:root{--bg-primary: #0f1117;--bg-secondary: #1a1d27;--bg-elevated: #242836;--text-primary: #e8eaf0;--text-secondary: rgba(232, 234, 240, .55);--text-tertiary: rgba(232, 234, 240, .35);--accent: #6b8afd;--accent-hover: #8ba2ff;--accent-glow: rgba(107, 138, 253, .15);--accent-muted: rgba(107, 138, 253, .08);--success: #34d399;--error: #f87171;--warning: #fbbf24;--border-subtle: rgba(255, 255, 255, .06);--transition-fast: .15s;--transition-normal: .25s;--transition-slow: .4s}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;width:100%;overflow:hidden}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.5;letter-spacing:.01em;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;touch-action:manipulation}#app{height:100%;height:100dvh;width:100%;display:flex;flex-direction:column;position:relative}.screen{flex:1;min-height:0;width:100%;display:flex;flex-direction:column;padding:20px;padding-top:max(20px,env(safe-area-inset-top));padding-bottom:max(20px,env(safe-area-inset-bottom));animation:screenFadeIn var(--transition-slow) ease-out}.screen.screen-exit{animation:screenFadeOut var(--transition-normal) ease-in forwards}@keyframes screenFadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes screenFadeOut{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-8px)}}.start-screen{justify-content:center;align-items:center;text-align:center;position:relative}.start-screen h1{font-size:2rem;font-weight:600;letter-spacing:-.02em;margin-bottom:.3rem;animation:startFadeIn .5s ease-out 0ms both}.start-screen .subtitle{color:var(--text-secondary);font-size:.8rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;margin-bottom:2rem;animation:startFadeIn .5s ease-out .1s both}.level-selector{margin-bottom:1.5rem;animation:startFadeIn .5s ease-out .2s both}.level-selector label,.trial-input-group label{display:block;margin-bottom:.25rem;color:var(--text-secondary);font-size:.75rem;font-weight:500;letter-spacing:.06em;text-transform:uppercase}.trial-input-group{margin-bottom:.5rem;display:flex;align-items:center;justify-content:center;gap:.75rem;animation:startFadeIn .5s ease-out .25s both}.trial-input-group label{display:inline;margin-bottom:0}.trial-input-group input{width:76px;padding:.5rem;font-size:1rem;font-weight:600;text-align:center;background:var(--bg-elevated);border:1.5px solid var(--border-subtle);border-radius:12px;color:var(--text-primary);font-variant-numeric:tabular-nums;transition:border-color var(--transition-fast) ease,box-shadow var(--transition-fast) ease;-moz-appearance:textfield}.trial-input-group input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-muted)}.trial-input-group input::-webkit-outer-spin-button,.trial-input-group input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.duration-estimate{color:var(--text-tertiary);font-size:.75rem;margin-bottom:2rem;animation:startFadeIn .5s ease-out .3s both}.level-controls{display:flex;align-items:center;justify-content:center;gap:.75rem}.level-btn{width:44px;height:44px;border-radius:50%;border:1.5px solid var(--border-subtle);background:var(--bg-elevated);color:var(--text-primary);font-size:1.2rem;font-weight:600;cursor:pointer;transition:transform var(--transition-fast) ease,background var(--transition-fast) ease;-webkit-tap-highlight-color:transparent}.level-btn:active{transform:scale(.9);background:var(--accent-muted)}.level-value{font-size:2.5rem;font-weight:700;width:50px;font-variant-numeric:tabular-nums}.start-btn{background:var(--accent);color:#fff;border:none;padding:.9rem 2.5rem;font-size:1rem;font-weight:600;border-radius:12px;cursor:pointer;margin-bottom:1.5rem;box-shadow:0 4px 24px #6b8afd40;transition:transform var(--transition-fast) ease,box-shadow