body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #ffffff;
    color: white;
  }

  .logo-link {
    text-decoration: none;
    color: inherit;
  }

  .timeline-container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
  }

  .timeline-container::after {
    content: '';
    position: absolute;
    width: 4px;
    background-color: white;
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -2px;
    z-index: 1;
  }

  .timeline-item {
    padding: 20px 40px;
    position: relative;
    width: 50%;
    opacity: 0;
    transform: translateY(50px);
    transition: all 1s ease;
  }

  .timeline-item.show {
    opacity: 1;
    transform: translateY(0);
  }

  .timeline-item.left {
    right: 8.07%;
    z-index: 5; /* acima da linha */
  }

  .timeline-item.right {
    left: 50%;
    z-index: 5; /* acima da linha */
  }

  .timeline-content {
    background-color: #fcfcfc;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.3);
    position: relative;
    color: #fff;
    z-index: 5; /* acima da linha */
  }

  .timeline-img {
    position: absolute;
    top: 20px;
    width: 40px;
    height: 40px;
    background: #ececec;
    border: 5px solid #ffffff;
    border-radius: 50%;
    left: 50%;
    margin-left: -20px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    z-index: 5; /* acima da linha */
  }

  .timeline-img.date-left {
    left: auto;
    right: 100%;
    margin-right: -25px;
    position: absolute;
    z-index: 10;
  }
  
  .timeline-img.date-right {
    left: 100%;
    margin-left: -20px;
    right: auto;
    position: absolute;     /* necessário para z-index funcionar */
    z-index: 10;            /* valor maior que os elementos que estão por cima */
  }

  .timeline-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;     /* necessário para z-index funcionar */
    z-index: 10;  
  }

  .timeline-content h3 {
    margin-top: 0;
    font-size: 1.4em;
    color: #000000;
  }

  .timeline-content h4 {
    margin: 5px 0 10px;
    font-size: 0.8em;
    font-weight: normal;
    color: #000000;
  }

  .timeline-content p {
    margin: 10px 0;
    line-height: 1.5;
    color: #000000;
  }

  .stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 15px;
  }

  .stack span {
    background-color: #3357f8;
    color: #fff;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85em;
    white-space: nowrap;
  }

  /* Linha central */
.timeline-line {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    background-color: #014092be;
    top: 0;
    bottom: 0; /* <- garante que vá até o final do container */
    z-index: 1;
  }

  .research-container {
    position: relative; /* <- importante para a linha ficar relativa a este container */
    padding: 60px 20px;
  }


  .timeline-date-text {
    position: absolute;
    top: 0;
    font-size: 14px;
    background: #ffffffe7;
    color: #000000;
    padding: 6px 10px;
    border-radius: 8px;
    white-space: nowrap;
    z-index: 10;
    box-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
  }
  
  .timeline-date-text.date-left {
    left: -250px; /* ajuste conforme necessário */
    top: 20px;
  }
  
  .timeline-date-text.date-right {
    right: -230px;
    top: 30px;
  }