/* ESPFlight shared header v32 – EN + FA, desktop and touch screens.
   Loaded LAST on all public pages to normalize previous header variants. */
:root{--nav-control-h:44px;--nav-radius:11px}
.siteHeader{
  --esp-nav-color:#213547;
  --esp-nav-control-bg:#ffffff;
}
html[data-theme="dark"] .siteHeader{
  --esp-nav-color:#f0f3f6;
  --esp-nav-control-bg:#24262c;
}
.siteHeader .logoWord{color:var(--esp-nav-color)}
.siteHeader .desktopNav a,html[lang="fa"] .siteHeader .desktopNav a{color:var(--esp-nav-color)}
.siteHeader .desktopNav a.active,html[lang="fa"] .siteHeader .desktopNav a.active{color:var(--accent)}
.siteHeader .languagePicker>summary{
  background:var(--esp-nav-control-bg);color:var(--esp-nav-color);
}
.siteHeader .languageMenu{background:var(--esp-nav-control-bg)}
.siteHeader .languageMenu a{color:var(--esp-nav-color)}
.siteHeader .themeToggle,.siteHeader .githubIconLink{color:var(--esp-nav-color)}
.siteHeader .headerInner{
  display:flex;align-items:center;justify-content:space-between;
  gap:clamp(12px,1.5vw,26px);min-width:0;
}
.siteHeader .logo{flex:0 0 auto;min-width:0}
.siteHeader .desktopNav,
html[lang="fa"] .siteHeader .desktopNav{
  flex:0 1 auto;align-items:center;align-self:stretch;
  gap:clamp(2px,.45vw,9px);
  margin-inline-start:auto;margin-inline-end:0;
  margin-left:auto;margin-right:0;
}
html[lang="fa"] .siteHeader .desktopNav{
  margin-left:0;margin-right:auto;
}
.siteHeader .desktopNav a,
html[lang="fa"] .siteHeader .desktopNav a{
  position:relative;box-sizing:border-box;
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;min-height:44px;
  padding-inline:clamp(9px,.85vw,15px);padding-block:0;
  border-radius:9px;white-space:nowrap;
  font-size:13.5px;line-height:1.5;font-weight:650;
  transition:color .16s ease,background .16s ease;
}
.siteHeader .desktopNav a:hover{background:var(--controlHover,rgba(66,184,131,.08))}
.siteHeader .desktopNav a.active:after{
  left:12px;right:12px;bottom:0;height:2px;border-radius:2px
}
.siteHeader .headerActions,
html[lang="fa"] .siteHeader .headerActions{
  display:flex;align-items:center;justify-content:flex-end;
  flex:0 0 auto;gap:8px;min-width:0;
  margin:0;
}
.siteHeader .headerActions>.button.buttonSmall,
html[lang="fa"] .siteHeader .headerActions>.button.buttonSmall{
  box-sizing:border-box;display:inline-flex;align-items:center;justify-content:center;
  height:var(--nav-control-h);min-height:var(--nav-control-h);
  border-radius:var(--nav-radius);padding-inline:16px;
  font-size:13px;line-height:1.3;white-space:nowrap;transform:none;
}
.siteHeader .languagePicker>summary{
  box-sizing:border-box;height:var(--nav-control-h);min-height:var(--nav-control-h);
  min-width:86px;padding-inline:11px;gap:7px;border-radius:var(--nav-radius);
  font-size:12px;font-weight:750;line-height:1;white-space:nowrap;
}
.siteHeader .languagePicker>summary .languageGlobe{
  width:19px;height:19px;flex:0 0 19px;
}
.siteHeader .languagePicker>summary .languageChevron{
  width:12px;height:12px;flex:0 0 12px;opacity:.7;
  transition:transform .15s ease;
}
.siteHeader .languagePicker[open]>summary .languageChevron{transform:rotate(180deg)}
.siteHeader .languageMenu{top:calc(var(--nav-control-h) + 8px);min-width:162px;border-radius:12px;padding:6px}
.siteHeader .languageMenu a{min-height:44px;font-size:13px}
.siteHeader .headerDivider{display:none}
.siteHeader .themeToggle,
.siteHeader .githubIconLink,
.siteHeader .menuButton{
  box-sizing:border-box;flex:0 0 44px;
  width:44px;min-width:44px;height:44px;min-height:44px;
  border-radius:var(--nav-radius);margin:0;
}
.siteHeader .menuButton{padding:10px;border:1px solid var(--line)}
.siteHeader .menuButton[aria-expanded="true"]{color:var(--accent);background:var(--accentSoft);border-color:rgba(66,184,131,.28)}
.siteHeader .themeToggle:focus-visible,
.siteHeader .githubIconLink:focus-visible,
.siteHeader .menuButton:focus-visible,
.siteHeader .languagePicker>summary:focus-visible,
.siteHeader .mobileNav a:focus-visible{
  outline:2px solid var(--accent);outline-offset:3px;
}
.siteHeader .mobileNav[hidden],
.mobileMenuBackdrop[hidden]{display:none!important}
.mobileMenuBackdrop{display:none}
@media(max-width:1220px){
  .siteHeader .desktopNav,
  html[lang="fa"] .siteHeader .desktopNav{display:none}
  .siteHeader .headerActions .button{display:none!important}
  .siteHeader .headerActions .languagePicker{display:none!important}
