:root {
    --retro-brown: #8B4513;
    --olive-green: #556B2F;
    --beige: #F5F5DC;
    --tech-blue: #6A5ACD;
    --deep-space: #0F0526;
    --cosmic-purple: #4B0082;
    --star-white: rgba(255, 255, 255, 0.8);
    --section-padding: 80px 0;
    --content-width: min(90%, 1200px);
  }

  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
  }

  body {
    background: linear-gradient(135deg, var(--deep-space), var(--cosmic-purple));
    color: var(--beige);
    line-height: 1.6;
    font-size: 17px;
    overflow-x: hidden;
  }

  .container {
    width: var(--content-width);
    margin: 0 auto;
    padding: 0 20px;
  }

  /* Header Styles */
  header {
    background: rgba(139, 69, 19, 0.9);
    padding: 20px 0;
    position: fixed;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
  }

  .header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--beige);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .logo img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
  }

  nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
  }

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

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

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

  /* Hero Section */
  .hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
  }

  .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(139, 69, 19, 0.2) 0%, rgba(15, 5, 38, 0.9) 100%);
    z-index: -1;
  }

  .hero-content {
    max-width: 800px;
    padding: 0 20px;
    animation: fadeIn 1.5s ease-out;
  }

  .hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 20px;
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
  }

  .hero p {
    font-size: clamp(1rem, 2vw, 1.5rem);
    margin-bottom: 30px;
    opacity: 0.9;
  }

  .notice {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 8px;
    margin: 40px auto;
    max-width: 800px;
    text-align: center;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

  /* Article Styles */
  article {
    padding: var(--section-padding);
    background: rgba(15, 5, 38, 0.7);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    margin: 40px auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  }

  article h2 {
    font-size: 2.2rem;
    margin-bottom: 30px;
    color: var(--beige);
    position: relative;
    padding-bottom: 15px;
  }

  article h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, var(--tech-blue), var(--olive-green));
  }

  article h3 {
    font-size: 1.8rem;
    margin: 40px 0 20px;
    color: var(--beige);
  }

  article p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.8;
  }

  /* Code Blocks */
  pre {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    padding: 20px;
    margin: 30px 0;
    overflow-x: auto;
    border-left: 4px solid var(--tech-blue);
    box-shadow: inset 0 1px 10px rgba(0, 0, 0, 0.5);
  }

  code {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: #f8f8f2;
  }

  /* Grid Layout */
  .grid-section {
    padding: var(--section-padding);
  }

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

  .card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 30px;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

  .card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
    background: rgba(255, 255, 255, 0.1);
  }

  .card img {
    width: 100%;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
  }

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

  .card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--beige);
  }

  /* Footer */
  footer {
    background: rgba(139, 69, 19, 0.9);
    padding: 50px 0 30px;
    text-align: center;
    margin-top: 80px;
  }

  .footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
  }

  .footer-links {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .footer-links a {
    color: var(--beige);
    text-decoration: none;
    transition: color 0.3s ease;
  }

  .footer-links a:hover {
    color: var(--tech-blue);
  }

  .copyright {
    opacity: 0.7;
    font-size: 0.9rem;
  }

  /* Animations */
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }

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

  /* Responsive Design */
  @media (max-width: 768px) {
    nav ul {
      gap: 15px;
    }

    .grid-container {
      grid-template-columns: 1fr;
    }

    article {
      padding: 50px 20px;
    }
  }

  /* Starfield Animation */
  .starfield {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
  }

  .star {
    position: absolute;
    background: var(--star-white);
    border-radius: 50%;
    animation: twinkle 5s infinite;
  }

  @keyframes twinkle {
    0%, 100% { opacity: 0.2; }
    50% { opacity: 1; }
  }