.pdf-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: inherit;
    transition: color 0.3s;
}
.pdf-link i {
    font-size: 100px;
    color: var(--sidebar-color);
    border: 1px solid #ccc;
    padding: 20px;
    border-radius: 8px;
    margin-right: 20px;
    transition:
        color 0.3s,
        border-color 0.3s;
}
.pdf-link span {
    font-size: 24px;
    transition: color 0.3s;
}
.pdf-link:hover i {
    color: var(--primary-color);
    border-color: var(--primary-color);
}