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ease}.filter-tab-btn:hover{color:var(--ink-primary)}.filter-tab-btn.is-active{color:var(--ink-on-cobalt)}.filter-tab-active-bg{position:absolute;top:0;right:0;bottom:0;left:0;background-color:var(--bg-cobalt);z-index:0}.filter-tab-content{position:relative;z-index:1;display:inline-flex;align-items:center;gap:.45rem}.filter-tab-count{font-family:var(--font-mono);font-size:.72rem;padding:.05rem .35rem;background-color:#121c191a}.filter-tab-btn.is-active .filter-tab-count{background-color:#f8faff33;color:var(--ink-on-cobalt)}.tracing-timeline-root{position:relative}.tracing-rail-track{position:absolute;top:1.8rem;bottom:1.8rem;left:1.35rem;width:2px;pointer-events:none}.tracing-rail-bg{position:absolute;top:0;right:0;bottom:0;left:0;background-color:var(--rule-light)}.tracing-rail-beam{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(180deg,var(--signal-emerald) 0%,var(--bg-cobalt) 65%,var(--signal-cyan) 100%);transform-origin:top center}.tracing-timeline-items{position:relative}.tracing-entry{position:relative;padding-left:2.85rem}.tracing-solder-pad{position:absolute;left:1.02rem;top:1.68rem;width:12px;height:12px;border:2px solid var(--bg-vellum);outline:1px solid var(--rule-strong);z-index:2}.tracing-solder-pad.is-current{outline-color:var(--signal-emerald);box-shadow:0 0 0 3px #10b9812e}.lightbox-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;background-color:#0b1915e0;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;padding:1.5rem}.lightbox-shell{width:min(1040px,100%);max-height:92vh;background-color:var(--bg-pcb-pine);border:1px solid var(--rule-pine-bright);color:var(--ink-on-pine);display:flex;flex-direction:column;overflow:hidden}.lightbox-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.85rem 1.25rem;border-bottom:1px solid var(--rule-pine);background-color:var(--bg-pcb-pine-deep)}.lightbox-title-group{display:flex;flex-direction:column;gap:.2rem;min-width:0}.lightbox-project-title{font-family:var(--font-display);font-weight:700;font-size:1.02rem;color:var(--ink-on-pine)}.lightbox-counter{font-size:.76rem;color:var(--ink-on-pine-secondary)}.lightbox-close-btn{background-color:var(--bg-pcb-pine-elevated);border:1px solid var(--rule-pine-bright);color:var(--ink-on-pine);padding:.4rem .75rem;font-family:var(--font-mono);font-size:.75rem;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:.35rem;transition:border-color .15s ease,background-color .15s ease}.lightbox-close-btn:hover{border-color:var(--signal-cyan);background-color:#214439}.lightbox-stage{position:relative;background-color:#07110e;display:flex;align-items:center;justify-content:center;height:clamp(280px,60vh,620px);padding:1rem}.lightbox-img{max-width:100%;max-height:100%;object-fit:contain;display:block}.lightbox-nav-btn{position:absolute;top:50%;transform:translateY(-50%);background-color:#11241ee6;border:1px solid var(--rule-pine-bright);color:var(--ink-on-pine);width:40px;height:44px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:border-color .15s ease,background-color .15s ease}.lightbox-nav-btn:hover{border-color:var(--signal-cyan);background-color:var(--bg-pcb-pine-elevated)}.lightbox-nav-prev{left:.85rem}.lightbox-nav-next{right:.85rem}.lightbox-thumb-bar{display:flex;gap:.5rem;padding:.75rem 1.25rem;background-color:var(--bg-pcb-pine-deep);border-top:1px solid var(--rule-pine);overflow-x:auto}.lightbox-thumb-item{flex:0 0 132px;background-color:var(--bg-pcb-pine-elevated);border:1px solid var(--rule-pine);padding:.3rem;cursor:pointer;display:flex;flex-direction:column;gap:.3rem;text-align:left;color:var(--ink-on-pine-secondary);transition:border-color .15s ease}.lightbox-thumb-item:hover{border-color:var(--signal-cyan)}.lightbox-thumb-item.is-active{border:2px solid var(--signal-cyan);color:var(--ink-on-pine)}.lightbox-thumb-item img{width:100%;aspect-ratio:4 / 3;object-fit:cover;display:block}.lightbox-thumb-item span{font-family:var(--font-mono);font-size:.65rem;line-height:1.25;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}@media(max-width:720px){.tracing-rail-track{left:.85rem}.tracing-entry{padding-left:2.15rem}.tracing-solder-pad{left:.52rem}.lightbox-backdrop{padding:.65rem}}