@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@500&display=swap');

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
  }
  
  header {
    background: rgb(47,52,65);
    background: linear-gradient(180deg, rgb(62, 68, 80) 66%, rgba(54,99,115,1) 80%, rgba(0,212,255,1) 100%);
    color: white;
    text-align: center;
    padding: 0.5rem;
    font-family: 'Orbitron', sans-serif;
   letter-spacing: 2px;
   position: relative;
  }

  
  main {
    background: rgb(55,16,96);
    background: linear-gradient(180deg, rgb(58, 62, 68) 0%, rgb(53, 53, 102) 35%, rgb(33, 68, 75) 100%);
    margin: 0;
    padding: 0;
    height: 1900px;
    min-height: 100vh;
  }

  a{
    text-decoration: none;
  }

  
  .main-container{
    position: relative;
    width: auto;
    padding-top: 10px;
}

.main-container::after{
    content: '';
    position: absolute;
    width: 10px;
    background-color:rgba(0,212,255,1);
    top:0;
    bottom: 0;
    left: 50%;
    height: 1750px;
    border-bottom-left-radius: 5px;
    border-bottom-right-radius: 5px;
}

.text-wrapper{
    padding: 10px 0px;
    position: relative;
    display: flex;
    justify-content: right;
    width: 50%;
    box-sizing: border-box;
    margin: 20px 0;
    align-items: flex-end;
    flex-wrap: wrap;
    flex-direction: column;
}

.time-mark {
    margin-top: 20px;
    margin-bottom: 10px;
    display: flex;
    height: 5px;
    width: 80%;
    background-color: rgba(0,212,255,1);
    justify-content: space-between;
    align-items: center;
}

.time-mark span{
    margin-left: 50px;
    translate: 0 -100%;
    color: aliceblue;
    font-family: 'Orbitron', sans-serif;
   letter-spacing: 2px;
}

.bola {
    height: 10px;
    width: 10px;
    border-radius: 50%;
    border: rgba(0,212,255,1) solid 4px;
    translate:  -20px;
}

.left{
    left: 0;
}

.right{
    left:50%;
    justify-content: left;
    align-items: flex-start;
}

.right .time-mark{
    flex-direction: row-reverse;
}

.right .bola {
    translate: 20px 0;
}


.content{
    height: 50px;
    width: 250px;
    margin: 0 40px;
    margin-top: 20px;
    padding: 10px 10px 10px 10px;
    background-color: #407994;
    border-radius: 4px;
    max-width: 350px;
    transition: all 0.3s ease-in-out;
    overflow: hidden;
}

.content:hover {
    height: 200px;
    width: 100%;
    transition: all 0.5s ease-in-out;
}

.content:hover p {
    margin-top: 20px;
    animation: text 2s both;
}

@keyframes text {
    50% {
        color: rgba(255, 255, 255, 0); 
    }

    100% {
        color: white;
    }
}


.content h3{
    text-transform: uppercase;
    font-size: 18px;
    color: #ffffff;
    letter-spacing:1px;
    font-weight: 600;
    margin: 0;
    text-align: center;
}

.content p{
    color: rgba(255, 255, 255, 0); 
    font-size: 18px;
    margin-top: 2px;
    text-align: justify;
}

.abaco {
    background-image: linear-gradient(0,rgba(52, 52, 61, 0.479), rgb(51, 50, 63)),url("https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSc608HyVUHI_D9NaYyjLO0oRcuQY66kh8KaA&usqp=CAU");
    background-size: cover;
}

.rodaDeLeibniz {
    background-image: linear-gradient(0,rgba(52, 52, 61, 0.363), rgb(51, 50, 63)),url("https://miro.medium.com/v2/resize:fit:700/1*F_WmaoTZ3wdztAYkjXOEFg.jpeg");
    /* background-size: cover; */
    background-position: 20%;
}

.pascalina {
    background-image: linear-gradient(0,rgba(52, 52, 61, 0.363), rgb(51, 50, 63)),url("https://farm2.staticflickr.com/1087/538696501_f7d4f42314.jpg");
    background-size: cover;
}

