html, body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    /* overflow: hidden; */
    background-color: #2e78a0;
}

.container-fluid {
    background-image: url('assets/images/CARTILHA_DIGITAL_CAPA.png');
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    height: 100%;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
}

.btn-wrapper {
    position: relative;
    display: inline-block;
    z-index: 1;
    top: -12vh;
}

.start-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    left: 10px;
}

.btn-start {
    background-color: #2e78a0;
    color: white;
    font-size: 24px;
    padding: 15px 50px 15px 70px;
    border: 2px solid #ffffff;
    border-radius: 50px;
    transition: background-color 0.3s;
    min-width: 15rem;
    position: relative;
    z-index: 1;
}

.btn-start:hover {
    background-color: #1e5780;
}

.paginator {
    text-decoration: none;
    color: white;
}

.btn-icon {
    position: absolute;
    left: -50px;
    top: 50%;
    transform: translateY(-50%);
    background-color: #2e78a0;
    color: white;
    border-radius: 50%;
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: bold;
    border: 2px solid #ffffff;
    z-index: 2;
    transition: background-color 0.3s;
}

.btn-icon:hover {
    background-color: #1e5780;
}

@media (max-width: 576px) {
    .btn-icon {
        width: 55px;
        height: 55px;
        font-size: 30px;
        left: -25px;
    }

    .btn-start {
        font-size: 1rem;
        font-weight: bold;
        padding: 10px 30px 10px 45px;
        min-width: 8rem;
    }
}

.alignFooter {
    position: absolute;
    top: 3vh;
    left: 50%;
    -webkit-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    transform: translateX(-50%);
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    width: 100%;
}


@media (orientation: portrait) and (max-aspect-ratio: 9/19.6) {
  .container-fluid {
    background-image: url('/assets/images/capa-1440x3200.png');
    
    background-position: top center;
  }
}


@media (orientation: portrait) and (min-aspect-ratio: 9/19.6) and (max-aspect-ratio: 9/18.3) {
  .container-fluid {
    background-image: url('/assets/images/capa-1284x2778.png');
    background-position: center center;
  }
}


@media (orientation: portrait) and (min-aspect-ratio: 9/18.3) and (max-aspect-ratio: 9/16) {
  .container-fluid {
    background-image: url('/assets/images/capa-1080x2160.png');
    background-position: center center;
  }
}


@media (orientation: portrait) and (min-aspect-ratio: 9/16) {
  .container-fluid {
    background-image: url('/assets/images/capa-1536x2048.png');
    background-position: 50% 20%;
  }
}