:root{color:#24313a;font-synthesis:none;text-rendering:optimizelegibility;--paper:#f7f1e7;--surface:#fffbf4;--ink:#24313a;--muted:#697178;--line:#ded5c7;--accent:#d15f3b;--accent-strong:#bd4727;--sage:#6e8b74;--sage-soft:#dfe9df;--danger:#a93b31;--shadow:0 8px 28px #3c2b1a12;background:#f7f1e7;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}:root[data-theme=dark]{color:#f2eee8;--paper:#151a1d;--surface:#20272b;--ink:#f2eee8;--muted:#b7bdc0;--line:#3d464a;--accent:#ffa181;--accent-strong:#ffb39a;--sage:#a7c9ae;--sage-soft:#31433a;--danger:#ffb4ab;--shadow:none;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;background:#151a1d}@media (prefers-color-scheme:dark){:root[data-theme=system]{color:#f2eee8;--paper:#151a1d;--surface:#20272b;--ink:#f2eee8;--muted:#b7bdc0;--line:#3d464a;--accent:#ffa181;--accent-strong:#ffb39a;--sage:#a7c9ae;--sage-soft:#31433a;--danger:#ffb4ab;--shadow:none;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;background:#151a1d}}*{box-sizing:border-box}html{min-height:100%;background:var(--paper);min-height:100dvh}body{min-width:320px;min-height:100vh;background:var(--paper);min-height:100dvh;margin:0}#root{min-height:100dvh}button,input{font:inherit}button{color:inherit}button:focus-visible,input:focus-visible{outline:3px solid color-mix(in srgb, var(--accent) 45%, transparent);outline-offset:2px}h1,h2,p{margin-top:0}h1,h2{letter-spacing:-.025em;font-family:Georgia,Times New Roman,serif}.app-shell{width:min(100%,760px);min-height:100vh;background:var(--paper);min-height:100dvh;margin:0 auto}.main-content{padding-bottom:calc(92px + env(safe-area-inset-bottom))}.screen{padding:max(28px, env(safe-area-inset-top)) clamp(20px, 5vw, 42px) 34px;animation:.24s ease-out appear}@keyframes appear{0%{opacity:0;transform:translateY(5px)}}@media 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span{font-family:Georgia,serif;font-size:1.45rem}.progress-track,.mini-track{background:var(--line);border-radius:20px;height:7px;overflow:hidden}.progress-track{margin-bottom:20px}.progress-track span,.mini-track i{border-radius:inherit;background:var(--accent);height:100%;display:block}.primary-button,.outline-button,.danger-button{cursor:pointer;border-radius:9px;justify-content:center;align-items:center;gap:10px;width:100%;min-height:52px;padding:0 20px;font-size:1rem;font-weight:720;display:flex}.primary-button{border:1px solid var(--accent);color:#fff;background:var(--accent)}.primary-button:hover{background:var(--accent-strong)}.primary-button svg{width:22px;height:22px}.outline-button{border:1px solid var(--line);color:var(--ink);background:0 0;text-decoration:none}.danger-button{border:1px solid color-mix(in srgb, var(--danger) 45%, var(--line));color:var(--danger);background:0 0}.library-preview{margin-top:32px}.library-preview>h2,.screen-header h1{margin-bottom:12px;font-size:clamp(2rem,9vw,3rem);font-weight:600}.kind-list{border-top:1px solid var(--line)}.kind-row{border:0;border-bottom:1px solid var(--line);text-align:left;cursor:pointer;background:0 0;grid-template-columns:66px 1fr 28px;align-items:center;gap:13px;width:100%;min-height:87px;padding:13px 2px;display:grid}.kind-row>svg{width:26px}.kind-mark{border:1.5px solid var(--sage);width:58px;height:58px;color:var(--sage);border-radius:5px;place-items:center;font-family:Georgia,serif;font-size:1.6rem;line-height:1;display:grid}.kind-hakoiri{font-size:.9rem}.kind-sudoku{background-image:linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);background-size:33.333% 33.333%}.kind-copy{gap:5px;min-width:0;display:grid}.kind-copy strong{text-overflow:ellipsis;font-family:Georgia,serif;font-size:1.27rem;overflow:hidden}.kind-copy small{color:var(--muted);font-size:.9rem}.kind-copy em{color:var(--sage);font-style:normal}.text-button{min-height:48px;color:var(--sage);cursor:pointer;background:0 0;border:0;align-items:center;gap:7px;margin:7px auto 0;font-weight:700;display:flex}.text-button