:root{--bg: #0B1224;--bg-2: #121A33;--surface: rgba(255, 255, 255, .07);--surface-hover: rgba(255, 255, 255, .12);--border: rgba(79, 124, 255, .22);--border-bright: rgba(139, 92, 246, .5);--text: #F4F1FF;--text-muted: #9AA3C7;--green: #2ECC96;--green-glow: rgba(46, 204, 150, .35);--blue: #3B82F6;--purple: #A78BFA;--purple-dark: #7C3AED;--pink: #C084FC;--indigo: #4F7CFF;--yellow: #FCD34D;--orange: #FB923C;--red: #F87171;--brand-glow: rgba(79, 124, 255, .32);--r-sm: 10px;--r-md: 18px;--r-lg: 26px;--r-xl: 32px;--r-pill: 100px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;height:100svh;overflow:hidden}body{font-family:Plus Jakarta Sans,sans-serif;background:var(--bg);background-image:radial-gradient(ellipse 80% 50% at 18% 0%,rgba(59,130,246,.2),transparent),radial-gradient(ellipse 60% 40% at 82% 100%,rgba(124,58,237,.16),transparent);color:var(--text);-webkit-font-smoothing:antialiased}#root{height:100%;height:100svh}button{cursor:pointer;border:none;background:none;font-family:inherit}a{color:inherit;text-decoration:none}.app{position:relative;height:100%;height:100svh;overflow:hidden;display:flex;align-items:center;justify-content:center}.app-brand{position:fixed;top:12px;left:16px;z-index:1000;display:flex;align-items:center;padding:2px;border-radius:12px;background:#fff;box-shadow:0 0 22px var(--brand-glow),0 6px 18px #00000059;border:1px solid rgba(79,124,255,.35)}.app-brand:hover{transform:translateY(-1px)}.app-controls{position:fixed;top:14px;right:16px;z-index:1000;display:flex;gap:8px;align-items:center}.brand-mark{display:block;object-fit:contain;background:#fff;border-radius:10px}@media (max-width: 560px){.app-brand{top:10px;left:10px}.app-brand .brand-mark{width:34px;height:34px}.app-controls{top:10px;right:10px;gap:6px}.language-picker select{padding:4px 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rgba(255,255,255,.14);border-radius:var(--r-md);background:#ffffff08}.ad-break-label{font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--text-muted);text-align:center;margin-bottom:8px}.flow-ad{margin-top:16px}.arcade-hub-ad{max-width:none}.ad-unit--arcade{margin-top:28px;margin-bottom:8px}.screen{position:relative;z-index:1;width:100%;height:100%;display:flex;align-items:center;justify-content:center;padding:20px;overflow-x:hidden;overflow-y:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain}.screen:not(.landing-screen):not(.arcade-screen){padding-top:64px}.glass-card{background:linear-gradient(180deg,#ffffff17,#ffffff0a);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border:1px solid var(--border);border-radius:var(--r-xl);padding:32px;box-shadow:0 12px 40px #00000061,inset 0 1px #ffffff1a}.glass-card--sm{padding:20px 18px;border-radius:var(--r-lg)}.glass-card--glow{border-color:#a78bfa6b;box-shadow:0 0 56px #3b82f624,0 12px 36px #00000061,inset 0 1px #ffffff1a}@media (max-width: 500px){.glass-card{padding:28px 20px}}.glitch-text{position:relative;color:#fff;font-weight:800;letter-spacing:-.03em;line-height:1;display:inline-block}.glitch-text:before,.glitch-text:after{content:attr(data-text);position:absolute;top:0;left:0;width:100%;height:100%;font-weight:inherit;letter-spacing:inherit}.glitch-text:before{color:var(--green);animation:glitch1 5s infinite;clip-path:polygon(0 0,100% 0,100% 42%,0 42%)}.glitch-text:after{color:var(--pink);animation:glitch2 5s infinite;clip-path:polygon(0 58%,100% 58%,100% 100%,0 100%)}@keyframes glitch1{0%,88%,to{transform:translate(0);opacity:0}89%{transform:translate(-3px,1px);opacity:.9}91%{transform:translate(3px,-1px);opacity:.9}93%{transform:translate(0);opacity:0}}@keyframes