:root {
  --primary: #0f2027;
  --secondary: #203a43;
  --accent: #00ff7f;
  --accent2: #7873f5;
  --text: #ffffff;
  --card-bg: #1e2a38;
  --highlight: #00ff7f;
}

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

body {
  background: linear-gradient(135deg, var(--primary), var(--secondary), #2c5364);
  color: var(--text);
  font-family: 'Montserrat', Arial, sans-serif;
  line-height: 1.6;
  padding: 0;
  overflow-x: hidden;
}

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

.header {
  text-align: center;
  padding: 40px 0;
  position: relative;
  overflow: hidden;
}

.header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 50% 50%, rgba(120, 115, 245, 0.1), transparent 70%);
  z-index: -1;
}

.header h1 {
  font-size: 2.5rem;
  margin-bottom: 20px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 10px rgba(0, 255, 127, 0.3);
}

.header p {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.1rem;
  opacity: 0.9;
}

.notice {
  background: rgba(30, 42, 56, 0.7);
  border-left: 4px solid var(--accent);
  padding: 15px;
  margin: 30px auto;
  max-width: 800px;
  border-radius: 0 8px 8px 0;
  font-size: 0.9rem;
}

.article-container {
  background: rgba(30, 42, 56, 0.7);
  border-radius: 12px;
  padding: 30px;
  margin: 40px auto;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

article {
  max-width: 900px;
  margin: 0 auto;
}

article h2 {
  font-size: 2rem;
  margin: 30px 0 20px;
  color: var(--accent);
  position: relative;
  padding-bottom: 10px;
}

article h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

article h3 {
  font-size: 1.5rem;
  margin: 25px 0 15px;
  color: var(--accent2);
}

article p {
  margin-bottom: 20px;
  font-size: 1.05rem;
}

.code-container {
  background: #0f2027;
  border-radius: 8px;
  padding: 20px;
  margin: 25px 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(--accent), var(--accent2));
}

pre {
  margin: 0;
  overflow: auto;
}

code {
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
  color: var(--accent);
}

.highlight {
  color: var(--highlight);
  font-weight: bold;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin: 30px 0;
}

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

.image-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 255, 127, 0.2);
}

.image-card img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px 12px 0 0;
}

.image-caption {
  padding: 15px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
}

.nav-links {
  display: flex;
  justify-content: center;
  margin: 30px 0;
  flex-wrap: wrap;
  gap: 15px;
}

.nav-link {
  padding: 10px 20px;
  background: rgba(32, 58, 67, 0.7);
  border-radius: 25px;
  color: var(--text);
  text-decoration: none;
  transition: all 0.3s ease;
  border: 1px solid rgba(0, 255, 127, 0.3);
}

.nav-link:hover {
  background: rgba(0, 255, 127, 0.2);
  transform: translateY(-2px);
}

.footer {
  text-align: center;
  padding: 30px 0;
  margin-top: 50px;
  border-top: 1px solid rgba(32, 58, 67, 0.5);
}

.button {
  display: inline-block;
  background: linear-gradient(45deg, var(--accent2), var(--accent));
  border: none;
  border-radius: 25px;
  padding: 12px 25px;
  color: #fff;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  font-weight: bold;
  text-decoration: none;
  margin: 10px 0;
  box-shadow: 0 4px 15px rgba(120, 115, 245, 0.3);
}

.button:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 25px rgba(120, 115, 245, 0.5);
}

.neon-text {
  animation: neonGlow 3s ease-in-out infinite;
}

@keyframes neonGlow {
  0% {
    text-shadow: 0 0 5px var(--accent), 0 0 10px var(--accent), 0 0 20px var(--accent);
    color: var(--accent);
  }
  50% {
    text-shadow: 0 0 10px var(--accent2), 0 0 20px var(--accent2), 0 0 30px var(--accent2);
    color: var(--accent2);
  }
  100% {
    text-shadow: 0 0 5px var(--accent), 0 0 10px var(--accent), 0 0 20px var(--accent);
    color: var(--accent);
  }
}

@media (max-width: 768px) {
  .header h1 {
    font-size: 2rem;
  }
  
  .header p {
    font-size: 1rem;
  }
  
  article h2 {
    font-size: 1.7rem;
  }
  
  article h3 {
    font-size: 1.3rem;
  }
  
  .image-grid {
    grid-template-columns: 1fr;
  }
  
  .nav-links {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .article-container {
    padding: 20px;
  }
  
  .code-container {
    padding: 15px;
  }
  
  code {
    font-size: 0.8rem;
  }
}