap:18px;display:flex}.lx-legal-footer a{min-height:44px;color:inherit;align-items:center;text-decoration:none;display:inline-flex}.lx-legal-footer a:hover{color:var(--lx-text,#f8fafc)}@media (max-width:719px){.lx-legal-page{padding-top:calc(24px + env(safe-area-inset-top))}.lx-legal-footer{width:calc(100% - 28px);padding-bottom:calc(96px + env(safe-area-inset-bottom));flex-direction:column;align-items:flex-start}}
.lx-account-security{width:min(1540px,100% - 40px);color:var(--lx-text,#f8fafc);background:#070d1aeb;border:1px solid #94a3b829;border-radius:28px;margin:-34px auto 42px;padding:24px clamp(20px,4vw,48px) 40px;box-shadow:0 30px 80px #0000003d}.lx-account-security-heading,.lx-account-card-heading{justify-content:space-between;align-items:flex-start;gap:20px;display:flex}.lx-account-security-heading>div{gap:8px;display:grid}.lx-account-security-heading>div>span{color:#a78bfa;letter-spacing:.08em;font-size:.78rem;font-weight:800}.lx-account-security h2,.lx-account-security h3,.lx-account-security p{margin:0}.lx-account-security h2{letter-spacing:-.04em;font-size:clamp(1.65rem,4vw,2.55rem)}.lx-account-security-heading p,.lx-account-card-heading p,.lx-session-row span,.lx-audit-list span,.lx-session-list>p,.lx-audit-list>p{color:var(--lx-muted,#94a3b8);line-height:1.55}.lx-account-notice{border-radius:14px;margin-top:18px;padding:13px 16px;font-weight:700}.lx-account-notice.success{color:#a7f3d0;background:#10b9811f;border:1px solid #34d3994d}.lx-account-notice.error{color:#fecaca;background:#ef44441f;border:1px solid #f871714d}.lx-account-security-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:22px;display:grid}.lx-account-card{background:#0f172aa3;border:1px solid #94a3b829;border-radius:22px;min-width:0;padding:clamp(20px,3vw,28px)}.lx-account-card-heading h3{margin-bottom:6px;font-size:1.18rem}.lx-account-card-heading>strong{color:#ddd6fe;background:#8b5cf624;border-radius:13px;place-items:center;min-width:44px;min-height:44px;display:grid}.lx-session-list,.lx-audit-list{gap:10px;margin-top:18px;display:grid}.lx-session-row,.lx-audit-list>div{background:#02061761;border:1px solid #94a3b81f;border-radius:15px;justify-content:space-between;align-items:center;gap:14px;padding:13px 14px;display:flex}.lx-session-row>div,.lx-audit-list>div{gap:4px;min-width:0;display:grid}.lx-session-row>span{border-radius:999px;flex:none;padding:5px 9px;font-size:.76rem;font-weight:800}.lx-session-row>span.current{color:#a7f3d0;background:#10b98124}.lx-session-row>span.other{color:#cbd5e1;background:#94a3b81f}.lx-account-form{gap:11px;margin-top:20px;display:grid}.lx-account-form label{gap:7px;display:grid}.lx-account-form label>span{color:#cbd5e1;font-size:.82rem;font-weight:750}.lx-account-form input{width:100%;min-height:46px;color:inherit;font:inherit;background:#020617b8;border:1px solid #94a3b83d;border-radius:13px;padding:0 13px}.lx-account-form input[aria-invalid=true]{border-color:#f87171b8}.lx-account-form small[role=alert]{color:#fca5a5}.lx-account-form .lx-button{justify-self:start;margin-top:4px}.lx-account-audit{margin-top:18px}@media (max-width:880px){.lx-account-security-grid{grid-template-columns:1fr}}@media (max-width:719px){.lx-account-security{border-radius:22px;width:calc(100% - 24px);margin-top:-18px;margin-bottom:20px;padding:18px 16px 28px}.lx-account-security-heading,.lx-account-card-heading,.lx-session-row,.lx-audit-list>div{flex-direction:column;align-items:stretch}.lx-session-row>span{width:fit-content}.lx-account-security-heading>.lx-button{width:100%}}
.lx-account-email{margin-top:-24px}.lx-account-email-card{margin-top:22px}.lx-account-email-card .lx-account-form{max-width:560px}.lx-account-email-card .lx-account-form>small:not([role=alert]){color:var(--lx-muted,#94a3b8);line-height:1.5}.lx-email-confirmation{z-index:5;width:min(760px,100% - 32px);margin:24px auto 0;position:relative}.lx-email-confirmation-card{background:linear-gradient(145deg,#4c1d953d,#0f172af0);border:1px solid #a78bfa47;border-radius:22px;padding:clamp(20px,4vw,34px);box-shadow:0 22px 60px #02061757}.lx-email-confirmation-card>span{color:#c4b5fd;letter-spacing:.11em;font-size:.76rem;font-weight:800}.lx-email-confirmation-card h1{margin:10px 0 8px;font-size:clamp(1.5rem,4vw,2.2rem)}.lx-email-confirmation-card p{max-width:62ch;color:var(--lx-muted,#94a3b8);margin:0 0 20px;line-height:1.6}.lx-email-confirmation-card .lx-account-notice{margin-bottom:16px}@media (max-width:719px){.lx-account-email{margin-top:0}.lx-email-confirmation{width:min(100% - 20px,760px);margin-top:12px}}
