@font-face{font-family:Geist;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/8a480f0b521d4e75-s.8e0177b5.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Geist;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/7178b3e590c64307-s.b97b3418.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Geist;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/caa3a2e1cccd8315-s.p.853070df.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Geist Fallback;src:local(Arial);ascent-override:95.94%;descent-override:28.16%;line-gap-override:0.0%;size-adjust:104.76%}.geist_a71539c9-module__T19VSG__className{font-family:Geist,Geist Fallback;font-style:normal}.geist_a71539c9-module__T19VSG__variable{--font-geist-sans:"Geist","Geist Fallback"}
@font-face{font-family:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/4fa387ec64143e14-s.c1fdd6c2.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/bbc41e54d2fcbd21-s.799d8ef8.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Geist Mono;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/797e433ab948586e-s.p.dbea232f.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Geist Mono Fallback;src:local(Arial);ascent-override:74.67%;descent-override:21.92%;line-gap-override:0.0%;size-adjust:134.59%}.geist_mono_8d43a2aa-module__8Li5zG__className{font-family:Geist Mono,Geist Mono Fallback;font-style:normal}.geist_mono_8d43a2aa-module__8Li5zG__variable{--font-geist-mono:"Geist Mono","Geist Mono Fallback"}
*{box-sizing:border-box}html,body{background:#f9fafb;justify-content:center;align-items:center;height:100%;margin:0;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,Helvetica,Arial;display:flex}.container{background:#fff;border-radius:16px;flex-direction:column;justify-content:center;align-items:center;max-width:900px;margin:auto;padding:24px;display:flex;box-shadow:0 4px 20px rgba(0,0,0,.1)}.toolbar{flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;margin-bottom:20px;display:flex}.status{opacity:.8;margin-left:auto;font-size:.9rem}.grid{border:3px solid #111;grid-template-rows:repeat(9,minmax(28px,1fr));grid-template-columns:repeat(9,minmax(28px,1fr));width:100%;max-width:440px;margin:0 auto;display:grid}.cell{border:1px solid #bbb;justify-content:center;align-items:center;font-size:max(14px,min(2.5vw,18px));font-weight:600;display:flex}.cell input{text-align:center;width:100%;height:100%;font-size:inherit;background:0 0;border:none;outline:none}.cell:nth-child(3n+1){border-left:3px solid #111}.cell:nth-child(9n){border-right:3px solid #111}.cell{border-top:1px solid #bbb;border-bottom:1px solid #bbb}.cell:nth-child(n+1):nth-child(-n+9),.cell:nth-child(n+28):nth-child(-n+36),.cell:nth-child(n+55):nth-child(-n+63){border-top:3px solid #111}.cell:nth-child(n+73):nth-child(-n+81){border-bottom:3px solid #111}.difficulty-label{text-align:center;margin:8px 0 16px;font-size:1rem}.toolbar{flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:16px;display:flex}button{cursor:pointer;color:#fff;background:#2563eb;border:1px solid #d1d5db;border-radius:8px;flex:90px;padding:8px 16px;font-weight:500;transition:background .2s,transform .1s}button:hover{background:#1d4ed8}button:active{transform:scale(.96)}button:disabled{cursor:not-allowed;background:#9ca3af}button.active{background:#16a34a;border-color:#15803d}button.active:hover{background:#15803d}