:root{--navy-900:#0a1f6b;--navy-800:#102a8c;--royal-700:#1a3bbf;--royal-600:#2350e0;--royal-500:#3b6bff;--violet-500:#6b5cff;--cyan-400:#2ee6ff;--cyan-300:#7ff3ff;--bg:#eef2f9;--card:#fff;--ink:#0f1b3d;--muted:#6b7694;--line:#e3e8f3;--ok:#12b886;--danger:#e03b5a;--radius:18px;--shadow:0 10px 30px #102a8c1a;--shadow-lg:0 24px 60px #0a1f6b38;--grad-hero:linear-gradient(135deg, #0d2a9e 0%, #1f47d6 55%, #2b5cf0 100%);--grad-cyan:linear-gradient(135deg, #2ee6ff, #4aa8ff);color:var(--ink);background:var(--bg);font-family:Poppins,system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{background:var(--bg);-webkit-font-smoothing:antialiased}h1,h2,h3,h4{letter-spacing:-.01em;margin:0}button{font:inherit}.muted{color:var(--muted)}.small{font-size:.85rem}.logo{color:var(--navy-900);align-items:center;gap:10px;font-size:1.1rem;font-weight:700;display:inline-flex}.logo--light{color:#fff}.logo svg{filter:drop-shadow(0 4px 14px #2ee6ff73)}.btn{cursor:pointer;border:0;border-radius:999px;justify-content:center;align-items:center;gap:8px;padding:12px 22px;font-weight:600;transition:transform .15s,box-shadow .15s,opacity .15s;display:inline-flex}.btn:hover:not(:disabled){transform:translateY(-1px)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn--primary{background:linear-gradient(135deg, var(--royal-600), var(--navy-800));color:#fff;box-shadow:0 10px 24px #2350e059}.btn--cyan{background:var(--grad-cyan);color:var(--navy-900);box-shadow:0 8px 22px #2ee6ff66}.btn--pill-dark{background:var(--navy-800);color:#fff;padding:9px 18px;font-size:.85rem}.hero .btn--pill-dark{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#ffffff24;border:1px solid #ffffff40}.btn--sm{padding:7px 16px;font-size:.8rem}.btn--block{width:100%}.link{color:var(--royal-600);cursor:pointer;background:0 0;border:0;padding:0;font-weight:600}.chip{border-radius:999px;align-items:center;gap:6px;padding:6px 14px;font-size:.8rem;font-weight:600;display:inline-flex}.chip--glass{color:#fff;background:#ffffff24;border:1px solid #ffffff40}.chip--cyan{color:var(--cyan-300);background:#2ee6ff29;border:1px solid #2ee6ff66}.chip--ok{color:var(--ok);background:#12b8861f}.level-pick{flex-wrap:wrap;gap:6px;display:inline-flex}.chip--pick{color:var(--navy-800);cursor:pointer;background:#fff;border:1px solid #102a8c40;font-family:inherit}.chip--pick:hover{border-color:var(--navy-800)}.chip--on{background:var(--navy-800);color:#fff;border-color:var(--navy-800)}.tag{text-transform:uppercase;letter-spacing:.06em;color:var(--royal-600);font-size:.7rem;font-weight:700}.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid #fff9}.checks{flex-wrap:wrap;gap:10px 22px;margin:22px 0 0;padding:0;list-style:none;display:flex}.checks li{color:#dfe7ff;align-items:center;gap:8px;font-size:.92rem;display:inline-flex}.checks svg{color:var(--cyan-400)}.lead{color:#c9d6ff;max-width:520px;margin:14px 0 0;font-size:1.05rem;line-height:1.6}.glow{color:var(--cyan-300);text-shadow:0 0 24px #2ee6ff8c}.orb{flex-shrink:0;position:relative}.orb__halo{filter:blur(18px);background:radial-gradient(circle,#2ee6ff59,#0000 65%);border-radius:50%;position:absolute;inset:8%}.orb__ring{border:5px solid var(--cyan-400);box-shadow:0 0 22px var(--cyan-400), 0 0 60px #2ee6ff99, inset 0 0 26px #2ee6ff99;border-radius:50%;animation:4s ease-in-out infinite