/* Text File Tools - Complete Styles with Light/Dark Theme Support */

/* ===== CSS Variables ===== */
.text-file-tools-container {
    --tft-primary: var(--primary-color, #3498db);
    --tft-secondary: var(--secondary-color, #2ecc71);
    --tft-bg: var(--card-bg-color, #fcfcfc);
    --tft-surface: var(--background-color, #ffffff);
    --tft-text: var(--text-color, #333333);
    --tft-text-muted: #6c757d;
    --tft-border: var(--border-color, rgba(52, 152, 219, 0.1));
    --tft-shadow: var(--box-shadow, 0 4px 6px rgba(0, 0, 0, 0.1));
    --tft-radius: var(--border-radius-md, 8px);
    --tft-radius-lg: var(--border-radius-lg, 16px);
    --tft-transition: var(--transition-fast, 0.2s ease);
    --tft-gradient: linear-gradient(135deg, var(--tft-primary), var(--tft-secondary));
    --tft-success: #27ae60;
    --tft-warning: #f39c12;
    --tft-danger: #e74c3c;
    --tft-info: #3498db;
}

.dark-theme .text-file-tools-container {
    --tft-text-muted: #9ca3af;
    --tft-surface: #1a1d24;
    --tft-bg: #242830;
}

/* ===== Base Container ===== */
.text-file-tools-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem;
    font-family: var(--font-family, 'Inter', sans-serif);
    color: var(--tft-text);
}

/* ===== Header ===== */
.tft-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.1), rgba(var(--secondary-rgb), 0.05));
    border-radius: 16px;
    border: 1px solid rgba(var(--primary-rgb), 0.15);
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.tft-header .header-content {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.tft-header .header-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 16px;
    font-size: 1.75rem;
    color: white;
    box-shadow: 0 8px 24px rgba(var(--primary-rgb), 0.35);
}

.tft-header h2 {
    margin: 0 0 0.25rem 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--tft-text);
}

.tft-header p {
    margin: 0;
    opacity: 0.7;
    font-size: 0.9rem;
    color: var(--tft-text);
}

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

.text-file-tools-container .btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--card-background);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.text-file-tools-container .btn-icon:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: rgba(var(--primary-rgb), 0.05);
}

/* ===== Privacy Notice ===== */
.privacy-notice {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--tft-radius);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    background: linear-gradient(135deg, rgba(39, 174, 96, 0.1), rgba(52, 152, 219, 0.1));
    border: 1px solid rgba(39, 174, 96, 0.2);
    color: var(--tft-success);
}

.dark-theme .privacy-notice {
    background: rgba(39, 174, 96, 0.15);
}

/* ===== Controls ===== */
.tft-controls {
    margin-bottom: 1.5rem;
}

.primary-controls {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 1.5rem;
    align-items: stretch;
    margin-bottom: 1.5rem;
}

.upload-zone {
    padding: 2rem;
    border: 2px dashed var(--tft-border);
    border-radius: var(--tft-radius-lg);
    background: var(--tft-bg);
    text-align: center;
    cursor: pointer;
    transition: var(--tft-transition);
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--tft-primary);
    background: rgba(var(--primary-rgb), 0.05);
}

.upload-content i {
    font-size: 3rem;
    color: var(--tft-primary);
    margin-bottom: 1rem;
    display: block;
}

.upload-content h3 {
    margin: 0 0 0.5rem;
    font-size: 1.25rem;
    color: var(--tft-text);
}

.upload-content p {
    margin: 0 0 1rem;
    color: var(--tft-text-muted);
    font-size: 0.9rem;
}

.supported-formats {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.format-tag {
    padding: 0.25rem 0.75rem;
    background: rgba(var(--primary-rgb), 0.1);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--tft-primary);
    font-weight: 500;
}

.or-divider {
    display: flex;
    align-items: center;
    justify-content: center;
}

.or-divider span {
    padding: 0.5rem 1rem;
    background: var(--tft-bg);
    border-radius: 50%;
    color: var(--tft-text-muted);
    font-weight: 600;
    font-size: 0.9rem;
}

.paste-area {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.paste-area textarea {
    flex: 1;
    min-height: 180px;
    padding: 1rem;
    border: 2px solid var(--tft-border);
    border-radius: var(--tft-radius);
    background: var(--tft-surface);
    color: var(--tft-text);
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.85rem;
    resize: vertical;
}

