/**
 * PDF Tools - Tool Page Styles
 * Styles for individual tool pages
 */

/* Tool Page Layout */
.tool-page {
    min-height: 100vh;
    padding: 2rem 0 4rem;
    background: linear-gradient(180deg, var(--color-primary-light) 0%, var(--color-bg-primary) 300px);
}

/* Page Header */
.page-header {
    text-align: center;
    margin-bottom: 3rem;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.page-icon {
    width: 50px;
    height: 50px;
    color: var(--color-primary);
}

.page-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Tool Container */
.tool-container {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 3rem;
}

/* Upload Area */
.upload-area {
    border: 3px dashed var(--color-border);
    border-radius: var(--radius-md);
    padding: 4rem 2rem;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    background: var(--color-bg-secondary);
}

.upload-area.drag-over {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.upload-icon {
    width: 80px;
    height: 80px;
    color: var(--color-primary);
    margin: 0 auto 1.5rem;
}

.upload-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.upload-description {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.upload-hint {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin-bottom: 2rem;
}

/* File List */
.file-list-container {
    margin-top: 2rem;
}

.file-list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.file-list-header h3 {
    font-size: 1.375rem;
    font-weight: 700;
}

.file-list {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    padding: 1rem;
    max-height: 400px;
    overflow-y: auto;
}

.file-item {
    background: white;
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: move;
}

.file-item:last-child {
    margin-bottom: 0;
}

.file-item:hover {
    box-shadow: var(--shadow-md);
}

.file-item.dragging {
    opacity: 0.5;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.file-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary-light), white);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.file-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

.file-details {
    flex: 1;
}

.file-name {
    font-weight: 600;
    margin-bottom: 0.25rem;
    word-break: break-word;
}

.file-size {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.file-actions {
    display: flex;
    gap: 0.5rem;
}

.file-handle {
    cursor: move;
    color: var(--color-text-secondary);
    padding: 0.5rem;
}

.file-handle svg {
    width: 20px;
    height: 20px;
}

.file-preview-container {
    width: 80px;
    min-width: 80px;
    height: 104px;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
}

.file-preview-canvas {
    max-width: 100%;
    max-height: 100%;
    display: block;
}

.btn-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.btn-icon:hover {
    background: var(--color-error);
    color: white;
}

.btn-icon svg {
    width: 18px;
    height: 18px;
}

.file-list-actions {
    margin-top: 1.5rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Processing Status */
.processing-status {
    text-align: center;
    padding: 3rem 2rem;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1.5rem;
}

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

.processing-text {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--color-border);
    border-radius: 100px;
    overflow: hidden;
    margin-bottom: 0.75rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
    width: 0%;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    font-weight: 600;
}

/* Result Container */
.result-container {
    text-align: center;
    padding: 3rem 2rem;
}

.result-success {
    max-width: 500px;
    margin: 0 auto;
}

.result-icon {
    width: 80px;
    height: 80px;
    color: var(--color-success);
    margin: 0 auto 1.5rem;
}

.result-success h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--color-success);
}

.result-success p {
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.result-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Error Container */
.error-container {
    text-align: center;
    padding: 3rem 2rem;
}

.error-message {
    max-width: 500px;
    margin: 0 auto;
}

.error-icon {
    width: 80px;
    height: 80px;
    color: var(--color-error);
    margin: 0 auto 1.5rem;
}

.error-message h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--color-error);
}

.error-message p {
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

/* Tool Features */
.tool-features {
    max-width: 1000px;
    margin: 4rem auto 0;
    text-align: center;
}

.tool-features h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2.5rem;
}

.feature-card {
    background: white;
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-card svg {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Settings Panel */
.settings-panel {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-top: 1.5rem;
}

.settings-panel h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.setting-item {
    margin-bottom: 1.5rem;
}

.setting-item:last-child {
    margin-bottom: 0;
}

.setting-label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.setting-input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: var(--transition);
}

.setting-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.setting-description {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: 0.25rem;
}

