:root{--bg-deep: #0E0C0A;--bg-base: #151210;--bg-surface: #1E1A16;--bg-elevated: #28231E;--accent: #D4952A;--accent-hover: #E8A83E;--text-primary: #EDE8E0;--text-secondary: #9E958A;--text-muted: #6B6259;--cool: #6E8899;--success: #5CB87A;--warning: #E8A83E;--danger: #D45D5D;--scrim: rgba(14, 12, 10, .7);--wheel-1: #C0392B;--wheel-2: #E67E22;--wheel-3: #F1C40F;--wheel-4: #27AE60;--wheel-5: #16A085;--wheel-6: #00BCD4;--wheel-7: #3498DB;--wheel-8: #9B59B6;--wheel-9: #E91E63;--wheel-10: #D45D5D;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--font-body: system-ui, -apple-system, sans-serif;--font-display: "Avenir Next Condensed", "Roboto Condensed", system-ui, sans-serif;--font-mono: "SF Mono", "Roboto Mono", monospace;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 2rem;--text-4xl: 3rem;--shadow-sm: 0 1px 2px 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: 0 0 20px rgba(212, 149, 42, .3);--z-nav: 100;--z-sheet: 200;--z-overlay: 300;--z-toast: 400;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 50%;--touch-min: 56px;--touch-cta: 64px;--transition-fast: .15s ease;--transition-base: .25s ease;--transition-slow: .4s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeOut{0%{opacity:1}to{opacity:0}}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}@keyframes slideDown{0%{transform:translateY(0)}to{transform:translateY(100%)}}@keyframes pulse{0%{opacity:1}50%{opacity:.5}to{opacity:1}}@keyframes spinIn{0%{transform:scale(.8);opacity:0}to{transform:scale(1);opacity:1}}@keyframes flyIn{0%{transform:translate(-30px);opacity:0}to{transform:translate(0);opacity:1}}@keyframes shake{0%{transform:translate(0)}25%{transform:translate(-5px)}50%{transform:translate(5px)}75%{transform:translate(-5px)}to{transform:translate(0)}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-body);font-size:var(--text-base);color:var(--text-primary);background:var(--bg-base);min-height:100dvh;overscroll-behavior:none;-webkit-tap-highlight-color:transparent;touch-action:manipulation;line-height:1.5}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text-primary);line-height:1.2}h1{font-size:var(--text-3xl)}h2{font-size:var(--text-2xl)}h3{font-size:var(--text-xl)}h4{font-size:var(--text-lg)}.text-secondary{color:var(--text-secondary)}.text-muted{color:var(--text-muted)}.text-accent{color:var(--accent)}.text-mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}.display-heading{font-family:var(--font-display);font-weight:700;text-transform:uppercase;letter-spacing:.08em}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);min-height:var(--touch-min);padding:var(--space-sm) var(--space-lg);border-radius:var(--radius-md);font-family:var(--font-body);font-size:var(--text-base);font-weight:600;border:none;cursor:pointer;transition:var(--transition-fast);-webkit-user-select:none;user-select:none;text-decoration:none;position:relative;overflow:hidden;white-space:nowrap}.btn-primary{background:var(--accent);color:#0e0c0a}.btn-primary:active{background:var(--accent-hover)}.btn-secondary{background:var(--bg-elevated);color:var(--text-primary);border:1px solid rgba(255,255,255,.1)}.btn-secondary:active{background:#ffffff14}.btn-danger{background:var(--danger);color:#fff}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:active{background:#ffffff0d}.btn-lg{min-height:var(--touch-cta);font-size:var(--text-lg);padding:var(--space-md) var(--space-xl)}.btn-sm{min-height:40px;padding:var(--space-xs) var(--space-md);font-size:var(--text-sm)}.btn-block{width:100%}.btn:disabled{opacity:.5;pointer-events:none}.btn:active{transform:scale(.97)}.input{width:100%;min-height:var(--touch-min);padding:var(--space-sm) var(--space-md);font-size:16px;font-family:var(--font-body);color:var(--text-primary);background:var(--bg-elevated);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-md);outline:none;transition:var(--transition-fast)}.input:focus{border-color:var(--accent);box-shadow:0 0 0 2px #d4952a33}.card{background:var(--bg-surface);border-radius:var(--radius-lg);padding:var(--space-lg);box-shadow:var(--shadow-sm)}.card-elevated{background:var(--bg-elevated)}.hidden{display:none}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-sm{gap:var(--space-sm)}.gap-md{gap:var(--space-md)}.gap-lg{gap:var(--space-lg)}.text-center{text-align:center}.mt-sm{margin-top:var(--space-sm)}.mt-md{margin-top:var(--space-md)}.mt-lg{margin-top:var(--space-lg)}.mb-sm{margin-bottom:var(--space-sm)}.mb-md{margin-bottom:var(--space-md)}.mb-lg{margin-bottom:var(--space-lg)}.w-full{width:100%}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-base)}::-webkit-scrollbar-thumb{background:var(--bg-surface);border-radius:3px}*{scrollbar-width:thin;scrollbar-color:var(--bg-surface) var(--bg-base)}img{max-width:100%;display:block}a{color:var(--accent);text-decoration:none}.bottom-nav{position:fixed;bottom:0;left:0;right:0;height:calc(64px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--bg-deep);border-top:1px