@import"https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,600;0,9..40,700;1,9..40,500&display=swap";:root{--bg-deep: #070b14;--bg-card: rgba(20, 28, 48, .72);--bg-elevated: rgba(30, 42, 72, .85);--border: rgba(124, 58, 237, .25);--text: #e8ecf8;--muted: #8b95b0;--accent: #a78bfa;--accent-2: #22d3ee;--success: #34d399;--danger: #f87171;--radius: 18px;--font: "DM Sans", system-ui, sans-serif;--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px)}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:var(--font);background:var(--bg-deep);color:var(--text);-webkit-tap-highlight-color:transparent;touch-action:manipulation}body{background-image:radial-gradient(ellipse 120% 80% at 50% -20%,rgba(124,58,237,.35),transparent),radial-gradient(ellipse 80% 50% at 100% 50%,rgba(34,211,238,.12),transparent),radial-gradient(ellipse 60% 40% at 0% 80%,rgba(167,139,250,.15),transparent);background-attachment:fixed}#root{min-height:100dvh;padding:calc(12px + var(--safe-top)) 16px calc(16px + var(--safe-bottom));max-width:440px;margin:0 auto}button{font-family:inherit;cursor:pointer;border:none}.app-header{text-align:center;margin-bottom:20px}.app-header h1{margin:0;font-size:1.65rem;font-weight:700;letter-spacing:-.02em;background:linear-gradient(135deg,#c4b5fd,#67e8f9);-webkit-background-clip:text;background-clip:text;color:transparent}.app-header p{margin:6px 0 0;font-size:.9rem;color:var(--muted)}.stats-bar{display:flex;justify-content:center;gap:12px;margin-bottom:20px;flex-wrap:wrap}.stat-pill{background:var(--bg-card);border:1px solid var(--border);border-radius:999px;padding:8px 14px;font-size:.8rem;color:var(--muted)}.stat-pill strong{color:var(--accent-2);font-weight:600}.game-grid{display:grid;gap:12px}.game-card{display:block;width:100%;text-align:left;padding:16px 18px;border-radius:var(--radius);background:var(--bg-card);border:1px solid var(--border);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);transition:transform .15s ease,border-color .15s ease}.game-card:active{transform:scale(.98)}.game-card:hover{border-color:#a78bfa73}.game-card-icon{font-size:1.75rem;margin-bottom:8px}.game-card h2{margin:0 0 4px;font-size:1.05rem;font-weight:600}.game-card .tag{display:inline-block;font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;color:var(--accent-2);margin-bottom:6px}.game-card p{margin:0;font-size:.82rem;color:var(--muted);line-height:1.4}.screen-title{display:flex;align-items:center;gap:12px;margin-bottom:16px}.back-btn{width:44px;height:44px;border-radius:12px;background:var(--bg-elevated);border:1px solid var(--border);color:var(--text);font-size:1.25rem;display:grid;place-items:center}.screen-title h2{margin:0;font-size:1.15rem;flex:1}.game-shell{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;min-height:280px;display:flex;flex-direction:column;align-items:stretch;justify-content:center}.game-instructions{text-align:center;color:var(--muted);font-size:.9rem;margin-bottom:16px}.big-btn{width:100%;padding:16px;border-radius:14px;font-size:1rem;font-weight:600;background:linear-gradient(135deg,#7c3aed,#0891b2);color:#fff;margin-top:8px}.big-btn.secondary{background:var(--bg-elevated);border:1px solid var(--border);color:var(--text)}.big-btn.danger-zone{background:linear-gradient(135deg,#dc2626,#b91c1c)}.score-line{text-align:center;font-size:1.1rem;margin:12px 0}.score-line strong{color:var(--accent-2)}.tap-zone{min-height:200px;border-radius:16px;display:grid;place-items:center;font-size:1.25rem;font-weight:600;-webkit-user-select:none;user-select:none;transition:background .12s ease}.tap-zone.waiting{background:#f8717140;border:2px dashed var(--danger);color:#fecaca}.tap-zone.go{background:#34d39959;border:2px solid var(--success);color:#a7f3d0}.tap-zone.neutral{background:var(--bg-elevated);border:2px solid var(--border);color:var(--muted)}.grid-memory{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;max-width:280px;margin:0 auto;width:100%}.cell-btn{aspect-ratio:1;border-radius:12px;background:var(--bg-elevated);border:2px solid var(--border);font-size:1.25rem;color:transparent}.cell-btn.highlight{background:linear-gradient(145deg,#7c3aed,#22d3ee);border-color:transparent;box-shadow:0 0 20px #7c3aed80}.cell-btn.wrong{animation:shake .35s ease;border-color:var(--danger)}.cell-btn.correct-flash{border-color:var(--success)}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-6px)}75%{transform:translate(6px)}}.num-display{font-size:2.5rem;font-weight:700;text-align:center;letter-spacing:.15em;font-variant-numeric:tabular-nums;min-height:3.2rem;display:grid;place-items:center}.input-row{display:flex;gap:8px;margin-top:12px}.input-row input{flex:1;padding:14px 16px;border-radius:12px;border:1px solid var(--border);background:var(--bg-deep);color:var(--text);font-size:1.1rem;text-align:center}.stroop-options{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}.color-btn{padding:18px;border-radius:14px;font-weight:700;font-size:1rem;border:2px solid rgba(255,255,255,.2)}.parity-row{display:flex;gap:12px;justify-content:center;margin-top:16px}.parity-btn{flex:1;max-width:140px;padding:20px;border-radius:14px;font-size:1.1rem;font-weight:700;background:var(--bg-elevated);border:2px solid var(--border);color:var(--text)}.parity-btn:active{transform:scale(.97)}.math-challenge{text-align:center;font-size:2rem;font-weight:700;margin:16px 0;font-variant-numeric:tabular-nums}.footer-note{text-align:center;margin-top:28px;font-size:.75rem;color:var(--muted);opacity:.8}.hud-row{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:10px}.hud-chip{font-size:.75rem;color:var(--text);background:#22d3ee1f;border:1px solid rgba(34,211,238,.35);border-radius:999px;padding:6px 10px}.mode-pill{margin:-4px auto 12px;width:fit-content;font-size:.78rem;color:#c4b5fd;border:1px solid rgba(167,139,250,.4);background:#a78bfa1a;border-radius:999px;padding:6px 12px}.option-grid{display:grid;gap:10px;margin-top:8px}.option-grid.two{grid-template-columns:1fr 1fr}.option-btn{border-radius:14px;padding:16px;font-size:1rem;font-weight:700;color:#fff;background:linear-gradient(145deg,#7c3aed,#0891b2)}.option-btn.secondary{background:linear-gradient(145deg,#334155,#1e293b)}.option-btn:disabled{opacity:.45}.stimulus-card{min-height:170px;border-radius:16px;border:1px solid var(--border);background:#0f172ab8;display:grid;place-items:center;margin-bottom:12px;text-align:center}.stim-symbol{display:block;font-size:3.2rem;line-height:1;margin-bottom:6px;text-shadow:0 0 24px rgba(255,255,255,.2)}.stim-label{font-size:.92rem;color:var(--muted);text-transform:capitalize}.muted-big{font-size:1.5rem;color:var(--muted)}.grid-memory.grid-4{grid-template-columns:repeat(4,1fr);max-width:320px}.grid-memory.grid-4 .cell-btn{min-height:66px}