.topnav{position:sticky;top:0;z-index:100;background:rgba(3,4,5,0.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border-subtle);}
.topnav-inner{display:flex;align-items:center;justify-content:space-between;height:64px;}
.topnav-logo img{height:40px;width:auto;mix-blend-mode:screen;}
.topnav-links{display:none;gap:28px;list-style:none;}
@media (min-width:768px){.topnav-links{display:flex;}}
.topnav-links a{font-size:11.5px;font-weight:500;letter-spacing:0.14em;text-transform:uppercase;color:var(--steel-400);transition:color var(--transition);}
.topnav-links a:hover{color:var(--metal-100);}
.topnav-actions{display:flex;align-items:center;gap:18px;}
.topnav-cta{display:inline-flex;align-items:center;gap:8px;padding:8px 20px;background:var(--metal-100);border-radius:2px;font-size:11.5px;font-weight:600;letter-spacing:0.14em;text-transform:uppercase;color:var(--obsidian-950);transition:opacity var(--transition),box-shadow var(--transition);}
.topnav-cta:hover{opacity:0.9;box-shadow:0 0 20px rgba(185,191,198,0.28);color:var(--obsidian-950);}