:root{--bg-color: #0f172a;--panel-bg: rgba(30, 41, 59, .7);--primary: #3b82f6;--primary-hover: #2563eb;--text-main: #f8fafc;--text-muted: #94a3b8;--accent: #10b981}*{box-sizing:border-box;margin:0;padding:0;-webkit-user-select:none;user-select:none}body{background-color:var(--bg-color);background-image:radial-gradient(circle at 50% 0%,#1e293b,#0f172a);color:var(--text-main);font-family:Segoe UI,system-ui,sans-serif;display:flex;justify-content:center;align-items:center;min-height:100vh;overflow:hidden}.app-container{width:100%;max-width:480px;height:100vh;max-height:800px;display:flex;flex-direction:column;position:relative;box-shadow:0 25px 50px -12px #00000080}.cloud-status-bar{position:absolute;top:12px;left:50%;transform:translate(-50%);z-index:100;display:flex;align-items:center;gap:6px;background:#0009;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:6px 16px;border-radius:20px;font-size:12px;color:var(--text-muted);border:1px solid rgba(255,255,255,.1)}.cloud-status-bar .icon{width:14px;height:14px;color:var(--accent)}.cloud-status-bar .icon.spin{animation:pulse 1.5s infinite;color:#fbbf24}.cloud-status-bar .icon.error{color:#ef4444}@keyframes pulse{0%{opacity:.5;transform:scale(.9)}50%{opacity:1;transform:scale(1.1)}to{opacity:.5;transform:scale(.9)}}.game-wrapper{flex:1;position:relative;display:flex;justify-content:center;align-items:center;padding:20px}.screen{width:100%;background:var(--panel-bg);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-radius:24px;padding:40px 24px;display:flex;flex-direction:column;align-items:center;border:1px solid rgba(255,255,255,.1);box-shadow:0 10px 30px #0000004d}.title-container{text-align:center;margin-bottom:40px}.ball-decoration{font-size:64px;margin-bottom:10px;filter:drop-shadow(0 4px 8px rgba(0,0,0,.4));animation:bounce 2s infinite ease-in-out}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-15px)}}h1{font-size:32px;font-weight:800;margin-bottom:8px;background:linear-gradient(to right,#60a5fa,#34d399);-webkit-background-clip:text;color:transparent}.subtitle{color:var(--text-muted);font-size:16px;letter-spacing:2px}.stats-card{display:flex;align-items:center;gap:16px;background:#ffffff0d;padding:16px 24px;border-radius:16px;margin-bottom:30px;width:100%;border:1px solid rgba(255,255,255,.05)}.trophy-icon{color:#fbbf24;width:32px;height:32px}.stats-info{display:flex;flex-direction:column}.stats-label{font-size:12px;color:var(--text-muted);text-transform:uppercase}.stats-value{font-size:24px;font-weight:700;color:#fff}.text-sm{font-size:14px;font-weight:400;color:var(--text-muted)}.instructions{display:flex;align-items:flex-start;gap:10px;background:#3b82f61a;color:#93c5fd;padding:16px;border-radius:12px;font-size:14px;line-height:1.5;margin-bottom:40px}.primary-btn{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:16px;border:none;border-radius:16px;background:linear-gradient(135deg,var(--primary),#2563eb);color:#fff;font-size:18px;font-weight:700;cursor:pointer;box-shadow:0 8px 20px #3b82f666;transition:box-shadow .2s}.primary-btn:hover{box-shadow:0 12px 25px #3b82f699}.game-board-container{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative}.hud{position:absolute;top:40px;width:100%;max-width:400px;display:flex;justify-content:space-between;padding:0 20px;z-index:10;pointer-events:none}.score-badge{padding:8px 16px;border-radius:20px;font-weight:700;font-size:18px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);box-shadow:0 4px 12px #0000004d}.ai-score{background:#ef4444cc;color:#fff;border:2px solid #f87171}.player-score{background:#3b82f6cc;color:#fff;border:2px solid #60a5fa}.game-canvas{background:#166534;border-radius:12px;box-shadow:0 0 0 4px #ffffff1a,0 20px 40px #00000080;touch-action:none;max-width:100%;max-height:80vh;object-fit:contain}.control-hint{margin-top:16px;color:var(--text-muted);font-size:14px;display:flex;align-items:center;gap:8px}.control-hint:before,.control-hint:after{content:"";height:1px;width:30px;background:#fff3}.gameover-screen h2{font-size:36px;margin-bottom:30px}.win-text{color:#fbbf24;text-shadow:0 0 20px rgba(251,191,36,.5)}.lose-text{color:#94a3b8}.final-score{display:flex;align-items:center;justify-content:center;gap:20px;margin-bottom:40px;background:#0000004d;padding:30px;border-radius:20px;width:100%}.score-box{display:flex;flex-direction:column;align-items:center;gap:10px}.score-box span{font-size:16px;color:var(--text-muted)}.score-box strong{font-size:48px;line-height:1}.score-box.player strong{color:#60a5fa}.score-box.ai strong{color:#f87171}.score-divider{font-size:36px;color:#fff3;font-weight:700}.cloud-save-toast{background:#10b98133;color:#34d399;padding:12px 20px;border-radius:12px;font-size:14px;margin-bottom:30px;border:1px solid rgba(16,185,129,.3);animation:slideUp .5s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}