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var(--color-border);align-items:center;gap:12px;min-height:60px;padding:14px 22px;display:flex}.hw-stage-head h2{color:var(--color-text);font-family:var(--font-heading);margin:0;font-size:1.2rem;font-weight:700;line-height:1.25}.hw-step{border:1.5px solid var(--color-redpen);width:30px;height:30px;color:var(--color-redpen);font-variant-numeric:tabular-nums;border-radius:50%;flex:none;place-items:center;font-size:.9rem;font-weight:700;line-height:1;display:inline-grid}.hw-stage-body{grid-template-columns:minmax(0,340px) minmax(0,1fr);align-items:stretch;display:grid}.hw-stage-copy{border-right:1px solid var(--color-border);min-width:0;padding:20px 24px 22px 46px;position:relative}.hw-stage-copy:before{content:"";background:color-mix(in srgb, var(--color-redpen) 55%, transparent);width:1.5px;position:absolute;top:20px;bottom:22px;left:22px}.hw-points{gap:var(--space-2);color:var(--color-text-secondary);margin:0;padding-left:1.1rem;font-size:.95rem;line-height:1.55;list-style:outside;display:grid}.hw-stage-link{margin:var(--space-4) 0 0;font-size:.95rem}.hw-stage-exhibit{background:var(--color-surface-2);min-width:0;padding:22px}.hw-caption{margin:var(--space-3) 0 0}.hw-frame-note{color:var(--color-text-secondary);margin:0;font-size:.9rem}.open-exhibit-locked{gap:var(--space-3);justify-items:start;display:grid}.open-exhibit-locked h3{margin:0;font-size:1.1rem}.open-exhibit-locked ul{color:var(--color-text-secondary);margin:0;padding-left:1.1rem;line-height:1.55}.hw-stage--wide .hw-stage-body{grid-template-columns:minmax(0,1fr)}.hw-stage--wide .hw-stage-copy{border-right:0;border-bottom:1px solid var(--color-border)}.hw-stage--wide .hw-points{gap:var(--space-2) clamp(28px, 4vw, 56px);grid-template-columns:repeat(2,minmax(0,1fr))}@media 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[inert]{pointer-events:none;-webkit-user-select:none;user-select:none}.exhibit-tour .tour-layer{pointer-events:none}.exhibit-tour .tour-sheet{clip-path:inset(var(--exhibit-top,0px) var(--exhibit-right,0px) var(--exhibit-bottom,0px) var(--exhibit-left,0px))}.exhibit-tour .tour-card{pointer-events:auto}.exhibit-tour[data-outside] .tour-card{visibility:hidden}.exhibit-tour .tour-actions .btn-ghost{display:none}.exhibit-controls{align-items:center;gap:var(--space-2);margin-top:var(--space-2);padding:var(--space-2) 0;border-top:1px solid var(--color-border-light);border-bottom:1px solid var(--color-border-light);flex-wrap:wrap;font-size:.82rem;display:flex}.exhibit-controls button{border:1px solid var(--color-border);border-radius:var(--radius-xs);background:var(--color-surface);color:var(--color-text);font:inherit;cursor:pointer;padding:4px 10px}.exhibit-controls button:disabled{opacity:.45;cursor:default}.exhibit-controls button:hover:not(:disabled){border-color:var(--color-primary)}.exhibit-controls .exhibit-step{color:var(--color-text-muted);font-variant-numeric:tabular-nums;margin-left:auto}.exhibit-controls .exhibit-note{width:100%;color:var(--color-text-muted);margin:0}.exhibit-done{min-height:240px;padding:var(--space-4);background:color-mix(in srgb, var(--color-surface) 88%, transparent);text-align:center;z-index:2;place-items:center;display:grid;position:absolute;inset:0 0 auto}.exhibit-done div{padding:var(--space-4) var(--space-6);border:1px solid var(--color-border);border-radius:var(--radius-xs);background:var(--color-surface)}.exhibit-done strong{margin-bottom:var(--space-2);font-size:1.05rem;display:block}.exhibit-done