:root{--color-bg:#f4f1ea;--color-surface:#faf8f2;--color-text:#2c4a6b;--color-text-soft:#4a6385;--color-text-faint:color-mix(in srgb, var(--color-text) 40%, transparent);--color-accent:#b8412a;--color-border:color-mix(in srgb, var(--color-text) 12%, transparent);--color-border-strong:color-mix(in srgb, var(--color-text) 30%, transparent);--color-success:#2e7f45;--color-warning:#f05d3d;--color-error:#e2001a;--color-info:#4ecdea;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:32px;--space-xl:64px;--font-display:"Newsreader", Georgia, serif;--font-mono:"JetBrains Mono", ui-monospace, monospace;--text-xs:.65rem;--text-sm:.75rem;--text-base:.875rem;--text-md:1rem;--text-lg:1.125rem;--text-xl:1.5rem;--text-2xl:clamp(1.75rem, 4vw, 2.75rem);--text-3xl:clamp(2rem, 6vw, 3.5rem);--radius-sm:2px;--radius-md:4px;--radius-lg:8px;--radius-pill:999px;--t-fast:.15s cubic-bezier(.2, 0, 0, 1);--t-med:.25s cubic-bezier(.2, 0, 0, 1);--bg-overlay:color-mix(in srgb, var(--color-bg) 88%, transparent);--bg-modal-backdrop:color-mix(in srgb, var(--color-text) 35%, transparent)}[data-theme=dark]{--color-bg:#1a2638;--color-surface:#243149;--color-text:#b8c4d9;--color-text-soft:#9baac4;--color-text-faint:#8295ac;--color-accent:#726791;--color-border:#3a4a66;--color-border-strong:#4a6385;--color-success:#8bf2c1;--color-warning:#fbee3b;--color-error:#ff7878;--color-info:#4ecdea}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}html.game-page,body.game-page{overflow:hidden}body{font-family:var(--font-display);background:var(--color-bg);color:var(--color-text);font-size:var(--text-md);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color var(--t-med), color var(--t-med);overscroll-behavior:none;line-height:1.5}button{font-family:inherit;font-size:inherit;cursor:pointer;color:inherit;background:0 0;border:none;padding:0}a{color:inherit;text-decoration:none}[hidden],.hidden{display:none!important}.app{max-width:960px;min-height:100dvh;padding-top:max(var(--space-md), env(safe-area-inset-top));padding-right:max(var(--space-md), env(safe-area-inset-right));padding-bottom:max(var(--space-md), env(safe-area-inset-bottom));padding-left:max(var(--space-md), env(safe-area-inset-left));gap:var(--space-md);flex-direction:column;margin:0 auto;display:flex}.app--fixed{height:100dvh;min-height:0}.app--narrow{max-width:720px}.app--wide{max-width:1440px}.grid-12{gap:var(--space-md);grid-template-columns:repeat(12,minmax(0,1fr));display:grid}.grid-12--tight{gap:var(--space-sm)}.grid-12--loose{gap:var(--space-lg)}.span-1{grid-column:span 1}.span-2{grid-column:span 2}.span-3{grid-column:span 3}.span-4{grid-column:span 4}.span-5{grid-column:span 5}.span-6{grid-column:span 6}.span-7{grid-column:span 7}.span-8{grid-column:span 8}.span-9{grid-column:span 9}.span-10{grid-column:span 10}.span-11{grid-column:span 11}.span-12{grid-column:span 12}@media (width<=768px){[class*=span-]{grid-column:span 12}}.header{padding-bottom:var(--space-md);border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:baseline;display:flex}.header-left{align-items:baseline;gap:var(--space-md);display:flex}.header-right{gap:var(--space-md);align-items:center;display:flex}.header-fav-btn{border:1px solid var(--color-border);border-radius:var(--radius-md,6px);width:36px;height:36px;color:var(--color-text-soft);cursor:pointer;background:0 0;justify-content:center;align-items:center;padding:0;transition:color .15s,border-color .15s,background .15s;display:inline-flex}.header-fav-btn:hover{color:var(--color-text);border-color:var(--color-border-strong);background:var(--color-surface)}.header-fav-btn svg{fill:none;width:18px;height:18px;transition:fill .15s}.header-fav-btn[aria-pressed=true]{color:var(--color-text);border-color:var(--color-text);background:var(--color-surface)}.header-fav-btn[aria-pressed=true] svg{fill:currentColor}.theme-toggle{border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;width:36px;height:36px;color:var(--color-text-soft);transition:color var(--t-fast), border-color var(--t-fast);background:0 0;justify-content:center;align-items:center;padding:0;display:inline-flex}.theme-toggle:hover{color:var(--color-text);border-color:var(--color-border-strong)}.theme-toggle svg{width:16px;height:16px;display:block}.theme-toggle .icon-sun{display:none}.theme-toggle .icon-moon,[data-theme=dark] .theme-toggle .icon-sun{display:block}[data-theme=dark] .theme-toggle .icon-moon{display:none}.theme-toggle--fixed{top:var(--space-lg);right:var(--space-lg);background:var(--color-surface);z-index:100;position:fixed}.site-title{font-size:var(--text-base);letter-spacing:-.01em;color:var(--color-text-soft);font-weight:500}.site-title:before{content:"← ";color:var(--color-text-faint)}.game-title,.section-title{font-size:var(--text-lg);letter-spacing:-.02em;font-weight:600}.burger{border:1px solid var(--color-border);border-radius:var(--radius-pill);width:36px;height:36px;color:var(--color-text-soft);cursor:pointer;transition:border-color var(--t-fast), color var(--t-fast);background:0 0;justify-content:center;align-items:center;padding:0;display:inline-flex}.burger:hover{border-color:var(--color-text);color:var(--color-text)}.burger:focus-visible{outline:2px solid var(--color-text);outline-offset:2px}.burger-lines{width:16px;height:12px;position:relative}.burger-lines span{width:100%;height:1.5px;transition:transform var(--t-med), opacity var(--t-fast), top var(--t-med);background:currentColor;position:absolute;left:0}.burger-lines span:first-child{top:0}.burger-lines span:nth-child(2){top:5px}.burger-lines span:nth-child(3){top:10px}.burger.is-open .burger-lines span:first-child{top:5px;transform:rotate(45deg)}.burger.is-open .burger-lines span:nth-child(2){opacity:0}.burger.is-open .burger-lines span:nth-child(3){top:5px;transform:rotate(-45deg)}.burger--fixed{top:var(--space-lg);left:var(--space-lg);background:var(--color-surface);z-index:200;position:fixed}.menu-overlay{pointer-events:none;transition:background var(--t-med);z-index:150;background:0 0;position:fixed;inset:0}.menu-overlay.is-open{background:var(--bg-modal-backdrop);pointer-events:auto}.menu-panel{background:var(--color-surface);border-right:1px solid var(--color-border);width:320px;max-width:85vw;height:100vh;transition:transform var(--t-med);z-index:175;padding:96px var(--space-lg) var(--space-lg);flex-direction:column;display:flex;position:fixed;top:0;left:0;overflow-y:auto;transform:translate(-100%)}.menu-panel.is-open{transform:translate(0)}.menu-section-label{font-family:var(--font-mono);font-size:var(--text-xs);letter-spacing:.18em;text-transform:uppercase;color:var(--color-text-faint);margin:0 0 var(--space-sm);font-weight:500}.menu-section-label--secondary{margin-top:var(--space-lg)}.menu-nav{border-top:1px solid var(--color-border);flex-direction:column;display:flex}.menu-link{font-family:var(--font-display);font-size:var(--text-lg);letter-spacing:-.01em;color:var(--color-text-soft);text-align:left;border:none;border-bottom:1px solid var(--color-border);cursor:pointer;transition:color var(--t-fast), padding-left var(--t-med);background:0 0;padding:14px 0;font-weight:500;text-decoration:none}.menu-link:hover{color:var(--color-text);padding-left:6px}.menu-link:focus-visible{outline:2px solid var(--color-text);outline-offset:2px}.menu-footer{padding-top:var(--space-lg);font-family:var(--font-mono);font-size:var(--text-xs);letter-spacing:.12em;text-transform:uppercase;color:var(--color-text-faint);margin-top:auto}.btn,.btn-primary{font-family:var(--font-display);font-size:var(--text-md);padding:var(--space-sm) var(--space-lg);border:1px