:root{--bg:#f6f7fb;--card:#fff;--ink:#172033;--muted:#5b6474;--line:#e5e8ef;--blue:#a34e24;--green:#1e9b74;--soft:#faf1ea;--lock:#a0a7b4;--amber:#b7791f}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;font-size:16.5px;line-height:1.6;-webkit-font-smoothing:antialiased}button,input{font:inherit}button{cursor:pointer}header{position:sticky;top:0;background:#f6f7fbf2;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);z-index:20}.top{padding:12px 20px;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}.logo{font-size:24px;font-weight:950}.logo b{color:var(--blue)}.nav{display:flex;gap:6px;align-items:center}.nav button,.nav a{border:1px solid var(--line);background:#fff;border-radius:11px;padding:8px 14px;font-weight:800;color:#344054;text-decoration:none;display:inline-block}.nav button.on{background:var(--blue);border-color:var(--blue);color:#fff}.uname{font-weight:800;font-size:14px;color:var(--muted);padding:0 4px;max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.wrap{padding:20px 0 70px}#viewDict{max-width:1120px;margin:0 auto;padding:0 18px}#viewAuth{max-width:560px;margin:0 auto;padding:0 18px}.hprog{display:flex;align-items:center;gap:9px;font-size:14px}.hbar{width:96px;height:7px;background:#e9edf3;border-radius:999px;overflow:hidden}.hbar i{display:block;height:100%;background:var(--green);width:0;transition:width .3s}.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:18px;box-shadow:0 10px 28px #19253f0d}.progress{height:9px;background:#e9edf3;border-radius:999px;overflow:hidden}.progress i{display:block;height:100%;background:var(--green);width:0;transition:width .3s}.main{display:block;padding-left:378px;padding-right:24px}@media (min-width:1720px){.main{padding-left:24px}}.course-list{position:fixed;left:0;top:59px;bottom:0;width:354px;overflow-y:auto;padding:14px 12px 40px;background:var(--bg);border-right:1px solid var(--line);display:grid;gap:8px;align-content:start;z-index:10}.lesson{max-width:975px;margin:0 auto;padding:30px 36px}.mod-head{width:100%;border:0;background:none;display:flex;align-items:center;gap:7px;font-size:12.5px;font-weight:900;color:var(--muted);letter-spacing:.05em;text-transform:uppercase;margin:10px 0 2px;padding:4px 2px;text-align:left;border-radius:8px}.mod-head:hover{color:var(--blue);background:var(--soft)}.mod-head .chev{display:inline-block;transition:transform .2s;font-size:11px}.mod-head.closed .chev{transform:rotate(-90deg)}.mod-head .mcount{margin-left:auto;font-weight:800;font-size:11.5px;color:var(--lock);text-transform:none;letter-spacing:0}.mod-wrap{display:grid;grid-template-rows:1fr;transition:grid-template-rows .32s ease}.mod-wrap.closed{grid-template-rows:0fr}.mod-inner{overflow:hidden;min-height:0;display:grid;gap:8px}.mod-wrap.closed .mod-inner{pointer-events:none}.lesson-btn{width:100%;border:1px solid var(--line);background:#fff;border-radius:15px;padding:12px;text-align:left;display:grid;grid-template-columns:40px 1fr auto;gap:10px;align-items:center}.lesson-btn.active{border-color:var(--blue);background:var(--soft)}.lesson-btn.locked{cursor:not-allowed}.lesson-btn.locked b,.lesson-btn.locked small,.lesson-btn.locked .num{opacity:.55}.lesson-btn.trainer{border-style:dashed}.num{width:40px;height:40px;border-radius:12px;background:#f2f4f7;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:14px}.active .num{background:var(--blue);color:#fff}.lesson-btn b{display:block;font-size:14.5px}.lesson-btn small{display:block;color:var(--muted);margin-top:2px;font-size:13px;line-height:1.4}.status{font-size:13px;font-weight:900;color:var(--green)}.locked .status{color:#c9940a}.lesson h2{font-size:31px;margin:8px 0;letter-spacing:-.01em}.done-badge{display:inline-block;background:#eaf8f3;color:var(--green);border:1px solid #b6e3d2;font-weight:850;border-radius:999px;padding:6px 13px;font-size:13.5px;margin:4px 0 8px;animation:popIn .35s ease}.lesson h3{font-size:19px;margin:24px 0 