/* BOORIKO 8.10 — shared public design. Private accounts and games keep their own UI. */
body.bk810-public{--b810-ink:#142e50;--b810-muted:#50647d;--b810-line:#dce4ee;--b81-ink:#142e50;--b81-muted:#50647d;--b81-line:#dce4ee;background:#fff url('school/paper-grain-clear.svg');background-size:180px;color:var(--b810-ink);font-family:Manrope,system-ui,sans-serif}
.bk810-public :is(.bk81-page,.bk72-surface,.bk841-guide,.bk87-footer) *{box-sizing:border-box;min-width:0}
.bk810-public :is(a,button,summary,input,select,textarea):focus-visible{outline:3px solid #2867ba;outline-offset:4px}
.bk810-public [id]{scroll-margin-top:110px}.bk810-public.admin-bar [id]{scroll-margin-top:145px}
.bk810-public .bk81-wrap,.bk810-public .bk87-footer .bk87-wrap{width:min(1240px,calc(100% - 80px));margin-inline:auto}
.bk810-public .bk81-header{background:#fffffffa;backdrop-filter:blur(12px);border-bottom:1px solid #e6ecf4;box-shadow:none;color:#142e50}
.bk810-public .bk81-header-inner{width:min(1400px,calc(100% - 64px));min-height:84px;gap:30px}
.bk810-public .bk81-brand{gap:10px;color:#142e50}.bk810-public .bk78-mark{width:40px;height:40px;object-fit:contain}
.bk810-public .bk89-wordmark{display:block;font:400 37px/1.65 BoorikoCursive,cursive;letter-spacing:-2px;padding-top:15px;white-space:nowrap;clip-path:inset(0);animation:bk810-write 14s ease-in-out 2s 2}
.bk810-public .bk89-wordmark>span{color:#d75b00}@keyframes bk810-write{0%,75%,100%{clip-path:inset(0)}84%,88%{clip-path:inset(0 100% 0 0)}}
.bk810-public .bk81-menu{margin-left:auto;gap:28px;overflow:visible}
.bk810-public .bk81-menu>a,.bk810-public .bk81-menu summary{font-size:13px;color:#1c3c64;min-height:44px}
.bk810-public .bk81-menu .bk81-login{display:flex;align-items:center;border:1px solid #214d80;border-radius:30px;padding:10px 22px;background:#fff}
.bk810-public .bk81-nav-dropdown>div{border-color:#dce4ee;box-shadow:0 20px 50px #142e501a;border-radius:16px;z-index:10}
.bk810-public .bk81-nav-dropdown>div>a{color:#1a3c66;border-color:#edf1f7;min-height:44px}
.bk810-public .bk81-nav-dropdown>div>a:hover{background:#f0f5fc}
.bk810-public .bk81-menu-toggle{color:#142e50;border-color:#cbd8e8;min-height:44px;border-radius:10px;background:#fff}
.bk810-public .bk81-header-cta{background:#142e50;color:#fff!important;border:0;border-radius:30px;padding:13px 20px}
/* The common page introduction: copy first, one illustration, a compact takeaway. */
.bk810-public .bk81-page{--page:var(--b810-accent);--page-soft:var(--b810-soft);color:#142e50}
.bk810-public .bk81-hero.bk810-hero{background:#f3f7fc url('school/paper-grain-clear.svg');background-size:180px;border-bottom:1px solid #dce5f1;padding:25px 0 56px}
.bk810-public .bk81-breadcrumb{color:#556985;font-size:12px;gap:12px;margin-bottom:30px;line-height:1.7}
.bk810-hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:60px;align-items:center}
.bk810-public .bk810-hero h1{font:700 clamp(36px,4.3vw,62px)/1.08 Georgia,'Times New Roman',serif;letter-spacing:-.04em;max-width:760px;margin:0 0 26px;text-wrap:balance;color:inherit}
.bk810-public .bk810-hero .bk81-kicker{color:#2456a3;font-size:11px!important;letter-spacing:.12em;margin-bottom:20px!important}
.bk810-public .bk810-hero .bk81-lead{font-size:18px;line-height:1.85;color:#445e7c;max-width:660px;margin:0 0 28px}
.bk810-hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:22px}
