:root{--space-xs:8px;--space-sm:12px;--space-md:20px;--max-content-width:640px;--tile-min:120px;--tile-max:1fr;--text:#6b6375;--text-h:#08060d;--bg:#fff;--panel-bg:#f8f8f9;--panel-bg-hover:color-mix(in srgb, var(--panel-bg) 85%, black);--border:#e5e4e7;--accent:#aa3bff;--accent-hover:color-mix(in srgb, var(--accent) 85%, black);--danger:#b42318;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;--root-max-width:1126px;--content-max-width:640px;--space-lg:24px;--space-xl:32px;--gap-sm:8px;--gap-md:12px;--gap-lg:28px;--tile-min-height:64px;--tile-max-height:112px;--button-min-height:48px;font:18px/145% var(--sans);letter-spacing:0;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--panel-bg:#1f2028;--panel-bg-hover:color-mix(in srgb, var(--panel-bg) 85%, white);--border:#2e303a;--accent:#c084fc;--accent-hover:color-mix(in srgb, var(--accent) 85%, white);--danger:#f97066}}#root{text-align:center;box-sizing:border-box;flex-direction:column;width:1126px;max-width:100%;min-height:100svh;margin:0 auto;display:flex}body{margin:0}h1,h2{color:var(--text-h);font-weight:500}h2{margin:0 0 8px;font-size:24px;line-height:118%}@media (width<=1024px){h2{font-size:20px}}p{margin:0}.app-shell{min-height:100svh;padding:var(--space-xl) var(--space-md);box-sizing:border-box;place-items:center;display:grid}.options-trigger{top:var(--space-lg);right:var(--space-lg);z-index:10;width:var(--button-min-height);height:var(--button-min-height);border:1px solid var(--border);color:var(--text-h);background:var(--panel-bg);font:inherit;cursor:pointer;border-radius:8px;justify-content:center;align-items:center;padding:0;font-weight:700;display:inline-flex;position:fixed}.options-trigger:hover{background:var(--panel-bg-hover)}.credits{bottom:var(--space-lg);right:var(--space-lg);z-index:10;color:var(--text);pointer-events:none;opacity:.95;margin:0;font-size:.875rem;position:fixed}.game-view{width:min(100%, var(--content-max-width));gap:var(--gap-lg);flex-direction:column;display:flex}.number-grid{grid-template-columns:repeat(auto-fit, minmax(var(--tile-min-height), 1fr));gap:var(--gap-md);display:grid}.number-tile{border:1px solid var(--border);color:var(--text-h);background:var(--panel-bg);aspect-ratio:1;min-height:clamp(var(--tile-min-height), 18vw, var(--tile-max-height));overflow-wrap:anywhere;border-radius:8px;place-items:center;min-width:0;font-size:clamp(28px,6vw,44px);font-weight:700;line-height:1;display:grid}.actions{justify-content:center;gap:var(--gap-md);flex-wrap:wrap;display:flex}.primary-action,.secondary-action{min-height:var(--button-min-height);padding:0 var(--space-md);font:inherit;cursor:pointer;border:1px solid #0000;border-radius:8px;font-weight:700}.primary-action{color:#fff;background:var(--accent)}.primary-action:hover:not(:disabled){background:var(--accent-hover)}.secondary-action{color:var(--text-h);background:var(--panel-bg);border-color:var(--border)}.secondary-action:hover:not(:disabled){background:var(--panel-bg-hover)}.primary-action:disabled,.primary-action[aria-disabled=true],.secondary-action:disabled,.secondary-action[aria-disabled=true]{opacity:.7;cursor:not-allowed}.options-trigger:focus-visible,.primary-action:focus-visible,.secondary-action:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.solutions{border-top:1px solid var(--border);padding-top:var(--space-lg);text-align:left;max-height:clamp(160px,36vh,320px);overflow:auto}.solutions ul{gap:8px;margin:12px 0 0;padding:0;list-style:none;display:grid}.solutions li{color:var(--text-h);font-family:var(--mono);overflow-wrap:anywhere;word-break:break-word}@media (width<=520px){.game-view{gap:22px}.number-grid{gap:8px}.number-tile{min-height:76px;font-size:34px}.actions{flex-direction:column}.primary-action,.secondary-action{width:100%}.options-trigger{top:12px;right:12px}}.options-layer{z-index:20;justify-content:flex-end;display:flex;position:fixed;inset:0}.options-backdrop{cursor:pointer;background:#00000052;border:0;position:absolute;inset:0}.options-panel{z-index:1;width:min(100%,360px);min-height:100svh;padding:var(--space-lg);gap:var(--gap-lg);box-sizing:border-box;border-left:1px solid var(--border);color:var(--text);background:var(--bg);flex-direction:column;display:flex;position:relative;box-shadow:-16px 0 40px #00000029}.options-actions{justify-content:space-between;align-items:center;gap:var(--gap-md);display:flex}.settings-form{gap:var(--space-md);display:grid}.setting-field{gap:var(--space-xs);color:var(--text-h);text-align:left;font-weight:700;display:grid}.setting-field input{width:100%;min-height:var(--button-min-height);padding:0 var(--space-sm);box-sizing:border-box;border:1px solid var(--border);color:var(--text-h);background:var(--panel-bg);font:inherit;border-radius:8px}.settings-error{color:var(--danger);text-align:left}.options-actions{margin-top:auto}.icon-button:focus-visible,.setting-field input:focus-visible{outline:2px solid var(--accent);outline-offset:3px}@media (width<=520px){.options-panel{width:min(100%,320px);padding:20px}}