@font-face{font-display:"swap";font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_AMS-Regular.BQhdFMY1.woff2)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/_next/static/media/KaTeX_Caligraphic-Bold.Dq_IR9rO.woff2)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Caligraphic-Regular.Di6jR-x-.woff2)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/_next/static/media/KaTeX_Fraktur-Bold.CL6g_b3V.woff2)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Fraktur-Regular.CTYiF6lA.woff2)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/_next/static/media/KaTeX_Main-BoldItalic.DxDJ3AOS.woff2)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/_next/static/media/KaTeX_Main-Bold.Cx986IdX.woff2)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/_next/static/media/KaTeX_Main-Italic.NWA7e6Wa.woff2)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Main-Regular.B22Nviop.woff2)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/_next/static/media/KaTeX_Math-BoldItalic.CZnvNsCZ.woff2)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/_next/static/media/KaTeX_Math-Italic.t53AETM-.woff2)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/_next/static/media/KaTeX_SansSerif-Bold.D1sUS0GD.woff2)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/_next/static/media/KaTeX_SansSerif-Italic.C3H0VqGB.woff2)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_SansSerif-Regular.DDBCnlJ7.woff2)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Script-Regular.D3wIWfF6.woff2)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Size1-Regular.mCD8mA8B.woff2)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Size2-Regular.Dy4dx90m.woff2)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Size4-Regular.Dl5lxZxV.woff2)format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/_next/static/media/KaTeX_Typewriter-Regular.CO6r4hn1.woff2)format("woff2")}:root{--ML__static-fonts:true}@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial}::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial}}}@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before{box-sizing:border-box;border:0 solid;margin:0;padding:0}::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){-webkit-appearance:button;appearance:button}::file-selector-button{-webkit-appearance:button;appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.absolute{position:absolute}.fixed{position:fixed}.relative{position:relative}.start{inset-inline-start:var(--spacing)}.end{inset-inline-end:var(--spacing)}.isolate{isolation:isolate}.block{display:block}.contents{display:contents}.hidden{display:none}.table{display:table}.grow{flex-grow:1}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.resize{resize:both}.overline{text-decoration-line:overline}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}}:root{--ink:#0b1120;--muted:#5c6474;--paper:#f6f7f2;--surface:#fff;--line:#dce1d8;--lime:#c9ff63;--lime-deep:#9ddc32;--violet:#8175ff;--blue:#78c7ff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);font-family:var(--font-geist-sans),Arial,sans-serif;margin:0}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}:focus-visible{outline:3px solid var(--violet);outline-offset:3px}.topbar{z-index:10;border-bottom:1px solid #0b11201f;grid-template-columns:1fr auto 1fr;align-items:center;width:min(1180px,100% - 40px);height:78px;margin:0 auto;display:grid;position:relative}.brand{letter-spacing:-.025em;align-items:center;gap:10px;width:fit-content;font-size:17px;font-weight:760;display:inline-flex}.brand-mark{background:var(--ink);width:30px;height:30px;color:var(--lime);border-radius:9px;place-items:center;font-size:14px;font-weight:850;display:grid}.nav-links{color:#4d5665;gap:32px;font-size:13px;font-weight:560;display:flex}.nav-links a:hover{color:var(--ink)}.topbar>.button{justify-self:end}.nav-account-actions{justify-self:end;align-items:center;gap:18px;font-size:13px;font-weight:700;display:flex}.nav-account-actions>a:first-child{color:#4d5665}.button{cursor:pointer;border:0;border-radius:12px;justify-content:center;align-items:center;gap:10px;min-height:50px;padding:0 22px;font-size:14px;font-weight:720;transition:transform .2s,box-shadow .2s,background .2s;display:inline-flex}.button:hover{transform:translateY(-2px)}.button-small{border-radius:10px;min-height:40px;padding:0 16px;font-size:12px}.button-dark{color:#fff;background:var(--ink)}.button-dark:hover{box-shadow:0 8px 24px #0b11202e}.button-primary{color:var(--ink);background:var(--lime);box-shadow:0 8px 26px #9ddc3233}.button-primary:hover{background:#d5ff85;box-shadow:0 12px 34px #9ddc3247}.button:disabled{cursor:not-allowed;opacity:.42;box-shadow:none;transform:none}.hero{grid-template-columns:minmax(0,1fr) minmax(430px,.86fr);align-items:center;gap:clamp(48px,8vw,110px);width:min(1180px,100% - 40px);min-height:690px;margin:0 auto;padding:68px 0 72px;display:grid}.hero-copy{padding-bottom:20px}.eyebrow{color:#495260;letter-spacing:.11em;text-transform:uppercase;align-items:center;gap:9px;margin-bottom:27px;font-size:11px;font-weight:740;display:flex}.eyebrow-dot{background:var(--lime-deep);border-radius:2px;width:8px;height:8px;box-shadow:0 0 0 4px #9ddc3226}h1{letter-spacing:-.065em;margin:0;font-size:clamp(50px,5.7vw,78px);font-weight:760;line-height:.98}h1 em{color:#596172;font-family:Georgia,Times New Roman,serif;font-weight:500}.hero-subtitle{max-width:610px;color:var(--muted);letter-spacing:-.012em;margin:28px 0 0;font-size:18px;line-height:1.65}.hero-subtitle strong{color:var(--ink);font-weight:680}.hero-actions{align-items:center;gap:26px;margin-top:34px;display:flex}.text-link{border-bottom:1px solid #0b11204d;padding-bottom:3px;font-size:13px;font-weight:680}.trust-row{letter-spacing:.04em;text-transform:uppercase;color:#6b7280;gap:25px;margin-top:58px;font-size:10px;font-weight:650;display:flex}.trust-row span{align-items:center;gap:7px;display:flex}.trust-row b{color:var(--violet);font-family:var(--font-geist-mono),monospace}.demo-shell{background:var(--surface);border:1px solid #d7ddd2;border-radius:24px;padding:24px;position:relative;box-shadow:0 30px 80px #19231c1c,0 2px 8px #19231c0d}.demo-shell:before{content:"";z-index:-1;filter:blur(1px);background:linear-gradient(140deg,#c9ff6380,#8175ff38);border-radius:24px;position:absolute;inset:30px -24px -24px 34px}.demo-topline{justify-content:space-between;align-items:center;display:flex}.demo-label{letter-spacing:.1em;text-transform:uppercase;font-size:11px;font-weight:800}.demo-topline p{color:var(--muted);margin:5px 0 0;font-size:12px}.step-pill{font:650 10px var(--font-geist-mono),monospace;color:#596172;background:#f0f2ec;border-radius:999px;padding:7px 10px}.progress-track{background:#edf0ea;border-radius:10px;height:4px;margin:18px 0 20px;overflow:hidden}.progress-track span{background:linear-gradient(90deg,var(--violet),var(--blue));border-radius:inherit;height:100%;transition:width .4s;display:block}.problem-card{color:#fff;background:#0e1525;border-radius:16px;padding:22px}.problem-number{color:#9ba5b6;font:650 9px var(--font-geist-mono),monospace;letter-spacing:.12em;margin:0 0 13px}.math-problem{margin:0;font-family:Georgia,Times New Roman,serif;font-size:19px;line-height:1.52}.math-problem mark{color:var(--lime);background:0 0;border-bottom:1px solid #c9ff6380}.clue-fieldset{border:0;margin:21px 0 0;padding:0}.clue-fieldset legend{margin-bottom:11px;font-size:12px;font-weight:730}.clue-grid{gap:8px;display:grid}.clue-option{color:#3b4451;text-align:left;cursor:pointer;background:#fafbf8;border:1px solid #e1e5dc;border-radius:11px;justify-content:space-between;align-items:center;width:100%;min-height:42px;padding:0 14px;font-size:12px;transition:all .18s;display:flex}.clue-option:hover{background:#fff;border-color:#b9c0b3}.clue-option.selected{border-color:var(--violet);color:var(--ink);background:#f3f1ff;box-shadow:0 0 0 2px #8175ff1a}.demo-submit{width:100%;min-height:46px;margin-top:13px}.demo-insight{border-radius:12px;align-items:flex-start;gap:12px;margin-top:14px;padding:14px;animation:.3s both rise;display:flex}.demo-insight.correct{background:#f1fadf;border:1px solid #d4edaa}.demo-insight.retry{background:#fff7e5;border:1px solid #f0dda9}.insight-icon{background:var(--ink);color:#fff;border-radius:8px;flex:0 0 25px;place-items:center;height:25px;font-size:12px;display:grid}.demo-insight strong{font-size:12px;display:block}.demo-insight p{color:#5f6758;margin:4px 0 0;font-size:11px;line-height:1.45}.method-stage{margin-top:14px}.micro-success{color:#435333;background:#f1fadf;border-radius:10px;padding:11px 12px;font-size:11px;font-weight:620}.micro-success span{width:18px;height:18px;color:var(--lime);background:#254014;border-radius:6px;place-items:center;margin-right:6px;display:inline-grid}.method-options{grid-template-columns:repeat(3,1fr);gap:7px;margin-top:10px;display:grid}.method-chip{color:#4d5662;cursor:pointer;background:#fafbf8;border:1px solid #dfe3da;border-radius:10px;min-height:40px;padding:6px;font-size:10px;font-weight:650}.method-chip.selected{border-color:var(--violet);color:var(--ink);background:#f2f0ff}.signal-strip{background:var(--ink);color:#e7ebf2;justify-content:space-between;align-items:center;gap:24px;min-height:76px;padding:20px max(20px,50% - 590px);font-size:12px;font-weight:590;display:flex}.signal-strip span{background:var(--lime);border-radius:50%;flex:0 0 5px;width:5px;height:5px}.section{width:min(1180px,100% - 40px);margin:0 auto;padding:120px 0}.section-kicker{color:#6a7280;font:700 10px var(--font-geist-mono),monospace;letter-spacing:.14em;text-transform:uppercase;margin-bottom:24px}.section-kicker.light{color:#a9b2c1}.section h2{letter-spacing:-.055em;margin:0;font-size:clamp(42px,5vw,66px);line-height:1.02}.section-heading-row{grid-template-columns:1.3fr .7fr;align-items:end;gap:80px;display:grid}.section-heading-row>p{color:var(--muted);margin:0 0 4px;font-size:17px;line-height:1.65}.flow-grid{background:var(--line);border:1px solid var(--line);border-radius:20px;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:70px;display:grid;overflow:hidden}.flow-card{background:var(--surface);min-height:230px;padding:30px}.flow-card>span{color:var(--violet);font:700 10px var(--font-geist-mono),monospace;display:block}.flow-card h3{letter-spacing:-.035em;margin:48px 0 10px;font-size:22px}.flow-card p{color:var(--muted);margin:0;font-size:13px;line-height:1.6}.split-section{grid-template-columns:.85fr 1.15fr;align-items:center;gap:90px;display:grid}.split-copy>p{max-width:480px;color:var(--muted);margin:26px 0 34px;font-size:17px;line-height:1.65}.score-panel{border:1px solid var(--line);background:#fff;border-radius:24px;padding:34px;position:relative;box-shadow:0 28px 70px #121c1617}.score-panel:after{content:"";z-index:-1;background:#e9e6ff;border-radius:26px;position:absolute;inset:-16px 30px 18px -22px}.score-head{border-bottom:1px solid #e7eae3;justify-content:space-between;align-items:center;padding-bottom:20px;font-size:13px;font-weight:750;display:flex}.live-pill{color:#687060;text-transform:uppercase;letter-spacing:.08em;background:#eff1ec;border-radius:999px;padding:6px 9px;font-size:9px;font-weight:700}.score-bars{gap:28px;margin:30px 0;display:grid}.score-bars label{justify-content:space-between;align-items:end;font-size:12px;font-weight:680;display:flex}.score-bars label b{letter-spacing:-.05em;font-size:30px}.bar{background:#edf0ea;border-radius:999px;height:10px;margin:10px 0 7px;overflow:hidden}.bar i{background:linear-gradient(90deg,var(--violet),#aea7ff);border-radius:inherit;height:100%;display:block}.bar.execution i{background:linear-gradient(90deg,var(--lime-deep),var(--lime))}.score-bars small{color:#778071;font-size:10px}.score-insight{color:#fff;background:#0e1525;border-radius:14px;align-items:flex-start;gap:12px;padding:17px;display:flex}.score-insight>span{background:var(--lime);width:28px;height:28px;color:var(--ink);border-radius:8px;flex:0 0 28px;place-items:center;display:grid}.score-insight p{color:#b7c0ce;margin:0;font-size:11px;line-height:1.55}.score-insight b{color:#fff}.center-heading{text-align:center;max-width:720px;margin:0 auto 64px!important}.feature-section>.section-kicker{text-align:center}.bento-grid{grid-template-columns:repeat(3,1fr);gap:14px;display:grid}.bento{border:1px solid var(--line);background:#fff;border-radius:20px;min-height:300px;padding:28px;overflow:hidden}.bento h3{letter-spacing:-.045em;max-width:320px;margin:65px 0 10px;font-size:26px;line-height:1.08}.bento p{max-width:350px;color:var(--muted);margin:0;font-size:13px;line-height:1.6}.bento-dark{color:#fff;background:#0d1423;border-color:#0d1423}.bento-dark p{color:#aeb8c7}.bento-lime{background:var(--lime);border-color:#aee83e}.bento-lime p{color:#445226}.feature-code{font:700 9px var(--font-geist-mono),monospace;letter-spacing:.12em}.trigger-ui{justify-content:center;align-items:center;gap:12px;margin-top:36px;display:flex}.trigger-ui span{color:#dce4ef;font:650 10px var(--font-geist-mono),monospace;background:#182235;border:1px solid #303b4d;border-radius:10px;padding:12px}.trigger-ui b{color:var(--lime)}.dna-list{gap:8px;margin-top:38px;display:grid}.dna-list i{background:linear-gradient(90deg,var(--violet),#c0bbff);border-radius:10px;height:8px;display:block}.dna-list.empty-bars i{width:0}.replay-count{align-items:center;gap:14px;margin-top:30px;display:flex}.replay-count b{letter-spacing:-.07em;font-size:56px}.replay-count span{color:var(--muted);font-size:11px;line-height:1.3}.dictionary-term{background:#ffffff8c;border:1px solid #19260b24;border-radius:12px;justify-content:space-between;align-items:center;gap:20px;margin-top:38px;padding:15px;font-size:12px;font-weight:700;display:flex}.dictionary-term small{color:#556337;font-size:9px;font-weight:550}.bento-wide{grid-column:span 2;grid-template-columns:1fr 1fr;gap:30px;display:grid}.bento-wide h3{margin-top:65px}.pulse-calendar{color:#737b6e;font:650 10px var(--font-geist-mono),monospace;background:#f4f5f0;border-radius:16px;grid-template-columns:1fr auto;align-self:center;align-items:center;gap:10px 18px;padding:20px;display:grid}.pulse-calendar span:nth-child(2n){justify-self:end}.pulse-calendar .done{color:#385017;background:#dff6af;border-radius:8px;place-items:center;width:26px;height:26px;display:grid}.pulse-calendar .active{background:var(--violet);color:#fff;border-radius:8px;padding:7px 9px}.research-section{color:#fff;background:#0b1120;grid-template-columns:1.1fr .9fr;align-items:center;gap:100px;width:100%;max-width:none;padding:120px max(20px,50% - 590px);display:grid}.research-copy>p{color:#acb5c4;max-width:620px;margin:25px 0;font-size:16px;line-height:1.7}.research-copy ul{color:#dce3ed;gap:12px;margin:32px 0 0;padding:0;font-size:12px;list-style:none;display:grid}.research-copy li:before{content:"✓";width:20px;height:20px;color:var(--lime);background:#1b2639;border-radius:6px;place-items:center;margin-right:10px;display:inline-grid}.research-link{color:#fff;border-bottom:1px solid #657083;align-items:center;gap:9px;margin-top:28px;padding-bottom:4px;font-size:12px;font-weight:700;display:inline-flex}.research-card{background:#111a2b;border:1px solid #2c374a;border-radius:20px;padding:30px;box-shadow:0 26px 70px #00000040}.research-card>.feature-code{color:#9ea8b8;margin-bottom:28px;display:block}.data-row{font:550 11px var(--font-geist-mono),monospace;color:#aab4c3;border-bottom:1px solid #283245;justify-content:space-between;align-items:center;padding:14px 0;display:flex}.data-row b{color:var(--lime);font-size:15px}.privacy-note{color:#c9d1dd;background:#192438;border-radius:10px;margin-top:20px;padding:13px;font-size:10px}.privacy-note span{color:var(--lime);margin-right:7px}.final-cta{text-align:center;padding-block:140px}.final-cta h2{font-size:clamp(58px,8vw,104px)}.final-cta h2 em{color:#6f7786;font-family:Georgia,Times New Roman,serif;font-weight:500}.final-cta p{max-width:570px;color:var(--muted);margin:28px auto 32px;line-height:1.6}.site-footer{border-top:1px solid var(--line);color:#6c7480;grid-template-columns:1.1fr 1.4fr .7fr;align-items:center;gap:32px;width:min(1180px,100% - 40px);min-height:150px;margin:0 auto;padding:34px 0;font-size:11px;display:grid}.site-footer .brand{color:var(--ink)}.footer-identity p{max-width:330px;margin:12px 0 0;line-height:1.5}.site-footer nav{flex-wrap:wrap;justify-content:center;gap:12px 22px;display:flex}.site-footer nav a:hover{color:var(--ink)}.footer-status{text-align:right;justify-self:end;margin:0;line-height:1.65}.policy-page{background:var(--paper);min-height:100vh}.policy-topbar{border-bottom:1px solid #0b11201f;justify-content:space-between;align-items:center;width:min(1120px,100% - 40px);height:78px;margin:0 auto;display:flex}.policy-hero{grid-template-columns:1fr auto;align-items:end;gap:70px;width:min(1120px,100% - 40px);margin:0 auto;padding:88px 0 68px;display:grid}.policy-hero h1{max-width:850px;font-size:clamp(48px,6vw,78px)}.policy-hero>div>p{max-width:760px;color:var(--muted);margin:25px 0 0;font-size:17px;line-height:1.7}.policy-status{background:#fff;border:1px