.bk810-public .bk81-page .bk81-button{background:#ff9b2b;color:#142e50!important;border:1px solid #ee8a1c;border-radius:30px;padding:16px 24px;gap:16px;line-height:1.5;font-size:14px;box-shadow:none;white-space:normal;text-align:center;max-width:100%;min-height:54px}
.bk810-public .bk81-page .bk81-button:hover{background:#ffac4c}
.bk810-subtle-link{color:inherit;font-size:13px;font-weight:750;text-underline-offset:5px;line-height:1.7;padding-block:10px}
.bk810-hero-visual{position:relative;display:grid;align-self:center;max-width:440px;justify-self:end;width:100%}
.bk810-art-stage{width:82%;margin:-10px auto -24px;position:relative;z-index:1;aspect-ratio:1}
.bk810-art-stage img{display:block;width:100%;height:100%;object-fit:contain}
.bk810-spark{position:absolute;right:0;top:16%;color:#d98417;font-size:30px;transform:rotate(12deg)}
.bk810-note{position:relative;background:#fff;color:#183655;border:1px solid #dce4ee;border-radius:18px;padding:27px 28px 24px;box-shadow:0 14px 30px #1738580a}
.bk810-note .bk81-tab{background:#eaf2ff;border:0;color:#2456a3;border-radius:5px;font-size:9px;padding:5px 8px}
.bk810-note>p{font-size:22px;font-weight:800;letter-spacing:-.035em;line-height:1.35!important;margin:17px 0 14px}
.bk810-note ul{padding-left:19px;margin:0;display:grid;gap:7px;font-size:13px;line-height:1.65}.bk810-note li::marker{color:#e18b29}
.bk810-public :is(.bk81-page-notre-methode,.bk81-page-apprendre) .bk810-hero{background-color:#143455;color:white;border-bottom-color:#23476c}
.bk810-public :is(.bk81-page-notre-methode,.bk81-page-apprendre) .bk810-hero :is(.bk81-breadcrumb,.bk81-lead){color:#dce8f8}
.bk810-public :is(.bk81-page-notre-methode,.bk81-page-apprendre) .bk810-hero .bk81-kicker{color:#ffbb6c}
.bk810-public.bk810-theme-famille .bk810-hero,.bk810-public .bk81-page-offres .bk810-hero{background-color:#fff2df;border-bottom-color:#edd8b8}
.bk810-public.bk810-theme-famille .bk810-hero .bk81-kicker,.bk810-public .bk81-page-offres .bk810-hero .bk81-kicker{color:#9f490a}
.bk810-public .bk81-page-pour-les-parents .bk810-hero{background-color:#eaf7f3;border-bottom-color:#cbe4dd}
/* Editorial layout. DOM order also gives mobile users the contents before the article. */
.bk810-public .bk81-reading-grid{grid-template-columns:minmax(0,1fr) 245px;gap:72px;align-items:start;padding-top:60px;padding-bottom:16px}
.bk810-public .bk81-reading{grid-column:1;grid-row:1;min-width:0}
.bk810-public .bk81-toc{grid-column:2;grid-row:1;top:115px;padding:24px 22px;border:1px solid #dce4ee;background:#f7f9fc;border-radius:16px}
.bk810-public.admin-bar .bk81-toc{top:147px}
.bk810-public .bk81-toc>details{border:0;padding:0}.bk810-public .bk81-toc summary{font-size:13px;color:#173757;line-height:1.6}
.bk810-public .bk81-toc nav>a{font-size:12px;padding:11px 0;border-color:#e2e8f0;color:#536981;line-height:1.7}
.bk810-public .bk81-toc nav>a[aria-current],.bk810-public .bk72-toc a[aria-current]{color:var(--b810-accent);font-weight:850;text-decoration:underline;text-underline-offset:4px}
.bk810-public .bk81-toc>p{color:#536981;font-size:11px;border-top:1px solid #dce4ee;padding-top:16px}
.bk810-public .bk81-section{padding-bottom:46px;margin-bottom:46px;border-color:#e2e8f0}
.bk810-public .bk81-section>h2{font:700 clamp(28px,2.5vw,36px)/1.2 Georgia,'Times New Roman',serif;letter-spacing:-.025em;color:#142e50;margin-bottom:23px;text-wrap:balance}