pulse;position:absolute;inset:14%}.orb__core{color:#fff;background:radial-gradient(circle at 35% 30%,#8b7dff,#4b3fd8 55%,#2a2a9e);border-radius:50%;align-content:center;place-items:center;gap:4px;display:grid;position:absolute;inset:20%}.orb__hello{letter-spacing:.02em;font-size:1.1rem;font-weight:700}.orb__bubble{color:#fff;background:radial-gradient(circle at 30% 30%,#6d8bff,#2c3fd0);border-radius:50%;place-items:center;animation:6s ease-in-out infinite 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12px;font-size:.78rem;font-weight:600;transition:opacity .15s;position:absolute;top:calc(100% + 8px);left:50%;transform:translate(-50%);box-shadow:0 6px 18px #00000040}.orb__core--link:after{top:auto;bottom:14%}.orb__bubble--link:hover:after,.orb__bubble--link:focus-visible:after,.orb__core--link:hover:after,.orb__core--link:focus-visible:after{opacity:1}.orb__dot{background:var(--cyan-400);width:12px;height:12px;box-shadow:0 0 12px var(--cyan-400);border-radius:50%;position:absolute}.orb__dot--sm{width:7px;height:7px}@keyframes float{0%,to{transform:translate(-50%,-50%)}50%{transform:translate(-50%,calc(-50% - 10px))}}@keyframes pulse{0%,to{box-shadow:0 0 22px var(--cyan-400), 0 0 60px #2ee6ff8c, inset 0 0 26px #2ee6ff8c}50%{box-shadow:0 0 30px var(--cyan-400), 0 0 90px #2ee6ffbf, inset 0 0 34px #2ee6ffb3}}@media (prefers-reduced-motion:reduce){.orb__bubble,.orb__ring{animation:none}}.auth{background:var(--bg);grid-template-columns:1.25fr 1fr;min-height:100vh;display:grid}.auth__hero{background:var(--grad-hero);color:#fff;border-radius:0 0 48px;flex-direction:column;padding:36px 56px 120px;display:flex;position:relative;overflow:hidden}.auth__hero:before,.hero:before{content:"";pointer-events:none;background:radial-gradient(circle,#2ee6ff40,#0000 70%);border-radius:50%;width:420px;height:420px;position:absolute;top:-120px;right:-120px}.auth__hero-body{flex:1;justify-content:space-between;align-items:center;gap:40px;margin-top:30px;display:flex;position:relative}.auth__hero-body>div:first-child,.hero__text{flex:1;min-width:0}.auth__hero-body .orb{margin-right:24px}.auth__hero h1{font-size:clamp(2rem,3.6vw,3.1rem);font-weight:700;line-height:1.12}.auth__wave,.hero__wave{width:100%;height:90px;fill:var(--bg);position:absolute;bottom:-1px;left:0}.auth__panel{place-items:center;padding:40px 28px;display:grid}.auth__card{width:100%;max-width:420px;box-shadow:var(--shadow-lg);gap:16px;padding:36px;display:grid}.auth__card h2{color:var(--navy-900);font-size:1.6rem}.auth__card .muted{margin:-8px 0 4px}.field{color:var(--navy-900);gap:6px;font-size:.85rem;font-weight:600;display:grid}.field input{border:1.5px solid var(--line);font:inherit;background:#f8faff;border-radius:14px;padding:13px 16px;font-weight:400;transition:border-color .15s,box-shadow .15s}.field input:focus{border-color:var(--royal-500);background:#fff;outline:none;box-shadow:0 0 0 4px #3b6bff26}.switch{text-align:center;color:var(--muted);margin:0;font-size:.9rem}.alert{color:#8a5a00;background:#fff7e6;border-radius:12px;padding:11px 14px;font-size:.88rem}.alert--error{color:var(--danger);background:#fdecef}.alert--ok{color:#0b7a58;background:#e7f8f1}.hero{background:var(--grad-hero);color:#fff;padding:22px 0 110px;position:relative;overflow:hidden}.topbar,.hero__body,.container{width:min(1180px,100% - 40px);margin:0 