main > .container {
    padding: 70px 15px 20px;
}

.footer {
    background-color: #f5f5f5;
    font-size: .9em;
    height: 60px;
}

.footer > .container {
    padding-right: 15px;
    padding-left: 15px;
}

.not-set {
    color: #c55;
    font-style: italic;
}

/* add sorting icons to gridview sort links */
a.asc:after, a.desc:after {
    content: '';
    left: 3px;
    display: inline-block;
    width: 0;
    height: 0;
    border: solid 5px transparent;
    margin: 4px 4px 2px 4px;
    background: transparent;
}

a.asc:after {
    border-bottom: solid 7px #212529;
    border-top-width: 0;
}

a.desc:after {
    border-top: solid 7px #212529;
    border-bottom-width: 0;
}

.grid-view th {
    white-space: nowrap;
}

.hint-block {
    display: block;
    margin-top: 5px;
    color: #999;
}

.error-summary {
    color: #a94442;
    background: #fdf7f7;
    border-left: 3px solid #eed3d7;
    padding: 10px 20px;
    margin: 0 0 15px 0;
}

/* align the logout "link" (button in form) of the navbar */
.nav li > form > button.logout {
    padding-top: 7px;
    color: rgba(255, 255, 255, 0.5);
}

@media(max-width:767px) {
    .nav li > form > button.logout {
        display:block;
        text-align: left;
        width: 100%;
        padding: 10px 0;
    }
}

.nav > li > form > button.logout:focus,
.nav > li > form > button.logout:hover {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.75);
}

.nav > li > form > button.logout:focus {
    outline: none;
}

.form-group {
    margin-bottom: 1rem;
}


.content-wrapper>.content {
    padding: 0 1rem;
}


#timeline ul {
    --col-gap: 2rem;
    --row-gap: 2rem;
    --line-w: 0.25rem;
    display: grid;
    grid-template-columns: var(--line-w) 1fr;
    grid-auto-columns: max-content;
    column-gap: var(--col-gap);
    list-style: none;
    width: min(60rem, 90%);
    margin-inline: auto;
}

/* line */
#timeline ul::before {
    content: "";
    grid-column: 1;
    grid-row: 1 / span 20;
    background: rgb(225, 225, 225);
    border-radius: calc(var(--line-w) / 2);
}

/* columns*/

/* row gaps */
#timeline ul li:not(:last-child) {
    margin-bottom: var(--row-gap);
}

/* card */
#timeline ul li {
    grid-column: 2;
    --inlineP: 1.5rem;
    margin-inline: var(--inlineP);
    grid-row: span 2;
    display: grid;
    grid-template-rows: min-content min-content min-content;
}

/* date */
#timeline ul li .date {
    --dateH: 3rem;
    height: var(--dateH);
    margin-inline: calc(var(--inlineP) * -1);

    text-align: center;
    background-color: var(--accent-color);

    color: white;
    font-size: 1.25rem;
    font-weight: 700;

    display: grid;
    place-content: center;
    position: relative;

    border-radius: calc(var(--dateH) / 2) 0 0 calc(var(--dateH) / 2);
}

/* date flap */
#timeline ul li .date::before {
    content: "";
    width: var(--inlineP);
    aspect-ratio: 1;
    background: var(--accent-color);
    background-image: linear-gradient(rgba(0, 0, 0, 0.2) 100%, transparent);
    position: absolute;
    top: 100%;

    clip-path: polygon(0 0, 100% 0, 0 100%);
    right: 0;
}

/* circle */
#timeline ul li .date::after {
    content: "";
    position: absolute;
    width: 2rem;
    aspect-ratio: 1;
    background: var(--bgColor);
    border: 0.3rem solid var(--accent-color);
    border-radius: 50%;
    top: 50%;

    transform: translate(50%, -50%);
    right: calc(100% + var(--col-gap) + var(--line-w) / 2);
}

/* title descr */
#timeline ul li .title,
#timeline ul li .descr {
    background: var(--bgColor);
    position: relative;
    padding-inline: 1.5rem;
}
#timeline ul li .title {
    overflow: hidden;
    padding-block-start: 1.5rem;
    padding-block-end: 1rem;
    font-weight: 500;
}
#timeline ul li .descr {
    padding-block-end: 1.5rem;
    font-weight: 300;
}

/* shadows */
#timeline ul li .title::before,
#timeline ul li .descr::before {
    content: "";
    position: absolute;
    width: 90%;
    height: 0.5rem;
    background: rgba(0, 0, 0, 0.5);
    left: 50%;
    border-radius: 50%;
    filter: blur(4px);
    transform: translate(-50%, 50%);
}
#timeline ul li .title::before {
    bottom: calc(100% + 0.125rem);
}

#timeline ul li .descr::before {
    z-index: -1;
    bottom: 0.25rem;
}

@media (min-width: 40rem) {
    #timeline ul {
        grid-template-columns: 1fr var(--line-w) 1fr;
    }
    #timeline ul::before {
        grid-column: 2;
    }
    #timeline ul li:nth-child(odd) {
        grid-column: 1;
    }
    #timeline ul li:nth-child(even) {
        grid-column: 3;
    }

    /* start second card */
    #timeline ul li:nth-child(2) {
        grid-row: 2/4;
    }

    #timeline ul li:nth-child(odd) .date::before {
        clip-path: polygon(0 0, 100% 0, 100% 100%);
        left: 0;
    }

    #timeline ul li:nth-child(odd) .date::after {
        transform: translate(-50%, -50%);
        left: calc(100% + var(--col-gap) + var(--line-w) / 2);
    }
    #timeline ul li:nth-child(odd) .date {
        border-radius: 0 calc(var(--dateH) / 2) calc(var(--dateH) / 2) 0;
    }
}