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text.sym{font-size:18px;font-weight:700}.ptb-cell text.sym.on{fill:#17202b}.ptb-cell text.sym.off{fill:#5d6d82}.ptb-cell.tap{cursor:pointer}.ptb-ring{fill:none;stroke:#fff;stroke-width:4px}.ptb-guide{fill:#ffffff14}.ptb-fmark{stroke:#a898f2;stroke-width:4px;stroke-dasharray:6 5}.ptb-stair{fill:none;stroke:#e5534b;stroke-width:6px;stroke-linejoin:round}.ptb-cards{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:8px;margin-bottom:10px;display:grid}.ptb-card{touch-action:none;user-select:none;border:2px solid var(--border);background:var(--surface-2);min-height:52px;color:var(--text);font:inherit;cursor:grab;text-align:left;border-radius:10px;align-items:center;gap:8px;padding:6px 10px;display:flex}.ptb-card[aria-pressed=true]{border-color:var(--accent);background:var(--accent-soft)}.ptb-card .q{background:var(--sim-bg);width:28px;height:28px;color:var(--sim-ink);border-radius:6px;flex-shrink:0;place-items:center;font-weight:700;display:grid}.ptb-card .cfg{font-size:16px;font-weight:600}.ptb-rules{color:var(--text-muted);flex-wrap:wrap;gap:4px 16px;margin-bottom:8px;font-size:14px;display:flex}.ptb-skel{background:var(--sim-bg);border-radius:var(--radius);width:100%;height:auto;display:block}.ptb-skel text{font-family:var(--font)}.ptb-skel .blk-letter{font-size:26px;font-weight:700}.ptb-skel .row-no{fill:#8fa0b5;font-size:18px}.ptb-skel .bracket{fill:none;stroke:#8fa0b5;stroke-width:2px}.ptb-region{cursor:pointer}.ptb-region rect{fill-opacity:.22;stroke:#ffffff40;stroke-width:1.5px;transition:fill-opacity .3s}.ptb-region:hover rect{fill-opacity:.4}.ptb-intro[data-done] .ptb-region rect{fill-opacity:.85}.ptb-region rect.flash{fill-opacity:.9}.ptb-region rect.bad{fill-opacity:.6;fill:#e5534b!important}.ptb-region .cell-div{stroke:#ffffff2e;stroke-width:1px}.ptb-intro[data-done] .cell-div{stroke:#0e172659}.ptb-skel .placed rect{fill:#fff}.ptb-skel .placed text{fill:#17202b;font-size:20px;font-weight:700}.ptb-skel .snake{fill:none;stroke:#fff;stroke-width:4px;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:1px;opacity:.85;animation:6s ease-in-out forwards ptb-draw}.ptb-intro[data-reduced] .snake{stroke-dashoffset:0;animation:none}@keyframes ptb-draw{to{stroke-dashoffset:0}}.ptb-skel .sub-chip{fill:#0e1726;stroke:#fff;stroke-width:1.5px}.ptb-skel .sub-label{fill:#fff;font-size:18px;font-weight:700}.ptb-ghost{pointer-events:none;z-index:50;background:var(--accent);color:#fff;border-radius:10px;padding:8px 12px;font-weight:700;position:fixed;top:0;left:0;box-shadow:0 6px 18px #00000059}.ptb-msg{border-radius:8px;margin:10px 0 0;padding:8px 10px;font-size:15px}.ptb-msg.ok{background:var(--good-soft);color:var(--good)}.ptb-msg.bad{background:var(--warn-soft);color:var(--warn)}.ptb-msg.info{background:var(--accent-soft)}.ptb-reveal p{margin:10px 0;font-size:15px}.ptb-progress{color:var(--text-muted);margin:6px 0 0;font-size:13px}.ptb-general{color:var(--sim-ink);margin:8px 4px;font-size:15px}.ptb-strip{width:100%;max-width:560px;height:auto;margin:4px auto 0;display:block}.ptb-strip text{font-family:var(--font);fill:var(--sim-ink)}.ptb-strip .strip-title,.ptb-strip .strip-cap{font-size:20px}.ptb-strip .obox{fill:#1b2a40;stroke:#8fa0b5;stroke-width:2px}.ptb-strip .arrow{font-size:34px;font-weight:700}.ptb-strip .arrow.up{fill:#f6c85f}.ptb-strip .arrow.down{fill:#6fb6e8}.ptb-step{flex-wrap:wrap;align-items:center;gap:8px;margin:8px 0;display:flex}.ptb-step