:root {
  --primary: #0f2027;
  --secondary: #2c5364;
  --accent: #28a745;
  --text: #ffffff;
  --highlight: #fd7e14;
  --bg-gradient: linear-gradient(135deg, var(--primary), var(--secondary), #203a43, var(--primary));
}

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

body {
  background: var(--bg-gradient);
  color: var(--text);
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

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

.header {
  position: relative;
  height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 30% 50%, rgba(40, 167, 69, 0.1), transparent 70%);
  z-index: 1;
}

.header-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 40px;
  background: rgba(20, 20, 20, 0.7);
  border-radius: 15px;
  backdrop-filter: blur(10px);
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
}

.header h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  background: linear-gradient(90deg, #ffffff, #28a745);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.header p {
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto 30px;
}

.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(20, 20, 20, 0.9);
  display: flex;
  justify-content: center;
  padding: 15px 0;
  z-index: 1000;
  backdrop-filter: blur(5px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.nav-links a {
  color: var(--text);
  text-decoration: none;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  position: relative;
  padding: 5px 0;
}

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

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

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

.notice {
  background: rgba(255, 255, 255, 0.1);
  padding: 15px;
  border-radius: 8px;
  margin: 20px 0;
  text-align: center;
  border-left: 4px solid var(--highlight);
}

article {
  background: rgba(20, 20, 20, 0.7);
  padding: 40px;
  margin: 40px 0;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(5px);
}

article h2 {
  font-size: 2.5rem;
  margin-bottom: 30px;
  color: var(--text);
  position: relative;
  padding-bottom: 15px;
}

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: 2rem;
  margin: 30px 0 20px;
  color: #d1d1d1;
}

article p {
  font-size: 1.1rem;
  margin-bottom: 20px;
  color: #f0f0f0;
}

pre {
  background: rgba(0, 0, 0, 0.5);
  padding: 20px;
  border-radius: 8px;
  margin: 20px 0;
  overflow-x: auto;
  border-left: 4px solid var(--accent);
}

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

table {
  width: 100%;
  border-collapse: collapse;
  margin: 30px 0;
  background: rgba(0, 0, 0, 0.3);
  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(40, 167, 69, 0.2);
  color: var(--accent);
}

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

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin: 40px 0;
}

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

.gallery-item:hover {
  transform: translateY(-10px);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-item:hover img {
  transform: scale(1.1);
}

.button {
  display: inline-block;
  padding: 15px 30px;
  background: var(--accent);
  color: white;
  text-decoration: none;
  border-radius: 50px;
  font-weight: bold;
  margin: 10px 0;
  transition: all 0.3s ease;
  box-shadow: 0 5px 15px rgba(40, 167, 69, 0.4);
}

.button:hover {
  background: #218838;
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(40, 167, 69, 0.6);
}

.button-highlight {
  background: var(--highlight);
  box-shadow: 0 5px 15px rgba(253, 126, 20, 0.4);
}

.button-highlight:hover {
  background: #e66700;
  box-shadow: 0 8px 20px rgba(253, 126, 20, 0.6);
}

.footer {
  text-align: center;
  padding: 30px;
  margin-top: 50px;
  background: rgba(20, 20, 20, 0.7);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

@media (max-width: 768px) {
  .header h1 {
    font-size: 2.5rem;
  }
  
  .header p {
    font-size: 1rem;
  }
  
  .nav-links {
    gap: 15px;
  }
  
  article {
    padding: 20px;
  }
  
  article h2 {
    font-size: 2rem;
  }
  
  article h3 {
    font-size: 1.5rem;
  }
  
  .gallery {
    grid-template-columns: 1fr;
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

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

.particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: #ffffff;
  border-radius: 50%;
  animation: move 10s infinite linear;
}

@keyframes move {
  from {
    transform: translateY(0) translateX(0);
    opacity: 1;
  }
  to {
    transform: translateY(-1000px) translateX(1000px);
    opacity: 0;
  }
}