.bk810-public .bk81-section>p{color:#445d78;font-size:17px;line-height:1.85}
.bk810-public .bk81-section .bk81-kicker{color:var(--b810-accent);font-size:10px!important}
.bk810-public .bk81-section h3{font-size:21px;line-height:1.35;letter-spacing:-.03em;color:#173757}
.bk810-public .bk81-section .bk81-item{padding:27px;background:#f5f8fd;border-color:#dce5f1;border-radius:16px;box-shadow:none}
.bk810-public .bk81-section .bk81-item p{font-size:15px;line-height:1.85;color:#4b627c}
.bk810-public .bk81-step-number{border-radius:50%;background:#e1ebfc;color:#2456a3;width:40px;height:40px;font-size:13px}
.bk810-public :is(.bk81-cards,.bk81-situations,.bk81-checklist)>.bk81-item:nth-child(3n+2){background:#fff5e7;border-color:#eed8b8}
.bk810-public :is(.bk81-cards,.bk81-situations,.bk81-checklist)>.bk81-item:nth-child(3n){background:#eef7f3;border-color:#cce5d9}
.bk810-public .bk81-domain-grid{gap:22px}.bk810-public .bk81-domain-grid article{border-radius:16px;background:#fff;border-color:#dce4ee;border-top-color:var(--domain);padding:27px}
.bk810-public .bk81-domain-grid h3{font-size:23px}.bk810-public .bk81-domain-grid p:not(.bk81-domain-name){font-size:15px;line-height:1.85;color:#50647d}
.bk810-public .bk81-grade-grid>a{border-radius:14px;border-color:#d4e0ef;background:#f5f8fd;padding:23px;color:#173757}
.bk810-public .bk81-grade-grid p{font-size:13px}.bk810-public .bk81-grade-grid b{font-size:12px}.bk810-public .bk81-grade-grid>a:hover{background:#eaf2ff;border-color:#a4bfe2}
.bk810-public :is(.bk81-note,.bk81-notice,.bk81-gift-example,.bk81-demo){background:#fff6e8;border:1px solid #ecd8b4;border-left:4px solid #ed9b34;border-radius:14px;padding:26px;color:#4b452e}
.bk810-public .bk81-demo p,.bk810-public .bk81-gift-example p{color:#4c5d70;font-size:16px}
.bk810-public .bk81-faq details{background:#fff;border:1px solid #dce4ee;border-radius:12px;padding:0 22px;margin:0 0 12px}
.bk810-public .bk81-faq summary{font-size:15px;line-height:1.65;padding:20px 0;min-height:52px}
.bk810-public .bk81-faq details p{margin:0;padding:0 0 22px;font-size:15px;line-height:1.85;color:#4b627c}
.bk810-public .bk81-related{border-color:#dce4ee;margin-block:36px 64px}.bk810-public .bk81-related>div{gap:12px}
.bk810-public .bk81-related a{background:#f2f6fc;color:#2456a3;border:1px solid #d6e1f0;border-radius:30px;padding:14px 20px;font-size:13px;line-height:1.6;text-decoration:none;min-height:46px}
.bk810-public .bk85-invite{background:#143455;border-color:#234d76;border-radius:20px;padding:38px 40px}
.bk810-public .bk85-invite h2{font-family:Georgia,'Times New Roman',serif!important;font-size:32px!important;letter-spacing:-.03em}
.bk810-public .bk85-invite p:not(.bk81-kicker){color:#e2edfa!important}.bk810-public .bk85-invite small{color:#dce6f4}
.bk810-public .bk85-invite-side{padding:24px;display:block}.bk810-public .bk85-invite-side h2{font-size:25px!important}
.bk810-public .bk85-offer-note{border-radius:16px;background:#fff3df;border-color:#ecd4ae;border-left-color:#eb941e;color:#53452d}
.bk810-public .bk85-prices>.bk85-price{background:#f4f8ff;border:1px solid #ccdbef;border-top:4px solid #3567ad;border-radius:16px;padding:28px}
.bk810-public .bk85-prices>.bk85-price:nth-child(2){background:#fff4e6;border-color:#eed3ad;border-top-color:#da7817}
