/*
* MORELESS Duplicate Word Finder - Main Stylesheet
* Professional duplicate word detection tool with real-time highlighting
* Mobile-first responsive design optimized for performance
*/

/* CSS Variables */
:root {
    /* MORELESS Brand Colors */
    --color-dark: #031024;
    --color-dark-accent: #051e3e;
    --color-dark-light: #0a1932;
    --color-primary: #FF4D29;
    --color-primary-light: rgba(255, 77, 41, 0.1);
    --color-primary-dark: #e64024;
    --color-secondary: #0055A4;
    --color-secondary-light: rgba(0, 85, 164, 0.1);
    --color-white: #FFFFFF;
    --color-light-gray: rgba(255, 255, 255, 0.7);
    --color-gray: rgba(255, 255, 255, 0.5);
    --color-dark-gray: rgba(255, 255, 255, 0.1);
    --color-success: #1e884ac7;
    --color-success-light: rgba(39, 174, 96, 0.1);
    --color-warning: #F39C12;
    --color-warning-light: rgba(243, 156, 18, 0.1);
    --color-error: #E74C3C;
    --color-error-light: rgba(231, 76, 60, 0.1);
    --color-info: #3498DB;
    --color-info-light: rgba(52, 152, 219, 0.1);
    --color-purple: #9B59B6;
    --color-purple-light: rgba(155, 89, 182, 0.1);
    --color-highlight: #FFD700;
    --color-highlight-bg: rgba(255, 215, 0, 0.3);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'Fira Code', 'Consolas', 'Monaco', monospace;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 1.875rem;
    --font-size-3xl: 2.25rem;
    --font-size-4xl: 3rem;
    
    /* Spacing System */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 0.75rem;
    --space-lg: 1rem;
    --space-xl: 1.5rem;
    --space-2xl: 2rem;
    --space-3xl: 3rem;
    
    /* Border Radius */
    --radius-xs: 0.125rem;
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-bounce: 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px rgba(255, 255, 255, 0.1);
    
    /* Glass Morphism Variables - UNIFIED SYSTEM */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-bg-hover: rgba(255, 77, 41, 0.15);
    --glass-bg-secondary: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-light: rgba(255, 255, 255, 0.05);
    --glass-blur: blur(20px) saturate(120%);
    --glass-blur-light: blur(8px) saturate(110%);
    --text-primary: rgba(255, 255, 255, 0.92);
    --text-secondary: rgba(255, 255, 255, 0.75);

    /* Z-Index Scale */
    --z-behind: -1;
    --z-normal: 0;
    --z-watermark: 1;
    --z-textarea: 2;
    --z-sticky: 50;
    --z-fixed: 100;
    --z-overlay: 1000;
    --z-modal: 2000;
    --z-tooltip: 3000;
}

/* Global Resets */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    overflow-x: hidden;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--text-primary);
    background: radial-gradient(ellipse at top left, #05204b 25%, #031127 60%);
    background-attachment: fixed;
    overflow-x: hidden;
    min-height: 100vh;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    box-sizing: border-box;
    position: relative;
    opacity: 1;
}

body.page-ready .main-content {
    opacity: 1;
    transition: opacity 0.2s ease-out;
}

@media (max-width: 900px) {
    body {
        background: linear-gradient(180deg, #05204b 0%, #031127 100%);
    }
}

/* Enhanced Glass Morphism Orb */
body::before {
    content: '';
    position: fixed;
    top: -200px;
    right: -200px;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(255, 77, 41, 0.15), transparent 60%);
    filter: blur(100px);
    z-index: 1;
    pointer-events: none;
}


/* Selection Styling */
::selection {
    background: var(--color-primary);
    color: var(--color-white);
}


/* Loading Spinner */
.loading-spinner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(3, 16, 36, 0.95);
    /* REMOVED backdrop-filter for performance - solid dark background */
    z-index: var(--z-modal);
    display: none;
    align-items: center;
    justify-content: center;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--color-dark-gray);
    border-top: 3px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}


/* Layout */
.main-content {
    opacity: 0;
    margin-top: 80px;
    min-height: calc(100vh - 80px);
    padding: var(--space-md) 0;
    position: relative;
    background: radial-gradient(circle at 15% 10%, rgb(255 77 41 / 11%) -2%, transparent 30%),
                radial-gradient(circle at 70% 85%, rgba(0, 85, 164, 0.12) 0%, transparent 55%);
    width: 100%;
    box-sizing: border-box;
}

.page-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    width: 100%;
}

.main-column {
    min-width: 0;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* Container Classes */
.tool-container {
    position: relative;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.tool-container .content-wrapper {
    padding: var(--space-xl) var(--space-lg) var(--space-lg);
}

.wide-container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.wide-container .content-wrapper {
    padding: var(--space-xl) var(--space-lg) var(--space-lg);
}

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: var(--space-md);
    padding: var(--space-xs) 0;
}

.hero-title {
    font-size: var(--font-size-xl);
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 0;
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    font-size: var(--font-size-base);
    color: var(--color-light-gray);
    max-width: 500px;
    margin: 0 auto;
    line-height: 1.3;
}

/* Content Wrapper */
.content-wrapper {
    background: rgba(255, 255, 255, 0.09);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius-md);
    padding: var(--space-2xl);
    position: relative;
    z-index: 10;
    overflow: hidden;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.content-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-primary), var(--color-secondary), transparent);
}

/* Spacing between content wrappers - Unified to match project standard (.section) */
.content-wrapper.stats-wrapper {
    margin-top: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

.content-wrapper.features-wrapper {
    margin-top: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

.content-wrapper.faq-wrapper {
    margin-top: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

/* Quick Stats Bar */
.quick-stats-bar {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-dark-gray);
}

.quick-stat {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: default;
}

.quick-stat:hover {
    transform: translate3d(0, -2px, 0);
    will-change: transform;
    background: rgba(255, 77, 41, 0.15);
    border-color: var(--color-primary);
}

.quick-stat.primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}

.stat-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-size: var(--font-size-lg);
}

.quick-stat.primary .stat-icon {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-white);
}

.stat-content {
    flex: 1;
}

.stat-value {
    font-weight: 560;
    color: var(--color-white);
    font-family: var(--font-primary);
    line-height: 1;
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--color-light-gray);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 2px;
}

/* Text Tools Bar */
.text-tools-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-xl);
    flex-wrap: nowrap;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.text-tools-left,
.text-tools-right {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.text-tools-left .text-tools-separator,
.text-tools-right .text-tools-separator {
    margin: 0 var(--space-xs);
}

.text-tool-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.10);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    font-size: var(--font-size-sm);
    /* REMOVED backdrop-filter for performance - Button: 0.12 */
    overflow: hidden;
}

.text-tool-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.text-tool-btn:hover {
    transform: translate3d(0, -2px, 0) scale3d(1.01, 1.01, 1);
    will-change: transform;
    border-color: rgba(255, 77, 41, 0.4);
    background: var(--glass-bg-hover);
}

.text-tool-btn:hover::before {
    transform: scaleX(1);
}

/* Disable gradient line for toolbar buttons */
.text-tools-bar .text-tool-btn::before,
.fullscreen-header .text-tool-btn::before {
    transform: scaleX(0);
}

.text-tools-bar .text-tool-btn:hover::before,
.fullscreen-header .text-tool-btn:hover::before {
    transform: scaleX(0);
}

/* Colored variants with glass morphism */
.text-tool-btn.paste-btn {
    background: rgba(52, 152, 219, 0.12);
    border-color: rgba(52, 152, 219, 0.18);
    color: rgba(52, 152, 219, 0.9);
    /* REMOVED backdrop-filter for performance - Button: 0.12 */
}

.text-tool-btn.paste-btn:hover {
    background: rgba(52, 152, 219, 0.15);
    border-color: rgba(52, 152, 219, 0.25);
    color: #3498db;
}

.text-tool-btn.clear-btn {
    background: rgba(231, 76, 60, 0.12);
    border-color: rgba(231, 76, 60, 0.18);
    color: rgba(231, 76, 60, 0.9);
    /* REMOVED backdrop-filter for performance - Button: 0.12 */
}

.text-tool-btn.clear-btn:hover {
    background: rgba(231, 76, 60, 0.15);
    border-color: rgba(231, 76, 60, 0.25);
    color: #e74c3c;
}

.text-tool-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.text-tool-btn:disabled:hover {
    background: var(--color-dark-light);
    border-color: transparent;
    color: var(--color-light-gray);
    transform: none;
}

.text-tool-btn.special {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
}

/* Analyze Button - with icon + text (like CONVERT in gpx-kml-converter) */
#analyzeBtn,
#fsAnalyzeBtn,
#cleanBtn,
#fsCleanBtn {
    width: auto;
    min-width: auto;
    padding: var(--space-sm) var(--space-md);
    gap: var(--space-sm);
}

#analyzeBtn span,
#fsAnalyzeBtn span,
#cleanBtn span,
#fsCleanBtn span {
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Disabled state for special buttons (when auto-analyze is ON) */
.text-tool-btn.special:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background: rgba(255, 77, 41, 0.3);
}

.text-tool-btn.special:disabled:hover {
    transform: none;
    background: rgba(255, 77, 41, 0.3);
}

/* Push download and fullscreen buttons to the right */
#downloadBtn {
    margin-left: auto;
}

.text-tool-btn.special:hover {
    transform: scale3d(1.05, 1.05, 1);
    will-change: transform;
}

#fsSetTargetBtn {
    background: linear-gradient(135deg, #FF4D29 0%, #e64024 100%);
    color: white;
}

#fsSetTargetBtn:hover {
    background: linear-gradient(135deg, #e64024 0%, #d73720 100%);
    transform: scale3d(1.05, 1.05, 1);
}

.tool-label {
    position: absolute;
    font-size: var(--font-size-xs);
    font-weight: 700;
    bottom: 2px;
    right: 2px;
}

.text-tools-separator {
    width: 1px;
    height: 24px;
    background: var(--color-gray);
    opacity: 0.3;
    margin: 0 var(--space-sm);
}

