.vk-header{position:sticky;top:0;z-index:40;background:radial-gradient(circle at 0 0,rgba(249,115,22,0.18) 0,transparent 55%),rgba(0,0,0,0.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--color-border-strong)}.vk-header-inner{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);padding-top:var(--space-3);padding-bottom:var(--space-3)}.vk-brand{display:inline-flex;align-items:center;gap:var(--space-3);color:var(--color-text);text-decoration:none}.vk-brand:hover,.vk-brand:focus-visible{text-decoration:none;color:var(--color-text)}.vk-brand-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:radial-gradient(circle at 0 0,rgba(249,115,22,0.55) 0,transparent 55%),#020617;border:1px solid rgba(249,115,22,0.7);font-family:var(--font-display);font-size:0.9rem;letter-spacing:0.16em;text-transform:uppercase;box-shadow:0 10px 25px rgba(0,0,0,0.85)}.vk-brand-text{display:flex;flex-direction:column;gap:2px}.vk-brand-title{font-family:var(--font-display);font-size:1.05rem;letter-spacing:0.2em;text-transform:uppercase}.vk-brand-subtitle{font-size:0.7rem;text-transform:uppercase;letter-spacing:0.18em;color:var(--color-text-muted)}.vk-nav{display:flex;align-items:center}.vk-nav-list{display:flex;align-items:center;gap:var(--space-4)}.vk-nav-link{position:relative;font-size:0.8rem;letter-spacing:0.14em;text-transform:uppercase;color:var(--color-text-muted);padding:10px 0;text-decoration:none}.vk-nav-link:hover,.vk-nav-link:focus-visible{text-decoration:none}.vk-nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:999px;background:linear-gradient(90deg,rgba(249,115,22,0),var(--color-primary),rgba(249,115,22,0));transform-origin:center;transform:scaleX(0);opacity:0;transition:transform var(--transition-base),opacity var(--transition-base)}.vk-nav-link:hover,.vk-nav-link:focus-visible{color:var(--color-text)}.vk-nav-link:hover::after,.vk-nav-link:focus-visible::after{opacity:1;transform:scaleX(1)}.vk-nav-cta{padding:8px 18px;border-radius:999px;border:1px solid var(--color-primary);background:linear-gradient(135deg,#f97316,#b45309);color:#111827 !important;box-shadow:0 0 0 1px rgba(0,0,0,0.9),0 18px 40px rgba(249,115,22,0.7)}.vk-nav-cta:hover,.vk-nav-cta:focus-visible{background:linear-gradient(135deg,#fdba74,#f97316)}.vk-nav-toggle{display:none;flex-direction:column;align-items:center;justify-content:center;gap:5px;width:44px;height:44px;padding:0;margin:0;border-radius:999px;border:1px solid rgba(249,115,22,0.75);background:radial-gradient(circle at 0 0,rgba(249,115,22,0.45) 0,transparent 55%),#111827;box-shadow:0 12px 28px rgba(0,0,0,0.9);color:#f9fafb}.vk-nav-toggle-bar{display:block;width:20px;height:2px;flex-shrink:0;border-radius:999px;background:#f9fafb;box-shadow:0 0 0 1px rgba(249,115,22,0.35);transition:transform var(--transition-base),opacity var(--transition-base)}.vk-nav-toggle[aria-expanded="true"] .vk-nav-toggle-bar:nth-child(1){transform:translateY(7px) rotate(45deg)}.vk-nav-toggle[aria-expanded="true"] .vk-nav-toggle-bar:nth-child(2){opacity:0}.vk-nav-toggle[aria-expanded="true"] .vk-nav-toggle-bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.vk-nav-toggle:focus-visible{outline:none;box-shadow:0 0 0 1px rgba(0,0,0,0.9),0 0 0 3px rgba(249,115,22,0.7)}@media (max-width:959.98px){.vk-nav-toggle{display:inline-flex}.vk-nav{position:fixed;inset:64px 0 auto 0;z-index:30;pointer-events:none}.vk-nav-list{position:relative;margin:var(--space-3) var(--space-4);padding:var(--space-4);flex-direction:column;align-items:flex-start;gap:var(--space-3);border-radius:var(--radius-lg);border:1px solid var(--color-border-strong);background:radial-gradient(circle at 0 0,rgba(249,115,22,0.2) 0,transparent 65%),#020617;box-shadow:var(--shadow-hard);max-height:0;overflow:hidden;opacity:0;transform:translateY(-6px);transition:max-height var(--transition-slow),opacity var(--transition-base),transform var(--transition-base)}.vk-nav-link{width:100%}.vk-nav-cta-wrap{margin-top:var(--space-2);width:100%}.vk-nav-cta{display:flex;justify-content:center;width:100%}.vk-nav-open .vk-nav{pointer-events:auto}.vk-nav-open .vk-nav-list{max-height:320px;opacity:1;transform:translateY(0)}}@media (max-width:479.98px){.vk-brand-subtitle{display:none}}