.bk810-public .bk85-prices>.bk85-price:nth-child(3){background:#f7f0fc;border-color:#e2d2ed;border-top-color:#8753ab}
.bk810-public .bk85-price h3{font-size:26px}.bk810-public .bk85-price .bk85-price-value{color:#142e50}.bk810-public .bk85-price-status{color:#50647d}
.bk810-public .bk81-page .bk81-plan{--plan:#2456a3;--plan-soft:#eff5ff;border-radius:16px;border-color:#cfddf0;border-top-color:var(--plan);padding:25px 22px;box-shadow:none}
.bk810-public .bk81-page .bk81-plan:nth-child(2){--plan:#b45b10;--plan-soft:#fff2df;border-color:#edd5b4;border-top-color:var(--plan)}
.bk810-public .bk81-page .bk81-plan:nth-child(3){--plan:#7846a5;--plan-soft:#f6effd;border-color:#e0d0ef;border-top-color:var(--plan)}
.bk810-public .bk81-page .bk81-plan .bk81-plan-price{color:#142e50;font-size:38px;line-height:1.25!important;margin-bottom:16px!important}
.bk810-public .bk81-page .bk81-plan>p:not(.bk81-plan-price):not(.bk81-plan-label){font-size:14px;color:#4b627c;margin:0 0 24px;line-height:1.75}
.bk810-public .bk81-page .bk81-plan>.bk81-button{margin-top:auto;font-size:13px;line-height:1.65;padding:13px 14px;border-radius:12px}
/* Lessons, class catalogues, theme landing pages, search and article templates. */
.bk810-public .bk72-surface{background:transparent;--bk71-ink:var(--b810-accent);--bk71-accent:var(--b810-accent);--bk71-soft:var(--b810-soft)}
.bk810-public .bk72-intro{width:min(1240px,calc(100% - 80px));max-width:none;margin:32px auto 0;padding:30px 40px 38px;background:var(--b810-soft) url('school/paper-grain-clear.svg');background-size:180px;border:1px solid #dce4ee;border-radius:20px;box-shadow:none;color:#142e50}
.bk810-public .bk72-intro:after,.bk810-public .bk72-intro:before{display:none}
.bk810-reading-heading{display:grid;grid-template-columns:minmax(0,1fr) 110px;gap:32px;align-items:center}
.bk810-public .bk72-intro h1{font:700 clamp(34px,3.7vw,50px)/1.14 Georgia,'Times New Roman',serif;letter-spacing:-.035em;max-width:960px;text-wrap:balance;margin-bottom:20px}
.bk810-public .bk72-intro-text{color:#49617c;font-size:17px;line-height:1.85;max-width:850px}
.bk810-public .bk72-eyebrow{font-size:11px;font-weight:800;letter-spacing:.09em;color:var(--b810-accent);margin-bottom:14px}
.bk810-public .bk72-breadcrumbs{color:#50647d;font-size:12px;margin-bottom:23px;line-height:1.8}
.bk810-topic-symbol{display:grid;place-items:center;width:110px;height:110px;border-radius:25px;background:#ffffffc7;border:1px solid #d5e0ee;font:700 40px/1.2 Georgia,serif;color:var(--b810-accent);transform:rotate(-5deg);box-shadow:5px 6px 0 #ffffff70}
.bk810-public.bk810-theme-francais .bk72-intro{background-image:linear-gradient(90deg,transparent 22px,#c7747440 22px,#c7747440 24px,transparent 24px),url('school/paper-grain-clear.svg');background-size:auto,180px}
.bk810-public.bk810-theme-maths .bk72-intro{background-image:linear-gradient(#b4772112 1px,transparent 1px),linear-gradient(90deg,#b4772112 1px,transparent 1px);background-size:16px 16px}
.bk810-public .bk72-shell{max-width:1240px;width:calc(100% - 80px);grid-template-columns:minmax(0,1fr) 280px;gap:44px;padding-top:34px;margin-inline:auto;align-items:start}
.bk810-public .bk72-main{padding:36px;background:#fff;border:1px solid #e1e7ee;border-radius:16px;box-shadow:none;color:#263f5c}
