/* ═══ Memory / Knowledge Graph View ═══ */

.memory-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 24px;
    padding: 32px;
    min-height: calc(100vh - 80px);
}

/* ─── Graph Canvas ─── */
.kg-graph-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    position: relative;
    overflow: hidden;
    min-height: 600px;
}

.kg-graph-container canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.kg-graph-header {
    position: absolute;
    top: 16px;
    left: 20px;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 10px;
}

.kg-graph-header h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.kg-graph-header .graph-badge {
    background: rgba(139, 92, 246, 0.15);
    color: #a78bfa;
    padding: 2px 10px;
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.kg-legend {
    position: absolute;
    bottom: 16px;
    left: 20px;
    z-index: 10;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.kg-legend-item {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.65rem;
    color: var(--text-secondary);
    background: rgba(0, 0, 0, 0.3);
    padding: 3px 8px;
    border-radius: 6px;
}

.kg-legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* ─── Sidebar Panel ─── */
.memory-sidebar {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.memory-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 18px;
}

.memory-panel-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
}

.memory-panel-icon {
    font-size: 1.1rem;
}

.memory-panel-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Stats Grid */
.memory-stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.memory-stat {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 10px;
    text-align: center;
}

.memory-stat-value {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
}

.memory-stat-label {
    font-size: 0.6rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 2px;
}

/* Layer List */
.memory-layer-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.memory-layer-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.15s;
}

.memory-layer-row:hover {
    background: rgba(255, 255, 255, 0.04);
}

.memory-layer-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.memory-layer-name {
    font-size: 0.75rem;
    color: var(--text-primary);
    flex: 1;
}

.memory-layer-count {
    font-size: 0.65rem;
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', monospace;
}

/* Pipeline Stages */
.memory-pipeline {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.pipeline-stage {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.15);
}

.pipeline-icon {
    font-size: 0.9rem;
    width: 22px;
    text-align: center;
}

.pipeline-info {
    flex: 1;
}

.pipeline-name {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-primary);
}

.pipeline-desc {
    font-size: 0.6rem;
    color: var(--text-secondary);
}

.pipeline-arrow {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.7rem;
    padding: 2px 0;
}

/* Detail Popover */
.kg-detail-popover {
    position: absolute;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px;
    min-width: 220px;
    z-index: 100;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s;
}

.kg-detail-popover.visible {
    opacity: 1;
}

.kg-detail-name {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.kg-detail-desc {
    font-size: 0.65rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Responsive */
@media (max-width: 900px) {
    .memory-layout {
        grid-template-columns: 1fr;
    }

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