/* Century Schoolbook font is very similar to Computer Modern Math: cmmi */
.MATH    { font-family: "Century Schoolbook", serif; }
.MATH I  { font-family: "Century Schoolbook", serif; font-style: italic }
.BOLDMATH { font-family: "Century Schoolbook", serif; font-weight: bold }

/* implement both fixed-size and relative sizes */
SMALL.XTINY		{ font-size : xx-small }
SMALL.TINY		{ font-size : x-small  }
SMALL.SCRIPTSIZE	{ font-size : smaller  }
SMALL.FOOTNOTESIZE	{ font-size : small    }
SMALL.SMALL		{  }
BIG.LARGE		{  }
BIG.XLARGE		{ font-size : large    }
BIG.XXLARGE		{ font-size : x-large  }
BIG.HUGE		{ font-size : larger   }
BIG.XHUGE		{ font-size : xx-large }

/* heading styles */
H1		{  }
H2		{  }
H3		{  }
H4		{  }
H5		{  }

/* mathematics styles */
DIV.displaymath		{ }	/* math displays */
TD.eqno			{ }	/* equation-number cells */


/* document-specific styles come next */
DIV.navigation		{   }
SPAN.textit		{ font-style: italic  }

/* added by Mike Fleming */

* The sidebar menu */
.sidenav {
  height: 100%; /* Full-height: remove this if you want "auto" height */
  width: 160px; /* Set the width of the sidebar */
  position: fixed; /* Fixed Sidebar (stay in place on scroll) */
  z-index: 1; /* Stay on top */
  top: 0; /* Stay at the top */
  left: 0;
  background-color: #111; /* Black */
  overflow-x: hidden; /* Disable horizontal scroll */
  padding-top: 20px;
}

/* The navigation menu links */
.sidenav a {
  padding: 6px 8px 6px 16px;
  text-decoration: none;
  font-size: 25px;
  color: #818181;
  display: block;
}

/* When you mouse over the navigation links, change their color */
.sidenav a:hover {
  color: #f1f1f1;
}

/* Style page content */
.main {
  margin-left: 160px; /* Same as the width of the sidebar */
  padding: 0px 10px;
}

/* On smaller screens, where height is less than 450px, change the style of the sidebar (less padding and a smaller font size) */
@media screen and (max-height: 450px) {
  .sidenav {padding-top: 15px;}
  .sidenav a {font-size: 18px;}
}

/*  added by Mike Fleming  https://www.w3schools.com/howto/howto_js_sidenav.asp */

/* https://www.w3schools.com/howto/howto_js_topnav.asp */

/* Add a black background color to the top navigation */
.topnav {
  background-color: #333;
  overflow: hidden;
}

/* Style the links inside the navigation bar */
.topnav a {
  float: left;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

/* Change the color of links on hover */
.topnav a:hover {
  background-color: #ddd;
  color: black;
}

/* Add a color to the active/current link */
.topnav a.active {
  background-color: #4CAF50;
  color: white;
}

/* added by Mike Fleming https://www.w3schools.com/howto/howto_css_login_form_navbar.asp */
 * {box-sizing: border-box;}

/* Style the navbar */
.topnav {
  overflow: hidden;
  background-color: #e9e9e9;
}

/* Navbar links */
.topnav a {
  float: left;
  display: block;
  color: black;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

/* Navbar links on mouse-over */
.topnav a:hover {
  background-color: #ddd;
  color: black;
}

/* Active/current link */
.topnav a.active {
  background-color: #2196F3;
  color: white;
}

/* Style the input container */
.topnav .login-container {
  float: right;
}

/* Style the input field inside the navbar */
.topnav input[type=text] {
  padding: 6px;
  margin-top: 8px;
  font-size: 17px;
  border: none;
  width: 150px; /* adjust as needed (as long as it doesn't break the topnav) */
}

/* Style the button inside the input container */
.topnav .login-container button {
  float: right;
  padding: 6px;
  margin-top: 8px;
  margin-right: 16px;
  background: #ddd;
  font-size: 17px;
  border: none;
  cursor: pointer;
}

.topnav .login-container button:hover {
  background: #ccc;
}

/* Add responsiveness - On small screens, display the navbar vertically instead of horizontally */
@media screen and (max-width: 600px) {
  .topnav .login-container {
    float: none;
  }
  .topnav a, .topnav input[type=text], .topnav .login-container button {
    float: none;
    display: block;
    text-align: left;
    width: 100%;
    margin: 0;
    padding: 14px;
  }
  .topnav input[type=text] {
    border: 1px solid #ccc;
  }
}

/* added by Mike Fleming  https://www.w3schools.com/howto/howto_js_password_validation.asp */

 /* Style all input fields */
input {
  width: 100%;
  padding: 12px;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-sizing: border-box;
  margin-top: 6px;
  margin-bottom: 16px;
}

/* Style the submit button */
input[type=submit] {
  background-color: #4CAF50;
  color: white;
}

/* Style the container for inputs */
.container {
  background-color: #f1f1f1;
  padding: 20px;
}

/* The message box is shown when the user clicks on the password field */
#message {
  display:none;
  background: #f1f1f1;
  color: #000;
  position: relative;
  padding: 20px;
  margin-top: 10px;
}

#message p {
  padding: 10px 35px;
  font-size: 18px;
}

/* Add a green text color and a checkmark when the requirements are right */
.valid {
  color: green;
}

.valid:before {
  position: relative;
  left: -35px;
  content: "✔";
}

/* Add a red text color and an "x" icon when the requirements are wrong */
.invalid {
  color: red;
}

.invalid:before {
  position: relative;
  left: -35px;
  content: "✖";
}