glitch2{0%,83%,to{transform:translate(0);opacity:0}84%{transform:translate(3px);opacity:.9}86%{transform:translate(-3px,1px);opacity:.9}88%{transform:translate(0);opacity:0}}.neon-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 32px;border-radius:var(--r-pill);font-family:Plus Jakarta Sans,sans-serif;font-size:.95rem;font-weight:700;cursor:pointer;transition:box-shadow .22s,transform .22s;white-space:nowrap;border:none;position:relative}.neon-btn--sm{padding:9px 20px;font-size:.84rem}.neon-btn--green{background:linear-gradient(135deg,#2ecc96,#06b6d4);color:#04101c;font-weight:800;box-shadow:0 0 30px #2ecc9680,0 4px 20px #00000040}.neon-btn--green:hover{box-shadow:0 0 55px #2ecc96b8,0 8px 30px #0000004d;transform:translateY(-2px)}.neon-btn--purple{background:linear-gradient(135deg,#3b82f6,#7c3aed);color:#fff;box-shadow:0 0 28px #4f7cff73,0 4px 20px #00000040}.neon-btn--purple:hover{box-shadow:0 0 52px #7c3aed99,0 8px 30px #0000004d;transform:translateY(-2px)}.neon-btn--red{background:linear-gradient(135deg,#f87171,#ef4444);color:#fff;box-shadow:0 0 28px #ef444466,0 4px 15px #0003}.neon-btn--red:hover{transform:translateY(-2px)}.neon-btn--outline{background:#ffffff0f;color:var(--text);border:1px solid var(--border-bright);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.neon-btn--outline:hover{background:#ffffff1c;border-color:var(--purple);transform:translateY(-1px)}.neon-btn:disabled{opacity:.38;cursor:not-allowed;transform:none!important}.meter-wrap{width:100%}.meter-label{font-family:JetBrains Mono,monospace;font-size:.72rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.12em;margin-bottom:8px}.meter-track{height:14px;background:#ffffff12;border-radius:var(--r-pill);overflow:hidden;border:1px solid var(--border)}.meter-fill{height:100%;border-radius:var(--r-pill)}.meter-pct{font-family:JetBrains Mono,monospace;font-size:.82rem;font-weight:700;margin-top:6px}.quiz-option{width:100%;text-align:left;padding:15px 20px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);color:var(--text);font-family:Plus Jakarta Sans,sans-serif;font-size:.95rem;cursor:pointer;transition:all .18s}.quiz-option:hover{background:var(--surface-hover);border-color:var(--border-bright);transform:translate(5px)}.quiz-option.selected{border-color:var(--green);background:#2ecc961a;color:var(--green)}.progress-track{height:4px;background:#ffffff12;border-radius:var(--r-pill);overflow:hidden;margin-bottom:28px}.progress-fill{height:100%;background:linear-gradient(90deg,var(--indigo),var(--purple));border-radius:var(--r-pill);transition:width .4s ease;box-shadow:0 0 10px #6366f199}.reaction-arena{position:relative;width:100%;height:260px;background:#ffffff08;border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;cursor:crosshair;touch-action:manipulation;-webkit-user-select:none;user-select:none}.brain-target-wrap{position:absolute;transform:translate(-50%,-50%);z-index:2;touch-action:manipulation;-webkit-tap-highlight-color:transparent}.brain-target{display:flex;align-items:center;justify-content:center;font-size:3.8rem;line-height:1;min-width:64px;min-height:64px;cursor:pointer;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;touch-action:manipulation;-webkit-tap-highlight-color:transparent;filter:drop-shadow(0 0 18px rgba(46,204,150,.85))}.distractor-emoji{position:absolute;font-size:2rem;transform:translate(-50%,-50%);pointer-events:none;opacity:.55;animation:distractorFlash .35s ease forwards}@keyframes distractorFlash{0%{opacity:0;transform:translate(-50%,-50%) scale(.5)}40%{opacity:.7;transform:translate(-50%,-50%) scale(1.1)}to{opacity:0;transform:translate(-50%,-50%) scale(.8)}}.countdown-num{font-family:JetBrains