index.css

:root {
  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;
  color-scheme: light dark;

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
}
span.page-link {
  background: #213547;
}

a {
  font-weight: 500;
  color: #646cff;
  text-decoration: inherit;
}
a:hover {
  color: #535bf2;
}
h1 {
  font-size: 3.2em;
  line-height: 1.1;
}

button:hover {
  border-color: #646cff;
}
button:focus,
button:focus-visible {
  outline: 4px auto -webkit-focus-ring-color;
}

@media (prefers-color-scheme: light) {
  :root {
    color: #213547;
    background-color: #ffffff;
  }
  a:hover {
    color: #747bff;
  }
  button {
    background-color: #f9f9f9;
  }
}
.page-link.active,
.active > .page-link {
  background: #e6b70e;
}

.image-shadow-light {
  width: 215px;
  height: 28px;
  background: radial-gradient(50% 50% at 50% 50%, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0) 100%);
  opacity: 0.7;
}
.image-shadow-dark {
  width: 215px;
  height: 28px;
  background: radial-gradient(50% 50% at 50% 50%, rgba(255, 255, 255, 0.5) 0%, rgba(255, 255, 255, 0) 100%);
  opacity: 0.7;
}