.bk810-public .bk72-main .bk72-prose{max-width:none}.bk810-public .bk72-main .bk72-prose p{font-size:17px;line-height:1.85;color:#445d78}
.bk810-public .bk72-main h2{font:700 29px/1.27 Georgia,'Times New Roman',serif;color:#142e50;letter-spacing:-.025em}
.bk810-public .bk72-main h3{font-size:20px;line-height:1.4;color:#173757}
.bk810-public .bk72-prose :is(.bk63-exercise,.bk64-exercise,.bk65-exercise,.bk45-exercises,.bk71-extra-practice){border-radius:14px;background:var(--b810-soft);padding:26px;border-left:4px solid var(--b810-accent)}
.bk810-public .bk72-prose .bk45-remember{background:#fff8e9;border-color:#e7a641;border-radius:0 12px 12px 0;padding:20px 24px}
.bk810-public .bk72-sidebar{top:114px;padding-left:0;border-left:0}.bk810-public.admin-bar .bk72-sidebar{top:146px}
.bk810-public .bk72-side-topic{background:var(--b810-soft);color:var(--b810-accent);padding:18px 20px;border-radius:12px;margin-bottom:24px}
.bk810-public .bk72-side-topic span{font-size:12px;color:#50647d}
.bk810-public .bk72-toc{border:1px solid #dce4ee;border-radius:14px;padding:22px;background:#fafcff}
.bk810-public .bk72-toc a{display:block;font-size:13px;line-height:1.7;padding:5px 0;min-height:32px}
.bk810-public .bk72-side-links{padding:22px 8px}.bk810-public .bk72-side-links a{font-size:13px;line-height:1.7}
.bk810-public .bk72-mobile-toc{background:#f2f6fc;border:1px solid #dce4ee;border-radius:12px;padding:16px 20px;color:#142e50}
.bk810-public .bk44-class-card,.bk810-public .bk61-card,.bk810-public .bk62-ce1-card{border-radius:14px;background:var(--b810-soft);border-color:#d6e1ee;padding:23px;color:#173757;box-shadow:none}
.bk810-public .bk44-filters{background:#f5f8fd;border:1px solid #dce4ee;border-radius:14px;padding:22px;gap:18px}
.bk810-public .bk44-grade-panel{border:1px solid #dce4ee;border-radius:14px;background:#fff;padding:0 22px;margin-block:20px}
.bk810-public .bk44-grade-panel>summary{padding-block:21px}.bk810-public .bk44-grade-badge{background:#edf3fd;padding:10px;border-radius:9px;min-width:54px;text-align:center}
.bk810-public .bk44-subject-panel>summary{min-height:60px}.bk810-public .bk44-subject-icon{width:38px}
.bk810-public .bk44-rubric li{padding-block:13px;gap:10px}.bk810-public .bk44-notion-state{font-size:10px;white-space:normal}
.bk810-public .bk72-main .bkl-module{border:0;padding:0;background:transparent;box-shadow:none}
.bk810-public .bkl-module .bkl-filter{background:var(--b810-soft);border-radius:12px;padding:18px;border:1px solid #dce4ee}
.bk810-public .bkl-module .bkl-stage{border:1px solid #dce4ee;border-top:3px solid var(--bkl-accent,var(--b810-accent));border-radius:14px;padding:24px;background:#fff;margin:20px 0}
.bk810-public .bkl-module .bkl-stage h3{color:#183858}.bk810-public .bkl-module .bkl-stage a{min-height:44px;display:inline-flex;align-items:center}
.bk810-public .bkl-module :is(input,select){font-size:16px;max-width:100%}
/* Official guides retain visible dates, provenance and their non-commercial body. */
.bk810-public .bk841-guide{padding:0;background:transparent;width:min(1240px,calc(100% - 80px));margin:32px auto 64px;color:#173757}
.bk810-public .bk841-hero{background:#f0f5fc;border:1px solid #dce4ee;border-radius:20px;padding:36px 40px}
.bk810-public .bk841-hero h1{font:700 clamp(34px,3.7vw,50px)/1.15 Georgia,serif;letter-spacing:-.035em;color:#142e50}
