/* Readable black interface text; retain the original logo artwork. */
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.document-reader,.document-reader #description,.document-reader #status,.document-reader #error,.document-reader #error-copy,.document-reader a,.document-reader h1,.document-reader label,.document-reader input,.document-reader button,.document-reader span{color:#000}.shell main .card,.shell main .formula,.shell main .book-row,.shell main .resource-meta,.shell main input{color:#000}
.global-home{position:fixed;right:max(16px,env(safe-area-inset-right));bottom:max(14px,env(safe-area-inset-bottom));z-index:30;display:flex;align-items:center;gap:8px;padding:11px 16px;border:1px solid #a8d0e9;border-radius:24px;background:linear-gradient(135deg,#fff,#d9efff);box-shadow:0 4px 16px #254d7428;color:#000;font:600 14px/1.2 Arial,sans-serif;text-decoration:none;min-height:44px}.global-home:focus-visible{outline:3px solid #2788ca;outline-offset:3px}.home-ru{display:none}html[lang=ru] .home-kk{display:none}html[lang=ru] .home-ru{display:inline}.shell footer{padding-bottom:80px}.document-reader .reader-main{padding-bottom:85px}