body {
  margin: 0;
  height: 100vh;
  background: radial-gradient(circle at center, #111 0%, #000 80%);
  color: #fff;
  font-family: sans-serif;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.logo-text {
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 1000;
  font-size: 1.2em;
  font-weight: bold;
  color: #fff;
  text-decoration: none;
  opacity: 0.6;
  text-shadow: 0 0 10px rgba(0,0,0,0.5);
  transition: 0.3s ease;
}
.logo-text:hover {
  opacity: 1;
  text-shadow: 0 0 20px rgba(255,255,255,0.9);
}

.container {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

h1 {
  font-size: 2em;
  letter-spacing: 0.2em;
  text-shadow: 0 0 10px rgba(0,0,0,0.5);
  margin: 0;
  opacity: 0.6;
  transition: 0.3s ease;
  cursor: default;
}
h1:hover {
  opacity: 1;
  text-shadow: 0 0 20px rgba(255, 255, 255, 0.9);
}

.player-wrap {
  display: inline-block;
  position: relative;
  border: 4px solid #222;
  border-radius: 4px;
  box-shadow:
    0 0 40px rgba(255, 200, 150, 0.3),
    0 0 80px rgba(255, 200, 150, 0.2);
  animation: flicker 3s infinite ease-in-out;
}

iframe {
  display: block;
  width: 640px;
  height: 360px;
  border-radius: 2px;
}

.tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 12px;
}

.tab {
  flex: 1;
  text-align: center;
  padding: 6px 0;
  cursor: pointer;
  opacity: 0.6;
  border-bottom: 2px solid transparent;
  transition: 0.2s;
}
.tab.active {
  opacity: 1;
  border-color: #fff;
}

@keyframes flicker {
  0%, 100% {
    box-shadow:
      0 0 40px rgba(255,200,150,0.3),
      0 0 80px rgba(255,200,150,0.2);
  }
  50% {
    box-shadow:
      0 0 50px rgba(255,220,180,0.35),
      0 0 90px rgba(255,220,180,0.25);
  }
}

.copyright {
  position: fixed;
  bottom: 20px;
  right: 20px;
  font-size: 12px;
  opacity: 0.5;
  z-index: 1000;
}