:root {
    --primary: linear-gradient(135deg, #00c6ff, #0072ff, #ae00ff, #ff00c8);
    --secondary: rgba(0, 0, 0, 0.7);
    --accent: #ff00c8;
    --text: #ffffff;
    --bg: #0a0a1a;
    --card-bg: rgba(255, 255, 255, 0.05);
    --font-main: 'Roboto', sans-serif;
    --font-heading: 'Montserrat', sans-serif;
  }

  @import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@600;700&family=Roboto:wght@300;400;500&display=swap');

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

  body {
    font-family: var(--font-main);
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    overflow-x: hidden;
  }

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

  /* Header */
  .hero {
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    margin-bottom: 80px;
  }

  .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    z-index: -2;
    opacity: 0.8;
  }

  .hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, transparent 0%, var(--bg) 150%);
    z-index: -1;
  }

  @keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
  }

  .hero-content {
    max-width: 800px;
    padding: 40px;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transform: translateY(20px);
    opacity: 0;
    animation: fadeIn 1s ease forwards 0.5s;
  }

  @keyframes fadeIn {
    to { opacity: 1; transform: translateY(0); }
  }

  .hero h1 {
    font-family: var(--font-heading);
    font-size: 3rem;
    margin-bottom: 20px;
    background: linear-gradient(45deg, #00c6ff, #ff00c8);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
  }

  .notice {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--secondary);
    padding: 15px 20px;
    border-radius: 10px;
    font-size: 0.9rem;
    z-index: 1000;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transform: translateY(20px);
    opacity: 0;
    animation: fadeIn 1s ease forwards 1s;
  }

  /* Navigation */
  .nav-container {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--secondary);
    backdrop-filter: blur(10px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  }

  nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
  }

  .logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text);
    text-decoration: none;
  }

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

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

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

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

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

  /* Article */
  article {
    padding: 60px 0;
  }

  article h2 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    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(--primary);
  }

  article h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    margin: 40px 0 20px;
    color: #00c6ff;
  }

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

  article strong {
    color: var(--accent);
  }

  article em {
    color: #00c6ff;
    font-style: normal;
    font-weight: 500;
  }

  article span {
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 5px;
    border-radius: 3px;
  }

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

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

  /* Image gallery */
  .image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin: 50px 0;
  }

  .image-card {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s, box-shadow 0.3s;
  }

  .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: transform 0.5s;
  }

  .image-card:hover img {
    transform: scale(1.1);
  }

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

  /* Footer */
  footer {
    background: var(--secondary);
    padding: 50px 0 20px;
    margin-top: 80px;
  }

  .footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
  }

  .footer-section h3 {
    font-family: var(--font-heading);
    margin-bottom: 20px;
    color: var(--accent);
  }

  .footer-section p {
    margin-bottom: 15px;
  }

  .footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

  /* Responsive */
  @media (max-width: 768px) {
    .hero h1 {
      font-size: 2.2rem;
    }

    .nav-links {
      gap: 15px;
    }

    article h2 {
      font-size: 1.8rem;
    }

    article h3 {
      font-size: 1.5rem;
    }
  }

  @media (max-width: 480px) {
    .hero {
      min-height: 500px;
    }

    .hero-content {
      padding: 20px;
    }

    .hero h1 {
      font-size: 1.8rem;
    }

    nav {
      flex-direction: column;
      gap: 15px;
    }

    .nav-links {
      flex-wrap: wrap;
      justify-content: center;
    }
  }