.fs-action-separator {
    width: 1px;
    height: 24px;
    background: var(--color-gray);
    opacity: 0.3;
    margin: 0 var(--space-sm);
}

/* Input Section */
.input-section {
    margin-bottom: var(--space-lg);
}

.input-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
    gap: var(--space-md);
}

.input-controls {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

.action-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.10);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    font-size: var(--font-size-sm);
    /* REMOVED backdrop-filter for performance - Button: 0.12 */
    overflow: hidden;
}

.action-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.action-btn:hover {
    transform: translate3d(0, -2px, 0) scale3d(1.01, 1.01, 1);
    will-change: transform;
    border-color: rgba(255, 77, 41, 0.4);
    background: var(--glass-bg-hover);
}

.action-btn:hover::before {
    transform: scaleX(1);
}

/* Save Status Indicator */
.save-status {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-success-light);
    border: 1px solid var(--color-success);
    border-radius: var(--radius-md);
    color: var(--color-success);
    font-size: var(--font-size-xs);
    font-weight: 600;
    flex-shrink: 0;
    cursor: help;
    transition: all var(--transition-fast);
}

.save-status.unsaved {
    background: var(--color-warning-light);
    border-color: var(--color-warning);
    color: var(--color-warning);
}

.save-status.saving {
    background: var(--color-info-light);
    border-color: var(--color-info);
    color: var(--color-info);
}

.save-icon {
    font-size: var(--font-size-xs);
    transition: transform var(--transition-fast);
}

.save-status.saving .save-icon {
    animation: spin 1s linear infinite;
}

/* Export Modal - Lorem Ipsum Design */
.tool-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* REMOVED backdrop-filter for performance - Modal Fake Blur Effect (1:1 from pdf-merger) */
    background:
        radial-gradient(circle at 30% 40%, rgba(255, 77, 41, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(0, 85, 164, 0.10) 0%, transparent 50%),
        linear-gradient(135deg, rgba(3, 16, 36, 0.97) 0%, rgba(5, 30, 62, 0.98) 50%, rgba(3, 16, 36, 0.99) 100%);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
    overflow: hidden;
}

.tool-modal.show {
    opacity: 1;
    visibility: visible;
}

/* Prevent body scroll when modal is open */
body.modal-open {
    overflow: hidden !important;
    position: fixed;
    width: 100%;
    height: 100%;
    overscroll-behavior: none;
    touch-action: none;
}

html.modal-open {
    overflow: hidden !important;
}

.tool-modal-content {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    width: 90%;
    max-width: 550px;
    /* REMOVED backdrop-filter for performance - simple glass morphism */
    transform: translate3d(0, 30px, 0) scale(0.95);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tool-modal.show .tool-modal-content {
    transform: translate3d(0, 0, 0) scale(1);
}

.tool-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-xl);
    border-bottom: 1px solid var(--color-dark-gray);
}

.tool-modal-header h3 {
    margin: 0;
    font-size: var(--font-size-lg);
    color: var(--color-white);
}

.tool-modal-close {
    width: 36px;
    height: 36px;
    background: var(--color-dark-gray);
    border: none;
    border-radius: var(--radius-md);
    color: var(--color-light-gray);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.tool-modal-close:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.tool-modal-body {
    padding: var(--space-xl);
}

/* Export Checkboxes */
.export-checkboxes {
    margin-top: var(--space-lg);
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.export-checkboxes .tool-checkbox {
    margin-bottom: var(--space-sm);
}

.export-checkboxes .tool-checkbox:last-child {
    margin-bottom: 0;
}

.export-checkbox-option {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-sm);
    cursor: pointer;
}

.export-checkbox-option:last-child {
    margin-bottom: 0;
}

.export-checkbox-option input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-right: var(--space-md);
    accent-color: var(--color-primary);
    cursor: pointer;
}

.export-checkbox-option .checkbox-text {
    color: rgba(255, 255, 255, 0.85);
    font-size: var(--font-size-sm);
    line-height: 1.4;
}

/* Export Modal Body */
.export-modal-body {
    padding-top: 0.125rem !important;
    padding-bottom: 1.5rem !important;
}

.export-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-top: var(--space-xs);
}

/* New Layout: 2x2 grid + 1 full-width at bottom */
.export-layout {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-top: var(--space-xs);
}

.export-row-top,
.export-row-middle {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.export-tile {
    min-height: 80px;
    justify-content: flex-start;
}

.export-full-width {
    width: 100%;
    min-height: 80px;
}

.export-option {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-dark-light);
    border: 1px solid var(--color-gray);
    border-radius: var(--radius-md);
    color: var(--color-white);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
    width: 100%;
    box-sizing: border-box;
}

.export-option:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.export-option i {
    font-size: 24px;
    width: 40px;
    text-align: center;
    opacity: 0.8;
}

.option-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.option-info strong {
    font-weight: 600;
    color: inherit;
}

.option-info span {
    font-size: var(--font-size-xs);
    opacity: 0.7;
    color: inherit;
}

/* Export Option Groups (1:1 from html-entity-converter) */
.export-option-group {
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid var(--color-dark-gray);
}

.export-option-group:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.export-option-group h4 {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--space-lg);
}

.export-option-group h4 i {
    color: var(--color-primary);
}

.export-format-buttons {
    display: flex;
    gap: var(--space-md);
}

.export-format-buttons .btn {
    flex: 1;
}

/* 2x2 Grid for export buttons */
.export-grid-2x2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.export-grid-2x2 .btn {
    flex: none;
}

/* DOCX button spans full width */
.export-grid-2x2 #exportDocx {
    grid-column: 1 / -1;
}

.export-option-group .btn-primary {
    width: 100%;
    justify-content: center;
}

/* Find & Replace Bar */
.find-replace-bar {
    padding: var(--space-md) var(--space-lg);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-bottom: 2px solid var(--color-warning);
    border-radius: var(--radius-md);
    /* REMOVED backdrop-filter for performance - Level 2: 0.06 */
    animation: slideDown 0.3s ease;
    margin-bottom: var(--space-md);
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.find-replace-content {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.find-group,
.replace-group {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.find-input {
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-dark);
    border: 1px solid var(--color-gray);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-size: var(--font-size-sm);
    outline: none;
    transition: all var(--transition-fast);
    width: 180px;
}

.find-input:focus {
    border-color: var(--color-warning);
}

.find-btn {
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-dark-accent);
    border: 1px solid var(--color-gray);
    border-radius: var(--radius-md);
    color: var(--color-light-gray);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-size-xs);
    font-weight: 600;
    white-space: nowrap;
}

.find-btn:hover {
    background: var(--color-warning);
    border-color: var(--color-warning);
    color: var(--color-white);
}

.find-btn.close-btn {
    background: var(--color-error-light);
    border-color: var(--color-error);
    color: var(--color-error);
    margin-left: auto;
}

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

.find-option {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--color-light-gray);
    font-size: var(--font-size-sm);
    cursor: pointer;
}

.find-option input {
    margin: 0;
}

/* Mobile responsive */
@media (max-width: 767px) {
    .find-replace-content {
        gap: var(--space-sm);
    }
    
    .find-input {
        width: 100%;
    }
}


.input-options {
    display: flex;
    gap: var(--space-lg);
}

/* Toggle Switch with Responsive Tooltip */
.option-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--color-light-gray);
    position: relative;
}

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

.toggle-slider {
    width: 40px;
    height: 20px;
    background: var(--color-dark-gray);
    border-radius: var(--radius-full);
    position: relative;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.toggle-slider::before {
    content: '';
    width: 16px;
    height: 16px;
    background: var(--color-white);
    border-radius: var(--radius-full);
    position: absolute;
    top: 2px;
    left: 2px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.option-toggle input[type="checkbox"]:checked + .toggle-slider {
    background: var(--color-primary);
}

.option-toggle input[type="checkbox"]:checked + .toggle-slider::before {
    transform: translateX(20px);
}

.toggle-label {
    font-weight: 500;
    position: relative;
    cursor: help;
}


/* Textarea Wrapper */
.textarea-wrapper {
    position: relative;
    margin-bottom: var(--space-lg);
}

.textarea-container {
    position: relative;
    border-radius: var(--radius-md);
    overflow: visible;
}

/* CodeMirror Editor Styling */
.editor-container {
    height: 350px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--glass-bg);
}

.fullscreen-editor-container {
    height: 100%;
    width: 100%;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--glass-bg);
}

/* CodeMirror duplicate highlighting - perfect integration */
.cm-content .duplicate-highlight {
    border-radius: 3px;
    padding: 1px 2px;
    margin: 0 1px;
    display: inline;
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

.cm-content .duplicate-highlight:hover {
    transform: translateY(-1px) scale(1.02);
    transition: all 0.2s ease;
}

/* CodeMirror theme customization */
.cm-editor {
    height: 100%;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
}

.cm-content {
    padding: var(--space-md);
    color: var(--text-primary);
    caret-color: var(--color-primary);
}

.cm-focused {
    outline: none;
    border-color: var(--color-primary);
}

.cm-editor.cm-focused .cm-scroller {
    outline: none;
}

/* Fullscreen editor styling */
.fullscreen-editor-container .cm-content {
    padding: var(--space-xl);
    font-size: var(--font-size-md);
    line-height: 1.8;
}

/* ========== OVERLAY DIV TECHNIQUE FOR CURSOR-SAFE HIGHLIGHTING ========== */
/* Inspired by duplicateword.com - NO DOM manipulation in contenteditable! */

/* Wrapper container for overlay + contenteditable */
.textarea-with-overlay {
    position: relative;
    flex: 1;
    width: 100%;
    min-height: 300px;
    max-height: 400px;
    height: 350px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    background: rgba(8, 22, 50, 0.55);
    /* REMOVED backdrop-filter for performance */
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.textarea-with-overlay:focus-within {
    border-color: var(--color-primary);
}

