/* CSS Variables */
:root {
  --navy-color: #203354;
  --border-color: lightgray;
}

* {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Gill Sans', 'Gill Sans MT', Calibri,
   Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  /* font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif, Courier, monospace; */
  /* default box-sizing is content-box */
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

/** Not supported by most Safari iOS versions This attribute is 
    replaced by the script in main.js */
/* html {
  scroll-behavior: smooth;
} */

body::-webkit-scrollbar {
  width: 12px;             
}

body::-webkit-scrollbar-thumb {
  background-color: var(--navy-color);    
}


/*
 ========================================== 
  Global Classes
 ========================================== 
*/
.grid-container.three-columns {
  display: grid;
  grid-template: repeat(2, 1fr) / repeat(3, 1fr);
  grid-auto-rows: 1fr;
}

.grid-container.two-columns {
  display: grid;
  grid-template: repeat(2, 1fr) / repeat(2, 1fr);
  grid-auto-rows: 1fr;
}




/*
 ========================================== 
  Header
 ========================================== 
*/

header {
  background-color: var(--navy-color);
  width: 100%;
  text-align: center;
  color: white;
  z-index: 10;
}

header h1 {
  /* width: auto; */
  font-size: 275%;
}


/*
 ========================================== 
  Nav bar
 ========================================== 
*/

nav {
  background-color:  var(--navy-color);
  /* 
    This means that when the nav bar
    reaches the top,
    it'll stick to the top of the page 
  */
  position: -webkit-sticky;
  position: sticky;
  z-index: 9;
  top: 0;
  /* offset-x | offset-y | blur-radius | spread-radius | color */
  box-shadow: 0 1em 0.75em 0 rgba(161, 161, 160, 0.3);
}

nav ul {
  list-style: none;
  text-align: center;
  width: 75%;
  margin: 0 auto;
}

a {
  text-decoration: none;
  color: inherit;
}

nav ul a li {
 /* 24.7% *4 = 98.8% + 1% padding = 99.8%  */
  width: 24%;
  display: inline-block;
  padding: 1% 1% calc(1% - 5px) 1%;
  margin: 0 auto; 
  text-align: center;
  color: white; 
}



nav li::after{
  display: block;
  content: "";
  height: 5px;
  width: 0;
  border-radius: 15px;
  background-color: transparent;
  margin: 0 auto;
  transition: background-color 750ms,
              width 750ms;
}

nav li:hover::after {
  width: 50%;
  background-color: whitesmoke ;
}


/*
 ========================================== 
  Main
 ========================================== 
*/

/* * hr tags are being used as margin 
* between each .line and the top and bottom
* of the main tag. */
/* This was done so that when a list item
of the navbar is clicked, we have some padding
at the top of the page */
hr {
  visibility: hidden;
  padding-top: 60px;
}


main {
  /* Use the commented margin if you 
 remove the an hr tags which are being used
 as margin */
  /* margin: 30px 0 65px 0; */
}

h3 {
  color: var(--navy-color);
}

.line {
  display: flex;
  flex-wrap: wrap;
  width: 65%;
  /* Use the commented margin if you 
 remove the an hr tags which are being used
 as margin */
  /* margin: 0px auto 40px auto; */
  margin: 0 auto;
  border-radius: 15px;
  background-color: whitesmoke;
  color: black;
  text-align: center;
  overflow: auto;
  border: 1px solid var(--border-color);
  padding-bottom: 10px;
  /* offset-x | offset-y | blur-radius | spread-radius | color
  box-shadow: -0.25em 0.5em 1em 0 rgba(143, 143, 141, 0.2); */
}

.linetitle {
  width: 100%;
  color:  var(--navy-color);
  padding-top: 2%;
  text-transform: uppercase;
}


.boxes {
  background-color: white;
  border-radius: 15px;
  padding: 1% 2% 2% 2%;
  margin: 2%;
  float: left;
  /* box-shadow: -0.25em 0.5em 1em 0 rgba(143, 143, 141, 0.2); */
}

.boxes ul li {
  margin: 8px 20px;
  text-indent: -5px;
  text-align: left;
}

.one
{
  /* 96% because I'm using box-sizing: border-box; */
  /* 96% width + 2% margin + 2% padding = 100% */
  width: 96%; 
}

/* Use this class when you want two boxes in one line. */
.two {
  /* 46% because I'm using box-sizing: border-box; */
  /* 46% width + 2% margin + 2% padding = 50% (* 2) =100% */
  width: 46%;
}

.three
{
  /* 29.33% because I'm using box-sizing: border-box; */
  /* 29.33% width + 2% margin + 2% padding = 33.33% (* 3) = 99.99% */
  width: 29.33%;
}