  .siteHeader .menuButton{display:inline-flex;align-items:center;justify-content:center;flex:0 0 44px}
  .siteHeader .headerActions{margin-inline-start:auto}
  .mobileMenuBackdrop{
    display:block;position:fixed;top:var(--headerHeight,74px);
    left:0;right:0;bottom:0;z-index:99;
    background:rgba(2,8,18,.58);
    -webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);
  }
  .siteHeader .mobileNav{
    display:block;position:absolute;top:var(--headerHeight,74px);
    inset-inline:0;left:0;right:0;z-index:2;
    max-height:calc(100vh - var(--headerHeight,74px));
    max-height:calc(100dvh - var(--headerHeight,74px));
    overflow-y:auto;overscroll-behavior:contain;
    -webkit-overflow-scrolling:touch;
    background:var(--panel)!important;
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 44px rgba(0,0,0,.22);
    animation:espMenuSlide .16s ease-out both;
  }
  @keyframes espMenuSlide{from{transform:translateY(-7px)}to{transform:translateY(0)}}
  .siteHeader .mobileNavInner{
    box-sizing:border-box;display:flex;flex-direction:column;
    padding-block:20px max(24px,env(safe-area-inset-bottom));
    gap:0;max-width:640px;
  }
  .siteHeader .mobileNavHeading{
    display:flex;justify-content:space-between;align-items:center;
    padding-inline:4px;margin-bottom:12px;
    color:var(--muted);font-size:12px;font-weight:750;
    letter-spacing:.07em;text-transform:uppercase;
  }
  html[lang="fa"] .siteHeader .mobileNavHeading{letter-spacing:0;font-size:13px}
  .siteHeader .mobileNavHeading small{font-size:11px;color:var(--dim);text-transform:none;letter-spacing:0;font-weight:550}
  .siteHeader .mobileNavLinks{display:grid;grid-template-columns:minmax(0,1fr);gap:5px}
  .siteHeader .mobileNavLinks>a{
    box-sizing:border-box;display:flex;justify-content:space-between;align-items:center;
    width:100%;min-height:49px;padding:11px 16px;border:1px solid transparent;
    border-radius:11px;color:var(--text);font-size:15px;font-weight:650;
    line-height:1.5;text-decoration:none;transition:background .14s,border-color .14s;
  }
  html[lang="fa"] .siteHeader .mobileNavLinks>a{font-size:15px;font-weight:600}
  .siteHeader .mobileNavLinks>a:after{
    content:"";display:block;flex:0 0 8px;width:8px;height:8px;
    border-top:1.7px solid currentColor;border-right:1.7px solid currentColor;
    transform:rotate(45deg);opacity:.55;
  }
  html[lang="fa"] .siteHeader .mobileNavLinks>a:after{transform:rotate(225deg)}
  .siteHeader .mobileNavLinks>a:hover{background:var(--controlHover,rgba(66,184,131,.09))}
  .siteHeader .mobileNavLinks>a[aria-current="page"]{
    background:var(--accentSoft);border-color:rgba(66,184,131,.2);color:var(--accent);
  }
  .siteHeader .mobileNavTools{display:grid;gap:14px;margin-top:16px;padding-top:18px;border-top:1px solid var(--line)}
  .siteHeader .mobileLanguagePicker{
    box-sizing:border-box;display:grid;grid-template-columns:auto 1fr 1fr;
    align-items:center;column-gap:8px;row-gap:8px;
    padding:0;border:0;margin:0;
  }
  .siteHeader .mobileLanguagePicker>span{
    display:flex;align-items:center;gap:7px;
    font-size:13px;color:var(--muted);font-weight:650;
  }
  .siteHeader .mobileLanguagePicker>span svg{width:18px;height:18px;flex:0 0 18px}
  .siteHeader .mobileLanguagePicker>a{
    box-sizing:border-box;min-height:44px;border-radius:10px;
    font-size:13px;font-weight:650;
  }
  .siteHeader .mobileNavCta.button{
    box-sizing:border-box;display:flex;align-items:center;justify-content:center;
    width:100%;min-height:48px;margin:0;border-radius:11px;
    font-size:14px;
  }
  body.mobile-menu-open{overflow:hidden}
}
@media(max-width:700px){
  .siteHeader .headerInner{gap:8px}
  .siteHeader .githubIconLink{display:none}
  .siteHeader .headerActions{gap:6px}
  .siteHeader .themeToggle,.siteHeader .menuButton{width:44px;min-width:44px;height:44px}
}
@media(max-width:380px){
  .siteHeader .headerInner{gap:5px}
  .siteHeader .logoWord{font-size:16px}
  .siteHeader .mobileNavInner{padding-block:15px max(18px,env(safe-area-inset-bottom))}
  .siteHeader .mobileNavLinks>a{min-height:46px;padding-block:9px}
}
@media(min-width:1221px){
  .siteHeader .menuButton{display:none}
  .siteHeader .mobileNav,.mobileMenuBackdrop{display:none!important}
}
@media(prefers-reduced-motion:reduce){
 .siteHeader .mobileNav{animation:none}
}