body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', sans-serif;
    background-color: #f5f8fa;
    color: #1f3f7c;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    transition: background-color 0.3s, color 0.3s;
  }
  
  .container {
    text-align: center;
    max-width: 90%;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    background: white;
    animation: fadeIn 1s ease-in-out;
  }
  
  .logo {
    width: 120px;
    margin-bottom: 20px;
  }
  
  h1 {
    font-size: 1.8rem;
    margin: 0 0 10px;
  }
  
  p {
    font-size: 1rem;
    margin: 0 0 25px;
  }
  
  .ccp-button {
    background-color: #1f3f7c;
    color: white;
    text-decoration: none;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    display: inline-block;
    transition: background-color 0.2s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }
  
  .ccp-button:hover {
    background-color: #163162;
  }
  
  .toggle-mode {
    margin-top: 20px;
    background: none;
    border: none;
    font-size: 0.9rem;
    cursor: pointer;
    color: #1f3f7c;
    opacity: 0.6;
    transition: opacity 0.2s;
  }
  
  .toggle-mode:hover {
    opacity: 1;
  }
  
  .fade-in {
    animation: fadeIn 1.2s ease-out;
  }
  
  @keyframes fadeIn {
    0% {
      opacity: 0;
      transform: translateY(12px);
    }
    100% {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  /* Dark mode support */
  .dark-mode {
    background-color: #1e1e2f;
    color: #f0f0f0;
  }
  
  .dark-mode .container {
    background-color: #2c2c3a;
    color: #f0f0f0;
  }
  
  .dark-mode .ccp-button {
    background-color: #4c6ef5;
  }
  
  .dark-mode .ccp-button:hover {
    background-color: #3b5bdb;
  }
  
  .dark-mode .toggle-mode {
    color: #f0f0f0;
  }