#site-header{--header-bg:#fff;height:auto;max-width:none;margin:0;padding:0;display:block;border-bottom:1px solid var(--line);background:var(--header-bg);color:var(--ink)}
html[data-theme=night] #site-header,html[data-theme=dark] #site-header{--header-bg:#171e25}
#site-header .navlinks details{border:0;margin:0;padding:0}#site-header .theme-toggle,#site-header .mobile-toggle,#site-header .language,#site-header .dropdown{background:var(--header-bg)}
#site-header *{box-sizing:border-box}#site-header .nav{max-width:1380px;margin:auto;padding:22px 32px;display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap}
#site-header .brand{display:flex;align-items:center;gap:12px;flex-shrink:0;white-space:nowrap;text-decoration:none}#site-header .brand img{width:46px;height:46px;object-fit:contain}#site-header .wordmark{font-size:34px;line-height:1.25;font-weight:600;letter-spacing:1.2px;padding-bottom:6px;position:relative;color:#2f9fc2}#site-header .wordmark::after{content:'';position:absolute;left:0;right:0;bottom:0;height:3px;background:linear-gradient(90deg,#2f9fc2 65%,#a6db19);transition:transform .25s}#site-header .brand:hover .wordmark::after{transform:scaleX(.72)}
#site-header .nav-tools{display:flex;gap:10px;align-items:center;order:3}#site-header .theme-toggle,#site-header .mobile-toggle{font:inherit;font-size:14px;cursor:pointer;min-height:42px;padding:9px 13px;background:var(--surface,var(--paper,#fff));border:1px solid var(--line);color:var(--ink)}#site-header .theme-toggle{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:24px;min-width:0}#site-header .theme-toggle>span:first-child{font-size:20px;line-height:1}#site-header .mobile-toggle{display:none}
#site-header .navlinks{display:flex;align-items:center;justify-content:flex-end;gap:20px;margin-left:auto;font-size:14px;flex-wrap:nowrap}#site-header .navlinks>a{display:block;color:var(--ink);white-space:nowrap;text-decoration:none}#site-header .navlinks>a[aria-current]{color:#2f9fc2}#site-header .navlinks details{position:relative}#site-header summary{list-style:none;display:flex;gap:6px;align-items:center;cursor:pointer;white-space:nowrap;padding:0;border:0;font-size:14px;color:var(--ink)}#site-header summary::-webkit-details-marker{display:none}#site-header summary::after{content:'⌄';color:var(--muted)}#site-header .dropdown{position:absolute;top:calc(100% + 12px);left:0;min-width:210px;z-index:100;background:var(--surface,var(--paper,#fff));border:1px solid var(--line);padding:10px;box-shadow:0 12px 30px #0001}#site-header .dropdown a{display:block;padding:12px;white-space:nowrap;font-size:14px}#site-header .dropdown a:hover{background:var(--pale,var(--surface,#edf7fa))}#site-header .language{display:block;width:auto;margin:0;padding:10px;font:inherit;font-size:14px;border:1px solid var(--line);background:var(--surface,var(--paper,#fff));color:var(--ink)}
@media(max-width:1250px){#site-header .nav{gap:16px;padding:20px 24px}#site-header .navlinks{width:100%;gap:18px;order:4;justify-content:flex-end}#site-header .nav-tools{order:0;margin-left:auto}}
@media(max-width:760px){#site-header .nav{padding:18px 22px;gap:12px}#site-header .brand img{width:38px;height:38px}#site-header .wordmark{font-size:28px}#site-header .mobile-toggle{display:block}#site-header .navlinks{display:none;width:100%;flex-direction:column;align-items:stretch;gap:4px;padding:15px 0;order:4}#site-header .navlinks.is-open{display:flex}#site-header .navlinks summary,#site-header .navlinks>a{padding:12px;font-size:14px}#site-header .dropdown{position:static;box-shadow:none;border:0;padding:0 15px}#site-header .language{width:100%}#site-header .theme-toggle{padding:9px 10px}#site-header .theme-toggle #theme-label{display:none}#site-header .nav-tools{gap:8px}#site-header .navlinks details{border:0;margin:0}#site-header .navlinks details[open]{padding:0}}
#site-header .nav-tools .theme-toggle,#site-header .nav-tools .mobile-toggle,#site-header select.language,#site-header .navlinks .dropdown{background:var(--header-bg)}
#site-header .wordmark::after{display:none}

/* Keyboard access on production routes. */
.skip-link{position:fixed;top:8px;left:16px;padding:12px 20px;transform:translateY(-150%);z-index:100;background:var(--green);color:#263314;border-radius:12px}.skip-link:focus{transform:none}