/**
 * Common styles for all visualizations
 * Publication-quality styling with accessibility
 */

:root {
    /* Color palette - color-blind safe */
    --color-primary: #2563eb;
    --color-secondary: #7c3aed;
    --color-accent: #ec4899;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;

    /* Trace awareness colors */
    --color-trace-yes: #10b981;
    --color-trace-minor: #f59e0b;
    --color-trace-no: #ef4444;

    /* Domain colors (color-blind safe palette) */
    --color-domain-1: #1f77b4;
    --color-domain-2: #ff7f0e;
    --color-domain-3: #2ca02c;
    --color-domain-4: #d62728;
    --color-domain-5: #9467bd;
    --color-domain-6: #8c564b;
    --color-domain-7: #e377c2;
    --color-domain-8: #7f7f7f;
    --color-domain-9: #bcbd22;
    --color-domain-10: #17becf;
    --color-domain-11: #aec7e8;

    /* Grays */
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Courier New', monospace;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Borders */
    --border-radius: 0.375rem;
    --border-width: 1px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-gray-900);
    background-color: var(--color-gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-xl);
}

/* Header */
.viz-header {
    margin-bottom: var(--spacing-xl);
}

.home-link {
    margin-bottom: var(--spacing-md);
}

.home-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: white;
    border: var(--border-width) solid var(--color-gray-300);
    border-radius: var(--border-radius);
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
}

.home-button:hover {
    background-color: #eff6ff;
    border-color: var(--color-primary);
    color: #1d4ed8;
    box-shadow: var(--shadow-md);
}

.viz-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-sm);
}

.viz-subtitle {
    font-size: 1rem;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-md);
}

.viz-description {
    font-size: 0.875rem;
    color: var(--color-gray-700);
    line-height: 1.6;
}

/* Controls */
.controls {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: var(--border-width) solid var(--color-gray-200);
}

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

.control-group:last-child {
    margin-bottom: 0;
}

.control-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-xs);
}

.control-input {
    width: 100%;
    padding: var(--spacing-sm);
    border: var(--border-width) solid var(--color-gray-300);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-family: var(--font-sans);
}

.control-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background-color: #1d4ed8;
}

.btn-secondary {
    background-color: var(--color-gray-200);
    color: var(--color-gray-900);
}

.btn-secondary:hover {
    background-color: var(--color-gray-300);
}

/* Visualization container */
.viz-container {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: var(--border-width) solid var(--color-gray-200);
}

/* SVG styles */
svg {
    font-family: var(--font-sans);
}

svg text {
    font-size: 12px;
    fill: var(--color-gray-700);
}

.axis line,
.axis path {
    stroke: var(--color-gray-300);
    shape-rendering: crispEdges;
}

.axis text {
    fill: var(--color-gray-600);
}

.grid line {
    stroke: var(--color-gray-200);
    stroke-opacity: 0.7;
    shape-rendering: crispEdges;
}

/* Tooltip */
.tooltip {
    position: absolute;
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    font-size: 0.8125rem;
    pointer-events: none;
    z-index: 1000;
    max-width: 300px;
    box-shadow: var(--shadow-lg);
}

.tooltip-title {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding-bottom: var(--spacing-xs);
}

.tooltip-content {
    line-height: 1.4;
}

.tooltip-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
}

.tooltip-label {
    opacity: 0.8;
    margin-right: var(--spacing-md);
}

.tooltip-value {
    font-weight: 500;
}

/* Legend */
.legend {
    margin-top: var(--spacing-lg);
}

.legend-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-sm);
}

.legend-items {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.legend-item {
    display: flex;
    align-items: center;
    font-size: 0.8125rem;
    color: var(--color-gray-700);
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: 2px;
    margin-right: var(--spacing-xs);
}

/* Loading state */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    color: var(--color-gray-500);
}

.loading::before {
    content: '';
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: var(--spacing-md);
}

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

/* Error state */
.error {
    padding: var(--spacing-lg);
    background-color: #fef2f2;
    border: var(--border-width) solid #fecaca;
    border-radius: var(--border-radius);
    color: #991b1b;
}

/* Responsive grid */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.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: 640px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Interactions */
.clickable {
    cursor: pointer;
}

.hoverable {
    transition: opacity 0.2s;
}

.hoverable:hover {
    opacity: 0.8;
}

.selected {
    stroke: var(--color-primary);
    stroke-width: 2px;
}

.dimmed {
    opacity: 0.2;
}

/* Export button */
.export-btn {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
}

/* Stats panel */
.stats-panel {
    background: var(--color-gray-50);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--color-gray-200);
}

.stat-item:last-child {
    border-bottom: none;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

.stat-value {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray-900);
}

/* Filters */
.filters {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.filter-chip {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: white;
    border: var(--border-width) solid var(--color-gray-300);
    border-radius: 9999px;
    font-size: 0.8125rem;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-chip:hover {
    border-color: var(--color-primary);
    background-color: var(--color-primary);
    color: white;
}

.filter-chip.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Print styles */
@media print {
    body {
        background: white;
    }

    .controls,
    .export-btn {
        display: none;
    }

    .viz-container {
        box-shadow: none;
        border: none;
    }
}