/*
* PDF to Image / Image to PDF Converter - Main Stylesheet
* MORELESS Tools Design System
* Optimized for performance and mobile-first approach
* NOTE: All box-shadows removed for clean look and better performance
*/

/* Glass Morphism Design Variables - Apple Inspired */
:root {
    /* Glass Morphism Core */
    --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, 0.08);
    --glass-blur: blur(20px) saturate(120%);
    --glass-blur-light: blur(15px) saturate(110%);

    /* Brand Colors */
    --color-dark: #031024;
    --color-dark-accent: #051e3e;
    --color-dark-light: #0a1a35;
    --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);
    
    /* 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;

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-muted: rgba(255, 255, 255, 0.6);
    --text-disabled: rgba(255, 255, 255, 0.4);
    
    /* Spacing */
    --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 cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --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-2xl: 0 25px 50px rgba(0, 0, 0, 0.5);
    --shadow-fire: 0 0 12px rgba(255, 77, 41, 0.3);
    --shadow-fire-lg: 0 0 20px rgba(255, 77, 41, 0.4);
    --shadow-glow: 0 0 30px rgba(255, 255, 255, 0.1);
    
    /* Z-Index Scale */
    --z-behind: -1;
    --z-normal: 0;
    --z-above: 1;
    --z-sticky: 10;
    --z-fixed: 100;
    --z-overlay: 1000;
    --z-modal: 2000;
    --z-toast: 3000;
    --z-tooltip: 4000;
}

/* Upload Icon Animation */
.drop-icon {
    font-size: var(--font-size-3xl);
    color: var(--color-primary);
    margin-bottom: var(--space-md);
    animation: bounce 2s infinite;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.upload-zone:hover .drop-icon {
    animation-duration: 1s;
    color: var(--color-primary-dark);
}

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

html {
    overflow-x: hidden;
}

body {
    background: radial-gradient(ellipse at top left, #05204b 25%, #031127 60%);
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    position: relative;
    opacity: 1;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.92);
    background-attachment: fixed;
    overflow-x: hidden;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

@media (max-width: 1024px) {
    body {
        background: linear-gradient(180deg, #05204b 0%, #031127 100%);
    }
}

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;
}

@keyframes pulse {
    0% {
        opacity: 0.6;
        transform: scale(1);
    }
    100% {
        opacity: 1;
        transform: scale(1.1);
    }
}

*, *::before, *::after {
    box-sizing: border-box;
}

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

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--color-dark-gray);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: var(--radius-full);
    transition: background var(--transition-normal);
}

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

/* Loading Spinner */
.loading-spinner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(3, 16, 36, 0.95);
    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 */
.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%;
}

.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%;
}

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

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

.wide-container {
    width: 100%;
    max-width: 1600px;
    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(--text-secondary);
    max-width: 400px;
    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);
}


.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);
}

/* Mode Selector */
.mode-selector-row {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-dark-gray);
    transition: margin-bottom 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mode-selector-row.collapsed {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
}

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

.mode-label i {
    color: var(--color-primary);
    font-size: 16px;
}

/* MODE TABS - ICON-INTEGRATED CARDS (OFFICIAL STANDARD) */

.mode-buttons-integrated {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding: 8px;
    justify-content: center;
}

.mode-btn-integrated {
    flex: 1 1 200px;
    max-width: 250px;
    min-width: 200px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 10px 16px;
    cursor: pointer;
    transition: background-color 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1), transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 14px;
    color: #ffffff;
    position: relative;
    overflow: hidden;
    height: 62px;
    box-sizing: border-box;
}

.mode-btn-integrated::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, #FF4D29, #ff6b47);
    transform: scaleY(0);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mode-btn-integrated:hover {
    transform: translateX(4px);
    border-color: rgba(255, 77, 41, 0.4);
    background: rgba(255, 77, 41, 0.08);
}

.mode-btn-integrated:hover::before {
    transform: scaleY(1);
}

.mode-btn-integrated.active {
    background: rgba(25, 111, 61, 0.15);
    border-color: #196F3D;
}

.mode-btn-integrated.active::before {
    background: linear-gradient(180deg, #196F3D, #228B22);
    transform: scaleY(1);
}

.mode-btn-integrated.active .mode-icon-integrated {
    background: linear-gradient(135deg, #196F3D, #228B22);
}

.mode-btn-integrated.active .mode-title-integrated {
    color: #ffffff;
}

.mode-btn-integrated.active .mode-desc-integrated {
    color: rgba(255, 255, 255, 0.8);
}

.mode-icon-integrated {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #FF4D29, #ff6b47);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mode-content-integrated {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}

.mode-title-integrated {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.2;
    margin: 0;
    color: #ffffff;
    transition: color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mode-desc-integrated {
    font-family: 'Inter', sans-serif;
    font-size: 11px;
    line-height: 1.2;
    margin: 0;
    color: rgba(255, 255, 255, 0.65);
    transition: color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   MODE COLLAPSE/EXPAND FUNCTIONALITY
   ============================================ */

.mode-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
}

.mode-collapse-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: background-color 0.2s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.2s cubic-bezier(0.4, 0, 0.2, 1), color 0.2s cubic-bezier(0.4, 0, 0.2, 1), transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.mode-collapse-btn:hover {
    background: rgba(255, 77, 41, 0.12);
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-1px);
}

.mode-collapsible-content {
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    max-height: 500px;
    opacity: 1;
}

.mode-selector-row.collapsed .mode-collapsible-content {
    max-height: 0;
    opacity: 0;
}

.mode-selector-row.collapsed .mode-collapse-btn i {
    transform: rotate(180deg);
}

/* Drop Zone - PDF Merger Style */
.upload-section {
    margin-bottom: var(--space-2xl);
}

.drop-zone {
    border: 3px dashed rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    padding: var(--space-3xl);
    text-align: center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    background: rgba(8, 22, 50, 0.35);
    cursor: pointer;
}

.drop-zone:hover {
    background: var(--glass-bg-hover);
    border-color: var(--color-primary);
    transform: translateY(-2px) scale(1.01);
}

.drop-zone.drag-active {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
    opacity: 1;
    transform: scale(1.02);
}

.drop-zone-content {
    position: relative;
    z-index: 1;
}

.drop-title {
    margin: 0 0 var(--space-xs) 0;
    color: var(--color-white);
    font-size: var(--font-size-md);
    font-weight: 600;
}

.drop-subtitle {
    color: var(--text-secondary);
    margin: 0 0 var(--space-md) 0;
    font-size: var(--font-size-sm);
}

.drop-features {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin-top: var(--space-xl);
}

.feature-badge {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Files Section */
.files-section {
    margin-bottom: var(--space-2xl);
}

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

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

.files-title i {
    color: var(--color-primary);
    font-size: 16px;
}

.files-count {
    background: var(--color-primary);
    color: var(--color-white);
    padding: 2px var(--space-sm);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    margin-left: var(--space-sm);
}

.files-actions {
    display: flex;
    gap: var(--space-xs);
}

/* Files Dropzone - PDF Merger Style */
.files-dropzone {
    border: 2px dashed rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    text-align: center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    background: rgba(8, 22, 50, 0.35);
    cursor: pointer;
}

.files-dropzone:hover {
    background: var(--glass-bg-hover);
    border-color: var(--color-primary);
    transform: translateY(-2px) scale(1.01);
}