solid rgba(255,255,255,.08);display:flex;z-index:var(--z-nav);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.nav-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--text-muted);font-size:var(--text-xs);cursor:pointer;transition:var(--transition-fast);padding:var(--space-xs) 0;text-decoration:none}.nav-item.active{color:var(--accent)}.nav-item .nav-icon{width:24px;height:24px}.nav-item .nav-label{font-size:10px;font-weight:500}.app-container{padding-bottom:calc(64px + env(safe-area-inset-bottom));padding-top:env(safe-area-inset-top);min-height:100dvh}.view{display:none;padding:var(--space-md);animation:fadeIn var(--transition-base)}.view.active{display:block}.view-header{padding:var(--space-md);margin-bottom:var(--space-md)}.sheet-scrim{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--scrim);z-index:var(--z-sheet);opacity:0;pointer-events:none;transition:opacity var(--transition-base)}.sheet-scrim.active{opacity:1;pointer-events:auto}.sheet{position:fixed;left:0;right:0;bottom:0;max-height:85vh;background:var(--bg-elevated);border-radius:var(--radius-xl) var(--radius-xl) 0 0;z-index:var(--z-sheet);transform:translateY(100%);transition:transform var(--transition-slow);overflow-y:auto;overscroll-behavior:contain;padding-bottom:env(safe-area-inset-bottom)}.sheet.active{transform:translateY(0)}.sheet-handle{width:36px;height:4px;background:#fff3;border-radius:2px;margin:8px auto 16px}.sheet-header{padding:0 var(--space-lg);margin-bottom:var(--space-md);display:flex;justify-content:space-between;align-items:center}.sheet-body{padding:0 var(--space-lg) var(--space-lg)}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--bg-deep);z-index:var(--z-overlay);display:none;flex-direction:column}.overlay.active{display:flex}.overlay-header{display:flex;justify-content:space-between;align-items:center;padding:var(--space-md);min-height:56px}.overlay-close{width:40px;height:40px;display:flex;align-items:center;justify-content:center;color:var(--text-secondary);background:transparent;border:none;font-size:24px;cursor:pointer}.overlay-body{flex:1;overflow-y:auto;display:flex;flex-direction:column}.progress-bar-container{padding:var(--space-sm) var(--space-md);background:var(--bg-deep)}.progress-bar{height:4px;background:#ffffff1a;border-radius:2px;overflow:hidden}.progress-bar-fill{height:100%;background:var(--accent);border-radius:2px;transition:width var(--transition-base)}.list-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md);border-bottom:1px solid rgba(255,255,255,.05);min-height:var(--touch-min)}.list-item:last-child{border-bottom:none}.badge{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 6px;border-radius:10px;font-size:var(--text-xs);font-weight:700}.badge-accent{background:var(--accent);color:#0e0c0a}.badge-success{background:var(--success);color:#fff}.badge-danger{background:var(--danger);color:#fff}.chip{display:inline-flex;align-items:center;padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-sm);font-size:var(--text-xs);background:#ffffff14;color:var(--text-secondary)}.avatar{width:40px;height:40px;border-radius:50%;background:var(--bg-elevated);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:var(--text-sm);color:var(--accent);border:2px solid rgba(255,255,255,.1)}.avatar-sm{width:32px;height:32px;font-size:var(--text-xs)}.avatar-lg{width:56px;height:56px;font-size:var(--text-lg)}.action-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-sm)}.action-card{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-sm);padding:var(--space-lg);background:var(--bg-surface);border-radius:var(--radius-lg);cursor:pointer;transition:var(--transition-fast);min-height:100px;border:1px solid rgba(255,255,255,.05)}.action-card:active{transform:scale(.97);background:var(--bg-elevated)}.action-card .action-icon{font-size:28px}.action-card .action-label{font-size:var(--text-sm);font-weight:600;color:var(--text-primary);text-align:center}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-2xl);text-align:center;color:var(--text-muted)}.empty-state-icon{font-size:48px;margin-bottom:var(--space-md);opacity:.5}.game-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:var(--z-overlay);background:var(--bg-deep);display:flex;flex-direction:column;touch-action:none}.game-header{display:flex;justify-content:space-between;align-items:center;padding:var(--space-md);background:var(--bg-base)}.game-title{font-family:var(--font-display);text-transform:uppercase;font-size:var(--text-lg);letter-spacing:.05em}.game-progress{color:var(--text-secondary);font-size:var(--text-sm)}.game-body{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-lg);position:relative;overflow:hidden}.countdown-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:var(--bg-deep);z-index:10}.countdown-number{font-family:var(--font-mono);font-size:120px;font-weight:700;color:var(--accent);animation:pulse 1s ease-in-out}.reaction-screen{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color .1s}.reaction-waiting{background:#8b1a1a}.reaction-ready{background:#1b5e20}.reaction-early{background:var(--danger)}.reaction-result{background:var(--bg-base)}.reaction-text{font-family:var(--font-display);font-size:var(--text-3xl);text-transform:uppercase;color:#fff;-webkit-user-select:none;user-select:none;pointer-events:none;text-align:center}.tap-target{position:absolute;width:44px;height:44px;border-radius:50%;background:var(--accent);box-shadow:var(--shadow-glow);animation:spinIn .2s ease;cursor:pointer;display:flex;align-items:center;justify-content:center}.tap-target:active{transform:scale(.85)}.tap-target-number{font-weight:700;color:#0e0c0a;font-size:var(--text-sm);pointer-events:none}.steady-container{display:flex;flex-direction:column;align-items:center;gap:var(--space-lg)}.steady-circle{width:120px;height:120px;border-radius:50%;border:3px solid var(--accent);display:flex;align-items:center;justify-content:center;transition:transform .05s}.steady-circle-inner{width:12px;height:12px;border-radius:50%;background:var(--accent)}.steady-score{font-family:var(--font-mono);font-size:var(--text-4xl);color:var(--accent)}.steady-instruction{color:var(--text-secondary);text-align:center}.math-problem{font-family:var(--font-mono);font-size:var(--text-4xl);color:var(--text-primary);text-align:center;margin-bottom:var(--space-xl)}.math-input{font-family:var(--font-mono);font-size:var(--text-3xl);text-align:center;width:150px;background:var(--bg-surface)}.math-feedback{font-family:var(--font-display);font-size:var(--text-xl);text-align:center;margin-top:var(--space-md)}.math-feedback.correct{color:var(--success)}.math-feedback.wrong{color:var(--danger);animation:shake .3s}.stroop-word{font-family:var(--font-display);font-size:var(--text-4xl);font-weight:700;text-align:center;margin-bottom:var(--space-xl);text-transform:uppercase}.stroop-buttons{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-md);width:100%;max-width:300px}.stroop-btn{min-height:var(--touch-cta);border-radius:var(--radius-md);border:2px solid rgba(255,255,255,.1);font-weight:700;font-size:var(--text-lg);cursor:pointer;color:#fff;text-transform:uppercase}.stroop-btn:active{transform:scale(.95);opacity:.8}.path-canvas{width:100%;max-width:350px;aspect-ratio:1;border-radius:var(--radius-lg);background:var(--bg-surface);touch-action:none}.game-intro{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:var(--space-xl);gap:var(--space-lg)}.game-intro-name{font-family:var(--font-display);font-size:var(--text-3xl);text-transform:uppercase;color:var(--accent)}.game-intro-instructions{color:var(--text-secondary);font-size:var(--text-base);max-width:280px;line-height:1.6}.game-result{display:flex;flex-direction:column;align-items:center;gap:var(--space-md);padding:var(--space-xl);text-align:center}.game-result-score{font-family:var(--font-mono);font-size:var(--text-4xl);color:var(--accent)}.game-result-unit{font-size:var(--text-sm);color:var(--text-muted);text-transform:uppercase}.game-result-baseline{font-size:var(--text-sm);color:var(--text-secondary)}.game-result-degradation{font-size:var(--text-lg);font-weight:700}.game-result-degradation.better{color:var(--success)}.game-result-degradation.worse{color:var(--danger)}.game-summary{padding:var(--space-xl);text-align:center}.game-summary-title{font-family:var(--font-display);font-size:var(--text-2xl);text-transform:uppercase;color:var(--text-primary);margin-bottom:var(--space-lg)}.game-summary-avg{font-family:var(--font-mono);font-size:var(--text-4xl)}.game-summary-label{color:var(--text-secondary)}