/* Used https://css-tricks.com/couple-takes-sticky-footer/ for help with 
   implementing sticky footers. */
/*Used Technique #4 from https://css-tricks.com/css-image-replacement/
  for image replacement*/
/*Import Fonts*/
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Ubuntu:wght@300&display=swap');

/*Github, itch.io, and Linkedin logos were taken from https://simpleicons.org*/

* {
  margin: 0;
}

html {
  height: 100%;
}

/*General Body Styling*/
body {
  --main-background-color: #000F08;
  --normal-font-color: #F4FFF8;
  --secondary-color: #1C3738;
  --ternary-color: #1A3133;
  --link-color: #8BC7FF;
  --header-footer-item-margin: 10px;
  
  font-family: 'Ubuntu', sans-serif;
  background-color: var(--main-background-color);
  color: var(--normal-font-color);
  
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  height: 100%;
}

h2 {
  font-size: 2em;
  padding-bottom: 20px;
}

body::-webkit-scrollbar {
  width: 0.75em;
  background-color: var(--ternary-color);
}

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

.non-footer {
  flex: 1 0 auto;
}

main {
  padding: 20px 0px 20px;
}

a {
  text-decoration: none;
}

a:link {
  color: var(--link-color);
}

a:visited {
  color: var(--link-color);
}

a:hover {
  color: var(--normal-font-color);
}

a:active {
  color: var(--link-color);
}



a.social {
  /*Image from https://lineicons.com */
  background-image: url("images/website.svg");

  width: 50px;
  height: 50px;
  background-repeat: no-repeat;
  display: inline-block;
  text-indent: -99999px;
  filter: invert(100%);
}

a.social:hover {
  filter: invert(50%);
  transform: scale(1.2);
  transition: filter 0.2s;
  animation: logo-pop;
  animation-duration: 0.25s;
}

a.social[href *= "github.com"] {
  background-image: url("images/github.svg");
}

a.social[href *= "itch.io"] {
  background-image: url("images/itchdotio.svg");
}

a.social[href *= "linkedin.com"] {
  background-image: url("images/linkedin.svg");
}

a[download] {
  /*Image from https://lineicons.com */
  background-image: url("images/download.svg");

  width: 50px;
  height: 50px;
  background-repeat: no-repeat;
  display: inline-block;
  text-indent: -99999px;
  margin: 20px;
  filter: invert(100%);
}

a[download]:hover {
  filter: invert(50%);
  transform: scale(1.2);
  transition: filter 0.2s;
  animation: logo-pop;
  animation-duration: 0.25s;
}

ul.social-list {
  list-style-type: none;
  padding: 0px;
  display: flex;
  flex-direction: row;
  gap: 20px;
}

no-style {
  display: none;
}

/*Header Styling*/
header {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 1;
  display: -ms-grid;
  display: grid;
  grid-template-areas:
    "header nav"
    "popup popup";
  justify-items: start;
  align-content: start;
  background-color: var(--secondary-color);
}

header>h1 {
  margin: var(--header-footer-item-margin);
  font-family: 'Playfair Display', display;
  letter-spacing: 0.15em;
  font-size: 2em;
  font-weight: 100;
  order: 0;
  grid-area: header;
}

header>label {
  --drop-down-label-size: 50px;
  margin: var(--header-footer-item-margin);
  text-indent: -99999px;
  background-image: url(/images/tab.svg);
  width: var(--drop-down-label-size);
  height: var(--drop-down-label-size);
  grid-area: nav;
  justify-self: end;
  align-self: center;
  z-index: 2;
  transition: filter 0.2s;
}

header>label:hover {
  filter: brightness(50%);
  cursor: pointer;
}

#dropdown-trigger {
  display: none;
}

nav>ul {
  margin: var(--header-footer-item-margin);
  display: flex;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 20px;
  padding: 0px;
  list-style-type: none;
}

header a:link {
  color: var(--normal-font-color);
}
header a:visited {
  color: var(--normal-font-color);
}
header a:hover {
  color: var(--link-color);
}
header a:active {
  color: var(--normal-font-color);
}

/*Footer Styling*/
footer {
  background-color: var(--secondary-color);
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: space-between;
  font-size: 1.25em;
  flex-shrink: 0;
  gap: 20px;
  padding: 20px;
}

footer ul {
  order: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: var(--header-footer-item-margin);
  padding: 0px;
  list-style-type: none;
}

/*Media Queries*/
@media (max-width: 640px) {
  header>nav {
    grid-area: popup;
    font-size: 2.5em;
    justify-self: center;
    align-self: center;
    display: none;
  }
  
  header>nav>ul {
    flex-direction: column;
    text-align: center;
  }
  
  #dropdown-trigger:checked ~ nav{
    animation-name: change-height;
    animation-duration: 1s;
    max-height: 600px;
    display: block;
  }
  
  #dropdown-trigger:checked ~ nav>ul{
    animation-name: pop-down;
    animation-duration: 0.5s;
  }
}

@media (min-width: 640px) and (max-width: 1024px) {
  
  header>nav {
    grid-area: popup;
    font-size: 2.5em;
    justify-self: center;
    align-self: center;
    display: none;
  }
  
  header>nav>ul {
    flex-direction: row;
    text-align: center;
  }
  
  #dropdown-trigger:checked ~ nav{
    animation-name: change-height;
    animation-duration: 1s;
    max-height: 600px;
    display: block;
  }
  
  #dropdown-trigger:checked ~ nav>ul{
    animation-name: pop-down;
    animation-duration: 0.5s;
  }
}

@media (min-width: 1024px) {
  nav {
    grid-area: nav;
    justify-self: end;
    align-self: center;
  }
  
  header>nav>ul {
    font-size: 2em;
    flex-direction: row;
  }
  
  header>label {
    display: none;
  }
}

/*Keyframes*/
@keyframes change-height {
  from { 
    max-height: 0px;
  }

  to {
    max-height: 1000px;
  }
}

@keyframes pop-down {
  0% { 
    transform: translateY(-300%);
  }

  75% {
    transform: translateY(5%);
  }
  
  100% {
    transform: translateY(0%);
  }
}

@keyframes logo-pop {
  0% {
    transform: scale(1);
  }
  
  50% {
    transform: scale(1.4);
  }
  
  100% {
    transform: scale(1.2);
  }
}