.custom-btn-black{
    position: relative;
    overflow: hidden;
    border: none;
    color: white;
    background-color: var(--black);
    padding: 10px 25px;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: color 0.3s ease;
    border: 1px solid transparent;
}
.custom-btn-black::before {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: white; 
    z-index: 0;
    transition: height 0.4s ease;
    border-radius: 8px;
}
.custom-btn-black:hover::before {
    height: 100%;
}

.custom-btn-black:hover {
    color: var(--black);
    border: 1px solid var(--black);
}

.custom-btn-black span,
.custom-btn-black {
    position: relative;
    z-index: 1;
}

.custom-btn-white{
    position: relative;
    overflow: hidden;
    border: none;
    color: var(--black);
    background-color: white;
    padding: 10px 25px;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: color 0.3s ease;
    border: 1px solid var(--black);
}
.custom-btn-white::before {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: var(--black); 
    z-index: 0;
    transition: height 0.4s ease;
    border-radius: 8px;
}
.custom-btn-white:hover::before {
    height: 100%;
}

.custom-btn-white:hover {
    color: white !important;
}

.custom-btn-white span,
.custom-btn-white {
    position: relative;
    z-index: 1;
}

.custom-btn-dark-blue{
    position: relative;
    overflow: hidden;
    border: none;
    color: white;
    background-color: var(--dark-blue);
    padding: 10px 25px;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: color 0.3s ease;
}
.custom-btn-dark-blue::before {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: white; 
    z-index: 0;
    transition: height 0.4s ease;
    border-radius: 8px;
}
.custom-btn-dark-blue:hover::before {
    height: 100%;
}

.custom-btn-dark-blue:hover {
    color: var(--dark-blue);
}

.custom-btn-dark-blue span,
.custom-btn-dark-blue {
    position: relative;
    z-index: 1;
}

@media screen and (min-width: 2559px) {
    .custom-btn-black, .custom-btn-white, .custom-btn-dark-blue{
        font-size: 20pt;
    }
}