solid var(--color-text);border-radius:var(--radius-sm);background:var(--color-text);color:var(--color-bg);transition:background-color var(--t-fast), color var(--t-fast), border-color var(--t-fast);cursor:pointer;font-weight:500}.btn:hover,.btn-primary:hover{background:var(--color-accent);border-color:var(--color-accent);color:var(--color-bg)}.btn-ghost{font-family:var(--font-mono);font-size:var(--text-sm);text-transform:uppercase;letter-spacing:.1em;padding:var(--space-sm) var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text);transition:border-color var(--t-fast), color var(--t-fast), background-color var(--t-fast);cursor:pointer;background:0 0}.btn-ghost:disabled{opacity:.35;cursor:not-allowed}.btn-ghost:hover:not(:disabled){border-color:var(--color-border-strong);color:var(--color-text)}.btn.btn-ghost{font-family:var(--font-display);font-size:var(--text-md);padding:var(--space-sm) var(--space-lg);text-transform:none;letter-spacing:normal}.btn-small{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;padding:var(--space-xs) var(--space-sm);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text);cursor:pointer;transition:border-color var(--t-fast), color var(--t-fast);background:0 0;font-size:.7rem}.btn-small:hover{border-color:var(--color-border-strong)}.modal-backdrop{padding:var(--space-md);background:var(--bg-modal-backdrop);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{width:min(100%,520px);max-height:min(90vh,720px);padding:var(--space-lg);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg);color:var(--color-text);box-shadow:0 20px 60px color-mix(in srgb, var(--color-text) 18%, transparent);overflow-y:auto}.modal-title{font-size:var(--text-xl);letter-spacing:-.03em;margin-bottom:var(--space-md);font-weight:700;line-height:1.1}.modal-text{color:var(--color-text-soft);margin-bottom:var(--space-md)}.modal-actions{justify-content:flex-end;gap:var(--space-sm);margin-top:var(--space-lg);flex-wrap:wrap;display:flex}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.segmented-control{background:var(--color-surface);border:1px solid var(--color-border);border-radius:6px;align-items:stretch;gap:2px;padding:2px;display:inline-flex}.segmented-control input[type=radio]{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.segmented-control label{padding:var(--space-xs) var(--space-sm);font-family:var(--font-body,var(--font-display));font-size:var(--text-sm);color:var(--color-text-soft);cursor:pointer;-webkit-user-select:none;user-select:none;text-align:center;white-space:nowrap;transition:background var(--t-fast,.12s) ease, color var(--t-fast,.12s) ease;background:0 0;border-radius:4px;flex:1 1 0;font-weight:500}.segmented-control label:hover{color:var(--color-text);background:var(--color-bg)}.segmented-control input[type=radio]:checked+label{background:var(--color-bg);color:var(--color-text);box-shadow:0 1px 2px #0000000a, inset 0 0 0 1px var(--color-border);font-weight:600}.segmented-control input[type=radio]:focus-visible+label{outline:2px solid var(--color-accent);outline-offset:1px}.segmented-control.is-block{width:100%;display:flex}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (width<=700px){.app{padding-top:max(var(--space-sm), env(safe-area-inset-top));padding-right:max(var(--space-sm), env(safe-area-inset-right));padding-bottom:max(var(--space-sm), env(safe-area-inset-bottom));padding-left:max(var(--space-sm), env(safe-area-inset-left))}.header{align-items:flex-start;gap:var(--space-sm)}.header-left{gap:var(--space-xs);flex-direction:column}.header-right{gap:var(--space-sm)}}:root{--font-display:"Space Grotesk", system-ui, sans-serif;--font-mono:"Space