/**
 * Unified PDF Viewer Styles
 * Common styles for PDF viewing and download functionality across all pages
 */

:root {
    --oily-green: #2d5016;
    --oily-golden: #b8860b;
    --light-bg: #fafafa;
    --dark-text: #1a1a1a;
}

/* PDF Viewer Modal Styles */
.modal-content {
    border-radius: 15px;
    border: none;
}

.modal-header {
    background: var(--oily-green);
    color: #fff;
    border-radius: 15px 15px 0 0;
}

.modal-title {
    font-weight: 600;
}

.modal-body {
    padding: 30px;
}

.modal-lg {
    max-width: 900px;
}

.pdf-viewer-container {
    width: 100%;
    height: 600px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
    background: #f8f9fa;
    margin-top: 20px;
}

.pdf-viewer-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.download-section {
    margin-top: 20px;
    padding: 20px;
    background: linear-gradient(135deg, #fff8e1 0%, #fff 100%);
    border-radius: 8px;
    text-align: center;
    border: 2px dashed var(--oily-golden);
}

.btn-download-large {
    background: var(--oily-golden);
    color: #fff;
    border: none;
    padding: 15px 40px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.25s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-download-large:hover {
    background: #9a7209;
    color: #fff;
    transform: scale(1.05);
}

/* Standard PDF Action Buttons */
.btn-preview {
    background-color: var(--oily-golden);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.25s ease;
    flex-shrink: 0;
    cursor: pointer;
}

.btn-preview:hover {
    background-color: #9a7209;
    color: #fff;
}

.btn-download {
    background: var(--oily-green);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.25s ease;
    flex-shrink: 0;
    cursor: pointer;
    text-decoration: none;
}

.btn-download:hover {
    background: #3d6820;
    color: #fff;
}

.btn-save {
    background: #fff;
    color: var(--oily-green);
    border: 2px solid var(--oily-green);
    padding: 8px 20px;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.25s ease;
    flex-shrink: 0;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    min-width: 80px;
}

.btn-save:hover {
    background: var(--oily-green);
    color: #fff;
}

.btn-save.saved {
    background: var(--oily-green);
    color: #fff;
    border-color: var(--oily-green);
}

.btn-bookmark {
    background: #fff;
    color: var(--oily-green);
    border: 2px solid var(--oily-green);
    padding: 8px 20px;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.25s ease;
    flex-shrink: 0;
    min-width: 100px;
    text-align: center;
    cursor: pointer;
}

.btn-bookmark:hover {
    background: var(--oily-green);
    color: #fff;
}

.btn-bookmark.bookmarked {
    background: var(--oily-green);
    color: #fff;
}

/* Alternative button styles for different pages */
.btn-view-paper {
    background-color: var(--oily-golden);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.25s ease;
    flex-shrink: 0;
    cursor: pointer;
}

.btn-view-paper:hover {
    background-color: #9a7209;
    color: #fff;
}

.btn-view-document {
    background-color: var(--oily-golden);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.25s ease;
    flex-shrink: 0;
    cursor: pointer;
}

.btn-view-document:hover {
    background-color: #9a7209;
    color: #fff;
}

/* Card action containers */
.resource-actions,
.paper-actions,
.document-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
    min-height: 45px;
    align-items: flex-start;
}

/* Responsive Design */
@media (max-width: 768px) {
    .pdf-viewer-container {
        height: 400px;
    }
    
    .modal-body {
        padding: 20px;
    }
    
    .btn-download-large {
        padding: 12px 30px;
        font-size: 1rem;
    }
    
    .btn-preview,
    .btn-download,
    .btn-view-paper,
    .btn-view-document,
    .btn-save,
    .btn-bookmark {
        padding: 8px 15px;
        font-size: 0.85rem;
        margin-right: 5px;
        margin-bottom: 5px;
    }
    
    .resource-actions,
    .paper-actions,
    .document-actions {
        flex-wrap: wrap;
        gap: 8px;
    }
}

@media (max-width: 576px) {
    .pdf-viewer-container {
        height: 300px;
    }
    
    .btn-download-large {
        padding: 10px 25px;
        font-size: 0.9rem;
    }
    
    .download-section {
        padding: 15px;
    }
    
    .btn-preview,
    .btn-download,
    .btn-view-paper,
    .btn-view-document,
    .btn-save,
    .btn-bookmark {
        padding: 8px 15px;
        font-size: 0.85rem;
        width: 100%;
        margin-right: 0;
        margin-bottom: 8px;
        min-width: auto;
    }
    
    .resource-actions,
    .paper-actions,
    .document-actions {
        flex-direction: column;
        gap: 8px;
    }
    
    .modal-title {
        font-size: 1rem;
    }
}

/* Loading states */
.pdf-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 200px;
    color: #666;
}

.pdf-error {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 200px;
    color: #dc3545;
    text-align: center;
}

/* Animation for buttons */
.btn-preview,
.btn-download,
.btn-view-paper,
.btn-view-document {
    position: relative;
    overflow: hidden;
}

.btn-preview:active,
.btn-download:active,
.btn-view-paper:active,
.btn-view-document:active {
    transform: scale(0.98);
}

/* Hover effects */
.btn-preview:hover,
.btn-view-paper:hover,
.btn-view-document:hover {
    box-shadow: 0 4px 12px rgba(184,134,11,0.3);
}

.btn-download:hover {
    box-shadow: 0 4px 12px rgba(45,80,22,0.3);
}