/* ======================
   ADVANCED WORD COUNTER
   ====================== */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@300;400;500&display=swap');

/* CSS Variables - Advanced Design System */
:root {
    /* Primary Colors - Writing/Text Theme */
    --primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-dark: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
    --primary-light: linear-gradient(135deg, #a5b4fc 0%, #c4b5fd 100%);
    --primary-solid: #667eea;
    --primary-solid-dark: #5a67d8;
    
    /* Secondary Colors */
    --secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --secondary-dark: linear-gradient(135deg, #e879f9 0%, #ef4444 100%);
    --accent: linear-gradient(135deg, #4ade80 0%, #22c55e 100%);
    
    /* Status Colors */
    --success: linear-gradient(135deg, #4ade80 0%, #22c55e 100%);
    --warning: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    --danger: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    --info: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
    
    /* Neutral Palette */
    --white: #ffffff;
    --black: #000000;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Surface Colors */
    --surface-primary: #ffffff;
    --surface-secondary: #f8fafc;
    --surface-tertiary: #f1f5f9;
    --surface-elevated: rgba(255, 255, 255, 0.95);
    --surface-glass: rgba(255, 255, 255, 0.1);
    
    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;
    --text-inverse: #ffffff;
    --text-muted: #64748b;
    
    /* Background */
    --bg-primary: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    --bg-secondary: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    --bg-pattern: radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.05) 0%, transparent 50%),
                  radial-gradient(circle at 80% 20%, rgba(245, 101, 101, 0.05) 0%, transparent 50%),
                  radial-gradient(circle at 40% 80%, rgba(16, 185, 129, 0.05) 0%, transparent 50%);
    
    /* Shadows - Depth System */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);
    
    /* Glass Morphism */
    --glass-bg: rgba(255, 255, 255, 0.25);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    
    /* Border Radius */
    --radius-xs: 0.25rem;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    --radius-full: 9999px;
    
    /* Transitions & Animations */
    --transition-all: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Z-index Stack */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-notification: 1080;
    
    /* Typography Scale */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --surface-primary: #1e293b;
        --surface-secondary: #0f172a;
        --surface-tertiary: #334155;
        --text-primary: #f1f5f9;
        --text-secondary: #cbd5e1;
        --text-tertiary: #94a3b8;
        --gray-100: #334155;
        --gray-200: #475569;
        --gray-300: #64748b;
    }
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    font-feature-settings: 'liga' 1, 'kern' 1;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Floating Background Animation */
.tool-page::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: var(--bg-pattern);
    animation: floatingBackground 60s ease-in-out infinite;
    pointer-events: none;
    z-index: -1;
}

@keyframes floatingBackground {
    0%, 100% { transform: rotate(0deg) translate(0, 0); }
    25% { transform: rotate(90deg) translate(20px, -20px); }
    50% { transform: rotate(180deg) translate(-20px, 20px); }
    75% { transform: rotate(270deg) translate(20px, 20px); }
}

/* Main Container */
.tool-page {
    min-height: 100vh;
    position: relative;
    padding: 2rem;
}

.tool-container {
    max-width: 1600px;
    margin: 0 auto;
    background: var(--surface-elevated);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    border: 1px solid var(--gray-200);
    backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
    padding: 3rem;
}

.tool-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary);
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

/* Tool Header */
.tool-header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--gray-200);
}

.tool-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    letter-spacing: -0.025em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.tool-description {
    color: var(--text-secondary);
    font-size: var(--text-lg);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Features Bar */
.features-bar {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--surface-elevated);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    backdrop-filter: blur(10px);
    transition: var(--transition-all);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.feature-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-solid);
}

.feature-item i {
    color: var(--primary-solid);
    font-size: 1.1em;
}

/* Counter Main Layout */
.counter-main {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 2rem;
    margin-bottom: 2rem;
}

/* Input Workspace */
.input-workspace {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.input-section {
    background: var(--surface-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.input-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: var(--surface-primary);
    border-bottom: 1px solid var(--gray-200);
}

.input-header h2 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.input-tools {
    display: flex;
    gap: 0.5rem;
}

.tool-btn {
    padding: 0.5rem;
    background: transparent;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-all);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tool-btn:hover {
    background: var(--surface-secondary);
    border-color: var(--primary-solid);
    color: var(--primary-solid);
}

.textarea-container {
    position: relative;
    padding: 1.5rem;
}

#text-input {
    width: 100%;
    min-height: 300px;
    padding: 1.5rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    font-family: 'JetBrains Mono', 'Monaco', 'Cascadia Code', monospace;
    background: var(--surface-primary);
    color: var(--text-primary);
    resize: vertical;
    transition: var(--transition-all);
    line-height: 1.8;
}

#text-input:focus {
    outline: none;
    border-color: var(--primary-solid);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    transform: translateY(-1px);
}

.live-count {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    background: var(--surface-glass);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--gray-300);
    display: flex;
    gap: 1rem;
    font-size: var(--text-xs);
    color: var(--text-secondary);
    font-weight: 500;
}

