/* Bible Cross-Reference Visualizer Styles */

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

:root {
    --primary-gold: #FFD700;
    --primary-cyan: #00CED1;
    --primary-purple: #9370DB;
    --bg-dark: #1a1a2e;
    --bg-medium: #16213e;
    --bg-light: #0f3460;
    --text-light: #eee;
    --text-muted: #aaa;
    --accent-green: #2ecc71;
    --accent-red: #e74c3c;
}

/* Theme: Professional (default) */
[data-theme="professional"] {
    --primary-gold: #4682B4;
    --primary-cyan: #B0C4DE;
    --primary-purple: #3CB371;
    --accent-green: #3CB371;
}

/* Theme: Vibrant */
[data-theme="vibrant"] {
    --primary-gold: #FFD700;
    --primary-cyan: #00FFFF;
    --primary-purple: #FF00FF;
    --accent-green: #00FF41;
}

/* Theme: Matrix */
[data-theme="matrix"] {
    --primary-gold: #00FF41;
    --primary-cyan: #009628;
    --primary-purple: #00FF7F;
    --accent-green: #32CD32;
}

/* Theme: Sunset */
[data-theme="sunset"] {
    --primary-gold: #FF7F50;
    --primary-cyan: #FFA500;
    --primary-purple: #DC143C;
    --accent-green: #FF8C00;
}

/* Theme: Royal */
[data-theme="royal"] {
    --primary-gold: #8A2BE2;
    --primary-cyan: #9370DB;
    --primary-purple: #483D8B;
    --accent-green: #483D8B;
}

/* Theme: Ocean */
[data-theme="ocean"] {
    --primary-gold: #00BFFF;
    --primary-cyan: #40E0D0;
    --primary-purple: #20B2AA;
    --accent-green: #20B2AA;
}

/* Theme: Black & Gold (Tableau Demo Style) */
[data-theme="blackgold"] {
    --primary-gold: #FFD700;
    --primary-cyan: #FFA500;
    --primary-purple: #FFD700;
    --bg-dark: #000000;
    --bg-medium: #0a0a0a;
    --bg-light: #1a1a1a;
    --text-light: #ffffff;
    --text-muted: #cccccc;
    --accent-green: #FFD700;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-medium) 100%);
    color: var(--text-light);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 100%;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    text-align: center;
    padding: 40px 0;
    background: linear-gradient(90deg, var(--primary-gold) 0%, var(--primary-cyan) 100%);
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

header h1 {
    font-size: 3em;
    font-weight: bold;
    background: linear-gradient(90deg, var(--bg-dark), var(--bg-medium));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.subtitle {
    color: var(--bg-dark);
    font-size: 1.2em;
    font-weight: 500;
}

/* Navigation Tabs */
.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 24px;
    background: var(--bg-light);
    border: 2px solid transparent;
    border-radius: 8px;
    color: var(--text-light);
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    background: var(--primary-cyan);
    color: var(--bg-dark);
    transform: translateY(-2px);
}

.tab-btn.active {
    background: var(--primary-gold);
    color: var(--bg-dark);
    border-color: var(--primary-cyan);
}

/* Controls */
.controls {
    display: flex;
    gap: 20px;
    align-items: center;
    flex-wrap: wrap;
    background: var(--bg-light);
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 30px;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.control-group select,
.control-group input[type="range"] {
    padding: 8px 12px;
    background: var(--bg-medium);
    border: 1px solid var(--primary-cyan);
    border-radius: 5px;
    color: var(--text-light);
    font-size: 0.95em;
}

.control-group select:focus,
.control-group input:focus {
    outline: none;
    border-color: var(--primary-gold);
}

#min-value {
    background: var(--primary-cyan);
    color: var(--bg-dark);
    padding: 4px 12px;
    border-radius: 4px;
    font-weight: bold;
    min-width: 40px;
    text-align: center;
}

.btn {
    padding: 10px 20px;
    background: var(--bg-medium);
    border: 1px solid var(--primary-cyan);
    border-radius: 5px;
    color: var(--text-light);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn:hover {
    background: var(--primary-cyan);
    color: var(--bg-dark);
    transform: scale(1.05);
}

.btn-primary {
    background: var(--primary-gold);
    color: var(--bg-dark);
    border-color: var(--primary-gold);
}

.btn-primary:hover {
    background: var(--primary-cyan);
    border-color: var(--primary-cyan);
}

.btn-theme {
    background: linear-gradient(90deg, var(--primary-gold), var(--primary-cyan), var(--primary-purple));
    color: white;
    border-color: var(--primary-gold);
    font-weight: bold;
}

.btn-theme:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 20px rgba(255, 215, 0, 0.5);
}

