/* Global cyberpunk styling */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #0a0a1a;
  --bg-secondary: #1a1a2e;
  --text-primary: #ffffff;
  --text-secondary: #b0b0c0;
  --neon-cyan: #00ffff;
  --neon-magenta: #ff00ff;
  --neon-green: #00ff00;
  --neon-orange: #ff6600;
  --neon-pink: #ff0099;
  --neon-blue: #0099ff;
  --neon-yellow: #ffff00;
  --neon-purple: #9900ff;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

/* Cyberpunk background effect */
body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    repeating-linear-gradient(
      0deg,
      rgba(255, 255, 255, 0.03) 0px,
      transparent 1px,
      transparent 2px,
      rgba(255, 255, 255, 0.03) 3px
    );
  pointer-events: none;
  z-index: 0;
}

.container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 600px;
  padding: 20px;
}

/* Neon title effect */
.neon-title {
  font-size: 4rem;
  font-weight: bold;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--neon-cyan);
  text-shadow:
    0 0 10px var(--neon-cyan),
    0 0 20px var(--neon-cyan),
    0 0 30px var(--neon-cyan),
    0 0 40px var(--neon-cyan);
  animation: neonPulse 2s ease-in-out infinite;
  letter-spacing: 0.3rem;
}

@keyframes neonPulse {
  0%, 100% {
    text-shadow:
      0 0 10px var(--neon-cyan),
      0 0 20px var(--neon-cyan),
      0 0 30px var(--neon-cyan),
      0 0 40px var(--neon-cyan);
  }
  50% {
    text-shadow:
      0 0 5px var(--neon-cyan),
      0 0 10px var(--neon-cyan),
      0 0 15px var(--neon-cyan),
      0 0 20px var(--neon-cyan);
  }
}

/* Neon button */
.neon-button {
  background: transparent;
  border: 2px solid var(--neon-cyan);
  color: var(--neon-cyan);
  padding: 1rem 2rem;
  font-size: 1.2rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.2rem;
  position: relative;
  overflow: hidden;
}

.neon-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--neon-cyan);
  opacity: 0.2;
  transition: left 0.3s ease;
  z-index: -1;
}

.neon-button:hover::before {
  left: 0;
}

.neon-button:hover {
  box-shadow:
    0 0 10px var(--neon-cyan),
    0 0 20px var(--neon-cyan),
    inset 0 0 10px var(--neon-cyan);
  transform: translateY(-2px);
}

.neon-button:active {
  transform: translateY(0);
}

/* Neon input */
.neon-input {
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid var(--neon-cyan);
  color: var(--text-primary);
  padding: 0.8rem 1rem;
  font-size: 1rem;
  width: 100%;
  transition: all 0.3s ease;
  outline: none;
}

.neon-input:focus {
  box-shadow:
    0 0 10px var(--neon-cyan),
    inset 0 0 5px var(--neon-cyan);
  border-color: var(--neon-cyan);
}

.neon-input::placeholder {
  color: var(--text-secondary);
  opacity: 0.6;
}

/* Neon text */
.neon-text {
  color: var(--neon-cyan);
  text-shadow: 0 0 10px var(--neon-cyan);
}

/* Utility classes */
.hidden {
  display: none !important;
}

/* Error message */
.error-message {
  position: fixed;
  top: 20px;
  right: 20px;
  background: rgba(255, 0, 0, 0.2);
  border: 2px solid #ff0000;
  color: #ff6666;
  padding: 1rem 1.5rem;
  border-radius: 4px;
  box-shadow: 0 0 20px rgba(255, 0, 0, 0.5);
  z-index: 1000;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    transform: translateX(400px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Responsive */
@media (max-width: 768px) {
  .neon-title {
    font-size: 2.5rem;
  }

  .neon-button {
    font-size: 1rem;
    padding: 0.8rem 1.5rem;
  }
}