:root{font-family:'DM Sans',sans-serif;color:#1d2a3b;background:#f4f7fc;font-synthesis:none;text-rendering:optimizeLegibility;--blue:#3974e8;--blue-dark:#245cca;--ink:#1d2a3b;--muted:#8592a5;--line:#e7edf5;--soft:#f4f7fc;--shadow:0 16px 44px rgba(35,62,104,.075)}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:radial-gradient(ellipse at 50% -20%,#fff 0,#f4f7fc 62%)}button,select{font:inherit}button{cursor:pointer}.app-shell{max-width:1130px;margin:auto;padding:0 34px 52px}.topbar{height:88px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e8edf4}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;color:var(--ink);font-family:Manrope,sans-serif;font-size:19px;font-weight:600;letter-spacing:-.7px}.brand strong{font-weight:800}.brand-mark{width:31px;height:31px;border:2px solid var(--blue);border-radius:9px;display:grid;grid-template-columns:1fr 1fr;overflow:hidden;transform:rotate(-5deg)}.brand-mark i{border:1px solid var(--blue);background:#eaf1ff}.brand-mark i:nth-child(2),.brand-mark i:nth-child(3){background:var(--blue)}.top-actions{display:flex;align-items:center;gap:24px}.difficulty-wrap{display:flex;flex-direction:column;gap:3px;color:#8793a5;font-size:10px;letter-spacing:.09em;text-transform:uppercase}.difficulty-wrap select{color:#25344a;border:0;background:transparent;padding:0 18px 0 0;font-size:14px;font-weight:700;letter-spacing:0;outline:none;cursor:pointer}.button{border:0;border-radius:11px;font-size:13px;font-weight:700;transition:transform .15s,background .15s,box-shadow .15s}.button:active,.tool-button:active,.text-button:active{transform:scale(.97)}.button-primary{background:var(--blue);color:white;box-shadow:0 6px 14px #3974e832}.button-primary:hover{background:var(--blue-dark);box-shadow:0 8px 20px #3974e844}.new-game{padding:12px 17px}.new-game span{margin-left:8px;font-size:16px}.game-layout{display:grid;grid-template-columns:minmax(0,650px) 280px;justify-content:center;gap:42px;padding-top:44px}.play-column{min-width:0}.game-heading{display:flex;align-items:flex-end;justify-content:space-between;margin:0 2px 20px}.eyebrow{margin:0 0 8px;color:#91a0b4;font-size:9px;font-weight:700;letter-spacing:.17em}.game-heading h1{margin:0;font-family:Manrope,sans-serif;font-size:23px;letter-spacing:-.8px;font-weight:700}.icon-button{width:35px;height:35px;border:1px solid var(--line);border-radius:10px;background:white;color:var(--blue);font-size:17px}.continue-button[hidden]{display:none}.board-card,.side-card{background:#fff;border:1px solid #edf1f7;border-radius:18px;box-shadow:var(--shadow)}.board-card{padding:19px 21px 16px}.board-toolbar{height:26px;display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.live-status{display:flex;gap:7px;align-items:center;color:#68778b;font-size:11px;font-weight:600}.status-dot{width:7px;height:7px;border-radius:50%;background:#53c694;box-shadow:0 0 0 3px #53c6941c}.status-dot.paused{background:#f0a83a;box-shadow:0 0 0 3px #f0a83a22}.stats{display:flex;gap:10px;align-items:center;color:#34445c;font-size:12px}.stats>div{display:flex;gap:5px;align-items:center}.stat-icon{color:#8497b2;font-size:16px}.error-icon{color:#e58686;font-weight:700}.stat-label{color:#8995a5;font-size:10px}.stat-divider{width:1px;height:17px;background:var(--line)}.board-wrap{width:100%;max-width:570px;margin:auto;aspect-ratio:1;overflow:hidden;border:2px solid #5579ba;border-radius:4px;background:#fff}.sudoku-board{width:100%;height:100%;display:grid;grid-template-columns:repeat(9,1fr);grid-template-rows:repeat(9,1fr)}.cell{position:relative;display:flex;justify-content:center;align-items:center;min-width:0;min-height:0;border:0;border-right:1px solid #dce3ee;border-bottom:1px solid #dce3ee;background:#fff;color:#3674e3;font-family:Manrope,sans-serif;font-size:clamp(15px,3.1vw,23px);font-weight:600;padding:0;user-select:none;-webkit-tap-highlight-color:transparent}.cell:nth-child(3n){border-right:2px solid #748db6}.cell:nth-child(9n){border-right:0}.cell:nth-child(n+19):nth-child(-n+27),.cell:nth-child(n+46):nth-child(-n+54){border-bottom:2px solid #748db6}.cell:nth-child(n+73){border-bottom:0}.cell.given{color:#26364d;font-weight:800}.cell.related{background:#f1f5fd}.cell.same-number{background:#e5edfd}.cell.selected{z-index:1;background:#dce8ff;box-shadow:inset 0 0 0 2px var(--blue)}.cell.conflict{background:#fff0ee;color:#d94f49}.cell.incorrect{color:#d94f49}.cell:focus-visible{outline:2px solid var(--blue);outline-offset:-3px;z-index:2}.cell .notes{position:absolute;inset:3px;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);align-items:center;justify-items:center;color:#8497b2;font-family:'DM Sans',sans-serif;font-size:clamp(7px,1.4vw,10px);font-weight:500;line-height:1}.cell .notes span{width:100%;height:100%;display:grid;place-items:center}.board-footer{display:flex;gap:10px;align-items:center;padding:15px 2px 0;color:#8290a3;font-size:10px}.progress-label{font-size:8px;font-weight:700;letter-spacing:.12em}.progress-track{height:4px;flex:1;border-radius:5px;background:#edf1f7;overflow:hidden}.progress-track span{display:block;height:100%;width:0;background:#5590f4;border-radius:5px;transition:width .25s}.number-panel{display:grid;grid-template-columns:repeat(9,1fr);gap:7px;margin:14px 0 10px}.number-button{height:43px;border:1px solid #e6ecf5;border-radius:10px;background:white;color:#3974e8;font-family:Manrope,sans-serif;font-size:18px;font-weight:700;box-shadow:0 2px 5px #1d33500a;transition:.15s}.number-button:hover{border-color:#9cb9f2;background:#f5f8ff}.number-button:disabled{opacity:.35;cursor:default;box-shadow:none}.play-tools{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.tool-button{height:42px;display:flex;justify-content:center;align-items:center;gap:7px;border:1px solid #e7edf5;border-radius:10px;background:#fff;color:#52627a;font-size:11px;font-weight:600}.tool-button[aria-pressed="true"]{border-color:#9eb9f0;background:#edf4ff;color:#326bd2}.tool-glyph{font-size:16px;color:#6482b6}.tool-button kbd{padding:2px 4px;border:1px solid #e8edf4;border-radius:4px;color:#95a1b1;font:9px 'DM Sans',sans-serif}.tool-count{display:grid;place-items:center;min-width:17px;height:17px;border-radius:20px;background:#edf3ff;color:#3974e8;font-size:10px}.side-column{padding-top:60px}.side-card{padding:19px;margin-bottom:14px}.section-heading{display:flex;gap:10px;align-items:center;color:#8996a8;font-size:9px;font-weight:700;letter-spacing:.14em}.heading-line{height:1px;flex:1;background:#edf1f6}.control-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:17px 0 12px}.button-soft{height:38px;background:#f4f7fc;color:#4e617d;border:1px solid #edf1f7}.button-soft:hover{background:#eaf1fd;color:#336bd0}.button-soft span{margin-right:4px;font-size:15px}.history-controls{display:flex;align-items:center;justify-content:space-between;padding:3px 2px 14px;border-bottom:1px solid #eff2f6}.history-controls>span{height:13px;width:1px;background:#e8edf4}.text-button{border:0;background:transparent;color:#65758c;font-size:10px;font-weight:600;padding:5px 0}.text-button:disabled{color:#c0c8d3;cursor:default}.error-toggle{width:100%;display:flex;justify-content:space-between;align-items:center;border:0;background:transparent;padding:14px 0 0;text-align:left}.toggle-copy{display:flex;flex-direction:column;gap:3px}.toggle-copy strong{font-size:11px;color:#52627a}.toggle-copy small{font-size:9px;color:#9aa5b4}.switch{width:31px;height:18px;padding:2px;border-radius:20px;background:#cfd7e2;transition:.2s}.switch i{display:block;width:14px;height:14px;border-radius:50%;background:#fff;box-shadow:0 1px 3px #0002;transition:.2s}.error-toggle[aria-pressed="true"] .switch{background:#4980e6}.error-toggle[aria-pressed="true"] .switch i{transform:translateX(13px)}.remaining-card{padding-bottom:16px}.remaining-hint{margin:12px 0;color:#98a3b2;font-size:10px}.remaining-list{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.remaining-item{height:37px;display:flex;justify-content:space-between;align-items:center;padding:0 9px;border:1px solid #edf1f7;border-radius:8px;background:#fbfcfe}.remaining-item strong{color:#3e6fc2;font-family:Manrope,sans-serif;font-size:13px}.remaining-item