:root {
      --primary: #00b4d8;
      --background: #0b0f14;
      --text: #f0f0f0;
      --card: #1a1f27;
      --accent: #90e0ef;
    }
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    body {
      background-color: var(--background);
      color: var(--text);
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.6;
      display: flex;
    }
    .sidebar {
      width: 250px;
      background-color: #111827;
      padding: 20px;
      height: 100vh;
      overflow-y: auto;
      color: white;
      position: fixed;
      top: 0;
      left: 0;
    }
    .sidebar h3 {
      color: #60a5fa;
      margin-bottom: 15px;
    }
    .sidebar ul {
      list-style: none;
      padding-left: 0;
    }
    .sidebar li {
      margin: 10px 0;
    }
    .sidebar a {
      color: #cbd5e1;
      text-decoration: none;
      transition: color 0.2s;
    }
    .sidebar a:hover {
      color: #60a5fa;
    }
    .container {
      margin-left: 280px;
      margin-right: 280px;
      max-width: 885px;
      margin: 50px auto;
      padding: 30px;
      background-color: var(--card);
      border-radius: 16px;
      box-shadow: 0 0 20px rgba(0,0,0,0.4);
      max-width: calc(100% - 540px);
    }
    header h1 {
      font-size: 2.5rem;
      color: var(--primary);
      margin-bottom: 10px;
    }
    header p {
      margin-bottom: 15px;
    }
    blockquote {
      padding: 15px;
      background-color: #232c39;
      border-left: 5px solid var(--accent);
      border-radius: 5px;
      font-style: italic;
    }
    section {
      margin-top: 40px;
    }
    section h2 {
      font-size: 1.8rem;
      color: var(--accent);
      margin-bottom: 10px;
    }
    ul, ol {
      padding-left: 20px;
    }
    ul li, ol li {
      margin-bottom: 10px;
    }
    pre {
      background-color: #0d1117;
      padding: 15px;
      border-radius: 6px;
      overflow-x: auto;
      margin-top: 10px;
      color: #cdd9e5;
    }
    a {
      color: var(--primary);
      text-decoration: none;
    }
    a:hover {
      text-decoration: underline;
    }
    footer {
      margin-top: 50px;
      text-align: center;
      font-size: 0.9rem;
      color: #999;
    }
    .rightbar {
      width: 250px;
      background-color: #111827;
      padding: 20px;
      height: 100vh;
      overflow-y: auto;
      color: white;
      position: fixed;
      top: 0;
      right: 0;
    }

    .rightbar h3 {
      color: #60a5fa;
      margin-bottom: 15px;
    }

    .rightbar ul {
      list-style: none;
      padding-left: 0;
    }

    .rightbar li {
      margin: 10px 0;
    }

    .rightbar button {
      background: none;
      border: none;
      color: #60a5fa;
      cursor: pointer;
      font-size: 0.9rem;
      margin-top: 5px;
      padding: 0;
    }

    .rightbar button:hover {
      color: #90cdf4;
    }

    .news-section h3 {
      color: #60a5fa;
      margin-bottom: 15px;
    }

    .news-section ul {
      list-style: none;
      padding-left: 0;
    }

    .news-section li {
      margin: 10px 0;
      color: #cbd5e1;
      font-size: 0.9rem;
    }

    @media (max-width: 1080px) {
      .sidebar,
      .rightbar {
      display: none;
    }

    .container {
      max-width: 90%;
      margin: 30px auto;
    }
}