.sb-lab{--sb-ink:#33213e;--sb-accent:#6f247e;--sb-soft:#f5eafa;margin:2.4rem 0;padding:clamp(18px,3vw,38px);background:#fff;color:var(--sb-ink);border:1px solid #dac8df;border-radius:22px;box-shadow:0 12px 34px #40233a0b;min-width:0}
.theme-story .sb-lab{--sb-accent:#96385a;--sb-soft:#fff0e8;border-radius:6px;border-top:6px solid #96385a}
.sb-lab *{box-sizing:border-box}.sb-lab h2{font-size:clamp(26px,3.2vw,38px);max-width:26ch}.sb-lab h3{font-size:21px;line-height:1.3}.sb-lab p,.sb-lab li{max-width:70ch}.sb-kicker{color:#65496e;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.sb-intro{font-size:18px}.sb-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(230px,.7fr);gap:28px;align-items:start}.sb-lab figure{margin:0;min-width:0}.sb-reference{padding:14px;border-radius:14px;background:#faf6fc;border:1px solid #e5d7e9}.sb-reference a{display:block}.sb-reference img{width:100%;height:auto;max-height:560px;object-fit:contain}.sb-reference figcaption{font-size:13px;line-height:1.6;margin-top:12px;color:#604c68}.sb-chip{display:inline-flex;align-items:center;padding:8px 12px;background:var(--sb-soft);border:1px solid #d4bddc;border-radius:30px;font-weight:750;color:#4c255e}.sb-legend{display:flex;flex-wrap:wrap;gap:8px;margin:1rem 0}.sb-board{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:6px;max-width:440px;padding:12px;background:#faf4fb;border:1px solid #d9c4e0;border-radius:16px}.sb-cell{display:flex;align-items:center;justify-content:center;aspect-ratio:1;background:#fff;border:1px solid #d7c9de;border-radius:8px;font-size:clamp(14px,3vw,22px);font-weight:800;color:#5f4f68}.sb-cell.is-counted{background:#6f247e;color:#fff;border:2px solid #42154c}.sb-board-caption{font-size:13px;line-height:1.6;margin:.7rem 0;color:#604c68}.sb-controls{padding:18px;background:var(--sb-soft);border:1px solid #d8c0df;border-radius:12px;margin:1rem 0}.sb-controls label{display:block;font-weight:750}.sb-controls input[type=range]{width:100%;accent-color:var(--sb-accent);margin:14px 0;height:34px}.sb-lab output{display:block;min-height:4em;font-weight:700;line-height:1.6}.sb-table{overflow:auto;border:1px solid #d6c5dd;border-radius:12px;margin:1.2rem 0;overscroll-behavior-x:contain}.sb-table:focus-visible{outline:3px solid #2670b5;outline-offset:4px}.sb-table table{width:100%;min-width:490px;border-collapse:collapse;font-size:15px;line-height:1.6;table-layout:auto;background:#fff}.sb-table th,.sb-table td{padding:13px 16px;border-bottom:1px solid #e5d9e9;text-align:left;word-break:normal;overflow-wrap:normal;vertical-align:top}.sb-table th{background:#f3e9f6;color:#4c255e;font-weight:800}.sb-table tr:last-child td{border:0}.sb-table tbody tr.is-active td{background:#f3e4f7;box-shadow:inset 3px 0 #6f247e}.sb-source{font-size:13px;line-height:1.7;color:#604c68;margin:1.2rem 0 0!important}.sb-source a{text-decoration:underline}.sb-actions{display:flex;flex-wrap:wrap;gap:8px;margin:1rem 0}.sb-lab button{padding:10px 16px;border:1px solid #6f247e;border-radius:9px;background:#6f247e;color:#fff;font:700 15px/1.5 system-ui;min-height:44px}.sb-lab button[aria-pressed=true]{box-shadow:inset 0 0 0 2px #fff,0 0 0 2px #6f247e}.sb-lab button:focus-visible,.sb-lab input:focus-visible,.sb-lab summary:focus-visible{outline:3px solid #2474b6;outline-offset:4px}.sb-lab button:disabled{opacity:.5}.sb-step{padding:18px;border:1px solid #dfcfe5;border-radius:12px;background:#fff;margin:12px 0}.sb-step h3{margin-bottom:.65rem}.sb-step [data-stage-board]{margin-bottom:1rem}.sb-lab [hidden]{display:none!important}.sb-stepper-nav{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.sb-stepper-nav span{font-weight:750}.sb-progress{display:flex;gap:7px;margin:14px 0}.sb-progress span{height:7px;flex:1;background:#e8dce9;border-radius:8px}.sb-progress .is-current{background:#6f247e}.sb-equation{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:1rem 0}.sb-equation strong{font-size:clamp(23px,4vw,36px);padding:12px 15px;background:#f4e8f7;border:1px solid #dac2e1;border-radius:12px;white-space:nowrap}.sb-checks{display:grid;gap:12px;padding:0;margin:1rem 0;list-style:none}.sb-checks label{display:flex;align-items:flex-start;gap:12px;padding:14px;border:1px solid #decde3;border-radius:10px;background:#faf5fc;line-height:1.6}.sb-checks input{flex:0 0 20px;width:20px;height:20px;margin-top:4px;accent-color:#6f247e}.sb-checks input:checked+span{text-decoration:line-through;color:#604c68}.sb-lab details{padding:14px 16px;border:1px solid #decde3;border-radius:12px;margin:10px 0}.sb-lab summary{font-weight:800;cursor:pointer}.sb-lab details p{margin:12px 0 0}.sb-state-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.sb-state-cards article{padding:18px;background:#faf5fc;border:1px solid #decde3;border-radius:12px}.sb-state-cards strong{display:block;font-size:28px;color:#6f247e;margin-bottom:8px}.sb-state-cards p{margin:0;font-size:15px;line-height:1.6}
@media(max-width:700px){.sb-split{grid-template-columns:minmax(0,1fr)}.sb-reference{max-width:390px;margin:auto!important}.sb-lab{padding:18px 14px;border-radius:15px}.sb-state-cards{grid-template-columns:1fr}.sb-cell{border-radius:5px}.sb-board{gap:4px;padding:8px}.sb-lab .sb-table table{min-width:470px}.sb-table th,.sb-table td{padding:12px}.sb-equation strong{padding:8px 10px}.sb-step{padding:13px}.sb-lab h2{font-size:27px}.sb-lab h3{font-size:20px}}
@media(prefers-reduced-motion:reduce){.sb-lab *{scroll-behavior:auto!important;transition:none!important;animation:none!important}}