/* ==================== CSS Variables ==================== */
:root {
    /* Light Theme Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #1a1a1a;
    --text-secondary: #4a5568;
    --text-tertiary: #718096;
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-hover: #4f46e5; /* Added for hover states */
    --accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    
    /* Typography */
    --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    --font-size-base: 16px;
    --line-height-base: 1.7;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
    
    /* Header Height */
    --header-height: auto;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --border-color: #334155;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.6);
}

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-base);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: var(--line-height-base);
    transition: background-color var(--transition-base), color var(--transition-base);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Font Size Modifiers */
body.font-small {
    font-size: 14px;
}

body.font-large {
    font-size: 18px;
}

body.font-xlarge {
    font-size: 20px;
}

/* Ensure markdown content scales */
body.font-small .markdown-body {
    font-size: 14px;
}

body.font-large .markdown-body {
    font-size: 18px;
}

body.font-xlarge .markdown-body {
    font-size: 20px;
}

/* ==================== Header ==================== */
/* ==================== Header ==================== */
.header {
    background: #fcf9f1;
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-lg);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-icon {
    font-size: 2rem;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.header-controls {
    display: flex;
    gap: var(--spacing-sm);
}

.control-btn {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 1rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 500;
}

.control-btn:hover:not(:disabled) {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.control-btn:active:not(:disabled) {
    transform: translateY(0);
}


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

/* ==================== Main Content ==================== */
.main-content {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-sm);
    width: 100%;
}

/* ==================== Landing Page / SEO Sections ==================== */
.landing-page {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    animation: fadeIn var(--transition-base);
}

.hero-section {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg) 0;
}

.hero-section h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.seo-section {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.seo-section h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.feature-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-sm);
}

.feature-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.how-it-works-section p {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

/* refined faq styles */
.faq-item {
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    overflow: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
    border-color: var(--accent-primary);
}

.faq-item[open] {
    background: var(--bg-primary); /* Keep white/dark bg */
    box-shadow: var(--shadow-md);
    border-color: var(--accent-secondary);
}

.faq-item summary {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    padding: 1.25rem;
    cursor: pointer;
    list-style: none;
    position: relative;
    padding-right: 3.5rem; /* Space for icon */
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
}

/* Custom chevron indicator */
.faq-item summary::after {
    content: '';
    position: absolute;
    right: 1.25rem;
    width: 1.5rem;
    height: 1.5rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236366f1' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    transition: transform 0.3s ease;
}

.faq-item[open] summary::after {
    transform: rotate(180deg);
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-content {
    padding: 0 1.25rem 1.25rem 1.25rem;
    border-top: 1px solid transparent;
    animation: slideDown 0.3s ease-out;
}

.faq-item[open] .faq-content {
    border-top-color: var(--border-color);
}

.faq-content p {
    color: var(--text-secondary);
    margin: 0 0 1rem 0;
    line-height: 1.7;
}

.faq-content p:last-child {
    margin-bottom: 0;
}

.faq-content ul {
    margin: 0;
    padding-left: 1.5rem;
    color: var(--text-secondary);
}

.faq-content li {
    margin-bottom: 0.5rem;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== ALTERNATIVE UI STYLES (UNCOMMENT TO USE) ==================== */
/*
============================================
FEATURE FLAG: UI_STYLE = "alt"
To activate alternative UI:
1. Uncomment this entire CSS section
2. Comment out/uncomment corresponding HTML sections in index.html
3. The alternative UI uses a beige/cream theme inspired by the provided designs
============================================

:root {
    --bg-alt-primary: #faf8f5;
    --bg-alt-secondary: #f5f1eb;
    --bg-alt-card: #ffffff;
    --text-alt-primary: #1a1a1a;
    --text-alt-secondary: #6b7280;
    --accent-alt-orange: #ea580c;
    --accent-alt-blue: #6366f1;
    --accent-alt-red: #ef4444;
    --border-alt: #e5e0d8;
}