span{color:#8795a8;font-size:10px}.remaining-item.complete{background:#f3f9f6;border-color:#e1f1e8}.remaining-item.complete strong,.remaining-item.complete span{color:#91b5a0}.save-note{display:flex;gap:9px;align-items:center;padding:8px 4px;color:#677991;font-size:10px;line-height:1.5}.save-note small{color:#a1adbc;font-size:9px}.save-check{width:20px;height:20px;display:grid;place-items:center;border-radius:50%;background:#e9f7f0;color:#49a877;font-size:12px}.modal-backdrop{position:fixed;inset:0;z-index:10;display:grid;place-items:center;padding:20px;background:#16243c74;backdrop-filter:blur(5px)}.modal-backdrop[hidden]{display:none}.dialog{width:min(100%,365px);padding:32px 30px 28px;border:1px solid #edf1f7;border-radius:21px;background:white;box-shadow:0 22px 70px #10234335;text-align:center}.dialog-symbol{width:46px;height:46px;display:grid;place-items:center;margin:0 auto 17px;border-radius:15px;background:#edf3ff;color:#3974e8;font-size:20px}.dialog h2{margin:0 0 7px;font-family:Manrope,sans-serif;font-size:22px;letter-spacing:-.6px}.dialog>p:not(.eyebrow){margin:0 0 23px;color:#8290a3;font-size:12px}.dialog .button{width:100%;height:43px}.win-burst{display:block;margin:-3px 0 10px;color:#e5ad49;font-size:35px}.win-dialog .eyebrow{margin-bottom:6px}.win-dialog h2{font-size:28px}.win-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin:22px 0}.win-stats div{padding:12px 5px;border-radius:10px;background:#f5f7fb}.win-stats span,.win-stats strong{display:block}.win-stats span{margin-bottom:6px;color:#94a0af;font-size:8px;font-weight:700;letter-spacing:.1em}.win-stats strong{color:#34445c;font-size:13px}.toast{position:fixed;left:50%;bottom:25px;z-index:20;padding:11px 17px;border-radius:10px;background:#24344d;color:white;font-size:12px;box-shadow:0 8px 28px #14254233;transform:translate(-50%,15px);opacity:0;pointer-events:none;transition:.22s}.toast.visible{opacity:1;transform:translate(-50%,0)}
@media(min-width:900px){.cell{font-size:23px}}
@media(max-width:850px){.app-shell{max-width:690px;padding:0 22px 38px}.game-layout{grid-template-columns:minmax(0,1fr);gap:15px;padding-top:28px}.game-heading{margin-bottom:14px}.game-heading h1{font-size:21px}.side-column{padding-top:0;display:grid;grid-template-columns:1fr 1fr;gap:12px}.side-card{margin:0}.save-note{grid-column:1/-1;padding-top:0}.remaining-card{grid-row:span 2}.remaining-list{grid-template-columns:repeat(3,1fr)}.number-button{height:44px}}
@media(max-width:520px){.app-shell{padding:0 13px 28px}.topbar{height:68px}.brand{font-size:16px;gap:9px}.brand-mark{width:27px;height:27px;border-radius:7px}.top-actions{gap:12px}.difficulty-wrap{font-size:8px}.difficulty-wrap select{font-size:12px;max-width:95px}.new-game{padding:10px 11px;font-size:11px}.new-game span{margin-left:3px}.game-layout{padding-top:22px;gap:14px}.game-heading{margin:0 1px 13px}.game-heading h1{font-size:18px}.eyebrow{font-size:8px}.board-card{padding:12px 11px 12px;border-radius:14px}.board-toolbar{margin-bottom:10px}.board-wrap{border-width:2px}.cell{font-size:clamp(14px,5.2vw,20px)}.cell .notes{inset:2px;font-size:clamp(6px,2vw,9px)}.number-panel{gap:4px;margin-top:10px}.number-button{height:40px;border-radius:8px;font-size:16px}.play-tools{gap:5px}.tool-button{gap:4px;height:39px;font-size:10px}.tool-button kbd{display:none}.side-column{grid-template-columns:1fr 1fr;gap:8px}.side-card{padding:14px 12px;border-radius:14px}.section-heading{font-size:8px;letter-spacing:.1em}.control-grid{gap:5px;margin:13px 0 8px}.button-soft{height:35px;font-size:10px}.history-controls{padding-bottom:10px}.text-button{font-size:9px}.toggle-copy strong{font-size:10px}.toggle-copy small{font-size:8px}.remaining-hint{font-size:9px;line-height:1.4}.remaining-item{height:38px;padding:3px 2px;flex-direction:column;justify-content:center;gap:1px}.remaining-item strong{font-size:12px;line-height:1}.remaining-item span{font-size:8px;line-height:1;white-space:nowrap}.save-note{font-size:9px}.stat-label{font-size:9px}}