.files-dropzone.drag-active {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
    opacity: 1;
    transform: scale(1.02);
}

.dropzone-content {
    position: relative;
    z-index: 1;
}

.dropzone-icon {
    font-size: var(--font-size-3xl);
    color: var(--color-primary);
    margin-bottom: var(--space-md);
    animation: bounce 2s infinite;
}

.dropzone-content h4 {
    margin: 0 0 var(--space-xs) 0;
    color: var(--color-white);
    font-size: var(--font-size-md);
    font-weight: 600;
}

.dropzone-content p {
    color: var(--text-secondary);
    margin: 0 0 var(--space-md) 0;
    font-size: var(--font-size-sm);
}

.dropzone-hints {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.dropzone-hints .hint-badge {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Files List - PDF Merger Style */
.files-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    max-height: 500px;
    overflow-y: auto;
    overflow-x: hidden;
}

.file-item {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    min-height: 80px;
    display: flex;
    align-items: center;
    gap: var(--space-md);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: grab;
    position: relative;
    overflow: hidden;
    width: 100%;
    margin-bottom: var(--space-lg);
}

.file-item:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border);
}

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

.file-info {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.file-name {
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--space-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 120px;
}

.file-meta {
    display: flex;
    gap: var(--space-xs);
    flex-wrap: wrap;
    overflow: hidden;
}

/* Meta Badges */
.meta-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    transition: transform 0.2s ease;
}

.meta-badge:hover {
    transform: translateY(-1px);
}

.meta-pages {
    background: rgba(52, 152, 219, 0.15);
    color: #3498db;
    border: 1px solid rgba(52, 152, 219, 0.3);
}

.meta-size {
    background: rgba(46, 204, 113, 0.15);
    color: #2ecc71;
    border: 1px solid rgba(46, 204, 113, 0.3);
}

.meta-error {
    background: rgba(231, 76, 60, 0.15);
    color: #E74C3C;
    border: 1px solid rgba(231, 76, 60, 0.3);
}

.file-actions {
    display: flex;
    gap: var(--space-sm);
    flex-shrink: 0;
    align-items: center;
    min-width: fit-content;
}

.page-selector-btn {
    height: 36px;
    padding: 0 var(--space-md);
    background: var(--color-primary-light);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-selector-btn:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px) scale(1.01);
}

/* Clear All Button - Red styling to match PDF merger */
#clearAllBtn {
    width: 36px;
    height: 36px;
    background: rgba(231, 76, 60, 0.12);
    border-color: rgba(231, 76, 60, 0.18);
    color: rgba(231, 76, 60, 0.9);
}

#clearAllBtn:hover {
    background: rgba(231, 76, 60, 0.15);
    border-color: rgba(231, 76, 60, 0.25);
    color: #e74c3c;
    transform: translateY(-2px) scale(1.01);
}

/* Page Selector Modal Styles */
#pageSelectorModal .tool-modal-body {
    padding-top: var(--space-sm);
}

.page-selector-actions {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    margin-top: 4px;
    padding-top: 0;
    flex-wrap: wrap;
}

.page-selector-actions .btn {
    min-height: 36px;
}

.page-selector-actions .btn.active {
    background: rgba(25, 111, 61, 0.5);
    border-color: rgba(25, 111, 61, 0.6);
    color: var(--color-white);
}

.page-selector-actions .btn.active:hover {
    background: rgba(25, 111, 61, 0.6);
    border-color: rgba(25, 111, 61, 0.7);
}

.page-selector-actions .btn i {
    color: var(--color-primary);
}

.page-range-input {
    display: flex;
    gap: var(--space-md);
    align-items: center;
    margin-bottom: var(--space-xs);
}

.page-range-input label {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    white-space: nowrap;
}

.page-range-input input {
    flex: 1;
    min-height: 36px;
    padding: var(--space-xs) var(--space-lg);
    background: rgba(8, 22, 50, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-size: var(--font-size-sm);
    outline: none;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-range-input input:focus {
    border-color: var(--color-primary);
}

.page-range-input input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.page-range-hint {
    display: block;
    margin-bottom: var(--space-lg);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.page-range-hint i {
    color: var(--color-primary);
    margin-right: var(--space-xs);
}

.pages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: var(--space-md);
    max-height: 300px;
    overflow-y: auto;
    padding: var(--space-md);
    background: var(--color-dark-gray);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-xl);
}

/* Page thumbnail styles - see Page Selector Modal section */

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

/* Settings Panel */
.settings-panel {
    margin-bottom: var(--space-sm);
    padding: 0;
    background: transparent;
    border: none;
}

.settings-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

/* Setting Cards */
.setting-card {
    background: rgba(255, 255, 255, 0.06);
    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-sizing: border-box;
}

.setting-card:hover {
    border-color: var(--glass-border);
    transform: translateY(-2px) scale(1.01);
    background: var(--glass-bg-hover);
}

.setting-card-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-lg) var(--space-xl);
    background: rgba(255, 255, 255, 0.06);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.setting-card-header i {
    color: var(--color-primary);
    font-size: var(--font-size-md);
}

.setting-card-header h4 {
    color: var(--color-white);
    font-size: var(--font-size-md);
    font-weight: 700;
    margin: 0;
}

.setting-card-body {
    padding: var(--space-xl);
}

.setting-dual-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.setting-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.setting-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.setting-hint {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    margin-top: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-dark-gray);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.setting-hint i {
    color: var(--color-info);
    font-size: 10px;
}

.settings-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-xl);
}

.setting-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-xs);
}

.setting-label i {
    color: var(--color-primary);
    font-size: var(--font-size-base);
}

/* Format Buttons - see Export Settings section for .format-btn */
.format-buttons {
    display: flex;
    gap: var(--space-sm);
}

/* Orientation Buttons - see Export Settings section */

/* Input Controls */
.range-input {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: var(--color-dark-light);
    border-radius: var(--radius-full);
    outline: none;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.range-input::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.range-input::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.range-input::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.dpi-selector .range-input {
    flex: 1;
}

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

.quality-selector .range-input {
    flex: 1;
}

/* .quality-value - see Export Settings section */

.number-input,
.text-input,
.select-input {
    padding: var(--space-sm) var(--space-md);
    background: rgba(8, 22, 50, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-size: var(--font-size-sm);
    font-family: var(--font-primary);
    outline: none;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
    box-sizing: border-box;
}

.number-input {
    width: 80px;
}

.text-input:focus,
.number-input:focus,
.select-input:focus {
    border-color: var(--glass-border);
    background: var(--glass-bg-hover);
}

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

/* Color Picker */
.color-picker-wrapper {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.color-input {
    width: 50px;
    height: 36px;
    padding: var(--space-xs);
    background: var(--color-dark-light);
    border: 1px solid var(--color-dark-gray);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.color-input:hover {
    border-color: var(--color-primary);
}

.color-label {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* Checkbox */
.option-checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.option-checkbox:hover {
    color: var(--color-white);
}

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

.checkbox-custom {
    width: 18px;
    height: 18px;
    border: 1px solid var(--color-gray);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.10);
    position: relative;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.checkbox-custom::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    color: var(--color-white);
    font-size: 12px;
    font-weight: 700;
    transition: transform var(--transition-bounce);
}