[data-theme="dark"] {
    --bg-alt-primary: #1a1a1a;
    --bg-alt-secondary: #2d2d2d;
    --bg-alt-card: #242424;
    --text-alt-primary: #f5f1eb;
    --text-alt-secondary: #9ca3af;
    --border-alt: #3d3d3d;
}

.landing-page {
    background: var(--bg-alt-primary) !important;
}

.hero-section-alt {
    text-align: center;
    padding: 3rem 2rem 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title-alt {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    color: var(--text-alt-primary);
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-accent {
    color: var(--accent-alt-orange);
    text-decoration: underline;
    text-decoration-thickness: 4px;
    text-underline-offset: 8px;
}

.hero-subtitle-alt {
    font-size: 1.125rem;
    color: var(--text-alt-secondary);
    line-height: 1.7;
    max-width: 700px;
    margin: 0 auto;
}

.upload-area-alt {
    max-width: 800px;
    margin: 3rem auto;
    padding: 0 1.5rem;
}

.upload-content-alt {
    background: var(--bg-alt-card);
    border: 3px solid var(--text-alt-primary);
    border-radius: 32px;
    padding: 4rem 3rem;
    text-align: center;
    transition: all 0.3s ease;
}

.upload-content-alt:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.upload-icon-alt {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
    color: var(--text-alt-secondary);
}

.upload-badge {
    position: absolute;
    bottom: -4px;
    right: -4px;
    width: 32px;
    height: 32px;
    background: #fbbf24;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    border: 3px solid var(--bg-alt-card);
}

.upload-title-alt {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-alt-primary);
    margin-bottom: 1rem;
}

.upload-subtitle-alt {
    font-size: 1rem;
    color: var(--text-alt-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

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

.browse-btn-alt {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 12px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
}

.browse-btn-alt.primary {
    background: var(--accent-alt-orange);
    color: white;
    border-color: var(--accent-alt-orange);
}

.browse-btn-alt.primary:hover {
    background: #dc2626;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(234, 88, 12, 0.3);
}

.browse-btn-alt.secondary {
    background: transparent;
    color: var(--text-alt-primary);
    border-color: var(--text-alt-primary);
}

.browse-btn-alt.secondary:hover {
    background: var(--text-alt-primary);
    color: var(--bg-alt-card);
}

.browse-btn-alt svg {
    width: 20px;
    height: 20px;
}

.features-section-alt {
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.features-title-alt {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-alt-primary);
    margin-bottom: 3rem;
}

.features-grid-alt {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.feature-card-alt {
    background: var(--bg-alt-card);
    border: 2px solid var(--border-alt);
    border-radius: 24px;
    padding: 2.5rem 2rem;
    text-align: left;
    transition: all 0.3s ease;
}

.feature-card-alt:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    border-color: var(--text-alt-primary);
}

.feature-icon-alt {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.feature-card-alt h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-alt-primary);
    margin-bottom: 0.75rem;
}

.feature-card-alt p {
    font-size: 0.95rem;
    color: var(--text-alt-secondary);
    line-height: 1.6;
}

@media (max-width: 768px) {
    .features-grid-alt {
        grid-template-columns: 1fr;
    }
    
    .upload-content-alt {
        padding: 3rem 2rem;
    }
    
    .upload-buttons-alt {
        flex-direction: column;
    }
    
    .browse-btn-alt {
        width: 100%;
        justify-content: center;
    }
}
*/
/* ==================== END ALTERNATIVE UI STYLES ==================== */

/* ==================== Upload Area ==================== */
.upload-area {
    border: 3px dashed var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-base);
    background: var(--bg-primary); /* Changed to primary to pop against secondary bg */
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

.upload-area.dragover {
    border-color: var(--accent-primary);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

.upload-content {
    max-width: 500px;
}

.upload-icon {
    font-size: 5rem;
    margin-bottom: var(--spacing-md);
    animation: float 3s ease-in-out infinite;
}