.screen[hidden]{display:none!important}.screen{min-height:100svh}.app-shell{max-width:1180px;padding:0 30px 30px}body{color:var(--ink);background:var(--page-bg)}:root{--page-bg:#f3f6fb;--surface:#fff;--surface-soft:#f6f8fc;--ink:#1d2a3b;--muted:#8290a3;--line:#e5ebf3;--blue:#3974e8;--blue-dark:#245cca;--shadow:0 18px 55px rgba(35,62,104,.08)}body[data-theme="dark"]{--page-bg:#111827;--surface:#1b2638;--surface-soft:#202d42;--ink:#edf3fc;--muted:#9cabc0;--line:#344258;--blue:#78a3ff;--blue-dark:#5b8bed;--shadow:0 18px 55px rgba(0,0,0,.2)}body[data-theme="dark"]{background:radial-gradient(ellipse at 50% -15%,#27354a 0,#111827 70%)}body[data-theme="dark"] .board-card,body[data-theme="dark"] .side-card,body[data-theme="dark"] .settings-card,body[data-theme="dark"] .dialog{background:var(--surface);border-color:var(--line)}body[data-theme="dark"] .cell,body[data-theme="dark"] .number-button,body[data-theme="dark"] .tool-button,body[data-theme="dark"] .menu-button,body[data-theme="dark"] .home-difficulty,body[data-theme="dark"] .example-card{background:var(--surface);color:var(--ink);border-color:var(--line)}body[data-theme="dark"] .cell.given{color:#e3ebf8}body[data-theme="dark"] .cell.related{background:#283750}body[data-theme="dark"] .cell.selected{background:#304a70}body[data-theme="dark"] .cell.same-number{background:#344660}body[data-theme="dark"] .cell.conflict{background:#4a2d37;color:#ff9e9a}body[data-theme="dark"] .remaining-item,body[data-theme="dark"] .win-stats div{background:#202d42;border-color:#344258}body[data-theme="dark"] .remaining-item strong,body[data-theme="dark"] .stats,body[data-theme="dark"] .stats strong,body[data-theme="dark"] .toggle-copy strong,body[data-theme="dark"] .dialog h2{color:var(--ink)}body[data-theme="dark"] select{color:var(--ink);background-color:var(--surface)}body[data-theme="dark"] .game-topbar,body[data-theme="dark"] .subpage-header{border-color:var(--line)}body[data-theme="dark"] .board-wrap{background:#1b2638}body[data-theme="dark"] .cell{border-color:#344258}body[data-theme="dark"] .cell:nth-child(3n){border-right-color:#647a9e}body[data-theme="dark"] .cell:nth-child(n+19):nth-child(-n+27),body[data-theme="dark"] .cell:nth-child(n+46):nth-child(-n+54){border-bottom-color:#647a9e}
.home-screen{display:flex;flex-direction:column;min-height:100svh;padding:26px clamp(18px,5vw,68px) 22px;overflow:hidden}.home-top,.home-bottom{display:flex;align-items:center;justify-content:space-between}.home-top{height:45px}.home-edition,.subpage-tag{color:#94a2b5;font-size:9px;font-weight:700;letter-spacing:.16em}.home-content{width:min(100%,900px);flex:1;align-self:center;display:grid;grid-template-columns:minmax(260px,1fr) minmax(320px,410px);align-items:center;gap:clamp(35px,8vw,100px);padding:20px 0 34px}.home-art{position:relative;display:grid;place-items:center;min-height:380px}.art-grid{width:min(34vw,360px);aspect-ratio:1;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);border:3px solid #8dadf0;border-radius:20px;overflow:hidden;transform:rotate(-7deg);background:var(--surface);box-shadow:0 28px 70px rgba(54,101,180,.12)}.art-grid i{display:grid;place-items:center;border:1px solid #d7e2f4;color:#7595ce;font-family:Manrope,sans-serif;font-size:clamp(25px,5vw,48px);font-style:normal;font-weight:700}.art-grid i:nth-child(2),.art-grid i:nth-child(4),.art-grid i:nth-child(6),.art-grid i:nth-child(8){background:#f0f5ff}.art-grid i:first-child,.art-grid i:nth-child(5),.art-grid i:nth-child(9){color:var(--blue)}.art-spark{position:absolute;color:#e8b94d;font-size:30px}.spark-one{top:17%;right:14%}.spark-two{bottom:16%;left:10%;font-size:48px;color:#81bfa6}.home-copy{max-width:410px}.home-copy .eyebrow{margin-bottom:12px}.home-copy h1{margin:0;color:var(--ink);font-family:Manrope,sans-serif;font-size:clamp(52px,7vw,78px);line-height:.95;letter-spacing:-.075em}.home-copy h1 span{color:var(--blue)}.home-description{margin:18px 0 24px;color:var(--muted);font-size:14px}.home-difficulty{width:100%;height:54px;display:flex;justify-content:space-between;align-items:center;padding:0 