/* Общие стили шапки сайта. Раньше этот блок был скопирован в 12 HTML-файлов. */
.site-nav{position:sticky;top:0;z-index:50;background:transparent;border-bottom:1px solid transparent;transition:border-color .3s,background .3s,backdrop-filter .3s}
.site-nav.scrolled{background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:saturate(1.1) blur(6px);border-bottom-color:var(--hair)}
.site-nav-in{max-width:1160px;margin:0 auto;padding:0 clamp(20px,5vw,64px);display:flex;align-items:center;justify-content:space-between;height:72px}
.site-brand{display:inline-flex;align-items:baseline;gap:.42em;font-family:var(--f-display);font-style:italic;font-weight:500;font-size:1.62rem;letter-spacing:0;color:var(--ink);text-decoration:none}
.site-mark{width:30px;height:36px;color:var(--navy);flex:none;display:inline-block;transform:translateY(4px)}
.site-bn{display:inline-block;transform:translateY(3px)}
@media(prefers-color-scheme:dark){.site-mark{color:#E7E3DA}}
.site-nav-links{display:flex;align-items:center;gap:2.2rem}
.site-n{font-size:.92rem;color:var(--muted);text-decoration:none;transition:color .2s}
.site-n:hover{color:var(--ink)}
.site-cta{display:inline-flex;align-items:center;gap:.6em;font-family:var(--f-body);font-weight:500;font-size:.9rem;padding:.6em 1.15em;border-radius:8px;border:1px solid transparent;background:var(--navy);color:#F4F1EA;text-decoration:none;cursor:pointer;transition:transform .25s cubic-bezier(.2,.7,.2,1),box-shadow .25s cubic-bezier(.2,.7,.2,1)}
.site-cta:hover{transform:translateY(-2px);box-shadow:0 10px 24px -12px rgba(22,35,59,.5)}
@media(prefers-color-scheme:dark){.site-cta{background:#EBE7DF;color:#15171C}}
.site-burger{display:none;width:44px;height:44px;flex-direction:column;justify-content:center;align-items:center;gap:5px;border:0;background:transparent;cursor:pointer;padding:0}
.site-burger span{display:block;width:22px;height:2px;background:var(--ink);border-radius:2px;transition:transform .3s cubic-bezier(.2,.7,.2,1),opacity .2s}
.site-nav.nav-open .site-burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-nav.nav-open .site-burger span:nth-child(2){opacity:0}
.site-nav.nav-open .site-burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(max-width:820px){
.site-burger{display:flex}
.site-nav-links{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--paper);border-bottom:1px solid var(--hair);padding:6px clamp(20px,5vw,64px) 18px;transform:translateY(-10px);opacity:0;pointer-events:none;transition:opacity .25s cubic-bezier(.2,.7,.2,1),transform .25s cubic-bezier(.2,.7,.2,1)}
.site-nav.nav-open .site-nav-links{transform:none;opacity:1;pointer-events:auto}
.site-n{font-size:1.05rem;padding:14px 0;border-bottom:1px solid var(--hair)}
.site-cta{margin-top:14px;justify-content:center;padding:.85em 1.15em}
}