:root{--bg:#f6f7f9;--surface:#fff;--ink:#17202e;--muted:#566072;--border:#7a8496;--action:#2356d8;--action-deep:#1a3fa3;--on-action:#fff;--correct:#14652f;--correct-soft:#e6f6eb;--error:#a32a1e;--error-soft:#fdecea;--review:#8a4b00;--review-soft:#fff3d6;--mastered:#5b2fb8;--mastered-soft:#f0eafe;--hairline:#dde1e8}:root[data-theme=dark]{--bg:#11161e;--surface:#1a212c;--ink:#e9edf3;--muted:#a7b1c2;--border:#6d788b;--action:#8aaeff;--action-deep:#5f83d6;--on-action:#0c1220;--correct:#7be39b;--correct-soft:#12301d;--error:#ffa79e;--error-soft:#3a1a17;--review:#ffcf70;--review-soft:#33260c;--mastered:#c9b2ff;--mastered-soft:#271b47;--hairline:#2c3543}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#11161e;--surface:#1a212c;--ink:#e9edf3;--muted:#a7b1c2;--border:#6d788b;--action:#8aaeff;--action-deep:#5f83d6;--on-action:#0c1220;--correct:#7be39b;--correct-soft:#12301d;--error:#ffa79e;--error-soft:#3a1a17;--review:#ffcf70;--review-soft:#33260c;--mastered:#c9b2ff;--mastered-soft:#271b47;--hairline:#2c3543}}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}button,a,input,textarea,select{touch-action:manipulation}a{color:var(--action);text-underline-offset:3px}body{background:var(--bg);color:var(--ink);font-family:var(--font-golos), system-ui, sans-serif;margin:0;font-size:17px;line-height:1.45}.screen{flex-direction:column;gap:16px;width:100%;max-width:480px;min-height:100dvh;margin:0 auto;padding:24px 20px 20px;display:flex}.screen.wide{max-width:760px;min-height:0}.screen h1{letter-spacing:-.01em;margin:0;font-size:27px;font-weight:800;line-height:1.15}.screen h2{margin:0;font-size:23px;font-weight:800;line-height:1.2}.screen p{max-width:65ch;margin:0}.prose{flex-direction:column;gap:12px;display:flex}.prose h2,.prose h3{margin:8px 0 0;font-size:20px;font-weight:700;line-height:1.25}.prose ul,.prose ol{margin:0;padding-left:22px}.muted{color:var(--muted)}.small{font-size:15px;line-height:1.4}.row{justify-content:space-between;align-items:center;gap:12px;display:flex}.push{margin-top:auto}.stack{flex-direction:column;gap:12px;display:flex}.ico{flex:none;width:20px;height:20px}.strong{font-weight:600}.btn{width:100%;min-height:56px;font:inherit;cursor:pointer;text-align:center;background:var(--action);color:var(--on-action);box-shadow:0 4px 0 var(--action-deep);border:0;border-radius:16px;padding:0 16px;font-size:18px;font-weight:700;line-height:1.2;transition:transform .1s ease-out,box-shadow .1s ease-out;display:block}a.btn{justify-content:center;align-items:center;text-decoration:none;display:flex}.btn:active{box-shadow:0 1px 0 var(--action-deep);transform:translateY(3px)}.btn:disabled{opacity:.55;cursor:default}.ghost{border:1.5px solid var(--border);width:100%;min-height:48px;color:var(--ink);font:inherit;cursor:pointer;background:0 0;border-radius:14px;justify-content:center;align-items:center;padding:0 14px;font-size:16px;font-weight:600;line-height:1.2;text-decoration:none;display:flex}.ghost.inline{width:auto}.btn:focus-visible,.ghost:focus-visible,a:focus-visible,.step-btn:focus-visible,.mic:focus-visible,.item-link:focus-visible,.field:focus-visible{outline:3px solid var(--action);outline-offset:3px}.mini-wrap{flex-direction:column;flex:none;align-items:flex-end;gap:4px;display:flex}.mini-word{color:var(--muted);white-space:nowrap;font-size:13px;font-weight:600;line-height:1.2}.mini{flex:none;align-items:flex-end;gap:3px;height:26px;display:inline-flex}.mini i{background:var(--hairline);border-radius:2px;width:7px;display:block}.mini i:first-child{height:8px}.mini i:nth-child(2){height:14px}.mini i:nth-child(3){height:20px}.mini i:nth-child(4){height:26px}.mini