Mono", ui-monospace, monospace;--bleu-ciel:#a9cdec;--indigo:#223d7c;--vert-clair:#add036;--vert-fonce:#2e7f45;--orange:#f05d3d;--jaune:#fbee3b;--rouge:#e2001a;--rose-vif:#ed3f96;--violet:#726791;--rose-pale:#fac6cd;--marron:#4f3015;--saumon:#ff7878;--vert-marine:#8bf2c1;--bleu-vif:#4ecdea;--gris:#808184;--beige:#eed9c4;--sudoku:#4f6f8f}.start-btn{font-family:var(--font-display);padding:var(--space-sm) var(--space-lg);border:1px solid var(--color-text);border-radius:var(--radius-sm);background:var(--color-text);color:var(--color-bg);cursor:pointer;transition:background-color var(--t-fast), color var(--t-fast), border-color var(--t-fast);font-size:1rem;font-weight:500}.start-btn:hover{background:var(--color-accent);border-color:var(--color-accent);color:var(--color-bg)}.secondary-btn{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;padding:var(--space-sm) var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text);cursor:pointer;transition:border-color var(--t-fast), color var(--t-fast), background-color var(--t-fast);background:0 0;font-size:.75rem}.secondary-btn:disabled{opacity:.35;cursor:not-allowed}.secondary-btn:hover:not(:disabled){color:var(--color-text);border-color:var(--color-border-strong);background:0 0}.small-btn{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;padding:var(--space-xs) var(--space-sm);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text);cursor:pointer;transition:border-color var(--t-fast), color var(--t-fast);background:0 0;font-size:.7rem}.small-btn:hover{border-color:var(--color-border-strong)}.intro-secondary-btn{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;margin-top:var(--space-md);padding:var(--space-sm) var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-soft);cursor:pointer;transition:border-color var(--t-fast), color var(--t-fast);background:0 0;font-size:.75rem}.intro-secondary-btn:hover{border-color:var(--color-border-strong);color:var(--color-text)}@keyframes fadeUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.screen{padding:var(--space-lg);text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;display:flex}.screen--scroll{-webkit-overflow-scrolling:touch;overflow-y:auto}.screen>*{animation:.4s cubic-bezier(.2,0,0,1) backwards fadeUp;animation-delay:calc(var(--idx,0) * 80ms)}.intro-title{font-family:var(--font-display);letter-spacing:-.04em;margin-bottom:var(--space-md);font-size:clamp(2rem,6vw,3.5rem);font-weight:700;line-height:1}.intro-subtitle{font-family:var(--font-display);color:var(--color-text-soft);max-width:560px;margin-bottom:var(--space-lg);font-size:1rem;font-weight:400}.intro-meta{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;color:var(--color-text-faint);margin-bottom:var(--space-xl);font-size:.75rem}.intro-meta span:not(:last-child):after{content:" · ";margin:0 var(--space-xs)}.intro-actions{gap:var(--space-md);margin-bottom:var(--space-md);flex-wrap:wrap;justify-content:center;display:flex}.intro-link{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;color:var(--color-text-soft);border-bottom:1px solid var(--color-border);transition:color var(--t-fast), border-color var(--t-fast);font-size:.75rem;text-decoration:none}.intro-link:hover{color:var(--color-text);border-color:var(--color-border-strong)}.controls-hint{font-family:var(--font-mono);color:var(--color-text-faint);margin-top:var(--space-md);text-transform:uppercase;letter-spacing:.1em;font-size:.7rem;line-height:1.8}.high-score{font-family:var(--font-mono);color:var(--color-text-soft);margin-top:var(--space-lg);text-transform:uppercase;letter-spacing:.1em;font-size:.75rem}.high-score-value{color:var(--color-text);font-weight:700}.intro-stats{gap:var(--space-sm);margin-top:var(--space-md);flex-wrap:wrap;justify-content:center;display:flex}.stat-card{min-width:96px;padding:var(--space-sm) var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:0 