@charset "utf-8";

@import url(https://fonts.googleapis.com/css?family=Open+Sans);
@import url('https://fonts.googleapis.com/css2?family=Architects+Daughter');
@import url('https://fonts.googleapis.com/css2?family=Arima+Madurai&display=swap');

:root {
  --blue-bdr-1: #6866FF;
  --blue-bdr-2: #66C9FF;
  --purple-bdr-1: #71d43f;
  --purple-bdr-2: #4cffa3;
  --blue-bg-1: #eef;
  --blue-bg-2: #bcf;
  --purple-bg-1: #f8fff8;
  --purple-bg-2: #d0ffd0;
}

/* --- Fonts --- */

body {
  font-family: 'Open Sans', sans-serif;
  font-size: 16px;
}

h1, h2, h3, h4, h5 {
  font-family: 'Open Sans', sans-serif;  
}

.font-cursive {
  font-family: 'Arima Madurai', cursive;
}

.font-hand {
  font-family: 'Architects Daughter', cursive;
}

.fs-12 {
  font-size: 3em;
}

.fs-7 {
  font-size: 1.75em;
}

/* --- Spacing --- */

p {
  margin-top: 0;
}

.mb-0 {
  margin-bottom: 0;
}

.mb-3 {
  margin-bottom: 0.75rem;
}

.ml-2 {
  margin-left: 0.5rem;
}

.mt-0 {
  margin-top: 0;
}

.mt-2 {
  margin-top: 0.5rem;
}

.mt-18 {
  margin-top: 4.5rem;
}

.mx-2 {
  margin-right: 0.5rem;
  margin-left: 0.5rem;
}

.my-2 {
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

.my-3 {
  margin-top: 0.75rem;
  margin-bottom: 0.75rem;
}

.my-4 {
  margin-top: 1rem;
  margin-bottom: 1rem;
}

.p-2 {
  padding: 0.5rem;  
}

.pt-2 {
  padding-top: 0.5rem;
}

.px-2 {
  padding-right: 0.5rem;
  padding-left: 0.5rem;
}

.px-4 {
  padding-right: 1rem;
  padding-left: 1rem;
}

.py-12 {
  padding-top: 3rem;
  padding-bottom: 3rem;
}

/* --- Text --- */

.text-gray {
  color: #888;
}

.text-white {
  color: #fff;
}

.text-center {
  text-align: center;
}

@media screen and (min-width: 35.5em) {
  .text-sm-left {
    text-align: left;  
  }
}

.text-right {
  text-align: right;
}

/* --- Position --- */

.pos-abs {
  position: absolute;
}

.pos-rel {
  position: relative;
}

.pos-b-1 {
  bottom: 0.25rem;
}

.pos-l-1 {
  left: 0.25rem;
}

.pos-t-1 {
  top: 0.25rem;
}

/* --- Miscellaneous --- */

.anim-color {
  transition: color 0.5s ease;  
}

@media screen and (min-width: 80em) {
  .container-xl {
    width: 1280px;
    margin-left: auto;
    margin-right: auto;
  }
}

a.link {
  color: #a0d;
  text-decoration: none;
}

a.link-footer {
  color: white;
  display: inline-block;
  font-size: 18px;
  text-decoration: none;  
}

a.link-footer > span {
  position: relative;
  bottom: 18px;
}

a.link-shy {
  color: #111;
  text-decoration: none;
  font-style: italic;
}

a.link:hover,
a.link-footer:hover > span,
a.link-shy:hover {
  text-decoration: underline;
}

a.link:active {
  color: #70b;
}

a.link-shy:active {
  color: #008;
}

.link_icon {
  height: 16px;
  width: 16px;
  position: relative;
  bottom: -2px;
}

.project-img {
  max-width: 100%;
  max-height: 40vh;
}

.size-48 {
  width: 48px;
  height: 48px;
}

/* --- Toggle button --- */

.switch {
  display: inline-block;
  font-size: 20px;
  height: 1em;
  width: 2em;
  background: #999;
  border-radius: 1em;
  cursor: pointer;
}