.paste-area textarea:focus {
    outline: none;
    border-color: var(--tft-primary);
}

/* Sample Texts */
.sample-texts {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    padding: 1rem;
    background: var(--tft-bg);
    border-radius: var(--tft-radius);
    border: 1px solid var(--tft-border);
}

.sample-label {
    font-weight: 600;
    color: var(--tft-text);
    font-size: 0.9rem;
}

/* ===== Buttons ===== */
.text-file-tools-container .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--tft-radius);
    border: none;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--tft-transition);
    text-decoration: none;
}

.text-file-tools-container .btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.text-file-tools-container .btn-primary {
    background: var(--tft-gradient);
    color: #fff !important;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.text-file-tools-container .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
}

.text-file-tools-container .btn-outline {
    background: transparent;
    color: var(--tft-primary);
    border: 2px solid var(--tft-primary);
}

.text-file-tools-container .btn-outline:hover {
    background: var(--tft-primary);
    color: #fff;
}

/* ===== Processing Indicator ===== */
.processing-indicator {
    background: var(--tft-bg);
    border-radius: var(--tft-radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--tft-border);
}

.processing-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.processing-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
}

.progress-bar-container {
    height: 8px;
    background: var(--tft-border);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.progress-bar {
    height: 100%;
    background: var(--tft-gradient);
    width: 0%;
    transition: width 0.3s ease;
}

.processing-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    font-size: 0.9rem;
    color: var(--tft-text-muted);
}

.processing-stats span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ===== File Info Banner ===== */
.file-info-banner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.1), rgba(var(--secondary-rgb), 0.05));
    border-radius: var(--tft-radius);
    margin-bottom: 1.5rem;
    border: 1px solid rgba(var(--primary-rgb), 0.2);
    flex-wrap: wrap;
    gap: 1rem;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.file-info .separator {
    color: var(--tft-text-muted);
}

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

/* ===== Tool Tabs ===== */
.tool-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    padding: 0.5rem;
    background: var(--tft-bg);
    border-radius: var(--tft-radius);
    border: 1px solid var(--tft-border);
    overflow-x: auto;
}

.tool-tab {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border: none;
    background: transparent;
    color: var(--tft-text-muted);
    border-radius: var(--tft-radius);
    cursor: pointer;
    font-weight: 500;
    transition: var(--tft-transition);
    white-space: nowrap;
}

.tool-tab:hover {
    background: var(--tft-surface);
    color: var(--tft-text);
}

.tool-tab.active {
    background: var(--tft-gradient);
    color: #fff;
    box-shadow: 0 2px 8px rgba(52, 152, 219, 0.3);
}

/* ===== Stats Dashboard ===== */
.stats-dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--tft-bg);
    border-radius: var(--tft-radius);
    border: 1px solid var(--tft-border);
    transition: var(--tft-transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--tft-shadow);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: #fff;
    background: var(--tft-gradient);
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--tft-text);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--tft-text-muted);
}

.stat-detail {
    font-size: 0.75rem;
    color: var(--tft-text-muted);
}

/* ===== Tool Panels ===== */
.tool-panel {
    display: none;
}

.tool-panel.active {
    display: block;
}

.panel-header {
    margin-bottom: 1.5rem;
}

.panel-header h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
    font-size: 1.25rem;
    color: var(--tft-text);
}

/* ===== Stats Grid ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.stats-card {
    background: var(--tft-bg);
    border-radius: var(--tft-radius);
    border: 1px solid var(--tft-border);
    overflow: hidden;
}

.stats-card .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--tft-border);
}

.stats-card .card-header h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
    font-size: 1rem;
}

.stats-card .card-body {
    padding: 1.5rem;
}

.filter-select {
    padding: 0.5rem 1rem;
    border: 1px solid var(--tft-border);
    border-radius: var(--tft-radius);
    background: var(--tft-surface);
    color: var(--tft-text);
    font-size: 0.85rem;
}

/* Frequency Chart */
.frequency-chart {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 300px;
    overflow-y: auto;
}

.freq-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.freq-word {
    min-width: 100px;
    font-family: monospace;
    font-size: 0.85rem;
}

.freq-bar {
    flex: 1;
    height: 20px;
    background: var(--tft-border);
    border-radius: 4px;
    overflow: hidden;
}

.freq-bar-fill {
    height: 100%;
    background: var(--tft-gradient);
    transition: width 0.3s ease;
}

