: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:2px;display:flex}.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:hover{color:#ffffffeb;background:#ffffff0f}.nav a.active{color:#fff;background:linear-gradient(90deg,#635bff4d,#635bff0a);font-weight:800}.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:10px 6px}.teacherCard{background:#ffffff14;border:1px solid #ffffff1f;border-radius:20px;margin-top:auto;padding:16px}.teacherCard small{color:#ffffff8c}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{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}.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}.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}@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}.adminTabs{border-bottom:1px solid var(--line);flex-wrap:wrap;gap:22px;margin-bottom:26px;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}.blockLabel{letter-spacing:.1em;color:var(--muted);text-transform:uppercase;margin-bottom:10px;font-size:10px;font-weight:900}.teacherNoteBox{background:var(--primary-soft);border:1px solid #635bff2e;border-radius:14px;margin-bottom:14px;padding:14px 16px}.teacherNoteBox .blockLabel{color:var(--primary);opacity:.85;margin-bottom:6px}.teacherNoteBox p{margin:0;line-height:1.6}.lp-nav a:hover{color:var(--primary)!important}.lp-btn-outline:hover{border-color:var(--primary)!important;color:var(--primary)!important}.lp-btn-primary:hover{opacity:.9}.lp-hero-cta:hover{transform:translateY(-2px);box-shadow:0 24px 55px #635bff59}.lp-chart-bar:hover{opacity:.75}.lp-phone:hover{transform:translateY(-8px);box-shadow:0 30px 60px #15182738}.lp-cta-white:hover{transform:translateY(-2px)}.lp-cta-outline:hover{background:#ffffff38!important}.lp-feature:hover{box-shadow:var(--shadow);transform:translateY(-6px);border-color:var(--line)!important}.lp-feature:hover .lp-feature-example{opacity:1!important;max-height:60px!important;margin-top:8px!important}.lp-exercise-row:hover{box-shadow:0 8px 20px #15182712}details.lp-faq{transition:background .2s}details.lp-faq summary{list-style:revert}details.lp-faq summary::-webkit-details-marker{color:var(--primary)}@keyframes heroReveal{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}@keyframes blobFloat{0%,to{transform:translate(0)scale(1)}50%{transform:translate(24px,-18px)scale(1.06)}}@keyframes blobFloat2{0%,to{transform:translate(0)scale(1)}50%{transform:translate(-20px,16px)scale(1.08)}}@keyframes orbPulse{0%,to{transform:translate(-50%,-50%)scale(1)}50%{transform:translate(-50%,-50%)scale(1.045)}}@keyframes orbTwinkle{0%,to{opacity:.5}50%{opacity:1}}@keyframes orbDrift{0%,to{transform:translate(-50%,-50%)rotate(0)}50%{transform:translate(-50%,-50%)rotate(2.5deg)}}@media (prefers-reduced-motion:reduce){.lp-reveal,.lp-blob,.lp-orb-core,.lp-orb-ring,.lp-orb-letter{animation:none!important}}@media (max-width:1000px){.lp-nav{display:none!important}}@media (max-width:900px){.lp-grid-3,.lp-grid-2{grid-template-columns:1fr!important}}