header[data-site-header]{height:76px;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:0 clamp(18px,4vw,64px);border-bottom:1px solid #ffffff12;background:#070a12cc;color:#f6f7fb;backdrop-filter:blur(18px);position:sticky;top:0;z-index:40;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
header[data-site-header] a{color:inherit;text-decoration:none}
header[data-site-header] .brand{display:flex;gap:10px;align-items:center;flex:0 0 auto;font-size:1rem;font-weight:850;letter-spacing:-.03em}
header[data-site-header] .brand-mark{display:block;width:34px;height:34px;filter:drop-shadow(0 8px 16px #7587ff35)}
header[data-site-header] .desktop-nav{display:flex;align-items:center;gap:22px;margin-left:auto;color:#a3abc0;font-size:.94rem}
header[data-site-header] .desktop-nav a{transition:color .14s ease,transform .14s ease}
header[data-site-header] .desktop-nav a:hover,header[data-site-header] .desktop-nav a[aria-current="page"]{color:#f6f7fb}
header[data-site-header] .desktop-nav a:hover{transform:translateY(-1px)}
header[data-site-header] .topbar-actions{display:flex;align-items:center;margin-left:12px}
header[data-site-header] .theme-toggle{min-width:42px;height:38px;display:inline-flex;align-items:center;justify-content:center;gap:7px;margin:0;padding:0 11px;border:1px solid #293047;border-radius:12px;background:#171d2e;color:#f6f7fb;cursor:pointer;font:750 .76rem/1 system-ui,sans-serif;transition:transform .14s ease,border-color .14s ease,background .14s ease}
header[data-site-header] .theme-toggle:hover{transform:translateY(-1px);border-color:#6f63aa;background:#20263a}
header[data-site-header] .theme-toggle:focus-visible,header[data-site-header] .mobile-nav-toggle:focus-visible{outline:3px solid #67e8f988;outline-offset:2px}
header[data-site-header] .theme-toggle-icon{font-size:1rem;line-height:1}
header[data-site-header] .theme-toggle-label{white-space:nowrap}
header[data-site-header] .mobile-nav-toggle,header[data-site-header] .mobile-nav{display:none}

html[data-theme="light"] header[data-site-header]{border-bottom-color:#dce3ed;background:#f7f9fce8;color:#171b26;box-shadow:0 6px 24px #2836500c}
html[data-theme="light"] header[data-site-header] .brand-mark{filter:drop-shadow(0 8px 16px #7456e833)}
html[data-theme="light"] header[data-site-header] .desktop-nav{color:#637087}
html[data-theme="light"] header[data-site-header] .desktop-nav a:hover,html[data-theme="light"] header[data-site-header] .desktop-nav a[aria-current="page"]{color:#171b26}
html[data-theme="light"] header[data-site-header] .theme-toggle{border-color:#d5ddea;background:#eef2f8;color:#171b26}
html[data-theme="light"] header[data-site-header] .theme-toggle:hover{border-color:#aeb9c9;background:#e5eaf2}

@media(max-width:850px){
  body.mobile-nav-open{overflow:hidden}
  header[data-site-header]{height:68px;padding:0 16px;gap:10px}
  header[data-site-header] .brand{min-width:0}
  header[data-site-header] .brand-mark{width:32px;height:32px}
  header[data-site-header] .brand>span:last-child{font-size:.98rem}
  header[data-site-header] .desktop-nav{display:none}
  header[data-site-header] .topbar-actions{margin-left:auto;gap:8px}
  header[data-site-header] .topbar-actions>.theme-toggle{width:42px;min-width:42px;height:42px;padding:0;margin:0}
  header[data-site-header] .topbar-actions>.theme-toggle .theme-toggle-label{display:none}
  header[data-site-header] .mobile-nav-toggle{width:44px;height:44px;display:grid;place-content:center;gap:5px;padding:0;border:1px solid #293047;border-radius:13px;background:#171d2e;color:#f6f7fb;cursor:pointer}
  header[data-site-header] .mobile-nav-toggle span{width:19px;height:2px;display:block;border-radius:999px;background:currentColor;transition:transform .18s ease,opacity .18s ease}
  header[data-site-header] .mobile-nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  header[data-site-header] .mobile-nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
  header[data-site-header] .mobile-nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  header[data-site-header] .mobile-nav{position:absolute;inset:calc(100% + 1px) 10px auto;display:block;padding:12px;border:1px solid #293047;border-radius:0 0 22px 22px;background:#070a12f0;box-shadow:0 24px 60px #0008;backdrop-filter:blur(22px)}
  header[data-site-header] .mobile-nav[hidden]{display:none}
  header[data-site-header] .mobile-nav nav{display:grid;gap:5px;margin:0;font-size:inherit}
  header[data-site-header] .mobile-nav nav a{display:flex;flex-direction:column;gap:3px;min-height:58px;justify-content:center;padding:10px 13px;border-radius:13px;color:#f6f7fb}
  header[data-site-header] .mobile-nav nav a:hover,header[data-site-header] .mobile-nav nav a:focus-visible,header[data-site-header] .mobile-nav nav a[aria-current="page"]{background:#171d2e;outline:none}
  header[data-site-header] .mobile-nav nav a span{font-weight:800}
  header[data-site-header] .mobile-nav nav a small{color:#a3abc0;font-size:.72rem}
  html[data-theme="light"] header[data-site-header] .mobile-nav-toggle{border-color:#d5ddea;background:#eef2f8;color:#171b26}
  html[data-theme="light"] header[data-site-header] .mobile-nav{border-color:#dce3ed;background:#f7f9fcf2;box-shadow:0 24px 60px #28365024}
  html[data-theme="light"] header[data-site-header] .mobile-nav nav a{color:#171b26}
  html[data-theme="light"] header[data-site-header] .mobile-nav nav a:hover,html[data-theme="light"] header[data-site-header] .mobile-nav nav a:focus-visible,html[data-theme="light"] header[data-site-header] .mobile-nav nav a[aria-current="page"]{background:#eef2f8}
  html[data-theme="light"] header[data-site-header] .mobile-nav nav a small{color:#637087}
}

@media(max-width:390px){
  header[data-site-header]{padding-inline:12px}
  header[data-site-header] .brand>span:last-child{font-size:.9rem}
  header[data-site-header] .topbar-actions{gap:6px}
}

@media(max-width:340px){header[data-site-header] .brand>span:last-child{display:none}}