.stress-bar {
    width: 100%;
    max-width: 220px;
    height: 0.62rem;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 999px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.stress-fill {
    height: 100%;
    border-radius: inherit;
    transition: width 200ms ease;
}

.stress-fill.stable {
    background: #00d4aa;
}

.stress-fill.watch {
    background: #f4c542;
}

.stress-fill.approaching {
    background: #ff6b35;
}

.stress-fill.critical {
    background: #ff2d55;
}

.stress-fill.unknown {
    background: var(--text-muted);
}

.chart-shell {
    position: relative;
    padding: 0.75rem 0.85rem 1rem;
}

.chart-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.chart-meta-stack {
    display: flex;
    flex-direction: column;
    gap: 0.18rem;
}

.chart-meta {
    color: var(--text-muted);
    font-size: 0.74rem;
    letter-spacing: 0.03em;
}

.chart-reset-btn {
    border: 1px solid var(--border);
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.02);
    border-radius: 8px;
    padding: 0.25rem 0.5rem;
    cursor: pointer;
    font-size: 0.72rem;
}

.chart-reset-btn:hover,
.chart-reset-btn:focus-visible {
    outline: none;
    border-color: var(--accent-cyan);
    color: var(--text-primary);
}

.chart-legend-row {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    margin-bottom: 0.45rem;
}

.legend-chip {
    font-size: 0.72rem;
    color: var(--text-muted);
}

.legend-gradient {
    width: 180px;
    height: 10px;
    border-radius: 999px;
    background: linear-gradient(90deg, #2f6ff5 0%, #f5f7fa 50%, #f46060 100%);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.heatmap-stage,
.timeline-stage,
.network-stage,
.pattern-stage {
    position: relative;
    width: 100%;
}

.heatmap-canvas {
    width: 100%;
    height: 420px;
    display: block;
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    background: rgba(10, 10, 16, 0.65);
}

.timeline-canvas {
    width: 100%;
    height: 320px;
    display: block;
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    background: rgba(10, 10, 16, 0.65);
}

.network-canvas {
    width: 100%;
    height: 420px;
    display: block;
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    background: rgba(10, 10, 16, 0.65);
}

.pattern-radar-canvas {
    width: 100%;
    height: 320px;
    display: block;
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    background: rgba(10, 10, 16, 0.65);
}

.heatmap-canvas:focus-visible,
.timeline-canvas:focus-visible,
.network-canvas:focus-visible,
.pattern-radar-canvas:focus-visible {
    outline: 2px solid var(--accent-cyan);
    outline-offset: 2px;
}

.chart-tooltip {
    position: absolute;
    z-index: 30;
    pointer-events: none;
    min-width: 160px;
    background: rgba(12, 12, 18, 0.94);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    padding: 0.45rem 0.55rem;
    color: var(--text-primary);
    font-size: 0.75rem;
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.3);
}

.chart-tooltip p {
    margin: 0.15rem 0;
}

.network-toolbar {
    margin-bottom: 0.35rem;
}

.network-toggle-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-bottom: 0.55rem;
}

.network-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.28rem;
    border: 1px solid var(--border-subtle);
    border-radius: 999px;
    padding: 0.15rem 0.45rem;
    font-size: 0.72rem;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.02);
}

.network-toggle input {
    margin: 0;
}

.network-legend-text {
    margin: 0.5rem 0 0;
    color: var(--text-muted);
    font-size: 0.72rem;
    letter-spacing: 0.01em;
}

@media (max-width: 768px) {
    .heatmap-canvas {
        height: 340px;
    }

    .timeline-canvas {
        height: 280px;
    }

    .network-canvas {
        height: 320px;
    }

    .pattern-radar-canvas {
        height: 280px;
    }

    .legend-gradient {
        width: 120px;
    }
}