/* Sample Texts */
.sample-texts {
    background: var(--surface-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.samples-header {
    padding: 1.5rem;
    background: var(--surface-primary);
    border-bottom: 1px solid var(--gray-200);
}

.samples-header h3 {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.samples-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    padding: 1.5rem;
}

.sample-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--surface-primary);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition-all);
    font-size: var(--text-sm);
    color: var(--text-primary);
}

.sample-btn:hover {
    background: var(--surface-tertiary);
    border-color: var(--primary-solid);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.sample-btn i {
    font-size: 1.5rem;
    color: var(--primary-solid);
}

/* Analysis Sidebar */
.analysis-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Quick Stats */
.quick-stats {
    background: var(--surface-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.stats-header {
    padding: 1.5rem;
    background: var(--surface-primary);
    border-bottom: 1px solid var(--gray-200);
}

.stats-header h3 {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.quick-stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    padding: 1.5rem;
}

.quick-stat {
    text-align: center;
    padding: 1rem;
    background: var(--surface-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: var(--transition-all);
}

.quick-stat:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
    border-color: var(--primary-solid);
}

.quick-stat .stat-value {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--primary-solid);
    display: block;
    margin-bottom: 0.25rem;
}

.quick-stat .stat-label {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

/* Reading Time */
.reading-time {
    background: var(--surface-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.reading-header {
    padding: 1.5rem;
    background: var(--surface-primary);
    border-bottom: 1px solid var(--gray-200);
}

.reading-header h3 {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.reading-stats {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.reading-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--surface-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
}

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

.reading-value {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--primary-solid);
}

/* Detailed Analysis */
.detailed-analysis {
    margin-top: 2rem;
    background: var(--surface-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

/* Analysis Tabs */
.analysis-tabs {
    display: flex;
    background: var(--surface-primary);
    border-bottom: 1px solid var(--gray-200);
    overflow-x: auto;
}

.tab-btn {
    flex: 1;
    padding: 1rem 1.5rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-all);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.tab-btn:hover {
    background: var(--surface-secondary);
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--primary-solid);
    border-bottom-color: var(--primary-solid);
    background: var(--surface-secondary);
}

/* Tab Content */
.tab-content {
    display: none;
    padding: 2rem;
}

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

.tab-content h3 {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.stat-card {
    background: var(--surface-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    padding: 1.5rem;
    transition: var(--transition-all);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    transition: var(--transition-all);
}

.stat-card.primary::before { background: var(--primary); }
.stat-card.secondary::before { background: var(--secondary); }
.stat-card.success::before { background: var(--success); }
.stat-card.info::before { background: var(--info); }
.stat-card.warning::before { background: var(--warning); }
.stat-card.accent::before { background: var(--accent); }

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-solid);
}

.stat-card .stat-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 1.25rem;
    color: var(--text-inverse);
}

.stat-card.primary .stat-icon { background: var(--primary); }
.stat-card.secondary .stat-icon { background: var(--secondary); }
.stat-card.success .stat-icon { background: var(--success); }
.stat-card.info .stat-icon { background: var(--info); }
.stat-card.warning .stat-icon { background: var(--warning); }
.stat-card.accent .stat-icon { background: var(--accent); }

.stat-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-value {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

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

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

.analysis-card {
    background: var(--surface-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    padding: 1.5rem;
    transition: var(--transition-all);
}

.analysis-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-solid);
}

.analysis-card h4 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--gray-200);
}

.metric-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-100);
}

.metric-item:last-child {
    border-bottom: none;
}

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

.metric-value {
    font-size: var(--text-sm);
    color: var(--primary-solid);
    font-weight: 600;
    font-family: 'JetBrains Mono', monospace;
}

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

.readability-card {
    background: var(--surface-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    padding: 1.5rem;
    transition: var(--transition-all);
}

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

.readability-score {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.score-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: conic-gradient(var(--primary-solid) 0deg, var(--gray-200) 0deg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    flex-shrink: 0;
}

.score-circle::before {
    content: '';
    position: absolute;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--surface-primary);
}

.score-value {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--primary-solid);
    position: relative;
    z-index: 1;
}

.score-info h4 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.score-description {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

.readability-metrics h4 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--gray-200);
}

.grade-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-100);
}

.grade-item:last-child {
    border-bottom: none;
}

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

.grade-value {
    font-size: var(--text-sm);
    color: var(--primary-solid);
    font-weight: 600;
}

/* Keywords Section */
.keywords-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.keyword-cloud,
.keyword-density {
    background: var(--surface-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    padding: 1.5rem;
}

.keyword-cloud h4,
.keyword-density h4 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--gray-200);
}

.keyword-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.keyword-tag {
    padding: 0.5rem 1rem;
    background: var(--surface-secondary);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--text-primary);
    position: relative;
    transition: var(--transition-all);
}

.keyword-tag:hover {
    background: var(--surface-tertiary);
    border-color: var(--primary-solid);
    transform: translateY(-1px);
}

