.iframe-container {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 20px 0;
}

.iframe-container iframe {
    width: 100%;
    height: 100vh;
    background-color: #f9fafb;
    border-radius: 10px;
    border: 1px solid #e0e0e0;
}

.timeline {
    position: relative;
    width: 100%;
    margin-bottom: 20px;
}

.timeline::before {
    content: "";
    position: absolute;
    top: 0;
    left: 16px;
    transform: translateX(-50%);
    height: 100%;
    width: 4px;
    background: #d7e4ed;
}

.timeline .section {
    position: relative;
    margin-bottom: 20px;
}

.timeline::after,
.section::after,
.section .content::after {
    content: "";
    display: table;
    clear: both;
}

.section::before {
    content: "";
    position: absolute;
    width: 10px;
    height: 10px;
    top: 14px;
    left: 16px;
    transform: translate(-50%, -50%);
    background: #00ca63;
    border-radius: 50%;
}

.section .content::before {
    content: "";
    display: table;
    clear: both;
}

.section .content {
    position: relative;
    margin-left: 40px;
}

.section .content .date {
    width: 100%;
    left: 122%;
    top: 50%;
    transform: translateY(-50%) translate3d(200px, 0, 0);
    color: #00ca63;
    font-weight: 700;
    font-size: 24px;
    text-align: left;
    transition: all 0.5s ease-in-out;
}

.section:nth-child(even) .content .date {
    left: auto;
    right: 122%;
    text-align: right;
    transform: translateY(-50%) translate3d(-200px, 0, 0);
}

.section.in-view .content .date {
    transform: translateY(-50%);
}

.section:nth-child(even) .content {
    float: right;
    text-align: left;
}

.references-list li {
    margin-bottom: 16px;
}

.download-button {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: end;
    font-size: 16px;
    font-weight: 700;
}

.download-button:hover .document-title {
    text-decoration: underline;
}

.download-button .download-icon {
    font-size: 24px;
    margin-left: 8px;
}

.download-button .file-icon {
    width: 40px;
    margin-right: 8px;
}


@media (min-width: 768px) {
    .pages-content {
        padding: 0 10%;
    }

    .timeline::before {
        left: 50%;
    }

    .section::before {
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
    }

    .section .content {
        width: 45%;
        text-align: right;
        margin-left: 0;
    }

    .section .content .date {
        position: absolute;
    }

    .section .text {
        transform: translate3d(-200px, 0, 0);
        transition: all 0.5s ease-in-out;
    }

    .section:nth-child(even) .text {
        transform: translate3d(200px, 0, 0);
        transition: all 0.5s ease-in-out;
    }

    .section.in-view .text {
        transform: none;
    }
}