0}.stat-label{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;color:var(--color-text-faint);font-size:.65rem;display:block}.stat-value{font-family:var(--font-mono);color:var(--color-text);font-size:1rem;font-weight:700;display:block}.game-screen{gap:var(--space-sm);flex-direction:column;flex:1;min-height:0;display:flex}.game-screen--centered{align-items:center;overflow-y:auto}.hud{gap:var(--space-md);font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;color:var(--color-text-soft);padding:0 var(--space-xs);border-bottom:1px solid var(--color-border);flex-wrap:wrap;justify-content:space-between;align-items:baseline;font-size:.75rem;display:flex}.hud-item{white-space:nowrap;flex-direction:column;gap:2px;display:flex}.hud-item .label{color:var(--color-text-faint);margin-right:var(--space-xs);font-size:.65rem}.hud-item .value{color:var(--color-text);font-size:1rem;font-weight:700}.canvas-wrap{flex:1;justify-content:center;align-items:center;min-height:0;display:flex;position:relative}.overlay{justify-content:center;align-items:center;gap:var(--space-md);padding:var(--space-lg);text-align:center;background:var(--bg-overlay);-webkit-backdrop-filter:blur(4px);z-index:10;flex-direction:column;display:flex;position:absolute;inset:0}[data-theme=dark] .overlay{background:color-mix(in srgb, var(--color-bg) 88%, transparent)}.overlay-title{font-family:var(--font-display);letter-spacing:-.04em;text-align:center;font-size:clamp(1.75rem,4vw,2.75rem);font-weight:700;line-height:1}.overlay-text{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;color:var(--color-text-soft);text-align:center;max-width:360px;font-size:.75rem}.overlay-actions{gap:var(--space-md);flex-wrap:wrap;justify-content:center;display:flex}.mode-row,.level-row{gap:var(--space-sm);margin-bottom:var(--space-md);flex-wrap:wrap;justify-content:center;display:flex}.mode-btn,.level-btn{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;padding:var(--space-sm) var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-soft);cursor:pointer;transition:border-color var(--t-fast), color var(--t-fast), background-color var(--t-fast);background:0 0;font-size:.75rem}.mode-btn:hover,.level-btn:hover{border-color:var(--color-border-strong);color:var(--color-text)}.mode-btn.active,.level-btn.active,.mode-btn[aria-pressed=true],.level-btn[aria-pressed=true]{border-color:var(--color-text);color:var(--color-text)}.level-section{gap:var(--space-sm);margin:var(--space-md) 0;flex-direction:column;width:100%;max-width:480px;display:flex}.level-label{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.15em;color:var(--color-text-faint);margin-bottom:var(--space-xs);font-size:.7rem}.level-grid{gap:var(--space-sm);width:100%;max-width:720px;margin-top:var(--space-lg);grid-template-columns:repeat(auto-fit,minmax(140px,1fr));display:grid}.touch-controls{gap:var(--space-sm);padding-top:var(--space-sm);justify-content:center;align-items:center;display:none}@media (hover:none) and (pointer:coarse){.touch-controls{width:100%;display:flex}}.dpad{--dpad-size:56px;grid-template-columns:repeat(3, var(--dpad-size));grid-template-rows:repeat(3, var(--dpad-size));gap:4px;display:grid}.touch-btn.up{grid-area:1/2}.touch-btn.left{grid-area:2/1}.touch-btn.right{grid-area:2/3}.touch-btn.down{grid-area:3/2}.touch-btn{min-width:48px;min-height:44px;padding:var(--space-sm) var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-family:var(--font-mono);color:var(--color-text-soft);cursor:pointer;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;transition:background-color var(--t-fast), border-color var(--t-fast), color var(--t-fast);background:0 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