/* Overlay div - Shows highlighted HTML (NO cursor interaction!) */
.highlight-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: var(--space-md);
    pointer-events: none; /* ✅ CRITICAL: No cursor interaction here! */
    overflow-y: auto;
    overflow-x: hidden;
    white-space: pre-wrap;
    word-wrap: break-word;
    word-break: normal;
    overflow-wrap: break-word;
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    line-height: 1.4;
    letter-spacing: normal;
    word-spacing: normal;
    text-align: left;
    text-indent: 0;
    tab-size: 4;
    color: transparent; /* ✅ CRITICAL: Text invisible, only backgrounds visible! */
    z-index: 1; /* Behind contenteditable */
    box-sizing: border-box;
    margin: 0;
}

/* ContentEditable - User types here (plain text only!) */
.text-input {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: var(--space-md);
    background: transparent; /* ✅ CRITICAL: See overlay highlights behind! */
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-family: var(--font-primary);
    outline: none;
    border: none;
    line-height: 1.4;
    letter-spacing: normal;
    word-spacing: normal;
    text-align: left;
    text-indent: 0;
    tab-size: 4;
    white-space: pre-wrap;
    word-wrap: break-word;
    word-break: normal;
    overflow-wrap: break-word;
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 2; /* Above overlay for cursor interaction */
    box-sizing: border-box;
    cursor: text;
    margin: 0;
    /* ✅ CRITICAL: Force plain text mode - no <div> wrappers on Enter! */
    -webkit-user-modify: read-write-plaintext-only;
}

.text-input:empty {
    cursor: pointer;
}

/* Placeholder for contenteditable (still using watermark instead) */
.text-input:empty::before {
    content: attr(data-placeholder);
    color: transparent; /* Placeholder is always hidden (watermark used instead) */
    pointer-events: none;
}

/* Watermark System - IMPROVED */
.drop-zone-watermark {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(8, 22, 50, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    /* REMOVED backdrop-filter for performance - Level 2: 0.06 */
    z-index: var(--z-watermark);
    pointer-events: auto;
    opacity: 1;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: text;
}

/* When there's text, hide watermark */
.textarea-container.has-content .drop-zone-watermark {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

/* When dragging, highlight watermark */
.textarea-container.dragging .drop-zone-watermark {
    opacity: 1;
    visibility: visible;
    background: linear-gradient(135deg, rgba(255, 77, 41, 0.1) 0%, rgba(255, 77, 41, 0.05) 100%);
    border: 2px dashed var(--color-primary);
    pointer-events: all;
}

.watermark-content {
    text-align: center;
    color: var(--color-gray);
    pointer-events: none; /* Entire content non-clickable except the button */
}

.watermark-content i {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
    opacity: 0.6;
}

.watermark-content h3 {
    font-size: var(--font-size-lg);
    color: var(--color-light-gray);
    margin-bottom: var(--space-sm);
    font-weight: 600;
}

.watermark-content p {
    color: var(--color-gray);
    margin-bottom: var(--space-xl);
    font-size: var(--font-size-sm);
}


.supported-formats {
    margin-top: var(--space-sm);
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
}

.format-badge {
    padding: var(--space-xs) var(--space-sm);
    background: rgba(255, 77, 41, 0.1);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    color: var(--color-primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Fullscreen Modal */
.fullscreen-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-dark);
    z-index: var(--z-modal);
    display: none;
    flex-direction: column;
}

/* Disable body scroll when fullscreen is active */
body.fullscreen-active {
    overflow: hidden;
    height: 100vh;
}

.fullscreen-modal.active {
    display: flex;
}


.fullscreen-header {
    display: flex;
    flex-direction: column;
    padding: var(--space-sm) var(--space-xl);
    background: var(--color-dark-accent);
    border-bottom: 1px solid var(--color-dark-gray);
    position: relative;
    z-index: 2;
}

/* Main header row - single line */
.fullscreen-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
    min-height: 44px;
}

/* Left section: SAVED + stats */
.fullscreen-header-left {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-shrink: 0;
}

/* Right section: all buttons */
.fullscreen-header-right {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-shrink: 0;
}

.fullscreen-stats {
    display: flex;
    gap: var(--space-lg);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.fs-stat {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.fs-stat strong {
    color: var(--color-primary);
    font-family: var(--font-primary);
}

.fs-options-row {
    justify-content: flex-start;
    padding-top: var(--space-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin-top: var(--space-sm);
    min-height: auto;
}

.fs-options {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.fs-checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    user-select: none;
    transition: var(--transition-fast);
}

.fs-checkbox:hover {
    color: var(--text-primary);
}

.fs-checkbox input[type="checkbox"] {
    display: none;
}

.fs-checkbox-custom {
    position: relative;
    width: 18px;
    height: 18px;
    background: rgba(255, 255, 255, 0.10);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    flex-shrink: 0;
}

.fs-checkbox-custom::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 6px;
    height: 10px;
    border: solid var(--color-white);
    border-width: 0 2px 2px 0;
    transform: translate(-50%, -60%) rotate(45deg);
    opacity: 0;
    transition: var(--transition-fast);
}

.fs-checkbox input[type="checkbox"]:checked + .fs-checkbox-custom {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.fs-checkbox input[type="checkbox"]:checked + .fs-checkbox-custom::after {
    opacity: 1;
}

.fs-checkbox:hover .fs-checkbox-custom {
    border-color: var(--color-primary);
    background: rgba(255, 77, 41, 0.1);
}

.fs-checkbox-label {
    font-weight: 500;
    white-space: nowrap;
}

.fs-action-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: rgba(255, 255, 255, 0.10);
    /* REMOVED backdrop-filter for performance - Button: 0.12 */
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    cursor: pointer;
}

.fs-action-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.fs-save-status {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: rgba(255, 255, 255, 0.06);
    /* REMOVED backdrop-filter for performance - Level 2: 0.06 */
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    color: var(--color-success);
    font-size: var(--font-size-xs);
    font-weight: 600;
}



.fs-option-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    cursor: pointer;
}

.fs-option-toggle input[type="checkbox"] {
    display: none;
}

.fs-find-replace-bar {
    padding: var(--space-md) var(--space-xl);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-bottom: 1px solid var(--color-dark-gray);
    animation: slideDown 0.3s ease-out;
}

/* Fullscreen find-replace overrides */
.fs-find-replace-bar .find-group,
.fs-find-replace-bar .replace-group {
    gap: var(--space-sm);
}

.fs-find-replace-bar .find-input {
    background: var(--color-dark-gray);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--space-sm) var(--space-md);
    min-width: 120px;
    width: auto;
}

.fs-find-replace-bar .find-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.fs-find-replace-bar .find-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-dark-gray);
    border: none;
    min-width: 32px;
    height: 32px;
}

.fs-find-replace-bar .find-btn:hover {
    background: var(--color-primary-light);
    color: var(--color-white);
}

.fs-find-replace-bar .find-option input[type="checkbox"] {
    accent-color: var(--color-primary);
}

/* Fullscreen toggle uses the same base .toggle-slider styling above */
.fs-option-toggle input[type="checkbox"]:checked + .toggle-slider {
    background: var(--color-primary);
}

.fs-option-toggle input[type="checkbox"]:checked + .toggle-slider::before {
    transform: translateX(20px);
}

/* Fullscreen save status colors */
.fs-save-status.unsaved {
    background: rgba(231, 76, 60, 0.1);
    color: #E74C3C;
}

.fs-save-status.saving {
    background: rgba(243, 156, 18, 0.1);
    color: #F39C12;
}

.fs-save-status.saving .save-icon {
    animation: spin 1s linear infinite;
}

.fullscreen-content {
    flex: 1;
    padding: var(--space-xl);
    overflow: hidden;
    position: relative;
    z-index: 2;
}

.fullscreen-textarea-wrapper {
    position: relative;
    height: 100%;
    border-radius: var(--radius-md);
    overflow: visible;
}

/* Override max-height restriction for fullscreen textarea */
.fullscreen-textarea-wrapper .textarea-with-overlay {
    max-height: none;
    height: 100%;
    min-height: 100%;
}

/* Fullscreen Drag & Drop Watermark */
.drop-zone-watermark.fullscreen {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--z-watermark);
    opacity: 1;
}

.fullscreen-text-input {
    width: 100%;
    height: 100%;
    padding: var(--space-xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-family: var(--font-primary);
    line-height: 1.4;
    resize: none;
    outline: none;
    z-index: 2;
    position: relative;
    opacity: 0;
    /* REMOVED backdrop-filter for performance - Level 2: 0.06 */
}

.fullscreen-text-input:placeholder-shown {
    opacity: 0;
    cursor: pointer;
}

.fullscreen-text-input:focus,
.fullscreen-text-input:not(:placeholder-shown) {
    opacity: 1;
    background: var(--glass-bg);
    cursor: text;
}

.fullscreen-text-input:focus {
    border-color: var(--color-primary);
}

.fullscreen-text-input::placeholder {
    color: transparent;
}

.fullscreen-textarea-wrapper.has-content .drop-zone-watermark {
    opacity: 0;
    visibility: hidden;
}

.fullscreen-textarea-wrapper.dragging .drop-zone-watermark {
    opacity: 1;
    background: rgba(255, 77, 41, 0.1);
    border: 2px dashed var(--color-primary);
}

/* Input Footer */
.input-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-lg);
    position: relative;
}

.input-options-left {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

/* Tool Checkboxes */
.tool-checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    user-select: none;
    transition: var(--transition-fast);
}

.tool-checkbox:hover {
    color: var(--text-primary);
}

.tool-checkbox input[type="checkbox"] {
    display: none;
}

.checkbox-custom {
    position: relative;
    width: 18px;
    height: 18px;
    background: rgba(255, 255, 255, 0.10);
    border: 2px solid var(--glass-border);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    flex-shrink: 0;
}

.checkbox-custom::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 6px;
    height: 10px;
    background: rgba(255, 255, 255, 0.12);
    border: solid var(--color-white);
    border-width: 0 2px 2px 0;
    transform: translate(-50%, -60%) rotate(45deg);
    opacity: 0;
    transition: var(--transition-fast);
}

.tool-checkbox input[type="checkbox"]:checked + .checkbox-custom {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.tool-checkbox input[type="checkbox"]:checked + .checkbox-custom::after {
    opacity: 1;
}