i.on{background:var(--action)}.stairs{grid-template-columns:repeat(4,minmax(0,1fr));align-items:end;gap:4px;margin-top:4px;display:grid}.stair{background:var(--action);color:var(--on-action);border-radius:12px 12px 4px 4px;flex-direction:column;justify-content:flex-end;gap:4px;padding:10px 6px;font-size:13px;font-weight:600;line-height:1.2;transition:background-color .28s ease-out,color .28s ease-out,box-shadow .28s ease-out;display:flex}.stair.top{background:var(--mastered);color:var(--mastered-soft)}.stair.rise{animation:.28s ease-out stair-rise}@keyframes stair-rise{0%{transform-origin:bottom;transform:translateY(14px)scaleY(.92)}to{transform-origin:bottom;transform:none}}.stair:first-child{height:76px}.stair:nth-child(2){height:112px}.stair:nth-child(3){height:148px}.stair:nth-child(4){height:184px}.stair.todo{background:var(--surface);color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--border)}.stair .ico{width:18px;height:18px}.stair small{color:var(--muted);font-size:13px;font-weight:500}.list{background:var(--surface);border-radius:18px;flex-direction:column;padding:4px 14px;display:flex}.item{align-items:center;gap:12px;min-height:76px;padding:14px 0;display:flex}.item+.item{border-top:1px solid var(--hairline)}.item .body{flex:1;min-width:0}.item strong{font-weight:600;line-height:1.3;display:block}.item-link{color:inherit;flex:1;align-items:center;gap:12px;min-width:0;min-height:44px;text-decoration:none;display:flex}.order{flex-direction:column;flex:none;gap:4px;display:flex}.order .step-btn{width:44px;height:44px;font-size:18px}.chip{border-radius:999px;align-items:center;gap:6px;padding:5px 10px;font-size:15px;font-weight:600;line-height:1.2;display:inline-flex}.chip.review{background:var(--review-soft);color:var(--review)}.chip.correct{background:var(--correct-soft);color:var(--correct)}.chip.error{background:var(--error-soft);color:var(--error)}.chip.mastered{background:var(--mastered-soft);color:var(--mastered)}.stepper{white-space:nowrap;flex:none;align-items:center;gap:6px;display:flex}.step-btn{border:1.5px solid var(--border);width:44px;height:44px;color:var(--ink);font:inherit;cursor:pointer;background:0 0;border-radius:12px;flex:none;font-size:22px;font-weight:600;line-height:1}.step-btn:disabled{opacity:.4;cursor:default}.plan{background:var(--surface);border-radius:18px;padding:12px 14px}.bar{background:var(--hairline);border-radius:99px;height:10px;margin-top:8px;overflow:hidden}.bar i{background:var(--action);border-radius:99px;height:100%;transition:width .3s ease-out;display:block}.problem{text-align:center;font-variant-numeric:lining-nums;overflow-wrap:anywhere;padding:18px 0 10px;font-size:34px;font-weight:700}.formula{font-size:16px;overflow:auto hidden}.formula .katex-display{margin:10px 0}.problem-text{font-size:19px;font-weight:500;line-height:1.4}.field{background:var(--surface);width:100%;min-height:58px;color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--border);font:inherit;border:0;border-radius:14px;padding:0 16px;font-size:22px;font-weight:600}textarea.field{resize:vertical;min-height:140px;padding:14px 16px;font-size:17px;font-weight:400;line-height:1.45}input.field.small-field{font-size:17px;font-weight:500}.field.bad{box-shadow:inset 0 0 0 2px var(--error)}.field.good{box-shadow:inset 0 0 0 2px var(--correct)}.field-wrap{display:block;position:relative}.field-wrap .field{padding-right:52px}.field-mark{pointer-events:none;display:flex;position:absolute;top:50%;right:16px;transform:translateY(-50%)}.field-mark.bad{color:var(--error)}.field-mark.good{color:var(--correct)}.feedback{background:var(--error-soft);color:var(--ink);border-radius:16px;padding:16px}.feedback