:root{--black:#0D0D0D;--night:#1A1A2E;--magenta:#FF2D7B;--cyan:#00F0FF;--violet:#7B2DFF;--red-na:#CC2233;--rust:#8B4513;--orange:#FF6600;--green:#00FF66;--white:#f0f0f0;--yellow:#FFD700;--font-display:'Orbitron',sans-serif;--font-mono:'Share Tech Mono',monospace}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html,body{width:100%;height:100%;overflow:hidden;background:var(--black);font-family:var(--font-mono);touch-action:none;user-select:none;-webkit-user-select:none;cursor:crosshair}
#gameCanvas{display:block;position:absolute;top:0;left:0;width:100%;height:100%;z-index:1}
#crt-overlay{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:10;background:repeating-linear-gradient(0deg,rgba(0,0,0,0.04) 0px,rgba(0,0,0,0.04) 1px,transparent 1px,transparent 3px)}
#crt-overlay::after{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background:radial-gradient(ellipse at center,transparent 55%,rgba(0,0,0,0.5) 100%)}
#hud{position:fixed;top:0;left:0;right:0;padding:14px 22px;display:flex;justify-content:space-between;align-items:flex-start;z-index:20;pointer-events:none}
.hud-left,.hud-right,.hud-center{display:flex;flex-direction:column;gap:4px}
.hud-center{align-items:center;position:absolute;left:50%;transform:translateX(-50%)}
.hud-right{align-items:flex-end}
.hud-score{font-family:var(--font-display);font-size:24px;font-weight:900;color:var(--cyan);text-shadow:0 0 12px rgba(0,240,255,0.7),0 0 40px rgba(0,240,255,0.2);letter-spacing:3px}
.hud-kills{font-size:13px;color:var(--magenta);text-shadow:0 0 6px rgba(255,45,123,0.4)}
.hud-coins{font-size:13px;color:var(--yellow);text-shadow:0 0 6px rgba(255,215,0,0.4)}
.hud-combo{font-family:var(--font-display);font-size:18px;font-weight:700;color:var(--magenta);text-shadow:0 0 14px rgba(255,45,123,0.7);opacity:0;transition:opacity 0.2s}
.hud-combo.active{opacity:1}
.hud-speed{font-family:var(--font-display);font-size:12px;font-weight:700;color:var(--white);opacity:0.5;letter-spacing:1px;margin-top:2px}
.hud-bonus{font-family:var(--font-display);font-size:11px;font-weight:700;color:var(--yellow);text-shadow:0 0 8px rgba(255,215,0,0.6);min-height:14px;letter-spacing:1px}
.hud-wave{font-family:var(--font-display);font-size:14px;font-weight:700;color:var(--violet);text-shadow:0 0 10px rgba(123,45,255,0.6)}
.hud-biome{font-size:11px;color:#666;letter-spacing:2px}
.hud-rust{display:flex;gap:5px;align-items:center;margin-top:4px}
.rust-pip{width:16px;height:16px;border:2px solid var(--red-na);background:transparent;transition:all 0.3s;border-radius:2px}
.rust-pip.filled{background:var(--red-na);box-shadow:0 0 8px rgba(204,34,51,0.7)}
.rust-pip.empty{border-color:#3a1a1a;background:#1a0a0a}
.hud-powerup{font-size:12px;color:var(--orange);text-shadow:0 0 6px rgba(255,102,0,0.5);min-height:16px}
.hud-dash{font-size:12px;color:#444;transition:color 0.3s}
.hud-dash.ready{color:var(--cyan);text-shadow:0 0 8px rgba(0,240,255,0.6)}
.hud-drift{font-size:14px;font-weight:700;font-family:var(--font-display);color:var(--orange);text-shadow:0 0 10px rgba(255,102,0,0.6);min-height:18px;letter-spacing:2px}
#wave-announce{position:fixed;top:45%;left:50%;transform:translate(-50%,-50%);z-index:50;font-family:var(--font-display);font-size:clamp(30px,7vw,52px);font-weight:900;color:var(--magenta);text-shadow:0 0 24px rgba(255,45,123,0.9),0 0 80px rgba(255,45,123,0.3);letter-spacing:8px;pointer-events:none;opacity:0;text-align:center;line-height:1.4}
#kill-announce{position:fixed;top:60%;left:50%;transform:translate(-50%,-50%);z-index:50;font-family:var(--font-display);font-size:clamp(18px,4vw,28px);font-weight:700;color:var(--cyan);text-shadow:0 0 16px rgba(0,240,255,0.8);letter-spacing:4px;pointer-events:none;opacity:0}