Mono,monospace;font-size:5rem;font-weight:700;color:var(--purple);text-shadow:0 0 40px rgba(167,139,250,.8)}.rt-time-chip{font-family:JetBrains Mono,monospace;font-size:.85rem;padding:4px 12px;background:#2ecc961a;border:1px solid rgba(46,204,150,.3);border-radius:var(--r-pill);color:var(--green)}.reaction-heading{text-align:center;margin-bottom:24px}.reaction-cta{margin-top:24px;text-align:center}.diag-emoji{font-size:4rem;line-height:1;margin-bottom:14px;display:block}.diag-tier-label{font-size:1.4rem;font-weight:700;letter-spacing:.02em;margin-bottom:10px;color:var(--text)}.diag-desc{color:var(--text-muted);margin-bottom:24px;line-height:1.65;font-size:.95rem}.diag-score-row{font-family:JetBrains Mono,monospace;font-size:.72rem;color:var(--text-muted);margin-top:8px;letter-spacing:.02em}.game-arena{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1;overflow:hidden;background:radial-gradient(ellipse at 50% 0%,rgba(99,102,241,.18),transparent 60%)}.game-hud{position:absolute;top:0;left:0;right:0;z-index:10;display:flex;align-items:center;gap:16px;padding:14px 150px 14px 20px;background:#0f0c24d1;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.hud-score{font-family:JetBrains Mono,monospace;font-size:1.3rem;font-weight:700;color:var(--green);min-width:70px}.hud-timer-track{flex:1;height:8px;background:#ffffff14;border-radius:var(--r-pill);overflow:hidden}.hud-timer-fill{height:100%;border-radius:var(--r-pill);transition:width 1s linear,background-color 1s}.hud-round{font-family:JetBrains Mono,monospace;font-size:.82rem;color:var(--text-muted);min-width:50px;text-align:right}.emoji-fall-wrapper{position:absolute;top:0;will-change:transform;animation:fallDown linear forwards}@keyframes fallDown{0%{transform:translateY(-90px)}to{transform:translateY(115vh)}}.emoji-item{display:block;font-size:2.6rem;cursor:pointer;-webkit-user-select:none;user-select:none;touch-action:none;padding:10px;filter:drop-shadow(0 4px 10px rgba(0,0,0,.5));transition:filter .1s}.emoji-item:active{filter:drop-shadow(0 0 16px rgba(46,204,150,.9))}.emoji-item--bad:active{filter:drop-shadow(0 0 16px rgba(239,68,68,.9))}.round-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#0f0c24e0;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);z-index:20;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px}.round-overlay-title{font-size:2rem;font-weight:800;color:var(--purple);text-shadow:0 0 30px rgba(167,139,250,.7)}.round-overlay-score{font-family:JetBrains Mono,monospace;font-size:1.1rem;color:var(--text-muted)}.score-pop{position:absolute;font-family:JetBrains 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auto;display:flex;flex-direction:column;gap:32px}.landing-topbar{position:static;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding:10px 14px 10px 10px;border:1px solid var(--border);border-radius:18px;background:#0b1224db;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);box-shadow:0 10px 30px #00000047}.landing-brand-wrap{display:flex;align-items:center;gap:12px;background:none;border:none;color:inherit;cursor:pointer;text-align:left;padding:0}.landing-brand-logo{width:44px;height:44px;border-radius:12px;border:1px solid rgba(79,124,255,.28);box-shadow:0 0 18px var(--brand-glow);object-fit:contain;background:#fff;padding:2px}.landing-brand-dot{width:12px;height:12px;border-radius:var(--r-pill);background:linear-gradient(145deg,var(--green),var(--purple));box-shadow:0 0 18px #2ecc9659}.landing-brand{font-weight:800;letter-spacing:-.01em;color:#fff;font-size:1.02rem}.landing-brand-sub{color:var(--text-muted);font-size:.68rem;text-transform:uppercase;letter-spacing:.14em;margin-top:2px}.landing-nav-desktop{display:flex;align-items:center;gap:10px}.landing-nav-mobile{display:none;align-items:center;gap:8px}.landing-mob-icon-btn{width:36px;height:36px;border:1px solid var(--border);border-radius:var(--r-sm);background:#ffffff0a;font-size:1rem;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .18s}.landing-mob-icon-btn:hover{background:#ffffff14}.landing-hamburger{display:flex;flex-direction:column;justify-content:center;gap:5px;width:36px;height:36px;padding:8px;border:1px solid var(--border);border-radius:var(--r-sm);background:#ffffff0a;cursor:pointer;transition:background .18s,border-color .18s}.landing-hamburger:hover{background:#ffffff14}.landing-hamburger span{display:block;width:100%;height:2px;background:var(--text);border-radius:2px;transition:transform .26s ease,opacity .26s ease}.landing-hamburger.is-open{border-color:var(--border-bright)}.landing-hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}.landing-hamburger.is-open span:nth-child(2){opacity:0;transform:scaleX(0)}.landing-hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.landing-mobile-menu{border:1px solid var(--border-bright);border-radius:var(--r-md);background:#0f0c24f7;-webkit-backdrop-filter:blur(28px);backdrop-filter:blur(28px);overflow:hidden}.landing-mobile-nav{display:flex;flex-direction:column}.landing-mobile-nav button{display:flex;align-items:center;justify-content:space-between;text-align:left;padding:16px 20px;font-size:1rem;font-weight:600;color:var(--text);border-bottom:1px solid var(--border);transition:background .15s,color .15s;letter-spacing:.01em}.landing-mobile-nav button svg{color:var(--text-muted);flex-shrink:0}.landing-mobile-nav button:hover{background:#8b5cf614;color:var(--green)}.landing-mobile-nav button:hover svg{color:var(--green)}.landing-mobile-nav button:last-child{border-bottom:none}.landing-mobile-menu-footer{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-top:1px solid var(--border);background:#ffffff05}.landing-mob-start-btn{padding:9px 20px!important;font-size:.88rem!important;white-space:nowrap}.landing-stats-strip{display:none}.landing-links{display:flex;gap:8px;flex-wrap:wrap}.landing-links button{color:var(--text-muted);font-size:.82rem;font-weight:600;padding:6px 10px;border-radius:var(--r-pill);transition:color .18s,background .18s}.landing-links button:hover{color:var(--text);background:#ffffff0d}.landing-topbar-cta{border-radius:var(--r-pill);padding:8px 16px;font-size:.8rem;font-weight:700;background:linear-gradient(135deg,#3b82f6,#7c3aed);color:#fff;border:none;box-shadow:0 0 16px #4f7cff66;transition:box-shadow .18s,transform .18s}.landing-topbar-cta:hover{box-shadow:0 0 28px #4f7cffa6;transform:translateY(-1px)}.landing-section{scroll-margin-top:88px}@keyframes heroBorderGlow{0%,to{border-color:#3b82f657}50%{border-color:#7c3aed6b}}.landing-hero{width:100%;border:1px solid rgba(79,124,255,.34);border-radius:28px;padding:clamp(24px,3.4vw,40px);background:radial-gradient(1200px 420px at 88% -8%,rgba(59,130,246,.14),transparent 60%),radial-gradient(900px 300px at 10% 110%,rgba(124,58,237,.16),transparent 65%),#ffffff09;box-shadow:0 30px 80px #00000080,inset 0 1px #ffffff14;animation:heroBorderGlow 7s ease-in-out infinite;position:relative;overflow:hidden}.landing-hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:clamp(18px,3vw,36px);align-items:center}.landing-hero-content{max-width:620px}.landing-eyebrow{display:inline-flex;align-items:center;gap:6px;margin-bottom:14px;font-size:.75rem;font-weight:700;color:#c4d4ff;letter-spacing:.12em;text-transform:uppercase;background:#3b82f61f;border:1px