/*! tailwindcss v4.2.1 | MIT License | https://tailwindcss.com */@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,::backdrop,:after,:before{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-border-style:solid;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}}}@layer theme{:host,:root{--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;--container-md:28rem;--text-sm:.875rem;--text-sm--line-height:calc(1.25 / .875);--text-2xl:1.5rem;--text-2xl--line-height:calc(2 / 1.5);--text-4xl:2.25rem;--text-4xl--line-height:calc(2.5 / 2.25);--text-6xl:3.75rem;--text-6xl--line-height:1;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4,0,.2,1);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,::backdrop,:after,:before{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}:host,html{-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;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,pre,samp{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}menu,ol,ul{list-style:none}audio,canvas,embed,iframe,img,object,svg,video{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,optgroup,select,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,::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-millisecond-field,::-webkit-datetime-edit-second-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]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.visible{visibility:visible}.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden}.absolute,.sr-only{position:absolute}.fixed{position:fixed}.static{position:static}.sticky{position:sticky}.start{inset-inline-start:var(--spacing)}.end{inset-inline-end:var(--spacing)}.block{display:block}.contents{display:contents}.flex{display:flex}.hidden{display:none}.inline{display:inline}.inline-block{display:inline-block}.inline-flex{display:inline-flex}.table{display:table}.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}.flex-wrap{flex-wrap:wrap}.border{border-style:var(--tw-border-style);border-width:1px}.text-wrap{text-wrap:wrap}.lowercase{text-transform:lowercase}.uppercase{text-transform:uppercase}.italic{font-style:italic}.blur{--tw-blur:blur(8px)}.blur,.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}}:root{--font-geist-sans:"Aptos","Helvetica Neue",Arial,sans-serif;--font-geist-mono:"SFMono-Regular",Consolas,"Liberation Mono",monospace;--ink:#14213d;--muted:#667085;--paper:#f8f7f2;--white:#fff;--teal:#087e8b;--teal-dark:#075f69;--yellow:#ffc857;--violet:#7857c8;--line:#dfe5e7;--shape-card:20px}*{box-sizing:border-box}html{scroll-behavior:smooth}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}body{background:var(--paper);color:var(--ink);font-family:var(--font-geist-sans),Arial,sans-serif;text-rendering:optimizelegibility;margin:0}a{color:inherit;text-decoration:none}.shell{width:min(1180px,100% - 40px);margin-inline:auto}.beta-banner{background:var(--ink);color:#fff;justify-content:center;align-items:center;gap:10px;min-height:38px;padding:8px 20px;font-size:13px;display:flex}.beta-banner--off{color:#26384a;background:#d9e1e8}.beta-pill{background:var(--yellow);color:#14213d;font:750 10px var(--font-geist-mono);letter-spacing:.12em;border-radius:999px;padding:3px 7px}.site-header{grid-template-columns:auto minmax(220px,1fr) auto auto;align-items:center;gap:22px;min-height:86px;display:grid}.brand{letter-spacing:-.04em;align-items:center;gap:11px;width:fit-content;font-size:20px;font-weight:780;display:inline-flex}.brand-domain>span{color:var(--teal)}.brand-mark{flex:0 0 38px;width:38px;height:32px;position:relative}.brand-mark:after,.brand-mark:before{content:"";background:var(--teal);width:18px;height:27px;position:absolute;top:2px;box-shadow:inset 0 -3px #00000014}.brand-mark:before{transform-origin:100% 100%;border-radius:4px 2px 8px 4px;left:1px;transform:skewY(23deg)}.brand-mark:after{transform-origin:0 100%;border-radius:2px 4px 4px 8px;right:1px;transform:skewY(-23deg)}.brand--stacked{text-align:center;flex-direction:column;gap:7px}.brand--stacked .brand-mark{transform:scale(1.12)}.global-search{background:0 0;border-bottom:1px solid #bcc8cc;grid-template-columns:1fr 42px;justify-self:center;width:100%;min-width:0;max-width:430px;display:grid}.global-search input{min-width:0;height:42px;color:var(--ink);font:590 13px var(--font-geist-sans);background:0 0;border:0;outline:0;padding:0 5px}.global-search input:focus{box-shadow:inset 0 -2px 0 var(--teal)}.global-search button{color:var(--teal);cursor:pointer;background:0 0;border:0;font-size:22px}.site-header nav{color:#475467;align-items:center;gap:30px;font-size:14px;font-weight:580;display:flex}.site-header nav a:hover{color:var(--teal)}.header-actions{justify-self:end;align-items:center;gap:9px;display:flex}.theme-toggle{width:43px;height:43px;color:var(--ink);cursor:pointer;background:#ffffff8c;border:1px solid #ccd5d8;border-radius:13px;font-size:18px}.theme-toggle:hover{border-color:var(--teal)}.audience-mode{color:#667085;letter-spacing:.08em;text-transform:uppercase;gap:2px;font-size:8px;font-weight:750;display:grid}.audience-mode select{background:var(--white);max-width:105px;min-height:28px;color:var(--ink);font:650 10px var(--font-geist-sans);border:1px solid #ccd5d8;border-radius:8px}.button{border:1px solid #0000;border-radius:13px;justify-content:center;align-items:center;gap:12px;min-height:44px;padding:0 19px;font-size:14px;font-weight:720;transition:transform .2s,box-shadow .2s,background .2s;display:inline-flex}.button:hover{transform:translateY(-2px)}.button--primary{background:var(--teal);color:#fff;min-height:54px;padding-inline:23px;box-shadow:0 14px 30px #087e8b33}.button--primary:hover{background:var(--teal-dark);box-shadow:0 18px 36px #087e8b47}.button--quiet{background:#ffffff8c;border-color:#ccd5d8}.text-link{border-bottom:1px solid #a6b3b7;font-size:14px;font-weight:680}.hero{grid-template-columns:1.02fr .98fr;align-items:center;gap:clamp(45px,7vw,100px);min-height:650px;padding-block:76px 96px;display:grid}.eyebrow{color:var(--teal);font:730 12px var(--font-geist-mono);letter-spacing:.12em;text-transform:uppercase;margin:0 0 16px}.hero h1,.parent-section h2,.path-intro h2,.section-heading h2{letter-spacing:-.065em;margin:0;font-size:clamp(46px,5.5vw,76px);line-height:.98}.hero h1 em{color:var(--teal);font-style:normal;position:relative}.hero h1 em:after{content:"";background:var(--yellow);opacity:.7;z-index:-1;border-radius:50%;height:8px;position:absolute;bottom:1px;left:4px;right:0}.hero-lead{color:#52616b;max-width:590px;margin:28px 0 0;font-size:clamp(17px,2vw,20px);line-height:1.65}.hero-actions{align-items:center;gap:24px;margin-top:34px;display:flex}.trust-row{color:#6b7780;flex-wrap:wrap;gap:10px 24px;margin-top:35px;font-size:12px;display:flex}.trust-row span{align-items:baseline;gap:5px;display:flex}.trust-row b{color:var(--ink);font-size:16px}.hero-visual{isolation:isolate;place-items:center;min-height:470px;display:grid;position:relative}.hero-visual:before{content:"";aspect-ratio:1;z-index:-2;background:#d5eeee;border-radius:50%;width:360px;position:absolute}.orbit{z-index:-1;border:1px solid #087e8b3d;border-radius:50%;position:absolute}.orbit--one{width:430px;height:300px;transform:rotate(19deg)}.orbit--two{width:350px;height:440px;transform:rotate(-27deg)}.book-card{background:#fff;border:7px solid #fff;border-radius:24px;grid-template-columns:.9fr 1.1fr;width:min(375px,82vw);display:grid;overflow:hidden;transform:rotate(-3deg);box-shadow:0 35px 70px #14213d33}.book-cover{background:var(--violet);color:#fff;flex-direction:column;min-height:290px;padding:30px 24px;display:flex}.book-cover span{text-transform:uppercase;letter-spacing:.12em;opacity:.8;font-size:11px}.book-cover strong{letter-spacing:-.06em;margin-block:auto;font-size:36px;line-height:.94}.book-cover small{opacity:.8;font-size:10px}.book-progress{flex-direction:column;justify-content:center;padding:28px 23px;display:flex}.book-progress>span{color:var(--teal);text-transform:uppercase;letter-spacing:.1em;font-size:10px;font-weight:750}.book-progress strong{letter-spacing:-.04em;margin-top:9px;font-size:20px;line-height:1.15}.book-progress small{color:#7a858d;font-size:10px;line-height:1.5}.progress-line{background:#e8edef;border-radius:99px;height:7px;margin:21px 0 12px;overflow:hidden}.progress-line i{background:var(--yellow);border-radius:inherit;width:35%;height:100%;display:block}.floating-tag{background:#ffffffed;border:1px solid #14213d17;border-radius:12px;padding:11px 14px;font-size:11px;font-weight:730;position:absolute;box-shadow:0 12px 30px #14213d1f}.floating-tag--video{top:50px;left:25px;transform:rotate(-8deg)}.floating-tag--audio{top:105px;right:0;transform:rotate(7deg)}.floating-tag--quiz{bottom:55px;right:25px;transform:rotate(-5deg)}.subjects-section{color:#fff;background:#14213d;padding:100px 0 110px}.section-heading{grid-template-columns:1.2fr .8fr;align-items:end;gap:70px;margin-bottom:48px;display:grid}.section-heading h2{max-width:700px;font-size:clamp(36px,4.2vw,58px)}.section-heading>p{color:#aebbd2;margin:0;line-height:1.7}.subject-grid{grid-template-columns:repeat(3,1fr);gap:14px;display:grid}.subject-card{border-radius:22px;flex-direction:column;min-height:330px;padding:25px;transition:transform .25s;display:flex;position:relative;overflow:hidden}.subject-card:hover{transform:translateY(-6px)}.subject-card:after{content:"";border:1px solid #ffffff45;border-radius:50%;width:190px;height:190px;position:absolute;bottom:-65px;right:-65px;box-shadow:0 0 0 28px #ffffff0d,0 0 0 57px #ffffff0a}.subject-card--literature{background:var(--violet)}.subject-card--history{background:#b65332}.subject-card--biology{background:#25845f}.subject-number{font:620 12px var(--font-geist-mono);opacity:.65;align-self:flex-end}.subject-card p{font:660 10px var(--font-geist-mono);text-transform:uppercase;letter-spacing:.1em;opacity:.75;margin:auto 0 8px}.subject-card h3{letter-spacing:-.05em;margin:0 0 12px;font-size:32px}.subject-card>span:not(.subject-number){color:#ffffffc7;max-width:260px;font-size:14px;line-height:1.5}.subject-card b{z-index:1;font-size:22px;position:absolute;bottom:22px;right:24px}.learning-path{grid-template-columns:.9fr 1.1fr;gap:clamp(60px,10vw,140px);padding-block:125px;display:grid}.path-intro{height:fit-content;position:sticky;top:35px}.parent-section h2,.path-intro h2{font-size:clamp(36px,4.5vw,60px)}.path-intro>p:last-child{color:#65727a;font-size:16px;line-height:1.7}.path-list{margin:0;padding:0;list-style:none}.path-list li{border-top:1px solid var(--line);grid-template-columns:50px 1fr;gap:20px;padding:28px 0;display:grid}.path-list li:last-child{border-bottom:1px solid var(--line)}.path-list li>span{color:var(--teal);font:700 12px var(--font-geist-mono)}.path-list b{letter-spacing:-.025em;font-size:20px}.path-list p{color:#6c7880;margin:8px 0 0;line-height:1.55}.parent-section{background:#d9eeec;padding-block:90px}.parent-grid{grid-template-columns:1fr 1fr;align-items:center;gap:90px;display:grid}.parent-points,.parent-points p{gap:10px;display:grid}.parent-points p{background:#ffffff7a;border:1px solid #087e8b26;border-radius:14px;grid-template-columns:28px 1fr;margin:0;padding:18px;line-height:1.5}.parent-points span{color:var(--teal);font-weight:850}.site-footer{color:#768088;grid-template-columns:1fr auto 1fr;align-items:center;gap:25px;min-height:150px;font-size:12px;display:grid}.site-footer>span{justify-self:end}.brand--footer{color:var(--ink)}.inner-shell{padding-bottom:110px}.breadcrumbs{color:#7a858d;flex-wrap:wrap;align-items:center;gap:9px;padding-top:26px;font-size:12px;display:flex}.breadcrumbs a:hover{color:var(--teal)}.breadcrumbs b{color:var(--ink);font-weight:650}.catalog-hero{grid-template-columns:1fr .75fr;align-items:end;gap:80px;padding:95px 0 105px;display:grid}.auth-copy h1,.catalog-hero h1,.content-hero h1{letter-spacing:-.075em;margin:0;font-size:clamp(58px,8vw,104px);line-height:.92}.catalog-hero>p{color:#63717a;margin:0;font-size:18px;line-height:1.7}.section-title-row{justify-content:space-between;align-items:end;gap:35px;margin-bottom:28px;display:flex}.section-title-row h2{letter-spacing:-.055em;margin:0;font-size:clamp(31px,4vw,48px)}.section-title-row>p,.section-title-row>span{color:#7a858d;max-width:410px;margin:0;font-size:12px;line-height:1.6}.school-switch{padding-bottom:105px}.school-grid{grid-template-columns:1fr 1fr;gap:15px;display:grid}.school-card{border:1px solid var(--line);border-radius:var(--shape-card);background:var(--white);flex-direction:column;min-height:260px;padding:28px;display:flex}.school-card>span{color:var(--teal);font:700 12px var(--font-geist-mono);align-self:end}.school-card h3{letter-spacing:-.045em;margin:auto 0 10px;font-size:30px}.school-card p{color:#6b7780;max-width:430px;margin:0;line-height:1.55}.school-card small{color:var(--teal);margin-top:20px;font-weight:700}.school-card--muted{background:0 0}.featured-content{padding-bottom:20px}.content-row{border:1px solid var(--line);background:var(--white);border-radius:24px;grid-template-columns:190px 1fr 50px;align-items:center;gap:40px;padding:28px;transition:transform .2s,box-shadow .2s;display:grid;position:relative}.content-row:hover{transform:translateY(-4px);box-shadow:0 20px 45px #14213d1a}.content-row--placeholder{border-style:dashed}.content-row--placeholder:hover{box-shadow:none;transform:none}.mini-cover{background:var(--violet);color:#fff;border-radius:14px;flex-direction:column;min-height:230px;padding:22px;display:flex;transform:rotate(-2deg)}.mini-cover span{text-transform:uppercase;letter-spacing:.1em;font-size:10px}.mini-cover b{letter-spacing:-.05em;margin-block:auto;font-size:30px;line-height:.95}.tag-row{flex-wrap:wrap;gap:7px;display:flex}.tag-row span{color:#5f6b73;background:#ecf0f1;border-radius:999px;padding:6px 9px;font-size:10px;font-weight:700}.tag-row .status-tag{color:#805d04;background:#fff1cc}.content-row h3{letter-spacing:-.055em;margin:17px 0 9px;font-size:38px}.content-row-copy>p{color:#65727a;max-width:680px;line-height:1.6}.module-preview{flex-wrap:wrap;gap:7px;margin-top:20px;display:flex}.module-preview span{border:1px solid var(--line);color:#65727a;border-radius:8px;padding:7px 9px;font-size:10px}.row-arrow{color:var(--teal);justify-self:end;font-size:28px}.content-template-link{color:var(--teal);margin-top:20px;display:inline-block}.catalog-status-row{grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:75px;display:grid}.catalog-status-row article{border:1px solid var(--line);border-radius:var(--shape-card);background:var(--white);grid-template-columns:auto 1fr;align-items:center;gap:4px 9px;padding:18px;display:grid}.catalog-status-row small{color:var(--muted);grid-column:2}.status-dot{background:#aab4ba;border-radius:50%;width:9px;height:9px}.status-dot--active{background:var(--teal);box-shadow:0 0 0 5px #087e8b1f}.catalog-filters{border:1px solid var(--line);border-radius:var(--shape-card);background:var(--white);grid-template-columns:1.5fr .8fr .8fr;gap:12px;padding:18px;display:grid}.catalog-filters label{color:var(--muted);text-transform:uppercase;letter-spacing:.07em;gap:7px;font-size:10px;font-weight:750;display:grid}.catalog-filters input,.catalog-filters select{border:1px solid var(--line);background:var(--paper);width:100%;min-height:48px;color:var(--ink);font:600 13px var(--font-geist-sans);border-radius:11px;padding:0 13px}.catalog-explorer .section-title-row{margin-top:70px}.catalog-result-grid{grid-template-columns:repeat(2,1fr);gap:14px;display:grid}.catalog-result-card{border:1px solid var(--line);border-radius:var(--shape-card);background:var(--white);flex-direction:column;min-height:220px;padding:25px;display:flex}.catalog-result-card small{color:var(--muted);margin-top:-5px;font-size:12px}.catalog-result-card>span{color:var(--teal);font:700 10px var(--font-geist-mono);text-transform:uppercase;letter-spacing:.08em}.catalog-result-card h3{letter-spacing:-.04em;margin:auto 0 8px;font-size:26px}.catalog-result-card p{color:var(--muted);margin:0;line-height:1.55}.catalog-result-card b{color:var(--teal);margin-top:18px;font-size:12px}.empty-state{border:1px dashed var(--line);border-radius:var(--shape-card);color:var(--muted);text-align:center;grid-column:1/-1;padding:40px}.catalog-region-note{border-left:3px solid var(--teal);color:var(--muted);margin:60px 0 0;padding:18px;font-size:12px;line-height:1.6}.library-grid{grid-template-columns:repeat(2,1fr);gap:14px;display:grid}.library-shelf{border:1px solid var(--line);border-radius:var(--shape-card);background:var(--white);flex-direction:column;min-height:230px;padding:26px;display:flex}.library-shelf>span{color:var(--teal);font-size:26px}.library-shelf h2{letter-spacing:-.04em;margin:auto 0 8px;font-size:25px}.library-shelf p{color:var(--muted);margin:0;line-height:1.55}.library-shelf small{color:#98a2a8;margin-top:18px}.content-template-hero{grid-template-columns:1fr .75fr;align-items:end;gap:70px;padding:90px 0 100px;display:grid}.content-template-hero>div>span{color:#805d04;letter-spacing:.08em;background:#fff1cc;border-radius:999px;padding:6px 9px;font-size:10px;font-weight:800;display:inline-block}.content-template-hero h1{letter-spacing:-.07em;margin:18px 0 8px;font-size:clamp(52px,7vw,92px);line-height:.93}.content-template-hero p{color:var(--muted);line-height:1.65}.content-hero{grid-template-columns:330px 1fr;align-items:center;gap:75px;padding:70px 0 100px;display:grid}.large-cover{background:var(--violet);color:#fff;border-radius:23px;flex-direction:column;min-height:440px;padding:38px 34px;display:flex;transform:rotate(-2deg);box-shadow:0 28px 60px #36256040}.large-cover span{text-transform:uppercase;letter-spacing:.12em;font-size:12px}.large-cover strong{letter-spacing:-.07em;margin-block:auto;font-size:54px;line-height:.93}.large-cover small{opacity:.75}.content-hero h1{margin-top:18px}.content-author{color:var(--teal);font-weight:700}.content-hero-copy>p:not(.content-author){color:#63717a;max-width:700px;font-size:17px;line-height:1.65}.notice-card{color:#5f511e;background:#fff8dd;border:1px solid #e5d28f;border-radius:14px;grid-template-columns:35px 1fr;gap:12px;margin-top:26px;padding:16px;display:grid}.notice-card>span{background:var(--yellow);border-radius:50%;place-items:center;width:26px;height:26px;font-weight:850;display:grid}.notice-card p{margin:0;font-size:13px;line-height:1.55}.module-section{padding-bottom:100px}.module-grid{grid-template-columns:repeat(3,1fr);gap:14px;display:grid}.module-card{border:1px solid var(--line);background:var(--white);border-radius:18px;flex-direction:column;min-height:255px;padding:22px;display:flex}.module-top{justify-content:space-between;align-items:center;display:flex}.module-icon{width:38px;height:38px;color:var(--teal);background:#e3f1f0;border-radius:11px;place-items:center;font-size:18px;display:grid}.access-pill{text-transform:uppercase;letter-spacing:.06em;border-radius:999px;padding:5px 8px;font-size:9px;font-weight:750}.access-pill--free{color:#257449;background:#e5f4eb}.access-pill--premium{color:#6c4cb0;background:#efe9fc}.module-card>small{color:#98a2a8;font:600 9px var(--font-geist-mono);text-transform:uppercase;letter-spacing:.08em;margin-top:auto}.module-card h3{letter-spacing:-.035em;margin:8px 0 7px;font-size:20px}.module-card p{color:#6b7780;margin:0;font-size:13px;line-height:1.5}.planned-label{color:var(--teal);margin-top:15px;font-size:10px;font-weight:720}.forum-teaser{color:#fff;background:#14213d;border-radius:28px;grid-template-columns:1fr .8fr;gap:70px;padding:55px;display:grid}.forum-teaser h2{letter-spacing:-.055em;margin:0;font-size:clamp(32px,4vw,48px);line-height:1.05}.forum-teaser p{color:#b4c0d1;line-height:1.65}.forum-rules{align-content:center;gap:10px;display:grid}.forum-rules span{color:#dbe4ef;border:1px solid #ffffff26;border-radius:10px;padding:13px;font-size:12px}.auth-page{background:linear-gradient(135deg,var(--paper) 55%,#d5eeee 55%);min-height:100vh}.auth-header{justify-content:space-between;align-items:center;min-height:84px;display:flex}.auth-shell{grid-template-columns:1fr 420px;align-items:center;gap:85px;width:min(1050px,100% - 40px);min-height:calc(100vh - 84px);margin-inline:auto;padding-block:55px;display:grid}.auth-copy h1{font-size:clamp(48px,6vw,78px)}.auth-copy>p:not(.eyebrow){color:#63717a;max-width:570px;font-size:17px;line-height:1.65}.auth-copy ul{color:#63717a;margin:26px 0 0;padding-left:20px;line-height:1.9}.auth-card{background:var(--white);border:1px solid #14213d1a;border-radius:23px;flex-direction:column;padding:32px;display:flex;box-shadow:0 25px 70px #14213d24}.auth-card>.beta-pill{align-self:flex-start}.auth-card h2{letter-spacing:-.05em;margin:22px 0 8px;font-size:30px}.auth-card>p{color:#6b7780;font-size:13px;line-height:1.55}.auth-card label{gap:7px;margin-top:16px;font-size:12px;font-weight:700;display:grid}.auth-card input{border:1px solid var(--line);background:var(--paper);min-height:46px;color:var(--ink);border-radius:11px;padding:0 13px}.auth-card .button{border:0;width:100%;margin:22px 0 14px}.auth-card>a{color:var(--teal);align-self:center;font-size:12px;font-weight:700}.auth-tabs{background:var(--paper);border-radius:12px;grid-template-columns:1fr 1fr;gap:5px;margin-top:22px;padding:4px;display:grid}.auth-switch,.auth-tabs button{color:var(--muted);font:700 12px var(--font-geist-sans);cursor:pointer;background:0 0;border:0}.auth-tabs button{border-radius:9px;min-height:38px}.auth-tabs button.active{background:var(--white);color:var(--ink);box-shadow:0 2px 10px #14213d14}.auth-switch{color:var(--teal);align-self:center;padding:7px}.check-label{color:var(--muted);align-items:start;line-height:1.45;grid-template-columns:20px 1fr!important}.check-label input{width:17px;height:17px;min-height:0;margin:2px 0 0}.form-message{background:#fff0ee;border-radius:9px;padding:11px 13px;color:#9a3328!important;font-size:12px!important}.account-page{background:var(--paper);min-height:100vh}.account-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;min-height:86px;display:flex}.account-header>div{align-items:center;gap:9px;display:flex}.dashboard-hero{grid-template-columns:1fr 280px;align-items:end;gap:70px;padding-block:80px 55px;display:grid}.dashboard-hero h1{letter-spacing:-.065em;margin:0;font-size:clamp(48px,7vw,82px);line-height:.95}.dashboard-hero>div>p:not(.eyebrow){max-width:630px;color:var(--muted);line-height:1.65}.dashboard-hero