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

.upload-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.upload-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.browse-btn {
    background: var(--accent-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    font-family: var(--font-base);
    margin: 0 var(--spacing-xs);
}

.browse-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.browse-btn:active {
    transform: translateY(-1px);
}

.browse-btn.secondary-btn {
    background: var(--bg-primary);
    color: var(--accent-primary);
    border: 2px solid var(--accent-primary);
}

.browse-btn.secondary-btn:hover {
    background: var(--accent-primary);
    color: white;
}

.upload-hint {
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

/* ==================== Preview Container ==================== */
.preview-container {
    animation: fadeIn var(--transition-slow);
}

.preview-container.hidden {
    display: none;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.file-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.file-name {
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--text-primary);
}

.file-size {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    background: var(--bg-tertiary);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
}

.reading-time {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ==================== Markdown Content Styles ==================== */
.markdown-content {
    background: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    max-width: 900px;
    margin: 0 auto;
    transition: all var(--transition-base);
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-top: 2em;
    margin-bottom: 0.75em;
    color: var(--text-primary);
    position: relative;
}

.markdown-content h1 {
    font-size: 2.5rem;
    border-bottom: 3px solid var(--accent-primary);
    padding-bottom: 0.5rem;
    margin-top: 0;
}

.markdown-content h2 {
    font-size: 2rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.4rem;
}

.markdown-content h3 {
    font-size: 1.5rem;
}

.markdown-content h4 {
    font-size: 1.25rem;
}

.markdown-content h5 {
    font-size: 1.125rem;
}

.markdown-content h6 {
    font-size: 1rem;
    color: var(--text-secondary);
}

.markdown-content p {
    margin-bottom: 1.25em;
    color: var(--text-secondary);
}

.markdown-content a {
    color: var(--accent-primary);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all var(--transition-fast);
}

.markdown-content a:hover {
    border-bottom-color: var(--accent-primary);
}

.markdown-content strong {
    font-weight: 600;
    color: var(--text-primary);
}

.markdown-content em {
    font-style: italic;
}

.markdown-content code {
    background: var(--bg-tertiary);
    padding: 0.2em 0.4em;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.9em;
    color: var(--accent-secondary);
}

.markdown-content pre {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: 1.5em 0;
    border-left: 4px solid var(--accent-primary);
    box-shadow: var(--shadow-sm);
}

.markdown-content pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.markdown-content blockquote {
    border-left: 4px solid var(--accent-primary);
    padding-left: var(--spacing-md);
    margin: 1.5em 0;
    color: var(--text-secondary);
    font-style: italic;
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.markdown-content ul,
.markdown-content ol {
    margin: 1.25em 0;
    padding-left: 2em;
}

.markdown-content li {
    margin-bottom: 0.5em;
    color: var(--text-secondary);
}

.markdown-content li::marker {
    color: var(--accent-primary);
}

.markdown-content hr {
    border: none;
    border-top: 2px solid var(--border-color);
    margin: 2em 0;
}

.markdown-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: 1.5em 0;
    box-shadow: var(--shadow-md);
}

.markdown-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5em 0;
    box-shadow: var(--shadow-sm);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.markdown-content th,
.markdown-content td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.markdown-content th {
    background: var(--bg-tertiary);
    font-weight: 600;
    color: var(--text-primary);
}

.markdown-content tr:hover {
    background: var(--bg-tertiary);
}

/* ==================== JSON Viewer Container ==================== */
.json-viewer-container {
    height: calc(100vh - 200px); /* Increased to account for actual header + padding */
    width: 100%;
    display: flex;
    flex-direction: column;
}

.json-viewer-container.hidden {
    display: none;
}

/* ==================== JSON Three-Panel Layout ==================== */
.json-panels {
    display: flex;
    gap: 0;
    height: 100%;
    min-height: 0; /* Critical: allows grid children to scroll */
}