solid rgba(59,130,246,.32);border-radius:var(--r-pill);padding:5px 12px}.landing-title{font-size:clamp(2.05rem,5.4vw,3.7rem);margin-bottom:22px;line-height:1.06;letter-spacing:-.035em;font-weight:800;color:var(--text);background:linear-gradient(135deg,#f8f6ff 10%,#93c5fd 48%,#c4b5fd);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.landing-subtitle{color:var(--text-muted);line-height:1.72;margin-bottom:20px;font-size:1rem;max-width:62ch}.landing-chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.landing-chip-row span{font-size:.76rem;color:#f0ecffeb;border:1px solid rgba(79,124,255,.28);border-radius:var(--r-pill);padding:6px 13px;background:#3b82f61a;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.landing-cta-row{display:flex;flex-wrap:wrap;align-items:flex-start;gap:12px}.landing-subcta-row{margin-top:24px;display:flex;flex-wrap:wrap;gap:14px}.landing-subcta-row button{color:var(--text-muted);font-size:.82rem;border-bottom:1px solid rgba(255,255,255,.28);padding-bottom:2px}.landing-reset{color:#ff7878e6!important}.landing-visual-stack{position:relative;min-height:0;padding:0;width:100%;max-width:460px;justify-self:end;display:flex;flex-direction:column;gap:14px}.landing-logo-plate{background:#fff;border-radius:24px;padding:18px 22px 10px;border:1px solid rgba(79,124,255,.28);box-shadow:0 24px 50px #0f172a73,0 0 40px #3b82f62e}.landing-visual-logo{display:block;width:100%;height:auto;object-fit:contain}.landing-metric-panel{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.landing-metric-panel>div{border:1px solid 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var(--red);opacity:.6}.game-complete-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#0f0c24eb;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);z-index:50;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;border-radius:inherit}.global-footer{position:fixed;bottom:0;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;max-width:1100px;margin:0 auto;padding:8px 18px;padding-bottom:calc(8px + env(safe-area-inset-bottom,0px));background:#0b1224f0;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid var(--border);border-bottom:none;border-radius:var(--r-md) var(--r-md) 0 0;font-size:.8rem;color:var(--text-muted)}.global-footer-brand{display:flex;align-items:center;gap:10px;min-width:0;flex:1;overflow:hidden}.global-footer-logo{display:flex;padding:0;background:none;border:none}.global-footer-links{display:flex;flex-wrap:wrap;gap:10px 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p{font-size:.9rem;color:var(--text-muted);line-height:1.7;margin-bottom:10px}.privacy-section a{color:var(--purple);text-decoration:underline;text-underline-offset:3px}.privacy-section a:hover{color:var(--text)}.privacy-section ul,.content-list{margin:0 0 10px 1.15rem;color:var(--text-muted);font-size:.9rem;line-height:1.7}.content-title{font-size:1.7rem;font-weight:800;line-height:1.25;margin-bottom:8px}.content-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}.content-kicker{margin-bottom:0}.content-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:14px}.content-card{display:flex;flex-direction:column;gap:6px;padding:14px;border:1px solid var(--border);border-radius:var(--r-md);background:#ffffff08;text-align:left}.content-card:hover{border-color:#8b5cf68c}.content-card strong{color:var(--text);font-size:.95rem}.content-card 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