auto}.topbar{z-index:1;justify-content:space-between;align-items:center;display:flex;position:relative}.topbar__right{align-items:center;gap:10px;display:flex}.hero__body{justify-content:space-between;align-items:center;gap:24px;margin-top:30px;display:flex;position:relative}.hero__text h1{margin-top:16px;font-size:clamp(1.9rem,3.4vw,2.9rem);font-weight:700}.container{padding:10px 0 60px}.layout{grid-template-columns:1fr 320px;align-items:start;gap:28px;display:grid}.section-head{justify-content:space-between;align-items:baseline;gap:12px;margin:8px 0 16px;display:flex}.section-head h2{color:var(--navy-900);font-size:1.3rem}.section-head+.lessons{margin-top:0}.unit-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:18px;margin-bottom:34px;display:grid}.unit{flex-direction:column;transition:transform .2s,box-shadow .2s;display:flex;overflow:hidden}.unit:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}.unit__art{color:#fff;background:radial-gradient(circle at 75% 20%, #2ee6ff8c, transparent 45%), linear-gradient(135deg, var(--royal-600), var(--violet-500));border-radius:14px;place-items:center;height:118px;margin:10px 10px 0;display:grid;position:relative}.unit:nth-child(3n+2) .unit__art{background:radial-gradient(circle at 20% 80%, #2ee6ff80, transparent 45%), linear-gradient(135deg, var(--navy-800), var(--royal-500))}.unit:nth-child(3n) .unit__art{background:radial-gradient(circle at 80% 80%, #ffffff59, transparent 45%), linear-gradient(135deg, #3a8bff, var(--cyan-400))}.unit__num{background:#fff3;border-radius:999px;padding:3px 9px;font-size:.75rem;font-weight:700;position:absolute;top:10px;left:12px}.unit__body{flex:1;gap:6px;padding:14px 16px 16px;display:grid}.unit h3{color:var(--navy-900);font-size:1rem}.unit .muted.small{margin:0}.unit__foot{justify-content:space-between;align-items:center;margin-top:6px;display:flex}.unit--locked{opacity:.72}.unit--locked .unit__art{filter:grayscale(.5)}.bar{background:var(--line);border-radius:99px;height:6px;margin-top:4px;overflow:hidden}.bar span{background:var(--grad-cyan);border-radius:99px;height:100%;display:block}.lessons{gap:12px;margin:0;padding:0;list-style:none;display:grid}.lesson{align-items:center;gap:16px;padding:14px 18px;display:flex}.lesson__icon{width:46px;height:46px;color:var(--royal-600);background:#eaf0ff;border-radius:14px;flex-shrink:0;place-items:center;display:grid}.lesson--completed .lesson__icon{color:var(--ok);background:#12b8861f}.lesson__main{flex:1;min-width:0}.lesson h4{color:var(--navy-900);margin:2px 0;font-size:.98rem}.lesson p{margin:0}.panel{background:linear-gradient(160deg, var(--royal-600), var(--navy-800));color:#fff;box-shadow:var(--shadow-lg);border-radius:22px;gap:20px;padding:26px 22px;display:grid;position:sticky;top:20px;overflow:hidden}.panel__blob{width:60%;fill:var(--cyan-400);opacity:.85;position:absolute;top:0;right:0}.panel h3{font-size:1.2rem;position:relative}.panel__icons{justify-content:space-between;display:flex}.panel__icons span{color:#dfe7ff;border:1.5px solid #ffffff59;border-radius:50%;place-items:center;width:40px;height:40px;display:grid}.panel__icons span:first-child{border-color:var(--cyan-400);color:var(--cyan-300);box-shadow:0 0 14px #2ee6ff80}.slider{background:#fff3;border-radius:99px;height:4px;position:relative}.slider span{background:var(--cyan-400);box-shadow:0 0 10px var(--cyan-400);border-radius:99px;position:absolute;top:0;bottom:0;left:0}.slider