:root{--bg-dark: #0b0c10;--panel-bg: rgba(31, 40, 51, .85);--neon-cyan: #66fcf1;--neon-cyan-dim: #45a29e;--neon-pink: #ff4081;--text-light: #c5c6c7}body{margin:0;padding:0;background-color:var(--bg-dark);color:var(--text-light);font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;overflow:hidden;touch-action:none}body.shake{animation:shake .3s cubic-bezier(.36,.07,.19,.97) both}@keyframes shake{10%,90%{transform:translate3d(-2px,0,0)}20%,80%{transform:translate3d(4px,0,0)}30%,50%,70%{transform:translate3d(-8px,0,0)}40%,60%{transform:translate3d(8px,0,0)}}.app-container{width:100vw;height:100vh;position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center}.cloud-indicator{position:absolute;top:10px;right:10px;background:#00000080;padding:4px 10px;border-radius:20px;font-size:12px;display:flex;align-items:center;gap:6px;z-index:100;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.1)}.spin{animation:spin 2s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.screen{width:100%;max-width:500px;height:100%;position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center}.neon-text{font-size:3rem;font-weight:900;font-style:italic;color:#fff;margin:0;text-shadow:0 0 5px #fff,0 0 10px #fff,0 0 20px var(--neon-cyan),0 0 40px var(--neon-cyan),0 0 80px var(--neon-cyan);letter-spacing:2px}.sub-title{color:var(--neon-pink);font-size:1.2rem;letter-spacing:4px;text-shadow:0 0 10px var(--neon-pink);margin-top:10px}.start-screen{background:radial-gradient(circle at center,#1f2833,#0b0c10)}.title-container{text-align:center;margin-bottom:40px}.high-score-display{display:flex;align-items:center;gap:10px;font-size:1.5rem;font-weight:700;color:gold;background:#ffd7001a;padding:10px 20px;border-radius:30px;border:1px solid rgba(255,215,0,.3);margin-bottom:30px}.controls-hint{background:var(--panel-bg);padding:20px;border-radius:15px;font-size:.9rem;line-height:1.8;margin-bottom:40px;border:1px solid var(--neon-cyan-dim);box-shadow:0 0 15px #66fcf11a}.btn-primary{background:transparent;color:var(--neon-cyan);border:2px solid var(--neon-cyan);padding:15px 40px;font-size:1.2rem;font-weight:700;border-radius:30px;cursor:pointer;display:flex;align-items:center;gap:10px;transition:all .3s ease;box-shadow:0 0 15px #66fcf14d,inset 0 0 10px #66fcf133;text-transform:uppercase;letter-spacing:2px}.btn-primary:hover{background:var(--neon-cyan);color:var(--bg-dark);box-shadow:0 0 30px var(--neon-cyan)}.game-screen{justify-content:space-between;padding:20px 0}.game-area{position:relative;width:100%;flex:1;background:#111;overflow:hidden;border-top:2px solid var(--neon-pink);border-bottom:2px solid var(--neon-pink);box-shadow:inset 0 0 50px #000c}.track-bg-layer{position:absolute;top:-100%;left:0;width:100%;height:200%;background-size:cover;background-position:center;animation:scrollBg linear infinite;opacity:.6;filter:saturate(1.5) contrast(1.2)}@keyframes scrollBg{0%{transform:translateY(0)}to{transform:translateY(50%)}}.fallback-bg{font-size:5rem;text-align:center;margin-top:50%;opacity:.2}.dynamic-track-svg{position:absolute;top:0;left:0;width:100%;height:100%;z-index:1;pointer-events:none}.track-line{filter:drop-shadow(0 0 5px var(--neon-cyan))}.player-car{position:absolute;width:60px;height:100px;transform-origin:center center;z-index:10;display:flex;justify-content:center;align-items:center;margin-left:-30px}.car-img{width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 10px 10px rgba(0,0,0,.5))}.fallback-car{font-size:3rem;transform:rotate(90deg)}.invincible{animation:blink .2s infinite alternate}@keyframes blink{0%{opacity:1}to{opacity:.3}}.drift-angle-indicator{position:absolute;width:120px;height:120px;border-radius:50%;border:2px dashed rgba(255,64,129,.5);z-index:-1;pointer-events:none}.angle-arc{position:absolute;top:0;left:50%;width:4px;height:50%;background:var(--neon-pink);transform-origin:bottom center;box-shadow:0 0 10px var(--neon-pink)}.drift-particles{position:absolute;bottom:-20px;width:80px;height:80px;z-index:5;pointer-events:none}.drift-particles img{width:100%;height:100%;object-fit:cover;mix-blend-mode:screen}.fallback-particle{font-size:2rem;position:absolute;bottom:0}.touch-zone{position:absolute;top:0;height:100%;width:50%;z-index:20}.touch-zone.left{left:0}.touch-zone.right{right:0}.hud{width:100%;padding:0 20px;box-sizing:border-box;display:flex;justify-content:space-between;align-items:center;z-index:30}.top-hud{margin-bottom:10px}.bottom-hud{margin-top:10px;background:var(--panel-bg);padding:15px 20px;border-radius:20px 20px 0 0;border-top:1px solid var(--neon-cyan-dim)}.hud-item{display:flex;align-items:center;gap:8px;background:#0009;padding:8px 15px;border-radius:20px;font-weight:700;font-size:1.1rem;border:1px solid rgba(255,255,255,.1)}.lives-box{gap:4px}.drift-target{flex:1;margin-right:20px}.drift-target .label{font-size:.8rem;color:var(--neon-cyan);margin-bottom:5px;text-transform:uppercase}.progress-bar{width:100%;height:8px;background:#333;border-radius:4px;overflow:hidden;position:relative}.progress-fill{height:100%;background:linear-gradient(90deg,var(--neon-cyan),var(--neon-pink));transition:width .3s ease;box-shadow:0 0 10px var(--neon-pink)}.drift-target .text{font-size:.9rem;margin-top:5px;text-align:right;font-weight:700}.timer-box{font-size:1.5rem;font-weight:700;font-family:monospace;text-shadow:0 0 5px currentColor;margin-right:20px}.speedometer{position:relative;width:80px;height:50px;display:flex;flex-direction:column;align-items:center}.speed-svg{width:100%;height:100%;overflow:visible}.speed-needle{position:absolute;bottom:0;left:50%;width:4px;height:35px;background:var(--neon-pink);transform-origin:bottom center;border-radius:2px;box-shadow:0 0 5px var(--neon-pink);transition:transform .1s ease-out}.speed-text{position:absolute;bottom:-15px;font-size:.8rem;text-align:center;font-weight:700;line-height:1}.speed-text span{font-size:.6rem;color:#888}.gameover-screen,.transition-screen{background:#0b0c10f2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.final-stats{background:var(--panel-bg);padding:30px;border-radius:20px;width:80%;margin-top:30px;border:1px solid rgba(255,255,255,.1)}.stat-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px;font-size:1.2rem;border-bottom:1px dashed #333;padding-bottom:10px}.stat-row:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.new-record-badge{margin-top:-15px;background:#ff4081;color:#fff;padding:5px 15px;border-radius:20px;font-weight:700;animation:pulse 1s infinite;box-shadow:0 0 20px #ff4081}@keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.1)}to{transform:scale(1)}}