.tool-checkbox:hover .checkbox-custom {
    border-color: var(--color-primary);
    background: rgba(255, 77, 41, 0.1);
}

.checkbox-label {
    font-weight: 500;
    white-space: nowrap;
}

/* Statistics Wrapper */
.stats-wrapper {
    /* Spacing handled by .content-wrapper.stats-wrapper above for consistency */
}

/* Tabs */
.stats-tabs {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-dark-gray);
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    color: var(--color-light-gray);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tab-btn:hover {
    background: var(--color-dark-gray);
    transform: translate3d(0, -1px, 0);
    will-change: transform;
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Statistics Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.stat-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.stat-card:hover {
    transform: translate3d(0, -2px, 0) scale3d(1.01, 1.01, 1);
    will-change: transform;
    background: rgba(255, 77, 41, 0.15);
    border-color: var(--color-primary);
}

.stat-icon-wrapper {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-size: var(--font-size-lg);
}

.stat-info {
    flex: 1;
    min-width: 0;
}

.stat-title {
    font-size: var(--font-size-xs);
    color: var(--color-light-gray);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.stat-number {
    font-size: var(--font-size-lg);
    font-weight: 560;
    color: var(--color-white);
    font-family: var(--font-primary);
}

.stat-number.with-ellipsis {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
    display: block;
}

/* Keyword Density Tab - WITH INFO ICON */
.density-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

.density-header h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.density-header h4 i {
    font-size: 16px;
}

/* Info icon */
.info-icon {
    color: var(--color-gray);
    font-size: var(--font-size-md);
    cursor: pointer;
    transition: color var(--transition-fast);
    position: relative;
}

.info-icon:hover {
    color: var(--color-primary);
}

.density-filter {
    padding: var(--space-sm) var(--space-md);
    padding-right: var(--space-xl);
    background: rgba(8, 22, 50, 0.45);
    /* REMOVED backdrop-filter for performance - Level 3: 0.08 */
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    outline: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23fff' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-sm) center;
}

.density-filter:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.density-filter:focus {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--color-primary);
}

.density-list {
    display: grid;
    gap: var(--space-sm);
    max-height: 400px;
    overflow-y: auto;
    padding-right: var(--space-sm);
}

.density-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md);
    background: var(--color-dark-gray);
    border-radius: var(--radius-md);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.density-item:hover {
    background: var(--color-primary-light);
}

/* TOP 5 KEYWORD HIGHLIGHTING - ALWAYS ACTIVE */
.density-item.top-keyword {
    border-left: 4px solid var(--color-primary);
    padding-left: calc(var(--space-md) - 4px);
}

.density-item.top-keyword::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, var(--color-primary-light) 0%, transparent 50%);
    opacity: 0.3;
    pointer-events: none;
}

.density-item.top-keyword-1 {
    border-left-color: #FFD700;
}
.density-item.top-keyword-1::before {
    background: linear-gradient(90deg, rgba(255, 215, 0, 0.15) 0%, transparent 50%);
}

.density-item.top-keyword-2 {
    border-left-color: #C0C0C0;
}
.density-item.top-keyword-2::before {
    background: linear-gradient(90deg, rgba(192, 192, 192, 0.15) 0%, transparent 50%);
}

.density-item.top-keyword-3 {
    border-left-color: #CD7F32;
}
.density-item.top-keyword-3::before {
    background: linear-gradient(90deg, rgba(205, 127, 50, 0.15) 0%, transparent 50%);
}

.density-item.top-keyword-4,
.density-item.top-keyword-5 {
    border-left-color: var(--color-primary);
}

.density-word {
    font-weight: 600;
    color: var(--color-white);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex: 1;
    min-width: 0; /* Allow flex item to shrink below content size */
}

.density-word span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px; /* Limit maximum width of word text */
}

/* Ranking badge for top keywords */
.keyword-rank {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-white);
    margin-right: var(--space-sm);
}

.density-item.top-keyword-1 .keyword-rank {
    background: #FFD700;
}

.density-item.top-keyword-2 .keyword-rank {
    background: #C0C0C0;
}

.density-item.top-keyword-3 .keyword-rank {
    background: #CD7F32;
}

.density-stats {
    display: flex;
    gap: var(--space-lg);
    font-size: var(--font-size-sm);
}

.density-count {
    color: var(--color-primary);
    font-weight: 700;
}

.density-percent {
    color: var(--color-light-gray);
}

/* Details Tab */
.details-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
}

.detail-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
    color: var(--color-light-gray);
    font-weight: 600;
}

.detail-label i {
    color: var(--color-primary);
    font-size: var(--font-size-sm);
}

.detail-value {
    font-size: var(--font-size-md);
    color: var(--color-white);
    font-weight: 700;
    font-family: var(--font-primary);
}



/* Features Section */
.features-section {
    margin-top: var(--space-3xl);
    margin-bottom: var(--space-2xl);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: var(--space-lg);
}

.section-header p {
    font-size: var(--font-size-md);
    color: var(--color-light-gray);
    max-width: 600px;
    margin: 0 auto;
}

.section-header-with-action {
    position: relative;
}

.docs-link-btn {
    position: absolute;
    top: 0;
    right: 0;
    height: 32px;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0 var(--space-md);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border: 1px solid rgba(255, 77, 41, 0.3);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    white-space: nowrap;
    overflow: hidden;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.docs-link-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.docs-link-btn:hover {
    transform: translateY(-2px);
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
}

.docs-link-btn:hover::before {
    left: 100%;
}

.docs-link-btn i {
    color: var(--color-white);
}

.docs-link-short {
    display: none;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-2xl);
}

.feature-card {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    text-align: center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    /* REMOVED backdrop-filter for performance - Level 3: 0.08 */
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.feature-card:hover {
    background: rgba(255, 77, 41, 0.15);
    border-color: var(--color-primary);
    transform: translate3d(0, -2px, 0) scale3d(1.01, 1.01, 1);
    will-change: transform;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    font-size: var(--font-size-xl);
    color: var(--color-white);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--space-md);
}

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

/* FAQ Section */
.faq-section {
    margin-bottom: var(--space-3xl);
}

.faq-grid {
    display: grid;
    gap: var(--space-md);
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    /* REMOVED backdrop-filter for performance - Level 3: 0.08 */
}

.faq-item:hover {
    background: rgba(255, 77, 41, 0.15);
    border-color: var(--color-primary);
    transform: translate3d(0, -2px, 0) scale3d(1.01, 1.01, 1);
    will-change: transform;
}

.faq-question {
    padding: var(--space-xl);
    background: rgba(255, 255, 255, 0.12);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    user-select: none;
}

.faq-question:hover {
    background: rgba(255, 77, 41, 0.1);
}

.faq-question h3 {
    font-size: var(--font-size-md);
    color: var(--color-white);
    font-weight: 600;
    margin: 0;
}

.faq-question i {
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    transition: transform var(--transition-normal);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer-content {
    padding: 0 var(--space-xl) var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.faq-answer p {
    color: var(--color-light-gray);
    line-height: 1.6;
    margin: 0;
    width: 100%;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* MODAL FAKE BLUR EFFECT - Performance optimized */
    background:
        radial-gradient(ellipse at 20% 20%, rgba(255, 77, 41, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(255, 77, 41, 0.1) 0%, transparent 50%),
        rgba(3, 16, 36, 0.95);
    /* REMOVED backdrop-filter for performance */
    z-index: var(--z-modal);
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.15);
    /* REMOVED backdrop-filter for performance - simple glass morphism */
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow: hidden;
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--color-dark-gray);
}

.modal-title {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.modal-title i {
    color: var(--color-primary);
    font-size: var(--font-size-lg);
}

.modal-title h3 {
    color: var(--color-white);
    font-size: var(--font-size-lg);
    margin: 0;
}

.modal-body {
    padding: var(--space-lg) var(--space-xl);
}


.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-select,
.form-input {
    padding: var(--space-md);
    padding-right: var(--space-xl);
    background: var(--color-dark-light);
    border: 1px solid var(--color-dark-gray);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-size: var(--font-size-base);
    outline: none;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23fff' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-md) center;
}

.form-select:focus,
.form-input:focus {
    border-color: var(--color-primary);
}

.form-input::placeholder {
    color: var(--color-gray);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: var(--font-size-sm);
    text-decoration: none;
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
}

.btn-primary:hover {
    transform: translate3d(0, -2px, 0) scale3d(1.02, 1.02, 1);
    will-change: transform;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

/* Notification Styles */
.notification {
    position: fixed;
    top: 100px;
    right: 20px;
    padding: 12px 20px;
    border-radius: 8px;
    z-index: 9999;
    animation: slideIn 0.3s ease;
    max-width: 300px;
    color: white;
    font-weight: 500;
}

.notification-success {
    background: var(--color-success);
}

.notification-error {
    background: var(--color-error);
}

.notification-warning {
    background: var(--color-warning);
}

.notification-info {
    background: var(--color-info);
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slideOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

/* Fullscreen Responsive Design */
@media (max-width: 1400px) {
    .fullscreen-header {
        padding: var(--space-sm) var(--space-lg);
    }

    .text-tool-btn {
        width: 36px;
        height: 36px;
    }

    .fs-stat {
        font-size: 12px;
    }
}

@media (max-width: 1200px) {
    .fullscreen-header {
        padding: var(--space-sm) var(--space-md);
    }

    .text-tool-btn {
        width: 34px;
        height: 34px;
    }

    .text-tool-btn i {
        font-size: 13px;
    }

    .fullscreen-stats {
        gap: var(--space-md);
    }

    .fs-stat {
        font-size: 11px;
        gap: 4px;
    }

    .fs-action-separator,
    .text-tools-separator {
        height: 22px;
        margin: 0 6px;
    }
}

@media (max-width: 900px) {
    .fullscreen-header {
        padding: var(--space-sm) var(--space-md);
    }

    .fullscreen-header-left,
    .fullscreen-header-right {
        min-width: auto;
        flex: none;
    }

