add-ons.css

body {
  background: linear-gradient(-225deg, #ff057c 0%, #7c64d5 48%, #4cc3ff 100%);
  font-family: "Shadows Into Light", cursive;
}

h1,
h2,
h3 {
  text-align: center;
}

h1 {
  font-weight: 900px;
  text-shadow: 2px 2px rgb(253, 123, 207);
}

h2,
h3 {
  font-weight: 500;
}

h2 {
  text-shadow: 0.5px 0.5px violet;
}

a {
  color: blueviolet;
  text-decoration: none;
}

img {
  max-width: 100%;
  border-radius: 30px;
  width: 350px;
  margin: 0 auto;
  display: block;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.5), 0 6px 20px 0 rgba(0, 0, 0, 0.2);
}

.img-1 {
  transition: all 150ms ease-in-out;
  width: 50%;
  margin-bottom: 30px;
  aspect-ratio: 1 / 1;
}

.img-1:hover {
  filter: contrast(50%);
  transform: scale(1.2);
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  grid-gap: 15px;
}

.grid img {
  width: 250px;
  transition: all 150ms ease-in-out;
  margin-bottom: 20px;
}

.grid img:hover {
  transform: scale(1.2);
}
.grid .img-1 {
  grid-gap: 20px;
}

p {
  margin-bottom: 35px;
  text-align: justify;
}

.container {
  max-width: 600px;
  margin: 20px auto;
  background: linear-gradient(to top, #cd9cf2 0%, #f6f3ff 100%);
  padding: 20px;
  border-radius: 30px;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.5), 0 6px 20px 0 rgba(0, 0, 0, 0.2);
}

button {
  font-family: "Shadows Into Light", cursive;
  display: block;
  margin: 0 auto;
  background-color: pink;
  border: none;
  padding: 5px 10px;
  border-radius: 10px;
  font-weight: bold;
  color: purple;
  transition: all 180ms ease-in-out;
  cursor: pointer;
}

button:hover {
  background-color: rgb(253, 123, 207);
}

.theme-btn {
  background-color: rgb(103, 34, 168);
  color: rgba(245, 245, 245, 0.74);
}

.theme-btn:hover {
  background-color: rgb(159, 75, 238);
  color: black;
}

.JPN {
  color: purple;
  font-weight: bolder;
}

.dark {
  background: radial-gradient(
    circle at 24.1% 68.8%,
    rgb(50, 50, 50) 0%,
    rgb(0, 0, 0) 99.4%
  );
  font-family: "Shadows Into Light", cursive;
}

.dark .container {
  background: radial-gradient(
    circle at 52.1% -29.6%,
    rgb(144, 17, 105) 0%,
    rgb(51, 0, 131) 100.2%
  );
  color: rgba(245, 245, 245, 0.509);
}

footer {
  text-align: center;
  margin: 35px 0;
}