/* Shared product navigation; scoped to avoid application controls. */
:root{--hub-bg:#f8faf9;--hub-paper:#fff;--hub-ink:#22372f;--hub-muted:#60716a;--hub-line:#dbe3de;--hub-accent:#245c49;--hub-tint:#edf3ef}
:root[data-theme=dark]{--hub-bg:#161d20;--hub-paper:#1d272b;--hub-ink:#e3eae6;--hub-muted:#adbab6;--hub-line:#354348;--hub-accent:#b0d2c2;--hub-tint:#253238}
.hub-header,.hub-footer,.hub-page{box-sizing:border-box;color:var(--hub-ink);font-family:Arial,Helvetica,sans-serif}.hub-header{max-width:1240px;margin:auto;padding:18px 32px 20px;border-bottom:1px solid var(--hub-line);display:block;background:transparent;position:relative;z-index:20}.hub-utility{display:flex;justify-content:flex-end;align-items:center;gap:18px;min-height:32px;margin-bottom:12px;font-size:12px}.hub-header a,.hub-footer a{color:inherit;text-decoration:none}.hub-languages{display:flex;gap:3px}.hub-languages a{padding:5px 8px;border-radius:5px}.hub-languages [aria-current]{background:var(--hub-tint)}.hub-theme,.hub-account{width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--hub-line);border-radius:8px;background:var(--hub-paper);color:var(--hub-ink);padding:0;cursor:pointer}.hub-mainnav{display:flex;align-items:center;gap:28px}.hub-brand{display:flex;gap:12px;align-items:center;font-size:24px;font-weight:600;white-space:nowrap;letter-spacing:-.8px;margin-right:auto}.hub-mark{font:italic 38px Georgia,serif;position:relative;line-height:1;width:29px}.hub-mark span{font:12px Arial;position:absolute;right:0;top:-1px}.hub-brand small{font-size:8px;letter-spacing:.8px;align-self:flex-end;margin-bottom:4px;color:var(--hub-muted);font-weight:500}.hub-nav{display:flex;flex-wrap:wrap;align-items:center;gap:20px;font-size:13px}.hub-nav a{padding:9px 0}.hub-nav a[aria-current]{box-shadow:0 1px var(--hub-ink)}.hub-products{position:relative;font-size:13px}.hub-products summary{cursor:pointer;min-height:40px;display:flex;align-items:center;gap:8px}.hub-products summary::after{content:'⌄';font-size:14px}.hub-products div{position:absolute;top:46px;left:0;min-width:230px;padding:10px;background:var(--hub-paper);border:1px solid var(--hub-line);border-radius:10px;box-shadow:0 12px 32px #00000012}.hub-products div a{display:block;padding:12px;border-radius:6px}.hub-products div a:hover{background:var(--hub-tint)}a.hub-launch{background:var(--hub-ink);color:var(--hub-paper);padding:12px 18px;border-radius:8px;font-size:13px;white-space:nowrap}.hub-header :focus-visible,.hub-page :focus-visible,.hub-footer :focus-visible{outline:2px solid var(--hub-accent);outline-offset:4px}
body.hub-body{background:var(--hub-bg);margin:0}.hub-page{max-width:1240px;margin:auto;padding:74px 32px 80px}.hub-intro{max-width:870px;margin-bottom:52px}.hub-intro h1{font-size:clamp(32px,4.3vw,58px);line-height:1.1;letter-spacing:-1.9px;font-weight:500;margin:0 0 24px;text-wrap:balance}.hub-intro p{font-size:18px;line-height:1.6;max-width:68ch;color:var(--hub-muted);margin:0}.hub-product-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.hub-product-card{position:relative;background:var(--hub-paper);border:1px solid var(--hub-line);border-radius:14px;padding:32px;display:flex;flex-direction:column;min-width:0}.hub-product-card .product-name{display:flex;gap:12px;align-items:center;font-size:28px;font-weight:500;letter-spacing:-.7px}.hub-product-card h2{font-size:25px;line-height:1.25;letter-spacing:-.6px;margin:24px 0 12px;font-weight:500;max-width:25ch}.hub-product-card p{font-size:15px;line-height:1.7;color:var(--hub-muted);max-width:60ch;margin:0 0 20px}.hub-tags{display:flex;gap:8px;flex-wrap:wrap;font-size:12px;padding-bottom:26px;margin-top:auto}.hub-tags span{border:1px solid var(--hub-line);border-radius:20px;padding:5px 10px}.hub-card-actions{border-top:1px solid var(--hub-line);padding-top:22px;display:flex;align-items:center;justify-content:space-between;gap:16px}.hub-page a{color:var(--hub-accent);text-underline-offset:4px}.hub-card-actions a{font-size:14px}.hub-page a.hub-launch{color:var(--hub-paper);text-decoration:none}.hub-note{margin-top:32px;font-size:13px!important;line-height:1.6;color:var(--hub-muted)}.hub-intro .hub-card-actions{justify-content:flex-start;border:0;padding-top:28px}.hub-sections{max-width:880px}.hub-section{border-top:1px solid var(--hub-line);padding:30px 0}.hub-section h2{font-size:25px;font-weight:500;letter-spacing:-.4px;margin:0 0 14px}.hub-section p,.hub-section li{font-size:16px;line-height:1.8;color:var(--hub-muted);max-width:76ch}.hub-section p{margin:10px 0}.hub-section li{margin:8px 0}.hub-section a{overflow-wrap:anywhere}.hub-footer{max-width:1240px;margin:auto;padding:36px 32px 40px;border-top:1px solid var(--hub-line)}.hub-footer-top{display:flex;align-items:flex-start;gap:36px;justify-content:space-between}.hub-footer nav{display:flex;flex-wrap:wrap;gap:12px 22px;font-size:13px;line-height:1.6;max-width:900px}.hub-footer p,.hub-footer small{font-size:12px;line-height:1.6;color:var(--hub-muted)}.hub-footer .legal-footer{margin-top:24px;padding-top:20px;border-top:1px solid var(--hub-line)}.hub-footer button{font:inherit;background:transparent;border:0;padding:0;color:inherit;cursor:pointer}.hub-footer .legal-footer nav{font-size:11px}.hub-footer small{display:block;margin-top:16px}
@media(max-width:1000px){.hub-mainnav{gap:18px;flex-wrap:wrap}.hub-brand{flex:1}.hub-nav{order:5;width:100%;gap:22px}.hub-page{padding-top:50px}.hub-product-card{padding:25px}}
@media(max-width:650px){.hub-header{padding:10px 20px 16px}.hub-utility{gap:12px;margin-bottom:14px}.hub-mainnav{gap:16px}.hub-brand{font-size:22px}.hub-brand small{display:none}.hub-nav{gap:8px 18px;font-size:12px}.hub-products div{left:auto;right:0}.hub-page{padding:38px 20px 48px}.hub-intro{margin-bottom:32px}.hub-intro h1{letter-spacing:-1px}.hub-intro p{font-size:16px}.hub-product-grid{grid-template-columns:1fr;gap:18px}.hub-product-card{padding:24px}.hub-product-card h2{font-size:24px}.hub-footer{padding:28px 20px}.hub-footer-top{flex-direction:column;gap:24px}.hub-card-actions{flex-wrap:wrap}.hub-section h2{font-size:23px}}
@media(prefers-reduced-motion:reduce){.hub-page *{scroll-behavior:auto}}