a{font-family:var(--font-mono);font-size:.8rem}.exhibit-static{gap:var(--space-4);display:grid}.exhibit-static--two{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.exhibit-static 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span{color:var(--color-text-muted);font-variant-numeric:tabular-nums;margin-right:10px}.open-rule>p{margin:0 0 var(--space-3);color:var(--color-text-secondary);font-size:.95rem;line-height:1.6}.open-rule-points{gap:var(--space-1);margin:0 0 var(--space-3);color:var(--color-text-secondary);padding-left:1.1rem;font-size:.95rem;line-height:1.6;display:grid}ul.open-example-note{gap:2px;padding-left:1.1rem;display:grid}.open-formula{margin:var(--space-3) 0;padding:var(--space-2) 0;border-top:1px solid var(--color-border-light);border-bottom:1px solid var(--color-border-light);color:var(--color-text);font-family:var(--font-mono);white-space:nowrap;font-size:.8rem;line-height:1.6;overflow-x:auto}.open-example{margin-top:var(--space-3)}.open-example-head{margin:0 0 var(--space-2);color:var(--color-text-muted);letter-spacing:0;font-size:.8rem}.open-example .table{font-size:.86rem}.open-example .table td:first-child{font-family:var(--font-mono);font-variant-numeric:tabular-nums;white-space:nowrap}.open-example .table td:last-child{font-family:var(--font-mono);font-variant-numeric:tabular-nums;text-align:right;white-space:nowrap}.open-example .table th:last-child{text-align:right}.open-example .table td small{color:var(--color-text-muted);font-family:var(--font-body);white-space:normal;font-size:.78rem;display:block}@media (max-width:767px){.open-example .table,.open-anno .table,.rs-slip .table{min-width:0}.open-formula{white-space:normal;overflow-wrap:anywhere}}.open-example-note{margin:var(--space-2) 0 0;color:var(--color-text-secondary);font-size:.86rem;line-height:1.55}.open-example-fail{color:var(--color-text-secondary);font-size:.88rem}.open-booklet-foot{margin:var(--space-4) 0 0;padding-top:var(--space-3);border-top:1px solid var(--color-border);color:var(--color-text-muted);font-size:.8rem}@media (max-width:1000px){.open-booklet{grid-template-columns:180px minmax(0,1fr)}}@media (max-width:900px){.open-booklet{grid-template-columns:minmax(0,1fr)}.open-contents{border:0;flex-wrap:wrap;gap:4px 14px;display:flex;position:static}.open-contents li{border:0}.open-contents a{gap:5px;padding:2px 0;display:inline-flex}}.open-calc{margin:var(--space-4) 0 0;padding:var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-xs);background:var(--color-surface)}.open-calc-head{margin:0 0 var(--space-3);font-size:1rem;font-weight:600}.open-calc-grid{gap:var(--space-3);margin-bottom:var(--space-3);grid-template-columns:repeat(auto-fit,minmax(150px,1fr));display:grid}.open-calc-grid .form-label{margin-bottom:4px;font-size:.78rem}.open-calc-grid .form-input,.open-calc-grid .form-select{width:100%}.open-calc-types{margin-bottom:var(--space-3);flex-wrap:wrap;gap:6px;display:flex}.open-calc-types button{border:1px solid 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button[aria-pressed=true]{background:var(--color-primary);border-color:var(--color-primary);color:var(--color-surface)}.open-bubbles-row--key button[aria-pressed=true]{background:var(--color-surface);border:2px solid var(--color-redpen);color:var(--color-redpen)}.open-calc-out{margin:var(--space-3) 0 0;padding:var(--space-2) var(--space-3);border:1px solid