body {
    font-family: Arial, sans-serif;
    /*text-align: center;*/
   
    padding: 50px;
}

body.page-home {  
    text-align: center;  
}

body.page-home .button-container{  
    display: flex;
  justify-content: center;
  gap: 20px;
}

h1 {
    margin-bottom: 30px;
}

.button {
    padding: 15px 30px;
    font-size: 18px;
    text-decoration: none;
    background-color: #007BFF;
    color: white;
    border-radius: 5px;
}
.button:hover {
    background-color: #cee6ff;
}
h1 {
    margin-bottom: 30px;
}
.button-container {
    display: flex;
   /* justify-content: center;*/
    gap: 20px;
}
.button  {
    padding: 15px 30px;
    font-size: 18px;
    text-decoration: none;
    background-color: #007BFF;
    color: white;
    border-radius: 5px;
    border: none;
}
.button:hover {
  background-color: #003dd0;
  
}
 button:hover {
  background-color: #e0efff;
  border-radius:5px;
  border:solid 2px #77c0ff;
}

.center {
    margin: 0px auto;
}
table, th, td {
    border: 1px solid black;
    border-collapse: collapse;
    padding: 8px;
}

/* horni navigace */
nav, .navbar, .navbar-right {
   display: flex;
   color: white;
   gap: 30px;
}

nav {
  background: grey;
  background: #2f4476;
  border-radius:5px;
  justify-content: space-between;
  
 }
 nav a {
    color: white;
   }

 nav ul  {
   
    list-style-type: none;
    margin: 0;
  padding: 20px;
   }

#file  {
    display: block;
margin: 40px 0px 0px;
}
select, input[value^="Nahr"], #adminForm input{
    padding:10px 10px;
  border:1px solid gray;
  border-radius:4px;
  background-color: #f1f1f1;
  font-size: 100%;
  }

  /* admin */
  #adminForm  {
    display: grid;   
    grid-template-columns: 150px 1fr;
    width: 500px;
       row-gap: 10px;
       align-items: center;
}
#adminForm br {
  display: none;
}



#adminForm button, #openModal  {
 /*border: none;*/
 padding: 10px;
}

 #openModal  {
 margin-top:10px;
 }

#adminForm .buttons  {
    display: flex;
  margin-top: 10px;
  gap: 10px;
}

table td   {
  vertical-align: top;
}

table + form button   {
    margin-top: 20px;
  }
  .spatne    {
    background-color: lightcoral;
  }
  .ok    {
    background-color: lightgreen;
  }

  .page-teachersite  h2 + form {
    margin-bottom: -20px;
  }
  .selectfolder input#file+input[value^="Nahr"] {
   margin-top: 10px;
   margin-bottom: 20px;
  }

  .selectfolder input#file {
    margin-top: 10px;
   }

   .selectfolder li {
    margin-bottom: 10px;
   }

  .page-home #username {
    margin-top: 5px;
    margin-bottom:5px;
   }