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

.option-checkbox input[type="checkbox"]:checked + .checkbox-custom::after {
    transform: translate(-50%, -50%) scale(1);
}

.checkbox-label {
    user-select: none;
}

/* Action Section - Three Column Layout */
.action-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-dark-gray);
}

.action-left {
    flex: 1;
}

.action-center {
    display: flex;
    justify-content: center;
    flex: 0 0 auto;
}

.action-right {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

/* Action Buttons */
.action-btn-inline {
    width: 36px;
    height: 36px;
    background: var(--glass-bg-secondary);
    border: 1px solid var(--glass-border-light);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);


    /* GPU acceleration */
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
}

.action-btn-inline:hover {
    background: var(--glass-bg-hover);
    color: var(--text-primary);
    transform: translateY(-2px) scale(1.01);
    border-color: var(--glass-border);
}

/* Color Picker Styles */
.color-input-group {
    display: flex;
    gap: var(--space-xs);
    align-items: center;
}

.color-reset-btn {
    width: 24px;
    height: 24px;
    padding: 0;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius-md);
    color: var(--color-light-gray);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.color-reset-btn:hover {
    background: linear-gradient(135deg, rgba(255, 77, 41, 0.1) 0%, rgba(255, 77, 41, 0.05) 100%);
    border-color: var(--color-primary);
    color: var(--color-white);
    transform: scale(1.1);
}

.color-input-wrapper {
    display: flex;
    gap: var(--space-xs);
    align-items: center;
}

.color-input-wrapper input[type="color"] {
    width: 48px;
    height: 48px;
    border: 2px solid var(--color-dark-gray);
    border-radius: var(--radius-md);
    cursor: pointer;
    background: transparent;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.color-input-wrapper input[type="color"]:hover {
    border-color: var(--color-primary);
    transform: scale(1.05);
}

.color-text-input {
    width: 90px;
    padding: var(--space-sm);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    background: rgba(8, 22, 50, 0.55);
    color: var(--color-white);
    font-family: var(--font-mono);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.color-text-input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: rgba(255, 255, 255, 0.1);
}

/* Orientation Buttons */
.orientation-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
}

.orientation-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
    min-height: 60px;
}

.orientation-btn:hover {
    background: rgba(255, 77, 41, 0.15);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.orientation-btn.active {
    background: rgba(25, 111, 61, 0.5);
    color: var(--color-white);
}

.orientation-btn.active:hover {
    background: rgba(25, 111, 61, 0.5);
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--color-white);
}

.orientation-btn span:first-child {
    font-weight: 600;
    font-size: var(--font-size-sm);
    margin-bottom: 2px;
}

.orientation-btn span:last-child {
    font-size: var(--font-size-xs);
    opacity: 0.8;
}

/* Position Grid */
.position-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: var(--space-xs);
    max-width: 160px;
}

.position-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.position-btn:hover {
    background: var(--glass-bg-hover);
    color: var(--text-primary);
    border-color: var(--glass-border);
    transform: scale(1.1);
}

.position-btn.active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.position-btn .position-icon {
    font-size: 16px;
    font-weight: bold;
}

/* Supported formats styling */
.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;
}

.dropzone-formats {
    margin-top: var(--space-md);
}

/* Compact Add More Zone */
.add-more-zone {
    padding: var(--space-sm);
    margin: var(--space-sm) 0;
    border: 2px dashed rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    text-align: center;
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(8, 22, 50, 0.35);
}

.add-more-zone:hover {
    border-color: var(--color-primary);
    background: rgba(255, 77, 41, 0.05);
    transform: translateY(-2px);
}

.add-more-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.add-more-icon {
    color: var(--color-primary);
    font-size: var(--font-size-md);
}

.add-more-text {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.add-more-zone:hover .add-more-text {
    color: var(--color-primary);
}

.add-more-zone:hover .add-more-icon {
    transform: scale(1.1);
}

/* Global Drag & Drop Overlay */
.global-drag-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    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: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.global-drag-overlay.active {
    display: flex;
}

.drag-overlay-content {
    text-align: center;
    color: var(--color-white);
    padding: var(--space-2xl) var(--space-3xl);
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    border: 2px dashed rgba(255, 77, 41, 0.6);
    animation: dragPulse 2s ease-in-out infinite alternate;
}

.drag-overlay-icon {
    font-size: 3.5rem;
    margin-bottom: var(--space-lg);
    color: var(--color-primary);
}

.drag-overlay-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--color-white);
}

.drag-overlay-subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

@keyframes dragPulse {
    0% { transform: scale(1); border-color: rgba(255, 77, 41, 0.4); }
    100% { transform: scale(1.02); border-color: rgba(255, 77, 41, 0.8); }
}

/* Button System - main definitions in Export Settings section */

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-lg {
    padding: var(--space-lg) var(--space-2xl);
    font-size: var(--font-size-md);
}

/* Stats Group */
.stats-group {
    display: flex;
    gap: var(--space-md);
}

.stat-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-xs) var(--space-md);
    background: rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    min-width: 60px;

    /* GPU acceleration */
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
}

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

.stat-value {
    font-size: 14px;
    font-weight: 900;
    color: var(--color-white);
    font-family: var(--font-primary);
}

.stat-label {
    font-size: 9px;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-badge.primary .stat-label {
    color: var(--color-white);
}

/* Results Section */
.results-section {
    margin-top: var(--space-2xl);
    padding: var(--space-2xl);
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
}

.results-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-lg);
    color: var(--color-success);
    margin: 0;
}

.results-title i {
    font-size: var(--font-size-xl);
}

.results-actions {
    display: flex;
    gap: var(--space-md);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--space-md);
}

.result-item {
    background: var(--glass-bg);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    text-align: center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-sizing: border-box;
}

.result-item:hover {
    transform: translateY(-2px) scale(1.01);
    border-color: var(--glass-border);
    background: var(--glass-bg-hover);
}

.result-preview {
    width: 100%;
    height: 150px;
    object-fit: contain;
    border-radius: var(--radius-md);
    background: var(--color-dark-gray);
    margin-bottom: var(--space-sm);
}

.result-name {
    font-size: var(--font-size-sm);
    color: var(--color-white);
    font-weight: 600;
    margin-bottom: var(--space-sm);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.result-actions {
    display: flex;
    gap: var(--space-xs);
    justify-content: center;
}

.result-btn {
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-primary);
    border: none;
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-size: var(--font-size-xs);
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.result-btn:hover {
    background: var(--color-primary-dark);
    transform: scale(1.05);
}

/* Analytics Wrapper */
.content-wrapper.analytics-wrapper {
    margin-top: var(--space-3xl);
    margin-bottom: 0;
}

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

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

.analytics-header i {
    color: var(--color-primary);
    font-size: 16px;
}

/* Reset Stats Button */
.reset-stats-btn {
    height: 32px;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0 var(--space-md);
    background: var(--glass-bg-secondary);
    border: 1px solid var(--glass-border-light);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.reset-stats-btn i {
    color: var(--text-secondary);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.reset-stats-btn:hover {
    background: linear-gradient(135deg, var(--color-error) 0%, var(--color-error) 100%);
    border-color: var(--color-error);
    color: var(--color-white);
    transform: translateY(-1px);
}

.reset-stats-btn:hover i {
    color: var(--color-white);
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.analytics-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);


    cursor: pointer;

