:root{--bg:#0a0a14;--bg-soft:#111627;--panel:#151e33;--text:#ebf2ff;--muted:#a6b8d6;--line:#2c3f63;--red:#f36;--green:#0f8;--cyan:#00d4ff;--gold:gold;--amber:#fa0;--font-sans:"Space Grotesk", "Avenir Next", "Segoe UI", sans-serif;--font-mono:"JetBrains Mono", "Fira Code", ui-monospace, monospace}:root[data-theme=light]{--bg:#f4f6ff;--bg-soft:#fff;--panel:#eef2ff;--text:#0f1624;--muted:#2f405f;--line:#b5c3df}*{box-sizing:border-box}html,body{min-height:100%;margin:0;padding:0}body{background:radial-gradient(1200px 500px at 0% 0%, #00d4ff1f, transparent 55%), radial-gradient(900px 400px at 100% 40%, #ff33661f, transparent 60%), var(--bg);color:var(--text);font-family:var(--font-sans);line-height:1.5}.skip-link{z-index:100;background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-weight:700;text-decoration:none;position:absolute;top:-48px;left:12px}.skip-link:focus-visible{top:10px}#app{width:min(1200px,100%);margin:0 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transparent);border-radius:0 10px 10px 0;margin:0 0 14px;padding:12px 14px}.primer-lead{color:var(--text);margin:0 0 10px;font-size:.95rem}.primer-lead:last-child{margin-bottom:0}.primer-lead em{color:var(--text);text-underline-offset:2px;font-style:normal;font-weight:700;-webkit-text-decoration:underline dotted;text-decoration:underline dotted}.canvas-legend{color:var(--muted);margin:6px 0 10px;font-size:.82rem;line-height:1.7}.lg{color:#06101f;border:1px solid #00000059;border-radius:6px;padding:1px 7px;font-size:.76rem;font-weight:700;display:inline-block}.lg-red{background:#ff6a8f}.lg-green{background:#4dffb0}.lg-cyan{background:#7fe6ff}.lg-dot{background:#7fa6e0}.det-line{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.info-dot{border:1px solid var(--cyan);background:color-mix(in srgb, var(--cyan) 18%, var(--panel));width:1.5rem;height:1.5rem;min-height:1.5rem;color:var(--text);font-style:italic;font-weight:700;font-family:var(--font-mono);cursor:pointer;border-radius:50%;flex:none;padding:0;line-height:1}.info-dot:hover{background:color-mix(in srgb, var(--cyan) 32%, var(--panel))}.det-tip{border:1px dashed var(--line);background:color-mix(in srgb, var(--panel) 60%, transparent);color:var(--muted);border-radius:8px;margin:4px 0 10px;padding:10px 12px;font-size:.88rem}.embed-viz{border:1px solid var(--line);background:color-mix(in srgb, var(--bg-soft) 70%, transparent);border-radius:10px;margin:12px 0;padding:12px}.embed-title{margin:0 0 6px;font-size:1rem}.embed-hint{color:var(--muted);font-size:.82rem;font-weight:400}.embed-caption{color:var(--muted);margin:0 0 12px;font-size:.9rem}.embed-caption strong{color:var(--text)}.blk-key{color:#06101f;border-radius:5px;padding:0 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th.blk-embed{background:#4dffb0}.embed-grid tr.embed-targetrow td,.embed-grid tr.embed-targetrow th{border-top:2px solid var(--red)}.embed-grid tr.embed-subtracting td{outline:2px solid var(--gold);outline-offset:-2px}.embed-grid tr.embed-resultrow th,.embed-grid tr.embed-resultrow td{border-top:2px dashed var(--cyan);font-weight:700}.embed-grid tr.embed-resultrow-done td{border-top:2px solid var(--green)}.embed-grid td.emerge-hot{outline:2px solid var(--green);outline-offset:-2px}.embed-grid .blk-ellipsis{color:var(--muted);background:0 0;border:none}.embed-controls{flex-wrap:wrap;align-items:center;gap:10px;margin-top:12px;display:flex}.embed-controls .btn{width:auto}.embed-collapse-note{color:var(--muted);font-size:.84rem}.embed-controls .btn:disabled{opacity:.55;cursor:not-allowed}.meter-caption{color:var(--muted);margin:8px 0 4px;font-size:.88rem}.meter-caption strong{color:var(--text)}.callout-compare{border:1px solid var(--line);border-left:4px solid 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