.site-header,.site-header *{box-sizing:border-box}
.site-header{position:sticky;top:0;z-index:100;line-height:1.5;font-family:var(--sans);color:var(--ink);background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid var(--line)}
.site-header>.shell{width:100%;max-width:1440px;padding:0 40px;margin:auto}
.site-header .scroll-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;background:linear-gradient(90deg,var(--cyan),#fbbf24);transform-origin:0 50%;transform:scaleX(0);pointer-events:none}
/* Banner: status · ticker · clock */
.site-header .banner{display:flex;align-items:center;gap:20px;min-height:32px;font:10px var(--mono);letter-spacing:.1em;color:var(--ink-3);border-bottom:1px solid var(--line);overflow:hidden;transition:min-height .25s,opacity .25s}
.site-header .banner-status{display:flex;align-items:center;gap:8px;white-space:nowrap;color:var(--ink-2)}
.site-header .banner .dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#22c55e;box-shadow:0 0 8px #22c55e;animation:hdrBlink 2.4s infinite}
.site-header .banner-ticker{flex:1;overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
.site-header .banner-ticker-track{display:flex;gap:18px;width:max-content;animation:hdrTicker 48s linear infinite;white-space:nowrap}
.site-header .banner-ticker-track i{font-style:normal;color:var(--cyan)}
.site-header .banner-right{display:flex;align-items:center;gap:16px;white-space:nowrap}
.site-header .banner-clock{font-variant-numeric:tabular-nums}
.site-header .preview-badge{color:var(--cyan)}
@keyframes hdrTicker{to{transform:translateX(-50%)}}
@keyframes hdrBlink{50%{opacity:.35}}
.site-header.compact .banner{min-height:0;height:0;opacity:0;border-bottom-color:transparent}
.site-header .header-inner{display:flex;align-items:center;gap:20px;min-height:72px;transition:min-height .25s}
.site-header.compact .header-inner{min-height:60px}
.site-header .brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;text-decoration:none;color:var(--ink)}
.site-header .brand-mark{display:block;width:38px;height:40px}
.site-header .brand-mark img{display:block;width:100%;height:100%;object-fit:contain}
.site-header .brand-word{font-size:21px;font-weight:700;letter-spacing:-.02em}
/* Primary nav */
.site-header .site-nav{display:flex;align-items:center;gap:6px;margin:0 auto}
.site-header .site-nav>a,.site-header summary{display:flex;align-items:center;gap:6px;padding:10px 14px;border-radius:999px;font:500 14px var(--sans);color:var(--ink-2);white-space:nowrap;text-decoration:none;cursor:pointer;list-style:none;transition:color .15s,background .15s}
.site-header summary::-webkit-details-marker{display:none}
.site-header summary .caret{width:10px;height:6px;fill:none;stroke:currentColor;stroke-width:1.6;transition:transform .2s}
.site-header details[open]>summary .caret{transform:rotate(180deg)}
.site-header .site-nav>a:hover,.site-header summary:hover,.site-header details[open]>summary{color:var(--ink);background:var(--bg-2)}
.site-header .site-nav-menu{position:static}
.site-header .nav-mobile-actions{display:none}
/* Mega panels */
.site-header .site-nav-options.mega{position:absolute;left:50%;top:calc(100% - 6px);transform:translateX(-50%);width:min(820px,calc(100vw - 48px));display:grid;grid-template-columns:1.25fr 1fr;gap:8px;padding:18px;max-height:min(78vh,var(--menu-space,78vh));overflow:auto;background:var(--bg-1);border:1px solid var(--line-strong);border-radius:14px;box-shadow:0 24px 60px #0006,0 0 0 1px #ffffff08 inset;animation:megaIn .18s ease-out}
.site-header .site-nav-options.mega.wide{grid-template-columns:1fr;width:min(880px,calc(100vw - 48px))}
@keyframes megaIn{from{opacity:0;transform:translate(-50%,-6px)}}
.site-header .mega-col{display:flex;flex-direction:column;gap:2px;padding:6px}
.site-header .mega-partner-col{background:var(--bg-2);border-radius:10px;padding:12px}
.site-header .mega-head{display:flex;align-items:center;gap:8px;margin:0 0 8px;padding:0 8px;font:10px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3)}
.site-header .mega-note{margin-left:auto;text-transform:none;letter-spacing:0;font:11px var(--sans);color:var(--ink-3)}
.site-header .mega-item{display:flex;gap:12px;align-items:flex-start;padding:10px;border-radius:10px;text-decoration:none;color:var(--ink);transition:background .15s}
.site-header .mega-item:hover,.site-header .mega-item:focus-visible{background:var(--bg-2)}
.site-header .mega-item strong{display:block;font:500 14px/1.35 var(--sans)}
.site-header .mega-item small{display:block;margin-top:2px;font:12.5px/1.4 var(--sans);color:var(--ink-3)}
.site-header .mi{display:grid;place-items:center;flex-shrink:0;width:36px;height:36px;border-radius:9px;background:color-mix(in srgb,var(--cyan) 14%,transparent);color:var(--cyan)}
.site-header .mi svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.site-header .mega-item:hover .mi{background:var(--cyan);color:#09101c}
.site-header .mega-partner{display:flex;align-items:center;gap:10px;padding:9px 8px;border-radius:8px;font:13.5px var(--sans);color:var(--ink-2);text-decoration:none}
.site-header .mega-partner:hover{background:var(--bg-1);color:var(--ink)}
.site-header .nav-lock{display:inline-flex;align-items:center;gap:4px;margin-left:auto;color:var(--cyan);font:9px var(--mono);letter-spacing:.06em;text-transform:uppercase;white-space:nowrap}
.site-header .mega-head .nav-lock{margin-left:0}
