:root {
  --primary: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  --secondary: rgba(0, 255, 234, 0.7);
  --accent: #00ffea;
  --text: #ffffff;
  --card-bg: rgba(255, 255, 255, 0.1);
  --card-border: 1px solid rgba(255, 255, 255, 0.18);
}

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

body {
  background: var(--primary);
  color: var(--text);
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
  min-height: 100%;
  overflow-x: hidden;
}

header {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(5px);
  padding: 15px 30px;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(to right, var(--accent), #ffffff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

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

.nav-links a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  padding: 5px 0;
  transition: all 0.3s ease;
}

.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);
}

.main-content {
  max-width: 1200px;
  margin: 100px auto 50px;
  padding: 0 30px;
}

.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
  margin-bottom: 80px;
  min-height: 500px;
}

.hero-text h1 {
  font-size: 2.5rem;
  margin-bottom: 20px;
  background: linear-gradient(to right, var(--accent), #ffffff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-text p {
  font-size: 1.1rem;
  margin-bottom: 30px;
  opacity: 0.9;
}

.hero-image {
  position: relative;
  height: 400px;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
  transition: transform 0.5s ease;
}

.hero-image:hover img {
  transform: scale(1.03);
}

.hero-image::before {
  content: '';
  position: absolute;
  top: -10px;
  left: -10px;
  right: -10px;
  bottom: -10px;
  background: linear-gradient(45deg, var(--accent), transparent);
  z-index: -1;
  border-radius: 25px;
  opacity: 0.5;
}

article {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 40px;
  margin-bottom: 50px;
  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
  border: var(--card-border);
}

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

article h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100px;
  height: 3px;
  background: var(--accent);
}

article h3 {
  font-size: 1.5rem;
  margin: 30px 0 20px;
  color: var(--accent);
}

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

pre {
  background: rgba(0, 0, 0, 0.3);
  border-radius: 10px;
  padding: 20px;
  margin: 20px 0;
  overflow: auto;
  border-left: 3px solid var(--accent);
}

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

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

.grid-item {
  background: var(--card-bg);
  backdrop-filter: blur(5px);
  border-radius: 15px;
  padding: 25px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  border: var(--card-border);
  transition: transform 0.3s ease;
}

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

.grid-item img {
  width: 100%;
  border-radius: 10px;
  margin-bottom: 15px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.notice {
  background: rgba(0, 255, 234, 0.1);
  border-left: 4px solid var(--accent);
  padding: 20px;
  margin: 30px 0;
  border-radius: 0 10px 10px 0;
}

.notice p {
  margin: 0;
  font-style: italic;
}

.footer {
  text-align: center;
  padding: 30px;
  margin-top: 50px;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(5px);
}

@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .nav-links {
    gap: 15px;
  }
  
  article {
    padding: 25px;
  }
}

@media (max-width: 480px) {
  header {
    flex-direction: column;
    padding: 15px;
  }
  
  .nav-links {
    margin-top: 15px;
  }
  
  .main-content {
    padding: 0 15px;
  }
  
  .grid-container {
    grid-template-columns: 1fr;
  }
}

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

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.pulsing {
  animation: pulse 2s ease-in-out infinite;
}