/* delete-pdf-pages.css - Comprehensive Styles for Delete PDF Pages Tool */

/* ===== STEP 2: PAGE SELECTION - SIDE-BY-SIDE SPLIT LAYOUT ===== */
.step2-split-layout {
    display: flex;
    gap: 20px;
    margin-top: 20px;
    min-height: 600px;
}

/* Left Panel: Page Thumbnails */
.left-panel {
    flex: 2;
    min-width: 400px;
    
    border-radius: 10px;
    padding: 20px;
   
    border: var(--benefit-card-border);
    display: flex;
    flex-direction: column;
}

/* Right Panel: Controls and Options */
.right-panel {
    flex: 1;
    min-width: 320px;
   
    border-radius: 10px;
    padding: 20px;
   
    border: var(--benefit-card-border);
    display: flex;
    flex-direction: column;
}

/* Panel Headers */
.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: var(--benefit-card-border);
}

.panel-header h3 {
    margin: 0;
    color: var(--primary-light);
    font-size: 1.2rem;
    font-weight: 600;
}

.selection-summary {
    background: rgba(106, 156, 137, 0.1);
    padding: 6px 12px;
    border-radius: 20px;
    border: 1px solid rgba(106, 156, 137, 0.3);
}

.selected-count {
    font-size: 0.9rem;
    color: var(--primary-medium);
    font-weight: 500;
}

.file-info {
    display: flex;
    flex-direction: column;
    
    gap: 4px;
}

.file-info .preview-filename {
    font-size: 0.9rem;
    color: var(--dark-text);
    font-weight: 500;
}

.file-info .page-count {
    font-size: 0.8rem;
    color: var(--primary-light);
    opacity: 0.8;
}

/* Selection Controls */
.selection-controls {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.btn-sm {
    padding: 8px 12px;
    font-size: 0.85rem;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
    color: var(--dark-text);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
}

.btn-sm:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.btn-sm:active {
    transform: translateY(0);
}

/* Page Thumbnails Container */
.page-thumbnails-container {
   
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.page-thumbnails {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 12px;
    overflow-y: auto;
    padding: 10px 0;
    max-height: 500px;
}

/* Control Sections */
.control-sections {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.control-section {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    padding: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.control-section h4 {
    margin: 0 0 12px 0;
    color: var(--primary-light);
    font-size: 1rem;
    font-weight: 600;
}

/* File Tabs Section */
.file-tabs-section {
    display: none; /* Hidden by default, shown for batch mode */
}

.file-tabs {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.file-tab {
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: var(--dark-text);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
    text-align: left;
    font-weight: 500;
}

.file-tab:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.file-tab.active {
    background: var(--primary-medium);
    color: white;
    border-color: var(--primary-medium);
}

/* Action Buttons - Outside the panels */
.step2-action-buttons {
    margin-top: 20px;
    display: flex;
    gap: 12px;
    justify-content: center;
}


/* Legacy action buttons for backward compatibility */
.action-buttons {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    gap: 12px;
    justify-content: space-between;
}

.action-buttons .btn {
    flex: 1;
}

/* Legacy styles for backward compatibility */
.pdf-arrangement-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 20px;
}

.arrangement-options {
    flex: 1;
    min-width: 300px;
    background: var(--tool-card-bg);
    border-radius: 10px;
    padding: 20px;
    box-shadow: var(--tool-card-shadow);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.pdf-preview-container {
    flex: 2;
    min-width: 300px;
}

.page-selection-mode h3,
.range-selection h3,
.pdf-preview-container h3 {
    margin-top: 0;
    color: var(--primary-light);
    font-size: 1.2rem;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 15px;
}

/* Mode Selection Styles */
.mode-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 15px 0;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    padding: 12px 16px;
    border-radius: 8px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.radio-option:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

.radio-option input[type="radio"] {
    display: none;
}

.radio-custom {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--primary-light);
    border-radius: 50%;
    position: relative;
    transition: var(--transition);
}

.radio-option input:checked + .radio-custom {
    border-color: var(--primary-medium);
    background: var(--primary-medium);
}