var(--transition-fast) ease;-webkit-tap-highlight-color:transparent;animation:startFadeIn .5s ease-out .35s both}.start-btn:active{transform:scale(.96);box-shadow:0 2px 12px #6b8afd26}.instructions{color:var(--text-tertiary);font-size:.75rem;line-height:1.6;animation:startFadeIn .5s ease-out .4s both}.instructions .hint{margin-top:.25rem;font-size:.7rem;color:var(--text-tertiary)}@keyframes startFadeIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.game-screen{padding:0;background-color:var(--bg-primary);position:relative}.game-header{display:flex;justify-content:space-between;align-items:center;padding:20px;padding-top:max(20px,env(safe-area-inset-top))}.level-indicator{font-size:.85rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--text-secondary)}.pause-btn{width:40px;height:40px;border-radius:50%;border:1px solid var(--border-subtle);background:var(--bg-elevated);color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;box-shadow:0 2px 8px #00000026;transition:transform var(--transition-fast) ease;-webkit-tap-highlight-color:transparent}.pause-btn:active{transform:scale(.9)}.game-content{flex:1;display:flex;align-items:center;justify-content:center;position:relative}.tap-zone{width:100%;height:100%;display:flex;align-items:center;justify-content:center}.game-center{display:flex;flex-direction:column;align-items:center;gap:1.25rem}.game-timer{font-size:.95rem;font-weight:500;font-variant-numeric:tabular-nums;font-family:SF Mono,ui-monospace,Menlo,Monaco,Consolas,monospace;color:var(--text-tertiary);letter-spacing:.06em}.progress-ring{position:relative;width:150px;height:150px;filter:drop-shadow(0 0 20px var(--accent-glow));transition:filter .3s ease}.progress-ring svg{transform:rotate(-90deg);width:100%;height:100%;overflow:visible;transition:transform .15s ease}.trial-arc{fill:none;stroke:var(--accent);stroke-width:2;stroke-linecap:round;stroke-dasharray:307.88;stroke-dashoffset:307.88;opacity:.35}.spinner-orbit{position:absolute;top:50%;left:50%;width:0;height:0;pointer-events:none}.spinner-dot{position:absolute;width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 6px #6b8afd99,0 0 14px #6b8afd40;top:-77px;left:-3.5px}.progress-ring.pulse svg{transform:rotate(-90deg) scale(1.04)}.progress-bg{fill:none;stroke:var(--bg-elevated);stroke-width:6}.progress-fill{fill:none;stroke:var(--accent);stroke-width:6;stroke-linecap:round;stroke-dasharray:283;stroke-dashoffset:283;transition:stroke-dashoffset .4s cubic-bezier(.4,0,.2,1);filter:drop-shadow(0 0 6px var(--accent-glow))}.trial-counter{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:1.1rem;font-weight:600;font-variant-numeric:tabular-nums;color:var(--text-secondary);letter-spacing:.02em}.game-footer{padding:20px;padding-bottom:max(20px,env(safe-area-inset-bottom));text-align:center}.game-hint{color:var(--text-tertiary);font-size:.8rem;letter-spacing:.02em}.game-screen.pressed{box-shadow:inset 0 0 120px #6b8afd1f;transition:box-shadow 80ms ease-out}.game-screen:not(.pressed){transition:box-shadow .3s ease-out}.game-screen.pressed .progress-ring{filter:drop-shadow(0 0 40px rgba(107,138,253,.6));transition:filter 80ms ease-out}.game-screen.pressed .progress-fill{stroke:var(--accent-hover);stroke-width:7;transition:stroke 80ms ease-out,stroke-width 80ms ease-out}.paused-overlay{position:absolute;inset:0;background:#0f1117d9;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);display:flex;align-items:center;justify-content:center;z-index:10;animation:overlayFadeIn .3s ease-out}.paused-overlay.exiting{animation:overlayFadeOut .2s ease-in forwards}@keyframes overlayFadeIn{0%{opacity:0}to{opacity:1}}@keyframes