    .fullscreen-stats {
        gap: var(--space-md);
        flex-wrap: wrap;
    }

    .fs-stat {
        min-width: max-content;
    }

    #fsAnalyzeBtn span {
        display: none;
    }

    #fsAnalyzeBtn {
        width: 32px;
        height: 32px;
        padding: 0;
        justify-content: center;
    }

    .text-tool-btn {
        width: 32px;
        height: 32px;
        border-radius: var(--radius-md);
    }

    .text-tool-btn i {
        font-size: 12px;
    }

    .fs-action-separator,
    .text-tools-separator {
        height: 18px;
        margin: 0 4px;
    }

    .fs-options-row {
        padding-top: var(--space-xs);
        margin-top: var(--space-xs);
    }

    .fs-options {
        gap: var(--space-lg);
    }

    .fs-checkbox {
        font-size: var(--font-size-xs);
    }

    .fs-checkbox-custom {
        width: 16px;
        height: 16px;
    }

    .fs-checkbox-custom::after {
        width: 5px;
        height: 8px;
    }
}

@media (max-width: 768px) {
    .fullscreen-header {
        padding: var(--space-sm) var(--space-md);
    }

    .fullscreen-header-row {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-sm);
    }

    .fullscreen-header-left {
        justify-content: center;
    }

    .fullscreen-header-right {
        justify-content: center;
        flex-wrap: wrap;
    }

    .fullscreen-stats {
        justify-content: center;
        gap: var(--space-sm);
    }

    .fs-stat {
        font-size: var(--font-size-xs);
    }

    .fs-options-row {
        justify-content: center;
    }

    .fs-options {
        gap: var(--space-md);
    }

    .text-tool-btn {
        width: 30px;
        height: 30px;
        border-radius: var(--radius-md);
    }

    .text-tool-btn i {
        font-size: 11px;
    }

    .fs-action-separator,
    .text-tools-separator {
        height: 16px;
        margin: 0 3px;
    }
}

@media (max-width: 600px) {
    .fullscreen-header-row {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-sm);
    }

    .fullscreen-header-left,
    .fullscreen-header-right {
        justify-content: center;
        flex: none;
    }

    .fullscreen-stats {
        justify-content: center;
        flex-wrap: wrap;
        gap: var(--space-sm);
    }

    .fs-stat {
        white-space: nowrap;
    }
}

@media (max-width: 560px) {
    .fullscreen-header-right {
        flex-wrap: wrap;
        gap: var(--space-xs);
        justify-content: center;
    }

    .text-tool-btn {
        width: 28px;
        height: 28px;
    }

    .text-tool-btn i {
        font-size: 10px;
    }

    .text-tools-separator,
    .fs-action-separator {
        display: none;
    }
}

@media (max-width: 540px) {
    .fullscreen-header {
        padding: var(--space-sm) var(--space-md);
    }

    .fullscreen-header-row {
        gap: var(--space-sm);
    }

    .fullscreen-header-left {
        gap: var(--space-md);
    }

    .fs-action-btn {
        padding: var(--space-xs) var(--space-sm);
        font-size: var(--font-size-sm);
    }

    .fs-stat {
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 480px) {
    .fullscreen-header {
        padding: var(--space-xs) var(--space-sm);
    }

    .fullscreen-header-row {
        gap: var(--space-sm);
    }

    .fullscreen-stats {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-xs);
        width: 100%;
    }

    .fs-stat {
        justify-content: center;
        text-align: center;
        font-size: var(--font-size-xs);
    }

    .fullscreen-header-left {
        flex-direction: column;
        gap: var(--space-sm);
        align-items: center;
    }

    .fs-options-row {
        justify-content: center;
    }

    .fs-checkbox {
        font-size: 11px;
    }

    .fs-checkbox-custom {
        width: 14px;
        height: 14px;
    }

    .fs-checkbox-custom::after {
        width: 4px;
        height: 7px;
    }

    .fullscreen-header-left > * {
        flex-shrink: 0;
    }

    /* Action buttons section on mobile */
    .fullscreen-header-left {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: var(--space-sm);
    }

    .fullscreen-header-left .fs-action-btn,
    .fullscreen-header-left .fs-save-status {
        flex-shrink: 0;
    }

    .fullscreen-header-right {
        flex-wrap: wrap;
        gap: var(--space-xs);
        justify-content: center;
    }

    .text-tool-btn {
        width: 28px;
        height: 28px;
        flex-shrink: 0;
    }

    .text-tool-btn i {
        font-size: 10px;
    }

    .fs-action-btn {
        padding: var(--space-xs);
        min-width: 28px;
        flex-shrink: 0;
    }

    .fs-action-btn span {
        display: none;
    }

    .fs-option-toggle {
        font-size: var(--font-size-xs);
    }

    .toggle-label {
        display: none;
    }
}

@media (max-width: 360px) {
    .fullscreen-header {
        padding: var(--space-xs);
    }

    .fullscreen-stats {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-xs);
    }

    .fs-stat:nth-child(3) {
        grid-column: 1 / -1;
        justify-self: center;
    }

    .fullscreen-header-right {
        display: flex;
        flex-wrap: wrap;
        gap: var(--space-xs);
        justify-content: center;
    }

    .text-tool-btn {
        width: 26px;
        height: 26px;
    }

    .text-tool-btn i {
        font-size: 9px;
    }

    .fs-action-btn {
        min-width: 28px;
        padding: var(--space-xs);
    }
}


/* =============================================================================
 * RESPONSIVE DESIGN 
 * ============================================================================= */

/* Responsive Design */
@media (min-width: 769px) and (max-width: 900px) {
    .quick-stats-bar {
        grid-template-columns: repeat(6, 1fr);
    }

    .quick-stat:nth-child(1),
    .quick-stat:nth-child(2),
    .quick-stat:nth-child(3) {
        grid-column: span 2;
    }

    .quick-stat:nth-child(4),
    .quick-stat:nth-child(5) {
        grid-column: span 3;
    }
}

@media (max-width: 1200px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .export-buttons {
        grid-template-columns: 1fr;
    }

    .tool-modal {
        padding: var(--space-md);
    }

    .tool-modal-content {
        max-height: 85vh;
    }

    .export-options {
        gap: var(--space-xs);
    }

    .export-option {
        padding: var(--space-sm);
    }

    .export-row-top,
    .export-row-middle {
        gap: var(--space-sm);
    }
}

@media (max-width: 900px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    #fsCleanBtn span {
        display: none;
    }

    #fsCleanBtn {
        padding: var(--space-sm);
    }
}

@media (max-width: 768px) {
    .tool-container,
    .wide-container {
        padding: 0 var(--space-md);
    }
    
    .hero {
        margin-top: -var(--space-lg);
        margin-bottom: var(--space-sm);
    }
    
    .hero-title {
        font-size: var(--font-size-lg);
    }
    
    .hero-description {
        font-size: var(--font-size-xs);
    }
    
    .content-wrapper {
        padding: var(--space-md);
    }
    
    .quick-stats-bar {
        display: grid;
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto auto;
        gap: var(--space-sm);
    }

    .quick-stat {
        padding: var(--space-md);
    }

    .quick-stat.primary {
        grid-column: 1 / -1;
        order: 5;
    }

    .quick-stat:nth-child(2) {
        order: 1;
    }

    .quick-stat:nth-child(3) {
        order: 2;
    }

    .quick-stat:nth-child(4) {
        order: 3;
    }

    .quick-stat:nth-child(5) {
        order: 4;
    }

    .stat-icon {
        width: 32px;
        height: 32px;
        font-size: var(--font-size-base);
    }

    .stat-value {
        font-size: var(--font-size-lg);
    }
    
    .text-tools-bar {
        overflow-x: auto;
        flex-wrap: nowrap;
    }
    
    .text-tool-btn.special {
        margin-left: var(--space-sm);
    }
    
    .input-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .input-options {
        flex-direction: column;
        width: 100%;
        gap: var(--space-sm);
    }
    
    .text-input,
    .highlight-overlay {
        min-height: 200px;
        padding: var(--space-md);
        font-size: var(--font-size-sm);
        line-height: 1.4;
        letter-spacing: normal;
        word-spacing: normal;
        white-space: pre-wrap;
        word-wrap: break-word;
        word-break: normal;
        overflow-wrap: break-word;
    }
    
    .stats-tabs {
        flex-wrap: wrap;
    }
    
    .tab-btn {
        flex: 1 1 calc(50% - var(--space-sm));
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .details-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .feature-card {
        padding: var(--space-lg);
    }
    
    .feature-icon {
        width: 48px;
        height: 48px;
        font-size: var(--font-size-lg);
    }
    
    .feature-card h3 {
        font-size: var(--font-size-md);
    }
    
    .feature-card p {
        font-size: var(--font-size-sm);
    }
    
    .faq-question {
        padding: var(--space-lg);
    }
    
    .faq-answer-content {
        padding: 0 var(--space-lg) var(--space-lg);
    }
    
    .modal-content {
        width: 95%;
    }
    
}

@media (max-width: 480px) {
    .hero {
        padding: var(--space-xs) 0;
        margin-bottom: var(--space-sm);
        margin-top: -var(--space-xl);
    }
    
    .hero-title {
        font-size: var(--font-size-md);
    }
    
    .content-wrapper {
        padding: var(--space-sm);
    }
    
    .text-input,
    .highlight-overlay {
        padding: var(--space-sm);
        min-height: 150px;
        font-size: var(--font-size-sm);
        line-height: 1.4;
        letter-spacing: normal;
        word-spacing: normal;
        white-space: pre-wrap;
        word-wrap: break-word;
        word-break: normal;
        overflow-wrap: break-word;
    }

    .input-footer {
        flex-direction: row;
        justify-content: space-between;
        gap: var(--space-sm);
    }

    .faq-question {
        padding: var(--space-md);
    }
    
    .faq-question h3 {
        font-size: var(--font-size-sm);
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms;
        animation-iteration-count: 1;
        transition-duration: 0.01ms;
    }
}

