.btn-primary {
    border-radius: 3px;
    padding: 5px 15px;
    border: none;
    transition: all .3s;
    background: linear-gradient(90deg, #e2e0e0 50%, var(--primary-color-serbia) 50%) right;
    color: white;
    background-size: 201% 100%;
    font-size: 16px;
}

.btn-primary:hover {
    color: var(--primary-color-serbia) !important;
    background-position: left;
    background-color: #e2e0e0 !important;
}

.navbar-toggle {
    border: none;
    background: none;
}