b{color:var(--error);align-items:center;gap:8px;margin-bottom:6px;font-size:18px;display:flex}.feedback.ok{background:var(--correct-soft)}.feedback.ok b{color:var(--correct)}.feedback.note{background:var(--review-soft)}.feedback.note b{color:var(--review)}.alert{color:var(--error);font-weight:600}.steps3{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;margin:10px 0 0;padding:0;list-style:none;display:grid}.steps3 li{border-top:4px solid var(--hairline);color:var(--muted);flex-direction:column;gap:2px;padding-top:8px;display:flex}.steps3 .label{font-size:14px;font-weight:600;line-height:1.2}.steps3 .state{align-items:center;gap:4px;font-size:13px;font-weight:500;line-height:1.2;display:flex}.steps3 .state .ico{width:14px;height:14px}.steps3 .done{border-color:var(--action);color:var(--ink)}.steps3 .now{border-color:var(--action);color:var(--action)}.steps3 .now .label{font-weight:800}.say{background:var(--surface);border-radius:18px 18px 18px 4px;padding:14px 16px;font-weight:500}.heard{border-left:3px solid var(--hairline);padding:2px 0 2px 14px}.rec{background:var(--surface);border-radius:18px;align-items:center;gap:14px;padding:12px 14px;display:flex}.mic{cursor:pointer;background:var(--action);width:56px;height:56px;color:var(--on-action);box-shadow:0 3px 0 var(--action-deep);border:0;border-radius:50%;flex:none;place-items:center;display:grid}.wave{align-items:center;gap:3px;height:34px;display:flex}.wave i{background:var(--action);border-radius:2px;width:3px}.mic:disabled{opacity:.5;cursor:default}.mic.on{background:var(--action-deep);color:var(--on-action);box-shadow:0 0 0 4px var(--hairline), 0 0 0 7px var(--action-deep)}.checks{flex-direction:column;gap:10px;display:flex}.check-row{justify-content:space-between;align-items:center;gap:10px;min-height:34px;display:flex}.table{border-collapse:collapse;background:var(--surface);border-radius:14px;width:100%;font-size:15px;overflow:hidden}.table th,.table td{text-align:left;border-bottom:1px solid var(--hairline);vertical-align:middle;padding:6px 12px}.table a{align-items:center;min-height:44px;display:inline-flex}.table th{color:var(--muted);font-weight:600}.topbar{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.plan-summary{flex-direction:column;gap:4px;display:flex}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}.btn:active{transform:none}}.parent-nav{flex-wrap:wrap;gap:4px 20px;width:100%;max-width:760px;margin:0 auto;padding:8px 20px 0;display:flex}.parent-nav a{align-items:center;min-height:44px;font-weight:600;display:inline-flex}.parent-footer{flex-wrap:wrap;gap:8px;width:100%;max-width:760px;margin:0 auto;padding:0 20px 28px;display:flex}.account{flex-wrap:wrap;gap:8px;display:flex}.table-scroll{overflow-x:auto}.health-row{align-items:flex-start}.health-row .body{flex:1;min-width:0}.figure{color:var(--ink);margin:8px 0}.figure svg{fill:none;stroke:currentColor;stroke-width:2px;stroke-linejoin:round;stroke-linecap:round;width:100%;max-width:420px;height:auto;margin:0 auto;display:block}.figure .figure-point{fill:currentColor;stroke:none}.figure .figure-label{fill:currentColor;stroke:none;font-size:15px;font-weight:600}.progress-line{font-variant-numeric:tabular-nums}.theme-title{margin:0;font-size:17px;font-weight:600;line-height:1.3}.test-clock{font-variant-numeric:tabular-nums;font-weight:600}.test-clock.short{color:var(--error)}.grade{font-variant-numeric:lining-nums;font-size:44px;font-weight:700;line-height:1}.review-item+.review-item{border-top:1px solid var(--hairline);padding-top:12px}a.chip{align-items:center;min-height:44px;text-decoration:none;display:inline-flex}
