:root {
  --primary: #0f2027;
  --secondary: #203a43;
  --accent: #2c5364;
  --highlight: #63b3ed;
  --neon: #9d4edd;
  --text: #e0e0e0;
  --card-bg: rgba(255, 255, 255, 0.1);
}

body {
  margin: 0;
  padding: 0;
  font-family: 'Roboto', sans-serif;
  color: var(--text);
  background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
  background-size: 400% 400%;
  animation: gradientAnimation 15s ease infinite;
  line-height: 1.6;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 20px 40px;
}

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

.header h1 {
  font-size: 2.8rem;
  margin: 0;
  background: linear-gradient(90deg, var(--highlight), var(--neon));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 15px rgba(157, 78, 221, 0.3);
}

.header p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 20px auto 0;
  color: rgba(224, 224, 224, 0.8);
}

.notice {
  position: fixed;
  top: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  padding: 8px 15px;
  border-radius: 20px;
  font-size: 0.9rem;
  z-index: 1000;
  color: var(--highlight);
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.3);
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  padding: 15px 0;
  z-index: 999;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}

.nav-links {
  display: flex;
  gap: 25px;
}

.nav-links a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  padding: 5px 0;
  transition: color 0.3s;
}

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

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

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

article {
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  padding: 40px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  margin-bottom: 60px;
}

article h2 {
  font-size: 2rem;
  color: var(--highlight);
  margin-top: 0;
  margin-bottom: 25px;
  position: relative;
  padding-bottom: 10px;
}

article h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--highlight), var(--neon));
}

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

article p {
  font-size: 1.1rem;
  margin-bottom: 20px;
}

pre {
  background: rgba(0, 0, 0, 0.5);
  border-radius: 8px;
  padding: 20px;
  overflow-x: auto;
  margin: 20px 0;
  border-left: 3px solid var(--highlight);
}

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

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 25px;
  margin: 40px 0;
}

.image-card {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.image-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.image-card img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.3s;
}

.image-card:hover img {
  transform: scale(1.05);
}

.footer {
  text-align: center;
  padding: 30px 0;
  color: rgba(224, 224, 224, 0.6);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .container {
    padding-top: 70px;
  }
  
  .header h1 {
    font-size: 2.2rem;
  }
  
  article {
    padding: 30px;
  }
  
  .image-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }
}

@media (max-width: 480px) {
  .container {
    padding: 60px 15px 30px;
  }
  
  .header h1 {
    font-size: 1.8rem;
  }
  
  article {
    padding: 20px;
  }
  
  .nav-links {
    gap: 15px;
  }
}