.detail-page {
    background-color: #6dee62;
    min-height: 100vh;
    padding: 12px;
    font-family: system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
    color: #222;
}

/* Advertisement Box */
.detail-page .ad-box {
    max-width: 1100px;
    margin: 18px auto;
    padding: 18px;
    background: #ffffff;
    border: 1px dashed #cccccc;
    text-align: center;
    color: #777;
    border-radius: 8px;
}

/* Main Container */
.detail-page .detail-container {
    max-width: 1100px;
    margin: auto;
    background: #ffffff;
    padding: 24px;
    border-radius: 14px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.08);
}


.all-books-btn{
    margin: 20px 0;
    background: transparent;
}
.all-books-btn a {
    display: inline-block;
    padding: 10px 18px ;
    
    background-color: #1c72f3;
    color: #ffffff;
    text-decoration: none;
    font-size: 25px;
    font-weight: 600;
    border-radius: 10px;
    transition: 0.3s;

}

.all-books-btn{
    background-color: #fcfdff;
}

/* Intro Text */
.detail-page .intro-text h1 {
    font-size: 28px;
    margin-bottom: 10px;
    text-align: center;
}

.detail-page .intro-text p {
    font-size: 16px;
    line-height: 1.7;
    color: #555;
    text-align: center;
    margin-bottom: 25px;
}

/* Book Image */
.detail-page .book-image img {
    width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 12px;
}

/* Download Area */
.detail-page .download-area {
    width: auto;
    max-width: 90%;
    padding: 12px 30px;
    display: flex;
    justify-content: center;
    font-size: 16px;
    border-radius: 8px;
    text-align: center;
    margin-top: 30px;
}

/* Download Button */
.detail-page .download-btn {
    display: inline-block;
    padding: 16px 50px;
    background: linear-gradient(135deg, #0d6efd, #084298);
    color: #ffffff;
    text-decoration: none;
    font-size: 18px;
    font-weight: 600;
    border-radius: 40px;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    box-shadow: 0 10px 22px rgba(13,110,253,0.35);
}

.detail-page .download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 30px rgba(13,110,253,0.5);
}

/* Note Text */
.detail-page .note {
    margin-top: 12px;
    font-size: 14px;
    color: #666;
}

/* Responsive */
@media (max-width: 768px) {
    .detail-page .detail-container {
        padding: 16px;
    }

    .detail-page .intro-text h1 {
        font-size: 22px;
    }

    .detail-page .download-btn {
        width: 100%;
        padding: 15px;
        font-size: 17px;
    }