:root {
  --primary-bg: #2A2A2A;
  --neon-accent: #00f3ff;
  --text-primary: #f0f0f0;
  --card-bg: rgba(40, 40, 40, 0.95);
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
  100% { transform: translateY(0px); }
}

.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--primary-bg);
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
}

.loader {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px solid var(--neon-accent);
  border-top-color: transparent;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.card-effect {
  background: var(--card-bg);
  border-radius: 15px;
  padding: 2rem;
  box-shadow: 0 10px 30px rgba(0, 243, 255, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-effect:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 243, 255, 0.3);
}

.parallax-layer {
  transition: transform 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
}