/**
 * Concept Graph Mode Styles
 */

.graph-layout {
    display: grid;
    grid-template-columns: 200px 1fr 260px;
    gap: 1.5rem;
    padding: 1.5rem;
    min-height: calc(100vh - 200px);
}

.graph-sidebar {
    background: var(--paper-sand, #FDFBF7);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid var(--border-light, #E5E7EB);
}

.graph-sidebar h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary, #6B7280);
    margin: 0 0 0.75rem 0;
}

.relation-filter label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0;
    font-size: 0.875rem;
    cursor: pointer;
}

.relation-filter input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--navigator-primary, #8B5CF6);
}

.zoom-controls {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.zoom-controls button {
    flex: 1;
    padding: 0.5rem;
    background: white;
    border: 1px solid var(--border-light, #E5E7EB);
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.15s ease;
}

.zoom-controls button:hover {
    background: var(--navigator-primary, #8B5CF6);
    color: white;
    border-color: var(--navigator-primary, #8B5CF6);
}

.stats-section {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light, #E5E7EB);
}

.stats-list {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.25rem 0.5rem;
    margin: 0;
    font-size: 0.875rem;
}

.stats-list dt {
    color: var(--text-secondary, #6B7280);
}

.stats-list dd {
    margin: 0;
    font-weight: 600;
    text-align: right;
}

/* Graph Container */
.graph-main {
    background: white;
    border-radius: 8px;
    border: 1px solid var(--border-light, #E5E7EB);
    overflow: hidden;
}

#graph-container {
    width: 100%;
    height: 100%;
    min-height: 500px;
}

#concept-graph {
    display: block;
    background: linear-gradient(180deg, #FDFBF7 0%, white 100%);
}

/* Graph Elements */
.link {
    stroke: var(--border-light, #E5E7EB);
    stroke-width: 1.5;
    fill: none;
}

.link.broader {
    stroke: #6B7280;
    stroke-dasharray: none;
}

.link.narrower {
    stroke: #6B7280;
    stroke-dasharray: 4 2;
}

.link.related {
    stroke: #10B981;
    stroke-dasharray: 2 2;
}

.node {
    cursor: pointer;
}

.node-circle {
    fill: white;
    stroke: var(--navigator-primary, #8B5CF6);
    stroke-width: 2;
    transition: all 0.15s ease;
}

.node:hover .node-circle {
    fill: rgba(139, 92, 246, 0.1);
    r: 10;
}

.node.selected .node-circle {
    fill: var(--navigator-primary, #8B5CF6);
    stroke-width: 3;
}

.node-label {
    font-size: 10px;
    fill: var(--text-primary, #1F2937);
    pointer-events: none;
}

.node.selected .node-label {
    font-weight: 600;
    fill: var(--navigator-primary, #8B5CF6);
}

/* Context Panel */
.graph-context {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

#node-detail {
    background: var(--paper-sand, #FDFBF7);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid var(--border-light, #E5E7EB);
}

#node-detail.hidden {
    display: none;
}

#node-detail h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary, #6B7280);
    margin: 0 0 0.75rem 0;
}

#node-detail dl {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.25rem 0.75rem;
    margin: 0;
    font-size: 0.8125rem;
}

#node-detail dt {
    color: var(--text-secondary, #6B7280);
}

#node-detail dd {
    margin: 0;
    word-break: break-word;
}

#node-detail dd a {
    color: var(--navigator-primary, #8B5CF6);
    text-decoration: none;
    font-size: 0.75rem;
}

.graph-legend {
    background: var(--paper-sand, #FDFBF7);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid var(--border-light, #E5E7EB);
}

.graph-legend h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary, #6B7280);
    margin: 0 0 0.75rem 0;
}

.legend-list {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0.8125rem;
}

.legend-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0;
}

.legend-line {
    width: 24px;
    height: 2px;
}

.legend-line.broader {
    background: #6B7280;
}

.legend-line.related {
    background: repeating-linear-gradient(
        90deg,
        #10B981 0px,
        #10B981 2px,
        transparent 2px,
        transparent 4px
    );
}

.keyboard-hints {
    background: var(--paper-sand, #FDFBF7);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid var(--border-light, #E5E7EB);
}

.keyboard-hints h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary, #6B7280);
    margin: 0 0 0.75rem 0;
}

.hint-list {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.25rem 0.5rem;
    margin: 0;
    font-size: 0.75rem;
}

.hint-list dt {
    font-family: var(--font-mono, monospace);
    background: white;
    padding: 0.125rem 0.375rem;
    border-radius: 3px;
    border: 1px solid var(--border-light, #E5E7EB);
}

.hint-list dd {
    margin: 0;
    color: var(--text-secondary, #6B7280);
    display: flex;
    align-items: center;
}

/* Responsive */
@media (max-width: 1024px) {
    .graph-layout {
        grid-template-columns: 1fr;
    }

    .graph-sidebar,
    .graph-context {
        display: none;
    }
}