@font-face{font-family:Manrope;src:url('fonts/Manrope.ttf') format('truetype');font-weight:200 800;font-display:swap}
:root{--paper:#e9e6fa;--ink:#211d38;--muted:#3823a2;--orange:#5c44d6;--line:#bfb5ef;--lime:#b6abec;--white:#fbfafe;--font:Manrope,'Segoe UI',sans-serif;font:500 16px/1.65 var(--font);color:var(--ink);background:var(--paper);font-synthesis:none}
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@media(max-width:360px){.wrap{width:calc(100% - 30px)}.hero-copy h1{font-size:35px}.hero-actions{gap:10px}.hero-actions .text-action{font-size:10px}.hero-actions .button{font-size:11px;gap:20px}.demo-sheet{padding:19px}.demo-title h2{font-size:23px}.pencil-note{font-size:8px}.subject-link .subject-name{font-size:11px}.worked-example>span{font-size:29px}.final-heading h2{font-size:33px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

.hero-lead{font-size:16px}.demo-feedback{font-size:11px}.subject-link>small{font-size:10px}.library-note,.paper-footnote{font-size:11px}.route-explanation li p,.review-heading>p,.reference-page>p{font-size:14px}.questions details>p{font-size:13px}.quiet{font-size:11px}.library-topline{font-size:10px}.sheet-top{font-size:9px}.hero-topline{font-size:11px}.hero-baseline{font-size:10px}.hero-baseline>a{font-size:11px}.demo-bottom .text-action,.demo-reset{font-size:11px}.section-label{font-size:10px}.dialog-note{font-size:11px}.field label{font-size:12px}.field small{font-size:10px}.switch-line,.switch-line button{font-size:12px}
@media(max-width:760px){.hero-lead{font-size:14px}.quiet{font-size:10px}.sheet-top{font-size:8px}.hero-topline{font-size:9px}.hero-baseline{font-size:8px}.hero-baseline>a{font-size:9px}.library-note,.paper-footnote{font-size:10px}.subject-link>small{font-size:9px}.route-explanation li p,.review-heading>p,.reference-page>p{font-size:13px}.questions details>p{font-size:12px}}

.nav-toggle{display:none}.topbar{position:relative}.nav-toggle:focus-visible{outline-offset:3px}
@media(max-width:760px){.nav-toggle{display:block;background:none;font-size:21px;min-height:44px;min-width:44px;margin-left:auto;padding:5px}.top-login{gap:12px}.topbar{gap:12px}.main-nav.open{display:flex;position:absolute;left:0;right:0;top:77px;z-index:10;background:var(--white);border:1px solid var(--line);margin:0;padding:12px 17px;gap:18px;flex-wrap:wrap;box-shadow:0 8px 0 #b6abec}.main-nav.open a{min-height:35px;font-size:11px}}

.subject-intro,.subject-library,.subject-link,.hero-copy,.reference-page,.route-explanation,.review-paper,.questions{min-width:0}.subject-list{grid-template-columns:repeat(2,minmax(0,1fr))}.subject-link .subject-name{overflow-wrap:anywhere}
@media(max-width:760px){.subject-layout{grid-template-columns:minmax(0,1fr)}.learning-spread,.review-layout,.faq-section{grid-template-columns:minmax(0,1fr)}}