/**
 * PDF Tool Enhancements Styles
 * Shared styles for enhanced features across all PDF tools
 */

/* ========== Recent Files ========== */
.sd-recent-files {
    background: var(--panel-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 16px;
    margin-top: 15px;
}

.sd-recent-files-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-main);
}

.sd-recent-files-clear {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 12px;
    cursor: pointer;
    padding: 2px 6px;
}

.sd-recent-files-clear:hover {
    color: var(--accent-blue);
}

.sd-recent-files-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sd-recent-file {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: rgba(15, 23, 42, 0.4);
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
}

.sd-recent-file:hover {
    background: rgba(59, 130, 246, 0.1);
}

.sd-recent-file svg {
    color: var(--text-muted);
    flex-shrink: 0;
}

.sd-recent-file-name {
    flex: 1;
    font-size: 13px;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sd-recent-file-size {
    font-size: 11px;
    color: var(--text-muted);
}

/* ========== Progress Indicator ========== */
.sd-progress-overlay {
    position: relative;
    min-height: 120px;
    border-radius: 12px;
    background: var(--panel-bg-strong);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 30px;
}

.sd-progress-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(59, 130, 246, 0.2);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: sd-spin 1s linear infinite;
    margin-bottom: 15px;
}

@keyframes sd-spin {
    to { transform: rotate(360deg); }
}

.sd-progress-message {
    font-size: 14px;
    color: var(--text-main);
    margin-bottom: 15px;
}

.sd-progress-stats {
    width: 100%;
    max-width: 300px;
}

.sd-progress-bar {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
}

.sd-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    transition: width 0.3s ease;
}

.sd-progress-details {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
}

/* ========== Thumbnail Previews ========== */
.sd-thumbnail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 12px;
    margin-top: 15px;
}

.sd-thumbnail-item {
    position: relative;
    background: var(--panel-bg);
    border: 2px solid var(--glass-border);
    border-radius: 8px;
    overflow: hidden;
    cursor: grab;
    transition: transform 0.2s, border-color 0.2s;
}

.sd-thumbnail-item:hover {
    border-color: var(--accent-blue);
    transform: translateY(-2px);
}

.sd-thumbnail-item.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

.sd-thumbnail-item.selected {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.sd-thumbnail-img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
    background: #1a1a2e;
}

.sd-thumbnail-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 8px;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    font-size: 11px;
    color: white;
}

.sd-thumbnail-page-num {
    position: absolute;
    top: 6px;
    left: 6px;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 10px;
}

.sd-thumbnail-actions {
    position: absolute;
    top: 6px;
    right: 6px;
    display: flex;
    gap: 4px;
    opacity: 0;
    transition: opacity 0.2s;
}

.sd-thumbnail-item:hover .sd-thumbnail-actions {
    opacity: 1;
}

.sd-thumbnail-btn {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    border: none;
    background: rgba(0,0,0,0.7);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sd-thumbnail-btn:hover {
    background: rgba(239, 68, 68, 0.9);
}

/* ========== Batch Processing ========== */
.sd-batch-container {
    background: var(--panel-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 20px;
    margin-top: 15px;
}

.sd-batch-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.sd-batch-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
}

.sd-batch-counter {
    font-size: 12px;
    color: var(--text-muted);
    background: rgba(15, 23, 42, 0.6);
    padding: 4px 10px;
    border-radius: 12px;
}

.sd-batch-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 300px;
    overflow-y: auto;
}

.sd-batch-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: rgba(15, 23, 42, 0.4);
    border-radius: 8px;
    border: 1px solid transparent;
}

.sd-batch-item.pending {
    border-color: var(--glass-border);
}

.sd-batch-item.processing {
    border-color: var(--accent-blue);
    background: rgba(59, 130, 246, 0.1);
}

.sd-batch-item.completed {
    border-color: var(--accent-green);
    background: rgba(34, 197, 94, 0.1);
}

.sd-batch-item.failed {
    border-color: var(--accent-red);
    background: rgba(239, 68, 68, 0.1);
}

.sd-batch-item-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sd-batch-item-info {
    flex: 1;
    min-width: 0;
}

