* {
 margin: 0;
 padding: 0;
 box-sizing: border-box;
 font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
        
body {
 background-color: #f0f7ff;
 color: #333;
 min-height: 100vh;
 display: flex;
 flex-direction: column;
 align-items: center;
 justify-content: center;
 padding: 20px;
}
      

.expertise-section {
 max-width: 1000px;
 width: 100%;
 background-color: white;
 border-radius: 20px;
 padding: 50px;
 box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}
        
h2 {
 text-align: center;
 color: #1a5fb4;
 margin-bottom: 40px;
 font-size: 2.5rem;
 position: relative;
 padding-bottom: 15px;
 font-family: "Press Start 2P", system-ui;
 font-weight: 400;
 font-style: normal;
}
        
h2:after {
 content: '';
 position: absolute;
 width: 100px;
 height: 4px;
 background-color: #1a5fb4;
 bottom: 0;
 left: 50%;
 transform: translateX(-50%);
 border-radius: 2px;
}
        
.expertise-list {
 display: grid;
 grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
 gap: 20px;
 margin-top: 30px;
}
        
.expertise-item {
 background-color: #f0f7ff;
 padding: 20px;
 border-radius: 12px;
 text-align: center;
 font-weight: 600;
 color: #0d3b6c;
 border-left: 5px solid #1a5fb4;
 transition: all 0.3s ease;
 box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
}
        
.expertise-item:hover {
 background-color: #1a5fb4;
 color: white;
 transform: translateY(-5px);
 box-shadow: 0 8px 16px rgba(26, 95, 180, 0.2);
}
        
footer {
 margin-top: 40px;
 text-align: center;
 color: #666;
 font-size: 0.9rem;
}
        
@media (max-width: 768px) {
  .expertise-section {
    padding: 30px 20px;
  }
            
  h2 {
    font-size: 2rem;
  }
            
  .expertise-list {
    grid-template-columns: repeat(2, 1fr);
  }
}
        
@media (max-width: 480px) {
  .expertise-list {
    grid-template-columns: 1fr;
  }
            
  .expertise-item {
    padding: 18px 15px;
  }
}




.back-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #f0f7ff;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: #3b82f6;
    padding: 10px 18px;
    transition: all 0.2s;
    font-weight: 600;
    border-radius: 50%;
    border-left: 5px solid #1a5fb4;
}

.back-button:hover {
    color: #2563eb;
    transform: translateX(-4px);
}

.back-button:active {
    transform: translateX(-2px);
}


.back-button .text {
    font-family: inherit;
    font-size: 1rem;
}