.json-input-panel {
    width: 50%;
    min-width: 100px;
    max-width: 95%;
}

.json-viewer-panel {
    width: 600px;
    min-width: 50px;
}

.json-code-panel {
    flex: 1; /* Use all remaining space */
    min-width: 50px;
}

.json-panels.code-panel-collapsed .json-code-panel {
    width: 0;
    min-width: 0;
}

.json-panel {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: all var(--transition-base);
    min-height: 0; /* Critical for flex children scrolling */
    height: 100%; /* Force full height */
}

/* Specific styling for the viewer panel to enable scrolling */
.json-viewer-panel {
    overflow: hidden; /* Hide overflow on panel, let child scroll */
}

/* ==================== Resize Handle ==================== */
.resize-handle {
    width: 8px;
    z-index: 20;
    background: var(--border-color);
    cursor: col-resize;
    position: relative;
    transition: background var(--transition-fast);
    flex-shrink: 0;
}

.resize-handle:hover {
    background: var(--accent-primary);
}

.resize-handle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 3px;
    height: 40px;
    background: var(--bg-primary);
    border-radius: 2px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.resize-handle:hover::before {
    opacity: 1;
}

.json-panel.collapsed {
    width: 0;
    min-width: 0;
    padding: 0;
    opacity: 0;
}

/* ==================== Panel Headers ==================== */
.panel-header {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.panel-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.panel-controls {
    display: flex;
    gap: var(--spacing-xs);
}

.panel-btn {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-primary);
    font-weight: 500;
}

.panel-btn:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-1px);
}

.panel-btn.toggle-btn {
    font-size: 1.25rem;
    padding: 0.25rem 0.5rem;
}

/* ==================== JSON Input Panel ==================== */
.json-input-wrapper {
    flex: 1;
    display: flex;
    overflow: hidden;
    background: var(--bg-primary);
    min-height: 0;
    position: relative; /* For absolute positioning of error marker */
}

.line-numbers {
    padding: var(--spacing-md) var(--spacing-xs);
    background: var(--bg-tertiary);
    color: var(--text-tertiary);
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    line-height: 1.6;
    text-align: right;
    user-select: none;
    overflow-y: hidden;
    border-right: 1px solid var(--border-color);
    min-width: 50px;
}

.line-numbers div {
    line-height: 1.6;
}

/* Error Marker Overlay */
.error-marker {
    position: absolute;
    left: 50px; /* After line numbers */
    pointer-events: none; /* Don't block textarea interaction */
    z-index: 10;
    background: rgba(239, 68, 68, 0.2);
    border-left: 3px solid #ef4444;
    width: calc(100% - 50px);
}

.error-marker::before {
    content: '❌';
    position: absolute;
    left: 8px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: translateY(-50%) scale(1); }
    50% { opacity: 0.6; transform: translateY(-50%) scale(1.1); }
}


.json-input-textarea {
    flex: 1;
    padding: var(--spacing-md);
    border: none;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    line-height: 1.6;
    resize: none;
    outline: none;
    overflow-y: auto; /* Enable vertical scrolling for large datasets */
    overflow-x: hidden; /* Hide horizontal scrolling */
    min-height: 0; /* Allow flex shrinking */
    white-space: pre-wrap; /* Wrap long lines */
    word-wrap: break-word; /* Break long words */
}

.json-stats {
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-color);
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.json-stats.hidden {
    display: none;
}

/* ==================== View Mode Switcher ==================== */
.view-mode-switcher {
    display: flex;
    gap: var(--spacing-xs);
}

.view-mode-btn {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
    font-weight: 500;
}

.view-mode-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

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

/* ==================== JSON Visualization Area ==================== */
/* ==================== JSON Visualization Area ==================== */
#jsonVisualization {
    flex: 1;
    overflow-y: auto;
    overflow-x: auto;
    min-height: 0;
    padding: var(--spacing-md);
    background: var(--bg-primary);
    width: 100%;
}

.visualization-placeholder,
.code-helper-placeholder {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-tertiary);
}

