:root {
  --primary: #0a192f;
  --secondary: #172a45;
  --accent: #64ffda;
  --accent-light: #00d4ff;
  --text: #ccd6f6;
  --text-light: #8892b0;
}

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

body {
  font-family: 'Roboto', sans-serif;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--text);
  line-height: 1.6;
  padding: 0;
  margin: 0;
  overflow-x: hidden;
}

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

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

.header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, rgba(100, 255, 218, 0.1) 0%, transparent 70%);
  z-index: -1;
}

h1, h2, h3, h4 {
  font-family: 'Orbitron', sans-serif;
  letter-spacing: 1px;
  margin-bottom: 20px;
  color: var(--accent);
}

h1 {
  font-size: 2.5rem;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 10px;
}

h2 {
  font-size: 1.8rem;
  margin-top: 40px;
  position: relative;
  display: inline-block;
}

h2::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

h3 {
  font-size: 1.4rem;
  color: var(--text);
  margin-top: 30px;
}

p {
  margin-bottom: 20px;
  font-size: 1.1rem;
  color: var(--text-light);
}

article {
  background: rgba(23, 42, 69, 0.7);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 40px;
  margin: 40px 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(100, 255, 218, 0.1);
}

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

.image-card {
  position: relative;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.image-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
}

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

.image-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, transparent 60%, rgba(0, 0, 0, 0.7));
}

.notice {
  background: rgba(100, 255, 218, 0.1);
  border-left: 4px solid var(--accent);
  padding: 20px;
  margin: 30px 0;
  border-radius: 0 8px 8px 0;
}

.notice p {
  color: var(--text);
  font-size: 1rem;
}

pre {
  background: #1e1e1e;
  border-radius: 10px;
  padding: 20px;
  margin: 20px 0;
  overflow: auto;
  border: 1px solid rgba(100, 255, 218, 0.2);
}

code {
  font-family: 'Fira Code', monospace;
  color: #d4d4d4;
}

.language-css .token.property {
  color: #9cdcfe;
}

.language-css .token.selector {
  color: #d7ba7d;
}

.language-css .token.punctuation {
  color: #d4d4d4;
}

.language-css .token.string {
  color: #ce9178;
}

.nav-tabs {
  display: flex;
  justify-content: center;
  margin: 40px 0;
  flex-wrap: wrap;
}

.nav-tab {
  padding: 10px 20px;
  margin: 0 10px;
  background: transparent;
  border: none;
  color: var(--text-light);
  font-family: 'Orbitron', sans-serif;
  cursor: pointer;
  position: relative;
  transition: color 0.3s ease;
}

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

.nav-tab:hover, .nav-tab.active {
  color: var(--accent);
}

.nav-tab:hover::after, .nav-tab.active::after {
  width: 100%;
}

.footer {
  text-align: center;
  padding: 40px 0;
  margin-top: 60px;
  border-top: 1px solid rgba(100, 255, 218, 0.1);
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--accent-light);
  border-radius: 50%;
  opacity: 0.5;
  animation: float 15s linear infinite;
}

@keyframes float {
  0% {
    transform: translateY(0) translateX(0);
    opacity: 0;
  }
  10% {
    opacity: 0.5;
  }
  90% {
    opacity: 0.5;
  }
  100% {
    transform: translateY(-500px) translateX(200px);
    opacity: 0;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  article {
    padding: 20px;
  }
  
  .image-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }
  
  h1 {
    font-size: 1.8rem;
  }
  
  pre {
    padding: 15px;
    font-size: 0.9rem;
  }
}