:root {
  --primary: #121212;
  --secondary: #1E1E1E;
  --accent: #6F00FF;
  --highlight: #00D4FF;
  --text: #FFFFFF;
  --text-secondary: #CCCCCC;
}

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

body {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--text);
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
  padding-top: 80px;
}

.header {
  text-align: center;
  padding: 60px 20px;
  background: radial-gradient(circle at center, rgba(111,0,255,0.2) 0%, rgba(0,0,0,0) 70%);
  margin-bottom: 40px;
}

.header h1 {
  font-size: 2.8rem;
  margin-bottom: 20px;
  background: linear-gradient(90deg, var(--accent), var(--highlight));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 10px rgba(111,0,255,0.3);
}

.notice {
  background: rgba(30,30,30,0.8);
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 15px;
  margin: 20px auto;
  max-width: 800px;
  text-align: center;
  box-shadow: 0 0 15px rgba(111,0,255,0.2);
}

article {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

h2 {
  font-size: 2rem;
  margin: 40px 0 20px;
  color: var(--highlight);
  position: relative;
  padding-left: 15px;
}

h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 5px;
  height: 80%;
  width: 4px;
  background: linear-gradient(to bottom, var(--accent), var(--highlight));
  border-radius: 2px;
}

h3 {
  font-size: 1.5rem;
  margin: 30px 0 15px;
  color: var(--text);
}

p {
  margin-bottom: 20px;
  font-size: 1.1rem;
  color: var(--text-secondary);
}

pre {
  background: var(--secondary);
  border-left: 4px solid var(--accent);
  border-radius: 0 8px 8px 0;
  padding: 20px;
  margin: 25px 0;
  overflow-x: auto;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

code {
  font-family: 'Courier New', monospace;
  color: var(--highlight);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin: 40px 0;
}

.card {
  background: var(--secondary);
  border-radius: 12px;
  padding: 25px;
  transition: all 0.3s ease;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  position: relative;
  overflow: hidden;
}

.card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--highlight));
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0,0,0,0.3);
}

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

.gallery-image {
  width: 150px;
  height: 150px;
  object-fit: cover;
  border-radius: 8px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
  border: 2px solid rgba(111,0,255,0.3);
}

.gallery-image:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 16px rgba(111,0,255,0.3);
  border-color: var(--accent);
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(18,18,18,0.95);
  backdrop-filter: blur(10px);
  padding: 15px 40px;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: bold;
  background: linear-gradient(90deg, var(--accent), var(--highlight));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-link {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  padding: 5px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

.footer {
  text-align: center;
  padding: 40px 20px;
  margin-top: 80px;
  background: var(--secondary);
  border-top: 1px solid rgba(111,0,255,0.2);
}

@media (max-width: 768px) {
  .header h1 {
    font-size: 2rem;
  }
  
  .nav {
    padding: 15px 20px;
  }
  
  .nav-links {
    gap: 15px;
  }
  
  .card-grid {
    grid-template-columns: 1fr;
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

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