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minmax(280px,360px);align-items:stretch}.explore-panel[hidden]{display:none}.explore-stage:has(.explore-panel[hidden]){grid-template-columns:1fr}}.explore-board{display:grid;grid-template-columns:18px 1fr;gap:.55rem;min-width:0}.explore-viewport{position:relative;height:min(72vh,760px);min-height:480px;overflow:hidden;border:1px solid color-mix(in srgb,var(--line) 80%,transparent);border-radius:var(--radius);background:linear-gradient(90deg,color-mix(in srgb,#f7fafc 88%,var(--accent) 12%),color-mix(in srgb,#e4eef3 92%,transparent));box-shadow:var(--shadow);cursor:grab;touch-action:none;outline:none}.explore-viewport.is-dragging{cursor:grabbing}.explore-viewport:focus-visible{box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 35%,transparent),var(--shadow)}.explore-world{position:absolute;left:0;right:0;top:0;width:100%;transform-origin:0 0;will-change:transform}.explore-eras{position:absolute;inset:0;pointer-events:none}.explore-era-band{position:absolute;left:0;right:0;border:0;padding:0;margin:0;cursor:pointer;pointer-events:auto;text-align:left;background:color-mix(in srgb,var(--era, var(--accent)) 9%,transparent);border-block:1px dashed color-mix(in srgb,var(--era, var(--accent)) 32%,transparent);color:var(--ink);font:inherit;overflow:visible;z-index:0}.explore-era-band span{position:absolute;top:.4rem;left:.45rem;display:inline-flex;flex-direction:column;gap:.08rem;padding:.18rem .45rem;font-size:.72rem;font-weight:700;border-radius:.35rem;background:color-mix(in srgb,#fff 88%,var(--era) 12%);color:color-mix(in srgb,var(--ink) 78%,var(--era));max-width:min(26vw,8.5rem);box-shadow:0 2px 8px color-mix(in srgb,#132028 6%,transparent);pointer-events:none;z-index:1}.explore-era-band small{font-size:.62rem;font-weight:600;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.explore-era-band:hover{background:color-mix(in srgb,var(--era, var(--accent)) 16%,transparent)}.explore-axis{position:absolute;top:0;bottom:0;left:50%;width:2px;transform:translate(-50%);background:color-mix(in srgb,var(--accent) 50%,var(--line));z-index:1}.explore-tick{position:absolute;left:50%;width:10px;height:1px;margin-left:-5px;background:color-mix(in srgb,var(--accent) 55%,var(--line));transform:translateY(-50%);z-index:4}.explore-tick span{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);white-space:nowrap;font-size:.64rem;color:var(--muted);font-weight:700;width:auto;text-align:center;padding:.12rem .4rem;border-radius:999px;background:color-mix(in srgb,var(--paper) 92%,#fff);border:1px solid color-mix(in srgb,var(--line) 70%,transparent);box-shadow:0 1px 4px color-mix(in srgb,#132028 5%,transparent)}.explore-marks{position:absolute;inset:0;z-index:2}.explore-mark{position:absolute;left:0;width:100%;height:0;border:0;background:transparent;padding:0;cursor:pointer;z-index:calc(3 + var(--lane, 0));text-align:left}.explore-dot{position:absolute;left:50%;top:0;transform:translate(-50%,-50%);width:12px;height:12px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--paper) 70%,#fff);transition:transform .2s var(--ease),background .2s var(--ease);z-index:5}.explore-mark:hover .explore-dot,.explore-mark.is-selected .explore-dot{transform:translate(-50%,-50%) scale(1.28);background:var(--accent-2)}.explore-stem{position:absolute;top:0;height:1px;width:calc(var(--explore-stem, 14px) + var(--lane, 0) * (var(--explore-card-w, 220px) + var(--explore-lane-gap, 