.freq-count {
    min-width: 40px;
    text-align: right;
    font-weight: 600;
    font-size: 0.85rem;
}

/* Line Stats */
.line-stats,
.word-stats {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.line-stat,
.word-stat {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem;
    background: var(--tft-surface);
    border-radius: var(--tft-radius);
}

.line-stat .label,
.word-stat .label {
    color: var(--tft-text-muted);
}

.line-stat .value,
.word-stat .value {
    font-weight: 600;
}

/* ===== Transform Grid ===== */
.transform-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.transform-card {
    background: var(--tft-bg);
    border-radius: var(--tft-radius);
    border: 1px solid var(--tft-border);
    padding: 1.5rem;
}

.transform-card h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 0 1rem;
    font-size: 1rem;
}

.transform-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.transform-buttons .btn {
    flex: 1;
    min-width: 120px;
    justify-content: center;
}

/* Transform Modal */
.transform-input-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.transform-input-modal .modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
}

.transform-input-modal .modal-content {
    position: relative;
    background: var(--tft-bg);
    padding: 2rem;
    border-radius: var(--tft-radius-lg);
    min-width: 400px;
    max-width: 90%;
}

.transform-input-modal h4 {
    margin: 0 0 1rem;
}

.transform-input-modal input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--tft-border);
    border-radius: var(--tft-radius);
    background: var(--tft-surface);
    color: var(--tft-text);
    margin-bottom: 1rem;
}

.modal-actions {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
}

/* ===== Search & Replace ===== */
.search-replace-container {
    background: var(--tft-bg);
    border-radius: var(--tft-radius);
    border: 1px solid var(--tft-border);
    padding: 1.5rem;
}

.search-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--tft-border);
    border-radius: var(--tft-radius);
    background: var(--tft-surface);
    color: var(--tft-text);
}

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

.search-input-wrapper {
    position: relative;
}

.match-count {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.8rem;
    color: var(--tft-text-muted);
    background: var(--tft-bg);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.search-options {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

.checkbox-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
}

.checkbox-option input {
    width: 18px;
    height: 18px;
    accent-color: var(--tft-primary);
}

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

.search-results {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--tft-border);
}

.search-results h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 0 1rem;
    font-size: 1rem;
}

.results-list {
    max-height: 300px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.result-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--tft-surface);
    border-radius: var(--tft-radius);
    border-left: 3px solid var(--tft-primary);
    cursor: pointer;
    transition: var(--tft-transition);
}

.result-item:hover {
    background: rgba(var(--primary-rgb), 0.05);
}

.result-line-num {
    min-width: 40px;
    font-weight: 600;
    color: var(--tft-primary);
}

.result-text {
    flex: 1;
    font-family: monospace;
    font-size: 0.85rem;
    word-break: break-word;
}

.result-text mark {
    background: rgba(var(--primary-rgb), 0.3);
    padding: 0.1rem 0.2rem;
    border-radius: 2px;
}

/* ===== Clean Grid ===== */
.clean-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.clean-card {
    background: var(--tft-bg);
    border-radius: var(--tft-radius);
    border: 1px solid var(--tft-border);
    padding: 1.5rem;
}

.clean-card h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 0 1rem;
    font-size: 1rem;
}

.clean-options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.clean-actions {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
}

/* ===== Sort & Filter ===== */
.sort-filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.sort-card,
.filter-card,
.dedupe-card,
.length-filter-card {
    background: var(--tft-bg);
    border-radius: var(--tft-radius);
    border: 1px solid var(--tft-border);
    padding: 1.5rem;
}

.sort-card h4,
.filter-card h4,
.dedupe-card h4,
.length-filter-card h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 0 1rem;
    font-size: 1rem;
}

.sort-options,
.filter-options,
.length-options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.sort-group,
.filter-group,
.length-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.sort-group label,
.filter-group label,
.length-group label {
    font-size: 0.85rem;
    font-weight: 500;
}

.sort-group select,
.filter-group select,
.filter-group input,
.length-group input {
    padding: 0.5rem 1rem;
    border: 1px solid var(--tft-border);
    border-radius: var(--tft-radius);
    background: var(--tft-surface);
    color: var(--tft-text);
}

.dedupe-options {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.dupe-count {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding: 0.75rem;
    background: rgba(var(--primary-rgb), 0.1);
    border-radius: var(--tft-radius);
    font-size: 0.9rem;
}

