@import"https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Press+Start+2P&display=swap";:root{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.5;font-weight:400;--primary-color: #2563eb;--secondary-color: #10b981;--danger-color: #ef4444;--warning-color: #f59e0b;--dark-bg: #1f2937;--light-bg: #f8fafc;--border-color: #e5e7eb}*{margin:0;padding:0;box-sizing:border-box}body{background:linear-gradient(135deg,#667eea,#764ba2);height:100vh;overflow:hidden;margin:0;padding:0}#app{height:100vh;display:flex;flex-direction:column;overflow:hidden}.game-header{display:flex;justify-content:space-between;align-items:center;padding:12px 20px;background:#0000001a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.game-title{font-family:Orbitron,monospace;margin:0 auto;letter-spacing:2px;background:linear-gradient(135deg,#fbbf24,#f59e0b);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-size:2.5rem;font-weight:900;text-shadow:0 0 30px rgba(251,191,36,.3)}.texture-controls,.difficulty-controls{display:flex;gap:8px}.texture-btn,.level-btn{background:#fff3;border:2px solid rgba(255,255,255,.3);border-radius:8px;padding:6px;font-size:18px;cursor:pointer;transition:all .3s ease;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);color:#fff;width:36px;height:36px;display:flex;align-items:center;justify-content:center}.texture-btn:hover,.level-btn:hover{background:#ffffff4d;border-color:#ffffff80;transform:translateY(-2px);box-shadow:0 4px 12px #0003}.texture-btn.active,.level-btn.active{background:#fff6;border-color:#ffffffb3;box-shadow:0 0 15px #ffffff4d}.game-container{flex:1;background:#fff;display:flex;align-items:center;justify-content:center}#gameCanvas{display:block;background:#f0f9ff;width:100vw;height:calc(100vh - 140px);border:8px solid #10b981;box-sizing:border-box}.game-footer{background:#fff;padding:12px 20px;border-top:3px solid var(--border-color)}.score-section{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px;font-family:"Press Start 2P",monospace;font-size:12px}.left-score-area{display:flex;align-items:center;gap:20px}.user-score{color:#2563eb;text-align:center}.highest-score{color:#ef4444;text-align:center}.sound-controls-footer{display:flex;gap:10px}.toggle-btn{background:#2563eb1a;border:2px solid rgba(37,99,235,.3);border-radius:8px;padding:8px 16px;font-size:14px;cursor:pointer;transition:all .3s ease;color:var(--primary-color);display:flex;align-items:center;gap:8px;font-weight:500}.toggle-btn:hover{background:#2563eb33;border-color:#2563eb80;transform:translateY(-1px)}.toggle-btn.active{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.toggle-btn.active:hover{background:#1d4ed8;border-color:#1d4ed8}.toggle-icon{font-size:16px}.toggle-text{font-size:14px}kbd{background:#374151;color:#fff;padding:4px 8px;border-radius:6px;font-family:monospace;font-size:.9rem;margin:0 2px;box-shadow:0 2px 4px #0000001a}.game-banner{position:fixed;bottom:0;left:0;width:100%;background:#000000d9;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:8px 16px;z-index:1000;border-top:3px solid var(--primary-color);display:none}.game-banner-content{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px}.game-banner-message{flex:1;text-align:center}.game-banner h2{font-size:1.4rem;margin-bottom:4px;color:#fff;font-weight:700}.game-banner p{font-size:.9rem;margin:0;color:#ffffffe6;white-space:pre-line;line-height:1.4}.game-banner .restart-btn{background:var(--primary-color);color:#fff;border:none;padding:8px 16px;border-radius:8px;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .3s ease;flex-shrink:0}.game-banner .restart-btn:hover{background:#1d4ed8;transform:translateY(-1px);box-shadow:0 4px 12px #2563eb66}.game-banner .space-hint{font-size:.75rem;color:#ffffffb3;margin-top:4px}@media(max-width:768px){.game-banner-content{flex-direction:column;text-align:center;gap:8px}.game-banner h2{font-size:1.2rem}.game-banner p{font-size:.8rem}}.ai-indicator{position:fixed;top:20px;left:20px;background:#ffa500f2;border:2px solid rgba(255,255,255,.8);border-radius:12px;padding:12px 16px;z-index:1000;box-shadow:0 4px 12px #00000026;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:none}.ai-indicator-content{display:flex;align-items:center;gap:12px}.ai-icon{font-size:24px;animation:pulse 2s infinite}.ai-text{color:#fff}.ai-title{font-weight:700;font-size:14px;line-height:1.2}.ai-subtitle{font-size:11px;opacity:.9;line-height:1.2}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.info-modal{display:none;position:fixed;z-index:2000;left:0;top:0;width:100%;height:100%;background-color:#000c;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.info-modal-content{background:linear-gradient(135deg,#667eea,#764ba2);margin:3% auto;padding:0;border-radius:20px;width:98%;max-width:900px;box-shadow:0 25px 50px -12px #00000080;position:relative;overflow:hidden}.info-modal-close{position:absolute;top:15px;right:20px;background:#fff3;border:none;color:#fff;font-size:28px;font-weight:700;cursor:pointer;border-radius:50%;width:40px;height:40px;display:flex;align-items:center;justify-content:center;transition:all .3s ease}.info-modal-close:hover{background:#ffffff4d;transform:scale(1.1)}.info-modal-header{background:#ffffff1a;padding:20px;text-align:center;border-bottom:1px solid rgba(255,255,255,.2)}.info-modal-header h2{font-family:Orbitron,monospace;font-size:2.5rem;font-weight:900;color:#fff;text-shadow:0 0 20px rgba(255,255,255,.5);margin:0;letter-spacing:2px}.info-modal-body{padding:40px;text-align:center}.developer-info{background:#ffffff1a;border-radius:15px;padding:30px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.2)}.developer-info p{color:#fff;font-size:1.2rem;margin:15px 0;font-weight:500}.developer-info strong{color:#fbbf24;font-weight:700}.developer-info a{color:#60a5fa;text-decoration:none;transition:all .3s ease;font-weight:600}.developer-info a:hover{color:#93c5fd;text-shadow:0 0 10px rgba(147,197,253,.5)}.game-tips{background:#ffffff1a;border-radius:15px;padding:30px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.2);margin-top:20px}.game-tips h3{color:#fbbf24;font-size:1.5rem;margin-bottom:20px;font-weight:700;text-align:center}.tips-content p{color:#fff;font-size:1rem;margin:6px 0;font-weight:400;text-align:left}.tips-content kbd{background:#0000004d;color:#fbbf24;padding:4px 8px;border-radius:6px;font-family:monospace;font-size:.9rem;margin:0 2px;box-shadow:0 2px 4px #0003;border:1px solid rgba(251,191,36,.3)}@media(max-width:768px){.game-header h1{font-size:2rem}.snake-status{flex-direction:column;align-items:center}.ai-snakes{justify-content:center}#gameCanvas{width:100%;height:auto}}