.chose-btn {
    font-size: 18px;
    padding: 12px 20px;
    width: 90%;
    max-width: 250px;
    background-color: #0073e6;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.2s ease;
    display: block;
    margin: 20px auto;
}

.chose-btn:hover {
    background-color: #005bb5;
    transform: scale(1.05);
}

#content {
    width: 90%;
    max-width: 800px;
}
  
  #content h1 {
    text-align: center;
    margin-bottom: 1rem;
  }
  
  #content label {
    display: block;
    margin: 0.5rem 0 0.2rem;
  }
  
  #content select,
  #content button {
    width: 100%;
    padding: 0.5rem;
    margin-bottom: 1rem;
    border-radius: 8px;
    border: 1px solid #ddd;
  }
  .result-box {
    padding: 1rem;
    background: #f0f8ff;
    border-radius: 8px;
    font-weight: bold;
    text-align: center;
  }