:root {
  --primary: linear-gradient(135deg, #00c6ff, #0072ff, #e0c3fc, #8ec5fc);
  --secondary: #2d3748;
  --accent: #6a11cb;
  --text: #333;
  --light: #fff;
  --gray: #e0e0e0;
  --card-bg: rgba(255, 255, 255, 0.85);
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
  font-family: 'Roboto', sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: var(--primary);
  background-size: 400% 400%;
  animation: auroraMove 15s ease infinite;
  padding: 0;
  margin: 0;
  min-height: 100%;
}

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

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

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

.header h1 {
  font-size: 2.5rem;
  margin-bottom: 20px;
  background: linear-gradient(90deg, #00c6ff, #e0c3fc);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.notice {
  background: var(--card-bg);
  padding: 15px;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  margin: 20px auto;
  max-width: 800px;
  text-align: center;
  backdrop-filter: blur(5px);
  border: 1px solid rgba(255,255,255,0.2);
}

article {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 40px;
  margin: 30px 0;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  backdrop-filter: blur(5px);
  border: 1px solid rgba(255,255,255,0.2);
}

article h2 {
  font-size: 2rem;
  margin-bottom: 30px;
  color: var(--secondary);
  position: relative;
  padding-bottom: 15px;
}

article h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100px;
  height: 4px;
  background: linear-gradient(90deg, #00c6ff, #e0c3fc);
  border-radius: 2px;
}

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

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

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

.image-grid img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  transition: var(--transition);
}

.image-grid img:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

pre {
  background: #2d3748;
  border-radius: 8px;
  padding: 20px;
  margin: 20px 0;
  overflow-x: auto;
  box-shadow: inset 0 0 10px rgba(0,0,0,0.3);
}

code {
  font-family: 'Courier New', monospace;
  color: #f8f8f2;
  font-size: 0.9rem;
}

.separator {
  height: 2px;
  background: linear-gradient(90deg, #00c6ff, #e0c3fc);
  margin: 30px 0;
  border: none;
}

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

.card {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  transition: var(--transition);
  backdrop-filter: blur(5px);
  border: 1px solid rgba(255,255,255,0.2);
}

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

.button {
  display: inline-block;
  background: linear-gradient(45deg, #6a11cb, #2575fc);
  color: white;
  padding: 12px 25px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(106, 17, 203, 0.3);
  margin: 10px 0;
  border: none;
  cursor: pointer;
}

.button:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 20px rgba(106, 17, 203, 0.4);
}

.navbar {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  padding: 15px 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  z-index: 1000;
}

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

.nav-links {
  display: flex;
  gap: 20px;
}

.nav-links a {
  color: var(--secondary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  padding: 5px 10px;
  border-radius: 5px;
}

.nav-links a:hover {
  color: var(--accent);
  background: rgba(106, 17, 203, 0.1);
}

@media (max-width: 768px) {
  .container {
    padding: 15px;
  }
  
  article {
    padding: 25px;
  }
  
  .header h1 {
    font-size: 2rem;
  }
  
  .image-grid {
    grid-template-columns: 1fr;
  }
  
  .card-container {
    grid-template-columns: 1fr;
  }
  
  .nav-container {
    flex-direction: column;
    gap: 15px;
  }
  
  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  article {
    padding: 20px;
  }
  
  article h2 {
    font-size: 1.8rem;
  }
  
  article h3 {
    font-size: 1.3rem;
  }
  
  pre {
    padding: 15px;
    font-size: 0.8rem;
  }
}