/* Visualization Container */
.viz-container {
    position: relative;
    background: var(--bg-medium);
    border-radius: 15px;
    padding: 30px;
    min-height: 1100px;
    margin-bottom: 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.viz-panel {
    display: none;
}

.viz-panel.active {
    display: block;
}

.viz-info {
    margin-bottom: 20px;
    padding: 15px;
    background: var(--bg-light);
    border-left: 4px solid var(--primary-gold);
    border-radius: 5px;
}

.viz-info h3 {
    color: var(--primary-gold);
    margin-bottom: 8px;
}

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

/* SVG Styles */
svg {
    width: 100%;
    min-height: 600px;
    background: var(--bg-dark);
    border-radius: 10px;
}

/* Tooltip */
.tooltip {
    position: fixed;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.95);
    color: var(--text-light);
    border: 2px solid var(--primary-gold);
    border-radius: 8px;
    pointer-events: none;
    display: none;
    font-size: 14px;
    line-height: 1.6;
    max-width: 300px;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
}

.tooltip strong {
    color: var(--primary-gold);
}

/* Statistics Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.stat-card {
    background: var(--bg-light);
    padding: 20px;
    border-radius: 10px;
    border-left: 4px solid var(--primary-gold);
}

.stat-card h4 {
    color: var(--primary-cyan);
    margin-bottom: 10px;
}

.stat-card .stat-value {
    font-size: 2em;
    font-weight: bold;
    color: var(--primary-gold);
    margin: 10px 0;
}

.stat-list {
    list-style: none;
    padding: 0;
}

.stat-list li {
    padding: 8px 0;
    border-bottom: 1px solid var(--bg-medium);
    display: flex;
    justify-content: space-between;
}

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

.stat-list .book-name {
    color: var(--text-light);
}

.stat-list .count {
    color: var(--primary-cyan);
    font-weight: bold;
}

/* Enhanced Statistics Styles */
.stats-section {
    margin-bottom: 40px;
}

.section-title {
    color: var(--primary-gold);
    font-size: 1.8em;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-gold);
}

.stats-grid-wide {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
}

.stat-card.highlight {
    border-left: 4px solid var(--accent-green);
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-medium) 100%);
}

.stat-card small {
    display: block;
    color: var(--text-muted);
    font-size: 0.85em;
    margin-top: 5px;
}

.stat-list .rank {
    color: var(--primary-gold);
    font-weight: bold;
    margin-right: 8px;
}

.stats-footer {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--bg-light);
}

/* Responsive adjustments for stats */
@media (max-width: 768px) {
    .stats-grid,
    .stats-grid-wide {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 1.4em;
    }

    .stat-card .stat-value {
        font-size: 1.5em;
    }
}

/* Arc-specific styles */
.arc-line {
    fill: none;
    /* stroke-width and opacity are now set in JavaScript for rainbow gradient effect */
    transition: opacity 0.2s, stroke-width 0.2s;
}

.arc-line:hover {
    opacity: 1;
    stroke-width: 3;
}

/* Old testament-based colors - replaced with rainbow gradient in JavaScript
.arc-line.ot-ot {
    stroke: var(--accent-green);
}

.arc-line.nt-nt {
    stroke: var(--primary-cyan);
}

.arc-line.cross-testament {
    stroke: var(--primary-purple);
}
*/

.chapter-node {
    cursor: pointer;
}

.chapter-node:hover {
    transform: scale(1.2);
}

/* Network Graph styles */
.node {
    cursor: pointer;
    stroke: var(--bg-dark);
    stroke-width: 2;
}

.node.ot {
    fill: var(--accent-green);
}

.node.nt {
    fill: var(--primary-cyan);
}

.link {
    stroke: var(--text-muted);
    stroke-opacity: 0.4;
}

.link.highlighted {
    stroke: var(--primary-gold);
    stroke-opacity: 0.8;
    stroke-width: 3;
}

/* Heatmap cells */
.heatmap-cell {
    cursor: pointer;
    transition: stroke-width 0.2s;
}

.heatmap-cell:hover {
    stroke: var(--primary-gold);
    stroke-width: 3;
}

/* Footer */
footer {
    text-align: center;
    padding: 30px 0;
    color: var(--text-muted);
    border-top: 1px solid var(--bg-light);
    margin-top: 30px;
}

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

footer a:hover {
    color: var(--primary-gold);
    text-decoration: underline;
}

/* Loading Animation */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 400px;
    font-size: 1.5em;
    color: var(--primary-gold);
}

.loading::after {
    content: '...';
    animation: dots 1.5s infinite;
}

@keyframes dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }

    .controls {
        flex-direction: column;
        align-items: stretch;
    }

    .control-group {
        justify-content: space-between;
    }

    .tabs {
        justify-content: center;
    }

    .tab-btn {
        flex: 1;
        min-width: 120px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 12px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary-cyan);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-gold);
}