.header{position:fixed;top:0;left:0;width:100%;z-index:var(--z-sticky);background:rgba(255,255,255,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid transparent;transition:all var(--duration-base) var(--ease-out)}.header.scrolled{background:rgba(255,255,255,.98);border-bottom-color:var(--dark-200);box-shadow:0 2px 20px rgba(0,0,0,.06)}.nav{display:flex;align-items:center;justify-content:space-between;height:76px}.nav__logo{display:flex;align-items:center;gap:var(--space-sm);font-weight:var(--fw-extrabold);font-size:1.35rem;color:var(--dark-900);z-index:10}.nav__logo-img{width:178px;height:auto;display:block}.nav__logo-icon{display:flex;align-items:center;justify-content:center;width:38px;height:38px;background:var(--primary-500);color:var(--dark-900);border-radius:var(--radius-md);font-size:1rem;transition:transform var(--duration-base) var(--ease-out)}.nav__logo:hover .nav__logo-icon{transform:rotate(-10deg) scale(1.05)}.nav__logo-dot{color:var(--primary-600);font-weight:var(--fw-semibold);font-size:.85em}.nav__menu{display:flex;align-items:center;gap:var(--space-xs)}.nav__link{display:flex;align-items:center;gap:6px;padding:.5rem 1rem;font-size:.935rem;font-weight:var(--fw-semibold);color:var(--dark-600);border-radius:var(--radius-md);transition:all var(--duration-fast) var(--ease-out);position:relative}.nav__link i{font-size:.65em;transition:transform var(--duration-fast) var(--ease-out)}.nav__link:hover,.nav__link--active{color:var(--dark-900);background:var(--dark-50)}.nav__link--active{color:var(--primary-700)}.nav__item--dropdown{position:relative}.nav__item--dropdown:after{content:"";position:absolute;top:100%;left:0;width:100%;height:16px;background:0 0;pointer-events:none}.nav__item--dropdown:hover:after{pointer-events:auto}.nav__dropdown{position:absolute;top:calc(100% + 12px);left:50%;transform:translateX(-50%) translateY(8px);min-width:220px;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);border:1px solid var(--dark-100);padding:var(--space-sm);opacity:0;visibility:hidden;pointer-events:none;transition:all var(--duration-base) var(--ease-out)}.nav__dropdown .nav__dropdown{display:none !important}.nav__dropdown:before{content:"";position:absolute;top:-6px;left:50%;transform:translateX(-50%) rotate(45deg);width:12px;height:12px;background:#fff;border-top:1px solid var(--dark-100);border-left:1px solid var(--dark-100)}@media (min-width:993px){.nav__item--dropdown:hover .nav__dropdown{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}.nav__item--dropdown:hover>.nav__link i{transform:rotate(180deg)}}.nav__dropdown li a{display:flex;align-items:center;gap:10px;padding:.65rem .85rem;font-size:.9rem;font-weight:var(--fw-semibold);color:var(--dark-600);border-radius:var(--radius-md);transition:all var(--duration-fast) var(--ease-out)}.nav__dropdown li a i{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:var(--primary-50);color:var(--primary-700);border-radius:var(--radius-sm);font-size:.85rem;transition:all var(--duration-fast) var(--ease-out)}.nav__dropdown li a:hover{background:var(--dark-50);color:var(--dark-900)}.nav__dropdown li a:hover i{background:var(--primary-500);color:var(--dark-900)}.nav__actions{display:flex;align-items:center;gap:var(--space-md);z-index:10}.nav__item--mobile-cta{display:none}.nav__toggle{display:none;flex-direction:column;gap:5px;padding:4px;width:32px}.nav__toggle span{display:block;width:100%;height:2.5px;background:var(--dark-800);border-radius:2px;transition:all var(--duration-base) var(--ease-out);transform-origin:center}.nav__toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}.nav__toggle.active span:nth-child(2){opacity:0;transform:scaleX(0)}.nav__toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}@media (max-width:992px){.nav__toggle{display:flex}.nav__menu{position:fixed;top:0;right:0;width:320px;height:100vh;background:#fff;flex-direction:column;align-items:flex-start;padding:100px var(--space-xl) var(--space-xl);gap:var(--space-xs);box-shadow:-10px 0 40px rgba(0,0,0,.1);transform:translateX(100%);transition:transform var(--duration-slow) var(--ease-in-out);overflow-y:auto}.nav__menu.open{transform:translateX(0)}.nav__link{width:100%;padding:.75rem 1rem;font-size:1rem}.nav__item--dropdown:after{display:none}.nav__dropdown{position:static;transform:none;box-shadow:none;border:none;border-left:3px solid var(--primary-500);border-radius:0;padding:0;margin-left:var(--space-md);opacity:1;visibility:visible;pointer-events:auto;max-height:0;overflow:hidden;transition:max-height var(--duration-base) var(--ease-out),padding var(--duration-base) var(--ease-out)}.nav__dropdown:before{display:none}.nav__item--dropdown.open .nav__dropdown{max-height:400px;padding:var(--space-xs) 0 var(--space-xs) var(--space-sm)}.nav__item--dropdown.open>.nav__link i{transform:rotate(180deg)}.nav__actions .btn{display:none}.nav__item--mobile-cta{display:block;width:100%;margin-top:var(--space-md);padding-top:var(--space-md);border-top:1px solid var(--dark-100)}.nav__item--mobile-cta .btn{width:100%;justify-content:center}}@media (max-width:576px){.nav__menu{width:100%}}