    /* GPU acceleration */
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
}

.analytics-card:hover {
    transform: translate3d(0, -2px, 0);
    will-change: transform;
    border-color: rgba(255, 77, 41, 0.3);
    background: var(--glass-bg-hover);
}

.analytics-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, #e64024 100%);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.analytics-data {
    flex: 1;
}

.analytics-value {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-white);
    font-family: var(--font-primary);
    margin-bottom: 4px;
    line-height: 1.2;
}

.analytics-label {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    opacity: 0.8;
}

/* 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(--text-secondary);
    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);
    position: relative;
    overflow: hidden;
}

.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(--text-secondary);
    line-height: 1.6;
}

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

.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: var(--color-primary-light);
}

.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;
    min-height: 100px;
}

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

/* Modal - main definitions in Modal Styles section below */

/* Disable page scroll when modal is open */
body.modal-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
}

.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: background-color 0.3s, color 0.3s;
}

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

/* Base .tool-modal-body in Modal Styles section */

.tool-modal-body p {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.tool-modal-body .text-input {
    margin-bottom: var(--space-xl);
}

.modal-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: flex-end;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* 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;
    font-size: var(--font-size-sm);
    font-weight: 600;
}

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

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

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

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

@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; }
}

/* Responsive Design */
@media (max-width: 1200px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

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

/* PDF Preview functionality */
.pdf-preview-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-dark-light);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.pdf-preview-canvas {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: var(--radius-md);
}

/* PDF Preview Buttons */
.pdf-rotate-btn,
.pdf-preview-btn {
    position: absolute;
    width: 28px;
    height: 28px;
    border: none;
    border-radius: var(--radius-md);
    background: rgba(0, 0, 0, 0.85);
    color: white;
    font-size: var(--font-size-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease, opacity 0.2s ease, transform 0.2s ease;
    opacity: 0;
    z-index: 2;
}

.pdf-rotate-btn {
    top: 4px;
    right: 4px;
}

.pdf-preview-btn {
    top: 4px;
    right: 36px;
}

.pdf-preview-container:hover .pdf-rotate-btn,
.pdf-preview-container:hover .pdf-preview-btn {
    opacity: 1;
}

.pdf-rotate-btn:hover,
.pdf-preview-btn:hover {
    background: rgba(0, 0, 0, 0.9);
    transform: scale(1.1);
}

.pdf-rotate-btn:active,
.pdf-preview-btn:active {
    transform: scale(0.95);
}

@media (max-width: 768px) {
    .tool-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);
    }

    
    .drop-zone {
        padding: var(--space-md);
    }

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

    .drop-features {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-xs);
    }
    
    .files-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: var(--space-sm);
    }
    
    .file-preview {
        height: 100px;
    }

    .action-section {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .results-header {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
    
    .results-actions {
        width: 100%;
        flex-direction: column;
    }
    
    .results-actions .btn {
        width: 100%;
    }
    
    .results-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .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);
    }
    
    .tool-modal-content {
        width: 95%;
    }
    
    .tool-modal-header,
    .tool-modal-body {
        padding: var(--space-lg);
    }
}

@media (max-width: 480px) {
    .tool-container,
    .wide-container {
        padding: 0 var(--space-sm);
    }
    
    .hero {
        padding: var(--space-xs) 0;
        margin-bottom: var(--space-sm);
        margin-top: -var(--space-xl);
    }
    
    .hero-title {
        font-size: var(--font-size-md);
    }

    .drop-zone {
        padding: var(--space-sm);
    }

    .drop-title {
        font-size: var(--font-size-sm);
        margin-bottom: var(--space-xs);
    }

    .drop-subtitle {
        font-size: var(--font-size-xs);
        margin-bottom: var(--space-sm);
    }

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

    .feature-badge {
        font-size: var(--font-size-xs);
        padding: var(--space-xs) var(--space-sm);
    }
    
    .files-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
    
    .file-preview {
        height: 80px;
    }
    
    .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);
        height: 36px;
        line-height: 1.4;
    }

    .results-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
    
    .result-preview {
        height: 120px;
    }
    
    .tool-modal-header,
    .tool-modal-body {
        padding: var(--space-md);
    }
    
    .faq-question {
        padding: var(--space-md);
    }
    
    .faq-question h3 {
        font-size: var(--font-size-sm);
    }
}

/* Performance Optimizations */
.will-change-transform { will-change: transform; }
.will-change-opacity { will-change: opacity; }
.will-change-auto { will-change: auto; }

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

/* Print Styles */
@media print {
    .tool-modal,
    .btn,
    .faq-section,
    .action-btn-inline {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .content-wrapper,
    .feature-card {
        border: 1px solid #ccc;
        background: white;
        color: black;
        break-inside: avoid;
    }
}

/* PDF Preview Modal */
.modal-preview {
    max-width: 90vw;
    max-height: 90vh;
    width: auto;
    height: auto;
}

/* DELETED - using correct CSS at line 3425-3445 */

/* .preview-page-info - see Image Grid section */

/* Compact Settings Layout */
.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.settings-column {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.setting-row {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.setting-row .setting-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
}

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

.input-with-range .range-input {
    flex: 1;
    min-width: 0;
}

.input-with-range .number-input {
    width: 60px;
    min-width: 60px;
    padding: var(--space-xs) var(--space-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    text-align: center;
}

.input-with-range .quality-value {
    min-width: 40px;
    text-align: center;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
}

@media (max-width: 768px) {
    .settings-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .settings-column {
        gap: var(--space-sm);
    }
    
    .setting-row {
        gap: var(--space-xs);
    }
}

/* File Preview Styling - CRITICAL for canvas display */
.file-preview {
    width: 100% !important;
    height: 120px !important;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
    background: var(--color-dark-gray) !important;
    position: relative !important;
    overflow: hidden !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    object-fit: initial !important;
}

.file-preview canvas {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    border-radius: var(--radius-sm);
    object-fit: contain;
}

.file-preview .file-icon {
    color: var(--color-text-secondary);
    font-size: 2rem;
    opacity: 0.5;
}

/* PDF Action Buttons */
.pdf-rotate-btn,
.pdf-preview-btn {
    position: absolute;
    top: var(--space-xs);
    width: 24px;
    height: 24px;
    border: none;
    border-radius: var(--radius-md);
    background: rgba(0, 0, 0, 0.7);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    opacity: 0;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.pdf-rotate-btn {
    right: calc(var(--space-xs) + 30px);
}

.pdf-preview-btn {
    right: var(--space-xs);
}

.file-preview:hover .pdf-rotate-btn,
.file-preview:hover .pdf-preview-btn {
    opacity: 1;
}

.pdf-rotate-btn:hover,
.pdf-preview-btn:hover {
    background: var(--color-primary);
    transform: scale(1.1);
}

/* How to Use Styles */
.usage-compact {
    display: flex;
    flex-direction: column;
    gap: var(--space-2xl, 2rem);
}

.usage-steps-horizontal {
    display: flex;
    align-items: flex-end;
    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: transform 0.3s ease;
}

.step-icon:hover {
    transform: scale(1.05);
}

.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 {
    margin: 0 0 var(--space-xs) 0;
    font-size: 20px;
    font-weight: 700;
    color: var(--color-white);
}

.usage-step p {
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--text-secondary);
    line-height: 1.5;
    height: 42px;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

