/* Common Demo Styles for Frequency Domain Research Visualizations */
/* Unified with site's theme system - uses variables from main style.css */

/* Demo-specific CSS variables that work with site's theme system */
:root {
    /* Demo-specific additions */
    --demo-secondary-accent: #e67e22;
    --demo-success-color: #27ae60;
    --demo-warning-color: #f39c12;
    --demo-danger-color: #e74c3c;
    
    /* Interactive element properties */
    --button-hover-opacity: 0.9;
    --transition-speed: 0.3s;
}

/* Warm theme adjustments for demos */
[data-theme="warm"] {
    --demo-secondary-accent: #c2410c;
}

/* Soft dark theme adjustments for demos */
[data-theme="soft-dark"] {
    --demo-success-color: #2ecc71;
    --demo-warning-color: #f1c40f;
    --demo-danger-color: #e74c3c;
}

/* Demo body styling - inherits from site's main styles */
main {
    max-width: 1200px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Demo typography - uses site variables */
.demo-intro h1 {
    color: var(--text);
    text-align: center;
    margin-bottom: 10px;
}

.demo-intro .subtitle {
    text-align: center;
    color: var(--muted);
    font-size: 1.1em;
    margin-bottom: 30px;
}

h2, h3, h4 {
    color: var(--text);
}

/* Demo card components - using site theme variables */
.demo-container {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 30px;
    margin: 20px 0;
}

.explanation {
    background: var(--soft);
    border-left: 4px solid var(--link);
    padding: 20px;
    margin: 20px 0;
    border-radius: 0 8px 8px 0;
}

.warning {
    background: var(--soft);
    border-left: 4px solid var(--demo-secondary-accent);
    padding: 20px;
    margin: 20px 0;
    border-radius: 0 8px 8px 0;
}

/* Step-by-step sections using site theme */
.step-by-step {
    background: var(--soft);
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
}

.experiment-section {
    background: var(--soft);
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
}

.step {
    margin: 15px 0;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}

.step:last-child {
    border-bottom: none;
}

.step-number, .step-indicator {
    display: inline-block;
    width: 24px;
    height: 24px;
    background: var(--link);
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 24px;
    margin-right: 10px;
    font-weight: bold;
    font-size: 0.9em;
}

.step-indicator {
    width: 30px;
    height: 30px;
    line-height: 30px;
}

/* Controls and interactive elements using site theme */
.controls {
    background: var(--soft);
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
}

.control-group {
    margin: 15px 0;
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.control-group label {
    font-weight: 600;
    min-width: 120px;
    color: var(--text);
}

input[type="range"] {
    flex: 1;
    min-width: 200px;
    margin: 0 10px;
}

.value-display {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    background: var(--text);
    color: var(--bg);
    padding: 4px 8px;
    border-radius: 4px;
    min-width: 60px;
    text-align: center;
}

/* Button components using site theme */
.activation-btn, .selector-btn {
    padding: 8px 16px;
    border: 2px solid var(--link);
    background: var(--bg);
    color: var(--link);
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    font-weight: 600;
}

.activation-btn.active, .selector-btn.active {
    background: var(--link);
    color: white;
}

.activation-btn:hover, .selector-btn:hover {
    background: var(--link);
    color: white;
    opacity: var(--button-hover-opacity);
}

.activation-buttons, .image-selector {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
    margin: 15px 0;
}

/* Canvas and visualization elements using site theme */
canvas {
    border: 2px solid var(--link);
    border-radius: 8px;
    background: var(--bg);
    max-width: 100%;
    height: auto;
}

.canvas-container {
    display: flex;
    gap: 20px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
    margin: 20px 0;
    text-align: center;
}

.canvas-section {
    text-align: center;
    margin: 10px;
}

/* Grid layouts using site theme */
.visualization-area {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin: 30px 0;
    align-items: start;
}

.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.image-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 15px;
    text-align: center;
    transition: transform var(--transition-speed) ease;
}

.image-card:hover {
    transform: translateY(-2px);
    border-color: var(--link);
}

/* Special highlight boxes using site theme */
.key-insight, .mystery-box {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 25px;
    border-radius: 12px;
    margin: 25px 0;
    text-align: center;
}