/* ===== Compare ===== */
.compare-container {
    background: var(--tft-bg);
    border-radius: var(--tft-radius);
    border: 1px solid var(--tft-border);
    padding: 1.5rem;
}

.compare-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.compare-input {
    display: flex;
    flex-direction: column;
}

.compare-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.compare-header h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
    font-size: 0.95rem;
}

.compare-input textarea {
    flex: 1;
    min-height: 200px;
    padding: 1rem;
    border: 2px solid var(--tft-border);
    border-radius: var(--tft-radius);
    background: var(--tft-surface);
    color: var(--tft-text);
    font-family: monospace;
    font-size: 0.85rem;
    resize: vertical;
}

.compare-options {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.diff-results {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--tft-border);
}

.diff-summary {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.diff-stat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--tft-radius);
    font-size: 0.9rem;
}

.diff-stat.added {
    background: rgba(39, 174, 96, 0.1);
    color: var(--tft-success);
}

.diff-stat.removed {
    background: rgba(231, 76, 60, 0.1);
    color: var(--tft-danger);
}

.diff-stat.modified {
    background: rgba(243, 156, 18, 0.1);
    color: var(--tft-warning);
}

.diff-output {
    max-height: 400px;
    overflow-y: auto;
    font-family: monospace;
    font-size: 0.85rem;
}

.diff-line {
    padding: 0.25rem 1rem;
    display: flex;
    gap: 0.5rem;
}

.diff-line.added {
    background: rgba(39, 174, 96, 0.15);
}

.diff-line.removed {
    background: rgba(231, 76, 60, 0.15);
}

.diff-line.modified {
    background: rgba(243, 156, 18, 0.15);
}

.diff-line-num {
    min-width: 40px;
    color: var(--tft-text-muted);
}

/* ===== Extract ===== */
.extract-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.quick-extracts,
.custom-extract {
    background: var(--tft-bg);
    border-radius: var(--tft-radius);
    border: 1px solid var(--tft-border);
    padding: 1.5rem;
}

.quick-extracts h4,
.custom-extract h4 {
    margin: 0 0 1rem;
    font-size: 1rem;
}

.extract-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.custom-extract-form {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.custom-extract-form input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid var(--tft-border);
    border-radius: var(--tft-radius);
    background: var(--tft-surface);
    color: var(--tft-text);
}

.pattern-presets {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
}

.preset-label {
    font-size: 0.85rem;
    color: var(--tft-text-muted);
}

.preset-btn {
    padding: 0.35rem 0.75rem;
    border: 1px solid var(--tft-border);
    border-radius: 20px;
    background: var(--tft-surface);
    color: var(--tft-text);
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--tft-transition);
}

.preset-btn:hover {
    border-color: var(--tft-primary);
    color: var(--tft-primary);
}

.extract-results {
    background: var(--tft-bg);
    border-radius: var(--tft-radius);
    border: 1px solid var(--tft-border);
    padding: 1.5rem;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.results-header h4 {
    margin: 0;
    font-size: 1rem;
}

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

#extract-results-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    max-height: 300px;
    overflow-y: auto;
}

.extract-item {
    padding: 0.5rem 1rem;
    background: var(--tft-surface);
    border: 1px solid var(--tft-border);
    border-radius: var(--tft-radius);
    font-family: monospace;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--tft-transition);
}

.extract-item:hover {
    border-color: var(--tft-primary);
    background: rgba(var(--primary-rgb), 0.05);
}

/* ===== Advanced Grid ===== */
.advanced-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.advanced-card {
    background: var(--tft-bg);
    border-radius: var(--tft-radius);
    border: 1px solid var(--tft-border);
    padding: 1.5rem;
}

.advanced-card.full-width {
    grid-column: 1 / -1;
}

.advanced-card h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 0 0.5rem;
    font-size: 1rem;
}

.card-description {
    margin: 0 0 1rem;
    font-size: 0.85rem;
    color: var(--tft-text-muted);
}

.mask-options,
.split-options,
.encoding-options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.split-group,
.encoding-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.split-group label,
.encoding-group label {
    font-size: 0.85rem;
    font-weight: 500;
}

.split-group select,
.split-group input,
.encoding-group select {
    padding: 0.5rem 1rem;
    border: 1px solid var(--tft-border);
    border-radius: var(--tft-radius);
    background: var(--tft-surface);
    color: var(--tft-text);
}

