.chem-site-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px max(18px,calc((100vw - 1440px)/2));border-bottom:1px solid #52696b;background:#152227;color:#edf2e9;font:15px/1.4 system-ui,sans-serif;position:relative;z-index:30;box-sizing:border-box;flex-wrap:wrap}
.chem-site-header a{color:inherit;text-decoration:none}.chem-site-header .brand{display:flex;align-items:center;gap:9px;font-size:21px;font-weight:700}.chem-site-header .brand span{font-size:14px;font-weight:400;color:#bacbc7}.chem-site-header>nav{display:flex;gap:18px;align-items:center;flex-wrap:wrap}.chem-site-header a:focus-visible,.chem-breadcrumb a:focus-visible,.chem-nav a:focus-visible{outline:3px solid #a5d591;outline-offset:3px}.chem-site-header .site-index-links{background:#203238;color:#edf2e9}.chem-breadcrumb{display:flex;flex-wrap:wrap;gap:9px;align-items:center;margin:0;padding:12px 20px;font:13px/1.45 system-ui,sans-serif;color:#b2c5ce;background:#13202b;border-bottom:1px solid #31495f}.chem-breadcrumb a{color:#b8ddf9;text-decoration:none}.chem-nav{overflow:visible}.chem-nav a{min-height:34px;display:inline-flex;align-items:center}.chem-site-header svg.oddsprig-logo{width:30px;height:30px}.chem-site-header details.site-index>nav{display:none}.chem-site-header details.site-index[open]>nav{display:grid}
html[data-oddsprig-theme="light"] .q.tag{color:#174035!important;background:#d6e4d9!important;border:1px solid #7c948a!important}html[data-oddsprig-theme="dark"] .q.tag{color:#ddf4e5!important;background:#25463e!important;border:1px solid #6a9988!important}
@media(max-width:600px){.chem-site-header{padding:10px 14px;gap:10px}.chem-site-header>nav{gap:12px}.chem-site-header .brand{font-size:19px}.chem-site-header .brand span{font-size:12px}.chem-breadcrumb{padding:10px 14px}.chem-site-header>nav>a{font-size:13px}.chem-site-header .site-index-links{right:0;max-width:calc(100vw - 28px)}}
@media print{.chem-site-header,.chem-breadcrumb,.chem-nav{display:none!important}}