.key-insight h3, .mystery-box h3 {
    margin-top: 0;
    font-size: 1.4em;
    color: white;
}

.insight-box {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 25px;
    border-radius: 12px;
    margin: 25px 0;
    text-align: center;
}

.surprise {
    background: var(--soft);
    border-left: 4px solid var(--demo-warning-color);
    padding: 20px;
    margin: 20px 0;
    border-radius: 0 8px 8px 0;
    color: var(--text);
}

.result-highlight {
    background: var(--soft);
    border: 2px solid var(--demo-success-color);
    border-radius: 8px;
    padding: 15px;
    margin: 15px 0;
    text-align: center;
    color: var(--text);
}

/* Responsive design */
@media (max-width: 768px) {
    main {
        padding: 10px;
    }
    
    .visualization-area {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .canvas-container {
        flex-direction: column;
        gap: 15px;
    }
    
    .control-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .control-group label {
        min-width: auto;
    }
}

/* Metric displays and charts using site theme */
.metrics-display {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin: 20px 0;
}

.metric-card {
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    border-left: 4px solid var(--link);
}

.metric-value {
    font-size: 2em;
    font-weight: bold;
    color: var(--text);
    margin: 10px 0;
}

.metric-label {
    color: var(--muted);
    font-size: 0.9em;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.chart-container {
    position: relative;
    height: 300px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
}

/* Animation and transition classes */
.fade-in {
    opacity: 0;
    transition: opacity var(--transition-speed) ease;
}

.fade-in.visible {
    opacity: 1;
}

/* Utility classes */
.text-center {
    text-align: center;
}

.margin-top {
    margin-top: 20px;
}

.margin-bottom {
    margin-bottom: 20px;
}

.small-text {
    font-size: 0.9em;
    opacity: 0.8;
}

.highlight {
    color: var(--link);
    font-weight: 600;
}

.comparison-arrow {
    font-size: 2em;
    color: var(--link);
    text-align: center;
    margin: 10px 0;
}

/* Sparsity demo specific styles */
.slider-section {
    background: var(--soft);
    padding: 25px;
    border-radius: 12px;
    border: 2px solid var(--border);
}

.sparsity-slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: linear-gradient(to right, #e74c3c 0%, #f39c12 70%, #27ae60 90%, #2ecc71 100%);
    outline: none;
    margin: 20px 0;
    cursor: pointer;
}

.sparsity-slider::-webkit-slider-thumb {
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--text);
    cursor: pointer;
    border: 3px solid var(--bg);
    box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}

.sparsity-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--text);
    cursor: pointer;
    border: 3px solid var(--bg);
    box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}

.speedometer {
    width: 200px;
    height: 200px;
    margin: 20px auto;
    position: relative;
}

.speedometer-bg {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: conic-gradient(
        from 0deg,
        #e74c3c 0deg 72deg,
        #f39c12 72deg 144deg,
        #f1c40f 144deg 216deg,
        #27ae60 216deg 288deg,
        #2ecc71 288deg 360deg
    );
    position: relative;
}

.speedometer-inner {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 60%;
    height: 60%;
    background: var(--bg);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2em;
    color: var(--text);
}

.speedometer-needle {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 3px;
    height: 40%;
    background: var(--text);
    transform-origin: bottom center;
    transform: translate(-50%, -100%) rotate(0deg);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
}

.cliff-warning {
    background: var(--soft);
    border: 2px solid var(--demo-warning-color);
    border-radius: 8px;
    padding: 15px;
    margin: 15px 0;
    text-align: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    color: var(--text);
}

.cliff-warning.visible {
    opacity: 1;
}

.range-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
    font-size: 0.9em;
    color: var(--muted);
}

/* Chart styling for demos */
.quality-chart {
    width: 100%;
    height: 100%;
}

.chart-line {
    stroke-width: 3;
    fill: none;
    stroke: var(--link);
}

.chart-area {
    fill: color-mix(in srgb, var(--link) 20%, transparent);
}

.chart-grid {
    stroke: var(--border);
    stroke-width: 1;
}

.chart-axis {
    stroke: var(--muted);
    stroke-width: 2;
}

.current-point {
    fill: var(--demo-danger-color);
    stroke: var(--bg);
    stroke-width: 2;
    r: 6;
}