@property --rotate {
  syntax: "<angle>";
  initial-value: 132deg;
  inherits: false;
}

:root {
  --card-height: 35vh;
  --card-width: calc(var(--card-height) / 1.5);
}


body {
  min-height: 100vh;
  background-image: url(images/fondo_negro_verde.png);
  background-size:cover;
  background-repeat: repeat;
  display: flex;
  align-items: center;
  flex-direction: column;
  padding-top: 2rem;
  padding-bottom: 2rem;
  box-sizing: border-box;
}


.card {
  background-image: url(images/fondo_cards.png);
  width: var(--card-width);
  height: var(--card-height);
  padding: 0px;
  margin-left: -1017px;
  margin-top: 15%;
  position: relative;
  border-radius: 6px;
  justify-content:center;
  align-items:top;
  text-align: center;
  display: flex;
  font-size: 1.5em;
  color: rgb(88 199 250 / 0%);
  cursor: pointer;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  font-size: medium;
}

.card:hover {
  background-image: url(images/card2.png);
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  /*color: #ffff00;*/
  transition: color 1s;
}
.card:hover:before, .card:hover:after {
  animation: none;
  opacity: 0;
}

.card::before {
  content: "";
  width: 104%;
  height: 102%;
  border-radius: 8px;
  background-image: linear-gradient(
    var(--rotate)
    , #5ddcff, #3c67e3 43%, #4e00c2);
    position: absolute;
    z-index: -1;
    top: -1%;
    left: -2%;
    animation: spin 2.5s linear infinite;
}

.card::after {
  position: absolute;
  content: "";
  top: calc(var(--card-height) / 6);
  left: 0;
  right: 0;
  z-index: -1;
  height: 100%;
  width: 100%;
  margin: 0 auto;
  transform: scale(0.8);
  filter: blur(calc(var(--card-height) / 6));
  background-image: linear-gradient(
    var(--rotate)
    , #5ddcff, #3c67e3 43%, #4e00c2);
    opacity: 1;
  transition: opacity .5s;
  animation: spin 2.5s linear infinite;
}


/* 2a tarjeta*/


.card1 {
  background-image: url(images/fondo_vcard1.jpg);
  width: var(--card-width);
  height: var(--card-height);
  padding: 0px;
  margin-left: -342px;
  margin-top: -17.6%;
  position: relative;
  border-radius: 6px;
  justify-content:center;
  align-items:top;
  text-align: center;
  display: flex;
  font-size: 1.5em;
  color: rgb(88 199 250 / 0%);
  cursor: pointer;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  font-size: medium;
}

.card1:hover {
  background-image: url(images/card1b.png);
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  /*color: #ffff00;*/
  transition: color 1s;
}
.card1:hover:before, .card:hover:after {
  animation: none;
  opacity: 0;
}

.card1::before {
  content: "";
  width: 104%;
  height: 102%;
  border-radius: 8px;
  background-image: linear-gradient(
    var(--rotate)
    , #5ddcff, #3c67e3 43%, #4e00c2);
    position: absolute;
    z-index: -1;
    top: -1%;
    left: -2%;
    animation: spin 2.5s linear infinite;
}

.card1::after {
  position: absolute;
  content: "";
  top: calc(var(--card-height) / 6);
  left: 0;
  right: 0;
  z-index: -1;
  height: 100%;
  width: 100%;
  margin: 0 auto;
  transform: scale(0.8);
  filter: blur(calc(var(--card-height) / 6));
  background-image: linear-gradient(
    var(--rotate)
    , #5ddcff, #3c67e3 43%, #4e00c2);
    opacity: 1;
  transition: opacity .5s;
  animation: spin 2.5s linear infinite;
}



/* 3a tarjeta*/


.card2 {
  background-image: url(images/fondo_vcard3.jpg) ;
  width: var(--card-width);
  height: var(--card-height);
  padding: 0px;
  margin-left: 337px;
  margin-top: -17.6%;
  position: relative;
  border-radius: 6px;
  justify-content:center;
  align-items:top;
  text-align: center;
  display: flex;
  font-size: 1.5em;
  color: rgb(88 199 250 / 0%);
  cursor: pointer;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  font-size: medium;
}

.card2:hover {
  background-image: url(images/card3.png);
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  /*color: #ffff00;*/
  transition: color 1s;
}
.card2:hover:before, .card:hover:after {
  animation: none;
  opacity: 0;
}

.card2::before {
  content: "";
  width: 104%;
  height: 102%;
  border-radius: 8px;
  background-image: linear-gradient(
    var(--rotate)
    , #5ddcff, #3c67e3 43%, #4e00c2);
    position: absolute;
    z-index: -1;
    top: -1%;
    left: -2%;
    animation: spin 2.5s linear infinite;
}

.card2::after {
  position: absolute;
  content: "";
  top: calc(var(--card-height) / 6);
  left: 0;
  right: 0;
  z-index: -1;
  height: 100%;
  width: 100%;
  margin: 0 auto;
  transform: scale(0.8);
  filter: blur(calc(var(--card-height) / 6));
  background-image: linear-gradient(
    var(--rotate)
    , #5ddcff, #3c67e3 43%, #4e00c2);
    opacity: 1;
  transition: opacity .5s;
  animation: spin 2.5s linear infinite;
}


/* 4a tarjeta*/


.card3 {
  background-image: url(images/card_home.png);
  background-size: cover;
  width: var(--card-width);
  height: var(--card-height);
  padding: 0px;
  margin-left: 1020px;
  margin-top: -17.6%;
  position: relative;
  border-radius: 6px;
  justify-content:center;
  align-items:top;
  text-align: center;
  display: flex;
  font-size: 1.5em;
  color: rgb(88 199 250 / 0%);
  cursor: pointer;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  font-size: medium;
}

.card3:hover {
  background-image: url(images/home_ok.png);
  background-size: 100%;
  background-repeat: no-repeat;
  background-position: center;
  color: #ffff00;
  transition: color 1s;
}
.card3:hover:before, .card:hover:after {
  animation: none;
  opacity: 0;
}

.card3::before {
  content: "";
  width: 104%;
  height: 102%;
  border-radius: 8px;
  background-image: linear-gradient(
    var(--rotate)
    , #5ddcff, #3c67e3 43%, #4e00c2);
    position: absolute;
    z-index: -1;
    top: -1%;
    left: -2%;
    animation: spin 2.5s linear infinite;
}

.card3::after {
  position: absolute;
  content: "";
  top: calc(var(--card-height) / 6);
  left: 0;
  right: 0;
  z-index: -1;
  height: 100%;
  width: 100%;
  margin: 0 auto;
  transform: scale(0.8);
  filter: blur(calc(var(--card-height) / 6));
  background-image: linear-gradient(
    var(--rotate)
    , #5ddcff, #3c67e3 43%, #4e00c2);
    opacity: 1;
  transition: opacity .5s;
  animation: spin 2.5s linear infinite;
}


@keyframes spin {
  0% {
    --rotate: 0deg;
  }
  100% {
    --rotate: 360deg;
  }
}

a {
  color: #ffff00;
  text-decoration: none;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  font-weight: ;
  margin-top: 2re