.sd-page{padding-block:28px 64px}.sd-page>a{color:var(--brand-green);font-weight:700}.sd-heading{max-width:700px;margin:20px 0}.sd-heading h1{letter-spacing:-.04em;margin-bottom:8px;font-size:clamp(1.8rem,5vw,2.8rem)}.sd-heading p{color:var(--muted);line-height:1.5}.sd-game{gap:24px;max-width:960px;display:grid}.sd-game>*{min-width:0}.sd-grid{border:2px solid var(--ink);background:var(--ink);width:100%;max-width:460px;display:grid}.sd-cell{aspect-ratio:1;border:0 solid var(--brand-control-border);background:var(--brand-surface);min-width:0;color:var(--brand-green-dark);cursor:pointer;border-bottom-width:1px;border-right-width:1px;border-radius:0;padding:0;font-size:clamp(1.1rem,4.8vw,1.65rem);position:relative}.sd-cell:disabled{opacity:1;cursor:default}.sd-cell.is-given{color:var(--ink);background:var(--brand-green-light);font-weight:800}.sd-cell.is-peer{background:var(--interactive-soft)}.sd-cell.is-same{box-shadow:inset 0 -4px var(--selection-border)}.sd-cell.is-active{background:var(--selection-current);outline:3px solid var(--interactive-primary);outline-offset:-4px;z-index:1}.sd-cell.is-error{color:var(--brand-danger);border-style:dashed}.sd-cell.is-hinted>span:first-child{text-underline-offset:3px;text-decoration:underline}.sd-cell:focus-visible{outline:3px solid var(--selection-border);outline-offset:-3px;z-index:2}.sd-mark{font-size:.7rem;font-weight:800;line-height:1;position:absolute;top:0;right:2px}.sd-notes{color:var(--brand-muted);align-items:center;font-size:clamp(.55rem,2.1vw,.75rem);line-height:1;display:grid;position:absolute;inset:3px}.sd-selection,.sd-save{color:var(--muted);margin-top:12px;font-size:.85rem}.sd-progress{margin-top:12px;font-size:.9rem;display:block}.sd-progress progress{width:100%;max-width:460px;height:10px;accent-color:var(--brand-green);margin-top:6px;display:block}.sd-pad,.sd-controls{border:0;min-width:0;margin:0 0 16px;padding:0}.sd-pad legend,.sd-controls legend{margin-bottom:8px;font-weight:700}.sd-pad>div,.sd-controls{gap:8px;display:grid}.sd-controls{grid-template-columns:repeat(2,minmax(0,1fr))}.sd-pad button,.sd-controls button{border:1px solid var(--brand-control-border);background:var(--brand-surface);min-height:46px;color:var(--ink);font:inherit;cursor:pointer;border-radius:10px;padding:8px;font-weight:650}.sd-pad button{background:var(--brand-green-light);font-size:1.3rem}.sd-controls button[aria-pressed=true]{background:var(--brand-green);color:var(--brand-surface)}.sd-tools button:focus-visible,.sd-help summary:focus-visible{outline:3px solid var(--brand-green);outline-offset:3px}.sd-tools button:disabled{opacity:.55;cursor:wait}.sd-message{background:var(--brand-green-light);border-radius:12px;padding:12px;line-height:1.5}.sd-help{border-top:1px solid var(--line);grid-column:1/-1;padding-top:16px;line-height:1.65}.sd-help summary{cursor:pointer;font-weight:700}.sd-help p{margin-top:12px}.sd-archive{grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:20px;padding:0;list-style:none;display:grid}.sd-archive article{border:1px solid var(--line);border-top:5px solid var(--brand-green);background:var(--brand-surface);border-radius:20px;flex-direction:column;align-items:flex-start;gap:16px;height:100%;padding:28px;display:flex}.sd-archive h2{font-size:1.5rem}.sd-archive p{line-height:1.5}.sd-archive dl{gap:32px;margin-top:auto;display:flex}.sd-archive dt{color:var(--muted);font-size:.8rem}.sd-archive dd{margin:4px 0 0;font-weight:700}@media (min-width:760px){.sd-game{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);align-items:start;gap:32px}}@media (max-width:480px){.sd-page{padding-top:18px}.sd-heading{margin:14px 0}.sd-heading p{font-size:.88rem}.sd-game{gap:16px}}@media (prefers-reduced-motion:reduce){.sd-page *,.sd-page :before,.sd-page :after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.sd-page .button:not(:disabled):hover{background:var(--brand-green-dark);color:var(--brand-surface)}