* {
    box-sizing: border-box;
}

body {
    margin: 0;
}

.navigation-button {
    display: none;
    background-color: #96fcc0;
    height: 50px;
    width: 50px;
    position: fixed;
    top: 10px;
    right: 20px;
    border: 1px dotted #666666;
    border-radius: 50%;
    z-index: 2000;
    box-shadow: 0 1rem 3rem rgba(0,0,0,0.2);
    text-align: center;
    cursor: pointer;
}

.navigation {
    height: 65px;
    background-color: #96fcc0;
    width: 100%;
    position: relative;
    z-index: 1010;
}

.navigation-list {
    display: flex;
    align-items: center;
    justify-content: space-around;
    max-width: 1200px;
    height: 100%;
    margin: 0 auto;
    list-style: none;
    padding: 0;
}

.navigation-item {
    text-transform: uppercase;
    text-decoration: none;
    font-weight: bold;
    color: #000;
    padding: 10px 25px;
    transition: all .2s;
    letter-spacing: 2px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, .1);
    white-space: nowrap;
}

.navigation-item:hover {
    background-color: rgba(0, 0, 0, .15);
    color: #fff;
    text-shadow: 0 2px 5px rgba(0, 0, 0, .4);
}

.navigation-item:active {
    box-shadow: 0 8px 15px rgba(0, 0, 0, .1);
}

.selected {
    background-color: rgba(0, 0, 0, .15);
    color: #fff;
    text-shadow: 0 2px 5px rgba(0, 0, 0, .4);
    border-bottom: 3px solid #fff;
}

@media only screen and (max-width: 1000px) {
    .navigation-button {
        display: block;
    }

    .navigation-icon {
        position: relative;
        margin-top: 24px;
    }

    .navigation-icon, .navigation-icon::before, .navigation-icon::after {
        width: 26px;
        height: 2px;
        background-color: #000;
        display: inline-block;
    }

    .navigation-icon::before, .navigation-icon::after {
        content: "";
        position: absolute;
        left: 0;
        transition: all .2s;
    }

    .navigation-icon::before {
        top: -10px;
    }

    .navigation-icon::after {
        top: 10px;
    }

    .navigation-clicked .navigation-icon {
        background-color: transparent; }
    .navigation-clicked .navigation-icon::before {
        top: 0 !important;
        transform: rotate(135deg); }
    .navigation-clicked .navigation-icon::after {
        top: 0 !important;
        transform: rotate(-135deg); }

    .navigation {
        position: fixed;
        bottom: 0;
        transform: translateY(100%);
        height: unset;
        transition: all 0.5s cubic-bezier(0, 1.14, 0.41, 1);
    }

    .navigation-list {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        text-align: center;
        padding: 10px 20px;
        line-height: 2;
    }

    .navigation-item {
        display: block;
        box-shadow: unset;
    }
}