@import"https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600;700&family=Quicksand:wght@300;400;500;600;700&display=swap";:root{--color-void: #0a0a12;--color-void-mid: #12121f;--color-void-light: #1a1a2e;--color-lumina: #f0b866;--color-lumina-bright: #ffd699;--color-lumina-deep: #c49545;--color-lumina-glow: rgba(240, 184, 102, .4);--color-lumina-subtle: rgba(240, 184, 102, .1);--color-umbra: #7fa8c9;--color-umbra-bright: #a8d4f0;--color-umbra-deep: #5a8aad;--color-umbra-glow: rgba(127, 168, 201, .4);--color-umbra-subtle: rgba(127, 168, 201, .1);--color-text-primary: #f5f0eb;--color-text-secondary: #a0a0b0;--color-text-muted: #6a6a7a;--color-success: #7ae8b0;--color-success-glow: rgba(122, 232, 176, .3);--color-error: #e85d5d;--color-error-glow: rgba(232, 93, 93, .3);--color-warning: #e8c85d;--color-bg-primary: var(--color-void);--color-bg-secondary: var(--color-void-mid);--color-bg-tertiary: var(--color-void-light);--color-border: rgba(255, 255, 255, .1);--color-border-focus: var(--color-lumina);--color-world-a: var(--color-lumina);--color-world-b: var(--color-umbra);--space-2xs: 4px;--space-xs: 8px;--space-sm: 12px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--space-3xl: 64px;--font-display: "Cinzel", serif;--font-body: "Quicksand", sans-serif;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-full: 9999px;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .4s ease;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .5);--shadow-glow-a: 0 0 20px var(--color-lumina-glow);--shadow-glow-b: 0 0 20px var(--color-umbra-glow);--ease-out-expo: cubic-bezier(.16, 1, .3, 1);--ease-out-back: cubic-bezier(.34, 1.56, .64, 1);--ease-in-out-sine: cubic-bezier(.37, 0, .63, 1);--z-background: 0;--z-game: 10;--z-ui: 20;--z-overlay: 30;--z-modal: 40}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;height:100%;overflow:hidden}body{font-family:var(--font-body);font-weight:500;color:var(--color-text-primary);background:var(--color-void);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app{width:100%;height:100%;display:flex;flex-direction:column;position:relative;isolation:isolate;background:radial-gradient(ellipse 80% 50% at 50% 0%,var(--color-lumina-subtle) 0%,transparent 50%),radial-gradient(ellipse 60% 40% at 80% 100%,var(--color-umbra-subtle) 0%,transparent 50%),radial-gradient(ellipse 100% 100% at 50% 50%,var(--color-void-mid) 0%,var(--color-void) 100%)}.app:before{content:"";position:absolute;inset:-200px;z-index:-1;background-image:radial-gradient(2px 2px at 10% 15%,#fff,transparent),radial-gradient(2px 2px at 25% 35%,#f0b866,transparent),radial-gradient(3px 3px at 45% 8%,#fff,transparent),radial-gradient(2px 2px at 60% 42%,#7fa8c9,transparent),radial-gradient(3px 3px at 75% 18%,#fff,transparent),radial-gradient(2px 2px at 88% 55%,#f0b866,transparent),radial-gradient(2px 2px at 5% 65%,#fff,transparent),radial-gradient(2px 2px at 18% 78%,#7fa8c9,transparent),radial-gradient(2px 2px at 32% 92%,#fff,transparent),radial-gradient(1.5px 1.5px at 52% 68%,#fff,transparent),radial-gradient(2px 2px at 70% 85%,#f0b866,transparent),radial-gradient(2px 2px at 92% 72%,#fff,transparent),radial-gradient(1px 1px at 8% 45%,#fff,transparent),radial-gradient(1px 1px at 38% 52%,#fff,transparent),radial-gradient(1px 1px at 55% 25%,#fff,transparent),radial-gradient(1px 1px at 82% 38%,#fff,transparent),radial-gradient(1px 1px at 95% 12%,#fff,transparent),radial-gradient(1px 1px at 15% 88%,#fff,transparent);background-size:250px 250px;animation:drift 120s linear infinite;pointer-events:none}.app:after{content:"";position:absolute;inset:-200px;z-index:2;background-image:radial-gradient(2px 2px at 12% 22%,#fff,transparent),radial-gradient(1.5px 1.5px at 28% 