aside{background:var(--teal);color:#fff;border-radius:20px;flex-direction:column;justify-content:center;min-height:160px;padding:25px;display:flex}.dashboard-hero aside span{font:700 10px var(--font-geist-mono);letter-spacing:.08em}.dashboard-hero aside strong{margin:15px 0 2px;font-size:30px}.dashboard-hero aside small{opacity:.78}.dashboard-hero .birthday-card{background:var(--violet)}.account-stats{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.account-stats article{border:1px solid var(--line);background:var(--white);border-radius:15px;flex-direction:column;padding:20px;display:flex}.account-stats strong{font-size:19px}.account-stats span{color:var(--muted);margin-top:5px;font-size:12px}.account-section{padding-block:75px}.children-grid{grid-template-columns:repeat(2,1fr);gap:13px;margin-bottom:22px;display:grid}.child-card{border:1px solid var(--line);background:var(--white);border-radius:17px;padding:24px}.child-card>span{color:var(--teal);font:700 11px var(--font-geist-mono)}.child-card h3{margin:20px 0 5px;font-size:24px}.child-card p{color:var(--muted)}.child-card small{color:#88939a}.child-learning-stats{grid-template-columns:1fr 1fr;gap:6px;margin:14px 0;display:grid}.child-learning-stats span{background:var(--paper);color:var(--muted);border-radius:7px;padding:7px;font-size:9px}.child-learning-stats b{color:var(--ink)}.profile-controls{border-top:1px solid var(--line);margin-top:18px;padding-top:14px}.profile-controls summary{color:var(--teal);cursor:pointer;font-size:11px;font-weight:750}.profile-control-actions{gap:7px;margin-top:12px;display:flex}.danger-zone button,.profile-control-actions button{border:1px solid var(--line);background:var(--paper);color:var(--ink);cursor:pointer;border-radius:8px;padding:8px 10px;font-size:10px;font-weight:700}.danger-zone{background:#fff4f1;border-radius:9px;margin-top:11px;padding:10px}.danger-zone summary{color:#a13b2f}.danger-zone p{color:#7d5954;font-size:10px;line-height:1.5}.control-message{color:var(--teal);font-size:10px}.profile-form{border:1px solid var(--line);background:var(--white);border-radius:20px;margin-top:25px;padding:28px}.profile-form .section-title-row{margin:0 0 22px}.form-grid{grid-template-columns:repeat(2,1fr);gap:15px;display:grid}.form-grid label{color:var(--ink);gap:7px;font-size:12px;font-weight:700;display:grid}.form-grid label small{color:var(--teal);font-weight:600}.form-grid input,.form-grid select{border:1px solid var(--line);background:var(--paper);min-height:46px;color:var(--ink);border-radius:10px;padding:0 12px}.profile-form>.button{margin-top:20px}.privacy-panel{color:#fff;background:#14213d;border-radius:22px;grid-template-columns:.75fr 1fr;gap:70px;margin-bottom:80px;padding:40px;display:grid}.privacy-panel span{color:#68d2cd;font:700 10px var(--font-geist-mono);letter-spacing:.08em}.privacy-panel h2{margin:10px 0 0;font-size:33px}.privacy-panel p{color:#bac4d2;margin:0;line-height:1.7}.learning-actions{gap:10px;padding-bottom:65px;display:flex}.review-notice,.student-stats{margin-bottom:30px}.review-notice{border-left:4px solid var(--yellow);color:#5f511e;background:#fff8dd;border-radius:0 14px 14px 0;gap:6px;padding:20px 24px;display:grid}.review-notice span{font:700 10px var(--font-geist-mono);text-transform:uppercase}.review-notice p{margin:0;font-size:12px}.annual-summary{border:1px solid var(--line);background:var(--white);border-radius:18px;grid-template-columns:.7fr 1fr;gap:40px;margin-bottom:30px;padding:28px;display:grid}.annual-summary>div:first-child>span{color:var(--teal);font:700 10px var(--font-geist-mono);text-transform:uppercase}.annual-summary h2{margin:10px 0 0}.annual-summary>div:last-child{grid-template-columns:1fr 1fr;gap:8px;display:grid}.annual-summary article{background:var(--paper);border-radius:10px;padding:12px;display:grid}.annual-summary article strong{font-size:20px}.annual-summary article span{color:var(--muted);font-size:9px}.learning-lab-hero{padding-block:75px 20px}.learning-lab-hero h1{letter-spacing:-.07em;margin:0;font-size:clamp(50px,8vw,92px);line-height:.95}.learning-lab-hero>p:not(.eyebrow){max-width:720px;color:var(--muted);line-height:1.65}.learning-preferences{border:1px solid var(--line);background:var(--white);border-radius:12px;max-width:720px;margin-top:22px;padding:15px}.learning-preferences summary{color:var(--teal);cursor:pointer;font-weight:750}.learning-preferences>div{grid-template-columns:repeat(2,1fr);gap:12px;margin-top:14px;display:grid}.learning-preferences label{gap:6px;font-size:11px;display:grid}.learning-preferences select{border:1px solid var(--line);border-radius:8px;min-height:40px;padding:0 9px}.learning-preferences button{background:var(--teal);color:#fff;cursor:pointer;border:0;border-radius:8px;min-height:40px;font-weight:750}.learning-preferences small{color:var(--teal);align-self:center}.quiz-levels{grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:22px;display:grid}.quiz-levels button{border:1px solid var(--line);background:var(--white);color:var(--ink);text-align:left;cursor:pointer;border-radius:12px;gap:4px;padding:15px;display:grid}.quiz-levels button.active{border-color:var(--teal);box-shadow:0 0 0 3px #087e8b1a}.quiz-levels span{font-weight:800}.quiz-levels small{color:var(--muted)}.question-stack{gap:15px;display:grid}.question-card{border:1px solid var(--line);background:var(--white);border-radius:18px;padding:28px}.question-card.correct{border-color:#74b58f}.question-card.incorrect{border-color:#d38b82}.question-card>small{color:var(--teal);font:700 9px var(--font-geist-mono);text-transform:uppercase}.question-card h2{margin:12px 0 20px;font-size:23px}.answer-option{border:1px solid var(--line);cursor:pointer;border-radius:10px;align-items:center;gap:10px;margin-top:8px;padding:12px;display:flex}.short-answer{color:var(--muted);gap:7px;font-size:11px;display:grid}.matching-grid select,.short-answer input{border:1px solid var(--line);background:var(--paper);min-height:44px;color:var(--ink);border-radius:9px;padding:0 11px}.matching-grid{gap:11px;display:grid}.matching-grid label{grid-template-columns:1fr 1.5fr;align-items:center;gap:12px;display:grid}.ordering-list{gap:8px;padding:0;list-style:none;display:grid}.ordering-list li{border:1px solid var(--line);border-radius:9px;justify-content:space-between;align-items:center;padding:11px;display:flex}.ordering-list button{border:1px solid var(--line);background:var(--paper);cursor:pointer;border-radius:7px;width:33px;height:33px;margin-left:4px}.answer-feedback{background:var(--paper);color:var(--muted);border-radius:9px;margin:18px 0 0;padding:13px;font-size:12px}.submit-quiz{border:0;justify-self:start}.quiz-result{background:var(--teal);color:#fff;border-radius:18px;gap:7px;margin-top:20px;padding:28px;display:grid}.quiz-result>span{font:700 10px var(--font-geist-mono)}.quiz-result>strong{font-size:48px}.quiz-result p{margin:0}.quiz-result small{opacity:.8}.lab-message,.locked-quiz{border:1px dashed var(--line);color:var(--muted);border-radius:14px;padding:22px}.forum-hub{grid-template-columns:270px 1fr;gap:35px;min-height:650px;display:grid}.forum-sidebar{flex-direction:column;gap:14px;display:flex}.forum-safety-note{color:#fff;background:#14213d;border-radius:14px;padding:17px}.forum-safety-note p{color:#b8c3d0;font-size:11px;line-height:1.5}.forum-safety-note a{color:#68d2cd;font-size:11px;font-weight:750}.forum-sidebar nav{gap:7px;display:grid}.forum-sidebar nav button{border:1px solid var(--line);background:var(--white);color:var(--ink);text-align:left;cursor:pointer;border-radius:11px;gap:4px;padding:13px;display:grid}.forum-sidebar