body, html {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  font-family: 'Montserrat', sans-serif;
}

#bg-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  z-index: -1;
}

#overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  color: white;
  font-size: 1.5vw;
  cursor: pointer;
  transition: opacity 1s ease;
}

#enter-text {
  padding: 10px;
  background-color: rgba(255, 255, 255, 0.1);
  border: 2px solid white;
  border-radius: 10px;
  animation: pulse 2s infinite;
  font-size: 1vw;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.content {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  color: white;
}

.profile-box {
  border-color: white;
  border: 2px solid;
  background-color: rgba(128, 128, 128, 0.9);
  padding: 10px;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: fadeInUp 1s ease forwards;
  transform: translateY(20px);
  opacity: 0;
  max-width: 60vw;
  font-size: 1.5vw;
}

@keyframes fadeInUp {
  to {
      transform: translateY(0);
      opacity: 1;
  }
}

#profile-pic {
  border-radius: 50%;
  width: 10vw;
  height: 10vw;
  margin-bottom: 10px;
  transition: transform 0.5s ease;
}

#profile-pic:hover {
  transform: scale(1.05);
}

#username {
  font-size: 2vw;
  background: linear-gradient(45deg, red, orange, yellow, green, blue, indigo, violet);
  background-size: 400%;
  -webkit-background-clip: text;
  color: transparent;
  animation: rainbow 3s linear infinite;
}

@keyframes rainbow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.link {
  text-decoration: none;
  color: white;
  font-size: 1vw;
  padding: 5px 10px;
  border: 2px solid transparent;
  border-radius: 5px;
  transition: background-color 0.3s, border-color 0.3s, transform 0.3s;
  border: 2px solid white;
  margin-bottom: 5px;
}

.link:hover {
  background-color: rgba(255, 255, 255, 0.2);
  border-color: white;
  transform: scale(1.05);
}

#volume-control {
  margin-top: 10px;
  width: 20vw;
  -webkit-appearance: none;
  background: black;
  height: 5px;
  outline: none;
}

#volume-control::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 10px;
  height: 10px;
  background: white;
  cursor: pointer;
  border-radius: 50%;
}

#volume-control::-moz-range-thumb {
  width: 10px;
  height: 10px;
  background: white;
  cursor: pointer;
  border-radius: 50%;
}

.volume-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.volume-label {
  color: white;
  margin-top: 10px;
  font-size: 1vw;
}

@media (max-width: 768px) {
  #overlay {
    font-size: 3vw;
  }

  #enter-text {
    font-size: 2.5vw;
  }

  .profile-box {
    font-size: 2.5vw;
  }

  #profile-pic {
    width: 20vw;
    height: 20vw;
  }

  #username {
    font-size: 4vw;
  }

  .link {
    font-size: 2vw;
  }

  #volume-control {
    width: 30vw;
  }
}

.music-player {
  position: fixed;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  background-color: rgba(128, 128, 128, 0.8);
  border: 2px solid white;
  border-radius: 10px;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: white;
  font-size: 1vw;
  z-index: 20;
}

.music-player button {
  background: none;
  border: none;
  color: white;
  font-size: 1.2vw;
  cursor: pointer;
  transition: transform 0.2s;
}

.music-player button:hover {
  transform: scale(1.2);
}

#song-title {
  font-size: 1vw;
  max-width: 30vw;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.music-player input[type="range"] {
  width: 10vw;
  height: 5px;
  background: black;
  outline: none;
  cursor: pointer;
}

.music-player input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 10px;
  height: 10px;
  background: white;
  border-radius: 50%;
}

.music-player input[type="range"]::-moz-range-thumb {
  width: 10px;
  height: 10px;
  background: white;
  border-radius: 50%;
}

.music-player .volume-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5vw;
  margin-left: 1vw;
}

#volume-emoji {
  font-size: 1.5vw;
  cursor: default;
  user-select: none;
}

#volume-icon:hover {
  color: #ccc;
}