10px}.kicker{font-size:12px;font-weight:850;color:#c9940a;letter-spacing:.03em}.goal{color:var(--muted);line-height:1.65;font-size:16px}.theory{line-height:1.85;padding-left:22px;font-size:16.5px}.theory li{margin-bottom:11px}.gtable{width:100%;border-collapse:collapse;margin:14px 0;font-size:15.5px}.gtable th{background:#f2f5fb;text-align:left;padding:9px 11px;border:1px solid var(--line);font-size:13px}.gtable td{padding:11px 13px;border:1px solid var(--line)}.gtable td b{color:var(--blue);font-weight:inherit}.examples{display:grid;gap:8px;margin:12px 0}.example{background:#f8f9fc;border-radius:13px;padding:13px 16px;display:flex;justify-content:space-between;align-items:center;gap:10px}.example>div b{display:block;font-size:17.5px}.example>div span{display:block;color:var(--muted);font-size:14px;margin-top:3px}.spk{border:1px solid var(--line);background:#fff;border-radius:9px;padding:6px 9px;font-size:15px;flex-shrink:0}.spk:hover{background:var(--soft)}.vocab-sec{border-top:1px solid var(--line);margin-top:20px;padding-top:16px}.vocab-sec h3{margin:0 0 4px}.words{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:9px;margin-top:12px}.w{border:1px solid var(--line);border-radius:13px;padding:10px 12px;background:#fff}.w .row{display:flex;justify-content:space-between;align-items:center;gap:6px}.w .kz{font-weight:800;font-size:16.5px}.w .ru{color:var(--muted);font-size:13.5px;margin-top:2px}.w .th{margin-top:6px;font-size:11.5px;color:var(--blue);background:var(--soft);display:inline-block;padding:2px 8px;border-radius:7px;font-weight:700}.exercise{margin-top:18px;border-top:1px solid var(--line);padding-top:18px}.option{width:100%;border:1px solid var(--line);background:#fff;padding:12px;border-radius:11px;text-align:left;margin:6px 0}.option.correct{background:#eaf8f3;border-color:#72ccb0}.option.wrong{background:#fff1f0;border-color:#e5a2a2}.answer-input{width:100%;padding:12px;border:1px solid var(--line);border-radius:11px}.tokens{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:10px}.token{border:1px solid var(--line);background:#fff;padding:8px 10px;border-radius:9px}.built{min-height:48px;background:#f8f9fc;border:1px dashed #cbd0da;border-radius:11px;padding:11px;margin-bottom:10px}.primary,.secondary,.ghost{border:0;border-radius:12px;padding:11px 15px;font-weight:850}.primary{background:var(--blue);color:#fff}.secondary{background:var(--green);color:#fff}.ghost{background:#f2f4f7;color:#344054}.feedback{font-weight:850;margin-top:9px;line-height:1.5}.complete{text-align:center;padding:24px}.complete .big{font-size:48px}.note{background:#fff8e8;border:1px solid #f1d99e;border-radius:13px;padding:13px 14px;line-height:1.6;margin:12px 0;font-size:14.5px}.compare-box{background:#f8f9fc;border-left:4px solid #c9940a;padding:13px 14px;border-radius:10px;margin:9px 0;line-height:1.6}.roadmap{position:relative;display:grid;margin:18px 0 6px;padding-left:22px}.roadmap:before{content:"";position:absolute;left:8px;top:18px;bottom:18px;width:2px;background:#e8d9ae}.stage{position:relative;padding:0 0 18px 22px}.stage:last-child{padding-bottom:0}.stage:before{content:"";position:absolute;left:-20px;top:5px;width:12px;height:12px;border-radius:50%;background:#c9940a;box-shadow:0 0 0 4px #f8f0da}.stage b{display:block;margin-bottom:3px}.stage span{display:block;color:var(--muted);line-height:1.5;font-size:14px}.dictbar{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0 10px}.dictbar input{flex:1;min-width:200px;padding:11px 13px;border:1px solid var(--line);border-radius:11px}.chips{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}.chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 12px;font-size:13px;font-weight:700;color:#475467}.chip.on{background:var(--blue);border-color:var(--blue);color:#fff}.sortrow{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin-bottom:12px}.sortrow span{font-size:13px;color:var(--muted);font-weight:700}.letter-head{grid-column:1/-1;font-size:15px;font-weight:900;color:var(--blue);margin:8px 