#header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: #0a192f;
  color: #00eaff;
  font-family: 'Courier New', monospace;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: space-between; /* este es el truco limpio */
  padding: 0 40px;
  border-bottom: 2px solid #00eaff;
  text-shadow: 0 0 4px #00eaff, 0 0 8px #00eaff, 0 0 12px #00eaff;
  box-shadow: 0 2px 5px rgba(0,0,0,0.5);
}

#header .actions {
  margin-right: 60px;
}

#header .username {
  font-weight: bold;
  text-shadow: 0 0 5px #00eaff, 0 0 10px #00eaff;
}

#header .actions a {
  color: #00fff7;
  text-decoration: none;
  font-family: 'Courier New', monospace;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 280px;
  text-shadow: 0 0 5px #00fff7;
}