.inspector-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
}

.space-marker {
    color: #3498db;
}

.tab-marker {
    color: #e74c3c;
}

.newline-marker {
    color: #27ae60;
}

.crlf-marker {
    color: #9b59b6;
}

/* Batch Zone */
.batch-zone {
    padding: 1.5rem;
    border: 2px dashed var(--tft-border);
    border-radius: var(--tft-radius);
    text-align: center;
    cursor: pointer;
    transition: var(--tft-transition);
    margin-bottom: 1rem;
}

.batch-zone:hover {
    border-color: var(--tft-primary);
    background: rgba(var(--primary-rgb), 0.05);
}

.batch-files-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.batch-file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--tft-surface);
    border-radius: var(--tft-radius);
}

.batch-operations {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.batch-operations select {
    flex: 1;
    min-width: 200px;
    padding: 0.75rem 1rem;
    border: 1px solid var(--tft-border);
    border-radius: var(--tft-radius);
    background: var(--tft-surface);
    color: var(--tft-text);
}

/* ===== Editor Section ===== */
.editor-section {
    background: var(--tft-bg);
    border-radius: var(--tft-radius);
    border: 1px solid var(--tft-border);
    margin-top: 1.5rem;
    overflow: hidden;
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--tft-border);
    flex-wrap: wrap;
    gap: 0.5rem;
}

.editor-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
}

.undo-redo-group {
    display: flex;
    gap: 0.25rem;
}

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

.editor-container {
    display: flex;
    position: relative;
}

.line-numbers {
    min-width: 50px;
    padding: 1rem 0.5rem;
    text-align: right;
    font-family: monospace;
    font-size: 0.85rem;
    color: var(--tft-text-muted);
    background: var(--tft-surface);
    border-right: 1px solid var(--tft-border);
    line-height: 1.5;
    user-select: none;
    overflow: hidden;
}

#text-editor {
    flex: 1;
    min-height: 400px;
    padding: 1rem;
    border: none;
    background: var(--tft-surface);
    color: var(--tft-text);
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    resize: vertical;
}

#text-editor:focus {
    outline: none;
}

.editor-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1.5rem;
    border-top: 1px solid var(--tft-border);
    font-size: 0.85rem;
    color: var(--tft-text-muted);
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* ===== Export Bar ===== */
.export-bar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: var(--tft-bg);
    border-radius: var(--tft-radius);
    border: 1px solid var(--tft-border);
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.export-label {
    font-weight: 600;
    color: var(--tft-text);
}

/* ===== Educational Panel ===== */
.edu-panel {
    position: fixed;
    right: 0;
    top: 0;
    bottom: 0;
    width: 400px;
    max-width: 90vw;
    background: var(--tft-bg);
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.edu-panel.open {
    transform: translateX(0);
}

.edu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--tft-border);
}

.edu-header h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
}

.close-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: var(--tft-surface);
    border-radius: 50%;
    cursor: pointer;
    color: var(--tft-text);
    transition: var(--tft-transition);
}

.close-btn:hover {
    background: var(--tft-danger);
    color: #fff;
}

.edu-tabs {
    display: flex;
    padding: 0.5rem;
    gap: 0.5rem;
    border-bottom: 1px solid var(--tft-border);
    overflow-x: auto;
}

.edu-tab {
    padding: 0.5rem 1rem;
    border: none;
    background: transparent;
    color: var(--tft-text-muted);
    border-radius: var(--tft-radius);
    cursor: pointer;
    white-space: nowrap;
    transition: var(--tft-transition);
}

.edu-tab:hover {
    background: var(--tft-surface);
}

.edu-tab.active {
    background: var(--tft-gradient);
    color: #fff;
}

.edu-content {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
}

.edu-content h4 {
    margin: 0 0 1rem;
    color: var(--tft-text);
}

.edu-content p {
    margin: 0 0 1rem;
    line-height: 1.6;
    color: var(--tft-text);
}

.edu-content code {
    background: var(--tft-surface);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.9rem;
}

.edu-content pre {
    background: var(--tft-surface);
    padding: 1rem;
    border-radius: var(--tft-radius);
    overflow-x: auto;
    font-size: 0.85rem;
}