nav button.active{border-color:var(--teal)}.forum-sidebar nav span{color:var(--teal);font:700 9px var(--font-geist-mono);text-transform:uppercase}.forum-rules-box{border:1px solid var(--line);background:var(--white);border-radius:11px;padding:13px}.forum-rules-box summary{color:var(--teal);cursor:pointer;font-size:11px;font-weight:750}.forum-rules-box p{color:var(--muted);font-size:10px;line-height:1.5}.forum-main{min-width:0}.forum-heading h1,.forum-welcome h1{letter-spacing:-.06em;margin:7px 0;font-size:clamp(38px,6vw,68px);line-height:.98}.forum-heading>p,.forum-welcome>p:not(.eyebrow){color:var(--muted);line-height:1.65}.forum-heading>button{color:var(--teal);cursor:pointer;background:0 0;border:0}.forum-heading>span{color:var(--teal);font:700 9px var(--font-geist-mono);margin-top:25px;display:block}.post-list,.thread-list{gap:10px;margin-top:25px;display:grid}.thread-list .thread-row{border:1px solid var(--line);background:var(--white);width:100%;color:var(--ink);text-align:left;cursor:pointer;border-radius:14px;grid-template-columns:1fr auto;gap:20px;padding:20px;display:grid}.thread-list h2{margin:8px 0}.thread-list p{color:var(--muted);margin:0;font-size:12px;line-height:1.5}.thread-list aside{color:var(--muted);grid-template-columns:auto auto;align-content:center;gap:3px 7px;font-size:10px;display:grid}.author-badge{color:var(--teal);font:700 9px var(--font-geist-mono)}.forum-compose{border:1px solid var(--line);background:var(--white);border-radius:15px;gap:10px;margin-top:25px;padding:22px;display:grid}.forum-compose h2{margin:0}.forum-compose input,.forum-compose select,.forum-compose textarea,.post-list textarea{border:1px solid var(--line);background:var(--paper);min-height:44px;color:var(--ink);border-radius:9px;padding:11px}.forum-compose textarea,.post-list textarea{resize:vertical;min-height:120px}.forum-compose .button{border:0;justify-self:start}.post-list footer,.thread-actions{flex-wrap:wrap;gap:6px;margin-top:12px;display:flex}.post-list button,.thread-actions button{border:1px solid var(--line);background:var(--paper);color:var(--ink);cursor:pointer;border-radius:7px;padding:7px 9px;font-size:10px}.post-list article{border:1px solid var(--line);background:var(--white);border-radius:14px;padding:20px}.post-list article.nested{border-left:3px solid var(--teal);margin-left:35px}.post-list article.accepted{border-color:#74b58f}.post-list header{color:var(--teal);font:700 10px var(--font-geist-mono);justify-content:space-between;display:flex}.post-list p{line-height:1.6}.highlight-label{color:#247449;background:#e4f3e9;border-radius:999px;margin:12px 6px 0 0;padding:5px 7px;font-size:9px;display:inline-block}.post-list details{margin-top:10px}.post-list details summary{color:var(--teal);cursor:pointer;font-size:10px}.post-list details form{gap:7px;margin-top:7px;display:grid}.forum-message{color:#65551f;background:#fff8dd;border-radius:9px;margin-top:18px;padding:12px}.notification-list,.safety-grid{grid-template-columns:repeat(2,1fr);gap:13px;padding-bottom:70px;display:grid}.notification-list article,.safety-grid article{border:1px solid var(--line);background:var(--white);border-radius:15px;padding:24px}.notification-list p,.safety-grid p{color:var(--muted);line-height:1.6}.notification-appeal{border:1px solid var(--line);color:var(--ink);cursor:pointer;background:0 0;border-radius:999px;margin-top:14px;padding:8px 13px;font-weight:700;display:block}.notification-appeal:disabled{cursor:default;opacity:.65}.essay-prompt-list{gap:18px;display:grid}.essay-intro{max-width:720px;margin-bottom:12px}.essay-intro h1{font-family:var(--font-display);margin:8px 0 18px;font-size:clamp(2.2rem,5vw,4.5rem);line-height:.98}.essay-prompt-list>article{border:1px solid var(--line);background:var(--white);border-radius:18px;padding:26px}.essay-prompt-list>article>span,.essay-workshop>aside>span{color:var(--violet);text-transform:uppercase;letter-spacing:.12em;font-size:.76rem;font-weight:800}.essay-prompt-list article h2{margin:8px 0}.essay-prompt-list article>div{justify-content:space-between;align-items:center;gap:20px;margin-top:20px;display:flex}.essay-workshop{grid-template-columns:minmax(260px,.7fr) minmax(0,1.5fr);gap:22px;display:grid}.essay-workshop>aside{border:1px solid var(--line);background:var(--paper);border-radius:18px;align-self:start;padding:24px;position:sticky;top:18px}.essay-workshop>aside h2{margin:8px 0}.essay-workshop details{border-top:1px solid var(--line);margin-top:16px;padding-top:14px}.essay-workshop summary{cursor:pointer;font-weight:800}.essay-workshop li{color:var(--muted);margin:8px 0;line-height:1.45}.neutral-tracking{background:var(--violet);border-radius:13px;margin-top:18px;padding:15px}@supports (color:color-mix(in lab,red,red)){.neutral-tracking{background:color-mix(in srgb,var(--violet) 8%,transparent)}}.neutral-tracking p{color:var(--muted);margin-bottom:0;font-size:.87rem;line-height:1.5}.essay-workshop>section{border:1px solid var(--line);background:var(--white);border-radius:18px;min-width:0;overflow:hidden}.essay-tabs{border-bottom:1px solid var(--line);background:var(--paper);display:flex}.essay-tabs button{color:var(--muted);cursor:pointer;background:0 0;border:0;border-bottom:3px solid #0000;flex:1;padding:16px 10px;font-weight:800}.essay-tabs button.active{border-color:var(--violet);color:var(--ink)}.essay-editor-meta{color:var(--muted);border-bottom:1px solid var(--line);flex-wrap:wrap;gap:18px;padding:13px 20px;font-size:.82rem;display:flex}.essay-workshop textarea{resize:vertical;background:var(--white);width:100%;min-height:540px;color:var(--ink);font:1.05rem/1.8 var(--font-geist-sans);border:0;outline:0;padding:28px}.essay-workshop>section>footer{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:18px;padding:16px 20px;display:flex}.essay-workshop>section>footer p{color:var(--muted);margin:0;font-size:.86rem}.essay-workshop>section>footer div{gap:10px;display:flex}.essay-history{margin:0 20px 20px}.essay-history p{border-bottom:1px solid var(--line);justify-content:space-between;gap:20px;margin:0;padding:9px 0;display:flex}.essay-history span{color:var(--muted);font-size:.82rem}.parent-essay-list{gap:22px;padding-bottom:80px;display:grid}.parent-essay-list>article{border:1px solid var(--line);background:var(--white);border-radius:18px;padding:26px}.parent-essay-list>article>header{justify-content:space-between;gap:28px;display:flex}.parent-essay-list header>aside{background:var(--paper);border-radius:13px;align-content:start;gap:5px;min-width:230px;padding:16px;display:grid}.parent-essay-list header span{color:var(--violet);font-weight:800}.parent-essay-stages{grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px;display:grid}.parent-essay-stages section{border:1px solid var(--line);background:var(--paper);border-radius:13px;padding:18px}.parent-essay-stages p{white-space:pre-wrap;color:var(--muted);line-height:1.6}.admin-split,.admin-tools-grid{grid-template-columns:repeat(2,1fr);gap:18px;margin-bottom:32px;display:grid}.admin-split>*,.admin-tools-grid>*{min-width:0}.admin-tool-card{border:1px solid var(--line);background:var(--white);border-radius:18px;align-content:start;gap:12px;padding:24px;display:grid}.admin-tool-card>span{color:var(--teal);letter-spacing:.12em;font-size:.72rem;font-weight:850}.admin-tool-card h2,.admin-tool-card p{margin:0}.admin-tool-card p{color:var(--muted);line-height:1.5}.admin-tool-card input,.admin-tool-card