.visualization-placeholder p:first-child,
.code-helper-placeholder p:first-child {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.placeholder-hint {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

/* ==================== Code Helper Styles ==================== */
.code-helper-content {
    flex: 1;
    overflow-y: auto !important;
    overflow-x: auto !important;
    padding: var(--spacing-md);
    background: var(--bg-primary);
    min-height: 0;
    height: 100%;
}

.code-helper {
    flex: 1;
    overflow-y: auto !important;
    overflow-x: hidden;
    padding: var(--spacing-md);
    background: var(--bg-primary);
    max-height: calc(100vh - 200px);
}

.code-examples {
    width: 100%;
}

.code-path-info {
    background: var(--bg-tertiary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    border-left: 3px solid var(--accent-primary);
}

.code-path-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.code-path-value {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-primary);
    word-wrap: break-word;
}

.code-example {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    transition: all var(--transition-fast);
}

.code-example:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-sm);
}

.code-example-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.code-example-title {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.code-copy-btn {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.25rem 0.5rem;
    cursor: pointer;
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.code-copy-btn:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    transform: scale(1.1);
}

.code-example-code {
    margin: 0;
    padding: var(--spacing-md);
    background: var(--bg-primary);
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    line-height: 1.5;
}

.code-example-code code {
    color: var(--text-primary);
    white-space: pre;
}

.code-example-desc {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ==================== Grid Table Styles ==================== */
.json-grid-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    background: var(--bg-primary);
    box-shadow: var(--shadow-sm);
}

.json-grid-table th {
    background: var(--bg-secondary);
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 10;
    user-select: none;
    transition: background-color var(--transition-fast);
}

.json-grid-table th.sortable {
    cursor: pointer;
}

.json-grid-table th.sortable:hover {
    background: var(--bg-tertiary);
    color: var(--accent-primary);
}

.json-grid-table th.sorted {
    background: var(--accent-primary);
    color: white;
}

.json-grid-table td {
    padding: 10px 16px;
    border: 1px solid var(--border-color);
    vertical-align: middle;
    transition: background-color var(--transition-fast);
}

.json-grid-table tr:hover td {
    background: var(--bg-secondary);
}

/* Type-specific cell styling */
.json-grid-table td.cell-number {
    text-align: right;
    font-family: var(--font-mono);
    background: #e3f2fd;
    color: #1565c0;
    font-weight: 500;
}

[data-theme="dark"] .json-grid-table td.cell-number {
    background: #1a237e;
    color: #82b1ff;
}

.json-grid-table td.cell-string {
    background: #f5f5f5;
    color: var(--text-primary);
}

[data-theme="dark"] .json-grid-table td.cell-string {
    background: #263238;
}

.json-grid-table td.cell-boolean {
    text-align: center;
    font-size: 16px;
    font-weight: bold;
    background: #e8f5e9;
}

[data-theme="dark"] .json-grid-table td.cell-boolean {
    background: #1b5e20;
}

.json-grid-table td.cell-null {
    text-align: center;
    color: var(--text-tertiary);
    font-style: italic;
    background: #fafafa;
}

[data-theme="dark"] .json-grid-table td.cell-null {
    background: #212121;
}

.json-grid-table td.cell-object,
.json-grid-table td.cell-array {
    background: #f3e5f5;
    color: #6a1b9a;
}

[data-theme="dark"] .json-grid-table td.cell-object,
[data-theme="dark"] .json-grid-table td.cell-array {
    background: #4a148c;
    color: #ce93d8;
}

/* Expandable cell styling */
.json-grid-table td.expandable-cell {
    cursor: pointer;
    user-select: none;
}

.json-grid-table td.expandable-cell:hover {
    background: #e1bee7 !important;
}

[data-theme="dark"] .json-grid-table td.expandable-cell:hover {
    background: #6a1b9a !important;
}

