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ease}.retry-btn:hover{background:#45a049;transform:translateY(-2px)}.game-session-error{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;text-align:center;padding:2rem}.connection-error{background:#ffffff1a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:16px;padding:3rem;border:1px solid rgba(255,255,255,.2);max-width:500px;margin:0 auto}.session-ended-overlay{position:fixed;inset:0;background:#000c;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:2000;animation:fadeIn .3s ease}.session-ended-notification{background:var(--card-bg, rgba(255, 255, 255, .95));border-radius:20px;padding:3rem;max-width:500px;width:calc(100% - 2rem);text-align:center;border:2px solid var(--card-border, rgba(255, 255, 255, .2));box-shadow:0 20px 60px #0006;animation:slideDown .4s ease}@keyframes slideDown{0%{opacity:0;transform:translateY(-30px)}to{opacity:1;transform:translateY(0)}}.session-ended-notification h2{margin:0 0 1rem;font-size:2rem;color:var(--text-primary, #333)}.session-ended-notification p{margin:.75rem 0;font-size:1.1rem;color:var(--text-secondary, #666);line-height:1.6}.session-ended-notification p:last-child{font-style:italic;opacity:.8}.error-boundary{display:flex;justify-content:center;align-items:center;min-height:50vh;text-align:center;padding:20px}.error-content{max-width:500px}.btn{padding:10px 20px;margin:10px;border:none;border-radius:5px;cursor:pointer}.btn-primary{background:#007bff;color:#fff}.btn-secondary{background:#6c757d;color:#fff}.app{min-height:100vh;background:linear-gradient(135deg,var(--bg-gradient-start) 0%,var(--bg-gradient-end) 100%);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.App{text-align:center;min-height:100vh;background:linear-gradient(135deg,var(--bg-gradient-start) 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#4CAF50;border-radius:50%;animation:spin 1.2s cubic-bezier(.5,0,.5,1) infinite}.spinner-ring:nth-child(1){width:60px;height:60px;animation-delay:-.45s}.spinner-ring:nth-child(2){width:48px;height:48px;top:6px;left:6px;animation-delay:-.3s}.spinner-ring:nth-child(3){width:36px;height:36px;top:12px;left:12px;animation-delay:-.15s}.spinner-ring:nth-child(4){width:24px;height:24px;top:18px;left:18px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading-message{font-size:1.1rem;opacity:.9;margin:0}.error-boundary{display:flex;justify-content:center;align-items:center;min-height:100vh;text-align:center;padding:20px}.error-content{max-width:500px;background:var(--card-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:12px;padding:30px}.error-content h2{margin-bottom:16px;color:var(--error-color)}.error-content p{margin-bottom:24px;opacity:.9}.error-details{text-align:left;margin:20px 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var(--card-border);background:var(--card-bg);color:var(--text-primary);border-radius:8px;font-size:1.5rem;font-weight:700;cursor:pointer;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center}.vote-card:hover{background:var(--card-hover-bg);transform:translateY(-2px)}.vote-card.selected{background:linear-gradient(135deg,#4caf50,#45a049);border-color:#4caf50;transform:translateY(-4px) scale(1.05)}.vote-card:disabled,.vote-card.disabled{cursor:not-allowed;opacity:.5}@media (max-width: 768px){.App-header{padding:1rem}.App-header h1{font-size:2rem}.session-content{padding:15px}.voting-cards{gap:.5rem}.vote-card{width:50px;height:70px;font-size:1.2rem}.error-actions{flex-direction:column}.btn{width:100%;max-width:200px}}@media (max-width: 480px){.app{padding:10px}.vote-card{width:45px;height:60px;font-size:1rem}.loading-spinner{width:40px;height:40px}}