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

.quick-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 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);
    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);
}

.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: var(--font-size-lg, 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);
    font-weight: 500;
}

/* Mobile Responsive */
@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);
    }
    
    .step-icon {
        width: 70px;
        height: 70px;
    }
    
    .step-icon i {
        font-size: 1.3rem;
    }
}

/* Drag Handle */
.drag-handle {
    color: var(--color-gray);
    cursor: grab;
    font-size: var(--font-size-lg);
    transition: color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
    padding: 8px;
    border-radius: var(--radius-sm);
    position: relative;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-user-drag: none;
}

.drag-handle:hover {
    color: var(--color-primary);
    background: rgba(255, 77, 41, 0.1);
    transform: scale(1.1);
}

.drag-handle:active {
    cursor: grabbing;
    transform: scale(0.95);
    background: rgba(255, 77, 41, 0.2);
}

/* Visual hint for dragging */
.drag-handle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    background: radial-gradient(circle, var(--color-primary) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.drag-handle:hover::before {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.3;
    animation: dragHint 2s ease-in-out infinite;
}

@keyframes dragHint {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.3;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 0.1;
    }
}

/* Enhanced drag handle visibility when drag & drop is enabled */
.files-list.drag-enabled .drag-handle {
    opacity: 1;
    color: var(--color-primary);
}

.files-list.drag-enabled .file-item:hover .drag-handle {
    color: var(--color-white);
    background: var(--color-primary);
    transform: scale(1.2);
}

/* Drag and drop states */
.file-item.dragging,
.image-thumbnail.dragging {
    opacity: 0.5;
    transform: rotate(5deg) scale(0.95);
    background: var(--color-primary) !important;
    border-color: var(--color-primary) !important;
}

.file-item.drag-chosen,
.image-thumbnail.drag-chosen {
    opacity: 0.8;
    transform: scale(1.05);
    background: rgba(255, 77, 41, 0.1) !important;
    border-color: var(--color-primary) !important;
}

.file-item.drag-over,
.image-thumbnail.drag-over {
    transform: scale(1.02);
    background: rgba(255, 77, 41, 0.05) !important;
}

/* Mobile reorder controls */
.mobile-reorder-controls {
    display: none;
    flex-direction: column;
    gap: 4px;
    margin-left: auto;
}

.reorder-btn {
    background: var(--color-dark-light);
    border: 1px solid var(--color-border);
    color: var(--text-secondary);
    padding: 4px 6px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    font-size: 12px;
    min-width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.reorder-btn:hover:not(:disabled) {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.reorder-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

@media (max-width: 768px) {
    .drag-handle {
        display: none;
    }

    .mobile-reorder-controls {
        display: none !important;
    }
}

/* Modal Styles - QR Generator Design */
.tool-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    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;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
}

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

.tool-modal-content {
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    width: 90%;
    max-width: 500px;
    transform: translate3d(0, 30px, 0) scale(0.9);
    transition: transform 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-content.modal-large {
    max-width: 900px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

.tool-modal-content.modal-preview {
    max-width: 95vw;
    max-height: 90vh;
    width: auto;
}

.tool-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.tool-modal-title {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}
.tool-modal-title h3 {
    color: var(--color-white);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0;
}
.tool-modal-title i {
    color: var(--color-primary);
    font-size: var(--font-size-lg);
}
.tool-modal-header h3 {
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    margin: 0;
}

.tool-modal-body {
    padding: var(--space-xl);
    max-height: 60vh;
    overflow-y: auto;
}

/* Page Preview Modal */
#pagePreviewModal .tool-modal-body {
    display: flex;
    flex-direction: column;
    height: calc(90vh - 120px);
    max-height: calc(90vh - 120px);
    overflow: hidden;
    padding: var(--space-lg);
}

#pagePreviewModal .preview-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    min-height: 0;
    position: relative;
}

#pagePreviewModal #previewCanvas {
    max-width: 90vw;
    max-height: calc(90vh - 180px);
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-md);
    display: block;
}

#pagePreviewModal .preview-controls {
    flex-shrink: 0;
    padding-top: var(--space-lg);
}

.modal-footer {
    display: flex;
    gap: var(--space-md);
    justify-content: flex-end;
    padding: var(--space-lg) var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-input {
    width: 100%;
    padding: var(--space-md);
    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);
}

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

.page-thumbnails {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: var(--space-md);
    max-height: 300px;
    overflow-y: auto;
    padding: var(--space-md);
    background: rgba(8, 22, 50, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
}

.page-thumbnail {
    aspect-ratio: 210 / 297;
    background: var(--color-white);
    border: 2px solid var(--color-dark-gray);
    border-radius: var(--radius-md);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-thumbnail:hover {
    border-color: var(--color-primary);
    transform: scale(1.05);
}

.page-thumbnail.selected {
    border-color: #34D399;
}

/* Selection Overlay with Checkmark */
.selection-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(52, 211, 153, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
    z-index: 5;
    will-change: opacity;
    contain: layout style paint;
}

.page-thumbnail.selected .selection-overlay {
    opacity: 1;
}

.selection-checkmark {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #34D399, #10B981);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.8) translateZ(0);
    transition: transform 0.2s ease;
    will-change: transform;
}

.page-thumbnail.selected .selection-checkmark {
    transform: scale(1) translateZ(0);
}

.selection-checkmark i {
    color: white;
    font-size: 28px;
    font-weight: 900;
}

.page-thumbnail canvas {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform var(--transition-normal);
}

/* Rotation classes for thumbnails */
.page-thumbnail.rotated-90 canvas {
    transform: rotate(90deg);
}

.page-thumbnail.rotated-180 canvas {
    transform: rotate(180deg);
}

.page-thumbnail.rotated-270 canvas {
    transform: rotate(270deg);
}

.page-number {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.7);
    color: var(--color-white);
    padding: 2px;
    text-align: center;
    font-size: var(--font-size-xs);
}

/* Page Thumbnail Buttons */
.page-thumbnail .rotate-btn,
.page-thumbnail .preview-btn {
    position: absolute;
    width: 32px;
    height: 32px;
    background: rgba(0, 0, 0, 0.7);
    border: none;
    border-radius: var(--radius-md);
    color: var(--color-white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    opacity: 1;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
    z-index: 10;
}

.page-thumbnail .rotate-btn {
    top: var(--space-sm);
    right: var(--space-sm);
}

.page-thumbnail .preview-btn {
    top: var(--space-sm);
    left: var(--space-sm);
}

.page-thumbnail .rotate-btn:hover,
.page-thumbnail .preview-btn:hover {
    background: rgba(0, 0, 0, 0.9);
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .tool-modal-content {
        width: 95%;
        margin: var(--space-md);
    }

    .tool-modal-content.modal-large {
        width: 95%;
    }

    .page-thumbnails {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    }

    .page-selector-actions {
        justify-content: center;
    }

    .page-range-input {
        flex-direction: column;
        align-items: stretch;
    }
}

/* Export Controls - QR Generator Style */
.export-controls {
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    overflow: hidden;
}

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

.export-controls .section-title {
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-white);
    font-weight: 600;
}

.export-controls .section-title i {
    color: var(--color-primary);
}

/* Export Settings Container */
.export-settings-container {
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

