nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 500;
    display: flex; justify-content: space-between; align-items: center;
    padding: 1.1rem 3rem;
    background: rgba(2,8,18,0.88);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(12px);
}

.nav-brand { display: flex; align-items: center; gap: 0.75rem; }

.nav-shield {
    width: 32px; height: 32px;
    border: 2px solid var(--blue);
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem; color: var(--blue);
    box-shadow: 0 0 12px var(--blue-glow), inset 0 0 8px var(--blue-dim);
    animation: pulse-border 3s infinite;
}

.nav-title { font-family: 'Orbitron', monospace; font-size: 0.75rem; font-weight: 600; color: var(--blue); letter-spacing: 3px; text-transform: uppercase; }

nav ul { list-style: none; display: flex; gap: 2.5rem; }
nav ul a { color: var(--dim); text-decoration: none; font-size: 0.8rem; letter-spacing: 2px; text-transform: uppercase; font-weight: 500; transition: color 0.2s; position: relative; }
nav ul a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 1px; background: var(--blue); transition: width 0.3s; box-shadow: 0 0 6px var(--blue); }
nav ul a:hover { color: var(--blue); }
nav ul a:hover::after { width: 100%; }

.status-bar {
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 500;
    display: flex; justify-content: space-between; align-items: center;
    padding: 0.4rem 3rem;
    background: rgba(2,8,18,0.9);
    border-top: 1px solid var(--border);
    font-family: 'Orbitron', monospace; font-size: 0.6rem; letter-spacing: 2px; color: var(--dim);
}
.status-item { display: flex; align-items: center; gap: 0.5rem; }
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); box-shadow: 0 0 6px var(--green); animation: blink-dot 2s infinite; }

@media (max-width: 768px) { nav { padding: 1rem 1.5rem; } nav ul { gap: 1.2rem; } }