.part-container {
    min-height: 100vh;
    background-attachment: fixed;
    background-size: cover;
    background-repeat: no-repeat;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
}

.part-container .part-content {
    background-color: rgba(255, 255, 255, 0.8);
    padding: 5vh 5vw;
}

.part-container .part-header {
    text-align: center;
}

.part-container .part-header img {
    max-width: 50%;
}

.part-container.part0 {
    background-image: url("../img/bg-part0.jpg");
    background-position: right center;
    animation-name: part0-movement;
    animation-direction: alternate;
    animation-duration: 90s;
    animation-iteration-count: infinite;
    animation-timing-function: linear;
    text-align: center;
}

.part-container.part0 .author {
    font-family: 'Alice', sans-serif;
    font-weight: bold;
    text-shadow: 0 0 1px #fff;
    width: 50%;
    margin: 0 auto;
}

.part-container.part1 {
    background-image: url("../img/bg-part1.jpg");
    background-position: right bottom;
}

.part-container.part2 {
    background-image: url("../img/bg-part2.jpg");
    background-position: center bottom;
}

.part-container.part3 {
    background-image: url("../img/bg-part3.jpg");
    background-position: center center;
}

.part-container.part4 {
    background-image: url("../img/bg-part4.jpg");
    background-position: left top;
}

@keyframes part0-movement {
    0% {
        background-position: right center;
    }
    
    100% {
        background-position: left center;
    }
}

.part0 h1,
.part0 h2 {
    color: #000;
    margin: 0;
    padding: 0;
}

.part0 h1 {
    font-family: 'Rubik Mono One', sans-serif;
    font-size: 6vmax;
    opacity: 0.8;
    text-shadow: #fff 1px 1px 1px;
}

.part0 h2 {
    font-family: 'Alice', serif;
    font-size: 3vmax;
    text-shadow: #fff -1px 0 1px;
    padding: 5vh 0;
    background-color: rgba(255, 255, 255, 0.4);
}

.part0 .part-centered {
    position: absolute;
    width: 100%;
    top: 50%;
    transform: translateY(-50%);
}

.part0 .parts-links {
    font-family: 'Rubik Mono One', sans-serif;
    list-style: none;
    margin: 0;
    padding: 0;
    text-align: center;
    cursor: pointer;
}

.part0 .parts-links,
.part0 .parts-links li {
    transition: all 0.4s ease-out;
}

.part0 .parts-links li a {
    color: #000;
    text-decoration: none;
}

.part-content {
    font-family: 'Alice', serif;
    font-size: 1.6vmax;
}

.part-content .parts-links {
    list-style: none;
    text-align: center;
    margin: 0;
    padding: 0;
}

.part-content .parts-links li {
    display: inline-block;
    margin: 0;
    width: 20%;
    cursor: pointer;
    transition: all 0.4s ease-out;
}

.part-content .parts-links li.active,
.part-content .parts-links li:hover {
    background-color: #000;
}

.part-content .parts-links li a {
    display: inline-block;
    color: #000;
    font-family: 'Rubik Mono One', sans-serif;
    /* padding: 2vh 0; */
    width: 100%;
}

.part-content .parts-links li.active a,
.part-content .parts-links li:hover a {
    color: #fff;
}

.part-content h1 {
    font-family: 'Rubik Mono One', sans-serif;
    font-size: 3vmax;
    text-align: center;
    margin-bottom: 0;
}

@media (orientation: landscape) {
    .part-container.part0 {
        animation-duration: 60s;
    }
    
    .part0 .parts-links li {
        display: inline-block;
        font-size: 7vw;
        width: 20%;
        text-shadow: 
        -0   -0.3vw 0  #fff,
        0   -0.3vw 0  #fff,
        -0    0.3vw 0  #fff,
        0    0.3vw 0  #fff,
        -0.3vw -0   0  #fff,
        0.3vw -0   0  #fff,
        -0.3vw  0   0  #fff,
        0.3vw  0   0  #fff,
        -0.3vw -0.3vw 0  #fff,
        0.3vw -0.3vw 0  #fff,
        -0.3vw  0.3vw 0  #fff,
        0.3vw  0.3vw 0  #fff,
        -0.3vw -0.3vw 0  #fff,
        0.3vw -0.3vw 0  #fff,
        -0.3vw  0.3vw 0  #fff,
        0.3vw  0.3vw 0  #fff;
    }
    
    .part0 .parts-links:hover li {
        font-size: 5vw;
    }
    
    .part0 .parts-links:hover li:hover {
        font-size: 8vw;
    }
    
    .part-container .part-content {
        width: 60vw;
        margin-left: 15vw;
        margin-top: 5vh;
    }
}

@media (orientation: portrait) {
    .part-container.part0 {
        animation-duration: 120s;
    }
    
    .part0 .parts-links li {
        display: block;
        font-size: 20vw;
        text-shadow: 
        -0   -1vw 0  #fff,
        0   -1vw 0  #fff,
        -0    1vw 0  #fff,
        0    1vw 0  #fff,
        -1vw -0   0  #fff,
        1vw -0   0  #fff,
        -1vw  0   0  #fff,
        1vw  0   0  #fff,
        -1vw -1vw 0  #fff,
        1vw -1vw 0  #fff,
        -1vw  1vw 0  #fff,
        1vw  1vw 0  #fff,
        -1vw -1vw 0  #fff,
        1vw -1vw 0  #fff,
        -1vw  1vw 0  #fff,
        1vw  1vw 0  #fff;
    }
    
    .part0 .parts-links:hover li:hover {
        font-size: 24vw;
    }

    .part-container .part-content {
        width: 80vw;
        margin-left: 5vw;
        margin-top: 5vh;
    }
}