/* Print Styles */
@media print {
    .modal,
    .btn,
    .faq-section,
    .bg-animation,
    .action-btn,
    .text-tool-btn,
    .export-btn,
    .stats-tabs,
    .drop-zone-watermark {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .content-wrapper,
    .feature-card {
        border: 1px solid #ccc;
        background: white;
        color: black;
        break-inside: avoid;
    }
    
    .hero-title,
    .section-header h2 {
        color: black;
    }
    
    .stat-value,
    .stat-number {
        color: #333;
    }
}

/* ========================================
   HOW TO USE SECTION - COMPACT STYLES
   ======================================== */

.usage-compact {
    display: flex;
    flex-direction: column;
    gap: var(--space-2xl, 2rem);
}

/* Horizontal Steps Flow */
.usage-steps-horizontal {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg, 1.5rem);
    flex-wrap: nowrap;
    margin-bottom: var(--space-2xl, 2rem);
}

.usage-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 200px;
}

.step-icon {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-primary, #FF4D29), #ff6b47);
    border-radius: 50%;
    margin-bottom: var(--space-md, 1rem);
    transition: all 0.3s ease;
}

.step-icon:hover {
    transform: scale3d(1.05, 1.05, 1);
    will-change: transform;
}

.step-icon i {
    font-size: 1.5rem;
    color: white;
}

.step-num {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 24px;
    height: 24px;
    background: var(--color-dark, #031024);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm, 0.875rem);
    font-weight: 800;
    border: 2px solid var(--color-primary, #FF4D29);
}

.usage-step h4 {
    font-size: var(--font-size-lg, 1.25rem);
    font-weight: 700;
    color: var(--text-primary, rgba(255, 255, 255, 0.92));
    margin-bottom: var(--space-sm, 0.5rem);
}

.usage-step p {
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--text-secondary, rgba(255, 255, 255, 0.75));
    line-height: 1.5;
}

.step-arrow {
    color: var(--color-primary, #FF4D29);
    font-size: 1.5rem;
    opacity: 0.7;
}

/* Quick Features Row */
.quick-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg, 1.5rem);
}

.quick-feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm, 0.5rem);
    padding: var(--space-lg, 1.5rem);
    background: rgba(255, 255, 255, 0.12);
    /* REMOVED backdrop-filter for performance - Level 3: 0.08 */
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-height: 72px;
    text-align: center;
}

.quick-feature:hover {
    background: rgba(255, 77, 41, 0.15);
    border-color: var(--color-primary);
    transform: translate3d(0, -2px, 0) scale3d(1.01, 1.01, 1);
    will-change: transform;
}

.quick-feature i {
    font-size: 1.25rem;
    color: var(--color-primary, #FF4D29);
    flex-shrink: 0;
}

.quick-feature span {
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--text-secondary, rgba(255, 255, 255, 0.75));
    font-weight: 500;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .usage-steps-horizontal {
        flex-direction: column;
        gap: var(--space-lg, 1.5rem);
    }
    
    .step-arrow {
        transform: rotate(90deg);
        font-size: 1.25rem;
    }
    
    .step-icon {
        width: 70px;
        height: 70px;
    }
    
    .step-icon i {
        font-size: 1.25rem;
    }
    
    .quick-features {
        grid-template-columns: 1fr;
        gap: var(--space-md, 1rem);
    }
    
    .quick-feature {
        padding: var(--space-md, 1rem);
    }
}

@media (max-width: 480px) {
    .step-icon {
        width: 60px;
        height: 60px;
    }
    
    .step-icon i {
        font-size: 1.125rem;
    }
    
    .usage-step h4 {
        font-size: var(--font-size-base, 1rem);
    }
    
    .usage-step p {
        font-size: var(--font-size-xs, 0.75rem);
    }
}

/* Tool Modal Title (additional styles) */
.tool-modal-title {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.tool-modal-title i {
    color: var(--color-primary);
    font-size: var(--font-size-lg);
}

.tool-modal-title h3 {
    color: var(--color-white);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0;
}

/* Modal Responsive */
@media (max-width: 768px) {
    .tool-modal-content {
        width: 95%;
        margin: var(--space-lg);
    }

    .tool-modal-header,
    .tool-modal-body {
        padding: var(--space-lg);
    }

    .tool-modal-title h3 {
        font-size: var(--font-size-base);
    }

    .hide-mobile {
        display: none;
    }
}

/* ========== DUPLICATE HIGHLIGHTING STYLES ========== */

/* Base duplicate word highlighting */
.duplicate-highlight {
    /* ✅ CRITICAL: NO padding/margin/border - text must align perfectly! */
    padding: 0;
    margin: 0;
    border: none;
    border-radius: 2px;
    position: relative;
    /* Only background color for highlighting - no space-adding properties! */
    /* No cursor/transition - overlay is non-interactive (pointer-events: none) */
}

/* Dynamic color palette for duplicates - inspired by duplicateword.com */
.duplicate-color-0 { background: linear-gradient(135deg, rgba(255, 77, 41, 0.4), rgba(255, 77, 41, 0.5)); }
.duplicate-color-1 { background: linear-gradient(135deg, rgba(243, 156, 18, 0.4), rgba(243, 156, 18, 0.5)); }
.duplicate-color-2 { background: linear-gradient(135deg, rgba(52, 152, 219, 0.4), rgba(52, 152, 219, 0.5)); }
.duplicate-color-3 { background: linear-gradient(135deg, rgba(155, 89, 182, 0.4), rgba(155, 89, 182, 0.5)); }
.duplicate-color-4 { background: linear-gradient(135deg, rgba(46, 204, 113, 0.4), rgba(46, 204, 113, 0.5)); }
.duplicate-color-5 { background: linear-gradient(135deg, rgba(231, 76, 60, 0.4), rgba(231, 76, 60, 0.5)); }
.duplicate-color-6 { background: linear-gradient(135deg, rgba(26, 188, 156, 0.4), rgba(26, 188, 156, 0.5)); }
.duplicate-color-7 { background: linear-gradient(135deg, rgba(241, 196, 15, 0.4), rgba(241, 196, 15, 0.5)); }
.duplicate-color-8 { background: linear-gradient(135deg, rgba(142, 68, 173, 0.4), rgba(142, 68, 173, 0.5)); }
.duplicate-color-9 { background: linear-gradient(135deg, rgba(22, 160, 133, 0.4), rgba(22, 160, 133, 0.5)); }
.duplicate-color-10 { background: linear-gradient(135deg, rgba(230, 126, 34, 0.4), rgba(230, 126, 34, 0.5)); }
.duplicate-color-11 { background: linear-gradient(135deg, rgba(192, 57, 43, 0.4), rgba(192, 57, 43, 0.5)); }
.duplicate-color-12 { background: linear-gradient(135deg, rgba(41, 128, 185, 0.4), rgba(41, 128, 185, 0.5)); }
.duplicate-color-13 { background: linear-gradient(135deg, rgba(39, 174, 96, 0.4), rgba(39, 174, 96, 0.5)); }
.duplicate-color-14 { background: linear-gradient(135deg, rgba(211, 84, 0, 0.4), rgba(211, 84, 0, 0.5)); }
.duplicate-color-15 { background: linear-gradient(135deg, rgba(189, 195, 199, 0.4), rgba(189, 195, 199, 0.5)); }
.duplicate-color-16 { background: linear-gradient(135deg, rgba(127, 140, 141, 0.4), rgba(127, 140, 141, 0.5)); }
.duplicate-color-17 { background: linear-gradient(135deg, rgba(52, 73, 94, 0.4), rgba(52, 73, 94, 0.5)); }
.duplicate-color-18 { background: linear-gradient(135deg, rgba(44, 62, 80, 0.4), rgba(44, 62, 80, 0.5)); }
.duplicate-color-19 { background: linear-gradient(135deg, rgba(149, 165, 166, 0.4), rgba(149, 165, 166, 0.5)); }

/* Additional lighter variants for words with lower frequency */
.duplicate-color-20 { background: linear-gradient(135deg, rgba(255, 77, 41, 0.25), rgba(255, 77, 41, 0.35)); }
.duplicate-color-21 { background: linear-gradient(135deg, rgba(243, 156, 18, 0.25), rgba(243, 156, 18, 0.35)); }
.duplicate-color-22 { background: linear-gradient(135deg, rgba(52, 152, 219, 0.25), rgba(52, 152, 219, 0.35)); }
.duplicate-color-23 { background: linear-gradient(135deg, rgba(155, 89, 182, 0.25), rgba(155, 89, 182, 0.35)); }
.duplicate-color-24 { background: linear-gradient(135deg, rgba(46, 204, 113, 0.25), rgba(46, 204, 113, 0.35)); }
.duplicate-color-25 { background: linear-gradient(135deg, rgba(231, 76, 60, 0.25), rgba(231, 76, 60, 0.35)); }
.duplicate-color-26 { background: linear-gradient(135deg, rgba(26, 188, 156, 0.25), rgba(26, 188, 156, 0.35)); }
.duplicate-color-27 { background: linear-gradient(135deg, rgba(241, 196, 15, 0.25), rgba(241, 196, 15, 0.35)); }
.duplicate-color-28 { background: linear-gradient(135deg, rgba(142, 68, 173, 0.25), rgba(142, 68, 173, 0.35)); }
.duplicate-color-29 { background: linear-gradient(135deg, rgba(22, 160, 133, 0.25), rgba(22, 160, 133, 0.35)); }

/* Color mapping for duplicate list items - override default background */
.density-item.duplicate-color-0,
.density-item.duplicate-color-1,
.density-item.duplicate-color-2,
.density-item.duplicate-color-3,
.density-item.duplicate-color-4,
.density-item.duplicate-color-5,
.density-item.duplicate-color-6,
.density-item.duplicate-color-7,
.density-item.duplicate-color-8,
.density-item.duplicate-color-9,
.density-item.duplicate-color-10,
.density-item.duplicate-color-11,
.density-item.duplicate-color-12,
.density-item.duplicate-color-13,
.density-item.duplicate-color-14,
.density-item.duplicate-color-15,
.density-item.duplicate-color-16,
.density-item.duplicate-color-17,
.density-item.duplicate-color-18,
.density-item.duplicate-color-19,
.density-item.duplicate-color-20,
.density-item.duplicate-color-21,
.density-item.duplicate-color-22,
.density-item.duplicate-color-23,
.density-item.duplicate-color-24,
.density-item.duplicate-color-25,
.density-item.duplicate-color-26,
.density-item.duplicate-color-27,
.density-item.duplicate-color-28,
.density-item.duplicate-color-29 {
    border-radius: var(--radius-md);
    margin-bottom: 2px;
}

