.nav{position:fixed;top:0;left:0;right:0;height:var(--header-height);background:var(--white);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 20px;gap:24px;z-index:100}.nav-build-badge{margin-left:auto;flex-shrink:0;font-size:11px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.35;padding:4px 8px;border-radius:6px;border:1px solid var(--border);background:color-mix(in srgb,var(--bg) 88%,var(--border) 12%);color:var(--text-muted);max-width:min(200px,42vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}html.dark .nav-build-badge{background:color-mix(in srgb,var(--bg) 85%,var(--border) 15%)}.nav-logo{font-size:18px;font-weight:700;color:var(--text);text-decoration:none}.nav-links{display:flex;gap:16px}.nav-links a{color:var(--text-muted);font-weight:500;padding:4px 0;border-bottom:2px solid transparent;text-decoration:none}.nav-links a.active,.nav-links a:hover{color:var(--accent);border-bottom-color:var(--accent)}