10px)));transform:translateY(calc(-50% + var(--nudge, 0px)));background:color-mix(in srgb,var(--accent) 38%,transparent);pointer-events:none;z-index:2}.explore-mark.is-right .explore-stem{left:50%}.explore-mark.is-left .explore-stem{right:50%;left:auto}.explore-span{position:absolute;left:50%;top:0;width:3px;border-radius:2px;background:color-mix(in srgb,var(--accent) 45%,transparent);transform:translate(-50%);z-index:1}.explore-card{position:absolute;top:0;transform:translateY(calc(-50% + var(--nudge, 0px)));display:grid;gap:.15rem;width:var(--explore-card-w, 220px);max-width:calc(50% - var(--explore-stem, 14px) - 12px);box-sizing:border-box;padding:.45rem .7rem .55rem;border:1px solid color-mix(in srgb,var(--line) 85%,transparent);background:#fff;box-shadow:0 8px 18px color-mix(in srgb,#132028 7%,transparent);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);z-index:3}.explore-mark.is-right .explore-card{left:calc(50% + var(--explore-stem, 14px) + var(--lane, 0) * (var(--explore-card-w, 220px) + var(--explore-lane-gap, 10px)));right:auto;border-radius:.3rem .9rem .3rem .75rem}.explore-mark.is-left .explore-card{right:calc(50% + var(--explore-stem, 14px) + var(--lane, 0) * (var(--explore-card-w, 220px) + var(--explore-lane-gap, 10px)));left:auto;border-radius:.9rem .3rem .75rem;text-align:right}.explore-mark:hover .explore-card,.explore-mark.is-selected .explore-card{border-color:color-mix(in srgb,var(--accent) 45%,var(--line));box-shadow:0 10px 22px color-mix(in srgb,#132028 10%,transparent)}.explore-card-year{color:var(--accent);font-size:.72rem;font-weight:700}.explore-card-title{font-family:var(--font);font-size:.98rem;font-weight:650;color:var(--ink);line-height:1.25}.explore-card-sum{color:var(--muted);font-size:.84rem;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.explore-panel{position:relative;border:1px solid var(--line);border-radius:var(--radius);background:color-mix(in srgb,#f7fafc 92%,var(--accent) 8%);box-shadow:var(--shadow);padding:1rem 1.05rem 1.2rem;max-height:min(72vh,760px);overflow:auto}.explore-panel-close{position:absolute;top:.45rem;right:.55rem;border:0;background:transparent;font-size:1.4rem;line-height:1;color:var(--muted);cursor:pointer}.explore-panel-kicker{margin:0;color:var(--accent);font-size:.8rem;font-weight:700}.explore-panel h2{margin:.25rem 0 .55rem;font-family:var(--font);font-size:1.35rem;line-height:1.2;padding-right:1.5rem}.explore-panel-body{color:var(--muted);font-size:.95rem}.explore-panel-img{width:100%;aspect-ratio:16 / 10;object-fit:cover;border-radius:.3rem .9rem .3rem .8rem;margin-bottom:.75rem;background:#1a3038}.explore-minimap{margin:0;min-height:0}.explore-minimap-track{position:relative;height:100%;min-height:480px;height:min(72vh,760px);width:18px;border-radius:999px;border:1px solid var(--line);background:color-mix(in srgb,#fff 50%,var(--paper-2));overflow:hidden;cursor:pointer}.explore-mini-dot{position:absolute;left:50%;width:4px;height:4px;border-radius:50%;background:var(--accent);transform:translate(-50%,-50%);opacity:.75}.explore-minimap-window{position:absolute;left:2px;width:calc(100% - 4px);border-radius:999px;border:2px solid var(--accent-2);background:color-mix(in srgb,var(--accent-2) 16%,transparent);pointer-events:none}.explore-status{margin:.55rem 0 0;font-size:.82rem}@media(max-width:959px){.explore-panel{max-height:none}.explore-viewport,.explore-minimap-track{height:min(68vh,640px)}}