/* Extra Settings Title */
.extra-settings-title {
    font-size: var(--font-size-sm);
    margin: 0 0 var(--space-sm) 0;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-white);
    font-weight: 600;
    font-family: var(--font-primary);
}

.btn-download {
    flex: 1;
    padding: var(--space-md) var(--space-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-white);
    border: 1px solid rgba(255, 77, 41, 0.3);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background 0.3s ease, transform 0.3s ease;
}

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

/* Two Column Layout */
.export-layout-two-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

/* Mobile responsive */
@media (max-width: 768px) {
    .export-layout-two-columns {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .action-section {
        display: none !important;
    }

    .action-left {
        display: none !important;
    }

    .action-right {
        display: none !important;
    }

    .export-settings-container {
        padding: var(--space-md);
        gap: var(--space-sm);
    }
}

.export-row {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.export-row label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
}

/* Format Selection */
.format-selection-compact {
    display: flex;
    gap: var(--space-xs);
}

.format-btn {
    background: rgba(255, 255, 255, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    padding: var(--space-xs) var(--space-sm);
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: var(--font-size-xs);
    min-height: 36px;
    gap: var(--space-xs);
    flex: 1;
}

.format-btn:not(.active):hover {
    background: rgba(255, 77, 41, 0.15);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.format-btn.active {
    background: rgba(25, 111, 61, 0.5);
    color: var(--color-white);
}

/* Orientation Buttons - horizontal layout with icon before text */
.orientation-buttons .format-btn {
    flex-direction: row;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-lg);
    min-height: 36px;
}

.orientation-buttons .format-btn i {
    color: var(--color-primary);
}

/* Match select-input height to buttons */
#imageToPdfSettings .select-input {
    min-height: 36px;
    padding: var(--space-xs) var(--space-md);
    background: rgba(8, 22, 50, 0.45);
}

/* Size Input Group */
.size-input-group {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

.size-slider,
.quality-slider {
    flex: 1;
    height: 4px;
    border-radius: var(--radius-full);
    background: var(--color-dark-gray);
    outline: none;
    appearance: none;
    cursor: pointer;
}

.size-slider::-webkit-slider-thumb,
.quality-slider::-webkit-slider-thumb {
    appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.size-slider::-webkit-slider-thumb:hover,
.quality-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.size-slider::-moz-range-thumb,
.quality-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    border: none;
}

.size-input {
    width: 60px;
    padding: var(--space-xs) var(--space-sm);
    background: rgba(8, 22, 50, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    color: var(--color-white);
    text-align: center;
    font-family: var(--font-primary);
    font-size: var(--font-size-xs);
    outline: none;
}

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

.size-unit,
.dimension-unit {
    color: var(--color-light-gray);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* Quality Input Group */
.quality-input-group {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

.quality-value {
    color: var(--color-primary);
    font-weight: 600;
    min-width: 40px;
    text-align: center;
}

/* Export Options */
.export-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    margin-top: var(--space-sm);
}

/* Dimension Controls */
.dimension-controls {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

.dimension-input {
    flex: 1;
    min-height: 36px;
    padding: var(--space-xs) var(--space-sm);
    background: rgba(8, 22, 50, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    color: var(--color-white);
    text-align: center;
    font-family: var(--font-primary);
    font-size: var(--font-size-xs);
    outline: none;
}

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

.dimension-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

/* Button System - QR Generator Style */
.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;
    box-sizing: border-box;
}
.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-white);
    border: 1px solid rgba(255, 77, 41, 0.3);
    position: relative;
    z-index: 1;
}
.btn-primary:hover {
    color: var(--color-white);
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
}
.btn-primary:hover::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    z-index: -1;
    animation: shine 0.8s ease-out;
}
@keyframes shine {
    to {
        left: 100%;
    }
}
.btn-secondary {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: var(--color-white);
}
.btn-secondary:hover {
    background: rgba(255, 77, 41, 0.15);
    border-color: var(--color-primary);
    color: var(--color-white);
}
.btn-danger {
    background: #dc3545;
    color: var(--color-white);
}
.btn-danger:hover {
    background: #c82333;
}
.btn-sm {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-xs);
}

/* Page Preview Modal Specific - DELETED DUPLICATE - using definition at line 2813 */

#previewCanvas {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-md);
    transform-origin: center center;
    transition: transform var(--transition-normal);
}

/* Canvas rotation classes - no scale, canvas is already sized correctly */
#previewCanvas.rotated-90 {
    transform: rotate(90deg);
}

#previewCanvas.rotated-180 {
    transform: rotate(180deg);
}

#previewCanvas.rotated-270 {
    transform: rotate(270deg);
}

.preview-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
}

.preview-page-info {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    min-width: 120px;
    text-align: center;
}

/* ==========================================
   IMAGE GRID STYLES FOR IMAGE TO PDF MODE
   ========================================== */

/* Image Grid Layout */
.files-list.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-lg);
    max-height: 500px;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--space-sm);
}

/* Image Thumbnail Container */
.image-thumbnail {
    background: rgba(255, 255, 255, 0.06);
    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);
    position: relative;
}

.image-thumbnail:hover {
    background: var(--glass-bg-hover);
    border-color: rgba(255, 77, 41, 0.3);
    transform: translateY(-2px);
}

/* Thumbnail Container */
.thumbnail-container {
    position: relative;
    width: 100%;
    height: 150px;
    overflow: hidden;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    background: var(--color-dark-gray);
    display: flex;
    align-items: center;
    justify-content: center;
}

.thumbnail-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    cursor: pointer;
    transition: transform var(--transition-normal);
}

.thumbnail-image:hover {
    transform: scale(1.05);
}

/* Rotation classes for thumbnails */
.thumbnail-container.rotated-90 .thumbnail-image {
    transform: rotate(90deg) scale(1.4);
}

.thumbnail-container.rotated-180 .thumbnail-image {
    transform: rotate(180deg);
}

.thumbnail-container.rotated-270 .thumbnail-image {
    transform: rotate(270deg) scale(1.4);
}

/* Thumbnail Action Buttons */
.thumbnail-action {
    position: absolute;
    width: 32px;
    height: 32px;
    background: rgba(0, 0, 0, 0.7);
    border: none;
    border-radius: var(--radius-md);
    color: var(--color-white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    transition: background-color var(--transition-fast), transform var(--transition-fast);
    opacity: 1; /* Always visible */
    transform: scale(1);
    z-index: 10;
}

.thumbnail-action:hover {
    background: var(--color-primary);
    transform: scale(1.1);
}

/* Move button (top-left) - Dark background with white icon */
.move-btn {
    top: var(--space-sm);
    left: var(--space-sm);
    cursor: grab;
    background: rgba(0, 0, 0, 0.7);
    color: var(--color-white);
    opacity: 1;
}

.move-btn:active {
    cursor: grabbing;
}

.move-btn:hover {
    background: rgba(0, 0, 0, 0.9);
    transform: scale(1.1);
}

/* Rotate button (next to move button) - Dark background with white icon */
.image-thumbnail .rotate-btn {
    top: var(--space-sm);
    left: calc(var(--space-sm) + 40px); /* Next to move button */
    background: rgba(0, 0, 0, 0.7);
    color: var(--color-white);
    opacity: 1;
}

.image-thumbnail .rotate-btn:hover {
    background: rgba(0, 0, 0, 0.9);
    transform: scale(1.1);
}