/* ===== Settings Panel ===== */
.settings-panel {
    position: fixed;
    right: 0;
    top: 0;
    bottom: 0;
    width: 350px;
    max-width: 90vw;
    background: var(--tft-bg);
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.settings-panel.open {
    transform: translateX(0);
}

.settings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--tft-border);
}

.settings-header h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
}

.settings-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.setting-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.setting-group select {
    padding: 0.5rem 1rem;
    border: 1px solid var(--tft-border);
    border-radius: var(--tft-radius);
    background: var(--tft-surface);
    color: var(--tft-text);
}

/* ===== Modals ===== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background: var(--tft-bg);
    border-radius: var(--tft-radius-lg);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-content.modal-lg {
    max-width: 900px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--tft-border);
}

.modal-header h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--tft-border);
}

.help-section {
    margin-bottom: 1.5rem;
}

.help-section h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 0 0.5rem;
}

.help-section p {
    margin: 0;
    line-height: 1.6;
    color: var(--tft-text);
}

.shortcuts-list {
    margin: 0;
    padding-left: 1.5rem;
}

.shortcuts-list li {
    margin-bottom: 0.5rem;
}

.shortcuts-list kbd {
    background: var(--tft-surface);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    border: 1px solid var(--tft-border);
    font-family: monospace;
    font-size: 0.85rem;
}

.split-parts {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.split-part {
    background: var(--tft-surface);
    border-radius: var(--tft-radius);
    border: 1px solid var(--tft-border);
    overflow: hidden;
}

.split-part-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: rgba(var(--primary-rgb), 0.05);
    border-bottom: 1px solid var(--tft-border);
}

.split-part-content {
    padding: 1rem;
    max-height: 150px;
    overflow-y: auto;
    font-family: monospace;
    font-size: 0.85rem;
    white-space: pre-wrap;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .primary-controls {
        grid-template-columns: 1fr;
    }

    .or-divider {
        padding: 1rem 0;
    }

    .or-divider span {
        border-radius: var(--tft-radius);
        padding: 0.5rem 2rem;
    }

    .stats-grid,
    .transform-grid,
    .clean-grid,
    .sort-filter-grid,
    .advanced-grid {
        grid-template-columns: 1fr;
    }

    .compare-inputs {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .text-file-tools-container {
        padding: 1rem;
    }

    .tft-header {
        padding: 1rem;
    }

    .tft-header .header-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .tft-header h2 {
        font-size: 1.25rem;
    }

    .tool-tabs {
        padding: 0.25rem;
    }

    .tool-tab {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }

    .tool-tab span {
        display: none;
    }

    .stats-dashboard {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat-card {
        padding: 1rem;
    }

    .stat-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .stat-value {
        font-size: 1.25rem;
    }

    .search-form .form-row {
        grid-template-columns: 1fr;
    }

    .search-actions {
        justify-content: center;
    }

    .file-info-banner {
        flex-direction: column;
        text-align: center;
    }

    .editor-header {
        flex-direction: column;
    }

    .line-numbers {
        display: none;
    }

    .edu-panel,
    .settings-panel {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .stats-dashboard {
        grid-template-columns: 1fr;
    }

    .transform-buttons .btn {
        min-width: 100%;
    }

    .tool-tab i {
        font-size: 1.25rem;
    }

    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tool-panel.active {
    animation: fadeIn 0.3s ease;
}

/* ===== Scrollbar Styling ===== */
.text-file-tools-container ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.text-file-tools-container ::-webkit-scrollbar-track {
    background: var(--tft-surface);
    border-radius: 4px;
}

.text-file-tools-container ::-webkit-scrollbar-thumb {
    background: var(--tft-primary);
    border-radius: 4px;
}

.text-file-tools-container ::-webkit-scrollbar-thumb:hover {
    background: var(--tft-secondary);
}

/* ===== Editor Section ===== */
.editor-section {
    background: var(--tft-bg);
    border-radius: var(--tft-radius);
    border: 1px solid var(--tft-border);
    margin-top: 1.5rem;
    overflow: hidden;
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--tft-border);
    background: rgba(var(--primary-rgb), 0.02);
    flex-wrap: wrap;
    gap: 0.5rem;
}

.editor-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    color: var(--tft-text);
}

.editor-title i {
    color: var(--tft-primary);
}

.undo-redo-group {
    display: flex;
    gap: 0.25rem;
    margin-left: 1rem;
}

.undo-redo-group .btn-icon {
    width: 32px;
    height: 32px;
    padding: 0;
    border-radius: 6px;
}