solid #d5dbd0;border-radius:14px;align-items:flex-start;gap:11px;min-width:245px;padding:16px;display:flex}.policy-status>span{color:#82bc24;font-size:10px}.policy-status b,.policy-status small{display:block}.policy-status b{font-size:10px}.policy-status small{color:#7d8578;margin-top:5px;font-size:9px}.policy-grid{grid-template-columns:250px minmax(0,740px);align-items:start;gap:90px;width:min(1120px,100% - 40px);margin:0 auto 110px;display:grid}.policy-index{background:#fff;border:1px solid #d9ded4;border-radius:17px;padding:20px;position:sticky;top:24px}.policy-index>span{color:#777f73;font:700 9px var(--font-geist-mono),monospace;letter-spacing:.12em;text-transform:uppercase}.policy-index nav{margin-top:15px;display:grid}.policy-index nav a{color:#596253;border-top:1px solid #e7eae4;justify-content:space-between;padding:11px 0;font-size:11px;font-weight:650;display:flex}.policy-index nav a:hover{color:var(--ink)}.policy-index>p{color:#7c8478;margin:18px 0 0;font-size:9px;line-height:1.55}.policy-index>p a,.policy-content a{color:#4c3fd6;text-underline-offset:3px;text-decoration:underline}.policy-content{min-width:0}.policy-callout{color:#fff;background:#0d1423;border-radius:17px;margin-bottom:40px;padding:25px}.policy-callout>span{color:var(--lime);font:700 9px var(--font-geist-mono),monospace;letter-spacing:.12em;text-transform:uppercase}.policy-callout p{color:#c1cad7;margin:12px 0 0;font-size:14px;line-height:1.7}.policy-section{border-top:1px solid #dce1d8;padding:34px 0}.policy-section h2{letter-spacing:-.035em;margin:0 0 18px;font-size:24px}.policy-section p,.policy-section li{color:#555f50;font-size:13px;line-height:1.75}.policy-section p{margin:0 0 15px}.policy-section ul{margin:8px 0 18px;padding-left:20px}.policy-section li+li{margin-top:8px}.policy-section ol{margin:8px 0 18px;padding-left:22px}.data-control{background:#fff;border:1px solid #d9ded4;border-radius:17px;grid-template-columns:1fr auto;align-items:center;gap:14px 26px;padding:24px;display:grid}.data-control b{font-size:14px}.data-control p{margin:7px 0 0;font-size:10px}.data-control .button{white-space:nowrap}.data-control .button:disabled{cursor:default;opacity:.72}.data-control-note{border-top:1px solid #e5e8e1;grid-column:1/-1;padding-top:12px}.contact-grid{grid-template-columns:1fr 1fr;gap:12px;margin-bottom:40px;display:grid}.contact-grid>a{min-height:190px;color:var(--ink);background:#fff;border:1px solid #d9ded4;border-radius:17px;flex-direction:column;align-items:flex-start;padding:24px;display:flex}.contact-grid>a:hover{border-color:#afa7ff;transform:translateY(-2px)}.contact-grid>a>span{color:var(--violet);align-self:flex-end}.contact-grid h2{letter-spacing:-.035em;margin:22px 0 8px;font-size:20px}.contact-grid p{color:#697266;margin:0;font-size:10px;line-height:1.55}.contact-grid b{margin-top:auto;padding-top:18px;font-size:9px}@keyframes rise{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@media (max-width:900px){.nav-links{display:none}.topbar{grid-template-columns:1fr auto}.hero{grid-template-columns:1fr;gap:55px;padding-top:58px}.hero-copy{text-align:center}.eyebrow,.hero-actions,.trust-row{justify-content:center}.hero-subtitle{margin-left:auto;margin-right:auto}.demo-shell{width:min(560px,100%);margin:0 auto 30px}.section-heading-row,.split-section,.research-section{grid-template-columns:1fr;gap:48px}.flow-grid,.bento-grid{grid-template-columns:repeat(2,1fr)}.bento-wide{grid-column:span 2}.research-section{padding-inline:max(20px,50% - 360px)}.site-footer{grid-template-columns:1fr 1.5fr}.footer-status{display:none}.policy-hero{grid-template-columns:1fr;gap:30px}.policy-status{width:fit-content}.policy-grid{grid-template-columns:210px minmax(0,1fr);gap:45px}}@media (max-width:560px){.topbar{width:min(100% - 28px,1180px);height:68px}.button-small{min-height:38px;padding-inline:13px}.hero{width:min(100% - 28px,1180px);min-height:auto;padding:48px 0 70px}h1{font-size:clamp(44px,14vw,62px)}.hero-subtitle{font-size:16px}.hero-actions{flex-direction:column;align-items:stretch;gap:18px}.text-link{align-self:center}.trust-row{flex-direction:column;align-items:center;margin-top:42px}.demo-shell{border-radius:19px;padding:18px}.problem-card{padding:18px}.math-problem{font-size:17px}.method-options{grid-template-columns:1fr}.signal-strip{text-align:center;flex-direction:column;padding-block:28px}.section{width:min(100% - 28px,1180px);padding:85px 0}.section h2{font-size:42px}.flow-grid,.bento-grid{grid-template-columns:1fr}.flow-card{min-height:205px}.flow-card h3{margin-top:35px}.bento-wide{grid-column:span 1;grid-template-columns:1fr}.research-section{width:100%;padding:85px 20px}.score-panel{padding:22px}.final-cta h2{font-size:55px}.final-cta{padding-block:100px}.site-footer{grid-template-columns:1fr;width:min(100% - 28px,1180px)}.site-footer nav{justify-content:flex-start}.policy-topbar,.policy-hero,.policy-grid{width:min(100% - 28px,1120px)}.policy-topbar{height:68px}.policy-topbar .button{padding-inline:11px}.policy-hero{padding:62px 0 48px}.policy-hero h1{font-size:47px}.policy-hero>div>p{font-size:15px}.policy-grid{grid-template-columns:1fr;gap:32px;margin-bottom:70px}.policy-index{position:static}.policy-index nav{grid-template-columns:1fr 1fr;column-gap:14px}.policy-content{min-width:0}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}.app-page{background:#f3f5ef;min-height:100vh}.app-sidebar{z-index:20;color:#dfe5ee;background:#0b1120;flex-direction:column;width:224px;padding:28px 18px 22px;display:flex;position:fixed;inset:0 auto 0 0}.app-brand{color:#fff;padding:0 10px 28px}.app-brand .brand-mark{background:var(--lime);color:var(--ink)}.app-sidebar nav{gap:5px;display:grid}.app-sidebar nav button{color:#98a3b4;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:10px;align-items:center;gap:12px;min-height:44px;padding:0 12px;font-size:12px;font-weight:620;display:flex}.app-sidebar nav button>span{color:#7f8b9e;background:#151f31;border-radius:7px;place-items:center;width:25px;height:25px;display:grid}.app-sidebar nav button:hover{color:#fff;background:#111b2c}.app-sidebar nav button.active{color:#fff;background:#1a2436}.app-sidebar nav button.active>span{background:var(--lime);color:var(--ink)}.sidebar-bottom{border-top:1px solid #263044;gap:20px;margin-top:auto;padding:18px 8px 0;display:grid}.privacy-mini{align-items:center;gap:9px;display:flex}.privacy-mini>span{color:var(--lime);font-size:9px}.privacy-mini b,.privacy-mini small{display:block}.privacy-mini b{font-size:10px}.privacy-mini small{color:#738096;margin-top:3px;font-size:9px}.sidebar-bottom>a{color:#7e899b;font-size:10px}.app-main{min-height:100vh;margin-left:224px;padding:0 clamp(28px,5vw,72px) 80px}.app-header{border-bottom:1px solid #dce1d7;justify-content:space-between;align-items:center;height:116px;display:flex}.app-header p{color:#778071;text-transform:uppercase;letter-spacing:.11em;margin:0 0 6px;font-size:10px;font-weight:650}.app-header h1{letter-spacing:-.04em;margin:0;font-size:24px;line-height:1.1}.mobile-section-label{display:none}.header-actions{align-items:center;gap:12px;display:flex}.prototype-badge{color:#697163;letter-spacing:.06em;text-transform:uppercase;background:#fafbf8;border:1px solid #d6dcd1;border-radius:999px;padding:8px 11px;font-size:9px;font-weight:700}.avatar{color:#342d85;cursor:pointer;background:#dcd8ff;border:0;border-radius:11px;width:38px;height:38px;font-size:10px;font-weight:780}.product-empty{background:#fff;border:1px solid #d8ddd4;border-radius:24px;flex-direction:column;justify-content:center;align-items:flex-start;min-height:430px;padding:clamp(34px,6vw,72px);display:flex;position:relative;overflow:hidden}.product-empty>span{color:#70796b;font:700 9px var(--font-geist-mono),monospace;letter-spacing:.12em;text-transform:uppercase}.product-empty h3{letter-spacing:-.055em;max-width:620px;margin:20px 0 10px;font-size:clamp(36px,5vw,62px);line-height:1}.product-empty p{color:#657060;max-width:610px;margin:0 0 28px;font-size:13px;line-height:1.65}.empty-orbit{color:#d7dcd3;border:1px solid #dfe4da;border-radius:50%;place-items:center;width:250px;height:250px;font-size:86px;font-weight:760;display:grid;position:absolute;top:-70px;right:-45px;box-shadow:0 0 0 42px #7e75ff09,0 0 0 84px #b4ee590a}.view-content{max-width:1220px;margin:0 auto;padding-top:46px;animation:.32s both rise}.narrow-view{max-width:850px}.today-hero{color:#fff;background:#0d1423;border-radius:24px;grid-template-columns:1fr auto;align-items:center;gap:50px;min-height:310px;padding:48px 52px;display:grid;position:relative;overflow:hidden}.today-hero:before{content:"";border:1px solid #3d4770;border-radius:50%;width:420px;height:420px;position:absolute;top:-180px;right:-130px;box-shadow:0 0 0 55px #8175ff0d,0 0 0 110px #78c7ff09}.today-copy{z-index:1;position:relative}.today-copy .section-kicker{color:#aab5c4;margin-bottom:16px}.today-copy h2{letter-spacing:-.055em;margin:0;font-size:clamp(38px,4vw,58px);line-height:1.02}.today-copy h2 em{color:#bdc5d1;font-family:Georgia,serif;font-weight:500}.today-copy p{color:#aeb8c7;max-width:600px;margin:18px 0 26px;font-size:14px;line-height:1.6}.session-ring{z-index:1;background:conic-gradient(var(--lime) 0 22%,#273248 22% 100%);border-radius:50%;place-items:center;width:148px;height:148px;display:grid;position:relative}.session-ring:before{content:"";background:#0d1423;border-radius:50%;position:absolute;inset:9px}.session-ring>div{text-align:center;position:relative}.session-ring b{letter-spacing:-.07em;font-size:46px;display:block}.session-ring span{color:#9eabba;text-transform:uppercase;letter-spacing:.1em;font-size:9px;font-weight:700}.focus-session{background:#fff;border:1px solid #d4dacd;border-radius:20px;margin-top:16px;padding:30px}.focus-progress{color:#6b7465;text-transform:uppercase;letter-spacing:.08em;justify-content:space-between;font-size:10px;font-weight:700;display:flex}.focus-track{background:#edf0e8;border-radius:10px;height:4px;margin:12px 0 26px;overflow:hidden}.focus-track i{background:linear-gradient(90deg,var(--violet),var(--blue));height:100%;display:block}.focus-task{align-items:flex-start;gap:20px;margin-bottom:24px;display:flex}.focus-index{width:54px;height:54px;color:var(--lime);font:700 13px var(--font-geist-mono),monospace;background:#0d1423;border-radius:15px;flex:0 0 54px;place-items:center;display:grid}.focus-task small{color:#777f73;text-transform:uppercase;font-size:9px;font-weight:700}.focus-task h3{letter-spacing:-.035em;margin:4px 0;font-size:22px}.focus-task p{color:var(--muted);margin:0;font-size:12px}.focus-actions{justify-content:space-between;gap:12px;display:flex}.session-complete{background:#e6f9bc;border:1px solid #cce997;border-radius:20px;grid-template-columns:auto 1fr auto;align-items:center;gap:20px;margin-top:16px;padding:28px;display:grid}.celebration-mark{width:52px;height:52px;color:var(--lime);background:#17230f;border-radius:15px;place-items:center;font-size:22px;display:grid}.session-complete small{font:700 9px var(--font-geist-mono),monospace;letter-spacing:.1em}.session-complete h3{letter-spacing:-.035em;margin:5px 0 3px;font-size:20px}.session-complete p{color:#4f6037;margin:0;font-size:11px}.dashboard-grid{grid-template-columns:1.25fr .75fr;gap:16px;margin-top:16px;display:grid}.dash-card{background:#fff;border:1px solid #d9ded4;border-radius:19px;padding:26px}.card-heading{justify-content:space-between;align-items:flex-start;gap:18px;display:flex}.card-label{color:#71796d;font:700 9px var(--font-geist-mono),monospace;letter-spacing:.11em}.card-heading h3{letter-spacing:-.03em;margin:6px 0 0;font-size:17px}.card-heading button{color:#626b5d;cursor:pointer;background:0 0;border:0;font-size:9px;font-weight:650}.signal-numbers{grid-template-columns:1fr 1fr;gap:30px;margin:32px 0 24px;display:grid}.signal-numbers b,.signal-numbers span{display:block}.signal-numbers b{letter-spacing:-.06em;font-size:38px}.signal-numbers span{color:#697266;margin:3px 0 10px;font-size:10px}.signal-numbers i{background:#edf0ea;border-radius:10px;height:7px;display:block;overflow:hidden}.signal-numbers em{border-radius:inherit;background:var(--violet);height:100%;display:block}.signal-numbers i.lime em{background:var(--lime-deep)}.card-insight{color:#56516d;background:#f3f1ff;border-radius:11px;margin:0;padding:14px;font-size:10px;line-height:1.5}.card-insight>span{color:var(--violet);margin-right:7px}.healthy-badge{color:#486020;text-transform:uppercase;background:#e8f8c7;border-radius:999px;padding:6px 8px;font-size:8px;font-weight:750}.week-dots{grid-template-columns:repeat(7,1fr);gap:8px;margin:28px 0 20px;display:grid}.week-dots div{color:#8b9287;justify-items:center;gap:8px;font-size:8px;display:grid}.week-dots i{background:#edf0ea;border-radius:8px;place-items:center;width:27px;height:27px;font-size:9px;font-style:normal;display:grid}.week-dots .done i{color:#344a15;background:#dff5b5}.week-dots .today i{border:1px solid var(--violet);color:var(--violet);background:#fff}.pulse-card>p{color:#737c6e;margin:0;font-size:10px;line-height:1.5}.clean-stat{align-items:flex-end;gap:12px;margin:30px 0 20px;display:flex}.clean-stat b{letter-spacing:-.06em;font-size:48px;line-height:1}.clean-stat span{color:#747d70;max-width:160px;font-size:9px;line-height:1.4}.queue-card>.card-heading>b{background:var(--lime);border-radius:9px;place-items:center;width:31px;height:31px;font-size:12px;display:grid}.queue-card>button{text-align:left;cursor:pointer;background:0 0;border:0;border-top:1px solid #e7eae4;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;width:100%;padding:13px 0;display:grid}.queue-card>button:first-of-type{margin-top:20px}.queue-card>button>span{color:#6b7467;background:#f0f2ed;border-radius:8px;place-items:center;width:27px;height:27px;font-size:9px;display:grid}.queue-card button b,.queue-card button small{display:block}.queue-card button b{font-size:10px}.queue-card button small{color:#899083;margin-top:3px;font-size:8px}.queue-card button em{color:#92998f;font-style:normal}.insight-card{background:var(--lime);border-color:#b4e94c;position:relative;overflow:hidden}.insight-orbit{border:1px solid #18230b2e;border-radius:50%;place-items:center;width:90px;height:90px;font-size:30px;font-weight:750;display:grid;position:absolute;top:34px;right:-8px;box-shadow:0 0 0 17px #ffffff29}.insight-card h3{letter-spacing:-.045em;max-width:270px;margin:38px 0 10px;font-size:23px;line-height:1.08}.insight-card p{color:#50612f;max-width:360px;margin:0;font-size:11px;line-height:1.55}.insight-card button{color:#263015;cursor:pointer;background:0 0;border:0;margin-top:25px;padding:0;font-size:9px;font-weight:750}.view-intro{margin:14px 0 42px}.view-intro .section-kicker{margin-bottom:16px}.view-intro h2{letter-spacing:-.055em;margin:0;font-size:clamp(42px,5vw,66px);line-height:1.02}.view-intro>p,.progress-intro>div>p{max-width:650px;color:var(--muted);margin:18px 0 0;font-size:14px;line-height:1.65}.work-card{background:#fff;border:1px solid #d7ddd2;border-radius:22px;padding:34px}.work-card-head{gap:15px;display:flex}.work-card-head>span{width:35px;height:35px;color:var(--lime);font:700 9px var(--font-geist-mono),monospace;background:#0c1422;border-radius:10px;flex:0 0 35px;place-items:center;display:grid}.work-card-head h3{letter-spacing:-.035em;margin:0;font-size:20px}.work-card-head p{color:#7b8377;margin:4px 0 0;font-size:10px}.problem-input-label{color:#697164;text-transform:uppercase;letter-spacing:.08em;margin-top:28px;font-size:9px;font-weight:750;display:block}.problem-input-label textarea{resize:vertical;width:100%;color:var(--ink);text-transform:none;letter-spacing:0;background:#fafbf8;border:1px solid #d9ded5;border-radius:13px;margin-top:8px;padding:18px;font:17px/1.55 Georgia,serif}.learning-fields{grid-template-columns:1fr 1fr;gap:12px;margin-top:16px;display:grid}.learning-fields label,.practice-answer{color:#697164;text-transform:uppercase;letter-spacing:.08em;font-size:9px;font-weight:750}.learning-fields .wide-field{grid-column:span 2}.learning-fields input,.practice-answer input{width:100%;min-height:47px;color:var(--ink);font:11px var(--font-geist-sans),sans-serif;text-transform:none;letter-spacing:0;background:#fafbf8;border:1px solid #d9ded5;border-radius:11px;margin-top:8px;padding:0 14px;display:block}.confidence-field{border:0;margin:24px 0;padding:0}.confidence-field legend{margin-bottom:11px;font-size:11px;font-weight:700}.confidence-field>div{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.confidence-field button{color:#6e766a;cursor:pointer;background:#fafbf8;border:1px solid #dce1d8;border-radius:10px;min-height:42px;font-size:10px;font-weight:650}.confidence-field button.selected{border-color:var(--violet);color:#312b74;background:#f1efff}.full-button{width:100%}.analysis-result{color:#fff;background:#0d1423;border-radius:17px;margin-top:24px;padding:24px;animation:.3s both rise}.analysis-top{color:#9ca7b7;font:700 9px var(--font-geist-mono),monospace;letter-spacing:.1em;justify-content:space-between;align-items:center;display:flex}.demo-mode{border:1px solid #364157;border-radius:999px;padding:5px 7px}.analysis-grid{background:#2a3548;border-radius:12px;grid-template-columns:repeat(3,1fr);gap:1px;margin:22px 0;display:grid;overflow:hidden}.analysis-grid>div{background:#172135;padding:16px}.analysis-grid small,.analysis-grid b{display:block}.analysis-grid small{color:#8f9aab;text-transform:uppercase;margin-bottom:7px;font-size:8px}.analysis-grid b{font-size:11px}.first-hint,.ai-ready{border-radius:12px;align-items:flex-start;gap:12px;padding:15px;display:flex}.first-hint{color:#1d2a11;background:#e7f9bd}.first-hint>span,.ai-ready>span{width:26px;height:26px;color:var(--lime);background:#1d2a11;border-radius:8px;flex:0 0 26px;place-items:center;font-size:9px;display:grid}.first-hint p,.ai-ready p{margin:0;font-size:10px;line-height:1.55}.ai-ready{color:#c5ceda;background:#19243a;margin-top:10px;position:relative}.light-ai{color:#596253;background:#edf0ea;margin-top:16px}.light-ai>span{color:#3c328c;background:#dcd8ff}.light-ai em{color:#7a8375}.saved-entry{color:#364b18;background:#e8f8c7;border:1px solid #cbe59b;border-radius:13px;grid-template-columns:auto 1fr auto;align-items:center;gap:13px;padding:18px;display:grid}.saved-entry>span{width:31px;height:31px;color:var(--lime);background:#14200e;border-radius:9px;place-items:center;display:grid}.saved-entry b{font-size:11px}.saved-entry p{margin:4px 0 0;font-size:9px}.saved-entry button{color:#314416;cursor:pointer;background:0 0;border:0;font-size:9px;font-weight:750}.ai-ready>span{color:#a79fff;background:#2a3550}.ai-ready em{color:#7f8b9e;font:650 8px var(--font-geist-mono),monospace;margin-left:auto}.learn-layout{grid-template-columns:.75fr 1.25fr;gap:16px;display:grid}.method-list{align-content:start;gap:8px;display:grid}.method-list>button{text-align:left;cursor:pointer;background:#fff;border:1px solid #dce1d8;border-radius:14px;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;min-height:78px;padding:15px;display:grid}.method-list>button.active{border-color:var(--violet);background:#f0eeff}.method-glyph{background:#eff1ec;border-radius:10px;place-items:center;width:36px;height:36px;display:grid}.method-list h3{margin:0;font-size:12px}.method-list p{color:#81897e;margin:4px 0 0;font-size:8px}.method-list>button>b{color:#686f65;font-size:10px}.method-detail{background:#fff;border:1px solid #d8ddd4;border-radius:19px;padding:30px}.method-detail-top{justify-content:space-between;align-items:flex-start;display:flex}.method-detail-top h3{letter-spacing:-.045em;margin:7px 0 0;font-size:28px}.mastery-pill{color:#486221;text-transform:uppercase;background:#e8f8c8;border-radius:999px;padding:7px 9px;font-size:8px;font-weight:700}.definition-block{color:#fff;background:#0e1525;border-radius:14px;margin:28px 0 14px;padding:22px}.definition-block small,.method-map small{color:#919cad;font:700 8px var(--font-geist-mono),monospace;letter-spacing:.1em}.definition-block p{margin:10px 0 0;font:18px/1.5 Georgia,serif}.method-map{border:1px solid #e0e4dc;border-radius:14px;padding:20px}.method-map>div{justify-content:space-between;align-items:center;gap:9px;margin-top:15px;display:flex}.method-map span{color:#5f685a;text-align:center;background:#f0f2ed;border-radius:9px;padding:10px;font-size:9px}.method-map .highlight{background:var(--lime);color:#293515;font-weight:720}.method-map b{color:#8c9487}.method-stats{background:#e1e5de;border:1px solid #e1e5de;border-radius:13px;grid-template-columns:repeat(3,1fr);gap:1px;margin:14px 0;display:grid;overflow:hidden}.method-stats>div{background:#fafbf8;padding:15px}.method-stats b,.method-stats span{display:block}.method-stats b{letter-spacing:-.04em;font-size:20px}.method-stats span{color:#7b8377;margin-top:3px;font-size:8px}.prerequisite-box{color:#5d543d;background:#fff7df;border-radius:12px;gap:12px;padding:15px;display:flex}.prerequisite-box>span{color:#a57b19}.prerequisite-box p{margin:0;font-size:9px;line-height:1.5}.practice-card{background:#fff;border:1px solid #d8ddd4;border-radius:21px;padding:34px}.practice-meta{color:#737c70;font:700 9px var(--font-geist-mono),monospace;letter-spacing:.08em;justify-content:space-between;display:flex}.practice-problem{color:#fff;background:#0d1423;border-radius:16px;margin:28px 0;padding:28px;font:22px/1.55 Georgia,serif}.practice-problem mark{color:var(--lime);background:0 0}.practice-card fieldset{border:0;margin:0 0 18px;padding:0}.practice-card legend{margin-bottom:12px;font-size:11px;font-weight:700}.practice-meta button{color:#6258d8;font:700 8px var(--font-geist-mono),monospace;cursor:pointer;background:0 0;border:0;padding:0}.practice-answer{margin-bottom:18px;display:block}.practice-card fieldset button{color:#5c6559;cursor:pointer;background:#fafbf8;border:1px solid #dde1da;border-radius:10px;justify-content:space-between;align-items:center;width:100%;min-height:46px;margin-bottom:7px;padding:0 14px;font-size:10px;font-weight:650;display:flex}.practice-card fieldset button.selected{border-color:var(--violet);color:#302b71;background:#f0eeff}.practice-card fieldset i{font-style:normal}.practice-feedback{border-radius:13px;align-items:flex-start;gap:13px;margin-top:18px;padding:18px;display:flex}.practice-feedback.correct{color:#364b18;background:#e8f8c7}.practice-feedback.retry{color:#5a4b2b;background:#fff4dc}.practice-feedback>span{width:29px;height:29px;color:var(--lime);background:#14200e;border-radius:9px;flex:0 0 29px;place-items:center;display:grid}.practice-feedback h3{margin:0 0 5px;font-size:13px}.practice-feedback p{margin:0;font-size:10px;line-height:1.55}.quiet-note{color:#868e82;text-align:center;font-size:9px}.replay-hero{color:#fff;background:#0d1423;border-radius:22px;grid-template-columns:auto 1fr auto;align-items:center;gap:40px;padding:36px;display:grid}.replay-big{letter-spacing:-.07em;color:var(--lime);font-size:72px;font-weight:760}.replay-hero>div>p{color:#9da8b8;text-transform:uppercase;margin:-5px 0 0;font-size:9px}.replay-hero ul{margin:0;padding:0;list-style:none}.replay-hero li{color:#b8c1cf;border-bottom:1px solid #293448;grid-template-columns:auto 1fr auto;gap:10px;padding:10px 0;font-size:9px;display:grid}.replay-hero li>span{color:var(--lime)}.replay-hero li>b{color:#fff}.review-grid{grid-template-columns:1fr 1fr;gap:15px;margin-top:15px;display:grid}.review-grid article{background:#fff;border:1px solid #d9ded4;border-radius:18px;padding:26px}.review-grid h3{letter-spacing:-.045em;margin:26px 0 8px;font-size:24px}.review-grid p{color:var(--muted);margin:0 0 20px;font-size:11px;line-height:1.55}.review-grid b{font-size:9px}.replay-active{max-width:800px;margin:0 auto}.replay-warning{color:#656e60;background:#f1f3ed;border-radius:11px;gap:12px;margin-bottom:20px;padding:14px;font-size:10px;display:flex}.replay-warning p{margin:0}.progress-intro{justify-content:space-between;align-items:flex-end;gap:30px;display:flex}.progress-grid{grid-template-columns:1.2fr .8fr;gap:15px;display:grid}.progress-card{background:#fff;border:1px solid #d9ded4;border-radius:19px;padding:26px}.progress-card.wide{grid-column:span 2}.progress-card .card-heading h3{font-size:20px}.line-chart{grid-template-columns:35px 1fr;gap:8px;height:210px;margin-top:26px;display:grid}.chart-labels{color:#8a9186;flex-direction:column;justify-content:space-between;padding-bottom:18px;font-size:8px;display:flex}.chart-area{margin-bottom:18px;position:relative}.gridline{background:#e7eae4;height:1px;position:absolute;left:0;right:0}.gridline.a{top:0}.gridline.b{top:50%}.gridline.c{bottom:0}.trend span{border-radius:50%;width:12px;height:12px;position:absolute;transform:translate(-50%,50%);box-shadow:0 0 0 4px #fff}.trend.recognition span{background:var(--violet)}.trend.execution span{background:var(--lime-deep)}.trend:before{content:"";transform-origin:0;border-radius:10px;height:3px;position:absolute;left:3%;right:4%}.trend.recognition:before{background:linear-gradient(11deg,var(--violet),#aea8ff);bottom:18%;transform:rotate(-8deg)}.trend.execution:before{background:linear-gradient(4deg,var(--lime-deep),var(--lime));bottom:70%;transform:rotate(-3deg)}.chart-legend{color:#737b70;gap:30px;margin-left:43px;font-size:9px;display:flex}.chart-legend>span{align-items:center;gap:7px;display:flex}.chart-legend i{border-radius:50%;width:7px;height:7px}.violet-dot{background:var(--violet)}.lime-dot{background:var(--lime-deep)}.chart-legend b{color:var(--ink)}.progress-card>h3{letter-spacing:-.04em;margin:9px 0 24px;font-size:20px}.dna-chart{gap:13px;display:grid}.dna-chart>div{color:#646d60;justify-content:space-between;padding-bottom:9px;font-size:9px;display:flex;position:relative}.dna-chart>div:after{content:"";width:var(--size);background:linear-gradient(90deg,var(--violet),#bbb5ff);border-radius:10px;height:4px;position:absolute;bottom:0;left:0}.dna-chart b{color:var(--ink)}.confidence-stats{grid-template-columns:1fr 1fr;gap:9px;display:grid}.confidence-stats>div{background:#f1f3ee;border-radius:12px;padding:16px}.confidence-stats b,.confidence-stats span{display:block}.confidence-stats b{letter-spacing:-.05em;font-size:25px}.confidence-stats span{color:#747d70;margin-top:5px;font-size:8px;line-height:1.35}.progress-card>p{color:#747d70;font-size:9px;line-height:1.5}.insight-wide{background:#e8f8c7;border-color:#cce89a;grid-column:span 2;grid-template-columns:auto 1fr auto;align-items:center;gap:18px;display:grid}.insight-wide>span{width:40px;height:40px;color:var(--lime);background:#17230f;border-radius:12px;place-items:center;display:grid}.insight-wide small{font:700 8px var(--font-geist-mono),monospace;letter-spacing:.09em}.insight-wide h3{margin:6px 0 3px;font-size:16px}.insight-wide p{color:#52633a;margin:0}.insight-wide button{cursor:pointer;background:0 0;border:0;font-size:9px;font-weight:750}.weekly-card>div{color:#737b70;border-top:1px solid #e5e8e1;justify-content:space-between;padding:11px 0;font-size:9px;display:flex}.weekly-card>div b{color:var(--ink)}.progress-signals{margin-bottom:0}.actual-counts{gap:10px;display:grid}.actual-counts>div{color:#737b70;text-transform:capitalize;border-top:1px solid #e5e8e1;justify-content:space-between;align-items:center;padding:12px 0;font-size:9px;display:flex}.actual-counts b{color:var(--ink);font-size:18px}.export-privacy{color:#7a8376;text-align:center;margin-top:17px;font-size:9px}.app-policy-links{color:#7a8376;border-top:1px solid #dce1d7;flex-wrap:wrap;gap:8px 18px;max-width:1220px;margin:42px auto 0;padding-top:20px;font-size:9px;display:flex}.app-policy-links span{text-transform:uppercase;letter-spacing:.08em;margin-right:auto;font-weight:700}.app-policy-links a{color:#666f62}.app-policy-links a:hover{color:var(--violet)}.mobile-nav{display:none}@media (max-width:1000px){.app-sidebar{width:190px}.app-main{margin-left:190px;padding-inline:28px}.today-hero{padding:38px}.dashboard-grid,.progress-grid{grid-template-columns:1fr}.progress-card.wide,.insight-wide{grid-column:span 1}.learn-layout{grid-template-columns:1fr}.method-list{grid-template-columns:repeat(3,1fr)}.method-list>button{grid-template-columns:auto 1fr}.method-list>button>b{display:none}.replay-hero{grid-template-columns:auto 1fr}.replay-hero>.button{grid-column:span 2}.analysis-grid{grid-template-columns:1fr}}@media (max-width:720px){.app-sidebar{display:none}.app-main{margin-left:0;padding:0 16px 95px}.app-header{height:88px}.app-header p{display:none}.app-header h1{font-size:19px}.mobile-section-label{color:#777f73;text-transform:uppercase;letter-spacing:.1em;margin-bottom:5px;font-size:8px;font-weight:700;display:block}.prototype-badge{display:none}.view-content{padding-top:28px}.mobile-nav{z-index:30;background:#0d1423;border:1px solid #303b4e;border-radius:16px;grid-template-columns:repeat(6,1fr);padding:7px;display:grid;position:fixed;bottom:10px;left:10px;right:10px;box-shadow:0 12px 35px #090f1a40}.mobile-nav button{color:#7f8b9c;background:0 0;border:0;border-radius:9px;justify-items:center;gap:3px;padding:5px 1px;display:grid}.mobile-nav button>span{font-size:14px}.mobile-nav small{font-size:7px}.mobile-nav button.active{color:var(--lime);background:#202b3e}.today-hero{grid-template-columns:1fr;gap:28px;padding:30px}.session-ring{width:105px;height:105px}.session-ring b{font-size:33px}.dashboard-grid{grid-template-columns:1fr}.session-complete{grid-template-columns:auto 1fr}.session-complete>.button{grid-column:span 2}.view-intro h2{font-size:43px}.work-card,.practice-card{padding:22px}.confidence-field>div,.learn-layout{grid-template-columns:1fr}.method-list{display:flex;overflow-x:auto}.method-list>button{min-width:215px}.method-map>div{flex-direction:column}.method-map b{transform:rotate(90deg)}.replay-hero{grid-template-columns:1fr}.replay-hero>.button{grid-column:span 1}.review-grid{grid-template-columns:1fr}.progress-intro{flex-direction:column;align-items:flex-start}.progress-intro>.button{width:100%}.insight-wide{grid-template-columns:auto 1fr}.insight-wide>button{grid-column:span 2}.chart-legend{flex-direction:column;gap:7px;margin-left:0}}@media (max-width:560px){.data-control{grid-template-columns:1fr}.data-control .button{width:100%}.data-control-note{grid-column:1}.contact-grid{grid-template-columns:1fr}.contact-grid>a{min-height:165px}.app-policy-links span{width:100%;margin-right:0}.learning-fields{grid-template-columns:1fr}.learning-fields .wide-field{grid-column:span 1}.saved-entry{grid-template-columns:auto 1fr}.saved-entry button{grid-column:span 2}.focus-actions{flex-direction:column}.focus-actions .button{width:100%}.empty-orbit{width:170px;height:170px;font-size:58px}}.diagnostic-preview{min-height:100vh;padding-bottom:90px}.diagnostic-topbar{border-bottom:1px solid #dce1d7;justify-content:space-between;align-items:center;width:min(1180px,100% - 40px);height:82px;margin:0 auto;display:flex}.diagnostic-topbar>span{color:#71796d;font:700 11px var(--font-geist-mono),monospace;letter-spacing:.08em;text-transform:uppercase}.diagnostic-shell{width:min(1120px,100% - 40px);margin:0 auto;padding-top:64px}.diagnostic-intro{max-width:850px}.diagnostic-intro>span,.diagnostic-result>div>span{color:#6258d8;font:750 11px var(--font-geist-mono),monospace;letter-spacing:.1em;text-transform:uppercase}.diagnostic-intro h1{letter-spacing:-.065em;margin:18px 0;font-size:clamp(48px,7vw,82px);line-height:.96}.diagnostic-intro h1 em{color:#686f65;font-family:Georgia,serif;font-weight:500}.diagnostic-intro p{color:#5f685a;max-width:720px;margin:0;font-size:17px;line-height:1.65}.diagnostic-form{background:#fff;border:1px solid #d7ddd2;border-radius:22px;max-width:850px;margin-top:42px;padding:32px}.diagnostic-form>label{color:#596253;margin-bottom:22px;font-size:14px;font-weight:750;display:block}.diagnostic-form textarea{resize:vertical;color:#0d1423;width:100%;font:16px/1.55 var(--font-geist-sans),sans-serif;background:#f8faf6;border:1px solid #d7ddd2;border-radius:12px;margin-top:9px;padding:16px}.diagnostic-form fieldset{border:0;margin:0 0 22px;padding:0}.diagnostic-form legend{color:#596253;margin-bottom:10px;font-size:14px;font-weight:750}.diagnostic-form fieldset>div{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.diagnostic-form fieldset button{color:#626b5d;cursor:pointer;background:#f8faf6;border:1px solid #d7ddd2;border-radius:10px;min-height:46px;font-size:14px;font-weight:650}.diagnostic-form fieldset button.selected{color:#312b74;background:#efedff;border-color:#7166e7}.diagnostic-result{color:#fff;background:#0d1423;border-radius:22px;margin-top:20px;padding:32px;animation:.3s both rise}.diagnostic-result h2{letter-spacing:-.045em;margin:9px 0;font-size:36px}.diagnostic-result>div>p{color:#b9c2cf;max-width:750px;font-size:16px;line-height:1.6}.diagnostic-cards{grid-template-columns:repeat(3,1fr);gap:10px;margin-top:25px;display:grid}.diagnostic-cards article{background:#172135;border:1px solid #303b4f;border-radius:14px;padding:20px}.diagnostic-cards small{color:#baf05c;font:750 11px var(--font-geist-mono),monospace;letter-spacing:.1em}.diagnostic-cards p{color:#e2e7ee;margin:10px 0 0;font-size:14px;line-height:1.55}@media (max-width:720px){.diagnostic-shell{padding-top:40px}.diagnostic-intro h1{font-size:52px}.diagnostic-form,.diagnostic-result{padding:22px}.diagnostic-cards,.diagnostic-form fieldset>div{grid-template-columns:1fr}.diagnostic-topbar>span{display:none}}.learning-app{color:#0d1423;background:#f2f5ef;min-height:100vh}.learning-sidebar{z-index:30;color:#fff;background:#0a1120;flex-direction:column;width:236px;padding:28px 18px 22px;display:flex;position:fixed;inset:0 auto 0 0}.learning-sidebar .app-brand{color:#fff;padding:0 10px 30px}.learning-sidebar nav{gap:6px;display:grid}.learning-sidebar nav button{color:#9da8b8;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:11px;align-items:center;gap:12px;min-height:46px;padding:0 12px;font-size:15px;font-weight:650;display:flex}.learning-sidebar nav button>span{color:#8490a3;background:#151f31;border-radius:8px;place-items:center;width:27px;height:27px;font-size:14px;display:grid}.learning-sidebar nav button:hover{color:#fff;background:#111b2c}.learning-sidebar nav