/* Preserve top-keyword border-left but adapt colors */
.density-item.duplicate-color-0.top-keyword { border-left-color: rgba(255, 77, 41, 0.8); }
.density-item.duplicate-color-1.top-keyword { border-left-color: rgba(243, 156, 18, 0.8); }
.density-item.duplicate-color-2.top-keyword { border-left-color: rgba(52, 152, 219, 0.8); }
.density-item.duplicate-color-3.top-keyword { border-left-color: rgba(155, 89, 182, 0.8); }
.density-item.duplicate-color-4.top-keyword { border-left-color: rgba(46, 204, 113, 0.8); }

/* Hover effect for highlighted duplicates */
.duplicate-highlight:hover {
    transform: translateY(-1px) scale(1.02);
    transition: all 0.2s ease;
    filter: brightness(1.1);
}

/* Fullscreen duplicate highlighting - colors remain the same, just different padding */
.fullscreen-text-input .duplicate-highlight {
    border-radius: 4px;
    padding: 2px 3px;
}

/* ============================================
   FAVORITE TAB (vyčnívající srdíčko)
   ============================================ */

.tool-tabs {
    position: absolute;
    top: -44px;
    right: 64px;
    display: flex;
    gap: var(--space-sm);
    z-index: 5;
}

.tool-tab {
    position: relative;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-bottom: none;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    /* REMOVED backdrop-filter for performance - Level 1: 0.04 */
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                background 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
}

.tool-tab i {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.6);
    transition: color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tool-tab:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 77, 41, 0.3);
}

.tool-tab:hover i {
    color: var(--color-primary);
}

.tool-tab.active i {
    color: #E74C3C;
}

/* Responsive duplicate highlighting */
@media (max-width: 768px) {
    .duplicate-highlight {
        padding: 0;
        margin: 0;
        border-radius: 2px;
    }

    .fullscreen-text-input .duplicate-highlight {
        padding: 0;
    }
}

/* Print styles - remove highlighting for printing */
@media print {
    .duplicate-highlight {
        background: none !important;
        box-shadow: none !important;
        border: none !important;
        padding: 0 !important;
        margin: 0 !important;
        animation: none !important;
    }
}

.mobile-action-group { display: none; }
.mobile-divider { display: none; }
.mobile-group-label { display: none; }

/* TABLET OPTIMIZATION (769px-900px) - Keep usage steps and quick features in one row */
@media (max-width: 900px) and (min-width: 769px) {
    /* How to use steps - 4 in one row on tablet */
    .usage-steps-horizontal {
        display: flex;
        flex-wrap: nowrap;
        justify-content: center;
        align-items: center;
        gap: var(--space-lg);
    }

    .usage-step {
        flex: 1;
        max-width: 180px;
        text-align: center;
        align-items: center;
    }

    .step-arrow {
        align-self: center;
    }

    /* Quick features - single row on tablet */
    .quick-features {
        display: flex;
        flex-wrap: nowrap;
        gap: var(--space-sm);
    }

    .quick-feature {
        flex: 1;
        min-width: 0;
        padding: var(--space-sm);
    }

    .quick-feature span {
        font-size: 11px;
        line-height: 1.2;
    }
}

/* MOBILE OPTIMIZATION */

@media (max-width: 900px) {
    body {
        background: linear-gradient(180deg, #05204b 0%, #031127 100%);
    }

    .hero {
        padding: var(--space-xs) var(--space-md);
    }

    .hero-title {
        font-size: var(--font-size-lg);
    }

    .hero-description {
        font-size: var(--font-size-sm);
    }

    .content-wrapper {
        padding: var(--space-xl);
    }

    .section-header h2 {
        font-size: var(--font-size-lg);
    }

    .section-header p {
        font-size: var(--font-size-sm);
    }

    .tool-tabs {
        right: 48px;
        top: -40px;
    }

    .tool-tab {
        width: 40px;
        height: 40px;
    }

    .tool-tab i {
        font-size: 16px;
    }

    .usage-steps-horizontal {
        display: flex;
        flex-wrap: nowrap;
        justify-content: center;
        gap: var(--space-lg);
    }

    .usage-step {
        flex: 1;
        max-width: 200px;
        text-align: center;
        align-items: center;
    }

    .quick-features {
        display: flex;
        flex-wrap: nowrap;
        gap: var(--space-xs);
    }

    .quick-feature {
        flex: 1;
        min-width: 0;
        padding: var(--space-sm);
    }

    .quick-feature span {
        font-size: 11px;
        line-height: 1.2;
    }
}

@media (max-width: 768px) {
    .page-layout {
        padding: 0 var(--space-md);
        padding-bottom: 60px;
        transform: none;
    }

    .main-content {
        transform: none;
        contain: none;
        will-change: auto;
        background: radial-gradient(circle at 15% 10%, rgb(255 77 41 / 0%) -2%, transparent 30%),
                    radial-gradient(circle at 70% 85%, rgba(0, 85, 164, 0.12) 0%, transparent 55%);
    }

    .tool-container {
        padding: 0 var(--space-sm);
    }

    .hero {
        padding: var(--space-xs) var(--space-sm);
        margin-bottom: var(--space-md);
        transform: none;
        contain: none;
    }

    .tool-tabs {
        display: flex;
        position: fixed;
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        height: 52px;
        flex-direction: row;
        justify-content: center;
        align-items: center;
        gap: var(--space-sm);
        padding: 0 var(--space-sm);
        background:
            linear-gradient(180deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.02) 100%),
            linear-gradient(135deg, rgba(5,20,45,0.95) 0%, rgba(3,16,36,0.92) 50%, rgba(10,25,50,0.95) 100%);
        border-top: 1px solid rgba(255, 255, 255, 0.12);
        border-bottom: none;
        z-index: 1000;
    }

    .tool-tab {
        width: 40px;
        height: 40px;
        border-radius: var(--radius-md);
        border: 1px solid rgba(255, 255, 255, 0.15);
        background: rgba(255, 255, 255, 0.08);
        cursor: pointer;
        pointer-events: auto;
        flex-shrink: 0;
    }

    .tool-tab:active {
        background: rgba(255, 255, 255, 0.15);
    }

    .tool-tab i {
        font-size: 16px;
    }

    .tool-tab:focus,
    .tool-tab:focus-visible {
        outline: none;
        border-color: rgba(255, 255, 255, 0.15);
    }

    .mobile-action-btn:focus,
    .mobile-action-btn:focus-visible {
        outline: none;
    }

    .mobile-action-btn:hover {
        border-color: rgba(255, 255, 255, 0.15);
    }

    .mobile-action-btn:hover i {
        color: rgba(255, 255, 255, 0.9);
    }

    .mobile-action-group {
        display: flex;
        align-items: center;
        gap: 4px;
    }

    .mobile-group-label {
        display: none;
    }

    .mobile-divider {
        display: block;
        flex-shrink: 0;
        width: 1px;
        min-width: 1px;
        height: 32px;
        background: rgba(255, 255, 255, 0.2);
        margin: 0 2px;
    }

    .mobile-action-btn[data-action="clear"] {
        background: rgba(231, 76, 60, 0.12);
        border: 1px solid rgba(231, 76, 60, 0.15);
    }

    .mobile-action-btn[data-action="clear"] i {
        color: rgba(231, 76, 60, 0.9);
    }

    .mobile-action-btn[data-action="clear"]:active {
        background: rgba(231, 76, 60, 0.2);
    }

    .mobile-action-btn[data-action="clear"]:hover i {
        color: rgba(231, 76, 60, 0.9);
    }

    .mobile-action-btn[data-action="download"] {
        background: rgba(52, 152, 219, 0.12);
        border: 1px solid rgba(52, 152, 219, 0.15);
    }

    .mobile-action-btn[data-action="download"] i {
        color: rgba(52, 152, 219, 0.9);
    }

    .mobile-action-btn[data-action="download"]:active {
        background: rgba(52, 152, 219, 0.2);
    }

    .mobile-action-btn[data-action="download"]:hover i {
        color: rgba(52, 152, 219, 0.9);
    }

    .mobile-action-btn[data-action="clean"] {
        background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
        border: none;
    }

    .mobile-action-btn[data-action="clean"] i {
        color: var(--color-white);
    }

    .mobile-action-btn[data-action="clean"]:active {
        background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    }

    .mobile-action-btn[data-action="clean"]:hover i {
        color: var(--color-white);
    }

    .text-tools-bar {
        display: none;
    }

    #analyzeBtn,
    #focusModeBtn,
    #cleanBtn,
    #downloadBtn {
        display: none;
    }

    .tool-checkbox:has(#autoAnalyze) {
        display: none;
    }

    .input-header {
        display: none;
    }

    .input-footer {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        gap: var(--space-md);
        margin-bottom: 0;
    }

    .input-section {
        margin-bottom: var(--space-sm);
    }

    .text-input,
    .highlight-overlay {
        font-size: var(--font-size-sm);
        line-height: 1.4;
        letter-spacing: normal;
        word-spacing: normal;
        padding: var(--space-md);
        white-space: pre-wrap;
        word-wrap: break-word;
        word-break: normal;
        overflow-wrap: break-word;
    }

    .supported-formats {
        flex-wrap: wrap;
        gap: var(--space-xs);
        justify-content: center;
    }

    .format-badge {
        font-size: 10px;
        padding: 4px 8px;
    }

    .content-wrapper .quick-stats-bar {
        display: grid;
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto auto;
        gap: var(--space-xs);
        margin-bottom: var(--space-sm);
    }

    .input-header {
        margin-bottom: var(--space-sm);
    }

    .content-wrapper .quick-stat {
        padding: var(--space-sm);
    }

    .content-wrapper .quick-stat.primary {
        grid-column: 1 / -1;
        order: 5;
    }

