/*! tailwindcss v4.2.1 | MIT License | https://tailwindcss.com */@layer theme{:host,:root{--font-sans:ui-sans-serif,system-ui,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";--font-mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;--spacing:.25rem;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4,0,.2,1);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,::backdrop,:after,:before{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}:host,html{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif,system-ui,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,pre,samp{font-family:var(--default-mono-font-family,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}menu,ol,ul{list-style:none}audio,canvas,embed,iframe,img,object,svg,video{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,optgroup,select,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab,red,red)){::placeholder{color:color-mix(in oklab,currentcolor 50%,transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit,::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-millisecond-field,::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.start{inset-inline-start:var(--spacing)}.grid{display:grid}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}}:root{--ink:#f4f0e8;--muted:#a7adb7;--line:#39414d;--night:#10151c;--panel:#171d26;--paper:#f0eee8;--blue:#7bb7ff;--coral:#ff826f}*{box-sizing:border-box}html{background:var(--night);color-scheme:dark}body{background:radial-gradient(circle at 78% 4%,#25364a 0,transparent 32rem),var(--night);color:var(--ink);margin:0;font-family:Arial,Helvetica,sans-serif}button,input{font:inherit}a,button{-webkit-tap-highlight-color:transparent}a{text-decoration:none}a,button{color:inherit}.site-shell{width:min(1500px,100% - 32px);margin:0 auto}.site-nav{border-bottom:1px solid var(--line);grid-template-columns:auto 1fr auto;align-items:center;gap:20px;min-height:88px;display:grid}.monogram{letter-spacing:.08em;border:1px solid #707782;place-items:center;width:44px;height:44px;font-size:13px;font-weight:800;display:grid}.nav-title{flex-direction:column;gap:4px;display:flex}.nav-title strong{font-size:14px}.nav-title span,.site-nav nav a{color:var(--muted);letter-spacing:.12em;text-transform:uppercase;font-size:11px}.site-nav nav{gap:28px;display:flex}.site-nav nav a:hover{color:var(--blue)}.hero{border-bottom:1px solid var(--line);grid-template-columns:minmax(0,1.7fr) minmax(260px,.3fr);align-items:end;gap:40px;min-height:455px;padding:62px 0 50px;display:grid}.eyebrow{color:var(--muted);letter-spacing:.2em;margin:0 0 26px;font-size:11px;font-weight:800}.eyebrow,.hero h1{text-transform:uppercase}.hero h1{letter-spacing:-.09em;margin:0;font-size:clamp(84px,14vw,205px);line-height:.72}.hero h1 em,.hero h1 span{display:block}.hero h1 em{color:#0000;-webkit-text-stroke:2px var(--ink);letter-spacing:-.055em;font-size:.65em;font-style:normal}.hero-copy{color:#c2c7d0;max-width:390px;margin:0 0 12px;font-size:clamp(18px,2vw,25px);line-height:1.45}.game-layout{border:1px solid var(--line);border-top:0;grid-template-columns:minmax(260px,.36fr) minmax(0,.64fr);display:grid}.control-panel{border-right:1px solid var(--line);background:#10151ccc;padding:32px}.mode-switch{border:1px solid var(--line);grid-template-columns:1fr 1fr;display:grid}.completion button,.difficulty button,.game-actions button,.mode-switch button,.number-pad button{cursor:pointer;background:0 0;border:0}.mode-switch button{color:var(--muted);text-transform:uppercase;letter-spacing:.14em;padding:14px;font-size:11px;font-weight:800}.mode-switch