.soroban-module{--bg: #f6f4f1;--card: #ffffff;--ink: #241f1b;--muted: #6b6157;--line: #e4ded6;--rod: #c4bcb1;--bar: #4a3f35;--accent: #c2603a;--accent-soft: #ecccbd;--heaven: #2f6d8f;--heaven-soft: #bcd6e2;--hl: #e0902a;--lm-a: #c2603a;--lm-b: #2f6d8f;--dot: #241f1b;--focus: #1b74e4;max-width:900px;margin:0 auto;color:var(--ink);font:16px/1.55 system-ui,sans-serif}.dark .soroban-module,.soroban-module[data-theme=dark]{--bg: #17130f;--card: #211b16;--ink: #ece6df;--muted: #a99e92;--line: #352c24;--rod: #52453a;--bar: #b3a696;--accent: #e07a4f;--accent-soft: #5a3a2c;--heaven: #5aa6ca;--heaven-soft: #24404e;--hl: #f0b64d;--dot: #ece6df;--focus: #6ea8ff}.soroban-module[data-theme=light]{--bg: #f6f4f1;--card: #ffffff;--ink: #241f1b;--muted: #6b6157;--line: #e4ded6;--rod: #c4bcb1;--bar: #4a3f35;--accent: #c2603a;--accent-soft: #ecccbd;--heaven: #2f6d8f;--heaven-soft: #bcd6e2;--hl: #e0902a;--dot: #241f1b;--focus: #1b74e4}.soroban-module .tabs{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 20px;border-bottom:1px solid var(--line)}.soroban-module [role=tab]{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:0;background:none;color:var(--muted);font:inherit;font-weight:600;cursor:pointer;padding:10px 14px;min-height:48px;border-radius:10px 10px 0 0;border-bottom:2px solid transparent}.soroban-module [role=tab][aria-selected=true]{color:var(--accent);border-bottom-color:var(--accent)}.soroban-module [role=tab]:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.soroban-module .card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;margin-bottom:20px}.soroban-module .card h2{font-size:1.2rem;margin:0 0 4px}.soroban-module .card .hint{color:var(--muted);font-size:.92rem;margin:6px 0 16px}.soroban-module [hidden]{display:none}.soroban-module .soroban-svg,.soroban-module .lm-svg{width:100%;height:auto;display:block;touch-action:manipulation}.soroban-module .soroban-svg{max-height:420px}.soroban-module .bar{stroke:var(--bar);stroke-width:4;stroke-linecap:round}.soroban-module .rod{stroke:var(--rod);stroke-width:3}.soroban-module .bead{stroke:#00000047;stroke-width:1.5;outline:none;transition:cx .16s ease,cy .16s ease,fill .16s ease,opacity .16s ease}.soroban-module [role=button].bead{cursor:pointer}.soroban-module .bead.earth.on{fill:var(--accent)}.soroban-module .bead.earth.off{fill:var(--accent-soft);opacity:.72}.soroban-module .bead.heaven.on{fill:var(--heaven)}.soroban-module .bead.heaven.off{fill:var(--heaven-soft);opacity:.72}.soroban-module .bead.hl{stroke:var(--hl);stroke-width:4}.soroban-module .bead:focus-visible{stroke:var(--focus);stroke-width:3}@media (prefers-reduced-motion: reduce){.soroban-module .bead{transition:none}}.soroban-module .row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.soroban-module .spacer{flex:1}.soroban-module .value{font-size:2rem;font-weight:700;font-variant-numeric:tabular-nums}.soroban-module .controls{margin-top:14px}.soroban-module button,.soroban-module input{font:inherit;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px 14px}.soroban-module button{cursor:pointer;min-height:48px;min-width:48px}.soroban-module button:focus-visible,.soroban-module input:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.soroban-module button[aria-pressed=true]{background:var(--accent);color:#fff;border-color:var(--accent)}.soroban-module button.primary{background:var(--accent);color:#fff;border-color:var(--accent);font-weight:600}.soroban-module