button.active{color:#fff;background:#1a2538}.learning-sidebar nav button.active>span{color:#17230f;background:#bcf25c}.engine-status{border-top:1px solid #273247;align-items:flex-start;gap:10px;margin-top:auto;padding:18px 8px;display:flex}.engine-status>i{background:#bcf25c;border-radius:50%;flex:0 0 8px;width:8px;height:8px;margin-top:5px;box-shadow:0 0 0 5px #bcf25c17}.engine-status b,.engine-status small{display:block}.engine-status b{font-size:13px}.engine-status small{color:#7f8da2;margin-top:5px;font-size:12px;line-height:1.45}.learning-sidebar-links{flex-wrap:wrap;gap:8px 14px;padding:4px 8px 0;display:flex}.learning-sidebar-links a{color:#8190a6;font-size:12px}.learning-sidebar-links a:hover{color:#fff}.learning-main{min-height:100vh;margin-left:236px;padding:0 clamp(26px,4.5vw,70px) 72px}.learning-header{border-bottom:1px solid #d8ded3;justify-content:space-between;align-items:center;gap:24px;min-height:96px;display:flex}.learning-header>div:first-child>span{color:#737d70;letter-spacing:.1em;text-transform:uppercase;font-size:12px;font-weight:750}.learning-header h1{letter-spacing:-.04em;margin:5px 0 0;font-size:26px;line-height:1.1}.case-switcher{align-items:center;gap:14px;display:flex}.case-switcher label{color:#717a6d;font-size:12px;font-weight:700}.case-switcher select{color:#27301f;background:#fafbf8;border:1px solid #d5dbd0;border-radius:9px;min-width:210px;margin-top:5px;padding:8px 34px 8px 10px;font-size:13px;display:block}.private-pill{color:#62705b;white-space:nowrap;background:#fafbf8;border:1px solid #d5dbd0;border-radius:999px;padding:9px 11px;font-size:12px}.private-pill:first-letter{color:#73a91f}.account-chip{color:#34402e;background:#fff;border:1px solid #d5dbd0;border-radius:999px;align-items:center;gap:8px;min-height:39px;padding:4px 9px 4px 5px;display:flex}.account-chip>span{color:#bcf25c;background:#0d1423;border-radius:50%;place-items:center;width:28px;height:28px;font-size:12px;font-weight:800;display:grid}.account-chip>b{text-overflow:ellipsis;white-space:nowrap;max-width:105px;font-size:12px;overflow:hidden}.learning-view{max-width:1220px;margin:0 auto;padding-top:44px;animation:.3s both rise}.learning-kicker{color:#6258d8;font:750 12px var(--font-geist-mono),monospace;letter-spacing:.1em;text-transform:uppercase}.diagnose-view{grid-template-columns:minmax(310px,.82fr) minmax(480px,1.18fr);align-items:start;gap:clamp(36px,6vw,82px);display:grid}.diagnose-copy{padding-top:24px;position:sticky;top:36px}.diagnose-copy h2,.view-title h2{letter-spacing:-.06em;margin:18px 0;font-size:clamp(45px,5vw,68px);line-height:.98}.diagnose-copy h2 em,.view-title h2 em{color:#646d60;font-family:Georgia,serif;font-weight:500}.diagnose-copy>p,.view-title>p{color:#5f695a;max-width:570px;font-size:16px;line-height:1.7}.scope-row{flex-wrap:wrap;gap:8px;margin-top:28px;display:flex}.scope-row span{color:#616b5c;background:#f9faf7;border:1px solid #d5dbd0;border-radius:999px;padding:8px 10px;font-size:12px;font-weight:700}.intake-card{background:#fff;border:1px solid #d6dcd1;border-radius:23px;padding:32px;box-shadow:0 20px 55px #1921140f}.intake-step{align-items:center;gap:12px;margin:4px 0 10px;display:flex}.intake-step:not(:first-child){margin-top:24px}.intake-step>span{color:#bcf25c;width:34px;height:34px;font:750 12px var(--font-geist-mono),monospace;background:#0d1423;border-radius:10px;flex:0 0 34px;place-items:center;display:grid}.intake-step b,.intake-step small{display:block}.intake-step b{font-size:15px}.intake-step small{color:#7b8577;margin-top:3px;font-size:12px}.intake-card textarea{resize:vertical;color:#111827;width:100%;font:16px/1.55 var(--font-geist-sans),sans-serif;background:#f8faf6;border:1px solid #d6dcd1;border-radius:12px;padding:16px}.intake-card textarea:focus,.optional-answer input:focus,.level-answer input:focus{border-color:#7166e7;outline:3px solid #7166e726}.optional-answer{background:#fbfcfa;border:1px solid #e0e4dc;border-radius:11px;margin:18px 0;padding:14px}.optional-answer summary{color:#626c5e;cursor:pointer;font-size:14px;font-weight:700}.optional-answer input{color:#111827;background:#fff;border:1px solid #d6dcd1;border-radius:9px;width:100%;min-height:44px;margin-top:12px;padding:0 12px;font-size:15px}.intake-confidence{border:0;margin:20px 0;padding:0}.intake-confidence legend{margin-bottom:10px;font-size:14px;font-weight:750}.intake-confidence>div{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.intake-confidence button{color:#5f695a;cursor:pointer;background:#f8faf6;border:1px solid #d9ded4;border-radius:10px;min-height:45px;font-size:14px;font-weight:650}.intake-confidence button.selected{color:#322b7c;background:#efedff;border-color:#7166e7}.intake-submit{width:100%}.intake-privacy{color:#788274;text-align:center;margin:14px 0 0;font-size:12px;line-height:1.55}.workspace-empty{background:#fff;border:1px solid #d6dcd1;border-radius:26px;flex-direction:column;justify-content:center;align-items:flex-start;min-height:520px;padding:clamp(34px,7vw,82px);display:flex;position:relative;overflow:hidden}.workspace-empty>span{color:#6258d8;font:750 12px var(--font-geist-mono),monospace;letter-spacing:.1em}.workspace-empty h2{letter-spacing:-.06em;max-width:660px;margin:20px 0 12px;font-size:clamp(44px,6vw,74px);line-height:.98}.workspace-empty p{color:#64705f;max-width:590px;margin:0 0 28px;font-size:16px;line-height:1.65}.empty-lens{color:#d8ddd4;border:1px solid #d9ded5;border-radius:50%;place-items:center;width:310px;height:310px;font-size:96px;font-weight:780;display:grid;position:absolute;top:-100px;right:-55px;box-shadow:0 0 0 55px #7166e709,0 0 0 110px #bcf25c0a}.today-focus{color:#fff;background:#0d1423;border-radius:25px;grid-template-columns:1fr auto;align-items:center;gap:50px;min-height:330px;padding:48px;display:grid}.today-focus h2{letter-spacing:-.055em;margin:16px 0 10px;font-size:clamp(42px,5vw,64px)}.today-focus p{color:#aeb8c6;max-width:690px;margin:0 0 25px;font-size:16px;line-height:1.6}.mastery-dial{text-align:center;border:9px solid #263146;border-top-color:#bcf25c;border-radius:50%;align-content:center;place-items:center;width:150px;height:150px;display:grid}.mastery-dial b{font-size:45px;line-height:1}.mastery-dial span{color:#98a5b7;text-transform:uppercase;margin-top:7px;font-size:12px;line-height:1.3}.today-real-grid{grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px;display:grid}.today-real-grid article{background:#fff;border:1px solid #d8ded3;border-radius:18px;padding:25px}.today-real-grid span,.recent-cases>div>span,.lesson-fact small,.lesson-rule small,.worked-steps>small,.prereq-card>span,.progress-detail-grid>section>span{color:#737c70;font:750 12px var(--font-geist-mono),monospace;letter-spacing:.08em}.today-real-grid b{letter-spacing:-.055em;margin:20px 0 5px;font-size:40px;display:block}.today-real-grid p{color:#707b6c;margin:0;font-size:13px;line-height:1.5}.recent-cases{background:#fff;border:1px solid #d8ded3;border-radius:18px;margin-top:14px;padding:25px}.recent-cases>div{justify-content:space-between;align-items:center;margin-bottom:14px;display:flex}.recent-cases>div>button{color:#584dc8;cursor:pointer;background:0 0;border:0;font-size:13px;font-weight:750}.recent-cases>button{text-align:left;cursor:pointer;background:0 0;border:0;border-top:1px solid #e4e8e1;grid-template-columns:auto 1fr auto;align-items:center;gap:13px;width:100%;min-height:68px;padding:10px 0;display:grid}.subject-dot{background:#7166e7;border-radius:4px;width:12px;height:12px}.subject-dot.geometry{background:#1fa7bd}.subject-dot.probability{background:#78ad24}.subject-dot.statistics{background:#e59535}.recent-cases b,.recent-cases small{display:block}.recent-cases b{font-size:15px}.recent-cases small{color:#7d867a;margin-top:4px;font-size:12px}.recent-cases em{color:#7b8477;font-style:normal}.lesson-hero{color:#fff;background:#0d1423;border-radius:22px;justify-content:space-between;align-items:flex-end;gap:30px;padding:38px;display:flex}.confidence-pill{color:#344a15;text-transform:capitalize;background:#dff4b8;border-radius:999px;padding:7px 9px;font-size:12px;font-weight:750;display:inline-flex}.confidence-pill.medium{color:#6d5318;background:#fff0c6}.confidence-pill.low{color:#7b3320;background:#ffe2d9}.lesson-hero .learning-kicker{color:#a69eff;margin-top:24px;display:block}.lesson-hero h2{letter-spacing:-.06em;margin:8px 0;font-size:clamp(42px,5vw,65px)}.lesson-hero p{color:#aeb8c7;max-width:720px;margin:0;font-size:16px;line-height:1.6}.low-confidence-note{color:#6f3b2b;background:#fff0e9;border:1px solid #efc5b6;border-radius:13px;margin-top:14px;padding:17px 20px;font-size:14px;line-height:1.55}.thinking-compare{grid-template-columns:1fr auto 1fr;align-items:stretch;gap:14px;margin-top:14px;display:grid}.thinking-compare article:not(.compare-arrow){background:#fff;border:1px solid #d8ded3;border-radius:17px;padding:24px}.thinking-compare span{color:#6e776b;font:750 12px var(--font-geist-mono),monospace;letter-spacing:.08em}.thinking-compare p{color:#465141;margin:13px 0 0;font-size:15px;line-height:1.6}.compare-arrow{color:#7166e7;place-items:center;font-size:22px;display:grid}.lesson-grid{grid-template-columns:minmax(0,1fr) 250px;gap:14px;margin-top:14px;display:grid}.lesson-main-card,.mastery-rail,.prereq-card{background:#fff;border:1px solid #d8ded3;border-radius:18px}.lesson-main-card{padding:30px}.lesson-fact{background:#f1f3ee;border-radius:14px;gap:16px;padding:20px;display:flex}.lesson-fact+.lesson-fact{margin-top:10px}.lesson-fact.clue{background:#eeecff}.lesson-fact>span{color:#bcf25c;width:34px;height:34px;font:750 12px var(--font-geist-mono),monospace;background:#0d1423;border-radius:10px;flex:0 0 34px;place-items:center;display:grid}.lesson-fact p{color:#384334;margin:7px 0 0;font-size:16px;line-height:1.55}.lesson-rule{color:#fff;background:#0d1423;border-radius:14px;margin-top:18px;padding:24px}.lesson-rule small{color:#bcf25c}.lesson-rule p{margin:12px 0 0;font:21px/1.55 Georgia,serif}.worked-steps{margin-top:24px}.worked-steps>div{border-bottom:1px solid #e4e8e1;grid-template-columns:auto 1fr;align-items:center;gap:13px;padding:13px 0;display:grid}.worked-steps>div>span{color:#5e685a;background:#eef1eb;border-radius:8px;place-items:center;width:28px;height:28px;font-size:12px;font-weight:750;display:grid}.worked-steps p{color:#4e5949;margin:0;font-size:15px}.trap-note{color:#654e20;background:#fff2d7;border-radius:12px;margin-top:18px;padding:17px}.trap-note b{font-size:14px}.trap-note p{margin:5px 0 0;font-size:14px;line-height:1.5}.mastery-rail{margin:0;padding:12px;list-style:none}.mastery-rail li{position:relative}.mastery-rail li:not(:last-child):after{content:"";background:#dfe4db;width:2px;position:absolute;top:42px;bottom:-4px;left:20px}.mastery-rail li.complete:not(:last-child):after{background:#9ed044}.mastery-rail button{text-align:left;cursor:pointer;background:0 0;border:0;border-radius:10px;align-items:center;gap:11px;width:100%;min-height:56px;padding:7px 8px;display:flex}.mastery-rail button:disabled{cursor:default}.mastery-rail button:hover:not(:disabled),.mastery-rail li.active button{background:#f1efff}.mastery-rail button>span{z-index:1;color:#7a8376;background:#edf0ea;border-radius:8px;flex:0 0 26px;place-items:center;width:26px;height:26px;font-size:12px;font-weight:750;display:grid;position:relative}.mastery-rail li.complete button>span{color:#21300f;background:#bcf25c}.mastery-rail li.active button>span{color:#fff;background:#7166e7}.mastery-rail b,.mastery-rail small{display:block}.mastery-rail b{color:#364032;font-size:14px}.mastery-rail small{color:#899185;margin-top:2px;font-size:12px}.prereq-card{margin-top:12px;padding:19px}.prereq-card p{color:#5b6656;margin:12px 0 0;font-size:13px}.micro-lesson{color:#fff;background:#0d1423;border:1px solid #273349;border-radius:20px;grid-template-columns:1fr 220px;margin-top:14px;display:grid;overflow:hidden}.micro-screen{min-height:290px;padding:34px;position:relative;overflow:hidden}.micro-screen:after{content:"";border:1px solid #344058;border-radius:50%;width:330px;height:330px;position:absolute;bottom:-160px;right:-90px;box-shadow:0 0 0 45px #7166e70d,0 0 0 90px #bcf25c06}.micro-progress{background:#283349;border-radius:10px;height:4px;overflow:hidden}.micro-progress i{background:linear-gradient(90deg,#7166e7,#bcf25c);height:100%;transition:width .35s;display:block}.micro-screen>span{color:#9da8b8;font:750 12px var(--font-geist-mono),monospace;letter-spacing:.08em;margin-top:25px;display:block}.micro-screen h3{z-index:1;letter-spacing:-.05em;max-width:680px;margin:18px 0;font-size:clamp(30px,4vw,48px);line-height:1.05;position:relative}.micro-visual{z-index:1;align-items:center;gap:14px;margin-top:34px;display:flex;position:relative}.micro-visual>span{color:#18240d;background:#bcf25c;border-radius:13px;place-items:center;width:45px;height:45px;font-weight:800;display:grid}.micro-visual>i{background:linear-gradient(90deg,#7166e7,#bcf25c);width:100px;height:2px}.micro-visual>b{color:#bdc7d5;text-transform:uppercase;letter-spacing:.08em;font-size:13px}.micro-controls{border-left:1px solid #29354a;flex-direction:column;justify-content:center;gap:10px;padding:22px;display:flex}.micro-controls button{color:#c6cfdb;cursor:pointer;background:#182338;border:1px solid #354158;border-radius:10px;min-height:43px;font-size:13px;font-weight:700}.micro-controls button:disabled{opacity:.35;cursor:default}.micro-controls .play-control{color:#17230f;background:#bcf25c;border-color:#bcf25c}.practice-layout{grid-template-columns:250px minmax(0,760px);justify-content:center;align-items:start;gap:18px;display:grid}.practice-layout>aside{position:sticky;top:25px}.level-stage{background:#fff;border:1px solid #d8ded3;border-radius:22px;padding:32px}.level-stage-top{justify-content:space-between;align-items:flex-start;gap:20px;display:flex}.level-stage-top span{color:#6258d8;font:750 12px var(--font-geist-mono),monospace;letter-spacing:.09em;text-transform:uppercase}.level-stage-top h2{letter-spacing:-.045em;margin:8px 0 0;font-size:35px}.level-stage-top>b{color:#687363;background:#edf0ea;border-radius:999px;padding:8px 10px;font-size:12px}.level-progress{background:#e8ece5;border-radius:10px;height:5px;margin:20px 0 25px;overflow:hidden}.level-progress i{background:linear-gradient(90deg,#7166e7,#bcf25c);height:100%;display:block}.level-question{color:#fff;background:#0d1423;border-radius:16px;padding:25px}.level-question>span{color:#a8b3c3;font:750 12px var(--font-geist-mono),monospace;text-transform:uppercase}.level-question p{margin:15px 0 0;font:22px/1.55 Georgia,serif}.level-options{border:0;margin:22px 0 16px;padding:0}.level-options legend,.level-answer{color:#5d6758;margin-bottom:10px;font-size:14px;font-weight:750;display:block}.level-options button{color:#4e5949;text-align:left;cursor:pointer;background:#f8faf6;border:1px solid #d9ded4;border-radius:11px;justify-content:space-between;align-items:center;width:100%;min-height:49px;margin-top:8px;padding:0 15px;font-size:15px;display:flex}.level-options button.selected{color:#312b74;background:#efedff;border-color:#7166e7}.level-options i{font-style:normal}.level-answer{margin:22px 0 16px}.level-answer input{color:#111827;background:#f8faf6;border:1px solid #d7ddd2;border-radius:11px;width:100%;min-height:50px;margin-top:9px;padding:0 14px;font-size:16px;display:block}.level-feedback{border-radius:14px;gap:14px;margin-top:18px;padding:20px;display:flex}.level-feedback>span{color:#bcf25c;background:#17230f;border-radius:10px;flex:0 0 34px;place-items:center;width:34px;height:34px;font-size:17px;display:grid}.level-feedback h3{margin:0 0 6px;font-size:17px}.level-feedback p{margin:0;font-size:14px;line-height:1.55}.level-feedback.retry{color:#614b1f;background:#fff1d6}.level-feedback.correct{color:#374d1a;background:#e8f7c9}.level-feedback.retry button{color:#574017;cursor:pointer;background:0 0;border:0;margin-top:12px;padding:0;font-size:13px;font-weight:750;text-decoration:underline}.level-feedback.correct .button{color:#fff;margin-top:15px}.revealed-solution{border-top:1px solid #614b1f33;padding-top:12px;margin-top:12px!important}.answer-note{color:#7b8577;text-align:center;margin:15px 0 0;font-size:12px}.view-title{margin:15px 0 40px}.view-title>p{margin-top:0}.review-list{gap:12px;display:grid}.review-list article{background:#fff;border:1px solid #d8ded3;border-radius:18px;grid-template-columns:auto 1fr auto;align-items:center;gap:22px;padding:25px;display:grid}.review-count{color:#fff;background:#0d1423;border-radius:16px;align-content:center;place-items:center;width:70px;height:70px;display:grid}.review-count b{color:#bcf25c;font-size:28px;line-height:1}.review-count span{color:#9eabba;margin-top:3px;font-size:12px}.review-list article>div:nth-child(2)>span{color:#6f786c;font:750 12px var(--font-geist-mono),monospace;text-transform:uppercase}.review-list h3{margin:6px 0;font-size:20px}.review-list p{color:#6c7767;margin:0;font-size:14px}.progress-title{justify-content:space-between;align-items:flex-end;gap:30px;display:flex}.mastery-summary{grid-template-columns:repeat(5,1fr);gap:10px;display:grid}.mastery-summary