svg{width:20px;transform:rotate(90deg)}.bottom-nav{z-index:20;width:min(100%,760px);padding:8px 6px calc(8px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:color-mix(in srgb, var(--surface) 95%, transparent);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);grid-template-columns:repeat(4,1fr);display:grid;position:fixed;bottom:0;left:50%;transform:translate(-50%)}.bottom-nav button{min-height:58px;color:var(--ink);cursor:pointer;background:0 0;border:0;border-radius:9px;align-content:center;place-items:center;gap:4px;font-size:.72rem;display:grid}.bottom-nav svg{width:25px;height:25px}.bottom-nav button.active{color:var(--accent);font-weight:750}.screen-header{justify-content:space-between;align-items:end;margin:6px 0 25px;display:flex}.screen-header h1{margin-bottom:2px}.screen-header p,.category-header p{color:var(--muted);margin:0}.category-header{grid-template-columns:46px 1fr;align-items:center;margin-bottom:18px;display:grid}.category-header-with-info{grid-template-columns:46px minmax(0,1fr) 46px}.category-header-with-info>div{min-width:0}.category-header-with-info h1,.category-header-with-info p{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.category-header h1{margin:0 0 2px;font-size:2rem}.puzzle-filters{border:1px solid var(--line);background:var(--surface);border-radius:10px;grid-template-columns:repeat(3,1fr);gap:3px;margin:0 0 14px;padding:3px;display:grid}.puzzle-filters button{min-height:38px;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:7px;font-size:.82rem;font-weight:700}.puzzle-filters button.active{color:var(--ink);background:var(--sage-soft)}.puzzle-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;display:grid}.puzzle-tile{border:1px solid var(--line);background:var(--surface);cursor:pointer;border-radius:9px;align-content:center;place-items:center;gap:3px;min-height:64px;padding:8px 5px 7px;display:grid;position:relative}.puzzle-tile>strong{font-family:Georgia,serif;font-size:1.35rem;line-height:1}.puzzle-tile .puzzle-size{color:var(--muted);font-size:.62rem;line-height:1}.puzzle-tile .puzzle-status{color:var(--sage);font-size:.72rem;font-weight:900;line-height:1;position:absolute;top:4px;right:5px}.puzzle-tile.solved{background:var(--sage-soft);border-color:var(--sage)}.puzzle-tile.started{border-color:var(--accent);background:color-mix(in srgb, var(--accent) 12%, var(--surface))}@media (min-width:600px){.puzzle-grid{grid-template-columns:repeat(9,minmax(0,1fr))}}.empty-filter{color:var(--muted);text-align:center;padding:32px 10px}.player-screen{width:min(100%,760px);height:100vh;height:100dvh;min-height:0;padding:max(13px, env(safe-area-inset-top)) clamp(12px, 4vw, 28px) max(8px, env(safe-area-inset-bottom));overscroll-behavior-y:none;flex-direction:column;margin:0 auto;display:flex;position:relative;overflow-y:auto}.player-header{text-align:center;grid-template-columns:46px minmax(0,1fr) auto;align-items:center;min-height:64px;display:grid}.player-header h1{margin:0;font-size:1.55rem}.player-header p{color:var(--muted);margin:3px 0 0;font-size:.86rem}.player-title{min-width:0}.player-title h1,.player-title p{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.player-header-actions{display:flex}.player-header-actions .icon-button{width:40px;height:40px}.player-header-actions svg{width:23px;height:23px}.more-menu{z-index:10;right:18px;top:calc(66px + env(safe-area-inset-top));border:1px solid var(--line);background:var(--surface);border-radius:10px;width:180px;padding:6px;position:absolute;box-shadow:0 12px 36px #1414122e}.more-menu button{text-align:left;cursor:pointer;background:0 0;border:0;border-radius:7px;width:100%;min-height:44px;padding:0 12px}.more-menu button:hover{background:var(--sage-soft)}.board-stage{width:100%;max-width:650px;margin:auto auto 8px}.puzzle-board{grid-template-columns:var(--edge-left) repeat(var(--board-cols), minmax(0, 1fr)) var(--edge-right);grid-template-rows:var(--edge-top) repeat(var(--board-rows), minmax(0, 