button{width:200px;padding:12px;background-color:#007bff;color:#fff;font-size:1rem;border:none;border-radius:8px;cursor:pointer;transition:background-color .3s,transform .3s;display:flex;justify-content:center;align-items:center;gap:.5rem}button:hover{background-color:#2e93ff}button:disabled{cursor:not-allowed;background-color:#007bff}button:disabled:hover{background-color:#007bff}input{width:180px;padding:10px;margin:10px 0;border:1px solid #ccc;border-radius:8px;font-size:1rem;outline:none;transition:border-color .3s}input:focus{border-color:#007bff}.select{width:200px;margin-bottom:20px;padding:10px;font-size:1rem;border:2px solid #007bff;border-radius:8px;background-color:#fff;color:#333;cursor:pointer;outline:none;transition:all .3s ease;-webkit-appearance:none;-moz-appearance:none;appearance:none}.select:hover{border-color:#1a88ff}.select:focus{border-color:#3395ff;box-shadow:0 0 5px #007bff80}.chat-container{width:100%;max-width:400px;height:500px;display:flex;flex-direction:column;border:2px solid #007bff;border-radius:8px;overflow:hidden;justify-content:center;align-items:center}.chat-container .chat-box{width:100%;margin:10px 6px;padding:2px;flex:1;overflow-y:auto;background-color:#f8f9fa;display:flex;flex-direction:column;gap:4px}.chat-container .chat-box .system-message{text-align:center;margin:4px 0;font-size:.95rem;padding-right:2px}.chat-container .chat-box>li{display:flex;flex-direction:column;gap:2px;width:100%;max-width:45%;border-radius:5px;padding:10px}.chat-container .chat-box>li.my-message{align-self:flex-end;max-width:60%;display:flex;flex-direction:column;align-items:flex-end;gap:4px}.chat-container .chat-box>li.my-message span{font-size:.95rem;margin-bottom:4px;padding-right:2px}.chat-container .chat-box>li.my-message p{font-weight:400;color:#fff;margin:0;background-color:#007bff;padding:10px 15px;border-radius:15px;max-width:80%;text-align:start}.chat-container .chat-box>li.opponent-message{align-self:flex-start;max-width:60%;display:flex;flex-direction:column;align-items:flex-start;gap:4px}.chat-container .chat-box>li.opponent-message span{font-size:.95rem;padding-right:2px;margin-bottom:4px}.chat-container .chat-box>li.opponent-message p{font-weight:400;color:#333;margin:0;background-color:#ccc;padding:10px 15px;border-radius:15px;max-width:80%;text-align:start;align-items:flex-start}.chat-container .chat-input{display:flex;height:10%;width:100%;border-top:2px solid #007bff}.chat-container .chat-input input{flex:1;padding:10px;border:none;outline:none;background-color:inherit}.chat-container .chat-input button{padding:12px;background-color:#007bff;color:#fff;font-size:1rem;border:none;cursor:pointer;transition:background-color .3s,transform .3s;display:flex;justify-content:center;align-items:center;gap:.5rem;flex-basis:20%;border-radius:0}.chat-container .chat-input button:hover{background-color:#2e93ff}.chat-container .chat-input button:disabled{cursor:not-allowed;background-color:#007bff}.chat-container .chat-input button:disabled:hover{background-color:#007bff}.exit-button{padding:12px;background-color:#007bff;color:#fff;font-size:1rem;border:none;cursor:pointer;transition:background-color .3s,transform .3s;display:flex;justify-content:center;align-items:center;gap:.5rem;margin-top:10px;width:100%;max-width:406px;border-radius:8px}.exit-button:hover{background-color:#2e93ff}.exit-button:disabled{cursor:not-allowed;background-color:#007bff}.exit-button:disabled:hover{background-color:#007bff}@media (max-width: 768px){.chat-container{height:90dvh;max-width:100%}.chat-container .chat-box{width:100%;margin:6px 4px;padding:1px;flex:1;overflow-y:auto;background-color:#f8f9fa;display:flex;flex-direction:column;gap:4px}.chat-container .chat-box .system-message{text-align:center;margin:4px 0;font-size:.95rem;padding-right:2px}.chat-container .chat-box>li{display:flex;flex-direction:column;gap:2px;width:100%;max-width:45%;border-radius:5px;padding:10px}.chat-container .chat-box>li.my-message{align-self:flex-end;max-width:60%;display:flex;flex-direction:column;align-items:flex-end;gap:4px}.chat-container .chat-box>li.my-message span{font-size:.95rem;margin-bottom:4px;padding-right:2px}.chat-container .chat-box>li.my-message p{font-weight:400;color:#fff;margin:0;background-color:#007bff;padding:10px 15px;border-radius:15px;max-width:80%;text-align:start}.chat-container .chat-box>li.opponent-message{align-self:flex-start;max-width:60%;display:flex;flex-direction:column;align-items:flex-start;gap:4px}.chat-container .chat-box>li.opponent-message span{font-size:.95rem;padding-right:2px;margin-bottom:4px}.chat-container .chat-box>li.opponent-message p{font-weight:400;color:#333;margin:0;background-color:#ccc;padding:10px 15px;border-radius:15px;max-width:80%;text-align:start;align-items:flex-start}.chat-container .chat-box .chat-input{display:flex;height:10%;width:100%;border-top:2px solid #007bff}.chat-container .chat-box .chat-input input{flex:1;padding:10px;border:none;outline:none;background-color:inherit}.chat-container .chat-box .chat-input button{padding:12px;background-color:#007bff;color:#fff;font-size:1rem;border:none;cursor:pointer;transition:background-color .3s,transform .3s;display:flex;justify-content:center;align-items:center;gap:.5rem;flex-basis:20%;border-radius:0}.chat-container .chat-box .chat-input button:hover{background-color:#2e93ff}.chat-container .chat-box .chat-input button:disabled{cursor:not-allowed;background-color:#007bff}.chat-container .chat-box .chat-input button:disabled:hover{background-color:#007bff}}.spinner{width:14px;height:14px;border:2px solid rgba(0,0,0,.1);border-top-color:#fff;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}body{margin:0}.container{font-family:Arial,sans-serif;background-color:#f7f7f7;margin:0;padding:40px 20px;display:flex;flex-direction:column;align-items:center;justify-content:center;height:100dvh}.container>h1{font-size:2.5rem;color:#007bff;margin-bottom:20px}.container p{font-size:1rem;color:#333;font-weight:900;text-align:center}@media (max-width: 768px){.container{padding:20px 10px}.container>h1{font-size:2rem;margin-bottom:15px}.container p{font-size:.9rem;font-weight:700}}