Fonts and CSS issues

Site URL: https://www.goshencoffee.com

I inherited a site from a client. It's mostly gorgeous. It had CSS for some fonts already built in, but they want even more customization. I've searched and tried to change this as much as possible on my own, but I'm struggling. In the menu, the dropdown should match the nav font. On all coffee pages, they want the Coffee titles in Father fontface, but on one page, that's not happening. Please see screenshots. They also want the prices in Nevis font to match their labels. Both fonts have been uploaded. TIA for help on this one. 

@font-face {   
font-family: 'Father',;
src: url(fontURL.ttf/.otf), url(https://static1.squarespace.com/static/5e31c37f253b4f1ddc13f2e1/t/5e3d75f9d4ad48682c3de76c/1581086201994/Father.ttf), url(https://static1.squarespace.com/static/5e31c37f253b4f1ddc13f2e1/t/5e3d760659d5db74cddeafa0/1581086214581/father-webfont.woff)
, url(https://static1.squarespace.com/static/5e31c37f253b4f1ddc13f2e1/t/5e3d76102875eb21496be4be/1581086224914/father-webfont.woff2); 
}
h1 {
  font-family: 'Father' !important;
}
h2 {
  font-family: 'Father';
}
h3 {
  font-family: 'Father';
}
h4 {
  font-family: 'Father';
}
P {
  font-family: 'Arial';
}
div {
  font-family: 'Father';
}

input {
  font-family: 'Father';
}

.sqs-block-button .sqs-block-button-element--small {
 width: 56%;
}

.sqs-gallery-design-carousel .sqs-gallery-controls .next,
.sqs-gallery-design-carousel .sqs-gallery-controls .previous {
 display: block;
 float: right;
 position: relative;
 top: auto;
 left: -15px;
 right: 15px;
 bottom: auto;
 margin: 0 0 15px 0;
 padding: 0;
 background-color: transparent;
 color: inherit !important;
 font-size: 16px;
 line-height: 16px;
 cursor: pointer;
}

.sqs-gallery-design-carousel .sqs-gallery-controls .next:before {
 font-family: 'squarespace-ui-font';
 font-style: normal;
 speak: none;
 font-weight: normal;
 -webkit-font-smoothing: antialiased;
 content: "\E003";
 text-align: center;
 display: inline-block;
 vertical-align: middle;
}

.sqs-gallery-design-carousel .sqs-gallery-controls .next:before {
 font-size: 64px;
 width: 64px;
 height: 64px;
 line-height: 64px;
}

.sqs-gallery-design-carousel .sqs-gallery-controls .next:before {
 font-size: 32px;
 width: 16px;
 height: 32px;
 line-height: 32px;
}

.sqs-gallery-design-carousel .sqs-gallery-controls .previous {
 margin-right: 10px;
}

.sqs-gallery-design-carousel .sqs-gallery-controls .previous:before {
 font-family: 'squarespace-ui-font';
 font-style: normal;
 speak: none;
 font-weight: normal;
 -webkit-font-smoothing: antialiased;
 content: "\E000";
 text-align: center;
 display: inline-block;
 vertical-align: middle;
}

.sqs-gallery-design-carousel .sqs-gallery-controls .previous:before {
 font-size: 64px;
 width: 64px;
 height: 64px;
 line-height: 64px;
}

.sqs-gallery-design-carousel .sqs-gallery-controls .previous:before {
 font-size: 32px;
 width: 16px;
 height: 32px;
 line-height: 32px;
}

.sqs-block-summary-v2 .summary-heading {
 font-size: 24px;
}

.summary-heading {
 text-align: center !important;
}

.summary-carousel-pager .previous {
   position: absolute !important;
   left: 18px !important;
   right: inherit !important;
}

.summary-header-text{
   position: relative !important;
   padding: 0 !important;
   left: 25px !important;
}

/* Change dropdown menu background */
.header-nav-folder-content {
   background: #ffffff !important;
}

.header-nav-folder-item {
    text-align: center;
}

.header .header-layout-nav-right .header-nav .header-nav-item--folder .header-nav-folder-content {
    left: -4.25em;
}

.header-nav-folder-item {
    border: 2px solid black;
    padding-top: 15px;
}
.header-nav-folder-item:nth-child(even) {
    border-top: none;
    border-bottom: none;
}

.header-nav-folder-content {
    padding: 0 !important;
}
/* dropdown font */
.header-nav-folder-content {
    font-family: 'Arial' !important;
}
/* quick view */
span.sqs-product-quick-view-button {
    font-family: 'Father';
}
.markdown-block a {
    color: white !important;
}
#header {
    background-color: #3b4f40 !important;
    position: -webkit-sticky !important;
    position: sticky !important;
}
@font-face {
  font-family: 'Nevis',; https://static1.squarespace.com/static/5e31c37f253b4f1ddc13f2e1/t/5e4abcc294105964d500cdff/1581956290895/NevisBold-KGwl.ttf
}
h1.ProductList-title {
    font-family: Nevis !important;
}
h4.ProductList-title {
  font-family: Nevis !important;
}

 In the menu, the dropdown should match the nav font. On all coffee pages, they want the Coffee titles in Father fontface, but on one page, that's not happening. Please see screenshots. They also want the prices in Nevis font to match their labels. 

Dropdown will use Nav font, or vice-versa?

can you share link to coffee page?

All price, or price on homepage?