.radio-option input:checked + .radio-custom::after {
    content: '';
    position: absolute;
    top: 4px;
    left: 4px;
    width: 10px;
    height: 10px;
    background: white;
    border-radius: 50%;
}

.radio-label {
    font-weight: 500;
    color: var(--dark-text);
    flex: 1;
}

.mode-description {
    margin-top: 15px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 6px;
    border-left: 3px solid var(--primary-medium);
}

.mode-display {
    font-weight: 600;
    color: var(--primary-medium);
    margin: 0 0 5px 0;
    font-size: 0.95rem;
}

.mode-description-text {
    margin: 0;
    color: var(--primary-light);
    opacity: 0.9;
    font-size: 0.9rem;
    line-height: 1.4;
}

/* Range Input Styles */
.range-selection {
    margin-top: 25px;
}

.range-input-container {
    display: flex;
    gap: 10px;
    margin: 15px 0 10px;
    align-items: center;
    flex-direction: column;
}

.range-input {
    flex: 1;
    padding: 12px 15px;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.1);
    color: var(--dark-text);
    font-size: 1rem;
    transition: var(--transition);
}

.range-input:focus {
    outline: none;
    border-color: var(--primary-medium);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 2px rgba(106, 156, 137, 0.2);
}

.range-input.error {
    border-color: #dc3545;
    background: rgba(220, 53, 69, 0.1);
}

.btn-icon {
    padding: 12px 16px;
    background: var(--primary-medium);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    white-space: nowrap;
}

.btn-icon:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.hint {
    font-size: 0.85rem;
    color: var(--primary-light);
    opacity: 0.8;
    margin-top: 8px;
    line-height: 1.4;
}

/* PDF Preview Styles */
.pdf-preview {
    background: var(--tool-card-bg);
    border-radius: 10px;
    padding: 20px;
    box-shadow: var(--tool-card-shadow);
    border: 1px solid rgba(255, 255, 255, 0.1);
    height: fit-content;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.preview-filename {
    font-weight: 600;
    color: var(--primary-light);
    font-size: 1.1rem;
}

.page-count {
    color: var(--primary-light);
    opacity: 0.8;
    font-size: 0.9rem;
}

.no-pages-message {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem 2rem;
    color: #666;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    border: 2px dashed rgba(255, 255, 255, 0.1);
}

.no-pages-message i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.no-pages-message p {
    margin: 0;
    font-size: 1rem;
    opacity: 0.7;
}

.page-thumb {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid transparent;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.05);
    cursor: pointer;
}

.page-thumb:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-light);
}

.page-thumb.selected {
    border-color: var(--primary-medium);
    background: rgba(106, 156, 137, 0.1);
    box-shadow: 0 0 0 2px rgba(106, 156, 137, 0.2);
}

.page-thumb.selected .thumbnail {
    background: rgba(106, 156, 137, 0.15);
    color: var(--primary-medium);
}

.thumbnail {
    aspect-ratio: 1/1.414; /* Standard paper ratio */
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-light);
    border-radius: 6px;
    position: relative;
    transition: var(--transition);
}

.thumbnail::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent 50%, rgba(106, 156, 137, 0.1) 100%);
    border-radius: 6px;
}

/* Page action buttons removed - thumbnails are now clickable */

/* ===== STEP 3: DOWNLOAD ===== */
.download-summary {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin: 25px 0;
}

.summary-card {
    flex: 1;
    min-width: 300px;
    background: var(--tool-card-bg);
    border-radius: 10px;
    padding: 25px;
    display: flex;
    gap: 20px;
    align-items: center;
    box-shadow: var(--tool-card-shadow);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.summary-icon {
    font-size: 3rem;
    color: var(--primary-medium);
    opacity: 0.9;
}

.summary-details {
    flex: 1;
}

.summary-details h3 {
    margin: 0 0 10px;
    color: var(--primary-light);
    font-size: 1.3rem;
}

.filename {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--dark-text);
    font-weight: 500;
    word-break: break-word;
}

