:root{--neon-blue: #00f3ff;--neon-pink: #ff00ff;--neon-green: #00ff66;--neon-orange: #ff9900;--neon-red: #ff3333;--bg-color: #050510;--overlay-color: rgba(0, 0, 20, .85)}*{box-sizing:border-box;-webkit-user-select:none;user-select:none}body{margin:0;padding:0;background-color:var(--bg-color);overflow:hidden;font-family:Rajdhani,sans-serif;color:#fff;height:100vh;width:100vw}#gameCanvas{position:absolute;top:0;left:0;width:100%;height:100%;z-index:1}#scanline{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(to bottom,#fff0,#fff0 50%,#0000001a 50%,#0000001a);background-size:100% 4px;pointer-events:none;z-index:10;opacity:.6}#vignette{position:absolute;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle,transparent 50%,black 100%);pointer-events:none;z-index:11;opacity:.8}#ui-layer{position:absolute;top:0;left:0;width:100%;height:100%;z-index:20;display:flex;justify-content:center;align-items:center;pointer-events:none}.screen{position:absolute;width:100%;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;background:#000000b3;transition:opacity .3s ease;pointer-events:auto}.screen.hidden{opacity:0;pointer-events:none}.screen.active{opacity:1;pointer-events:auto}#hud{background:transparent;pointer-events:none;justify-content:space-between;padding:20px}h1.title{font-family:Orbitron,sans-serif;font-size:5rem;text-align:center;line-height:1;margin-bottom:3rem;color:var(--neon-blue);text-shadow:0 0 10px var(--neon-blue),0 0 20px var(--neon-blue),0 0 40px var(--neon-blue)}.subtitle{font-size:2.5rem;color:var(--neon-pink);text-shadow:0 0 10px var(--neon-pink),0 0 20px var(--neon-pink);letter-spacing:.5rem}.glow-text{text-shadow:0 0 5px currentColor,0 0 10px currentColor}.neon-btn{background:transparent;border:2px solid var(--neon-green);color:var(--neon-green);padding:1rem 3rem;font-family:Orbitron,sans-serif;font-size:1.5rem;cursor:pointer;transition:all .2s;text-shadow:0 0 5px var(--neon-green);box-shadow:0 0 5px var(--neon-green),inset 0 0 5px var(--neon-green);position:relative;overflow:hidden}.neon-btn:hover{background:var(--neon-green);color:#000;box-shadow:0 0 20px var(--neon-green),inset 0 0 10px var(--neon-green)}.controls-hint{margin-top:2rem;text-align:center;font-size:1.2rem;color:#aaa}.top-bar,.bottom-bar{width:100%;display:flex;justify-content:space-between;align-items:flex-end}.bottom-bar{align-items:flex-end}.label{font-family:Orbitron,sans-serif;font-size:.8rem;color:#888;display:block;margin-bottom:5px}#score-display,#level-display{font-size:2.5rem;font-family:Orbitron,sans-serif}.stats-container{display:flex;flex-direction:column;gap:15px;width:300px}#lives-display{font-size:1.5rem;letter-spacing:5px}.xp-bar-container{width:100%;height:10px;background:#333;border:1px solid #555;border-radius:5px;overflow:hidden;position:relative}#xp-bar-fill{height:100%;background:linear-gradient(90deg,var(--neon-pink),var(--neon-blue));box-shadow:0 0 10px var(--neon-pink);transition:width .3s ease-out}.abilities-container{display:flex;gap:20px}.ability-slot{width:60px;height:60px;border:2px solid #555;border-radius:10px;display:flex;justify-content:center;align-items:center;position:relative;background:#00000080;font-family:Orbitron,sans-serif}.ability-slot .key{position:absolute;top:-10px;left:50%;transform:translate(-50%);background:#000;padding:0 5px;font-size:.7rem;color:#fff;border:1px solid #555}#dash-slot{border-color:var(--neon-blue);color:var(--neon-blue)}#shock-slot{border-color:var(--neon-orange);color:var(--neon-orange)}.ability-slot .count{font-size:1.5rem}.cards-container{display:flex;gap:30px;margin-top:3rem}.upgrade-card{width:200px;height:300px;border:2px solid var(--neon-blue);background:#000a1ee6;display:flex;flex-direction:column;align-items:center;padding:20px;cursor:pointer;transition:transform .2s,box-shadow .2s;text-align:center}.upgrade-card:hover{transform:translateY(-10px);box-shadow:0 0 20px var(--neon-blue);background:#001432}.upgrade-card h3{color:var(--neon-green);margin-bottom:2rem}.upgrade-card p{font-size:.9rem;color:#ddd;line-height:1.4}.hidden{display:none!important}