@font-face {
  font-family: "DarumadropOne";
  src: url("font/DFVN-DarumadropOne.otf") format("opentype");
  font-weight: normal;
  font-style: normal;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background: linear-gradient(120deg, #ffe6f7 0%, #fffbe6 100%);
  overflow: hidden;
  position: relative;
  font-family: "DarumadropOne";
}

img,
#lyrictext,
#lyrictext2,
#lyrictext3,
#restartBtn,
.hi-gif,
.text-hoi,
.text-qua {
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}

#skystar {
  position: relative;
  z-index: 1;
  transition: opacity 2s;
}

.intro {
  position: fixed;
  z-index: 1;
  top: 0;
  left: 0;
  width: 100dvw;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background-color: transparent;
}

.hi-gif {
  aspect-ratio: 1/1;
  object-fit: contain;
  width: 300px;
}

.text-hoi {
  margin-bottom: 20px;
  text-align: center;
  font-size: 60px;
  color: #ffe6f7;
}

.text-qua {
  margin-bottom: 20px;
  text-align: center;
  font-size: 40px;
  color: #ffe6f7;
}

#lyrictext {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -70%);
  z-index: 20;
  font-size: 7rem;
  color: #ff69b4;
  font-weight: bold;
  text-shadow: 2px 2px 8px #fff, 0 0 10px #ffb6c1;
  text-align: center;
  pointer-events: none;
  opacity: 0;
  z-index: 3;
  font-family: "DarumadropOne";
  transition: opacity 0.7s;
}

#lyrictext2 {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 130px;
  z-index: 20;
  font-size: 5rem;
  color: #ff69b4;
  font-weight: bold;
  text-shadow: 2px 2px 8px #fff, 0 0 10px #ffb6c1;
  text-align: center;
  pointer-events: none;
  opacity: 0;
  z-index: 3;
  font-family: "DarumadropOne";
  transition: opacity 0.7s;
}

#lyrictext3 {
  position: fixed;
  top: 40px;
  right: 40px;
  text-align: end;
  z-index: 20;
  font-size: 24px;
  line-height: 1.5;
  color: #ff69b4;
  font-weight: bold;
  text-shadow: 2px 2px 8px #fff, 0 0 10px #ffb6c1;
  pointer-events: none;
  opacity: 0;
  z-index: 3;
  font-family: "DarumadropOne";
  transition: opacity 0.7s;
}

#matrixRain {
  position: fixed;
  top: 0;
  left: 0;
  width: 100dvw;
  height: 100dvh;
  z-index: 2;
  pointer-events: none;
}

#cake-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100dvw;
  height: 100dvh;
  pointer-events: none;
  z-index: 2;
}

.falling-cake {
  position: absolute;
  top: 0;
  will-change: transform;
  user-select: none;
  pointer-events: none;
  transition: opacity 0.3s;
}

#restartBtn {
  position: fixed;
  bottom: 10px;
  right: 10px;
  width: 40px;
  height: 40px;
  z-index: 10;
  background-color: transparent;
  border: 1px solid #ff69b4;
  font-family: "DarumadropOne";
  color: #ff69b4;
  border-radius: 99999px;
  display: flex;
  justify-items: center;
  align-items: center;
  box-shadow: 2px 2px 8px #fff, 0 0 10px #ffb6c1;
  opacity: 0;
  pointer-events: none;
  transition: opacity 1s;
}

#play-music {
  font-size: 20px;
  padding: 10px 20px;
  z-index: 10;
  background-color: transparent;
  border: 1px solid #ff69b4;
  font-family: "DarumadropOne";
  color: #ffe6f7;
  border-radius: 99999px;
  display: flex;
  justify-items: center;
  align-items: center;
  cursor: pointer;
  box-shadow: 2px 2px 8px #fff, 0 0 10px #ffb6c1;
  transition: box-shadow 0.7s ease, background-color 0.7s ease;
}

#play-music:hover {
  background-color: #ff69b41f;
  backdrop-filter: blur(10px);
  box-shadow: 2px 2px 8px #fff, 0 0 30px #ffb6c1;
}