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

body {
  background: #f8fafc;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  padding: 4rem 2rem;
  min-height: 100vh;
}

.showcase {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.header {
  margin-bottom: 4rem;
}

.title {
  font-size: clamp(3rem, 8vw, 4rem);
  font-weight: 300;
  color: #1e293b;
  margin-bottom: 1rem;
  letter-spacing: 0.1em;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem 6rem;
  margin-bottom: 4rem;
}

.effect {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.demo-text {
  font-size: clamp(2rem, 5vw, 2.8rem);
  font-weight: 700;
  line-height: 1;
}

.effect-label {
  font-size: 0.8rem;
  color: #64748b;
  font-weight: 400;
  letter-spacing: 0.1em;
}

.neon {
  color: #ffffff;
  text-shadow: 
    0 0 5px #00ffff,
    0 0 10px #00ffff,
    0 0 20px #00ffff,
    0 0 30px #00ffff;
  animation: neonFlicker 1.5s ease-in-out infinite alternate;
}

@keyframes neonFlicker {
  0% { text-shadow: 0 0 5px #00ffff, 0 0 10px #00ffff, 0 0 20px #00ffff, 0 0 30px #00ffff; }
  100% { text-shadow: 0 0 2px #00ffff, 0 0 5px #00ffff, 0 0 10px #00ffff, 0 0 15px #00ffff; }
}

.depth {
  color: #1e293b;
  text-shadow: 
    1px 1px 0 #94a3b8,
    2px 2px 0 #64748b,
    3px 3px 0 #475569,
    4px 4px 0 #334155,
    5px 5px 0 #1e293b,
    6px 6px 0 #0f172a,
    7px 7px 15px rgba(0, 0, 0, 0.3);
}

.fire {
  color: #ff4500;
  text-shadow: 
    0 0 5px #ff6500,
    0 -2px 10px #ff8500,
    0 -4px 15px #ffa500,
    0 -6px 20px #ffbf00,
    0 -8px 25px #ffdf00,
    0 -10px 30px #ffff00;
  animation: fireFlicker 0.2s ease-in-out infinite;
}

@keyframes fireFlicker {
  0%, 100% { 
    text-shadow: 
      0 0 5px #ff6500,
      0 -2px 10px #ff8500,
      0 -4px 15px #ffa500,
      0 -6px 20px #ffbf00,
      0 -8px 25px #ffdf00,
      0 -10px 30px #ffff00;
  }
  50% { 
    text-shadow: 
      0 0 8px #ff6500,
      -1px -3px 12px #ff8500,
      1px -5px 18px #ffa500,
      -1px -7px 22px #ffbf00,
      1px -9px 28px #ffdf00,
      0 -12px 35px #ffff00;
  }
}

.chromatic {
  color: #1e293b;
  text-shadow: 
    -3px 0 0 #ef4444,
    3px 0 0 #06b6d4;
}

.long-shadow {
  color: #f59e0b;
  text-shadow: 
    2px 2px 0 #d97706,
    4px 4px 0 #b45309,
    6px 6px 0 #92400e,
    8px 8px 0 #78350f,
    10px 10px 0 #451a03,
    15px 15px 0 #1c0a00,
    20px 20px 30px rgba(0, 0, 0, 0.4);
}

.outline {
  color: #fbbf24;
  text-shadow: 
    -2px -2px 0 #1e293b,
    2px -2px 0 #1e293b,
    -2px 2px 0 #1e293b,
    2px 2px 0 #1e293b;
}

.retro-game {
  color: #10b981;
  text-shadow: 
    3px 0 0 #1e293b,
    0 3px 0 #1e293b,
    -3px 0 0 #1e293b,
    0 -3px 0 #1e293b,
    6px 6px 0 #ef4444,
    6px 6px 8px rgba(0, 0, 0, 0.3);
  font-family: monospace;
  font-weight: 900;
}

.letterpress {
  color: #334155;
  text-shadow: 
    2px 2px 0 rgba(255, 255, 255, 1),
    -1px -1px 0 rgba(0, 0, 0, 0.4),
    1px 1px 4px rgba(0, 0, 0, 0.2);
}

.rainbow {
  color: #ffffff;
  text-shadow: 
    1px 1px 0 #ff0066,
    2px 2px 0 #ff3300,
    3px 3px 0 #ff9900,
    4px 4px 0 #ffcc00,
    5px 5px 0 #66ff00,
    6px 6px 0 #00ff66,
    7px 7px 0 #00ccff,
    8px 8px 0 #0066ff,
    9px 9px 0 #6600ff,
    10px 10px 20px rgba(0, 0, 0, 0.4);
}

.glitch {
  color: #1e293b;
  text-shadow: 
    2px 0 0 #ef4444,
    -2px 0 0 #06b6d4;
  animation: glitchJump 0.3s infinite;
}

@keyframes glitchJump {
  0%, 14%, 15%, 49%, 50%, 99%, 100% {
    text-shadow: 2px 0 0 #ef4444, -2px 0 0 #06b6d4;
    transform: translate(0);
  }
  1%, 48%, 51%, 98% {
    text-shadow: 4px 0 0 #ef4444, -4px 0 0 #06b6d4;
    transform: translate(-1px, 1px);
  }
}

.holographic {
  color: transparent;
  background: linear-gradient(45deg, #06b6d4, #8b5cf6, #ec4899, #f59e0b, #06b6d4);
  background-size: 300% 300%;
  background-clip: text;
  -webkit-background-clip: text;
  text-shadow: 
    0 0 10px rgba(6, 182, 212, 0.4),
    0 0 20px rgba(139, 92, 246, 0.3),
    0 0 30px rgba(236, 72, 153, 0.2);
  animation: holographicShift 4s ease-in-out infinite;
}

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

.soft-blur {
  color: #1e293b;
  text-shadow: 
    0 0 20px #8b5cf6,
    0 0 40px #8b5cf6,
    0 0 60px rgba(139, 92, 246, 0.4);
}