*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    font-family: 'montserrat', sans-serif;
}

.contenedor{
    width: 100%;
    overflow: hidden;
}

.slider-contenedor{
     width: 100%;
     display: flex ;
    
}
/* mattyycode */
.contenido-slider{
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-shrink: 0;
}



.contenido-slider .video{
    position:fixed;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background:linear-gradient(45deg,
    rgba(12, 8, 255, 0.294) 0%,
    rgba(0, 4, 23, 0.8) 100%),
    url(../img/escola-de-Luanda-Angola-1536x1024.jpg) no-repeat;
    background-position: center;
    background-size: cover;
}
.contenido-slider:nth-child(2) .video{
    background:linear-gradient(45deg,
    rgba(12, 8, 255, 0.36) 0%,
    rgba(0, 4, 23, 0.8) 100%),
    url(../img/Instituto_Médio_Politécnico_Alda-Lara.jpg) no-repeat;
    background-position: center;
    background-size: cover;
}
.contenido-slider:nth-child(3) .video{
    background:linear-gradient(45deg,
    rgba(12, 8, 255, 0.25) 0%,
    rgba(0, 4, 23, 0.8) 100%),
    url(../img/giu-vicente-FMArg2k3qOU-unsplash.jpg) no-repeat;
    background-position: center;
    background-size: cover;
 
}
.tema-prin {
    position: absolute;
    width:70%;
    z-index: 1000;
    top:45%;
    margin-left:6%;
}

.tema-prin h1{
    margin-left:5%;
  font-size:70px;
  font-weight: 100;
  color:transparent;
  -webkit-text-stroke: 1px #fff;
  background:url(../img/b.png);
  -webkit-background-clip: text;
  background-position:0 0 ;
  animation: back 20s linear infinite;
}

.tema-prin h2{
    margin-left:5%;
    font-size:50px;
    font-weight: 100;
    color:transparent;
    -webkit-text-stroke: 1px #fff;
    background:url(../img_principal/back.png);
    -webkit-background-clip :text;
    background-position:0 0 ;
    
  }
  .tema-prin p{
  margin-top: -10px;
    margin-left:7%;
    font-size:20px;
    color:#f2ebff ;
    
  }
  .tema-prin  span{
    font-size: 25px;
  }
  .contenido-slider .video .logo{
    position: absolute;
    z-index: 1000;
    top:2%;
    margin-left:3%;
    font-size:20px;
    color:#fff ;
    
  }
    .contenido-slider .video .logo img{
        width: 80px;
        height:70px;
    
  }
  .navegar a{
    color: #fff;
    width: 200px;
    background:linear-gradient(45deg,
    rgba(255, 8, 214, 0.975) 0%,
    rgb(0, 140, 255) 100%);
    display: block;
    padding: 20px 0px;
    text-align: center;
    border-radius: 3px;
    margin-top: 20px;
    text-decoration: none;
    font-size: 19px;
    font-weight: 500;
    margin-left:6%;
    cursor: pointer;
  }
  .process{
    position:absolute;
    top:80%;
    right:2%;
  }
  .process img{
    width:50px;
    height:40px;
  }

@keyframes back{
    100%{
        background-position: 2000px 0;
    }
}



.contenido-slider h2{
    font-weight: 300;
    text-align: justify;
    line-height: 30px;
}

.contenido-slider a{
    color: #fff;
    width: 200px;
    background: #6c63ff;
    display: block;
    padding: 20px 0px;
    text-align: center;
    border-radius: 3px;
    margin-top: 20px;
    text-decoration: none;
    font-size: 19px;
    cursor: pointer;
    font-weight: 500;
    

}
/* mattyycode */
.contenido-slider:nth-child(2) a{
    background: #fff;
    color: #6c63ff;


}

@media  screen and(max-width: 600px){
    .contenido-slider{
        flex-direction: column-reverse;
    }

    .contenido-slider > div{
        width: 80%;
    }

    .contenido-slider h2{
        font-size: 23px;
    }

   
}
@media (max-width: 780px) {
    .tema-prin {
        position: absolute;
        width:70%;
        z-index: 1000;
        top:35%;
        margin-left:6%;
    }


    .tema-prin h1{
        margin-left:5%;
      font-size:40px;
      font-weight: 100;
      color:transparent;
      -webkit-text-stroke: 1px #fff;
      background:url(../img/back.png);
      -webkit-background-clip: text;
      background-position:0 0 ;
      animation: back 20s linear infinite;
      padding:10px;
    }
  }
/* mattyycode */
.cadastro{
    width:100%;
    position: absolute;
    top:80%;
    left: 20%;
    opacity: 0;
    transition: all 0.5s ease;

}
.option{
    display:flex;
    justify-content: center;
    align-items: center;
    
 
}
.inicio{
    width:250px;
    height:65px;
    background-color: #fff;
    margin: 10px;
    border-radius: 5px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: url(../img_principal/371906220_TYPING_ON_LAPTOP_400px.gif);
    background-position: center;
    background-size: cover;
    box-shadow: 0 35px 80px rgba(0,0,0,0.15);
    cursor: pointer;
}
.inicio a{
    text-decoration: none;
    color:#616161;
    font-weight: 700;
}
.inicio:hover{
    border:2px solid blue;
    transition: 0.2s ;
    
}
.inicio:nth-child(2){
    background: url(../img_principal/371909290_ROCKET_400px.gif);
    background-position: center;
    background-size: cover;
}