.sd-batch-item-name {
    font-size: 13px;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sd-batch-item-status {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

.sd-batch-item-actions {
    display: flex;
    gap: 6px;
}

.sd-batch-btn {
    padding: 6px 12px;
    font-size: 12px;
    border-radius: 6px;
    border: 1px solid var(--glass-border);
    background: transparent;
    color: var(--text-main);
    cursor: pointer;
    transition: all 0.2s;
}

.sd-batch-btn:hover {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
}

.sd-batch-progress {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--glass-border);
}

.sd-batch-stats {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

/* ========== Keyboard Shortcuts Help ========== */
.sd-shortcuts-help {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}

.sd-shortcuts-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--glass-border);
    background: var(--panel-bg);
    color: var(--text-main);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.sd-shortcuts-toggle:hover {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
}

.sd-shortcuts-panel {
    position: absolute;
    bottom: 50px;
    right: 0;
    width: 280px;
    background: var(--panel-bg-strong);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    display: none;
}

.sd-shortcuts-panel.visible {
    display: block;
}

.sd-shortcuts-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--glass-border);
}

.sd-shortcuts-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sd-shortcut-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
}

.sd-shortcut-keys {
    display: flex;
    gap: 4px;
}

.sd-shortcut-key {
    padding: 2px 6px;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    font-family: monospace;
    font-size: 11px;
}

.sd-shortcut-desc {
    color: var(--text-muted);
}

/* ========== Undo/Redo Controls ========== */
.sd-undo-controls {
    display: flex;
    gap: 6px;
    align-items: center;
}

.sd-undo-btn {
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid var(--glass-border);
    background: transparent;
    color: var(--text-main);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    transition: all 0.2s;
}

.sd-undo-btn:hover:not(:disabled) {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
}

.sd-undo-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.sd-undo-btn svg {
    width: 14px;
    height: 14px;
}

/* ========== Enhanced Dropzone ========== */
.sd-dropzone-active {
    border-color: var(--accent-blue) !important;
    background: rgba(59, 130, 246, 0.1) !important;
}

/* ========== Page Range Input ========== */
.sd-page-range {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.sd-page-range input {
    padding: 8px 12px;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    color: var(--text-main);
    font-size: 13px;
    min-width: 120px;
}

.sd-page-range-hint {
    font-size: 11px;
    color: var(--text-muted);
}

/* ========== Export Options ========== */
.sd-export-options {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 10px;
}

.sd-export-option {
    padding: 8px 16px;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    background: transparent;
    color: var(--text-main);
    cursor: pointer;
    font-size: 13px;
    transition: all 0.2s;
}

.sd-export-option:hover {
    border-color: var(--accent-blue);
    background: rgba(59, 130, 246, 0.1);
}

.sd-export-option.active {
    border-color: var(--accent-blue);
    background: rgba(59, 130, 246, 0.2);
}

/* ========== Signature Pad Enhancements ========== */
.sd-signature-pad {
    background: white;
    border-radius: 8px;
    touch-action: none;
}

.sd-signature-templates {
    display: flex;
    gap: 10px;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--glass-border);
}

.sd-signature-template {
    width: 80px;
    height: 50px;
    border: 2px solid var(--glass-border);
    border-radius: 6px;
    background: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.2s;
}

.sd-signature-template:hover {
    border-color: var(--accent-blue);
}

.sd-signature-template img {
    max-width: 100%;
    max-height: 100%;
}

/* ========== Responsive Adjustments ========== */
@media (max-width: 768px) {
    .sd-thumbnail-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 8px;
    }
    
    .sd-batch-list {
        max-height: 250px;
    }
    
    .sd-shortcuts-help {
        bottom: 10px;
        right: 10px;
    }
    
    .sd-shortcuts-panel {
        width: 260px;
        right: -10px;
    }
}

/* ========== Animation Utilities ========== */
.sd-fade-in {
    animation: sd-fade-in 0.3s ease;
}

@keyframes sd-fade-in {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.sd-slide-in {
    animation: sd-slide-in 0.3s ease;
}

@keyframes sd-slide-in {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}