article{background:#fff;border:1px solid #d8ded3;border-radius:17px;padding:22px}.mastery-summary span{color:#717a6d;font:750 11px var(--font-geist-mono),monospace}.mastery-summary b{letter-spacing:-.055em;margin:20px 0 5px;font-size:34px;display:block}.mastery-summary p{color:#7a8476;margin:0;font-size:12px;line-height:1.45}.progress-detail-grid{grid-template-columns:1.4fr .6fr;gap:12px;margin-top:12px;display:grid}.progress-detail-grid>section{background:#fff;border:1px solid #d8ded3;border-radius:18px;padding:26px}.concept-progress{border-bottom:1px solid #e5e9e2;grid-template-columns:minmax(140px,1fr) minmax(150px,1.2fr) auto;align-items:center;gap:18px;padding:17px 0;display:grid}.concept-progress b,.concept-progress small{display:block}.concept-progress b{font-size:14px}.concept-progress small{color:#838c80;margin-top:4px;font-size:12px}.concept-progress>i{background:#edf0ea;border-radius:10px;height:7px;overflow:hidden}.concept-progress em{border-radius:inherit;background:linear-gradient(90deg,#7166e7,#bcf25c);height:100%;display:block}.concept-progress strong{font-size:13px}.subject-count{color:#5e6959;border-bottom:1px solid #e5e9e2;justify-content:space-between;padding:15px 0;font-size:14px;display:flex}.subject-count b{color:#0d1423;font-size:18px}.progress-detail-grid>section>p{color:#7a8476;margin:20px 0 0;font-size:12px;line-height:1.55}.learning-footer-links{border-top:1px solid #d7ddd2;flex-wrap:wrap;gap:10px 20px;max-width:1220px;margin:50px auto 0;padding-top:22px;display:flex}.learning-footer-links span{color:#747e70;text-transform:uppercase;letter-spacing:.08em;margin-right:auto;font-size:12px;font-weight:750}.learning-footer-links a{color:#667061;font-size:13px}.learning-footer-links a:hover{color:#6258d8}.learning-mobile-nav{display:none}.learning-app .button{font-size:14px}@media (max-width:1100px){.learning-sidebar{width:205px}.learning-main{margin-left:205px;padding-inline:26px}.diagnose-view{grid-template-columns:1fr}.diagnose-copy{position:static}.mastery-summary{grid-template-columns:repeat(3,1fr)}.lesson-grid{grid-template-columns:1fr}.lesson-grid>aside{grid-template-columns:1fr 1fr;gap:12px;display:grid}.prereq-card{margin-top:0}.practice-layout{grid-template-columns:210px minmax(0,1fr)}}@media (max-width:760px){.learning-sidebar{display:none}.learning-main{margin-left:0;padding:0 16px 100px}.learning-header{min-height:78px}.learning-header h1{font-size:21px}.learning-header>div:first-child>span,.private-pill{font-size:11px}.case-switcher label{display:none}.learning-view{padding-top:28px}.diagnose-copy{padding-top:0}.diagnose-copy h2,.view-title h2{font-size:45px}.intake-card{padding:21px}.today-focus{grid-template-columns:1fr;padding:30px}.today-real-grid{grid-template-columns:1fr}.lesson-hero{flex-direction:column;align-items:flex-start;padding:27px}.thinking-compare{grid-template-columns:1fr}.compare-arrow{transform:rotate(90deg)}.lesson-grid>aside,.micro-lesson{grid-template-columns:1fr}.micro-controls{border-top:1px solid #29354a;border-left:0;flex-direction:row}.micro-controls button{flex:1}.practice-layout{grid-template-columns:1fr}.practice-layout>aside{position:static}.mastery-rail{grid-template-columns:repeat(6,1fr);gap:4px;display:grid}.mastery-rail li:not(:last-child):after,.mastery-rail button>div{display:none}.mastery-rail button{justify-content:center;padding:4px}.level-stage{padding:21px}.review-list article{grid-template-columns:auto 1fr}.review-list article>.button{grid-column:span 2}.progress-title{flex-direction:column;align-items:flex-start}.mastery-summary{grid-template-columns:1fr 1fr}.progress-detail-grid{grid-template-columns:1fr}.learning-footer-links span{width:100%;margin-right:0}.learning-mobile-nav{z-index:40;background:#0d1423;border:1px solid #303b4e;border-radius:16px;grid-template-columns:repeat(6,1fr);padding:7px;display:grid;position:fixed;bottom:10px;left:10px;right:10px;box-shadow:0 12px 35px #090f1a40}.learning-mobile-nav button{color:#7f8b9c;background:0 0;border:0;border-radius:9px;justify-items:center;gap:3px;padding:6px 1px;display:grid}.learning-mobile-nav button>span{font-size:15px}.learning-mobile-nav small{font-size:10px}.learning-mobile-nav button.active{color:#bcf25c;background:#202b3e}}@media (max-width:480px){.mastery-summary{grid-template-columns:1fr}.mastery-rail{grid-template-columns:repeat(3,1fr)}.micro-controls{flex-direction:column}.review-list article{grid-template-columns:1fr}.review-list article>.button{grid-column:span 1}.case-switcher{display:none}.lesson-hero h2{font-size:40px}.scope-row{display:none}}.math-field-shell{width:100%;position:relative}.math-field-with-preview{width:100%}.rich-math-editor{color:#111827;width:100%;font:16px/1.65 var(--font-geist-sans),sans-serif;white-space:pre-wrap;overflow-wrap:anywhere;background:#fff;border:1px solid #d6dcd1;border-radius:10px;outline:none;padding:16px 128px 48px 16px;overflow:auto}.rich-math-editor:focus{border-color:#7166e7;box-shadow:0 0 0 3px #7166e726}.rich-math-editor[data-empty=true]:before{content:attr(data-placeholder);color:#8a9386;pointer-events:none;white-space:pre-line}.inline-formula-token{vertical-align:middle;color:#121a28;background:#f4f6f2;border:1px solid #d3d9cf;border-radius:7px;align-items:center;max-width:100%;margin:2px 3px;padding:3px 6px;display:inline-flex;overflow-x:auto}.inline-formula-token:focus-within{background:#f1efff;border-color:#7166e7;box-shadow:0 0 0 2px #7166e71f}.inline-math-editor{min-width:28px;max-width:100%;color:inherit;background:0 0;border:0;outline:0;padding:0;font-size:20px;display:inline-block}.inline-math-editor::part(virtual-keyboard-toggle),.inline-math-editor::part(menu-toggle){display:none}.formatted-math-text{white-space:pre-wrap}.formatted-math-text .readonly-math{vertical-align:middle;margin-inline:2px;font-size:1.08em}.structured-math-shell{min-height:50px}.structured-math-placeholder{z-index:1;color:#8a9386;text-overflow:ellipsis;white-space:nowrap;pointer-events:none;font-size:15px;line-height:1.25;position:absolute;top:50%;left:14px;right:116px;overflow:hidden;transform:translateY(-50%)}.structured-math-shell:focus-within .structured-math-placeholder{opacity:.5}.structured-mathfield,.composer-mathfield{--caret-color:#564bc9;--selection-background-color:#7166e733;color:#111827;background:#fff;border:1px solid #d6dcd1;border-radius:10px;outline:none;width:100%;display:block}.structured-mathfield{min-height:50px;padding:11px 112px 11px 13px;font-size:18px}.structured-mathfield:focus-within,.composer-mathfield:focus-within{border-color:#7166e7;box-shadow:0 0 0 3px #7166e726}.structured-mathfield::part(virtual-keyboard-toggle),.structured-mathfield::part(menu-toggle),.composer-mathfield::part(virtual-keyboard-toggle),.composer-mathfield::part(menu-toggle),.readonly-math::part(virtual-keyboard-toggle),.readonly-math::part(menu-toggle){display:none}.readonly-math{max-width:100%;color:inherit;pointer-events:none;font-size:inherit;background:0 0;border:0;padding:0;display:inline-block}.formula-trigger{z-index:2;color:#413a98;cursor:pointer;background:#fffffff0;border:1px solid #cfd5e1;border-radius:9px;align-items:center;gap:7px;min-height:32px;padding:0 10px;font-size:12px;font-weight:750;display:flex;position:absolute;bottom:10px;right:10px;box-shadow:0 3px 10px #1920300f}.math-field-shell.single .formula-trigger{top:50%;bottom:auto;transform:translateY(-50%)}.formula-trigger:hover{background:#f0eeff;border-color:#7166e7}.formula-trigger:focus-visible{outline-offset:2px;outline:3px solid #7166e740}.formula-trigger b{font:800 15px Georgia,serif}.formula-trigger.compact{min-width:34px;padding:0 7px}.formula-trigger.compact span{display:none}.symbol-dialog-backdrop{z-index:220;-webkit-backdrop-filter:blur(7px);backdrop-filter:blur(7px);background:#070c167a;place-items:center;padding:18px;display:grid;position:fixed;inset:0}.symbol-dialog{color:#101827;background:#f8fafc;border:1px solid #fff3;border-radius:22px;flex-direction:column;width:min(760px,100%);height:min(720px,100vh - 36px);display:flex;overflow:hidden;box-shadow:0 32px 100px #04091352}.symbol-dialog>header{color:#fff;background:#0d1423;justify-content:space-between;align-items:center;gap:20px;padding:22px 24px 18px;display:flex}.symbol-dialog>header span{color:#bcf25c;font:750 11px var(--font-geist-mono),monospace;letter-spacing:.11em}.symbol-dialog>header h2{letter-spacing:-.035em;margin:5px 0 0;font-size:23px}.symbol-dialog>header button{color:#fff;cursor:pointer;background:#182338;border:1px solid #374156;border-radius:10px;width:38px;height:38px;font-size:23px}.formula-composer{background:#eef1f6;border:1px solid #d8dee6;border-radius:14px;margin:14px 20px 10px;padding:13px}.formula-composer-editor{position:relative}.composer-mathfield{min-height:66px;padding:14px 16px;font-size:27px}.formula-composer-placeholder{z-index:1;color:#7b8594;font:16px/1.3 var(--font-geist-sans),sans-serif;text-overflow:ellipsis;white-space:nowrap;pointer-events:none;position:absolute;top:50%;left:17px;right:17px;overflow:hidden;transform:translateY(-50%)}.formula-composer-editor:focus-within .formula-composer-placeholder{opacity:.45}.formula-composer p{color:#657083;margin:8px 2px 0;font-size:11px;line-height:1.45}.symbol-search{background:#fff;border:1px solid #cfd6df;border-radius:12px;align-items:center;gap:10px;margin:4px 20px 12px;padding:0 14px;display:flex}.symbol-search>span{color:#6557e8;font-size:21px}.symbol-search input{color:#151d2e;background:0 0;border:0;outline:0;width:100%;min-height:48px;font-size:15px}.symbol-categories{scrollbar-width:thin;gap:7px;padding:0 20px 14px;display:flex;overflow-x:auto}.symbol-categories button{color:#596375;cursor:pointer;background:#fff;border:1px solid #d7dde5;border-radius:999px;flex:none;min-height:35px;padding:0 12px;font-size:13px;font-weight:680}.symbol-categories button.active{color:#fff;background:#6557e8;border-color:#6557e8}.symbol-results-head{color:#626d7d;justify-content:space-between;padding:0 22px 10px;display:flex}.symbol-results-head>span{font-size:14px;font-weight:780}.symbol-results-head small{font-size:12px}.symbol-grid{flex:1;grid-template-columns:repeat(6,minmax(0,1fr));align-content:start;gap:8px;padding:0 20px 18px;display:grid;overflow-y:auto}.symbol-grid button{color:#101827;cursor:pointer;background:#fff;border:1px solid #d9dfe7;border-radius:12px;align-content:center;place-items:center;gap:7px;min-height:82px;padding:8px 5px;display:grid}:is(.symbol-grid button:hover,.symbol-grid button:focus-visible){background:#f0eeff;border-color:#7166e7;outline:none}.symbol-grid b{font:24px Georgia,Times New Roman,serif}.symbol-grid span{color:#6b7483;text-overflow:ellipsis;white-space:nowrap;max-width:100%;font-size:10px;overflow:hidden}.symbol-empty{color:#616b7a;flex:1;align-content:center;place-items:center;gap:6px;display:grid}.symbol-empty b{color:#172033}.symbol-empty span{font-size:14px}.symbol-dialog>footer{background:#fff;border-top:1px solid #dde2e9;justify-content:space-between;align-items:center;gap:20px;padding:13px 20px;display:flex}.symbol-dialog>footer span{color:#6c7583;font-size:13px}.symbol-dialog>footer button{color:#fff;cursor:pointer;background:#0d1423;border:0;border-radius:9px;min-height:38px;padding:0 18px;font-size:14px;font-weight:750}.symbol-dialog>footer button:disabled{opacity:.38;cursor:default}.symbol-dialog>footer .formula-reset{color:#596576;background:#fff;border:1px solid #d3d9e2}.study-toolkit-root{z-index:100;position:relative}.workpad-launcher{z-index:90;color:#fff;cursor:pointer;background:#0d1423;border:1px solid #2f3a4e;border-radius:17px;align-items:center;gap:11px;min-width:174px;min-height:57px;padding:8px 14px 8px 9px;display:flex;position:fixed;bottom:22px;right:22px;box-shadow:0 18px 48px #090f1a47}.workpad-launcher:hover{transform:translateY(-2px);box-shadow:0 22px 52px #090f1a57}.workpad-launcher:focus-visible{outline-offset:3px;outline:3px solid #7166e766}.launcher-grid{color:#19250f;background:#bcf25c;border-radius:11px;flex:0 0 39px;place-items:center;width:39px;height:39px;font-size:21px;display:grid}.workpad-launcher>span:last-child{text-align:left}.workpad-launcher b,.workpad-launcher small{display:block}.workpad-launcher b{font-size:14px}.workpad-launcher small{color:#a9b4c2;margin-top:2px;font-size:11px}.workpad-panel{z-index:100;box-sizing:border-box;resize:both;background:0 0;border:1px solid #2e394c;border-radius:18px;flex-direction:column;min-width:430px;max-width:calc(100vw - 16px);min-height:360px;max-height:calc(100vh - 16px);display:flex;position:fixed;overflow:hidden;box-shadow:0 32px 90px #0409125c}.workpad-panel.minimized{resize:none;min-width:300px;min-height:58px}.workpad-header{color:#fff;cursor:move;-webkit-user-select:none;user-select:none;background:#0d1423;align-items:center;gap:18px;min-height:58px;padding:8px 10px 8px 13px;display:flex}.workpad-title{align-items:center;gap:10px;min-width:max-content;display:flex}.workpad-title>span{color:#18240e;background:#bcf25c;border-radius:10px;place-items:center;width:35px;height:35px;font-size:19px;display:grid}.workpad-title b,.workpad-title small{display:block}.workpad-title b{font-size:14px}.workpad-title small{color:#8e9aac;margin-top:2px;font-size:10px}.opacity-control{color:#a9b4c3;cursor:default;grid-template-columns:auto minmax(70px,1fr) 34px;align-items:center;gap:8px;min-width:190px;margin-left:auto;font-size:11px;display:grid}.opacity-control input{accent-color:#bcf25c;width:100%}.opacity-control b{color:#d9e0e9;font-size:11px}.window-actions{gap:5px;display:flex}.window-actions button{color:#c7d0dc;cursor:pointer;background:#182338;border:1px solid #303b50;border-radius:9px;place-items:center;width:34px;height:34px;font-size:18px;display:grid}.window-actions button:hover{color:#fff;background:#253149}.workpad-modes{background:#182338;grid-template-columns:repeat(3,1fr);gap:6px;padding:7px;display:grid}.workpad-modes button{color:#8997aa;text-align:left;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:10px;grid-template-rows:1fr 1fr;grid-template-columns:30px 1fr;align-items:center;column-gap:7px;min-height:52px;padding:6px 10px;display:grid}.workpad-modes button>span{color:#b7c2d0;background:#243047;border-radius:8px;grid-row:1/3;place-items:center;width:29px;height:29px;font-size:16px;display:grid}.workpad-modes b{align-self:end;font-size:13px}.workpad-modes small{align-self:start;font-size:10px}.workpad-modes button.active{color:#fff;background:#243047;border-color:#3a4760}.workpad-modes button.active>span{color:#19250f;background:#bcf25c}.draw-toolbar{background:#f7f9fc;border-bottom:1px solid #77829540;align-items:center;gap:12px;min-height:67px;padding:8px 10px;display:flex;overflow-x:auto}.drawing-tools,.draw-colors,.history-actions{align-items:center;gap:5px;display:flex}.drawing-tools button{color:#596476;cursor:pointer;background:#fff;border:1px solid #d7dde5;border-radius:9px;align-content:center;place-items:center;gap:2px;min-width:55px;height:48px;display:grid}.drawing-tools button>span{font-size:17px;line-height:1}.drawing-tools small{font-size:9px}.drawing-tools button.active{color:#3e359a;background:#eeecff;border-color:#6557e8}.draw-colors{border-left:1px solid #dce1e8;border-right:1px solid #dce1e8;padding:0 6px}.draw-colors button{cursor:pointer;border:2px solid #fff;border-radius:50%;width:25px;height:25px;box-shadow:0 0 0 1px #c7ced8}.draw-colors button.active{transform:scale(.9);box-shadow:0 0 0 2px #6557e8}.thickness-control{color:#626d7d;grid-template-columns:1fr auto;align-items:center;gap:2px 8px;min-width:145px;display:grid}.thickness-control span{text-transform:uppercase;font-size:10px;font-weight:750}.thickness-control b{font-size:10px}.thickness-control input{accent-color:#6557e8;grid-column:1/3;width:100%}.history-actions{margin-left:auto}.history-actions button{color:#4e5b6d;cursor:pointer;background:#fff;border:1px solid #d7dde5;border-radius:8px;min-width:35px;height:35px;padding:0 8px;font-size:15px}.history-actions button:disabled{opacity:.38;cursor:default}.workpad-surface{background-color:rgba(255,255,255,var(--board-opacity));flex:1;min-height:0;position:relative}.draw-surface{background-image:linear-gradient(rgba(84,96,117,var(--grid-opacity)) 1px,transparent 1px),linear-gradient(90deg,rgba(84,96,117,var(--grid-opacity)) 1px,transparent 1px);background-size:24px 24px;overflow:hidden}.draw-surface canvas{touch-action:none;cursor:crosshair;width:100%;height:100%;display:block}.resize-hint{color:#758297;text-transform:uppercase;letter-spacing:.08em;pointer-events:none;background:#0d1423;justify-content:flex-end;align-items:center;gap:5px;min-height:20px;padding:0 7px;font-size:9px;display:flex}.typed-work-surface{flex-direction:column;padding:16px;display:flex;overflow:auto}.typed-work-heading{justify-content:space-between;align-items:center;gap:20px;margin-bottom:10px;display:flex}.typed-work-heading span,.expression-heading span{color:#6258d8;font:750 10px var(--font-geist-mono),monospace;letter-spacing:.09em;display:block}.typed-work-heading