58%,#fff,transparent),radial-gradient(2px 2px at 42% 12%,#fff,transparent),radial-gradient(1.5px 1.5px at 65% 75%,#fff,transparent),radial-gradient(1px 1px at 78% 32%,#fff,transparent),radial-gradient(2px 2px at 95% 88%,#fff,transparent),radial-gradient(1px 1px at 3% 3%,#fff,transparent),radial-gradient(1.5px 1.5px at 50% 50%,#fff,transparent),radial-gradient(1px 1px at 85% 10%,#fff,transparent);background-size:350px 350px;animation:drift 180s linear infinite reverse;pointer-events:none}@keyframes drift{0%{transform:translate(0)}to{transform:translate(-200px,-200px)}}@keyframes screen-fade-in{0%{opacity:0}to{opacity:1}}@keyframes screen-slide-up{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes screen-slide-down{0%{opacity:0;transform:translateY(-30px)}to{opacity:1;transform:translateY(0)}}@keyframes screen-zoom-in{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.screen-enter{animation:screen-fade-in .3s ease-out forwards}.screen-enter-up{animation:screen-slide-up .3s ease-out forwards}.screen-enter-down{animation:screen-slide-down .3s ease-out forwards}.screen-enter-zoom{animation:screen-zoom-in .3s ease-out forwards}@keyframes undo-flash{0%{filter:brightness(1)}50%{filter:brightness(1.3) hue-rotate(-10deg)}to{filter:brightness(1)}}.undo-flash{animation:undo-flash .2s ease-out}@keyframes win-pulse{0%,to{filter:brightness(1)}50%{filter:brightness(1.2) saturate(1.2)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.screen-enter,.screen-enter-up,.screen-enter-down,.screen-enter-zoom,.undo-flash{animation:none;opacity:1;transform:none}.title{animation:none}}.main-menu{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-lg);padding:var(--space-2xl);position:relative;z-index:10}.title{font-family:var(--font-display);font-size:clamp(2rem,6vw,3.5rem);font-weight:600;letter-spacing:.15em;text-transform:uppercase;background:linear-gradient(135deg,var(--color-lumina-bright) 0%,var(--color-lumina) 30%,var(--color-umbra) 70%,var(--color-umbra-bright) 100%);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;filter:drop-shadow(0 0 10px var(--color-lumina)) drop-shadow(0 0 30px var(--color-lumina-glow)) drop-shadow(0 0 60px var(--color-umbra-glow)) drop-shadow(0 0 100px var(--color-umbra-glow));animation:title-glow 4s ease-in-out infinite alternate;text-align:center;position:relative}.title:before{content:attr(data-text);position:absolute;left:0;top:0;width:100%;height:100%;background:linear-gradient(135deg,var(--color-lumina-bright) 0%,var(--color-lumina) 30%,var(--color-umbra) 70%,var(--color-umbra-bright) 100%);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;filter:blur(20px);opacity:.5;z-index:-1;pointer-events:none}@keyframes title-glow{0%{filter:drop-shadow(0 0 10px var(--color-lumina)) drop-shadow(0 0 30px var(--color-lumina-glow)) drop-shadow(0 0 60px var(--color-umbra-glow)) drop-shadow(0 0 100px var(--color-umbra-glow))}to{filter:drop-shadow(0 0 15px var(--color-umbra)) drop-shadow(0 0 40px var(--color-umbra-glow)) drop-shadow(0 0 80px var(--color-lumina-glow)) drop-shadow(0 0 120px var(--color-lumina-glow))}}.tagline{font-family:var(--font-body);font-size:clamp(.875rem,2vw,1.125rem);font-weight:400;color:var(--color-text-secondary);text-align:center;letter-spacing:.05em;max-width:400px;line-height:1.6;opacity:0;animation:fade-up 1s var(--ease-out-expo) .3s forwards}@keyframes fade-up{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.menu-buttons{display:flex;flex-direction:column;gap:var(--space-md);align-items:center;margin-top:var(--space-md);animation:fade-up 1s var(--ease-out-expo) .5s both}.menu-buttons .btn{min-width:200px}.btn{font-family:var(--font-body);font-weight:600;letter-spacing:.08em;border:none;cursor:pointer;position:relative;overflow:hidden;transition:all .4s var(--ease-out-expo)}.btn:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,transparent 0%,rgba(255,255,255,.1) 50%,transparent 100%);transform:translate(-100%);transition:transform .6s var(--ease-out-expo)}.btn:hover:before{transform:translate(100%)}.btn:focus-visible{outline:2px solid var(--color-border-focus);outline-offset:3px}.btn:disabled{opacity:.5;cursor:not-allowed}.btn:disabled:hover:before{transform:translate(-100%)}.btn-primary{padding:var(--space-md) var(--space-2xl);font-size:1rem;color:var(--color-void);background:linear-gradient(135deg,var(--color-lumina) 0%,var(--color-lumina-bright) 50%,var(--color-umbra-bright) 100%);background-size:200% 200%;border-radius:50px;box-shadow:0 4px 20px var(--color-lumina-glow),0 0 60px var(--color-umbra-glow),inset 0 1px #ffffff4d;animation:gradient-shift 6s ease-in-out infinite}@keyframes gradient-shift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.btn-primary:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 8px 30px var(--color-lumina-glow),0 0 80px var(--color-umbra-glow),inset 0 1px #fff6}.btn-primary:active{transform:translateY(0) scale(.98)}.btn-small{padding:var(--space-xs) var(--space-md);font-size:.75rem;text-transform:uppercase;color:var(--color-text-primary);background:#ffffff0d;border:1px solid rgba(255,255,255,.15);border-radius:6px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.btn-small:hover{background:#ffffff1a;border-color:#ffffff4d;box-shadow:0 0 20px #ffffff1a}.btn-small:active{transform:scale(.96)}.btn-small.btn-active{background:#e8b86d33;border-color:var(--color-world-a);color:var(--color-world-a);box-shadow:0 0 12px #e8b86d4d}.btn-small.btn-icon{padding:var(--space-xs);display:flex;align-items:center;justify-content:center;min-width:36px;height:36px}.btn-small.btn-icon svg{width:18px;height:18px;flex-shrink:0}@media(max-width:480px){.btn-small.btn-icon{min-width:32px;height:32px;padding:var(--space-2xs)}.btn-small.btn-icon svg{width:16px;height:16px}}.game-container{flex:1;display:flex;flex-direction:column;position:relative;z-index:10;overflow:hidden}.game-header{display:flex;justify-content:space-between;align-items:center;padding:var(--space-sm) var(--space-md);background:#0006;border-bottom:1px solid rgba(255,255,255,.08);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);flex-shrink:0;z-index:10;animation:slide-down .5s var(--ease-out-expo)}@keyframes slide-down{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.header-left{display:flex;gap:var(--space-xs);min-width:0;flex-shrink:1}.header-right{display:flex;align-items:center;gap:var(--space-sm);flex-shrink:0;overflow:visible}.puzzle-title-bar{text-align:center;padding:var(--space-xs) var(--space-md);background:#0000004d;border-bottom:1px solid 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var(--color-lumina-glow);border-radius:6px;font-variant-numeric:tabular-nums;letter-spacing:.03em;white-space:nowrap;animation:score-pop .3s var(--ease-out-back)}.score-icon{font-size:.9rem;color:var(--color-lumina);text-shadow:0 0 6px var(--color-lumina-glow)}@keyframes score-pop{0%{transform:scale(1)}50%{transform:scale(1.1)}to{transform:scale(1)}}.world-labels{position:absolute;left:var(--space-xs);top:0;bottom:0;z-index:10;display:flex;flex-direction:column;justify-content:space-around;align-items:flex-start;pointer-events:none;animation:fade-up .8s var(--ease-out-expo) .2s both;padding:var(--space-xl) 0}.world-label{padding:var(--space-xs) var(--space-2xs);font-family:var(--font-display);font-size:.6rem;font-weight:500;text-transform:uppercase;letter-spacing:.12em;background:#000000b3;border-radius:4px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);writing-mode:vertical-rl;text-orientation:mixed;transform:rotate(180deg)}.world-label-a{color:var(--color-lumina);border:1px