select,.admin-tool-card textarea,.content-feedback select,.content-feedback textarea{border:1px solid var(--line);background:var(--paper);width:100%;color:var(--ink);border-radius:10px;padding:12px}.admin-tool-card>button{background:var(--ink);color:#fff;cursor:pointer;border:0;border-radius:10px;padding:11px 14px;font-weight:800}.admin-manual-editors{border:1px solid var(--line);border-radius:16px;margin:20px 0 36px;padding:18px}.admin-manual-editors>summary{cursor:pointer;font-weight:850}.admin-manual-editors .admin-tools-grid{margin:18px 0 0}.admin-content-list,.flag-list,.role-list{gap:11px;display:grid}.admin-content-list>article{border:1px solid var(--line);background:var(--white);border-radius:15px;padding:20px}.admin-content-list article>header{justify-content:space-between;gap:22px;display:flex}.admin-content-list header span{color:var(--teal);text-transform:uppercase;font-size:.75rem;font-weight:800}.admin-content-list header aside{align-content:start;justify-items:end;gap:4px;display:grid}.review-actions{flex-wrap:wrap;gap:8px;margin-top:16px;display:flex}.flag-list button,.review-actions a,.review-actions button,.role-list button{border:1px solid var(--line);color:var(--ink);cursor:pointer;background:0 0;border-radius:999px;padding:8px 12px;font-weight:700}.review-actions button.approved{border-color:var(--teal);color:var(--teal)}.review-actions button:disabled{cursor:default;opacity:.45}.flag-list article,.role-list article{border:1px solid var(--line);background:var(--white);border-radius:12px;justify-content:space-between;gap:15px;padding:14px;display:flex}.flag-list article>div,.role-list article{align-items:flex-start}.flag-list small,.role-list small{min-width:0;color:var(--muted);overflow-wrap:anywhere}.flag-list article,.flag-list article>div,.role-list article{min-width:0}.published-content-modules{gap:18px;padding-block:20px 60px;display:grid}.published-content-modules>article{border:1px solid var(--line);background:var(--white);border-radius:18px;padding:28px}.published-content-modules header{align-items:flex-start;gap:16px;display:flex}.published-content-modules header>span{background:var(--teal);color:#fff;border-radius:12px;place-items:center;width:38px;height:38px;font-weight:850;display:grid}.published-content-modules h2{margin:0}.published-content-modules>article>p{color:var(--muted)}.imported-prose{white-space:pre-wrap;margin-top:18px;line-height:1.75}.imported-json{background:var(--paper);border-radius:12px;padding:18px;font-size:.82rem;overflow:auto}.material-release-panel{gap:14px;margin-top:20px;display:grid}.material-current{background:var(--paper);border-radius:15px;padding:20px}.material-history article>header,.material-release-heading{justify-content:space-between;align-items:flex-start;gap:22px;display:flex}.material-release-heading span{color:var(--teal);letter-spacing:.08em;font-size:.72rem;font-weight:850}.material-release-heading h3{margin:5px 0 0}.material-history time,.material-release-heading time{color:var(--muted);white-space:nowrap;font-size:.82rem}.material-current>p,.material-history article>p{color:var(--muted);line-height:1.55}.material-assets{gap:13px;margin-top:15px;display:grid}.material-player{background:#111;border-radius:12px;width:100%;max-height:min(68vh,680px);display:block}.material-player--compact{max-height:420px}.material-audio{gap:8px;display:grid}.material-audio audio{width:100%}.material-file-link{border:1px solid var(--line);color:var(--ink);border-radius:10px;padding:12px 14px;font-weight:750;display:block}.material-history{border:1px solid var(--line);border-radius:13px;overflow:hidden}.material-history>summary{cursor:pointer;padding:14px 16px;font-weight:850}.material-history>div{border-top:1px solid var(--line)}.material-history article{border-bottom:1px solid var(--line);padding:16px}.material-history article:last-child{border-bottom:0}.material-history article.is-current{background:var(--teal)}@supports (color:color-mix(in lab,red,red)){.material-history article.is-current{background:color-mix(in srgb,var(--teal) 7%,transparent)}}.material-history article header div{gap:4px;display:grid}.material-history article header span{color:var(--teal);font-size:.72rem;font-weight:800}.material-history article details{margin-top:12px}.material-history article details>summary{cursor:pointer;color:var(--teal);font-weight:800}.protected-video{gap:10px;display:grid}.protected-video iframe{aspect-ratio:16/9;background:#0b1220;border:0;width:100%}.protected-video .button{justify-self:start}.protected-video small{color:var(--muted);line-height:1.5}.protected-video--compact iframe{max-width:720px}.canonical-mental-map{border:1px solid var(--line);background:var(--paper);border-radius:15px;gap:18px;margin-top:20px;padding:20px;display:grid}.canonical-mental-map>div:first-child>span{color:var(--teal);letter-spacing:.08em;font-size:.72rem;font-weight:850}.canonical-mental-map h3{margin:5px 0}.canonical-mental-map>div:first-child>p{color:var(--muted);margin:0;line-height:1.55}.mental-map-node-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.mental-map-node-grid article{border:1px solid var(--line);background:var(--white);border-radius:12px;min-width:0;padding:16px}.mental-map-node-grid small{color:var(--teal);text-transform:uppercase;font-weight:800}.mental-map-node-grid h4{margin:5px 0;font-size:1.08rem}.mental-map-node-grid li,.mental-map-node-grid p{color:var(--muted);overflow-wrap:anywhere;line-height:1.5}.mental-map-node-grid ul{gap:6px;margin:12px 0 0;padding-left:18px;display:grid}.content-feedback{border:1px solid var(--line);background:var(--white);border-radius:16px;margin-bottom:80px;padding:22px}.content-feedback form{gap:11px;margin-top:16px;display:grid}.safety-grid li{color:var(--muted);margin-top:7px}.moderation-dashboard{gap:55px;display:grid}.moderation-metrics{grid-template-columns:repeat(4,1fr);gap:9px;display:grid}.moderation-metrics article{border:1px solid var(--line);background:var(--white);border-radius:12px;padding:18px;display:grid}.moderation-metrics strong{font-size:27px}.moderation-metrics span{color:var(--muted);font-size:10px}.moderation-list{gap:10px;display:grid}.moderation-list article{border:1px solid var(--line);background:var(--white);border-radius:13px;padding:20px}.moderation-list header{color:#a13b2f;font:700 10px var(--font-geist-mono);text-transform:uppercase;justify-content:space-between;display:flex}.moderation-list p{color:var(--muted);line-height:1.55}.moderation-list footer{flex-wrap:wrap;gap:7px;display:flex}.moderation-list button{border:1px solid var(--line);background:var(--paper);cursor:pointer;border-radius:7px;padding:8px 10px;font-size:10px}.security-panel{border:1px solid var(--line);background:var(--white);border-radius:20px;grid-template-columns:1fr auto;align-items:center;gap:40px;margin-bottom:30px;padding:30px;display:grid}.security-panel span{color:var(--teal);font:700 10px var(--font-geist-mono)}.security-panel h2{margin:8px 0}.security-panel p{color:var(--muted);margin:0}.security-actions{text-align:center;flex-direction:column;align-items:stretch;gap:7px;display:flex}.security-actions small{color:var(--teal)}.two-factor-box{gap:7px;min-width:270px;display:grid}.two-factor-box>span{color:var(--teal);font-size:12px}.two-factor-box button{border:1px solid var(--line);background:var(--paper);min-height:38px;color:var(--ink);cursor:pointer;border-radius:9px;padding:0 12px;font-weight:700}.two-factor-box