.tear {
    background-image: linear-gradient(0,rgba(52, 52, 61, 0.363), rgb(51, 50, 63)),url("https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Jacquard_loom_p1040320.jpg/220px-Jacquard_loom_p1040320.jpg");
    background-size: cover;
    background-position: 20%;
}


.engenhoAnalitico {
    background-image: linear-gradient(0,rgba(52, 52, 61, 0.363), rgb(51, 50, 63)),url("https://qph.cf2.quoracdn.net/main-qimg-f74bcda7cf036ed1b7a3d39bf8462fb9-lq");
    background-size: cover;
}

.colossus1 {
    background-image: linear-gradient(0,rgba(52, 52, 61, 0.363), rgb(51, 50, 63)),url("https://img.ibxk.com.br/2013/6/materias/9119619556173414.jpg?ims=328x");
    background-size: cover;
}

.ENIAC {
    background-image: linear-gradient(0,rgba(52, 52, 61, 0.363), rgb(51, 50, 63)),url("https://cdn.britannica.com/95/170195-050-EFCB2F83/ENIAC-1946.jpg");
    background-size: cover;
}

.IBM7030 {
    background-image: linear-gradient(0,rgba(52, 52, 61, 0.363), rgb(51, 50, 63)),url("https://3.bp.blogspot.com/-K4MCTxXi_B4/UIClRBNaG4I/AAAAAAAAAC4/v6bKipRldD4/s400/komputer-generasi-kedua.jpg.jpg");
    background-size: cover;
}

.IBM360 {
    background-image: linear-gradient(0,rgba(52, 52, 61, 0.363), rgb(51, 50, 63)),url("https://archive.computerhistory.org/resources/physical-object/ibm/X1321-97.lg.jpg");
    background-size: cover;
}

.altair {
    background-image: linear-gradient(0,rgba(52, 52, 61, 0.363), rgb(51, 50, 63)),url("https://altairclone.com/pictures/front2.jpg");
    background-size: cover;
}

.macintosh {
    background-image: linear-gradient(0,rgba(52, 52, 61, 0.363), rgb(51, 50, 63)),url("https://media.istockphoto.com/id/479468999/pt/foto/apple-macintosh-128-k-desde-1984-o-vintage-imac.jpg?s=612x612&w=0&k=20&c=YEc58Pc8CRO87r5sc0zggYhYt6XmcLthasb8cCQ3yz4=");
    background-size: cover;
    background-position: 20%;
}

.iphone {
    background-image: linear-gradient(0,rgba(52, 52, 61, 0.363), rgb(51, 50, 63)),url("https://t.ctcdn.com.br/rdoxiko5E1M_5i-ygUUO4X83dr8=/400x315/smart/i761670.jpeg");
    background-size: cover;
}

.referencias {
    margin: 0;
    padding: 0;
    color: rgba(0, 0, 0, 0.534);
    background-color: rgb(33, 68, 75);
}

footer {
    background: rgb(47,52,65);
    background: linear-gradient(180deg, rgb(45, 48, 53) 1%, rgb(62, 68, 80) 80%);
    color: white;
    text-align: center;
    padding: 0.5rem;
    font-family: 'Orbitron', sans-serif;
   letter-spacing: 2px;
}

footer button {
    background-color: rgb(46, 49, 56);
    height: 50px;
    width: 150px;
    font-family: 'Orbitron', sans-serif;
   letter-spacing: 2px;
   color:rgba(0,212,255,1);
   box-shadow: -1px 2px 15px 2px rgba(0, 213, 255, 0.281);
   margin-bottom: 15px;
}

footer button:hover {
    color: white;
    box-shadow: -1px 2px 15px 2px rgba(0, 213, 255, 0.481);
}

@media  (max-width: 700px) {

    .text-wrapper{
      width: 87%;  
      justify-content: right;
      margin-top: 50px;
    }

    .content {
        margin: 10px 10px 0 0px;
        /* width: fit-content;
        height: fit-content; */
    }

    .content:hover {
        height: 200px;
        width: 90%;
        transition: all 0.5s ease-in-out;
    }

    .right{
    left: 0;
    justify-content: right;
    align-items: flex-end;
}

.right .time-mark{
    flex-direction: row;
}

.right .bola {
    translate: -20px 0;
}

.main-container::after{
    left: 87%;
}
    
}