/* ===================================
   MAIA Demo - Main Styles
   ================================ */

/* === CSS Variables === */
:root {
    /* Colors - Colorblind-friendly palette */
    --color-primary: #0173B2;      /* Blue - MAIA White-Box */
    --color-secondary: #DE8F05;    /* Orange - Baselines */
    --color-accent: #029E73;       /* Green - MAIA Black-Box */
    --color-success: #029E73;
    --color-warning: #DE8F05;
    --color-error: #D55E00;
    
    /* Neutrals */
    --color-bg: #F8F9FA;
    --color-bg-dark: #212529;
    --color-text: #212529;
    --color-text-light: #6C757D;
    --color-text-white: #FFFFFF;
    --color-border: #DEE2E6;
    --color-shadow: rgba(0, 0, 0, 0.1);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 3rem;
    
    /* Layout */
    --container-max-width: 1200px;
    --border-radius: 8px;
    --border-radius-lg: 16px;
    --transition: all 0.3s ease;
}

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

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

body {
    font-family: var(--font-family);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    overflow-x: hidden;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--spacing-sm);
}

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

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

/* === Container === */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-padding {
    padding: var(--spacing-xl) 0;
}

/* === Navigation === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px var(--color-shadow);
    z-index: 1000;
    transition: transform 0.3s ease;
}

.navbar.hidden {
    transform: translateY(-100%);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
}

.nav-brand {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--color-text);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    background: var(--color-primary);
    color: var(--color-text-white);
}

/* === Hero Section === */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--color-text-white);
    overflow: hidden;
}

#particles-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.hero-title {
    font-size: 5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -2px;
}

.hero-subtitle {
    font-size: var(--font-size-2xl);
    font-weight: 400;
    margin-bottom: var(--spacing-sm);
    opacity: 0.95;
}

.hero-description {
    font-size: var(--font-size-lg);
    opacity: 0.85;
    margin-bottom: var(--spacing-md);
}

.hero-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    opacity: 0.8;
    margin-bottom: var(--spacing-lg);
}

.venue {
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
}

.separator {
    opacity: 0.5;
}

/* === Scroll Indicator === */
.scroll-indicator {
    margin-top: var(--spacing-lg);
    opacity: 0.7;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--color-text-white);
    border-radius: 13px;
    position: relative;
    margin: 0 auto var(--spacing-sm);
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--color-text-white);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0%, 20% { transform: translateX(-50%) translateY(0); opacity: 1; }
    100% { transform: translateX(-50%) translateY(16px); opacity: 0; }
}

/* === Section Titles === */
.section-title {
    text-align: center;
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.section-subtitle {
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

/* === Motivation Section === */
.motivation-section {
    background: var(--color-text-white);
}

.motivation-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.problem-statement h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.stat-boxes {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.stat-box {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-text-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
}

.stat-number {
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.stat-label {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.comparison-card {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
}

.comparison-card h3 {
    margin-bottom: var(--spacing-md);
}

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

.approach-item {
    background: var(--color-text-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border: 2px solid var(--color-border);
    position: relative;
}

.approach-item.semantic-based {
    border-color: var(--color-primary);
}

.approach-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.approach-item h4 {
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.approach-item ul {
    list-style: none;
    padding-left: 0;
}

.approach-item li {
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: var(--spacing-xs);
}

.approach-item li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

.approach-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--color-border);
    border-radius: 12px;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-sm);
}

.approach-tag.highlight {
    background: var(--color-primary);
    color: var(--color-text-white);
}

.key-insight {
    background: linear-gradient(135deg, #FFF9E6, #FFE5B4);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    border-left: 4px solid var(--color-secondary);
    display: flex;
    gap: var(--spacing-md);
    align-items: start;
}

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

.insight-content h4 {
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
}

/* === Method Section === */
.method-section {
    background: var(--color-bg);
}

.method-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.method-step {
    background: var(--color-text-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 20px var(--color-shadow);
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: var(--spacing-lg);
}

.step-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-primary);
    opacity: 0.2;
    text-align: center;
}

.step-content h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.step-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.detail-item {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
}

.detail-item h4 {
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.formula {
    background: var(--color-text-white);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-sm);
    text-align: center;
    border: 1px solid var(--color-border);
}

.step-visualization {
    margin-top: var(--spacing-md);
}

.viz-placeholder {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
}

.viz-caption {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-top: var(--spacing-sm);
}

/* Mock visualizations */
.spectrogram-mock {
    position: relative;
    height: 200px;
    background: linear-gradient(to bottom, #2c3e50, #34495e, #2c3e50);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.heatmap-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at 30% 50%, rgba(222, 143, 5, 0.6), transparent 50%),
                radial-gradient(ellipse at 70% 50%, rgba(222, 143, 5, 0.4), transparent 50%);
}

.segment-timeline {
    padding: var(--spacing-md);
}

.timeline-bar {
    position: relative;
    height: 60px;
    background: linear-gradient(to right, #E0E0E0, #F5F5F5, #E0E0E0);
    border-radius: var(--border-radius);
}

.segment {
    position: absolute;
    height: 100%;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: var(--font-size-sm);
}

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

.segment.medium {
    background: var(--color-secondary);
}

.segment-label {
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.inpainting-comparison {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.comparison-item {
    flex: 1;
    text-align: center;
}

.waveform-mock {
    height: 100px;
    background: linear-gradient(to right, #3498db 2%, transparent 2%, transparent 4%, #3498db 4%);
    background-size: 4px 100%;
    border-radius: var(--border-radius);
    position: relative;
}

.waveform-mock::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse, rgba(52, 152, 219, 0.3), transparent);
}

