@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Noto+Serif:ital,wght@0,400;0,500;1,400&display=swap');
:root{--bg:#f8f7f2;--ink:#252d28;--green:#24583e;--muted:#74796e;--line:#dedfd5;--lime:#dce89c;--serif:'Noto Serif',Georgia,serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Manrope,Arial,sans-serif;font-size:15px}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #9bae52;outline-offset:5px}header{height:100px;max-width:1390px;padding:0 6%;margin:auto;display:flex;align-items:center;gap:35px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-size:14px;line-height:1.35}.brand-icon{width:42px;height:42px;background:var(--green);color:#eef3da;border-radius:50%;display:grid;place-items:center;font-size:28px}.brand b{font-weight:800}nav{display:flex;gap:32px;margin:auto}nav 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/* Palette inspired by feg.bg: navy #192758 and royal blue #223e94. */
:root{--bg:#e2e9fb;--ink:#192758;--green:#223e94;--muted:#526285;--line:#b9c8e9;--lime:#f4a294;--coral:#ee827b;--sky:#7ccad8}
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#9aacd0;border-radius:12px;padding:27px;color:#536789;font-size:13px}.coming-soon{flex-wrap:wrap}.coming-soon p{margin:0}.lesson-card{background:#dbe4f8;border-color:#9fb5df;border-radius:14px}.lesson-card:nth-child(2){background:#c9e0e9}.cover-label{background:#cfddf7e6;color:#192758;display:flex;gap:7px;align-items:center}.cover-label .ui-icon{width:14px;height:14px}.card-body p{color:#4a5f84}.tags span{background:#b7c9ee;color:#213c78}.lesson-card:nth-child(2) .tags span{background:#a8d0dd;color:#235260}.card-bottom{border-color:#9eb4da}.lesson-card .cover{height:195px}.lesson-card:hover{box-shadow:0 14px 30px #19275818}.timeline-tease{background:#bfcff0;border:1px solid #a5b9df}.timeline-mini{color:#223e94}.timeline-mini span{border-color:#829fcf}.timeline-mini small{color:#526285}.quote{background:#ecc8c6;border-color:#dca4a5}.quote .eyebrow{color:#794955}.timeline-tease h3{color:#192758}.timeline-mini small{color:#405b84}.term-card,.media-card{background:#d4dff6;border-color:#afc2e7}.term-card:nth-child(3n+2),.media-card:nth-child(3n+2){background:#c8e0e9}.term-card:nth-child(3n),.media-card:nth-child(3n){background:#ded5ed}.term-card p,.media-card p{color:#44577d}.event{background:#cfdcf5;border-color:#adc1e4}.event:nth-child(3n){background:#e8c9ce}.event:nth-child(3n+2){background:#c5dfe6}.event p{color:#44577d}.timeline{border-color:#839fcf}.event:before{background:#223e94;border-color:#dde6fa}.lesson-text p{color:#344b70}.lesson-text .intro{color:#192758}.lesson-byline{color:#536789;font-size:12px}.fr{color:#5d5086}.plan,.quiz{background:#cad8f2}.demo{background:#c0dee6}.fact{border-color:#d47775;color:#714451}.page-head .lede{color:#526285}.search{background:#cddbf6;border-color:#9fb4df;color:#192758}.filter.active{background:#223e94}.filter{border-color:#97afd9}.reader-settings{background:#c5d6f3;border:1px solid #a6bde6;padding:18px 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#e68e82;padding:8px 12px;transition:background .2s}.voice-notice{color:#5e4a7c!important}.grade{white-space:nowrap}footer{color:#526285}footer .brand{color:#223e94}.search:focus{outline-color:#223e94}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #d5716f;outline-offset:4px}button[hidden]{display:none}.present .text-reader{margin:0 0 25px}.present .reader-settings{font-size:13px}@keyframes enter{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes art-drift{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}@keyframes note-drift{0%,100%{transform:translateY(0) rotate(-8deg)}50%{transform:translateY(-12px) rotate(8deg)}}@keyframes equalizer{from{transform:scaleY(.35)}to{transform:scaleY(1)}}
@media(max-width:850px){header{padding:18px 22px}.hero{padding-top:35px}.picker-step{padding:21px 18px;border-radius:15px}.step-heading{gap:10px}.step-heading h2{font-size:23px}.step-heading>.ui-icon{width:23px}.grade-options{gap:8px}.grade-option{padding:15px 10px;flex-direction:column;align-items:flex-start;gap:2px}.grade-option span{font-size:34px}.grade-option b{position:absolute;right:8px;top:10px}.picker-step select{width:100%;min-width:0}.hero-art{border-radius:70px 70px 18px 18px}.lesson-card .cover{height:175px}.step-number{width:31px;height:31px}.teacher-chosen{flex-wrap:wrap}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}@media print{body,.reader-settings,.quiz,.plan,.demo{background:white!important}.text-reader,.reader-settings{display:none!important}.reading-now{background:none;box-shadow:none;padding:0}.lesson-text p{color:black!important}}
.teacher-choice{display:flex;align-items:center;gap:14px;max-width:440px;width:100%;padding:17px 20px;border:2px solid transparent;border-radius:12px;background:#bec9ec;color:#192758;text-align:left;transition:background .2s,transform .2s}.teacher-choice b{font-size:15px}.teacher-choice small{display:block;font-size:11px;margin-top:5px;color:#4a6085}.teacher-choice.selected{border-color:#223e94;background:#b8c8ef}.teacher-choice:disabled{opacity:.5;cursor:not-allowed}.teacher-choice:not(:disabled):hover{transform:translateY(-2px)}.teacher-check{margin-left:auto;font-weight:800}
/* Learning space navigation, full lessons and personal tests. */
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.lesson-topline .grade{margin-left:0}