@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Short+Stack&family=JetBrains+Mono:wght@500;700&display=swap");:root{--bg-paper:#FDF9F3;--bg-paper-alt:#F7F1E7;--ink-primary:#191919;--ink-player:#36322E;--ink-secondary:#665F57;--ink-muted:#9E988F;--border-subtle:#D9D2C8;--border-strong:#191919;--highlight-cell:#F3E7A5;--highlight-peer:#F6F0E6;--highlight-match:#ECE3D4;--error-ink:#C8564B;--error-bg:#FDF0EE;--success-ink:#3D7A5A;--font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--font-doodle:"Short Stack",cursive,sans-serif;--font-mono:"JetBrains Mono",monospace;--doodle-border-outer:255px 15px 225px 15px/15px 225px 15px 255px;--doodle-border-sm:255px 10px 225px 10px/10px 225px 10px 255px;--doodle-border-tag:255px 6px 225px 6px/6px 225px 6px 255px;--doodle-btn-var1:255px 12px 225px 12px/12px 225px 12px 255px;--doodle-btn-var2:12px 255px 14px 225px/225px 14px 255px 12px;--doodle-btn-var3:225px 15px 255px 10px/10px 255px 15px 225px;--board-max-size:480px}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}body,html{min-height:100%;height:100%;background-color:var(--bg-paper);color:var(--ink-primary);font-family:var(--font-sans);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{display:flex;flex-direction:column;background-image:radial-gradient(#E8E1D5 .75px,transparent 0);background-size:24px 24px}.font-doodle{font-family:var(--font-doodle)}.font-mono{font-family:var(--font-mono)}.doodle-border{border:1.5px solid var(--ink-primary);border-radius:var(--doodle-border-outer)}.doodle-border-subtle{border:1px solid var(--border-subtle);border-radius:var(--doodle-border-sm)}.doodle-button{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:transparent;color:var(--ink-primary);border:1.5px solid var(--ink-primary);border-radius:var(--doodle-btn-var1);padding:8px 16px;font-family:var(--font-sans);font-size:14px;font-weight:500;cursor:pointer;touch-action:manipulation;-webkit-user-select:none;-moz-user-select:none;user-select:none;transition:transform .1s ease,background-color .12s ease,border-color .12s ease}.doodle-button:hover{background-color:var(--bg-paper-alt)}.doodle-button:active{transform:scale(.97) translateY(1px)}.doodle-button.active{background-color:var(--ink-primary);color:var(--bg-paper)}.doodle-button-sm{padding:4px 10px;font-size:13px;border-radius:var(--doodle-border-tag)}.doodle-button-ghost{border-color:transparent;color:var(--ink-secondary)}.doodle-button-ghost:hover{border-color:var(--border-subtle);color:var(--ink-primary)}.numpad-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;height:48px;width:100%;max-width:46px;background-color:var(--bg-paper);border:1.5px solid var(--ink-primary);font-family:var(--font-doodle);font-size:clamp(20px,4.5vw,24px);font-weight:600;color:var(--ink-primary);cursor:pointer;touch-action:manipulation;-webkit-user-select:none;-moz-user-select:none;user-select:none;transition:transform .08s ease,background-color .1s ease,opacity .15s ease;position:relative}.numpad-btn-var1{border-radius:var(--doodle-btn-var1)}.numpad-btn-var2{border-radius:var(--doodle-btn-var2)}.numpad-btn-var3{border-radius:var(--doodle-btn-var3)}.numpad-btn:hover{background-color:var(--bg-paper-alt)}.numpad-btn:active{transform:scale(.94) translateY(1px)}.numpad-btn.completed{opacity:.28;border-color:var(--border-subtle);text-decoration:line-through}.numpad-btn .count-badge{position:absolute;bottom:2px;right:4px;font-size:10px;font-family:var(--font-doodle);color:var(--ink-muted);line-height:1}.doodle-underline{position:relative;display:inline-block}.doodle-underline:after{content:"";position:absolute;left:-2px;right:-2px;bottom:-3px;height:2px;background:currentColor;border-radius:255px 10px 225px 10px/10px 225px 10px 255px;opacity:.85}.sudoku-container{width:100%;max-width:var(--board-max-size);aspect-ratio:1/1;margin:0 auto;-webkit-user-select:none;-moz-user-select:none;user-select:none;position:relative;border:2px solid var(--ink-primary);border-radius:var(--doodle-border-outer);overflow:hidden;background-color:var(--bg-paper);box-shadow:2px 3px 0 rgba(25,25,25,.04)}.sudoku-grid{display:grid;grid-template-columns:repeat(9,1fr);grid-template-rows:repeat(9,1fr);width:100%;height:100%;position:relative;z-index:1}.sudoku-dividers-overlay{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:5}.sudoku-cell{position:relative;display:flex;align-items:center;justify-content:center;border-right:.75px solid var(--border-subtle);border-bottom:.75px solid var(--border-subtle);font-family:var(--font-doodle);cursor:pointer;touch-action:manipulation;-webkit-user-select:none;-moz-user-select:none;user-select:none;transition:background-color .08s ease;overflow:hidden}.sudoku-cell.edge-right{border-right:none}.sudoku-cell.edge-bottom{border-bottom:none}.sudoku-cell.is-given{color:var(--ink-primary);font-weight:700;font-size:clamp(21px,5.2vw,28px)}.sudoku-cell.is-user{color:var(--ink-player);font-weight:400;font-size:clamp(20px,5vw,27px)}.sudoku-cell.peer-highlight{background-color:var(--highlight-peer)}.sudoku-cell.match-highlight{background-color:var(--highlight-match)}.sudoku-cell.match-highlight span{text-decoration:underline;-webkit-text-decoration-color:var(--ink-secondary);text-decoration-color:var(--ink-secondary);text-underline-offset:3px}.sudoku-cell.selected{background-color:var(--highlight-cell)!important;border-radius:255px 3px 225px 3px/3px 225px 3px 255px}.sudoku-cell.is-mistake{color:var(--error-ink)!important;background-color:var(--error-bg)}.sudoku-cell.is-mistake span{position:relative;display:inline-block}.sudoku-cell.is-mistake span:after{content:"";position:absolute;left:-3px;right:-3px;bottom:0;height:2px;background-color:var(--error-ink);border-radius:255px 4px 225px 4px/4px 225px 4px 255px}.cell-notes-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);width:100%;height:100%;padding:1px}.cell-note{display:flex;align-items:center;justify-content:center;font-size:clamp(9px,2vw,12px);font-family:var(--font-doodle);font-weight:400;color:var(--ink-secondary);line-height:1}.notebook-rule{height:1px;background-color:var(--border-subtle);width:100%;margin:16px 0}.doodle-input{width:100%;background:var(--bg-paper);border:1.5px solid var(--ink-primary);border-radius:var(--doodle-btn-var1);padding:10px 14px;font-size:15px;color:var(--ink-primary);font-family:var(--font-sans);outline:none;transition:border-color .15s ease,box-shadow .15s ease}.doodle-input:focus{border-color:var(--ink-primary);box-shadow:0 0 0 2px rgba(25,25,25,.08)}@keyframes gentlePop{0%{transform:scale(.92)}60%{transform:scale(1.04)}to{transform:scale(1)}}.animate-pop{animation:gentlePop .15s ease-out forwards}@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}