/* Шапка сайта для отдельных страниц со своим дизайном (например, nawida.html) */
.site-header,.site-header *{box-sizing:border-box;}
.site-header{--blue:#1D71B8;--blue-dark:#155a94;--ink:#0f172a;--muted:#5b6472;--soft:#f4f7fa;--border:#e4e9ee;font-family:'Manrope',system-ui,-apple-system,'Segoe UI',sans-serif;font-size:16px;line-height:1.5;color:var(--ink);}
.site-header a{color:var(--ink);}
.site-header .container{max-width:1180px;margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);}
.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:70px;}
.brand img{height:42px;width:auto;display:block;}
.nav{display:flex;align-items:center;gap:22px;}
.nav a{text-decoration:none;font-weight:600;font-size:14px;color:var(--ink);padding:6px 0;border-bottom:2px solid transparent;}
.nav a:hover{color:var(--blue);}
.nav a[aria-current="page"]{color:var(--blue);border-bottom-color:var(--blue);}
.nav .nav-cta{background:var(--blue);color:#fff;padding:9px 16px;border-radius:999px;border:0;}
.nav .nav-cta:hover{background:var(--blue-dark);color:#fff;}
.menu-btn{display:none;background:none;border:1px solid var(--border);border-radius:10px;padding:8px 10px;cursor:pointer;font:inherit;font-weight:700;}
.nav-dd{position:relative;}
.dd-btn{background:none;border:0;border-bottom:2px solid transparent;font:inherit;font-weight:600;font-size:14px;color:var(--ink);padding:6px 0;cursor:pointer;display:inline-flex;align-items:center;gap:6px;}
.dd-btn::after{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .15s ease;}
.dd-btn:hover,.nav-dd:hover .dd-btn,.nav-dd.open .dd-btn{color:var(--blue);}
.dd-btn[aria-current="page"]{color:var(--blue);border-bottom-color:var(--blue);}
.dd-menu{display:none;position:absolute;top:100%;right:-12px;min-width:210px;background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:0 12px 32px rgba(15,30,60,.12);padding:8px;z-index:20;}
.dd-menu::before{content:"";position:absolute;left:0;right:0;top:-10px;height:10px;}
.nav-dd:hover .dd-menu,.nav-dd:focus-within .dd-menu,.nav-dd.open .dd-menu{display:block;}
.nav .dd-menu a{display:block;padding:10px 12px;border-radius:8px;border-bottom:0;white-space:nowrap;}
.nav .dd-menu a:hover{background:var(--soft);}
.nav .dd-menu a[aria-current="page"]{border-bottom:0;background:var(--soft);}
@media (max-width:860px){
  .menu-btn{display:block;}
  .nav{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);padding:12px 24px 20px;flex-direction:column;align-items:flex-start;gap:12px;}
  .nav.open{display:flex;}
  .nav-dd{width:100%;}
  .dd-btn{pointer-events:none;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.04em;}
  .dd-btn::after{display:none;}
  .dd-menu{display:block;position:static;border:0;box-shadow:none;padding:4px 0 0 0;min-width:0;}
  .dd-menu::before{display:none;}
  .nav .dd-menu a{padding:8px 0;}
  .nav a,.dd-menu a,.dd-btn{min-height:40px;display:flex;align-items:center;}
}
.site-header .brand img{height:42px;width:auto;object-fit:contain;}
.site-header button{font-family:inherit;}