small{max-width:330px;color:var(--teal);line-height:1.5}.two-factor-verify{gap:7px;display:grid}.two-factor-box details code,.two-factor-verify code{overflow-wrap:anywhere;max-width:360px;color:var(--muted);font-size:9px}.subscription-preview{color:#fff;background:#14213d;border-radius:25px;grid-template-columns:.8fr 1fr;gap:60px;padding:45px;display:grid}.subscription-copy>span{color:#68d2cd;font:700 10px var(--font-geist-mono);letter-spacing:.08em;text-transform:uppercase}.subscription-copy h2{letter-spacing:-.05em;margin:15px 0;font-size:38px}.subscription-copy p{color:#b8c3d0;line-height:1.65}.price-calculator{color:#14213d;background:#fff;border-radius:18px;padding:25px}.price-toggle{background:var(--paper);border-radius:10px;grid-template-columns:1fr 1fr;padding:4px;display:grid}.price-toggle button{cursor:pointer;background:0 0;border:0;border-radius:8px;min-height:38px;font-weight:750}.price-toggle button.active{color:var(--teal);background:#fff;box-shadow:0 2px 10px #14213d14}.price-calculator label{gap:6px;margin:18px 0;font-size:11px;font-weight:750;display:grid}.price-calculator select{border:1px solid var(--line);border-radius:9px;min-height:42px;padding:0 10px}.price-calculator ol{margin:0;padding:0;list-style:none}.price-calculator li,.price-total{border-bottom:1px solid var(--line);justify-content:space-between;padding:10px 0;font-size:12px;display:flex}.price-total{border:0;margin-top:8px;font-size:17px}.price-calculator>.button{border:0;width:100%;margin-top:15px}.price-calculator>small{color:var(--teal);margin-top:10px;line-height:1.5;display:block}.invoice-empty{color:var(--muted);margin:9px 0 0;font-size:10px}.beta-admin-card{border:1px solid var(--line);background:var(--white);border-radius:22px;gap:13px;max-width:650px;padding:36px;display:grid}.beta-admin-card>span{color:var(--teal);font:700 10px var(--font-geist-mono)}.beta-admin-card>strong{font-size:30px}.beta-admin-card>p{color:var(--muted);line-height:1.6}.beta-admin-card>.button{border:0;justify-self:start}.beta-admin-card>small{color:var(--teal)}.error-shell{align-content:center;justify-items:start;max-width:760px;min-height:100vh;display:grid}.error-shell h1{letter-spacing:-.06em;margin:0;font-size:clamp(42px,7vw,76px);line-height:1}.error-shell>p:not(.eyebrow){color:var(--muted);line-height:1.65}:root[data-audience=young]{--shape-card:27px;--violet:#8467d7}:root[data-audience=young] .hero h1{line-height:1.03}:root[data-audience=young] .module-card,:root[data-audience=young] .subject-card{border-radius:28px}:root[data-audience=secondary]{--shape-card:14px;--violet:#6548a7;--yellow:#f3bd4f}:root[data-audience=secondary] .hero h1{letter-spacing:-.055em}:root[data-audience=secondary] .module-card,:root[data-audience=secondary] .subject-card{border-radius:14px}.leaderboard-controls{grid-template-columns:1.35fr .65fr;gap:48px;padding-block:58px 34px;display:grid}.leaderboard-controls h1{letter-spacing:-.055em;margin:7px 0 12px;font-size:clamp(38px,6vw,68px)}.leaderboard-controls p{color:var(--muted);max-width:650px}.leaderboard-controls>div:last-child{align-content:end;gap:13px;display:grid}.leaderboard-controls label{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;gap:6px;font-size:12px;font-weight:750;display:grid}.leaderboard-controls select{border:1px solid var(--line);background:var(--white);min-height:46px;color:var(--ink);border-radius:12px;padding:0 13px}.badge-section,.leaderboard-board,.leaderboard-notice,.scoring-explainer{background:var(--white);border:1px solid var(--line);border-radius:22px;margin-block:22px;padding:30px}.badge-section h2,.leaderboard-notice h2,.scoring-explainer h2{margin:5px 0 10px}.leaderboard-board header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:end;gap:20px;padding-bottom:18px;display:flex}.leaderboard-board header h2{text-transform:capitalize;margin:4px 0 0}.leaderboard-board header p b{color:var(--teal);font-size:24px}.leaderboard-board ol{margin:0;padding:0;list-style:none}.leaderboard-board li{border-bottom:1px solid var(--line);grid-template-columns:42px 1fr auto;align-items:center;gap:14px;min-height:55px;display:grid}.leaderboard-board li>strong{color:var(--teal)}.leaderboard-board li.is-viewer{background:var(--teal);margin-inline:-12px;padding-inline:12px}@supports (color:color-mix(in lab,red,red)){.leaderboard-board li.is-viewer{background:color-mix(in srgb,var(--teal) 10%,transparent)}}.leaderboard-board li.is-viewer{border-radius:10px}.badge-section>span,.leaderboard-board header span,.scoring-explainer span{color:var(--teal);font:750 11px var(--font-geist-mono);letter-spacing:.1em;text-transform:uppercase}.badge-grid{grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px;display:grid}.badge-grid article{border:1px solid var(--line);border-radius:16px;align-items:center;gap:14px;padding:18px;display:flex}.badge-grid i{background:var(--yellow);color:#253039;border-radius:50%;flex:0 0 47px;place-items:center;height:47px;font-style:normal;font-weight:850;display:grid}.badge-grid h3,.badge-grid p{margin:0}.badge-grid p{color:var(--muted);margin-top:4px;font-size:13px}.scoring-explainer{grid-template-columns:.7fr 1.3fr;gap:35px;margin-bottom:70px;display:grid}.scoring-explainer ul{color:var(--muted);gap:12px;margin:0;display:grid}.control-help{color:var(--muted);font-size:12px}.teacher-layout{grid-template-columns:280px 1fr;gap:28px;display:grid}.teacher-layout>aside{flex-direction:column;gap:8px;display:flex}.teacher-layout>aside button{text-align:left;border:1px solid var(--line);background:var(--white);color:var(--ink);border-radius:12px;gap:4px;padding:15px;display:grid}.teacher-layout>aside small{color:var(--muted)}.teacher-layout>section{min-width:0}.admin-card{border:1px solid var(--line);background:var(--white);border-radius:18px;align-content:start;gap:12px;padding:24px;display:grid}.admin-card h2,.admin-card h3,.admin-card p{margin:0}.admin-card input,.admin-card select,.admin-card textarea{border:1px solid var(--line);background:var(--paper);width:100%;min-height:44px;color:var(--ink);border-radius:10px;padding:10px 12px}.admin-card textarea{resize:vertical;min-height:100px}.admin-card button{background:var(--teal);color:#fff;border:0;border-radius:10px;justify-self:start;min-height:42px;padding:0 16px;font-weight:750}.admin-card button:disabled{cursor:not-allowed;opacity:.45}.admin-card .button-danger{background:#9a3328}.admin-card article{border-bottom:1px solid var(--line);padding-block:12px}.admin-card code{overflow-wrap:anywhere;color:var(--teal)}.token-output{overflow-wrap:anywhere;background:var(--paper);font-family:var(--font-geist-mono);border-radius:10px;padding:12px;font-size:12px}.beta-cohort-list>article{gap:16px;display:grid}.beta-cohort-list>article>header{justify-content:space-between;align-items:flex-start;gap:18px;display:flex}.readiness-state{color:#9a3328;font:750 9px var(--font-geist-mono);letter-spacing:.07em;background:#fff0ee;border-radius:999px;flex:none;padding:6px 9px}.readiness-state.is-ready{color:#247449;background:#e4f3e9}.beta-status-actions{flex-wrap:wrap;gap:8px;display:flex}.readiness-attestations,.readiness-panel{border:1px solid var(--line);background:var(--paper);border-radius:12px;padding:14px}.readiness-attestations>summary,.readiness-panel>summary{color:var(--teal);cursor:pointer;font-size:12px;font-weight:800}.readiness-panel ul{gap:7px;margin:12px 0 0;padding:0;list-style:none;display:grid}.readiness-panel li{background:#fff0ee;border-radius:9px;grid-template-columns:25px 1fr