.pdf-container {
    position: relative;
    display: flex;
    flex-direction: column;
    background: #1b1b1b;
    border-radius: 16px;
    padding: 40px 30px 0 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.4);
    width: 25vw;
    margin: 0 5vw;
}

.pdf-container button.btn {
    position: absolute;
    top: 0;
    width: 50%;
    height: 100%;
}
.pdf-container button.btn.prev-page {
    left: 0;
}
.pdf-container button.btn.next-page {
    right: 0;
}
canvas {
    width: 100%;
    height: auto;
    border-radius: 10px;
    background: white;
}

.pdf-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin: 25px 10px;
}

.carousel-item {
    padding: 20px;
}

.pdf-title {
    text-align: center;
    color: white;
    font-size: 1.3rem;
    font-weight: bold;
}