.header{position:fixed;top:0;left:0;right:0;z-index:100;background:var(--surface-bg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--accent-line-mid)}.header_inner{max-width:1600px;margin:0 auto;padding:1.4rem var(--main-padding);display:flex;align-items:center;justify-content:space-between;gap:2rem}.header_logo{display:inline-flex;align-items:center;gap:.55rem;font-size:1.75rem;font-weight:800;color:var(--text);letter-spacing:-.02em;text-transform:lowercase}.header_logo>i{display:inline-block;width:1.3rem;height:1.3rem;background:var(--accent);transform:rotate(45deg);border-radius:3px;box-shadow:0 0 12px var(--accent)}.header_logo>span{color:var(--accent)}.header_logo:hover{color:var(--text)}.header_nav{display:flex;align-items:center;gap:2.4rem}.header_nav>div>ul{display:flex;align-items:center;gap:4.4rem}.header_nav>div>ul>li>a{font-size:1.05rem;font-weight:500;color:var(--text-muted);position:relative;padding:.3rem 0}.header_nav>div>ul>li>a::after{content:"";position:absolute;left:0;bottom:-.2rem;width:0;height:1px;background:var(--accent);transition:width 0.25s ease;box-shadow:0 0 8px var(--accent)}.header_nav>div>ul>li>a:hover{color:var(--accent)}.header_nav>div>ul>li>a:hover::after{width:100%}.header_cta_big{display:inline-flex;align-items:center;justify-content:center;padding:.95rem 1.9rem;font-size:1.02rem;font-weight:700;color:var(--bg-dark);background:var(--accent);border-radius:var(--radius-sm);letter-spacing:.04em;text-transform:uppercase;transition:transform 0.25s ease,box-shadow 0.25s ease,background 0.25s ease}.header_cta_big:hover{background:var(--accent-bright);color:var(--bg-dark);transform:translateY(-2px);box-shadow:var(--shadow-accent)}.header_burger{display:none;flex-direction:column;justify-content:center;gap:.5rem;width:5rem;height:5rem;padding:0 1rem;background:transparent;border:1px solid var(--accent-border);border-radius:var(--radius-sm);cursor:pointer}.header_burger>span{display:block;width:100%;height:2px;background:var(--accent);border-radius:2px}.header_mobile{display:none;flex-direction:column;gap:.8rem;padding:2rem var(--main-padding);background:var(--surface-bg-strong);border-top:1px solid var(--accent-line-soft)}.header_mobile>div>ul>li>a{font-size:5.4rem;font-weight:600;color:var(--text);padding:1.2rem 0;border-bottom:1px solid var(--accent-line)}.header_mobile>div>ul>li>a:last-child{border-bottom:none}@media (max-width:1024px){.header_inner{padding:2rem var(--main-padding)}.header_logo{font-size:6.4rem}.header_logo>i{width:4.4rem;height:4.4rem}.header_nav{display:none}.header_cta_big{display:none}.header_burger{display:flex;width:14rem;height:14rem;gap:1.4rem;padding:0 3rem}.header_burger>span{height:4px}.header_mobile>a.header_mobile_cta{margin-top:1.6rem;padding:2.4rem 2rem;color:var(--bg-dark);background:var(--accent);border-radius:var(--radius-sm);border-bottom:none;text-align:center;text-transform:uppercase;letter-spacing:.06em;font-weight:800;font-size:4rem;box-shadow:0 0 28px var(--accent-glow-strong);transition:background 0.25s ease,box-shadow 0.25s ease}.header_mobile>a.header_mobile_cta:hover,.header_mobile>a.header_mobile_cta:active{background:var(--accent-bright);color:var(--bg-dark);box-shadow:0 0 36px var(--accent-glow-bright)}}