:root{color-scheme:dark;font-family:Segoe UI,system-ui,-apple-system,sans-serif;line-height:1.5}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{min-height:100vh;background:#0a0a0a;color:#fafafa;overflow:hidden}.game-container{width:100vw;height:100vh;display:flex;align-items:center;justify-content:center;position:relative}.game-canvas{border:2px solid #333;border-radius:8px;image-rendering:pixelated;max-width:100vw;max-height:100vh}.menu-screen{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center}.menu-bg{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,#0a0a1a,#1a0a2a,#0a1a1a)}.menu-content{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:24px;padding:40px}.game-title{font-size:3.5rem;font-weight:900;text-align:center;letter-spacing:-.02em;line-height:1;color:#fff;text-shadow:0 0 40px rgba(100,200,255,.3)}.game-title span{display:block;font-size:2rem;font-weight:400;letter-spacing:.3em;color:#6ec6ff;margin-top:8px}.section-title{font-size:1.8rem;font-weight:700;letter-spacing:.05em;color:#fff}.menu-buttons{display:flex;flex-direction:column;gap:12px;width:220px}.btn{padding:12px 24px;border:2px solid rgba(255,255,255,.15);border-radius:8px;background:#ffffff0d;color:#ddd;font-size:1rem;font-weight:600;letter-spacing:.1em;cursor:pointer;transition:all .15s;font-family:inherit}.btn:hover{background:#ffffff1f;border-color:#ffffff4d;color:#fff;transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn-primary{background:#6ec6ff26;border-color:#6ec6ff;color:#6ec6ff}.btn-primary:hover{background:#6ec6ff40}.back-btn{margin-top:16px}.controls-hint{text-align:center;color:#ffffff59;font-size:.8rem;font-family:monospace;margin-top:16px}.controls-hint p{margin:4px 0}.level-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;max-width:400px}.level-card{display:flex;flex-direction:column;align-items:center;gap:4px;padding:16px 12px;border:2px solid rgba(255,255,255,.1);border-radius:8px;background:#ffffff08;cursor:pointer;transition:all .15s;color:#ddd;font-family:inherit}.level-card.unlocked:hover{border-color:#6ec6ff;background:#6ec6ff1a}.level-card.locked{opacity:.4;cursor:not-allowed}.level-num{font-size:1.5rem;font-weight:700;color:#6ec6ff}.level-name{font-size:.75rem;color:#fff9}.lock{font-size:.65rem;color:#f66;letter-spacing:.1em}.coin-display{font-size:1.2rem;color:gold;font-weight:600}.skin-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.skin-card{display:flex;flex-direction:column;align-items:center;gap:6px;padding:12px;border:2px solid rgba(255,255,255,.1);border-radius:8px;background:#ffffff08;cursor:pointer;transition:all .15s;color:#ddd;font-family:inherit;font-size:.75rem}.skin-card:hover,.skin-card.selected{border-color:#6ec6ff;background:#6ec6ff1a}.skin-preview{width:32px;height:32px;border-radius:50%;border:2px solid rgba(255,255,255,.2)}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#000000bf;display:flex;align-items:center;justify-content:center;z-index:10;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.overlay-content{display:flex;flex-direction:column;align-items:center;gap:16px;padding:40px;background:#14141ef2;border:2px solid rgba(255,255,255,.1);border-radius:12px;min-width:280px}.overlay-content h2{font-size:2rem;letter-spacing:.1em}.overlay-content p{color:#fff9}.game-over-title{color:#f44}.victory-title{color:gold;text-shadow:0 0 20px rgba(255,215,0,.3)}.victory-sub{color:#6ec6ff;font-weight:600}