button+button{border-left:1px solid var(--line)}.mode-switch button.active{background:var(--blue);color:#10151c}.puzzle-meta{border-bottom:1px solid var(--line);flex-direction:column;gap:8px;padding:28px 0;display:flex}.puzzle-meta span{color:var(--muted);text-transform:uppercase;letter-spacing:.1em;font-size:12px}.puzzle-meta strong{text-transform:capitalize;font-size:22px}.difficulty{border-bottom:1px solid var(--line);grid-template-columns:repeat(3,1fr);gap:6px;padding:22px 0;display:grid}.difficulty button{border:1px solid var(--line);color:var(--muted);text-transform:uppercase;padding:10px 4px;font-size:9px;font-weight:800}.difficulty button[aria-pressed=true]{border-color:var(--blue);color:var(--blue)}.difficulty .new-puzzle{color:var(--ink);grid-column:1/-1}.settings-list{border-bottom:1px solid var(--line);padding:20px 0}.setting-row{justify-content:space-between;align-items:center;gap:20px;padding:11px 0;display:flex}.setting-row span{flex-direction:column;gap:4px;display:flex}.setting-row strong{font-size:13px}.setting-row small{color:var(--muted);font-size:11px}.setting-row input{width:36px;height:19px;accent-color:var(--blue)}.stats-row{border-bottom:1px solid var(--line);grid-template-columns:repeat(3,1fr);margin:0;padding:24px 0;display:grid}.stats-row div{flex-direction:column-reverse;gap:7px;display:flex}.stats-row dt{color:var(--muted);text-transform:uppercase;letter-spacing:.1em;font-size:9px}.stats-row dd{margin:0;font-size:25px;font-weight:800}.rule-note{padding-top:26px}.rule-note span{color:var(--blue);letter-spacing:.15em;text-transform:uppercase;font-size:10px;font-weight:800}.rule-note p{color:var(--muted);font-size:12px;line-height:1.6}.board-panel{background:linear-gradient(135deg,#222d3bc7,#0f141bf7);flex-direction:column;align-items:center;min-width:0;padding:28px clamp(18px,5vw,72px) 38px;display:flex;position:relative}.board-toolbar{border-bottom:1px solid var(--line);justify-content:center;align-self:stretch;gap:clamp(28px,7vw,90px);margin-bottom:24px;padding-bottom:20px;display:flex}.board-toolbar div{flex-direction:column;gap:5px;display:flex}.board-toolbar span{color:var(--muted);letter-spacing:.14em;text-transform:uppercase;font-size:9px;font-weight:800}.board-toolbar strong{font-family:Courier New,monospace;font-size:17px}.sudoku-board{aspect-ratio:1;background:#0b1016;border:1px solid #6a7480;grid-template-columns:repeat(6,1fr);width:min(100%,570px);padding:5px;display:grid;box-shadow:0 34px 80px #00000057}.cell{background:var(--paper);color:#18202a;cursor:pointer;border-style:solid;border-color:#27313d;place-items:center;min-width:0;min-height:0;padding:0;display:grid;position:relative}.cell.shade{background:#dbe6ec}.cell.peer{filter:brightness(.92)}.cell.same{background:#bed9f5}.cell.selected{box-shadow:inset 0 0 0 5px var(--coral);z-index:3}.cell:focus-visible{outline:4px solid var(--blue);outline-offset:-5px;z-index:4}.cell strong{font:800 clamp(25px,5vw,50px)/1 Arial,sans-serif}.cell.entered strong{color:#246eb4}.cell.conflict{background-image:repeating-linear-gradient(135deg,#da344085 0 8px,#0000 8px 16px)}.cell.hinted:after{content:"";border:4px solid var(--coral);border-radius:50%;animation:hintPulse 1s ease-in-out infinite alternate;position:absolute;inset:10%}@keyframes hintPulse{to{opacity:.35;transform:scale(.86)}}.notes{grid-template-rows:repeat(2,1fr);grid-template-columns:repeat(3,1fr);width:100%;height:100%;padding:7%;display:grid}.notes i{color:#526376;place-items:center;font:700 