/* PDF Preview Modal Styles */
.pdf-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    animation: fadeIn 0.3s ease-out;
}

.pdf-modal.active {
    display: flex;
    justify-content: center;
    align-items: center;
}

.pdf-modal-content {
    background: white;
    border-radius: 1rem;
    width: 90%;
    max-width: 1200px;
    height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.3s ease-out;
}

.pdf-modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pdf-modal-header h3 {
    margin: 0;
    color: #1f2937;
    font-size: 1.25rem;
}

.pdf-modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: #6b7280;
    line-height: 1;
    padding: 0;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.5rem;
    transition: all 0.15s;
}

.pdf-modal-close:hover {
    background: #f3f4f6;
    color: #1f2937;
}

.pdf-modal-body {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
}

.pdf-canvas-wrapper {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #f3f4f6;
    border-radius: 0.5rem;
    overflow: auto;
}

#modal-pdf-canvas {
    max-width: 100%;
    height: auto;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.pdf-modal-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
    padding: 1rem;
    background: #f9fafb;
    border-radius: 0.5rem;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Preview button styles */
.btn-preview {
    background: var(--info-color);
    color: white;
    margin-top: 1rem;
}

.btn-preview:hover {
    background: #2563eb;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}