@import "https://fonts.googleapis.com/css2?family=Playfair+Display:wght@600;700&family=JetBrains+Mono:wght@400;600&display=swap";:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--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;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}#social .button-icon{filter:invert()brightness(2)}}#root{text-align:center;border-inline:1px solid var(--border);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{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px}@media (width<=1024px){h1{margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%}@media (width<=1024px){h2{font-size:20px}}p{margin:0}code,.counter{font-family:var(--mono);color:var(--text-h);border-radius:4px;display:inline-flex}code{background:var(--code-bg);padding:4px 8px;font-size:15px;line-height:135%}*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#12131f;--surface:#1c1d2e;--cell-bg:#f9f6ef;--cell-bg-hover:#fff8e8;--cell-bg-focus:#fff3cc;--cell-bg-given:#f0ede4;--grid-border:#e8c96b;--grid-inner:#c8c4b8;--grid-group:#2a2b3d;--text-given:#1a1826;--text-user:#4a6fa5;--accent:#d4a853;--accent-hover:#e8bc62;--btn-text:#e8e4d8;--btn-border:#e8c46b59;--btn-hover-bg:#d4a8531f;--title:#e8e4d8;--subtitle:#8b8a9e}html,body{background-color:var(--bg);min-height:100vh}.app-wrapper{background-color:var(--bg);background-image:radial-gradient(60% 50% at 50% 0,#d4a85312 0%,#0000 70%);flex-direction:column;justify-content:center;align-items:center;min-height:100vh;padding:2rem 1rem;font-family:JetBrains Mono,monospace;display:flex}.app-header{text-align:center;margin-bottom:2rem}.app-header h1{color:var(--title);letter-spacing:-.02em;font-family:Playfair Display,serif;font-size:clamp(2rem,6vw,3rem);font-weight:700;line-height:1.1}.app-header h1 span{color:var(--accent)}.app-header p{color:var(--subtitle);letter-spacing:.12em;text-transform:uppercase;margin-top:.5rem;font-size:.75rem}.sudoku-container{background:var(--surface);border:1px solid #e8c46b26;border-radius:16px;padding:1.75rem;box-shadow:0 0 0 1px #ffffff08,0 32px 64px #00000080}.sudoku,.sudoku *{box-sizing:border-box}.sudoku{border:3px solid var(--grid-group);border-radius:4px;grid-template-rows:repeat(9,52px);grid-template-columns:repeat(9,52px);width:fit-content;display:grid;overflow:hidden}.box{background-color:var(--cell-bg);border-right:1px solid var(--grid-inner);border-bottom:1px solid var(--grid-inner);justify-content:center;align-items:center;width:100%;height:100%;transition:background-color .12s;display:flex}.box:hover:not(:has(input:disabled)){background-color:var(--cell-bg-hover)}.box input{text-align:center;width:100%;height:100%;color:var(--text-user);cursor:pointer;caret-color:var(--accent);background:0 0;border:none;font-family:JetBrains Mono,monospace;font-size:19px;font-weight:400}.box input:focus{background-color:var(--cell-bg-focus);color:#2a4a7f;outline:none}.box input:disabled{color:var(--text-given);background-color:var(--cell-bg-given);-webkit-text-fill-color:var(--text-given);opacity:1;cursor:default;font-weight:600}.box input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.box input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.box input[type=number]{-moz-appearance:textfield}.box.third-col{border-right:2.5px solid var(--grid-group)}.box.third-row{border-bottom:2.5px solid var(--grid-group)}.sudoku>:nth-child(9n){border-right:none}.sudoku>:nth-child(n+73){border-bottom:none}.controls{justify-content:center;gap:10px;margin-top:1.5rem;display:flex}.controls button{letter-spacing:.1em;text-transform:uppercase;color:var(--btn-text);border:1px solid var(--btn-border);cursor:pointer;background:0 0;border-radius:6px;padding:10px 20px;font-family:JetBrains Mono,monospace;font-size:.7rem;font-weight:600;transition:background-color .15s,border-color .15s,color .15s,transform .1s}.controls button:hover{background-color:var(--btn-hover-bg);border-color:var(--accent);color:var(--accent-hover)}.controls button:active{transform:scale(.97)}.controls button.primary{background-color:var(--accent);border-color:var(--accent);color:#1a1826}.controls button.primary:hover{background-color:var(--accent-hover);border-color:var(--accent-hover);color:#1a1826}@media (width<=520px){.sudoku{grid-template-rows:repeat(9,36px);grid-template-columns:repeat(9,36px)}.box input{font-size:14px}.sudoku-container{padding:1.25rem}.controls{gap:6px}.controls button{padding:8px 14px;font-size:.65rem}}