.nav{position:fixed;top:0;left:0;width:100%;height:var(--nav-height);z-index:1000;transition:background var(--duration-normal) var(--ease-out),box-shadow var(--duration-normal) var(--ease-out)}.nav>.container{height:100%}.nav.is-scrolled{background:var(--color-midnight-80);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));box-shadow:0 1px #ffffff0d}.nav__logo{display:flex;align-items:center;color:var(--color-surface);transition:color var(--duration-normal)}.nav__logo svg{height:28px;width:auto}.nav__logo-text{display:none;font-family:var(--font-heading);font-weight:600;font-size:22px;line-height:1}.nav__logo-text-chi{color:var(--color-gold)}.nav__logo-symbol,.nav__logo-lingo{transition:fill var(--duration-normal)}.nav.is-light .nav__logo{color:var(--color-midnight)}.nav__links{display:flex;align-items:center;gap:var(--space-xl)}.nav__link{font-family:var(--font-heading);font-weight:600;font-size:var(--text-body);color:#ffffffb3;transition:color var(--duration-fast);position:relative}.nav__link:hover,.nav__link.is-active{color:var(--color-surface)}.nav__link:focus-visible{color:var(--color-surface);outline:none}.nav__link.is-active:after{content:"";position:absolute;bottom:-4px;left:0;width:100%;height:2px;background-color:var(--color-gold);border-radius:1px}.nav__hamburger:focus-visible{outline:2px solid var(--color-blue);outline-offset:2px}.nav__hamburger{width:32px;height:24px;display:flex;flex-direction:column;justify-content:space-between;padding:0}.nav__hamburger span{display:block;width:100%;height:2px;background-color:var(--color-surface);border-radius:1px;transition:all var(--duration-normal) var(--ease-out);transform-origin:center}.nav__hamburger.is-open span:nth-child(1){transform:translateY(11px) rotate(45deg)}.nav__hamburger.is-open span:nth-child(2){opacity:0}.nav__hamburger.is-open span:nth-child(3){transform:translateY(-11px) rotate(-45deg)}.nav__mobile{position:fixed;top:0;right:-100%;width:100%;height:100vh;background-color:var(--color-midnight-95);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));display:flex;align-items:center;justify-content:center;transition:right var(--duration-slow) var(--ease-out);z-index:999}.nav__mobile.is-open{right:0}.nav__mobile-links{display:flex;flex-direction:column;align-items:center;gap:var(--space-xl)}.nav__mobile-link{font-family:var(--font-heading);font-weight:600;font-size:var(--text-h2);color:var(--color-surface);opacity:0;transform:translateY(20px);transition:opacity var(--duration-normal) var(--ease-out),transform var(--duration-normal) var(--ease-out)}.nav__mobile.is-open .nav__mobile-link{opacity:1;transform:translateY(0)}.nav__mobile.is-open .nav__mobile-link:nth-child(1){transition-delay:.1s}.nav__mobile.is-open .nav__mobile-link:nth-child(2){transition-delay:.2s}.nav__mobile.is-open .nav__mobile-link:nth-child(3){transition-delay:.3s}.nav__mobile.is-open .nav__mobile-link:nth-child(4){transition-delay:.4s}.nav__mobile.is-open .nav__mobile-link:nth-child(5){transition-delay:.5s}