.bk810-public .bk841-layout{grid-template-columns:minmax(0,1fr) 280px;gap:44px;margin-top:34px}
.bk810-public .bk841-article{padding:34px;background:#fff;border:1px solid #e1e7ee;border-radius:16px}.bk810-public .bk841-article h2{font-family:Georgia,serif;font-size:29px;line-height:1.3}
.bk810-public .bk841-article p{font-size:17px;line-height:1.85}.bk810-public .bk841-side-inner{background:#f5f8fd;border-radius:14px;padding:24px;border:1px solid #dce4ee}
/* One footer throughout the public site. All links are full page URLs. */
.bk810-public .bk87-footer{font:15px/1.7 Manrope,system-ui,sans-serif;color:#142e50;background:#eff4fb;border-top:1px solid #d8e2f0;padding-top:54px;margin-top:0}
.bk810-public .bk87-footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:42px;padding-bottom:42px}
.bk810-public .bk87-footer-brand>p{font-size:18px;font-weight:800;line-height:1.6;margin:20px 0 13px}.bk810-public .bk87-footer-brand small{font-size:12px;line-height:1.8;color:#50647d}
.bk810-public .bk87-footer nav{display:flex;flex-direction:column;align-items:flex-start;gap:8px}
.bk810-public .bk87-footer nav h2{font:800 13px/1.6 Manrope,sans-serif;letter-spacing:0;margin:0 0 13px;color:#183858}
.bk810-public .bk87-footer nav a{display:flex;align-items:center;min-height:34px;font-size:12px;text-decoration:none;color:#455f7e;line-height:1.7;text-underline-offset:4px}
.bk810-public .bk87-footer a:hover{text-decoration:underline}.bk810-public .bk87-footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid #cfdceb;padding-block:24px;font-size:11px;color:#50647d}
.bk810-public .bk87-footer-bottom nav{flex-direction:row;flex-wrap:wrap;gap:22px}.bk810-public .bk87-footer-bottom nav a{font-size:11px}.bk810-public .bk87-footer .bk89-wordmark{animation:none}
.bk810-public .bk85-login-dialog{background:#fff;color:#142e50;border-color:#dce4ee}.bk810-public .bk85-login-dialog h2{color:#142e50;font-family:Georgia,serif}.bk810-public .bk85-dialog-close{background:#edf2fa;color:#142e50;border-color:#dce4ee}
@media(max-width:1150px){
 .bk810-public .bk81-header-inner{gap:20px}.bk810-public .bk81-menu{gap:20px}.bk810-public .bk81-wrap,.bk810-public .bk87-footer .bk87-wrap{width:calc(100% - 48px)}
 .bk810-hero-grid{gap:36px}.bk810-public .bk810-hero h1{font-size:48px}.bk810-public .bk81-reading-grid{gap:40px;grid-template-columns:minmax(0,1fr) 220px}
 .bk810-public .bk72-intro{width:calc(100% - 48px)}.bk810-public .bk72-shell{width:calc(100% - 48px);gap:28px;grid-template-columns:minmax(0,1fr) 250px}
 .bk810-public .bk72-main{padding:28px}.bk810-public .bk87-footer-grid{gap:25px}
}
@media(max-width:1150px){
 .bk810-public .bk81-header-inner{flex-wrap:wrap;padding-block:8px;min-height:76px;gap:12px}.bk810-public .bk81-menu-toggle:not([hidden]){display:block;margin-left:auto;order:3}
 .bk810-public .bk810-account{margin-left:auto;order:2}.bk810-public .bk810-account+.bk81-menu-toggle{margin-left:0}
 .bk810-public .bk81-menu{width:100%;flex-basis:100%;order:4;display:flex;align-items:stretch;flex-direction:column;padding:14px 0 20px;gap:4px;margin:0;max-height:calc(100dvh - 150px);overflow:auto}
 .bk810-public .bk81-menu-ready:not(.bk81-menu-open) .bk81-menu{display:none}
 .bk810-public .bk81-menu>a,.bk810-public .bk81-menu summary{padding:12px;font-size:14px}.bk810-public .bk81-menu .bk81-login{justify-content:center;margin-top:8px}