15px;margin-bottom:11px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:#8c9aaf}.home-difficulty>span{font-size:9px;font-weight:700;letter-spacing:.12em}.home-difficulty select{min-width:120px;border:0;outline:0;background:transparent;color:var(--ink);font-size:13px;font-weight:700;text-align:right}.main-menu{display:grid;gap:8px}.menu-button{position:relative;min-height:51px;display:flex;align-items:center;gap:13px;padding:0 15px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--ink);font-size:13px;font-weight:700;text-align:left;transition:transform .18s,border-color .18s,background .18s}.menu-button:hover{transform:translateY(-1px);border-color:#a9c0ed}.menu-primary{min-height:57px;border-color:var(--blue);background:var(--blue);color:white;box-shadow:0 8px 22px #3974e82e}.menu-primary:hover{background:var(--blue-dark);border-color:var(--blue-dark)}.menu-icon{width:26px;height:26px;display:grid;place-items:center;border-radius:8px;background:#edf3ff;color:var(--blue);font-size:12px}.menu-primary .menu-icon{background:#ffffff25;color:white}.menu-arrow{margin-left:auto;color:#97a6b9;font-size:17px}.menu-primary .menu-arrow{color:#fff}.continue-label{margin-left:auto;color:#93a0b2;font-size:9px;font-weight:500}.menu-button:disabled{opacity:.55;cursor:not-allowed}.home-bottom{color:#94a2b5;font-size:10px}.home-bottom>span:first-child{display:flex;align-items:center;gap:8px}.home-bottom i{width:7px;height:7px;border-radius:50%;background:#55c294}.home-bottom>span:last-child{font-size:9px;letter-spacing:.14em}
.subpage-header,.game-topbar{height:68px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.subpage-header{max-width:1050px;margin:0 auto}.mini-brand{font-size:16px}.mini-brand .brand-mark{width:27px;height:27px}.back-button{width:38px;height:38px;border:1px solid var(--line);border-radius:11px;background:var(--surface);color:var(--ink);font-size:20px}.subpage-content{width:min(100%,960px);margin:0 auto;padding:40px 0 50px}.subpage-content h1{margin:0;color:var(--ink);font-family:Manrope,sans-serif;font-size:38px;letter-spacing:-1.8px}.page-intro{max-width:520px;margin:9px 0 28px;color:var(--muted);font-size:13px;line-height:1.7}.rule-layout{display:grid;grid-template-columns:245px 1fr;gap:28px;align-items:start}.example-card{position:sticky;top:20px;padding:22px;border:1px solid var(--line);border-radius:18px;background:var(--surface);text-align:center}.example-board{width:160px;aspect-ratio:1;display:grid;grid-template-columns:repeat(3,1fr);margin:0 auto 17px;border:2px solid #6485bd;border-radius:4px;overflow:hidden}.example-board span{display:grid;place-items:center;border-right:1px solid #dce3ee;border-bottom:1px solid #dce3ee;color:var(--blue);font-family:Manrope,sans-serif;font-size:18px;font-weight:700}.example-board span:nth-child(3n){border-right:0}.example-board span:nth-child(n+7){border-bottom:0}.example-board .example-focus{background:#dce8ff;color:#245cca}.example-card p{margin:0;color:var(--muted);font-size:11px;line-height:1.6}.rule-list{display:grid;gap:0}.rule-list article{display:grid;grid-template-columns:44px 1fr;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}.rule-number{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:#edf3ff;color:var(--blue);font-size:10px;font-weight:800}.rule-list h2{margin:1px 0 4px;color:var(--ink);font-size:13px}.rule-list p{margin:0;color:var(--muted);font-size:11px;line-height:1.65}.how-back{width:200px;height:44px;margin:24px 0 0}.how-back span{margin-left:8px}
