:root{--bg:#f6f7fb;--panel:#fff;--text:#151827;--muted:#7a8194;--line:#e7e9f0;--primary:#635bff;--primary2:#00c2ff;--primary-soft:#ebe9ff;--green:#18a058;--green-soft:#e9f8ef;--orange:#f59e0b;--orange-soft:#fff4dc;--red:#e5484d;--red-soft:#ffecec;--blue-soft:#eaf3ff;--surface:#f8f9fd;--shadow:0 20px 50px #15182714;--radius:24px;--border:var(--line);--card-bg:var(--panel);--text-secondary:var(--muted);--text-muted:var(--muted);--color-green:var(--green);--color-blue:var(--primary2);--color-red:var(--red);--color-amber:var(--orange)}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}.app{grid-template-columns:280px 1fr;min-height:100vh;display:grid}.sidebar{color:#fff;background:#101223;flex-direction:column;gap:28px;padding:28px 22px;display:flex}.logo{align-items:center;gap:12px;font-size:21px;font-weight:900;display:flex}.logoMark{background:linear-gradient(135deg,#635bff,#00c2ff);border-radius:14px;place-items:center;width:42px;height:42px;display:grid;box-shadow:0 12px 30px #635bff59}.nav{flex-direction:column;gap:14px;display:flex}.navGroup{flex-direction:column;gap:2px;display:flex}.navGroupLabel{letter-spacing:.08em;text-transform:uppercase;color:#ffffff59;padding:0 16px 2px;font-size:10.5px;font-weight:800}.nav a{color:#ffffff8c;letter-spacing:-.01em;border-radius:12px;padding:12px 16px;font-size:14.5px;font-weight:700;transition:color .15s,background .15s;display:block;position:relative}.nav a.active{color:#fff;background:linear-gradient(90deg,#635bff4d,#635bff0a);font-weight:800}.nav a.navLocked{color:#ffffff52;justify-content:space-between;align-items:center;gap:8px;display:flex}.nav a.navLocked svg{opacity:.75;flex-shrink:0}.nav a.active:before{content:"";background:linear-gradient(180deg,var(--primary2),var(--primary));border-radius:3px;width:3px;height:16px;position:absolute;top:50%;left:0;transform:translateY(-50%)}.navDivider{background:#ffffff1a;height:1px;margin:0 6px}.teacherCard{background:#ffffff14;border:1px solid #ffffff1f;border-radius:20px;margin-top:auto;padding:16px}main{min-width:0;padding:30px}.topbar{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:28px;display:flex}h1{letter-spacing:-.04em;margin:0;font-size:34px}.subtitle{color:var(--muted);margin-top:6px}.actions{flex-wrap:wrap;gap:12px;display:flex}.button,button,.btnPrimary,.btnSecondary,.btnDanger{cursor:pointer;border:0;border-radius:16px;align-items:center;gap:8px;padding:13px 18px;font-size:14px;font-weight:900;display:inline-flex}.btnPrimary{background:var(--primary);color:#fff;box-shadow:0 12px 28px #635bff40}.btnSecondary{color:var(--text);border:1px solid var(--line);background:#fff}.btnDanger{background:var(--red);color:#fff;box-shadow:0 12px 28px #e5484d40}.grid4{grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:22px;display:grid}.grid3{grid-template-columns:1.2fr .9fr .9fr;gap:18px;margin-bottom:22px;display:grid}.grid2{grid-template-columns:1fr 1fr;gap:18px;margin-bottom:22px;display:grid}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}.metricTitle{color:var(--muted);font-size:13px;font-weight:800}.metricValue{letter-spacing:-.04em;margin-top:8px;font-size:34px;font-weight:950}.metricNote{color:var(--green);margin-top:8px;font-size:13px;font-weight:800}.sectionTitle{justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;display:flex}.sectionTitle h2{letter-spacing:-.02em;margin:0;font-size:20px}.pill{background:var(--primary-soft);color:var(--primary);white-space:nowrap;border-radius:999px;padding:7px 11px;font-size:12px;font-weight:900}.pill.green{background:var(--green-soft);color:var(--green)}.pill.orange{background:var(--orange-soft);color:#a15c00}.pill.red{background:var(--red-soft);color:var(--red)}.list{flex-direction:column;gap:12px;display:flex}.row{border:1px solid var(--line);background:#fff;border-radius:18px;grid-template-columns:44px 1fr