:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100vh;background:#0a0a0a;color:#fafafa}.shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1rem}.game-card{background:#78350f;color:#fde68a;padding:20px;border-radius:14px;width:100%;max-width:800px}.game-header{text-align:center;margin-bottom:16px}.game-header h1{margin:0 0 4px;font-size:1.8rem;color:#fde68a}.game-header p{margin:0;color:#d97706;font-size:.85rem}.hud{display:flex;gap:16px;justify-content:center;margin-bottom:14px;flex-wrap:wrap}.hud-item{background:#00000059;padding:6px 16px;border-radius:8px;font-size:.9rem;font-weight:600}.hud-item span{color:#fcd34d}.battlefield{position:relative;background:#1a0f04;border-radius:10px;overflow:hidden;border:2px solid #92400e}.battlefield canvas{display:block;width:100%;cursor:crosshair}.tower-bar{display:flex;gap:10px;justify-content:center;margin-top:14px;flex-wrap:wrap}.tower-btn{background:#92400e;color:#fde68a;border:2px solid #b45309;padding:8px 16px;border-radius:8px;cursor:pointer;font-size:.85rem;font-weight:600;transition:all .15s}.tower-btn:hover{background:#b45309}.tower-btn.selected{background:#d97706;border-color:#fbbf24;color:#451a03}.tower-btn:disabled{opacity:.4;cursor:not-allowed}.controls{display:flex;gap:10px;justify-content:center;margin-top:12px}.action-btn{background:#166534;color:#bbf7d0;border:2px solid #22c55e;padding:10px 28px;border-radius:8px;cursor:pointer;font-size:.95rem;font-weight:700;transition:all .15s}.action-btn:hover{background:#22c55e;color:#052e16}.game-over-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#000000bf;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:10px;z-index:10}.game-over-overlay h2{font-size:2rem;margin:0 0 8px;color:#fde68a}.game-over-overlay p{color:#d97706;margin:0 0 16px}