.btn {
    --mdb-btn-box-shadow: rgba(99, 99, 99, 0.2) 0px 2px 8px 0px !important;
    --mdb-btn-hover-box-shadow: rgba(0, 0, 0, 0.3) 0px 5px 10px 0px !important;
    transition: 500ms;
}

:not(.btn-check) + .btn:hover, .btn:first-child:hover, .btn:focus, .btn:active {
    box-shadow: var(--mdb-btn-hover-box-shadow) !important;
}

.btn-primary {
    background: var(--mdb-primary) !important;
    color: var(--mdb-dark) !important;
    box-shadow: var(--mdb-btn-box-shadow) !important;
}

.btn-secondary {
    background: var(--mdb-secondary) !important;
    color: var(--mdb-dark) !important;
    box-shadow: var(--mdb-btn-box-shadow) !important;
}

.btn-info {
    background: var(--mdb-info) !important;
    color: var(--mdb-dark) !important;
    box-shadow: var(--mdb-btn-box-shadow) !important;
}

.btn-light {
    background: var(--mdb-light) !important;
    color: var(--mdb-gray-dark) !important;
    box-shadow: var(--mdb-btn-box-shadow) !important;
}

.btn-success {
    background: var(--mdb-success) !important;
    color: var(--mdb-light) !important;
    box-shadow: var(--mdb-btn-box-shadow) !important;
}

.btn-outline-primary {
    color: var(--mdb-light) !important;
    border-color: var(--mdb-primary) !important;
    box-shadow: var(--mdb-btn-box-shadow) !important;
    -webkit-backdrop-filter: blur(7px);
    backdrop-filter: blur(7px);
}

.btn-outline-secondary {
    color: var(--mdb-light) !important;
    border-color: var(--mdb-secondary) !important;
    box-shadow: var(--mdb-btn-box-shadow) !important;
    -webkit-backdrop-filter: blur(7px);
    backdrop-filter: blur(7px);
}

.btn-outline-info {
    color: var(--mdb-light) !important;
    border-color: var(--mdb-info) !important;
    box-shadow: var(--mdb-btn-box-shadow) !important;
    -webkit-backdrop-filter: blur(7px);
    backdrop-filter: blur(7px);
}

.btn-outline-success {
    color: var(--mdb-light) !important;
    border-color: var(--mdb-success) !important;
    box-shadow: var(--mdb-btn-box-shadow) !important;
    -webkit-backdrop-filter: blur(7px);
    backdrop-filter: blur(7px);
}

.btn-outline-danger {
    color: var(--mdb-light) !important;
    border-color: var(--mdb-danger) !important;
    box-shadow: var(--mdb-btn-box-shadow) !important;
    -webkit-backdrop-filter: blur(7px);
    backdrop-filter: blur(7px);
}

.btn-outline-dark {
    color: var(--mdb-light) !important;
    border-color: var(--mdb-dark) !important;
    box-shadow: var(--mdb-btn-box-shadow) !important;
    -webkit-backdrop-filter: blur(7px);
    backdrop-filter: blur(7px);
}

.btn-outline-light {
    color: var(--mdb-light) !important;
    border-color: var(--mdb-light) !important;
    box-shadow: var(--mdb-btn-box-shadow) !important;
    -webkit-backdrop-filter: blur(7px);
    backdrop-filter: blur(7px);
}

.btn-scroll-top {
    position: fixed;
    right: 2rem;
    bottom: 1rem;
    width: 2.75rem;
    height: 2.75rem;
    text-align: center;
    color: var(--mdb-light) !important;
    background: var(--mdb-secondary);
    line-height: 46px;
    transition: 0.5s;
    z-index: 999;
}

/* Change color of expanded accordion item. */

.accordion-button:not(.collapsed) {
    background: transparent;
    color: var(--mdb-secondary);
}

/* Design of the arrow in a accordion. */

.accordion-button:not(.collapsed):after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%234F4F4F'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}

.nav-pills .nav-link {
    border-radius: 4px !important;
    color: var(--mdb-light);
}

.nav-pills .nav-link.active {
    background: var(--mdb-primary);
    color: var(--mdb-dark);
}