.hub-product-card a.product-name{color:var(--hub-ink);text-decoration:none}

/* Preserve the pre-hub Foldiff wordmark on the main RU/EN homepages. */
.hub-header-original .hub-brand{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:23px;font-weight:650;letter-spacing:-1px;gap:11px}
.hub-header-original .hub-mark{font:normal 36px/1 Georgia,serif;width:auto}
.hub-header-original .hub-mark span{position:static;font:16px sans-serif;vertical-align:baseline;margin-left:1px}
@media(max-width:650px){.hub-header-original .hub-brand{font-size:21px}}

/* The hub uses the original standalone Foldiff palette; CellFate uses its app tokens. */
:root[data-product=hub]{--hub-bg:#faf9f7;--hub-paper:#ffffff;--hub-ink:#14161a;--hub-muted:#4a4f57;--hub-line:#e6e3dd;--hub-accent:#8f3324;--hub-tint:#f7efed;--hub-on-accent:#ffffff;color-scheme:light}
:root[data-product=hub][data-theme=dark]{--hub-bg:#0e0f11;--hub-paper:#17191c;--hub-ink:#f2f3f4;--hub-muted:#b6bcc4;--hub-line:#26292e;--hub-accent:#d4705c;--hub-tint:#2d1c18;--hub-on-accent:#14161a;color-scheme:dark}
:root[data-product=hub] a.hub-launch{background:var(--hub-accent);color:var(--hub-on-accent)}
:root[data-product=cellfate]{--hub-bg:#fdfefc;--hub-paper:#ffffff;--hub-ink:#1c2c26;--hub-muted:#4c5e54;--hub-line:#dfe5df;--hub-accent:#365f52;--hub-tint:#f5f8f3;color-scheme:light}
:root[data-product=cellfate][data-theme=dark]{--hub-bg:#111419;--hub-paper:#1b1f26;--hub-ink:#eeeae3;--hub-muted:#b0b6c0;--hub-line:#3b444f;--hub-accent:#adcab9;--hub-tint:#242a33;color-scheme:dark}
/* Shared storage/install dialogs inherit the active product's palette too. */
:root[data-product]{--paper:var(--hub-bg);--surface:var(--hub-paper);--ink:var(--hub-ink);--muted:var(--hub-muted);--line:var(--hub-line);--accent:var(--hub-accent);--green:var(--hub-accent)}