.waveform-mock.before {
    background-color: #ecf0f1;
}

.waveform-mock.after {
    background-color: #e8f5e9;
    background-image: linear-gradient(to right, #27ae60 2%, transparent 2%, transparent 4%, #27ae60 4%);
}

.arrow {
    font-size: 2rem;
    color: var(--color-accent);
}

/* === Demo Section === */
.demo-section {
    background: var(--color-text-white);
}

.demo-container {
    background: var(--color-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
}

.demo-controls {
    margin-bottom: var(--spacing-md);
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.control-group label {
    font-weight: 500;
    color: var(--color-text);
}

.sample-dropdown {
    padding: var(--spacing-sm);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    background: var(--color-text-white);
    cursor: pointer;
    transition: var(--transition);
}

.sample-dropdown:hover,
.sample-dropdown:focus {
    border-color: var(--color-primary);
    outline: none;
}

.audio-players-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.player-card {
    background: var(--color-text-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 10px var(--color-shadow);
}

.player-card h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.sync-controls {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.btn-sync {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-accent);
    color: var(--color-text-white);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn-sync:hover {
    background: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(1, 115, 178, 0.3);
}

.attack-info-panel {
    background: var(--color-text-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.info-card {
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    background: var(--color-bg);
}

.info-card h4 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
}

.prediction-card .genre-label {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.prediction-card.adversarial .genre-label {
    color: var(--color-accent);
}

.confidence-bar {
    height: 8px;
    background: var(--color-border);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: var(--spacing-xs);
}

.confidence-fill {
    height: 100%;
    background: var(--color-primary);
    transition: width 0.5s ease;
}

.confidence-fill.adversarial {
    background: var(--color-accent);
}

.confidence-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.status-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

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

.status-text {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.status-icon.success { color: var(--color-success); }
.status-icon.failed { color: var(--color-error); }

.metrics-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

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

.metric-label {
    font-weight: 500;
}

.metric-value {
    font-weight: 600;
    color: var(--color-primary);
}

.regions-timeline {
    background: var(--color-text-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
}

.regions-timeline h4 {
    margin-bottom: var(--spacing-md);
}

.timeline-container {
    position: relative;
}

.timeline-track {
    position: relative;
    height: 40px;
    background: var(--color-bg);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
}

.region-marker {
    position: absolute;
    height: 100%;
    background: var(--color-error);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.region-marker:hover {
    transform: scaleY(1.2);
    background: var(--color-secondary);
}

.region-tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-text);
    color: var(--color-text-white);
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius);
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.region-marker:hover .region-tooltip {
    opacity: 1;
}

.timeline-labels {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.timeline-hint {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    text-align: center;
    margin-top: var(--spacing-sm);
}

/* === Results Section === */
.results-section {
    background: var(--color-bg);
}

.performance-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.perf-card {
    background: var(--color-text-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 20px var(--color-shadow);
    transition: var(--transition);
}

.perf-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

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

.card-header h3 {
    margin: 0;
}

.card-badge {
    padding: 0.25rem 0.75rem;
    background: var(--color-border);
    border-radius: 12px;
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.perf-card.whitebox .card-badge,
.perf-card.blackbox .card-badge {
    background: var(--color-primary);
    color: var(--color-text-white);
}

.metric-display {
    text-align: center;
    padding: var(--spacing-md) 0;
    border-bottom: 2px solid var(--color-bg);
    margin-bottom: var(--spacing-md);
}

.metric-value.large {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-primary);
}

.metric-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
}

.metric-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.metric-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-sm);
}

.metric-row .value {
    font-weight: 600;
    color: var(--color-accent);
}

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

.chart-card {
    background: var(--color-text-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 10px var(--color-shadow);
}

.chart-card h3 {
    margin-bottom: var(--spacing-md);
}

.chart {
    min-height: 300px;
}

.metrics-table-container {
    background: var(--color-text-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
}

.metrics-table-container h3 {
    margin-bottom: var(--spacing-md);
}

.table-responsive {
    overflow-x: auto;
}

.metrics-table {
    width: 100%;
    border-collapse: collapse;
}

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

.metrics-table th {
    background: var(--color-bg);
    font-weight: 600;
    color: var(--color-text);
}

.metrics-table .section-header td {
    background: var(--color-bg);
    font-weight: 600;
    padding-top: var(--spacing-md);
}

.metrics-table .highlight-row {
    background: rgba(1, 115, 178, 0.05);
}

.metrics-table .highlight-row td {
    font-weight: 600;
    color: var(--color-primary);
}

/* === Resources Section === */
.resources-section {
    background: var(--color-text-white);
}

.resources-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.resource-section h3 {
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.application-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.app-card {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
}

.app-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 20px var(--color-shadow);
}

.app-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.app-card h4 {
    margin-bottom: var(--spacing-sm);
}

.resource-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.resource-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.resource-link:hover {
    background: var(--color-primary);
    color: var(--color-text-white);
    transform: translateX(10px);
}

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

.link-content {
    flex: 1;
}

.link-content h4 {
    margin: 0 0 0.25rem 0;
}

.link-content p {
    margin: 0;
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

.link-arrow {
    font-size: var(--font-size-xl);
}

.citation-box {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    position: relative;
}

.citation-box pre {
    margin: 0;
    overflow-x: auto;
}

.citation-box code {
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.btn-copy {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-primary);
    color: var(--color-text-white);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: var(--transition);
}

.btn-copy:hover {
    background: var(--color-accent);
}

.contact-info p {
    margin-bottom: var(--spacing-sm);
}

/* === Footer === */
.footer {
    background: var(--color-bg-dark);
    color: var(--color-text-white);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.footer p {
    margin: 0.25rem 0;
    opacity: 0.8;
}