body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background-color: #191724;
    color: #e0def4;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
  }

  .container {
    background: #1f1d2e;
    border-radius: 16px;
    padding: 40px;
    display: grid;
    gap: 20px;
    text-align: center;
    box-shadow: 0 0 20px rgba(236, 206, 251, 0.1);
  }

  h1 {
    color: #c4a7e7;
    font-size: 1.8rem;
    margin-bottom: 10px;
  }

  .btns {
    display: grid;
    gap: 15px;
  }

  .btn {
    background: #26233a;
    border: 2px solid #524f67;
    color: #e0def4;
    padding: 12px 24px;
    font-size: 16px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: center;
    gap: 10px;
    position: relative;
  }

  .btn:hover {
    background: #403d52;
  }

  .btn.checked {
    border-color: #9ccfd8;
    color: #9ccfd8;
  }

  .btn.checked i.fa-check {
    display: inline;
  }

  .btn i.fa-check {
    display: none;
  }

  .spinner {
    border: 3px solid #403d52;
    border-top: 3px solid #c4a7e7;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
  }

  @keyframes spin {
    0% { transform: rotate(0); }
    100% { transform: rotate(360deg); }
  }

  #timer {
    display: none;
    margin-top: 10px;
    font-size: 1rem;
    color: #f6c177;
  }

  #unlock-content {
    display: none;
    background: #26233a;
    padding: 20px;
    margin-top: 20px;
    border-radius: 12px;
  }

  .unlocked {
    border: 2px dashed #f6c177;
    padding: 10px;
  }

  a {
    text-decoration: none;
  }