:root{--bg:#f6f7f9;--card:#fff;--ink:#17223b;--muted:#5b6578;--line:#dce1ea;--primary:#24449b;--primary-d:#172f73;--primary-soft:#e8edf9;--red:#c8372d;--red-d:#9e2a22;--green:#2b7a57;--green-d:#1e5a40;--green-bg:#e2f2ea;--blue:#24449b;--blue-d:#172f73;--yellow:#e0a826;--mark:#ffe7a0;--bad-bg:#fbe7e5;--radius:14px;--tap:52px;--serif:"PT Serif", Georgia, "Times New Roman", serif;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{background:var(--bg);color:var(--ink);margin:0;overflow-x:hidden}body{min-height:100dvh;font:17px/1.5 system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif}button{font:inherit;color:inherit}a{color:inherit}:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:10px}.skip{position:absolute;left:-999px}.skip:focus{z-index:99;background:#fff;padding:8px 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var(--line);background:#fff;width:14px;height:14px;position:absolute;top:22px;left:-9px;transform:rotate(45deg)}.welcome{text-align:center;justify-content:center;align-items:center}.demo{flex-direction:column;align-items:center;gap:2px;min-width:240px;display:flex}.big-options{flex-direction:column;gap:12px;margin-top:8px;display:flex}.big-option{border-radius:var(--radius);border:2px solid var(--line);min-height:72px;box-shadow:0 4px 0 var(--line);text-align:left;cursor:pointer;background:#fff;align-items:center;gap:14px;padding:14px 18px;font-size:1.15rem;font-weight:700;display:flex}.big-option .ic{font-size:2rem}.big-option small{color:var(--muted);margin-left:auto;font-weight:600}.big-option.on,.big-option:active{border-color:var(--primary);background:var(--primary-soft)}.hud{z-index:4;background:var(--bg);justify-content:space-between;align-items:center;gap:6px;padding:8px 0;display:flex;position:sticky;top:0}.hud-item{box-shadow:0 2px 0 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var(--line);padding:6px 4px calc(6px + env(safe-area-inset-bottom));z-index:10;background:#fff;justify-content:space-around;display:flex;position:fixed;bottom:0;left:0;right:0}.nav a{max-width:120px;color:var(--muted);border-radius:12px;flex-direction:column;flex:1;align-items:center;min-height:52px;padding:4px;font-size:.8rem;font-weight:700;text-decoration:none;display:flex}.nav a.on{color:var(--primary);background:var(--primary-soft)}.nav-ic{font-size:1.5rem;position:relative}.dot{background:var(--red);color:#fff;border-radius:999px;padding:1px 6px;font-size:.7rem;font-style:normal;font-weight:800;position:absolute;top:-4px;right:-14px}.topbar{align-items:center;gap:8px;display:flex}.progress{background:var(--line);border-radius:999px;flex:1;height:16px;overflow:hidden}.progress>div{background:var(--green);border-radius:999px;height:100%;transition:width .35s}.lesson-body{flex-direction:column;gap:16px;animation:.25s ease-out slide;display:flex}@keyframes 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var(--line);flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;min-height:64px;padding:6px;display:flex}.placeholder{color:var(--muted)}.tiles{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.tile{border:2px solid var(--line);width:52px;height:56px;box-shadow:0 3px 0 var(--line);cursor:pointer;background:#fff;border-radius:12px;font-size:1.6rem;font-weight:800}.tile.used{visibility:hidden}.tile.in{background:var(--primary-soft);border-color:#cdd6ee}.sheet{padding:16px 16px calc(16px + env(safe-area-inset-bottom));z-index:20;border-radius:22px 22px 0 0;max-width:560px;margin:0 auto;animation:.2s ease-out up;position:fixed;bottom:0;left:0;right:0}@keyframes