.utility-section {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      max-width: 800px;
      margin: 2rem auto;
      background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
      border-radius: 12px;
      padding: 2rem;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
      position: relative;
      overflow: hidden;
    }
    
    .utility-section::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, #3498db, #2ecc71, #f1c40f, #e74c3c);
      animation: rainbow-border 3s linear infinite;
    }
    
    @keyframes rainbow-border {
      0% { background-position: 0% 50%; }
      50% { background-position: 100% 50%; }
      100% { background-position: 0% 50%; }
    }
    
    .utility-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 1.5rem;
    }
    
    .utility-title {
      font-size: 1.75rem;
      color: #2c3e50;
      margin: 0;
      font-weight: 600;
    }
    
    .flash-tag {
      background: #e74c3c;
      color: white;
      padding: 0.35rem 0.75rem;
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      animation: pulse 1.5s infinite;
    }
    
    @keyframes pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }
    
    .flash-icon {
      margin-right: 0.4rem;
    }
    
    .utility-description {
      color: #5a6e7c;
      line-height: 1.6;
      margin-bottom: 2rem;
    }
    
    .calculator-button {
      display: inline-block;
      background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
      color: white;
      font-weight: 600;
      padding: 0.9rem 1.8rem;
      border-radius: 8px;
      text-decoration: none;
      font-size: 1.1rem;
      transition: all 0.3s ease;
      box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
      position: relative;
      overflow: hidden;
    }
    
    .calculator-button:hover {
      transform: translateY(-3px);
      box-shadow: 0 8px 20px rgba(52, 152, 219, 0.4);
    }
    
    .calculator-button::after {
      content: "";
      position: absolute;
      width: 30px;
      height: 100px;
      background-color: rgba(255, 255, 255, 0.3);
      top: -30px;
      left: -100px;
      transform: rotate(45deg);
      transition: all 0.5s ease;
    }
    
    .calculator-button:hover::after {
      left: 120%;
    }
    
    .calculator-icon {
      margin-right: 0.5rem;
    }
    
    .animated-bg {
      position: absolute;
      bottom: 0;
      right: 0;
      width: 150px;
      height: 150px;
      opacity: 0.07;
      z-index: 0;
    }
    
    @media (max-width: 768px) {
      .utility-section {
        padding: 1.5rem;
        margin: 1.5rem;
      }
      
      .utility-title {
        font-size: 1.5rem;
      }
      
      .utility-header {
        flex-direction: column;
        align-items: flex-start;
      }
      
      .flash-tag {
        margin-top: 0.5rem;
      }
    }