.site-header{backdrop-filter:blur(16px);background-color:rgba(245,246,249,0.94);border-bottom:1px solid rgba(209,213,219,0.7)}.header-inner{display:flex;align-items:center;gap:var(--space-7);height:var(--nav-height)}.header-brand{display:flex;align-items:center}.header-logo{display:inline-flex;align-items:center;gap:var(--space-4);font-family:var(--font-mono);font-weight:700;font-size:var(--font-size-sm);letter-spacing:0.16em;text-transform:uppercase;color:var(--gray-900)}.header-logo-mark{width:26px;height:26px;border-radius:10px;background:conic-gradient(from 220deg at 30% 0,var(--color-primary),var(--color-accent-violet),var(--color-accent-green),var(--color-primary))}.header-logo-text{white-space:nowrap}.header-nav{margin-left:auto}.header-nav-list{display:flex;align-items:center;gap:var(--space-6);font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:0.12em}.header-nav-item{position:relative}.header-nav-link,.header-nav-link-button{position:relative;display:inline-flex;align-items:center;gap:var(--space-2);padding:0.15rem 0;border:0;background:transparent;color:var(--gray-700);cursor:pointer}.header-nav-link::after,.header-nav-link-button::after{content:"";position:absolute;left:0;bottom:-3px;width:0;height:2px;border-radius:999px;background:linear-gradient(90deg,var(--color-primary),var(--color-accent-green));transition:width var(--transition-fast)}.header-nav-link:hover,.header-nav-link-button:hover{color:var(--gray-900)}.header-nav-link:hover::after,.header-nav-link-button:hover::after{width:100%}.header-nav-link.is-active::after{width:100%}.header-nav-caret{border:4px solid transparent;border-top-color:var(--gray-500);margin-left:1px;transform-origin:center;transition:transform var(--transition-fast)}.header-submenu{position:absolute;top:calc(100% + 0.5rem);left:0;min-width:170px;padding:var(--space-4);border-radius:var(--radius-lg);background-color:var(--color-surface-elevated);box-shadow:var(--shadow-md);border:1px solid rgba(148,163,184,0.55);display:none;z-index:var(--z-nav)}.header-submenu-link{display:block;padding:0.4rem 0.7rem;border-radius:var(--radius-md);font-size:var(--font-size-xs);letter-spacing:0.08em;text-transform:uppercase;color:var(--gray-700)}.header-submenu-link:hover{background-color:var(--gray-100);color:var(--gray-900)}.header-nav-more.is-open>.header-submenu{display:block}.header-nav-more.is-open .header-nav-caret{transform:rotate(180deg)}.header-actions{display:flex;align-items:center;gap:var(--space-5);margin-left:var(--space-7)}.header-search{position:relative;display:flex;align-items:center;min-width:0}.header-search-icon{position:absolute;left:0.7rem;font-size:0.8rem;color:var(--color-text-muted)}.header-search-input{width:220px;padding-left:2rem;padding-right:0.75rem;border-radius:999px;border:1px solid var(--color-border);background-color:var(--color-bg-alt);font-size:var(--font-size-xs)}.header-search-input::placeholder{color:var(--color-text-muted)}.header-cta{white-space:nowrap}.header-toggle{display:none;flex-direction:column;justify-content:center;align-items:center;gap:4px;width:40px;height:40px;border-radius:999px;border:1px solid rgba(148,163,184,0.7);background-color:rgba(248,250,252,0.98);color:var(--gray-800);cursor:pointer;padding:0}.header-toggle-bar{width:18px;height:2px;border-radius:999px;background:linear-gradient(90deg,var(--color-primary),var(--color-accent-violet))}.header-toggle.is-active .header-toggle-bar:nth-child(1){transform:translateY(4px) rotate(45deg)}.header-toggle.is-active .header-toggle-bar:nth-child(2){opacity:0}.header-toggle.is-active .header-toggle-bar:nth-child(3){transform:translateY(-4px) rotate(-45deg)}@media (max-width:991.98px){.header-nav{position:fixed;inset:var(--nav-height) 0 auto 0;padding:var(--space-6) var(--space-7) var(--space-8);background:radial-gradient(circle at top left,rgba(108,56,255,0.06),transparent 60%),radial-gradient(circle at top right,rgba(0,227,125,0.06),transparent 60%),var(--color-bg);border-bottom:1px solid rgba(209,213,219,0.9);transform:translateY(-120%);transition:transform var(--transition-base);pointer-events:none;opacity:0}.header-nav-list{flex-direction:column;align-items:flex-start;gap:var(--space-4)}.header-actions{margin-left:0}.header-nav-is-open .header-nav{transform:translateY(0);pointer-events:auto;opacity:1}.header-toggle{display:flex;margin-left:auto}.header-search-input{width:100%;max-width:100%}.header-actions{position:fixed;inset:auto var(--space-7) var(--space-6) var(--space-7);justify-content:space-between;background-color:rgba(250,250,251,0.98);padding:var(--space-4) var(--space-5);border-radius:999px;box-shadow:var(--shadow-md);z-index:var(--z-nav)}}@media (max-width:575.98px){.header-inner{gap:var(--space-4)}.header-logo-text{font-size:var(--font-size-xs)}.header-actions{flex-direction:row;gap:var(--space-3)}.header-cta{padding-inline:var(--space-6)}}.header-nav-is-open body{overflow:hidden}