@font-face{font-family:Golos Text;font-style:normal;font-weight:400;font-display:swap;src:url(../media/bddbed5a02673403-s.0fq57cj8krwmf.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Golos Text;font-style:normal;font-weight:400;font-display:swap;src:url(../media/e0d4ce99e5a5209f-s.p.1jwcpm6w583_v.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Golos Text;font-style:normal;font-weight:400;font-display:swap;src:url(../media/334cd5dd39b11686-s.2ocajiqvilzpk.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Golos Text;font-style:normal;font-weight:400;font-display:swap;src:url(../media/e93dad723b20f1c1-s.p.3psl0_mnhzy2y.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Golos Text;font-style:normal;font-weight:500;font-display:swap;src:url(../media/bddbed5a02673403-s.0fq57cj8krwmf.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Golos Text;font-style:normal;font-weight:500;font-display:swap;src:url(../media/e0d4ce99e5a5209f-s.p.1jwcpm6w583_v.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Golos Text;font-style:normal;font-weight:500;font-display:swap;src:url(../media/334cd5dd39b11686-s.2ocajiqvilzpk.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Golos Text;font-style:normal;font-weight:500;font-display:swap;src:url(../media/e93dad723b20f1c1-s.p.3psl0_mnhzy2y.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Golos Text;font-style:normal;font-weight:600;font-display:swap;src:url(../media/bddbed5a02673403-s.0fq57cj8krwmf.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Golos Text;font-style:normal;font-weight:600;font-display:swap;src:url(../media/e0d4ce99e5a5209f-s.p.1jwcpm6w583_v.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Golos Text;font-style:normal;font-weight:600;font-display:swap;src:url(../media/334cd5dd39b11686-s.2ocajiqvilzpk.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Golos Text;font-style:normal;font-weight:600;font-display:swap;src:url(../media/e93dad723b20f1c1-s.p.3psl0_mnhzy2y.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Golos Text;font-style:normal;font-weight:700;font-display:swap;src:url(../media/bddbed5a02673403-s.0fq57cj8krwmf.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Golos Text;font-style:normal;font-weight:700;font-display:swap;src:url(../media/e0d4ce99e5a5209f-s.p.1jwcpm6w583_v.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Golos Text;font-style:normal;font-weight:700;font-display:swap;src:url(../media/334cd5dd39b11686-s.2ocajiqvilzpk.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Golos Text;font-style:normal;font-weight:700;font-display:swap;src:url(../media/e93dad723b20f1c1-s.p.3psl0_mnhzy2y.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Golos Text;font-style:normal;font-weight:800;font-display:swap;src:url(../media/bddbed5a02673403-s.0fq57cj8krwmf.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Golos Text;font-style:normal;font-weight:800;font-display:swap;src:url(../media/e0d4ce99e5a5209f-s.p.1jwcpm6w583_v.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Golos Text;font-style:normal;font-weight:800;font-display:swap;src:url(../media/334cd5dd39b11686-s.2ocajiqvilzpk.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Golos Text;font-style:normal;font-weight:800;font-display:swap;src:url(../media/e93dad723b20f1c1-s.p.3psl0_mnhzy2y.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Golos Text Fallback;src:local(Arial);ascent-override:90.27%;descent-override:20.26%;line-gap-override:0.0%;size-adjust:108.57%}._SjzoW_className{font-family:Golos Text,Golos Text Fallback;font-style:normal}._SjzoW_variable{--font-golos:"Golos Text", "Golos Text Fallback"}