:root {
      --primary: #4361ee;
      --primary-light: #4895ef;
      --secondary: #3f37c9;
      --dark: #1a1a2e;
      --light: #f8f9fa;
      --success: #4cc9f0;
      --warning: #f72585;
      --border-radius: 12px;
      --box-shadow: 0 8px 20px rgba(0,0,0,0.1);
      --transition: all 0.3s ease;
    }
    
    body {
      font-family: 'Poppins', sans-serif;
      background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
      color: var(--dark);
      line-height: 1.6;
      padding: 0;
      margin: 0;
      min-height: 100vh;
    }
    
    /* Header Styles */
    .header {
      background: white;
      box-shadow: 0 2px 10px rgba(0,0,0,0.1);
      position: sticky;
      top: 0;
      z-index: 100;
    }
    
    .navbar {
      max-width: 1200px;
      margin: 0 auto;
      padding: 1rem 2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    
    .logo {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--secondary);
      text-decoration: none;
      display: flex;
      align-items: center;
    }
    
    .logo i {
      margin-right: 0.5rem;
      color: var(--primary);
    }
    
    .nav-links {
      display: flex;
      gap: 1.5rem;
    }
    
    .nav-links a {
      color: var(--dark);
      text-decoration: none;
      font-weight: 500;
      transition: var(--transition);
      padding: 0.5rem 0;
      position: relative;
    }
    
    .nav-links a:hover {
      color: var(--primary);
    }
    
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: var(--transition);
    }
    
    .nav-links a:hover::after {
      width: 100%;
    }
    
    .search-login {
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    
    .search-box {
      position: relative;
    }
    
    .search-box input {
      padding: 0.5rem 1rem 0.5rem 2rem;
      border-radius: 20px;
      border: 1px solid #ddd;
      outline: none;
      transition: var(--transition);
      font-family: 'Poppins', sans-serif;
    }
    
    .search-box input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 2px rgba(67, 97, 238, 0.2);
    }
    
    .search-box i {
      position: absolute;
      left: 0.8rem;
      top: 50%;
      transform: translateY(-50%);
      color: #777;
    }
    
    .login-btn {
      background: var(--primary);
      color: white;
      border: none;
      padding: 0.5rem 1.2rem;
      border-radius: 20px;
      font-weight: 500;
      cursor: pointer;
      transition: var(--transition);
      font-family: 'Poppins', sans-serif;
    }
    
    .login-btn:hover {
      background: var(--secondary);
      transform: translateY(-2px);
    }
    
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 2rem;
    }
    
    /* Main Content Styles */
    .main-header {
      text-align: center;
      margin-bottom: 3rem;
      padding: 2rem 0;
    }
    
    h1 {
      font-size: 2.5rem;
      color: var(--secondary);
      margin-bottom: 1rem;
      font-weight: 700;
    }
    
    .tagline {
      font-size: 1.2rem;
      color: var(--primary-light);
      max-width: 700px;
      margin: 0 auto 2rem;
    }
    
    .tools-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
      gap: 1.5rem;
      margin-bottom: 3rem;
    }
    
    .tool-card {
      background: white;
      border-radius: var(--border-radius);
      padding: 1.5rem;
      box-shadow: var(--box-shadow);
      transition: var(--transition);
      text-align: center;
      border: 1px solid rgba(0,0,0,0.05);
    }
    
    .tool-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 12px 24px rgba(0,0,0,0.15);
    }
    
    .tool-card a {
      color: var(--dark);
      text-decoration: none;
      display: flex;
      flex-direction: column;
      align-items: center;
      height: 100%;
    }
    
    .tool-icon {
      font-size: 2.5rem;
      margin-bottom: 1rem;
      color: var(--primary);
    }
    
    .tool-title {
      font-weight: 600;
      margin-bottom: 0.5rem;
      font-size: 1.1rem;
    }
    
    .tool-desc {
      color: #666;
      font-size: 0.9rem;
    }
    
    footer {
      text-align: center;
      padding: 2rem 0;
      margin-top: 3rem;
      border-top: 1px solid rgba(0,0,0,0.1);
    }
    
    .footer-links {
      display: flex;
      justify-content: center;
      gap: 1.5rem;
      margin-bottom: 1rem;
    }
    
    .footer-links a {
      color: var(--primary);
      text-decoration: none;
      transition: var(--transition);
    }
    
    .footer-links a:hover {
      color: var(--secondary);
    }
    
    .copyright {
      color: #666;
      font-size: 0.9rem;
    }
    
    /* Mobile Responsiveness */
    .menu-toggle {
      display: none;
      cursor: pointer;
      font-size: 1.5rem;
    }
    
    @media (max-width: 768px) {
      .nav-links, .search-login {
        display: none;
      }
      
      .menu-toggle {
        display: block;
      }
      
      .navbar {
        padding: 1rem;
      }
      
      .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
      }
      
      h1 {
        font-size: 2rem;
      }
      
      .search-box input {
        width: 150px;
      }
    }