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

.editor-container {
    display: flex;
    position: relative;
    background: var(--tft-surface);
}

.line-numbers {
    min-width: 50px;
    max-width: 60px;
    padding: 1rem 0.75rem 1rem 0.5rem;
    text-align: right;
    font-family: 'Monaco', 'Menlo', 'Consolas', 'Courier New', monospace;
    font-size: 0.875rem;
    color: var(--tft-text-muted);
    background: linear-gradient(90deg, rgba(var(--primary-rgb), 0.05), rgba(var(--primary-rgb), 0.02));
    border-right: 2px solid var(--tft-border);
    line-height: 1.6;
    user-select: none;
    overflow-y: hidden;
    overflow-x: hidden;
    white-space: pre;
    box-sizing: border-box;
    flex-shrink: 0;
}

.dark-theme .line-numbers {
    background: rgba(255, 255, 255, 0.02);
}

#text-editor {
    flex: 1;
    min-height: 400px;
    max-height: 600px;
    padding: 1rem;
    border: none;
    background: var(--tft-surface);
    color: var(--tft-text);
    font-family: 'Monaco', 'Menlo', 'Consolas', 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    resize: vertical;
    overflow-y: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
    tab-size: 4;
}

#text-editor:focus {
    outline: none;
}

#text-editor::placeholder {
    color: var(--tft-text-muted);
    opacity: 0.6;
}

.editor-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1.5rem;
    border-top: 1px solid var(--tft-border);
    background: rgba(var(--primary-rgb), 0.02);
    font-size: 0.85rem;
    color: var(--tft-text-muted);
    flex-wrap: wrap;
    gap: 0.5rem;
}

.cursor-position {
    font-family: monospace;
}

.selection-info {
    color: var(--tft-primary);
    font-weight: 500;
}

/* ===== Export Bar ===== */
.export-bar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: var(--tft-bg);
    border-radius: var(--tft-radius);
    border: 1px solid var(--tft-border);
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.export-label {
    font-weight: 600;
    color: var(--tft-text);
}

.export-bar .btn {
    background: var(--tft-surface);
    color: var(--tft-text);
    border: 1px solid var(--tft-border);
}

.export-bar .btn:hover {
    background: var(--tft-primary);
    color: #fff;
    border-color: var(--tft-primary);
}

/* Inspector Mode */
.editor-container.inspector-mode #text-editor {
    white-space: pre;
    word-wrap: normal;
}

.ws-space::after {
    content: '·';
    color: #3498db;
}

.ws-tab::after {
    content: '→';
    color: #e74c3c;
}

.ws-newline::after {
    content: '↵';
    color: #27ae60;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .primary-controls {
        grid-template-columns: 1fr;
    }

    .or-divider {
        padding: 1rem 0;
    }

    .or-divider span {
        border-radius: var(--tft-radius);
        padding: 0.5rem 2rem;
    }

    .stats-grid,
    .transform-grid,
    .clean-grid,
    .sort-filter-grid,
    .advanced-grid {
        grid-template-columns: 1fr;
    }

    .compare-inputs {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .text-file-tools-container {
        padding: 1rem;
    }

    .tft-header {
        padding: 1rem;
    }

    .tft-header .header-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .tft-header h2 {
        font-size: 1.25rem;
    }

    .tool-tabs {
        padding: 0.25rem;
    }

    .tool-tab {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }

    .tool-tab span {
        display: none;
    }

    .stats-dashboard {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat-card {
        padding: 1rem;
    }

    .stat-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .stat-value {
        font-size: 1.25rem;
    }

    .search-form .form-row {
        grid-template-columns: 1fr;
    }

    .search-actions {
        justify-content: center;
    }

    .file-info-banner {
        flex-direction: column;
        text-align: center;
    }

    .editor-header {
        flex-direction: column;
    }

    .line-numbers {
        display: none;
    }

    .edu-panel,
    .settings-panel {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .stats-dashboard {
        grid-template-columns: 1fr;
    }

    .transform-buttons .btn {
        min-width: 100%;
    }

    .tool-tab i {
        font-size: 1.25rem;
    }

    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tool-panel.active {
    animation: fadeIn 0.3s ease;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.6;
    }
}

.processing-indicator .fa-spinner {
    animation: fa-spin 1s linear infinite, pulse 1.5s ease-in-out infinite;
}