.expand-btn {
    display: inline-block;
    width: 20px;
    height: 20px;
    line-height: 18px;
    text-align: center;
    border: 1px solid #9c27b0;
    border-radius: 3px;
    margin-right: 8px;
    font-size: 14px;
    font-weight: bold;
    color: #9c27b0;
    background: white;
    transition: all var(--transition-fast);
}

[data-theme="dark"] .expand-btn {
    background: var(--bg-tertiary);
    color: #ce93d8;
    border-color: #ce93d8;
}

.expand-btn:hover {
    background: #9c27b0;
    color: white;
    transform: scale(1.1);
}

.expanded-content {
    margin-top: 8px;
    padding: 12px;
    background: white;
    border: 1px solid #9c27b0;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 11px;
    white-space: pre-wrap;
    max-height: 200px;
    overflow: auto;
    color: var(--text-primary);
}

[data-theme="dark"] .expanded-content {
    background: var(--bg-tertiary);
    border-color: #ce93d8;
}

/* Nested table styles */
.nested-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
    margin: 0;
    background: white;
}

[data-theme="dark"] .nested-table {
    background: var(--bg-secondary);
}

.nested-table th {
    background: #f3e5f5;
    color: #6a1b9a;
    padding: 8px 12px;
    text-align: left;
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    border: 1px solid #e1bee7;
}

[data-theme="dark"] .nested-table th {
    background: #4a148c;
    color: #ce93d8;
    border-color: #6a1b9a;
}

.nested-table td {
    padding: 6px 12px;
    border: 1px solid #e1bee7;
    vertical-align: middle;
}

[data-theme="dark"] .nested-table td {
    border-color: #6a1b9a;
}

.nested-table tr:hover td {
    background: #f8f4f9;
}

[data-theme="dark"] .nested-table tr:hover td {
    background: #5a1a7a;
}

.nested-index-cell,
.nested-key-cell {
    font-weight: 600;
    color: #6a1b9a;
    width: 30%;
    font-family: var(--font-mono);
    font-size: 11px;
}

[data-theme="dark"] .nested-index-cell,
[data-theme="dark"] .nested-key-cell {
    color: #ce93d8;
}

.nested-value-cell {
    color: var(--text-primary);
}

.nested-compact {
    color: #9c27b0;
    font-style: italic;
    font-size: 11px;
}

[data-theme="dark"] .nested-compact {
    color: #ce93d8;
}


/* Table wrapper for scrolling */
.table-wrapper {
    overflow-x: auto;
    overflow-y: auto;
    max-height: 70vh;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .json-grid-table {
        font-size: 11px;
    }
    
    .json-grid-table th,
    .json-grid-table td {
        padding: 8px 12px;
    }
    
    .expand-btn {
        width: 18px;
        height: 18px;
        font-size: 12px;
    }
}


/* Radio Group Styles for Modals */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 20px 0;
}

.radio-label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.radio-label:hover {
    border-color: var(--accent-primary);
    background: var(--bg-tertiary);
}

.radio-label input[type="radio"] {
    margin-top: 4px;
    accent-color: var(--accent-primary);
}

.radio-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.radio-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
}

.radio-desc {
    color: var(--text-secondary);
    font-size: 12px;
    line-height: 1.4;
}

code {
    background: var(--bg-tertiary);
    padding: 2px 4px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 11px;
}

.tree-view {
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.tree-node-wrapper {
    margin: 0.25rem 0;
}

.tree-node {
    display: flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.tree-node:hover {
    background: var(--bg-tertiary);
}

.tree-toggle {
    cursor: pointer;
    user-select: none;
    margin-right: 0.5rem;
    color: var(--accent-primary);
    font-size: 0.75rem;
}

.tree-spacer {
    display: inline-block;
    width: 1rem;
}

.tree-key {
    color: var(--accent-primary);
    font-weight: 600;
    cursor: pointer;
}

.tree-key:hover {
    text-decoration: underline;
}

.tree-type {
    color: var(--text-tertiary);
    font-size: 0.75rem;
    margin-left: 0.25rem;
}