/* Range Slider */
input[type="range"] {
    width: 100%;
    height: 8px;
    background: var(--color-border);
    border-radius: 100px;
    outline: none;
    -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

/* Checkbox and Radio */
.checkbox-container,
.radio-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.checkbox-container input[type="checkbox"],
.radio-container input[type="radio"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

/* Responsive Design */
@media (max-width: 768px) {
    .tool-container {
        padding: 2rem 1.5rem;
    }

    .page-title {
        font-size: 2rem;
    }

    .upload-area {
        padding: 3rem 1.5rem;
    }

    .file-list-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .file-list-actions {
        flex-direction: column;
        width: 100%;
    }

    .file-list-actions .btn {
        width: 100%;
    }

    .result-actions {
        width: 100%;
    }

    .result-actions .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 1.75rem;
        flex-direction: column;
        gap: 0.5rem;
    }

    .page-icon {
        width: 40px;
        height: 40px;
    }

    .upload-icon {
        width: 60px;
        height: 60px;
    }

    .file-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .file-actions {
        width: 100%;
        justify-content: flex-end;
    }
}

/* Scrollbar Styling */
.file-list::-webkit-scrollbar {
    width: 8px;
}

.file-list::-webkit-scrollbar-track {
    background: var(--color-border);
    border-radius: 100px;
}

.file-list::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 100px;
}

.file-list::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-dark);
}

/* Password Input Styles - For PDF Unlock Tool */
.password-input-container {
    max-width: 900px;
    margin: 0 auto;
}

.file-info-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2rem;
}

.file-info-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 2rem;
}

.password-input-wrapper {
    margin-bottom: 2rem;
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.password-field {
    position: relative;
    display: flex;
    align-items: center;
}

.form-input {
    width: 100%;
    padding: 0.875rem 3rem 0.875rem 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--color-bg-primary);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: white;
    box-shadow: 0 0 0 3px rgba(255, 145, 77, 0.1);
}

.password-toggle {
    position: absolute;
    right: 0.75rem;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.password-toggle:hover {
    color: var(--color-primary);
}

.password-toggle svg {
    width: 20px;
    height: 20px;
}

.form-hint {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* How It Works Section */
.how-it-works {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid var(--color-border);
}

.how-it-works h2 {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: var(--color-text-primary);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.step-card {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, white 100%);
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    transition: var(--transition);
}

.step-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.step-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--color-text-primary);
}

.step-card p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Responsive adjustments for password input */
@media (max-width: 768px) {
    .file-info-header {
        flex-direction: column;
        text-align: center;
    }

    .steps-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   PDF Viewer Component Styles
   ============================================ */

/* PDF Viewer Container */
.pdf-viewer-component {
    width: 100%;
    margin: 0 auto;
}

/* PDF Viewer Controls */
.pdf-viewer-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 0;
}

.pdf-viewer-controls-left,
.pdf-viewer-controls-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.pdf-page-count {
    font-weight: 600;
    color: var(--color-text-primary);
    font-size: 0.95rem;
}

.pdf-selection-count {
    display: none;
    padding: 0.25rem 0.75rem;
    background: var(--color-primary);
    color: white;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 600;
}

.pdf-zoom-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid var(--color-border);
    background: white;
    color: var(--color-text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.pdf-zoom-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.pdf-zoom-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pdf-zoom-btn svg {
    width: 18px;
    height: 18px;
}

.pdf-zoom-level {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    min-width: 45px;
    text-align: center;
}

/* PDF Viewer Grid */
.pdf-viewer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.5rem;
    padding: 2rem;
    background: var(--color-bg-secondary);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    min-height: 300px;
}

/* PDF Page Card */
.pdf-page-card {
    background: white;
    border: 3px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.pdf-page-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.pdf-page-card.selected {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, rgba(255, 145, 77, 0.08), rgba(255, 145, 77, 0.03));
}

/* Page Checkbox */
.pdf-page-checkbox {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 10;
}

