:root{--bg: #0A0014;--surface: #1A0028;--primary: #00F5FF;--primary-dark: #00C2D1;--accent: #FF006E;--text: #F0F0FF;--text-muted: #A8A8C8;--border: #2A1845;--success: #10B981;--warning: #F59E0B;--danger: #FF006E;--radius: 4px;--shadow: 0 12px 36px rgba(0,0,0,.4), 0 0 28px #00F5FF26}body{background:var(--bg);color:var(--text);font-family:JetBrains Mono,SF Mono,Consolas,monospace;margin:0;padding:0}.app{width:100vw;height:100vh;display:flex;align-items:center;justify-content:center;position:relative;background:linear-gradient(135deg,#0a0014,#1a0028),repeating-linear-gradient(0deg,transparent,transparent 39px,#00F5FF11 40px),repeating-linear-gradient(90deg,transparent,transparent 39px,#FF006E08 40px)}.game-canvas{border:2px solid var(--primary);box-shadow:var(--shadow);border-radius:var(--radius);background:#000}.start-screen,.end-screen{text-align:center;background:#1a0028e6;padding:60px;border-radius:var(--radius);border:1px solid var(--border);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.start-screen h1,.end-screen h1{font-family:Orbitron,monospace;font-size:48px;text-shadow:0 0 20px var(--accent);margin-bottom:20px}button{background:var(--primary);color:#0a0014;border:none;padding:16px 48px;font-size:18px;font-weight:700;border-radius:var(--radius);cursor:pointer;box-shadow:0 0 24px var(--primary);transition:all .2s}button:hover{background:var(--primary-dark);transform:scale(1.05)}.loading{position:absolute;top:20px;font-size:14px;color:var(--text-muted)}p{color:var(--text-muted)}