/* Delete button (top-right) */
.delete-btn {
    top: var(--space-sm);
    right: var(--space-sm);
    background: rgba(231, 76, 60, 0.8);
    opacity: 1;
}

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

/* Thumbnail Info */
.thumbnail-info {
    padding: var(--space-md);
}

.thumbnail-name {
    color: var(--color-white);
    font-size: var(--font-size-sm);
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-align: center;
}

/* Image Preview Modal */
.image-preview-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    cursor: pointer;
}

.image-preview-content {
    position: relative;
    max-width: 90vw;
    max-height: 85vh;
    cursor: default;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.image-preview-close {
    position: absolute;
    top: -50px;
    right: 0;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: var(--radius-full);
    color: var(--color-dark);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    transition: background-color var(--transition-fast), transform var(--transition-fast);
    z-index: 10;
}

.image-preview-close:hover {
    background: var(--color-white);
    transform: scale(1.1);
}

.image-preview-full {
    max-width: 100%;
    max-height: 75vh;
    border-radius: var(--radius-md);
    flex-shrink: 0;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.image-preview-info {
    text-align: center;
    color: var(--color-white);
    background: rgba(0, 0, 0, 0.85);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    min-width: 200px;
    flex-shrink: 0;
}

.image-preview-title {
    margin: 0 0 var(--space-sm) 0;
    font-size: var(--font-size-lg);
    color: var(--color-white);
    word-break: break-word;
    font-weight: 600;
}

.image-preview-size {
    margin: 0;
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.image-preview-info p {
    margin: 0;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* Mobile Responsiveness for Image Grid */
@media (max-width: 768px) {
    .files-list.image-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: var(--space-md);
        padding: var(--space-xs);
    }

    .thumbnail-container {
        height: 120px;
    }

    .thumbnail-action {
        width: 28px;
        height: 28px;
        font-size: var(--font-size-xs);
    }

    .rotate-btn {
        left: calc(var(--space-sm) + 32px); /* Smaller spacing on mobile */
    }

    .thumbnail-info {
        padding: var(--space-sm);
    }

    .thumbnail-name {
        font-size: var(--font-size-xs);
    }
}

/* Custom Size Inputs */
.custom-size-inputs {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.custom-size-inputs .dimension-input {
    width: 70px;
    min-height: 36px;
    padding: var(--space-sm);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    text-align: center;
}

.custom-size-inputs .unit-select {
    padding: var(--space-sm);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    min-width: 60px;
}

.custom-size-inputs span {
    color: var(--text-secondary);
    font-weight: 600;
}

/* ═══════════════════════════════════════════════════════════════
   FAVORITES TAB
   ═══════════════════════════════════════════════════════════════ */

.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;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 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;
}

/* Mobile-only elements - hidden on desktop */
.mobile-reorder-bar {
    display: none;
}

.mobile-action-btn {
    display: none;
}

.mobile-divider {
    display: none;
}

/* TABLET OPTIMIZATION (901px-1024px) - Keep usage steps and quick features in one row */
@media (max-width: 1024px) and (min-width: 901px) {
    /* How to use steps - 4 in one row on tablet */
    .usage-steps-horizontal {
        display: flex;
        flex-wrap: nowrap;
        justify-content: center;
        align-items: flex-start;
        gap: var(--space-lg);
    }

    .usage-step {
        flex: 1;
        max-width: 180px;
        text-align: center;
        align-items: 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: 1024px) {
    .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;
        align-items: flex-start;
        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) {
    body {
        background: linear-gradient(180deg, #05204b 0%, #031127 100%);
    }

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

    .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);
    }

    /* Font size 14px for conversion mode and files title */
    .mode-label {
        font-size: 14px;
    }

    .files-title {
        font-size: 14px;
    }

    /* Hide stat-badges on mobile */
    .stat-badge {
        display: none;
    }

    /* Hide action section (convert button) on mobile - moved to bottom bar */
    .action-section {
        display: none !important;
    }

    .mode-buttons-integrated {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--space-sm);
    }

    .mode-btn-integrated {
        flex: 1 1 calc(50% - var(--space-sm) / 2);
        min-width: calc(50% - var(--space-sm) / 2);
        max-width: none;
        padding: var(--space-sm) var(--space-md);
        min-height: 44px;
    }

    .mode-icon-integrated {
        width: 36px;
        height: 36px;
    }

    .mode-icon-integrated i {
        font-size: 14px;
    }

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

    .mode-desc-integrated {
        font-size: 10px;
    }

    .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 grid - 2 columns in rows */
    .analytics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-sm);
    }

    .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);
        gap: 0;
    }

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

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

    .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);
    }

    /* Settings containers optimization for mobile */
    .export-layout-two-columns {
        flex-direction: column;
        gap: var(--space-md);
    }

    .export-left-container,
    .export-right-container {
        width: 100%;
    }

    .export-section {
        padding: var(--space-md);
    }

    .export-settings-container {
        padding: var(--space-md);
        gap: var(--space-sm);
        width: 100%;
        max-width: 100%;
        overflow: hidden;
    }

    .export-row {
        gap: var(--space-xs);
        width: 100%;
        max-width: 100%;
    }

    .setting-label {
        font-size: 11px;
    }

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

    .format-buttons {
        display: flex;
        flex-wrap: wrap;
        gap: var(--space-xs);
        width: 100%;
    }

    .format-btn {
        flex: 1 1 calc(25% - var(--space-xs));
        min-width: 60px;
        max-width: none;
        padding: var(--space-xs) var(--space-sm);
        font-size: 11px;
        min-height: 36px;
    }

    .size-input-group {
        display: flex;
        width: 100%;
        gap: var(--space-xs);
        align-items: center;
    }

    .size-slider,
    .quality-slider {
        flex: 1;
        width: 100%;
        min-width: 0;
    }

    .size-input {
        width: 50px;
        min-width: 50px;
        flex-shrink: 0;
        padding: var(--space-xs);
        font-size: 11px;
        text-align: center;
    }

    .size-unit {
        flex-shrink: 0;
        font-size: 11px;
        min-width: 28px;
    }

    .dimension-controls,
    .custom-size-inputs {
        display: flex;
        width: 100%;
        gap: var(--space-xs);
        align-items: center;
    }

    .dimension-input,
    .custom-size-inputs .dimension-input {
        flex: 1;
        min-width: 0;
        max-width: 100%;
        width: auto;
        padding: var(--space-xs) var(--space-sm);
        font-size: 11px;
    }

    .dimension-unit,
    .unit-select,
    .custom-size-inputs .unit-select {
        flex-shrink: 0;
        font-size: 11px;
        min-width: 50px;
    }

    /* Files header - horizontal with 14px title */
    .files-header {
        display: flex;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        gap: var(--space-sm);
        text-align: left;
        padding-bottom: var(--space-md);
    }

    .files-title i {
        font-size: 14px;
    }

    .files-actions {
        flex-shrink: 0;
    }

    .files-actions .action-btn-inline {
        width: 36px;
        height: 36px;
        background: rgba(231, 76, 60, 0.12);
        border: 1px solid rgba(231, 76, 60, 0.3);
        border-radius: var(--radius-md);
    }

    .files-actions .action-btn-inline i {
        color: rgba(231, 76, 60, 0.9);
    }