.pdf-page-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.pdf-page-checkbox label {
    display: none;
}

/* Page Preview */
.pdf-page-preview {
    width: 100%;
    aspect-ratio: 8.5/11;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.pdf-page-canvas {
    max-width: 100%;
    max-height: 100%;
    display: block;
    margin: 0 auto;
}

.pdf-page-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    opacity: 0.3;
}

.pdf-page-placeholder svg {
    width: 48px;
    height: 48px;
}

/* Selected Badge */
.pdf-page-selected-badge {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--shadow-md);
}

.pdf-page-selected-badge svg {
    width: 18px;
    height: 18px;
}

.pdf-page-card.selected .pdf-page-selected-badge {
    display: flex;
}

/* Page Number */
.pdf-page-number {
    font-weight: 700;
    color: var(--color-text-primary);
    text-align: center;
    font-size: 0.875rem;
}

/* Loading State */
.pdf-viewer-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    background: var(--color-bg-secondary);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    min-height: 300px;
}

.pdf-viewer-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

.pdf-viewer-loading p {
    color: var(--color-text-secondary);
    font-weight: 600;
}

/* Enhanced Pages Grid for Removal Tool */
.pages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.page-card {
    background: white;
    border: 3px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.page-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

/* Default selected style - red for page remover */
.page-card.selected {
    border-color: var(--color-error);
    background: rgba(239, 68, 68, 0.05);
}

.page-card.selected::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(239, 68, 68, 0.1);
    border-radius: var(--radius-md);
    pointer-events: none;
}

/* Green theme for extract pages tool */
.tool-page:has(h1:contains("Extract")) .page-card.selected,
body:has(title:contains("Extract")) .page-card.selected {
    border-color: var(--color-success);
    background: rgba(18, 185, 129, 0.05);
}

body:has(title:contains("Extract")) .page-card.selected::after {
    background: rgba(18, 185, 129, 0.1);
}

body:has(title:contains("Extract")) .selected-badge {
    background: var(--color-success);
}

.page-preview {
    width: 100%;
    aspect-ratio: 8.5/11;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.page-preview canvas {
    max-width: 100%;
    max-height: 100%;
    display: block;
}

.selected-badge {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    width: 32px;
    height: 32px;
    background: var(--color-error);
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
}

.page-card.selected .selected-badge {
    display: flex;
}

.page-number {
    font-weight: 700;
    color: var(--color-text-primary);
    text-align: center;
}

.page-controls {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 0.5rem;
}

.page-btn {
    width: 32px;
    height: 32px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.page-btn:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.page-btn svg {
    width: 18px;
    height: 18px;
    color: var(--color-text-primary);
}

.page-btn:hover svg {
    color: var(--color-primary);
}

/* Responsive Design for PDF Viewer */
@media (max-width: 1024px) {
    .pdf-viewer-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 1.25rem;
        padding: 1.5rem;
    }
}

@media (max-width: 768px) {
    .pdf-viewer-controls {
        padding: 0.875rem 1rem;
    }

    .pdf-viewer-grid,
    .pages-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 1rem;
        padding: 1.25rem;
    }

    .pdf-viewer-controls-left,
    .pdf-viewer-controls-right {
        gap: 0.5rem;
    }

    .pdf-page-count,
    .pdf-selection-count {
        font-size: 0.85rem;
    }

    .pdf-zoom-btn {
        width: 32px;
        height: 32px;
    }

    .pdf-zoom-btn svg {
        width: 16px;
        height: 16px;
    }
}

@media (max-width: 480px) {
    .pdf-viewer-grid,
    .pages-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 0.875rem;
        padding: 1rem;
    }

    .pdf-page-card,
    .page-card {
        padding: 0.75rem;
    }

    .pdf-viewer-controls {
        flex-direction: column;
        gap: 0.75rem;
        padding: 1rem;
    }

    .pdf-viewer-controls-left {
        width: 100%;
        justify-content: center;
    }

    .pdf-zoom-level {
        display: none;
    }
}