#achievement-toast{position:fixed;top:80px;right:20px;z-index:60;font-family:var(--font-display);font-size:13px;font-weight:700;color:var(--yellow);text-shadow:0 0 10px rgba(255,215,0,0.6);padding:10px 18px;border:1px solid rgba(255,215,0,0.3);background:rgba(13,13,13,0.9);border-radius:4px;pointer-events:none;opacity:0;backdrop-filter:blur(4px)}
#damage-flash{position:fixed;top:0;left:0;width:100%;height:100%;z-index:15;pointer-events:none;opacity:0}
#title-screen{position:fixed;top:0;left:0;width:100%;height:100%;z-index:100;display:flex;flex-direction:column;align-items:center;justify-content:center;background:radial-gradient(ellipse at 50% 30%,#1a1a3e 0%,#0d0d0d 70%)}
#title-screen::before{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background:repeating-linear-gradient(0deg,rgba(0,0,0,0.06) 0px,rgba(0,0,0,0.06) 1px,transparent 1px,transparent 3px),radial-gradient(ellipse at center,transparent 50%,rgba(0,0,0,0.5) 100%);pointer-events:none}
.title-logo{font-family:var(--font-display);font-weight:900;text-align:center}
.title-mx5{font-size:clamp(52px,11vw,90px);color:var(--cyan);text-shadow:0 0 24px rgba(0,240,255,0.7),0 0 80px rgba(0,240,255,0.25),0 4px 0 #005566;letter-spacing:8px;line-height:1}
.title-deadroad{font-size:clamp(34px,8vw,62px);color:var(--magenta);text-shadow:0 0 24px rgba(255,45,123,0.7),0 0 80px rgba(255,45,123,0.25),0 3px 0 #661133;letter-spacing:5px;line-height:1.1}
.title-sub{font-size:12px;color:#555;letter-spacing:5px;text-transform:uppercase;margin-top:14px}
.color-picker{display:flex;gap:10px;margin-top:20px}
.color-option{width:36px;height:36px;border-radius:50%;border:3px solid #333;cursor:pointer;transition:all 0.2s}
.color-option:hover{border-color:#888;transform:scale(1.1)}
.color-option.selected{border-color:var(--cyan);box-shadow:0 0 12px rgba(0,240,255,0.5);transform:scale(1.15)}
.title-start{font-size:16px;color:var(--white);margin-top:30px;animation:blink 1.2s ease-in-out infinite;cursor:pointer;pointer-events:all}
.title-controls{font-size:11px;color:#444;margin-top:16px;text-align:center;line-height:2}
.title-hint{color:var(--magenta);font-size:10px;letter-spacing:2px}
.title-highscore{font-family:var(--font-display);font-size:14px;color:var(--cyan);opacity:0.5;margin-top:20px}
.title-leaderboard{font-size:12px;color:var(--violet);margin-top:8px;cursor:pointer;pointer-events:all;opacity:0.6}
.title-leaderboard:hover{opacity:1}
.title-devnote{font-size:10px;color:var(--cyan);opacity:0.45;margin-top:14px;letter-spacing:2px;text-align:center;text-shadow:0 0 8px rgba(0,240,255,0.3)}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0.15}}
#shop-screen{position:fixed;top:0;left:0;width:100%;height:100%;z-index:100;display:none;flex-direction:column;align-items:center;justify-content:center;background:rgba(13,13,13,0.92);backdrop-filter:blur(6px);pointer-events:all}
.shop-title{font-family:var(--font-display);font-size:clamp(28px,6vw,42px);font-weight:900;color:var(--yellow);text-shadow:0 0 20px rgba(255,215,0,0.6);letter-spacing:6px;margin-bottom:8px}
.shop-coins{font-family:var(--font-display);font-size:18px;color:var(--yellow);margin-bottom:24px}
.shop-cards{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;max-width:600px}
.shop-card{width:160px;padding:16px 12px;background:rgba(26,26,46,0.9);border:2px solid #333;border-radius:8px;cursor:pointer;transition:all 0.2s;display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center}
.shop-card:hover{border-color:var(--cyan);transform:translateY(-4px);box-shadow:0 4px 20px rgba(0,240,255,0.15)}
.shop-card.cant-afford{opacity:0.35;pointer-events:none}