auto;align-items:center;gap:13px;padding:12px;display:grid}.avatar{background:var(--blue-soft);border-radius:16px;place-items:center;width:44px;height:44px;font-weight:950;display:grid}.row h3{margin:0;font-size:15px}.row p{color:var(--muted);margin:3px 0 0;font-size:13px}.activity{flex-direction:column;gap:14px;display:flex}.activityItem{gap:12px;display:flex}.dot{background:var(--primary);border-radius:50%;width:10px;height:10px;margin-top:6px}.activityItem strong{display:block}.activityItem span{color:var(--muted);font-size:13px}.summaryBox{background:linear-gradient(135deg,#f4f2ff,#eef8ff);border:1px solid #dedcff;border-radius:22px;padding:18px;line-height:1.55}.formGrid{grid-template-columns:1fr 1fr;gap:14px;display:grid}label{color:var(--muted);margin-bottom:8px;font-size:13px;font-weight:900;display:block}input:not([type=checkbox]):not([type=radio]),select,textarea{border:1px solid var(--line);width:100%;font:inherit;color:var(--text);background:#fff;border-radius:15px;padding:13px 14px}textarea{resize:vertical;min-height:112px}.full{grid-column:1/-1}.bars{flex-direction:column;gap:14px;display:flex}.barRow{grid-template-columns:110px 1fr 38px;align-items:center;gap:12px;font-size:13px;font-weight:900;display:grid}.bar{background:#eef0f6;border-radius:999px;height:10px;overflow:hidden}.bar span{background:linear-gradient(90deg,#635bff,#00c2ff);border-radius:999px;height:100%;display:block}.errorCard{border:1px solid var(--line);background:#fff;border-radius:18px;padding:14px}.wrong{color:var(--red);font-weight:950}.right{color:var(--green);font-weight:950}.toolbar{flex-wrap:wrap;gap:12px;margin-bottom:18px;display:flex}.search{max-width:360px}.table{border-collapse:separate;border-spacing:0 10px;width:100%}.table th{text-align:left;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-size:12px}.table td{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff;padding:14px}.table td:first-child{border-left:1px solid var(--line);border-radius:16px 0 0 16px}.table td:last-child{border-right:1px solid var(--line);border-radius:0 16px 16px 0}.kpi{flex-wrap:wrap;gap:10px;display:flex}.kpi span{border:1px solid var(--line);background:#f8f9fd;border-radius:14px;padding:10px 12px;font-weight:800}.chartFake{align-items:end;gap:12px;height:260px;padding-top:20px;display:flex}.chartBar{background:linear-gradient(#635bff,#00c2ff);border-radius:14px 14px 6px 6px;flex:1;min-height:40px}.muted{color:var(--muted)}.authScreen{background:var(--bg);place-items:center;min-height:100vh;padding:24px;display:grid}.authCard{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);width:100%;max-width:400px;box-shadow:var(--shadow);flex-direction:column;gap:12px;padding:32px;display:flex}.authCard .logo{align-items:center;gap:12px;margin-bottom:8px;font-size:18px;font-weight:900;display:flex}.authCard h1{letter-spacing:-.03em;margin:0;font-size:26px}.authCard label{margin-top:4px}.authError{background:var(--red-soft);color:var(--red);border-radius:14px;padding:12px 14px;font-size:14px;font-weight:700}.authDivider{text-align:center;color:var(--muted);margin:4px 0;font-size:13px;font-weight:700}.authLinks{justify-content:space-between;margin-top:10px;font-size:13px;font-weight:800;display:flex}.authLinks a{color:var(--primary)}.authLoading{min-height:100vh;color:var(--muted);place-items:center;font-weight:800;display:grid}.tgFlow{align-items:flex-start;gap:0;margin:10px 0 6px;display:flex}.tgStep{text-align:center;flex-direction:column;flex:1;align-items:center;gap:10px;display:flex;position:relative}.tgStep p{color:var(--muted);margin:0;font-size:12px;font-weight:800;line-height:1.3}.tgStep.is-done p,.tgStep.is-active p,.tgStep.is-error p{color:var(--text)}.tgIcon{background:var(--surface);border:2px solid var(--line);width:40px;height:40px;color:var(--muted);z-index:1;border-radius:50%;flex-shrink:0;place-items:center;display:grid;position:relative}.tgStep.is-done .tgIcon{background:var(--green-soft);border-color:var(--green);color:var(--green);animation:.45s