solid var(--color-lumina-glow);box-shadow:0 0 12px var(--color-lumina-glow)}.world-label-b{color:var(--color-umbra);border:1px solid var(--color-umbra-glow);box-shadow:0 0 12px var(--color-umbra-glow)}.controls-hint{flex-shrink:0;text-align:center;padding:var(--space-xs) var(--space-md);font-family:var(--font-body);font-size:.7rem;font-weight:400;color:var(--color-text-muted);background:#0000004d;border-top:1px solid rgba(255,255,255,.05);white-space:nowrap;pointer-events:none;letter-spacing:.05em;animation:pulse-subtle 3s ease-in-out infinite}.controls-keyboard{display:inline}.controls-touch{display:none}@media(hover:none)and (pointer:coarse){.controls-keyboard{display:none}.controls-touch{display:inline}}@keyframes pulse-subtle{0%,to{opacity:.5}50%{opacity:.8}}.win-message{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:20;padding:var(--space-xl) var(--space-2xl);min-width:300px;background:linear-gradient(135deg,#141423f2,#0a0a14fa);border:1px solid var(--color-success-glow);border-radius:20px;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);text-align:center;display:flex;flex-direction:column;gap:var(--space-lg);box-shadow:0 0 60px var(--color-success-glow),0 20px 60px #00000080,inset 0 1px #ffffff1a;animation:win-appear .5s var(--ease-out-back)}@keyframes win-appear{0%{opacity:0;transform:translate(-50%,-50%) scale(.8)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}.win-message h2{font-family:var(--font-display);font-size:1.4rem;font-weight:600;letter-spacing:.1em;color:var(--color-success);text-shadow:0 0 30px var(--color-success-glow);margin:0}.win-message p{font-family:var(--font-body);font-size:.85rem;color:var(--color-text-secondary);margin:0;font-weight:400}.win-message-buttons{display:flex;flex-wrap:wrap;gap:var(--space-sm);justify-content:center;margin-top:var(--space-xs);max-width:300px;margin-left:auto;margin-right:auto}.win-message-buttons .btn{min-width:100px}.win-message-buttons .btn-primary,.win-message-buttons .btn-secondary{flex:1 1 45%}.win-message-buttons .btn-secondary:last-child{flex:1 1 100%;max-width:200px}.win-message .btn-primary{animation:none;opacity:1;padding:var(--space-sm) var(--space-lg)}.btn-secondary{font-family:var(--font-body);font-weight:600;font-size:.85rem;letter-spacing:.05em;padding:var(--space-sm) var(--space-lg);color:var(--color-text-primary);background:transparent;border:2px solid rgba(255,255,255,.2);border-radius:50px;cursor:pointer;transition:all .3s var(--ease-out-expo);position:relative;overflow:hidden}.btn-secondary:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,transparent 0%,rgba(255,255,255,.05) 50%,transparent 100%);transform:translate(-100%);transition:transform .5s var(--ease-out-expo)}.btn-secondary:hover{border-color:#fff6;background:#ffffff0d;box-shadow:0 0 20px #ffffff1a}.btn-secondary:hover:before{transform:translate(100%)}.btn-secondary:active{transform:scale(.96)}@media(max-width:600px){.game-header{padding:var(--space-xs) var(--space-sm)}.btn-small{padding:var(--space-2xs) var(--space-xs);font-size:.6rem}.turn-counter{padding:var(--space-2xs) var(--space-xs);font-size:.65rem}.puzzle-title-bar{padding:var(--space-2xs) var(--space-sm)}.puzzle-title{font-size:.85rem}.world-labels{left:var(--space-2xs);padding:var(--space-md) 0}.world-label{font-size:.5rem;letter-spacing:.08em;padding:var(--space-xs) var(--space-2xs)}.controls-hint{font-size:.6rem;padding:var(--space-xs)}.win-message{padding:var(--space-lg);min-width:auto;width:calc(100% - var(--space-xl) * 2);max-width:300px}.win-message