.triangle.triangle-up {
  border-left: 200px solid transparent;
  border-right: 200px solid transparent;
  border-bottom: 400px solid #32557f;
}
.triangle.triangle-down {
  border-left: 200px solid transparent;
  border-right: 200px solid transparent;
  border-top: 400px solid #32557f;
}
.triangle {
  width: 0;
  height: 0;
  display: inline-block;
}
:root {
  --primary-color: 111, 76, 255;
  --text-color: 256, 256, 256;
  --gradient-color-light: #ff4079;
  --gradient-color-dark: steelblue; 
  --text-gray: darkslategray; 
}
.btn-primary {
  background-color: rgb(var(--primary-color));
  border: 1px solid rgb(var(--primary-color));
  color: rgb(var(--text-color));
}
/* https://thegraph.com/en/ */
.btn-semi-transparent {
  background-color: rgba(var(--primary-color), 0.15);
  border: 1px solid rgba(var(--primary-color), 0.25);
  color: rgba(var(--text-color), 0.8);
}
.btn-semi-transparent:hover {
  background-color: rgba(var(--primary-color), 0.35);
  border: 1px solid rgba(var(--primary-color), 0.5);
  color: rgba(var(--text-color), 0.9);
}
.btn-glow:hover {
  box-shadow: rgba(var(--primary-color), 0.5) 0px 0px 20px 0px;
}
.btn-outline-primary:hover {
  background-image: linear-gradient(to right, var(--gradient-color-dark), var(--gradient-color-light));
  border: 2px solid transparent !important;
  color: rgba(var(--text-color));
}
/* https://sushi.com/ */
.btn-gradient-border {
  color: rgba(var(--text-color));
  border: 2px double transparent;
  background-image: linear-gradient(rgb(13, 14, 33), rgb(13, 14, 33)), radial-gradient(circle at left top, var(--gradient-color-dark), var(--gradient-color-light));
  background-origin: border-box;
  background-clip: padding-box, border-box;
  -webkit-background-clip: padding-box, border-box;
  -webkit-background-origin: border-box;
}
.bg-dark {
  background-color: rgba(0,0,0,0.6) !important;
}
.curd {
  margin: 1rem;
  padding: 1rem; 
  width: 100%;
  text-align: center;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  border-radius: 10px;
} 
.bg-blur {
  overflow: hidden;
  background-color: transparent;
}
.bg-blur::before {
  content: '';
  background-size: cover;
  height: 100%;
  width: 100%;
  background-position: center;
  position: absolute;
  z-index: -1;
  opacity: .25;
}
#add_and_cover::before {
  background-image: url(https://static.bigideasmath.com/protected/content/canvas/games/k/add_and_cover/images/title.png);
}
#hundred_chart::before {
  background-image: url(https://static.bigideasmath.com/protected/content/canvas/games/k/hundred_chart_puzzle/images/title.png);
}
#losing_teeth::before {
  background-image: url(https://static.bigideasmath.com/protected/content/canvas/games/k/losing_teeth/images/title.png);
}
#race_for_100::before {
  background-image: url(https://static.bigideasmath.com/protected/content/canvas/games/1/race_for_100/images/logo/title-logo.png);
}
#race_to_0::before {
  background-image: url(images/race_to_zero_logo@1x.png);
}
#shape_flip_and_find::before {
  background-image: url(https://static.bigideasmath.com/protected/content/canvas/games/k/shape_flip_and_find/images/title.png);
}
#number_bond_spin_and_cover::before {
  background-image: url(https://static.bigideasmath.com/protected/content/canvas/games/k/number_bond_spin_and_cover/images/title.png);
}
#joey_jump::before {
  background-image: url(https://static.bigideasmath.com/protected/content/canvas/games/2/joey_jump/images/title-graphic/Title.png);
}
#roll_and_cover::before {
  background-image: url(https://static.bigideasmath.com/protected/content/canvas/games/1/roll_and_cover/images/header-logo/header-logo-1@0.5x.png);
}
#spin_and_graph::before {
  background-image: url(https://static.bigideasmath.com/protected/content/canvas/games/2/spin_and_graph/images/title.png);
}
#round_to_find_a_pearl::before {
  background-image: url(https://static.bigideasmath.com/protected/content/canvas/games/3/chapter_7/round_to_find_a_pearl/images/title.png);
}
#pyramid_slide_and_climb::before {
  background-image: url(https://static.bigideasmath.com/protected/content/canvas/games/4/chapter_14/pyramid_slide_and_climb/images/title.png);
}
#race_around_the_world_multiplication::before {
  background-image: url(https://static.bigideasmath.com/protected/content/canvas/games/5/chapter_5/race_around_the_world_multiplication/images/title.png);
}
#race_around_the_world_division::before {
  background-image: url(https://static.bigideasmath.com/protected/content/canvas/games/5/chapter_7/race_around_the_world_division/images/title.png);
}
#drop_and_build::before {
  background-image: url(https://static.bigideasmath.com/protected/content/canvas/games/1/drop_and_build/images/start-screen/title-vertical.png);
}
#numberland::before {
  background-image: url(https://static.bigideasmath.com/protected/content/canvas/games/1/number_land/images/title/numberland-title.png);
}
.bg-blur::before {
  filter: blur(30px);
}
.p-interactives {
  margin-top: 30px;