.settings-content{max-width:900px}.settings-content>.eyebrow{margin-bottom:7px}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px;margin-top:22px}.settings-card{padding:20px 21px;border:1px solid var(--line);border-radius:16px;background:var(--surface);box-shadow:0 8px 30px rgba(35,62,104,.035)}.appearance-card{grid-column:1/-1}.settings-section-title{display:flex;gap:12px;align-items:center;margin-bottom:12px}.settings-symbol{width:35px;height:35px;display:grid;place-items:center;border-radius:11px;background:#edf3ff;color:var(--blue);font-size:17px}.settings-section-title h2{margin:0 0 3px;color:var(--ink);font-size:14px}.settings-section-title p{margin:0;color:var(--muted);font-size:10px}.setting-row,.select-row{position:relative;min-height:52px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line)}.setting-row>span:first-child,.select-row>span{display:flex;flex-direction:column;gap:3px}.setting-row strong,.select-row strong{color:var(--ink);font-size:11px}.setting-row small,.select-row small{color:var(--muted);font-size:9px}.switch-input{position:absolute;width:1px;height:1px;opacity:0}.switch-input+.switch{flex:none;cursor:pointer}.switch-input:checked+.switch{background:var(--blue)}.switch-input:checked+.switch i{transform:translateX(13px)}.switch-input:focus-visible+.switch{outline:3px solid #8eb1fa;outline-offset:2px}.range-row{display:block;padding:10px 0 13px;border-top:1px solid var(--line)}.range-row>span{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;color:var(--muted);font-size:10px}.range-row output{color:var(--blue);font-weight:700}.range-row input{width:100%;accent-color:var(--blue);height:16px}.select-row select{max-width:145px;padding:8px 26px 8px 10px;border:1px solid var(--line);border-radius:9px;background:var(--surface-soft);color:var(--ink);font-size:11px;font-weight:600}.appearance-card .select-row{display:inline-flex;width:49%;padding:0 10px 0 0}.appearance-card .setting-row{width:49%;display:inline-flex;padding-right:10px}.settings-actions{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:17px}.settings-actions>div{display:flex;gap:8px}.settings-actions .button{min-height:41px;padding:0 15px}.settings-actions .button-primary{color:#fff}
.game-screen{padding:0 0 24px}.game-topbar{height:62px;padding:0 4px}.game-brand{display:flex;align-items:center;gap:10px;border:0;background:transparent;color:var(--ink);font-family:Manrope,sans-serif;font-size:15px;font-weight:600;letter-spacing:-.4px}.game-brand strong{font-weight:800}.game-brand .brand-mark{width:26px;height:26px;border-radius:7px}.game-header-center{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:11px}.header-difficulty{color:var(--ink);font-weight:700}.header-separator{height:15px;width:1px;background:var(--line)}.pause-button{height:37px;display:flex;align-items:center;gap:7px;padding:0 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);font-size:11px;font-weight:700}.pause-button>span:first-child{color:var(--blue);font-size:15px}.game-layout{grid-template-columns:minmax(0,620px) 265px;gap:28px;padding-top:24px}.side-column{padding-top:0}.board-card{padding:15px 16px 13px}.board-wrap{max-width:560px}.board-footer{padding-top:11px}.number-panel{margin-top:11px}.cell{font-size:var(--cell-font,clamp(15px,3.1vw,23px))}body[data-number-size="small"] .cell{font-size:clamp(13px,2.4vw,18px)}body[data-number-size="medium"] .cell{font-size:clamp(16px,3.1vw,23px)}body[data-number-size="large"] .cell{font-size:clamp(19px,4vw,28px)}.game-screen .side-card{margin-bottom:12px}.game-screen .side-column{padding-top:0}.game-screen .remaining-card{grid-row:auto}.game-screen .save-note{padding-top:3px}.sudoku-canvas{display:block;width:100%;height:100%;outline:none;touch-action:manipulation;cursor:cell}.sudoku-canvas:focus-visible{outline:3px solid #8db0ff;outline-offset:-4px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.network-status{display:flex;align-items:center;gap:7px;padding:10px 0 0;color:var(--muted);font-size:9px}.network-dot{width:7px;height:7px;border-radius:50%;background:#55bc91;box-shadow:0 0 0 3px #55bc911e}.network-dot.network-offline{background:#e5a451;box-shadow:0 0 0 3px #e5a45120}.settings-content .select-row{width:100%;display:flex;padding-right:0}.game-preference-card{align-self:start}
body.no-animations *,body.no-animations *::before,body.no-animations *::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}