.four {
  /* 21% because I'm using box-sizing: border-box; */
  /* 21% width + 2% margin + 2% padding = 25% (* 4) = 100% */
  width: 21%;
}

#resumeline {
  border-radius: 0;
  border: none;
  background-color: transparent;
  box-shadow: none;
  padding-bottom: 0;
}

#resume-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  border-radius: 15px;
  background-color: var(--navy-color);
  width: 120px;
  height: 35px;
  box-shadow: -0.25em 0.5em 1em 0 rgba(143, 143, 141, 0.2);
  margin: 10px 15px 15px 15px;
}

#resume-btn::before {
  display: block;
  visibility: hidden;
  position: absolute;
  left: 0;
  content: "";
  width: 0%;
  height: inherit;
  border-radius: 15px;
  background-color: whitesmoke;
  border: 1px solid var(--border-color);  
  transition: width 450ms, visibility 350ms;
}

#resume-btn:hover::before {
  width: inherit;
  visibility: visible;
}

#resume-btn > img {
  margin: 5px 3px;
  width: 20%;
  filter: invert();
  transition: all 0.6s ease 0s;
  z-index: 2;
}

#resume-btn > h3 {
  margin: 5px 3px;
  color: white;
}

#resume-btn:hover > img {
  filter: none;
  margin-left: 75%;
}

#resume-btn:hover > h3 {
  visibility: hidden;
}


#education {
  /* padding-top: 23px; */
}

#educationline {
}

#utdimg {
  width: 50%;
}

#collinimg {
  width: 35%;
}

#experienceline {

}

#projectsline .boxes p{
  text-align: left;  
}

#certificationsline {

}

#moreline {

}

#contactline {
  background-color:  var(--navy-color);
}

#contactline h2 {
  color: white;
}


/*
 ========================================== 
  Footer
 ========================================== 
*/

footer
{
  position: fixed;
  bottom: 1%;
  width: 100%;
  text-align: center;
  overflow-wrap: normal;
  z-index: 10;
}

footer ul {
  margin: 0 auto;
}

footer li {
  display: inline-block;
  background:  var(--navy-color);
  width: 6%;
  border-radius: 50px;
  border: 0.5px solid var(--border-color);
  margin: 0 1%;
  /* offset-x | offset-y | blur-radius | spread-radius | color */
  box-shadow: -0.125em 0.25em 1em 0 rgba(143, 143, 141, .5);
}

footer li:hover{
  background-color: whitesmoke;
  color:  var(--navy-color);
}

footer li:hover > img {
  filter: none;
}

footer li img {
  width: 50%;
  max-width: 25px;
  margin-top: 3%;
  filter: invert();
}




/*
 ========================================== 
  Media Queries
 ========================================== 
*/

@media only screen and (max-width:1200px){
  .line {
    width: 80%;
  }

}

/* The changes done to the large responsive layout 
become the default for smaller layouts.
But those changes can be overwritten to make further 
changes to any selector you want */

/* Responsive layout - when the screen is less
than 900px wide, make the columns stack on
top of each other instead of next to each other */
@media only screen and (max-width:900px){
  nav ul {
    width: 100%;
  }

  nav ul a li {
    font-size: 1em;
    padding: 2% 0.5%;
  }

  .line {
    width: 85%;
    overflow: auto;    
  }

  #utd {
    width: 40%;
  }

  #collin {
    width: 25%;
  }

  .one,
  .two,
  .three,
  .four {
    /* 96% because I'm using box-sizing: border-box; */
    /* 96% width + 2% margin + 2% padding = 100% */
    width: 96%;
  }

  footer ul li {
    width: 12%;
  }

}



/* Responsive layout - when the screen is less than 700px wide */
@media only screen and (max-width:700px){

  /* Here, the changes that me made to nav ul a li 
    in the larger layout (max-width: 1000px) are being
    overwritten.*/

  nav ul a li {
    font-size: 0.9em;
    padding: 5% 0.5%;
  }

  .line {
    width: 92%;
  }

  .three-columns#courses {
    display: block;
  }


  /* Since the larger layout made changes to nav ul, .one,
    .two, .three, .four, #utd, and #collin, the changes
    made there will be the default for the smaller layouts. */

  footer ul a li {
    width: 16%;
  }

}



/* Responsive layout - when the screen is less than 330px */
  @media only screen and (max-width:330px){
     header h1{
      font-size: 225%;
    }
  
    nav ul a li {
      font-size: 0.8em;
      width: 23%;
    }

    footer ul a li {
      width: 20%;
    }
  }