*{
  padding: 0;
  margin: 0;
}
.header{
  width: 100%;
  height: 183px;
  /* background-color: lightblue; */
  background: linear-gradient(to right, lightblue, green);
}
.nav-bar{
  float: right;
}
.nav-bar ul{
  padding: 10px;
}
.nav-bar ul li{
  list-style: none;
  float: left;
  padding: 10px;
  margin: 5px;
}

.nav-bar ul li a{
  text-decoration: none;
  color: black;
}

.nav-bar ul li a:hover{
  color: blue;
  text-decoration: underline;
}


.header-styles{
  padding: 10px;
  width: 40%;
  float: left;
}
.header-styles img{
  width: 15%;
  float: left;
  border: solid black 2px;
  border-radius: 20%;
}
.header-styles h1{
  color: black;
  text-align: center;
}
.header-styles h2{
  clear: left;
}

.error{
  color:red;
  font-weight: bold;
}

/* .login-form{
  background-color: lightgray;
  margin: 10px auto;
  width: 30%;
  padding: 10px;
} */

.login-form{

  /* background-image: url("../images/site-logo.png"); */
  border-radius: 20px;
  border:2px solid black;
  padding: 10px;
  width: 25%;
  height: 300px;
  /* background-color: lightgray; */
  /* background-image: linear-gradient(#ccd9ff, #668cff); */
  background-image: linear-gradient(#ccd9ff, lightblue);
  margin:auto;
  margin-top:20px;
}

.login-form h1{
  text-align: center;
  margin: 10px;
  border-bottom: 5px double black;
}
.input{
  padding: 10px;
  text-align: center;
  font-weight: bold;
}
.login-form label{
}
.login-form input[type="text"]{
  float: right;
  width: 50%;
  padding: 5px;
  border: none;
}
.login-form input[type="password"]{
  float: right;
  width: 50%;
  padding: 5px;
  border: none;
}

.login-form input[type="submit"]{
  width: 80%;
  border-radius: 20px;
  border:2px solid black;
  position: relative;
  padding: 5px;
  margin-left: 10%;
}
.login-form input[type="submit"]:hover{
  background-color: #3366ff;
  font-weight: bold;
  color: white;
  cursor: pointer;
}

.login-form p{
  position: relative;
  top:20%;
}

.admin_options{
  padding: 10px;
  display: block;
  align-items: center;
  margin: auto;
  /* background-color: red; */
  width: 80%;
  height: 70vh;
}

.option{
  margin:10px;
  padding: 10px;
  background-color: lightgray;
  width: 45%;
  height: 200px;
  border:2px solid black;
  border-radius: 20px;
  float: left;
}
.option img{
  width: 40%;
  float: left;
}
.btn{
  background-color: white;
  float: right;
  margin: auto;
  padding: 5px;
  width: 50%;
  text-align: center;
  border:2px solid black;
  border-radius: 20px;
}
.btn:hover{
  background-color: blue;
  color: white;
}
.details{
  padding: 20px;
  float: right;
}
.details p{
  text-align: center;
}
.option a{
  text-decoration: none;
  color: black;
}


.admin_options ul {
}

.admin_options ul li{
  border:2px solid black;
  float: left;
  list-style: none;
  padding: 10px;
  margin: 10px;
}
.admin_options ul li a {
  text-decoration: none;
  color: black;
}
.admin_options ul li a:hover{
  color:blue;
  font-weight: bold;
}

#myProfileDetails{
  margin:10px auto;
  padding: 10px;
}
#myProfileDetails th{
  padding: 10px;
}
#myProfileDetails td{
  padding: 10px;
  align-items: center;
}

#myItems {
  font-family: Arial, Helvetica, sans-serif;
  border-collapse: collapse;
  width: 100%;
}

#myItems td, #myItems th {
  border: 1px solid #ddd;
  padding: 8px;
}

#myItems tr:nth-child(even){background-color: #f2f2f2;}

#myItems tr:hover {background-color: #ddd;}

#myItems th {
  padding-top: 12px;
  padding-bottom: 12px;
  text-align: left;
  background-color: #04AA6D;
  color: white;
}
.update_password{
  width: 40%;
  margin: auto;
  border:2px solid black;
  padding: 10px;
  border-radius: 20px;
}
.update_password h2{
  text-align: center;
  text-decoration: underline;
  margin: 10px;
}
.update_password label{
  width: 50px;
  background-color: red;
}
.footer{
  padding: 10px;
  height: 50px;
  /* background-color: lightblue; */
  background: linear-gradient(to right, lightblue, green);
  clear: both;
  text-align: center;
}

section{
  min-height:59.5vh ;
}


/* ================================
   RESPONSIVE – TABLETS (≤ 992px)
   ================================ */
@media (max-width: 992px) {

  .header {
    height: auto;
    padding: 20px;
  }

  .header-styles {
    width: 60%;
    float: none;
    margin: auto;
    text-align: center;
  }
  .header-styles img {
    width: 25%;
    float: none;
    display: block;
    margin: 0 auto 10px auto;
  }

  .nav-bar {
    float: none;
    text-align: center;
  }
  .nav-bar ul li {
    float: none;
    display: inline-block;
  }

  .login-form {
    width: 50%;
    height: auto;
  }

  .admin_options {
    width: 100%;
    height: auto;
  }
  .option {
    width: 90%;
    height: auto;
    float: none;
    margin: 10px auto;
  }
  .option img {
    width: 30%;
  }

  .update_password {
    width: 60%;
  }
}


/* ================================
   RESPONSIVE – MOBILE (≤ 600px)
   ================================ */
@media (max-width: 600px) {

  /* Header */
  .header {
    padding: 15px;
    text-align: center;
    height: auto;
  }

  .header-styles {
    width: 90%;
    padding: 5px;
  }
  .header-styles img {
    width: 35%;
  }

  /* Navbar */
  .nav-bar ul {
    padding: 0;
  }
  .nav-bar ul li {
    float: none;
    display: block;
    width: 100%;
    margin: 5px 0;
    text-align: center;
  }

  /* Login form */
  .login-form {
    width: 85%;
    height: auto;
    padding: 15px;
  }

  .login-form input[type="text"],
  .login-form input[type="password"] {
    float: none;
    width: 100%;
    margin-top: 5px;
  }

  .login-form input[type="submit"] {
    width: 100%;
    margin-left: 0;
  }

  .login-form p {
    top: 10%;
  }

  /* Admin options */
  .admin_options {
    padding: 5px;
  }

  .option {
    width: 95%;
    height: auto;
  }
  .option img {
    width: 50%;
    float: none;
    display: block;
    margin: 0 auto;
  }
  .details {
    float: none;
    text-align: center;
    padding: 10px 0;
  }

  .btn {
    width: 80%;
    float: none;
    margin: 10px auto;
    display: block;
  }

  /* Tables */
  #myItems th,
  #myItems td {
    font-size: 14px;
    padding: 5px;
  }

  /* Update password */
  .update_password {
    width: 90%;
  }

  /* Footer */
  .footer {
    height: auto;
    padding: 15px;
    font-size: 14px;
  }
}