:root {
  --primary-dark: #121212;
  --secondary-dark: #1e1e1e;
  --accent-blue: #00c6ff;
  --accent-purple: #9933ff;
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --transition-speed: 0.3s;
}

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

body {
  background: linear-gradient(135deg, var(--primary-dark), var(--secondary-dark));
  color: var(--text-primary);
  font-family: 'Roboto', 'Segoe UI', sans-serif;
  line-height: 1.6;
  min-height: 100%;
  overflow-x: hidden;
}

.header {
  background: rgba(30, 30, 30, 0.85);
  backdrop-filter: blur(10px);
  padding: 1.5rem 5%;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--accent-blue);
  text-decoration: none;
  font-weight: 500;
  font-size: 1.1rem;
  transition: all var(--transition-speed) ease;
  position: relative;
  padding: 0.5rem 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
  transition: width var(--transition-speed) ease;
}

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

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

.notice {
  background: linear-gradient(90deg, rgba(0, 198, 255, 0.1), rgba(153, 51, 255, 0.1));
  border-left: 4px solid var(--accent-blue);
  padding: 1.5rem;
  margin: 6rem auto 2rem;
  max-width: 1200px;
  border-radius: 0 8px 8px 0;
  animation: pulse 3s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(0, 198, 255, 0.2); }
  50% { box-shadow: 0 0 20px 5px rgba(0, 198, 255, 0.2); }
  100% { box-shadow: 0 0 0 0 rgba(0, 198, 255, 0.2); }
}

.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 5%;
}

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(0, 198, 255, 0.05) 0%, transparent 70%);
  z-index: -1;
  animation: rotate 30s linear infinite;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 4px 20px rgba(0, 198, 255, 0.3);
}

.hero p {
  font-size: 1.2rem;
  max-width: 800px;
  margin-bottom: 2rem;
  color: var(--text-secondary);
}

.hero-image {
  width: 100%;
  max-width: 800px;
  height: auto;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  margin-top: 2rem;
  transition: transform 0.5s ease;
}

.hero-image:hover {
  transform: scale(1.02);
}

article {
  background: rgba(30, 30, 30, 0.7);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 3rem;
  margin: 3rem 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

article h2 {
  font-size: 2.2rem;
  margin-bottom: 2rem;
  color: var(--accent-blue);
  position: relative;
  padding-bottom: 1rem;
}

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

article h3 {
  font-size: 1.8rem;
  margin: 2rem 0 1.5rem;
  color: var(--text-primary);
}

article p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

table {
  width: 100%;
  margin: 2rem 0;
  border-collapse: collapse;
  background: rgba(40, 40, 40, 0.5);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

thead {
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
}

th {
  padding: 1rem;
  text-align: left;
  color: white;
  font-weight: 600;
}

td {
  padding: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

pre {
  background: #1e1e1e;
  padding: 1.5rem;
  border-radius: 8px;
  overflow-x: auto;
  font-family: 'Consolas', monospace;
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 1rem 0;
  border-left: 4px solid var(--accent-blue);
  box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.5);
}

code {
  color: #f8f8f2;
  background: transparent;
  font-family: inherit;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.image-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.image-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 198, 255, 0.2);
}

.image-card img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.image-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent 50%);
}

.footer {
  background: var(--secondary-dark);
  padding: 4rem 5%;
  margin-top: 4rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
}

.footer-section h3 {
  color: var(--accent-blue);
  margin-bottom: 1.5rem;
  font-size: 1.3rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.8rem;
}

.footer-section ul li a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}

.footer-section ul li a:hover {
  color: var(--accent-purple);
}

.copyright {
  text-align: center;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  font-size: 0.9rem;
}

@media (max-width: 1024px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  article {
    padding: 2rem;
  }
}

@media (max-width: 768px) {
  .header {
    padding: 1rem 5%;
    flex-direction: column;
    gap: 1rem;
  }
  
  .nav-links {
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  article h2 {
    font-size: 1.8rem;
  }
  
  article h3 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 3rem 0;
  }
  
  .hero h1 {
    font-size: 1.8rem;
  }
  
  article {
    padding: 1.5rem;
  }
  
  td, th {
    padding: 0.8rem;
  }
}