:root {
  --primary: #1e3c72;
  --secondary: #2a5298;
  --accent: #ff7e5f;
  --text: #ffffff;
  --card-bg: rgba(255, 255, 255, 0.1);
  --transition: all 0.3s ease;
}

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

body {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--text);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  padding-top: 80px;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--text);
  text-decoration: none;
}

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

.nav a {
  color: var(--text);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
}

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

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

.hero {
  text-align: center;
  padding: 4rem 0;
  margin-bottom: 3rem;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  background: linear-gradient(90deg, #ffffff, #ff7e5f);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto 2rem;
}

.notice {
  background: rgba(255,255,255,0.2);
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 3rem;
  text-align: center;
  backdrop-filter: blur(5px);
}

article {
  background: rgba(0,0,0,0.2);
  border-radius: 15px;
  padding: 3rem;
  margin-bottom: 3rem;
  backdrop-filter: blur(5px);
}

article h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--accent);
  position: relative;
  padding-bottom: 0.5rem;
}

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: 2rem 0 1rem;
  color: #feb47b;
}

article p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

pre {
  background: rgba(0,0,0,0.3);
  border-radius: 8px;
  padding: 1rem;
  margin: 1.5rem 0;
  overflow-x: auto;
  border-left: 3px solid var(--accent);
}

code {
  font-family: 'Courier New', Courier, monospace;
  color: #feb47b;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(5px);
}

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

th {
  background: rgba(0,0,0,0.2);
  color: var(--accent);
}

tr:hover {
  background: rgba(255,255,255,0.05);
}

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

.image-card {
  position: relative;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 10px 20px rgba(0,0,0,0.2);
  transition: var(--transition);
}

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

.image-card img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  transition: var(--transition);
}

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

.footer {
  text-align: center;
  padding: 2rem;
  background: rgba(0,0,0,0.3);
  margin-top: 3rem;
}

@media (max-width: 768px) {
  .nav {
    display: none;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  article {
    padding: 2rem 1rem;
  }
  
  .image-grid {
    grid-template-columns: 1fr;
  }
}