:root {
    /* Color Palette - Dark Mode with Vibrant Accents */
    --bg-primary: #0a0e27;
    --bg-secondary: #151b3d;
    --bg-tertiary: #1e2749;
    --bg-glass: rgba(30, 39, 73, 0.7);
    --bg-glass-dark: rgba(15, 21, 45, 0.8);

    /* Gradient Colors */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-success: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    --gradient-warning: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-info: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);

    /* Accent Colors */
    --accent-primary: #667eea;
    --accent-secondary: #764ba2;
    --accent-success: #38ef7d;
    --accent-warning: #f5576c;
    --accent-info: #4facfe;

    /* Text Colors */
    --text-primary: #e8eaf6;
    --text-secondary: #b4b9d6;
    --text-muted: #6b7394;

    /* Border & Shadow */
    --border-color: rgba(181, 185, 214, 0.1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px rgba(102, 126, 234, 0.3);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ============================================
   Global Reset & Base Styles
============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.1) 0%, transparent 50%);
    z-index: -1;
    animation: bgPulse 15s ease-in-out infinite;
}

@keyframes bgPulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

/* ============================================
   Typography
============================================ */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-secondary);
}

/* ============================================
   Layout
============================================ */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.header {
    padding: var(--spacing-lg) 0;
    background: var(--bg-glass-dark);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stats-bar {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-md) 0;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-info);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   Cards - Glassmorphism
============================================ */

.card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

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

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.card-body {
    color: var(--text-secondary);
}

/* ============================================
   Buttons
============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width var(--transition-slow), height var(--transition-slow);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
}

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

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

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-icon {
    padding: 0.5rem;
    border-radius: var(--radius-sm);
}

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

.btn:active {
    transform: translateY(0);
}

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

/* ============================================
   Forms
============================================ */

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-primary);
}

.form-input,
.form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

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

/* ============================================
   Grid System
============================================ */

.grid {
    display: grid;
    gap: var(--spacing-md);
}

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

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {

    .grid-3,
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Modal
============================================ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 14, 39, 0.9);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

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

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

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

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

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

/* ============================================
   Badges & Indicators
============================================ */

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
}

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

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

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

.badge-secondary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

/* Status indicators */
.status-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: var(--spacing-xs);
}

.status-active {
    background: var(--accent-success);
    box-shadow: 0 0 10px var(--accent-success);
    animation: pulse 2s infinite;
}

.status-paused {
    background: var(--text-muted);
}

.status-error {
    background: var(--accent-warning);
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* ============================================
   Utilities
============================================ */

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-muted {
    color: var(--text-muted);
}

.text-primary {
    color: var(--accent-primary);
}

.text-success {
    color: var(--accent-success);
}

.text-warning {
    color: var(--accent-warning);
}

.mt-1 {
    margin-top: var(--spacing-sm);
}

.mt-2 {
    margin-top: var(--spacing-md);
}

.mt-3 {
    margin-top: var(--spacing-lg);
}

.mb-1 {
    margin-bottom: var(--spacing-sm);
}

.mb-2 {
    margin-bottom: var(--spacing-md);
}

.mb-3 {
    margin-bottom: var(--spacing-lg);
}

.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

.hidden {
    display: none !important;
}

/* ============================================
   Scrollbar Styling
============================================ */

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-secondary);
}

/* ============================================
   Loading Spinner
============================================ */

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--bg-tertiary);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ============================================
   Comparison Viewer Specific
============================================ */

.comparison-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.comparison-panel {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    position: relative;
}

.comparison-label {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    background: var(--bg-glass-dark);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    z-index: 1;
}

.comparison-image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

/* ============================================
   Diff Viewer
============================================ */

.diff-viewer {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    overflow-x: auto;
}

.diff-line {
    padding: 0.25rem 0.5rem;
    border-left: 3px solid transparent;
}

.diff-line-added {
    background: rgba(56, 239, 125, 0.1);
    border-left-color: var(--accent-success);
}

.diff-line-removed {
    background: rgba(245, 87, 108, 0.1);
    border-left-color: var(--accent-warning);
}

.diff-line-context {
    color: var(--text-muted);
}

/* ============================================
   Toast Notifications
============================================ */

.toast-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    min-width: 300px;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast-success {
    border-left: 4px solid var(--accent-success);
}

.toast-error {
    border-left: 4px solid var(--accent-warning);
}

.toast-info {
    border-left: 4px solid var(--accent-info);
}

/* ============================================
   Timeline
============================================ */

.timeline-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 28px;
    top: 60px;
    bottom: -20px;
    width: 2px;
    background: var(--border-color);
}

.timeline-item:last-child::before {
    display: none;
}

.timeline-icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    position: relative;
    z-index: 1;
}

.timeline-snapshot .timeline-icon {
    background: var(--gradient-info);
    border-color: var(--accent-info);
}

.timeline-change .timeline-icon {
    background: var(--gradient-warning);
    border-color: var(--accent-warning);
}

.timeline-note .timeline-icon {
    background: var(--gradient-success);
    border-color: var(--accent-success);
}

.timeline-content {
    flex: 1;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: transform var(--transition-fast);
}

.timeline-content:hover {
    transform: translateX(4px);
}

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

.timeline-title {
    font-weight: 600;
    font-size: 1.1rem;
}

.timeline-time {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.timeline-body {
    color: var(--text-secondary);
}

/* ============================================
   Markdown Content
============================================ */

.markdown-content {
    line-height: 1.7;
}

.markdown-content h2,
.markdown-content h3,
.markdown-content h4 {
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.markdown-content h2 {
    font-size: 1.5rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.markdown-content h3 {
    font-size: 1.25rem;
}

.markdown-content h4 {
    font-size: 1.1rem;
}

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

.markdown-content em {
    color: var(--accent-info);
}

.markdown-content a {
    color: var(--accent-primary);
    text-decoration: underline;
}

.markdown-content a:hover {
    color: var(--accent-secondary);
}

.markdown-content code {
    background: var(--bg-tertiary);
    padding: 0.2rem 0.4rem;
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
}

/* ============================================
   Form Textarea
============================================ */

textarea.form-input {
    resize: vertical;
    min-height: 100px;
    font-family: inherit;
}

/* ============================================
   Chart Containers
============================================ */

.chart-container {
    position: relative;
    height: 300px;
    margin: var(--spacing-md) 0;
}

/* ============================================
   Tabs
============================================ */

.tabs {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.tab-button {
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    top: 2px;
}

.tab-button:hover {
    color: var(--text-primary);
    background: rgba(102, 126, 234, 0.1);
}

.tab-button.active {
    color: var(--accent-primary);
    border-bottom-color: var(--accent-primary);
    background: rgba(102, 126, 234, 0.1);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}