auto;align-items:start;gap:10px;padding:10px;display:grid}.readiness-panel li.is-ready{background:#e4f3e9}.readiness-panel li>span{color:#fff;background:#9a3328;border-radius:50%;place-items:center;width:23px;height:23px;font-weight:850;display:grid}.readiness-panel li.is-ready>span{background:#247449}.readiness-panel li div{gap:3px;min-width:0;display:grid}.readiness-panel li small{color:var(--muted);overflow-wrap:anywhere}.readiness-panel li em{color:var(--muted);text-transform:uppercase;font-size:9px;font-style:normal}.readiness-attestations{gap:12px;display:grid}.readiness-attestation{grid-template-columns:1fr auto;align-items:end;gap:10px;padding-top:11px;display:grid}.readiness-attestation label{gap:6px;font-size:11px;font-weight:750;display:grid}.readiness-attestation>div{gap:6px;display:flex}.beta-checkpoint-list{color:var(--muted);gap:4px;display:grid}.recovery-form{gap:12px;max-width:640px;display:grid}.recovery-form h2,.recovery-form p{margin:0}.recovery-form label{gap:7px;font-weight:700;display:grid}.recovery-form input{border:1px solid var(--line);background:var(--paper);min-height:46px;color:var(--ink);border-radius:10px;padding:10px 12px}.policy-page{max-width:850px;padding-block:72px}.policy-page h1{letter-spacing:-.05em;max-width:760px;font-size:clamp(42px,7vw,76px);line-height:.96}.policy-page h2{margin-top:38px}.policy-page p{color:var(--muted);line-height:1.75}.policy-page .lead{color:var(--ink);font-size:clamp(18px,2.2vw,24px)}@media (max-width:900px){.site-header{grid-template-columns:auto minmax(180px,1fr) auto}.site-header nav{display:none}.hero{grid-template-columns:1fr;padding-top:55px}.hero-copy{max-width:720px}.hero-visual{min-height:430px}.auth-shell,.catalog-hero,.content-hero,.content-template-hero,.dashboard-hero,.forum-teaser,.learning-path,.parent-grid,.privacy-panel,.section-heading{grid-template-columns:1fr;gap:45px}.catalog-filters{grid-template-columns:1fr}.module-grid{grid-template-columns:repeat(2,1fr)}.auth-page{background:var(--paper)}.account-stats,.children-grid,.security-panel,.subscription-preview{grid-template-columns:1fr}.subscription-preview{gap:30px;padding:28px}.quiz-levels{grid-template-columns:repeat(2,1fr)}.annual-summary,.forum-hub,.learning-preferences>div,.matching-grid label{grid-template-columns:1fr}.forum-sidebar nav{grid-template-columns:repeat(2,1fr)}.notification-list,.safety-grid{grid-template-columns:1fr}.moderation-metrics{grid-template-columns:repeat(2,1fr)}.essay-workshop{grid-template-columns:1fr}.essay-workshop>aside{position:static}.essay-workshop textarea{min-height:430px;padding:20px}.essay-workshop>section>footer,.parent-essay-list>article>header{flex-direction:column;align-items:stretch}.essay-workshop>section>footer div{flex-wrap:wrap}.admin-split,.admin-tools-grid,.parent-essay-stages{grid-template-columns:1fr}.admin-content-list article>header{flex-direction:column}.admin-content-list header aside{justify-items:start}.leaderboard-controls,.scoring-explainer,.teacher-layout{grid-template-columns:1fr}.badge-grid{grid-template-columns:1fr 1fr}.form-grid,.subject-grid{grid-template-columns:1fr}.subject-card{min-height:240px}.path-intro{position:static}}@media (max-width:560px){.shell{width:min(100% - 28px,1180px)}.beta-banner{text-align:left;align-items:flex-start;font-size:11px}.site-header{grid-template-columns:1fr auto;gap:8px 12px;min-height:116px;padding-block:12px}.global-search{grid-area:2/1/auto/-1;max-width:none}.brand{font-size:18px}.brand-mark{flex-basis:31px;width:31px;height:31px}.header-actions{gap:6px}.button--quiet{min-height:40px;padding-inline:10px}.theme-toggle{width:40px;height:40px}.audience-mode>span{display:none}.audience-mode select{width:75px}.hero{gap:30px;min-height:auto;padding-block:46px 70px}.hero h1{font-size:44px}.hero-actions{flex-direction:column;align-items:flex-start}.hero-visual{min-height:370px;margin-inline:-14px;overflow:hidden}.book-card{width:310px}.book-cover{min-height:250px;padding:24px 18px}.book-cover strong{font-size:30px}.book-progress{padding:20px 16px}.floating-tag--video{left:8px}.floating-tag--audio{right:5px}.floating-tag--quiz{bottom:42px;right:10px}.learning-path,.subjects-section{padding-block:78px}.section-heading{margin-bottom:32px}.site-footer{grid-template-columns:1fr;padding-block:35px}.site-footer>span{justify-self:start}.catalog-hero{padding-block:65px}.catalog-result-grid,.catalog-status-row,.content-row,.library-grid,.mental-map-node-grid,.module-grid,.school-grid{grid-template-columns:1fr}.content-row{gap:25px}.mini-cover{width:155px;min-height:205px}.row-arrow{position:absolute;top:24px;right:24px}.content-hero{padding:45px 0 80px}.large-cover{width:min(290px,88vw);min-height:390px}.section-title-row{flex-direction:column;align-items:flex-start}.forum-teaser{padding:30px 22px}.auth-shell{width:min(100% - 28px,1050px);padding-top:30px}.badge-grid{grid-template-columns:1fr}.badge-section,.leaderboard-board,.leaderboard-notice,.scoring-explainer{padding:22px 18px}.beta-cohort-list>article>header,.readiness-attestation{flex-direction:column;grid-template-columns:1fr;align-items:stretch}.readiness-state{align-self:flex-start}.readiness-panel li{grid-template-columns:25px 1fr}.readiness-panel li em{grid-column:2}}@media (max-width:420px){.site-header{grid-template-columns:1fr;gap:9px;min-height:168px}.site-header>.brand{grid-area:1/1;justify-self:center}.header-actions{grid-area:2/1;justify-content:center;width:100%}.global-search{grid-area:3/1}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:after,:before{transition-duration:.01ms!important}}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--paper:#101827;--ink:#eef4f5;--muted:#a4b0b8;--line:#2b3948;--white:#172334}}:root[data-theme=dark]{--paper:#101827;--ink:#eef4f5;--muted:#a4b0b8;--line:#2b3948;--white:#172334}:root[data-theme=dark] .book-card,:root[data-theme=dark] .book-progress,:root[data-theme=dark] .button--quiet,:root[data-theme=dark] .floating-tag,:root[data-theme=dark] .theme-toggle{background:#172334}:root[data-theme=dark] .catalog-hero>p,:root[data-theme=dark] .content-hero-copy>p,:root[data-theme=dark] .hero-lead,:root[data-theme=dark] .path-intro>p:last-child,:root[data-theme=dark] .path-list p,:root[data-theme=dark] .trust-row{color:#a9b6be}:root[data-theme=dark] .hero-visual:before{background:#143d45}:root[data-theme=dark] .parent-section{background:#14353a}:root[data-theme=dark] .parent-points p{background:#00000021}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .book-card,:root:not([data-theme=light]) .book-progress,:root:not([data-theme=light]) .button--quiet,:root:not([data-theme=light]) .floating-tag,:root:not([data-theme=light]) .theme-toggle{background:#172334}:root:not([data-theme=light]) .catalog-hero>p,:root:not([data-theme=light]) .content-hero-copy>p,:root:not([data-theme=light]) .hero-lead,:root:not([data-theme=light]) .path-intro>p:last-child,:root:not([data-theme=light]) .path-list p,:root:not([data-theme=light]) .trust-row{color:#a9b6be}:root:not([data-theme=light]) .hero-visual:before{background:#143d45}:root:not([data-theme=light]) .parent-section{background:#14353a}:root:not([data-theme=light]) .parent-points p{background:#00000021}}.material-current{padding:16px}.material-history article>header,.material-release-heading{gap:8px;display:grid}.material-history time,.material-release-heading time{white-space:normal}@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}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}