:root{--bg-dark: #0f0f23;--bg-card: #1a1a2e;--bg-elevated: #252545;--primary: #6366f1;--primary-hover: #818cf8;--secondary: #8b5cf6;--success: #22c55e;--danger: #ef4444;--warning: #f59e0b;--x-color: #6366f1;--o-color: #8b5cf6;--text-primary: #f8fafc;--text-secondary: #94a3b8;--border: rgba(255, 255, 255, .1);--shadow: 0 4px 6px -1px rgba(0, 0, 0, .25);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .3)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg-dark);color:var(--text-primary);min-height:100vh;line-height:1.6}.app{max-width:1200px;margin:0 auto;padding:1rem}@media (min-width: 768px){.app{padding:2rem}}.header{background:var(--bg-card);border:1px solid var(--border);border-radius:1rem;padding:1.5rem;margin-bottom:1.5rem}.header-title{font-size:1.75rem;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:1rem}.user-info{display:flex;align-items:center;gap:1rem}.username{font-weight:600;color:var(--text-primary)}.connection-dot{width:10px;height:10px;border-radius:50%;animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes winnerPulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}.stat-item{background:var(--bg-elevated);border:1px solid var(--border);border-radius:.75rem;padding:1rem;text-align:center}.stat-value{font-size:1.5rem;font-weight:700;color:var(--primary)}.stat-label{font-size:.75rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.game-container{display:grid;gap:1.5rem;grid-template-columns:1fr}@media (min-width: 1024px){.game-container{grid-template-columns:300px 1fr}}.sidebar{display:flex;flex-direction:column;gap:1rem}.panel{background:var(--bg-card);border:1px solid var(--border);border-radius:1rem;padding:1.5rem}.panel-title{font-size:1rem;margin-bottom:1rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.player-list{display:flex;flex-direction:column;gap:.5rem}.player-item{display:flex;align-items:center;gap:.75rem;padding:.75rem;background:var(--bg-elevated);border-radius:.5rem;border:1px solid transparent;transition:border-color .2s}.player-item.current{border-color:var(--primary)}.player-avatar{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1rem}.player-avatar.x{background:#6366f133;color:var(--x-color)}.player-avatar.o{background:#8b5cf633;color:var(--o-color)}.player-name{flex:1;font-weight:500}.player-symbol{font-weight:700}.player-symbol.x{color:var(--x-color)}.player-symbol.o{color:var(--o-color)}.queue-list{display:flex;flex-direction:column;gap:.5rem}.queue-item{display:flex;align-items:center;gap:.75rem;padding:.75rem;background:var(--bg-elevated);border-radius:.5rem}.queue-position{width:28px;height:28px;border-radius:50%;background:var(--bg-dark);display:flex;align-items:center;justify-content:center;font-size:.875rem;font-weight:600;color:var(--text-secondary)}.queue-position.you{background:var(--primary);color:#fff}.game-main{display:flex;flex-direction:column;gap:1.5rem}.status-bar{background:var(--bg-card);border:1px solid var(--border);border-radius:1rem;padding:1.5rem;display:flex;flex-direction:column;gap:1rem;align-items:center}@media (min-width: 768px){.status-bar{flex-direction:row;justify-content:space-between}}.status-text{font-size:1.25rem;font-weight:600}.status-text.your-turn{color:var(--success)}.status-text.waiting{color:var(--text-secondary)}.board{display:grid;grid-template-columns:repeat(3,1fr);gap:.75rem;aspect-ratio:1;max-width:400px;width:100%;margin:0 auto;padding:1rem}.cell{background:var(--bg-card);border:2px solid var(--border);border-radius:1rem;font-size:2.5rem;font-weight:700;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;aspect-ratio:1}.cell:hover:not(:disabled){background:var(--bg-elevated);border-color:var(--primary);transform:scale(1.02)}.cell:disabled{cursor:not-allowed}.cell.x{color:var(--x-color);background:#6366f11a;border-color:var(--x-color)}.cell.o{color:var(--o-color);background:#8b5cf61a;border-color:var(--o-color)}.cell.winner{animation:winnerPulse 1s ease-in-out infinite;box-shadow:0 0 20px var(--success)}.button{background:var(--primary);color:#fff;border:none;border-radius:.75rem;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s}.button:hover{background:var(--primary-hover);transform:translateY(-2px)}.button:disabled{opacity:.5;cursor:not-allowed;transform:none}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000c;display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:var(--bg-card);border:1px solid var(--border);border-radius:1rem;padding:2rem;max-width:400px;width:90%}.modal-title{font-size:1.5rem;margin-bottom:1.5rem;text-align:center}.input{width:100%;padding:.75rem 1rem;background:var(--bg-dark);border:1px solid var(--border);border-radius:.5rem;color:var(--text-primary);font-size:1rem;margin-bottom:1rem}.input:focus{outline:none;border-color:var(--primary)}.result-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000e6;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:2000;gap:1.5rem}.result-title{font-size:3rem;font-weight:700}.result-title.win{color:var(--success)}.result-title.loss{color:var(--danger)}.result-title.draw{color:var(--warning)}