h2{font-size:1.25rem}}.puzzle-select{flex:1;display:flex;flex-direction:column;position:relative;z-index:10;min-height:0;overflow:hidden}.screen-enter-up,.screen-enter-down,.screen-enter,.screen-enter-zoom{flex:1;display:flex;flex-direction:column;min-height:0}.puzzle-select-header{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-sm) var(--space-md);background:#0006;border-bottom:1px solid rgba(255,255,255,.08);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.puzzle-select-header h1{font-family:var(--font-display);font-size:1.2rem;font-weight:500;letter-spacing:.1em;background:linear-gradient(135deg,var(--color-lumina) 0%,var(--color-umbra) 100%);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.chapter-tabs{display:flex;flex-wrap:wrap;justify-content:center;gap:var(--space-xs);padding:var(--space-sm) var(--space-md)}.chapter-tab{flex:1 1 auto;min-width:100px;max-width:180px;display:flex;flex-direction:column;align-items:center;gap:var(--space-2xs);padding:var(--space-sm) var(--space-md);font-family:var(--font-body);background:#ffffff08;border:1px solid rgba(255,255,255,.1);border-radius:12px;cursor:pointer;transition:all .3s var(--ease-out-expo);position:relative}.chapter-tab:hover:not(.locked){background:#ffffff14;border-color:#fff3}.chapter-tab.active{background:linear-gradient(135deg,var(--color-lumina-subtle) 0%,var(--color-umbra-subtle) 100%);border-color:var(--color-lumina);box-shadow:0 0 20px var(--color-lumina-glow),0 0 40px var(--color-umbra-glow)}.chapter-tab.locked{opacity:.4;cursor:not-allowed}.chapter-tab:focus-visible{outline:2px solid var(--color-lumina);outline-offset:2px}.chapter-number{font-size:.7rem;font-weight:600;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.1em}.chapter-tab.active .chapter-number{color:var(--color-lumina)}.chapter-name{font-size:.85rem;font-weight:500;color:var(--color-text-primary)}.lock-icon{position:absolute;top:var(--space-2xs);right:var(--space-2xs);font-size:.7rem}.chapter-progress{display:flex;align-items:center;gap:var(--space-sm);padding:0 var(--space-md) var(--space-sm)}.progress-bar{flex:1;height:6px;background:#ffffff1a;border-radius:3px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--color-lumina) 0%,var(--color-umbra) 100%);border-radius:3px;transition:width .5s var(--ease-out-expo)}.progress-text{font-size:.7rem;font-weight:500;color:var(--color-text-muted);white-space:nowrap}.puzzle-grid{flex:1;display:grid;grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:var(--space-sm);padding:var(--space-md);overflow-y:auto;align-content:start;min-height:0;-webkit-overflow-scrolling:touch}.puzzle-card{display:flex;flex-direction:column;align-items:center;gap:var(--space-2xs);padding:var(--space-sm);background:#ffffff08;border:1px solid rgba(255,255,255,.08);border-radius:12px;cursor:pointer;transition:all .3s var(--ease-out-expo);min-height:110px;justify-content:center}.puzzle-card.unlocked:hover{background:#ffffff14;border-color:#fff3;transform:translateY(-2px);box-shadow:0 8px 20px #0000004d}.puzzle-card.completed{border-color:var(--color-success-glow);box-shadow:0 0 10px var(--color-success-glow)}.puzzle-card.locked{opacity:.4;cursor:not-allowed}.puzzle-card:focus-visible{outline:2px solid var(--color-lumina);outline-offset:2px}.puzzle-number{font-family:var(--font-display);font-size:1.5rem;font-weight:600;color:var(--color-text-primary)}.puzzle-card.completed .puzzle-number{color:var(--color-success)}.puzzle-name{font-size:.65rem;font-weight:500;color:var(--color-text-secondary);text-align:center;line-height:1.2;height:2.4em;overflow:hidden;display:flex;align-items:center;justify-content:center}.puzzle-stars,.puzzle-lock{display:flex;align-items:center;justify-content:center;min-height:1.2rem}.puzzle-stars{gap:2px}.star{font-size:.8rem}.star.filled{color:var(--color-lumina);text-shadow:0 