:root{--mint-light: #dcedc1;--mint-main: #a8e6cf;--mint-dark: #11999e;--text-main: #333333;--ground-color: #88d4b5}*{box-sizing:border-box;-webkit-user-select:none;user-select:none}body{margin:0;padding:0;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background-color:#f0f8f5;overflow:hidden;touch-action:none}.app-container{width:100vw;height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center}.top-bar{position:absolute;top:20px;left:20px;z-index:100;display:flex;flex-direction:column;gap:8px}.cloud-badge{display:flex;align-items:center;gap:6px;background:#fffc;padding:6px 12px;border-radius:20px;font-size:14px;color:var(--mint-dark);font-weight:600;box-shadow:0 2px 10px #0000000d;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.cloud-toast{background:var(--mint-dark);color:#fff;padding:6px 12px;border-radius:8px;font-size:14px;box-shadow:0 4px 12px #11999e4d}.game-viewport{position:relative;width:100%;max-width:800px;height:500px;background:linear-gradient(180deg,#e0f7fa 0%,var(--mint-light) 100%);border-radius:24px;overflow:hidden;box-shadow:0 20px 40px #0000001a;border:4px solid white}.bg-clouds{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none}.bg-cloud{position:absolute;animation:floatCloud linear infinite}.c1{top:40px;left:-100px;animation-duration:30s}.c2{top:100px;left:-100px;animation-duration:45s;animation-delay:-15s}.c3{top:20px;left:-100px;animation-duration:25s;animation-delay:-5s}@keyframes floatCloud{0%{transform:translate(-100px)}to{transform:translate(900px)}}.hud{position:absolute;top:20px;right:20px;left:20px;display:flex;justify-content:space-between;z-index:10;pointer-events:none}.score-board{background:#ffffffe6;padding:8px 16px;border-radius:16px;display:flex;align-items:center;gap:10px;box-shadow:0 4px 12px #0000000d}.score-label{font-size:12px;font-weight:700;color:#888;letter-spacing:1px}.score-value{font-size:24px;font-weight:900;color:var(--text-main);font-family:monospace}.lives-board{display:flex;gap:4px;background:#ffffffe6;padding:8px 12px;border-radius:16px;box-shadow:0 4px 12px #0000000d}.game-world{position:absolute;width:100%;height:100%;top:0;left:0}.player,.obstacle,.coin{position:absolute;display:flex;justify-content:center;align-items:center;will-change:transform}.entity-img{width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 4px 6px rgba(0,0,0,.2))}.fallback-emoji{font-size:30px;line-height:1}.spin{animation:spinCoin 2s linear infinite}@keyframes spinCoin{0%{transform:rotateY(0)}to{transform:rotateY(360deg)}}.ground{position:absolute;width:100%;height:200px;background:var(--ground-color);border-top:6px solid #6abf9a;background-image:repeating-linear-gradient(45deg,transparent,transparent 20px,rgba(255,255,255,.1) 20px,rgba(255,255,255,.1) 40px)}.overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#ffffff4d;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;justify-content:center;align-items:center;z-index:50}.panel{background:#fff;padding:40px;border-radius:24px;text-align:center;box-shadow:0 20px 50px #00000026;border:2px solid var(--mint-light);display:flex;flex-direction:column;align-items:center;gap:16px}.title{margin:0;font-size:36px;color:var(--mint-dark);font-weight:900;text-shadow:2px 2px 0px var(--mint-light)}.highscore-display{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:700;color:#666;background:#f9f9f9;padding:8px 16px;border-radius:12px}.instruction{color:#888;font-size:14px;margin-bottom:10px}.gameover-title{margin:0;font-size:40px;color:#ff6b6b;font-weight:900}.final-score{font-size:24px;font-weight:700;color:var(--text-main)}.new-record{color:#f4c150;font-weight:700;font-size:18px;animation:pulse 1s infinite}.btn-primary{background:linear-gradient(135deg,var(--mint-main),var(--mint-dark));color:#fff;border:none;padding:12px 32px;font-size:18px;font-weight:700;border-radius:100px;cursor:pointer;display:flex;align-items:center;gap:8px;box-shadow:0 8px 20px #11999e4d;transition:transform .1s,box-shadow .1s}.btn-primary:active{transform:scale(.95);box-shadow:0 4px 10px #11999e33}.mt-4{margin-top:16px}.loading-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:var(--mint-light);display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:200;color:var(--mint-dark);font-weight:700}.spinner{width:40px;height:40px;border:4px solid rgba(255,255,255,.5);border-top-color:var(--mint-dark);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:16px}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.05)}to{transform:scale(1)}}