:root {
      --primary: #2563eb;
      --primary-dark: #1d4ed8;
      --secondary: #3b82f6;
      --accent: #7c3aed;
      --dark: #1e293b;
      --light: #f8fafc;
      --gray: #64748b;
      --light-gray: #e2e8f0;
      --border: #cbd5e1;
      --success: #10b981;
      --warning: #f59e0b;
      --danger: #ef4444;
      --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
      --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
      --radius: 8px;
      --transition: all 0.3s ease;
    }
    
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    body {
      font-family: 'Segoe UI', system-ui, sans-serif;
      line-height: 1.6;
      background: var(--light);
      color: var(--dark);
      display: flex;
      min-height: 100vh;
    }
    
    /* Sidebar Navigation */
    .sidebar {
      width: 280px;
      background: var(--dark);
      color: white;
      padding: 2rem 1.5rem;
      position: fixed;
      height: 100vh;
      overflow-y: auto;
      transition: var(--transition);
      z-index: 100;
    }
    
    .logo {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 2rem;
      padding-bottom: 1.5rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .logo-icon {
      background: var(--primary);
      width: 40px;
      height: 40px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
    }
    
    .logo h1 {
      font-size: 1.5rem;
      font-weight: 700;
    }
    
    .compiler-info {
      background: rgba(255, 255, 255, 0.1);
      padding: 1rem;
      border-radius: var(--radius);
      margin-bottom: 2rem;
      font-size: 0.9rem;
    }
    
    .compiler-info i {
      margin-right: 8px;
      color: var(--success);
    }
    
    .sidebar h3 {
      font-size: 1.1rem;
      margin: 1.5rem 0 1rem;
      padding-bottom: 0.5rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .sidebar ul {
      list-style: none;
    }
    
    .sidebar li {
      margin-bottom: 0.5rem;
    }
    
    .sidebar a {
      color: rgba(255, 255, 255, 0.8);
      text-decoration: none;
      display: flex;
      align-items: center;
      padding: 0.6rem 0.8rem;
      border-radius: var(--radius);
      transition: var(--transition);
    }
    
    .sidebar a:hover {
      background: rgba(255, 255, 255, 0.1);
      color: white;
    }
    
    .sidebar a.active {
      background: var(--primary);
      color: white;
    }
    
    .sidebar a i {
      margin-right: 10px;
      width: 20px;
      text-align: center;
    }
    
    /* Main Content */
    .main-content {
      flex: 1;
      margin-left: 280px;
      padding: 3rem;
      max-width: 1000px;
    }
    
    .hero {
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: white;
      padding: 3rem;
      border-radius: var(--radius);
      margin-bottom: 3rem;
      box-shadow: var(--shadow);
    }
    
    .hero h1 {
      font-size: 2.5rem;
      margin-bottom: 1rem;
    }
    
    .hero p {
      font-size: 1.2rem;
      max-width: 700px;
      margin-bottom: 2rem;
      opacity: 0.9;
      color: white;
    }
    
    .btn {
      display: inline-block;
      background: white;
      color: var(--primary);
      padding: 0.8rem 1.5rem;
      border-radius: var(--radius);
      text-decoration: none;
      font-weight: 600;
      transition: var(--transition);
      box-shadow: var(--shadow);
    }
    
    .btn:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-md);
    }
    
    .btn i {
      margin-right: 8px;
    }
    
    .section {
      background: white;
      border-radius: var(--radius);
      padding: 2.5rem;
      margin-bottom: 2rem;
      box-shadow: var(--shadow);
    }
    
    .section h2 {
      color: var(--primary);
      font-size: 1.8rem;
      margin-bottom: 1.5rem;
      padding-bottom: 1rem;
      border-bottom: 2px solid var(--light-gray);
      display: flex;
      align-items: center;
    }
    
    .section h2 i {
      margin-right: 12px;
      background: var(--light-gray);
      width: 40px;
      height: 40px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
    }
    
    .section h3 {
      color: var(--dark);
      font-size: 1.3rem;
      margin: 1.5rem 0 1rem;
    }
    
    .section p {
      margin-bottom: 1.2rem;
      color: var(--gray);
      line-height: 1.8;
    }
    
    .feature-card {
      background: var(--light);
      border-radius: var(--radius);
      padding: 1.5rem;
      margin: 1.5rem 0;
      border-left: 4px solid var(--primary);
    }
    