i{background:var(--cyan-400);width:16px;height:16px;box-shadow:0 0 0 4px #2ee6ff40, 0 0 14px var(--cyan-400);border-radius:50%;position:absolute;top:50%;transform:translate(-50%,-50%)}.panel__stats{text-align:center;grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.panel__stats b{font-size:1.35rem;display:block}.panel__stats span{color:#c9d6ff;font-size:.72rem}.skeleton-grid{grid-template-columns:repeat(3,1fr);gap:18px;display:grid}.skeleton{background:linear-gradient(90deg,#fff,#f1f4fb,#fff) 0 0/200% 100%;height:230px;animation:1.4s infinite shimmer}@keyframes shimmer{to{background-position:-200% 0}}.splash{background:var(--grad-hero);place-items:center;min-height:100vh;display:grid}.spinner{border:4px solid #fff3;border-top-color:var(--cyan-400);border-radius:50%;width:46px;height:46px;animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (width<=980px){.auth{grid-template-columns:1fr}.auth__hero{border-radius:0 0 36px 36px;padding:24px 22px 100px}.auth__hero-body{flex-direction:column;margin-top:24px}.auth__panel{z-index:1;margin-top:-80px;position:relative}.layout{grid-template-columns:1fr}.panel{position:static}.hero__body{flex-direction:column;align-items:flex-start}.hero .orb{align-self:center}}@media (width<=560px){.topbar{flex-wrap:wrap;gap:10px 0}.logo{white-space:nowrap}.topbar__right{flex-wrap:wrap;gap:8px;width:100%}.topbar__right .chip,.topbar__right .btn{white-space:nowrap;padding:6px 12px;font-size:.78rem}.orb{width:240px!important;height:240px!important}.auth__card{padding:26px 20px}.checks{gap:8px 16px}.skeleton-grid{grid-template-columns:1fr}.lesson{flex-wrap:wrap}}.btn--ghost{color:var(--navy-800);border:1.5px solid var(--line);background:#fff}.btn--wide{min-width:min(100%,320px);padding:14px 28px;font-size:1rem}.chip--xp{color:#8a5a00;background:linear-gradient(135deg,#fff4d6,#ffe7a3)}.chip--big{padding:9px 18px;font-size:.95rem}.chip--bad{color:var(--danger);background:#e03b5a1a}.txt-ok{color:var(--ok)}.txt-bad{color:var(--danger)}.icon-btn{border:1px solid var(--line);cursor:pointer;width:42px;height:42px;color:var(--navy-800);background:#fff;border-radius:50%;flex-shrink:0;place-items:center;display:grid}.bar--lg{background:#dfe6f5;flex:1;height:10px;margin:0}.bar--lg span{transition:width .4s}.bar--bad span{background:linear-gradient(135deg, #ff8a9b, var(--danger))}.splash--light{background:var(--bg)}.page-center{place-items:center;min-height:100vh;padding:20px;display:grid}.empty{text-align:center;gap:12px;max-width:420px;padding:32px;display:grid}.player{background:var(--bg);min-height:100vh}.player__top{z-index:5;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#eef2f9eb;align-items:center;gap:16px;padding:14px max(20px,50% - 380px);display:flex;position:sticky;top:0}.player__body{gap:18px;width:min(760px,100% - 32px);margin:0 auto;padding:8px 0 60px;display:grid}.player__actions{justify-content:center;margin-top:6px;display:flex}.player__actions--stack{flex-direction:column;align-items:center;gap:12px}.player__actions--split{justify-content:space-between;gap:12px}.lesson-hero{background:var(--grad-hero);color:#fff;box-shadow:var(--shadow-lg);border-radius:24px;padding:28px;position:relative;overflow:hidden}.lesson-hero:after{content:"";border:4px solid var(--cyan-400);width:220px;height:220px;box-shadow:0 0 30px