.theme-picker{position:relative}.theme-picker #themeToggle{white-space:nowrap}.theme-picker #themeMenu{position:absolute;right:0;top:calc(100% + 8px);z-index:45;min-width:160px;padding:6px;background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow)}#themeMenu[hidden]{display:none}#themeMenu button{display:block;width:100%;text-align:left;border:0;border-radius:4px;padding:11px 12px;background:transparent;color:var(--ink);cursor:pointer;white-space:nowrap}#themeMenu button:hover,#themeMenu button:focus-visible{background:var(--bg)}#themeMenu button[aria-pressed="true"]{font-weight:700;color:var(--green)}#themeMenu button[aria-pressed="true"]::after{content:" ✓"}.navlinks .more-link{white-space:nowrap}.footer-contact{display:flex;align-items:center;gap:12px}.footer-contact a{color:inherit}.footer-contact .btn{color:inherit;height:34px}.brand-caption{display:none}.footer-brand-name{font:inherit}.footer-brand-name::after{content:" · "}
/* Desktop chrome only: the catalog and <=850px layouts stay intact. */
@media(min-width:851px){
.topbar{background:var(--paper)}
.nav{height:76px;gap:24px;justify-content:space-between}
.brand-group{display:flex;flex-direction:column;gap:5px;flex-shrink:0}
.brand{line-height:1;font-size:24px;letter-spacing:-1px}
.brand-caption{display:block;color:var(--caption);font-size:12px;line-height:1.4}
.navlinks{align-items:center;gap:8px;flex-wrap:nowrap;margin-left:auto}
.navlinks>a{padding:10px 14px;color:var(--caption);white-space:nowrap}
.navlinks .desktop-sources-link{display:none}
.navlinks .btn{height:40px;border-radius:6px;font-size:13px;font-weight:500}
.navlinks .contact-link{background:var(--primary-bg);color:var(--primary-text);border-color:var(--primary-bg);margin-left:12px;padding:0 16px}
.contact-mobile{display:none}
.navlinks .more-link{border-color:var(--control-line);color:var(--ink);background:transparent;padding:0 14px}
.navlinks>a:hover:not(.contact-link){background:var(--hover-bg);color:var(--ink);border-radius:6px}
.topbar :focus-visible,footer :focus-visible{outline:3px solid var(--green);outline-offset:4px}
.hero{padding:36px 0 26px}
.hero-grid{display:block}
.hero h1{font-size:44px;line-height:1.2;letter-spacing:-2px;margin:12px 0 8px}
.hero h1 br{display:none}
.hero .lead{font-size:16px;margin:0;line-height:1.8}
.kicker{letter-spacing:1.4px;font-size:11px}
#tools,#sources{scroll-margin-top:94px}
.sources{padding:0;scroll-margin-top:94px}
.sources>p:first-child{display:none}
.sources #feedback-status:empty{display:none}
footer{background:var(--paper);color:var(--ink);border-top:1px solid var(--line);padding:28px 0}
.foot{align-items:center;gap:24px;color:var(--caption);font-size:12px}
.footer-brand{display:flex;flex-direction:column;gap:7px}
.footer-brand-name{font-size:16px;font-weight:700;letter-spacing:-.4px;color:var(--ink)}
.footer-brand-name::after{content:none}
.footer-note{line-height:1.6}
.footer-contact{gap:16px;flex-shrink:0}
.footer-contact a{text-decoration:none;font-size:13px}
.footer-contact a:hover{text-decoration:underline;color:var(--ink)}
.footer-contact .btn{height:36px;border-color:var(--control-line);border-radius:6px;color:var(--ink);font-weight:500;font-size:13px}
}
.ai-deployment{margin-top:10px;padding:10px;border:1px solid var(--line);border-radius:6px}.ai-deployment summary{font-weight:600;color:var(--ink)}.ai-deployment pre{max-width:100%;white-space:pre-wrap;overflow-wrap:anywhere;padding:10px;background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:4px}.ai-deployment p{line-height:1.7}
#aiSearch,#moreSearch{display:block;width:100%;box-sizing:border-box;margin:8px 0;padding:12px;border:1px solid var(--line);background:var(--paper);color:var(--ink);font:inherit}#moreTools{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.more-tool{justify-content:space-between;text-align:left;gap:12px}.more-tool span{font-weight:400;color:var(--muted);white-space:nowrap}#moreSources{margin-bottom:20px}.more-sections{display:grid;gap:12px}.more-sections .btn{height:auto;min-height:72px;display:flex;align-items:flex-start;flex-direction:column;padding:16px;text-align:left}.more-sections span,.ai-note{font-size:13px;color:var(--muted);font-weight:400}.ai-card{border:1px solid var(--line);border-radius:8px;padding:16px;margin:12px 0}.ai-card h3{margin:0 0 12px}.ai-card small{display:block;color:var(--muted);font-size:12px;font-weight:400;margin-top:4px}.ai-card dl{display:grid;grid-template-columns:88px minmax(0,1fr);gap:10px;margin:0 0 12px;font-size:14px;line-height:1.7}.ai-card dt{font-weight:600}.ai-card dd{margin:0;overflow-wrap:anywhere}.ai-card a{color:inherit;text-decoration:underline}.ai-actions{display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:6px}.ai-card details{font-size:12px;color:var(--muted)}.ai-card summary{cursor:pointer}.ai-card ul{padding-left:20px}@media(max-width:570px){.ai-card{padding:12px}.ai-card dl{grid-template-columns:1fr;gap:3px}.ai-card dd{margin-bottom:8px}}#moreDialog [hidden]{display:none!important}@media(max-width:570px){#moreTools{grid-template-columns:1fr}.navlinks{gap:5px}.navlinks .more-link{padding:0 9px;height:42px}.footer-contact{flex-wrap:wrap}#moreDialog h2{font-size:18px}}

