:root {
  --primary: #1e3c72;
  --secondary: #2a5298;
  --accent: #ff9800;
  --text: #f8f9fa;
  --card-bg: rgba(255, 255, 255, 0.1);
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 20px 120px;
}

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

.header h1 {
  font-size: 2.8rem;
  margin-bottom: 20px;
  background: linear-gradient(90deg, #fff, #00ffea);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.notice {
  position: fixed;
  top: 20px;
  right: 20px;
  background: rgba(0,0,0,0.7);
  color: #fff;
  padding: 10px 20px;
  border-radius: 30px;
  z-index: 1000;
  font-size: 0.9rem;
  box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

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

article h2 {
  font-size: 2rem;
  margin: 30px 0 20px;
  color: #00ffea;
  position: relative;
  padding-bottom: 10px;
}

article h2:after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--accent);
}

article h3 {
  font-size: 1.5rem;
  margin: 25px 0 15px;
  color: #fff;
}

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

pre {
  background: rgba(0,0,0,0.3);
  border-radius: 8px;
  padding: 20px;
  margin: 25px 0;
  overflow: auto;
  border-left: 4px solid var(--accent);
}

code {
  font-family: 'Fira Code', monospace;
  color: #00ffea;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 25px 0;
  background: rgba(0,0,0,0.2);
  border-radius: 8px;
  overflow: hidden;
}

th, td {
  padding: 15px;
  text-align: left;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

th {
  background: rgba(0,0,0,0.4);
  color: var(--accent);
}

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

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

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

.img-card img {
  width: 100%;
  height: auto;
  display: block;
  transition: var(--transition);
}

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

.nav-links {
  position: fixed;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,0.5);
  padding: 15px 10px;
  border-radius: 0 15px 15px 0;
  z-index: 100;
}

.nav-links a {
  display: block;
  color: #fff;
  text-decoration: none;
  padding: 10px;
  margin: 10px 0;
  border-radius: 5px;
  transition: var(--transition);
  text-align: center;
}

.nav-links a:hover {
  background: var(--accent);
  color: #000;
}

.footer {
  text-align: center;
  padding: 30px 0;
  background: rgba(0,0,0,0.3);
  margin-top: 60px;
}

@keyframes float {
  0% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
  100% { transform: translateY(0); }
}

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

@media (max-width: 768px) {
  .container {
    padding: 60px 15px 100px;
  }
  
  article {
    padding: 25px;
  }
  
  .header h1 {
    font-size: 2rem;
  }
  
  .img-grid {
    grid-template-columns: 1fr;
  }
  
  .nav-links {
    display: none;
  }
}