.room-section {
            margin: 20px 0;
            padding: 20px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 16px;
            backdrop-filter: blur(10px);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
        }

        input,
        button {
            padding: 12px 16px;
            margin: 8px 4px;
            font-size: 16px;
            border: none;
            border-radius: 30px;
            font-weight: 600;
        }

        input {
            background: rgba(255, 255, 255, 0.9);
            color: #333;
            min-width: 200px;
        }

        button {
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
        }

        .btn-create {
            background: linear-gradient(45deg, #2ecc71, #27ae60);
        }

        .btn-join {
            background: linear-gradient(45deg, #3498db, #2980b9);
        }

        .btn-start {
            background: linear-gradient(45deg, #e74c3c, #c0392b);
        }

        button:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
        }

        #game-area {
            margin-top: 20px;
            display: none;
            margin-left: 30%;
            width: 450px;
        }

        #room-info {
            margin: 10px 0;
            font-size: 18px;
            font-weight: 500;
        }

        .copy-btn {
            background: rgba(255, 255, 255, 0.3);
            padding: 8px 12px;
            font-size: 14px;
            margin-left: 8px;
        }

        .waiting {
            color: #f1c40f;
            animation: blink 1.5s infinite;
        }

        @keyframes blink {

            0%,
            100% {
                opacity: 1;
            }

            50% {
                opacity: 0.5;
            }
        }