.topnav{display:flex;align-items:center;justify-content:center;padding:12px 20px 12px 76px;position:fixed;top:0;left:0;right:0}.topnav--light{background-color:#fff;border-bottom:1px solid #e5e7eb}.topnav--dark{background-color:#0d0d0d;border-bottom:1px solid #262626}.topnav__center{display:flex;align-items:center;gap:160px}.topnav__search,.topnav__search-placeholder{width:480px}.topnav__ask-btn{display:flex;align-items:center;gap:6px;padding:6px 12px;height:32px;border-radius:6px;text-decoration:none;position:relative;cursor:pointer;border:none}.topnav--light .topnav__ask-btn{background:#fff}.topnav--dark .topnav__ask-btn{background:#1a1a1a}.topnav__ask-btn:before{content:"";position:absolute;inset:-1px;border-radius:6px;padding:1px;background:linear-gradient(90deg,#8b5cf6,#ec4899 50%,#8b5cf6);background-size:300% 100%;-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;opacity:1;animation:askBtnBorderAnimation 3s linear infinite}@keyframes askBtnBorderAnimation{0%{background-position:0 0;filter:blur(.5px) brightness(1.2)}50%{filter:blur(.5px) brightness(1.2)}to{background-position:300% 0;filter:blur(.5px) brightness(1.2)}}.topnav__ask-icon{width:16px;height:16px}.topnav__ask-text{font-size:13px;font-weight:600;background:linear-gradient(90deg,#8b5cf6,#ec4899);-webkit-background-clip:text;background-clip:text;color:transparent;white-space:nowrap}