.switch > input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.switch > div {
  height: 1em;
  width: 1em;
  border-radius: 1em;
  background: white;
  box-shadow: 0 0.1em 0.3em rgba(0,0,0,0.3);
  -webkit-transition: all 300ms;
     -moz-transition: all 300ms;
          transition: all 300ms;
}

.switch > input:checked + div {
  -webkit-transform: translate3d(100%, 0, 0);
     -moz-transform: translate3d(100%, 0, 0);
          transform: translate3d(100%, 0, 0);
}

/* ---- Cards --- */

.card {
  padding: 4px;  
  border-radius: 6px;
  box-shadow: 2px 2px 6px rgb(0 0 0 / 30%);
  transition: transform 0.8s, background 0.6s;
}

.card > .card_body {
  border-radius: 4px;
  transition: background-position-y 0.8s;
}

.card-blue {
  background: linear-gradient(to right, var(--blue-bdr-1), var(--blue-bdr-2));
}

.card-blue > .card_body {
  background:  linear-gradient(to top, var(--blue-bg-1) 20%, var(--blue-bg-2) 50%, var(--blue-bg-1) 80%);
  background-size: 100% 200%;
  background-position-y: 0%;
  background-repeat: no-repeat;
}

.card-purple {
  background: linear-gradient(to right, var(--purple-bdr-1), var(--purple-bdr-2));
}

.card-purple > .card_body {
  background:  linear-gradient(to top, var(--purple-bg-1) 20%, var(--purple-bg-2) 50%, var(--purple-bg-1) 80%);
  background-size: 100% 200%;
  background-position-y: 0%;
  background-repeat: no-repeat;
}

.card-active {
  animation-direction: normal;
  animation-duration: 1.5s;
  animation-iteration-count: infinite;
  animation-name: card-active-keyframes;
  animation-timing-function: linear;
  transform: scale(1.03); 
}

@keyframes card-active-keyframes {
  0% { background-position: 50% 0%; }
  100% { background-position: 0% 0%; }
}

.card-blue.card-active {
  background: linear-gradient(to right,
    var(--blue-bdr-1) 0%,  var(--blue-bdr-2) 6.25%, var(--blue-bdr-1) 12.5%, var(--blue-bdr-2) 18.75%, 
    var(--blue-bdr-1) 25%, var(--blue-bdr-2) 31.25%, var(--blue-bdr-1) 37.5%, var(--blue-bdr-2) 43.75%,
    var(--blue-bdr-1) 50%, var(--blue-bdr-2) 56.25%, var(--blue-bdr-1) 62.5%, var(--blue-bdr-2) 68.75%,
    var(--blue-bdr-1) 75%, var(--blue-bdr-2) 81.25%, var(--blue-bdr-1) 87.5%, var(--blue-bdr-2) 93.75%,
    var(--blue-bdr-1) 100%);
  background-size: 200% 100%;
}

.card-purple.card-active {
  background: linear-gradient(to right,
    var(--purple-bdr-1) 0%, var(--purple-bdr-2) 6.25%, var(--purple-bdr-1) 12.5%, var(--purple-bdr-2) 18.75%, 
    var(--purple-bdr-1) 25%, var(--purple-bdr-2) 31.25%, var(--purple-bdr-1) 37.5%, var(--purple-bdr-2) 43.75%,
    var(--purple-bdr-1) 50%, var(--purple-bdr-2) 56.25%, var(--purple-bdr-1) 62.5%, var(--purple-bdr-2) 68.75%,
    var(--purple-bdr-1) 75%, var(--purple-bdr-2) 81.25%, var(--purple-bdr-1) 87.5%, var(--purple-bdr-2) 93.75%,
    var(--purple-bdr-1) 100%);
  background-size: 200% 100%;
}

.card-active > .card_body {
  background-position-y: 100%;
}

/* ---- Others --- */

.back-leafs {
  background: #080 url('leafs.jpg') no-repeat center center; 
  background-size: cover;
}

.intro {
  height: 100vh;
  min-height: 360px;  
}