b,.expression-heading b{color:#182132;margin-top:4px;font-size:14px;display:block}.typed-work-heading button,.expression-heading button{color:#526074;cursor:pointer;background:#ffffffe0;border:1px solid #ccd3dd;border-radius:8px;min-height:34px;padding:0 11px;font-size:12px;font-weight:700}.typed-work-heading button:disabled{opacity:.4}.typed-work-surface .math-field-shell{flex:1;min-height:190px}.typed-work-surface .rich-math-editor{color:#111827;background:0 0;border-color:#8791a047;height:100%;font:18px/1.75 Georgia,Times New Roman,serif;min-height:250px!important}.typed-work-surface>p{color:#5f6b7a;margin:9px 2px 0;font-size:11px}.graph-workspace{grid-template-columns:minmax(320px,42%) 1fr;display:grid;overflow:hidden}.expression-panel{background:rgba(248,250,253,var(--board-opacity));border-right:1px solid #6e7b8f47;flex-direction:column;min-width:0;padding:12px;display:flex;overflow:auto}.calculator-tabs{background:#e6ebf2d9;border:1px solid #c7cfdbe0;border-radius:10px;grid-template-columns:1fr 1fr;gap:4px;margin-bottom:12px;padding:4px;display:grid}.calculator-tabs button{color:#667184;cursor:pointer;background:0 0;border:0;border-radius:7px;min-height:34px;font-size:11px;font-weight:760}.calculator-tabs button.active{color:#252c3a;background:#fff;box-shadow:0 2px 8px #161f2e14}.expression-heading{justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px;display:flex}.expression-heading>button:disabled{opacity:.35;cursor:default}.expression-list{gap:7px;display:grid}.calculator-row{background:#ffffffd6;border:1px solid #cfd6e1e6;border-radius:11px;grid-template-columns:17px minmax(0,1fr) 27px;align-items:start;gap:7px;padding:8px;transition:border-color .16s,box-shadow .16s;display:grid}.calculator-row.active{border-color:#8176ea;box-shadow:0 0 0 2px #6557e81a}.calculator-row.has-error{border-color:#e4a5ad}.expression-color{cursor:pointer;border:2px solid #fff;border-radius:50%;width:13px;height:13px;margin-top:11px;box-shadow:0 0 0 1px #39445640}.expression-color.hidden{opacity:.28;filter:grayscale()}.calculator-row-main{min-width:0}.calculator-row-main .structured-mathfield{color:#101827;background:0 0;border-color:#0000;border-radius:7px;min-height:38px;margin:0;padding:6px 42px 6px 8px;font-size:17px}.calculator-row-main .structured-mathfield:focus-within{box-shadow:none;background:#fff;border-color:#c8c2ff}.calculator-row-main .structured-math-placeholder{font-size:12px;left:9px;right:47px}.calculator-row-main .formula-trigger{min-height:28px;box-shadow:none;border-color:#0000;right:3px}.remove-expression{color:#7c8694;cursor:pointer;background:0 0;border:0;border-radius:7px;width:27px;height:31px;margin-top:2px;font-size:18px}.remove-expression:hover{background:#edf0f5}.remove-expression:disabled{opacity:.2;cursor:default}.expression-result{color:#4c586b;flex-wrap:wrap;gap:4px 9px;padding:2px 8px 5px;font-size:11px;display:flex}.expression-result b{color:#293449;font-size:12px}.expression-result span{color:#758093}.expression-result.error b{color:#b23647}.variable-slider{color:#5b6575;grid-template-columns:14px minmax(70px,1fr) auto;align-items:center;gap:6px;padding:2px 8px 6px;font-size:10px;display:grid}.variable-slider input{accent-color:#6557e8;width:100%}.variable-slider b{color:#293449;text-align:right;min-width:29px}.keypad-toggle{color:#5d687a;cursor:pointer;background:0 0;border:0;align-self:flex-start;align-items:center;gap:6px;margin-top:10px;padding:5px 8px;font-size:10px;font-weight:720;display:flex}.calculator-keypad{background:#eff3f8db;border:1px solid #cfd6e1d9;border-radius:10px;grid-template-columns:repeat(6,minmax(34px,1fr));gap:4px;margin-top:4px;padding:6px;display:grid}.calculator-keypad button{color:#263247;min-width:0;min-height:32px;font:700 12px var(--font-geist-sans),sans-serif;cursor:pointer;background:#ffffffeb;border:1px solid #d9dfe7;border-radius:7px;padding:0 3px}.calculator-keypad button:hover{background:#f0eeff;border-color:#887dea}.calculator-keypad button.function-key{color:#4f46b5;font-family:Georgia,Times New Roman,serif}.calculator-help{color:#687383;margin:9px 2px 0;font-size:10px;line-height:1.45}.regression-panel{flex-direction:column;flex:1;min-height:0;display:flex}.data-table-wrap{background:#ffffffd1;border:1px solid #d4dbe4;border-radius:10px;max-height:210px;overflow:auto}.calculator-data-table{border-collapse:collapse;width:100%}.calculator-data-table th{z-index:1;color:#687386;text-align:center;background:#e9edf3;padding:6px;font-size:10px;position:sticky;top:0}.calculator-data-table th:first-child{width:28px}.calculator-data-table th:last-child{width:30px}.calculator-data-table td{color:#778294;text-align:center;border-top:1px solid #e2e6ec;padding:3px;font-size:10px}.calculator-data-table input{color:#172033;text-align:right;background:0 0;border:1px solid #0000;border-radius:6px;width:100%;min-width:50px;height:30px;padding:0 7px;font-size:13px}.calculator-data-table input:focus{background:#fff;border-color:#8176ea;outline:none;box-shadow:0 0 0 2px #6557e81a}.calculator-data-table button{color:#8590a0;cursor:pointer;background:0 0;border:0;border-radius:6px;width:25px;height:25px}.calculator-data-table button:hover{background:#edf0f5}.calculator-data-table button:disabled{opacity:.2}.model-select{color:#566174;grid-template-columns:1fr auto;align-items:center;gap:10px;margin-top:10px;font-size:11px;font-weight:700;display:grid}.model-select select{color:#202b3e;background:#ffffffe6;border:1px solid #cbd3de;border-radius:8px;height:34px;padding:0 27px 0 9px;font-size:11px}.fit-result,.fit-empty{background:#ffffffd6;border:1px solid #d8dee7;border-radius:10px;margin-top:9px;padding:11px}.fit-result>span{color:#6557e8;font:760 9px var(--font-geist-mono),monospace;letter-spacing:.07em}.fit-result>b{overflow-wrap:anywhere;color:#152033;margin-top:5px;font:700 15px Georgia,serif;display:block}.fit-result>div{flex-wrap:wrap;gap:5px;margin-top:8px;display:flex}.fit-result small{color:#687386;background:#edf0f5;border-radius:6px;padding:4px 6px;font-size:9px}.fit-result small strong{color:#283447;margin-left:3px}.fit-actions{justify-content:space-between;align-items:center}.fit-actions button{color:#fff;cursor:pointer;background:#172033;border:0;border-radius:7px;min-height:31px;padding:0 9px;font-size:10px;font-weight:720}.fit-actions label{color:#5e697b;align-items:center;gap:5px;font-size:10px;display:flex}.fit-actions input{accent-color:#e85d75}.fit-empty{color:#6c7788;font-size:11px;line-height:1.45}.fit-empty.error{color:#a83b4b;border-color:#e4b7bd}.clear-data{color:#697587;cursor:pointer;background:0 0;border:0;align-self:flex-start;margin-top:8px;font-size:10px}.clear-data:disabled{opacity:.35;cursor:default}.fit-note{color:#7a8493;margin:8px 2px 0;font-size:9px;line-height:1.4}.graph-stage{background-color:rgba(255,255,255,var(--board-opacity));min-width:0;min-height:0;position:relative;overflow:hidden}.graph-stage canvas{touch-action:none;cursor:grab;width:100%;height:100%;display:block}.graph-stage canvas:active{cursor:grabbing}.graph-controls{z-index:3;gap:5px;display:flex;position:absolute;top:10px;right:10px}.graph-controls button{color:#283447;cursor:pointer;background:#ffffffeb;border:1px solid #cbd2dd;border-radius:8px;min-width:34px;height:34px;padding:0 9px;font-size:13px;font-weight:750;box-shadow:0 3px 12px #1a233214}.graph-guide{z-index:2;color:#697587;pointer-events:none;background:#ffffffc7;border-radius:6px;padding:4px 7px;font-size:9px;position:absolute;bottom:9px;right:11px}.coordinate-readout{z-index:2;color:#4d596b;font:10px var(--font-geist-mono),monospace;pointer-events:none;background:#ffffffe6;border:1px solid #c8d0dcd9;border-radius:7px;padding:5px 8px;position:absolute;bottom:10px;left:10px}.graph-insights{z-index:2;pointer-events:none;background:#ffffffdb;border:1px solid #c8d0dccc;border-radius:9px;gap:3px;max-width:min(245px,55%);padding:8px 9px;display:grid;position:absolute;top:10px;left:10px;box-shadow:0 5px 16px #161f2e0f}.graph-insights span{color:#6557e8;font:740 8px var(--font-geist-mono),monospace;letter-spacing:.08em}.graph-insights b{color:#4e5a6c;text-overflow:ellipsis;white-space:nowrap;font-size:9px;font-weight:650;overflow:hidden}@media (max-width:760px){.workpad-launcher{min-width:154px;bottom:92px;right:12px}.workpad-panel,.workpad-panel.minimized{resize:none;min-width:0;max-width:none;min-height:300px;width:auto!important;height:min(70vh,620px)!important;inset:auto 8px 82px!important}.workpad-panel.minimized{min-height:58px;height:58px!important}.workpad-title small,.opacity-control>span{display:none}.opacity-control{grid-template-columns:minmax(55px,1fr) 30px;gap:5px;min-width:90px}.workpad-modes button{text-align:center;justify-content:center;display:flex}.workpad-modes button>span{flex:0 0 29px}.workpad-modes small{display:none}.draw-toolbar{align-items:flex-start}.draw-colors{grid-template-columns:repeat(3,25px);display:grid}.history-actions{margin-left:0}.graph-workspace{grid-template-rows:minmax(235px,48%) 1fr;grid-template-columns:1fr}.expression-panel{border-bottom:1px solid #6e7b8f47;border-right:0}.calculator-row{grid-template-columns:17px minmax(0,1fr) 27px}.calculator-keypad{grid-template-columns:repeat(6,minmax(32px,1fr))}.symbol-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.symbol-dialog>footer span{display:none}}@media (max-width:480px){.formula-trigger span{display:none}.rich-math-editor{padding-right:58px}.structured-mathfield{padding-right:54px}.symbol-dialog-backdrop{padding:8px}.symbol-dialog{border-radius:16px;height:calc(100vh - 16px)}.symbol-dialog>header{padding:17px}.symbol-dialog>header h2{font-size:20px}.formula-composer{margin-inline:12px}.composer-mathfield{min-height:58px;padding:10px;font-size:23px}.symbol-grid{grid-template-columns:repeat(3,minmax(0,1fr));padding-inline:12px}.symbol-search{margin-inline:12px}.symbol-categories{padding-inline:12px}.symbol-grid button{min-height:74px}.workpad-panel,.workpad-panel.minimized{bottom:78px!important}.workpad-header{gap:8px}.workpad-title b{font-size:12px}.workpad-title>span{width:31px;height:31px}.opacity-control{min-width:76px}.workpad-modes{gap:3px}.workpad-modes button{padding:5px}.workpad-modes button>span{display:none}.drawing-tools button{min-width:47px}.thickness-control{min-width:125px}}.formula-library-page{color:#0d1423;background:#f2f5ef;min-height:100vh;overflow:hidden}.formula-topbar{border-bottom:1px solid #d8ded3;justify-content:space-between;align-items:center;gap:22px;width:min(1220px,100% - 40px);min-height:82px;margin:0 auto;display:flex}.formula-topbar>div{align-items:center;gap:24px;display:flex}.formula-topbar>div>a:not(.button){color:#5e685a;font-size:14px;font-weight:680}.formula-topbar>div>a:not(.button):hover{color:#6258d8}.formula-hero{grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:48px;width:min(1120px,100% - 40px);margin:0 auto;padding:78px 0 54px;display:grid}.formula-hero h1{letter-spacing:-.07em;max-width:850px;margin:17px 0 21px;font-size:clamp(53px,7.2vw,88px);line-height:.93}.formula-hero h1 em{color:#626c5d;font-family:Georgia,serif;font-weight:500}.formula-hero>div:first-child>p{color:#5e685a;max-width:660px;margin:0;font-size:17px;line-height:1.65}.formula-hero-count{background:#fafbf8;border:1px solid #d4dacd;border-radius:18px;align-items:center;gap:15px;min-width:205px;padding:23px;display:flex;box-shadow:0 12px 34px #1c26180f}.formula-hero-count b{color:#6258d8;letter-spacing:-.06em;font-size:52px;line-height:1}.formula-hero-count span{color:#65705f;font-size:13px;font-weight:700;line-height:1.35}.formula-search-shell{z-index:20;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);background:#f2f5eff0;border-block:1px solid #d8ded3;padding:22px max(20px,50vw - 560px);position:sticky;top:0}.formula-search-shell>label{background:#fff;border:1px solid #cdd5c7;border-radius:15px;align-items:center;gap:12px;max-width:760px;min-height:58px;margin:0 auto;padding:0 17px;display:flex;box-shadow:0 10px 30px #1a241612}.formula-search-shell>label>span{color:#6258d8;font-size:25px}.formula-search-shell input{color:#131b2a;background:0 0;border:0;outline:0;width:100%;min-width:0;font-size:16px}.formula-search-shell>label>button{color:#5f6a5a;cursor:pointer;background:#eef1ec;border:0;border-radius:8px;width:31px;height:31px;font-size:18px}.formula-search-shell>label>button:disabled{visibility:hidden}.formula-search-shell>nav{scrollbar-width:thin;justify-content:center;gap:7px;margin-top:15px;padding-bottom:2px;display:flex;overflow-x:auto}.formula-search-shell>nav button{color:#5f695a;cursor:pointer;background:#fafbf8;border:1px solid #d4dacd;border-radius:999px;flex:none;min-height:36px;padding:0 13px;font-size:12px;font-weight:720}.formula-search-shell>nav button:hover{color:#4b429f;border-color:#8b82e8}.formula-search-shell>nav button.active{color:#fff;background:#6258d8;border-color:#6258d8}.formula-results{width:min(1120px,100% - 40px);margin:0 auto;padding:52px 0 88px}.formula-results-title{justify-content:space-between;align-items:end;gap:30px;margin-bottom:24px;display:flex}.formula-results-title span{color:#6258d8;font:750 10px var(--font-geist-mono),monospace;letter-spacing:.11em}.formula-results-title h2{letter-spacing:-.04em;margin:6px 0 0;font-size:30px}.formula-results-title>p{color:#707a6c;text-align:right;max-width:310px;margin:0;font-size:13px;line-height:1.5}.formula-card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;display:grid}.formula-card{background:#fff;border:1px solid #d7ddd2;border-radius:18px;flex-direction:column;min-width:0;padding:21px;transition:transform .18s,border-color .18s,box-shadow .18s;display:flex;box-shadow:0 8px 25px #19221609}.formula-card:hover{border-color:#c0c7b9;transform:translateY(-2px);box-shadow:0 15px 35px #19221613}.formula-card-top{justify-content:space-between;align-items:center;gap:12px;display:flex}.formula-card-top>span{color:#6258d8;font:720 9px var(--font-geist-mono),monospace;letter-spacing:.08em;text-transform:uppercase}.formula-card-top button{color:#65705f;cursor:pointer;background:#f7f9f5;border:1px solid #d9ded4;border-radius:8px;min-height:30px;padding:0 9px;font-size:10px;font-weight:720}.formula-card-top button:hover{color:#4c439f;border-color:#8076e2}.formula-card h3{letter-spacing:-.025em;min-height:44px;margin:18px 0 8px;font-size:19px;line-height:1.2}.formula-display{color:#131b29;background:#f1f3ef;border-radius:12px;place-items:center;min-height:104px;padding:18px 10px;font-size:23px;display:grid;overflow-x:auto}.formula-explanation{flex:1;padding-top:18px}.formula-explanation span{color:#7a8375;font:720 9px var(--font-geist-mono),monospace;letter-spacing:.1em;margin-top:13px;display:block}.formula-explanation p{color:#4e594a;margin:5px 0 0;font-size:13px;line-height:1.55}.formula-no-results{color:#697463;text-align:center;border:1px dashed #cbd3c5;border-radius:18px;place-items:center;min-height:310px;padding:40px;display:grid}.formula-no-results b{color:#1d271a;font-size:25px}.formula-no-results p{margin:8px 0 18px}.formula-no-results button{color:#fff;cursor:pointer;background:#0d1423;border:0;border-radius:9px;min-height:40px;padding:0 15px;font-weight:700}.formula-library-page>.site-footer{width:min(1220px,100% - 40px);margin-inline:auto}@media (max-width:920px){.formula-card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.formula-hero{padding-top:58px}.formula-hero-count{min-width:170px}.formula-hero-count b{font-size:43px}}@media (max-width:660px){.formula-topbar{min-height:72px}.formula-topbar>div>a:not(.button){display:none}.formula-topbar .button{padding-inline:13px}.formula-hero{grid-template-columns:1fr;padding:46px 0 35px}.formula-hero h1{font-size:51px}.formula-hero-count{width:max-content}.formula-search-shell{padding:15px 16px}.formula-search-shell>nav{justify-content:flex-start}.formula-results{padding-top:35px}.formula-results-title{flex-direction:column;align-items:flex-start}.formula-results-title>p{text-align:left}.formula-card-grid{grid-template-columns:1fr}.formula-card h3{min-height:0}.formula-library-page>.site-footer{width:calc(100% - 32px)}}.auth-page,.onboarding-page,.account-page{color:#0d1423;background:#f2f5ef;min-height:100vh}.auth-topbar{border-bottom:1px solid #d5dbd0;justify-content:space-between;align-items:center;gap:20px;width:min(1180px,100% - 40px);min-height:78px;margin:0 auto;display:flex}.auth-back{color:#5e685a;font-size:13px;font-weight:700}.auth-layout{grid-template-columns:minmax(0,1.12fr) minmax(380px,.72fr);align-items:center;gap:72px;width:min(1120px,100% - 40px);margin:0 auto;padding:78px 0 90px;display:grid}.auth-story{padding-right:25px}.auth-story h1,.onboarding-copy h1{letter-spacing:-.07em;max-width:700px;margin:17px 0 25px;font-size:clamp(54px,6.5vw,86px);line-height:.92}.auth-story>p,.onboarding-copy>p{color:#596454;max-width:650px;font-size:17px;line-height:1.65}.auth-story ol{background:#d6dcd1;border:1px solid #d6dcd1;border-radius:18px;gap:1px;max-width:620px;margin:44px 0 0;padding:0;list-style:none;display:grid;overflow:hidden}.auth-story