.topnav{position:sticky;top:0;z-index:50;background:var(--nav-bg);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--nav-border);color:var(--nav-fg);transition:background-color .2s ease,border-color .2s ease,color .2s ease}.topnav-inner{max-width:1200px;margin:0 auto;padding:0 24px;height:52px;display:flex;align-items:center;gap:32px}.topnav-brand{display:inline-flex;align-items:center;gap:8px;color:var(--nav-fg);text-decoration:none;font-size:19px;font-weight:var(--weight-semibold);letter-spacing:-.01em}.topnav-brand span{font-weight:var(--weight-semibold)}.topnav-links{display:flex;align-items:center;gap:4px;margin-left:auto}.topnav-link{display:inline-flex;align-items:center;height:32px;padding:0 12px;border-radius:var(--radius-control);color:var(--nav-fg);opacity:.85;font-size:13px;font-weight:var(--weight-regular);text-decoration:none;white-space:nowrap;transition:opacity .14s ease,background-color .14s ease}.topnav-link:hover{opacity:1;color:var(--nav-fg)}.topnav-link.is-active{opacity:1}.topnav-menu-btn{display:none;margin-left:auto;align-items:center;justify-content:center;width:40px;height:40px;border:0;background:transparent;color:var(--nav-fg);cursor:pointer;border-radius:var(--radius-control)}.topnav-menu-btn:hover{background:#7f7f7f1a}.theme-toggle{display:inline-flex;align-items:center;border-radius:var(--radius-pill);border:1px solid var(--nav-border);padding:2px;background:#7f7f7f14;margin-left:8px}.theme-toggle button{border:0;background:transparent;cursor:pointer;font-family:inherit;font-size:11px;font-weight:var(--weight-semibold);letter-spacing:.01em;color:var(--nav-fg);opacity:.7;padding:4px 10px;border-radius:var(--radius-pill);display:inline-flex;align-items:center;gap:4px;transition:background-color .14s ease,color .14s ease,opacity .14s ease}.theme-toggle button:hover{opacity:1}.theme-toggle button.is-active{background:var(--accent);color:var(--on-accent);opacity:1}.mobile-drawer{background:var(--nav-bg);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-top:1px solid var(--nav-border);padding:12px 24px 24px;display:flex;flex-direction:column;gap:18px}.mobile-drawer-links{display:flex;flex-direction:column;gap:2px}.mobile-drawer-link{display:block;padding:14px 8px;font-size:18px;font-weight:var(--weight-semibold);color:var(--nav-fg);text-decoration:none;border-bottom:1px solid var(--nav-border)}.mobile-drawer-link:last-child{border-bottom:0}.mobile-drawer-link.is-active{color:var(--accent)}.mobile-drawer-theme{display:flex;flex-direction:column;gap:10px;padding-top:8px}.mobile-drawer-eyebrow{margin:0;font-size:12px;font-weight:var(--weight-heavy);letter-spacing:.06em;text-transform:uppercase;color:var(--fg-muted)}.mobile-drawer-theme .theme-toggle{align-self:flex-start;margin-left:0}@media (max-width: 820px){.topnav-links-desktop{display:none}.topnav-menu-btn{display:inline-flex}.topnav-inner{padding-left:20px;padding-right:20px;gap:12px}}@media (max-width: 380px){.topnav-brand span{display:none}}.subnav{position:sticky;top:52px;z-index:45;background:var(--subnav-bg);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--nav-border);color:var(--subnav-fg);transition:background-color .2s ease,border-color .2s ease,color .2s ease}.subnav-inner{max-width:1200px;margin:0 auto;padding:0 24px;min-height:52px;display:flex;align-items:center;gap:24px}.subnav-links{display:flex;align-items:stretch;gap:20px;margin-left:auto;min-height:52px}.subnav-link{position:relative;display:inline-flex;align-items:center;color:var(--subnav-fg);opacity:.78;font-size:14px;font-weight:var(--weight-regular);text-decoration:none;white-space:nowrap;transition:opacity .14s ease;cursor:pointer;background:none;border:0;font-family:inherit;padding:0}.subnav-link:hover{opacity:1;color:var(--subnav-fg)}.subnav-link.is-active{opacity:1;font-weight:var(--weight-medium)}.subnav-link.is-active:after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:currentColor}@media (max-width: 720px){.subnav-inner{padding:0 20px;min-height:44px}.subnav-links{margin-left:0;gap:20px;overflow-x:auto;overflow-y:hidden;flex-wrap:nowrap;min-height:44px;-webkit-overflow-scrolling:touch;scrollbar-width:none}.subnav-links::-webkit-scrollbar{display:none}}.mega-footer{background:var(--footer-bg);color:var(--footer-fg);border-top:1px solid var(--border);padding:56px 0 28px;font-size:13px;line-height:1.5;margin-top:72px;transition:background-color .2s ease,color .2s ease}.mega-footer a{color:var(--footer-fg);text-decoration:none}.mega-footer a:hover{color:var(--accent);text-decoration:underline}.mega-footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}.mega-col h4{color:var(--footer-heading);font-size:13px;font-weight:var(--weight-semibold);margin:0 0 10px}.mega-col ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}.mega-bottom{margin-top:40px;padding-top:18px;border-top:1px solid var(--border);display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;font-size:12px;color:var(--fg-quiet)}.mega-bottom-links{display:flex;gap:8px;flex-wrap:wrap}.mega-bottom-links a,.mega-bottom-links span{color:var(--fg-quiet)}@media (max-width: 760px){.mega-footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width: 480px){.mega-footer-grid{grid-template-columns:1fr;gap:20px}.mega-bottom{flex-direction:column;align-items:flex-start;gap:8px}}