/* Custom CSS for Galaxy Clustering Visualization - Mobile First */

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --background-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --card-background: rgba(255, 255, 255, 0.95);
    --text-primary: #2d3748;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --border-color: #e2e8f0;
    --shadow: 0 8px 25px rgba(0,0,0,0.1);
    --border-radius: 12px;
    --mobile-padding: 15px;
    --desktop-padding: 25px;
}

.parameter-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.parameter-range {
    font-size: 0.9em;
    color: var(--text-muted);
    font-style: italic;
}

.slider-track {
    position: relative;
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    overflow: hidden;
}

.slider-track::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
    width: var(--progress, 50%);
    transition: width 0.2s ease;
}

.statistics-panel {
    background: rgba(102, 126, 234, 0.05);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 10px;
    padding: 15px;
    margin-top: 20px;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 0.9em;
}

.stat-label {
    color: var(--text-secondary);
}

.stat-value {
    font-weight: bold;
    color: var(--primary-color);
}

.plot-controls {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 15px;
}

.plot-button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9em;
    transition: all 0.2s ease;
}

.plot-button:hover {
    background: var(--secondary-color);
    transform: translateY(-1px);
}

.plot-button.active {
    background: var(--secondary-color);
    box-shadow: 0 4px 12px rgba(118, 75, 162, 0.3);
}

.tooltip {
    position: relative;
    display: inline-block;
    cursor: help;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: 200px;
    background-color: var(--text-primary);
    color: white;
    text-align: center;
    border-radius: 6px;
    padding: 8px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -100px;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 0.8em;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

.correlation-strength {
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.8em;
    font-weight: bold;
    text-align: center;
    margin-top: 10px;
}

.correlation-strong {
    background: #48bb78;
    color: white;
}

.correlation-moderate {
    background: #ed8936;
    color: white;
}

.correlation-weak {
    background: #e53e3e;
    color: white;
}