    .feature-card h4 {
      display: flex;
      align-items: center;
      margin-bottom: 0.8rem;
      color: var(--primary);
    }
    
    .feature-card h4 i {
      margin-right: 10px;
    }
    
    .code-container {
      position: relative;
      margin: 1.5rem 0;
    }
    
    .code-header {
      background: var(--dark);
      color: white;
      padding: 0.6rem 1rem;
      border-radius: var(--radius) var(--radius) 0 0;
      display: flex;
      justify-content: space-between;
      font-size: 0.9rem;
      font-family: monospace;
    }
    
    .copy-btn {
      background: none;
      border: none;
      color: white;
      cursor: pointer;
      font-size: 0.9rem;
    }
    
    .copy-btn:hover {
      color: var(--secondary);
    }
    
    pre {
      background: #2d3748;
      color: #e2e8f0;
      padding: 1.5rem;
      overflow-x: auto;
      border-radius: 0 0 var(--radius) var(--radius);
      font-family: 'Fira Code', monospace;
      font-size: 0.95rem;
      line-height: 1.6;
      margin: 0;
      tab-size: 2;
    }
    
    code {
      font-family: 'Fira Code', monospace;
    }
    
    .code-comment {
      color: #a0aec0;
      font-style: italic;
      margin: 0.5rem 0;
      font-size: 0.9rem;
    }
    
    .example-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1.5rem;
      margin: 1.5rem 0;
    }
    
    .example-grid > div {
      background: var(--light);
      border-radius: var(--radius);
      overflow: hidden;
    }
    
    .example-grid h5 {
      background: var(--dark);
      color: white;
      padding: 0.8rem 1rem;
      font-size: 0.9rem;
      font-weight: 600;
    }
    
    .benefits {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 1.5rem;
      margin: 2rem 0;
    }
    
    .benefit-card {
      background: var(--light);
      padding: 1.5rem;
      border-radius: var(--radius);
      text-align: center;
      transition: var(--transition);
    }
    
    .benefit-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow);
    }
    
    .benefit-card i {
      font-size: 2.5rem;
      color: var(--primary);
      margin-bottom: 1rem;
    }
    
    .benefit-card h4 {
      margin-bottom: 0.8rem;
      color: var(--dark);
    }
    
    .footer {
      text-align: center;
      padding: 2rem;
      color: var(--gray);
      font-size: 0.9rem;
      margin-top: 2rem;
      border-top: 1px solid var(--light-gray);
    }
      .try-btn-container {
    margin-top: 1rem;
  }
  .try-btn {
    display: inline-block;
    padding: 0.6rem 1rem;
    background: #3b82f6;
    color: white;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.2s ease;
  }
  .try-btn:hover {
    background: #2563eb;
  }
    
  .hidden { display: none; }
  .toggle-btn {
    margin-left: 0.5rem;
    padding: 0.25rem 0.6rem;
    font-size: 0.8rem;
    background: #f1f5f9;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    cursor: pointer;
  }
  .toggle-btn:hover { background: #e2e8f0; }

    /* Responsive */
    @media (max-width: 900px) {
      .sidebar {
        width: 240px;
        padding: 1.5rem 1rem;
      }
      
      .main-content {
        margin-left: 240px;
        padding: 2rem;
      }
      
      .example-grid {
        grid-template-columns: 1fr;
      }
    }
    
    @media (max-width: 768px) {
      body {
        flex-direction: column;
      }
      
      .sidebar {
        position: relative;
        width: 100%;
        height: auto;
        padding: 1.5rem;
      }
      
      .main-content {
        margin-left: 0;
        padding: 1.5rem;
      }
      
      .logo {
        justify-content: center;
      }
      
      .hero {
        padding: 2rem;
        text-align: center;
      }
      
      .hero h1 {
        font-size: 2rem;
      }
    }
    #href44crc{
      overflow: hidden;
  width: 100%;
  height: 90px;
  text-align: center;
  img{
    height: 100%;
    width: 80%;
     animation: clear 0.5s linear 1;
  }
  p{
    position: absolute;
    display: inline-block;
    margin-left: -35%;
    margin-top: 1%;
    color: #002;
  }
}
@media screen and (min-width: 600px){
  #href44crc{
  overflow: hidden;
  width: 400px;
    display: flex;
  height: 150px;
  text-align: center;
  img{
    height: 100%;
    width: 95%;
     
  }
}
}
@keyframes clear{
  0%{ opacity: 0; }
  100%{ opacity: 1; }
}