@import "https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Work+Sans:wght@300;400;500;600&family=DM+Mono:wght@300;400;500&display=swap";:root{--graphite:#101418;--chalk:#efeae1;--malachite:#1f4038;--ochre:#c9922f;--ultramarine:#33478c;--stone:#7c7466;--paper:#fff;--surface-page:var(--chalk);--surface-card:var(--paper);--surface-inverse:var(--graphite);--surface-studio:var(--malachite);--surface-sunken:#e7e1d6;--text-primary:var(--graphite);--text-secondary:#26292f;--text-muted:var(--stone);--text-on-dark:var(--chalk);--text-on-dark-muted:#efeae1b8;--text-accent:var(--ochre);--text-link:var(--malachite);--text-link-hover:var(--graphite);--line-hairline:#1014181f;--line-rule:#10141833;--line-strong:var(--graphite);--line-on-dark:#efeae147;--figure-stroke:var(--graphite);--figure-stroke-on-dark:var(--chalk);--figure-construction:var(--ultramarine);--figure-field:#1014181f;--plate-ring:var(--graphite);--plate-ring-inner:#10141838;--family-curvilinear:var(--ochre);--family-orthogonal:var(--graphite);--family-stepped:var(--malachite);--family-angular:var(--ultramarine);--action-primary-bg:var(--ochre);--action-primary-fg:var(--graphite);--action-primary-bg-hover:#b9852a;--action-secondary-border:var(--line-strong);--action-secondary-fg:var(--graphite);--action-secondary-bg-hover:var(--surface-sunken);--action-disabled-fg:var(--stone);--action-disabled-border:var(--line-rule);--focus-ring:var(--ultramarine);--action-play-bg:var(--ultramarine);--action-play-fg:var(--chalk);--action-play-bg-hover:#2a3b75;--scrim:#101418b8;--surface-chrome:var(--malachite);--text-on-dark-faint:#efeae199;--state-given:var(--graphite);--state-entered:var(--ultramarine);--state-error:#9b2c1f;--state-solved:var(--ochre);--grid-cell-divider-color:#10141847;--state-locked:var(--surface-sunken);--state-candidate:var(--stone);--state-selected-bg:#33478c29;--state-related-bg:#33478c0f;--state-solved-bg:#c9922f29;--space-0:0;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:22px;--space-6:30px;--space-7:40px;--space-8:52px;--space-9:68px;--space-10:88px;--plate-xs:24px;--plate-sm:44px;--plate-md:68px;--plate-lg:120px;--plate-xl:196px;--plate-clearspace:.5;--figure-field-ratio:.65;--border-hairline:.5px;--border-rule:1px;--border-strong:1.5px;--grid-region-boundary:var(--border-strong);--grid-cell-divider:var(--border-hairline);--cell-min:36px;--cell-min-multi:40px;--cell-min-print:7mm;--cell-min-print-multi:8mm;--touch-min:44px;--radius-base:0;--shadow-card:none;--shadow-raised:none;--transition-fast:.12s linear;--transition-base:.2s linear;--easing:linear;--font-display:"Instrument Serif", Georgia, "Times New Roman", serif;--font-body:"Work Sans", system-ui, -apple-system, sans-serif;--font-mono:"DM Mono", ui-monospace, "SFMono-Regular", monospace;--text-display-3xl:82px;--text-display-2xl:58px;--text-display-xl:44px;--text-display-lg:32px;--text-display-md:26px;--text-display-sm:20px;--leading-display:1.02;--leading-display-loose:1.2;--tracking-display:-.01em;--text-body-lg:17px;--text-body-md:16px;--text-body-sm:13px;--text-body-xs:12px;--leading-body:1.62;--leading-body-tight:1.5;--weight-light:300;--weight-regular:400;--weight-medium:500;--weight-semibold:600;--text-mono-lg:12px;--text-mono-md:10px;--text-mono-sm:9px;--text-mono-xs:8px;--tracking-mono:.16em;--tracking-mono-wide:.22em;--tracking-descriptor:.4em;--leading-mono:1.7}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}html,body{background:var(--surface-page);color:var(--text-primary);overscroll-behavior-y:contain}body{font-family:var(--font-body);font-size:var(--text-body-md);-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none;line-height:1.5}button,input{font:inherit;color:inherit}button{box-shadow:none;cursor:pointer;background:0 0;border:none;border-radius:0}.grid-cell{transition:background-color .22s}