/* Text Cleaner Styles */
:root {
    --tc-primary: #0f172a;
    --tc-secondary: #3b82f6;
    --tc-accent: #8b5cf6;
    --tc-success: #10b981;
    --tc-warning: #f59e0b;
    --tc-danger: #ef4444;
    --tc-bg: #ffffff;
    --tc-surface: #f8fafc;
    --tc-border: #e2e8f0;
    --tc-text: #1e293b;
    --tc-text-light: #64748b;
    --tc-radius: 12px;
    --tc-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --tc-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.text-cleaner-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1rem;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--tc-text);
    line-height: 1.6;
}

/* Hero */
.tc-hero {
    text-align: center;
    margin-bottom: 3rem;
}

.tc-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--tc-secondary), var(--tc-accent));
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.tc-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin: 0 0 1rem;
    color: var(--tc-primary);
}

.tc-subtitle {
    font-size: 1.25rem;
    color: var(--tc-text-light);
    max-width: 800px;
    margin: 0 auto;
}

/* Tool Wrapper */
.tc-tool-wrapper {
    background: var(--tc-surface);
    border-radius: var(--tc-radius);
    padding: 1.5rem;
    margin-bottom: 3rem;
    border: 1px solid var(--tc-border);
    box-shadow: var(--tc-shadow-lg);
}

.tc-layout {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 1.5rem;
}

@media (max-width: 1024px) {
    .tc-layout {
        grid-template-columns: 1fr;
    }
}

/* Operations Panel */
.tc-operations-panel {
    background: white;
    border-radius: var(--tc-radius);
    padding: 1.5rem;
    border: 1px solid var(--tc-border);
    height: fit-content;
    max-height: 85vh;
    overflow-y: auto;
}

.tc-panel-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin: 0 0 1.5rem;
    color: var(--tc-text);
}

.tc-op-section {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--tc-border);
}

.tc-op-section:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
}

.tc-op-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--tc-text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

/* Quick Actions */
.tc-quick-actions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.tc-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    padding: 0.875rem 0.5rem;
    background: var(--tc-surface);
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.875rem;
}

.tc-action-btn:hover {
    background: white;
    border-color: var(--tc-secondary);
    transform: translateY(-2px);
    box-shadow: var(--tc-shadow);
}

.action-icon {
    font-size: 1.25rem;
}

.action-text {
    font-weight: 600;
    color: var(--tc-text);
    font-size: 0.8rem;
}

/* Case Buttons */
.tc-case-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.tc-case-btn {
    padding: 0.625rem;
    background: white;
    border: 1px solid var(--tc-border);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--tc-text);
    transition: all 0.2s;
}

.tc-case-btn:hover {
    border-color: var(--tc-secondary);
    color: var(--tc-secondary);
    background: rgba(59, 130, 246, 0.05);
}

/* Find & Replace */
.tc-find-replace {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.tc-input {
    width: 100%;
    padding: 0.625rem;
    border: 1px solid var(--tc-border);
    border-radius: 6px;
    font-size: 0.95rem;
    transition: border-color 0.2s;
}

.tc-input:focus {
    outline: none;
    border-color: var(--tc-secondary);
}

.tc-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    cursor: pointer;
}

.tc-fr-btn {
    padding: 0.625rem;
    background: var(--tc-secondary);
    color: white;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.tc-fr-btn:hover {
    background: var(--tc-primary);
}

/* Advanced Grid */
.tc-advanced-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.tc-adv-btn {
    padding: 0.5rem;
    background: white;
    border: 1px solid var(--tc-border);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8rem;
    color: var(--tc-text);
    transition: all 0.2s;
}

.tc-adv-btn:hover {
    border-color: var(--tc-accent);
    color: var(--tc-accent);
    background: rgba(139, 92, 246, 0.05);
}

/* Line Operations */
.tc-line-ops {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.tc-line-control {
    display: grid;
    grid-template-columns: 70px 1fr auto;
    align-items: center;
    gap: 0.5rem;
}

.tc-line-control label {
    font-size: 0.875rem;
    font-weight: 500;
}

.tc-input-sm {
    padding: 0.5rem;
    border: 1px solid var(--tc-border);
    border-radius: 6px;
    font-size: 0.875rem;
}

