:root{--bg-color: #0f172a;--text-color: #f8fafc;--primary-color: #06b6d4;--secondary-color: #8b5cf6;--accent-color: #f43f5e;--glass-bg: rgba(30, 41, 59, .7);--glass-border: rgba(255, 255, 255, .1);--font-family: "Inter", sans-serif}body{margin:0;background-color:var(--bg-color);color:var(--text-color);font-family:var(--font-family);min-height:100vh;display:flex;justify-content:center;align-items:center;background-image:radial-gradient(circle at 10% 20%,rgba(6,182,212,.1) 0%,transparent 20%),radial-gradient(circle at 90% 80%,rgba(139,92,246,.1) 0%,transparent 20%)}.App{width:100%;max-width:500px;padding:2rem;text-align:center}h1{font-size:3rem;font-weight:700;margin-bottom:2rem;background:linear-gradient(to right,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;background-clip:text;color:transparent;text-shadow:0 0 20px rgba(6,182,212,.3)}.login,.matchmaking,.game{background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:16px;padding:2rem;box-shadow:0 8px 32px #0000004d;animation:fadeIn .5s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.login-tabs{display:flex;margin-bottom:1.5rem;background:#ffffff0d;border-radius:8px;padding:4px}.tab-btn{flex:1;background:transparent;color:#fff9;margin:0;border-radius:6px;font-size:.9rem;padding:8px}.tab-btn.active{background:#ffffff1a;color:var(--text-color);box-shadow:0 2px 4px #0003}.tab-btn:hover:not(.active){background:#ffffff0d;color:#fffc;transform:none;box-shadow:none}input{width:100%;padding:12px 16px;margin-bottom:1rem;background:#0f172a99;border:1px solid var(--glass-border);border-radius:8px;color:var(--text-color);font-size:1rem;font-family:var(--font-family);transition:all .3s ease;box-sizing:border-box}input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 2px #06b6d433}button{width:100%;padding:12px 20px;margin-bottom:1rem;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;text-transform:uppercase;letter-spacing:.5px}button:hover{transform:translateY(-2px);box-shadow:0 4px 12px #06b6d466}button:active{transform:translateY(0)}.guest-btn{background:transparent;border:1px solid var(--primary-color);color:var(--primary-color)}.guest-btn:hover{background:#06b6d41a;box-shadow:0 4px 12px #06b6d433}.back-btn{background:#ffffff1a;margin-top:1rem}.back-btn:hover{background:#fff3;box-shadow:none}.divider{margin:1.5rem 0;color:#fff6;font-size:.9rem;font-weight:600;position:relative}.divider:before,.divider:after{content:"";position:absolute;top:50%;width:40%;height:1px;background:#ffffff1a}.divider:before{left:0}.divider:after{right:0}.board{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:2rem auto;max-width:320px}.cell{aspect-ratio:1;background:#ffffff0d;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:3rem;font-weight:700;cursor:pointer;transition:all .2s ease;color:var(--text-color)}.cell:hover{background:#ffffff1a;transform:scale(1.05)}.cell:contains("X"){color:var(--primary-color);text-shadow:0 0 10px var(--primary-color)}.cell:contains("O"){color:var(--secondary-color);text-shadow:0 0 10px var(--secondary-color)}.status{font-size:1.5rem;font-weight:600;margin-bottom:1rem;min-height:2rem}.history-section{margin-top:2rem;border-top:1px solid var(--glass-border);padding-top:1rem}.history-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.history-header h3{margin:0;font-size:1.2rem;color:#fffc}.refresh-btn{width:auto;padding:4px 8px;margin:0;background:transparent;font-size:1.2rem;color:var(--primary-color)}.refresh-btn:hover{transform:rotate(180deg);box-shadow:none}.history-list{list-style:none;padding:0;margin:0;max-height:200px;overflow-y:auto}.history-item{display:flex;justify-content:space-between;align-items:center;padding:10px;margin-bottom:8px;background:#ffffff08;border-radius:8px;font-size:.9rem;transition:background .2s}.history-item:hover{background:#ffffff0f}.history-item .result{font-weight:700;padding:2px 6px;border-radius:4px;font-size:.8rem}.history-item.win .result{color:#4ade80;background:#4ade801a}.history-item.loss .result{color:var(--accent-color);background:#f43f5e1a}.history-item.draw .result{color:#fbbf24;background:#fbbf241a}.history-item .date{font-size:.75rem;color:#fff6}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#fff3}.error{color:var(--accent-color);background:#f43f5e1a;padding:10px;border-radius:8px;margin-bottom:1rem;border:1px solid rgba(244,63,94,.2)}.credits{margin-top:2rem;display:flex;justify-content:center}.credit-btn{display:flex;flex-direction:column;align-items:center;background:#ffffff0d;padding:10px 20px;border-radius:12px;text-decoration:none;border:1px solid var(--glass-border);transition:all .3s ease}.credit-btn:hover{background:#ffffff1a;transform:translateY(-2px);box-shadow:0 4px 12px #0003;border-color:var(--primary-color)}.credit-btn .role{font-size:.8rem;color:var(--primary-color);text-transform:uppercase;letter-spacing:1px;margin-bottom:4px}.credit-btn .name{font-size:1.1rem;font-weight:700;color:var(--text-color)}:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}