body {
  background-color: rgba(0, 0, 0, 0.5);
}

nav {
  background: linear-gradient(-45deg, #451515, #de4646, #ef482a, #ff0000);
  background-size: 400% 400%;
  animation: gradient 15s ease infinite;
}

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

.container-fluid a {
  color: rgb(255, 241, 241);
}

h1 {
  margin: 10px;
  color: black;
  text-align: center;
  text-decoration: underline;
}

.container-menu {
  display: flex;
  border: solid black 1px;
  margin: 10px;
}

.container-cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
  background: linear-gradient(rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.1));
}

.filters {
  background: linear-gradient(rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.1));
  padding: 10px 30px;
  color: white;
  border-right: black solid 2px;
}

.filters ul li {
  list-style: none;
  cursor: pointer;
  margin: 5px 0px;
  padding: 0px;
}

input {
  border-radius: 15px;
  text-align: center;
}

.card {
  border: 1px black solid;
  margin: 10px;
  width: 350px;
  transition: all 0.3s ease-in-out;
}

.container-cards:hover .card {
  filter: brightness(0.5) blur(1px);
  transition: all 0.3s ease;
}

.container-cards .card:hover {
  filter: brightness(1) blur(0);
  transform: scale(1.05);
}

.card img {
  height: 200px;
  width: auto;
}

.card a {
  text-decoration: none;
  background-color: rgb(255, 254, 254);
  color: black;
  border: 1px black solid;

  border-radius: 10px;
  padding: 3px 4px;
}

.card a:hover {
  color: white;
  background-color: black;
}

li {
  transition: all 0.3s ease-in-out;
}

li:hover {
  transform: scale(1.1);
}

.categoria {
  color: green;
}

.loader {
  position: relative;
  margin: auto;
  width: 164px;
  height: 164px;
  border-radius: 50%;
  animation: rotate 0.75s linear infinite;
}
.loader::before {
  content: "";
  position: absolute;
  width: 20px;
  height: 40px;
  border: 1px solid #ff3d00;
  border-width: 12px 2px 7px;
  border-radius: 2px 2px 1px 1px;
  box-sizing: border-box;
  transform: rotate(45deg) translate(24px, -10px);
  background-image: linear-gradient(#ff3d00 20px, transparent 0),
    linear-gradient(#ff3d00 30px, transparent 0),
    linear-gradient(#ff3d00 30px, transparent 0);
  background-size: 10px 12px, 1px 30px, 1px 30px;
  background-repeat: no-repeat;
  background-position: center, 12px 0px, 3px 0px;
}
.loader::after {
  content: "";
  position: absolute;
  height: 4px;
  width: 4px;
  left: 20px;
  top: 47px;
  border-radius: 50%;
  color: #fff;
  box-shadow: -4px 7px 2px, -7px 16px 3px 1px, -11px 24px 4px 1px,
    -6px 24px 4px 1px, -14px 35px 6px 2px, -5px 36px 8px 2px, -5px 45px 8px 2px,
    -14px 49px 8px 2px, 6px 60px 11px 1px, -11px 66px 11px 1px, 11px 75px 13px,
    -1px 82px 15px;
}

@keyframes rotate {
  to {
    transform: rotate(360deg);
  }
}