#cause-chain {
    --pipeline-line: #3a4853;
    position: relative;
    min-width: 0;
    border-block: 1px solid var(--border);
    background: #171c20;
    isolation: isolate;
}
#cause-chain .pipeline-header {
    display: flex;
    align-items: center;
    gap: 20px;
    min-height: 48px;
    padding: 5px 20px;
    border-bottom: 1px solid #2b343c;
    font: 11px/1.5 var(--mono);
}
#cause-chain .pipeline-wordmark { color: var(--text-secondary); white-space: nowrap; }
#cause-chain .pipeline-wordmark > span { margin-inline: 8px; color: #596975; }
#cause-chain .pipeline-demo { margin-left: auto; color: var(--text-muted); }
#cause-chain .pipeline-controls { display: flex; gap: 4px; }
#cause-chain [hidden] { display: none !important; }
#cause-chain .pipeline-controls button {
    position: relative;
    display: grid;
    place-items: center;
    flex: 0 0 36px;
    width: 36px;
    height: 36px;
    padding: 0;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid transparent;
    border-radius: 4px;
    cursor: pointer;
}
#cause-chain .pipeline-controls button:hover { color: var(--accent); border-color: var(--border); background: #252e36; }
#cause-chain .pipeline-controls button:disabled { opacity: .35; cursor: default; }
#cause-chain .pipeline-controls svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
#cause-chain .pipeline-play-icon, #cause-chain .pipeline-pause[aria-pressed="true"] .pipeline-pause-icon { display: none; }
#cause-chain .pipeline-pause[aria-pressed="true"] .pipeline-play-icon { display: block; }
#cause-chain button:focus-visible { outline: 2px solid var(--accent); outline-offset: -3px; }
#cause-chain [data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    z-index: 3;
    right: 0;
    bottom: calc(100% + 8px);
    width: max-content;
    max-width: 200px;
    padding: 7px 10px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--surface-raised);
    color: var(--text-primary);
    font: 12px/1.4 var(--sans);
    pointer-events: none;
    opacity: 0;
}
#cause-chain [data-tooltip]:is(:hover, :focus-visible)::after { opacity: 1; }
#cause-chain .pipeline-scene { position: relative; margin: 0 8px; }
#cause-chain .pipeline-canvas { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
#cause-chain .pipeline-stages { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
#cause-chain .pipeline-stage {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-width: 0;
    height: 184px;
    padding: 14px 12px 12px;
    text-align: left;
    color: var(--text-secondary);
    background: transparent;
    border: 0;
    border-radius: 0;
    cursor: pointer;
    transition: color .2s ease, background-color .2s ease;
}
#cause-chain .pipeline-stage::after {
    content: "";
    position: absolute;
    inset: auto 16px 0;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .3s ease;
}
#cause-chain .pipeline-stage:is(:hover, [aria-pressed="true"]) { color: var(--accent-bright); background: rgba(150, 200, 250, .025); }
#cause-chain .pipeline-stage[aria-pressed="true"]::after { transform: scaleX(1); }
#cause-chain .pipeline-stage-heading { display: flex; align-items: center; gap: 8px; font: 12px/1.5 var(--mono); }
#cause-chain .pipeline-number { color: #71818d; font-size: 10px; }
#cause-chain .pipeline-stage[aria-pressed="true"] .pipeline-number { color: var(--accent); }
#cause-chain .pipeline-stage-caption { color: var(--text-muted); font: 12px/1.5 var(--sans); }
#cause-chain .pipeline-context { display: grid; grid-template-columns: 1.3fr 1fr; gap: 20px; padding: 12px 20px; border-top: 1px solid #2b343c; }
#cause-chain .pipeline-event, #cause-chain .pipeline-detail { display: flex; min-width: 0; flex-direction: column; gap: 4px; }
#cause-chain .pipeline-source { color: var(--accent); font: 10px/1.5 var(--mono); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#cause-chain .pipeline-headline { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; color: var(--text-secondary); font: 12px/1.6 var(--sans); min-height: 39px; overflow-wrap: anywhere; }
#cause-chain .pipeline-state { color: var(--text-primary); font: 12px/1.5 var(--sans); }
#cause-chain .pipeline-description { color: var(--text-muted); font: 11px/1.65 var(--sans); min-height: 37px; }
#cause-chain .pipeline-progress { height: 2px; background: #27313a; overflow: hidden; }
#cause-chain .pipeline-progress > span { display: block; width: 100%; height: 100%; background: var(--accent); transform: scaleX(var(--pipeline-progress, 0)); transform-origin: left; }
#cause-chain:not(.pipeline-ready) .pipeline-stage { height: 110px; cursor: default; }
@media (min-width: 1200px) {
    #cause-chain .pipeline-header { gap: 12px; font-size: 10px; }
    #cause-chain .pipeline-wordmark > span { margin-inline: 3px; }
    #cause-chain .pipeline-stage-heading { font-size: 11px; gap: 6px; }
    #cause-chain .pipeline-stage-caption { font-size: 11px; }
    #cause-chain .pipeline-context { grid-template-columns: 1fr 1fr; min-height: 108px; }
}
@media (max-width: 759px) {
    #cause-chain .pipeline-header { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 0 12px; padding: 6px 16px; }
    #cause-chain .pipeline-wordmark { font-size: 10px; white-space: normal; }
    #cause-chain .pipeline-wordmark > span { margin-inline: 3px; }
    #cause-chain .pipeline-controls { grid-area: 1 / 2; }
    #cause-chain .pipeline-demo { grid-column: 1 / -1; margin: 0; font-size: 10px; }
    #cause-chain .pipeline-stages { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    #cause-chain .pipeline-stage { height: 192px; padding: 12px 10px 10px; }
    #cause-chain .pipeline-stage-heading { font-size: 11px; gap: 7px; }
    #cause-chain .pipeline-stage-caption { font-size: 11px; }
    #cause-chain .pipeline-stage:nth-child(n+3) { border-top: 1px solid #2b343c; }
    #cause-chain .pipeline-scene { margin-inline: 8px; }
    #cause-chain .pipeline-context { grid-template-columns: 1fr; gap: 10px; padding: 12px 16px; }
    #cause-chain .pipeline-description { min-height: 0; }
}
@media (prefers-reduced-motion: reduce) {
    #cause-chain *, #cause-chain *::after { transition: none !important; }
}