/**
 * Visual Navigation Graph Styles
 * Styles for the Abhidhamma graph visualization
 */

.graph-container {
    width: 100%;
    height: 700px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    background: #fafafa;
    position: relative;
    overflow: hidden;
}

.graph-container.fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 10000;
    border: none;
    border-radius: 0;
}

.graph-controls {
    margin-top: 15px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    align-items: center;
}

.graph-controls button {
    padding: 10px 20px;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-family: 'Noto Sans Sinhala', sans-serif;
    transition: all 0.3s ease;
}

.graph-controls button:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.graph-controls button:active {
    transform: translateY(0);
}

.graph-controls button.active {
    background: #f39c12;
}

.graph-filters {
    margin-top: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 6px;
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
    align-items: center;
}

.graph-filters label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
    font-family: 'Noto Sans Sinhala', sans-serif;
    color: #2c3e50;
    user-select: none;
}

.graph-filters input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: #3498db;
}

.graph-filters label:hover {
    color: #3498db;
}

.graph-search {
    margin-top: 15px;
    text-align: center;
}

.graph-search input {
    padding: 10px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 14px;
    font-family: 'Noto Sans Sinhala', sans-serif;
    width: 300px;
    max-width: 100%;
}

.graph-search input:focus {
    outline: none;
    border-color: #3498db;
}

.graph-info {
    margin-top: 15px;
    padding: 15px;
    background: #ecf0f1;
    border-radius: 6px;
    font-size: 14px;
    font-family: 'Noto Sans Sinhala', sans-serif;
    color: #2c3e50;
}

.graph-info strong {
    color: #34495e;
}

.graph-legend {
    margin-top: 15px;
    padding: 15px;
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}

.graph-legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
}

.graph-legend-color {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 1px solid #ddd;
}

.graph-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 700px;
    font-size: 16px;
    color: #7f8c8d;
}

.graph-error {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 700px;
    color: #e74c3c;
    font-size: 16px;
    text-align: center;
    padding: 20px;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .graph-container {
        height: 500px;
    }
    
    .graph-controls {
        flex-direction: column;
    }
    
    .graph-controls button {
        width: 100%;
        max-width: 300px;
    }
    
    .graph-filters {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .graph-search input {
        width: 100%;
    }
    
    .graph-legend {
        flex-direction: column;
        gap: 10px;
    }
}

/* Graph modal overlay */
.graph-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 10000;
    padding: 20px;
}

.graph-modal.active {
    display: flex;
    justify-content: center;
    align-items: center;
}

.graph-modal-content {
    background: white;
    border-radius: 12px;
    padding: 20px;
    max-width: 95%;
    max-height: 95%;
    width: 1400px;
    position: relative;
}

.graph-modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: #e74c3c;
    color: white;
    border: none;
    border-radius: 50%;
    width: 35px;
    height: 35px;
    cursor: pointer;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.graph-modal-close:hover {
    background: #c0392b;
    transform: rotate(90deg);
}

/* Node tooltip */
.cy-tooltip {
    position: absolute;
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    pointer-events: none;
    z-index: 10001;
    max-width: 200px;
    font-family: 'Noto Sans Sinhala', sans-serif;
}

/* Animation classes */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.node-pulse {
    animation: pulse 2s infinite;
}

/* Enhanced styles for Comprehensive Knowledge Mesh */

/* Learning path controls */
.learning-path-controls {
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
}

.learning-path-controls button:hover {
    background: rgba(255,255,255,0.9) !important;
    color: #333 !important;
}

/* Content filter controls */
.content-filter-controls {
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
}

.content-filter-controls label {
    font-size: 11px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.content-filter-controls label:hover {
    color: #3498db;
}

/* Node details panel */
.node-details-panel {
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    font-family: 'Noto Sans Sinhala', sans-serif;
}

.node-details-panel a {
    color: #3498db !important;
    text-decoration: none;
    transition: color 0.2s ease;
}

.node-details-panel a:hover {
    color: #2980b9 !important;
    text-decoration: underline;
}

/* Enhanced node highlighting */
.related-highlight {
    border-color: #f39c12 !important;
    border-width: 3px !important;
    background-color: rgba(243, 156, 18, 0.1) !important;
}

/* Learning path animations */
@keyframes learning-path-glow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(255, 152, 0, 0.5);
    }
    50% {
        box-shadow: 0 0 20px rgba(255, 152, 0, 0.8);
    }
}

.learning-path-active {
    animation: learning-path-glow 2s infinite;
}

/* Navigation hub special styling */
.navigation-hub-node {
    border-color: #2c3e50 !important;
    border-width: 4px !important;
    background-color: rgba(44, 62, 80, 0.1) !important;
}

/* Mental state connection highlights */
.mental-state-connection {
    line-style: dashed;
    line-dash-pattern: [5, 5];
}

/* Enhanced tooltip for mesh navigation */
.mesh-tooltip {
    background: linear-gradient(135deg, rgba(255,255,255,0.95), rgba(255,255,255,0.9));
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 8px;
    padding: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    max-width: 280px;
    font-family: 'Noto Sans Sinhala', sans-serif;
}

.mesh-tooltip-title {
    font-weight: bold;
    font-size: 14px;
    margin-bottom: 8px;
    color: #2c3e50;
}

.mesh-tooltip-content {
    font-size: 12px;
    line-height: 1.4;
    color: #555;
}

.mesh-tooltip-actions {
    margin-top: 10px;
    display: flex;
    gap: 8px;
}

.mesh-tooltip-actions button {
    padding: 4px 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background: #f9f9f9;
    cursor: pointer;
    font-size: 11px;
    transition: all 0.2s ease;
}

.mesh-tooltip-actions button:hover {
    background: #e9e9e9;
    border-color: #bbb;
}

/* Responsive enhancements for mesh controls */
@media (max-width: 768px) {
    .learning-path-controls,
    .content-filter-controls,
    .node-details-panel {
        position: static !important;
        margin: 10px;
        width: calc(100% - 20px);
        max-width: none;
    }

    .graph-container {
        height: 400px;
    }
}

/* Print styles */
@media print {
    .graph-controls,
    .graph-search,
    .graph-info,
    .learning-path-controls,
    .content-filter-controls,
    .node-details-panel {
        display: none;
    }

    .graph-container {
        height: auto;
        min-height: 600px;
    }
}