0 -2px;border-bottom:2px solid var(--soft);padding-bottom:3px}.flash{border:1px solid var(--line);border-radius:16px;padding:26px;text-align:center;background:#fbfcfe;margin:12px 0}.flash .big{font-size:34px;font-weight:900;margin-bottom:8px}.flash .rev{font-size:18px;color:var(--green);font-weight:700;min-height:26px}.fmodes{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:16px;align-items:center}.playbig{width:64px;height:64px;border-radius:50%;border:0;background:var(--blue);color:#fff;font-size:26px;cursor:pointer}.dont{border:1px solid #e5a2a2;background:#fff1f0;color:#b54848;border-radius:12px;padding:11px 15px;font-weight:850}.dstat{display:flex;gap:18px;flex-wrap:wrap;background:#f8f9fc;border-radius:13px;padding:12px 14px;margin-top:6px}.dstat div b{display:block;font-size:20px}.dstat div span{font-size:12.5px;color:var(--muted)}.hidden{display:none}.auth-card{margin-top:0}.field{margin-bottom:12px}.field label{display:block;font-size:13px;font-weight:700;color:var(--muted);margin-bottom:5px}.auth-err{color:#b54848;font-weight:700;margin:8px 0;line-height:1.5}@media (max-width:1000px){.main{display:flex;flex-direction:column;gap:18px;padding:0 16px}.lesson{padding:20px 18px}.course-list{position:static;width:auto;border-right:0;padding:0;order:2}.lesson{order:1;max-width:none;margin:0}.hbar{width:60px}}button{transition:background .16s,border-color .16s,color .16s,transform .12s,box-shadow .16s,opacity .16s}button:active:not(:disabled){transform:scale(.97)}.nav button:hover:not(.on),.nav a:hover{border-color:#e3c6b2;background:var(--soft)}.lesson-btn:hover:not(.locked):not(.active){border-color:#e3c6b2;transform:translate(3px)}.chip:hover:not(.on){border-color:#e3c6b2;background:var(--soft)}.option:hover:not(:disabled){border-color:var(--blue);background:var(--soft)}.token:hover:not(:disabled){border-color:var(--blue);transform:translateY(-1px)}.token:disabled{opacity:.35;transform:scale(.93)}.primary:hover,.secondary:hover{filter:brightness(1.08);box-shadow:0 4px 14px #a34e2440}.ghost:hover{background:#e8ebf1}.spk:hover{background:var(--soft);border-color:#e3c6b2}.w{transition:box-shadow .18s,transform .18s}.w:hover{box-shadow:0 6px 18px #19253f14;transform:translateY(-2px)}@keyframes fadeUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}@keyframes popIn{0%{transform:scale(1)}45%{transform:scale(1.03)}to{transform:scale(1)}}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-6px)}40%{transform:translate(5px)}60%{transform:translate(-3px)}80%{transform:translate(2px)}}@keyframes bounceIn{0%{transform:scale(.4);opacity:0}55%{transform:scale(1.15)}75%{transform:scale(.95)}to{transform:scale(1);opacity:1}}@keyframes pulse{0%,to{box-shadow:0 0 #a34e2459}50%{box-shadow:0 0 0 7px #a34e2400}}.lesson-anim{animation:fadeUp .32s ease}.view-anim{animation:fadeUp .28s ease}.exercise{animation:fadeUp .3s ease}.example,.gtable,.vocab-sec{animation:fadeUp .35s ease backwards}.option.correct{animation:popIn .3s ease}.option.wrong{animation:shake .4s ease}.feedback.show{animation:fadeUp .28s ease}.complete{animation:fadeUp .3s ease}.complete .big{display:inline-block;animation:bounceIn .55s cubic-bezier(.34,1.56,.64,1)}.spk.playing{background:var(--soft);border-color:var(--blue);animation:pulse 1.1s ease infinite}.playbig.playing{animation:pulse 1.1s ease infinite}.built.flash{border-color:var(--blue);background:var(--soft)}.built{transition:border-color .2s,background .2s}.letter-head,.mod-head{transition:color .16s}#toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%) translateY(20px);background:#172033;color:#fff;padding:11px 18px;border-radius:12px;font-size:14px;font-weight:700;opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;z-index:99;max-width:90vw;text-align:center}#toast.on{opacity:1;transform:translate(-50%)}@media (prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}