{
box-sizing: border-box;
}

*:focus {
  outline: none;
}
body {
font-family: Arial;
background-color: #3498DB;
padding: 50px;
}
.login {
margin: 20px auto;
width: 300px;
}
.login-screen {
background-color: #FFF;
padding: 20px;
border-radius: 5px
}

.app-title {
text-align: center;
color: #777;
}

.login-form {
text-align: center;
}
.control-group {
margin-bottom: 10px;
}

input {
text-align: center;
background-color: #ECF0F1;
border: 2px solid transparent;
border-radius: 3px;
font-size: 16px;
font-weight: 200;
padding: 10px 0;
width: 250px;
transition: border .5s;
}

input:focus {
border: 2px solid #3498DB;
box-shadow: none;
}

.btn {
  border: 2px solid transparent;
  background: #3498DB;
  color: #ffffff;
  font-size: 16px;
  line-height: 25px;
  padding: 10px 0;
  text-decoration: none;
  text-shadow: none;
  border-radius: 3px;
  box-shadow: none;
  transition: 0.25s;
  display: block;
  width: 250px;
  margin: 0 auto;
}

.btn:hover {
  background-color: #2980B9;
}

.login-link {
  font-size: 12px;
  color: #444;
  display: block;
  margin-top: 12px;
}

{
   box-sizing: border-box;
}

*:focus {
  outline: none;
}

body {
  font-family: Arial, sans-serif;
  background-color: #f8f9fa;
  padding: 20px;
}

.menu-section {
  border-right: 1px solid #ddd;
  padding-right: 0;
}

.content-section {
  padding: 20px;
}

.list-group-item {
  cursor: pointer;
}

.list-group-item:hover {
  background-color: #f1f1f1;
}

h2, h3 {
  color: #333;
}

  .active {
    background-color: blue;
    color: white;
  }
  table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px; /* Add margin between tables */
  }
  th, td {
    border: 1px solid black;
    padding: 8px;
    text-align: center;
  }
  th {
    background-color: #f2f2f2;
  }