.back-top-card-preview{gap:7px;padding:14px;display:grid}.back-top-card-head{justify-content:space-between;align-items:center;display:flex}.back-top-card-head small{color:var(--muted);letter-spacing:.04em;text-transform:uppercase;font-size:8px;font-weight:700}.back-top-card-head b{color:var(--ink);font-size:10px;font-weight:800}.back-top-card-track{background:color-mix(in srgb, var(--ink) 12%, var(--surface-card));border-radius:99px;height:4px;overflow:hidden}.back-top-card-track span{border-radius:inherit;background:var(--ink);height:100%;display:block}.back-top-card-lines{gap:5px;padding:4px 0;display:grid}.back-top-card-lines i{background:color-mix(in srgb, var(--ink) 14%, var(--surface-card));border-radius:3px;height:6px;display:block}.back-top-card-bottom{justify-content:space-between;align-items:flex-end;gap:8px;display:flex}.back-top-card-caption{color:#54545e;margin:0;font-size:8.5px;line-height:1.5}.back-top-card-caption b{color:var(--ink);font-weight:800}.back-top-card-fab{background:var(--ink);width:26px;height:26px;color:var(--color-white);border-radius:7px;flex:none;place-items:center;font-size:13px;font-weight:800;display:grid}.term-interactive-demo.back-top-lab-demo{border-color:var(--line);background:var(--color-white);gap:14px}.term-interactive-demo.back-top-lab-demo button{border:1px solid var(--line);background:var(--color-white);min-height:34px;color:var(--ink);font:inherit;border-radius:8px;padding:7px 11px;font-size:13px;font-weight:650}.term-interactive-demo.back-top-lab-demo button:hover:not(:disabled){border-color:color-mix(in srgb, var(--ink) 28%, var(--line));color:var(--ink)}.term-interactive-demo.back-top-lab-demo button:focus-visible{outline:2px solid var(--ink);outline-offset:2px}.term-interactive-demo.back-top-lab-demo button:disabled{opacity:.5;cursor:not-allowed}.back-top-lab-brief{color:var(--muted);margin:0;font-size:12.5px;line-height:1.6}.back-top-lab-brief b{color:var(--ink);font-weight:750}.back-top-lab-stage{border:1px solid var(--line);background:var(--soft);border-radius:10px;gap:10px;padding:14px;display:grid;position:relative}.back-top-lab-progress-head{align-items:center;gap:10px;display:flex}.back-top-lab-progress-head>span{color:var(--muted);flex:none;font-size:11.5px;font-weight:700}.back-top-lab-track{background:color-mix(in srgb, var(--ink) 10%, var(--color-white));border-radius:99px;flex:auto;min-width:0;height:6px;overflow:hidden}.back-top-lab-track span{border-radius:inherit;background:var(--ink);height:100%;transition:width 80ms linear;display:block}.back-top-lab-progress-head b{border:1px solid var(--ink);background:var(--color-white);color:var(--ink);border-radius:99px;flex:none;padding:3px 9px;font-size:11.5px;font-weight:800}.back-top-lab-scroll{border:1px solid var(--line);background:var(--color-white);color:#3d3d45;border-radius:8px;gap:12px;height:240px;padding:14px;font-size:13px;line-height:1.6;display:grid;overflow:auto}.back-top-lab-scroll:focus-visible{outline:2px solid var(--ink);outline-offset:2px}.back-top-lab-scroll small{color:var(--muted);font-size:11.5px;font-weight:700}.back-top-lab-section h4{color:var(--ink);margin:0 0 4px;font-size:14px;font-weight:800}.back-top-lab-section p{color:#4d4e56;margin:0}.back-top-lab-read{border:1px solid var(--line);background:var(--surface-card);color:var(--ink);border-radius:6px;align-items:center;gap:7px;width:fit-content;margin-top:8px;padding:6px 9px;font-size:12.5px;font-weight:650;display:flex}.term-interactive-demo.back-top-lab-demo .back-top-lab-read input[type=checkbox]{width:auto;min-height:0;accent-color:var(--ink);cursor:pointer;margin:0}.term-interactive-demo.back-top-lab-demo .back-top-action-cta{background:var(--color-rausch-600);min-width:132px;color:var(--color-white);box-shadow:0 6px 18px -8px color-mix(in srgb, var(--color-rausch-600) 70%, transparent);opacity:0;visibility:hidden;pointer-events:none;border:0;border-radius:99px;align-items:center;gap:6px;padding:9px 14px;font-size:13px;font-weight:760;transition:opacity .2s,visibility .2s,filter .12s;display:inline-flex;position:absolute;bottom:14px;right:14px}.term-interactive-demo.back-top-lab-demo .back-top-action-cta.is-visible{opacity:1;visibility:visible;pointer-events:auto}.term-interactive-demo.back-top-lab-demo .back-top-action-cta:hover{filter:brightness(.92)}.term-interactive-demo.back-top-lab-demo .back-top-action-cta:focus-visible{outline:2px solid var(--ink);outline-offset:2px}.term-card .back-top-card-preview{--ink:#174b72;--muted:#59748b;--line:#9fbed0;--soft:#e4f1f7;--color-white:#fbfdff;color:#174b72;background:#e4f1f7}.term-interactive-demo.back-top-lab-demo{--ink:#174b72;--muted:#59748b;--line:#9fbed0;--soft:#e4f1f7;--color-white:#fbfdff;--color-rausch-600:#1e6b9c;color:#174b72;background:#e7f3f8;border-color:#709db9}.term-interactive-demo.back-top-lab-demo button:focus-visible,.term-interactive-demo.back-top-lab-demo .back-top-action-cta:focus-visible{outline-color:#d99131}.back-top-lab-controls{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.back-top-lab-readout{color:var(--muted);font-size:12.5px}.back-top-lab-readout b{color:var(--ink);font-weight:800;font-family:var(--font-geist-mono), ui-monospace, SFMono-Regular, Menlo, monospace}.back-top-lab-status{border-left:3px solid var(--ink);color:#3d3d45;background:#f5f5f5;border-radius:0 6px 6px 0;margin:0;padding:11px 13px;font-size:12.5px;line-height:1.6}.back-top-example-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.back-top-example{border:1px solid var(--line);background:var(--surface-card);border-radius:8px;gap:8px;padding:12px 14px;display:grid}.back-top-example.is-good{border-left:4px solid var(--ink)}.back-top-example.is-bad{border-left:4px solid #a83a44}.back-top-example b{color:var(--ink);font-size:13px;font-weight:750}.back-top-example.is-bad b{color:#a83a44}.back-top-example p{color:#54545e;margin:0;font-size:13px;line-height:1.6}.back-top-example-cta{border:1px solid var(--ink);background:var(--ink);min-height:32px;color:var(--color-white);font:inherit;cursor:pointer;border-radius:99px;justify-self:start;padding:6px 12px;font-size:12.5px;font-weight:700}.back-top-example-cta:hover{filter:brightness(.92)}.back-top-example-cta:focus-visible{outline:2px solid var(--ink);outline-offset:2px}.back-top-example.is-bad .back-top-example-cta{background:var(--color-white);color:var(--ink);border-style:dashed}.back-top-example span{color:var(--muted);font-size:12px}.back-top-example-note{border-left:3px solid var(--ink);color:#3d3d45;background:#f5f5f5;border-radius:0 6px 6px 0;grid-column:1/-1;margin:0;padding:9px 12px;font-size:12.5px;line-height:1.6}@media (max-width:560px){.back-top-example-grid{grid-template-columns:1fr}.back-top-lab-scroll{height:220px}.term-interactive-demo.back-top-lab-demo .back-top-action-cta{min-width:0;padding:9px 12px;bottom:10px;right:10px}}@media (prefers-reduced-motion:reduce){.back-top-lab-track span,.term-interactive-demo.back-top-lab-demo .back-top-action-cta{transition:none}}