cubic-bezier(.34,1.56,.64,1) sp-stepDonePop}.tgStep.is-active .tgIcon{background:var(--primary-soft);border-color:var(--primary);color:var(--primary);animation:2.4s ease-in-out infinite roadmapPulseHorizontal}.tgStep.is-error .tgIcon{background:var(--red-soft);border-color:var(--red);color:var(--red)}.tgLine{background:var(--line);z-index:0;width:100%;height:2px;position:absolute;top:19px;left:50%}.tgStep.is-done .tgLine{background:var(--green)}.tgStep.is-active .tgLine{background:linear-gradient(90deg,var(--green),var(--line))}@media (prefers-reduced-motion:reduce){.tgStep.is-done .tgIcon,.tgStep.is-active .tgIcon{animation:none}}.roleToggle{background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:18px;gap:8px;padding:6px;display:flex}.roleToggle button{color:var(--muted);box-shadow:none;background:0 0;border-radius:13px;flex:1;justify-content:center;padding:11px 10px;font-size:13.5px;font-weight:800}.roleToggle button.is-active{background:var(--primary);color:#fff;box-shadow:0 10px 22px #635bff47}.authTabs{background:var(--surface);border-radius:13px;gap:6px;margin:2px 0 4px;padding:4px;display:flex}.authTabs button{color:var(--muted);box-shadow:none;background:0 0;border-radius:10px;flex:1;justify-content:center;padding:8px 10px;font-size:13px;font-weight:800}.authTabs button.is-active{color:var(--text);background:#fff;box-shadow:0 4px 10px #15182714}.authCheckbox{color:var(--muted);align-items:flex-start;gap:9px;margin-top:2px;font-size:12.5px;font-weight:600;line-height:1.5;display:flex}.authCheckbox input{width:16px;height:16px;accent-color:var(--primary);flex-shrink:0;margin-top:3px}.authCheckbox a{color:var(--primary);font-weight:800}body.hasCookieBanner{padding-bottom:220px}.namePromptOverlay{z-index:1010;background:#15182773;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.namePromptCard{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);width:100%;max-width:360px;box-shadow:var(--shadow);flex-direction:column;gap:12px;padding:26px;display:flex}.namePromptCard h3{letter-spacing:-.02em;margin:0;font-size:19px}.namePromptActions{justify-content:flex-end;gap:10px;margin-top:4px;display:flex}.supportLauncher{z-index:900;align-items:center;gap:10px;display:flex;position:fixed;bottom:76px;right:18px}.supportFab{background:var(--primary);color:#fff;cursor:pointer;border:0;border-radius:50%;flex-shrink:0;place-items:center;width:52px;height:52px;display:grid;position:relative;box-shadow:0 12px 28px #635bff59}.supportFab:hover{filter:brightness(1.05)}.supportFabBadge{background:var(--red);color:#fff;border-radius:999px;justify-content:center;align-items:center;min-width:18px;height:18px;padding:0 4px;font-size:10px;font-weight:800;display:flex;position:absolute;top:-4px;right:-4px}.supportBubble{background:var(--panel);border:1px solid var(--line);max-width:190px;box-shadow:var(--shadow);border-radius:16px;padding:10px 24px 10px 14px;animation:.3s cubic-bezier(.34,1.56,.64,1) supportBubbleIn;position:relative}.supportBubble p{color:var(--text);margin:0;font-size:12.5px;font-weight:600;line-height:1.4}.supportBubble:after{content:"";background:var(--panel);border-right:1px solid var(--line);border-bottom:1px solid var(--line);width:12px;height:12px;position:absolute;top:50%;right:-6px;transform:translateY(-50%)rotate(45deg)}.supportBubbleClose{color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:6px;place-items:center;padding:2px;line-height:0;display:grid;position:absolute;top:6px;right:6px}.supportBubbleClose:hover{background:var(--surface);color:var(--text)}@keyframes supportBubbleIn{0%{opacity:0;transform:translate(8px)}to{opacity:1;transform:translate(0)}}@media (prefers-reduced-motion:reduce){.supportBubble{animation:none}}.supportOverlay{z-index:1010;background:#15182773;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.supportCard{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);width:100%;max-width:400px;max-height:82vh;box-shadow:var(--shadow);flex-direction:column;gap:12px;padding:24px;display:flex}.supportCardHead{justify-content:space-between;align-items:center;gap:12px;display:flex}.supportCardHead h3{letter-spacing:-.02em;margin:0;font-size:19px}.supportCloseBtn{color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:8px;place-items:center;padding:4px;display:grid}.supportCloseBtn:hover{background:var(--surface);color:var(--text)}.supportThread{flex-direction:column;gap:8px;min-height:60px;max-height:280px;display:flex;overflow-y:auto}.supportThread .supportEmpty{color:var(--muted);margin:0;font-size:13px}.supportMsg{background:var(--surface);border-radius:14px;max-width:85%;padding:9px 12px}.supportMsg.is-support{background:var(--primary-soft);align-self:flex-end}.supportMsg span{text-transform:uppercase;color:var(--muted);margin-bottom:3px;font-size:9.5px;font-weight:700;display:block}.supportMsg p{color:var(--text);margin:0;font-size:13px;line-height:1.4}.supportComposer{align-items:flex-end;gap:10px;display:flex}.supportComposer textarea{resize:none;flex:1;min-height:40px}@media (max-width:480px){.supportLauncher{bottom:70px;right:14px}.supportFab{width:48px;height:48px}.supportBubble{max-width:150px}}.wFull{justify-content:center;width:100%}.teacherSignOut{justify-content:center;width:100%;margin-top:12px}.adSlot{border:1px solid var(--line);background:#eef0f6;border-radius:16px;justify-content:center;align-items:center;display:flex;overflow:hidden}.adTopBanner{border-top:0;border-left:0;border-right:0;border-radius:0;width:100%;height:300px}.adSidebar{width:100%;min-height:250px;margin:4px 0}.adFooter{width:100%;height:250px;margin-top:28px}.adBlogFooter{width:100%;height:250px;margin:40px 0}.adBlogIndexBanner{width:100%;height:250px;margin:8px 0 28px}@media (max-width:1100px){.app{grid-template-columns:1fr}.sidebar{position:static}.grid4,.grid3,.grid2,.formGrid{grid-template-columns:1fr}.topbar{flex-direction:column}.table{display:block;overflow:auto}.adSidebar{display:none}}.chartHead{justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:6px;display:flex}.chartHeadLeft{align-items:flex-start;gap:10px;display:flex}.chartHeadLeft h2{letter-spacing:-.02em;margin:0;font-size:19px}.chartHeadSub{margin:3px 0 0;font-size:12.5px}.chartLegendDot{width:11px;height:11px;box-shadow:0 0 0 4px color-mix(in srgb,currentColor 12%,transparent);border-radius:4px;flex-shrink:0;margin-top:5px}.chartDelta{white-space:nowrap;background:var(--line);border-radius:999px;padding:6px 10px;font-size:12.5px;font-weight:900}.chartDelta.green{background:var(--green-soft);color:var(--green)}.chartDelta.red{background:var(--red-soft);color:var(--red)}.chartDelta.grey{color:var(--muted);background:#f1f2f7}.trendChart{margin-top:6px}.trendChartSvg{width:100%;height:180px;display:block;overflow:visible}.trendGridLine{stroke:var(--line);stroke-width:1px}.trendChartAxis{color:var(--muted);justify-content:space-between;margin-top:10px;font-size:11.5px;font-weight:800;display:flex}.trendChartAxis span{text-align:center;flex:1}.trendChartAxis span:first-child{text-align:left}.trendChartAxis span:last-child{text-align:right}.barLabel{align-items:center;gap:9px;display:flex}.barDot{border-radius:3px;flex-shrink:0;width:9px;height:9px}.errorRank{background:var(--orange-soft);color:#a15c00;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;width:18px;height:18px;font-size:11px;font-weight:950;display:inline-flex}.adminTabsWrap{margin-bottom:26px}.adminCategories{flex-wrap:wrap;gap:8px;margin-bottom:16px;display:flex}.adminCategory{background:var(--surface);border:1px solid var(--line);color:var(--muted);cursor:pointer;border-radius:999px;padding:8px 16px;font-size:13px;font-weight:800;transition:color .15s,background .15s,border-color .15s;position:relative}.adminCategory:hover{color:var(--text)}.adminCategory.active{background:var(--primary);color:#fff;border-color:var(--primary)}.adminCategory .dot{background:var(--primary);border-radius:50%;width:6px;height:6px;position:absolute;top:7px;right:8px}.adminTabs{border-bottom:1px solid var(--line);flex-wrap:wrap;gap:22px;display:flex}.adminTab{color:var(--muted);white-space:nowrap;padding:0 0 12px;font-size:14px;font-weight:800;position:relative}.adminTab:hover{color:var(--text)}.adminTab.active{color:var(--primary)}.adminTab.active:after{content:"";background:linear-gradient(90deg,var(--primary),var(--primary2));border-radius:2px;height:2px;position:absolute;bottom:-1px;left:0;right:0}.collapsibleTrigger{cursor:pointer;width:100%;font:inherit;color:inherit;text-align:left;background:0 0;border:none;justify-content:space-between;align-items:center;gap:12px;padding:0;display:flex}.collapsibleChevron{color:var(--muted);flex-shrink:0;font-size:15px;font-weight:900;line-height:1;transition:transform .2s}.collapsibleChevron.open{color:var(--primary);transform:rotate(180deg)}.collapsibleBody{margin-top:14px}.showMoreBtn{color:var(--primary);cursor:pointer;background:0 0;border:none;align-items:center;gap:6px;padding:10px 0 0;font-size:13px;font-weight:800;display:inline-flex}.showMoreBtn:hover{text-decoration:underline}.heroBanner{color:#fff;isolation:isolate;background:linear-gradient(135deg,#1b1442 0%,#3a2a7a 45%,#635bff 100%);border-radius:32px;margin-bottom:22px;padding:36px 40px;position:relative;overflow:hidden}.heroBanner:before,.heroBanner:after{content:"";filter:blur(70px);opacity:.5;z-index:-1;pointer-events:none;border-radius:50%;position:absolute}.heroBanner:before{background:#00c2ff;width:280px;height:280px;top:-110px;right:40px}.heroBanner:after{background:#b97fff;width:240px;height:240px;bottom:-120px;right:180px}.heroTop{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:20px;display:flex}.heroEyebrow{letter-spacing:.08em;text-transform:uppercase;color:#ffffff8c;font-size:12px;font-weight:800}.heroTitle{letter-spacing:-.03em;margin:8px 0 0;font-size:32px;font-weight:800}.heroSubtitle{color:#ffffffb8;max-width:520px;margin-top:8px;font-size:14.5px;line-height:1.55}.heroActions{flex-wrap:wrap;gap:10px;display:flex}.heroActions .btnGhost{color:#fff;background:#ffffff1f;border:1px solid #ffffff38}.heroStats{flex-wrap:wrap;gap:32px;margin-top:28px;display:flex}.heroStat b{letter-spacing:-.03em;font-size:26px;font-weight:900;display:block}.heroStat span{color:#fff9;font-size:12.5px;font-weight:700}@media (max-width:640px){.heroBanner{padding:26px}.heroTitle{font-size:26px}}.firstSteps{margin-bottom:22px}.firstStepsHead{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:20px;display:flex}.firstStepsHead h2{letter-spacing:-.02em;margin:0 0 6px;font-size:20px}.firstStepsHead p{color:var(--muted);max-width:560px;margin:0;font-size:13.5px;line-height:1.55}.firstStepsProgress{align-items:center;gap:10px;min-width:180px;display:flex}.firstStepsProgress .bar{width:120px}.firstStepsProgress span{color:var(--muted);white-space:nowrap;font-size:13px;font-weight:900}.firstStepsNotice{background:var(--primary-soft);color:var(--primary);border-radius:14px;margin:14px 0 0;padding:10px 14px;font-size:12.5px;font-weight:800}.firstStepsList{flex-direction:column;gap:10px;margin-top:18px;display:flex}.firstStepItem{border:1px solid var(--line);background:var(--surface);border-radius:18px;grid-template-columns:40px 1fr auto;align-items:center;gap:14px;padding:14px;display:grid}.firstStepItem.is-done{background:var(--green-soft);border-color:#0000}.firstStepIcon{background:var(--primary-soft);width:40px;height:40px;color:var(--primary);border-radius:13px;flex-shrink:0;place-items:center;display:grid}.firstStepItem.is-done .firstStepIcon{background:var(--green);color:#fff}.firstStepBody h3{margin:0 0 3px;font-size:14.5px}.firstStepBody 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