.nav{position:fixed;top:0;left:0;right:0;z-index:var(--z-nav);height:var(--nav-height);display:flex;align-items:center;background:var(--color-nav-bg-default);transition:background var(--duration-base) var(--ease-smooth),box-shadow var(--duration-base) var(--ease-smooth);will-change:background,box-shadow}.nav.is-scrolled{background:var(--color-nav-bg-scrolled);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);box-shadow:var(--shadow-nav)}body.menu-open .nav.is-scrolled{backdrop-filter:none;-webkit-backdrop-filter:none}.nav__inner{display:flex;align-items:center;justify-content:space-between;gap:var(--space-8);width:100%}.nav__logo{flex-shrink:0;display:flex;align-items:center;text-decoration:none}.nav__logo img{height:36px;width:auto;display:block}.nav__links{display:none;align-items:center;gap:var(--space-2);list-style:none}@media(min-width:1024px){.nav__links{display:flex}}.nav__link{display:inline-flex;align-items:center;gap:var(--space-1);padding:var(--space-2) var(--space-3);font-size:var(--text-sm);font-weight:var(--font-weight-medium);color:var(--color-nav-link);text-decoration:none;border-radius:var(--radius-md);transition:color var(--duration-fast) var(--ease-smooth);white-space:nowrap;background:none;border:none;cursor:pointer;font-family:var(--font-sans);line-height:1;position:relative}.nav__link:hover{color:#fff;background:none}.nav__link:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}.nav__link.is-active{color:var(--color-nav-link-active)}.nav__divider{display:block;width:1px;height:16px;background:#ffffff26;margin-inline:var(--space-1);flex-shrink:0}.nav__link--labs{color:var(--color-accent);gap:var(--space-1)}.nav__link--labs:hover{color:var(--color-accent-hover)}.nav__external-icon{flex-shrink:0;opacity:.75}.nav__mobile-link--labs{color:var(--color-accent)}.nav__mobile-link--labs:hover{color:var(--color-accent-hover)}.nav .nav__cta{display:none;flex-shrink:0}@media(min-width:1024px){.nav .nav__cta{display:inline-flex}}.nav__hamburger{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:44px;height:44px;padding:0;background:none;border:none;cursor:pointer;-webkit-tap-highlight-color:transparent;flex-shrink:0}@media(min-width:1024px){.nav__hamburger{display:none}}.nav__hamburger-bar{display:block;width:24px;height:2px;background-color:#ffffffd9;border-radius:var(--radius-full);transform-origin:center;transition:transform var(--duration-fast) var(--ease-smooth),opacity var(--duration-fast) var(--ease-smooth),width var(--duration-fast) var(--ease-smooth);will-change:transform,opacity}.nav__hamburger.is-open .nav__hamburger-bar--top{transform:translateY(7px) rotate(45deg)}.nav__hamburger.is-open .nav__hamburger-bar--mid{opacity:0;transform:scaleX(0)}.nav__hamburger.is-open .nav__hamburger-bar--bot{transform:translateY(-7px) rotate(-45deg)}.nav__mobile-menu{position:fixed;inset:0;background:var(--color-surface-dark);overflow-y:auto;z-index:var(--z-overlay);display:flex;flex-direction:column;justify-content:space-between;padding:var(--space-6) var(--space-6) var(--space-10)}.nav__mobile-enter,.nav__mobile-leave{transition:transform .4s cubic-bezier(.22,1,.36,1)}.nav__mobile-enter-start,.nav__mobile-leave-end{transform:translateY(100%)}.nav__mobile-enter-end,.nav__mobile-leave-start{transform:translateY(0)}.nav__mobile-close{position:static;align-self:flex-end;width:44px;height:44px;border-radius:50%;background:#ffffff14;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#ffffffb3;transition:background var(--duration-fast) var(--ease-smooth),color var(--duration-fast) var(--ease-smooth);-webkit-tap-highlight-color:transparent;flex-shrink:0;margin-bottom:var(--space-6)}.nav__mobile-close