* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Orbitron', sans-serif;
}

body {
  background: #000;
  color: #ffcccc;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  overflow: hidden;
  position: relative;
}

#overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #000;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  cursor: pointer;
  transition: opacity 1s ease;
}

#overlay.fade-out {
  opacity: 0;
  pointer-events: none;
}

#welcome-message {
  font-size: 3.5em;
  color: #ff2b2b;
  text-shadow: 0 0 25px #ff0000, 0 0 80px #ff1a1a, 0 0 150px #ff0000;
  animation: introGlow 1.6s infinite alternate;
}

@keyframes introGlow {
  from { transform: scale(0.95); opacity: 0.6; text-shadow: 0 0 20px #ff0000; }
  to { transform: scale(1.06); opacity: 1; text-shadow: 0 0 60px #ff1a1a, 0 0 140px #ff0000; }
}

.content {
  display: flex;
  flex-direction: column;
  width: 100%;
  align-items: center;
  justify-content: center;
  visibility: hidden;
  opacity: 0;
  transition: opacity 1s ease;
  margin-top: 140px;
}

.content.visible {
  visibility: visible;
  opacity: 1;
}

.particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.particle {
  position: absolute;
  background: radial-gradient(circle, rgba(255,0,0,0.9) 0%, rgba(255,0,0,0) 70%);
  width: 18px;
  height: 18px;
  border-radius: 50%;
  animation: floatUp linear infinite;
  opacity: 0.7;
}

@keyframes floatUp {
  from { transform: translateY(120vh) translateX(0); }
  to { transform: translateY(-20vh) translateX(30px); }
}