1fr)) var(--edge-bottom);width:100%;display:grid;container-type:inline-size}.edge-clue{font-family:Georgia,serif;font-weight:700;font-size:clamp(.66rem, calc(38cqi / var(--board-cols)), 1.15rem);place-items:center;display:grid}.board-cell{border-style:solid;border-color:color-mix(in srgb, var(--ink) 82%, transparent);background:var(--surface);min-width:0;min-height:0;font-family:Georgia,serif;font-size:clamp(.68rem, calc(72cqi / var(--board-cols)), 2.65rem);cursor:pointer;place-items:center;padding:0;line-height:1;display:grid;position:relative;overflow:hidden}.board-cell.related{background:color-mix(in srgb, var(--sage-soft) 52%, var(--surface))}.board-cell.selected{background:var(--sage-soft);box-shadow:inset 0 0 0 2px var(--sage);z-index:2}.puzzle-board.cross-drag-enabled{touch-action:none;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}.board-cell.cross-drag-preview{background:color-mix(in srgb, var(--accent) 13%, var(--surface))}.board-cell.cross-drag-erase-preview{background:color-mix(in srgb, var(--ink) 8%, var(--surface))}.board-cell.error{background:color-mix(in srgb, var(--danger) 17%, var(--surface))}.board-cell.black{color:#fff;background:#20262a}.puzzle-board-akari .board-cell:not(.black){color:#24313a;background:#fffdf7}.puzzle-board-akari .board-cell.selected:not(.black){background:#dfe9df}.puzzle-board-akari .board-cell.error:not(.black){background:#f5ddd7}.board-cell strong{font-size:.88em;font-weight:700}.arrow-mark{pointer-events:none;width:76%;height:76%;overflow:visible}.arrow-mark path{fill:none;stroke:currentColor;stroke-width:5.5px;stroke-linecap:round;stroke-linejoin:round}.user-value,.binary-mark{color:var(--accent)}.hakoiri-symbol{width:.78em;height:.78em;overflow:visible}.hakoiri-symbol path,.hakoiri-symbol circle,.hakoiri-symbol rect{fill:none;stroke:currentColor;stroke-width:4.5px;stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke}.cell-notes .hakoiri-symbol{width:72%;height:72%}.number-pad .hakoiri-symbol{width:1.18rem;height:1.18rem}.binary-mark{font-size:1.12em}.cross-mark{color:var(--muted);font-family:ui-sans-serif,sans-serif;font-size:1em}.tree-mark{color:var(--sage);font-size:.88em}.cell-notes{font-family:ui-sans-serif,sans-serif;font-size:clamp(.34rem, calc(19cqi / var(--board-cols)), 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i{aspect-ratio:1;background:var(--muted);border-right:1px solid var(--surface);width:clamp(10px,2.8vw,19px);display:block}.fleet-ship i:first-child{border-radius:999px 0 0 999px}.fleet-ship i:last-child{border-right:0;border-radius:0 999px 999px 0}.fleet-ship.single i{border-radius:50%}.fleet-ship.complete:after{content:"";background:var(--accent);transform-origin:50%;border-radius:4px;width:110%;height:2.5px;position:absolute;bottom:4%;left:-5%;transform:rotate(-18deg)}.puzzle-variant{width:100%;max-width:650px;min-height:38px;color:var(--muted);text-align:center;justify-content:center;align-items:center;gap:4px;margin:0 auto 5px;padding:6px 8px;font-size:clamp(.7rem,2.8vw,.84rem);line-height:1.35;display:flex}.puzzle-variant span{flex:none}.puzzle-variant strong{color:var(--ink);font-weight:700}.feedback{border:1px solid var(--line);background:var(--surface);border-radius:9px;align-items:center;gap:9px;width:100%;max-width:650px;min-height:48px;margin:6px auto 8px;padding:9px 13px;font-size:.86rem;display:flex}.feedback svg{flex:none;width:24px}.feedback.success{color:var(--sage)}.feedback.warning{color:var(--danger)}.feedback-spacer{height:6px}.number-pad{grid-template-columns:repeat(var(--pad-cols), 1fr);gap:6px;width:100%;max-width:560px;margin:7px auto;display:grid}.number-pad button{border:1px solid var(--line);background:var(--surface);cursor:pointer;border-radius:8px;min-height:clamp(38px,9vw,48px);font-family:Georgia,serif;font-size:1.18rem}.number-pad button:active{background:var(--sage-soft);border-color:var(--sage)}.number-actions,.player-toolbar{border:1px solid