    .files-actions .action-btn-inline:active {
        background: rgba(231, 76, 60, 0.2);
    }

    /* Files list - compact horizontal items (1:1 from PDF Merger) */
    .files-list:not(.image-grid) {
        display: flex;
        flex-direction: column;
        gap: var(--space-xs);
        padding: 0;
    }

    /* File item - compact horizontal layout (1:1 from PDF Merger) */
    .file-item {
        display: flex;
        flex-direction: row;
        align-items: center;
        gap: var(--space-sm);
        padding: var(--space-sm);
        min-height: 56px;
        flex-shrink: 0;
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.15);
        border-radius: var(--radius-md);
    }

    .file-item:hover {
        background: rgba(255, 255, 255, 0.15);
    }

    .file-icon {
        width: 44px;
        height: 44px;
        flex-shrink: 0;
        margin-bottom: 0;
        border-radius: var(--radius-md);
    }

    .file-icon i {
        font-size: 20px;
    }

    .file-info {
        flex: 1;
        min-width: 0;
        display: flex;
        flex-direction: column;
        gap: 2px;
        text-align: left;
    }

    .file-name {
        font-size: var(--font-size-xs);
        font-weight: 600;
        text-align: left;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        -webkit-line-clamp: unset;
        max-height: none;
        margin-bottom: 0;
    }

    .file-meta {
        flex-direction: row;
        gap: var(--space-xs);
        text-align: left;
        align-items: center;
        margin-bottom: 0;
    }

    .meta-badge {
        display: none;
    }

    /* File actions - compact horizontal */
    .file-actions {
        display: flex;
        flex-direction: row;
        gap: var(--space-xs);
        margin-top: 0;
        width: auto;
    }

    /* Edit Pages button - proper styling */
    .page-selector-btn {
        flex: none;
        padding: var(--space-xs) var(--space-sm);
        min-height: 36px;
        font-size: 11px;
        border-radius: var(--radius-md);
        background: rgba(255, 77, 41, 0.12);
        border: 1px solid rgba(255, 77, 41, 0.3);
        color: var(--color-primary);
    }

    .page-selector-btn:active {
        background: rgba(255, 77, 41, 0.2);
    }

    /* Delete button - 36x36px */
    .file-actions .action-btn-inline {
        min-width: 36px;
        min-height: 36px;
        width: 36px;
        height: 36px;
        padding: var(--space-xs);
        border-radius: var(--radius-md);
    }

    /* Reorder buttons - hide on mobile */
    .reorder-btns {
        display: none;
    }

    /* Drag handle - hide on mobile (except move-btn for image thumbnails) */
    .drag-handle {
        display: none;
    }

    .move-btn.drag-handle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* Hide quick actions bar desktop buttons on mobile */
    .quick-actions-bar {
        display: none;
    }

    /* Mobile reorder hint bar (1:1 from PDF Merger) */
    .mobile-reorder-bar {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: var(--space-sm);
        padding: var(--space-sm) var(--space-md);
        background: linear-gradient(135deg, rgba(255, 77, 41, 0.15) 0%, rgba(255, 77, 41, 0.08) 100%);
        border: 1px solid rgba(255, 77, 41, 0.25);
        border-radius: var(--radius-md);
        margin-bottom: var(--space-sm);
    }

    .mobile-reorder-bar i {
        font-size: 14px;
        color: var(--color-primary);
    }

    .mobile-reorder-bar span {
        font-size: 12px;
        font-weight: 600;
        color: var(--color-primary);
    }

    /* Mobile Convert Button in bottom bar */
    .mobile-action-btn {
        display: flex;
        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;
        align-items: center;
        justify-content: center;
    }

    .mobile-action-btn i {
        font-size: 16px;
        color: rgba(255, 255, 255, 0.9);
    }

    .mobile-action-btn:active {
        background: rgba(255, 255, 255, 0.15);
    }

    /* Convert button - SOLID PRIMARY */
    .mobile-action-btn[data-action="convert"] {
        background: linear-gradient(135deg, var(--color-primary) 0%, #ff6b47 100%);
        border: none;
    }

    .mobile-action-btn[data-action="convert"] i {
        color: white;
    }

    .mobile-action-btn[data-action="convert"]:active {
        background: linear-gradient(135deg, #e64425 0%, #ff5733 100%);
    }

    /* Convert button - DISABLED state */
    .mobile-action-btn[data-action="convert"]:disabled,
    .mobile-action-btn[data-action="convert"].disabled {
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.15);
        opacity: 0.5;
        cursor: not-allowed;
        pointer-events: none;
    }

    .mobile-action-btn[data-action="convert"]:disabled i,
    .mobile-action-btn[data-action="convert"].disabled i {
        color: rgba(255, 255, 255, 0.4);
    }

    .mobile-divider {
        display: block;
        flex-shrink: 0;
        width: 1px;
        min-width: 1px;
        height: 32px;
        background: rgba(255, 255, 255, 0.2);
        margin: 0 4px;
    }

    /* Export controls fixed width */
    .export-controls {
        width: 332px;
        max-width: 100%;
    }

    /* Edit Pages Modal - fixed height, thumbnails scroll (1:1 from PDF Merger) */
    #pageSelectorModal .tool-modal-content {
        max-height: 85vh;
        display: flex;
        flex-direction: column;
        overflow: hidden;
    }

    #pageSelectorModal .tool-modal-body {
        flex: 1;
        overflow: hidden;
        display: flex;
        flex-direction: column;
    }

    #pageSelectorModal .page-thumbnails {
        flex: 1;
        max-height: none;
        min-height: 200px;
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-sm);
        overflow-y: auto;
        overflow-anchor: none;
        padding: var(--space-sm);
    }

    .page-thumbnail {
        aspect-ratio: auto;
        height: 120px;
        width: 100%;
    }

    .page-thumbnail canvas {
        width: 100%;
        height: 100%;
        object-fit: contain;
    }

    #pageSelectorModal .modal-footer {
        flex-shrink: 0;
        gap: var(--space-xs);
        padding: var(--space-sm);
    }

    #pageSelectorModal .modal-footer .btn {
        padding: var(--space-xs) var(--space-sm);
        font-size: 11px;
        min-height: 40px;
    }

    #pageSelectorModal .tool-modal-header h3 {
        font-size: 16px;
    }
}

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

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

    .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);
    }

    .mode-buttons-integrated {
        gap: var(--space-xs);
    }

    .mode-btn-integrated {
        flex: 1 1 calc(50% - var(--space-xs) / 2);
        min-width: calc(50% - var(--space-xs) / 2);
        padding: var(--space-xs) var(--space-sm);
    }

    .mode-icon-integrated {
        width: 32px;
        height: 32px;
    }

    .mode-icon-integrated i {
        font-size: 12px;
    }

    .mode-title-integrated {
        font-size: 11px;
    }

    .mode-desc-integrated {
        font-size: 9px;
    }

    .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;
    }

    .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);
    }

    .mode-buttons-integrated {
        gap: 4px;
    }

    .mode-btn-integrated {
        padding: var(--space-xs);
    }

    .mode-icon-integrated {
        width: 28px;
        height: 28px;
    }

    .mode-icon-integrated i {
        font-size: 11px;
    }

    .mode-title-integrated {
        font-size: 10px;
    }

    .mode-desc-integrated {
        display: none;
    }

    .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;
    }
}