/* El Kitabı Detay - PDF Viewer */
.pdf-viewer-wrapper {
    padding: 40px 0 60px;
}

.pdf-viewer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
}

.pdf-viewer-header h1 {
    font-family: 'Roboto Slab', serif;
    font-size: 1.5rem;
    font-weight: 300;
    color: #32118e;
    margin: 0;
}

.pdf-viewer-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.pdf-viewer-actions .btn-download {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #5424d7;
    color: #fff;
    padding: 10px 22px;
    border-radius: 20px;
    font-family: 'Exo 2', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: .2s ease-in all;
    border: none;
    cursor: pointer;
}

.pdf-viewer-actions .btn-download:hover {
    background: #00b300;
    color: #fff;
}

.pdf-viewer-actions .btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: #5424d7;
    padding: 10px 22px;
    border-radius: 20px;
    font-family: 'Exo 2', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: .2s ease-in all;
    border: 2px solid #5424d7;
}

.pdf-viewer-actions .btn-back:hover {
    background: #5424d7;
    color: #fff;
}

/* PDF Canvas Container */
.pdf-viewer-container {
    background: #e8e6f0;
    border-radius: 15px;
    padding: 20px;
    min-height: 600px;
    position: relative;
}

.pdf-canvas-wrapper {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    overflow: hidden;
}

.pdf-canvas-wrapper canvas {
    max-width: 100%;
    height: auto !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    border-radius: 4px;
}

/* PDF Controls */
.pdf-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    padding: 15px 0 5px;
    flex-wrap: wrap;
}

.pdf-controls button {
    background: #5424d7;
    color: #fff;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1rem;
    cursor: pointer;
    transition: .2s ease-in all;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pdf-controls button:hover {
    background: #371497;
}

.pdf-controls button:disabled {
    background: #c4c0d8;
    cursor: not-allowed;
}

.pdf-controls .page-info {
    font-family: 'Poppins', sans-serif;
    font-size: 0.9rem;
    color: #32118e;
    min-width: 100px;
    text-align: center;
}

.pdf-controls .page-input {
    width: 50px;
    text-align: center;
    border: 2px solid #5424d7;
    border-radius: 8px;
    padding: 5px;
    font-family: 'Poppins', sans-serif;
    font-size: 0.9rem;
    color: #32118e;
    outline: none;
}

.pdf-controls .page-input:focus {
    border-color: #06e5b9;
}

.pdf-controls .zoom-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 20px;
    padding-left: 20px;
    border-left: 2px solid #d8d5e8;
}

.pdf-controls .zoom-controls button {
    width: 34px;
    height: 34px;
    font-size: 0.85rem;
}

.pdf-controls .zoom-level {
    font-family: 'Poppins', sans-serif;
    font-size: 0.8rem;
    color: #5424d7;
    min-width: 45px;
    text-align: center;
}

/* Loading indicator */
.pdf-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    color: #5424d7;
    font-family: 'Poppins', sans-serif;
}

.pdf-loading i {
    font-size: 2.5rem;
    margin-bottom: 15px;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

/* Responsive */
@media (max-width: 768px) {
    .pdf-viewer-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .pdf-viewer-header h1 {
        font-size: 1.2rem;
    }

    .pdf-controls .zoom-controls {
        margin-left: 0;
        padding-left: 0;
        border-left: none;
        margin-top: 10px;
        padding-top: 10px;
        border-top: 2px solid #d8d5e8;
    }

    .pdf-viewer-container {
        padding: 10px;
    }
}