input[type=range]{flex:120px;min-width:0;min-height:40px}.ptb-readout{color:var(--sim-ink);margin:4px;font-size:15px}.ptb-zrow{grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:8px;display:grid}.ptb-zlabel{text-align:center;gap:2px;font-size:14px;display:grid}.ptb-zlabel .zval{font-size:20px}.ptb-zlabel input{width:100%;min-height:36px}.ptb-picks{margin:8px 0 10px}.ptb-addr-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));align-items:start;gap:12px;display:grid}.ptb-elhead{align-items:center;gap:10px;font-size:16px;display:flex}.ptb-bigcell{color:#17202b;border-radius:8px;flex-shrink:0;place-items:center;width:58px;height:58px;font-size:24px;font-weight:700;line-height:1;display:grid}.ptb-bigcell small{font-size:12px;font-weight:400}.ptb-cfg{flex-wrap:wrap;gap:6px;margin:10px 0 4px;display:flex}.ptb-cfg .chip{border:2px solid var(--border);background:var(--surface-2);border-radius:8px;padding:3px 9px;font-size:18px}.ptb-cfg .chip.core{color:var(--text-muted)}.ptb-cfg .chip[data-maxn]{border-color:#e5534b}.ptb-cfg .chip[data-val]{background:var(--accent-soft);font-weight:700}.ptb-legend{color:var(--text-muted);margin:0 0 6px;font-size:13px}.ptb-legend .lg{border:2px solid var(--border);border-radius:6px;margin-right:6px;padding:0 6px;display:inline-block}.ptb-legend .lg.maxn{border-color:#e5534b}.ptb-legend .lg.val{background:var(--accent-soft)}.ptb-steps{gap:4px;margin:6px 0;padding-left:20px;font-size:15px;display:grid}.ptb-old{color:var(--text-muted);font-size:14px}.ptb-exc{margin:6px 0 0;font-size:14px}.ptb-trans-rows{gap:8px;display:grid}.ptb-trans-row{border-bottom:1px solid var(--border);grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"who dn""boxes boxes";align-items:center;gap:4px 10px;padding-bottom:6px;display:grid}.ptb-trans-row .who{grid-area:who;font-size:15px;font-weight:600}.ptb-trans-row .who small{color:var(--text-muted);font-size:13px;font-weight:400;display:block}.ptb-trans-row .dn{color:var(--text-muted);grid-area:dn;font-size:14px}.ptb-trans-row .dn[data-partial]{color:var(--good);font-weight:700}.ptb-dboxes{grid-area:boxes;gap:3px;display:flex}.ptb-dboxes .db{border:2px solid var(--border);letter-spacing:-2px;border-radius:5px;place-items:center;width:40px;height:34px;font-size:17px;font-weight:700;display:grid}.ptb-verdicts{gap:6px;margin-top:10px;font-size:15px;display:grid}.ptb-verdicts>div{background:var(--warn-soft);border-radius:8px;padding:6px 10px}.ptb-verdicts>div[data-yes]{background:var(--good-soft)}.ptb-fig .mo-cell{fill:var(--surface-2);stroke:var(--border);stroke-width:2px}.ptb-fig .mo-cell.bad{stroke:#e5534b;stroke-width:3px}.ptb-fig .mo-cell.good{stroke:var(--good);stroke-width:3px}.ptb-fig .mo-sym{text-anchor:middle;font-size:22px;font-weight:700}.ptb-fig .mo-num{text-anchor:middle;fill:var(--text-muted);font-size:18px}.ptb-fig .mo-div{stroke:var(--border);stroke-width:2px}.ptb-groups{grid-template-columns:repeat(auto-fill,minmax(76px,1fr));gap:6px;display:grid}.ptb-group{border-top:6px solid var(--c);background:var(--surface-2);border-radius:8px;padding:4px 6px;line-height:1.25;display:grid}.ptb-group .g{font-size:20px;font-weight:700}.ptb-group .old{font-size:14px;font-weight:600}.ptb-group .ex{color:var(--text-muted);font-size:12px}.ptb-key{border-left:12px solid var(--c,#9aa3ad);background:var(--surface-2);border-radius:5px;margin:2px 4px 2px 0;padding:0 6px;font-size:14px;display:inline-block}@media (prefers-reduced-motion:reduce){.ptb-skel .snake{stroke-dashoffset:0;animation:none}}.ptb-fig .mo-svg{max-width:420px;margin:0 auto}.ptb-fig .mo-svg .cap.mid{font-size:20px}.ptb-strip .strip-cap.dim{fill:var(--sim-dim)}