 .bk810-public .bk81-nav-dropdown>div{position:static;width:100%;box-shadow:none;padding:18px 22px;margin:0 0 10px}
}
@media(max-width:900px){
 .bk810-public .bk810-hero h1{font-size:42px}.bk810-public .bk810-hero .bk81-lead{font-size:16px}.bk810-hero-grid{gap:26px}.bk810-note{padding:23px}.bk810-note>p{font-size:20px}
 .bk810-public .bk81-reading-grid{grid-template-columns:1fr;gap:28px;padding-top:32px}.bk810-public .bk81-toc{grid-column:1;grid-row:1;position:static;padding:20px 23px}.bk810-public .bk81-toc nav{display:flex;flex-wrap:wrap;gap:6px 20px}.bk810-public .bk81-toc>p{display:none}.bk810-public .bk81-reading{grid-column:1;grid-row:2}
 .bk810-public .bk72-shell{grid-template-columns:1fr;gap:25px}.bk810-public .bk72-sidebar{position:static;border:0;padding:0}.bk810-public .bk72-sidebar .bk85-invite{display:grid;grid-template-columns:1fr 1fr;gap:28px}.bk810-public .bk72-sidebar .bk72-side-topic{display:none}
 .bk810-public .bk841-guide{padding:0;background:transparent;width:calc(100% - 48px)}.bk810-public .bk841-layout{grid-template-columns:1fr;gap:24px}.bk810-public .bk841-sidebar{position:static}
 .bk810-public .bk87-footer-grid{grid-template-columns:1fr 1fr;gap:36px}.bk810-public .bk87-footer-bottom{flex-wrap:wrap}
}
@media(max-width:700px){
 .bk810-public .bk81-header-inner{width:calc(100% - 32px);min-height:72px;gap:12px}.bk810-public .bk89-wordmark{font-size:29px;padding-top:12px}.bk810-public .bk78-mark{width:32px;height:32px}.bk810-public .bk81-brand{gap:7px}
 .bk810-public .bk81-header-cta{font-size:12px;padding:12px 15px;min-height:44px;margin-left:auto}.bk810-public .bk81-menu-toggle{font-size:12px;padding:10px;min-width:64px}.bk810-public .bk81-menu{margin-left:0}
 .bk810-public .bk81-wrap,.bk810-public .bk87-footer .bk87-wrap{width:calc(100% - 40px)}
 .bk810-public .bk81-hero.bk810-hero{padding:22px 0 32px}.bk810-public .bk81-breadcrumb{font-size:11px;margin-bottom:28px}
 .bk810-hero-grid{grid-template-columns:1fr;gap:20px}.bk810-public .bk810-hero h1{font-size:40px;line-height:1.12;margin-bottom:22px;max-width:570px;text-wrap:pretty}
 .bk810-public .bk810-hero .bk81-kicker{font-size:10px!important;margin-bottom:17px!important}.bk810-public .bk810-hero .bk81-lead{font-size:16px;line-height:1.85;margin-bottom:22px}
 .bk810-hero-actions{gap:10px;align-items:flex-start;flex-direction:column}.bk810-public .bk81-page .bk81-button{font-size:14px;padding:15px 22px;min-height:52px}
 .bk810-hero-visual{max-width:440px;justify-self:center}.bk810-art-stage{width:230px;margin:-8px auto -17px}.bk810-note{padding:24px}.bk810-note>p{font-size:22px;margin-top:16px}.bk810-note ul{font-size:13px}.bk810-spark{font-size:24px}
 .bk810-public .bk81-section{padding-bottom:32px;margin-bottom:32px}.bk810-public .bk81-section>h2{font-size:29px}.bk810-public .bk81-section>p{font-size:16px}.bk810-public .bk81-section h3{font-size:20px}
 .bk810-public :is(.bk81-cards,.bk81-situations,.bk81-checklist,.bk81-domain-grid){grid-template-columns:1fr}.bk810-public .bk81-section .bk81-item{padding:23px}.bk810-public .bk81-domain-grid article{padding:25px}
 .bk810-public .bk81-reading .bk81-grade-grid{grid-template-columns:1fr 1fr}.bk810-public .bk81-grade-grid>a{padding:20px}.bk810-public .bk81-grade-grid p{font-size:12px}
 .bk810-public .bk81-toc nav{display:grid;gap:0}.bk810-public .bk81-toc nav>a{font-size:13px}.bk810-public .bk81-faq details{padding-inline:20px}
