.modern-nav{position:fixed;left:50%;transform:translateX(-50%);top:12px;width:min(1100px,calc(100% - 24px));display:flex;align-items:center;justify-content:space-between;padding:8px 12px;border-radius:12px;background:linear-gradient(180deg,rgba(255,255,255,0.95),rgba(250,251,255,0.95));box-shadow:0 10px 30px rgba(6,24,44,0.08);z-index:99999;border:1px solid rgba(255,255,255,0.6)}.nav-btn{padding:8px 12px;border-radius:10px;border:none;background:linear-gradient(90deg,#0d6efd,#00b4d8);color:#fff;font-weight:700;cursor:pointer}.nav-btn.secondary{background:transparent;color:#07304a;border:1px solid rgba(7,48,74,0.06)}