:root {
  --background-color: #1E1E2F;
  --neon-blue: #00FFFF;
  --neon-purple: #CC00FF;
  --text-color: #FFFFFF;
  --card-bg: rgba(255, 255, 255, 0.1);
  --transition: all 0.3s ease;
}

body {
  background-color: var(--background-color);
  color: var(--text-color);
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
}

.header {
  text-align: center;
  margin-bottom: 60px;
  position: relative;
}

.header::after {
  content: "";
  display: block;
  width: 100px;
  height: 4px;
  background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple));
  margin: 20px auto;
  border-radius: 2px;
}

h1, h2, h3 {
  color: var(--neon-blue);
  margin-top: 0;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 20px;
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
}

h2 {
  font-size: 1.8rem;
  margin-bottom: 30px;
  position: relative;
  padding-bottom: 15px;
}

h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--neon-purple);
}

p {
  font-size: 1.1rem;
  margin-bottom: 30px;
}

.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
  gap: 30px;
  margin-bottom: 60px;
}

.card {
  background-color: var(--card-bg);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, var(--neon-blue), var(--neon-purple));
  z-index: -1;
  border-radius: 14px;
  opacity: 0;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.3);
}

.card:hover::before {
  opacity: 0.3;
}

.code-container {
  background: rgba(0, 0, 0, 0.3);
  border-radius: 8px;
  padding: 20px;
  margin: 30px 0;
  position: relative;
  overflow: hidden;
}

.code-container::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--neon-blue), var(--neon-purple));
}

pre {
  margin: 0;
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
  white-space: pre-wrap;
  word-wrap: break-word;
}

code {
  color: var(--neon-blue);
}

.image-gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin: 40px 0;
  justify-content: center;
}

.gallery-image {
  width: 320px;
  height: 320px;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: var(--transition);
}

.gallery-image:hover {
  transform: scale(1.03);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.note {
  background: rgba(0, 255, 255, 0.1);
  border-left: 4px solid var(--neon-blue);
  padding: 20px;
  margin: 40px 0;
  border-radius: 0 8px 8px 0;
}

.note p {
  margin: 0;
  color: var(--neon-blue);
  font-weight: 500;
}

@media (max-width: 768px) {
  .grid-container {
    grid-template-columns: 1fr;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
  100% { transform: translateY(0px); }
}

.floating {
  animation: float 3s ease-in-out infinite;
}

.highlight {
  color: var(--neon-blue);
  font-weight: 500;
}

.highlight-purple {
  color: var(--neon-purple);
  font-weight: 500;
}