var(--line);background:var(--surface);border-radius:9px;width:100%;max-width:650px;margin:8px auto;display:grid;overflow:hidden}.number-actions{grid-template-columns:repeat(2,1fr)}.number-actions.sudoku-actions{grid-template-columns:repeat(3,1fr)}.player-toolbar{z-index:8;flex:none;grid-template-columns:repeat(4,1fr);margin-bottom:0;position:sticky;bottom:0}.number-actions button,.player-toolbar button{border:0;border-right:1px solid var(--line);min-height:61px;color:var(--ink);cursor:pointer;background:0 0;align-content:center;place-items:center;gap:4px;padding:6px 3px;font-size:.72rem;display:grid}.number-actions button:last-child,.player-toolbar button:last-child{border-right:0}.number-actions button.active{color:var(--sage);background:var(--sage-soft);box-shadow:inset 0 0 0 1px var(--sage)}.player-toolbar button:nth-child(2),.player-toolbar button:nth-child(3){color:var(--accent)}.number-actions svg,.player-toolbar svg{width:25px;height:25px}.player-toolbar button:disabled{color:color-mix(in srgb, var(--muted) 48%, transparent);cursor:default}.modal-backdrop{z-index:50;background:#10161980;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.dialog{border:1px solid var(--line);background:var(--surface);border-radius:14px;width:min(100%,440px);max-height:82vh;padding:26px;overflow:auto;box-shadow:0 24px 70px #00000040}.dialog h2{font-size:1.8rem}.dialog h3{text-transform:uppercase;letter-spacing:.07em;margin:22px 0 9px;font-size:.9rem}.dialog p,.dialog li{color:var(--muted);line-height:1.6}.dialog ol{margin-bottom:24px;padding-left:22px}.rule-example{border:1px solid var(--line);background:color-mix(in srgb, var(--paper) 68%, var(--surface));border-radius:10px;justify-items:center;gap:9px;margin:0;padding:14px;display:grid}.rule-example-state{justify-items:center;gap:7px;width:100%;display:grid}.rule-example-state>strong{color:var(--muted);letter-spacing:.1em;text-transform:uppercase;font-size:.72rem;font-weight:800}.rule-example-board{width:min(100%,220px)}.rule-example-board .puzzle-board{width:100%}.rule-example-board .board-cell{cursor:default}.rule-example-arrow{width:26px;height:26px;color:var(--sage);background:var(--sage-soft);border-radius:50%;place-items:center;font-size:1rem;font-weight:800;display:grid}.rule-example-sudoku .rule-example-board{width:min(100%,235px)}.player-settings .primary-button{margin-top:24px}.setting-toggle{cursor:pointer;align-items:center;gap:12px;min-height:50px;display:flex}.setting-toggle input{width:20px;height:20px;accent-color:var(--accent);flex:none}.setting-toggle span{gap:3px;display:grid}.setting-toggle small{color:var(--muted);line-height:1.4}.segmented.two{grid-template-columns:repeat(2,1fr)}.dialog-actions{grid-template-columns:1fr 1fr;gap:10px;margin-top:22px;display:grid}.install-backdrop{padding-top:max(18px, env(safe-area-inset-top));padding-bottom:max(18px, env(safe-area-inset-bottom))}.install-dialog{width:min(100%,480px);padding:clamp(20px,5vw,30px)}.install-heading{grid-template-columns:72px 1fr;align-items:center;gap:16px;margin-bottom:18px;display:grid}.install-heading img{border-radius:17px;width:72px;height:72px;box-shadow:0 8px 22px #2b211724}.install-heading span{color:var(--accent);letter-spacing:.08em;text-transform:uppercase;margin-bottom:3px;font-size:.72rem;font-weight:800;display:block}.install-heading h2{margin:0;line-height:1.05}.install-steps{counter-reset:install-step;gap:13px;margin:20px 0;list-style:none;display:grid;padding:0!important}.install-steps li{counter-increment:install-step;align-content:center;gap:2px;min-height:38px;padding-left:49px;display:grid;position:relative}.install-steps li:before{content:counter(install-step);border:1px solid var(--sage);width:36px;height:36px;color:var(--sage);border-radius:50%;place-items:center;font-family:Georgia,serif;font-size:1.05rem;font-weight:700;display:grid;position:absolute;top:0;left:0}.install-steps b{font-size:.92rem}.install-steps span{color:var(--muted);font-size:.8rem;line-height:1.35}.install-dismiss{border:1px