 .bk810-public .bk85-invite,.bk810-public .bk72-sidebar .bk85-invite{display:block;padding:27px}.bk810-public .bk85-invite h2{font-size:29px!important}.bk810-public .bk85-invite-side h2{font-size:27px!important}.bk810-public .bk85-invite-actions{margin-top:22px}
 .bk810-public .bk72-intro{width:calc(100% - 28px);margin-top:20px;padding:24px 25px 29px;border-radius:16px}.bk810-reading-heading{grid-template-columns:1fr;gap:0}.bk810-topic-symbol{display:none}
 .bk810-public .bk72-intro h1{font-size:34px;line-height:1.18;text-wrap:pretty}.bk810-public .bk72-intro-text{font-size:16px;line-height:1.85}.bk810-public .bk72-eyebrow{font-size:10px}.bk810-public .bk72-breadcrumbs{font-size:11px}
 .bk810-public .bk72-shell{width:calc(100% - 28px);padding-top:20px;gap:20px}.bk810-public .bk72-main{padding:25px 22px}.bk810-public .bk72-main .bk72-prose p{font-size:16px}.bk810-public .bk72-main h2{font-size:27px}
 .bk810-public .bk72-prose :is(.bk63-exercise,.bk64-exercise,.bk65-exercise,.bk45-exercises,.bk71-extra-practice){padding:20px}
 .bk810-public .bk44-class-card,.bk810-public .bk61-card,.bk810-public .bk62-ce1-card{padding:18px}.bk810-public .bk44-grade-panel{padding-inline:17px}
 .bk810-public .bk841-guide{padding:0;background:transparent;width:calc(100% - 28px);margin-top:20px}.bk810-public .bk841-hero{padding:27px 24px}.bk810-public .bk841-hero h1{font-size:34px}.bk810-public .bk841-article{padding:26px 22px}.bk810-public .bk841-article h2{font-size:27px}.bk810-public .bk841-article p{font-size:16px}
 .bk810-public .bk87-footer{padding-top:36px}.bk810-public .bk87-footer-grid{gap:30px 24px;padding-bottom:30px}.bk810-public .bk87-footer-brand{grid-column:1/-1}.bk810-public .bk87-footer nav a{font-size:12px;min-height:38px}.bk810-public .bk87-footer nav h2{font-size:12px}.bk810-public .bk87-footer-bottom{align-items:flex-start;flex-direction:column;gap:10px}.bk810-public .bk87-footer-bottom nav{gap:10px 18px}
}
@media(max-width:390px){
 .bk810-public .bk81-header-inner{gap:8px}.bk810-public .bk89-wordmark{font-size:25px}.bk810-public .bk78-mark{width:29px;height:29px;display:block}.bk810-public .bk810-account{font-size:11px;padding:10px 11px;gap:5px}.bk810-public .bk81-menu-toggle{min-width:56px;padding:9px;font-size:11px}.bk810-public .bk81-menu-toggle span{margin-right:2px}
 .bk810-public .bk810-hero h1{font-size:35px}.bk810-public .bk72-intro h1,.bk810-public .bk841-hero h1{font-size:30px}.bk810-public .bk72-main{padding:22px 18px}.bk810-public .bk81-reading .bk81-grade-grid{grid-template-columns:1fr}.bk810-public .bk87-footer-grid{gap:28px 18px}.bk810-public .bk87-footer nav a{font-size:11px}
}
@media(prefers-reduced-motion:reduce){.bk810-public .bk89-wordmark{animation:none}.bk810-public :is(.bk81-button,.bk81-grade-grid>a){transition:none!important;transform:none!important}}
@media print{.bk810-public .bk87-footer,.bk810-public .bk810-hero-actions,.bk810-public .bk810-hero-visual,.bk810-public .bk81-toc,.bk810-public .bk810-topic-symbol{display:none!important}.bk810-public .bk81-reading-grid,.bk810-public .bk841-layout{display:block}.bk810-public .bk81-wrap,.bk810-public .bk72-intro,.bk810-public .bk841-guide{padding:0;background:transparent;width:100%;padding-inline:0}.bk810-public .bk72-main,.bk810-public .bk841-article{border:0;padding:0}}