.site-header .nav-lock svg{width:11px;height:11px;fill:none;stroke:currentColor;stroke-width:1.3}
.site-header .mega-more{margin-top:auto;padding:10px 8px 2px;font:500 13px var(--sans);color:var(--cyan);text-decoration:none}
.site-header .mega-legal{margin-top:14px}
.site-header .mega-legal-links{display:flex;gap:14px;padding:0 8px}
.site-header .mega-legal-links a{font:12.5px var(--sans);color:var(--ink-3);text-decoration:none}
.site-header .mega-legal-links a:hover{color:var(--ink)}
.site-header .mega-sim-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px}
.site-header .mega-sim-grid a{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:8px;font:13.5px var(--sans);color:var(--ink-2);text-decoration:none}
.site-header .mega-sim-grid a:hover{background:var(--bg-2);color:var(--ink)}
.site-header .sim-ix{font:10px var(--mono);color:var(--cyan)}
/* Actions */
.site-header .header-actions{display:flex;gap:12px;align-items:center;flex-shrink:0}
.site-header .partner-link{font:500 13px var(--sans);color:var(--ink-2);text-decoration:none;white-space:nowrap}
.site-header .partner-link:hover{color:var(--cyan)}
.site-header .site-theme-toggle{display:grid;place-items:center;flex-shrink:0;width:36px;height:36px;padding:7px;border:1px solid var(--line-strong);border-radius:999px;background:transparent;color:var(--ink-2);cursor:pointer}
.site-header .site-theme-toggle svg{width:18px;height:18px}
.site-header .site-demo{display:inline-block;padding:10px 16px;border-radius:999px;background:var(--cyan);color:#09101c;font:600 13px var(--sans);text-decoration:none;white-space:nowrap;box-shadow:0 6px 20px color-mix(in srgb,var(--cyan) 35%,transparent);transition:transform .15s,box-shadow .15s}
.site-header .site-demo:hover{transform:translateY(-1px);box-shadow:0 10px 26px color-mix(in srgb,var(--cyan) 45%,transparent)}
.site-header a:focus-visible,.site-header button:focus-visible,.site-header summary:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
/* Hamburger */
.site-header .nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;margin-left:auto;padding:10px;border:1px solid var(--line-strong);border-radius:10px;background:transparent;cursor:pointer}
.site-header .nav-toggle span{display:block;height:1.5px;background:var(--ink);transition:transform .2s,opacity .2s}
.site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.site-header.nav-open .nav-toggle span:nth-child(2){opacity:0}
.site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
@media(max-width:1080px){
  .site-header>.shell{padding-inline:20px}
  .site-header .banner-ticker{display:none}
  .site-header .banner{justify-content:space-between}
  .site-header .nav-toggle{display:flex}
  .site-header .header-actions .partner-link,.site-header .header-actions .site-demo{display:none}
  .site-header .site-nav{display:none;position:fixed;left:0;right:0;top:var(--hdr-bottom,104px);bottom:0;flex-direction:column;align-items:stretch;gap:0;margin:0;padding:12px 20px 32px;overflow:auto;background:var(--bg);border-top:1px solid var(--line)}
  .site-header.nav-open .site-nav{display:flex}
  .site-header .site-nav>a,.site-header summary{justify-content:space-between;padding:16px 4px;border-radius:0;border-bottom:1px solid var(--line);font-size:17px}
  .site-header .site-nav>a:hover,.site-header summary:hover,.site-header details[open]>summary{background:transparent}
  .site-header .site-nav>a.nav-direct{display:flex;width:auto;margin:0;border-left:0;border-radius:0;justify-content:flex-start;color:var(--ink-2)}
  .site-header .site-nav-options.mega,.site-header .site-nav-options.mega.wide{position:static;transform:none;width:auto;grid-template-columns:1fr;max-height:none;padding:8px 0 16px;border:0;border-radius:0;box-shadow:none;background:transparent;animation:none}
  .site-header .mega-sim-grid{grid-template-columns:1fr 1fr}
  .site-header .nav-mobile-actions{display:flex;flex-direction:column;gap:12px;margin-top:20px}
  .site-header .nav-mobile-actions .site-demo{text-align:center;padding:14px}
  .site-header .nav-mobile-actions .partner-link{padding:12px 4px;font-size:15px}
  html.nav-locked{overflow:hidden}
}
@media(max-width:560px){.site-header .mega-sim-grid{grid-template-columns:1fr}.site-header .banner-clock{display:none}}
@media(prefers-reduced-motion:reduce){.site-header *{animation:none!important;transition:none!important}}
@media print{.site-header{display:none!important}}
@media(max-width:1080px){.site-header.nav-open{backdrop-filter:none;-webkit-backdrop-filter:none;background:var(--bg)}}
@media(max-width:560px){.site-header .brand-mark{width:32px;height:34px}.site-header .brand-word{font-size:18px}}

/* Simulations menu: poster preview of the hovered scenario */
.site-header .mega-sim-wrap{display:grid;grid-template-columns:260px 1fr;gap:16px;align-items:start}
.site-header .mega-sim-preview{margin:0;position:sticky;top:0;border:1px solid var(--line-strong);border-radius:10px;overflow:hidden;background:var(--bg-2)}
.site-header .mega-sim-preview img{display:block;width:100%;aspect-ratio:16/10;object-fit:cover;transition:opacity .2s}
.site-header .mega-sim-preview figcaption{padding:9px 12px;font:500 13px var(--sans);color:var(--ink)}
.site-header .mega-sim-grid{grid-template-columns:repeat(2,1fr)}
@media(max-width:1080px){.site-header .mega-sim-wrap{grid-template-columns:1fr}.site-header .mega-sim-preview{display:none}}