.illusia-nav{position:sticky;top:0;z-index:1000;width:100%;isolation:isolate}:root.no-nav-sticky .illusia-nav{position:relative}.illusia-nav__bg{position:absolute;inset:0;background:hsl(var(--bg-900-free) / .78);backdrop-filter:blur(clamp(8px, 1.5vw, 16px));-webkit-backdrop-filter:blur(clamp(8px, 1.5vw, 16px));border-bottom:1px solid var(--glass-border);z-index:-1}.illusia-nav .nav-observer{position:absolute;top:0;left:0;width:1px;height:1px;pointer-events:none}.illusia-nav__wrapper{display:flex;align-items:center;gap:var(--space-md);max-width:var(--site-width);margin:0 auto;padding:var(--space-xs) var(--space-md);min-height:clamp(48px, 6vw, 56px)}.illusia-nav__identity{display:flex;align-items:center;gap:var(--space-xs);flex-shrink:0;text-decoration:none;color:inherit}.illusia-nav__logo{flex-shrink:0;line-height:0}.illusia-nav__logo img,.illusia-nav__logo .custom-logo{height:clamp(28px, 4vw, 36px);width:auto;display:block}.illusia-nav__site-name{font-family:var(--ff-display);font-weight:600;font-size:var(--text-md);line-height:1.2;color:var(--fg-100);margin:0;padding:0}.illusia-nav__identity:hover .illusia-nav__site-name,.illusia-nav__identity:focus-visible .illusia-nav__site-name{color:var(--amber)}.illusia-nav__identity:focus-visible{outline:2px solid hsl(var(--amber-free) / .45);outline-offset:2px;border-radius:var(--r-xs)}.illusia-nav__tagline{font-family:var(--ff-mono);font-size:var(--text-2xs);text-transform:uppercase;letter-spacing:.08em;color:var(--fg-700);line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:20ch}.illusia-nav__menu{flex:1;min-width:0;display:flex;justify-content:center}.illusia-nav__list{display:flex;align-items:center;gap:var(--space-xs);list-style:none;margin:0;padding:0}.illusia-nav__list .menu-item{position:relative}.illusia-nav__list .menu-item>a{display:block;font-family:var(--ff-ui);font-size:var(--text-sm);font-weight:400;color:var(--fg-400);text-decoration:none;padding:var(--space-2xs) var(--space-xs);white-space:nowrap;transition:color var(--t-fast) var(--ease-std);position:relative}.illusia-nav__list .menu-item>a::after{content:'';position:absolute;bottom:0;left:var(--space-xs);right:var(--space-xs);height:2px;background:var(--amber);border-radius:1px;transform:scaleX(0);transform-origin:center;transition:transform var(--t-mid) var(--ease-expo)}.illusia-nav__list .menu-item>a:hover,.illusia-nav__list .menu-item>a:focus-visible{color:var(--amber)}.illusia-nav__list .menu-item>a:hover::after,.illusia-nav__list .menu-item>a:focus-visible::after{transform:scaleX(1)}.illusia-nav__list .menu-item.current-menu-item>a,.illusia-nav__list .menu-item.current-menu-ancestor>a{color:var(--amber)}.illusia-nav__list .menu-item.current-menu-item>a::after{transform:scaleX(1)}.illusia-nav__list .menu-item>a:focus-visible{outline:2px solid hsl(var(--amber-free) / .45);outline-offset:2px;border-radius:var(--r-xs)}.illusia-nav__list .sub-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(4px);min-width:clamp(150px, 20vw, 200px);list-style:none;margin:0;padding:var(--space-2xs) 0;background:hsl(var(--bg-900-free) / .92);backdrop-filter:blur(clamp(8px, 1.5vw, 16px));-webkit-backdrop-filter:blur(clamp(8px, 1.5vw, 16px));border:1px solid var(--glass-border);border-radius:var(--r-md);opacity:0;visibility:hidden;transition:opacity var(--t-mid) var(--ease-std),transform var(--t-mid) var(--ease-expo),visibility 0s var(--t-mid);z-index:100}.illusia-nav__list .menu-item:hover>.sub-menu,.illusia-nav__list .menu-item:focus-within>.sub-menu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);transition:opacity var(--t-mid) var(--ease-std),transform var(--t-mid) var(--ease-expo),visibility 0s}.illusia-nav__list .sub-menu .menu-item>a{font-size:var(--text-xs);padding:var(--space-2xs) var(--space-sm);color:var(--fg-400)}.illusia-nav__list .sub-menu .menu-item>a::after{display:none}.illusia-nav__list .sub-menu .menu-item>a:hover{color:var(--amber);background:hsl(var(--amber-free) / .06)}.illusia-nav__actions{flex-shrink:0;display:flex;align-items:center}.illusia-nav__actions .icon-menu{display:flex;align-items:center;gap:var(--space-2xs)}.illusia-nav__actions .icon-menu._in-navigation{display:flex;content-visibility:visible}.illusia-nav__actions .menu-item-icon>a,.illusia-nav__actions .menu-item-icon>button,.illusia-nav__actions .menu-item-icon>label{display:flex;align-items:center;justify-content:center;width:clamp(32px, 4vw, 36px);height:clamp(32px, 4vw, 36px);border-radius:var(--r-sm);color:var(--fg-500);transition:color var(--t-fast) var(--ease-std),background var(--t-fast) var(--ease-std);cursor:pointer;border:none;background:none;padding:0;font-size:var(--text-sm)}.illusia-nav__actions .menu-item-icon>a:hover,.illusia-nav__actions .menu-item-icon>button:hover,.illusia-nav__actions .menu-item-icon>label:hover{color:var(--amber);background:hsl(var(--amber-free) / .08)}.illusia-nav__actions .menu-item-icon>a:focus-visible,.illusia-nav__actions .menu-item-icon>button:focus-visible,.illusia-nav__actions .menu-item-icon>label:focus-visible{outline:2px solid hsl(var(--amber-free) / .45);outline-offset:2px}.illusia-nav .illusia-nav__mobile-btn{display:none;align-items:center;justify-content:center;gap:var(--space-2xs);background:none;border:none;color:var(--fg-400);font-family:var(--ff-mono);font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.08em;padding:var(--space-2xs) var(--space-xs);border-radius:var(--r-sm);cursor:pointer;transition:color var(--t-fast) var(--ease-std),background var(--t-fast) var(--ease-std)}.illusia-nav__mobile-btn:hover{color:var(--amber);background:hsl(var(--amber-free) / .08)}.illusia-nav__mobile-btn:focus-visible{outline:2px solid hsl(var(--amber-free) / .45);outline-offset:2px}.illusia-nav__mobile-btn .icon{font-size:1.1em}.illusia-nav__mobile-btn .mobile-menu-button__label{content-visibility:visible}.illusia-nav__mobile-btn .off,.illusia-nav__mobile-btn .on{content-visibility:visible}body:not(.mobile-menu-open) .illusia-nav__mobile-btn .on{display:none}body.mobile-menu-open .illusia-nav__mobile-btn .off{display:none}.illusia-nav{transition:box-shadow var(--t-mid) var(--ease-std)}.illusia-nav._scrolled .illusia-nav__bg{box-shadow:0 1px 12px hsl(var(--bg-950-free) / .4)}:root.no-nav-sticky .illusia-nav._scrolled .illusia-nav__bg{box-shadow:none}@media only screen and (min-width:601px){.admin-bar:not(.mobile-menu-open) .illusia-nav{top:calc(45.9px - var(--nav-observer-offset, 0px))}.admin-bar:not(.mobile-menu-open) .illusia-nav .nav-observer{top:calc(-47px + var(--nav-observer-offset, 0px))}}@media only screen and (min-width:783px){.admin-bar:not(.mobile-menu-open) .illusia-nav{top:calc(31.9px - var(--nav-observer-offset, 0px))}.admin-bar:not(.mobile-menu-open) .illusia-nav .nav-observer{top:calc(-33px + var(--nav-observer-offset, 0px))}}.illusia-nav__bg::after{content:'';position:absolute;bottom:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,hsl(var(--amber-free) / .15),transparent)}:root[data-mode=light] .illusia-nav__logo img,:root[data-mode=light] .illusia-nav__logo .custom-logo{filter:brightness(.2) contrast(1.2)}:root[data-mode=light] .illusia-nav__bg{background:hsl(var(--bg-50-free) / .85);border-bottom-color:hsl(var(--illusia-border-base) / .12)}:root[data-mode=light] .illusia-nav._scrolled .illusia-nav__bg{box-shadow:0 1px 12px hsl(var(--bg-500-free) / .15)}:root[data-mode=light] .illusia-nav__list .sub-menu{background:hsl(var(--bg-50-free) / .95);border-color:hsl(var(--illusia-border-base) / .12)}:root[data-mode=light] .illusia-nav__list .sub-menu .menu-item>a{color:var(--fg-400)}:root[data-mode=light] .illusia-nav__list .sub-menu .menu-item>a:hover{color:var(--amber-dim)}@media (max-width:768px){.illusia-nav__menu{display:none}.illusia-nav__actions{display:none}.illusia-nav .illusia-nav__mobile-btn{display:flex;margin-left:auto}.illusia-nav__wrapper{gap:var(--space-xs)}}@media (max-width:480px){.illusia-nav__tagline{display:none}.illusia-nav__mobile-btn .mobile-menu-button__label{display:none}.illusia-nav__wrapper{padding:var(--space-2xs) var(--space-xs)}}@media (prefers-reduced-transparency:reduce){.illusia-nav__bg,.illusia-nav__list .sub-menu{backdrop-filter:none;-webkit-backdrop-filter:none;background:var(--bg-900)}:root[data-mode=light] .illusia-nav__bg,:root[data-mode=light] .illusia-nav__list .sub-menu{background:var(--bg-50)}}@media (prefers-reduced-motion:reduce){.illusia-nav__list .menu-item>a::after{transition:none}.illusia-nav__list .sub-menu{transition:none}.illusia-nav{transition:none}}