:root{--primary-gradient:linear-gradient(135deg, #00f3ff 0%, #0066ff 100%);--danger-gradient:linear-gradient(135deg, #ff0055 0%, #ff5500 100%);--bg-primary:#1c1c4c;--text-primary:#ffffff;--text-secondary:#a0a0ff;--hud-bg:rgba(5, 5, 20, 0.6);--hud-border:rgba(0, 243, 255, 0.3);--font-heading:'Outfit',sans-serif;--font-ui:'Poppins',sans-serif}*{margin:0;padding:0;box-sizing:border-box}body,html{width:100%;height:100%;overflow:hidden;background:radial-gradient(ellipse at center,#53538c 0,#2d2d87 100%);font-family:var(--font-ui);color:var(--text-primary);position:relative}body::before{content:'';position:absolute;width:100%;height:100%;background-image:radial-gradient(2px 2px at 20px 30px,#fff,transparent),radial-gradient(2px 2px at 60px 70px,#fff,transparent),radial-gradient(1px 1px at 50px 50px,#fff,transparent),radial-gradient(1px 1px at 130px 80px,#fff,transparent),radial-gradient(2px 2px at 90px 10px,#fff,transparent);background-repeat:repeat;background-size:200px 200px;animation:3s infinite twinkle;pointer-events:none;z-index:0}@keyframes twinkle{0%,100%{opacity:1}50%{opacity:.5}}#game-container{position:relative;width:100%;height:100%;z-index:1}canvas{display:block}#ui-layer{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;padding:20px}