button:disabled{opacity:.45;cursor:not-allowed}.soroban-module .size-btn{min-width:48px}.soroban-module input[type=number]{width:8ch;text-align:right;font-variant-numeric:tabular-nums}.soroban-module label,.soroban-module .label{color:var(--muted);font-size:.92rem}.soroban-module .decomp{margin-top:14px;font-size:1.1rem;display:flex;flex-wrap:wrap;gap:6px;align-items:baseline}.soroban-module .pv{display:inline-flex;flex-direction:column;align-items:center;padding:4px 8px;border:1px solid var(--line);border-radius:8px}.soroban-module .pv b{font-size:1.3rem;font-variant-numeric:tabular-nums}.soroban-module .pv small{color:var(--muted)}.soroban-module .plus,.soroban-module .eq{color:var(--muted);font-weight:600;align-self:center}.soroban-module .eq{color:var(--ink);font-variant-numeric:tabular-nums}.soroban-module .caption{min-height:1.5em;font-size:1.05rem;margin:12px 0 4px}.soroban-module .result{color:var(--accent);font-weight:700;font-variant-numeric:tabular-nums}.soroban-module .error{color:#b3261e;font-weight:600}.dark .soroban-module .error,.soroban-module[data-theme=dark] .error{color:#ff8a80}.soroban-module .lm-a{stroke:var(--lm-a);stroke-width:2.5;stroke-linecap:round}.soroban-module .lm-b{stroke:var(--lm-b);stroke-width:2.5;stroke-linecap:round}.soroban-module .lm-dot{fill:var(--dot)}.soroban-module .lm-svg{max-height:360px;background:var(--bg);border-radius:10px}.soroban-module .product{font-size:1.6rem;font-weight:700;margin-top:10px;font-variant-numeric:tabular-nums}.soroban-module .lm-note{color:var(--muted);font-size:.9rem}.soroban-module .sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.soroban-module .hiw-grid{display:flex;flex-wrap:wrap;gap:16px;margin-top:12px}.soroban-module .hiw-example{flex:1 1 260px;min-width:0;margin:0;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px}.soroban-module .hiw-example h3{font-size:1.05rem;margin:0 0 10px}.soroban-module .hiw-section{margin:26px 0 0;padding-top:18px;border-top:1px solid var(--line)}.soroban-module .hiw-section>h3{font-size:1.1rem;margin:0 0 8px}.soroban-module .hiw-section>p{margin:0 0 12px}.soroban-module .hiw-method{margin-top:16px}.soroban-module .hiw-method>h4{font-size:1rem;margin:0 0 6px;color:var(--accent)}.soroban-module .hiw-bridge{background:var(--accent-soft);color:var(--ink);border-radius:10px;padding:10px 12px;font-size:.95rem;margin:4px 0 14px}.dark .soroban-module .hiw-bridge,.soroban-module[data-theme=dark] .hiw-bridge{color:var(--ink)}.soroban-module .hiw-stepper{flex:1 1 280px;min-width:0;margin:0;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px}.soroban-module .hiw-stepper-title{font-size:1.02rem;font-weight:700;margin:0 0 8px}.soroban-module .hiw-frame{min-height:40px}.soroban-module .hiw-controls{margin-top:12px;gap:8px}.soroban-module .hiw-controls button{min-height:44px;min-width:44px;padding:8px 12px}.soroban-module .hiw-speed{display:inline-flex;align-items:center;gap:6px}.soroban-module .hiw-speed select{min-height:44px;padding:8px 10px;font:inherit;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:10px}.soroban-module .hiw-speed select:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.soroban-module .lm-dot{transition:opacity .18s ease}.soroban-module .lm-dot-current{fill:var(--hl);stroke:var(--bar);stroke-width:1.5}@media (prefers-reduced-motion: reduce){.soroban-module .lm-dot{transition:none}}