.tree-value {
    margin-left: 0.5rem;
}

.tree-value-string {
    color: #22c55e;
}

.tree-value-number {
    color: #3b82f6;
}

.tree-value-boolean {
    color: #f59e0b;
}

.tree-value-null {
    color: #94a3b8;
}

.tree-children {
    margin-left: 1rem;
    border-left: 1px solid var(--border-color);
    padding-left: 0.5rem;
}

/* ==================== Prettier View Styles ==================== */
.prettier-view {
    font-family: var(--font-mono);
}

.prettier-pre {
    margin: 0;
    padding: var(--spacing-md);
    background: var(--bg-primary);
    overflow-x: auto;
}

.prettier-code {
    font-size: 0.875rem;
    line-height: 1.6;
}

.json-key {
    color: #8b5cf6;
    font-weight: 600;
}

.json-key.clickable {
    cursor: pointer;
    transition: all var(--transition-fast);
}

.json-key.clickable:hover {
    text-decoration: underline;
    color: var(--accent-primary);
}

.json-string {
    color: #22c55e;
}

.json-number {
    color: #3b82f6;
}

.json-boolean {
    color: #f59e0b;
}

.json-null {
    color: #94a3b8;
}

/* ==================== Graph & Mind Map Views ==================== */
.graph-view,
.mindmap-view {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 500px;
    position: relative;
}

.graph-view svg,
.mindmap-view svg {
    border-radius: var(--radius-md);
}

.graph-fullscreen {
    position: fixed !important;
    top: 0;
    left: 0;
    width: 100vw !important;
    height: 100vh !important;
    z-index: 1000;
    background: var(--bg-primary);
    margin: 0 !important;
    padding: 0 !important;
    border-radius: 0 !important;
    max-width: none !important;
    max-height: none !important;
}

.graph-fullscreen-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    padding: 0.5rem 1rem;
    cursor: pointer;
    z-index: 10;
}

/* ==================== Modal Styling ==================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease-in-out;
}

.modal:not(.hidden) {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-xl);
    border-radius: var(--radius-lg);
    width: 90%;
    width: 90%;
    max-width: 900px;
    display: flex;
    flex-direction: column;
    max-height: 90vh;
}

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

.modal-header h2 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-tertiary);
    line-height: 1;
}

.modal-close:hover {
    color: var(--text-primary);
}

.paste-textarea {
    padding: var(--spacing-md);
    border: none;
    resize: vertical;
    min-height: 400px;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    outline: none;
    width: 100%;
    line-height: 1.5;
}

.modal-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    border-bottom-left-radius: var(--radius-lg);
    border-bottom-right-radius: var(--radius-lg);
}

.modal-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
}

.modal-btn.primary {
    background: var(--accent-primary);
    color: white;
    border: none;
}

.modal-btn.primary:hover {
    background: var(--accent-hover);
}

.modal-btn.secondary {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.modal-btn.secondary:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* ==================== Utilities ==================== */
.hidden { display: none !important; }

/* ==================== Mobile Responsiveness ==================== */
@media (max-width: 1024px) {
    /* Hide code panel on tablets */
    .json-code-panel {
        display: none !important;
    }
    
    #resizeHandle2 {
        display: none;
    }
    
    .json-panels {
        flex-direction: row;
    }
    
    .json-input-panel {
        width: 40%;
        min-width: 250px;
    }
    
    .json-viewer-panel {
        flex: 1;
        width: auto;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: auto;
        --spacing-md: 0.75rem;
        --spacing-sm: 0.5rem;
    }

    .header-content {
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--spacing-sm);
        padding: var(--spacing-sm);
    }
    
    .logo {
        font-size: 1.25rem;
    }

    .main-content {
        padding: var(--spacing-sm);
    }

    /* Stack panels vertically on mobile */
    .json-panels {
        flex-direction: column !important;
        height: auto;
        min-height: 0;
    }
    
    /* Hide resize handles on mobile */
    .resize-handle {
        display: none !important;
    }

