:root {
  --video-height-pc: 50vw;
}

/*
  1. Use a more-intuitive box-sizing model.
*/
*, *::before, *::after {
  box-sizing: border-box;
}

/*
  2. Remove default margin
*/
* {
  margin: 0;
}

/*
  Typographic tweaks!
  3. Add accessible line-height
  4. Improve text rendering
*/
body {
  background-color: black;
  background-image: url(/karaonfest/img/bg.jpg);
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  width: 100vw;
  height: 100vh;
  font-family: sans-serif;
}

header {
  margin-top: 10px;
  padding-top: 80px;
  text-align: center;
  color: white;
  position: relative;
}
header .header-translate {
  position: absolute;
  top: 0px;
  right: 15px;
  text-decoration: none;
  color: black;
  background-color: transparent;
  border-radius: 10px;
  padding: 5px 10px;
  display: block;
  font-size: 1rem;
}
header .header-translate .skiptranslate {
  display: flex;
  flex-direction: column;
}
header .logo-karaon {
  position: absolute;
  top: 0px;
  left: 10px;
  width: 100px;
  filter: drop-shadow(3px 3px 10px black);
}
@media screen and (min-width: 768px) {
  header .logo-karaon {
    width: 200px;
  }
}
header p {
  margin: 10px auto 10px auto;
}
header .logo {
  width: 60%;
  max-width: 400px;
  display: block;
  margin: 0 auto 0 auto;
}
header .title {
  width: 80%;
  max-width: 520px;
  display: block;
  margin: 30px auto 30px auto;
  filter: drop-shadow(0 0 0.75rem rgb(0, 0, 0));
}
header h1 > span {
  filter: drop-shadow(0 0 0.75rem rgb(0, 0, 0));
  font-weight: bold;
  color: yellow;
  font-family: "Press Start 2P", serif;
}
header .date {
  font-size: 3rem;
  font-weight: 900;
  line-height: 1.1;
  margin-top: 20px;
  filter: drop-shadow(0 0 0.75rem rgb(0, 0, 0));
}
header .location {
  font-size: 1.5rem;
  font-weight: bold;
  filter: drop-shadow(0 0 0.75rem rgb(0, 0, 0));
}

main {
  text-align: center;
  color: white;
  background-color: rgba(0, 0, 0, 0.5333333333);
  margin: 2em auto 0 auto;
  font-size: 1.1rem;
  padding: 25px;
  text-align: left;
  max-width: 800px;
  border-radius: 50px;
}
main a {
  color: white;
}
main p {
  margin: 1em 0 1em 0;
}
main h3 {
  margin: 1.5em 0 0.7em 0;
  font-size: 2rem;
  color: pink;
}
main ul {
  margin: 20px 0 30px 0;
  padding: 0 0 0 20px;
}
main .detail {
  font-size: 1.2rem;
  font-weight: bold;
  text-align: center;
  border-radius: 20px;
  background-color: rgba(217, 94, 172, 0.5333333333);
  margin: 40px auto 40px auto;
  filter: drop-shadow(0 0 0.75rem rgb(255, 100, 50));
  padding: 20px;
  max-width: 500px;
}

.youtube {
  max-width: 600px;
  margin: 10px auto;
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
}
.youtube iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

footer {
  color: white;
  padding: 10px;
  font-size: 0.8rem;
  background-color: rgba(0, 0, 0, 0.8);
}