/* The home page's top bar and footer, for the pages the build scripts write
   (articles, the art index, legal). Copied from the home page's own styles
   and scoped to .snav, .mnav and .sfoot so it can sit beside article.css.
   Markup: scripts/site-nav-footer.mjs. Change both with the home page. */
.snav,.sfoot{--ink:#121A2B;--gray:#6B6B6B;--paper:#F7F5F0;--desk:#EDEAE2;--soft:#3a4152;--line:#dcd8cd;font-family:"Instrument Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
.snav *,.sfoot *{box-sizing:border-box}
.snav .w,.sfoot .w{max-width:1160px;margin:0 auto;padding:0 24px}
.snav .btn,.sfoot .btn{display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:var(--paper);border-radius:999px;padding:13px 22px;font-weight:600;font-size:15px;line-height:1.55;text-decoration:none}

/* top bar */
.snav{position:sticky;top:0;z-index:100;background:rgba(247,245,240,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:var(--ink);font-size:17px;line-height:1.55}
.snav>.w{display:flex;align-items:center;justify-content:space-between;height:68px}
.snav a{color:inherit}
.snav .lockup{display:flex;align-items:center;gap:9px;text-decoration:none}
.snav .navlinks{display:flex;gap:28px;align-items:center;font-size:15px;font-weight:500}
.snav .navlinks a:not(.btn){text-decoration:none}
.snav .menubtn{display:none;position:relative;width:44px;height:44px;margin-right:-10px;padding:0;border:0;background:none;color:var(--ink);cursor:pointer}
.snav .menubtn i{position:absolute;left:11px;width:22px;height:2px;border-radius:1px;background:currentColor;transition:transform .2s ease}
.snav .menubtn i:first-child{top:17px}.snav .menubtn i:last-child{top:25px}
.snav .menubtn[aria-expanded="true"] i:first-child{transform:translateY(4px) rotate(45deg)}
.snav .menubtn[aria-expanded="true"] i:last-child{transform:translateY(-4px) rotate(-45deg)}
.snav .mnav{background:var(--paper);border-top:1px solid var(--line);box-shadow:0 14px 24px rgba(18,26,43,.08);max-height:calc(100vh - 68px);overflow-y:auto}
.snav .mnav[hidden]{display:none}
.snav .mnav .w{display:block;height:auto;padding-top:6px;padding-bottom:14px}
.snav .mnav a{display:block;padding:15px 0;font-size:20px;font-weight:600;letter-spacing:-.01em;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--line)}
.snav .mnav a:last-child{border-bottom:0}
@media (min-width:861px){.snav .mnav{display:none!important}}
@media (max-width:860px){
 .snav .navlinks a:not(.btn){display:none}
 .snav .navlinks{gap:6px}.snav .menubtn{display:block}
}

