/* Shared research-atlas header. Loaded after each page's own stylesheet. */
.site-header{position:sticky;top:0;z-index:100;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:36px;min-height:84px;padding:16px clamp(24px,5vw,88px);background:rgba(7,8,10,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.12);font-family:"Segoe UI",Arial,sans-serif;line-height:1.3}
.site-header .brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:#f1f0e9;white-space:nowrap;font-size:initial;letter-spacing:normal}
.site-header .brand-glyph{display:grid;place-items:center;width:42px;height:42px;border:1px solid rgba(185,255,102,.5);border-radius:50%;color:#b9ff66;font-size:17px;font-weight:800;letter-spacing:-1px;text-transform:none}
.site-header .brand-name{display:flex;flex-direction:column;gap:4px;font-size:initial;letter-spacing:normal;text-transform:none}
.site-header .brand-name strong{font-size:14px;font-weight:650}.site-header .brand-name small{color:#9297a2;font-size:8px;text-transform:uppercase;letter-spacing:.15em}
.site-header .nav{display:flex;align-items:center;justify-content:center;gap:clamp(16px,2.4vw,36px)}
.site-header .nav a{color:#bbbfc6;font-size:11px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;text-decoration:none;position:relative}
.site-header a:hover,.site-header a:focus-visible{color:#b9ff66}.site-header a:focus-visible,.site-header button:focus-visible{outline:2px solid #b9ff66;outline-offset:5px}
.header-social{display:flex;align-items:center;gap:8px}.header-social a{display:grid;place-items:center;width:36px;height:36px;border:1px solid rgba(255,255,255,.12);border-radius:50%;color:#bbbfc6;transition:color .2s,border-color .2s,background .2s}.header-social a:hover{border-color:#b9ff66;background:rgba(185,255,102,.08)}.header-social svg{width:17px;height:17px;fill:currentColor}
.nav-published{position:relative}.published-control{display:flex;align-items:center;gap:4px}.site-header .published-toggle{display:grid;place-items:center;width:26px;height:32px;padding:0;margin:0;background:transparent;border:0;border-radius:4px;color:#bbbfc6;cursor:pointer}.published-toggle svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.5;transition:transform .2s}.nav-published.is-open .published-toggle svg{transform:rotate(180deg)}
.publication-dropdown{display:none;position:absolute;top:100%;left:-22px;width:340px;max-height:calc(100dvh - 100px);overflow-y:auto;list-style:none;padding:12px;margin:0;background:#101217;border:1px solid rgba(255,255,255,.16);border-radius:12px;box-shadow:0 18px 50px rgba(0,0,0,.4)}
.nav-published.is-open>.publication-dropdown{display:block}.site-header .publication-dropdown a{display:flex;align-items:baseline;gap:12px;padding:13px 12px;border-radius:6px;font-size:12px;letter-spacing:normal;text-transform:none;line-height:1.45}.site-header .publication-dropdown a::after{display:none}.publication-dropdown a:hover{background:rgba(185,255,102,.06)}.publication-dropdown span{font-size:10px;color:#9297a2}.publication-dropdown strong{font-weight:500}.publication-dropdown .view-all{margin-top:6px;border-top:1px solid rgba(255,255,255,.12)}.site-header .view-all a{color:#b9ff66;justify-content:space-between}
.site-header .mobile-menu-toggle{display:none;background:transparent;border:1px solid rgba(255,255,255,.16);border-radius:8px;padding:10px;width:38px;height:38px;cursor:pointer;color:#f1f0e9;gap:4px}.mobile-menu-toggle span{display:block;width:16px;height:1px;background:currentColor;transition:transform .2s,opacity .2s}.mobile-menu-toggle[aria-expanded=true] span:nth-child(1){transform:translateY(5px) rotate(45deg)}.mobile-menu-toggle[aria-expanded=true] span:nth-child(2){opacity:0}.mobile-menu-toggle[aria-expanded=true] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
html{scroll-padding-top:100px}
@media(min-width:981px){html:not(.header-enhanced) .nav-published:hover>.publication-dropdown,html:not(.header-enhanced) .nav-published:focus-within>.publication-dropdown{display:block}}
@media(max-width:980px){.site-header{grid-template-columns:1fr auto auto;gap:12px;min-height:72px;padding:12px 24px}.site-header .mobile-menu-toggle{display:grid;align-content:center;justify-content:center}.site-header .nav{display:none;position:absolute;top:100%;left:0;right:0;max-height:calc(100dvh - 80px);overflow-y:auto;flex-direction:column;align-items:stretch;gap:0;padding:14px 24px 22px;background:#101217;border-bottom:1px solid rgba(255,255,255,.16)}.site-header.menu-open .nav{display:flex}.site-header .nav>a,.published-control>a{display:block;padding:15px 0}.published-control{justify-content:space-between}.site-header .published-toggle{width:38px;height:40px;border:1px solid rgba(255,255,255,.12)}.publication-dropdown{position:static;width:auto;max-height:none;margin:0 0 12px;box-shadow:none;background:#08090b}.header-social{gap:6px}.header-social a{width:34px;height:34px}}
@media(max-width:480px){.site-header{gap:8px;padding:12px 16px}.site-header .brand-name{display:none}.site-header .brand-glyph{width:38px;height:38px}.header-social a{width:34px;height:34px}}
@media(prefers-reduced-motion:reduce){.site-header *{transition:none!important}}
@media(max-width:980px){html:not(.header-enhanced) .site-header{grid-template-columns:1fr auto}html:not(.header-enhanced) .site-header .nav{display:flex;position:static;grid-column:1/-1;grid-row:2;max-height:none;border:0;padding:0}html:not(.header-enhanced) .site-header .mobile-menu-toggle{display:none}html:not(.header-enhanced) .site-header .header-social{grid-column:2;grid-row:1}}