.keyword-count {
    color: var(--primary-solid);
    font-weight: 600;
}

.density-chart {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.density-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem;
    background: var(--surface-secondary);
    border-radius: var(--radius-md);
}

.density-word {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-primary);
    min-width: 80px;
}

.density-progress {
    flex: 1;
    height: 8px;
    background: var(--gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.density-fill {
    height: 100%;
    background: var(--primary);
    border-radius: var(--radius-full);
    transition: var(--transition-all);
}

.density-percent {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--primary-solid);
    min-width: 40px;
    text-align: right;
}

/* Export Section */
.export-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.export-options,
.export-preview {
    background: var(--surface-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    padding: 1.5rem;
}

.export-options h4,
.export-preview h4 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--gray-200);
}

.export-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.export-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--surface-secondary);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition-all);
    font-size: var(--text-sm);
    color: var(--text-primary);
}

.export-btn:hover {
    background: var(--surface-tertiary);
    border-color: var(--primary-solid);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.export-btn i {
    font-size: 1.5rem;
    color: var(--primary-solid);
}

.preview-content {
    background: var(--surface-secondary);
    border-radius: var(--radius-md);
    padding: 1rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: var(--text-xs);
    color: var(--text-secondary);
    max-height: 300px;
    overflow-y: auto;
    white-space: pre-wrap;
}

.no-data {
    text-align: center;
    color: var(--text-tertiary);
    font-style: italic;
    padding: 2rem;
}

/* Action Buttons */
.actions-section {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-200);
}

.action-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-all);
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    min-width: 140px;
}

.action-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s;
}

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

.action-btn.primary {
    background: var(--primary);
    color: var(--text-inverse);
    box-shadow: var(--shadow-md);
}

.action-btn.primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.action-btn.secondary {
    background: var(--surface-primary);
    color: var(--text-primary);
    border: 2px solid var(--gray-300);
}

.action-btn.secondary:hover {
    border-color: var(--primary-solid);
    color: var(--primary-solid);
    transform: translateY(-1px);
}

.action-btn.success {
    background: var(--success);
    color: var(--text-inverse);
}

.action-btn.info {
    background: var(--info);
    color: var(--text-inverse);
}

/* Notification System */
.notification {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: var(--z-notification);
    transform: translateX(100%);
    transition: var(--transition-all);
    max-width: 400px;
}

.notification.show {
    transform: translateX(0);
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--surface-primary);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--gray-200);
    backdrop-filter: blur(10px);
}

.notification-icon {
    font-size: 1.25rem;
    color: #22c55e;
    flex-shrink: 0;
}

.notification-message {
    flex: 1;
    color: var(--text-primary);
    font-weight: 500;
    font-size: var(--text-sm);
}

.notification-close {
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    flex-shrink: 0;
}

.notification-close:hover {
    background: var(--gray-100);
    color: var(--text-primary);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .counter-main {
        grid-template-columns: 1fr;
    }
    
    .analysis-sidebar {
        order: -1;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .keywords-section {
        grid-template-columns: 1fr;
    }
    
    .export-section {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .tool-page {
        padding: 1rem;
    }
    
    .tool-container {
        padding: 1.5rem;
    }
    
    .tool-header h1 {
        font-size: var(--text-3xl);
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .features-bar {
        gap: 1rem;
        grid-template-columns: repeat(2, 1fr);
        display: grid;
    }
    
    .analysis-sidebar {
        grid-template-columns: 1fr;
    }
    
    .samples-grid {
        grid-template-columns: 1fr;
    }
    
    .quick-stats-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.5rem;
    }
    
    .analysis-tabs {
        flex-wrap: wrap;
    }
    
    .tab-btn {
        flex: none;
        min-width: 120px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .export-buttons {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .action-btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .tool-header h1 {
        font-size: var(--text-2xl);
    }
    
    .features-bar {
        grid-template-columns: 1fr;
    }
    
    .feature-item {
        font-size: var(--text-xs);
        padding: 0.5rem 0.75rem;
    }
    
    .quick-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    #text-input {
        min-height: 200px;
        padding: 1rem;
    }
    
    .live-count {
        position: static;
        margin-top: 1rem;
        justify-content: center;
    }
    
    .notification {
        left: 1rem;
        right: 1rem;
        top: 1rem;
        max-width: none;
        transform: translateY(-100%);
    }
    
    .notification.show {
        transform: translateY(0);
    }
}

/* Print Styles */
@media print {
    .tool-page::before,
    .action-buttons,
    .notification {
        display: none !important;
    }
    
    .tool-container {
        box-shadow: none;
        border: 1px solid #000;
        margin: 0;
        padding: 1rem;
    }
    
    .tool-header h1 {
        color: #000;
        -webkit-text-fill-color: initial;
    }
    
    .tab-content {
        display: block !important;
        page-break-inside: avoid;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .tool-page::before {
        animation: none;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --primary-solid: #0000ff;
        --text-primary: #000000;
        --surface-primary: #ffffff;
        --gray-200: #000000;
    }
    
    .stat-card,
    .analysis-card,
    .readability-card {
        border: 2px solid #000;
    }
}