.lx-account-data{margin-top:-24px}.lx-account-schema{color:#ddd6fe;letter-spacing:.04em;background:#8b5cf61f;border:1px solid #a78bfa3d;border-radius:999px;flex:none;padding:6px 10px;font-size:.76rem;font-weight:800}.lx-account-export-card .lx-account-form,.lx-account-danger-card .lx-account-form{max-width:560px}.lx-account-export-card .lx-account-form>small:not([role=alert]){color:var(--lx-muted,#94a3b8);line-height:1.5}.lx-account-danger-card{background:linear-gradient(145deg,#450a0a3d,#0f172aad);border-color:#f871713d}.lx-account-confirmation{background:#7f1d1d1f;border:1px solid #f8717129;border-radius:13px;grid-template-columns:auto minmax(0,1fr);align-items:start;padding:12px;gap:10px!important}.lx-account-confirmation input{accent-color:#ef4444;width:22px;min-height:22px;margin:0}.lx-account-confirmation>span{text-transform:none;line-height:1.5}.lx-button.danger{color:#fff;background:linear-gradient(135deg,#dc2626,#b91c1c);border-color:#f8717161;box-shadow:0 12px 28px #b91c1c38}.lx-button.danger:hover:not(:disabled){background:linear-gradient(135deg,#ef4444,#dc2626)}@media (max-width:719px){.lx-account-data{margin-top:0}}
.lx-speech-player{flex:none;align-items:center;display:inline-flex;position:relative}.lx-speech-player>button{touch-action:manipulation}.lx-speech-player>button:disabled{cursor:not-allowed;opacity:.5}.lx-speech-player>button.speech-loading svg{animation:.9s ease-in-out infinite alternate lx-speech-pulse}.lx-speech-player>button.speech-error{color:#ff9caf!important;background:#81203429!important;border-color:#ff5b778c!important}.lx-speech-player>button.speech-unsupported{color:#7f8ca2!important;box-shadow:none!important;background:#ffffff05!important;border-style:dashed!important}.lx-speech-feedback{z-index:210;color:#ffc0ca;text-align:left;background:#48121ffa;border:1px solid #ff5b774d;border-radius:12px;width:max-content;max-width:min(300px,100vw - 32px);padding:10px 12px;font-size:12px;font-weight:650;line-height:1.45;position:absolute;top:calc(100% + 9px);right:0;box-shadow:0 16px 40px #00000061}.lx-speech-feedback.unsupported{color:#c4cede;background:#121c30fa;border-color:#91a8d347}.lx-detail-speech-row,.lx-test-prompt-row{justify-content:space-between;align-items:flex-start;gap:16px;min-width:0;display:flex}.lx-detail-speech-row h1,.lx-test-prompt-row h1{min-width:0}.lx-test-prompt-row{text-align:left;align-items:center;width:min(1050px,100%);margin:18px auto 0}.lx-test-prompt-row>div:first-child{flex:auto;min-width:0}.lx-test-prompt-row h1{letter-spacing:-.05em;margin:0;font-size:clamp(38px,5vw,67px);line-height:1.12}.lx-test-prompt-row p{color:#78869c;margin:12px 0 0;font-size:19px}.lx-detail-speech-row .lx-speech-player>button,.lx-test-prompt-row .lx-speech-player>button{border:1px solid var(--lx-border);color:#bdc8d9;background:#ffffff06;border-radius:14px;flex:none;place-items:center;width:48px;height:48px;display:grid}@keyframes lx-speech-pulse{0%{opacity:.55;transform:scale(.9)}to{opacity:1;transform:scale(1.06)}}@media (prefers-reduced-motion:reduce){.lx-speech-player>button.speech-loading svg{animation:none}}@media (max-width:719px){.lx-speech-feedback{top:auto;right:max(14px, env(safe-area-inset-right));bottom:calc(var(--lx-compact-navigation-height) + 24px + env(safe-area-inset-bottom));left:max(14px, env(safe-area-inset-left));width:auto;max-width:none;position:fixed}.lx-lesson-focus-mode .lx-speech-feedback{bottom:calc(18px + env(safe-area-inset-bottom))}.lx-detail-speech-row,.lx-test-prompt-row{gap:10px}}
