:root{--bg-primary: #0f0f23;--bg-secondary: #1a1a2e;--bg-tertiary: #16213e;--accent-primary: #00d9ff;--accent-secondary: #ff6b6b;--accent-gradient: linear-gradient(135deg, #00d9ff 0%, #00ff88 100%);--text-primary: #ffffff;--text-secondary: rgba(255, 255, 255, .7);--text-muted: rgba(255, 255, 255, .4);--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 20px;--radius-full: 50%;--shadow-glow: 0 0 20px rgba(0, 217, 255, .3);--shadow-card: 0 8px 32px rgba(0, 0, 0, .3)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html,body{width:100%;height:100%;overflow:hidden;font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;touch-action:none;user-select:none;-webkit-user-select:none}#gameCanvas{position:fixed;top:0;left:0;width:100%;height:100%;display:block}.screen{position:fixed;top:0;left:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:#0f0f23f2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:100;animation:fadeIn .3s ease}.screen.hidden{display:none}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.menu-container,.death-container{text-align:center;padding:var(--spacing-xl);background:var(--bg-secondary);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);max-width:400px;width:90%}.game-title{font-size:3rem;font-weight:800;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--spacing-xs)}.game-subtitle{color:var(--text-secondary);font-size:1.1rem;margin-bottom:var(--spacing-xl)}#playerNameInput{width:100%;padding:var(--spacing-md) var(--spacing-lg);font-size:1.1rem;border:2px solid var(--bg-tertiary);border-radius:var(--radius-md);background:var(--bg-primary);color:var(--text-primary);outline:none;transition:border-color .2s,box-shadow .2s;margin-bottom:var(--spacing-lg)}#playerNameInput:focus{border-color:var(--accent-primary);box-shadow:var(--shadow-glow)}#playerNameInput::placeholder{color:var(--text-muted)}.skin-selector{margin-bottom:var(--spacing-lg);padding:var(--spacing-md);background:var(--bg-primary);border-radius:var(--radius-md)}.skin-label{font-size:.9rem;color:var(--text-secondary);margin-bottom:var(--spacing-sm)}.color-picker{display:flex;justify-content:center;gap:6px;flex-wrap:wrap;margin-bottom:var(--spacing-md)}.color-option{width:32px;height:32px;border-radius:var(--radius-full);cursor:pointer;border:2px solid transparent;transition:transform .2s,border-color .2s}.color-option:hover{transform:scale(1.1)}.color-option.selected{border-color:#fff;box-shadow:0 0 10px #ffffff80}.pattern-picker{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-bottom:var(--spacing-md)}.pattern-option{padding:6px 12px;font-size:.75rem;background:var(--bg-tertiary);border:2px solid transparent;border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;transition:all .2s}.pattern-option:hover{background:var(--bg-secondary);color:var(--text-primary)}.pattern-option.selected{border-color:var(--accent-primary);color:var(--accent-primary);background:#00d9ff1a}#skinPreview{display:block;margin:0 auto;background:var(--bg-tertiary);border-radius:var(--radius-sm)}.btn-play{width:100%;padding:var(--spacing-md) var(--spacing-xl);font-size:1.3rem;font-weight:700;color:var(--bg-primary);background:var(--accent-gradient);border:none;border-radius:var(--radius-md);cursor:pointer;transition:transform .2s,box-shadow .2s;display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm)}.btn-play:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow)}.btn-play:active{transform:translateY(0)}.controls-hint{margin-top:var(--spacing-lg);color:var(--text-muted);font-size:.85rem}.controls-hint p{margin:var(--spacing-xs) 0}.death-title{font-size:2rem;color:var(--accent-secondary);margin-bottom:var(--spacing-lg)}.final-score,.final-length{display:flex;justify-content:space-between;padding:var(--spacing-md);background:var(--bg-primary);border-radius:var(--radius-sm);margin-bottom:var(--spacing-sm)}.final-score span:last-child,.final-length span:last-child{font-weight:700;color:var(--accent-primary)}.death-container .btn-play{margin-top:var(--spacing-lg)}#hud{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:50}#hud.hidden{display:none}#hud>*{pointer-events:auto}#leaderboard{position:absolute;top:var(--spacing-md);right:var(--spacing-md);background:#1a1a2ee6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:var(--spacing-md);border-radius:var(--radius-md);min-width:180px;transition:all .3s ease}#leaderboard.collapsed{min-width:auto;width:auto;padding:var(--spacing-sm) var(--spacing-md)}.leaderboard-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-sm);gap:var(--spacing-md)}#leaderboard.collapsed .leaderboard-header{margin-bottom:0}#leaderboard h3{font-size:.9rem;color:var(--text-secondary);margin:0;white-space:nowrap}#leaderboard.collapsed h3{display:none}#leaderboard.collapsed h3{display:block}.toggle-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;font-size:.8rem;padding:4px;transition:transform .3s}#leaderboard.collapsed .toggle-btn{transform:rotate(-90deg)}#leaderboardList{list-style:none;font-size:.85rem;max-height:200px;overflow-y:auto;transition:opacity .3s}#leaderboard.collapsed #leaderboardList{display:none}#leaderboardList li{padding:var(--spacing-xs) 0;display:flex;justify-content:space-between;border-bottom:1px solid rgba(255,255,255,.1)}#leaderboardList li:last-child{border-bottom:none}#leaderboardList li.current-player{color:var(--accent-primary);font-weight:600}#playerStats{position:absolute;top:var(--spacing-md);left:var(--spacing-md);display:flex;gap:var(--spacing-md)}.stat{background:#1a1a2ee6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-sm);display:flex;flex-direction:column;align-items:center}.stat-label{font-size:.7rem;color:var(--text-muted);text-transform:uppercase}.stat-value{font-size:1.2rem;font-weight:700;color:var(--accent-primary)}#powerUpIndicator{position:absolute;top:80px;left:var(--spacing-md);background:#1a1a2ee6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-sm);display:flex;align-items:center;gap:var(--spacing-sm);animation:pulse 1s infinite}#powerUpIndicator.hidden{display:none}@keyframes pulse{0%,to{opacity:1}50%{opacity:.7}}#minimap{position:absolute;bottom:var(--spacing-md);left:var(--spacing-md);width:150px;height:150px;background:#1a1a2ecc;border:2px solid var(--bg-tertiary);border-radius:var(--radius-sm)}.icon-btn{position:absolute;bottom:var(--spacing-md);right:var(--spacing-md);width:44px;height:44px;background:#1a1a2ee6;border:none;border-radius:var(--radius-sm);color:var(--text-primary);font-size:1.2rem;cursor:pointer;transition:background .2s}.icon-btn:hover{background:var(--bg-tertiary)}#mobileControls{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:60}#mobileControls.hidden{display:none}#joystickZone{position:absolute;bottom:20px;left:20px;width:150px;height:150px;background:#ffffff1a;border:2px solid rgba(255,255,255,.2);border-radius:var(--radius-full);pointer-events:auto}.boost-btn{position:absolute;bottom:40px;right:40px;width:80px;height:80px;background:#ff6b6b4d;border:3px solid var(--accent-secondary);border-radius:var(--radius-full);color:#fff;font-size:2rem;cursor:pointer;pointer-events:auto;transition:transform .1s,background .1s}.boost-btn:active{transform:scale(.95);background:#ff6b6b80}#loadingOverlay{position:fixed;top:0;left:0;width:100%;height:100%;background:var(--bg-primary);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-lg);z-index:200}#loadingOverlay.hidden{display:none}.loader{width:50px;height:50px;border:4px solid var(--bg-tertiary);border-top-color:var(--accent-primary);border-radius:var(--radius-full);animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 768px){.game-title{font-size:2rem}#leaderboard{top:auto;bottom:var(--spacing-md);right:var(--spacing-md);min-width:140px;font-size:.8rem}#minimap{width:100px;height:100px}#playerStats{top:var(--spacing-sm);left:var(--spacing-sm)}.stat{padding:var(--spacing-xs) var(--spacing-sm)}.stat-value{font-size:1rem}}@media (max-width: 480px){.menu-container{padding:var(--spacing-lg)}.game-title{font-size:1.8rem}.controls-hint,#minimap{display:none}}