:root {
  --page-bg-color: #101626;
  --page-fg-color: #fff8e7;
  --emboss-color: #000;
}

@font-face {
  font-family: 'rubikregular';
  src: url('/rubik-regular-minimal.woff2') format('woff2');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

@media (prefers-color-scheme: light) {
  :root {
    --page-bg-color: #efe9d9;
    --page-fg-color: #261b00;
    --emboss-color: #fff;
  }

  .light\:invert {
    filter: invert();
  }
}

* {
  transition: color, background-color 200ms ease;
}

html,
body {
  display: flex;
  flex-flow: column nowrap;
  justify-content: center;
  width: 960px;
  max-width: 98vw;
  margin: auto;
  background: var(--page-bg-color);
  color: var(--page-fg-color);
  font-size: 20px;
  font-family: 'rubikregular', sans-serif;
  scroll-behavior: smooth;
}

body>header {
  height: 420px;
  background: url(/header.jpg) center no-repeat;
  color: transparent;
}

a {
  color: var(--page-fg-color);
}

#intro {
  display: flex;
  flex-flow: column nowrap;
  justify-content: center;
  height: calc(100vh - 420px);
  margin: 2rem 0;
}

#content>h1 {
  font-size: 2rem;
  font-variant: small-caps;
  text-shadow: 1px 1px 0 var(--emboss-color);
}

#menu {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

#menu>a {
  padding: 2rem .5rem 0;
  display: flex;
  flex-flow: column nowrap;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  font-variant: small-caps;
  font-size: 2rem;
  text-align: center;
  background-color: rgba(128, 128, 128, .1);
  transition: background-color .3s ease;
  border-radius: 12px;
}

#menu>a:hover {
  background-color: rgba(128, 128, 128, .2);
}

#menu>a>img {
  max-width: 200px;
  opacity: .4;
  transition: opacity .3s ease;
}

#menu>a:hover>img {
  opacity: .8;
}