@media(max-width:850px){.app-shell{padding:0 22px 25px}.home-screen{padding-left:24px;padding-right:24px}.home-content{grid-template-columns:minmax(210px,.85fr) minmax(300px,1.15fr);gap:28px}.art-grid{width:min(32vw,300px)}.game-layout{grid-template-columns:minmax(0,1fr);gap:14px;padding-top:17px}.game-screen{max-width:690px;margin:auto}.game-screen .side-column{display:grid;grid-template-columns:1fr 1fr;gap:9px}.game-screen .side-card{margin:0}.game-screen .remaining-card{grid-row:span 2}.game-screen .save-note{grid-column:1/-1;padding-top:0}.game-screen .board-wrap{max-width:min(100%,550px)}.subpage-header{margin:0 22px}}
@media(max-width:600px){.app-shell{padding:0 14px 20px;padding-left:max(14px,env(safe-area-inset-left));padding-right:max(14px,env(safe-area-inset-right))}.home-screen{padding-left:max(18px,env(safe-area-inset-left));padding-right:max(18px,env(safe-area-inset-right))}.home-screen{padding:18px 5px 16px;padding-left:max(18px,env(safe-area-inset-left));padding-right:max(18px,env(safe-area-inset-right))}.home-top{height:38px}.home-edition{font-size:7px}.home-content{grid-template-columns:1fr;gap:5px;max-width:420px;padding:10px 0 18px}.home-art{min-height:150px}.art-grid{width:145px;border-radius:13px;border-width:2px}.art-grid i{font-size:24px}.art-spark{font-size:21px}.spark-one{right:24%;top:14%}.spark-two{left:19%;bottom:5%;font-size:35px}.home-copy{text-align:left}.home-copy .eyebrow{font-size:8px}.home-copy h1{font-size:48px}.home-description{margin:10px 0 15px;font-size:12px}.home-difficulty{height:47px;margin-bottom:9px}.menu-button{min-height:47px}.menu-primary{min-height:52px}.home-bottom{font-size:8px}.home-bottom>span:last-child{display:none}.subpage-header{height:58px;margin:0 14px}.mini-brand{font-size:14px}.subpage-tag{font-size:7px}.subpage-content{padding:25px 0 35px}.subpage-content h1{font-size:31px}.page-intro{font-size:11px;margin:7px 0 19px}.rule-layout{grid-template-columns:1fr;gap:17px}.example-card{position:static;display:flex;align-items:center;gap:17px;padding:12px 14px;text-align:left}.example-board{width:92px;flex:none;margin:0}.example-board span{font-size:13px}.example-card p br{display:none}.example-card p{font-size:10px}.rule-list article{padding:10px 0;grid-template-columns:36px 1fr;gap:9px}.rule-number{width:30px;height:30px}.settings-content{padding-top:24px}.settings-grid{grid-template-columns:1fr;gap:9px;margin-top:16px}.appearance-card{grid-column:auto}.settings-card{padding:14px}.settings-section-title{margin-bottom:8px}.appearance-card .select-row,.appearance-card .setting-row{width:100%;display:flex;padding-right:0}.settings-actions{align-items:stretch;flex-direction:column;margin-top:12px}.settings-actions>div{display:grid;grid-template-columns:1fr 1fr}.settings-actions .button{padding:0 9px;font-size:10px}.game-screen{padding-bottom:18px}.game-topbar{height:55px}.game-brand{font-size:13px;gap:7px}.game-brand .brand-mark{width:23px;height:23px}.game-header-center{gap:7px;font-size:9px}.pause-button{height:34px;padding:0 9px;font-size:10px}.game-layout{padding-top:12px;gap:10px}.board-card{padding:10px 9px 10px;border-radius:14px}.board-toolbar{height:21px;margin-bottom:7px}.board-wrap{max-width:100%;border-width:2px}.cell{font-size:clamp(14px,5.1vw,21px)}body[data-number-size="small"] .cell{font-size:clamp(12px,4vw,16px)}body[data-number-size="medium"] .cell{font-size:clamp(14px,5.1vw,21px)}body[data-number-size="large"] .cell{font-size:clamp(17px,6vw,25px)}.board-footer{padding-top:9px}.number-panel{gap:4px;margin:8px 0}.number-button{height:40px;border-radius:8px;font-size:16px}.play-tools{gap:5px}.tool-button{height:38px;font-size:10px}.tool-button kbd{display:none}.game-screen .side-column{grid-template-columns:1fr 1fr;gap:7px}.game-screen .side-card{padding:12px 10px;border-radius:13px}.game-screen .section-heading{font-size:7px;letter-spacing:.08em}.game-screen .control-grid{margin:10px 0 6px;gap:5px}.game-screen .button-soft{height:33px;font-size:9px}.game-screen .history-controls{padding-bottom:7px}.game-screen .text-button{font-size:8px}.game-screen .toggle-copy strong{font-size:9px}.game-screen .toggle-copy small{font-size:7px}.game-screen .remaining-hint{font-size:8px;margin:8px 0}.game-screen .remaining-item{height:34px;padding:2px;flex-direction:column;justify-content:center;gap:1px}.game-screen .remaining-item strong{font-size:11px;line-height:1}.game-screen .remaining-item span{font-size:7px;line-height:1;white-space:nowrap}.game-screen .save-note{font-size:8px}.dialog{padding:25px 22px 22px}.dialog-actions{display:grid;gap:7px}.dialog-actions .button{height:40px}}