clamp(8px,1.4vw,14px)/1 Courier New,monospace;display:grid}.number-pad{grid-template-columns:repeat(6,1fr);gap:6px;width:min(100%,570px);margin-top:22px;display:grid}.number-pad button{min-height:48px;color:var(--ink);border:1px solid #566170;font-size:20px;font-weight:800}.number-pad button:focus-visible,.number-pad button:hover{border-color:var(--blue);color:var(--blue)}.game-actions{flex-wrap:wrap;justify-content:center;gap:8px;margin-top:14px;display:flex}.game-actions button{border:1px solid var(--line);color:var(--muted);text-transform:uppercase;letter-spacing:.1em;padding:10px 14px;font-size:9px;font-weight:800}.game-actions button.active{border-color:var(--blue);color:var(--blue)}.game-actions button:focus-visible,.game-actions button:hover:not(:disabled){color:var(--blue);border-color:var(--blue)}.game-actions button:disabled{opacity:.3;cursor:default}.status-message{min-height:18px;color:var(--muted);text-align:center;margin:17px 0 0;font-size:11px}.status-message.error{color:#ff8790}.completion{z-index:5;background:#0d1218fa;border:1px solid #68717e;padding:25px;position:absolute;inset:auto clamp(14px,7%,70px) 26px;box-shadow:0 20px 55px #0000008c}.completion .eyebrow{color:var(--blue);margin-bottom:10px}.completion h2{letter-spacing:-.04em;margin:0;font-size:clamp(26px,4vw,45px)}.completion p:not(.eyebrow){color:var(--muted)}.completion div{gap:8px;display:flex}.completion button{border:1px solid var(--blue);color:var(--blue);text-transform:uppercase;padding:11px 15px;font-size:10px;font-weight:800}.rules{border-bottom:1px solid var(--line);grid-template-columns:.45fr .55fr;gap:40px;padding:100px 0;display:grid}.rules>.eyebrow{grid-column:1/-1;margin-bottom:0}.rules h2{letter-spacing:-.055em;margin:0;font-size:clamp(44px,6vw,83px);line-height:.95}.rules ol{margin:0;padding:0;list-style:none}.rules li{border-top:1px solid var(--line);grid-template-columns:48px 1fr;gap:18px;padding:22px 0;display:grid}.rules li:last-child{border-bottom:1px solid var(--line)}.rules li>span{color:var(--blue);font:700 11px Courier New,monospace}.rules li p{color:var(--muted);flex-direction:column;gap:7px;margin:0;line-height:1.5;display:flex}.rules li strong{color:var(--ink);font-size:15px}footer{min-height:100px;color:var(--muted);letter-spacing:.13em;text-transform:uppercase;justify-content:space-between;align-items:center;gap:20px;font-size:10px;display:flex}.toast{z-index:20;border:1px solid var(--blue);max-width:min(360px,100vw - 40px);color:var(--ink);cursor:pointer;background:#10151c;padding:15px 18px;position:fixed;bottom:20px;right:20px;box-shadow:0 18px 50px #00000073}@media (max-width:900px){.site-nav{grid-template-columns:auto 1fr}.site-nav nav{grid-column:1/-1;padding-bottom:18px}.hero{grid-template-columns:1fr;align-items:start;min-height:390px}.hero-copy{margin-top:auto}.game-layout{grid-template-columns:1fr}.control-panel{border-right:0;border-bottom:1px solid var(--line)}.rules{grid-template-columns:1fr}}@media (max-width:560px){.site-shell{width:min(100% - 20px,1500px)}.nav-title span{display:none}.site-nav nav{justify-content:space-between;gap:12px}.hero{min-height:330px;padding-top:48px}.hero h1{font-size:clamp(68px,22vw,98px)}.control-panel{padding:22px}.board-panel{padding-inline:8px}.board-toolbar{gap:24px}.sudoku-board{padding:3px}.number-pad{gap:4px}.rules{padding:72px 0}footer{flex-direction:column;justify-content:center;align-items:flex-start;line-height:1.5}}@media (prefers-reduced-motion:reduce){*,:after,:before{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}