.nav-header {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid var(--border);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    color: var(--text);
}

.brand-icon {
    font-size: 1.3rem;
    color: var(--accent);
}

.brand-text {
    font-size: 0.95rem;
    font-weight: 600;
}

.nav-links {
    padding: 0.75rem 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 0.75rem;
    border-radius: 6px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background 0.15s, color 0.15s;
}

.nav-link:hover {
    background: var(--bg-hover);
    color: var(--text);
}

.nav-link.active {
    background: rgba(0, 212, 255, 0.08);
    color: var(--accent);
}

.nav-icon {
    width: 1.1rem;
    height: 1.1rem;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .nav-header {
        padding: 0.75rem 1rem;
    }
    .nav-links {
        flex-direction: row;
        padding: 0.5rem;
        gap: 0.25rem;
    }
    .nav-link {
        flex: 1;
        justify-content: center;
        padding: 0.5rem;
        font-size: 0.8rem;
    }
    .brand-text {
        font-size: 0.85rem;
    }
}