up{0%{transform:translateY(100%)}}.sheet.ok{background:var(--green-bg);color:var(--green-d)}.sheet.bad{background:var(--bad-bg);color:var(--red-d)}.sheet-title{margin:0 0 6px;font-size:1.3rem;font-weight:900}.sheet-answer{color:var(--ink);margin:0 0 12px;font-size:1.1rem}.speak{flex-direction:column;align-items:center;gap:12px;display:flex}.speak.compact .ru-text{font-size:1.8rem}.mic{background:var(--primary);width:96px;height:96px;box-shadow:0 5px 0 var(--primary-d);cursor:pointer;border:0;border-radius:50%;font-size:2.6rem}.speak.compact .mic{width:76px;height:76px;font-size:2rem}.mic.on{background:var(--red);animation:1s infinite rec}@keyframes rec{50%{box-shadow:0 0 0 16px #e8432e33, 0 6px 0 var(--red-d)}}.score-box{box-shadow:0 3px 0 var(--line);background:#fff;border-radius:16px;align-items:center;gap:14px;width:100%;padding:12px 16px;display:flex}.score-box p{margin:0}.score-msg{font-size:1.15rem;font-weight:800}.heard{color:var(--muted);font-size:.95rem}.tip-link{color:var(--blue-d);margin-top:6px;font-weight:700;display:inline-block}.ring{flex:none;place-items:center;display:inline-grid;position:relative}.ring svg{position:absolute;top:0;bottom:0;left:0;right:0}.ring-inner{font-size:1.3rem;font-weight:800;position:relative}.done{text-align:center;justify-content:center;align-items:center}.stars{letter-spacing:6px;margin:0;font-size:2.4rem}.stat-row{justify-content:center;gap:10px;width:100%;display:flex}.stat{box-shadow:0 3px 0 var(--line);background:#fff;border-radius:16px;flex-direction:column;flex:1;align-items:center;gap:4px;padding:12px 8px;display:flex}.stat b{font-size:1.4rem}.stat span{color:var(--muted);font-size:.85rem;font-weight:600}.badge-pop{border:2px solid var(--yellow);background:#fff3cf;border-radius:16px;padding:12px 16px;font-weight:600;animation:.5s pop}.badge-pop span{font-size:1.6rem}@keyframes pop{0%{opacity:0;transform:scale(.6)}70%{transform:scale(1.06)}}.flash{cursor:pointer;justify-content:center;min-height:230px}.clinic-grid{grid-template-columns:1fr 1fr;gap:12px;display:grid}.clinic-card{border-radius:var(--radius);box-shadow:0 4px 0 var(--line);text-align:center;background:#fff;flex-direction:column;align-items:center;gap:6px;padding:18px 12px;font-weight:700;text-decoration:none;display:flex}.clinic-sound{font-size:3rem;font-weight:700;font-family:var(--serif);color:var(--primary);line-height:1}.clinic-sound.inline{font-size:1.8rem}.pair{grid-template-columns:1fr 1fr;gap:10px;display:grid}.pair-card{border:2px solid var(--line);box-shadow:0 3px 0 var(--line);cursor:pointer;background:#fff;border-radius:16px;flex-direction:column;align-items:center;gap:2px;padding:12px 8px;display:flex}.pair-card .ru-text{font-size:1.6rem}.profile-head{align-items:center;gap:14px;display:flex}.profile-head h1{text-align:left;margin:0}.profile-head p{margin:2px 0 6px;font-weight:700}.level-bar{background:var(--line);border-radius:999px;width:200px;max-width:100%;height:12px;overflow:hidden}.level-bar>div{background:var(--yellow);height:100%}.save-card{text-align:center;border:2px solid #a8e2c8;flex-direction:column;align-items:center;gap:8px;display:flex}.save-card p{margin:0}.gbtn{min-height:44px}.badges{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.badge{text-align:center;box-shadow:0 3px 0 var(--line);filter:grayscale();opacity:.5;background:#fff;border-radius:16px;flex-direction:column;align-items:center;gap:2px;padding:12px 6px;display:flex}.badge.on{filter:none;opacity:1}.badge span{font-size:1.9rem}.badge small{font-size:.78rem;font-weight:700}.chip{border:2px solid var(--line);cursor:pointer;background:#fff;border-radius:999px;flex:1;min-height:48px;font-weight:700}.chip.on{border-color:var(--primary);background:var(--primary-soft);color:var(--primary)}@media (min-width:600px){.ru-text{font-size:2.8rem}}@media (prefers-reduced-motion:reduce){*,:before{transition:none!important;animation:none!important}}.sr{clip:rect(0 0 0 0);width:1px;height:1px;position:absolute;overflow:hidden}.course-pick{display:inline-flex;position:relative}.course-pick select{-webkit-appearance:none;appearance:none;border:1.5px solid var(--line);font:inherit;color:var(--ink);cursor:pointer;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235b6578' stroke-width='2' fill='none'/%3E%3C/svg%3E") right 10px center no-repeat;border-radius:999px;max-width:150px;min-height:40px;padding:7px 30px 7px 12px;font-size:.92rem;font-weight:800}button.demo{cursor:pointer;border:0}.brandbar{justify-content:space-between;align-items:center;padding:4px 0 0;display:flex}.brand{color:var(--primary);letter-spacing:-.01em;font-size:1.35rem;font-weight:900;font-family:var(--serif);align-items:center;gap:8px;text-decoration:none;display:inline-flex}.brand img{border-radius:8px}.brand.big{font-size:2rem}.brand.big img{border-radius:12px}.brand-sub{color:var(--muted);font-size:.95rem;font-weight:700}.muted{color:var(--muted)}.small-note{margin:8px 2px;font-size:.9rem}.ru-in{font-family:var(--serif);color:var(--ink);font-weight:700}.page-h{text-align:left;margin:6px 0 0;font-size:1.4rem}.page-h small{color:var(--muted);margin-left:6px;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif;font-size:.9rem;font-weight:600}.link-back{color:var(--primary);cursor:pointer;background:0 0;border:0;padding:8px 0;font-size:1rem;font-weight:700}.link-btn{color:var(--primary);cursor:pointer;background:0 0;border:0;padding:8px 4px;font-size:.95rem;font-weight:600;text-decoration:underline}.continue{background:var(--card);border:1px solid var(--line);border-left:5px solid var(--primary);border-radius:var(--radius);flex-direction:column;gap:6px;padding:16px 16px 18px;display:flex}.continue .kicker{color:var(--muted);margin:0;font-size:.92rem;font-weight:600}.continue h2{font-family:var(--serif);margin:0;font-size:1.55rem}.unit-no{color:var(--primary);vertical-align:middle;margin-right:4px;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif;font-size:1rem;font-weight:800}.ru-sub{font-family:var(--serif);color:var(--muted);margin:0;font-size:1.15rem}.continue .muted{margin:0 0 8px;font-size:.95rem}.strip{background:#fff8e1;border:1px solid #f0d78a;border-radius:12px;align-items:center;gap:8px;padding:12px 14px;text-decoration:none;display:flex}.toc-h{font-family:var(--serif);margin:10px 0 6px;font-size:1.35rem}.toc .level{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:10px;overflow:hidden}.level-head{cursor:pointer;text-align:left;background:0 0;border:0;align-items:center;gap:12px;width:100%;padding:14px;display:flex}.level-code{font-family:var(--serif);color:var(--primary);width:44px;font-size:1.5rem;font-weight:700}.level-txt{flex-direction:column;flex:1;display:flex}.level-txt small{color:var(--muted);font-size:.85rem}.level-meter{color:var(--muted);font-variant-numeric:tabular-nums;font-weight:800}.units{border-top:1px solid var(--line);margin:0;padding:0 0 6px;list-style:none}.unit-row{color:inherit;align-items:center;gap:12px;min-height:60px;padding:12px 14px;text-decoration:none;display:flex}.unit-row+.unit-row,.units li+li .unit-row{border-top:1px dashed var(--line)}.u-num{border:1.5px solid var(--line);width:34px;height:34px;color:var(--muted);font-variant-numeric:tabular-nums;border-radius:50%;flex:none;place-items:center;font-weight:800;display:grid}.u-num.s-open{border-color:var(--primary);color:#fff;background:var(--primary)}.u-num.s-passed{border-color:var(--green);color:#fff;background:var(--green)}.u-txt{flex-direction:column;flex:1;min-width:0;display:flex}.u-txt