overlayFadeOut{0%{opacity:1}to{opacity:0}}.paused-message{text-align:center;display:flex;flex-direction:column;align-items:center}.pause-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;gap:8px;margin-bottom:1.5rem;animation:pauseIconIn .4s ease-out .1s both}.pause-icon .bar{width:6px;height:28px;background:var(--accent);border-radius:3px}@keyframes pauseIconIn{0%{opacity:0;transform:scale(.8)}to{opacity:1;transform:scale(1)}}.paused-message h2{font-size:1.25rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--text-secondary);margin-bottom:2rem;animation:pauseTextIn .4s ease-out .2s both}@keyframes pauseTextIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.resume-btn{background:var(--accent);color:#fff;border:none;padding:.9rem 2.5rem;font-size:1rem;font-weight:600;border-radius:12px;cursor:pointer;display:block;width:200px;margin-bottom:.75rem;box-shadow:0 4px 24px #6b8afd4d;transition:transform var(--transition-fast) ease,box-shadow var(--transition-fast) ease;-webkit-tap-highlight-color:transparent;animation:pauseBtnIn .4s ease-out .3s both}.resume-btn:active{transform:scale(.96);box-shadow:0 2px 12px #6b8afd33}.paused-message .exit-btn{background:transparent;color:var(--text-secondary);border:1px solid var(--border-subtle);padding:.7rem 2rem;font-size:.85rem;font-weight:500;border-radius:12px;cursor:pointer;display:block;width:200px;transition:transform var(--transition-fast) ease,background var(--transition-fast) ease;-webkit-tap-highlight-color:transparent;animation:pauseBtnIn .4s ease-out .4s both}.paused-message .exit-btn:active{transform:scale(.96);background:var(--bg-elevated)}@keyframes pauseBtnIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.results-screen{justify-content:center;align-items:center;text-align:center}.results-screen h2{font-size:.85rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-secondary);margin-bottom:1.5rem;animation:resultFadeIn .5s ease-out 0ms both}.completion-summary{margin-bottom:1rem;animation:resultFadeIn .5s ease-out .1s both}.completion-count{font-size:3.5rem;font-weight:700;letter-spacing:-.03em;font-variant-numeric:tabular-nums;line-height:1;display:block;color:var(--accent)}.completion-label{color:var(--text-tertiary);font-size:.7rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;margin-top:.25rem;display:block}.accuracy-display{margin-bottom:.5rem;animation:resultFadeIn .5s ease-out .1s both}.accuracy-value{font-size:4rem;font-weight:700;letter-spacing:-.03em;font-variant-numeric:tabular-nums;line-height:1;display:block}.accuracy-label{color:var(--text-tertiary);font-size:.7rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;margin-top:.25rem}.level-change{margin-bottom:1.5rem;font-size:.9rem;font-weight:500;animation:resultFadeIn .5s ease-out .2s both}.level-up{color:var(--success)}.level-down{color:var(--error)}.level-same{color:var(--text-secondary)}.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.5rem;margin-bottom:1.5rem;width:100%;max-width:280px}.stat{background:var(--bg-elevated);padding:.75rem .5rem;border-radius:12px;border:1px solid var(--border-subtle);box-shadow:0 2px 8px #0003}.stat:nth-child(1){animation:resultFadeIn .4s ease-out .25s both}.stat:nth-child(2){animation:resultFadeIn .4s ease-out .3s both}.stat:nth-child(3){animation:resultFadeIn .4s ease-out .35s both}.stat:nth-child(4){animation:resultFadeIn .4s ease-out .4s both}.stat-value{font-size:1.5rem;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.01em;line-height:1.2;display:block}.stat-value.hit{color:var(--success)}.stat-value.miss{color:var(--error)}.stat-value.false-alarm{color:var(--warning)}.stat-value.correct-rejection{color:var(--text-secondary)}.stat-label{font-size:.65rem;font-weight:500;letter-spacing:.04em;text-transform:uppercase;color:var(--text-tertiary)}.results-actions{display:flex;flex-direction:column;gap:.5rem;width:100%;max-width:280px;animation:resultFadeIn .4s ease-out .5s both}.continue-btn{background:var(--accent);color:#fff;border:none;padding:.85rem;font-size:1rem;font-weight:600;border-radius:12px;cursor:pointer;box-shadow:0 4px 24px #6b8afd40;transition:transform var(--transition-fast) ease,box-shadow var(--transition-fast) ease;-webkit-tap-highlight-color:transparent}.continue-btn:active{transform:scale(.96);box-shadow:0 2px 12px #6b8afd26}.end-btn{background:transparent;color:var(--text-secondary);border:1px solid var(--border-subtle);padding:.65rem;font-size:.9rem;font-weight:500;border-radius:12px;cursor:pointer;transition:transform var(--transition-fast) ease,background var(--transition-fast) ease;-webkit-tap-highlight-color:transparent}.end-btn:active{transform:scale(.96);background:var(--bg-elevated)}@keyframes resultFadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.settings-btn{position:absolute;top:max(20px,env(safe-area-inset-top));right:20px;width:40px;height:40px;border-radius:50%;border:1px solid var(--border-subtle);background:var(--bg-elevated);color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;box-shadow:0 2px 8px #00000026;transition:transform var(--transition-fast) ease;-webkit-tap-highlight-color:transparent;z-index:5}.settings-btn:active{transform:scale(.9)}.settings-overlay{position:absolute;inset:0;background:#0f1117d9;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);display:flex;align-items:center;justify-content:center;z-index:10;animation:overlayFadeIn .3s ease-out}.settings-overlay.exiting{animation:overlayFadeOut .2s ease-in forwards}.settings-panel{width:calc(100% - 48px);max-width:320px;background:var(--bg-secondary);border-radius:16px;border:1px solid var(--border-subtle);padding:24px;box-shadow:0 8px 32px #0000004d;animation:settingsPanelIn .4s ease-out .1s both}@keyframes settingsPanelIn{0%{opacity:0;transform:scale(.95) translateY(8px)}to{opacity:1;transform:scale(1) translateY(0)}}.settings-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.settings-header h2{font-size:1.1rem;font-weight:600;letter-spacing:.04em;color:var(--text-primary)}.settings-close-btn{width:36px;height:36px;border-radius:50%;border:1px solid var(--border-subtle);background:var(--bg-elevated);color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;transition:transform var(--transition-fast) ease;-webkit-tap-highlight-color:transparent}.settings-close-btn:active{transform:scale(.9)}.settings-list{display:flex;flex-direction:column}.settings-item{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-bottom:1px solid var(--border-subtle)}.settings-item:last-child{border-bottom:none}.settings-item-info{flex:1;margin-right:16px}.settings-item-label{display:block;font-size:.9rem;font-weight:500;color:var(--text-primary)}.settings-item-description{display:block;font-size:.7rem;color:var(--text-tertiary);margin-top:2px;line-height:1.4}.toggle-switch{position:relative;width:48px;height:28px;border-radius:14px;border:1.5px solid var(--border-subtle);background:var(--bg-elevated);cursor:pointer;padding:0;flex-shrink:0;transition:background var(--transition-fast) ease,border-color var(--transition-fast) ease;-webkit-tap-highlight-color:transparent}.toggle-switch.active{background:var(--accent);border-color:var(--accent)}.toggle-knob{position:absolute;top:2px;left:2px;width:22px;height:22px;border-radius:50%;background:#fff;box-shadow:0 1px 3px #0000004d;transition:transform var(--transition-fast) ease;pointer-events:none}.toggle-switch.active .toggle-knob{transform:translate(20px)}.settings-version{margin-top:20px;text-align:center;font-size:.65rem;color:var(--text-tertiary);letter-spacing:.04em}