: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)}}body{margin:0}#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}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%}.main-menu{text-align:center;max-width:800px;margin:0 auto}.hero-section h1{color:#2c3e50;margin-bottom:.5rem;font-size:2.5rem}.hero-section p{color:#7f8c8d;margin-bottom:2rem;font-size:1.1rem}.game-card h3{color:#2c3e50;margin-top:0}.game-card p{color:#7f8c8d;margin-bottom:1.5rem;font-size:.9rem}.play-btn{color:#fff;background-color:#3498db;border-radius:4px;padding:.5rem 1.5rem;font-weight:700;transition:background-color .2s;display:inline-block}.game-card:hover .play-btn{background-color:#2980b9}.sudoku-game-wrapper{text-align:center;max-width:650px;margin:0 auto;padding:1rem;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}.game-header{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#ffffffe6;border-radius:16px;justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding:1rem 1.5rem;display:flex;box-shadow:0 8px 25px #0000000d}.game-header h2{color:#2c3e50;margin:0;font-size:1.4rem}.new-game-btn{color:#fff;cursor:pointer;background-color:#ff7675;border:none;border-radius:12px;padding:.6rem 1.2rem;font-weight:700;transition:all .2s;box-shadow:0 4px 12px #ff76754d}.new-game-btn:hover{background-color:#d63031;transform:translateY(-2px)}.sudoku-board-container{box-sizing:border-box;background:#f0f3f6;border:4px solid #ffffffe6;border-radius:20px;width:420px;height:420px;margin:0 auto 1.5rem;position:relative;overflow:hidden;box-shadow:0 15px 35px #00000026}.reward-bg-image{object-fit:cover;z-index:1;width:100%;height:100%;transition:filter 1s ease-in-out,transform 1s ease-in-out;position:absolute;top:0;left:0}.reward-bg-image.blurred{filter:blur(16px)brightness(.95);transform:scale(1.08)}.reward-bg-image.revealed{filter:blur()brightness();transform:scale(1)}.sudoku-board{z-index:2;box-sizing:border-box;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#fff3;grid-template-rows:repeat(9,1fr);grid-template-columns:repeat(9,1fr);gap:3px;width:100%;height:100%;padding:6px;display:grid;position:relative}.sudoku-cell{cursor:pointer;-webkit-user-select:none;user-select:none;color:#2c3e50;border-radius:6px;justify-content:center;align-items:center;font-size:1.15rem;font-weight:700;transition:all .15s;display:flex;box-shadow:0 2px 4px #0000000a}.box-zone-0{background:#ffebebd9}.box-zone-1{background:#e6f5ffd9}.box-zone-2{background:#fff8dcd9}.box-zone-3{background:#f0fff0d9}.box-zone-4{background:#f5ebffd9}.box-zone-5{background:#fff0f5d9}.box-zone-6{background:#e6fffad9}.box-zone-7{background:#fff5e6d9}.box-zone-8{background:#f0f5f0d9}.sudoku-cell:hover:not(.initial){filter:brightness(.95);transform:scale(1.03)}.sudoku-cell.initial{color:#0984e3;cursor:not-allowed;font-weight:800}.sudoku-cell.user-entered{color:#00b894}.sudoku-cell.selected{color:#2d3436;transform:scale(.94);box-shadow:0 0 8px #55efc4cc;background-color:#55efc4!important}.numpad{flex-wrap:wrap;justify-content:center;gap:.5rem;margin-bottom:1.5rem;display:flex}.numpad button{cursor:pointer;color:#2c3e50;background:#fff;border:none;border-radius:10px;width:42px;height:42px;font-size:1.1rem;font-weight:700;transition:all .15s;box-shadow:0 4px 10px #0000000f}.numpad button:hover{color:#fff;background:#0984e3;transform:translateY(-2px)}.numpad .clear-btn{color:#fff;background:#ff7675;width:auto;padding:0 1.2rem}.numpad .clear-btn:hover{background:#d63031}.victory-banner{color:#fff;background-color:#00b894;border-radius:14px;padding:1rem;font-size:1.1rem;font-weight:700;animation:.5s bounceIn;box-shadow:0 6px 20px #00b89466}@keyframes bounceIn{0%{opacity:0;transform:scale(.8)}to{opacity:1;transform:scale(1)}}body{color:#333;background-color:#f4f6f9;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif}.top-navbar{z-index:1000;background-color:#fff;justify-content:space-between;align-items:center;padding:1rem 2rem;display:flex;position:sticky;top:0;box-shadow:0 2px 4px #0000001a}.nav-logo{color:#2c3e50;font-size:1.2rem;font-weight:700}.nav-links button{cursor:pointer;background:0 0;border:none;border-radius:4px;margin-left:1rem;padding:.5rem 1rem;font-size:1rem;transition:background .2s}.nav-links button:hover,.nav-links button.active{color:#fff;background-color:#3498db}.main-content{padding:2rem}.games-grid{justify-content:center;gap:2rem;margin-top:2rem;display:flex}.game-card{cursor:pointer;text-align:center;background:#fff;border-radius:8px;width:200px;padding:2rem;transition:transform .2s;box-shadow:0 4px 6px #0000000d}.game-card:hover{transform:translateY(-5px)}.game-card.disabled{opacity:.5;cursor:not-allowed}