small{color:var(--muted);font-size:.84rem;line-height:1.35}.u-state{color:var(--muted);white-space:nowrap;font-size:.85rem;font-weight:700}.unit-row.s-open .u-state{color:var(--primary)}.unit-row.s-soon,.unit-row.s-locked{opacity:.62}.extras{gap:10px;margin-top:4px;display:grid}.extra{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);color:inherit;align-items:center;gap:12px;padding:14px;text-decoration:none;display:flex}.extra>span:first-child{font-size:1.6rem}.extra span span,.extra>span:last-child{flex-direction:column;display:flex}.extra small{color:var(--muted)}.topline{display:flex}.cover{text-align:left;border-bottom:1px solid var(--line);padding:6px 0 4px}.cover-level{color:var(--primary);margin:0;font-weight:800}.cover h1{text-align:left;margin:2px 0;font-size:2.1rem}.cover-ru{font-family:var(--serif);color:var(--muted);margin:0 0 12px;font-size:1.3rem}.cover-meter{color:var(--muted);align-items:center;gap:10px;margin-bottom:14px;font-weight:700;display:flex}.cover-meter .progress{height:10px}.goals h2{margin:4px 0;font-size:1rem}.goals ul{margin:6px 0 0;padding-left:20px;line-height:1.7}.sections{gap:8px;margin:4px 0 0;padding:0;list-style:none;display:grid}.sec-row{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);color:inherit;align-items:center;gap:12px;min-height:64px;padding:12px 14px;text-decoration:none;display:flex}.sec-row.next{border-color:var(--primary);box-shadow:0 0 0 1px var(--primary) inset}.sec-no{width:30px;height:30px;color:var(--muted);border:1.5px solid var(--line);border-radius:50%;flex:none;place-items:center;font-weight:800;display:grid}.sec-row.done .sec-no{background:var(--green);border-color:var(--green);color:#fff}.sec-txt{flex-direction:column;flex:1;display:flex}.sec-txt small{color:var(--muted)}.sec-score{color:var(--green);font-variant-numeric:tabular-nums;font-weight:800}.sec-bar{background:var(--bg);z-index:4;align-items:center;gap:8px;padding:4px 0;display:flex;position:sticky;top:0}.sec-title{white-space:nowrap;font-weight:800}.sec-bar .progress{height:10px}.reader .text-title{text-align:left;margin:4px 0 0;font-size:1.9rem}.toggles{flex-wrap:wrap;gap:8px;display:flex}.toggles .chip{flex:0 auto;min-height:44px;padding:0 16px}.play-all{color:var(--primary)}.notebook{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);background-image:linear-gradient(to right, transparent 74px, var(--red) 74px, var(--red) 75.5px, transparent 75.5px);padding:6px 12px 6px 0;position:relative}.line{border-bottom:1px solid #edf0f5;grid-template-columns:70px 1fr;gap:0 14px;padding:12px 0;display:grid}.line:last-child{border-bottom:0}.line.playing{background:linear-gradient(90deg,#0000 76px,#fff7d6 76px)}.who{font-family:var(--serif);color:var(--primary);text-align:right;overflow-wrap:anywhere;padding-top:3px;font-size:.95rem;font-weight:700}.line-body{flex-direction:column;gap:3px;min-width:0;display:flex}.ru-line{font-family:var(--serif);text-align:left;cursor:pointer;color:var(--ink);background:0 0;border:0;padding:0;font-size:1.32rem;line-height:1.45}.ru-line:active{color:var(--primary)}.line-body .reading{font-size:.98rem;font-weight:600}.tr-line{color:var(--muted);margin:2px 0 0}.reveal{color:var(--primary);cursor:pointer;background:0 0;border:0;align-self:flex-start;padding:2px 0;font-size:.9rem;-webkit-text-decoration:underline dotted;text-decoration:underline dotted}.wordlist{background:var(--card);border:1px solid 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