:root {
  --primary: linear-gradient(135deg, #00ffcc, #0066ff, #cc00ff);
  --secondary: rgba(50, 50, 50, 0.8);
  --accent: #00ffcc;
  --text: #ffffff;
  --card-bg: rgba(255, 255, 255, 0.1);
  --shadow: 0 4px 6px rgba(0,0,0,0.1);
}

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

body {
  font-family: 'Roboto', sans-serif;
  color: var(--text);
  background: var(--primary);
  background-size: 600% 600%;
  animation: GradientAnimation 15s ease infinite;
  line-height: 1.6;
  overflow-x: hidden;
}

@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: 0 20px;
}

.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: var(--secondary);
  display: flex;
  justify-content: center;
  padding: 15px 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.nav-links {
  display: flex;
  gap: 30px;
}

.navbar a {
  color: var(--text);
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
}

.navbar a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background: var(--accent);
  transition: width 0.3s;
}

.navbar a:hover {
  color: var(--accent);
}

.navbar a:hover::after {
  width: 100%;
}

.header {
  text-align: center;
  padding: 150px 20px 80px;
}

.header h1 {
  font-size: 3rem;
  margin-bottom: 20px;
  text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.header p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto;
}

.notice {
  background: rgba(0,0,0,0.3);
  padding: 15px;
  border-radius: 8px;
  margin: 30px auto;
  max-width: 800px;
  text-align: center;
  backdrop-filter: blur(5px);
  border: 1px solid rgba(255,255,255,0.1);
}

article {
  background: rgba(0,0,0,0.2);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  padding: 40px;
  margin: 40px auto;
  max-width: 1000px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255,255,255,0.1);
}

article h2 {
  font-size: 2rem;
  margin-bottom: 20px;
  color: var(--accent);
}

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

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

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

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

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin: 40px 0;
}

.card {
  background: var(--card-bg);
  border-radius: 15px;
  padding: 25px;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
  backdrop-filter: blur(5px);
  border: 1px solid rgba(255,255,255,0.1);
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 25px rgba(0,0,0,0.2);
}

.card img {
  width: 100%;
  border-radius: 10px;
  margin-bottom: 15px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  transition: transform 0.3s ease;
}

.card:hover img {
  transform: scale(1.03);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 30px 0;
  background: rgba(0,0,0,0.2);
  backdrop-filter: blur(5px);
  border-radius: 10px;
  overflow: hidden;
}

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

th {
  background: rgba(0,0,0,0.3);
  color: var(--accent);
}

ol, ul {
  margin: 20px 0;
  padding-left: 30px;
}

li {
  margin-bottom: 10px;
}

.button {
  display: inline-block;
  background: linear-gradient(45deg, #00ffcc, #0066ff);
  color: white;
  padding: 12px 25px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 500;
  margin: 10px 0;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.button:hover {
  background: linear-gradient(45deg, #0066ff, #cc00ff);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}

.section {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s forwards;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

@media (max-width: 768px) {
  .nav-links {
    gap: 15px;
  }
  
  .header h1 {
    font-size: 2rem;
  }
  
  article {
    padding: 25px;
  }
  
  .card-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .navbar a {
    font-size: 14px;
  }
  
  article h2 {
    font-size: 1.5rem;
  }
  
  article h3 {
    font-size: 1.2rem;
  }
}