@font-face
{
  font-family: 'High Summit';
  src: url('/font/HighSummit.woff2') format('woff2');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

*, *:before, *:after
{
  box-sizing: inherit;
}

html
{
  box-sizing: border-box;
}

html, body
{
  width: 100%;
  height: 100%;
}

body
{
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0;
  background-color: #000;
}

h1
{
  margin: 0;
  text-align: center;
  font-family: 'High Summit';
  text-shadow: 0 0 6px rgba(255, 255, 255, 0.6);
  font-size: 2.4em;
  font-weight: 400;
  color: #fff;
  cursor: default;
}

footer
{
  display: flex;
  justify-content: center;
  align-items: flex-end;
  position: fixed;
  bottom: 16px;
  left: 0;
  width: 100%;
  height: 64px;
  color: #fff;
}

footer a
{
  position: relative;
  display: flex;
  align-items: center;
  height: 32px;
  text-decoration: none;
  color: #ccc;
  opacity: 0.4;
  transition: 0.2s ease-out opacity;
}

footer a:hover
{
  opacity: 1;
}

footer .twitter
{
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", sans-serif;
}

footer .twitter::before
{
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 32px;
  height: 32px;
  transform: translateX(-32px);
  background-image: url('/image/twitter/twitter-logo-white.svg');
}

footer a img
{
  height: 100%;
}

footer a span
{
  margin-bottom: 1px;
}