@media(max-width:370px){.home-content{max-width:100%}.home-art{min-height:120px}.art-grid{width:120px}.home-copy h1{font-size:43px}.game-header-center{gap:5px}.game-brand{font-size:11px}.pause-button{padding:0 7px}.game-screen .side-column{grid-template-columns:1fr}.game-screen .remaining-card{grid-row:auto}.game-screen .remaining-list{grid-template-columns:repeat(3,1fr)}}
@media(orientation:landscape) and (max-height:600px){.app-shell{height:100svh;min-height:0;padding:0;overflow:hidden}.game-screen{max-width:none;margin:0;padding-left:max(12px,env(safe-area-inset-left));padding-right:max(12px,env(safe-area-inset-right))}.home-screen{min-height:100svh;padding-top:10px;padding-bottom:10px}.home-content{grid-template-columns:minmax(200px,.9fr) minmax(300px,1.1fr);gap:28px;padding:8px 0}.home-art{min-height:0}.art-grid{width:min(35vh,245px)}.home-copy h1{font-size:clamp(38px,8vh,58px)}.home-description{margin:8px 0 11px}.home-difficulty{height:42px;margin-bottom:7px}.main-menu{grid-template-columns:1fr 1fr;gap:6px}.menu-button,.menu-primary{min-height:42px;padding:0 10px;font-size:10px}.continue-label{display:none}.home-bottom{font-size:8px}.game-screen{height:100svh;min-height:0;overflow:auto;padding:0 12px 6px}.game-topbar{height:48px;min-height:48px}.game-layout{height:calc(100svh - 54px);min-height:0;grid-template-columns:minmax(0,1fr) minmax(210px,29vw);gap:12px;padding-top:5px;overflow:auto}.game-screen .play-column{min-width:0;display:grid;grid-template-columns:minmax(0,1fr) minmax(60px,auto);grid-template-rows:1fr auto;align-items:center;column-gap:8px;min-height:0}.game-screen .board-card{grid-row:1/3;min-width:0;display:flex;flex-direction:column;justify-content:center;padding:5px 7px}.game-screen .board-toolbar{height:17px;flex:none;margin-bottom:3px}.game-screen .live-status{font-size:8px}.game-screen .stats{gap:5px;font-size:9px}.game-screen .stat-icon{font-size:12px}.game-screen .stat-label{font-size:8px}.game-screen .board-wrap{width:min(100%,calc(100svh - 153px));max-width:none;flex:none;margin:auto}.game-screen .board-footer{padding-top:4px;font-size:8px}.game-screen .number-panel{grid-column:2;grid-row:1;grid-template-columns:repeat(3,minmax(24px,1fr));gap:3px;margin:0}.game-screen .number-button{height:clamp(28px,8vh,38px);font-size:14px}.game-screen .play-tools{grid-column:2;grid-row:2;grid-template-columns:1fr;gap:3px}.game-screen .tool-button{height:29px;font-size:8px}.game-screen .side-column{display:grid;grid-template-columns:1fr;align-content:start;gap:5px;overflow:auto}.game-screen .side-card{padding:9px;margin:0}.game-screen .section-heading{font-size:7px}.game-screen .control-grid{margin:7px 0 3px}.game-screen .button-soft{height:28px;font-size:8px}.game-screen .history-controls{padding-bottom:4px}.game-screen .error-toggle{padding-top:5px}.game-screen .remaining-hint{margin:5px 0;font-size:7px}.game-screen .remaining-list{grid-template-columns:repeat(3,1fr);gap:3px}.game-screen .remaining-item{height:25px;display:flex;flex-direction:row;padding:0 4px}.game-screen .remaining-item strong{font-size:10px}.game-screen .remaining-item span{font-size:7px}.game-screen .save-note{font-size:7px;padding:0}.subpage-content{padding-top:18px}.settings-grid{gap:7px}.settings-card{padding:11px}.settings-section-title{margin-bottom:4px}.setting-row,.select-row{min-height:41px}.range-row{padding:5px 0}.subpage-header{height:48px}}
@media(max-width:365px){.brand{font-size:14px;gap:6px}.brand-mark{width:24px;height:24px}.top-actions{gap:5px}.difficulty-wrap select{max-width:74px}.new-game{padding:8px 7px;font-size:10px}.number-button{height:36px}.side-column{grid-template-columns:1fr}.remaining-card{grid-row:auto}.remaining-list{grid-template-columns:repeat(3,1fr)}.cell{font-size:14px}}