/* Current Sophont header, isolated from page content.
   Keep its dimensions independent of the legacy articles' 14px mobile root. */
@font-face { font-family: Manrope; src: url("../fonts/Manrope-Variable.woff2") format("woff2"); font-style: normal; font-weight: 200 800; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("../fonts/IBMPlexMono-Regular.woff2") format("woff2"); font-style: normal; font-weight: 400; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("../fonts/IBMPlexMono-Medium.ttf") format("truetype"); font-style: normal; font-weight: 500; font-display: swap; }
.nav {
  --sophont-electric: #2233bb;
  --sophont-electric-hover: #182899;
  --sophont-midnight: #08082a;
  --sophont-ink: #20222c;
  --sophont-copy: #343640;
  --sophont-muted: #626674;
  --sophont-paper: #f8f5fa;
  --sophont-surface-raised: #eaeaf3;
  --sophont-panel: #ffffff;
  --sophont-rule: rgba(8, 8, 42, 0.08);
  --sophont-rule-strong: rgba(8, 8, 42, 0.17);
  --font-sans: "Manrope", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --text-caption: 15px;
  --text-control: 16px;
  --radius-pill: 999px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --bg: var(--sophont-paper);
  --bg-raised: var(--sophont-surface-raised);
  --bg-panel: var(--sophont-panel);
  --fg: var(--sophont-ink);
  --fg-soft: var(--sophont-copy);
  --fg-mute: var(--sophont-muted);
  --rule: var(--sophont-rule);
  --rule-strong: var(--sophont-rule-strong);
  --electric: var(--sophont-electric);
  --ice: var(--sophont-electric);
  --logo-filter: none;
  --font-body: var(--font-sans);
  --font-display: var(--font-sans);
}
body.theme-brand .nav { background: color-mix(rgb(238, 244, 255) 85%, transparent); }
.nav { position: sticky; top: 0px; z-index: 50; display: flex; align-items: center; justify-content: space-between; padding: 18px 0px; background: color-mix(in oklab, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--rule); }
.nav-brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 500; font-size: 18px; letter-spacing: -0.01em; flex-shrink: 0; }
.nav-brand img { max-width: min(136px, 36vw); }
.nav-brand .logo { width: 28px; height: 28px; position: relative; }
.nav-links { display: flex; gap: 28px; font-size: 15px; color: var(--fg-soft); font-family: var(--font-sans); text-transform: none; letter-spacing: normal; }
.nav-links a { position: relative; transition: color .2s var(--ease); }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--fg); }
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after { content: ""; position: absolute; left: 0px; bottom: -6px; width: 100%; height: 1px; background: var(--electric); }
.nav-cta { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; border: 1px solid var(--rule-strong); border-radius: 999px; font-family: var(--font-sans); font-size: 15px; letter-spacing: normal; text-transform: none; white-space: nowrap; transition: border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease); }
.nav-menu-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 40px; height: 40px; padding: 9px; margin-left: 2px; border: 1px solid var(--rule-strong); border-radius: 10px; flex-shrink: 0; transition: border-color .2s var(--ease), background .2s var(--ease); }
.nav-menu-toggle span { display: block; width: 100%; height: 1.5px; background: var(--fg); border-radius: 2px; transition: transform .25s var(--ease), opacity .2s var(--ease); }
.nav-menu-toggle:hover { border-color: var(--electric); background: color-mix(in oklab, var(--electric) 8%, transparent); }
.nav-open .nav-menu-toggle span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-open .nav-menu-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-menu-toggle span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
.nav-mobile-menu { position: absolute; top: 100%; left: calc(50% - 50vw); right: calc(50% - 50vw); display: none; flex-direction: column; padding: 8px 20px 16px; background: var(--bg); border-bottom: 1px solid var(--rule-strong); box-shadow: rgba(8, 8, 42, 0.25) 0px 24px 48px -24px; }
.nav-mobile-menu a { padding: 14px 4px; font-family: var(--font-sans); font-size: 15px; letter-spacing: normal; text-transform: none; color: var(--fg-soft); border-bottom: 1px solid var(--rule); transition: color .2s var(--ease), padding-left .2s var(--ease); }
.nav-mobile-menu a:last-child { border-bottom: 0px; }
.nav-mobile-menu a:hover, .nav-mobile-menu a[aria-current="page"] { color: var(--fg); }
@media (max-width: 1100px) {
.nav-links { display: none; }
.nav { justify-content: flex-start; }
.nav-cta { margin-left: auto; }
.nav-menu-toggle { display: inline-flex; }
.nav.nav-open .nav-mobile-menu { display: flex; animation: nav-menu-in .22s var(--ease-out) both; }