li{background:#fafbf8;grid-template-columns:45px 1fr;align-items:center;gap:14px;padding:18px 20px;display:grid}.auth-story li>span{color:#6258d8;font:750 11px var(--font-geist-mono),monospace}.auth-story li b,.auth-story li small{display:block}.auth-story li b{font-size:14px}.auth-story li small{color:#737d70;margin-top:4px;font-size:12px;line-height:1.45}.auth-card,.onboarding-card,.account-panel{background:#fff;border:1px solid #d4dacd;border-radius:24px;box-shadow:0 28px 70px #19231617}.auth-card{padding:36px}.auth-card-mark{color:#15220d;letter-spacing:-.04em;background:#bcf25c;border-radius:14px;place-items:center;width:52px;height:52px;font-weight:850;display:grid}.auth-card-kicker{color:#6258d8;font:750 11px var(--font-geist-mono),monospace;letter-spacing:.1em;margin:28px 0 8px}.auth-card h2{letter-spacing:-.05em;margin:0;font-size:34px;line-height:1.05}.auth-card-copy{color:#65705f;margin:14px 0 24px;font-size:14px;line-height:1.6}.auth-primary{justify-content:space-between;width:100%;min-height:54px}.auth-security{background:#f0f3ed;border-radius:12px;gap:11px;margin:18px 0;padding:14px;display:flex}.auth-security>span{color:#385711;background:#dff7b3;border-radius:50%;flex:0 0 23px;place-items:center;width:23px;height:23px;font-size:12px;display:grid}.auth-security p{color:#697363;margin:0;font-size:11px;line-height:1.5}.auth-security b{color:#36402f;font-size:12px}.auth-switch{color:#65705f;text-align:center;margin:24px 0 0;font-size:13px}.auth-switch a,.auth-legal a{color:#554bc2;text-underline-offset:2px;font-weight:750;text-decoration:underline}.auth-legal{color:#8a9286;text-align:center;margin:17px 0 0;font-size:10px;line-height:1.5}.onboarding-layout{grid-template-columns:minmax(0,1fr) minmax(380px,.75fr);align-items:center;gap:70px;width:min(1120px,100% - 40px);margin:0 auto;padding:68px 0 95px;display:grid}.secure-note,.account-sync-pill{color:#60705a;font-size:12px;font-weight:750}.secure-note:first-letter,.account-sync-pill:first-letter{color:#74a92a}.account-boundary{background:#fafbf8;border:1px solid #d7ddd2;border-radius:16px;grid-template-columns:150px 1fr;gap:12px 18px;max-width:640px;margin-top:36px;padding:20px;display:grid}.account-boundary b{color:#303a2c;font-size:12px}.account-boundary span{color:#727c6e;font-size:12px;line-height:1.5}.onboarding-card{padding:34px}.onboarding-progress{color:#687363;font:750 10px var(--font-geist-mono),monospace;letter-spacing:.07em;grid-template-columns:1fr auto;gap:8px;display:grid}.onboarding-progress>b{color:#6258d8}.onboarding-progress>i{background:#e8ece5;border-radius:99px;grid-column:1/3;height:5px;overflow:hidden}.onboarding-progress em{background:linear-gradient(90deg,#7166e7,#bcf25c);width:50%;height:100%;display:block}.onboarding-card h2{letter-spacing:-.045em;margin:29px 0 8px;font-size:32px}.onboarding-card>p{color:#6b7566;margin:0 0 24px;font-size:13px;line-height:1.55}.account-field{color:#495444;margin-top:16px;font-size:13px;font-weight:750;display:block}.account-field input,.account-field select{color:#182014;background:#f9faf7;border:1px solid #d3dacd;border-radius:11px;outline:0;width:100%;min-height:49px;margin-top:7px;padding:0 13px;font-size:15px;display:block}.account-field input:focus,.account-field select:focus{border-color:#766ae4;box-shadow:0 0 0 3px #7166e71f}.verified-email{background:#f0f3ed;border-radius:11px;align-items:center;gap:11px;margin:18px 0;padding:13px;display:flex}.verified-email>span{color:#1d2b10;background:#bcf25c;border-radius:8px;place-items:center;width:25px;height:25px;font-size:12px;display:grid}.verified-email b,.verified-email small{display:block}.verified-email b{font-size:12px}.verified-email small{color:#707b6b;margin-top:2px;font-size:11px}.account-check{color:#596354;grid-template-columns:18px 1fr;align-items:start;gap:9px;margin-top:13px;font-size:12px;line-height:1.5;display:grid}.account-check input{accent-color:#6557e8;width:16px;height:16px;margin-top:1px}.account-check a{color:#554bc2;font-weight:700;text-decoration:underline}.onboarding-submit{justify-content:space-between;width:100%;min-height:53px;margin-top:21px}.onboarding-note{text-align:center;color:#858e81!important;margin:14px 2px 0!important;font-size:10px!important}.account-error{font-weight:700;color:#af2c41!important;margin:13px 0 0!important;font-size:12px!important}.account-page{padding-bottom:90px}.account-hero{justify-content:space-between;align-items:end;gap:28px;width:min(1100px,100% - 40px);margin:0 auto;padding:65px 0 42px;display:flex}.account-hero h1{letter-spacing:-.07em;margin:11px 0 7px;font-size:clamp(52px,7vw,82px);line-height:.95}.account-hero p{color:#667160;margin:0;font-size:14px}.account-sync-pill{background:#fafbf8;border:1px solid #d4dacd;border-radius:999px;padding:10px 13px}.account-settings-grid{grid-template-columns:1.15fr .85fr;gap:14px;width:min(1100px,100% - 40px);margin:0 auto;display:grid}.account-panel{box-shadow:none;padding:28px}.account-panel:first-child{grid-row:span 2}.account-panel h2{letter-spacing:-.04em;margin:8px 0 9px;font-size:25px}.account-panel>p{color:#697363;font-size:13px;line-height:1.55}.account-panel>.button{margin-top:20px}.account-status{min-height:20px;font-weight:700;color:#47711a!important;margin:12px 0 0!important}.account-access{color:#fff;background:#0d1423;border-color:#0d1423}.account-access .learning-kicker{color:#bcf25c}.account-access>p{color:#aeb8c6}.account-danger{background:snow;border-color:#e0c9c9}.account-danger details{margin-top:18px}.account-danger summary{color:#9d3443;cursor:pointer;font-size:12px;font-weight:750}.account-danger button{color:#fff;cursor:pointer;background:#bf4a5b;border:1px solid #bf4a5b;border-radius:9px;width:100%;min-height:43px;margin-top:13px;font-size:12px;font-weight:750}.account-danger button:disabled{opacity:.55}@media (max-width:900px){.auth-layout,.onboarding-layout{grid-template-columns:1fr;gap:45px;padding-top:55px}.auth-story{padding-right:0}.auth-story h1,.onboarding-copy h1{max-width:800px}.auth-card,.onboarding-card{width:min(520px,100%);margin:auto}.account-settings-grid{grid-template-columns:1fr}.account-panel:first-child{grid-row:auto}}@media (max-width:760px){.case-switcher .private-pill,.account-chip>b{display:none}.account-chip{padding-right:5px}.account-hero{flex-direction:column;align-items:flex-start}.account-sync-pill{align-self:flex-start}}@media (max-width:560px){.nav-account-actions{gap:10px}.nav-account-actions>a:first-child{display:none}.auth-topbar{width:calc(100% - 28px);min-height:68px}.auth-layout,.onboarding-layout{width:calc(100% - 28px);padding:45px 0 70px}.auth-story h1,.onboarding-copy h1{font-size:48px}.auth-story ol{margin-top:30px}.auth-card,.onboarding-card{border-radius:19px;padding:24px}.account-boundary{grid-template-columns:1fr}.secure-note{display:none}.account-hero,.account-settings-grid{width:calc(100% - 28px)}.account-hero{padding-top:48px}.account-panel{padding:23px}.nav-account-actions .button{padding-inline:12px}}.guest-banner{color:#182135;background:#f4f6fb;border:1px solid #cbd4e1;border-left:4px solid #6557e8;border-radius:14px;justify-content:space-between;align-items:flex-start;gap:24px;margin:0 0 26px;padding:22px 24px;display:flex}.guest-banner b{font-size:17px}.guest-banner p{max-width:650px;margin:7px 0;font-size:14px;line-height:1.6}.guest-banner small{color:#45516a;font-size:13px;line-height:1.6}.guest-banner a{color:#4438ab;text-underline-offset:3px;text-decoration:underline}.guest-actions{min-width:205px;max-width:290px;font-size:14px;line-height:1.6}.guest-actions details{margin-top:12px}.guest-actions summary{cursor:pointer}.guest-actions button{color:#9c2136;cursor:pointer;background:#fff;border:1px solid #b75164;border-radius:7px;padding:9px 13px}.guest-actions [role=status]{margin-top:8px;display:block}.auth-guest{border-top:1px solid #d9deea;margin-top:24px;padding-top:20px}.lesson-extra-stack{gap:12px;margin:24px 0;display:grid}.topic-video{margin-top:20px}.topic-video h3{margin:0;font-size:22px;line-height:1.4}.topic-video .video-return{color:#4b5870;font-size:15px}.tutor-chat-root{z-index:110;position:relative}.tutor-launcher{z-index:110;color:#fff;cursor:pointer;background:#5b48c8;border:1px solid #7463dc;border-radius:14px;align-items:center;gap:10px;min-height:50px;padding:12px 18px;font-size:15px;font-weight:650;display:flex;position:fixed;bottom:22px;right:22px;box-shadow:0 8px 25px #1d16432b}.tutor-launcher span{font-size:20px}.study-toolkit-root .workpad-launcher{bottom:86px}.tutor-chat-panel{color:#172238;background:#fff;border:1px solid #cdd3e2;border-radius:20px;flex-direction:column;width:440px;max-width:calc(100vw - 24px);height:min(730px,100dvh - 110px);display:flex;position:fixed;bottom:86px;right:22px;overflow:hidden;box-shadow:0 22px 80px #0d142344}.tutor-chat-panel>header{color:#fff;background:#101827;flex:none;justify-content:space-between;align-items:center;gap:20px;padding:20px;display:flex}.tutor-chat-panel>header span{font:12px/1.4 var(--font-geist-mono),monospace;color:#b9ed64;letter-spacing:.06em}.tutor-chat-panel>header h2{letter-spacing:-.04em;margin:5px 0 0;font-size:23px}.tutor-chat-panel>header button{color:#fff;cursor:pointer;background:#202b3d;border:1px solid #526078;border-radius:10px;width:38px;height:38px;font-size:25px}.tutor-conversation{overscroll-behavior:contain;flex:1;min-height:100px;padding:20px;font-size:16px;line-height:1.6;overflow-y:auto}.tutor-connection{color:#58667c;background:#edf1f7;border-radius:8px;margin:0 0 20px;padding:10px 12px;font-size:14px}.tutor-connection.connected{color:#24624e;background:#edf7f1}.tutor-offline h3{margin:12px 0;font-size:21px}.tutor-offline a{color:#4938b3;text-decoration:underline}.tutor-prompts{flex-wrap:wrap;gap:8px;margin:18px 0;display:flex}.tutor-prompts button{color:#4b399e;cursor:pointer;background:#f5f3ff;border:1px solid #d8d2ee;border-radius:8px;padding:8px 10px;font-size:14px}.tutor-message{overflow-wrap:anywhere;background:#f2f4f8;border-radius:12px;margin:16px 0;padding:15px}.tutor-message.user{background:#eeeafb}.tutor-message>b{color:#546279;margin-bottom:7px;font-size:13px;display:block}.tutor-message>div{white-space:pre-wrap;font-size:16px;line-height:1.65}.tutor-message .readonly-math{max-width:100%;overflow-x:auto}.tutor-thinking{color:#5848b3;font-size:14px}.tutor-compose{overscroll-behavior:contain;background:#fafbfe;border-top:1px solid #dce1ec;flex:none;max-height:52%;padding:16px;font-size:14px;line-height:1.5;overflow-y:auto}.tutor-compose details summary{cursor:pointer;color:#4c5870}.tutor-compose details p{margin:10px 0;font-size:14px;line-height:1.6}.tutor-compose .feedback-disclosure{margin-top:10px}.tutor-compose .extra-body{padding:12px}.tutor-consent{color:#4c5870;align-items:flex-start;gap:9px;margin:12px 0;font-size:13px;line-height:1.5;display:flex}.tutor-consent input{accent-color:#6552cc;flex:0 0 17px;width:17px;height:17px;margin-top:3px}.tutor-send-row{justify-content:space-between;align-items:center;gap:12px;margin-top:10px;display:flex}.tutor-send-row .button{padding:10px 14px;font-size:14px}.tutor-error{color:#795218;overflow-wrap:anywhere;background:#fff2dd;border-radius:7px;padding:10px}@media (max-width:760px){.tutor-launcher{min-height:46px;padding:9px 13px;font-size:14px;bottom:90px;right:12px}.study-toolkit-root .workpad-launcher{min-width:120px;min-height:46px;padding:6px 10px;bottom:90px;right:160px}.workpad-launcher small{display:none!important}.tutor-chat-panel{height:min(680px,100dvh - 170px);bottom:146px;right:12px}.tutor-compose{max-height:58%}.tutor-conversation{min-height:85px;padding:14px}.tutor-chat-panel>header{padding:14px}}.learning-extra,.feedback-disclosure{color:#182338;background:#fff;border:1px solid #d6ddea;border-radius:14px;overflow:hidden}.learning-extra>summary,.feedback-disclosure>summary{cursor:pointer;padding:19px 22px;font-size:16px;font-weight:650;line-height:1.5}.learning-extra>summary span{color:#59677d;margin-left:14px;font-size:14px;font-weight:400;display:inline-block}.learning-extra[open]>summary{border-bottom:1px solid #e1e6ef}.extra-body{gap:16px;padding:22px;font-size:16px;line-height:1.6;display:grid}.extra-body p{margin:0}.extra-body label{gap:7px;font-weight:550;display:grid}.extra-body textarea,.extra-body select,.extra-body input[type=file]{color:#182338;width:100%;min-width:0;font:inherit;background:#fff;border:1px solid #cbd4e4;border-radius:9px;padding:12px}.extra-body textarea{resize:vertical}.extra-body small{color:#58677b;font-size:14px;line-height:1.5}.extra-body .button{justify-self:start}.extra-body .check-label{align-items:flex-start;gap:10px;font-weight:400;display:flex}.check-label input{accent-color:#5745cc;flex:0 0 18px;width:18px;height:18px;margin-top:4px}.quiet-action{color:#4938b3;cursor:pointer;font:inherit;text-underline-offset:4px;text-align:left;background:0 0;border:0;padding:10px 0;font-size:14px;text-decoration:underline}.quiet-action:disabled{color:#718096;cursor:default}.today-secondary{margin-top:8px;display:block}.photo-reader{background:#f7f9fc;margin:12px 0 24px}.photo-preview{max-width:100%;margin:auto;line-height:0;display:table;position:relative;overflow:hidden}.photo-preview img{width:auto;max-width:100%;max-height:360px;display:block}.photo-crop-outline{pointer-events:none;border:2px solid #5a45d4;position:absolute;box-shadow:0 0 0 1000px #10172a55}.crop-controls{grid-template-columns:1fr 1fr;gap:16px;margin:16px 0;display:grid}.extra-body input[type=range]{accent-color:#6653de;width:100%}.step-check{background:#f2f5fa;border-left:3px solid #62718a;border-radius:10px;padding:20px}.step-check.wrong-turn{background:#fff5e7;border-color:#a9690c}.step-check.consistent{background:#edf7f3;border-color:#23745e}.step-check h3{margin:0 0 12px;font-size:19px;line-height:1.4}.step-check p+p{margin-top:10px}.equation-line{overflow-wrap:anywhere;padding:8px 0 16px;font-family:Georgia,serif;font-size:21px}.explorer-result{text-align:center;overflow-wrap:anywhere;background:#f6f5ff;border:1px solid #d8d4ef;border-radius:10px;padding:24px;font-size:24px;line-height:1.7}.explorer svg{justify-self:center;width:100%;max-width:400px}.work-comparison{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.work-comparison article{border:1px solid #d8dfeb;border-radius:10px;padding:16px;overflow:hidden}.work-comparison h3{margin:0 0 4px;font-size:18px}.work-comparison p{max-height:160px;margin:12px 0;overflow:auto}.work-comparison button{color:#4938b3;cursor:pointer;text-align:left;background:0 0;border:0;padding:10px 0;font-size:14px}.feedback-disclosure{background:0 0;margin-top:22px}.feedback-disclosure>summary{color:#4b5970;padding:13px 17px;font-size:14px;font-weight:450}.report-preview{white-space:pre-wrap;overflow-wrap:anywhere;background:#edf1f7;border-radius:8px;max-height:240px;margin:0;padding:16px;font:14px/1.6 inherit;overflow:auto}.bounded-session{background:#fff;border:1px solid #d6ddea;border-radius:20px;max-width:780px;margin:0 auto;padding:28px}.session-top,.session-heading{justify-content:space-between;align-items:center;gap:20px;display:flex}.session-top{color:#5b687c;letter-spacing:.04em;margin-bottom:24px;font-size:13px}.session-top button{color:#4938b3;cursor:pointer;white-space:nowrap;background:0 0;border:0;padding:10px;text-decoration:underline}.session-heading h2{letter-spacing:-.03em;margin:0 0 16px;font-size:30px}.session-heading b{white-space:nowrap;color:#59667a;font-size:14px}.bounded-session progress{accent-color:#6653de;width:100%;height:7px;margin-bottom:28px;display:block}.bounded-session>.button{margin-top:20px}.bounded-session .quiet-action{margin:10px 0;display:block}.session-receipt{text-align:center;padding:30px 12px}.receipt-check{color:#216347;background:#e6f4ed;border-radius:50%;place-items:center;width:56px;height:56px;margin:0 auto 22px;font-size:27px;display:grid}.session-receipt h2{letter-spacing:-.04em;font-size:32px}.session-receipt p{color:#526078;margin:18px 0;line-height:1.75}.spaced-review{background:#f8f8fe;border:1px solid #d3d7ed;border-radius:16px;margin-bottom:24px;padding:22px}.spaced-review article{justify-content:space-between;align-items:center;gap:20px;padding:16px 0;display:flex}.spaced-review article+article{border-top:1px solid #d8dfeb}.spaced-review h3{margin:0 0 6px;font-size:20px}.spaced-review p,.review-schedule-note{color:#546179;font-size:15px;line-height:1.7}.review-schedule-note{margin:0 0 24px}.assistance-summary{background:#f4f5fb;border-left:3px solid #6755df;margin:20px 0;padding:16px 22px}.assistance-summary p{margin:8px 0;line-height:1.7}.assistance-summary small{color:#536078;font-size:14px;line-height:1.6}.workpad-restore-notice{color:#302661;background:#e9e5ff;flex:none;justify-content:space-between;align-items:center;gap:10px;padding:10px 16px;font-size:14px;display:flex}.workpad-restore-notice button{color:#40317c;cursor:pointer;background:#fff;border:1px solid #8474c8;border-radius:7px;padding:8px 12px}@media (max-width:760px){.learning-extra>summary span{margin:4px 0 0;display:block}.extra-body{padding:16px}.bounded-session{padding:20px 