.pdf_viewer .title_section {
margin-bottom: 6rem;
text-align: center;
}
.pdf_viewer .title_section .h_title  {
font-size: 4rem; 
}
.pdf-toolbar {
display: flex;
justify-content: center;
align-items: center;
margin-bottom: 20px;
background-color: #f0f0f0;
padding: 10px;
box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.pdf-toolbar button {
background-color: #9ECC3C;
border: none;
color: white;
padding: 10px 15px;
margin: 0 5px;
font-size: 14px;
font-weight: 500;
border-radius: 5px;
cursor: pointer;
transition: background-color 0.3s ease;
}
.pdf-toolbar button:hover {
background-color: #162331;
}
.pdf-toolbar button:active {
background-color: #162331;
}
.pdf-toolbar button:disabled {
background-color: #d6d6d6;
color: #999;
cursor: not-allowed;
}
.pdf-toolbar a.download {
background-color: #9ECC3C;
border: none;
color: white!important;
padding: 12px 15px;
margin: 0 5px;
font-size: 14px;
font-weight: 500;
border-radius: 5px;
cursor: pointer;
transition: background-color 0.3s ease;
text-decoration: none!important;
}
.pdf-toolbar a.download:hover {
background-color: #162331;
}
.pdf-toolbar span {
margin: 0 10px;
font-size: 14px;
font-weight: 500; 
color: #333;
}
#pdf-viewer {
width: 100%;
height: 600px;
background-color: #ffffff;
border: 1px solid #ccc;
padding: 10px;
box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
border-radius: 5px;
overflow: auto;
}
canvas {
display: block;
margin: 0 auto;
max-width: 100%;
}
.pdf_viewer #left-arrow {
position: absolute;
left: 7%;
top: 30%;
transform: translateY(-50%);
}
.pdf_viewer #left-arrow button {
color: #fff;
display: flex;
align-items: center;
justify-content: center;
transition: .3s ease-in-out;
background: #9ECC3C;
font-size: 17px;
border: none;
cursor: pointer;
}
.pdf_viewer #left-arrow button:hover {
background: #162331;
}
.pdf_viewer #right-arrow {
position: absolute; 
right: 7%;
top: 30%;
transform: translateY(-50%);
}
.pdf_viewer #right-arrow button {
color: #fff;
display: flex;
align-items: center;
justify-content: center;
transition: .3s ease-in-out;
background: #9ECC3C;
font-size: 17px;
border: none;
cursor: pointer;
}
.pdf_viewer #right-arrow button:hover {
background: #162331;
}