:root {
  --primary: #0a192f;
  --secondary: #172a45;
  --accent: #64ffda;
  --text: #ccd6f6;
  --highlight: #1e90ff;
  --glass: rgba(100, 255, 218, 0.1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Roboto', sans-serif;
}

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

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 20px 5%;
  background: rgba(10, 25, 47, 0.9);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 5px 30px rgba(0, 0, 0, 0.3);
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
}

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

.nav-links a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
}

.nav-links a:hover {
  color: var(--accent);
}

.nav-links a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background: var(--accent);
  transition: width 0.3s ease;
}

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

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

.hero {
  padding: 100px 0;
  text-align: center;
}

.hero h1 {
  font-size: 48px;
  margin-bottom: 20px;
  background: linear-gradient(90deg, var(--accent), var(--highlight));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p {
  font-size: 20px;
  max-width: 800px;
  margin: 0 auto 40px;
}

.notice {
  background: rgba(100, 255, 218, 0.1);
  padding: 15px;
  border-radius: 8px;
  margin-bottom: 40px;
  border-left: 3px solid var(--accent);
}

.notice p {
  margin: 0;
  font-size: 16px;
}

article {
  background: rgba(23, 42, 69, 0.5);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  padding: 40px;
  margin-bottom: 60px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

article h2 {
  font-size: 32px;
  margin-bottom: 30px;
  color: var(--accent);
  position: relative;
}

article h2::after {
  content: '';
  position: absolute;
  width: 50px;
  height: 3px;
  background: var(--accent);
  bottom: -10px;
  left: 0;
}

article h3 {
  font-size: 24px;
  margin: 30px 0 20px;
  color: var(--highlight);
}

article p {
  margin-bottom: 20px;
  font-size: 18px;
}

article ol {
  margin-left: 30px;
  margin-bottom: 30px;
}

article ol li {
  margin-bottom: 15px;
}

article ol li strong {
  color: var(--accent);
}

pre {
  background: rgba(10, 25, 47, 0.8);
  border-radius: 10px;
  padding: 20px;
  margin: 20px 0;
  overflow-x: auto;
  box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.5);
}

code {
  font-family: 'Fira Code', monospace;
  color: var(--accent);
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin: 40px 0;
}

.image-card {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 15px;
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.image-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.image-card img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 15px 15px 0 0;
}

.image-caption {
  padding: 15px;
  text-align: center;
  font-size: 16px;
}

.footer {
  text-align: center;
  padding: 30px 0;
  background: rgba(10, 25, 47, 0.8);
  margin-top: 60px;
}

.footer p {
  margin: 0;
  font-size: 14px;
  color: rgba(204, 214, 246, 0.7);
}

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

.floating {
  animation: float 6s ease-in-out infinite;
}

@media (max-width: 768px) {
  .header {
    padding: 15px 5%;
  }
  
  .nav-links {
    gap: 15px;
  }
  
  .hero h1 {
    font-size: 36px;
  }
  
  article {
    padding: 30px 20px;
  }
  
  article h2 {
    font-size: 28px;
  }
  
  article h3 {
    font-size: 22px;
  }
}

@media (max-width: 480px) {
  .nav-links {
    display: none;
  }
  
  .hero h1 {
    font-size: 28px;
  }
  
  .hero p {
    font-size: 16px;
  }
  
  article {
    padding: 20px 15px;
  }
  
  article h2 {
    font-size: 24px;
  }
  
  article h3 {
    font-size: 20px;
  }
  
  .image-grid {
    grid-template-columns: 1fr;
  }
}