*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:linear-gradient(135deg,#6b21a8,#4c1d95);min-height:100vh;color:#fff;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}#app{min-height:100vh}.screen{display:none;min-height:100vh;padding:1rem}.screen.active{display:block}.container{max-width:800px;margin:0 auto;padding:2rem 1rem}.title{font-size:3rem;margin-bottom:.5rem;text-align:center;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.subtitle{text-align:center;font-size:1.2rem;margin-bottom:2rem;opacity:.9}.playlist-section{margin-bottom:2rem;padding:1.5rem;background:#0003;border-radius:12px;border:1px solid rgba(255,255,255,.2)}.playlist-section h3{font-size:1.3rem;margin-bottom:.75rem}.info-text{font-size:.9rem;opacity:.8;margin-bottom:1rem}.playlist-input{width:100%;padding:1rem;font-size:1rem;font-family:Courier New,monospace;border:2px solid rgba(255,255,255,.3);border-radius:12px;background:#ffffff1a;color:#fff;resize:vertical;min-height:150px}.playlist-input::placeholder{color:#ffffff80}.playlist-input:focus{outline:none;border-color:#fff9;background:#ffffff26}.preset-buttons{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:.5rem;margin-top:1rem}.btn{width:100%;padding:1rem 2rem;font-size:1.1rem;font-weight:600;border:none;border-radius:12px;cursor:pointer;transition:all .3s;margin-top:.5rem;text-transform:uppercase;letter-spacing:.5px}.btn-primary{background:#fff;color:#6b21a8}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 16px #0000004d}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:#fff3;color:#fff;border:2px solid rgba(255,255,255,.3)}.btn-secondary:hover{background:#ffffff4d;transform:translateY(-2px)}.btn-small{padding:.75rem 1.5rem;font-size:.9rem;text-transform:none;margin-top:0}.rules-info{margin-top:2rem;padding:1.5rem;background:#0003;border-radius:12px;border:1px solid rgba(255,255,255,.2)}.rules-info h3{margin-bottom:1rem;font-size:1.2rem}.rules-info p{margin:.5rem 0;opacity:.9}.game-container{max-width:900px;margin:0 auto;padding:2rem 1rem;display:flex;flex-direction:column;gap:1.5rem}.game-header{display:flex;justify-content:space-between;align-items:center;padding-bottom:1rem;border-bottom:2px solid rgba(255,255,255,.2)}.game-title{font-size:2rem;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.song-counter{font-size:1.5rem;font-weight:700;background:#fff3;padding:.5rem 1rem;border-radius:8px}.video-container{width:100%;background:#0000004d;border-radius:12px;overflow:hidden}.player-wrapper{position:relative;padding-bottom:56.25%;height:0;overflow:hidden}.player-wrapper iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:none}.video-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#6b21a84d;backdrop-filter:blur(50px);-webkit-backdrop-filter:blur(50px);pointer-events:none;z-index:1;display:flex;align-items:center;justify-content:center;font-size:3rem;color:#fff;text-shadow:2px 2px 4px rgba(0,0,0,.5);opacity:1;transition:opacity .8s ease-out,backdrop-filter .8s ease-out}.video-overlay.hidden{opacity:0;backdrop-filter:blur(0px);-webkit-backdrop-filter:blur(0px);transition:opacity .8s ease-out,backdrop-filter .8s ease-out}.video-overlay.no-transition{transition:none}.video-overlay:before{content:"🎵";animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{transform:scale(1);opacity:.8}50%{transform:scale(1.2);opacity:1}}.countdown-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#000000e6;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:1000;gap:1rem}.countdown-overlay.hidden{display:none}.countdown-number{font-size:8rem;font-weight:700;color:#fff;animation:countdownPulse 1s ease-in-out}@keyframes countdownPulse{0%{transform:scale(.5);opacity:0}50%{transform:scale(1.2);opacity:1}to{transform:scale(1);opacity:1}}.countdown-text{font-size:1.5rem;color:#fffc}.song-title{text-align:center;padding:1.5rem;background:#fff3;border-radius:12px;border:2px solid rgba(255,255,255,.3);min-height:80px;display:flex;align-items:center;justify-content:center;transition:all .5s ease;opacity:1}.song-title.hidden{background:#0003;border-color:#ffffff1a;opacity:0}.song-title h3{font-size:1.5rem;animation:fadeIn .8s ease-in}@keyframes fadeIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.game-controls{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.game-controls .btn{margin-top:0}.game-controls .btn-full{grid-column:1 / -1}.progress-bar{width:100%;height:8px;background:#fff3;border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,#a855f7,#ec4899);transition:width .3s ease;width:0%}.game-actions{display:flex;justify-content:center;margin-top:1rem}@media (max-width: 768px){.title{font-size:2.5rem}.game-header{flex-direction:column;gap:1rem;text-align:center}.game-title{font-size:1.5rem}.song-counter,.song-title h3{font-size:1.2rem}}@media (max-width: 480px){.preset-buttons,.game-controls{grid-template-columns:1fr}}