}
@media (max-width: 560px) {
.nav { gap: 14px; }
.nav-cta { padding: 8px 12px; font-size: 15px; letter-spacing: normal; }
.nav-brand img { max-width: 118px; }
}
.nav { min-height: 64px; padding-block: 8px; background: var(--sophont-paper); backdrop-filter: none; }
.nav-brand { min-height: 44px; display: inline-flex; align-items: center; }
.nav-brand img { max-width: 30vw; object-fit: contain; transform: translateY(-9%); width: 112px !important; height: auto !important; }
.nav-links { gap: 24px; }
.nav-links a, .nav-cta, .nav-mobile-menu a { font-family: var(--font-sans); font-size: var(--text-caption); font-weight: 500; letter-spacing: normal; text-transform: none; line-height: 1.5; min-height: 44px; display: inline-flex; align-items: center; color: var(--sophont-copy); }
.nav-cta { white-space: normal; min-width: 0px; overflow-wrap: anywhere; }
.nav-cta .status-dot { display: none; }
.nav-menu-toggle { min-width: 44px; min-height: 44px; flex-shrink: 0; }
.nav-mobile-menu { background: var(--sophont-paper); max-height: calc(100dvh - 80px); overflow-y: auto; }
.nav-mobile-menu a { display: flex; font-size: 16px; min-height: 48px; }
body :is(.nav-cta, .nav-access) { display: inline-flex; align-items: center; justify-content: center; font: 500 var(--text-control)/1.4 var(--font-sans); min-height: 44px; padding: 10px 18px; border: 1.5px solid transparent; letter-spacing: normal; text-transform: none; border-radius: var(--radius-pill); white-space: normal; text-decoration: none; box-shadow: rgba(34, 51, 187, 0.4) 0px 0px 0px 0px; transition: box-shadow 120ms var(--ease-out), transform 120ms var(--ease-out); }
body :is(.nav-menu-toggle) { transition-duration: 120ms; transition-timing-function: var(--ease-out); transition-delay: 0s; }
body :is(.nav-access) { color: rgb(255, 255, 255); background: var(--sophont-electric); border-color: var(--sophont-electric); }
/* Partner CTA: the dark navy pill from the Holon launch header (holon/paul-nav.css). */
body :is(.nav-cta) { gap: 22px; padding: 10px 19px; border-width: 1px; line-height: 1.5; color: rgb(255, 255, 255); background: #10102e; border-color: #10102e; transition: background 200ms, transform 200ms; }
body .nav-cta::after { content: "↗"; content: "↗" / ""; }
@media (hover: hover) {
body :is(.nav-cta, .nav-access):hover:not(:disabled) { box-shadow: rgba(34, 51, 187, 0.2) 0px 0px 0px 8px; transform: translateY(-1px); }
body :is(.nav-access):hover:not(:disabled) { border-color: var(--sophont-electric-hover); background: var(--sophont-electric-hover); }
body :is(.nav-cta):hover:not(:disabled) { background: #252d58; color: rgb(255, 255, 255); box-shadow: none; transform: translateY(-2px); }
}
@media (prefers-reduced-motion: reduce) {
body :is(.nav-cta, .nav-access):hover:not(:disabled) { transform: none; }
}
@media (max-width: 640px) {
.nav { padding-inline: 0px; gap: 8px; }
body a.nav-cta { padding: 6.4px 9.6px; }
body a.nav-cta::after { content: none; }
}
@media (max-width: 360px) {
.nav-brand img { width: 96px !important; }
body a.nav-cta { font-size: 14px; padding-inline: 8px; }
}
@media print {
.nav { display: none !important; }
}
.home-page .nav { padding-inline: 0px; }
@media (max-width: 1100px) {
.home-page .nav-links { gap: 16px; }
}
.nav { color: var(--sophont-copy); font-family: var(--font-sans); font-size: 17px; line-height: 1.65; }
.nav button { font-family: var(--font-sans); font-size: var(--text-control); }
.nav :focus-visible { outline: 3px solid var(--sophont-electric); outline-offset: 4px; }
/* Blog: a soft electric chip so it stands out without competing with the solid Partner CTA.
   The chip is drawn on ::before (::after carries the hover underline) and bleeds into the
   link gap, so the nav layout doesn't move. Matched by suffix so absolute URLs count too. */
.nav-links a[href$="/blog/"] { isolation: isolate; color: var(--sophont-electric); }
.nav-links a[href$="/blog/"]::before { content: ""; position: absolute; z-index: -1; inset: 50% -12px auto; height: 32px; transform: translateY(-50%); border-radius: var(--radius-pill); background: #e4e6f8; transition: background .2s var(--ease-out); }
.nav-links a[href$="/blog/"]:hover { color: var(--sophont-electric); }
.nav-links a[href$="/blog/"]:hover::before { background: #d6daf4; }
.nav-links a[href$="/blog/"]::after { content: none; }
.nav-mobile-menu a[href$="/blog/"] { color: var(--sophont-electric); }
/* When the other links fold into the menu, keep Blog visible beside the Partner CTA. */
@media (min-width: 600px) and (max-width: 1100px) {
.nav-links { display: flex; margin-left: auto; }
.nav-links a:not([href$="/blog/"]) { display: none; }
.nav-links ~ .nav-cta { margin-left: 24px; }
}