    .json-panel {
        height: 400px;
        margin-bottom: var(--spacing-md);
        width: 100% !important;
        min-width: 100% !important;
        max-width: 100% !important;
    }
    
    .json-input-panel {
        height: 300px;
        order: 2;
    }

    .json-viewer-panel {
        order: 1;
        height: 500px;
    }
    
    .json-code-panel {
        display: none !important;
    }

    .header-controls {
        gap: 4px;
    }
    
    .control-btn {
        padding: 0.5rem;
        font-size: 0.875rem;
    }
    
    .upload-area {
        min-height: 200px;
        padding: var(--spacing-md);
    }

    .upload-icon {
        font-size: 2rem;
    }

    .upload-title {
        font-size: 1.25rem;
    }
    
    /* Stack view mode buttons */
    .view-mode-switcher {
        overflow-x: auto;
        padding-bottom: 4px;
        flex-wrap: nowrap;
    }
    
    .view-mode-btn {
        white-space: nowrap;
        font-size: 0.75rem;
        padding: 0.25rem 0.5rem;
    }
    
    /* Adjust line numbers for mobile */
    .line-numbers {
        min-width: 35px;
        padding: var(--spacing-sm) 0.25rem;
        font-size: 0.75rem;
    }
    
    .json-input-textarea {
        font-size: 0.75rem;
        padding: var(--spacing-sm);
    }
}

/* FAQ Toggle Styles */
.faq-toggle-btn {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.faq-toggle-btn:hover {
    background: var(--bg-tertiary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.faq-toggle-btn .icon {
    font-size: 1rem;
    transition: transform 0.3s ease;
}

.faq-toggle-btn.active .icon {
    transform: rotate(180deg);
}

.faq-container {
    transition: opacity 0.3s ease;
}

.faq-container.hidden {
    display: none;
}

/* ==================== JSON Visualization Font Scaling ==================== */

/* Small Font (12px base) */
body.font-small .tree-view,
body.font-small .prettier-code,
body.font-small .json-input-textarea,
body.font-small .view-mode-btn,
body.font-small .panel-btn {
    font-size: 0.75rem; /* 12px */
}

/* Large Font (18px base) */
body.font-large .tree-view,
body.font-large .prettier-code,
body.font-large .json-input-textarea,
body.font-large .view-mode-btn,
body.font-large .panel-btn {
    font-size: 1.125rem; /* 18px */
}

/* Extra Large Font (20px base) */
body.font-xlarge .tree-view,
body.font-xlarge .prettier-code,
body.font-xlarge .json-input-textarea,
body.font-xlarge .view-mode-btn,
body.font-xlarge .panel-btn {
    font-size: 1.25rem; /* 20px */
}

/* Adjustments for Tree Metadata */
body.font-large .tree-type,
body.font-large .tree-toggle { font-size: 0.9em; }
body.font-xlarge .tree-type,
body.font-xlarge .tree-toggle { font-size: 0.9em; }

/* Adjustments for Table View */
body.font-large .nested-table { font-size: 14px; }
body.font-xlarge .nested-table { font-size: 16px; }

body.font-large .nested-table th,
body.font-large .nested-table td { padding: 10px 14px; }
body.font-xlarge .nested-table th,
body.font-xlarge .nested-table td { padding: 12px 16px; }

/* Ensure button visibility */
.bg-mustard {
    background-color: #F2CC8F !important;
}

/* ==================== Easter Egg Animations ==================== */
.blushing {
    background-color: #ffb7b2 !important; /* Pastel Pink */
    transform: scale(1.1) rotate(10deg);
    border-color: #e2725b !important;
}

.shake {
    animation: shake 0.5s cubic-bezier(.36,.07,.19,.97) both;
}

@keyframes shake {
    10%, 90% { transform: translate3d(-1px, 0, 0); }
    20%, 80% { transform: translate3d(2px, 0, 0); }
    30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
    40%, 60% { transform: translate3d(4px, 0, 0); }
}