.tc-apply-btn {
    padding: 0.5rem 0.75rem;
    background: var(--tc-surface);
    border: 1px solid var(--tc-border);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    white-space: nowrap;
}

.tc-apply-btn:hover {
    background: var(--tc-secondary);
    color: white;
    border-color: var(--tc-secondary);
}

/* Reset Section */
.tc-reset-section {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

.tc-reset-btn,
.tc-undo-btn {
    flex: 1;
    padding: 0.75rem;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s;
}

.tc-reset-btn {
    background: var(--tc-danger);
    color: white;
    border: none;
}

.tc-reset-btn:hover {
    background: #dc2626;
}

.tc-undo-btn {
    background: white;
    color: var(--tc-text);
    border: 1px solid var(--tc-border);
}

.tc-undo-btn:hover {
    background: var(--tc-surface);
}

/* Editor Panel */
.tc-editor-panel {
    background: white;
    border-radius: var(--tc-radius);
    border: 1px solid var(--tc-border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.tc-editor-tabs {
    display: flex;
    background: var(--tc-surface);
    border-bottom: 1px solid var(--tc-border);
}

.tc-tab {
    flex: 1;
    padding: 1rem;
    background: none;
    border: none;
    cursor: pointer;
    font-weight: 600;
    color: var(--tc-text-light);
    transition: all 0.2s;
    position: relative;
}

.tc-tab:hover {
    color: var(--tc-text);
}

.tc-tab.active {
    color: var(--tc-secondary);
    background: white;
}

.tc-tab.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--tc-secondary);
}

.tc-tab-content {
    display: none;
    flex-direction: column;
    height: 500px;
}

.tc-tab-content.active {
    display: flex;
}

.tc-textarea-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--tc-surface);
    border-bottom: 1px solid var(--tc-border);
}

.tc-stats {
    font-size: 0.875rem;
    color: var(--tc-text-light);
    font-family: monospace;
}

.tc-clear-btn,
.tc-copy-btn,
.tc-download-btn {
    padding: 0.375rem 0.75rem;
    border-radius: 4px;
    font-size: 0.875rem;
    cursor: pointer;
    border: 1px solid var(--tc-border);
    background: white;
    transition: all 0.2s;
}

.tc-clear-btn:hover {
    background: var(--tc-danger);
    color: white;
    border-color: var(--tc-danger);
}

.tc-copy-btn:hover,
.tc-download-btn:hover {
    background: var(--tc-secondary);
    color: white;
    border-color: var(--tc-secondary);
}

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

.tc-textarea {
    flex: 1;
    width: 100%;
    padding: 1rem;
    border: none;
    resize: none;
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.6;
    background: white;
}

.tc-textarea:focus {
    outline: none;
}

/* Compare View */
.tc-compare-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 1rem;
    padding: 1rem;
    height: 100%;
    overflow: hidden;
}

.tc-compare-side {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.tc-compare-side h4 {
    margin: 0 0 0.5rem;
    font-size: 0.875rem;
    color: var(--tc-text-light);
    text-transform: uppercase;
}

.tc-compare-box {
    flex: 1;
    background: var(--tc-surface);
    border-radius: 8px;
    padding: 1rem;
    overflow: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.tc-compare-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--tc-secondary);
    font-weight: bold;
}

.tc-diff-stats {
    padding: 0.75rem 1rem;
    background: var(--tc-surface);
    border-top: 1px solid var(--tc-border);
    text-align: center;
    font-size: 0.875rem;
    color: var(--tc-text-light);
}

/* Analysis Panel */
.tc-analysis-panel {
    margin-top: 1.5rem;
    background: white;
    border-radius: var(--tc-radius);
    padding: 1.5rem;
    border: 1px solid var(--tc-border);
}

.tc-analysis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.tc-stat-card {
    background: var(--tc-surface);
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
    border: 1px solid var(--tc-border);
}

.tc-stat-card.highlight {
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--tc-success);
}

.tc-stat-card.warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: var(--tc-warning);
}

.stat-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--tc-text);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--tc-text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tc-duplicate-list {
    background: var(--tc-surface);
    border-radius: 8px;
    padding: 1rem;
    max-height: 200px;
    overflow-y: auto;
}