solid var(--line);background:color-mix(in srgb, var(--sage-soft) 38%, transparent);cursor:pointer;border-radius:9px;align-items:center;gap:11px;min-height:58px;margin:3px 0 18px;padding:10px 12px;display:flex}.install-dismiss input{width:21px;height:21px;accent-color:var(--accent);flex:none}.install-dismiss span{gap:2px;display:grid}.install-dismiss b{font-size:.88rem}.install-dismiss small{color:var(--muted);font-size:.75rem;line-height:1.3}.stats-summary{grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:28px;display:grid}.stats-summary div{border-top:2px solid var(--accent);background:var(--surface);min-width:0;padding:17px 10px}.stats-summary strong{font-family:Georgia,serif;font-size:clamp(1.35rem,6vw,2.2rem);display:block}.stats-summary span{color:var(--muted);font-size:.75rem;display:block}.stats-list{border-top:1px solid var(--line)}.stats-list>div{border-bottom:1px solid var(--line);grid-template-columns:minmax(110px,1.4fr) 1fr 52px;align-items:center;gap:12px;min-height:58px;font-size:.88rem;display:grid}.stats-list strong{text-align:right;font-size:.8rem}.mini-track{height:5px}.mini-track i{background:var(--sage)}.data-note,.privacy-note{color:var(--muted);margin-top:22px;font-size:.86rem;line-height:1.55}.settings-section{border-top:1px solid var(--line);padding:22px 0}.settings-section h2{text-transform:uppercase;letter-spacing:.08em;margin-bottom:14px;font-family:inherit;font-size:.92rem}.settings-section p{color:var(--muted);margin:12px 0 0;font-size:.84rem;line-height:1.5}.settings-section label{cursor:pointer;align-items:center;gap:12px;min-height:48px;display:flex}.settings-section input{accent-color:var(--accent);width:19px;height:19px}.settings-section button+button{margin-top:10px}.segmented{background:var(--surface);border:1px solid var(--line);border-radius:9px;grid-template-columns:repeat(3,1fr);padding:4px;display:grid}.segmented button{cursor:pointer;background:0 0;border:0;border-radius:6px;min-height:42px}.segmented button.active{color:#fff;background:var(--accent);font-weight:700}.state-page{text-align:center;place-content:center;place-items:center;min-height:100vh;padding:30px;display:grid}.state-page h1{font-size:3rem}.loading-mark{border:2px solid var(--accent);width:68px;height:68px;color:var(--accent);place-items:center;font:2.5rem Georgia,serif;animation:1.2s ease-in-out infinite alternate pulse;display:grid}@keyframes pulse{to{opacity:.6;transform:scale(.94)}}@media (min-width:761px){body{background:color-mix(in srgb, var(--paper) 88%, var(--ink))}.app-shell,.player-screen{box-shadow:0 0 60px #1414121a}.home-screen{padding-left:54px;padding-right:54px}}@media (max-width:420px){.screen{padding-left:16px;padding-right:16px}.progress-panel{padding:18px}.progress-panel h2{margin-bottom:3px;font-size:1.35rem}.progress-total{margin-bottom:10px}.progress-total strong{font-size:3rem}.progress-total span{font-size:1.2rem}.progress-track{margin-bottom:14px}.progress-panel .primary-button{min-height:48px}.library-preview{margin-top:24px}.kind-row{grid-template-columns:52px 1fr 24px;gap:9px;min-height:70px;padding-top:8px;padding-bottom:8px}.kind-mark{width:47px;height:47px}.kind-copy strong{font-size:1.12rem}.player-screen{padding-left:8px;padding-right:8px}.player-header h1{font-size:1.22rem}.player-header-actions .icon-button{width:36px;height:40px}.player-header-actions svg{width:21px;height:21px}.number-actions button,.player-toolbar button{min-height:56px}.install-dialog{max-height:calc(100vh - 28px - env(safe-area-inset-top) - env(safe-area-inset-bottom))}.install-heading{grid-template-columns:58px 1fr;gap:13px}.install-heading img{border-radius:14px;width:58px;height:58px}.install-heading h2{font-size:1.55rem}.install-dialog>p{font-size:.86rem;line-height:1.45}.install-steps{gap:10px;margin:16px 0}}@media (max-width:760px) and (max-height:760px){.numeric-player .board-stage{max-width:min(650px,max(280px,100dvh - 368px))}}