svg{width:18px;height:18px}.nav__mobile-close:hover{background:#ffffff24;color:#fff}.nav__mobile-close:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}.nav__mobile-menu nav{display:flex;flex-direction:column;align-items:flex-start;gap:0;flex:1;justify-content:center;width:100%}.nav__mobile-link{display:block;text-align:left;padding:var(--space-3) 0;font-size:clamp(1.75rem,8vw,2.5rem);font-weight:var(--font-weight-bold);letter-spacing:var(--tracking-snug);color:#ffffffd9;text-decoration:none;line-height:1.1;transition:color var(--duration-fast) var(--ease-smooth)}.nav__mobile-link:hover,.nav__mobile-link.is-active{color:#fff}.nav__mobile-link:focus-visible{outline:2px solid var(--color-accent);outline-offset:4px}.nav__mobile-sublink{display:block;padding:var(--space-2) 0 var(--space-2) var(--space-6);font-size:clamp(1rem,4vw,1.25rem);font-weight:var(--font-weight-medium);color:#ffffff8c;text-decoration:none;line-height:1.2;transition:color var(--duration-fast) var(--ease-smooth)}.nav__mobile-sublink:hover{color:#ffffffd9}.nav__mobile-sublink:focus-visible{outline:2px solid var(--color-accent);outline-offset:4px}.nav__mobile-sep{display:none}.nav__mobile-cta{margin-top:var(--space-10);align-self:flex-start;padding-inline:var(--space-6);padding-block:var(--space-3);font-size:var(--text-sm)}.nav__dropdown-wrapper{position:relative}.nav__dropdown{position:absolute;top:calc(100% + var(--space-3));left:50%;transform:translate(-50%);min-width:260px;background:var(--color-surface-elevated);border:1px solid var(--color-border-strong);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);overflow:hidden;z-index:var(--z-dropdown)}.nav__dropdown-inner{padding:var(--space-2)}.nav__dropdown-item{display:block;padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);text-decoration:none;border-left:2px solid transparent;transition:background var(--duration-fast) var(--ease-smooth),border-color var(--duration-fast) var(--ease-smooth);cursor:pointer}.nav__dropdown-item:hover{background:var(--color-surface-card-hover);border-left-color:var(--color-accent)}.nav__dropdown-item:hover .nav__dropdown-item-label{color:var(--color-accent)}.nav__dropdown-item:focus-visible{outline:2px solid var(--color-accent);outline-offset:-2px}.nav__dropdown-item-label{display:block;font-size:var(--text-sm);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);line-height:var(--leading-snug);transition:color var(--duration-fast) var(--ease-smooth)}.nav__dropdown-item-desc{display:block;font-size:var(--text-xs);color:var(--color-text-muted);margin-top:var(--space-1);line-height:var(--leading-normal)}.nav__dropdown-chevron{transition:transform var(--duration-fast) var(--ease-smooth);flex-shrink:0}.nav__dropdown-chevron.is-rotated{transform:rotate(180deg)}.nav__dropdown-enter{transition:opacity var(--duration-fast) var(--ease-smooth),transform var(--duration-fast) var(--ease-smooth)}.nav__dropdown-enter-start{opacity:0;transform:translate(-50%) translateY(-8px)}.nav__dropdown-enter-end{opacity:1;transform:translate(-50%) translateY(0)}.nav__dropdown-leave{transition:opacity var(--duration-fast) var(--ease-smooth),transform var(--duration-fast) var(--ease-smooth)}.nav__dropdown-leave-start{opacity:1;transform:translate(-50%) translateY(0)}.nav__dropdown-leave-end{opacity:0;transform:translate(-50%) translateY(-8px)}@media(max-width:1023px){.nav__dropdown{display:none}}@media(max-height:500px)and (max-width:1023px){.nav__mobile-menu{padding-block:var(--space-4);justify-content:flex-start;gap:var(--space-3)}.nav__mobile-close{margin-bottom:var(--space-2)}.nav__mobile-menu nav{justify-content:flex-start;overflow-y:auto}.nav__mobile-link{font-size:1.25rem;padding:var(--space-2) 0}.nav__mobile-cta{margin-top:var(--space-4)}}