:root{--color-bg: #050510;--color-primary: #00f3ff;--color-secondary: #ff00ff;--color-accent: #ffe600;--color-text: #ffffff;--color-panel-bg: rgba(10, 10, 20, .85);--color-panel-border: rgba(255, 255, 255, .1);--font-main: "Inter", system-ui, -apple-system, sans-serif;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px}body{margin:0;padding:0;width:100vw;height:100vh;background-color:var(--color-bg);color:var(--color-text);font-family:var(--font-main);overflow:hidden;user-select:none;-webkit-user-select:none}#root{width:100%;height:100%;display:flex;justify-content:center;align-items:center}canvas{display:block;width:100%;height:100%;touch-action:none}.ui-layer{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;display:flex;flex-direction:column;justify-content:space-between;padding:var(--spacing-md);box-sizing:border-box}.ui-element{pointer-events:auto;background:var(--color-panel-bg);border:1px solid var(--color-panel-border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:12px;padding:var(--spacing-md);color:var(--color-text)}button{background:transparent;border:1px solid var(--color-primary);color:var(--color-primary);padding:8px 16px;border-radius:6px;cursor:pointer;font-family:inherit;font-weight:600;text-transform:uppercase;letter-spacing:1px;transition:all .2s ease}button:hover{background:var(--color-primary);color:var(--color-bg);box-shadow:0 0 15px var(--color-primary)}button:active{transform:scale(.95)}body,html{margin:0;padding:0;width:100%;height:100%;overflow:hidden;background:#050510;font-family:Courier New,Courier,monospace;-webkit-user-select:none;user-select:none;touch-action:none}.app-container{position:relative;width:100vw;height:100vh}.canvas-layer{position:absolute;top:0;left:0;width:100%;height:100%;z-index:0}.ui-layer{position:absolute;top:0;left:0;width:100%;height:100%;z-index:10;pointer-events:none}.ui-layer>*{pointer-events:auto}.hud-container{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;padding:20px;box-sizing:border-box;display:flex;flex-direction:column;justify-content:space-between}.top-bar{display:flex;justify-content:space-between;font-size:1.5rem;font-weight:700;text-shadow:0 0 10px #00f3ff;color:#fff;margin-top:10px}.health-bar-container{position:absolute;left:50%;transform:translate(-50%);width:90%;max-width:500px;z-index:10}.health-bar-container.enemy{top:60px;margin:0}.health-bar-container.player{bottom:40px;margin:0}.label{font-size:.9rem;margin-bottom:4px;opacity:.9;color:#fff;font-weight:700;text-transform:uppercase;letter-spacing:1px;text-shadow:0 0 5px black}.bar-bg{width:100%;height:15px;background:#0009;border:1px solid rgba(255,255,255,.3);border-radius:10px;overflow:hidden}.bar-fill{height:100%}.bar-fill.red{background:linear-gradient(90deg,#f05,#f50);box-shadow:0 0 15px #f05}.bar-fill.blue{background:linear-gradient(90deg,#00f3ff,#05f);box-shadow:0 0 15px #00f3ff}.controls-hint{position:absolute;bottom:30px;width:100%;text-align:center;font-size:1rem;opacity:.7;left:0;color:#fff;text-shadow:0 0 5px black;pointer-events:none}.menu-container{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;background:#000000b3;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.game-title{font-size:15vw;max-font-size:6rem;text-align:center;color:transparent;background:linear-gradient(to bottom,#00f3ff,#f0f);-webkit-background-clip:text;background-clip:text;margin-bottom:50px;text-shadow:0 0 20px rgba(0,243,255,.5);line-height:1}.menu-buttons{display:flex;flex-direction:column;gap:20px;width:80%;max-width:400px}.menu-btn{padding:20px 0;font-size:1.5rem;background:transparent;border:2px solid #00f3ff;color:#00f3ff;border-radius:12px;cursor:pointer;transition:all .2s;text-transform:uppercase;-webkit-user-select:none;user-select:none;font-weight:700;width:100%}.menu-btn.primary{background:#00f3ff1a;box-shadow:0 0 20px #00f3ff33}.glass-panel{background:#00142899;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid rgba(0,243,255,.3);box-shadow:0 0 20px #00f3ff1a}.menu-btn:active{transform:scale(.95);background:#00f3ff;color:#000}.shop-container{position:absolute;top:0;left:0;width:100%;height:100%;background:#000000e6;color:#fff;display:flex;flex-direction:column;align-items:center;padding:20px;box-sizing:border-box;overflow-y:auto}.shop-container h1{font-size:2.5rem;color:#f0f;text-shadow:0 0 10px #ff00ff;margin-top:40px}.currency-display{font-size:2rem;color:gold;margin-bottom:30px}.upgrades-grid{display:flex;flex-direction:column;gap:20px;margin-bottom:30px;width:100%;max-width:400px}.upgrade-card{background:#ffffff0d;border:1px solid #333;padding:20px;border-radius:15px;text-align:center;display:flex;justify-content:space-between;align-items:center}.upgrade-card h3{margin:0;font-size:1.2rem}.stat-value{font-size:1.5rem;font-weight:700;color:#00f3ff}.upgrade-btn{width:auto;padding:10px 20px;background:#00f3ff;border:none;border-radius:8px;font-weight:700;cursor:pointer}.next-battle-btn{width:100%;max-width:400px;padding:25px 0;font-size:1.8rem;background:#f05;color:#fff;border:none;border-radius:15px;cursor:pointer;box-shadow:0 0 20px #f05;margin-bottom:40px}