0 8px var(--color-lumina-glow)}.star.empty{color:var(--color-text-muted);opacity:.3}.puzzle-lock{font-size:.9rem;opacity:.5}.puzzle-best{font-size:.6rem;color:var(--color-text-muted);min-height:1em}@media(max-width:400px){.puzzle-grid{grid-template-columns:repeat(3,1fr);gap:var(--space-xs);padding:var(--space-sm)}.puzzle-card{padding:var(--space-xs)}.puzzle-number{font-size:1.2rem}.puzzle-name{font-size:.55rem}}.settings{flex:1;display:flex;flex-direction:column;position:relative;z-index:10;overflow:hidden}.settings-header{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-sm) var(--space-md);background:#0006;border-bottom:1px solid rgba(255,255,255,.08);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.settings-header h1{font-family:var(--font-display);font-size:1.2rem;font-weight:500;letter-spacing:.1em;background:linear-gradient(135deg,var(--color-lumina) 0%,var(--color-umbra) 100%);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.settings-content{flex:1;padding:var(--space-lg);overflow-y:auto;display:flex;flex-direction:column;gap:var(--space-xl)}.settings-section{background:#ffffff08;border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:var(--space-lg)}.settings-section h2{font-family:var(--font-display);font-size:.9rem;font-weight:500;letter-spacing:.1em;color:var(--color-lumina);margin-bottom:var(--space-md);text-transform:uppercase}.setting-row{display:flex;flex-direction:column;gap:var(--space-xs);margin-bottom:var(--space-md)}.setting-row:last-child{margin-bottom:0}.setting-row label{font-size:.85rem;font-weight:500;color:var(--color-text-primary)}.slider-container{display:flex;align-items:center;gap:var(--space-sm)}.slider{flex:1;height:6px;-webkit-appearance:none;appearance:none;background:#ffffff1a;border-radius:3px;cursor:pointer}.slider:focus-visible{outline:2px solid var(--color-lumina);outline-offset:4px}.slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;background:linear-gradient(135deg,var(--color-lumina) 0%,var(--color-umbra) 100%);border-radius:50%;cursor:pointer;box-shadow:0 0 10px var(--color-lumina-glow);transition:transform .2s ease,box-shadow .2s ease}.slider::-webkit-slider-thumb:hover{transform:scale(1.1);box-shadow:0 0 15px var(--color-lumina-glow)}.slider::-moz-range-thumb{width:18px;height:18px;background:linear-gradient(135deg,var(--color-lumina) 0%,var(--color-umbra) 100%);border-radius:50%;cursor:pointer;border:none;box-shadow:0 0 10px var(--color-lumina-glow)}.slider-value{font-size:.75rem;font-weight:600;color:var(--color-text-secondary);min-width:40px;text-align:right;font-variant-numeric:tabular-nums}.settings-about{font-size:.85rem;color:var(--color-text-secondary);line-height:1.6;margin-bottom:var(--space-xs)}.settings-about:last-child{margin-bottom:0}.settings-about strong{color:var(--color-text-primary)}.toggle-btn{padding:var(--space-xs) var(--space-md);background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-secondary);font-size:.85rem;font-weight:600;cursor:pointer;transition:all var(--transition-fast);min-width:60px}.toggle-btn:hover{background:var(--color-bg-tertiary)}.toggle-btn.active{background:var(--color-world-a);border-color:var(--color-world-a);color:var(--color-bg-primary)}.toggle-btn:focus-visible{outline:2px solid