16px}.spaced-review article{flex-direction:column;align-items:flex-start}.work-comparison{grid-template-columns:1fr}.workpad-restore-notice{flex-wrap:wrap}.explorer-result{padding:18px 12px;font-size:20px}}.auth-guest>span{color:#47546a;margin-bottom:10px;font-size:14px;display:block}.auth-guest .button{width:100%}.auth-guest p{color:#47546a;margin:12px 0 0;font-size:14px;line-height:1.55}.account-save-status{color:#354258;text-align:right;background:#edf2f9;padding:8px 24px;font-size:14px}.account-save-status.save-error,.storage-warning{color:#664315;background:#fff0d1;padding:12px 24px;font-size:14px;line-height:1.5}.account-save-status button,.account-save-status a{cursor:pointer;color:inherit;margin-left:14px;text-decoration:underline}@media (max-width:760px){.guest-banner{flex-direction:column;gap:12px;padding:18px}.guest-actions{min-width:0;max-width:none}.account-save-status{text-align:left}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}:root{--paper:#f5f7fb;--muted:#566174;--line:#dce3ee}.brand-mark:has(img){background:0 0;overflow:hidden}.brand-mark img{width:100%;height:100%;display:block}.brand{gap:10px;min-width:0;max-width:100%}.brand .brand-mark{background:0 0;border-radius:9px;flex:0 0 36px;width:36px;height:36px}.brand-copy{flex-direction:column;gap:3px;min-width:0;display:flex}.brand-name{letter-spacing:-.04em;white-space:nowrap;font-size:19px;font-weight:760;line-height:1.15}.brand-slogan{color:var(--muted);letter-spacing:-.015em;font-size:14px;font-weight:500;line-height:1.3}.brand--tagline .brand-mark{flex-basis:40px;width:40px;height:40px}.app-brand .brand-slogan{color:#b5c0d1}.auth-card-mark{background:0 0;display:block}@media (max-width:600px){.topbar .brand-slogan{display:none}.topbar .brand--tagline .brand-mark{flex-basis:32px;width:32px;height:32px}.topbar .brand-name{font-size:18px}}.hero{gap:clamp(35px,5vw,75px)}.hero-subtitle{max-width:550px}.demo-shell{border-color:#ccd5e4;scroll-margin-top:24px;box-shadow:0 24px 70px -24px #1f325044,inset 0 1px #fff}.demo-shell:focus-within{border-color:#6256dc}.demo-ready-note{color:#3d3b77;background:#eef2ff;border-radius:10px;margin:14px 0;padding:12px 14px;font-size:14px;line-height:1.5}.demo-topline{background:#edf2fa}.demo-topline p{font-size:13px}.step-pill{font-variant-numeric:tabular-nums}.demo-method-hint{color:#634513;background:#fff2db;border-radius:10px;padding:14px;font-size:14px;line-height:1.6}.demo-finish{justify-items:center;gap:15px;margin-top:22px;animation:.35s both signal-in;display:grid}.demo-finish>a{width:100%}.demo-finish>button{color:#485874;text-underline-offset:4px;cursor:pointer;background:0 0;border:0;font-size:14px;text-decoration:underline}.hero-actions .text-link{font-size:14px;line-height:1.5}.learning-refined{--surface-border:#dce3ee;background:#f5f7fb}.learning-refined .learning-sidebar{background:#0c1423;border-right:1px solid #253045;width:224px}.learning-refined .learning-sidebar nav button{border:1px solid #0000;min-height:49px}.learning-refined .learning-sidebar nav button.active{background:#1b2940;border-color:#354866;box-shadow:inset 3px 0 #c9ff63}.learning-refined .learning-sidebar nav button.active>span{color:#c9ff63;background:0 0}.learning-refined .learning-main{margin-left:224px;padding-inline:clamp(24px,4vw,60px)}.learning-refined .learning-header{border-bottom-color:#dce3ee;flex-wrap:wrap;min-height:96px;padding:18px 0}.learning-refined .learning-header>div:first-child{flex:220px;min-width:0}.learning-refined .learning-header h1{letter-spacing:-.04em;font-size:clamp(20px,2.2vw,28px);line-height:1.25}.learning-refined .learning-header>div:first-child>span{color:#53637a}.header-controls{flex-wrap:wrap;flex:0 auto;align-items:center;gap:14px;max-width:100%;display:flex}.learning-refined .case-switcher{flex-wrap:wrap;min-width:0}.learning-refined .case-switcher label{min-width:0;max-width:100%}.learning-refined .case-switcher select{min-width:min(210px,100%);max-width:100%}.focus-toggle{color:#263955;cursor:pointer;background:#fff;border:1px solid #c9d3e3;border-radius:10px;min-height:42px;padding:9px 14px;font-size:14px;font-weight:650}.focus-toggle[aria-pressed=true]{color:#172412;background:#d1fa83;border-color:#b4e369}.learning-refined .learning-view{padding-top:30px}.learning-refined .learning-kicker{color:#4f46b1;letter-spacing:.08em;font-size:12px}.learning-refined .lesson-hero .learning-kicker{color:#a69eff}.learning-refined .learning-footer-links{border-color:#dce3ee}.learning-refined .learning-footer-links a{color:#516078;font-size:14px}.skip-learning{z-index:500;color:#152b4b;background:#fff;border-radius:8px;padding:12px 18px;position:fixed;top:10px;left:12px;transform:translateY(-150%)}.skip-learning:focus{transform:none}.guest-compact{background:#edf3fb;border:1px solid #d9e2ef;border-radius:12px;flex-wrap:wrap;align-items:center;gap:12px;margin:18px 0 0;padding:12px 16px}.guest-summary{align-items:center;gap:12px;display:flex}.guest-summary p{color:#435470;margin:0}.guest-label{color:#264b85;font:700 11px var(--font-geist-mono),monospace;letter-spacing:.06em;background:#dae6fa;border-radius:5px;padding:4px 7px}.guest-details{color:#3b4e6e;font-size:13px}.guest-details>summary{cursor:pointer;text-underline-offset:3px}.guest-details[open]{flex-basis:100%}.guest-details>div{max-width:790px;padding:12px 0 3px}.guest-details details{margin-top:12px}.guest-details details summary{cursor:pointer}.guest-delete{color:#8b2335;cursor:pointer;background:#fff;border:1px solid #a24656;border-radius:8px;margin-top:9px;padding:9px 13px}.learning-refined .diagnose-view{grid-template-columns:minmax(0,1.23fr) minmax(260px,.77fr);gap:clamp(26px,4vw,62px)}.learning-refined .diagnose-copy{grid-area:1/2;padding-top:20px}.learning-refined .diagnose-copy h2{margin:18px 0 20px;font-size:clamp(37px,3.4vw,51px);line-height:1.04}.learning-refined .diagnose-copy h2 em,.learning-refined .view-title h2 em{color:#52667f}.learning-refined .diagnose-copy>p{color:#526177;font-size:16px;line-height:1.65}.learning-refined .intake-card{border-color:#d4deec;border-radius:20px;grid-area:1/1;padding:28px;box-shadow:0 15px 40px -25px #22395b55}.intake-card-heading{border-bottom:1px solid #e4eaf2;flex-wrap:wrap;justify-content:space-between;gap:8px;margin-bottom:14px;padding-bottom:20px;display:flex}.intake-card-heading>span:last-child{color:#63728a;font-size:12px}.learning-refined .intake-step b{font-size:16px}.learning-refined .intake-step small{color:#65728a;font-size:13px}.learning-refined .intake-privacy{color:#5b6880;font-size:13px;line-height:1.6}.unsure-shortcut{color:#5245af;text-underline-offset:3px;cursor:pointer;background:0 0;border:0;padding:9px 0;font-size:13px;text-decoration:underline}.unsure-shortcut:disabled{color:#6b7689;opacity:.65;cursor:default;text-decoration:none}.solve-roadmap{margin:27px 0;padding:0;list-style:none}.solve-roadmap li{border-bottom:1px solid #dee5ef;gap:14px;padding:16px 0;display:flex}.solve-roadmap li>span{color:#486183;width:32px;height:32px;font:600 12px var(--font-geist-mono),monospace;background:#edf2fa;border:1px solid #c9d4e5;border-radius:9px;flex-shrink:0;place-items:center;display:grid}.solve-roadmap li b{color:#203451;font-size:16px}.solve-roadmap li p{color:#586880;margin:5px 0 0;font-size:14px;line-height:1.5}.learning-refined .view-title h2{font-size:clamp(35px,4vw,55px);line-height:1.05}.learning-refined .view-title>p{color:#5b6980}.learning-refined .workspace-empty{background:#eef3fb;border-color:#d7e2f2}.learning-refined .workspace-empty h2{font-size:clamp(35px,4.5vw,58px)}.learning-refined .workspace-empty p{color:#56657c}.learning-refined .today-focus{background:linear-gradient(125deg,#0f1b2e,#162842);border:1px solid #263b5a;border-radius:20px;min-height:280px}.learning-refined .today-focus .learning-kicker{color:#c9ff63}.learning-refined .today-focus h2{max-width:680px;font-size:clamp(31px,3.5vw,48px);line-height:1.08}.path-dial{background:conic-gradient(#c9ff63 var(--path-progress),#34455e 0);border-radius:50%;flex-shrink:0;place-items:center;width:160px;height:160px;padding:8px;display:grid}.path-dial>div{text-align:center;background:#14243b;border-radius:50%;place-content:center;width:100%;height:100%;display:grid}.path-dial b{letter-spacing:-.05em;font-size:44px;line-height:1.1}.path-dial b small{color:#90a5c1;font-size:21px}.path-dial span{color:#b9c8de;margin-top:7px;font-size:12px}.learning-refined .today-real-grid article,.learning-refined .recent-cases,.learning-refined .level-stage,.learning-refined .mastery-summary article{border-color:var(--surface-border)}.learning-refined .today-real-grid p,.learning-refined .mastery-summary p{color:#5b6b81;font-size:14px}.learning-refined .today-real-grid span,.learning-refined .mastery-summary span{color:#52627a;font-size:12px}.reflection-grid{grid-template-columns:1fr 1fr;gap:16px;margin:20px 0;display:grid}.weekly-reflection,.next-insight{background:#fff;border:1px solid #d9e3f0;border-radius:18px;min-width:0;padding:25px}.weekly-reflection header{justify-content:space-between;align-items:start;gap:14px;display:flex}.weekly-reflection h3,.next-insight h3,.method-playbook h3{letter-spacing:-.04em;color:#1b2c45;margin:10px 0 0;font-size:23px;line-height:1.25}.weekly-reflection header>b{color:#233b61;font-variant-numeric:tabular-nums;font-size:32px;line-height:1}.weekly-reflection header>b small{color:#667791;margin-top:6px;font-size:12px;font-weight:500;display:block}.week-bars{grid-template-columns:repeat(7,1fr);gap:9px;margin:22px 0 12px;padding:0;list-style:none;display:grid}.week-bars li{justify-items:center;gap:4px;display:grid}.week-bar-track{background:linear-gradient(#edf2f9 1px,#0000 1px) 0 100%/100% 50%;justify-content:center;align-items:end;width:100%;height:65px;display:flex}.week-bar-track>span{background:#6158d6;border-radius:5px 5px 0 0;width:60%;max-width:30px;min-height:0;transition:height .35s}.week-bars b{font-variant-numeric:tabular-nums;color:#415575;font-size:13px}.week-bars small{color:#62738d;font-size:12px}.weekly-reflection>p{color:#66768e;margin:15px 0 0;font-size:13px;line-height:1.5}.next-insight{background:#eaf0fa;border-color:#d3dff0;flex-direction:column;display:flex}.next-insight>p{color:#425779;margin:14px 0 20px;font-size:15px;line-height:1.65}.next-insight>div{color:#435775;border-top:1px solid #ccd9ec;flex-wrap:wrap;gap:16px;margin-top:auto;padding-top:14px;font-size:13px;display:flex}.next-insight>div b{color:#233d63;margin-right:4px;font-size:19px}.next-insight>small{color:#596f8d;margin-top:15px;font-size:12px;line-height:1.5}.original-question{background:#fff;border:1px solid #dbe3ef;border-radius:12px;margin-top:16px;padding:17px 20px}.original-question summary{cursor:pointer;color:#3b4f70;font-size:14px;font-weight:650}.original-question p{overflow-wrap:anywhere;font-size:16px;line-height:1.7}.original-question small{color:#60718a;font-size:13px;line-height:1.5;display:block}.learning-refined .lesson-hero h2{font-size:clamp(34px,4vw,52px);line-height:1.12}.learning-refined .prereq-card p{color:#53647d}.practice-support{justify-content:space-between;gap:15px;margin:15px 0;display:flex}.practice-support button{color:#5648b2;cursor:pointer;text-underline-offset:4px;background:0 0;border:0;padding:7px 0;font-size:14px;text-decoration:underline}.practice-hint{color:#3f5476;background:#eff4fc;border:1px solid #d3def0;border-radius:12px;margin:15px 0;padding:18px 20px;font-size:14px;line-height:1.65;animation:.25s both signal-in}.practice-hint p{margin:5px 0 0}.learning-refined .level-options button{background:#fafbfe;border-color:#d4deee;gap:12px;padding:14px 16px;line-height:1.5}.learning-refined .level-options button.selected{background:#f0edff;border-color:#6758d9;box-shadow:inset 3px 0 #6758d9}.learning-refined .level-feedback.correct{background:#edf8d8;animation:.32s both signal-in}.completion-receipt{border-top:1px solid #c7ddaa;gap:7px;margin-top:16px;padding-top:16px;font-size:14px;display:grid}.completion-receipt p,.guided-completion{margin-top:12px!important;font-size:13px!important}.learning-refined .level-progress i{transition:width .35s}.learning-refined.is-focused .learning-sidebar,.learning-refined.is-focused .learning-mobile-nav,.learning-refined.is-focused .learning-footer-links,.learning-refined.is-focused .guest-banner,.learning-refined.is-focused .case-switcher{display:none}.learning-refined.is-focused .learning-main{max-width:1080px;margin:0 auto;padding-inline:28px}.learning-refined.is-focused .practice-layout{grid-template-columns:180px minmax(0,760px)}.review-clear{background:#f0f7e9;border:1px solid #d3e3c5;border-radius:16px;align-items:center;gap:18px;padding:24px;display:flex}.review-clear>span{color:#3a5a24;background:#d7eabf;border-radius:12px;flex-shrink:0;place-items:center;width:40px;height:40px;font-size:20px;display:grid}.review-clear h3{color:#33492a;margin:0 0 5px;font-size:18px}.review-clear p{color:#54684a;margin:0;font-size:14px;line-height:1.6}.method-playbook{border-top:1px solid #d8e1ee;margin-top:40px;padding-top:30px}.method-playbook>header{justify-content:space-between;align-items:end;gap:25px;margin-bottom:24px;display:flex}.method-playbook header p{color:#5c6e88;margin:10px 0 0;font-size:14px;line-height:1.6}.playbook-search{flex-shrink:0;width:min(330px,100%)}.playbook-search input{color:#263e60;background:#fff;border:1px solid #c7d5e8;border-radius:10px;width:100%;min-height:45px;padding:10px 14px;font-size:14px}.playbook-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.method-note{background:#fff;border:1px solid #d6dfed;border-top:3px solid #6777a1;border-radius:14px;min-width:0;padding:25px}.method-note-subject{color:#3d5783;font:600 11px var(--font-geist-mono),monospace;background:#edf2fb;border-radius:5px;padding:5px 8px}.method-note h4{letter-spacing:-.035em;color:#243956;margin:16px 0;font-size:22px;line-height:1.2}.method-note small{font:650 11px var(--font-geist-mono),monospace;letter-spacing:.06em;color:#60749b}.method-note p{color:#435776;margin:7px 0 17px;font-size:15px;line-height:1.65}.method-note-clue{background:#f1f5fb;border-radius:10px;padding:14px 16px 1px}.method-note summary{cursor:pointer;color:#5241ad;justify-content:space-between;gap:10px;padding:16px 0 0;font-size:14px;font-weight:650;list-style:none;display:flex}.method-note summary::-webkit-details-marker{display:none}.method-note details[open] summary>span{transform:rotate(45deg)}.method-note-reveal{border-top:1px solid #e2e8f3;margin-top:16px;padding-top:16px;animation:.25s both signal-in}.method-note-reveal button{color:#5141ae;cursor:pointer;background:0 0;border:0;padding:0;font-size:14px;font-weight:650}.playbook-empty{color:#506585;background:#edf2fa;border-radius:12px;padding:22px;font-size:15px}@keyframes signal-in{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}@media (max-width:1150px){.learning-refined .diagnose-view{grid-template-columns:minmax(0,1fr)}.learning-refined .intake-card{grid-area:1/1}.learning-refined .diagnose-copy{grid-area:2/1;position:static}.solve-roadmap{grid-template-columns:repeat(3,1fr);gap:18px;display:grid}.solve-roadmap li{align-items:flex-start}.learning-refined .diagnose-copy h2{font-size:36px}.reflection-grid{grid-template-columns:1fr}.header-controls{gap:8px}.method-playbook>header{flex-direction:column;align-items:start}}@media (max-width:760px){.learning-refined .learning-main{margin-left:0;padding:0 16px 100px}.learning-refined .learning-header{gap:12px;min-height:85px}.learning-refined .learning-view{padding-top:20px}.learning-refined .intake-card{padding:20px}.guest-compact{align-items:flex-start;gap:7px;padding:12px}.guest-summary{align-items:flex-start;gap:9px}.guest-summary p{font-size:13px}.guest-details{margin-left:0}.solve-roadmap{grid-template-columns:1fr;gap:0}.learning-refined .today-focus{gap:25px;padding:28px}.path-dial{width:125px;height:125px}.path-dial b{font-size:34px}.playbook-grid{grid-template-columns:1fr}.learning-refined.is-focused .learning-main{padding:0 16px 110px}.learning-refined.is-focused .practice-layout{grid-template-columns:1fr}.focus-toggle{white-space:nowrap;min-height:40px;font-size:13px}.weekly-reflection,.next-insight{padding:21px}.learning-refined .learning-mobile-nav small{font-size:11px}.learning-refined .view-title{margin:10px 0 25px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.lesson-destination{color:#465569;background:#f2f5ed;border-radius:12px;margin:18px 0;padding:14px 18px;font-size:.9rem;line-height:1.6}.original-resolution{color:#182536;background:#fff;border:1px solid #d1dcc4;border-radius:20px;margin-top:24px;padding:clamp(18px,4vw,30px)}.original-resolution h3{margin:10px 0 16px;font-size:1.35rem}.original-answer{overflow-wrap:anywhere;background:#e7f6ce;border-radius:12px;margin:18px 0;padding:18px;font-size:1.25rem}.original-resolution ol{gap:14px;padding-left:24px;line-height:1.7;display:grid}.original-check{border-top:1px solid #dce3d6;margin-top:20px;padding-top:18px;line-height:1.6}.original-resolution small{color:#566378;margin-top:16px;line-height:1.6;display:block}