* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
  color: #ffffff;
  overflow: hidden;
  height: 100vh;
  position: relative;
}

.container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
  position: relative;
  z-index: 2;
}

.content {
  text-align: center;
  max-width: 600px;
  position: relative;
  z-index: 3;
}

.status-code {
  font-size: clamp(4rem, 12vw, 8rem);
  font-weight: 900;
  background: linear-gradient(135deg, #6366f1, #8b5cf6, #06b6d4);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradient-shift 3s ease-in-out infinite;
  margin-bottom: 1rem;
  line-height: 1;
}

.title {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: #f8fafc;
  letter-spacing: -0.02em;
}

.message {
  font-size: clamp(1rem, 3vw, 1.25rem);
  color: #94a3b8;
  line-height: 1.6;
  font-weight: 400;
  max-width: 500px;
  margin: 0 auto;
}

.glow-effect {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 1;
  animation: pulse 4s ease-in-out infinite;
}

/* Background pattern */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 25% 25%, rgba(99, 102, 241, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
  z-index: 1;
}

/* Animations */
@keyframes gradient-shift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

@keyframes pulse {
  0%, 100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.5;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.1);
    opacity: 0.8;
  }
}

/* Responsive design */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }
  
  .glow-effect {
    width: 300px;
    height: 300px;
  }
}