.shop-card .card-icon{font-size:28px}
.shop-card .card-name{font-family:var(--font-display);font-size:12px;font-weight:700;color:var(--white);letter-spacing:1px}
.shop-card .card-desc{font-size:10px;color:#888;line-height:1.4}
.shop-card .card-cost{font-family:var(--font-display);font-size:12px;color:var(--yellow);margin-top:4px}
.shop-card .card-level{font-size:9px;color:var(--cyan);letter-spacing:1px}
.shop-skip{font-size:14px;color:#666;margin-top:28px;cursor:pointer;transition:color 0.2s}
.shop-skip:hover{color:var(--white)}
#gameover-screen{position:fixed;top:0;left:0;width:100%;height:100%;z-index:100;display:none;flex-direction:column;align-items:center;justify-content:center;background:rgba(13,13,13,0.88);backdrop-filter:blur(4px)}
.go-title{font-family:var(--font-display);font-size:clamp(38px,9vw,64px);font-weight:900;color:var(--magenta);text-shadow:0 0 24px rgba(255,45,123,0.7);letter-spacing:5px}
.go-score{font-family:var(--font-display);font-size:26px;color:var(--cyan);margin-top:20px}
.go-details{font-size:13px;color:#666;margin-top:8px}
.go-best{font-family:var(--font-display);font-size:16px;color:var(--cyan);opacity:0.6;margin-top:16px}
.go-newrecord{font-family:var(--font-display);font-size:20px;font-weight:700;color:var(--cyan);text-shadow:0 0 18px rgba(0,240,255,0.9);margin-top:12px;animation:blink 0.5s ease-in-out infinite;display:none}
.go-name-input{display:flex;gap:8px;margin-top:12px}
.go-name-input input{background:#1a1a2e;border:2px solid var(--cyan);color:var(--cyan);font-family:var(--font-mono);font-size:14px;padding:6px 12px;text-transform:uppercase;outline:none;width:140px;text-align:center;border-radius:4px}
.go-name-input button{background:var(--cyan);color:var(--black);font-family:var(--font-display);font-size:12px;font-weight:700;padding:8px 14px;border:none;cursor:pointer;border-radius:4px}
.go-retry{font-size:16px;color:var(--white);margin-top:30px;animation:blink 1.2s ease-in-out infinite;cursor:pointer;pointer-events:all}
#leaderboard-modal{position:fixed;top:0;left:0;width:100%;height:100%;z-index:110;display:none;flex-direction:column;align-items:center;justify-content:center;background:rgba(13,13,13,0.95);backdrop-filter:blur(6px)}
.lb-title{font-family:var(--font-display);font-size:clamp(24px,5vw,36px);font-weight:900;color:var(--violet);letter-spacing:4px;margin-bottom:20px}
.lb-list{width:min(400px,85vw);max-height:50vh;overflow-y:auto}
.lb-entry{display:flex;justify-content:space-between;padding:8px 12px;border-bottom:1px solid #222;font-size:13px}
.lb-entry .lb-rank{color:var(--yellow);width:30px}
.lb-entry .lb-name{color:var(--white);flex:1}
.lb-entry .lb-score{color:var(--cyan);text-align:right}
.lb-close{font-size:14px;color:#666;margin-top:24px;cursor:pointer}.lb-close:hover{color:var(--white)}
#mobile-controls{display:none;position:fixed;bottom:24px;left:0;right:0;z-index:30;justify-content:center;gap:18px;pointer-events:none}
.mobile-btn{width:58px;height:58px;border-radius:50%;border:2px solid rgba(0,240,255,0.3);background:rgba(0,240,255,0.06);display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:9px;font-weight:700;color:var(--cyan);pointer-events:all;transition:all 0.1s;backdrop-filter:blur(4px)}
.mobile-btn:active{background:rgba(0,240,255,0.25);transform:scale(0.9)}
.mobile-btn.dash-btn{border-color:rgba(255,45,123,0.4);color:var(--magenta)}
.mobile-btn.horn-btn{border-color:rgba(255,215,0,0.4);color:var(--yellow)}
@media(pointer:coarse){#mobile-controls{display:flex}body{cursor:default}}
@media(max-width:600px){.hud-score{font-size:18px}.rust-pip{width:12px;height:12px}#hud{padding:8px 12px}.shop-card{width:130px;padding:12px 8px}}