  font-size: 18px;
  font-weight: 400;
  /* make it look like bs list items */
  background-color:white;
  padding: .5rem 1rem;
  border: 1px solid rgba(0,0,0,.125);
}
/* Jost */
@font-face {
  font-family: Jost;
  src: url(vendor/fonts/Jost/OpenType/Jost-200-Thin.otf);
  font-weight: 200;
}
@font-face {
  font-family: Jost;
  src: url(vendor/fonts/Jost/OpenType/Jost-200-ThinItalic.otf);
  font-weight: 200;
  font-style: italic;
}
@font-face {
  font-family: Jost;
  src: url(vendor/fonts/Jost/OpenType/Jost-300-Light.otf);
  font-weight: 300;
}
@font-face {
  font-family: Jost;
  src: url(vendor/fonts/Jost/OpenType/Jost-300-LightItalic.otf);
  font-weight: 300;
  font-style: italic;
}
@font-face {
  font-family: Jost;
  src: url(vendor/fonts/Jost/OpenType/Jost-400-Book.otf);
}
@font-face {
  font-family: Jost;
  src: url(vendor/fonts/Jost/OpenType/Jost-400-BookItalic.otf);
  font-style: italic;
}
@font-face {
  font-family: Jost;
  src: url(vendor/fonts/Jost/OpenType/Jost-500-Medium.otf);
  font-weight: 500;
}
@font-face {
  font-family: Jost;
  src: url(vendor/fonts/Jost/OpenType/Jost-500-MediumItalic.otf);
  font-style: italic;
  font-weight: 500;
}
@font-face {
  font-family: Jost;
  src: url(vendor/fonts/Jost/OpenType/Jost-800-Hevy.otf);
  font-weight: bold;
}
@font-face {
  font-family: Jost;
  src: url(vendor/fonts/Jost/OpenType/Jost-800-HevyItalic.otf);
  font-weight: bold;
  font-style: italic;
}
body {
  color: var(--text-gray);
  background-color: #fbfbfb;
}
body h1, body h2, body h3, body p {
  color: var(--text-gray);
}
body h1, body h2, body h3, body p, body a {
  font-family: Jost;
}
body p {
  font-size: 1.2em;
  margin-top: 1em;
}
body h1 {
  font-size: 4em;
  font-weight: 200;
}
#hello_world {
  margin-top:1.5em;
}
strong, .top-nav .nav-link.active {
  background-image: linear-gradient(60deg, var(--gradient-color-dark), var(--gradient-color-light));
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent !important;
}
.nav-pills {
  background-color: rgba(255,255,255,0.555);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}
.nav-pills .nav-link.active {
  box-shadow: 2px 2px 8px rgba(0,0,0,0.35);
}
.top-nav .nav-link {
  width: 175px;
  transition-timing-function: ease-in-out;
  transition: box-shadow 0s, transform 1s;
  text-align: center;
  margin-top: 15px;
  margin-right: 10px;
  margin-left: 10px;
  font-size: 1.25em;
}
@media screen and (max-width: 768px) {
  .top-nav .nav-link {
    width: auto;
    font-size: 1.15em;
  }
}
.top-nav .nav-link.active {
  transform: scale(1.444);
  text-shadow: none;
  margin-right:45px;
  margin-left:45px;
}
#v-pills-geometry .list-group-item,
#v-pills-algebra1 .list-group-item,
#v-pills-algebra2 .list-group-item {
  padding-right: 25px;
}
#v-pills-geometry .list-group-item i,
#v-pills-algebra1 .list-group-item i,
#v-pills-algebra2 .list-group-item i {
  position:relative;
  left: 10px;
}
.gradient-back, .nav-pills .nav-link.active {
  background-image: linear-gradient(60deg, var(--gradient-color-dark), var(--gradient-color-light));
  color: white !important;
}
.nav-pills .nav-link {
  font-family: 'Jost';
  color: #333;
}
a {
  color: #333 !important;
}
a:hover {
  color: var(--gradient-color-light) !important;
}  
.top-nav a:hover,
ul.list-group a:hover {
  text-shadow: 0 0 60px var(--gradient-color-light);
}
hr {
  background-image: linear-gradient(60deg,var(--gradient-color-light) , var(--gradient-color-dark));
  height: 2px !important;
  opacity: 1 !important;
}
.surfer {
  display: inline-block;
}
.slanted {
  display: block;
  transform: rotate(2deg);
  margin-bottom: 50px;
}
.back-slanted {
  display: block;
  transform: rotate(-2deg);
  margin-bottom: 50px;
}
.personal-cat-photo {
  width: 100%;
}
.padded {
  padding: 5px;
  font-size: larger;
}
.rotate-90 {
  display:inline-block !important;
  transform: rotate(90deg);
}
.text-center {
  text-align: center;
}
.nav-link {
  border: 1px solid var(--gradient-color-dark);
  margin: 5px;
  border-radius: 0 10px;
}
.nav-link:hover, .nav-link.active {
  border-color: var(--gradient-color-light);
}
.nav-link.active {
  border-width: 2px;
}
.card-body h3 {
  margin-top: 25px;
}
.card-header {
  padding-top: 16px;
}
.card-img-top {
  border-radius:0 !important;
}
.btn-outline-primary {
  border-width: 2px !important;
  font-family: 'Jost';
  font-weight: 500;
}
.badge {
  font-weight: 500;
  font-family: 'Jost';
}
.tab-content {
  position:relative;
}
blink.blinking {
  -webkit-animation: 2s linear infinite condemned_blink_effect; /* for Safari 4.0 - 8.0 */
  animation: 2s linear infinite condemned_blink_effect;
}
/* for Safari 4.0 - 8.0 */
@-webkit-keyframes condemned_blink_effect {
  0% {
    visibility: hidden;
  }
  50% {
    visibility: hidden;
  }
  100% {
    visibility: visible;
  }
}
@keyframes condemned_blink_effect {
  0% {
    visibility: hidden;
  }
  50% {
    visibility: hidden;
  }
  100% {
    visibility: visible;
  }
}