.cont__top {
  .section {
    border: 1px solid #ddd;
    border-left: 12px solid #64b5f6;
    padding: 1.5rem;
    margin: 2rem auto;
    border-radius: 0.5rem;
  }

  .content-block {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 1rem;
  }

  .content-block img {
    width: 300px;
    height: auto;
    border-radius: 10px;
  }

  .buttons {
    display: flex;
    flex-direction: column;
    gap: 0.5em;
  }

  .buttons a {
    display: inline-block;
    padding: 0.6em 1.2em;
    background: #2196f3;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background 0.3s;
    white-space: nowrap;
  }

  .buttons a:hover {
    background: #1976d2;
  }

  .download a {
    background: #4caf50;
  }

  .download a:hover {
    background: #388e3c;
  }

  details {
    padding: 1rem;
  }

  details summary {
    cursor: pointer;
    background: #90caf9;
    padding: 0.75em 1em;
    margin-bottom: 1rem;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: bold;
    color: #1a237e;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    transition: background 0.3s;
  }

  details summary:hover {
    background: #64b5f6;
  }

  details[open] {
    background: #e3f2fd;
    border-radius: 10px;
    margin-top: 1em;
  }
}