var(--color-border-light);border-radius:var(--radius-xs);background:var(--color-surface-2);color:var(--color-text);font-family:var(--font-mono);font-variant-numeric:tabular-nums;min-height:2.4em;font-size:.84rem}.open-calc-out[data-state=correct]{border-color:var(--color-success)}.open-calc-out[data-state=wrong]{border-color:var(--color-danger)}.open-calc-out[data-state=partial]{border-color:var(--color-warning)}.open-calc-out[data-state=blank]{border-color:var(--color-border)}.open-calc-foot{margin:var(--space-2) 0 0;color:var(--color-text-muted);font-size:.8rem}.open-calc .open-ruled{margin-top:var(--space-3)}.open-calc .open-ruled li{padding:6px 0 6px .3rem;font-size:.84rem}.open-pass-plans.pass-plans{gap:0 var(--space-6);margin-bottom:var(--space-3);border-top:0;grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.open-pass-plans .pass-plan{border-top:1px solid var(--color-border);padding:var(--space-4) 0;grid-template:"name price""note note"1fr"btn btn"/minmax(0,1fr) auto}.open-pass-plans .pass-plan>div:first-child{grid-area:name}.open-pass-plans .pass-plan-price{grid-area:price;font-size:1.5rem}.open-pass-plans .pass-plan-note{grid-area:note;margin:0}.open-pass-plans .pass-plan .btn{margin-top:var(--space-2);grid-area:btn;justify-self:start}.open-pass-plans .pass-plan-name{font-size:1.05rem}.open-pass-hint{margin:0 0 var(--space-2);color:var(--color-text-secondary);font-size:.86rem}.open-pass-foot{padding-top:var(--space-3);border-top:1px solid var(--color-border-light);color:var(--color-text-muted);margin:0;font-size:.84rem;line-height:1.5}.open-pass-empty{margin:0 0 var(--space-3);padding:var(--space-3) var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-xs);background:var(--color-surface);color:var(--color-text-secondary);font-size:.92rem}@media (max-width:719px){.open-pass-plans.pass-plans{grid-template-columns:minmax(0,1fr);gap:0}.open-pass-plans .pass-plan .btn{justify-self:stretch;width:100%}}dl.open-cover{gap:0 var(--space-4);border-top:1px solid var(--color-border);grid-template-columns:9rem minmax(0,1fr);max-width:76ch;margin:0;display:grid}dl.open-cover dt{padding:var(--space-3) 0;border-bottom:1px solid var(--color-border-light);color:var(--color-text);font-size:.9rem;font-weight:600}dl.open-cover dd{padding:var(--space-3) 0;border-bottom:1px solid var(--color-border-light);color:var(--color-text-secondary);margin:0;font-size:.92rem;line-height:1.55}dl.open-cover dd .open-mono{color:var(--color-text)}@media (max-width:560px){dl.open-cover{grid-template-columns:minmax(0,1fr)}dl.open-cover dt{border-bottom:0;padding-bottom:2px}dl.open-cover dd{padding-top:0}}.open-faq{border-top:1px solid var(--color-border);max-width:76ch}.open-faq details{border-bottom:1px solid var(--color-border-light)}.open-faq summary{align-items:center;gap:var(--space-3);padding:var(--space-3) 0;cursor:pointer;color:var(--color-text);font-size:.95rem;font-weight:600;list-style:none;display:flex}.open-faq summary::-webkit-details-marker{display:none}.open-faq summary:before{content:"+";content:"+" / "";width:1.2rem;color:var(--color-text-secondary);flex:none;font-weight:700}.open-faq details[open] summary:before{content:"−";content:"−" / ""}.open-faq details p{margin:0 0 var(--space-3) 1.2rem;padding-left:var(--space-3);color:var(--color-text-secondary);font-size:.92rem;line-height:1.55}.open-faq details ul{margin:0 0 var(--space-3) 1.2rem;padding-left:calc(var(--space-3) + 1rem);color:var(--color-text-secondary);gap:2px;font-size:.92rem;line-height:1.55;display:grid}.open-faq summary{min-height:44px}dl.open-cover dd ul{gap:2px;margin:0;padding-left:1.1rem;display:grid}.open-invite .open-ruled strong{color:var(--color-text)}.open-invite-cta{margin:var(--space-4) 0 0;font-weight:650}@media (prefers-reduced-motion:reduce){.open-room *{transition:none!important}}