.lx-sw-update{z-index:1000;right:max(18px, env(safe-area-inset-right));bottom:max(18px, env(safe-area-inset-bottom));width:min(520px,100vw - 36px);color:var(--text);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);pointer-events:none;background:#111724f7;border:1px solid #8b5cf673;border-radius:20px;gap:16px;padding:18px;display:grid;position:fixed;box-shadow:0 22px 64px #0000007a}.lx-sw-update>div:first-child{gap:6px;display:grid}.lx-sw-update strong{font-size:16px}.lx-sw-update span{color:#cbd5e1;font-size:14px;line-height:1.5}.lx-sw-update__actions{pointer-events:auto;flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.lx-sw-update button{color:#fff;pointer-events:auto;background:linear-gradient(135deg,#7c3aed,#0891b2);border:0;border-radius:12px;min-height:42px;padding:10px 15px;font-weight:800}.lx-sw-update button.secondary{background:#ffffff12;border:1px solid #ffffff24}.lx-sw-update button.quiet,.lx-sw-update--success>button,.lx-sw-update--error>button{color:#cbd5e1;background:0 0;justify-self:end}.lx-sw-update--success{border-color:#86efac61}.lx-sw-update--error{border-color:#fca5a56b}@media (max-width:600px){.lx-sw-update{right:max(12px, env(safe-area-inset-right));bottom:max(12px, env(safe-area-inset-bottom));width:calc(100vw - 24px);padding:16px}.lx-sw-update__actions{grid-template-columns:1fr;display:grid}.lx-sw-update button{width:100%}}
.lx-review-sync{z-index:1100;right:max(18px, env(safe-area-inset-right));bottom:max(18px, env(safe-area-inset-bottom));width:min(560px,100vw - 36px);color:var(--text);pointer-events:none;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#0a101ef7;border:1px solid #94a3b85c;border-radius:18px;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:12px;padding:14px 16px;display:grid;position:fixed;box-shadow:0 18px 54px #0000006b}.lx-review-sync__indicator{background:#38bdf8;border-radius:999px;width:12px;height:12px;box-shadow:0 0 0 5px #38bdf824}.lx-review-sync>div{gap:3px;min-width:0;display:grid}.lx-review-sync strong{font-size:14px;line-height:1.3}.lx-review-sync span:not(.lx-review-sync__indicator){color:#cbd5e1;font-size:13px;line-height:1.45}.lx-review-sync button{color:#f8fafc;pointer-events:auto;background:#ffffff14;border:1px solid #ffffff29;border-radius:12px;min-width:44px;min-height:44px;padding:9px 13px;font-weight:750}.lx-review-sync button:hover{background:#ffffff21}.lx-review-sync--offline{border-color:#fbbf2475}.lx-review-sync--offline .lx-review-sync__indicator{background:#fbbf24;box-shadow:0 0 0 5px #fbbf2424}.lx-review-sync--pending .lx-review-sync__indicator{animation:1.4s ease-in-out infinite lx-review-sync-pulse}.lx-review-sync--failed{border-color:#f8717180}.lx-review-sync--failed .lx-review-sync__indicator{background:#f87171;box-shadow:0 0 0 5px #f8717124}.lx-review-sync--synced{border-color:#4ade806b}.lx-review-sync--synced .lx-review-sync__indicator{background:#4ade80;box-shadow:0 0 0 5px #4ade8024}@keyframes lx-review-sync-pulse{0%,to{opacity:.55;transform:scale(.9)}50%{opacity:1;transform:scale(1.08)}}@media (max-width:719px){.lx-review-sync{right:max(10px, env(safe-area-inset-right));bottom:calc(var(--lx-compact-navigation-height,76px) + 24px + env(safe-area-inset-bottom));grid-template-columns:auto minmax(0,1fr);width:calc(100vw - 20px);padding:13px}body:has(.lx-lesson-focus-mode) .lx-review-sync{bottom:max(10px, env(safe-area-inset-bottom))}.lx-review-sync button{grid-column:1/-1;width:100%}}@media (prefers-reduced-motion:reduce){.lx-review-sync--pending .lx-review-sync__indicator{animation:none}}
.lx-catalog-search{align-items:stretch;gap:10px;margin:16px 0;display:flex}.lx-catalog-search label{flex:1}.lx-catalog-search input{width:100%;min-height:46px;color:var(--lx-text);background:#ffffff06;border:1px solid #96a6c933;border-radius:13px;padding:0 15px}.lx-catalog-pagination-shell{gap:12px;margin:18px 0;display:grid}.lx-catalog-pagination-shell>p{color:var(--lx-muted);margin:0;font-size:14px}.lx-catalog-pagination{border-top:1px solid var(--lx-border);border-bottom:1px solid var(--lx-border);justify-content:space-between;align-items:center;gap:12px;padding:12px 0;display:flex}.lx-catalog-pagination>span{color:var(--lx-text);text-align:center;font-size:14px;font-weight:760}.lx-phrase-grid>[role=listitem]{min-width:0}.lx-phrase-grid>[role=listitem]>button{width:100%;height:100%}@media (max-width:680px){.lx-catalog-search{grid-template-columns:1fr 1fr;display:grid}.lx-catalog-search label{grid-column:1/-1}.lx-catalog-pagination{grid-template-columns:1fr 1fr;display:grid}.lx-catalog-pagination>span{grid-area:1/1/auto/-1}}
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