.file-meta {
    display: flex;
    gap: 20px;
    font-size: 0.9rem;
    color: var(--primary-light);
    opacity: 0.9;
    flex-wrap: wrap;
}

.file-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.file-meta i {
    font-size: 1rem;
}

.processing-stats {
    flex: 1;
    min-width: 300px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 15px;
}

.stat-item {
    background: var(--tool-card-bg);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    box-shadow: var(--tool-card-shadow);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.stat-value {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary-medium);
    margin-bottom: 8px;
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--primary-light);
    opacity: 0.8;
    font-weight: 500;
}

.download-actions {
    text-align: center;
    margin: 30px 0;
}

.download-btn {
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    background: var(--primary-medium);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 12px rgba(106, 156, 137, 0.3);
}

.download-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(106, 156, 137, 0.4);
}

.download-btn:active {
    transform: translateY(0);
}

/* Button Styles */
.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-medium);
    color: var(--primary-medium);
    padding: 12px 24px;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-outline:hover {
    background: var(--primary-medium);
    color: white;
    transform: translateY(-1px);
}

.new-file-btn {
    background: transparent;
    border: 2px solid var(--primary-light);
    color: var(--primary-light);
}

.new-file-btn:hover {
    background: var(--primary-light);
    color: var(--dark-bg);
}

/* Error Message Styles */
.error-message {
    color: #dc3545;
    font-size: 0.85rem;
    margin-top: 0.25rem;
    display: none;
}

.range-input.error + .error-message {
    display: block;
}

/* Loading States */
.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.btn:disabled:hover {
    transform: none !important;
    box-shadow: none !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .step2-split-layout {
        flex-direction: column;
        gap: 15px;
    }

    .left-panel,
    .right-panel {
        min-width: 100%;
    }

    .page-thumbnails {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
        max-height: 300px;
    }

    .selection-controls {
        justify-content: center;
    }

    .btn-sm {
        flex: 1;
        justify-content: center;
    }

    .step2-action-buttons {
        flex-direction: column;
    }

    .step2-action-buttons .btn {
        width: 100%;
    }

    .action-buttons {
        flex-direction: column;
    }

    .action-buttons .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .page-thumbnails {
        grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
        gap: 8px;
    }
    
    .stat-value {
        font-size: 1.8rem;
    }
    
    .summary-icon {
        font-size: 2.5rem;
    }
}

/* Light Mode Adjustments */
.light-mode .arrangement-options,
.light-mode .pdf-preview,
.light-mode .summary-card,
.light-mode .stat-item {
    background: var(--light-bg);
    border-color: rgba(0, 0, 0, 0.1);
}

.light-mode .range-input {
    background: rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 0, 0, 0.2);
    color: var(--light-text);
}

.light-mode .thumbnail {
    background: rgba(0, 0, 0, 0.05);
    color: var(--primary-dark);
}

.light-mode .btn-outline {
    border-color: var(--primary-dark);
    color: var(--primary-dark);
}

/* Animation Enhancements */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-thumb {
    animation: fadeIn 0.3s ease-out;
}

.page-thumb:nth-child(1) { animation-delay: 0.1s; }
.page-thumb:nth-child(2) { animation-delay: 0.2s; }
.page-thumb:nth-child(3) { animation-delay: 0.3s; }
.page-thumb:nth-child(4) { animation-delay: 0.4s; }
.page-thumb:nth-child(5) { animation-delay: 0.5s; }
.page-thumb:nth-child(6) { animation-delay: 0.6s; }
.page-thumb:nth-child(7) { animation-delay: 0.7s; }
.page-thumb:nth-child(8) { animation-delay: 0.8s; }
.page-thumb:nth-child(9) { animation-delay: 0.9s; }
.page-thumb:nth-child(10) { animation-delay: 1.0s; }

/* Focus States for Accessibility */
.radio-option:focus-within {
    outline: 2px solid var(--primary-medium);
    outline-offset: 2px;
}

.page-thumb:focus {
    outline: 2px solid var(--primary-medium);
    outline-offset: 2px;
}

.range-input:focus {
    outline: 2px solid var(--primary-medium);
    outline-offset: 2px;
}