var(--color-lumina);outline-offset:2px}.stats-display{display:flex;gap:var(--space-md);margin-bottom:var(--space-md);flex-wrap:wrap}.stat-item{display:flex;flex-direction:column;gap:var(--space-xxs);padding:var(--space-sm) var(--space-md);background:var(--color-bg-secondary);border-radius:var(--radius-sm);flex:1;min-width:100px}.stat-label{font-size:.75rem;color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em}.stat-value{font-size:1.25rem;font-weight:700;color:var(--color-world-a)}.save-buttons{display:flex;gap:var(--space-sm);margin-bottom:var(--space-md);flex-wrap:wrap}.import-status{font-size:.85rem;padding:var(--space-sm);border-radius:var(--radius-sm);margin-bottom:var(--space-md)}.import-status.success{background:#5de8a326;color:var(--color-success);border:1px solid var(--color-success)}.import-status.error{background:#e85d5d26;color:var(--color-error);border:1px solid var(--color-error)}.danger-zone{padding-top:var(--space-md);border-top:1px solid var(--color-border);margin-top:var(--space-sm)}.btn-danger{background:transparent;border-color:var(--color-error);color:var(--color-error)}.btn-danger:hover{background:var(--color-error);color:var(--color-bg-primary)}.confirm-reset{text-align:center}.confirm-reset p{color:var(--color-error);font-weight:500;margin-bottom:var(--space-sm)}.confirm-buttons{display:flex;gap:var(--space-sm);justify-content:center}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:#0a0a1299;border-radius:5px;border:1px solid rgba(255,255,255,.03)}::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--color-lumina-deep) 0%,var(--color-lumina) 25%,var(--color-umbra) 75%,var(--color-umbra-deep) 100%);border-radius:5px;border:2px solid transparent;background-clip:padding-box;box-shadow:inset 0 0 0 1px #ffffff1a,0 0 8px var(--color-lumina-glow),0 0 8px var(--color-umbra-glow);transition:all .3s ease}::-webkit-scrollbar-thumb:hover{background:linear-gradient(180deg,var(--color-lumina-bright) 0%,var(--color-lumina) 30%,var(--color-umbra) 70%,var(--color-umbra-bright) 100%);background-clip:padding-box;box-shadow:inset 0 0 0 1px #fff3,0 0 12px var(--color-lumina-glow),0 0 12px var(--color-umbra-glow),0 0 20px #f0b86633}::-webkit-scrollbar-thumb:active{background:linear-gradient(180deg,var(--color-lumina) 0%,var(--color-umbra-bright) 50%,var(--color-umbra) 100%);background-clip:padding-box}::-webkit-scrollbar-corner{background:#0a0a1299}*{scrollbar-width:thin;scrollbar-color:var(--color-lumina-deep) rgba(10,10,18,.6)}.puzzle-grid::-webkit-scrollbar{width:8px}.puzzle-grid::-webkit-scrollbar-track{background:#0a0a1266;border-radius:4px;margin:var(--space-xs) 0}.puzzle-grid::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--color-lumina) 0%,var(--color-umbra) 100%);border-radius:4px;border:1px solid transparent;background-clip:padding-box;box-shadow:0 0 6px var(--color-lumina-glow),0 0 6px var(--color-umbra-glow)}.puzzle-grid::-webkit-scrollbar-thumb:hover{background:linear-gradient(180deg,var(--color-lumina-bright) 0%,var(--color-umbra-bright) 100%);background-clip:padding-box;box-shadow:0 0 10px var(--color-lumina-glow),0 0 10px var(--color-umbra-glow),0 0 16px #f0b8664d}.settings-content::-webkit-scrollbar{width:8px}.settings-content::-webkit-scrollbar-track{background:#0a0a1266;border-radius:4px;margin:var(--space-xs) 0}.settings-content::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--color-lumina) 0%,var(--color-umbra) 100%);border-radius:4px;border:1px solid transparent;background-clip:padding-box;box-shadow:0 0 6px var(--color-lumina-glow),0 0 6px var(--color-umbra-glow)}.settings-content::-webkit-scrollbar-thumb:hover{background:linear-gradient(180deg,var(--color-lumina-bright) 0%,var(--color-umbra-bright) 100%);background-clip:padding-box;box-shadow:0 0 10px var(--color-lumina-glow),0 0 10px var(--color-umbra-glow)}@media screen and (max-width:900px)and (orientation:landscape)and (hover:none)and (pointer:coarse){.app{visibility:hidden}}@media screen and (orientation:portrait){.game-container,.game-viewport{height:100%;min-height:0}}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}