/* footer: ink, the page slides off it at the end. The page keeps the home page's room at its foot, so the last block never sits on the footer's edge. */
body>main{padding-bottom:104px}
html.freveal body>main{position:relative;z-index:1;background:var(--desk,#EDEAE2);box-shadow:0 1px 0 rgba(0,0,0,.28),0 26px 54px -6px rgba(0,0,0,.62)}
.sfoot{background:var(--ink);color:var(--paper);font-size:17px;line-height:1.55;position:relative}
html.freveal .sfoot{position:sticky;bottom:min(0px,100vh - var(--foot-h,0px));bottom:min(0px,100dvh - var(--foot-h,0px));z-index:0}
html.freveal .sfoot:has(.ai-split-main[aria-expanded="true"]){z-index:2}
.sfoot .fmain{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:56px 64px;align-items:start;padding-top:104px;padding-bottom:80px}
.sfoot .fhead{display:flex;flex-direction:column;align-items:flex-start;gap:22px}
.sfoot .fline{margin:0;font-size:clamp(34px,3.4vw,46px);line-height:1.1;font-weight:700;letter-spacing:-.025em;text-wrap:balance;color:var(--paper)}
.sfoot .hl{background:linear-gradient(96.1deg,rgba(0,0,0,0) .12em,var(--paper) calc(.12em + 1px),var(--paper) calc(100% - .12em - 1px),rgba(0,0,0,0) calc(100% - .12em));background-repeat:no-repeat;background-size:100% 1.04em;background-position:0 .17em;padding:0 .26em;margin:0 -.16em;-webkit-box-decoration-break:clone;box-decoration-break:clone;color:var(--ink);mix-blend-mode:normal}
.sfoot .fsub{margin:0;font-size:17px;line-height:1.55;color:#c9cdd6;max-width:26em}
.sfoot .btn.paper{background:var(--paper);color:var(--ink);margin-top:6px}.sfoot .btn.paper:hover{background:#fff}
.sfoot nav.fnav{position:static;background:none;backdrop-filter:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px 28px;padding-top:10px}
.sfoot .fnav h2{margin:0 0 10px;font-family:inherit;font-size:14px;line-height:1.3;font-weight:700;letter-spacing:0;color:#9aa0ab}
.sfoot .fnav ul,.sfoot .fmeta{list-style:none;margin:0;padding:0}
.sfoot a:not(.btn){color:var(--paper);text-decoration:none}
.sfoot a:not(.btn):hover{text-decoration:underline;text-underline-offset:4px}
.sfoot .fnav a{display:inline-flex;align-items:center;min-height:40px;font-size:16px;line-height:1.35}
.sfoot .fbase{border-top:1px solid rgba(247,245,240,.14);padding:20px 0 36px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 32px}
.sfoot .fbrand{display:flex;flex-wrap:wrap;align-items:center;gap:6px 20px;font-size:14px;color:#9aa0ab}
.sfoot .fbrand a{display:inline-flex;align-items:center;min-height:44px}
.sfoot .fmeta{display:flex;flex-wrap:wrap;gap:0 24px}
.sfoot .fmeta a{display:inline-flex;align-items:center;gap:8px;min-height:40px;font-size:15px}
@media (max-width:860px){
 body>main{padding-bottom:80px}
 .sfoot .fmain{grid-template-columns:minmax(0,1fr);gap:48px;padding-top:144px;padding-bottom:56px}
 .sfoot nav.fnav{grid-template-columns:minmax(0,1fr);gap:32px}
 .sfoot .fnav ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:20px}
 .sfoot .fbase{flex-direction:column;align-items:flex-start;gap:4px}
}

/* the footer's Ask your AI menu (script: /assets/ask-ai.js), opening upward */
.sfoot .icon{width:1em;height:1em;display:inline-block;fill:currentColor;vertical-align:middle}
.sfoot .ai-menu{position:relative;display:inline-block;margin:0}
.sfoot .ai-split-main{font:inherit;display:inline-flex;align-items:center;gap:8px;cursor:pointer;background:none;border:0;color:inherit;padding:0}
.sfoot .ai-split-main .icon{font-size:17px}.sfoot .ai-split-main .ai-caret{font-size:12px;transition:transform .2s ease}
.sfoot .ai-split-main[aria-expanded="true"] .ai-caret{transform:rotate(180deg)}
.sfoot .ai-dropdown{position:absolute;top:auto;bottom:calc(100% + 10px);left:auto;right:0;width:min(310px,calc(100vw - 32px));background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:10px;box-shadow:0 18px 40px rgba(18,26,43,.22);padding:6px;z-index:20;text-align:left}
.sfoot .ai-dropdown[hidden]{display:none}
.sfoot .ai-item{display:flex;align-items:flex-start;gap:12px;width:100%;padding:10px;border:0;border-radius:7px;background:transparent;color:var(--ink);font:inherit;text-align:left;text-decoration:none;cursor:pointer}
.sfoot .ai-item:hover,.sfoot .ai-item:focus-visible{background:var(--desk);outline:none}
.sfoot .fnav a.ai-item:not(.btn){display:flex;min-height:0;font-size:inherit;color:var(--ink)}.sfoot .fnav a.ai-item:not(.btn):hover{text-decoration:none}
.sfoot .ai-item-icon{display:inline-flex;padding-top:1px}.sfoot .ai-item-icon .icon{font-size:20px}
.sfoot .ai-item-text{display:flex;flex-direction:column;gap:1px}
.sfoot .ai-item-title{font-size:15px;font-weight:600;line-height:1.3}
.sfoot .ai-item-sub{font-size:13px;color:var(--soft);line-height:1.35}
.sfoot .ai-item-arrow{margin-left:auto;align-self:center;font-size:14px;color:var(--gray)}
.sfoot .fai .ai-split-main{min-height:40px;font-size:16px;line-height:1.35;color:var(--paper);text-align:left;white-space:nowrap}.sfoot .fai .ai-split-main>.icon:first-child{display:none}
.sfoot .fai .ai-split-main:hover .ai-split-label{text-decoration:underline;text-underline-offset:4px}
@media (max-width:560px){.sfoot .fai .ai-dropdown{position:fixed;left:16px;right:16px;bottom:16px;width:auto}}