/* Mobile footer: one compact information/action block, no duplicate floating contact. */
@media(max-width:570px){.mobile-contact{display:none}.sources{padding:0}.sources>p:first-child,.sources #feedback-status:empty{display:none}.sources #feedback-status:not(:empty){margin:16px 0}footer{background:var(--paper);color:var(--ink);border-top:1px solid var(--line);padding:22px 0 calc(22px + env(safe-area-inset-bottom))}.foot{display:flex;flex-direction:column;align-items:stretch;gap:16px;color:var(--muted);font-size:12px}.footer-brand{display:flex;flex-direction:column;gap:5px}.footer-brand-name{color:var(--ink);font-size:17px;font-weight:700;letter-spacing:-.4px}.footer-brand-name::after{content:none}.footer-note{line-height:1.6}.footer-contact{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:nowrap}.footer-contact a{font-size:13px;text-decoration:none;color:var(--ink)}.footer-contact .btn{height:38px;border:1px solid var(--control-line);border-radius:6px;background:transparent;color:var(--ink);font-size:13px;font-weight:500;padding:0 14px}}
@keyframes dock-dialog-in{from{opacity:0;transform:translateY(12px) scale(.985)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes dock-dialog-out{from{opacity:1;transform:translateY(0) scale(1)}to{opacity:0;transform:translateY(8px) scale(.99)}}@keyframes dock-backdrop-in{from{opacity:0}to{opacity:1}}@keyframes dock-backdrop-out{from{opacity:1}to{opacity:0}}dialog[open]{animation:dock-dialog-in 230ms cubic-bezier(.2,.75,.2,1) both;transform-origin:50% 45%}dialog[open]::backdrop{animation:dock-backdrop-in 210ms ease-out both}dialog[data-closing]{animation:dock-dialog-out 150ms ease-in both;pointer-events:none}dialog[data-closing]::backdrop{animation:dock-backdrop-out 150ms ease-in both}@media(prefers-reduced-motion:reduce){dialog[open],dialog[open]::backdrop,dialog[data-closing],dialog[data-closing]::backdrop{animation:none!important}}
/* No colored automatic-focus frames; retain a quiet keyboard-only indicator. */
button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,.topbar :focus-visible,footer :focus-visible{outline:none;box-shadow:none}html[data-keyboard-focus] button:focus-visible,html[data-keyboard-focus] a:focus-visible,html[data-keyboard-focus] summary:focus-visible,html[data-keyboard-focus] input:focus-visible,html[data-keyboard-focus] textarea:focus-visible{outline:1px dashed var(--muted);outline-offset:3px}
/* Per-product guidance shares dialog/card theme tokens; native details adds no motion. */
.product-guidance,.guidance-evidence{margin:16px 0;padding:14px;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--ink);font-size:14px;line-height:1.7;overflow-wrap:anywhere}.ai-card .product-guidance{font-size:14px;color:var(--ink)}.product-guidance>summary{cursor:pointer;font-weight:600;color:var(--ink)}.product-guidance h4,.guidance-evidence h4{margin:16px 0 6px;font-size:14px}.product-guidance ul,.guidance-evidence ul{padding-left:20px;margin:6px 0}.product-guidance li,.guidance-evidence li{margin:10px 0}.guidance-sources{display:flex;flex-wrap:wrap;gap:4px 12px;margin-top:4px;font-size:12px;color:var(--muted)}.guidance-sources a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}.guidance-sources small{display:inline;font:inherit;color:var(--muted)}.guidance-date,.guidance-scope{color:var(--muted);font-size:12px}.guidance-scope{border-top:1px solid var(--line);padding-top:10px}@media(max-width:570px){.product-guidance,.guidance-evidence{padding:12px;font-size:14px}.guidance-sources{gap:6px 12px}}
/* Preferences remain reachable at every breakpoint. */
.display-settings{display:flex;align-items:center;gap:6px;flex-shrink:0}.navlinks #localeToggle,.navlinks #themeToggle,.navlinks .more-link{height:40px;border:1px solid var(--control-line);border-radius:6px;background:transparent;color:var(--ink);font:500 13px var(--sans);padding:0 14px;white-space:nowrap;cursor:pointer}#localeToggle{min-width:76px}.navlinks #localeToggle:hover,.navlinks #themeToggle:hover{background:var(--bg)}
@media(max-width:850px){.navlinks{align-items:center;gap:6px}.nav{height:auto;min-height:68px;padding-top:10px;padding-bottom:10px}.display-settings{gap:4px}}
@media(max-width:570px){.nav{flex-wrap:wrap;justify-content:space-between;gap:8px}.navlinks{flex-wrap:wrap;justify-content:flex-end;gap:5px;max-width:100%}.display-settings{order:1}.navlinks #localeToggle,.navlinks #themeToggle,.navlinks .more-link{height:34px;padding:0 10px;font-size:12px}#localeToggle{min-width:70px}.navlinks .contact-link{height:34px}.navlinks .more-link{height:34px}}