var(--cyan-400);opacity:.55;border-radius:50%;position:absolute;top:-60px;right:-60px}.lesson-hero h1{margin:12px 0 6px;font-size:clamp(1.6rem,4vw,2.2rem)}.lesson-hero p{color:#c9d6ff;margin:0}.lesson-hero--center{text-align:center;justify-items:center;gap:4px;display:grid}.lesson-hero--center svg{color:var(--cyan-300)}.intro{color:#2a3558;margin:0;font-size:1.05rem;line-height:1.65}.block{padding:22px}.block h3{color:var(--navy-900);margin-bottom:12px;font-size:1.05rem}.examples{gap:8px;margin:0;padding:0;list-style:none;display:grid}.examples li{background:#f5f8ff;border-radius:12px;justify-content:space-between;align-items:center;gap:12px;padding:10px 14px;display:flex}.examples li div{gap:2px;display:grid}.examples b{color:var(--navy-900);font-size:1.02rem}.examples .muted{font-size:.88rem}.say{cursor:pointer;background:var(--grad-cyan);width:36px;height:36px;color:var(--navy-900);vertical-align:middle;border:0;border-radius:50%;flex-shrink:0;place-items:center;display:inline-grid;box-shadow:0 4px 12px #2ee6ff59}.en-cell .say{width:28px;height:28px;margin-left:4px}.en-cell .say svg{width:14px;height:14px}.table-wrap{overflow-x:auto}.grid{border-collapse:collapse;width:100%;font-size:.92rem}.grid th{text-align:left;background:var(--navy-800);color:#fff;padding:9px 12px;font-weight:600}.grid th:first-child{border-radius:10px 0 0 10px}.grid th:last-child{border-radius:0 10px 10px 0}.grid td{border-bottom:1px solid var(--line);padding:9px 12px}.grid td:first-child,.grid td:nth-child(2){color:var(--navy-900);font-weight:600}.tip{color:var(--navy-900);background:linear-gradient(135deg,#2ee6ff24,#3b6bff1a);border:1px solid #2ee6ff66;border-radius:14px;align-items:flex-start;gap:10px;padding:14px 16px;font-size:.93rem;line-height:1.5;display:flex}.tip svg{color:var(--royal-600);flex-shrink:0;margin-top:2px}.dialogue{gap:10px;display:grid}.bubble{background:#eef3ff;border-radius:18px 18px 18px 4px;max-width:82%;padding:12px 16px}.bubble--right{background:linear-gradient(135deg, var(--royal-600), var(--navy-800));color:#fff;border-radius:18px 18px 4px;justify-self:end}.bubble__who{text-transform:uppercase;letter-spacing:.06em;opacity:.7;font-size:.72rem;font-weight:700}.bubble__en{justify-content:space-between;align-items:center;gap:8px;margin:4px 0 2px;font-weight:600;display:flex}.bubble__en .say{width:30px;height:30px}.bubble__pt{opacity:.75;margin:0;font-size:.86rem}.step{color:var(--navy-900);margin:0;font-weight:600}.step span{color:var(--muted);font-weight:500}.ex-card{padding:26px}.ex{gap:16px;display:grid}.ex__q{color:var(--navy-900);margin:0;font-size:1.2rem;font-weight:600;line-height:1.4}.options{gap:10px;display:grid}.option{text-align:left;border:2px solid var(--line);cursor:pointer;color:var(--ink);background:#fff;border-radius:14px;align-items:center;gap:14px;padding:14px 16px;font-size:1rem;transition:border-color .15s,background .15s,transform .1s;display:flex}.option:hover:not(:disabled){border-color:var(--royal-500)}.option__key{width:30px;height:30px;color:var(--navy-800);background:#eef2fb;border-radius:9px;flex-shrink:0;place-items:center;font-size:.85rem;font-weight:700;display:grid}.option--on{border-color:var(--royal-600);background:#f1f5ff}.option--on .option__key{background:var(--royal-600);color:#fff}.option--ok{border-color:var(--ok);background:#e9f9f2}.option--ok .option__key{background:var(--ok)}.option--bad{border-color:var(--danger);background:#fdeef1}.option--bad .option__key{background:var(--danger)}.option:disabled{cursor:default}.ex__sentence{color:var(--navy-900);margin:0;font-size:1.3rem;font-weight:600;line-height:2.2}.blank{font:inherit;color:var(--royal-600);border:0;border-bottom:3px solid var(--royal-500);text-align:center;background:#f1f5ff;border-radius:8px 8px 0 0;outline:none;margin:0 4px;padding:2px 10px;font-weight:700}.blank:focus{background:#e6eeff;box-shadow:0 6px 16px -8px #3b6bff99}.blank--ok{color:var(--ok);border-color:var(--ok);background:#e9f9f2}.blank--bad{color:var(--danger);border-color:var(--danger);background:#fdeef1}.answer-line{background:#f8faff;border:2px dashed #c8d3ee;border-radius:14px;flex-wrap:wrap;align-items:center;gap:8px;min-height:64px;padding:12px;display:flex}.answer-line--ok{border-style:solid;border-color:var(--ok);background:#e9f9f2}.answer-line--bad{border-style:solid;border-color:var(--danger);background:#fdeef1}.word-bank{flex-wrap:wrap;justify-content:center;gap:10px;min-height:48px;display:flex}.chip-word{border:2px solid var(--line);font:inherit;color:var(--navy-900);cursor:pointer;background:#fff;border-radius:12px;padding:10px 16px;font-weight:600;transition:transform .1s;box-shadow:0 3px #dfe6f5}.chip-word:hover:not(:disabled){transform:translateY(-2px)}.chip-word--on{border-color:var(--royal-500);background:#eef3ff;box-shadow:0 3px #c9d6ff}.chip-word:disabled{cursor:default}.link.small{align-items:center;gap:6px;display:inline-flex}.match{grid-template-columns:1fr 1fr;gap:12px;display:grid}.match__col{align-content:start;gap:10px;display:grid}.match__item{border:2px solid var(--line);font:inherit;color:var(--navy-900);cursor:pointer;text-align:center;background:#fff;border-radius:12px;padding:12px 14px;font-weight:600;transition:border-color .15s,background .15s}.match__item--pending{border-color:var(--cyan-400);background:#e9fcff;box-shadow:0 0 0 4px #2ee6ff40}.match__item--target{border-style:dashed;border-color:#9fb3ea}.match__item--ok{background:#e9f9f2}.match__item--bad{background:#fdeef1}.match__item:disabled{cursor:default}.feedback{border-radius:16px;align-items:flex-start;gap:14px;padding:16px 18px;animation:.25s pop;display:flex}.feedback p{margin:4px 0 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14px;font-size:.92rem}.attempts-note--wait{color:#7a4b00;background:#fff4e0}.attempts-note--ok{color:#1d6b3e;background:#e6f7ee}.review-note{margin:4px 0 10px}.chip--kids{color:var(--navy-900);background:linear-gradient(135deg,#ffe066,#ffb020);font-weight:700;box-shadow:0 3px #d98a00}.chip--kids.chip--link:hover{background:linear-gradient(135deg,#fff07a,#ffc240)}.kids-promo{color:inherit;background:linear-gradient(135deg,#fff,#fff8e6);border:1.5px solid #ffb0208c;align-items:center;gap:16px;margin-bottom:22px;padding:16px 20px;text-decoration:none;transition:transform .15s;display:flex}.kids-promo:hover{transform:translateY(-2px)}.kids-promo img{flex-shrink:0;animation:4s ease-in-out infinite float-y}.kids-promo>div{flex:1;min-width:0}.kids-promo h3{color:var(--navy-900);font-size:1.05rem}.kids-promo p{margin:2px 0 0}.kids-promo__tag{text-transform:uppercase;letter-spacing:.06em;color:#c77d00;font-size:.7rem;font-weight:700}@keyframes float-y{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}@media (width<=560px){.kids-promo{flex-wrap:wrap}}