    .content-wrapper .quick-stat:nth-child(2) {
        order: 1;
    }

    .content-wrapper .quick-stat:nth-child(3) {
        order: 2;
    }

    .content-wrapper .quick-stat:nth-child(4) {
        order: 3;
    }

    .content-wrapper .quick-stat:nth-child(5) {
        order: 4;
    }

    .content-wrapper .stat-icon {
        width: 28px;
        height: 28px;
        font-size: var(--font-size-sm);
    }

    .content-wrapper .stat-value {
        font-size: var(--font-size-sm);
    }

    .content-wrapper .stat-label {
        font-size: 9px;
    }

    .hero-title {
        font-size: var(--font-size-base);
    }

    .hero-description {
        font-size: var(--font-size-xs);
        max-width: 100%;
    }

    .content-wrapper {
        padding: var(--space-lg);
        border-radius: var(--radius-md);
    }

    .section-header {
        margin-bottom: var(--space-md);
    }

    .section-header h2 {
        font-size: var(--font-size-sm);
    }

    .section-header p {
        font-size: var(--font-size-xs);
    }

    .docs-link-btn {
        height: 28px;
        padding: 0 var(--space-sm);
        font-size: 10px;
        border-radius: var(--radius-md);
    }

    .docs-link-full {
        display: none;
    }

    .docs-link-short {
        display: inline;
    }

    .analytics-header {
        flex-direction: row;
        text-align: left;
        justify-content: space-between;
        align-items: center;
    }

    .analytics-header h4 {
        font-size: var(--font-size-sm);
    }

    .reset-stats-btn {
        width: auto;
        height: 28px;
        padding: 0 var(--space-sm);
        font-size: var(--font-size-xs);
        border-radius: var(--radius-md);
    }

    .analytics-card {
        padding: var(--space-sm);
    }

    .analytics-icon {
        width: 36px;
        height: 36px;
    }

    .analytics-icon i {
        font-size: var(--font-size-sm);
    }

    .analytics-value {
        font-size: var(--font-size-base);
    }

    .analytics-label {
        font-size: 9px;
    }

    .usage-compact {
        margin-top: var(--space-lg);
    }

    .usage-steps-horizontal {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
        justify-items: center;
        margin-bottom: 0;
    }

    .usage-step {
        align-items: center;
        text-align: center;
    }

    .usage-step:nth-child(5) {
        grid-column: 1 / -1;
        justify-self: center;
        margin-top: var(--space-xs);
    }

    .step-arrow {
        display: none;
    }

    .step-icon {
        width: 56px;
        height: 56px;
    }

    .step-icon i {
        font-size: 1.125rem;
    }

    .usage-step h4 {
        font-size: var(--font-size-sm);
    }

    .usage-step p {
        font-size: var(--font-size-xs);
    }

    .quick-features {
        display: flex;
        flex-wrap: nowrap;
        gap: var(--space-xs);
    }

    .quick-feature {
        flex: 1;
        padding: var(--space-sm);
        flex-direction: column;
        text-align: center;
    }

    .quick-feature i {
        font-size: var(--font-size-sm);
    }

    .quick-feature span {
        font-size: 9px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }

    .feature-card {
        display: grid;
        grid-template-columns: auto 1fr;
        grid-template-rows: auto auto;
        gap: 0 var(--space-md);
        text-align: left;
        padding: var(--space-md);
        align-items: start;
    }

    .feature-icon {
        grid-row: 1 / 3;
        align-self: center;
        width: 44px;
        height: 44px;
    }

    .feature-card h3 {
        grid-column: 2;
        grid-row: 1;
        font-size: var(--font-size-sm);
        margin-bottom: 0;
    }

    .feature-card p {
        grid-column: 2;
        grid-row: 2;
        font-size: var(--font-size-xs);
        margin: 0;
    }

    .faq-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .faq-question {
        min-height: 44px;
    }

    .faq-question h3 {
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 480px) {
    .page-layout {
        padding: 0 var(--space-sm);
    }

    .tool-container {
        padding: 0 var(--space-xs);
    }

    .content-wrapper .quick-stats-bar {
        display: grid;
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto auto;
        gap: var(--space-xs);
    }

    .content-wrapper .quick-stat.primary {
        grid-column: 1 / -1;
        order: 5;
    }

    .content-wrapper .quick-stat:nth-child(2) {
        order: 1;
    }

    .content-wrapper .quick-stat:nth-child(3) {
        order: 2;
    }

    .content-wrapper .quick-stat:nth-child(4) {
        order: 3;
    }

    .content-wrapper .quick-stat:nth-child(5) {
        order: 4;
    }

    .hero {
        padding: 0 var(--space-xs);
        margin-bottom: var(--space-md);
    }

    .hero-title {
        font-size: var(--font-size-sm);
        font-weight: 800;
    }

    .hero-description {
        font-size: 11px;
        line-height: 1.4;
    }

    .content-wrapper {
        padding: var(--space-md);
        border-radius: var(--radius-md);
    }

    .tool-tab {
        width: 36px;
        height: 36px;
    }

    .tool-tab i {
        font-size: 14px;
    }

    .section-header h2 {
        font-size: var(--font-size-sm);
    }

    .section-header p {
        font-size: 11px;
    }

    .analytics-header h4 {
        font-size: var(--font-size-xs);
    }

    .reset-stats-btn {
        height: 24px;
        padding: 0 var(--space-xs);
        font-size: 10px;
        border-radius: var(--radius-md);
    }

    .analytics-icon {
        width: 32px;
        height: 32px;
    }

    .analytics-icon i {
        font-size: var(--font-size-xs);
    }

    .analytics-value {
        font-size: var(--font-size-sm);
    }

    .analytics-label {
        font-size: 8px;
    }

    .usage-compact {
        margin-top: var(--space-md);
    }

    .usage-steps-horizontal {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-sm);
        justify-items: center;
        margin-bottom: 0;
    }

    .step-icon {
        width: 48px;
        height: 48px;
    }

    .step-icon i {
        font-size: 1rem;
    }

    .usage-step h4 {
        font-size: var(--font-size-xs);
    }

    .usage-step p {
        font-size: 10px;
    }

    .quick-feature {
        padding: var(--space-xs);
    }

    .quick-feature i {
        font-size: var(--font-size-xs);
    }

    .quick-feature span {
        font-size: 8px;
    }

    .features-grid {
        gap: var(--space-xs);
    }

    .feature-card {
        padding: var(--space-sm) var(--space-md);
        gap: 0 var(--space-sm);
    }

    .feature-icon {
        width: 36px;
        height: 36px;
        font-size: 0.875rem;
    }

    .feature-card h3 {
        font-size: var(--font-size-xs);
        margin-bottom: 0;
    }

    .feature-card p {
        font-size: 11px;
        line-height: 1.3;
    }

    .faq-question {
        padding: var(--space-md);
    }

    .faq-question h3 {
        font-size: var(--font-size-xs);
    }

    .faq-answer-content {
        padding: 0 var(--space-md) var(--space-md);
    }

    .faq-answer-content p {
        font-size: var(--font-size-xs);
    }
}

@media (max-width: 375px) {
    .page-layout {
        padding: 0 var(--space-xs);
    }

    .tool-container {
        padding: 0;
    }

    .hero {
        margin-bottom: var(--space-sm);
    }

    .hero-title {
        font-size: var(--font-size-xs);
    }

    .hero-description {
        font-size: 10px;
    }

    .content-wrapper {
        padding: var(--space-sm);
    }

    .tool-tabs {
        gap: var(--space-xs);
    }

    .tool-tab {
        width: 32px;
        height: 32px;
    }

    .tool-tab i {
        font-size: 12px;
    }

    .section-header h2 {
        font-size: var(--font-size-xs);
    }

    .section-header p {
        font-size: 10px;
    }

    .analytics-header h4 {
        font-size: 11px;
    }

    .reset-stats-btn {
        height: 22px;
        font-size: 9px;
        border-radius: var(--radius-md);
    }

    .analytics-icon {
        width: 28px;
        height: 28px;
    }

    .analytics-value {
        font-size: var(--font-size-xs);
    }

    .analytics-label {
        font-size: 7px;
    }

    .usage-compact {
        margin-top: var(--space-sm);
    }

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

    .step-icon i {
        font-size: 0.875rem;
    }

    .usage-step h4 {
        font-size: 11px;
    }

    .usage-step p {
        font-size: 9px;
    }

    .quick-feature span {
        font-size: 7px;
    }

    .feature-card {
        padding: var(--space-xs) var(--space-sm);
    }

    .feature-icon {
        width: 32px;
        height: 32px;
    }

    .feature-card h3 {
        font-size: 11px;
    }

    .feature-card p {
        font-size: 10px;
    }

    .faq-question h3 {
        font-size: 11px;
    }

    .faq-answer-content p {
        font-size: 11px;
    }
}

/* MOBILE STATS GRID - FINAL OVERRIDE */
@media (max-width: 768px) {
    .quick-stats-bar {
        display: grid;
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto auto;
        gap: var(--space-xs);
    }

    .quick-stat:nth-child(1),
    .quick-stat:nth-child(2),
    .quick-stat:nth-child(3),
    .quick-stat:nth-child(4),
    .quick-stat:nth-child(5) {
        grid-column: auto;
    }

    .quick-stat.primary {
        grid-column: 1 / -1;
        order: 5;
    }

    .quick-stat:nth-child(2) {
        order: 1;
    }

    .quick-stat:nth-child(3) {
        order: 2;
    }

    .quick-stat:nth-child(4) {
        order: 3;
    }

    .quick-stat:nth-child(5) {
        order: 4;
    }

    /* Hide button text on mobile - show only icons */
    #analyzeBtn span,
    #fsAnalyzeBtn span,
    #cleanBtn span,
    #fsCleanBtn span {
        display: none;
    }

    #analyzeBtn,
    #fsAnalyzeBtn,
    #cleanBtn,
    #fsCleanBtn {
        padding: var(--space-sm);
    }
}