/* Toast */
.tc-toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--tc-success);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    box-shadow: var(--tc-shadow-lg);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s;
    pointer-events: none;
    z-index: 1000;
}

.tc-toast.show {
    opacity: 1;
    transform: translateY(0);
}

/* Sections */
.tc-section {
    margin-bottom: 3rem;
}

.tc-section-title {
    font-size: 1.875rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--tc-text);
}

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

.tc-step {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: var(--tc-radius);
    border: 1px solid var(--tc-border);
    transition: transform 0.3s;
}

.tc-step:hover {
    transform: translateY(-5px);
    box-shadow: var(--tc-shadow-lg);
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--tc-secondary), var(--tc-accent));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1rem;
}

.tc-step h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

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

/* Use Cases */
.tc-use-cases {
    margin-bottom: 3rem;
}

.tc-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.tc-case-card {
    background: white;
    border-radius: var(--tc-radius);
    border: 1px solid var(--tc-border);
    padding: 1.5rem;
    transition: all 0.3s;
}

.tc-case-card:hover {
    box-shadow: var(--tc-shadow-lg);
    transform: translateY(-3px);
}

.case-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.tc-case-card h4 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    color: var(--tc-text);
}

.tc-case-card p {
    color: var(--tc-text-light);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

/* SEO Content */
.tc-seo-content {
    margin-bottom: 3rem;
}

.tc-seo-content h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 2.5rem 0 1rem;
    color: var(--tc-text);
}

.tc-seo-content p {
    margin-bottom: 1.25rem;
    color: var(--tc-text-light);
    line-height: 1.8;
    font-size: 1.05rem;
}

.tc-seo-content code {
    background: var(--tc-surface);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: monospace;
    color: var(--tc-accent);
    font-size: 0.9em;
}

.tc-applications {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.app-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--tc-radius);
    border: 1px solid var(--tc-border);
    border-left: 4px solid var(--tc-secondary);
}

.app-card h4 {
    margin: 0 0 0.75rem;
    font-size: 1.125rem;
    color: var(--tc-text);
}

.app-card p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--tc-text-light);
}

/* FAQ */
.tc-faq-section {
    margin-bottom: 3rem;
}

.tc-faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.tc-faq-item {
    background: white;
    border: 1px solid var(--tc-border);
    border-radius: var(--tc-radius);
    margin-bottom: 1rem;
    overflow: hidden;
}

.tc-faq-question {
    width: 100%;
    padding: 1.25rem;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--tc-text);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.2s;
}

.tc-faq-question:hover {
    background: var(--tc-surface);
}

.faq-icon {
    font-size: 1.5rem;
    color: var(--tc-secondary);
    font-weight: 300;
    transition: transform 0.3s;
}

.tc-faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.tc-faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 1.25rem;
}

.tc-faq-item.active .tc-faq-answer {
    max-height: 500px;
    padding: 0 1.25rem 1.25rem;
}

.tc-faq-answer p {
    color: var(--tc-text-light);
    line-height: 1.7;
    margin: 0;
}

/* CTA */
.tc-cta-box {
    background: linear-gradient(135deg, var(--tc-primary), #1e293b);
    color: white;
    padding: 3rem;
    border-radius: var(--tc-radius);
    text-align: center;
    box-shadow: var(--tc-shadow-lg);
}

.tc-cta-box h3 {
    font-size: 1.875rem;
    margin-bottom: 1rem;
}

.tc-cta-box p {
    font-size: 1.125rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 1.5rem;
}

.tc-cta-btn {
    background: white;
    color: var(--tc-primary);
    border: none;
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 14px rgba(0,0,0,0.2);
}

.tc-cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

/* Responsive */
@media (max-width: 768px) {
    .text-cleaner-container {
        padding: 1rem;
    }
    
    .tc-tool-wrapper {
        padding: 1rem;
    }
    
    .tc-quick-actions,
    .tc-case-buttons,
    .tc-advanced-grid {
        grid-template-columns: 1fr;
    }
    
    .tc-line-control {
        grid-template-columns: 1fr;
    }
    
    .tc-compare-container {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr auto 1fr;
    }
    
    .tc-compare-divider {
        transform: rotate(90deg);
    }
    
    .tc-analysis-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tc-cta-box {
        padding: 2rem 1.5rem;
    }
}